3 * Soft Debugger back-end module
6 * Zoltan Varga (vargaz@gmail.com)
8 * Copyright 2009-2010 Novell, Inc.
9 * Copyright 2011 Xamarin Inc.
10 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
17 #ifdef HAVE_SYS_TYPES_H
18 #include <sys/types.h>
20 #ifdef HAVE_SYS_SELECT_H
21 #include <sys/select.h>
23 #ifdef HAVE_SYS_SOCKET_H
24 #include <sys/socket.h>
26 #ifdef HAVE_NETINET_TCP_H
27 #include <netinet/tcp.h>
29 #ifdef HAVE_NETINET_IN_H
30 #include <netinet/in.h>
52 #include <linux/tcp.h>
53 #include <sys/endian.h>
56 #include <mono/metadata/mono-debug.h>
57 #include <mono/metadata/debug-internals.h>
58 #include <mono/metadata/gc-internals.h>
59 #include <mono/metadata/environment.h>
60 #include <mono/metadata/threads-types.h>
61 #include <mono/metadata/threadpool.h>
62 #include <mono/metadata/assembly.h>
63 #include <mono/metadata/runtime.h>
64 #include <mono/metadata/verify-internals.h>
65 #include <mono/metadata/reflection-internals.h>
66 #include <mono/metadata/w32socket.h>
67 #include <mono/utils/mono-coop-mutex.h>
68 #include <mono/utils/mono-coop-semaphore.h>
69 #include <mono/utils/mono-error-internals.h>
70 #include <mono/utils/mono-stack-unwinding.h>
71 #include <mono/utils/mono-time.h>
72 #include <mono/utils/mono-threads.h>
73 #include <mono/utils/networking.h>
74 #include <mono/utils/mono-proclib.h>
75 #include <mono/utils/w32api.h>
76 #include "debugger-agent.h"
78 #include "seq-points.h"
79 #include "interp/interp.h"
82 * On iOS we can't use System.Environment.Exit () as it will do the wrong
85 #if !defined (TARGET_IOS)
86 #define TRY_MANAGED_SYSTEM_ENVIRONMENT_EXIT
90 #ifndef MONO_ARCH_SOFT_DEBUG_SUPPORTED
91 #define DISABLE_DEBUGGER_AGENT 1
94 #ifdef DISABLE_SOFT_DEBUG
95 #define DISABLE_DEBUGGER_AGENT 1
98 #ifndef DISABLE_DEBUGGER_AGENT
100 #include <mono/utils/mono-os-mutex.h>
102 #define THREAD_TO_INTERNAL(thread) (thread)->internal_thread
125 guint32 il_offset, native_offset;
129 * If method is gshared, this is the actual instance, otherwise this is equal to
132 MonoMethod *actual_method;
134 * This is the method which is visible to debugger clients. Same as method,
135 * except for native-to-managed wrappers.
137 MonoMethod *api_method;
139 MonoDebugMethodJitInfo *jit;
141 MonoInterpFrameHandle interp_frame;
143 mgreg_t *reg_locations [MONO_MAX_IREGS];
145 * Whenever ctx is set. This is FALSE for the last frame of running threads, since
146 * the frame can become invalid.
151 typedef struct _InvokeData InvokeData;
159 /* This is the context which needs to be restored after the invoke */
163 * If this is set, invoke this method with the arguments given by ARGS.
167 guint32 suspend_count;
170 InvokeData *last_invoke;
174 MonoThreadUnwindState context;
176 /* This is computed on demand when it is requested using the wire protocol */
177 /* It is freed up when the thread is resumed */
181 * Whenever the frame info is up-to-date. If not, compute_frame_info () will need to
184 gboolean frames_up_to_date;
186 * Points to data about a pending invoke which needs to be executed after the thread
189 InvokeData *pending_invoke;
191 * Set to TRUE if this thread is suspended in suspend_current () or it is executing
196 * Signals whenever the thread is in the process of suspending, i.e. it will suspend
197 * within a finite amount of time.
201 * Set to TRUE if this thread is suspended in suspend_current ().
203 gboolean really_suspended;
204 /* Used to pass the context to the breakpoint/single step handler */
205 MonoContext handler_ctx;
206 /* Whenever thread_stop () was called for this thread */
209 /* Whenever to disable breakpoints (used during invokes) */
210 gboolean disable_breakpoints;
213 * Number of times this thread has been resumed using resume_thread ().
215 guint32 resume_count;
217 MonoInternalThread *thread;
220 * Information about the frame which transitioned to native code for running
223 StackFrameInfo async_last_frame;
226 * The context where the stack walk can be started for running threads.
228 MonoThreadUnwindState async_state;
231 * The context used for filter clauses
233 MonoThreadUnwindState filter_state;
235 gboolean abort_requested;
238 * The current mono_runtime_invoke_checked invocation.
243 * The context where single stepping should resume while the thread is suspended because
244 * of an EXCEPTION event.
246 MonoThreadUnwindState catch_state;
249 * The context which needs to be restored after handling a single step/breakpoint
250 * event. This is the same as the ctx at step/breakpoint site, but includes changes
251 * to caller saved registers done by set_var ().
253 MonoThreadUnwindState restore_state;
254 /* Frames computed from restore_state */
255 int restore_frame_count;
256 StackFrame **restore_frames;
258 /* The currently unloading appdomain */
259 MonoDomain *domain_unloading;
264 void (*connect) (const char *address);
265 void (*close1) (void);
266 void (*close2) (void);
267 gboolean (*send) (void *buf, int len);
268 int (*recv) (void *buf, int len);
272 * Wire Protocol definitions
275 #define HEADER_LENGTH 11
277 #define MAJOR_VERSION 2
278 #define MINOR_VERSION 45
282 CMD_SET_OBJECT_REF = 9,
283 CMD_SET_STRING_REF = 10,
285 CMD_SET_ARRAY_REF = 13,
286 CMD_SET_EVENT_REQUEST = 15,
287 CMD_SET_STACK_FRAME = 16,
288 CMD_SET_APPDOMAIN = 20,
289 CMD_SET_ASSEMBLY = 21,
298 EVENT_KIND_VM_START = 0,
299 EVENT_KIND_VM_DEATH = 1,
300 EVENT_KIND_THREAD_START = 2,
301 EVENT_KIND_THREAD_DEATH = 3,
302 EVENT_KIND_APPDOMAIN_CREATE = 4,
303 EVENT_KIND_APPDOMAIN_UNLOAD = 5,
304 EVENT_KIND_METHOD_ENTRY = 6,
305 EVENT_KIND_METHOD_EXIT = 7,
306 EVENT_KIND_ASSEMBLY_LOAD = 8,
307 EVENT_KIND_ASSEMBLY_UNLOAD = 9,
308 EVENT_KIND_BREAKPOINT = 10,
309 EVENT_KIND_STEP = 11,
310 EVENT_KIND_TYPE_LOAD = 12,
311 EVENT_KIND_EXCEPTION = 13,
312 EVENT_KIND_KEEPALIVE = 14,
313 EVENT_KIND_USER_BREAK = 15,
314 EVENT_KIND_USER_LOG = 16
318 SUSPEND_POLICY_NONE = 0,
319 SUSPEND_POLICY_EVENT_THREAD = 1,
320 SUSPEND_POLICY_ALL = 2
325 ERR_INVALID_OBJECT = 20,
326 ERR_INVALID_FIELDID = 25,
327 ERR_INVALID_FRAMEID = 30,
328 ERR_NOT_IMPLEMENTED = 100,
329 ERR_NOT_SUSPENDED = 101,
330 ERR_INVALID_ARGUMENT = 102,
332 ERR_NO_INVOCATION = 104,
333 ERR_ABSENT_INFORMATION = 105,
334 ERR_NO_SEQ_POINT_AT_IL_OFFSET = 106,
335 ERR_INVOKE_ABORTED = 107,
336 ERR_LOADER_ERROR = 200, /*XXX extend the protocol to pass this information down the pipe */
341 MOD_KIND_THREAD_ONLY = 3,
342 MOD_KIND_LOCATION_ONLY = 7,
343 MOD_KIND_EXCEPTION_ONLY = 8,
345 MOD_KIND_ASSEMBLY_ONLY = 11,
346 MOD_KIND_SOURCE_FILE_ONLY = 12,
347 MOD_KIND_TYPE_NAME_ONLY = 13,
363 STEP_FILTER_NONE = 0,
364 STEP_FILTER_STATIC_CTOR = 1,
365 STEP_FILTER_DEBUGGER_HIDDEN = 2,
366 STEP_FILTER_DEBUGGER_STEP_THROUGH = 4,
367 STEP_FILTER_DEBUGGER_NON_USER_CODE = 8
371 TOKEN_TYPE_STRING = 0,
373 TOKEN_TYPE_FIELD = 2,
374 TOKEN_TYPE_METHOD = 3,
375 TOKEN_TYPE_UNKNOWN = 4
379 VALUE_TYPE_ID_NULL = 0xf0,
380 VALUE_TYPE_ID_TYPE = 0xf1,
381 VALUE_TYPE_ID_PARENT_VTYPE = 0xf2
385 FRAME_FLAG_DEBUGGER_INVOKE = 1,
386 FRAME_FLAG_NATIVE_TRANSITION = 2
390 INVOKE_FLAG_DISABLE_BREAKPOINTS = 1,
391 INVOKE_FLAG_SINGLE_THREADED = 2,
392 INVOKE_FLAG_RETURN_OUT_THIS = 4,
393 INVOKE_FLAG_RETURN_OUT_ARGS = 8,
394 INVOKE_FLAG_VIRTUAL = 16
398 BINDING_FLAGS_IGNORE_CASE = 0x70000000,
399 } BindingFlagsExtensions;
403 CMD_VM_ALL_THREADS = 2,
408 CMD_VM_INVOKE_METHOD = 7,
409 CMD_VM_SET_PROTOCOL_VERSION = 8,
410 CMD_VM_ABORT_INVOKE = 9,
411 CMD_VM_SET_KEEPALIVE = 10,
412 CMD_VM_GET_TYPES_FOR_SOURCE_FILE = 11,
413 CMD_VM_GET_TYPES = 12,
414 CMD_VM_INVOKE_METHODS = 13,
415 CMD_VM_START_BUFFERING = 14,
416 CMD_VM_STOP_BUFFERING = 15
420 CMD_THREAD_GET_FRAME_INFO = 1,
421 CMD_THREAD_GET_NAME = 2,
422 CMD_THREAD_GET_STATE = 3,
423 CMD_THREAD_GET_INFO = 4,
424 CMD_THREAD_GET_ID = 5,
425 CMD_THREAD_GET_TID = 6,
426 CMD_THREAD_SET_IP = 7
430 CMD_EVENT_REQUEST_SET = 1,
431 CMD_EVENT_REQUEST_CLEAR = 2,
432 CMD_EVENT_REQUEST_CLEAR_ALL_BREAKPOINTS = 3
440 CMD_APPDOMAIN_GET_ROOT_DOMAIN = 1,
441 CMD_APPDOMAIN_GET_FRIENDLY_NAME = 2,
442 CMD_APPDOMAIN_GET_ASSEMBLIES = 3,
443 CMD_APPDOMAIN_GET_ENTRY_ASSEMBLY = 4,
444 CMD_APPDOMAIN_CREATE_STRING = 5,
445 CMD_APPDOMAIN_GET_CORLIB = 6,
446 CMD_APPDOMAIN_CREATE_BOXED_VALUE = 7
450 CMD_ASSEMBLY_GET_LOCATION = 1,
451 CMD_ASSEMBLY_GET_ENTRY_POINT = 2,
452 CMD_ASSEMBLY_GET_MANIFEST_MODULE = 3,
453 CMD_ASSEMBLY_GET_OBJECT = 4,
454 CMD_ASSEMBLY_GET_TYPE = 5,
455 CMD_ASSEMBLY_GET_NAME = 6,
456 CMD_ASSEMBLY_GET_DOMAIN = 7
460 CMD_MODULE_GET_INFO = 1,
464 CMD_FIELD_GET_INFO = 1,
468 CMD_METHOD_GET_NAME = 1,
469 CMD_METHOD_GET_DECLARING_TYPE = 2,
470 CMD_METHOD_GET_DEBUG_INFO = 3,
471 CMD_METHOD_GET_PARAM_INFO = 4,
472 CMD_METHOD_GET_LOCALS_INFO = 5,
473 CMD_METHOD_GET_INFO = 6,
474 CMD_METHOD_GET_BODY = 7,
475 CMD_METHOD_RESOLVE_TOKEN = 8,
476 CMD_METHOD_GET_CATTRS = 9,
477 CMD_METHOD_MAKE_GENERIC_METHOD = 10
481 CMD_TYPE_GET_INFO = 1,
482 CMD_TYPE_GET_METHODS = 2,
483 CMD_TYPE_GET_FIELDS = 3,
484 CMD_TYPE_GET_VALUES = 4,
485 CMD_TYPE_GET_OBJECT = 5,
486 CMD_TYPE_GET_SOURCE_FILES = 6,
487 CMD_TYPE_SET_VALUES = 7,
488 CMD_TYPE_IS_ASSIGNABLE_FROM = 8,
489 CMD_TYPE_GET_PROPERTIES = 9,
490 CMD_TYPE_GET_CATTRS = 10,
491 CMD_TYPE_GET_FIELD_CATTRS = 11,
492 CMD_TYPE_GET_PROPERTY_CATTRS = 12,
493 CMD_TYPE_GET_SOURCE_FILES_2 = 13,
494 CMD_TYPE_GET_VALUES_2 = 14,
495 CMD_TYPE_GET_METHODS_BY_NAME_FLAGS = 15,
496 CMD_TYPE_GET_INTERFACES = 16,
497 CMD_TYPE_GET_INTERFACE_MAP = 17,
498 CMD_TYPE_IS_INITIALIZED = 18,
499 CMD_TYPE_CREATE_INSTANCE = 19
503 CMD_STACK_FRAME_GET_VALUES = 1,
504 CMD_STACK_FRAME_GET_THIS = 2,
505 CMD_STACK_FRAME_SET_VALUES = 3,
506 CMD_STACK_FRAME_GET_DOMAIN = 4,
507 CMD_STACK_FRAME_SET_THIS = 5,
511 CMD_ARRAY_REF_GET_LENGTH = 1,
512 CMD_ARRAY_REF_GET_VALUES = 2,
513 CMD_ARRAY_REF_SET_VALUES = 3,
517 CMD_STRING_REF_GET_VALUE = 1,
518 CMD_STRING_REF_GET_LENGTH = 2,
519 CMD_STRING_REF_GET_CHARS = 3
523 CMD_OBJECT_REF_GET_TYPE = 1,
524 CMD_OBJECT_REF_GET_VALUES = 2,
525 CMD_OBJECT_REF_IS_COLLECTED = 3,
526 CMD_OBJECT_REF_GET_ADDRESS = 4,
527 CMD_OBJECT_REF_GET_DOMAIN = 5,
528 CMD_OBJECT_REF_SET_VALUES = 6,
529 CMD_OBJECT_REF_GET_INFO = 7,
535 int count; /* For kind == MOD_KIND_COUNT */
536 MonoInternalThread *thread; /* For kind == MOD_KIND_THREAD_ONLY */
537 MonoClass *exc_class; /* For kind == MONO_KIND_EXCEPTION_ONLY */
538 MonoAssembly **assemblies; /* For kind == MONO_KIND_ASSEMBLY_ONLY */
539 GHashTable *source_files; /* For kind == MONO_KIND_SOURCE_FILE_ONLY */
540 GHashTable *type_names; /* For kind == MONO_KIND_TYPE_NAME_ONLY */
541 StepFilter filter; /* For kind == MOD_KIND_STEP */
543 gboolean caught, uncaught, subclasses; /* For kind == MOD_KIND_EXCEPTION_ONLY */
552 Modifier modifiers [MONO_ZERO_LEN_ARRAY];
556 * Describes a single step request.
560 MonoInternalThread *thread;
566 MonoMethod *start_method;
567 MonoMethod *last_method;
569 /* Whenever single stepping is performed using start/stop_single_stepping () */
571 /* The list of breakpoints used to implement step-over */
573 /* The number of frames at the start of a step-over */
575 /* If set, don't stop in methods that are not part of user assemblies */
576 MonoAssembly** user_assemblies;
577 /* Used to distinguish stepping breakpoint hits in parallel tasks executions */
579 /* Used to know if we are in process of async step-out and distishing from exception breakpoints */
580 MonoMethod* async_stepout_method;
584 * Contains additional information for an event
587 /* For EVENT_KIND_EXCEPTION */
589 MonoContext catch_ctx;
591 /* For EVENT_KIND_USER_LOG */
593 char *category, *message;
594 /* For EVENT_KIND_TYPE_LOAD */
599 guint8 *buf, *p, *end;
602 typedef struct ReplyPacket {
608 #define DEBUG(level,s) do { if (G_UNLIKELY ((level) <= log_level)) { s; fflush (log_file); } } while (0)
611 #define DEBUG_PRINTF(level, ...) do { if (G_UNLIKELY ((level) <= log_level)) { g_print (__VA_ARGS__); } } while (0)
613 #define DEBUG_PRINTF(level, ...) do { if (G_UNLIKELY ((level) <= log_level)) { fprintf (log_file, __VA_ARGS__); fflush (log_file); } } while (0)
617 #define get_last_sock_error() WSAGetLastError()
618 #define MONO_EWOULDBLOCK WSAEWOULDBLOCK
619 #define MONO_EINTR WSAEINTR
621 #define get_last_sock_error() errno
622 #define MONO_EWOULDBLOCK EWOULDBLOCK
623 #define MONO_EINTR EINTR
626 #define CHECK_PROTOCOL_VERSION(major,minor) \
627 (protocol_version_set && (major_version > (major) || (major_version == (major) && minor_version >= (minor))))
633 static AgentConfig agent_config;
636 * Whenever the agent is fully initialized.
637 * When using the onuncaught or onthrow options, only some parts of the agent are
638 * initialized on startup, and the full initialization which includes connection
639 * establishment and the startup of the agent thread is only done in response to
642 static gint32 inited;
644 #ifndef DISABLE_SOCKET_TRANSPORT
646 static int listen_fd;
649 static int packet_id = 0;
651 static int objref_id = 0;
653 static int event_request_id = 0;
655 static int frame_id = 0;
657 static GPtrArray *event_requests;
659 static MonoNativeTlsKey debugger_tls_id;
661 static gboolean vm_start_event_sent, vm_death_event_sent, disconnected;
663 /* Maps MonoInternalThread -> DebuggerTlsData */
664 /* Protected by the loader lock */
665 static MonoGHashTable *thread_to_tls;
667 /* Maps tid -> MonoInternalThread */
668 /* Protected by the loader lock */
669 static MonoGHashTable *tid_to_thread;
671 /* Maps tid -> MonoThread (not MonoInternalThread) */
672 /* Protected by the loader lock */
673 static MonoGHashTable *tid_to_thread_obj;
675 static MonoNativeThreadId debugger_thread_id;
677 static MonoThreadHandle *debugger_thread_handle;
679 static int log_level;
681 static gboolean embedding;
683 static FILE *log_file;
685 /* Assemblies whose assembly load event has no been sent yet */
686 /* Protected by the dbg lock */
687 static GPtrArray *pending_assembly_loads;
689 /* Whenever the debugger thread has exited */
690 static gboolean debugger_thread_exited;
692 /* Cond variable used to wait for debugger_thread_exited becoming true */
693 static MonoCoopCond debugger_thread_exited_cond;
695 /* Mutex for the cond var above */
696 static MonoCoopMutex debugger_thread_exited_mutex;
698 /* The single step request instance */
699 static SingleStepReq *ss_req;
701 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
702 /* Number of single stepping operations in progress */
706 /* The protocol version of the client */
707 static int major_version, minor_version;
709 /* Whenever the variables above are set by the client */
710 static gboolean protocol_version_set;
712 /* A hash table containing all active domains */
713 /* Protected by the loader lock */
714 static GHashTable *domains;
716 /* The number of times the runtime is suspended */
717 static gint32 suspend_count;
719 /* Whenever to buffer reply messages and send them together */
720 static gboolean buffer_replies;
722 /* Buffered reply packets */
723 static ReplyPacket reply_packets [128];
726 #define dbg_lock() mono_coop_mutex_lock (&debug_mutex)
727 #define dbg_unlock() mono_coop_mutex_unlock (&debug_mutex)
728 static MonoCoopMutex debug_mutex;
730 static void transport_init (void);
731 static void transport_connect (const char *address);
732 static gboolean transport_handshake (void);
733 static void register_transport (DebuggerTransport *trans);
735 static gsize WINAPI debugger_thread (void *arg);
737 static void runtime_initialized (MonoProfiler *prof);
739 static void runtime_shutdown (MonoProfiler *prof);
741 static void thread_startup (MonoProfiler *prof, uintptr_t tid);
743 static void thread_end (MonoProfiler *prof, uintptr_t tid);
745 static void appdomain_load (MonoProfiler *prof, MonoDomain *domain);
747 static void appdomain_start_unload (MonoProfiler *prof, MonoDomain *domain);
749 static void appdomain_unload (MonoProfiler *prof, MonoDomain *domain);
751 static void emit_appdomain_load (gpointer key, gpointer value, gpointer user_data);
753 static void emit_thread_start (gpointer key, gpointer value, gpointer user_data);
755 static void invalidate_each_thread (gpointer key, gpointer value, gpointer user_data);
757 static void assembly_load (MonoProfiler *prof, MonoAssembly *assembly);
759 static void assembly_unload (MonoProfiler *prof, MonoAssembly *assembly);
761 static void emit_assembly_load (gpointer assembly, gpointer user_data);
763 static void emit_type_load (gpointer key, gpointer type, gpointer user_data);
765 static void jit_done (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *jinfo);
767 static void jit_failed (MonoProfiler *prof, MonoMethod *method);
769 static void jit_end (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *jinfo);
771 static void add_pending_breakpoints (MonoMethod *method, MonoJitInfo *jinfo);
773 static void start_single_stepping (void);
775 static void stop_single_stepping (void);
777 static void suspend_current (void);
779 static void clear_event_requests_for_assembly (MonoAssembly *assembly);
781 static void clear_types_for_assembly (MonoAssembly *assembly);
783 static void clear_breakpoints_for_domain (MonoDomain *domain);
785 static void process_profiler_event (EventKind event, gpointer arg);
787 /* Submodule init/cleanup */
788 static void breakpoints_init (void);
789 static void breakpoints_cleanup (void);
791 static void objrefs_init (void);
792 static void objrefs_cleanup (void);
794 static void ids_init (void);
795 static void ids_cleanup (void);
797 static void suspend_init (void);
799 static void ss_start (SingleStepReq *ss_req, MonoMethod *method, SeqPoint *sp, MonoSeqPointInfo *info, MonoContext *ctx, DebuggerTlsData *tls, gboolean step_to_catch,
800 StackFrame **frames, int nframes);
801 static ErrorCode ss_create (MonoInternalThread *thread, StepSize size, StepDepth depth, StepFilter filter, EventRequest *req);
802 static void ss_destroy (SingleStepReq *req);
804 static void start_debugger_thread (void);
805 static void stop_debugger_thread (void);
807 static void finish_agent_init (gboolean on_startup);
809 static void process_profiler_event (EventKind event, gpointer arg);
811 static void invalidate_frames (DebuggerTlsData *tls);
813 #ifndef DISABLE_SOCKET_TRANSPORT
815 register_socket_transport (void);
818 static inline gboolean
819 is_debugger_thread (void)
821 MonoInternalThread *internal;
823 internal = mono_thread_internal_current ();
827 return internal->debugger_thread;
831 parse_address (char *address, char **host, int *port)
833 char *pos = strchr (address, ':');
835 if (pos == NULL || pos == address)
838 size_t len = pos - address;
839 *host = (char *)g_malloc (len + 1);
840 memcpy (*host, address, len);
841 (*host) [len] = '\0';
843 *port = atoi (pos + 1);
851 fprintf (stderr, "Usage: mono --debugger-agent=[<option>=<value>,...] ...\n");
852 fprintf (stderr, "Available options:\n");
853 fprintf (stderr, " transport=<transport>\t\tTransport to use for connecting to the debugger (mandatory, possible values: 'dt_socket')\n");
854 fprintf (stderr, " address=<hostname>:<port>\tAddress to connect to (mandatory)\n");
855 fprintf (stderr, " loglevel=<n>\t\t\tLog level (defaults to 0)\n");
856 fprintf (stderr, " logfile=<file>\t\tFile to log to (defaults to stdout)\n");
857 fprintf (stderr, " suspend=y/n\t\t\tWhether to suspend after startup.\n");
858 fprintf (stderr, " timeout=<n>\t\t\tTimeout for connecting in milliseconds.\n");
859 fprintf (stderr, " server=y/n\t\t\tWhether to listen for a client connection.\n");
860 fprintf (stderr, " keepalive=<n>\t\t\tSend keepalive events every n milliseconds.\n");
861 fprintf (stderr, " setpgid=y/n\t\t\tWhether to call setpid(0, 0) after startup.\n");
862 fprintf (stderr, " help\t\t\t\tPrint this help.\n");
866 parse_flag (const char *option, char *flag)
868 if (!strcmp (flag, "y"))
870 else if (!strcmp (flag, "n"))
873 fprintf (stderr, "debugger-agent: The valid values for the '%s' option are 'y' and 'n'.\n", option);
880 mono_debugger_agent_parse_options (char *options)
887 #ifndef MONO_ARCH_SOFT_DEBUG_SUPPORTED
888 fprintf (stderr, "--debugger-agent is not supported on this platform.\n");
892 extra = g_getenv ("MONO_SDB_ENV_OPTIONS");
894 options = g_strdup_printf ("%s,%s", options, extra);
898 agent_config.enabled = TRUE;
899 agent_config.suspend = TRUE;
900 agent_config.server = FALSE;
901 agent_config.defer = FALSE;
902 agent_config.address = NULL;
904 //agent_config.log_level = 10;
906 args = g_strsplit (options, ",", -1);
907 for (ptr = args; ptr && *ptr; ptr ++) {
910 if (strncmp (arg, "transport=", 10) == 0) {
911 agent_config.transport = g_strdup (arg + 10);
912 } else if (strncmp (arg, "address=", 8) == 0) {
913 agent_config.address = g_strdup (arg + 8);
914 } else if (strncmp (arg, "loglevel=", 9) == 0) {
915 agent_config.log_level = atoi (arg + 9);
916 } else if (strncmp (arg, "logfile=", 8) == 0) {
917 agent_config.log_file = g_strdup (arg + 8);
918 } else if (strncmp (arg, "suspend=", 8) == 0) {
919 agent_config.suspend = parse_flag ("suspend", arg + 8);
920 } else if (strncmp (arg, "server=", 7) == 0) {
921 agent_config.server = parse_flag ("server", arg + 7);
922 } else if (strncmp (arg, "onuncaught=", 11) == 0) {
923 agent_config.onuncaught = parse_flag ("onuncaught", arg + 11);
924 } else if (strncmp (arg, "onthrow=", 8) == 0) {
925 /* We support multiple onthrow= options */
926 agent_config.onthrow = g_slist_append (agent_config.onthrow, g_strdup (arg + 8));
927 } else if (strncmp (arg, "onthrow", 7) == 0) {
928 agent_config.onthrow = g_slist_append (agent_config.onthrow, g_strdup (""));
929 } else if (strncmp (arg, "help", 4) == 0) {
932 } else if (strncmp (arg, "timeout=", 8) == 0) {
933 agent_config.timeout = atoi (arg + 8);
934 } else if (strncmp (arg, "launch=", 7) == 0) {
935 agent_config.launch = g_strdup (arg + 7);
936 } else if (strncmp (arg, "embedding=", 10) == 0) {
937 agent_config.embedding = atoi (arg + 10) == 1;
938 } else if (strncmp (arg, "keepalive=", 10) == 0) {
939 agent_config.keepalive = atoi (arg + 10);
940 } else if (strncmp (arg, "setpgid=", 8) == 0) {
941 agent_config.setpgid = parse_flag ("setpgid", arg + 8);
948 if (agent_config.server && !agent_config.suspend) {
949 /* Waiting for deferred attachment */
950 agent_config.defer = TRUE;
951 if (agent_config.address == NULL) {
952 agent_config.address = g_strdup_printf ("0.0.0.0:%u", 56000 + (mono_process_current_pid () % 1000));
956 //agent_config.log_level = 0;
958 if (agent_config.transport == NULL) {
959 fprintf (stderr, "debugger-agent: The 'transport' option is mandatory.\n");
963 if (agent_config.address == NULL && !agent_config.server) {
964 fprintf (stderr, "debugger-agent: The 'address' option is mandatory.\n");
969 if (!strcmp (agent_config.transport, "dt_socket")) {
970 if (agent_config.address && parse_address (agent_config.address, &host, &port)) {
971 fprintf (stderr, "debugger-agent: The format of the 'address' options is '<host>:<port>'\n");
978 mono_debugger_agent_init (void)
980 mono_coop_mutex_init_recursive (&debug_mutex);
982 if (!agent_config.enabled)
987 /* Need to know whenever a thread has acquired the loader mutex */
988 mono_loader_lock_track_ownership (TRUE);
990 event_requests = g_ptr_array_new ();
992 mono_coop_mutex_init (&debugger_thread_exited_mutex);
993 mono_coop_cond_init (&debugger_thread_exited_cond);
995 MonoProfilerHandle prof = mono_profiler_create (NULL);
996 mono_profiler_set_runtime_shutdown_end_callback (prof, runtime_shutdown);
997 mono_profiler_set_runtime_initialized_callback (prof, runtime_initialized);
998 mono_profiler_set_domain_loaded_callback (prof, appdomain_load);
999 mono_profiler_set_domain_unloading_callback (prof, appdomain_start_unload);
1000 mono_profiler_set_domain_unloaded_callback (prof, appdomain_unload);
1001 mono_profiler_set_thread_started_callback (prof, thread_startup);
1002 mono_profiler_set_thread_stopped_callback (prof, thread_end);
1003 mono_profiler_set_assembly_loaded_callback (prof, assembly_load);
1004 mono_profiler_set_assembly_unloading_callback (prof, assembly_unload);
1005 mono_profiler_set_jit_done_callback (prof, jit_done);
1006 mono_profiler_set_jit_failed_callback (prof, jit_failed);
1008 mono_native_tls_alloc (&debugger_tls_id, NULL);
1010 /* Needed by the hash_table_new_type () call below */
1011 mono_gc_base_init ();
1013 thread_to_tls = mono_g_hash_table_new_type ((GHashFunc)mono_object_hash, NULL, MONO_HASH_KEY_GC, MONO_ROOT_SOURCE_DEBUGGER, "thread-to-tls table");
1015 tid_to_thread = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_VALUE_GC, MONO_ROOT_SOURCE_DEBUGGER, "tid-to-thread table");
1017 tid_to_thread_obj = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_VALUE_GC, MONO_ROOT_SOURCE_DEBUGGER, "tid-to-thread object table");
1019 pending_assembly_loads = g_ptr_array_new ();
1020 domains = g_hash_table_new (mono_aligned_addr_hash, NULL);
1022 log_level = agent_config.log_level;
1024 embedding = agent_config.embedding;
1025 disconnected = TRUE;
1027 if (agent_config.log_file) {
1028 log_file = fopen (agent_config.log_file, "w+");
1030 fprintf (stderr, "Unable to create log file '%s': %s.\n", agent_config.log_file, strerror (errno));
1039 breakpoints_init ();
1042 mini_get_debug_options ()->gen_sdb_seq_points = TRUE;
1044 * This is needed because currently we don't handle liveness info.
1046 mini_get_debug_options ()->mdb_optimizations = TRUE;
1048 #ifndef MONO_ARCH_HAVE_CONTEXT_SET_INT_REG
1049 /* This is needed because we can't set local variables in registers yet */
1050 mono_disable_optimizations (MONO_OPT_LINEARS);
1054 * The stack walk done from thread_interrupt () needs to be signal safe, but it
1055 * isn't, since it can call into mono_aot_find_jit_info () which is not signal
1056 * safe (#3411). So load AOT info eagerly when the debugger is running as a
1059 mini_get_debug_options ()->load_aot_jit_info_eagerly = TRUE;
1062 if (agent_config.setpgid)
1066 if (!agent_config.onuncaught && !agent_config.onthrow)
1067 finish_agent_init (TRUE);
1071 * finish_agent_init:
1073 * Finish the initialization of the agent. This involves connecting the transport
1074 * and starting the agent thread. This is either done at startup, or
1075 * in response to some event like an unhandled exception.
1078 finish_agent_init (gboolean on_startup)
1082 if (InterlockedCompareExchange (&inited, 1, 0) == 1)
1085 if (agent_config.launch) {
1088 // FIXME: Generated address
1089 // FIXME: Races with transport_connect ()
1091 argv [0] = agent_config.launch;
1092 argv [1] = agent_config.transport;
1093 argv [2] = agent_config.address;
1096 res = g_spawn_async_with_pipes (NULL, argv, NULL, (GSpawnFlags)0, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
1098 fprintf (stderr, "Failed to execute '%s'.\n", agent_config.launch);
1103 transport_connect (agent_config.address);
1106 /* Do some which is usually done after sending the VMStart () event */
1107 vm_start_event_sent = TRUE;
1108 start_debugger_thread ();
1113 mono_debugger_agent_cleanup (void)
1118 stop_debugger_thread ();
1120 breakpoints_cleanup ();
1129 #ifndef DISABLE_SOCKET_TRANSPORT
1134 * recv() + handle incomplete reads and EINTR
1137 socket_transport_recv (void *buf, int len)
1143 static gint64 last_keepalive;
1150 res = recv (fd, (char *) buf + total, len - total, flags);
1153 if (agent_config.keepalive) {
1154 gboolean need_keepalive = FALSE;
1155 if (res == -1 && get_last_sock_error () == MONO_EWOULDBLOCK) {
1156 need_keepalive = TRUE;
1157 } else if (res == -1) {
1158 /* This could happen if recv () is interrupted repeatedly */
1159 msecs = mono_msec_ticks ();
1160 if (msecs - last_keepalive >= agent_config.keepalive) {
1161 need_keepalive = TRUE;
1162 last_keepalive = msecs;
1165 if (need_keepalive) {
1166 process_profiler_event (EVENT_KIND_KEEPALIVE, NULL);
1170 } while ((res > 0 && total < len) || (res == -1 && get_last_sock_error () == MONO_EINTR));
1178 set_keepalive (void)
1183 if (!agent_config.keepalive || !conn_fd)
1186 tv.tv_sec = agent_config.keepalive / 1000;
1187 tv.tv_usec = (agent_config.keepalive % 1000) * 1000;
1189 result = setsockopt (conn_fd, SOL_SOCKET, SO_RCVTIMEO, (char *) &tv, sizeof(struct timeval));
1190 g_assert (result >= 0);
1194 socket_transport_accept (int socket_fd)
1197 conn_fd = accept (socket_fd, NULL, NULL);
1200 if (conn_fd == -1) {
1201 fprintf (stderr, "debugger-agent: Unable to listen on %d\n", socket_fd);
1203 DEBUG_PRINTF (1, "Accepted connection from client, connection fd=%d.\n", conn_fd);
1210 socket_transport_send (void *data, int len)
1217 res = send (conn_fd, data, len, 0);
1218 } while (res == -1 && get_last_sock_error () == MONO_EINTR);
1229 * socket_transport_connect:
1231 * Connect/Listen on HOST:PORT. If HOST is NULL, generate an address and listen on it.
1234 socket_transport_connect (const char *address)
1236 MonoAddressInfo *result;
1237 MonoAddressEntry *rp;
1238 int sfd = -1, s, res;
1242 if (agent_config.address) {
1243 res = parse_address (agent_config.address, &host, &port);
1244 g_assert (res == 0);
1255 mono_network_init ();
1257 /* Obtain address(es) matching host/port */
1258 s = mono_get_address_info (host, port, MONO_HINT_UNSPECIFIED, &result);
1260 fprintf (stderr, "debugger-agent: Unable to resolve %s:%d: %d\n", host, port, s); // FIXME add portable error conversion functions
1265 if (agent_config.server) {
1266 /* Wait for a connection */
1268 struct sockaddr_in addr;
1271 /* No address, generate one */
1272 sfd = socket (AF_INET, SOCK_STREAM, 0);
1275 /* This will bind the socket to a random port */
1276 res = listen (sfd, 16);
1278 fprintf (stderr, "debugger-agent: Unable to setup listening socket: %s\n", strerror (get_last_sock_error ()));
1283 addrlen = sizeof (addr);
1284 memset (&addr, 0, sizeof (addr));
1285 res = getsockname (sfd, (struct sockaddr*)&addr, &addrlen);
1286 g_assert (res == 0);
1288 host = (char*)"127.0.0.1";
1289 port = ntohs (addr.sin_port);
1291 /* Emit the address to stdout */
1292 /* FIXME: Should print another interface, not localhost */
1293 printf ("%s:%d\n", host, port);
1295 /* Listen on the provided address */
1296 for (rp = result->entries; rp != NULL; rp = rp->next) {
1297 MonoSocketAddress sockaddr;
1301 mono_socket_address_init (&sockaddr, &sock_len, rp->family, &rp->address, port);
1303 sfd = socket (rp->family, rp->socktype,
1308 if (setsockopt (sfd, SOL_SOCKET, SO_REUSEADDR, &n, sizeof(n)) == -1)
1311 res = bind (sfd, &sockaddr.addr, sock_len);
1315 res = listen (sfd, 16);
1322 mono_free_address_info (result);
1325 if (agent_config.defer)
1328 DEBUG_PRINTF (1, "Listening on %s:%d (timeout=%d ms)...\n", host, port, agent_config.timeout);
1330 if (agent_config.timeout) {
1335 tv.tv_usec = agent_config.timeout * 1000;
1337 FD_SET (sfd, &readfds);
1340 res = select (sfd + 1, &readfds, NULL, NULL, &tv);
1344 fprintf (stderr, "debugger-agent: Timed out waiting to connect.\n");
1349 conn_fd = socket_transport_accept (sfd);
1353 DEBUG_PRINTF (1, "Accepted connection from client, socket fd=%d.\n", conn_fd);
1355 /* Connect to the specified address */
1356 /* FIXME: Respect the timeout */
1357 for (rp = result->entries; rp != NULL; rp = rp->next) {
1358 MonoSocketAddress sockaddr;
1361 mono_socket_address_init (&sockaddr, &sock_len, rp->family, &rp->address, port);
1363 sfd = socket (rp->family, rp->socktype,
1369 res = connect (sfd, &sockaddr.addr, sock_len);
1373 break; /* Success */
1381 fprintf (stderr, "debugger-agent: Unable to connect to %s:%d\n", host, port);
1387 mono_free_address_info (result);
1390 if (!transport_handshake ())
1395 socket_transport_close1 (void)
1397 /* This will interrupt the agent thread */
1398 /* Close the read part only so it can still send back replies */
1399 /* Also shut down the connection listener so that we can exit normally */
1401 /* SD_RECEIVE doesn't break the recv in the debugger thread */
1402 shutdown (conn_fd, SD_BOTH);
1403 shutdown (listen_fd, SD_BOTH);
1404 closesocket (listen_fd);
1406 shutdown (conn_fd, SHUT_RD);
1407 shutdown (listen_fd, SHUT_RDWR);
1415 socket_transport_close2 (void)
1418 shutdown (conn_fd, SD_BOTH);
1420 shutdown (conn_fd, SHUT_RDWR);
1425 register_socket_transport (void)
1427 DebuggerTransport trans;
1429 trans.name = "dt_socket";
1430 trans.connect = socket_transport_connect;
1431 trans.close1 = socket_transport_close1;
1432 trans.close2 = socket_transport_close2;
1433 trans.send = socket_transport_send;
1434 trans.recv = socket_transport_recv;
1436 register_transport (&trans);
1440 * socket_fd_transport_connect:
1444 socket_fd_transport_connect (const char *address)
1448 res = sscanf (address, "%d", &conn_fd);
1450 fprintf (stderr, "debugger-agent: socket-fd transport address is invalid: '%s'\n", address);
1454 if (!transport_handshake ())
1459 register_socket_fd_transport (void)
1461 DebuggerTransport trans;
1463 /* This is the same as the 'dt_socket' transport, but receives an already connected socket fd */
1464 trans.name = "socket-fd";
1465 trans.connect = socket_fd_transport_connect;
1466 trans.close1 = socket_transport_close1;
1467 trans.close2 = socket_transport_close2;
1468 trans.send = socket_transport_send;
1469 trans.recv = socket_transport_recv;
1471 register_transport (&trans);
1474 #endif /* DISABLE_SOCKET_TRANSPORT */
1480 #define MAX_TRANSPORTS 16
1482 static DebuggerTransport *transport;
1484 static DebuggerTransport transports [MAX_TRANSPORTS];
1485 static int ntransports;
1488 mono_debugger_agent_register_transport (DebuggerTransport *trans);
1491 mono_debugger_agent_register_transport (DebuggerTransport *trans)
1493 register_transport (trans);
1497 register_transport (DebuggerTransport *trans)
1499 g_assert (ntransports < MAX_TRANSPORTS);
1501 memcpy (&transports [ntransports], trans, sizeof (DebuggerTransport));
1506 transport_init (void)
1510 #ifndef DISABLE_SOCKET_TRANSPORT
1511 register_socket_transport ();
1512 register_socket_fd_transport ();
1515 for (i = 0; i < ntransports; ++i) {
1516 if (!strcmp (agent_config.transport, transports [i].name))
1519 if (i == ntransports) {
1520 fprintf (stderr, "debugger-agent: The supported values for the 'transport' option are: ");
1521 for (i = 0; i < ntransports; ++i)
1522 fprintf (stderr, "%s'%s'", i > 0 ? ", " : "", transports [i].name);
1523 fprintf (stderr, "\n");
1526 transport = &transports [i];
1530 transport_connect (const char *address)
1532 transport->connect (address);
1536 transport_close1 (void)
1538 transport->close1 ();
1542 transport_close2 (void)
1544 transport->close2 ();
1548 transport_send (void *buf, int len)
1550 return transport->send (buf, len);
1554 transport_recv (void *buf, int len)
1556 return transport->recv (buf, len);
1560 mono_debugger_agent_transport_handshake (void)
1562 return transport_handshake ();
1566 transport_handshake (void)
1568 char handshake_msg [128];
1572 disconnected = TRUE;
1574 /* Write handshake message */
1575 sprintf (handshake_msg, "DWP-Handshake");
1578 res = transport_send (handshake_msg, strlen (handshake_msg));
1579 } while (res == -1 && get_last_sock_error () == MONO_EINTR);
1581 g_assert (res != -1);
1584 res = transport_recv (buf, strlen (handshake_msg));
1585 if ((res != strlen (handshake_msg)) || (memcmp (buf, handshake_msg, strlen (handshake_msg)) != 0)) {
1586 fprintf (stderr, "debugger-agent: DWP handshake failed.\n");
1591 * To support older clients, the client sends its protocol version after connecting
1592 * using a command. Until that is received, default to our protocol version.
1594 major_version = MAJOR_VERSION;
1595 minor_version = MINOR_VERSION;
1596 protocol_version_set = FALSE;
1598 #ifndef DISABLE_SOCKET_TRANSPORT
1599 // FIXME: Move this somewhere else
1601 * Set TCP_NODELAY on the socket so the client receives events/command
1602 * results immediately.
1606 int result = setsockopt (conn_fd,
1611 g_assert (result >= 0);
1617 disconnected = FALSE;
1622 stop_debugger_thread (void)
1627 transport_close1 ();
1630 * Wait for the thread to exit.
1632 * If we continue with the shutdown without waiting for it, then the client might
1633 * not receive an answer to its last command like a resume.
1635 if (!is_debugger_thread ()) {
1637 mono_coop_mutex_lock (&debugger_thread_exited_mutex);
1638 if (!debugger_thread_exited)
1639 mono_coop_cond_wait (&debugger_thread_exited_cond, &debugger_thread_exited_mutex);
1640 mono_coop_mutex_unlock (&debugger_thread_exited_mutex);
1641 } while (!debugger_thread_exited);
1644 transport_close2 ();
1648 start_debugger_thread (void)
1651 MonoInternalThread *thread;
1653 thread = mono_thread_create_internal (mono_get_root_domain (), debugger_thread, NULL, MONO_THREAD_CREATE_FLAGS_DEBUGGER, &error);
1654 mono_error_assert_ok (&error);
1656 debugger_thread_handle = mono_threads_open_thread_handle (thread->handle);
1657 g_assert (debugger_thread_handle);
1661 * Functions to decode protocol data
1665 decode_byte (guint8 *buf, guint8 **endbuf, guint8 *limit)
1668 g_assert (*endbuf <= limit);
1673 decode_int (guint8 *buf, guint8 **endbuf, guint8 *limit)
1676 g_assert (*endbuf <= limit);
1678 return (((int)buf [0]) << 24) | (((int)buf [1]) << 16) | (((int)buf [2]) << 8) | (((int)buf [3]) << 0);
1681 static inline gint64
1682 decode_long (guint8 *buf, guint8 **endbuf, guint8 *limit)
1684 guint32 high = decode_int (buf, &buf, limit);
1685 guint32 low = decode_int (buf, &buf, limit);
1689 return ((((guint64)high) << 32) | ((guint64)low));
1693 decode_id (guint8 *buf, guint8 **endbuf, guint8 *limit)
1695 return decode_int (buf, endbuf, limit);
1699 decode_string (guint8 *buf, guint8 **endbuf, guint8 *limit)
1701 int len = decode_int (buf, &buf, limit);
1709 s = (char *)g_malloc (len + 1);
1712 memcpy (s, buf, len);
1721 * Functions to encode protocol data
1725 buffer_init (Buffer *buf, int size)
1727 buf->buf = (guint8 *)g_malloc (size);
1729 buf->end = buf->buf + size;
1733 buffer_len (Buffer *buf)
1735 return buf->p - buf->buf;
1739 buffer_make_room (Buffer *buf, int size)
1741 if (buf->end - buf->p < size) {
1742 int new_size = buf->end - buf->buf + size + 32;
1743 guint8 *p = (guint8 *)g_realloc (buf->buf, new_size);
1744 size = buf->p - buf->buf;
1747 buf->end = buf->buf + new_size;
1752 buffer_add_byte (Buffer *buf, guint8 val)
1754 buffer_make_room (buf, 1);
1760 buffer_add_short (Buffer *buf, guint32 val)
1762 buffer_make_room (buf, 2);
1763 buf->p [0] = (val >> 8) & 0xff;
1764 buf->p [1] = (val >> 0) & 0xff;
1769 buffer_add_int (Buffer *buf, guint32 val)
1771 buffer_make_room (buf, 4);
1772 buf->p [0] = (val >> 24) & 0xff;
1773 buf->p [1] = (val >> 16) & 0xff;
1774 buf->p [2] = (val >> 8) & 0xff;
1775 buf->p [3] = (val >> 0) & 0xff;
1780 buffer_add_long (Buffer *buf, guint64 l)
1782 buffer_add_int (buf, (l >> 32) & 0xffffffff);
1783 buffer_add_int (buf, (l >> 0) & 0xffffffff);
1787 buffer_add_id (Buffer *buf, int id)
1789 buffer_add_int (buf, (guint64)id);
1793 buffer_add_data (Buffer *buf, guint8 *data, int len)
1795 buffer_make_room (buf, len);
1796 memcpy (buf->p, data, len);
1801 buffer_add_string (Buffer *buf, const char *str)
1806 buffer_add_int (buf, 0);
1809 buffer_add_int (buf, len);
1810 buffer_add_data (buf, (guint8*)str, len);
1815 buffer_add_buffer (Buffer *buf, Buffer *data)
1817 buffer_add_data (buf, data->buf, buffer_len (data));
1821 buffer_free (Buffer *buf)
1827 send_packet (int command_set, int command, Buffer *data)
1833 id = InterlockedIncrement (&packet_id);
1835 len = data->p - data->buf + 11;
1836 buffer_init (&buf, len);
1837 buffer_add_int (&buf, len);
1838 buffer_add_int (&buf, id);
1839 buffer_add_byte (&buf, 0); /* flags */
1840 buffer_add_byte (&buf, command_set);
1841 buffer_add_byte (&buf, command);
1842 memcpy (buf.buf + 11, data->buf, data->p - data->buf);
1844 res = transport_send (buf.buf, len);
1852 send_reply_packets (int npackets, ReplyPacket *packets)
1859 for (i = 0; i < npackets; ++i)
1860 len += buffer_len (packets [i].data) + 11;
1861 buffer_init (&buf, len);
1862 for (i = 0; i < npackets; ++i) {
1863 buffer_add_int (&buf, buffer_len (packets [i].data) + 11);
1864 buffer_add_int (&buf, packets [i].id);
1865 buffer_add_byte (&buf, 0x80); /* flags */
1866 buffer_add_byte (&buf, (packets [i].error >> 8) & 0xff);
1867 buffer_add_byte (&buf, packets [i].error);
1868 buffer_add_buffer (&buf, packets [i].data);
1871 res = transport_send (buf.buf, len);
1879 send_reply_packet (int id, int error, Buffer *data)
1883 memset (&packet, 0, sizeof (ReplyPacket));
1885 packet.error = error;
1888 return send_reply_packets (1, &packet);
1892 send_buffered_reply_packets (void)
1896 send_reply_packets (nreply_packets, reply_packets);
1897 for (i = 0; i < nreply_packets; ++i)
1898 buffer_free (reply_packets [i].data);
1899 DEBUG_PRINTF (1, "[dbg] Sent %d buffered reply packets [at=%lx].\n", nreply_packets, (long)mono_100ns_ticks () / 10000);
1904 buffer_reply_packet (int id, int error, Buffer *data)
1908 if (nreply_packets == 128)
1909 send_buffered_reply_packets ();
1911 p = &reply_packets [nreply_packets];
1914 p->data = g_new0 (Buffer, 1);
1915 buffer_init (p->data, buffer_len (data));
1916 buffer_add_buffer (p->data, data);
1925 * Represents an object accessible by the debugger client.
1928 /* Unique id used in the wire protocol to refer to objects */
1931 * A weakref gc handle pointing to the object. The gc handle is used to
1932 * detect if the object was garbage collected.
1937 /* Maps objid -> ObjRef */
1938 /* Protected by the loader lock */
1939 static GHashTable *objrefs;
1940 /* Protected by the loader lock */
1941 static GHashTable *obj_to_objref;
1942 /* Protected by the dbg lock */
1943 static MonoGHashTable *suspended_objs;
1946 free_objref (gpointer value)
1948 ObjRef *o = (ObjRef *)value;
1950 mono_gchandle_free (o->handle);
1958 objrefs = g_hash_table_new_full (NULL, NULL, NULL, free_objref);
1959 obj_to_objref = g_hash_table_new (NULL, NULL);
1960 suspended_objs = mono_g_hash_table_new_type ((GHashFunc)mono_object_hash, NULL, MONO_HASH_KEY_GC, MONO_ROOT_SOURCE_DEBUGGER, "suspended objects table");
1964 objrefs_cleanup (void)
1966 g_hash_table_destroy (objrefs);
1971 * Return an ObjRef for OBJ.
1974 get_objref (MonoObject *obj)
1977 GSList *reflist = NULL, *l;
1983 if (suspend_count) {
1985 * Have to keep object refs created during suspensions alive for the duration of the suspension, so GCs during invokes don't collect them.
1988 mono_g_hash_table_insert (suspended_objs, obj, NULL);
1992 mono_loader_lock ();
1994 /* FIXME: The tables can grow indefinitely */
1996 if (mono_gc_is_moving ()) {
1998 * Objects can move, so use a hash table mapping hash codes to lists of
1999 * ObjRef structures.
2001 hash = mono_object_hash (obj);
2003 reflist = (GSList *)g_hash_table_lookup (obj_to_objref, GINT_TO_POINTER (hash));
2004 for (l = reflist; l; l = l->next) {
2005 ref = (ObjRef *)l->data;
2006 if (ref && mono_gchandle_get_target (ref->handle) == obj) {
2007 mono_loader_unlock ();
2012 /* Use a hash table with masked pointers to internalize object references */
2013 ref = (ObjRef *)g_hash_table_lookup (obj_to_objref, GINT_TO_POINTER (~((gsize)obj)));
2014 /* ref might refer to a different object with the same addr which was GCd */
2015 if (ref && mono_gchandle_get_target (ref->handle) == obj) {
2016 mono_loader_unlock ();
2021 ref = g_new0 (ObjRef, 1);
2022 ref->id = InterlockedIncrement (&objref_id);
2023 ref->handle = mono_gchandle_new_weakref (obj, FALSE);
2025 g_hash_table_insert (objrefs, GINT_TO_POINTER (ref->id), ref);
2027 if (mono_gc_is_moving ()) {
2028 reflist = g_slist_append (reflist, ref);
2029 g_hash_table_insert (obj_to_objref, GINT_TO_POINTER (hash), reflist);
2031 g_hash_table_insert (obj_to_objref, GINT_TO_POINTER (~((gsize)obj)), ref);
2034 mono_loader_unlock ();
2040 true_pred (gpointer key, gpointer value, gpointer user_data)
2046 clear_suspended_objs (void)
2049 mono_g_hash_table_foreach_remove (suspended_objs, true_pred, NULL);
2054 get_objid (MonoObject *obj)
2059 return get_objref (obj)->id;
2063 * Set OBJ to the object identified by OBJID.
2064 * Returns 0 or an error code if OBJID is invalid or the object has been garbage
2068 get_object_allow_null (int objid, MonoObject **obj)
2078 return ERR_INVALID_OBJECT;
2080 mono_loader_lock ();
2082 ref = (ObjRef *)g_hash_table_lookup (objrefs, GINT_TO_POINTER (objid));
2085 *obj = mono_gchandle_get_target (ref->handle);
2086 mono_loader_unlock ();
2088 return ERR_INVALID_OBJECT;
2091 mono_loader_unlock ();
2092 return ERR_INVALID_OBJECT;
2097 get_object (int objid, MonoObject **obj)
2099 ErrorCode err = get_object_allow_null (objid, obj);
2101 if (err != ERR_NONE)
2104 return ERR_INVALID_OBJECT;
2109 decode_objid (guint8 *buf, guint8 **endbuf, guint8 *limit)
2111 return decode_id (buf, endbuf, limit);
2115 buffer_add_objid (Buffer *buf, MonoObject *o)
2117 buffer_add_id (buf, get_objid (o));
2136 * Represents a runtime structure accessible to the debugger client
2139 /* Unique id used in the wire protocol */
2141 /* Domain of the runtime structure, NULL if the domain was unloaded */
2148 MonoAssembly *assembly;
2149 MonoClassField *field;
2151 MonoProperty *property;
2156 /* Maps runtime structure -> Id */
2157 /* Protected by the dbg lock */
2158 GHashTable *val_to_id [ID_NUM];
2159 /* Classes whose class load event has been sent */
2160 /* Protected by the loader lock */
2161 GHashTable *loaded_classes;
2162 /* Maps MonoClass->GPtrArray of file names */
2163 GHashTable *source_files;
2164 /* Maps source file basename -> GSList of classes */
2165 GHashTable *source_file_to_class;
2166 /* Same with ignore-case */
2167 GHashTable *source_file_to_class_ignorecase;
2171 /* Protected by the dbg lock */
2172 static GPtrArray *ids [ID_NUM];
2179 for (i = 0; i < ID_NUM; ++i)
2180 ids [i] = g_ptr_array_new ();
2188 for (i = 0; i < ID_NUM; ++i) {
2190 for (j = 0; j < ids [i]->len; ++j)
2191 g_free (g_ptr_array_index (ids [i], j));
2192 g_ptr_array_free (ids [i], TRUE);
2199 mono_debugger_agent_free_domain_info (MonoDomain *domain)
2201 AgentDomainInfo *info = (AgentDomainInfo *)domain_jit_info (domain)->agent_info;
2203 GHashTableIter iter;
2204 GPtrArray *file_names;
2209 for (i = 0; i < ID_NUM; ++i)
2210 if (info->val_to_id [i])
2211 g_hash_table_destroy (info->val_to_id [i]);
2212 g_hash_table_destroy (info->loaded_classes);
2214 g_hash_table_iter_init (&iter, info->source_files);
2215 while (g_hash_table_iter_next (&iter, NULL, (void**)&file_names)) {
2216 for (i = 0; i < file_names->len; ++i)
2217 g_free (g_ptr_array_index (file_names, i));
2218 g_ptr_array_free (file_names, TRUE);
2221 g_hash_table_iter_init (&iter, info->source_file_to_class);
2222 while (g_hash_table_iter_next (&iter, (void**)&basename, (void**)&l)) {
2227 g_hash_table_iter_init (&iter, info->source_file_to_class_ignorecase);
2228 while (g_hash_table_iter_next (&iter, (void**)&basename, (void**)&l)) {
2236 domain_jit_info (domain)->agent_info = NULL;
2238 /* Clear ids referencing structures in the domain */
2240 for (i = 0; i < ID_NUM; ++i) {
2242 for (j = 0; j < ids [i]->len; ++j) {
2243 Id *id = (Id *)g_ptr_array_index (ids [i], j);
2244 if (id->domain == domain)
2251 mono_loader_lock ();
2252 g_hash_table_remove (domains, domain);
2253 mono_loader_unlock ();
2256 static AgentDomainInfo*
2257 get_agent_domain_info (MonoDomain *domain)
2259 AgentDomainInfo *info = NULL;
2261 mono_domain_lock (domain);
2263 info = (AgentDomainInfo *)domain_jit_info (domain)->agent_info;
2265 info = g_new0 (AgentDomainInfo, 1);
2266 domain_jit_info (domain)->agent_info = info;
2267 info->loaded_classes = g_hash_table_new (mono_aligned_addr_hash, NULL);
2268 info->source_files = g_hash_table_new (mono_aligned_addr_hash, NULL);
2269 info->source_file_to_class = g_hash_table_new (g_str_hash, g_str_equal);
2270 info->source_file_to_class_ignorecase = g_hash_table_new (g_str_hash, g_str_equal);
2273 mono_domain_unlock (domain);
2279 get_id (MonoDomain *domain, IdType type, gpointer val)
2282 AgentDomainInfo *info;
2287 info = get_agent_domain_info (domain);
2291 if (info->val_to_id [type] == NULL)
2292 info->val_to_id [type] = g_hash_table_new (mono_aligned_addr_hash, NULL);
2294 id = (Id *)g_hash_table_lookup (info->val_to_id [type], val);
2300 id = g_new0 (Id, 1);
2302 id->id = ids [type]->len + 1;
2303 id->domain = domain;
2306 g_hash_table_insert (info->val_to_id [type], val, id);
2307 g_ptr_array_add (ids [type], id);
2314 static inline gpointer
2315 decode_ptr_id (guint8 *buf, guint8 **endbuf, guint8 *limit, IdType type, MonoDomain **domain, ErrorCode *err)
2319 int id = decode_id (buf, endbuf, limit);
2328 // FIXME: error handling
2330 g_assert (id > 0 && id <= ids [type]->len);
2332 res = (Id *)g_ptr_array_index (ids [type], GPOINTER_TO_INT (id - 1));
2335 if (res->domain == NULL || res->domain->state == MONO_APPDOMAIN_UNLOADED) {
2336 DEBUG_PRINTF (1, "ERR_UNLOADED, id=%d, type=%d.\n", id, type);
2337 *err = ERR_UNLOADED;
2342 *domain = res->domain;
2344 return res->data.val;
2348 buffer_add_ptr_id (Buffer *buf, MonoDomain *domain, IdType type, gpointer val)
2350 int id = get_id (domain, type, val);
2352 buffer_add_id (buf, id);
2356 static inline MonoClass*
2357 decode_typeid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2361 klass = (MonoClass *)decode_ptr_id (buf, endbuf, limit, ID_TYPE, domain, err);
2362 if (G_UNLIKELY (log_level >= 2) && klass) {
2365 s = mono_type_full_name (&klass->byval_arg);
2366 DEBUG_PRINTF (2, "[dbg] recv class [%s]\n", s);
2372 static inline MonoAssembly*
2373 decode_assemblyid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2375 return (MonoAssembly *)decode_ptr_id (buf, endbuf, limit, ID_ASSEMBLY, domain, err);
2378 static inline MonoImage*
2379 decode_moduleid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2381 return (MonoImage *)decode_ptr_id (buf, endbuf, limit, ID_MODULE, domain, err);
2384 static inline MonoMethod*
2385 decode_methodid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2389 m = (MonoMethod *)decode_ptr_id (buf, endbuf, limit, ID_METHOD, domain, err);
2390 if (G_UNLIKELY (log_level >= 2) && m) {
2393 s = mono_method_full_name (m, TRUE);
2394 DEBUG_PRINTF (2, "[dbg] recv method [%s]\n", s);
2400 static inline MonoClassField*
2401 decode_fieldid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2403 return (MonoClassField *)decode_ptr_id (buf, endbuf, limit, ID_FIELD, domain, err);
2406 static inline MonoDomain*
2407 decode_domainid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2409 return (MonoDomain *)decode_ptr_id (buf, endbuf, limit, ID_DOMAIN, domain, err);
2412 static inline MonoProperty*
2413 decode_propertyid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2415 return (MonoProperty *)decode_ptr_id (buf, endbuf, limit, ID_PROPERTY, domain, err);
2419 buffer_add_typeid (Buffer *buf, MonoDomain *domain, MonoClass *klass)
2421 buffer_add_ptr_id (buf, domain, ID_TYPE, klass);
2422 if (G_UNLIKELY (log_level >= 2) && klass) {
2425 s = mono_type_full_name (&klass->byval_arg);
2426 if (is_debugger_thread ())
2427 DEBUG_PRINTF (2, "[dbg] send class [%s]\n", s);
2429 DEBUG_PRINTF (2, "[%p] send class [%s]\n", (gpointer) (gsize) mono_native_thread_id_get (), s);
2435 buffer_add_methodid (Buffer *buf, MonoDomain *domain, MonoMethod *method)
2437 buffer_add_ptr_id (buf, domain, ID_METHOD, method);
2438 if (G_UNLIKELY (log_level >= 2) && method) {
2441 s = mono_method_full_name (method, 1);
2442 DEBUG_PRINTF (2, "[dbg] send method [%s]\n", s);
2448 buffer_add_assemblyid (Buffer *buf, MonoDomain *domain, MonoAssembly *assembly)
2452 id = buffer_add_ptr_id (buf, domain, ID_ASSEMBLY, assembly);
2453 if (G_UNLIKELY (log_level >= 2) && assembly)
2454 DEBUG_PRINTF (2, "[dbg] send assembly [%s][%s][%d]\n", assembly->aname.name, domain->friendly_name, id);
2458 buffer_add_moduleid (Buffer *buf, MonoDomain *domain, MonoImage *image)
2460 buffer_add_ptr_id (buf, domain, ID_MODULE, image);
2464 buffer_add_fieldid (Buffer *buf, MonoDomain *domain, MonoClassField *field)
2466 buffer_add_ptr_id (buf, domain, ID_FIELD, field);
2470 buffer_add_propertyid (Buffer *buf, MonoDomain *domain, MonoProperty *property)
2472 buffer_add_ptr_id (buf, domain, ID_PROPERTY, property);
2476 buffer_add_domainid (Buffer *buf, MonoDomain *domain)
2478 buffer_add_ptr_id (buf, domain, ID_DOMAIN, domain);
2481 static void invoke_method (void);
2488 get_top_method_ji (gpointer ip, MonoDomain **domain, gpointer *out_ip)
2495 ji = mini_jit_info_table_find (mono_domain_get (), (char*)ip, domain);
2497 /* Could be an interpreter method */
2499 MonoLMF *lmf = mono_get_lmf ();
2500 MonoInterpFrameHandle *frame;
2502 g_assert (((guint64)lmf->previous_lmf) & 2);
2503 MonoLMFExt *ext = (MonoLMFExt*)lmf;
2505 g_assert (ext->interp_exit);
2506 frame = ext->interp_exit_data;
2507 ji = mono_interp_frame_get_jit_info (frame);
2509 *domain = mono_domain_get ();
2511 *out_ip = mono_interp_frame_get_ip (frame);
2517 * save_thread_context:
2519 * Set CTX as the current threads context which is used for computing stack traces.
2520 * This function is signal-safe.
2523 save_thread_context (MonoContext *ctx)
2525 DebuggerTlsData *tls;
2527 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
2531 mono_thread_state_init_from_monoctx (&tls->context, ctx);
2533 mono_thread_state_init_from_current (&tls->context);
2536 /* Number of threads suspended */
2538 * If this is equal to the size of thread_to_tls, the runtime is considered
2541 static gint32 threads_suspend_count;
2543 static MonoCoopMutex suspend_mutex;
2545 /* Cond variable used to wait for suspend_count becoming 0 */
2546 static MonoCoopCond suspend_cond;
2548 /* Semaphore used to wait for a thread becoming suspended */
2549 static MonoCoopSem suspend_sem;
2554 mono_coop_mutex_init (&suspend_mutex);
2555 mono_coop_cond_init (&suspend_cond);
2556 mono_coop_sem_init (&suspend_sem, 0);
2561 StackFrameInfo last_frame;
2562 gboolean last_frame_set;
2566 } GetLastFrameUserData;
2569 get_last_frame (StackFrameInfo *info, MonoContext *ctx, gpointer user_data)
2571 GetLastFrameUserData *data = (GetLastFrameUserData *)user_data;
2573 if (info->type == FRAME_TYPE_MANAGED_TO_NATIVE || info->type == FRAME_TYPE_TRAMPOLINE)
2576 if (!data->last_frame_set) {
2577 /* Store the last frame */
2578 memcpy (&data->last_frame, info, sizeof (StackFrameInfo));
2579 data->last_frame_set = TRUE;
2582 /* Store the context/lmf for the frame above the last frame */
2583 memcpy (&data->ctx, ctx, sizeof (MonoContext));
2584 data->lmf = info->lmf;
2585 data->domain = info->domain;
2591 copy_unwind_state_from_frame_data (MonoThreadUnwindState *to, GetLastFrameUserData *data, gpointer jit_tls)
2593 memcpy (&to->ctx, &data->ctx, sizeof (MonoContext));
2595 to->unwind_data [MONO_UNWIND_DATA_DOMAIN] = data->domain;
2596 to->unwind_data [MONO_UNWIND_DATA_LMF] = data->lmf;
2597 to->unwind_data [MONO_UNWIND_DATA_JIT_TLS] = jit_tls;
2604 * Process interruption of a thread. This should be signal safe.
2606 * This always runs in the debugger thread.
2609 thread_interrupt (DebuggerTlsData *tls, MonoThreadInfo *info, MonoJitInfo *ji)
2612 MonoNativeThreadId tid;
2616 ip = MONO_CONTEXT_GET_IP (&mono_thread_info_get_suspend_state (info)->ctx);
2617 tid = mono_thread_info_get_tid (info);
2619 // FIXME: Races when the thread leaves managed code before hitting a single step
2622 if (ji && !ji->is_trampoline) {
2623 /* Running managed code, will be suspended by the single step code */
2624 DEBUG_PRINTF (1, "[%p] Received interrupt while at %s(%p), continuing.\n", (gpointer)(gsize)tid, jinfo_get_method (ji)->name, ip);
2627 * Running native code, will be suspended when it returns to/enters
2628 * managed code. Treat it as already suspended.
2629 * This might interrupt the code in process_single_step_inner (), we use the
2630 * tls->suspending flag to avoid races when that happens.
2632 if (!tls->suspended && !tls->suspending) {
2633 GetLastFrameUserData data;
2635 // FIXME: printf is not signal safe, but this is only used during
2636 // debugger debugging
2638 DEBUG_PRINTF (1, "[%p] Received interrupt while at %p, treating as suspended.\n", (gpointer)(gsize)tid, ip);
2639 //save_thread_context (&ctx);
2642 /* Already terminated */
2646 * We are in a difficult position: we want to be able to provide stack
2647 * traces for this thread, but we can't use the current ctx+lmf, since
2648 * the thread is still running, so it might return to managed code,
2649 * making these invalid.
2650 * So we start a stack walk and save the first frame, along with the
2651 * parent frame's ctx+lmf. This (hopefully) works because the thread will be
2652 * suspended when it returns to managed code, so the parent's ctx should
2655 MonoThreadUnwindState *state = mono_thread_info_get_suspend_state (info);
2657 data.last_frame_set = FALSE;
2658 mono_get_eh_callbacks ()->mono_walk_stack_with_state (get_last_frame, state, MONO_UNWIND_SIGNAL_SAFE, &data);
2659 if (data.last_frame_set) {
2660 gpointer jit_tls = ((MonoThreadInfo*)tls->thread->thread_info)->jit_data;
2662 memcpy (&tls->async_last_frame, &data.last_frame, sizeof (StackFrameInfo));
2664 if (data.last_frame.type == FRAME_TYPE_INTERP_TO_MANAGED) {
2666 * Store the current lmf instead of the parent one, since that
2667 * contains the interp exit data.
2669 data.lmf = state->unwind_data [MONO_UNWIND_DATA_LMF];
2672 copy_unwind_state_from_frame_data (&tls->async_state, &data, jit_tls);
2673 copy_unwind_state_from_frame_data (&tls->context, &data, jit_tls);
2675 tls->async_state.valid = FALSE;
2678 mono_memory_barrier ();
2680 tls->suspended = TRUE;
2681 mono_coop_sem_post (&suspend_sem);
2687 * reset_native_thread_suspend_state:
2689 * Reset the suspended flag and state on native threads
2692 reset_native_thread_suspend_state (gpointer key, gpointer value, gpointer user_data)
2694 DebuggerTlsData *tls = (DebuggerTlsData *)value;
2696 if (!tls->really_suspended && tls->suspended) {
2697 tls->suspended = FALSE;
2699 * The thread might still be running if it was executing native code, so the state won't be invalided by
2700 * suspend_current ().
2702 tls->context.valid = FALSE;
2703 tls->async_state.valid = FALSE;
2704 invalidate_frames (tls);
2709 DebuggerTlsData *tls;
2710 gboolean valid_info;
2713 static SuspendThreadResult
2714 debugger_interrupt_critical (MonoThreadInfo *info, gpointer user_data)
2716 InterruptData *data = (InterruptData *)user_data;
2719 data->valid_info = TRUE;
2720 ji = mono_jit_info_table_find_internal (
2721 (MonoDomain *)mono_thread_info_get_suspend_state (info)->unwind_data [MONO_UNWIND_DATA_DOMAIN],
2722 (char *)MONO_CONTEXT_GET_IP (&mono_thread_info_get_suspend_state (info)->ctx),
2726 /* This is signal safe */
2727 thread_interrupt (data->tls, info, ji);
2728 return MonoResumeThread;
2734 * Notify a thread that it needs to suspend.
2737 notify_thread (gpointer key, gpointer value, gpointer user_data)
2739 MonoInternalThread *thread = (MonoInternalThread *)key;
2740 DebuggerTlsData *tls = (DebuggerTlsData *)value;
2741 MonoNativeThreadId tid = MONO_UINT_TO_NATIVE_THREAD_ID (thread->tid);
2743 if (mono_thread_internal_is_current (thread) || tls->terminated)
2746 DEBUG_PRINTF (1, "[%p] Interrupting %p...\n", (gpointer) (gsize) mono_native_thread_id_get (), (gpointer)tid);
2748 /* This is _not_ equivalent to mono_thread_internal_abort () */
2749 InterruptData interrupt_data = { 0 };
2750 interrupt_data.tls = tls;
2752 mono_thread_info_safe_suspend_and_run ((MonoNativeThreadId)(gpointer)(gsize)thread->tid, FALSE, debugger_interrupt_critical, &interrupt_data);
2753 if (!interrupt_data.valid_info) {
2754 DEBUG_PRINTF (1, "[%p] mono_thread_info_suspend_sync () failed for %p...\n", (gpointer) (gsize) mono_native_thread_id_get (), (gpointer)tid);
2756 * Attached thread which died without detaching.
2758 tls->terminated = TRUE;
2763 process_suspend (DebuggerTlsData *tls, MonoContext *ctx)
2765 guint8 *ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
2769 if (mono_loader_lock_is_owned_by_self ()) {
2771 * Shortcut for the check in suspend_current (). This speeds up processing
2772 * when executing long running code inside the loader lock, i.e. assembly load
2778 if (is_debugger_thread ())
2781 /* Prevent races with mono_debugger_agent_thread_interrupt () */
2782 if (suspend_count - tls->resume_count > 0)
2783 tls->suspending = TRUE;
2785 DEBUG_PRINTF (1, "[%p] Received single step event for suspending.\n", (gpointer) (gsize) mono_native_thread_id_get ());
2787 if (suspend_count - tls->resume_count == 0) {
2789 * We are executing a single threaded invoke but the single step for
2790 * suspending is still active.
2791 * FIXME: This slows down single threaded invokes.
2793 DEBUG_PRINTF (1, "[%p] Ignored during single threaded invoke.\n", (gpointer) (gsize) mono_native_thread_id_get ());
2797 ji = get_top_method_ji (ip, NULL, NULL);
2799 /* Can't suspend in these methods */
2800 method = jinfo_get_method (ji);
2801 if (method->klass == mono_defaults.string_class && (!strcmp (method->name, "memset") || strstr (method->name, "memcpy")))
2804 save_thread_context (ctx);
2812 * Increase the suspend count of the VM. While the suspend count is greater
2813 * than 0, runtime threads are suspended at certain points during execution.
2818 mono_loader_lock ();
2820 mono_coop_mutex_lock (&suspend_mutex);
2824 DEBUG_PRINTF (1, "[%p] Suspending vm...\n", (gpointer) (gsize) mono_native_thread_id_get ());
2826 if (suspend_count == 1) {
2827 // FIXME: Is it safe to call this inside the lock ?
2828 start_single_stepping ();
2829 mono_g_hash_table_foreach (thread_to_tls, notify_thread, NULL);
2832 mono_coop_mutex_unlock (&suspend_mutex);
2834 if (suspend_count == 1)
2836 * Suspend creation of new threadpool threads, since they cannot run
2838 mono_threadpool_suspend ();
2840 mono_loader_unlock ();
2846 * Decrease the suspend count of the VM. If the count reaches 0, runtime threads
2852 g_assert (is_debugger_thread ());
2854 mono_loader_lock ();
2856 mono_coop_mutex_lock (&suspend_mutex);
2858 g_assert (suspend_count > 0);
2861 DEBUG_PRINTF (1, "[%p] Resuming vm, suspend count=%d...\n", (gpointer) (gsize) mono_native_thread_id_get (), suspend_count);
2863 if (suspend_count == 0) {
2864 // FIXME: Is it safe to call this inside the lock ?
2865 stop_single_stepping ();
2866 mono_g_hash_table_foreach (thread_to_tls, reset_native_thread_suspend_state, NULL);
2869 /* Signal this even when suspend_count > 0, since some threads might have resume_count > 0 */
2870 mono_coop_cond_broadcast (&suspend_cond);
2872 mono_coop_mutex_unlock (&suspend_mutex);
2873 //g_assert (err == 0);
2875 if (suspend_count == 0)
2876 mono_threadpool_resume ();
2878 mono_loader_unlock ();
2884 * Resume just one thread.
2887 resume_thread (MonoInternalThread *thread)
2889 DebuggerTlsData *tls;
2891 g_assert (is_debugger_thread ());
2893 mono_loader_lock ();
2895 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
2898 mono_coop_mutex_lock (&suspend_mutex);
2900 g_assert (suspend_count > 0);
2902 DEBUG_PRINTF (1, "[sdb] Resuming thread %p...\n", (gpointer)(gssize)thread->tid);
2904 tls->resume_count += suspend_count;
2907 * Signal suspend_count without decreasing suspend_count, the threads will wake up
2908 * but only the one whose resume_count field is > 0 will be resumed.
2910 mono_coop_cond_broadcast (&suspend_cond);
2912 mono_coop_mutex_unlock (&suspend_mutex);
2913 //g_assert (err == 0);
2915 mono_loader_unlock ();
2919 free_frames (StackFrame **frames, int nframes)
2923 for (i = 0; i < nframes; ++i) {
2924 if (frames [i]->jit)
2925 mono_debug_free_method_jit_info (frames [i]->jit);
2926 g_free (frames [i]);
2932 invalidate_frames (DebuggerTlsData *tls)
2935 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
2938 free_frames (tls->frames, tls->frame_count);
2939 tls->frame_count = 0;
2942 free_frames (tls->restore_frames, tls->restore_frame_count);
2943 tls->restore_frame_count = 0;
2944 tls->restore_frames = NULL;
2950 * Suspend the current thread until the runtime is resumed. If the thread has a
2951 * pending invoke, then the invoke is executed before this function returns.
2954 suspend_current (void)
2956 DebuggerTlsData *tls;
2958 g_assert (!is_debugger_thread ());
2960 if (mono_loader_lock_is_owned_by_self ()) {
2962 * If we own the loader mutex, can't suspend until we release it, since the
2963 * whole runtime can deadlock otherwise.
2968 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
2971 mono_coop_mutex_lock (&suspend_mutex);
2973 tls->suspending = FALSE;
2974 tls->really_suspended = TRUE;
2976 if (!tls->suspended) {
2977 tls->suspended = TRUE;
2978 mono_coop_sem_post (&suspend_sem);
2981 DEBUG_PRINTF (1, "[%p] Suspended.\n", (gpointer) (gsize) mono_native_thread_id_get ());
2983 while (suspend_count - tls->resume_count > 0) {
2984 mono_coop_cond_wait (&suspend_cond, &suspend_mutex);
2987 tls->suspended = FALSE;
2988 tls->really_suspended = FALSE;
2990 threads_suspend_count --;
2992 mono_coop_mutex_unlock (&suspend_mutex);
2994 DEBUG_PRINTF (1, "[%p] Resumed.\n", (gpointer) (gsize) mono_native_thread_id_get ());
2996 if (tls->pending_invoke) {
2997 /* Save the original context */
2998 tls->pending_invoke->has_ctx = TRUE;
2999 tls->pending_invoke->ctx = tls->context.ctx;
3004 /* The frame info becomes invalid after a resume */
3005 tls->context.valid = FALSE;
3006 tls->async_state.valid = FALSE;
3007 invalidate_frames (tls);
3011 count_thread (gpointer key, gpointer value, gpointer user_data)
3013 DebuggerTlsData *tls = (DebuggerTlsData *)value;
3015 if (!tls->suspended && !tls->terminated && !mono_thread_internal_is_current (tls->thread))
3016 *(int*)user_data = *(int*)user_data + 1;
3020 count_threads_to_wait_for (void)
3024 mono_loader_lock ();
3025 mono_g_hash_table_foreach (thread_to_tls, count_thread, &count);
3026 mono_loader_unlock ();
3034 * Wait until the runtime is completely suspended.
3037 wait_for_suspend (void)
3039 int nthreads, nwait, err;
3040 gboolean waited = FALSE;
3042 // FIXME: Threads starting/stopping ?
3043 mono_loader_lock ();
3044 nthreads = mono_g_hash_table_size (thread_to_tls);
3045 mono_loader_unlock ();
3048 nwait = count_threads_to_wait_for ();
3050 DEBUG_PRINTF (1, "Waiting for %d(%d) threads to suspend...\n", nwait, nthreads);
3051 err = mono_coop_sem_wait (&suspend_sem, MONO_SEM_FLAGS_NONE);
3052 g_assert (err == 0);
3060 DEBUG_PRINTF (1, "%d threads suspended.\n", nthreads);
3066 * Return whenever the runtime is suspended.
3071 return count_threads_to_wait_for () == 0;
3075 no_seq_points_found (MonoMethod *method, int offset)
3078 * This can happen in full-aot mode with assemblies AOTed without the 'soft-debug' option to save space.
3080 printf ("Unable to find seq points for method '%s', offset 0x%x.\n", mono_method_full_name (method, TRUE), offset);
3084 DebuggerTlsData *tls;
3086 } ComputeFramesUserData;
3089 process_frame (StackFrameInfo *info, MonoContext *ctx, gpointer user_data)
3091 ComputeFramesUserData *ud = (ComputeFramesUserData *)user_data;
3093 MonoMethod *method, *actual_method, *api_method;
3097 if (info->type != FRAME_TYPE_MANAGED && info->type != FRAME_TYPE_INTERP) {
3098 if (info->type == FRAME_TYPE_DEBUGGER_INVOKE) {
3099 /* Mark the last frame as an invoke frame */
3101 ((StackFrame*)g_slist_last (ud->frames)->data)->flags |= FRAME_FLAG_DEBUGGER_INVOKE;
3107 method = jinfo_get_method (info->ji);
3109 method = info->method;
3110 actual_method = info->actual_method;
3111 api_method = method;
3116 if (!method || (method->wrapper_type && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD && method->wrapper_type != MONO_WRAPPER_MANAGED_TO_NATIVE))
3119 if (info->il_offset == -1) {
3120 /* mono_debug_il_offset_from_address () doesn't seem to be precise enough (#2092) */
3121 if (ud->frames == NULL) {
3122 if (mono_find_prev_seq_point_for_native_offset (info->domain, method, info->native_offset, NULL, &sp))
3123 info->il_offset = sp.il_offset;
3125 if (info->il_offset == -1)
3126 info->il_offset = mono_debug_il_offset_from_address (method, info->domain, info->native_offset);
3129 DEBUG_PRINTF (1, "\tFrame: %s:[il=0x%x, native=0x%x] %d\n", mono_method_full_name (method, TRUE), info->il_offset, info->native_offset, info->managed);
3131 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
3132 if (!CHECK_PROTOCOL_VERSION (2, 17))
3133 /* Older clients can't handle this flag */
3135 api_method = mono_marshal_method_from_wrapper (method);
3138 actual_method = api_method;
3139 flags |= FRAME_FLAG_NATIVE_TRANSITION;
3142 frame = g_new0 (StackFrame, 1);
3143 frame->method = method;
3144 frame->actual_method = actual_method;
3145 frame->api_method = api_method;
3146 frame->il_offset = info->il_offset;
3147 frame->native_offset = info->native_offset;
3148 frame->flags = flags;
3149 frame->ji = info->ji;
3150 frame->interp_frame = info->interp_frame;
3151 if (info->reg_locations)
3152 memcpy (frame->reg_locations, info->reg_locations, MONO_MAX_IREGS * sizeof (mgreg_t*));
3155 frame->has_ctx = TRUE;
3157 frame->domain = info->domain;
3159 ud->frames = g_slist_append (ud->frames, frame);
3165 process_filter_frame (StackFrameInfo *info, MonoContext *ctx, gpointer user_data)
3167 ComputeFramesUserData *ud = (ComputeFramesUserData *)user_data;
3170 * 'tls->filter_ctx' is the location of the throw site.
3172 * mono_walk_stack() will never actually hit the throw site, but unwind
3173 * directly from the filter to the call site; we abort stack unwinding here
3174 * once this happens and resume from the throw site.
3177 if (MONO_CONTEXT_GET_SP (ctx) >= MONO_CONTEXT_GET_SP (&ud->tls->filter_state.ctx))
3180 return process_frame (info, ctx, user_data);
3184 * Return a malloc-ed list of StackFrame structures.
3187 compute_frame_info_from (MonoInternalThread *thread, DebuggerTlsData *tls, MonoThreadUnwindState *state, int *out_nframes)
3189 ComputeFramesUserData user_data;
3190 MonoUnwindOptions opts = (MonoUnwindOptions)(MONO_UNWIND_DEFAULT | MONO_UNWIND_REG_LOCATIONS);
3195 user_data.tls = tls;
3196 user_data.frames = NULL;
3198 mono_walk_stack_with_state (process_frame, state, opts, &user_data);
3200 nframes = g_slist_length (user_data.frames);
3201 res = g_new0 (StackFrame*, nframes);
3202 l = user_data.frames;
3203 for (i = 0; i < nframes; ++i) {
3204 res [i] = (StackFrame *)l->data;
3207 *out_nframes = nframes;
3213 compute_frame_info (MonoInternalThread *thread, DebuggerTlsData *tls)
3215 ComputeFramesUserData user_data;
3217 int i, findex, new_frame_count;
3218 StackFrame **new_frames, *f;
3219 MonoUnwindOptions opts = (MonoUnwindOptions)(MONO_UNWIND_DEFAULT | MONO_UNWIND_REG_LOCATIONS);
3221 // FIXME: Locking on tls
3222 if (tls->frames && tls->frames_up_to_date)
3225 DEBUG_PRINTF (1, "Frames for %p(tid=%lx):\n", thread, (glong)thread->tid);
3227 user_data.tls = tls;
3228 user_data.frames = NULL;
3229 if (tls->terminated) {
3230 tls->frame_count = 0;
3232 } if (!tls->really_suspended && tls->async_state.valid) {
3233 /* Have to use the state saved by the signal handler */
3234 process_frame (&tls->async_last_frame, NULL, &user_data);
3235 mono_walk_stack_with_state (process_frame, &tls->async_state, opts, &user_data);
3236 } else if (tls->filter_state.valid) {
3238 * We are inside an exception filter.
3240 * First we add all the frames from inside the filter; 'tls->ctx' has the current context.
3242 if (tls->context.valid)
3243 mono_walk_stack_with_state (process_filter_frame, &tls->context, opts, &user_data);
3245 * After that, we resume unwinding from the location where the exception has been thrown.
3247 mono_walk_stack_with_state (process_frame, &tls->filter_state, opts, &user_data);
3248 } else if (tls->context.valid) {
3249 mono_walk_stack_with_state (process_frame, &tls->context, opts, &user_data);
3252 tls->frame_count = 0;
3256 new_frame_count = g_slist_length (user_data.frames);
3257 new_frames = g_new0 (StackFrame*, new_frame_count);
3259 for (tmp = user_data.frames; tmp; tmp = tmp->next) {
3260 f = (StackFrame *)tmp->data;
3263 * Reuse the id for already existing stack frames, so invokes don't invalidate
3264 * the still valid stack frames.
3266 for (i = 0; i < tls->frame_count; ++i) {
3267 if (MONO_CONTEXT_GET_SP (&tls->frames [i]->ctx) == MONO_CONTEXT_GET_SP (&f->ctx)) {
3268 f->id = tls->frames [i]->id;
3273 if (i >= tls->frame_count)
3274 f->id = InterlockedIncrement (&frame_id);
3276 new_frames [findex ++] = f;
3279 g_slist_free (user_data.frames);
3281 invalidate_frames (tls);
3283 tls->frames = new_frames;
3284 tls->frame_count = new_frame_count;
3285 tls->frames_up_to_date = TRUE;
3289 * GHFunc to emit an appdomain creation event
3290 * @param key Don't care
3291 * @param value A loaded appdomain
3292 * @param user_data Don't care
3295 emit_appdomain_load (gpointer key, gpointer value, gpointer user_data)
3297 process_profiler_event (EVENT_KIND_APPDOMAIN_CREATE, value);
3298 g_hash_table_foreach (get_agent_domain_info ((MonoDomain *)value)->loaded_classes, emit_type_load, NULL);
3302 * GHFunc to emit a thread start event
3303 * @param key A thread id
3304 * @param value A thread object
3305 * @param user_data Don't care
3308 emit_thread_start (gpointer key, gpointer value, gpointer user_data)
3310 g_assert (!mono_native_thread_id_equals (MONO_UINT_TO_NATIVE_THREAD_ID (GPOINTER_TO_UINT (key)), debugger_thread_id));
3311 process_profiler_event (EVENT_KIND_THREAD_START, value);
3315 * GFunc to emit an assembly load event
3316 * @param value A loaded assembly
3317 * @param user_data Don't care
3320 emit_assembly_load (gpointer value, gpointer user_data)
3322 process_profiler_event (EVENT_KIND_ASSEMBLY_LOAD, value);
3326 * GFunc to emit a type load event
3327 * @param value A loaded type
3328 * @param user_data Don't care
3331 emit_type_load (gpointer key, gpointer value, gpointer user_data)
3333 process_profiler_event (EVENT_KIND_TYPE_LOAD, value);
3337 strdup_tolower (char *s)
3342 for (p = s2; *p; ++p)
3348 * Same as g_path_get_basename () but handles windows paths as well,
3349 * which can occur in .mdb files created by pdb2mdb.
3352 dbg_path_get_basename (const char *filename)
3356 if (!filename || strchr (filename, '/') || !strchr (filename, '\\'))
3357 return g_path_get_basename (filename);
3361 /* No separator -> filename */
3362 r = strrchr (filename, '\\');
3364 return g_strdup (filename);
3366 /* Trailing slash, remove component */
3368 char *copy = g_strdup (filename);
3369 copy [r-filename] = 0;
3370 r = strrchr (copy, '\\');
3374 return g_strdup ("/");
3376 r = g_strdup (&r[1]);
3381 return g_strdup (&r[1]);
3385 init_jit_info_dbg_attrs (MonoJitInfo *ji)
3387 static MonoClass *hidden_klass, *step_through_klass, *non_user_klass;
3389 MonoCustomAttrInfo *ainfo;
3391 if (ji->dbg_attrs_inited)
3395 hidden_klass = mono_class_load_from_name (mono_defaults.corlib, "System.Diagnostics", "DebuggerHiddenAttribute");
3397 if (!step_through_klass)
3398 step_through_klass = mono_class_load_from_name (mono_defaults.corlib, "System.Diagnostics", "DebuggerStepThroughAttribute");
3400 if (!non_user_klass)
3401 non_user_klass = mono_class_load_from_name (mono_defaults.corlib, "System.Diagnostics", "DebuggerNonUserCodeAttribute");
3403 ainfo = mono_custom_attrs_from_method_checked (jinfo_get_method (ji), &error);
3404 mono_error_cleanup (&error); /* FIXME don't swallow the error? */
3406 if (mono_custom_attrs_has_attr (ainfo, hidden_klass))
3407 ji->dbg_hidden = TRUE;
3408 if (mono_custom_attrs_has_attr (ainfo, step_through_klass))
3409 ji->dbg_step_through = TRUE;
3410 if (mono_custom_attrs_has_attr (ainfo, non_user_klass))
3411 ji->dbg_non_user_code = TRUE;
3412 mono_custom_attrs_free (ainfo);
3415 ainfo = mono_custom_attrs_from_class_checked (jinfo_get_method (ji)->klass, &error);
3416 mono_error_cleanup (&error); /* FIXME don't swallow the error? */
3418 if (mono_custom_attrs_has_attr (ainfo, step_through_klass))
3419 ji->dbg_step_through = TRUE;
3420 if (mono_custom_attrs_has_attr (ainfo, non_user_klass))
3421 ji->dbg_non_user_code = TRUE;
3422 mono_custom_attrs_free (ainfo);
3425 mono_memory_barrier ();
3426 ji->dbg_attrs_inited = TRUE;
3434 * create_event_list:
3436 * Return a list of event request ids matching EVENT, starting from REQS, which
3437 * can be NULL to include all event requests. Set SUSPEND_POLICY to the suspend
3439 * We return request ids, instead of requests, to simplify threading, since
3440 * requests could be deleted anytime when the loader lock is not held.
3441 * LOCKING: Assumes the loader lock is held.
3444 create_event_list (EventKind event, GPtrArray *reqs, MonoJitInfo *ji, EventInfo *ei, int *suspend_policy)
3447 GSList *events = NULL;
3449 *suspend_policy = SUSPEND_POLICY_NONE;
3452 reqs = event_requests;
3457 for (i = 0; i < reqs->len; ++i) {
3458 EventRequest *req = (EventRequest *)g_ptr_array_index (reqs, i);
3459 if (req->event_kind == event) {
3460 gboolean filtered = FALSE;
3463 for (j = 0; j < req->nmodifiers; ++j) {
3464 Modifier *mod = &req->modifiers [j];
3466 if (mod->kind == MOD_KIND_COUNT) {
3468 if (mod->data.count > 0) {
3469 if (mod->data.count > 0) {
3471 if (mod->data.count == 0)
3475 } else if (mod->kind == MOD_KIND_THREAD_ONLY) {
3476 if (mod->data.thread != mono_thread_internal_current ())
3478 } else if (mod->kind == MOD_KIND_EXCEPTION_ONLY && ei) {
3479 if (mod->data.exc_class && mod->subclasses && !mono_class_is_assignable_from (mod->data.exc_class, ei->exc->vtable->klass))
3481 if (mod->data.exc_class && !mod->subclasses && mod->data.exc_class != ei->exc->vtable->klass)
3483 if (ei->caught && !mod->caught)
3485 if (!ei->caught && !mod->uncaught)
3487 } else if (mod->kind == MOD_KIND_ASSEMBLY_ONLY && ji) {
3489 gboolean found = FALSE;
3490 MonoAssembly **assemblies = mod->data.assemblies;
3493 for (k = 0; assemblies [k]; ++k)
3494 if (assemblies [k] == jinfo_get_method (ji)->klass->image->assembly)
3499 } else if (mod->kind == MOD_KIND_SOURCE_FILE_ONLY && ei && ei->klass) {
3500 gpointer iter = NULL;
3502 MonoDebugSourceInfo *sinfo;
3503 char *source_file, *s;
3504 gboolean found = FALSE;
3506 GPtrArray *source_file_list;
3508 while ((method = mono_class_get_methods (ei->klass, &iter))) {
3509 MonoDebugMethodInfo *minfo = mono_debug_lookup_method (method);
3512 mono_debug_get_seq_points (minfo, &source_file, &source_file_list, NULL, NULL, NULL);
3513 for (i = 0; i < source_file_list->len; ++i) {
3514 sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, i);
3516 * Do a case-insesitive match by converting the file name to
3519 s = strdup_tolower (sinfo->source_file);
3520 if (g_hash_table_lookup (mod->data.source_files, s))
3523 char *s2 = dbg_path_get_basename (sinfo->source_file);
3524 char *s3 = strdup_tolower (s2);
3526 if (g_hash_table_lookup (mod->data.source_files, s3))
3533 g_ptr_array_free (source_file_list, TRUE);
3538 } else if (mod->kind == MOD_KIND_TYPE_NAME_ONLY && ei && ei->klass) {
3541 s = mono_type_full_name (&ei->klass->byval_arg);
3542 if (!g_hash_table_lookup (mod->data.type_names, s))
3545 } else if (mod->kind == MOD_KIND_STEP) {
3546 if ((mod->data.filter & STEP_FILTER_STATIC_CTOR) && ji &&
3547 (jinfo_get_method (ji)->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
3548 !strcmp (jinfo_get_method (ji)->name, ".cctor") &&
3549 (jinfo_get_method (ji) != ((SingleStepReq*)req->info)->start_method))
3551 if ((mod->data.filter & STEP_FILTER_DEBUGGER_HIDDEN) && ji) {
3552 init_jit_info_dbg_attrs (ji);
3556 if ((mod->data.filter & STEP_FILTER_DEBUGGER_STEP_THROUGH) && ji) {
3557 init_jit_info_dbg_attrs (ji);
3558 if (ji->dbg_step_through)
3561 if ((mod->data.filter & STEP_FILTER_DEBUGGER_NON_USER_CODE) && ji) {
3562 init_jit_info_dbg_attrs (ji);
3563 if (ji->dbg_non_user_code)
3570 *suspend_policy = MAX (*suspend_policy, req->suspend_policy);
3571 events = g_slist_append (events, GINT_TO_POINTER (req->id));
3576 /* Send a VM START/DEATH event by default */
3577 if (event == EVENT_KIND_VM_START)
3578 events = g_slist_append (events, GINT_TO_POINTER (0));
3579 if (event == EVENT_KIND_VM_DEATH)
3580 events = g_slist_append (events, GINT_TO_POINTER (0));
3585 static G_GNUC_UNUSED const char*
3586 event_to_string (EventKind event)
3589 case EVENT_KIND_VM_START: return "VM_START";
3590 case EVENT_KIND_VM_DEATH: return "VM_DEATH";
3591 case EVENT_KIND_THREAD_START: return "THREAD_START";
3592 case EVENT_KIND_THREAD_DEATH: return "THREAD_DEATH";
3593 case EVENT_KIND_APPDOMAIN_CREATE: return "APPDOMAIN_CREATE";
3594 case EVENT_KIND_APPDOMAIN_UNLOAD: return "APPDOMAIN_UNLOAD";
3595 case EVENT_KIND_METHOD_ENTRY: return "METHOD_ENTRY";
3596 case EVENT_KIND_METHOD_EXIT: return "METHOD_EXIT";
3597 case EVENT_KIND_ASSEMBLY_LOAD: return "ASSEMBLY_LOAD";
3598 case EVENT_KIND_ASSEMBLY_UNLOAD: return "ASSEMBLY_UNLOAD";
3599 case EVENT_KIND_BREAKPOINT: return "BREAKPOINT";
3600 case EVENT_KIND_STEP: return "STEP";
3601 case EVENT_KIND_TYPE_LOAD: return "TYPE_LOAD";
3602 case EVENT_KIND_EXCEPTION: return "EXCEPTION";
3603 case EVENT_KIND_KEEPALIVE: return "KEEPALIVE";
3604 case EVENT_KIND_USER_BREAK: return "USER_BREAK";
3605 case EVENT_KIND_USER_LOG: return "USER_LOG";
3607 g_assert_not_reached ();
3615 * Send an event to the client, suspending the vm if needed.
3616 * LOCKING: Since this can suspend the calling thread, no locks should be held
3618 * The EVENTS list is freed by this function.
3621 process_event (EventKind event, gpointer arg, gint32 il_offset, MonoContext *ctx, GSList *events, int suspend_policy)
3625 MonoDomain *domain = mono_domain_get ();
3626 MonoThread *thread = NULL;
3627 MonoObject *keepalive_obj = NULL;
3628 gboolean send_success = FALSE;
3633 DEBUG_PRINTF (2, "Debugger agent not initialized yet: dropping %s\n", event_to_string (event));
3637 if (!vm_start_event_sent && event != EVENT_KIND_VM_START) {
3638 // FIXME: We miss those events
3639 DEBUG_PRINTF (2, "VM start event not sent yet: dropping %s\n", event_to_string (event));
3643 if (vm_death_event_sent) {
3644 DEBUG_PRINTF (2, "VM death event has been sent: dropping %s\n", event_to_string (event));
3648 if (mono_runtime_is_shutting_down () && event != EVENT_KIND_VM_DEATH) {
3649 DEBUG_PRINTF (2, "Mono runtime is shutting down: dropping %s\n", event_to_string (event));
3654 DEBUG_PRINTF (2, "Debugger client is not connected: dropping %s\n", event_to_string (event));
3658 if (event == EVENT_KIND_KEEPALIVE)
3659 suspend_policy = SUSPEND_POLICY_NONE;
3664 if (agent_config.defer) {
3665 if (is_debugger_thread ()) {
3666 /* Don't suspend on events from the debugger thread */
3667 suspend_policy = SUSPEND_POLICY_NONE;
3670 if (is_debugger_thread () && event != EVENT_KIND_VM_DEATH)
3671 // FIXME: Send these with a NULL thread, don't suspend the current thread
3676 nevents = g_slist_length (events);
3677 buffer_init (&buf, 128);
3678 buffer_add_byte (&buf, suspend_policy);
3679 buffer_add_int (&buf, nevents);
3681 for (l = events; l; l = l->next) {
3682 buffer_add_byte (&buf, event); // event kind
3683 buffer_add_int (&buf, GPOINTER_TO_INT (l->data)); // request id
3687 if (event == EVENT_KIND_VM_DEATH) {
3691 thread = is_debugger_thread () ? mono_thread_get_main () : mono_thread_current ();
3693 if (event == EVENT_KIND_VM_START && arg != NULL)
3694 thread = (MonoThread *)arg;
3697 buffer_add_objid (&buf, (MonoObject*)thread); // thread
3700 case EVENT_KIND_THREAD_START:
3701 case EVENT_KIND_THREAD_DEATH:
3703 case EVENT_KIND_APPDOMAIN_CREATE:
3704 case EVENT_KIND_APPDOMAIN_UNLOAD:
3705 buffer_add_domainid (&buf, (MonoDomain *)arg);
3707 case EVENT_KIND_METHOD_ENTRY:
3708 case EVENT_KIND_METHOD_EXIT:
3709 buffer_add_methodid (&buf, domain, (MonoMethod *)arg);
3711 case EVENT_KIND_ASSEMBLY_LOAD:
3712 buffer_add_assemblyid (&buf, domain, (MonoAssembly *)arg);
3714 case EVENT_KIND_ASSEMBLY_UNLOAD: {
3715 DebuggerTlsData *tls;
3717 /* The domain the assembly belonged to is not equal to the current domain */
3718 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3720 g_assert (tls->domain_unloading);
3722 buffer_add_assemblyid (&buf, tls->domain_unloading, (MonoAssembly *)arg);
3725 case EVENT_KIND_TYPE_LOAD:
3726 buffer_add_typeid (&buf, domain, (MonoClass *)arg);
3728 case EVENT_KIND_BREAKPOINT:
3729 case EVENT_KIND_STEP:
3730 buffer_add_methodid (&buf, domain, (MonoMethod *)arg);
3731 buffer_add_long (&buf, il_offset);
3733 case EVENT_KIND_VM_START:
3734 buffer_add_domainid (&buf, mono_get_root_domain ());
3736 case EVENT_KIND_VM_DEATH:
3737 if (CHECK_PROTOCOL_VERSION (2, 27))
3738 buffer_add_int (&buf, mono_environment_exitcode_get ());
3740 case EVENT_KIND_EXCEPTION: {
3741 EventInfo *ei = (EventInfo *)arg;
3742 buffer_add_objid (&buf, ei->exc);
3744 * We are not yet suspending, so get_objref () will not keep this object alive. So we need to do it
3745 * later after the suspension. (#12494).
3747 keepalive_obj = ei->exc;
3750 case EVENT_KIND_USER_BREAK:
3752 case EVENT_KIND_USER_LOG: {
3753 EventInfo *ei = (EventInfo *)arg;
3754 buffer_add_int (&buf, ei->level);
3755 buffer_add_string (&buf, ei->category ? ei->category : "");
3756 buffer_add_string (&buf, ei->message ? ei->message : "");
3759 case EVENT_KIND_KEEPALIVE:
3760 suspend_policy = SUSPEND_POLICY_NONE;
3763 g_assert_not_reached ();
3767 if (event == EVENT_KIND_VM_START) {
3768 suspend_policy = agent_config.suspend ? SUSPEND_POLICY_ALL : SUSPEND_POLICY_NONE;
3769 if (!agent_config.defer)
3770 start_debugger_thread ();
3773 if (event == EVENT_KIND_VM_DEATH) {
3774 vm_death_event_sent = TRUE;
3775 suspend_policy = SUSPEND_POLICY_NONE;
3778 if (mono_runtime_is_shutting_down ())
3779 suspend_policy = SUSPEND_POLICY_NONE;
3781 if (suspend_policy != SUSPEND_POLICY_NONE) {
3783 * Save the thread context and start suspending before sending the packet,
3784 * since we could be receiving the resume request before send_packet ()
3787 save_thread_context (ctx);
3791 /* This will keep this object alive */
3792 get_objref (keepalive_obj);
3795 send_success = send_packet (CMD_SET_EVENT, CMD_COMPOSITE, &buf);
3799 g_slist_free (events);
3802 if (!send_success) {
3803 DEBUG_PRINTF (2, "Sending command %s failed.\n", event_to_string (event));
3807 if (event == EVENT_KIND_VM_START) {
3808 vm_start_event_sent = TRUE;
3811 DEBUG_PRINTF (1, "[%p] Sent %d events %s(%d), suspend=%d.\n", (gpointer) (gsize) mono_native_thread_id_get (), nevents, event_to_string (event), ecount, suspend_policy);
3813 switch (suspend_policy) {
3814 case SUSPEND_POLICY_NONE:
3816 case SUSPEND_POLICY_ALL:
3819 case SUSPEND_POLICY_EVENT_THREAD:
3823 g_assert_not_reached ();
3828 process_profiler_event (EventKind event, gpointer arg)
3832 EventInfo ei, *ei_arg = NULL;
3834 if (event == EVENT_KIND_TYPE_LOAD) {
3835 ei.klass = (MonoClass *)arg;
3839 mono_loader_lock ();
3840 events = create_event_list (event, NULL, NULL, ei_arg, &suspend_policy);
3841 mono_loader_unlock ();
3843 process_event (event, arg, 0, NULL, events, suspend_policy);
3847 runtime_initialized (MonoProfiler *prof)
3849 process_profiler_event (EVENT_KIND_VM_START, mono_thread_current ());
3850 if (agent_config.defer)
3851 start_debugger_thread ();
3855 runtime_shutdown (MonoProfiler *prof)
3857 process_profiler_event (EVENT_KIND_VM_DEATH, NULL);
3859 mono_debugger_agent_cleanup ();
3863 thread_startup (MonoProfiler *prof, uintptr_t tid)
3865 MonoInternalThread *thread = mono_thread_internal_current ();
3866 MonoInternalThread *old_thread;
3867 DebuggerTlsData *tls;
3869 if (is_debugger_thread ())
3872 g_assert (mono_native_thread_id_equals (MONO_UINT_TO_NATIVE_THREAD_ID (tid), MONO_UINT_TO_NATIVE_THREAD_ID (thread->tid)));
3874 mono_loader_lock ();
3875 old_thread = (MonoInternalThread *)mono_g_hash_table_lookup (tid_to_thread, GUINT_TO_POINTER (tid));
3876 mono_loader_unlock ();
3878 if (thread == old_thread) {
3880 * For some reason, thread_startup () might be called for the same thread
3881 * multiple times (attach ?).
3883 DEBUG_PRINTF (1, "[%p] thread_start () called multiple times for %p, ignored.\n", GUINT_TO_POINTER (tid), GUINT_TO_POINTER (tid));
3887 * thread_end () might not be called for some threads, and the tid could
3890 DEBUG_PRINTF (1, "[%p] Removing stale data for tid %p.\n", GUINT_TO_POINTER (tid), GUINT_TO_POINTER (tid));
3891 mono_loader_lock ();
3892 mono_g_hash_table_remove (thread_to_tls, old_thread);
3893 mono_g_hash_table_remove (tid_to_thread, GUINT_TO_POINTER (tid));
3894 mono_g_hash_table_remove (tid_to_thread_obj, GUINT_TO_POINTER (tid));
3895 mono_loader_unlock ();
3899 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3901 // FIXME: Free this somewhere
3902 tls = g_new0 (DebuggerTlsData, 1);
3903 MONO_GC_REGISTER_ROOT_SINGLE (tls->thread, MONO_ROOT_SOURCE_DEBUGGER, "debugger thread reference");
3904 tls->thread = thread;
3905 mono_native_tls_set_value (debugger_tls_id, tls);
3907 DEBUG_PRINTF (1, "[%p] Thread started, obj=%p, tls=%p.\n", (gpointer)tid, thread, tls);
3909 mono_loader_lock ();
3910 mono_g_hash_table_insert (thread_to_tls, thread, tls);
3911 mono_g_hash_table_insert (tid_to_thread, (gpointer)tid, thread);
3912 mono_g_hash_table_insert (tid_to_thread_obj, GUINT_TO_POINTER (tid), mono_thread_current ());
3913 mono_loader_unlock ();
3915 process_profiler_event (EVENT_KIND_THREAD_START, thread);
3918 * suspend_vm () could have missed this thread, so wait for a resume.
3924 thread_end (MonoProfiler *prof, uintptr_t tid)
3926 MonoInternalThread *thread;
3927 DebuggerTlsData *tls = NULL;
3929 mono_loader_lock ();
3930 thread = (MonoInternalThread *)mono_g_hash_table_lookup (tid_to_thread, GUINT_TO_POINTER (tid));
3932 mono_g_hash_table_remove (tid_to_thread_obj, GUINT_TO_POINTER (tid));
3933 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
3935 /* FIXME: Maybe we need to free this instead, but some code can't handle that */
3936 tls->terminated = TRUE;
3937 /* Can't remove from tid_to_thread, as that would defeat the check in thread_start () */
3938 MONO_GC_UNREGISTER_ROOT (tls->thread);
3942 mono_loader_unlock ();
3944 /* We might be called for threads started before we registered the start callback */
3946 DEBUG_PRINTF (1, "[%p] Thread terminated, obj=%p, tls=%p.\n", (gpointer)tid, thread, tls);
3948 if (mono_thread_internal_is_current (thread) && !mono_native_tls_get_value (debugger_tls_id)
3951 * This can happen on darwin since we deregister threads using pthread dtors.
3952 * process_profiler_event () and the code it calls cannot handle a null TLS value.
3957 process_profiler_event (EVENT_KIND_THREAD_DEATH, thread);
3962 appdomain_load (MonoProfiler *prof, MonoDomain *domain)
3964 mono_loader_lock ();
3965 g_hash_table_insert (domains, domain, domain);
3966 mono_loader_unlock ();
3968 process_profiler_event (EVENT_KIND_APPDOMAIN_CREATE, domain);
3972 appdomain_start_unload (MonoProfiler *prof, MonoDomain *domain)
3974 DebuggerTlsData *tls;
3976 /* This might be called during shutdown on the debugger thread from the CMD_VM_EXIT code */
3977 if (is_debugger_thread ())
3981 * Remember the currently unloading appdomain as it is needed to generate
3982 * proper ids for unloading assemblies.
3984 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3986 tls->domain_unloading = domain;
3990 appdomain_unload (MonoProfiler *prof, MonoDomain *domain)
3992 DebuggerTlsData *tls;
3994 if (is_debugger_thread ())
3997 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3999 tls->domain_unloading = NULL;
4001 clear_breakpoints_for_domain (domain);
4003 mono_loader_lock ();
4004 /* Invalidate each thread's frame stack */
4005 mono_g_hash_table_foreach (thread_to_tls, invalidate_each_thread, NULL);
4006 mono_loader_unlock ();
4008 process_profiler_event (EVENT_KIND_APPDOMAIN_UNLOAD, domain);
4012 * invalidate_each_thread:
4014 * A GHFunc to invalidate frames.
4015 * value must be a DebuggerTlsData*
4018 invalidate_each_thread (gpointer key, gpointer value, gpointer user_data)
4020 invalidate_frames ((DebuggerTlsData *)value);
4024 assembly_load (MonoProfiler *prof, MonoAssembly *assembly)
4026 /* Sent later in jit_end () */
4028 g_ptr_array_add (pending_assembly_loads, assembly);
4033 assembly_unload (MonoProfiler *prof, MonoAssembly *assembly)
4035 if (is_debugger_thread ())
4038 process_profiler_event (EVENT_KIND_ASSEMBLY_UNLOAD, assembly);
4040 clear_event_requests_for_assembly (assembly);
4041 clear_types_for_assembly (assembly);
4045 send_type_load (MonoClass *klass)
4047 gboolean type_load = FALSE;
4048 MonoDomain *domain = mono_domain_get ();
4049 AgentDomainInfo *info = NULL;
4051 info = get_agent_domain_info (domain);
4053 mono_loader_lock ();
4055 if (!g_hash_table_lookup (info->loaded_classes, klass)) {
4057 g_hash_table_insert (info->loaded_classes, klass, klass);
4060 mono_loader_unlock ();
4063 emit_type_load (klass, klass, NULL);
4067 * Emit load events for all types currently loaded in the domain.
4068 * Takes the loader and domain locks.
4069 * user_data is unused.
4072 send_types_for_domain (MonoDomain *domain, void *user_data)
4074 MonoDomain* old_domain;
4075 AgentDomainInfo *info = NULL;
4077 info = get_agent_domain_info (domain);
4080 old_domain = mono_domain_get ();
4082 mono_domain_set (domain, TRUE);
4084 mono_loader_lock ();
4085 g_hash_table_foreach (info->loaded_classes, emit_type_load, NULL);
4086 mono_loader_unlock ();
4088 mono_domain_set (old_domain, TRUE);
4092 send_assemblies_for_domain (MonoDomain *domain, void *user_data)
4095 MonoDomain* old_domain;
4097 old_domain = mono_domain_get ();
4099 mono_domain_set (domain, TRUE);
4101 mono_domain_assemblies_lock (domain);
4102 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
4103 MonoAssembly* ass = (MonoAssembly *)tmp->data;
4104 emit_assembly_load (ass, NULL);
4106 mono_domain_assemblies_unlock (domain);
4108 mono_domain_set (old_domain, TRUE);
4112 jit_done (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *jinfo)
4114 jit_end (prof, method, jinfo);
4118 jit_failed (MonoProfiler *prof, MonoMethod *method)
4120 jit_end (prof, method, NULL);
4124 jit_end (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *jinfo)
4127 * We emit type load events when the first method of the type is JITted,
4128 * since the class load profiler callbacks might be called with the
4129 * loader lock held. They could also occur in the debugger thread.
4130 * Same for assembly load events.
4133 MonoAssembly *assembly = NULL;
4135 // FIXME: Maybe store this in TLS so the thread of the event is correct ?
4137 if (pending_assembly_loads->len > 0) {
4138 assembly = (MonoAssembly *)g_ptr_array_index (pending_assembly_loads, 0);
4139 g_ptr_array_remove_index (pending_assembly_loads, 0);
4144 process_profiler_event (EVENT_KIND_ASSEMBLY_LOAD, assembly);
4150 send_type_load (method->klass);
4153 add_pending_breakpoints (method, jinfo);
4157 * BREAKPOINTS/SINGLE STEPPING
4161 * Contains information about an inserted breakpoint.
4164 long il_offset, native_offset;
4168 } BreakpointInstance;
4171 * Contains generic information about a breakpoint.
4175 * The method where the breakpoint is placed. Can be NULL in which case it
4176 * is inserted into every method. This is used to implement method entry/
4177 * exit events. Can be a generic method definition, in which case the
4178 * breakpoint is inserted into every instance.
4184 * A list of BreakpointInstance structures describing where the breakpoint
4185 * was inserted. There could be more than one because of
4186 * generics/appdomains/method entry/exit.
4188 GPtrArray *children;
4191 /* List of breakpoints */
4192 /* Protected by the loader lock */
4193 static GPtrArray *breakpoints;
4194 /* Maps breakpoint locations to the number of breakpoints at that location */
4195 static GHashTable *bp_locs;
4198 breakpoints_init (void)
4200 breakpoints = g_ptr_array_new ();
4201 bp_locs = g_hash_table_new (NULL, NULL);
4205 * insert_breakpoint:
4207 * Insert the breakpoint described by BP into the method described by
4211 insert_breakpoint (MonoSeqPointInfo *seq_points, MonoDomain *domain, MonoJitInfo *ji, MonoBreakpoint *bp, MonoError *error)
4214 BreakpointInstance *inst;
4215 SeqPointIterator it;
4216 gboolean it_has_sp = FALSE;
4221 mono_seq_point_iterator_init (&it, seq_points);
4222 while (mono_seq_point_iterator_next (&it)) {
4223 if (it.seq_point.il_offset == bp->il_offset) {
4231 * The set of IL offsets with seq points doesn't completely match the
4232 * info returned by CMD_METHOD_GET_DEBUG_INFO (#407).
4234 mono_seq_point_iterator_init (&it, seq_points);
4235 while (mono_seq_point_iterator_next (&it)) {
4236 if (it.seq_point.il_offset != METHOD_ENTRY_IL_OFFSET &&
4237 it.seq_point.il_offset != METHOD_EXIT_IL_OFFSET &&
4238 it.seq_point.il_offset + 1 == bp->il_offset) {
4246 char *s = g_strdup_printf ("Unable to insert breakpoint at %s:%d", mono_method_full_name (jinfo_get_method (ji), TRUE), bp->il_offset);
4248 mono_seq_point_iterator_init (&it, seq_points);
4249 while (mono_seq_point_iterator_next (&it))
4250 DEBUG_PRINTF (1, "%d\n", it.seq_point.il_offset);
4253 mono_error_set_error (error, MONO_ERROR_GENERIC, "%s", s);
4254 g_warning ("%s", s);
4258 g_warning ("%s", s);
4264 inst = g_new0 (BreakpointInstance, 1);
4265 inst->il_offset = it.seq_point.il_offset;
4266 inst->native_offset = it.seq_point.native_offset;
4267 inst->ip = (guint8*)ji->code_start + it.seq_point.native_offset;
4269 inst->domain = domain;
4271 mono_loader_lock ();
4273 g_ptr_array_add (bp->children, inst);
4275 mono_loader_unlock ();
4278 count = GPOINTER_TO_INT (g_hash_table_lookup (bp_locs, inst->ip));
4279 g_hash_table_insert (bp_locs, inst->ip, GINT_TO_POINTER (count + 1));
4282 if (it.seq_point.native_offset == SEQ_POINT_NATIVE_OFFSET_DEAD_CODE) {
4283 DEBUG_PRINTF (1, "[dbg] Attempting to insert seq point at dead IL offset %d, ignoring.\n", (int)bp->il_offset);
4284 } else if (count == 0) {
4285 if (ji->is_interp) {
4286 mono_interp_set_breakpoint (ji, inst->ip);
4288 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
4289 mono_arch_set_breakpoint (ji, inst->ip);
4296 DEBUG_PRINTF (1, "[dbg] Inserted breakpoint at %s:[il=0x%x,native=0x%x] [%p](%d).\n", mono_method_full_name (jinfo_get_method (ji), TRUE), (int)it.seq_point.il_offset, (int)it.seq_point.native_offset, inst->ip, count);
4300 remove_breakpoint (BreakpointInstance *inst)
4302 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
4304 MonoJitInfo *ji = inst->ji;
4305 guint8 *ip = inst->ip;
4308 count = GPOINTER_TO_INT (g_hash_table_lookup (bp_locs, ip));
4309 g_hash_table_insert (bp_locs, ip, GINT_TO_POINTER (count - 1));
4312 g_assert (count > 0);
4314 if (count == 1 && inst->native_offset != SEQ_POINT_NATIVE_OFFSET_DEAD_CODE) {
4316 mono_interp_clear_breakpoint (ji, ip);
4318 mono_arch_clear_breakpoint (ji, ip);
4319 DEBUG_PRINTF (1, "[dbg] Clear breakpoint at %s [%p].\n", mono_method_full_name (jinfo_get_method (ji), TRUE), ip);
4327 * This doesn't take any locks.
4329 static inline gboolean
4330 bp_matches_method (MonoBreakpoint *bp, MonoMethod *method)
4336 if (method == bp->method)
4338 if (method->is_inflated && ((MonoMethodInflated*)method)->declaring == bp->method)
4341 if (bp->method->is_inflated && method->is_inflated) {
4342 MonoMethodInflated *bpimethod = (MonoMethodInflated*)bp->method;
4343 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
4345 /* Open generic methods should match closed generic methods of the same class */
4346 if (bpimethod->declaring == imethod->declaring && bpimethod->context.class_inst == imethod->context.class_inst && bpimethod->context.method_inst && bpimethod->context.method_inst->is_open) {
4347 for (i = 0; i < bpimethod->context.method_inst->type_argc; ++i) {
4348 MonoType *t1 = bpimethod->context.method_inst->type_argv [i];
4350 /* FIXME: Handle !mvar */
4351 if (t1->type != MONO_TYPE_MVAR)
4362 * add_pending_breakpoints:
4364 * Insert pending breakpoints into the newly JITted method METHOD.
4367 add_pending_breakpoints (MonoMethod *method, MonoJitInfo *ji)
4370 MonoSeqPointInfo *seq_points;
4372 MonoMethod *jmethod;
4377 domain = mono_domain_get ();
4379 mono_loader_lock ();
4381 for (i = 0; i < breakpoints->len; ++i) {
4382 MonoBreakpoint *bp = (MonoBreakpoint *)g_ptr_array_index (breakpoints, i);
4383 gboolean found = FALSE;
4385 if (!bp_matches_method (bp, method))
4388 for (j = 0; j < bp->children->len; ++j) {
4389 BreakpointInstance *inst = (BreakpointInstance *)g_ptr_array_index (bp->children, j);
4396 MonoMethod *declaring = NULL;
4398 jmethod = jinfo_get_method (ji);
4399 if (jmethod->is_inflated)
4400 declaring = mono_method_get_declaring_generic_method (jmethod);
4402 mono_domain_lock (domain);
4403 seq_points = (MonoSeqPointInfo *)g_hash_table_lookup (domain_jit_info (domain)->seq_points, jmethod);
4404 if (!seq_points && declaring)
4405 seq_points = (MonoSeqPointInfo *)g_hash_table_lookup (domain_jit_info (domain)->seq_points, declaring);
4406 mono_domain_unlock (domain);
4408 /* Could be AOT code */
4410 g_assert (seq_points);
4412 insert_breakpoint (seq_points, domain, ji, bp, NULL);
4416 mono_loader_unlock ();
4420 set_bp_in_method (MonoDomain *domain, MonoMethod *method, MonoSeqPointInfo *seq_points, MonoBreakpoint *bp, MonoError *error)
4428 code = mono_jit_find_compiled_method_with_jit_info (domain, method, &ji);
4432 /* Might be AOTed code */
4433 mono_class_init (method->klass);
4434 code = mono_aot_get_method_checked (domain, method, &oerror);
4436 mono_error_assert_ok (&oerror);
4437 ji = mono_jit_info_table_find (domain, (char *)code);
4439 /* Might be interpreted */
4440 ji = mono_interp_find_jit_info (domain, method);
4445 insert_breakpoint (seq_points, domain, ji, bp, error);
4449 clear_breakpoint (MonoBreakpoint *bp);
4454 * Set a breakpoint at IL_OFFSET in METHOD.
4455 * METHOD can be NULL, in which case a breakpoint is placed in all methods.
4456 * METHOD can also be a generic method definition, in which case a breakpoint
4457 * is placed in all instances of the method.
4458 * If ERROR is non-NULL, then it is set and NULL is returnd if some breakpoints couldn't be
4461 static MonoBreakpoint*
4462 set_breakpoint (MonoMethod *method, long il_offset, EventRequest *req, MonoError *error)
4465 GHashTableIter iter, iter2;
4468 MonoSeqPointInfo *seq_points;
4470 GPtrArray *method_domains;
4471 GPtrArray *method_seq_points;
4478 // - suspend/resume the vm to prevent code patching problems
4479 // - multiple breakpoints on the same location
4480 // - dynamic methods
4483 bp = g_new0 (MonoBreakpoint, 1);
4484 bp->method = method;
4485 bp->il_offset = il_offset;
4487 bp->children = g_ptr_array_new ();
4489 DEBUG_PRINTF (1, "[dbg] Setting %sbreakpoint at %s:0x%x.\n", (req->event_kind == EVENT_KIND_STEP) ? "single step " : "", method ? mono_method_full_name (method, TRUE) : "<all>", (int)il_offset);
4491 methods = g_ptr_array_new ();
4492 method_domains = g_ptr_array_new ();
4493 method_seq_points = g_ptr_array_new ();
4495 mono_loader_lock ();
4496 g_hash_table_iter_init (&iter, domains);
4497 while (g_hash_table_iter_next (&iter, (void**)&domain, NULL)) {
4498 mono_domain_lock (domain);
4499 g_hash_table_iter_init (&iter2, domain_jit_info (domain)->seq_points);
4500 while (g_hash_table_iter_next (&iter2, (void**)&m, (void**)&seq_points)) {
4501 if (bp_matches_method (bp, m)) {
4502 /* Save the info locally to simplify the code inside the domain lock */
4503 g_ptr_array_add (methods, m);
4504 g_ptr_array_add (method_domains, domain);
4505 g_ptr_array_add (method_seq_points, seq_points);
4508 mono_domain_unlock (domain);
4511 for (i = 0; i < methods->len; ++i) {
4512 m = (MonoMethod *)g_ptr_array_index (methods, i);
4513 domain = (MonoDomain *)g_ptr_array_index (method_domains, i);
4514 seq_points = (MonoSeqPointInfo *)g_ptr_array_index (method_seq_points, i);
4515 set_bp_in_method (domain, m, seq_points, bp, error);
4518 g_ptr_array_add (breakpoints, bp);
4519 mono_loader_unlock ();
4521 g_ptr_array_free (methods, TRUE);
4522 g_ptr_array_free (method_domains, TRUE);
4523 g_ptr_array_free (method_seq_points, TRUE);
4525 if (error && !mono_error_ok (error)) {
4526 clear_breakpoint (bp);
4534 clear_breakpoint (MonoBreakpoint *bp)
4538 // FIXME: locking, races
4539 for (i = 0; i < bp->children->len; ++i) {
4540 BreakpointInstance *inst = (BreakpointInstance *)g_ptr_array_index (bp->children, i);
4542 remove_breakpoint (inst);
4547 mono_loader_lock ();
4548 g_ptr_array_remove (breakpoints, bp);
4549 mono_loader_unlock ();
4551 g_ptr_array_free (bp->children, TRUE);
4556 breakpoints_cleanup (void)
4560 mono_loader_lock ();
4562 while (i < event_requests->len) {
4563 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
4565 if (req->event_kind == EVENT_KIND_BREAKPOINT) {
4566 clear_breakpoint ((MonoBreakpoint *)req->info);
4567 g_ptr_array_remove_index_fast (event_requests, i);
4574 for (i = 0; i < breakpoints->len; ++i)
4575 g_free (g_ptr_array_index (breakpoints, i));
4577 g_ptr_array_free (breakpoints, TRUE);
4578 g_hash_table_destroy (bp_locs);
4583 mono_loader_unlock ();
4587 * clear_breakpoints_for_domain:
4589 * Clear breakpoint instances which reference DOMAIN.
4592 clear_breakpoints_for_domain (MonoDomain *domain)
4596 /* This could be called after shutdown */
4600 mono_loader_lock ();
4601 for (i = 0; i < breakpoints->len; ++i) {
4602 MonoBreakpoint *bp = (MonoBreakpoint *)g_ptr_array_index (breakpoints, i);
4605 while (j < bp->children->len) {
4606 BreakpointInstance *inst = (BreakpointInstance *)g_ptr_array_index (bp->children, j);
4608 if (inst->domain == domain) {
4609 remove_breakpoint (inst);
4613 g_ptr_array_remove_index_fast (bp->children, j);
4619 mono_loader_unlock ();
4623 * ss_calculate_framecount:
4625 * Ensure DebuggerTlsData fields are filled out.
4627 static void ss_calculate_framecount (DebuggerTlsData *tls, MonoContext *ctx)
4629 if (!tls->context.valid)
4630 mono_thread_state_init_from_monoctx (&tls->context, ctx);
4631 compute_frame_info (tls->thread, tls);
4635 ensure_jit (StackFrame* frame)
4638 frame->jit = mono_debug_find_method (frame->api_method, frame->domain);
4639 if (!frame->jit && frame->api_method->is_inflated)
4640 frame->jit = mono_debug_find_method(mono_method_get_declaring_generic_method (frame->api_method), frame->domain);
4644 /* This could happen for aot images with no jit debug info */
4645 s = mono_method_full_name (frame->api_method, TRUE);
4646 DEBUG_PRINTF(1, "[dbg] No debug information found for '%s'.\n", s);
4657 * Return FALSE if single stepping needs to continue.
4660 ss_update (SingleStepReq *req, MonoJitInfo *ji, SeqPoint *sp, DebuggerTlsData *tls, MonoContext *ctx, MonoMethod* method)
4662 MonoDebugMethodInfo *minfo;
4663 MonoDebugSourceLocation *loc = NULL;
4664 gboolean hit = TRUE;
4666 if (req->async_stepout_method == method) {
4667 DEBUG_PRINTF (1, "[%p] Breakpoint hit during async step-out at %s hit, continuing stepping out.\n", (gpointer)(gsize)mono_native_thread_id_get (), method->name);
4671 if (req->depth == STEP_DEPTH_OVER && (sp->flags & MONO_SEQ_POINT_FLAG_NONEMPTY_STACK)) {
4673 * These seq points are inserted by the JIT after calls, step over needs to skip them.
4675 DEBUG_PRINTF (1, "[%p] Seq point at nonempty stack %x while stepping over, continuing single stepping.\n", (gpointer) (gsize) mono_native_thread_id_get (), sp->il_offset);
4679 if ((req->depth == STEP_DEPTH_OVER || req->depth == STEP_DEPTH_OUT) && hit && !req->async_stepout_method) {
4680 gboolean is_step_out = req->depth == STEP_DEPTH_OUT;
4682 ss_calculate_framecount (tls, ctx);
4684 // Because functions can call themselves recursively, we need to make sure we're stopping at the right stack depth.
4685 // In case of step out, the target is the frame *enclosing* the one where the request was made.
4686 int target_frames = req->nframes + (is_step_out ? -1 : 0);
4687 if (req->nframes > 0 && tls->frame_count > 0 && tls->frame_count > target_frames) {
4688 /* Hit the breakpoint in a recursive call, don't halt */
4689 DEBUG_PRINTF (1, "[%p] Breakpoint at lower frame while stepping %s, continuing single stepping.\n", (gpointer) (gsize) mono_native_thread_id_get (), is_step_out ? "out" : "over");
4694 if (req->depth == STEP_DEPTH_INTO && req->size == STEP_SIZE_MIN && (sp->flags & MONO_SEQ_POINT_FLAG_NONEMPTY_STACK) && ss_req->start_method){
4695 ss_calculate_framecount (tls, ctx);
4696 if (ss_req->start_method == method && req->nframes && tls->frame_count == req->nframes) {//Check also frame count(could be recursion)
4697 DEBUG_PRINTF (1, "[%p] Seq point at nonempty stack %x while stepping in, continuing single stepping.\n", (gpointer) (gsize) mono_native_thread_id_get (), sp->il_offset);
4702 MonoDebugMethodAsyncInfo* async_method = mono_debug_lookup_method_async_debug_info (method);
4704 for (int i = 0; i < async_method->num_awaits; i++) {
4705 if (async_method->yield_offsets[i] == sp->il_offset || async_method->resume_offsets[i] == sp->il_offset) {
4706 mono_debug_free_method_async_debug_info (async_method);
4710 mono_debug_free_method_async_debug_info (async_method);
4713 if (req->size != STEP_SIZE_LINE)
4716 /* Have to check whenever a different source line was reached */
4717 minfo = mono_debug_lookup_method (method);
4720 loc = mono_debug_method_lookup_location (minfo, sp->il_offset);
4723 DEBUG_PRINTF (1, "[%p] No line number info for il offset %x, continuing single stepping.\n", (gpointer) (gsize) mono_native_thread_id_get (), sp->il_offset);
4724 ss_req->last_method = method;
4726 } else if (loc && method == ss_req->last_method && loc->row == ss_req->last_line) {
4727 ss_calculate_framecount (tls, ctx);
4728 if (tls->frame_count == req->nframes) { // If the frame has changed we're clearly not on the same source line.
4729 DEBUG_PRINTF (1, "[%p] Same source line (%d), continuing single stepping.\n", (gpointer) (gsize) mono_native_thread_id_get (), loc->row);
4735 ss_req->last_method = method;
4736 ss_req->last_line = loc->row;
4737 mono_debug_free_source_location (loc);
4744 breakpoint_matches_assembly (MonoBreakpoint *bp, MonoAssembly *assembly)
4746 return bp->method && bp->method->klass->image->assembly == assembly;
4750 get_this (StackFrame *frame)
4752 //Logic inspiered by "add_var" method and took out path that happens in async method for getting this
4753 MonoDebugVarInfo *var = frame->jit->this_var;
4754 if ((var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS) != MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET)
4757 guint8 * addr = (guint8 *)mono_arch_context_get_int_reg (&frame->ctx, var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS);
4758 addr += (gint32)var->offset;
4759 return *(MonoObject**)addr;
4762 //This ID is used to figure out if breakpoint hit on resumeOffset belongs to us or not
4763 //since thread probably changed...
4765 get_this_async_id (StackFrame *frame)
4767 return get_objid (get_this (frame));
4771 get_set_notification_method (MonoClass* async_builder_class)
4774 GPtrArray* array = mono_class_get_methods_by_name (async_builder_class, "SetNotificationForWaitCompletion", 0x24, FALSE, FALSE, &error);
4775 mono_error_assert_ok (&error);
4776 g_assert (array->len == 1);
4777 MonoMethod* set_notification_method = (MonoMethod *)g_ptr_array_index (array, 0);
4778 g_ptr_array_free (array, TRUE);
4779 return set_notification_method;
4783 set_set_notification_for_wait_completion_flag (StackFrame *frame)
4785 MonoObject* obj = get_this (frame);
4787 MonoClassField *builder_field = mono_class_get_field_from_name (obj->vtable->klass, "<>t__builder");
4788 g_assert (builder_field);
4789 MonoObject* builder;
4791 builder = mono_field_get_value_object_checked (frame->domain, builder_field, obj, &error);
4792 mono_error_assert_ok (&error);
4796 gboolean arg = TRUE;
4798 mono_runtime_invoke_checked (get_set_notification_method (builder->vtable->klass), mono_object_unbox (builder), args, &error);
4799 mono_error_assert_ok (&error);
4800 mono_field_set_value (obj, builder_field, mono_object_unbox (builder));
4803 static MonoMethod* notify_debugger_of_wait_completion_method_cache = NULL;
4806 get_notify_debugger_of_wait_completion_method (void)
4808 if (notify_debugger_of_wait_completion_method_cache != NULL)
4809 return notify_debugger_of_wait_completion_method_cache;
4811 MonoClass* task_class = mono_class_load_from_name (mono_defaults.corlib, "System.Threading.Tasks", "Task");
4812 GPtrArray* array = mono_class_get_methods_by_name (task_class, "NotifyDebuggerOfWaitCompletion", 0x24, FALSE, FALSE, &error);
4813 mono_error_assert_ok (&error);
4814 g_assert (array->len == 1);
4815 notify_debugger_of_wait_completion_method_cache = (MonoMethod *)g_ptr_array_index (array, 0);
4816 g_ptr_array_free (array, TRUE);
4817 return notify_debugger_of_wait_completion_method_cache;
4821 process_breakpoint (DebuggerTlsData *tls, gboolean from_signal)
4825 int i, j, suspend_policy;
4826 guint32 native_offset;
4828 BreakpointInstance *inst;
4829 GPtrArray *bp_reqs, *ss_reqs_orig, *ss_reqs;
4830 GSList *bp_events = NULL, *ss_events = NULL, *enter_leave_events = NULL;
4831 EventKind kind = EVENT_KIND_BREAKPOINT;
4832 MonoContext *ctx = &tls->restore_state.ctx;
4834 MonoSeqPointInfo *info;
4838 // FIXME: Speed this up
4840 ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
4841 ji = mini_jit_info_table_find (mono_domain_get (), (char*)ip, NULL);
4845 // FIXME: Pass a flag instead to detect this
4846 MonoLMF *lmf = mono_get_lmf ();
4847 MonoInterpFrameHandle *frame;
4849 g_assert (((guint64)lmf->previous_lmf) & 2);
4850 MonoLMFExt *ext = (MonoLMFExt*)lmf;
4852 g_assert (ext->interp_exit);
4853 frame = ext->interp_exit_data;
4854 ji = mono_interp_frame_get_jit_info (frame);
4855 ip = mono_interp_frame_get_ip (frame);
4858 g_assert (ji && !ji->is_trampoline);
4859 method = jinfo_get_method (ji);
4861 /* Compute the native offset of the breakpoint from the ip */
4862 native_offset = ip - (guint8*)ji->code_start;
4865 * Skip the instruction causing the breakpoint signal.
4868 mono_arch_skip_breakpoint (ctx, ji);
4870 if (method->wrapper_type || tls->disable_breakpoints)
4873 bp_reqs = g_ptr_array_new ();
4874 ss_reqs = g_ptr_array_new ();
4875 ss_reqs_orig = g_ptr_array_new ();
4877 mono_loader_lock ();
4880 * The ip points to the instruction causing the breakpoint event, which is after
4881 * the offset recorded in the seq point map, so find the prev seq point before ip.
4883 found_sp = mono_find_prev_seq_point_for_native_offset (mono_domain_get (), method, native_offset, &info, &sp);
4886 no_seq_points_found (method, native_offset);
4888 g_assert (found_sp);
4890 DEBUG_PRINTF (1, "[%p] Breakpoint hit, method=%s, ip=%p, [il=0x%x,native=0x%x].\n", (gpointer) (gsize) mono_native_thread_id_get (), method->name, ip, sp.il_offset, native_offset);
4893 for (i = 0; i < breakpoints->len; ++i) {
4894 bp = (MonoBreakpoint *)g_ptr_array_index (breakpoints, i);
4899 for (j = 0; j < bp->children->len; ++j) {
4900 inst = (BreakpointInstance *)g_ptr_array_index (bp->children, j);
4901 if (inst->ji == ji && inst->il_offset == sp.il_offset && inst->native_offset == sp.native_offset) {
4902 if (bp->req->event_kind == EVENT_KIND_STEP) {
4903 g_ptr_array_add (ss_reqs_orig, bp->req);
4905 g_ptr_array_add (bp_reqs, bp->req);
4910 if (bp_reqs->len == 0 && ss_reqs_orig->len == 0) {
4911 /* Maybe a method entry/exit event */
4912 if (sp.il_offset == METHOD_ENTRY_IL_OFFSET)
4913 kind = EVENT_KIND_METHOD_ENTRY;
4914 else if (sp.il_offset == METHOD_EXIT_IL_OFFSET)
4915 kind = EVENT_KIND_METHOD_EXIT;
4918 /* Process single step requests */
4919 for (i = 0; i < ss_reqs_orig->len; ++i) {
4920 EventRequest *req = (EventRequest *)g_ptr_array_index (ss_reqs_orig, i);
4921 SingleStepReq *ss_req = (SingleStepReq *)req->info;
4924 //if we hit async_stepout_method, it's our no matter which thread
4925 if ((ss_req->async_stepout_method != method) && (ss_req->async_id || mono_thread_internal_current () != ss_req->thread)) {
4926 //We have different thread and we don't have async stepping in progress
4927 //it's breakpoint in parallel thread, ignore it
4928 if (ss_req->async_id == 0)
4931 tls->context.valid = FALSE;
4932 tls->async_state.valid = FALSE;
4933 invalidate_frames (tls);
4934 ss_calculate_framecount(tls, ctx);
4935 //make sure we have enough data to get current async method instance id
4936 if (tls->frame_count == 0 || !ensure_jit (tls->frames [0]))
4939 //Check method is async before calling get_this_async_id
4940 MonoDebugMethodAsyncInfo* asyncMethod = mono_debug_lookup_method_async_debug_info (method);
4944 mono_debug_free_method_async_debug_info (asyncMethod);
4946 //breakpoint was hit in parallelly executing async method, ignore it
4947 if (ss_req->async_id != get_this_async_id (tls->frames [0]))
4951 //Update stepping request to new thread/frame_count that we are continuing on
4952 //so continuing with normal stepping works as expected
4953 if (ss_req->async_stepout_method || ss_req->async_id) {
4954 tls->context.valid = FALSE;
4955 tls->async_state.valid = FALSE;
4956 invalidate_frames (tls);
4957 ss_calculate_framecount (tls, ctx);
4958 ss_req->thread = mono_thread_internal_current ();
4959 ss_req->nframes = tls->frame_count;
4962 hit = ss_update (ss_req, ji, &sp, tls, ctx, method);
4964 g_ptr_array_add (ss_reqs, req);
4966 /* Start single stepping again from the current sequence point */
4967 ss_start (ss_req, method, &sp, info, ctx, tls, FALSE, NULL, 0);
4970 if (ss_reqs->len > 0)
4971 ss_events = create_event_list (EVENT_KIND_STEP, ss_reqs, ji, NULL, &suspend_policy);
4972 if (bp_reqs->len > 0)
4973 bp_events = create_event_list (EVENT_KIND_BREAKPOINT, bp_reqs, ji, NULL, &suspend_policy);
4974 if (kind != EVENT_KIND_BREAKPOINT)
4975 enter_leave_events = create_event_list (kind, NULL, ji, NULL, &suspend_policy);
4977 mono_loader_unlock ();
4979 g_ptr_array_free (bp_reqs, TRUE);
4980 g_ptr_array_free (ss_reqs, TRUE);
4983 * FIXME: The first event will suspend, so the second will only be sent after the
4987 process_event (EVENT_KIND_STEP, method, 0, ctx, ss_events, suspend_policy);
4989 process_event (kind, method, 0, ctx, bp_events, suspend_policy);
4990 if (enter_leave_events)
4991 process_event (kind, method, 0, ctx, enter_leave_events, suspend_policy);
4994 /* Process a breakpoint/single step event after resuming from a signal handler */
4996 process_signal_event (void (*func) (DebuggerTlsData*, gboolean))
4998 DebuggerTlsData *tls;
4999 MonoThreadUnwindState orig_restore_state;
5002 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
5003 /* Have to save/restore the restore_ctx as we can be called recursively during invokes etc. */
5004 memcpy (&orig_restore_state, &tls->restore_state, sizeof (MonoThreadUnwindState));
5005 mono_thread_state_init_from_monoctx (&tls->restore_state, &tls->handler_ctx);
5009 /* This is called when resuming from a signal handler, so it shouldn't return */
5010 memcpy (&ctx, &tls->restore_state.ctx, sizeof (MonoContext));
5011 memcpy (&tls->restore_state, &orig_restore_state, sizeof (MonoThreadUnwindState));
5012 mono_restore_context (&ctx);
5013 g_assert_not_reached ();
5017 process_breakpoint_from_signal (void)
5019 process_signal_event (process_breakpoint);
5023 resume_from_signal_handler (void *sigctx, void *func)
5025 DebuggerTlsData *tls;
5028 /* Save the original context in TLS */
5029 // FIXME: This might not work on an altstack ?
5030 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
5032 fprintf (stderr, "Thread %p is not attached to the JIT.\n", (gpointer) (gsize) mono_native_thread_id_get ());
5035 // FIXME: MonoContext usually doesn't include the fp registers, so these are
5036 // clobbered by a single step/breakpoint event. If this turns out to be a problem,
5037 // clob:c could be added to op_seq_point.
5039 mono_sigctx_to_monoctx (sigctx, &ctx);
5040 memcpy (&tls->handler_ctx, &ctx, sizeof (MonoContext));
5041 #ifdef MONO_ARCH_HAVE_SETUP_RESUME_FROM_SIGNAL_HANDLER_CTX
5042 mono_arch_setup_resume_sighandler_ctx (&ctx, func);
5044 MONO_CONTEXT_SET_IP (&ctx, func);
5046 mono_monoctx_to_sigctx (&ctx, sigctx);
5048 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
5049 mono_ppc_set_func_into_sigctx (sigctx, func);
5054 mono_debugger_agent_breakpoint_hit (void *sigctx)
5057 * We are called from a signal handler, and running code there causes all kinds of
5058 * problems, like the original signal is disabled, libgc can't handle altstack, etc.
5059 * So set up the signal context to return to the real breakpoint handler function.
5061 resume_from_signal_handler (sigctx, process_breakpoint_from_signal);
5070 user_break_cb (StackFrameInfo *frame, MonoContext *ctx, gpointer user_data)
5072 UserBreakCbData *data = user_data;
5074 if (frame->type == FRAME_TYPE_INTERP_TO_MANAGED) {
5078 if (frame->managed) {
5088 * Called by System.Diagnostics.Debugger:Break ().
5091 mono_debugger_agent_user_break (void)
5093 if (agent_config.enabled) {
5097 UserBreakCbData data;
5099 memset (&data, 0, sizeof (UserBreakCbData));
5102 /* Obtain a context */
5103 MONO_CONTEXT_SET_IP (&ctx, NULL);
5104 mono_walk_stack_with_ctx (user_break_cb, NULL, (MonoUnwindOptions)0, &data);
5105 g_assert (data.found);
5107 mono_loader_lock ();
5108 events = create_event_list (EVENT_KIND_USER_BREAK, NULL, NULL, NULL, &suspend_policy);
5109 mono_loader_unlock ();
5111 process_event (EVENT_KIND_USER_BREAK, NULL, 0, &ctx, events, suspend_policy);
5112 } else if (debug_options.native_debugger_break) {
5118 ss_depth_to_string (StepDepth depth)
5121 case STEP_DEPTH_OVER:
5123 case STEP_DEPTH_OUT:
5125 case STEP_DEPTH_INTO:
5128 g_assert_not_reached ();
5134 process_single_step_inner (DebuggerTlsData *tls, gboolean from_signal)
5139 int il_offset, suspend_policy;
5142 MonoContext *ctx = &tls->restore_state.ctx;
5145 MonoSeqPointInfo *info;
5147 /* Skip the instruction causing the single step */
5149 mono_arch_skip_single_step (ctx);
5151 if (suspend_count > 0) {
5152 /* Fastpath during invokes, see in process_suspend () */
5153 if (suspend_count - tls->resume_count == 0)
5155 process_suspend (tls, ctx);
5160 // FIXME: A suspend race
5163 if (mono_thread_internal_current () != ss_req->thread)
5166 ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
5168 ji = get_top_method_ji (ip, &domain, (gpointer*)&ip);
5169 g_assert (ji && !ji->is_trampoline);
5171 if (log_level > 0) {
5172 DEBUG_PRINTF (1, "[%p] Single step event (depth=%s) at %s (%p)[0x%x], sp %p, last sp %p\n", (gpointer) (gsize) mono_native_thread_id_get (), ss_depth_to_string (ss_req->depth), mono_method_full_name (jinfo_get_method (ji), TRUE), MONO_CONTEXT_GET_IP (ctx), (int)((guint8*)MONO_CONTEXT_GET_IP (ctx) - (guint8*)ji->code_start), MONO_CONTEXT_GET_SP (ctx), ss_req->last_sp);
5175 method = jinfo_get_method (ji);
5178 if (method->wrapper_type && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
5183 * Stopping in memset makes half-initialized vtypes visible.
5184 * Stopping in memcpy makes half-copied vtypes visible.
5186 if (method->klass == mono_defaults.string_class && (!strcmp (method->name, "memset") || strstr (method->name, "memcpy")))
5190 * This could be in ss_update method, but mono_find_next_seq_point_for_native_offset is pretty expensive method,
5191 * hence we prefer this check here.
5193 if (ss_req->user_assemblies) {
5194 gboolean found = FALSE;
5195 for (int k = 0; ss_req->user_assemblies[k]; k++)
5196 if (ss_req->user_assemblies[k] == method->klass->image->assembly) {
5206 * The ip points to the instruction causing the single step event, which is before
5207 * the offset recorded in the seq point map, so find the next seq point after ip.
5209 if (!mono_find_next_seq_point_for_native_offset (domain, method, (guint8*)ip - (guint8*)ji->code_start, &info, &sp)) {
5210 g_assert_not_reached ();
5214 il_offset = sp.il_offset;
5216 if (!ss_update (ss_req, ji, &sp, tls, ctx, method))
5219 /* Start single stepping again from the current sequence point */
5220 ss_start (ss_req, method, &sp, info, ctx, tls, FALSE, NULL, 0);
5222 if ((ss_req->filter & STEP_FILTER_STATIC_CTOR) &&
5223 (method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
5224 !strcmp (method->name, ".cctor"))
5227 // FIXME: Has to lock earlier
5229 reqs = g_ptr_array_new ();
5231 mono_loader_lock ();
5233 g_ptr_array_add (reqs, ss_req->req);
5235 events = create_event_list (EVENT_KIND_STEP, reqs, ji, NULL, &suspend_policy);
5237 g_ptr_array_free (reqs, TRUE);
5239 mono_loader_unlock ();
5241 process_event (EVENT_KIND_STEP, jinfo_get_method (ji), il_offset, ctx, events, suspend_policy);
5245 process_single_step (void)
5247 process_signal_event (process_single_step_inner);
5251 * mono_debugger_agent_single_step_event:
5253 * Called from a signal handler to handle a single step event.
5256 mono_debugger_agent_single_step_event (void *sigctx)
5258 /* Resume to process_single_step through the signal context */
5260 // FIXME: Since step out/over is implemented using step in, the step in case should
5261 // be as fast as possible. Move the relevant code from process_single_step_inner ()
5264 if (is_debugger_thread ()) {
5266 * This could happen despite our best effors when the runtime calls
5267 * assembly/type resolve hooks.
5268 * FIXME: Breakpoints too.
5272 mono_sigctx_to_monoctx (sigctx, &ctx);
5273 mono_arch_skip_single_step (&ctx);
5274 mono_monoctx_to_sigctx (&ctx, sigctx);
5278 resume_from_signal_handler (sigctx, process_single_step);
5282 debugger_agent_single_step_from_context (MonoContext *ctx)
5284 DebuggerTlsData *tls;
5285 MonoThreadUnwindState orig_restore_state;
5287 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
5288 /* Fastpath during invokes, see in process_suspend () */
5289 if (tls && suspend_count && suspend_count - tls->resume_count == 0)
5292 if (is_debugger_thread ())
5297 /* Have to save/restore the restore_ctx as we can be called recursively during invokes etc. */
5298 memcpy (&orig_restore_state, &tls->restore_state, sizeof (MonoThreadUnwindState));
5299 mono_thread_state_init_from_monoctx (&tls->restore_state, ctx);
5300 memcpy (&tls->handler_ctx, ctx, sizeof (MonoContext));
5302 process_single_step_inner (tls, FALSE);
5304 memcpy (ctx, &tls->restore_state.ctx, sizeof (MonoContext));
5305 memcpy (&tls->restore_state, &orig_restore_state, sizeof (MonoThreadUnwindState));
5309 debugger_agent_breakpoint_from_context (MonoContext *ctx)
5311 DebuggerTlsData *tls;
5312 MonoThreadUnwindState orig_restore_state;
5315 if (is_debugger_thread ())
5318 orig_ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
5319 MONO_CONTEXT_SET_IP (ctx, orig_ip - 1);
5321 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
5323 memcpy (&orig_restore_state, &tls->restore_state, sizeof (MonoThreadUnwindState));
5324 mono_thread_state_init_from_monoctx (&tls->restore_state, ctx);
5325 memcpy (&tls->handler_ctx, ctx, sizeof (MonoContext));
5327 process_breakpoint (tls, FALSE);
5329 memcpy (ctx, &tls->restore_state.ctx, sizeof (MonoContext));
5330 memcpy (&tls->restore_state, &orig_restore_state, sizeof (MonoThreadUnwindState));
5331 if (MONO_CONTEXT_GET_IP (ctx) == orig_ip - 1)
5332 MONO_CONTEXT_SET_IP (ctx, orig_ip);
5336 * start_single_stepping:
5338 * Turn on single stepping. Can be called multiple times, for example,
5339 * by a single step event request + a suspend.
5342 start_single_stepping (void)
5344 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
5345 int val = InterlockedIncrement (&ss_count);
5348 mono_arch_start_single_stepping ();
5349 mono_interp_start_single_stepping ();
5352 g_assert_not_reached ();
5357 stop_single_stepping (void)
5359 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
5360 int val = InterlockedDecrement (&ss_count);
5363 mono_arch_stop_single_stepping ();
5364 mono_interp_stop_single_stepping ();
5367 g_assert_not_reached ();
5374 * Stop the single stepping operation given by SS_REQ.
5377 ss_stop (SingleStepReq *ss_req)
5382 for (l = ss_req->bps; l; l = l->next) {
5383 clear_breakpoint ((MonoBreakpoint *)l->data);
5385 g_slist_free (ss_req->bps);
5389 ss_req->async_id = 0;
5390 ss_req->async_stepout_method = NULL;
5391 if (ss_req->global) {
5392 stop_single_stepping ();
5393 ss_req->global = FALSE;
5400 * Reject breakpoint if it is a duplicate of one already in list or hash table.
5403 ss_bp_is_unique (GSList *bps, GHashTable *ss_req_bp_cache, MonoMethod *method, guint32 il_offset)
5405 if (ss_req_bp_cache) {
5406 MonoBreakpoint dummy = {method, il_offset, NULL, NULL};
5407 return !g_hash_table_lookup (ss_req_bp_cache, &dummy);
5409 for (GSList *l = bps; l; l = l->next) {
5410 MonoBreakpoint *bp = (MonoBreakpoint *)l->data;
5411 if (bp->method == method && bp->il_offset == il_offset)
5420 * GHashTable equality for a MonoBreakpoint (only care about method and il_offset fields)
5423 ss_bp_eq (gconstpointer ka, gconstpointer kb)
5425 const MonoBreakpoint *s1 = (const MonoBreakpoint *)ka;
5426 const MonoBreakpoint *s2 = (const MonoBreakpoint *)kb;
5427 return (s1->method == s2->method && s1->il_offset == s2->il_offset) ? 1 : 0;
5433 * GHashTable hash for a MonoBreakpoint (only care about method and il_offset fields)
5436 ss_bp_hash (gconstpointer data)
5438 const MonoBreakpoint *s = (const MonoBreakpoint *)data;
5439 guint hash = (guint) (uintptr_t) s->method;
5440 hash ^= ((guint)s->il_offset) << 16; // Assume low bits are more interesting
5441 hash ^= ((guint)s->il_offset) >> 16;
5445 #define MAX_LINEAR_SCAN_BPS 7
5450 * Create a new breakpoint and add it to a step request.
5451 * Will adjust the bp count and cache used by ss_start.
5454 ss_bp_add_one (SingleStepReq *ss_req, int *ss_req_bp_count, GHashTable **ss_req_bp_cache,
5455 MonoMethod *method, guint32 il_offset)
5457 // This list is getting too long, switch to using the hash table
5458 if (!*ss_req_bp_cache && *ss_req_bp_count > MAX_LINEAR_SCAN_BPS) {
5459 *ss_req_bp_cache = g_hash_table_new (ss_bp_hash, ss_bp_eq);
5460 for (GSList *l = ss_req->bps; l; l = l->next)
5461 g_hash_table_insert (*ss_req_bp_cache, l->data, l->data);
5464 if (ss_bp_is_unique (ss_req->bps, *ss_req_bp_cache, method, il_offset)) {
5465 // Create and add breakpoint
5466 MonoBreakpoint *bp = set_breakpoint (method, il_offset, ss_req->req, NULL);
5467 ss_req->bps = g_slist_append (ss_req->bps, bp);
5468 if (*ss_req_bp_cache)
5469 g_hash_table_insert (*ss_req_bp_cache, bp, bp);
5470 (*ss_req_bp_count)++;
5472 DEBUG_PRINTF (1, "[dbg] Candidate breakpoint at %s:[il=0x%x] is a duplicate for this step request, will not add.\n", mono_method_full_name (method, TRUE), (int)il_offset);
5477 is_last_non_empty (SeqPoint* sp, MonoSeqPointInfo *info)
5481 SeqPoint* next = g_new (SeqPoint, sp->next_len);
5482 mono_seq_point_init_next (info, *sp, next);
5483 for (int i = 0; i < sp->next_len; i++) {
5484 if (next [i].flags & MONO_SEQ_POINT_FLAG_NONEMPTY_STACK) {
5485 if (!is_last_non_empty (&next [i], info)) {
5501 * Start the single stepping operation given by SS_REQ from the sequence point SP.
5502 * If CTX is not set, then this can target any thread. If CTX is set, then TLS should
5503 * belong to the same thread as CTX.
5504 * If FRAMES is not-null, use that instead of tls->frames for placing breakpoints etc.
5507 ss_start (SingleStepReq *ss_req, MonoMethod *method, SeqPoint* sp, MonoSeqPointInfo *info, MonoContext *ctx, DebuggerTlsData *tls,
5508 gboolean step_to_catch, StackFrame **frames, int nframes)
5510 int i, j, frame_index;
5511 SeqPoint *next_sp, *parent_sp = NULL;
5512 SeqPoint local_sp, local_parent_sp;
5514 MonoSeqPointInfo *parent_info;
5515 MonoMethod *parent_sp_method = NULL;
5516 gboolean enable_global = FALSE;
5518 // When 8 or more entries are in bps, we build a hash table to serve as a set of breakpoints.
5519 // Recreating this on each pass is a little wasteful but at least keeps behavior linear.
5520 int ss_req_bp_count = g_slist_length (ss_req->bps);
5521 GHashTable *ss_req_bp_cache = NULL;
5523 /* Stop the previous operation */
5527 * Implement single stepping using breakpoints if possible.
5529 if (step_to_catch) {
5530 ss_bp_add_one (ss_req, &ss_req_bp_count, &ss_req_bp_cache, method, sp->il_offset);
5534 if (ctx && !frames) {
5535 /* Need parent frames */
5536 if (!tls->context.valid)
5537 mono_thread_state_init_from_monoctx (&tls->context, ctx);
5538 compute_frame_info (tls->thread, tls);
5539 frames = tls->frames;
5540 nframes = tls->frame_count;
5543 MonoDebugMethodAsyncInfo* asyncMethod = mono_debug_lookup_method_async_debug_info (method);
5545 /* Need to stop in catch clauses as well */
5546 for (i = ss_req->depth == STEP_DEPTH_OUT ? 1 : 0; i < nframes; ++i) {
5547 StackFrame *frame = frames [i];
5550 MonoJitInfo *jinfo = frame->ji;
5551 for (j = 0; j < jinfo->num_clauses; ++j) {
5552 // In case of async method we don't want to place breakpoint on last catch handler(which state machine added for whole method)
5553 if (asyncMethod && asyncMethod->num_awaits && i == 0 && j + 1 == jinfo->num_clauses)
5555 MonoJitExceptionInfo *ei = &jinfo->clauses [j];
5557 if (mono_find_next_seq_point_for_native_offset (frame->domain, frame->method, (char*)ei->handler_start - (char*)jinfo->code_start, NULL, &local_sp))
5558 ss_bp_add_one (ss_req, &ss_req_bp_count, &ss_req_bp_cache, frame->method, local_sp.il_offset);
5563 if (asyncMethod && asyncMethod->num_awaits && nframes && ensure_jit (frames [0])) {
5564 //asyncMethod has value and num_awaits > 0, this means we are inside async method with awaits
5566 // Check if we hit yield_offset during normal stepping, because if we did...
5567 // Go into special async stepping mode which places breakpoint on resumeOffset
5568 // of this await call and sets async_id so we can distinguish it from parallel executions
5569 for (i = 0; i < asyncMethod->num_awaits; i++) {
5570 if (sp->il_offset == asyncMethod->yield_offsets [i]) {
5571 ss_req->async_id = get_this_async_id (frames [0]);
5572 ss_bp_add_one (ss_req, &ss_req_bp_count, &ss_req_bp_cache, method, asyncMethod->resume_offsets [i]);
5573 if (ss_req_bp_cache)
5574 g_hash_table_destroy (ss_req_bp_cache);
5575 mono_debug_free_method_async_debug_info (asyncMethod);
5579 //If we are at end of async method and doing step-in or step-over...
5580 //Switch to step-out, so whole NotifyDebuggerOfWaitCompletion magic happens...
5581 if (is_last_non_empty (sp, info)) {
5582 ss_req->depth = STEP_DEPTH_OUT;//setting depth to step-out is important, don't inline IF, because code later depends on this
5584 if (ss_req->depth == STEP_DEPTH_OUT) {
5585 set_set_notification_for_wait_completion_flag (frames [0]);
5586 ss_req->async_id = get_this_async_id (frames [0]);
5587 ss_req->async_stepout_method = get_notify_debugger_of_wait_completion_method ();
5588 ss_bp_add_one (ss_req, &ss_req_bp_count, &ss_req_bp_cache, ss_req->async_stepout_method, 0);
5589 if (ss_req_bp_cache)
5590 g_hash_table_destroy (ss_req_bp_cache);
5591 mono_debug_free_method_async_debug_info (asyncMethod);
5597 mono_debug_free_method_async_debug_info (asyncMethod);
5600 * Find the first sequence point in the current or in a previous frame which
5601 * is not the last in its method.
5603 if (ss_req->depth == STEP_DEPTH_OUT) {
5604 /* Ignore seq points in current method */
5605 while (frame_index < nframes) {
5606 StackFrame *frame = frames [frame_index];
5608 method = frame->method;
5609 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &info, &local_sp);
5610 sp = (found_sp)? &local_sp : NULL;
5612 if (sp && sp->next_len != 0)
5615 // There could be method calls before the next seq point in the caller when using nested calls
5616 //enable_global = TRUE;
5618 if (sp && sp->next_len == 0) {
5620 while (frame_index < nframes) {
5621 StackFrame *frame = frames [frame_index];
5623 method = frame->method;
5624 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &info, &local_sp);
5625 sp = (found_sp)? &local_sp : NULL;
5626 if (sp && sp->next_len != 0)
5632 /* Have to put a breakpoint into a parent frame since the seq points might not cover all control flow out of the method */
5633 while (frame_index < nframes) {
5634 StackFrame *frame = frames [frame_index];
5636 parent_sp_method = frame->method;
5637 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &parent_info, &local_parent_sp);
5638 parent_sp = found_sp ? &local_parent_sp : NULL;
5639 if (found_sp && parent_sp->next_len != 0)
5647 if (sp && sp->next_len > 0) {
5648 SeqPoint* next = g_new(SeqPoint, sp->next_len);
5650 mono_seq_point_init_next (info, *sp, next);
5651 for (i = 0; i < sp->next_len; i++) {
5654 ss_bp_add_one (ss_req, &ss_req_bp_count, &ss_req_bp_cache, method, next_sp->il_offset);
5660 SeqPoint* next = g_new(SeqPoint, parent_sp->next_len);
5662 mono_seq_point_init_next (parent_info, *parent_sp, next);
5663 for (i = 0; i < parent_sp->next_len; i++) {
5666 ss_bp_add_one (ss_req, &ss_req_bp_count, &ss_req_bp_cache, parent_sp_method, next_sp->il_offset);
5671 if (ss_req->nframes == 0)
5672 ss_req->nframes = nframes;
5674 if ((ss_req->depth == STEP_DEPTH_OVER) && (!sp && !parent_sp)) {
5675 DEBUG_PRINTF (1, "[dbg] No parent frame for step over, transition to step into.\n");
5677 * This is needed since if we leave managed code, and later return to it, step over
5678 * is not going to stop.
5679 * This approach is a bit ugly, since we change the step depth, but it only affects
5680 * clients who reuse the same step request, and only in this special case.
5682 ss_req->depth = STEP_DEPTH_INTO;
5685 if (ss_req->depth == STEP_DEPTH_INTO) {
5686 /* Enable global stepping so we stop at method entry too */
5687 enable_global = TRUE;
5691 * The ctx/frame info computed above will become invalid when we continue.
5693 tls->context.valid = FALSE;
5694 tls->async_state.valid = FALSE;
5695 invalidate_frames (tls);
5698 if (enable_global) {
5699 DEBUG_PRINTF (1, "[dbg] Turning on global single stepping.\n");
5700 ss_req->global = TRUE;
5701 start_single_stepping ();
5702 } else if (!ss_req->bps) {
5703 DEBUG_PRINTF (1, "[dbg] Turning on global single stepping.\n");
5704 ss_req->global = TRUE;
5705 start_single_stepping ();
5707 ss_req->global = FALSE;
5710 if (ss_req_bp_cache)
5711 g_hash_table_destroy (ss_req_bp_cache);
5715 * Start single stepping of thread THREAD
5718 ss_create (MonoInternalThread *thread, StepSize size, StepDepth depth, StepFilter filter, EventRequest *req)
5720 DebuggerTlsData *tls;
5721 MonoSeqPointInfo *info = NULL;
5722 SeqPoint *sp = NULL;
5725 MonoMethod *method = NULL;
5726 MonoDebugMethodInfo *minfo;
5727 gboolean step_to_catch = FALSE;
5728 gboolean set_ip = FALSE;
5729 StackFrame **frames = NULL;
5732 if (suspend_count == 0)
5733 return ERR_NOT_SUSPENDED;
5735 wait_for_suspend ();
5737 // FIXME: Multiple requests
5739 DEBUG_PRINTF (0, "Received a single step request while the previous one was still active.\n");
5740 return ERR_NOT_IMPLEMENTED;
5743 DEBUG_PRINTF (1, "[dbg] Starting single step of thread %p (depth=%s).\n", thread, ss_depth_to_string (depth));
5745 ss_req = g_new0 (SingleStepReq, 1);
5747 ss_req->thread = thread;
5748 ss_req->size = size;
5749 ss_req->depth = depth;
5750 ss_req->filter = filter;
5753 for (int i = 0; i < req->nmodifiers; i++) {
5754 if (req->modifiers[i].kind == MOD_KIND_ASSEMBLY_ONLY) {
5755 ss_req->user_assemblies = req->modifiers[i].data.assemblies;
5760 mono_loader_lock ();
5761 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
5762 mono_loader_unlock ();
5764 if (!tls->context.valid) {
5765 DEBUG_PRINTF (1, "Received a single step request on a thread with no managed frames.");
5766 return ERR_INVALID_ARGUMENT;
5769 if (tls->restore_state.valid && MONO_CONTEXT_GET_IP (&tls->context.ctx) != MONO_CONTEXT_GET_IP (&tls->restore_state.ctx)) {
5771 * Need to start single stepping from restore_state and not from the current state
5774 frames = compute_frame_info_from (thread, tls, &tls->restore_state, &nframes);
5777 ss_req->start_sp = ss_req->last_sp = MONO_CONTEXT_GET_SP (&tls->context.ctx);
5779 if (tls->catch_state.valid) {
5781 StackFrameInfo frame;
5782 MonoContext new_ctx;
5783 MonoLMF *lmf = NULL;
5786 * We are stopped at a throw site. Stepping should go to the catch site.
5789 /* Find the the jit info for the catch context */
5790 res = mono_find_jit_info_ext (
5791 (MonoDomain *)tls->catch_state.unwind_data [MONO_UNWIND_DATA_DOMAIN],
5792 (MonoJitTlsData *)((MonoThreadInfo*)thread->thread_info)->jit_data,
5793 NULL, &tls->catch_state.ctx, &new_ctx, NULL, &lmf, NULL, &frame);
5795 g_assert (frame.type == FRAME_TYPE_MANAGED);
5798 * Find the seq point corresponding to the landing site ip, which is the first seq
5801 found_sp = mono_find_next_seq_point_for_native_offset (frame.domain, frame.method, frame.native_offset, &info, &local_sp);
5802 sp = (found_sp)? &local_sp : NULL;
5804 no_seq_points_found (frame.method, frame.native_offset);
5807 method = frame.method;
5809 step_to_catch = TRUE;
5810 /* This make sure the seq point is not skipped by process_single_step () */
5811 ss_req->last_sp = NULL;
5814 if (!step_to_catch) {
5815 StackFrame *frame = NULL;
5818 if (frames && nframes)
5821 compute_frame_info (thread, tls);
5823 if (tls->frame_count)
5824 frame = tls->frames [0];
5827 if (ss_req->size == STEP_SIZE_LINE) {
5829 ss_req->last_method = frame->method;
5830 ss_req->last_line = -1;
5832 minfo = mono_debug_lookup_method (frame->method);
5833 if (minfo && frame->il_offset != -1) {
5834 MonoDebugSourceLocation *loc = mono_debug_method_lookup_location (minfo, frame->il_offset);
5837 ss_req->last_line = loc->row;
5845 if (!method && frame->il_offset != -1) {
5846 /* FIXME: Sort the table and use a binary search */
5847 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &info, &local_sp);
5848 sp = (found_sp)? &local_sp : NULL;
5850 no_seq_points_found (frame->method, frame->native_offset);
5852 method = frame->method;
5857 ss_req->start_method = method;
5859 ss_start (ss_req, method, sp, info, set_ip ? &tls->restore_state.ctx : &tls->context.ctx, tls, step_to_catch, frames, nframes);
5862 free_frames (frames, nframes);
5868 ss_destroy (SingleStepReq *req)
5871 g_assert (ss_req == req);
5880 ss_clear_for_assembly (SingleStepReq *req, MonoAssembly *assembly)
5883 gboolean found = TRUE;
5887 for (l = ss_req->bps; l; l = l->next) {
5888 if (breakpoint_matches_assembly ((MonoBreakpoint *)l->data, assembly)) {
5889 clear_breakpoint ((MonoBreakpoint *)l->data);
5890 ss_req->bps = g_slist_delete_link (ss_req->bps, l);
5899 * Called from metadata by the icall for System.Diagnostics.Debugger:Log ().
5902 mono_debugger_agent_debug_log (int level, MonoString *category, MonoString *message)
5909 if (!agent_config.enabled)
5912 mono_loader_lock ();
5913 events = create_event_list (EVENT_KIND_USER_LOG, NULL, NULL, NULL, &suspend_policy);
5914 mono_loader_unlock ();
5919 ei.category = mono_string_to_utf8_checked (category, &error);
5920 mono_error_cleanup (&error);
5924 ei.message = mono_string_to_utf8_checked (message, &error);
5925 mono_error_cleanup (&error);
5928 process_event (EVENT_KIND_USER_LOG, &ei, 0, NULL, events, suspend_policy);
5930 g_free (ei.category);
5931 g_free (ei.message);
5935 mono_debugger_agent_debug_log_is_enabled (void)
5937 /* Treat this as true even if there is no event request for EVENT_KIND_USER_LOG */
5938 return agent_config.enabled;
5941 #if defined(HOST_ANDROID) || defined(TARGET_ANDROID)
5943 mono_debugger_agent_unhandled_exception (MonoException *exc)
5952 memset (&ei, 0, sizeof (EventInfo));
5953 ei.exc = (MonoObject*)exc;
5955 mono_loader_lock ();
5956 events = create_event_list (EVENT_KIND_EXCEPTION, NULL, NULL, &ei, &suspend_policy);
5957 mono_loader_unlock ();
5959 process_event (EVENT_KIND_EXCEPTION, &ei, 0, NULL, events, suspend_policy);
5964 mono_debugger_agent_handle_exception (MonoException *exc, MonoContext *throw_ctx,
5965 MonoContext *catch_ctx)
5967 int i, j, suspend_policy;
5969 MonoJitInfo *ji, *catch_ji;
5971 DebuggerTlsData *tls = NULL;
5973 if (thread_to_tls != NULL) {
5974 MonoInternalThread *thread = mono_thread_internal_current ();
5976 mono_loader_lock ();
5977 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
5978 mono_loader_unlock ();
5980 if (tls && tls->abort_requested)
5982 if (tls && tls->disable_breakpoints)
5986 memset (&ei, 0, sizeof (EventInfo));
5988 /* Just-In-Time debugging */
5990 if (agent_config.onuncaught && !inited) {
5991 finish_agent_init (FALSE);
5994 * Send an unsolicited EXCEPTION event with a dummy request id.
5996 events = g_slist_append (NULL, GUINT_TO_POINTER (0xffffff));
5997 ei.exc = (MonoObject*)exc;
5998 process_event (EVENT_KIND_EXCEPTION, &ei, 0, throw_ctx, events, SUSPEND_POLICY_ALL);
6001 } else if (agent_config.onthrow && !inited) {
6003 gboolean found = FALSE;
6005 for (l = agent_config.onthrow; l; l = l->next) {
6006 char *ex_type = (char *)l->data;
6007 char *f = mono_type_full_name (&exc->object.vtable->klass->byval_arg);
6009 if (!strcmp (ex_type, "") || !strcmp (ex_type, f))
6016 finish_agent_init (FALSE);
6019 * Send an unsolicited EXCEPTION event with a dummy request id.
6021 events = g_slist_append (NULL, GUINT_TO_POINTER (0xffffff));
6022 ei.exc = (MonoObject*)exc;
6023 process_event (EVENT_KIND_EXCEPTION, &ei, 0, throw_ctx, events, SUSPEND_POLICY_ALL);
6031 ji = mini_jit_info_table_find (mono_domain_get (), (char *)MONO_CONTEXT_GET_IP (throw_ctx), NULL);
6033 catch_ji = mini_jit_info_table_find (mono_domain_get (), (char *)MONO_CONTEXT_GET_IP (catch_ctx), NULL);
6037 ei.exc = (MonoObject*)exc;
6038 ei.caught = catch_ctx != NULL;
6040 mono_loader_lock ();
6042 /* Treat exceptions which are caught in non-user code as unhandled */
6043 for (i = 0; i < event_requests->len; ++i) {
6044 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
6045 if (req->event_kind != EVENT_KIND_EXCEPTION)
6048 for (j = 0; j < req->nmodifiers; ++j) {
6049 Modifier *mod = &req->modifiers [j];
6051 if (mod->kind == MOD_KIND_ASSEMBLY_ONLY && catch_ji) {
6053 gboolean found = FALSE;
6054 MonoAssembly **assemblies = mod->data.assemblies;
6057 for (k = 0; assemblies [k]; ++k)
6058 if (assemblies [k] == jinfo_get_method (catch_ji)->klass->image->assembly)
6067 events = create_event_list (EVENT_KIND_EXCEPTION, NULL, ji, &ei, &suspend_policy);
6068 mono_loader_unlock ();
6070 if (tls && ei.caught && catch_ctx) {
6071 memset (&tls->catch_state, 0, sizeof (tls->catch_state));
6072 tls->catch_state.ctx = *catch_ctx;
6073 tls->catch_state.unwind_data [MONO_UNWIND_DATA_DOMAIN] = mono_domain_get ();
6074 tls->catch_state.valid = TRUE;
6077 process_event (EVENT_KIND_EXCEPTION, &ei, 0, throw_ctx, events, suspend_policy);
6080 tls->catch_state.valid = FALSE;
6084 mono_debugger_agent_begin_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
6086 DebuggerTlsData *tls;
6091 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
6096 * We're about to invoke an exception filter during the first pass of exception handling.
6098 * 'ctx' is the context that'll get passed to the filter ('call_filter (ctx, ei->data.filter)'),
6099 * 'orig_ctx' is the context where the exception has been thrown.
6102 * See mcs/class/Mono.Debugger.Soft/Tests/dtest-excfilter.il for an example.
6104 * If we're stopped in Filter(), normal stack unwinding would first unwind to
6105 * the call site (line 37) and then continue to Main(), but it would never
6106 * include the throw site (line 32).
6108 * Since exception filters are invoked during the first pass of exception handling,
6109 * the stack frames of the throw site are still intact, so we should include them
6112 * We do this here by saving the context of the throw site in 'tls->filter_state'.
6114 * Exception filters are used by MonoDroid, where we want to stop inside a call filter,
6115 * but report the location of the 'throw' to the user.
6119 g_assert (mono_thread_state_init_from_monoctx (&tls->filter_state, orig_ctx));
6123 mono_debugger_agent_end_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
6125 DebuggerTlsData *tls;
6130 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
6134 tls->filter_state.valid = FALSE;
6138 * buffer_add_value_full:
6140 * Add the encoding of the value at ADDR described by T to the buffer.
6141 * AS_VTYPE determines whenever to treat primitive types as primitive types or
6145 buffer_add_value_full (Buffer *buf, MonoType *t, void *addr, MonoDomain *domain,
6146 gboolean as_vtype, GHashTable *parent_vtypes)
6149 gboolean boxed_vtype = FALSE;
6152 if (!(*(void**)addr)) {
6153 /* This can happen with compiler generated locals */
6154 //printf ("%s\n", mono_type_full_name (t));
6155 buffer_add_byte (buf, VALUE_TYPE_ID_NULL);
6158 g_assert (*(void**)addr);
6159 addr = *(void**)addr;
6164 case MONO_TYPE_BOOLEAN:
6167 case MONO_TYPE_CHAR:
6187 case MONO_TYPE_VOID:
6188 buffer_add_byte (buf, t->type);
6190 case MONO_TYPE_BOOLEAN:
6193 buffer_add_byte (buf, t->type);
6194 buffer_add_int (buf, *(gint8*)addr);
6196 case MONO_TYPE_CHAR:
6199 buffer_add_byte (buf, t->type);
6200 buffer_add_int (buf, *(gint16*)addr);
6205 buffer_add_byte (buf, t->type);
6206 buffer_add_int (buf, *(gint32*)addr);
6211 buffer_add_byte (buf, t->type);
6212 buffer_add_long (buf, *(gint64*)addr);
6216 /* Treat it as a vtype */
6218 case MONO_TYPE_PTR: {
6219 gssize val = *(gssize*)addr;
6221 buffer_add_byte (buf, t->type);
6222 buffer_add_long (buf, val);
6226 case MONO_TYPE_STRING:
6227 case MONO_TYPE_SZARRAY:
6228 case MONO_TYPE_OBJECT:
6229 case MONO_TYPE_CLASS:
6230 case MONO_TYPE_ARRAY:
6231 obj = *(MonoObject**)addr;
6234 buffer_add_byte (buf, VALUE_TYPE_ID_NULL);
6236 if (obj->vtable->klass->valuetype) {
6237 t = &obj->vtable->klass->byval_arg;
6238 addr = mono_object_unbox (obj);
6241 } else if (obj->vtable->klass->rank) {
6242 buffer_add_byte (buf, obj->vtable->klass->byval_arg.type);
6243 } else if (obj->vtable->klass->byval_arg.type == MONO_TYPE_GENERICINST) {
6244 buffer_add_byte (buf, MONO_TYPE_CLASS);
6246 buffer_add_byte (buf, obj->vtable->klass->byval_arg.type);
6248 buffer_add_objid (buf, obj);
6252 case MONO_TYPE_VALUETYPE:
6253 case MONO_TYPE_TYPEDBYREF: {
6257 MonoClass *klass = mono_class_from_mono_type (t);
6262 * Handle boxed vtypes recursively referencing themselves using fields.
6265 parent_vtypes = g_hash_table_new (NULL, NULL);
6266 vtype_index = GPOINTER_TO_INT (g_hash_table_lookup (parent_vtypes, addr));
6268 if (CHECK_PROTOCOL_VERSION (2, 33)) {
6269 buffer_add_byte (buf, VALUE_TYPE_ID_PARENT_VTYPE);
6270 buffer_add_int (buf, vtype_index - 1);
6272 /* The client can't handle PARENT_VTYPE */
6273 buffer_add_byte (buf, VALUE_TYPE_ID_NULL);
6277 g_hash_table_insert (parent_vtypes, addr, GINT_TO_POINTER (g_hash_table_size (parent_vtypes) + 1));
6281 buffer_add_byte (buf, MONO_TYPE_VALUETYPE);
6282 buffer_add_byte (buf, klass->enumtype);
6283 buffer_add_typeid (buf, domain, klass);
6287 while ((f = mono_class_get_fields (klass, &iter))) {
6288 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC)
6290 if (mono_field_is_deleted (f))
6294 buffer_add_int (buf, nfields);
6297 while ((f = mono_class_get_fields (klass, &iter))) {
6298 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC)
6300 if (mono_field_is_deleted (f))
6302 buffer_add_value_full (buf, f->type, (guint8*)addr + f->offset - sizeof (MonoObject), domain, FALSE, parent_vtypes);
6306 g_hash_table_remove (parent_vtypes, addr);
6307 if (g_hash_table_size (parent_vtypes) == 0) {
6308 g_hash_table_destroy (parent_vtypes);
6309 parent_vtypes = NULL;
6314 case MONO_TYPE_GENERICINST:
6315 if (mono_type_generic_inst_is_valuetype (t)) {
6327 buffer_add_value (Buffer *buf, MonoType *t, void *addr, MonoDomain *domain)
6329 buffer_add_value_full (buf, t, addr, domain, FALSE, NULL);
6333 obj_is_of_type (MonoObject *obj, MonoType *t)
6335 MonoClass *klass = obj->vtable->klass;
6336 if (!mono_class_is_assignable_from (mono_class_from_mono_type (t), klass)) {
6337 if (mono_class_is_transparent_proxy (klass)) {
6338 klass = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
6339 if (mono_class_is_assignable_from (mono_class_from_mono_type (t), klass)) {
6349 decode_value (MonoType *t, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit);
6352 decode_vtype (MonoType *t, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit)
6358 gpointer iter = NULL;
6362 is_enum = decode_byte (buf, &buf, limit);
6363 /* Enums are sent as a normal vtype */
6365 return ERR_NOT_IMPLEMENTED;
6366 klass = decode_typeid (buf, &buf, limit, &d, &err);
6367 if (err != ERR_NONE)
6370 if (t && klass != mono_class_from_mono_type (t)) {
6371 char *name = mono_type_full_name (t);
6372 char *name2 = mono_type_full_name (&klass->byval_arg);
6373 DEBUG_PRINTF (1, "[%p] Expected value of type %s, got %s.\n", (gpointer) (gsize) mono_native_thread_id_get (), name, name2);
6376 return ERR_INVALID_ARGUMENT;
6379 nfields = decode_int (buf, &buf, limit);
6380 while ((f = mono_class_get_fields (klass, &iter))) {
6381 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC)
6383 if (mono_field_is_deleted (f))
6385 err = decode_value (f->type, domain, (guint8*)addr + f->offset - sizeof (MonoObject), buf, &buf, limit);
6386 if (err != ERR_NONE)
6390 g_assert (nfields == 0);
6398 decode_value_internal (MonoType *t, int type, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit)
6402 if (type != t->type && !MONO_TYPE_IS_REFERENCE (t) &&
6403 !(t->type == MONO_TYPE_I && type == MONO_TYPE_VALUETYPE) &&
6404 !(t->type == MONO_TYPE_U && type == MONO_TYPE_VALUETYPE) &&
6405 !(t->type == MONO_TYPE_PTR && type == MONO_TYPE_I8) &&
6406 !(t->type == MONO_TYPE_GENERICINST && type == MONO_TYPE_VALUETYPE) &&
6407 !(t->type == MONO_TYPE_VALUETYPE && type == MONO_TYPE_OBJECT)) {
6408 char *name = mono_type_full_name (t);
6409 DEBUG_PRINTF (1, "[%p] Expected value of type %s, got 0x%0x.\n", (gpointer) (gsize) mono_native_thread_id_get (), name, type);
6411 return ERR_INVALID_ARGUMENT;
6415 case MONO_TYPE_BOOLEAN:
6416 *(guint8*)addr = decode_int (buf, &buf, limit);
6418 case MONO_TYPE_CHAR:
6419 *(gunichar2*)addr = decode_int (buf, &buf, limit);
6422 *(gint8*)addr = decode_int (buf, &buf, limit);
6425 *(guint8*)addr = decode_int (buf, &buf, limit);
6428 *(gint16*)addr = decode_int (buf, &buf, limit);
6431 *(guint16*)addr = decode_int (buf, &buf, limit);
6434 *(gint32*)addr = decode_int (buf, &buf, limit);
6437 *(guint32*)addr = decode_int (buf, &buf, limit);
6440 *(gint64*)addr = decode_long (buf, &buf, limit);
6443 *(guint64*)addr = decode_long (buf, &buf, limit);
6446 *(guint32*)addr = decode_int (buf, &buf, limit);
6449 *(guint64*)addr = decode_long (buf, &buf, limit);
6452 /* We send these as I8, so we get them back as such */
6453 g_assert (type == MONO_TYPE_I8);
6454 *(gssize*)addr = decode_long (buf, &buf, limit);
6456 case MONO_TYPE_GENERICINST:
6457 if (MONO_TYPE_ISSTRUCT (t)) {
6458 /* The client sends these as a valuetype */
6466 /* We send these as vtypes, so we get them back as such */
6467 g_assert (type == MONO_TYPE_VALUETYPE);
6470 case MONO_TYPE_VALUETYPE:
6471 if (type == MONO_TYPE_OBJECT) {
6473 int objid = decode_objid (buf, &buf, limit);
6477 err = get_object (objid, (MonoObject**)&obj);
6478 if (err != ERR_NONE)
6481 return ERR_INVALID_ARGUMENT;
6482 if (obj->vtable->klass != mono_class_from_mono_type (t)) {
6483 DEBUG_PRINTF (1, "Expected type '%s', got object '%s'\n", mono_type_full_name (t), obj->vtable->klass->name);
6484 return ERR_INVALID_ARGUMENT;
6486 memcpy (addr, mono_object_unbox (obj), mono_class_value_size (obj->vtable->klass, NULL));
6488 err = decode_vtype (t, domain, addr, buf, &buf, limit);
6489 if (err != ERR_NONE)
6495 if (MONO_TYPE_IS_REFERENCE (t)) {
6496 if (type == MONO_TYPE_OBJECT) {
6497 int objid = decode_objid (buf, &buf, limit);
6501 err = get_object (objid, (MonoObject**)&obj);
6502 if (err != ERR_NONE)
6506 if (!obj_is_of_type (obj, t)) {
6507 DEBUG_PRINTF (1, "Expected type '%s', got '%s'\n", mono_type_full_name (t), obj->vtable->klass->name);
6508 return ERR_INVALID_ARGUMENT;
6511 if (obj && obj->vtable->domain != domain)
6512 return ERR_INVALID_ARGUMENT;
6514 mono_gc_wbarrier_generic_store (addr, obj);
6515 } else if (type == VALUE_TYPE_ID_NULL) {
6516 *(MonoObject**)addr = NULL;
6517 } else if (type == MONO_TYPE_VALUETYPE) {
6526 /* This can happen when round-tripping boxed vtypes */
6528 * Obtain vtype class.
6529 * Same as the beginning of the handle_vtype case above.
6532 is_enum = decode_byte (buf, &buf, limit);
6534 return ERR_NOT_IMPLEMENTED;
6535 klass = decode_typeid (buf, &buf, limit, &d, &err);
6536 if (err != ERR_NONE)
6539 /* Decode the vtype into a temporary buffer, then box it. */
6540 vtype_buf_size = mono_class_value_size (klass, NULL);
6541 vtype_buf = (guint8 *)g_malloc0 (vtype_buf_size);
6542 g_assert (vtype_buf);
6545 err = decode_vtype (NULL, domain, vtype_buf, buf, &buf, limit);
6546 if (err != ERR_NONE) {
6550 *(MonoObject**)addr = mono_value_box_checked (d, klass, vtype_buf, &error);
6551 mono_error_cleanup (&error);
6554 char *name = mono_type_full_name (t);
6555 DEBUG_PRINTF (1, "[%p] Expected value of type %s, got 0x%0x.\n", (gpointer) (gsize) mono_native_thread_id_get (), name, type);
6557 return ERR_INVALID_ARGUMENT;
6571 decode_value (MonoType *t, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit)
6575 int type = decode_byte (buf, &buf, limit);
6577 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
6578 MonoType *targ = t->data.generic_class->context.class_inst->type_argv [0];
6579 guint8 *nullable_buf;
6582 * First try decoding it as a Nullable`1
6584 err = decode_value_internal (t, type, domain, addr, buf, endbuf, limit);
6585 if (err == ERR_NONE)
6589 * Then try decoding as a primitive value or null.
6591 if (targ->type == type) {
6592 nullable_buf = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (targ)));
6593 err = decode_value_internal (targ, type, domain, nullable_buf, buf, endbuf, limit);
6594 if (err != ERR_NONE) {
6595 g_free (nullable_buf);
6598 MonoObject *boxed = mono_value_box_checked (domain, mono_class_from_mono_type (targ), nullable_buf, &error);
6599 if (!is_ok (&error)) {
6600 mono_error_cleanup (&error);
6601 return ERR_INVALID_OBJECT;
6603 mono_nullable_init (addr, boxed, mono_class_from_mono_type (t));
6604 g_free (nullable_buf);
6607 } else if (type == VALUE_TYPE_ID_NULL) {
6608 mono_nullable_init (addr, NULL, mono_class_from_mono_type (t));
6614 return decode_value_internal (t, type, domain, addr, buf, endbuf, limit);
6618 add_var (Buffer *buf, MonoDebugMethodJitInfo *jit, MonoType *t, MonoDebugVarInfo *var, MonoContext *ctx, MonoDomain *domain, gboolean as_vtype)
6622 guint8 *addr, *gaddr;
6625 flags = var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6626 reg = var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6629 case MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER:
6630 reg_val = mono_arch_context_get_int_reg (ctx, reg);
6632 buffer_add_value_full (buf, t, ®_val, domain, as_vtype, NULL);
6634 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET:
6635 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6636 addr += (gint32)var->offset;
6638 //printf ("[R%d+%d] = %p\n", reg, var->offset, addr);
6640 buffer_add_value_full (buf, t, addr, domain, as_vtype, NULL);
6642 case MONO_DEBUG_VAR_ADDRESS_MODE_DEAD:
6645 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET_INDIR:
6646 case MONO_DEBUG_VAR_ADDRESS_MODE_VTADDR:
6647 /* Same as regoffset, but with an indirection */
6648 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6649 addr += (gint32)var->offset;
6651 gaddr = (guint8 *)*(gpointer*)addr;
6653 buffer_add_value_full (buf, t, gaddr, domain, as_vtype, NULL);
6655 case MONO_DEBUG_VAR_ADDRESS_MODE_GSHAREDVT_LOCAL: {
6656 MonoDebugVarInfo *info_var = jit->gsharedvt_info_var;
6657 MonoDebugVarInfo *locals_var = jit->gsharedvt_locals_var;
6658 MonoGSharedVtMethodRuntimeInfo *info;
6664 g_assert (info_var);
6665 g_assert (locals_var);
6667 flags = info_var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6668 reg = info_var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6669 if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET) {
6670 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6671 addr += (gint32)info_var->offset;
6672 info = (MonoGSharedVtMethodRuntimeInfo *)*(gpointer*)addr;
6673 } else if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER) {
6674 info = (MonoGSharedVtMethodRuntimeInfo *)mono_arch_context_get_int_reg (ctx, reg);
6676 g_assert_not_reached ();
6680 flags = locals_var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6681 reg = locals_var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6682 if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET) {
6683 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6684 addr += (gint32)locals_var->offset;
6685 locals = (guint8 *)*(gpointer*)addr;
6686 } else if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER) {
6687 locals = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6689 g_assert_not_reached ();
6693 addr = locals + GPOINTER_TO_INT (info->entries [idx]);
6695 buffer_add_value_full (buf, t, addr, domain, as_vtype, NULL);
6700 g_assert_not_reached ();
6705 set_var (MonoType *t, MonoDebugVarInfo *var, MonoContext *ctx, MonoDomain *domain, guint8 *val, mgreg_t **reg_locations, MonoContext *restore_ctx)
6709 guint8 *addr, *gaddr;
6711 flags = var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6712 reg = var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6714 if (MONO_TYPE_IS_REFERENCE (t))
6715 size = sizeof (gpointer);
6717 size = mono_class_value_size (mono_class_from_mono_type (t), NULL);
6720 case MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER: {
6721 #ifdef MONO_ARCH_HAVE_CONTEXT_SET_INT_REG
6723 gboolean is_signed = FALSE;
6726 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6729 // FIXME: Write barriers
6730 mono_gc_memmove_atomic (addr, val, size);
6735 if (!t->byref && (t->type == MONO_TYPE_I1 || t->type == MONO_TYPE_I2 || t->type == MONO_TYPE_I4 || t->type == MONO_TYPE_I8))
6740 v = is_signed ? *(gint8*)val : *(guint8*)val;
6743 v = is_signed ? *(gint16*)val : *(guint16*)val;
6746 v = is_signed ? *(gint32*)val : *(guint32*)val;
6749 v = is_signed ? *(gint64*)val : *(guint64*)val;
6752 g_assert_not_reached ();
6755 /* Set value on the stack or in the return ctx */
6756 if (reg_locations [reg]) {
6757 /* Saved on the stack */
6758 DEBUG_PRINTF (1, "[dbg] Setting stack location %p for reg %x to %p.\n", reg_locations [reg], reg, (gpointer)v);
6759 *(reg_locations [reg]) = v;
6762 DEBUG_PRINTF (1, "[dbg] Setting context location for reg %x to %p.\n", reg, (gpointer)v);
6763 mono_arch_context_set_int_reg (restore_ctx, reg, v);
6766 // FIXME: Move these to mono-context.h/c.
6767 mono_arch_context_set_int_reg (ctx, reg, v);
6769 // FIXME: Can't set registers, so we disable linears
6774 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET:
6775 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6776 addr += (gint32)var->offset;
6778 //printf ("[R%d+%d] = %p\n", reg, var->offset, addr);
6781 addr = *(guint8**)addr;
6787 // FIXME: Write barriers
6788 mono_gc_memmove_atomic (addr, val, size);
6790 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET_INDIR:
6791 /* Same as regoffset, but with an indirection */
6792 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6793 addr += (gint32)var->offset;
6795 gaddr = (guint8 *)*(gpointer*)addr;
6797 // FIXME: Write barriers
6798 mono_gc_memmove_atomic (gaddr, val, size);
6800 case MONO_DEBUG_VAR_ADDRESS_MODE_DEAD:
6804 g_assert_not_reached ();
6809 set_interp_var (MonoType *t, gpointer addr, guint8 *val_buf)
6814 addr = *(gpointer*)addr;
6818 if (MONO_TYPE_IS_REFERENCE (t))
6819 size = sizeof (gpointer);
6821 size = mono_class_value_size (mono_class_from_mono_type (t), NULL);
6823 memcpy (addr, val_buf, size);
6827 clear_event_request (int req_id, int etype)
6831 mono_loader_lock ();
6832 for (i = 0; i < event_requests->len; ++i) {
6833 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
6835 if (req->id == req_id && req->event_kind == etype) {
6836 if (req->event_kind == EVENT_KIND_BREAKPOINT)
6837 clear_breakpoint ((MonoBreakpoint *)req->info);
6838 if (req->event_kind == EVENT_KIND_STEP)
6839 ss_destroy ((SingleStepReq *)req->info);
6840 if (req->event_kind == EVENT_KIND_METHOD_ENTRY)
6841 clear_breakpoint ((MonoBreakpoint *)req->info);
6842 if (req->event_kind == EVENT_KIND_METHOD_EXIT)
6843 clear_breakpoint ((MonoBreakpoint *)req->info);
6844 g_ptr_array_remove_index_fast (event_requests, i);
6849 mono_loader_unlock ();
6853 clear_assembly_from_modifier (EventRequest *req, Modifier *m, MonoAssembly *assembly)
6857 if (m->kind == MOD_KIND_EXCEPTION_ONLY && m->data.exc_class && m->data.exc_class->image->assembly == assembly)
6858 m->kind = MOD_KIND_NONE;
6859 if (m->kind == MOD_KIND_ASSEMBLY_ONLY && m->data.assemblies) {
6860 int count = 0, match_count = 0, pos;
6861 MonoAssembly **newassemblies;
6863 for (i = 0; m->data.assemblies [i]; ++i) {
6865 if (m->data.assemblies [i] == assembly)
6870 // +1 because we don't know length and we use last element to check for end
6871 newassemblies = g_new0 (MonoAssembly*, count - match_count + 1);
6874 for (i = 0; i < count; ++i)
6875 if (m->data.assemblies [i] != assembly)
6876 newassemblies [pos ++] = m->data.assemblies [i];
6877 g_assert (pos == count - match_count);
6878 g_free (m->data.assemblies);
6879 m->data.assemblies = newassemblies;
6885 clear_assembly_from_modifiers (EventRequest *req, MonoAssembly *assembly)
6889 for (i = 0; i < req->nmodifiers; ++i) {
6890 Modifier *m = &req->modifiers [i];
6892 clear_assembly_from_modifier (req, m, assembly);
6897 * clear_event_requests_for_assembly:
6899 * Clear all events requests which reference ASSEMBLY.
6902 clear_event_requests_for_assembly (MonoAssembly *assembly)
6907 mono_loader_lock ();
6911 for (i = 0; i < event_requests->len; ++i) {
6912 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
6914 clear_assembly_from_modifiers (req, assembly);
6916 if (req->event_kind == EVENT_KIND_BREAKPOINT && breakpoint_matches_assembly ((MonoBreakpoint *)req->info, assembly)) {
6917 clear_event_request (req->id, req->event_kind);
6922 if (req->event_kind == EVENT_KIND_STEP)
6923 ss_clear_for_assembly ((SingleStepReq *)req->info, assembly);
6926 mono_loader_unlock ();
6930 * type_comes_from_assembly:
6932 * GHRFunc that returns TRUE if klass comes from assembly
6935 type_comes_from_assembly (gpointer klass, gpointer also_klass, gpointer assembly)
6937 return (mono_class_get_image ((MonoClass*)klass) == mono_assembly_get_image ((MonoAssembly*)assembly));
6941 * clear_types_for_assembly:
6943 * Clears types from loaded_classes for a given assembly
6946 clear_types_for_assembly (MonoAssembly *assembly)
6948 MonoDomain *domain = mono_domain_get ();
6949 AgentDomainInfo *info = NULL;
6951 if (!domain || !domain_jit_info (domain))
6952 /* Can happen during shutdown */
6955 info = get_agent_domain_info (domain);
6957 mono_loader_lock ();
6958 g_hash_table_foreach_remove (info->loaded_classes, type_comes_from_assembly, assembly);
6959 mono_loader_unlock ();
6963 add_thread (gpointer key, gpointer value, gpointer user_data)
6965 MonoInternalThread *thread = (MonoInternalThread *)value;
6966 Buffer *buf = (Buffer *)user_data;
6968 buffer_add_objid (buf, (MonoObject*)thread);
6972 do_invoke_method (DebuggerTlsData *tls, Buffer *buf, InvokeData *invoke, guint8 *p, guint8 **endp)
6975 guint8 *end = invoke->endp;
6979 MonoMethodSignature *sig;
6982 MonoObject *this_arg, *res, *exc = NULL;
6985 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
6988 MonoStopwatch watch;
6990 if (invoke->method) {
6992 * Invoke this method directly, currently only Environment.Exit () is supported.
6995 DEBUG_PRINTF (1, "[%p] Invoking method '%s' on receiver '%s'.\n", (gpointer) (gsize) mono_native_thread_id_get (), mono_method_full_name (invoke->method, TRUE), this_arg ? this_arg->vtable->klass->name : "<null>");
6997 mono_runtime_try_invoke (invoke->method, NULL, invoke->args, &exc, &error);
6998 mono_error_assert_ok (&error);
7000 g_assert_not_reached ();
7003 m = decode_methodid (p, &p, end, &domain, &err);
7004 if (err != ERR_NONE)
7006 sig = mono_method_signature (m);
7008 if (m->klass->valuetype)
7009 this_buf = (guint8 *)g_alloca (mono_class_instance_size (m->klass));
7011 this_buf = (guint8 *)g_alloca (sizeof (MonoObject*));
7012 if (m->klass->valuetype && (m->flags & METHOD_ATTRIBUTE_STATIC)) {
7013 /* Should be null */
7014 int type = decode_byte (p, &p, end);
7015 if (type != VALUE_TYPE_ID_NULL) {
7016 DEBUG_PRINTF (1, "[%p] Error: Static vtype method invoked with this argument.\n", (gpointer) (gsize) mono_native_thread_id_get ());
7017 return ERR_INVALID_ARGUMENT;
7019 memset (this_buf, 0, mono_class_instance_size (m->klass));
7020 } else if (m->klass->valuetype && !strcmp (m->name, ".ctor")) {
7024 int type = decode_byte (p, &tmp_p, end);
7025 if (type == VALUE_TYPE_ID_NULL) {
7026 memset (this_buf, 0, mono_class_instance_size (m->klass));
7029 err = decode_value (&m->klass->byval_arg, domain, this_buf, p, &p, end);
7030 if (err != ERR_NONE)
7034 err = decode_value (&m->klass->byval_arg, domain, this_buf, p, &p, end);
7035 if (err != ERR_NONE)
7039 if (!m->klass->valuetype)
7040 this_arg = *(MonoObject**)this_buf;
7044 if (MONO_CLASS_IS_INTERFACE (m->klass)) {
7046 DEBUG_PRINTF (1, "[%p] Error: Interface method invoked without this argument.\n", (gpointer) (gsize) mono_native_thread_id_get ());
7047 return ERR_INVALID_ARGUMENT;
7049 m = mono_object_get_virtual_method (this_arg, m);
7050 /* Transform this to the format the rest of the code expects it to be */
7051 if (m->klass->valuetype) {
7052 this_buf = (guint8 *)g_alloca (mono_class_instance_size (m->klass));
7053 memcpy (this_buf, mono_object_unbox (this_arg), mono_class_instance_size (m->klass));
7055 } else if ((m->flags & METHOD_ATTRIBUTE_VIRTUAL) && !m->klass->valuetype && invoke->flags & INVOKE_FLAG_VIRTUAL) {
7057 DEBUG_PRINTF (1, "[%p] Error: invoke with INVOKE_FLAG_VIRTUAL flag set without this argument.\n", (gpointer) (gsize) mono_native_thread_id_get ());
7058 return ERR_INVALID_ARGUMENT;
7060 m = mono_object_get_virtual_method (this_arg, m);
7061 if (m->klass->valuetype) {
7062 this_buf = (guint8 *)g_alloca (mono_class_instance_size (m->klass));
7063 memcpy (this_buf, mono_object_unbox (this_arg), mono_class_instance_size (m->klass));
7067 DEBUG_PRINTF (1, "[%p] Invoking method '%s' on receiver '%s'.\n", (gpointer) (gsize) mono_native_thread_id_get (), mono_method_full_name (m, TRUE), this_arg ? this_arg->vtable->klass->name : "<null>");
7069 if (this_arg && this_arg->vtable->domain != domain)
7072 if (!m->klass->valuetype && !(m->flags & METHOD_ATTRIBUTE_STATIC) && !this_arg) {
7073 if (!strcmp (m->name, ".ctor")) {
7074 if (mono_class_is_abstract (m->klass))
7075 return ERR_INVALID_ARGUMENT;
7078 this_arg = mono_object_new_checked (domain, m->klass, &error);
7079 mono_error_assert_ok (&error);
7082 return ERR_INVALID_ARGUMENT;
7086 if (this_arg && !obj_is_of_type (this_arg, &m->klass->byval_arg))
7087 return ERR_INVALID_ARGUMENT;
7089 nargs = decode_int (p, &p, end);
7090 if (nargs != sig->param_count)
7091 return ERR_INVALID_ARGUMENT;
7092 /* Use alloca to get gc tracking */
7093 arg_buf = (guint8 **)g_alloca (nargs * sizeof (gpointer));
7094 memset (arg_buf, 0, nargs * sizeof (gpointer));
7095 args = (gpointer *)g_alloca (nargs * sizeof (gpointer));
7096 for (i = 0; i < nargs; ++i) {
7097 if (MONO_TYPE_IS_REFERENCE (sig->params [i])) {
7098 err = decode_value (sig->params [i], domain, (guint8*)&args [i], p, &p, end);
7099 if (err != ERR_NONE)
7101 if (args [i] && ((MonoObject*)args [i])->vtable->domain != domain)
7104 if (sig->params [i]->byref) {
7105 arg_buf [i] = (guint8 *)g_alloca (sizeof (mgreg_t));
7106 *(gpointer*)arg_buf [i] = args [i];
7107 args [i] = arg_buf [i];
7110 MonoClass *arg_class = mono_class_from_mono_type (sig->params [i]);
7111 arg_buf [i] = (guint8 *)g_alloca (mono_class_instance_size (arg_class));
7112 err = decode_value (sig->params [i], domain, arg_buf [i], p, &p, end);
7113 if (err != ERR_NONE)
7115 if (mono_class_is_nullable (arg_class)) {
7116 args [i] = mono_nullable_box (arg_buf [i], arg_class, &error);
7117 mono_error_assert_ok (&error);
7119 args [i] = arg_buf [i];
7127 if (invoke->flags & INVOKE_FLAG_DISABLE_BREAKPOINTS)
7128 tls->disable_breakpoints = TRUE;
7130 tls->disable_breakpoints = FALSE;
7133 * Add an LMF frame to link the stack frames on the invoke method with our caller.
7135 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
7136 if (invoke->has_ctx) {
7139 lmf_addr = mono_get_lmf_addr ();
7142 memset (&ext, 0, sizeof (ext));
7143 mono_arch_init_lmf_ext (&ext, *lmf_addr);
7145 ext.debugger_invoke = TRUE;
7146 memcpy (&ext.ctx, &invoke->ctx, sizeof (MonoContext));
7148 mono_set_lmf ((MonoLMF*)&ext);
7152 mono_stopwatch_start (&watch);
7153 res = mono_runtime_try_invoke (m, m->klass->valuetype ? (gpointer) this_buf : (gpointer) this_arg, args, &exc, &error);
7154 if (!mono_error_ok (&error) && exc == NULL) {
7155 exc = (MonoObject*) mono_error_convert_to_exception (&error);
7157 mono_error_cleanup (&error); /* FIXME report error */
7159 mono_stopwatch_stop (&watch);
7160 DEBUG_PRINTF (1, "[%p] Invoke result: %p, exc: %s, time: %ld ms.\n", (gpointer) (gsize) mono_native_thread_id_get (), res, exc ? exc->vtable->klass->name : NULL, (long)mono_stopwatch_elapsed_ms (&watch));
7162 buffer_add_byte (buf, 0);
7163 buffer_add_value (buf, &mono_defaults.object_class->byval_arg, &exc, domain);
7165 gboolean out_this = FALSE;
7166 gboolean out_args = FALSE;
7168 if ((invoke->flags & INVOKE_FLAG_RETURN_OUT_THIS) && CHECK_PROTOCOL_VERSION (2, 35))
7170 if ((invoke->flags & INVOKE_FLAG_RETURN_OUT_ARGS) && CHECK_PROTOCOL_VERSION (2, 35))
7172 buffer_add_byte (buf, 1 + (out_this ? 2 : 0) + (out_args ? 4 : 0));
7173 if (m->string_ctor) {
7174 buffer_add_value (buf, &mono_get_string_class ()->byval_arg, &res, domain);
7175 } else if (sig->ret->type == MONO_TYPE_VOID && !m->string_ctor) {
7176 if (!strcmp (m->name, ".ctor")) {
7177 if (!m->klass->valuetype)
7178 buffer_add_value (buf, &mono_defaults.object_class->byval_arg, &this_arg, domain);
7180 buffer_add_value (buf, &m->klass->byval_arg, this_buf, domain);
7182 buffer_add_value (buf, &mono_defaults.void_class->byval_arg, NULL, domain);
7184 } else if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
7185 buffer_add_value (buf, sig->ret, &res, domain);
7186 } else if (mono_class_from_mono_type (sig->ret)->valuetype || sig->ret->type == MONO_TYPE_PTR || sig->ret->type == MONO_TYPE_FNPTR) {
7187 if (mono_class_is_nullable (mono_class_from_mono_type (sig->ret))) {
7188 MonoClass *k = mono_class_from_mono_type (sig->ret);
7189 guint8 *nullable_buf = (guint8 *)g_alloca (mono_class_value_size (k, NULL));
7191 g_assert (nullable_buf);
7192 mono_nullable_init (nullable_buf, res, k);
7193 buffer_add_value (buf, sig->ret, nullable_buf, domain);
7196 buffer_add_value (buf, sig->ret, mono_object_unbox (res), domain);
7202 /* Return the new value of the receiver after the call */
7203 buffer_add_value (buf, &m->klass->byval_arg, this_buf, domain);
7205 buffer_add_int (buf, nargs);
7206 for (i = 0; i < nargs; ++i) {
7207 if (MONO_TYPE_IS_REFERENCE (sig->params [i]))
7208 buffer_add_value (buf, sig->params [i], &args [i], domain);
7209 else if (sig->params [i]->byref)
7210 /* add_value () does an indirection */
7211 buffer_add_value (buf, sig->params [i], &arg_buf [i], domain);
7213 buffer_add_value (buf, sig->params [i], arg_buf [i], domain);
7218 tls->disable_breakpoints = FALSE;
7220 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
7221 if (invoke->has_ctx)
7222 mono_set_lmf ((MonoLMF *)(((gssize)ext.lmf.previous_lmf) & ~3));
7226 // FIXME: byref arguments
7234 * Invoke the method given by tls->pending_invoke in the current thread.
7237 invoke_method (void)
7239 DebuggerTlsData *tls;
7245 MonoContext restore_ctx;
7248 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
7252 * Store the `InvokeData *' in `tls->invoke' until we're done with
7253 * the invocation, so CMD_VM_ABORT_INVOKE can check it.
7256 mono_loader_lock ();
7258 invoke = tls->pending_invoke;
7260 tls->pending_invoke = NULL;
7262 invoke->last_invoke = tls->invoke;
7263 tls->invoke = invoke;
7265 mono_loader_unlock ();
7267 tls->frames_up_to_date = FALSE;
7273 for (mindex = 0; mindex < invoke->nmethods; ++mindex) {
7274 buffer_init (&buf, 128);
7277 /* Fail the other invokes as well */
7279 err = do_invoke_method (tls, &buf, invoke, p, &p);
7282 if (tls->abort_requested) {
7283 if (CHECK_PROTOCOL_VERSION (2, 42))
7284 err = ERR_INVOKE_ABORTED;
7287 /* Start suspending before sending the reply */
7288 if (mindex == invoke->nmethods - 1) {
7289 if (!(invoke->flags & INVOKE_FLAG_SINGLE_THREADED)) {
7290 for (i = 0; i < invoke->suspend_count; ++i)
7295 send_reply_packet (id, err, &buf);
7300 memcpy (&restore_ctx, &invoke->ctx, sizeof (MonoContext));
7302 if (invoke->has_ctx)
7303 save_thread_context (&restore_ctx);
7305 if (invoke->flags & INVOKE_FLAG_SINGLE_THREADED) {
7306 g_assert (tls->resume_count);
7307 tls->resume_count -= invoke->suspend_count;
7310 DEBUG_PRINTF (1, "[%p] Invoke finished (%d), resume_count = %d.\n", (gpointer) (gsize) mono_native_thread_id_get (), err, tls->resume_count);
7313 * Take the loader lock to avoid race conditions with CMD_VM_ABORT_INVOKE:
7315 * It is possible that mono_thread_internal_abort () was called
7316 * after the mono_runtime_invoke_checked() already returned, but it doesn't matter
7317 * because we reset the abort here.
7320 mono_loader_lock ();
7322 if (tls->abort_requested)
7323 mono_thread_internal_reset_abort (tls->thread);
7325 tls->invoke = tls->invoke->last_invoke;
7326 tls->abort_requested = FALSE;
7328 mono_loader_unlock ();
7337 is_really_suspended (gpointer key, gpointer value, gpointer user_data)
7339 MonoThread *thread = (MonoThread *)value;
7340 DebuggerTlsData *tls;
7343 mono_loader_lock ();
7344 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
7346 res = tls->really_suspended;
7347 mono_loader_unlock ();
7353 get_source_files_for_type (MonoClass *klass)
7355 gpointer iter = NULL;
7357 MonoDebugSourceInfo *sinfo;
7361 files = g_ptr_array_new ();
7363 while ((method = mono_class_get_methods (klass, &iter))) {
7364 MonoDebugMethodInfo *minfo = mono_debug_lookup_method (method);
7365 GPtrArray *source_file_list;
7368 mono_debug_get_seq_points (minfo, NULL, &source_file_list, NULL, NULL, NULL);
7369 for (j = 0; j < source_file_list->len; ++j) {
7370 sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, j);
7371 for (i = 0; i < files->len; ++i)
7372 if (!strcmp (g_ptr_array_index (files, i), sinfo->source_file))
7374 if (i == files->len)
7375 g_ptr_array_add (files, g_strdup (sinfo->source_file));
7377 g_ptr_array_free (source_file_list, TRUE);
7385 vm_commands (int command, int id, guint8 *p, guint8 *end, Buffer *buf)
7388 case CMD_VM_VERSION: {
7389 char *build_info, *version;
7391 build_info = mono_get_runtime_build_info ();
7392 version = g_strdup_printf ("mono %s", build_info);
7394 buffer_add_string (buf, version); /* vm version */
7395 buffer_add_int (buf, MAJOR_VERSION);
7396 buffer_add_int (buf, MINOR_VERSION);
7397 g_free (build_info);
7401 case CMD_VM_SET_PROTOCOL_VERSION: {
7402 major_version = decode_int (p, &p, end);
7403 minor_version = decode_int (p, &p, end);
7404 protocol_version_set = TRUE;
7405 DEBUG_PRINTF (1, "[dbg] Protocol version %d.%d, client protocol version %d.%d.\n", MAJOR_VERSION, MINOR_VERSION, major_version, minor_version);
7408 case CMD_VM_ALL_THREADS: {
7410 mono_loader_lock ();
7411 buffer_add_int (buf, mono_g_hash_table_size (tid_to_thread_obj));
7412 mono_g_hash_table_foreach (tid_to_thread_obj, add_thread, buf);
7413 mono_loader_unlock ();
7416 case CMD_VM_SUSPEND:
7418 wait_for_suspend ();
7421 if (suspend_count == 0)
7422 return ERR_NOT_SUSPENDED;
7424 clear_suspended_objs ();
7426 case CMD_VM_DISPOSE:
7427 /* Clear all event requests */
7428 mono_loader_lock ();
7429 while (event_requests->len > 0) {
7430 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, 0);
7432 clear_event_request (req->id, req->event_kind);
7434 mono_loader_unlock ();
7436 while (suspend_count > 0)
7438 disconnected = TRUE;
7439 vm_start_event_sent = FALSE;
7442 MonoInternalThread *thread;
7443 DebuggerTlsData *tls;
7444 #ifdef TRY_MANAGED_SYSTEM_ENVIRONMENT_EXIT
7445 MonoClass *env_class;
7447 MonoMethod *exit_method = NULL;
7451 exit_code = decode_int (p, &p, end);
7453 // FIXME: What if there is a VM_DEATH event request with SUSPEND_ALL ?
7455 /* Have to send a reply before exiting */
7456 send_reply_packet (id, 0, buf);
7458 /* Clear all event requests */
7459 mono_loader_lock ();
7460 while (event_requests->len > 0) {
7461 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, 0);
7463 clear_event_request (req->id, req->event_kind);
7465 mono_loader_unlock ();
7468 * The JDWP documentation says that the shutdown is not orderly. It doesn't
7469 * specify whenever a VM_DEATH event is sent. We currently do an orderly
7470 * shutdown by hijacking a thread to execute Environment.Exit (). This is
7471 * better than doing the shutdown ourselves, since it avoids various races.
7475 wait_for_suspend ();
7477 #ifdef TRY_MANAGED_SYSTEM_ENVIRONMENT_EXIT
7478 env_class = mono_class_try_load_from_name (mono_defaults.corlib, "System", "Environment");
7480 exit_method = mono_class_get_method_from_name (env_class, "Exit", 1);
7483 mono_loader_lock ();
7484 thread = (MonoInternalThread *)mono_g_hash_table_find (tid_to_thread, is_really_suspended, NULL);
7485 mono_loader_unlock ();
7487 if (thread && exit_method) {
7488 mono_loader_lock ();
7489 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
7490 mono_loader_unlock ();
7492 args = g_new0 (gpointer, 1);
7493 args [0] = g_malloc (sizeof (int));
7494 *(int*)(args [0]) = exit_code;
7496 tls->pending_invoke = g_new0 (InvokeData, 1);
7497 tls->pending_invoke->method = exit_method;
7498 tls->pending_invoke->args = args;
7499 tls->pending_invoke->nmethods = 1;
7501 while (suspend_count > 0)
7505 * No thread found, do it ourselves.
7506 * FIXME: This can race with normal shutdown etc.
7508 while (suspend_count > 0)
7511 if (!mono_runtime_try_shutdown ())
7514 mono_environment_exitcode_set (exit_code);
7516 /* Suspend all managed threads since the runtime is going away */
7517 DEBUG_PRINTF (1, "Suspending all threads...\n");
7518 mono_thread_suspend_all_other_threads ();
7519 DEBUG_PRINTF (1, "Shutting down the runtime...\n");
7520 mono_runtime_quit ();
7521 transport_close2 ();
7522 DEBUG_PRINTF (1, "Exiting...\n");
7528 case CMD_VM_INVOKE_METHOD:
7529 case CMD_VM_INVOKE_METHODS: {
7530 int objid = decode_objid (p, &p, end);
7532 DebuggerTlsData *tls;
7533 int i, count, flags, nmethods;
7536 err = get_object (objid, (MonoObject**)&thread);
7537 if (err != ERR_NONE)
7540 flags = decode_int (p, &p, end);
7542 if (command == CMD_VM_INVOKE_METHODS)
7543 nmethods = decode_int (p, &p, end);
7547 // Wait for suspending if it already started
7549 wait_for_suspend ();
7550 if (!is_suspended ())
7551 return ERR_NOT_SUSPENDED;
7553 mono_loader_lock ();
7554 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, THREAD_TO_INTERNAL (thread));
7555 mono_loader_unlock ();
7558 if (!tls->really_suspended)
7559 /* The thread is still running native code, can't do invokes */
7560 return ERR_NOT_SUSPENDED;
7563 * Store the invoke data into tls, the thread will execute it after it is
7566 if (tls->pending_invoke)
7567 return ERR_NOT_SUSPENDED;
7568 tls->pending_invoke = g_new0 (InvokeData, 1);
7569 tls->pending_invoke->id = id;
7570 tls->pending_invoke->flags = flags;
7571 tls->pending_invoke->p = (guint8 *)g_malloc (end - p);
7572 memcpy (tls->pending_invoke->p, p, end - p);
7573 tls->pending_invoke->endp = tls->pending_invoke->p + (end - p);
7574 tls->pending_invoke->suspend_count = suspend_count;
7575 tls->pending_invoke->nmethods = nmethods;
7577 if (flags & INVOKE_FLAG_SINGLE_THREADED) {
7578 resume_thread (THREAD_TO_INTERNAL (thread));
7581 count = suspend_count;
7582 for (i = 0; i < count; ++i)
7587 case CMD_VM_ABORT_INVOKE: {
7588 int objid = decode_objid (p, &p, end);
7590 DebuggerTlsData *tls;
7594 err = get_object (objid, (MonoObject**)&thread);
7595 if (err != ERR_NONE)
7598 invoke_id = decode_int (p, &p, end);
7600 mono_loader_lock ();
7601 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, THREAD_TO_INTERNAL (thread));
7604 if (tls->abort_requested) {
7605 DEBUG_PRINTF (1, "Abort already requested.\n");
7606 mono_loader_unlock ();
7611 * Check whether we're still inside the mono_runtime_invoke_checked() and that it's
7612 * actually the correct invocation.
7614 * Careful, we do not stop the thread that's doing the invocation, so we can't
7615 * inspect its stack. However, invoke_method() also acquires the loader lock
7616 * when it's done, so we're safe here.
7620 if (!tls->invoke || (tls->invoke->id != invoke_id)) {
7621 mono_loader_unlock ();
7622 return ERR_NO_INVOCATION;
7625 tls->abort_requested = TRUE;
7627 mono_thread_internal_abort (THREAD_TO_INTERNAL (thread));
7628 mono_loader_unlock ();
7632 case CMD_VM_SET_KEEPALIVE: {
7633 int timeout = decode_int (p, &p, end);
7634 agent_config.keepalive = timeout;
7636 #ifndef DISABLE_SOCKET_TRANSPORT
7643 case CMD_VM_GET_TYPES_FOR_SOURCE_FILE: {
7644 GHashTableIter iter, kiter;
7649 char *fname, *basename;
7650 gboolean ignore_case;
7651 GSList *class_list, *l;
7652 GPtrArray *res_classes, *res_domains;
7654 fname = decode_string (p, &p, end);
7655 ignore_case = decode_byte (p, &p, end);
7657 basename = dbg_path_get_basename (fname);
7659 res_classes = g_ptr_array_new ();
7660 res_domains = g_ptr_array_new ();
7662 mono_loader_lock ();
7663 g_hash_table_iter_init (&iter, domains);
7664 while (g_hash_table_iter_next (&iter, NULL, (void**)&domain)) {
7665 AgentDomainInfo *info = (AgentDomainInfo *)domain_jit_info (domain)->agent_info;
7667 /* Update 'source_file_to_class' cache */
7668 g_hash_table_iter_init (&kiter, info->loaded_classes);
7669 while (g_hash_table_iter_next (&kiter, NULL, (void**)&klass)) {
7670 if (!g_hash_table_lookup (info->source_files, klass)) {
7671 files = get_source_files_for_type (klass);
7672 g_hash_table_insert (info->source_files, klass, files);
7674 for (i = 0; i < files->len; ++i) {
7675 char *s = (char *)g_ptr_array_index (files, i);
7676 char *s2 = dbg_path_get_basename (s);
7679 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class, s2);
7681 class_list = g_slist_prepend (class_list, klass);
7682 g_hash_table_insert (info->source_file_to_class, g_strdup (s2), class_list);
7684 class_list = g_slist_prepend (class_list, klass);
7685 g_hash_table_insert (info->source_file_to_class, s2, class_list);
7688 /* The _ignorecase hash contains the lowercase path */
7689 s3 = strdup_tolower (s2);
7690 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class_ignorecase, s3);
7692 class_list = g_slist_prepend (class_list, klass);
7693 g_hash_table_insert (info->source_file_to_class_ignorecase, g_strdup (s3), class_list);
7695 class_list = g_slist_prepend (class_list, klass);
7696 g_hash_table_insert (info->source_file_to_class_ignorecase, s3, class_list);
7708 s = strdup_tolower (basename);
7709 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class_ignorecase, s);
7712 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class, basename);
7715 for (l = class_list; l; l = l->next) {
7716 klass = (MonoClass *)l->data;
7718 g_ptr_array_add (res_classes, klass);
7719 g_ptr_array_add (res_domains, domain);
7722 mono_loader_unlock ();
7727 buffer_add_int (buf, res_classes->len);
7728 for (i = 0; i < res_classes->len; ++i)
7729 buffer_add_typeid (buf, (MonoDomain *)g_ptr_array_index (res_domains, i), (MonoClass *)g_ptr_array_index (res_classes, i));
7730 g_ptr_array_free (res_classes, TRUE);
7731 g_ptr_array_free (res_domains, TRUE);
7734 case CMD_VM_GET_TYPES: {
7735 GHashTableIter iter;
7739 gboolean ignore_case;
7740 GPtrArray *res_classes, *res_domains;
7741 MonoTypeNameParse info;
7743 name = decode_string (p, &p, end);
7744 ignore_case = decode_byte (p, &p, end);
7746 if (!mono_reflection_parse_type (name, &info)) {
7748 mono_reflection_free_type_info (&info);
7749 return ERR_INVALID_ARGUMENT;
7752 res_classes = g_ptr_array_new ();
7753 res_domains = g_ptr_array_new ();
7755 mono_loader_lock ();
7756 g_hash_table_iter_init (&iter, domains);
7757 while (g_hash_table_iter_next (&iter, NULL, (void**)&domain)) {
7759 gboolean type_resolve;
7763 mono_domain_assemblies_lock (domain);
7764 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
7765 ass = (MonoAssembly *)tmp->data;
7769 type_resolve = TRUE;
7770 /* FIXME really okay to call while holding locks? */
7771 t = mono_reflection_get_type_checked (ass->image, ass->image, &info, ignore_case, &type_resolve, &error);
7772 mono_error_cleanup (&error);
7774 g_ptr_array_add (res_classes, mono_type_get_class (t));
7775 g_ptr_array_add (res_domains, domain);
7779 mono_domain_assemblies_unlock (domain);
7781 mono_loader_unlock ();
7784 mono_reflection_free_type_info (&info);
7786 buffer_add_int (buf, res_classes->len);
7787 for (i = 0; i < res_classes->len; ++i)
7788 buffer_add_typeid (buf, (MonoDomain *)g_ptr_array_index (res_domains, i), (MonoClass *)g_ptr_array_index (res_classes, i));
7789 g_ptr_array_free (res_classes, TRUE);
7790 g_ptr_array_free (res_domains, TRUE);
7793 case CMD_VM_START_BUFFERING:
7794 case CMD_VM_STOP_BUFFERING:
7795 /* Handled in the main loop */
7798 return ERR_NOT_IMPLEMENTED;
7805 event_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7811 case CMD_EVENT_REQUEST_SET: {
7813 int i, event_kind, suspend_policy, nmodifiers;
7817 MonoThread *step_thread;
7818 int step_thread_id = 0;
7819 StepDepth depth = STEP_DEPTH_INTO;
7820 StepSize size = STEP_SIZE_MIN;
7821 StepFilter filter = STEP_FILTER_NONE;
7825 event_kind = decode_byte (p, &p, end);
7826 suspend_policy = decode_byte (p, &p, end);
7827 nmodifiers = decode_byte (p, &p, end);
7829 req = (EventRequest *)g_malloc0 (sizeof (EventRequest) + (nmodifiers * sizeof (Modifier)));
7830 req->id = InterlockedIncrement (&event_request_id);
7831 req->event_kind = event_kind;
7832 req->suspend_policy = suspend_policy;
7833 req->nmodifiers = nmodifiers;
7836 for (i = 0; i < nmodifiers; ++i) {
7837 mod = (ModifierKind)decode_byte (p, &p, end);
7839 req->modifiers [i].kind = mod;
7840 if (mod == MOD_KIND_COUNT) {
7841 req->modifiers [i].data.count = decode_int (p, &p, end);
7842 } else if (mod == MOD_KIND_LOCATION_ONLY) {
7843 method = decode_methodid (p, &p, end, &domain, &err);
7844 if (err != ERR_NONE)
7846 location = decode_long (p, &p, end);
7847 } else if (mod == MOD_KIND_STEP) {
7848 step_thread_id = decode_id (p, &p, end);
7849 size = (StepSize)decode_int (p, &p, end);
7850 depth = (StepDepth)decode_int (p, &p, end);
7851 if (CHECK_PROTOCOL_VERSION (2, 16))
7852 filter = (StepFilter)decode_int (p, &p, end);
7853 req->modifiers [i].data.filter = filter;
7854 if (!CHECK_PROTOCOL_VERSION (2, 26) && (req->modifiers [i].data.filter & STEP_FILTER_DEBUGGER_HIDDEN))
7855 /* Treat STEP_THOUGH the same as HIDDEN */
7856 req->modifiers [i].data.filter = (StepFilter)(req->modifiers [i].data.filter | STEP_FILTER_DEBUGGER_STEP_THROUGH);
7857 } else if (mod == MOD_KIND_THREAD_ONLY) {
7858 int id = decode_id (p, &p, end);
7860 err = get_object (id, (MonoObject**)&req->modifiers [i].data.thread);
7861 if (err != ERR_NONE) {
7865 } else if (mod == MOD_KIND_EXCEPTION_ONLY) {
7866 MonoClass *exc_class = decode_typeid (p, &p, end, &domain, &err);
7868 if (err != ERR_NONE)
7870 req->modifiers [i].caught = decode_byte (p, &p, end);
7871 req->modifiers [i].uncaught = decode_byte (p, &p, end);
7872 if (CHECK_PROTOCOL_VERSION (2, 25))
7873 req->modifiers [i].subclasses = decode_byte (p, &p, end);
7875 req->modifiers [i].subclasses = TRUE;
7876 DEBUG_PRINTF (1, "[dbg] \tEXCEPTION_ONLY filter (%s%s%s%s).\n", exc_class ? exc_class->name : "all", req->modifiers [i].caught ? ", caught" : "", req->modifiers [i].uncaught ? ", uncaught" : "", req->modifiers [i].subclasses ? ", include-subclasses" : "");
7878 req->modifiers [i].data.exc_class = exc_class;
7880 if (!mono_class_is_assignable_from (mono_defaults.exception_class, exc_class)) {
7882 return ERR_INVALID_ARGUMENT;
7885 } else if (mod == MOD_KIND_ASSEMBLY_ONLY) {
7886 int n = decode_int (p, &p, end);
7889 // +1 because we don't know length and we use last element to check for end
7890 req->modifiers [i].data.assemblies = g_new0 (MonoAssembly*, n + 1);
7891 for (j = 0; j < n; ++j) {
7892 req->modifiers [i].data.assemblies [j] = decode_assemblyid (p, &p, end, &domain, &err);
7893 if (err != ERR_NONE) {
7894 g_free (req->modifiers [i].data.assemblies);
7898 } else if (mod == MOD_KIND_SOURCE_FILE_ONLY) {
7899 int n = decode_int (p, &p, end);
7902 modifier = &req->modifiers [i];
7903 modifier->data.source_files = g_hash_table_new (g_str_hash, g_str_equal);
7904 for (j = 0; j < n; ++j) {
7905 char *s = decode_string (p, &p, end);
7909 s2 = strdup_tolower (s);
7910 g_hash_table_insert (modifier->data.source_files, s2, s2);
7914 } else if (mod == MOD_KIND_TYPE_NAME_ONLY) {
7915 int n = decode_int (p, &p, end);
7918 modifier = &req->modifiers [i];
7919 modifier->data.type_names = g_hash_table_new (g_str_hash, g_str_equal);
7920 for (j = 0; j < n; ++j) {
7921 char *s = decode_string (p, &p, end);
7924 g_hash_table_insert (modifier->data.type_names, s, s);
7928 return ERR_NOT_IMPLEMENTED;
7932 if (req->event_kind == EVENT_KIND_BREAKPOINT) {
7935 req->info = set_breakpoint (method, location, req, &error);
7936 if (!mono_error_ok (&error)) {
7938 DEBUG_PRINTF (1, "[dbg] Failed to set breakpoint: %s\n", mono_error_get_message (&error));
7939 mono_error_cleanup (&error);
7940 return ERR_NO_SEQ_POINT_AT_IL_OFFSET;
7942 } else if (req->event_kind == EVENT_KIND_STEP) {
7943 g_assert (step_thread_id);
7945 err = get_object (step_thread_id, (MonoObject**)&step_thread);
7946 if (err != ERR_NONE) {
7951 err = ss_create (THREAD_TO_INTERNAL (step_thread), size, depth, filter, req);
7952 if (err != ERR_NONE) {
7956 } else if (req->event_kind == EVENT_KIND_METHOD_ENTRY) {
7957 req->info = set_breakpoint (NULL, METHOD_ENTRY_IL_OFFSET, req, NULL);
7958 } else if (req->event_kind == EVENT_KIND_METHOD_EXIT) {
7959 req->info = set_breakpoint (NULL, METHOD_EXIT_IL_OFFSET, req, NULL);
7960 } else if (req->event_kind == EVENT_KIND_EXCEPTION) {
7961 } else if (req->event_kind == EVENT_KIND_TYPE_LOAD) {
7963 if (req->nmodifiers) {
7965 return ERR_NOT_IMPLEMENTED;
7969 mono_loader_lock ();
7970 g_ptr_array_add (event_requests, req);
7972 if (agent_config.defer) {
7973 /* Transmit cached data to the client on receipt of the event request */
7974 switch (req->event_kind) {
7975 case EVENT_KIND_APPDOMAIN_CREATE:
7976 /* Emit load events for currently loaded domains */
7977 g_hash_table_foreach (domains, emit_appdomain_load, NULL);
7979 case EVENT_KIND_ASSEMBLY_LOAD:
7980 /* Emit load events for currently loaded assemblies */
7981 mono_domain_foreach (send_assemblies_for_domain, NULL);
7983 case EVENT_KIND_THREAD_START:
7984 /* Emit start events for currently started threads */
7985 mono_g_hash_table_foreach (tid_to_thread, emit_thread_start, NULL);
7987 case EVENT_KIND_TYPE_LOAD:
7988 /* Emit type load events for currently loaded types */
7989 mono_domain_foreach (send_types_for_domain, NULL);
7995 mono_loader_unlock ();
7997 buffer_add_int (buf, req->id);
8000 case CMD_EVENT_REQUEST_CLEAR: {
8001 int etype = decode_byte (p, &p, end);
8002 int req_id = decode_int (p, &p, end);
8004 // FIXME: Make a faster mapping from req_id to request
8005 mono_loader_lock ();
8006 clear_event_request (req_id, etype);
8007 mono_loader_unlock ();
8010 case CMD_EVENT_REQUEST_CLEAR_ALL_BREAKPOINTS: {
8013 mono_loader_lock ();
8015 while (i < event_requests->len) {
8016 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
8018 if (req->event_kind == EVENT_KIND_BREAKPOINT) {
8019 clear_breakpoint ((MonoBreakpoint *)req->info);
8021 g_ptr_array_remove_index_fast (event_requests, i);
8027 mono_loader_unlock ();
8031 return ERR_NOT_IMPLEMENTED;
8038 domain_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8044 case CMD_APPDOMAIN_GET_ROOT_DOMAIN: {
8045 buffer_add_domainid (buf, mono_get_root_domain ());
8048 case CMD_APPDOMAIN_GET_FRIENDLY_NAME: {
8049 domain = decode_domainid (p, &p, end, NULL, &err);
8050 if (err != ERR_NONE)
8052 buffer_add_string (buf, domain->friendly_name);
8055 case CMD_APPDOMAIN_GET_ASSEMBLIES: {
8060 domain = decode_domainid (p, &p, end, NULL, &err);
8061 if (err != ERR_NONE)
8063 mono_loader_lock ();
8065 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
8068 buffer_add_int (buf, count);
8069 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
8070 ass = (MonoAssembly *)tmp->data;
8071 buffer_add_assemblyid (buf, domain, ass);
8073 mono_loader_unlock ();
8076 case CMD_APPDOMAIN_GET_ENTRY_ASSEMBLY: {
8077 domain = decode_domainid (p, &p, end, NULL, &err);
8078 if (err != ERR_NONE)
8081 buffer_add_assemblyid (buf, domain, domain->entry_assembly);
8084 case CMD_APPDOMAIN_GET_CORLIB: {
8085 domain = decode_domainid (p, &p, end, NULL, &err);
8086 if (err != ERR_NONE)
8089 buffer_add_assemblyid (buf, domain, domain->domain->mbr.obj.vtable->klass->image->assembly);
8092 case CMD_APPDOMAIN_CREATE_STRING: {
8097 domain = decode_domainid (p, &p, end, NULL, &err);
8098 if (err != ERR_NONE)
8100 s = decode_string (p, &p, end);
8102 o = mono_string_new_checked (domain, s, &error);
8103 if (!is_ok (&error)) {
8104 DEBUG_PRINTF (1, "[dbg] Failed to allocate String object '%s': %s\n", s, mono_error_get_message (&error));
8105 mono_error_cleanup (&error);
8106 return ERR_INVALID_OBJECT;
8108 buffer_add_objid (buf, (MonoObject*)o);
8111 case CMD_APPDOMAIN_CREATE_BOXED_VALUE: {
8114 MonoDomain *domain2;
8117 domain = decode_domainid (p, &p, end, NULL, &err);
8118 if (err != ERR_NONE)
8120 klass = decode_typeid (p, &p, end, &domain2, &err);
8121 if (err != ERR_NONE)
8125 g_assert (domain == domain2);
8127 o = mono_object_new_checked (domain, klass, &error);
8128 mono_error_assert_ok (&error);
8130 err = decode_value (&klass->byval_arg, domain, (guint8 *)mono_object_unbox (o), p, &p, end);
8131 if (err != ERR_NONE)
8134 buffer_add_objid (buf, o);
8138 return ERR_NOT_IMPLEMENTED;
8145 get_assembly_object_command (MonoDomain *domain, MonoAssembly *ass, Buffer *buf, MonoError *error)
8147 HANDLE_FUNCTION_ENTER();
8148 ErrorCode err = ERR_NONE;
8150 MonoReflectionAssemblyHandle o = mono_assembly_get_object_handle (domain, ass, error);
8151 if (MONO_HANDLE_IS_NULL (o)) {
8152 err = ERR_INVALID_OBJECT;
8155 buffer_add_objid (buf, MONO_HANDLE_RAW (MONO_HANDLE_CAST (MonoObject, o)));
8157 HANDLE_FUNCTION_RETURN_VAL (err);
8162 assembly_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8168 ass = decode_assemblyid (p, &p, end, &domain, &err);
8169 if (err != ERR_NONE)
8173 case CMD_ASSEMBLY_GET_LOCATION: {
8174 buffer_add_string (buf, mono_image_get_filename (ass->image));
8177 case CMD_ASSEMBLY_GET_ENTRY_POINT: {
8181 if (ass->image->dynamic) {
8182 buffer_add_id (buf, 0);
8184 token = mono_image_get_entry_point (ass->image);
8186 buffer_add_id (buf, 0);
8189 m = mono_get_method_checked (ass->image, token, NULL, NULL, &error);
8191 mono_error_cleanup (&error); /* FIXME don't swallow the error */
8192 buffer_add_methodid (buf, domain, m);
8197 case CMD_ASSEMBLY_GET_MANIFEST_MODULE: {
8198 buffer_add_moduleid (buf, domain, ass->image);
8201 case CMD_ASSEMBLY_GET_OBJECT: {
8203 err = get_assembly_object_command (domain, ass, buf, &error);
8204 mono_error_cleanup (&error);
8207 case CMD_ASSEMBLY_GET_DOMAIN: {
8208 buffer_add_domainid (buf, domain);
8211 case CMD_ASSEMBLY_GET_TYPE: {
8213 char *s = decode_string (p, &p, end);
8214 gboolean ignorecase = decode_byte (p, &p, end);
8215 MonoTypeNameParse info;
8217 gboolean type_resolve, res;
8218 MonoDomain *d = mono_domain_get ();
8220 /* This is needed to be able to find referenced assemblies */
8221 res = mono_domain_set (domain, FALSE);
8224 if (!mono_reflection_parse_type (s, &info)) {
8227 if (info.assembly.name)
8229 t = mono_reflection_get_type_checked (ass->image, ass->image, &info, ignorecase, &type_resolve, &error);
8230 if (!is_ok (&error)) {
8231 mono_error_cleanup (&error); /* FIXME don't swallow the error */
8232 mono_reflection_free_type_info (&info);
8234 return ERR_INVALID_ARGUMENT;
8237 buffer_add_typeid (buf, domain, t ? mono_class_from_mono_type (t) : NULL);
8238 mono_reflection_free_type_info (&info);
8241 mono_domain_set (d, TRUE);
8245 case CMD_ASSEMBLY_GET_NAME: {
8247 MonoAssembly *mass = ass;
8249 name = g_strdup_printf (
8250 "%s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
8252 mass->aname.major, mass->aname.minor, mass->aname.build, mass->aname.revision,
8253 mass->aname.culture && *mass->aname.culture? mass->aname.culture: "neutral",
8254 mass->aname.public_key_token [0] ? (char *)mass->aname.public_key_token : "null",
8255 (mass->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
8257 buffer_add_string (buf, name);
8262 return ERR_NOT_IMPLEMENTED;
8269 module_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8275 case CMD_MODULE_GET_INFO: {
8276 MonoImage *image = decode_moduleid (p, &p, end, &domain, &err);
8279 basename = g_path_get_basename (image->name);
8280 buffer_add_string (buf, basename); // name
8281 buffer_add_string (buf, image->module_name); // scopename
8282 buffer_add_string (buf, image->name); // fqname
8283 buffer_add_string (buf, mono_image_get_guid (image)); // guid
8284 buffer_add_assemblyid (buf, domain, image->assembly); // assembly
8289 return ERR_NOT_IMPLEMENTED;
8296 field_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8302 case CMD_FIELD_GET_INFO: {
8303 MonoClassField *f = decode_fieldid (p, &p, end, &domain, &err);
8305 buffer_add_string (buf, f->name);
8306 buffer_add_typeid (buf, domain, f->parent);
8307 buffer_add_typeid (buf, domain, mono_class_from_mono_type (f->type));
8308 buffer_add_int (buf, f->type->attrs);
8312 return ERR_NOT_IMPLEMENTED;
8319 buffer_add_cattr_arg (Buffer *buf, MonoType *t, MonoDomain *domain, MonoObject *val)
8321 if (val && val->vtable->klass == mono_defaults.runtimetype_class) {
8322 /* Special case these so the client doesn't have to handle Type objects */
8324 buffer_add_byte (buf, VALUE_TYPE_ID_TYPE);
8325 buffer_add_typeid (buf, domain, mono_class_from_mono_type (((MonoReflectionType*)val)->type));
8326 } else if (MONO_TYPE_IS_REFERENCE (t))
8327 buffer_add_value (buf, t, &val, domain);
8329 buffer_add_value (buf, t, mono_object_unbox (val), domain);
8333 buffer_add_cattrs (Buffer *buf, MonoDomain *domain, MonoImage *image, MonoClass *attr_klass, MonoCustomAttrInfo *cinfo)
8339 buffer_add_int (buf, 0);
8343 for (i = 0; i < cinfo->num_attrs; ++i) {
8344 if (!attr_klass || mono_class_has_parent (cinfo->attrs [i].ctor->klass, attr_klass))
8347 buffer_add_int (buf, nattrs);
8349 for (i = 0; i < cinfo->num_attrs; ++i) {
8350 MonoCustomAttrEntry *attr = &cinfo->attrs [i];
8351 if (!attr_klass || mono_class_has_parent (attr->ctor->klass, attr_klass)) {
8352 MonoArray *typed_args, *named_args;
8354 CattrNamedArg *arginfo = NULL;
8357 mono_reflection_create_custom_attr_data_args (image, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
8358 if (!mono_error_ok (&error)) {
8359 DEBUG_PRINTF (2, "[dbg] mono_reflection_create_custom_attr_data_args () failed with: '%s'\n", mono_error_get_message (&error));
8360 mono_error_cleanup (&error);
8361 return ERR_LOADER_ERROR;
8364 buffer_add_methodid (buf, domain, attr->ctor);
8368 buffer_add_int (buf, mono_array_length (typed_args));
8369 for (j = 0; j < mono_array_length (typed_args); ++j) {
8370 MonoObject *val = mono_array_get (typed_args, MonoObject*, j);
8372 t = mono_method_signature (attr->ctor)->params [j];
8374 buffer_add_cattr_arg (buf, t, domain, val);
8377 buffer_add_int (buf, 0);
8382 buffer_add_int (buf, mono_array_length (named_args));
8384 for (j = 0; j < mono_array_length (named_args); ++j) {
8385 MonoObject *val = mono_array_get (named_args, MonoObject*, j);
8387 if (arginfo [j].prop) {
8388 buffer_add_byte (buf, 0x54);
8389 buffer_add_propertyid (buf, domain, arginfo [j].prop);
8390 } else if (arginfo [j].field) {
8391 buffer_add_byte (buf, 0x53);
8392 buffer_add_fieldid (buf, domain, arginfo [j].field);
8394 g_assert_not_reached ();
8397 buffer_add_cattr_arg (buf, arginfo [j].type, domain, val);
8400 buffer_add_int (buf, 0);
8409 /* FIXME: Code duplication with icall.c */
8411 collect_interfaces (MonoClass *klass, GHashTable *ifaces, MonoError *error)
8416 mono_class_setup_interfaces (klass, error);
8417 if (!mono_error_ok (error))
8420 for (i = 0; i < klass->interface_count; i++) {
8421 ic = klass->interfaces [i];
8422 g_hash_table_insert (ifaces, ic, ic);
8424 collect_interfaces (ic, ifaces, error);
8425 if (!mono_error_ok (error))
8431 type_commands_internal (int command, MonoClass *klass, MonoDomain *domain, guint8 *p, guint8 *end, Buffer *buf)
8443 case CMD_TYPE_GET_INFO: {
8444 buffer_add_string (buf, klass->name_space);
8445 buffer_add_string (buf, klass->name);
8447 name = mono_type_get_name_full (&klass->byval_arg, MONO_TYPE_NAME_FORMAT_FULL_NAME);
8448 buffer_add_string (buf, name);
8450 buffer_add_assemblyid (buf, domain, klass->image->assembly);
8451 buffer_add_moduleid (buf, domain, klass->image);
8452 buffer_add_typeid (buf, domain, klass->parent);
8453 if (klass->rank || klass->byval_arg.type == MONO_TYPE_PTR)
8454 buffer_add_typeid (buf, domain, klass->element_class);
8456 buffer_add_id (buf, 0);
8457 buffer_add_int (buf, klass->type_token);
8458 buffer_add_byte (buf, klass->rank);
8459 buffer_add_int (buf, mono_class_get_flags (klass));
8461 type = &klass->byval_arg;
8462 // FIXME: Can't decide whenever a class represents a byref type
8465 if (type->type == MONO_TYPE_PTR)
8467 if (!type->byref && (((type->type >= MONO_TYPE_BOOLEAN) && (type->type <= MONO_TYPE_R8)) || (type->type == MONO_TYPE_I) || (type->type == MONO_TYPE_U)))
8469 if (type->type == MONO_TYPE_VALUETYPE)
8471 if (klass->enumtype)
8473 if (mono_class_is_gtd (klass))
8475 if (mono_class_is_gtd (klass) || mono_class_is_ginst (klass))
8477 buffer_add_byte (buf, b);
8480 while ((nested = mono_class_get_nested_types (klass, &iter)))
8482 buffer_add_int (buf, nnested);
8484 while ((nested = mono_class_get_nested_types (klass, &iter)))
8485 buffer_add_typeid (buf, domain, nested);
8486 if (CHECK_PROTOCOL_VERSION (2, 12)) {
8487 if (mono_class_is_gtd (klass))
8488 buffer_add_typeid (buf, domain, klass);
8489 else if (mono_class_is_ginst (klass))
8490 buffer_add_typeid (buf, domain, mono_class_get_generic_class (klass)->container_class);
8492 buffer_add_id (buf, 0);
8494 if (CHECK_PROTOCOL_VERSION (2, 15)) {
8497 if (mono_class_is_ginst (klass)) {
8498 MonoGenericInst *inst = mono_class_get_generic_class (klass)->context.class_inst;
8500 count = inst->type_argc;
8501 buffer_add_int (buf, count);
8502 for (i = 0; i < count; i++)
8503 buffer_add_typeid (buf, domain, mono_class_from_mono_type (inst->type_argv [i]));
8504 } else if (mono_class_is_gtd (klass)) {
8505 MonoGenericContainer *container = mono_class_get_generic_container (klass);
8508 count = container->type_argc;
8509 buffer_add_int (buf, count);
8510 for (i = 0; i < count; i++) {
8511 pklass = mono_class_from_generic_parameter_internal (mono_generic_container_get_param (container, i));
8512 buffer_add_typeid (buf, domain, pklass);
8515 buffer_add_int (buf, 0);
8520 case CMD_TYPE_GET_METHODS: {
8523 gpointer iter = NULL;
8526 mono_class_setup_methods (klass);
8528 nmethods = mono_class_num_methods (klass);
8530 buffer_add_int (buf, nmethods);
8532 while ((m = mono_class_get_methods (klass, &iter))) {
8533 buffer_add_methodid (buf, domain, m);
8536 g_assert (i == nmethods);
8539 case CMD_TYPE_GET_FIELDS: {
8542 gpointer iter = NULL;
8545 nfields = mono_class_num_fields (klass);
8547 buffer_add_int (buf, nfields);
8549 while ((f = mono_class_get_fields (klass, &iter))) {
8550 buffer_add_fieldid (buf, domain, f);
8551 buffer_add_string (buf, f->name);
8552 buffer_add_typeid (buf, domain, mono_class_from_mono_type (f->type));
8553 buffer_add_int (buf, f->type->attrs);
8556 g_assert (i == nfields);
8559 case CMD_TYPE_GET_PROPERTIES: {
8562 gpointer iter = NULL;
8565 nprops = mono_class_num_properties (klass);
8567 buffer_add_int (buf, nprops);
8569 while ((p = mono_class_get_properties (klass, &iter))) {
8570 buffer_add_propertyid (buf, domain, p);
8571 buffer_add_string (buf, p->name);
8572 buffer_add_methodid (buf, domain, p->get);
8573 buffer_add_methodid (buf, domain, p->set);
8574 buffer_add_int (buf, p->attrs);
8577 g_assert (i == nprops);
8580 case CMD_TYPE_GET_CATTRS: {
8581 MonoClass *attr_klass;
8582 MonoCustomAttrInfo *cinfo;
8584 attr_klass = decode_typeid (p, &p, end, NULL, &err);
8585 /* attr_klass can be NULL */
8586 if (err != ERR_NONE)
8589 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
8590 if (!is_ok (&error)) {
8591 mono_error_cleanup (&error); /* FIXME don't swallow the error message */
8592 return ERR_LOADER_ERROR;
8595 err = buffer_add_cattrs (buf, domain, klass->image, attr_klass, cinfo);
8596 if (err != ERR_NONE)
8600 case CMD_TYPE_GET_FIELD_CATTRS: {
8601 MonoClass *attr_klass;
8602 MonoCustomAttrInfo *cinfo;
8603 MonoClassField *field;
8605 field = decode_fieldid (p, &p, end, NULL, &err);
8606 if (err != ERR_NONE)
8608 attr_klass = decode_typeid (p, &p, end, NULL, &err);
8609 if (err != ERR_NONE)
8612 cinfo = mono_custom_attrs_from_field_checked (klass, field, &error);
8613 if (!is_ok (&error)) {
8614 mono_error_cleanup (&error); /* FIXME don't swallow the error message */
8615 return ERR_LOADER_ERROR;
8618 err = buffer_add_cattrs (buf, domain, klass->image, attr_klass, cinfo);
8619 if (err != ERR_NONE)
8623 case CMD_TYPE_GET_PROPERTY_CATTRS: {
8624 MonoClass *attr_klass;
8625 MonoCustomAttrInfo *cinfo;
8628 prop = decode_propertyid (p, &p, end, NULL, &err);
8629 if (err != ERR_NONE)
8631 attr_klass = decode_typeid (p, &p, end, NULL, &err);
8632 if (err != ERR_NONE)
8635 cinfo = mono_custom_attrs_from_property_checked (klass, prop, &error);
8636 if (!is_ok (&error)) {
8637 mono_error_cleanup (&error); /* FIXME don't swallow the error message */
8638 return ERR_LOADER_ERROR;
8641 err = buffer_add_cattrs (buf, domain, klass->image, attr_klass, cinfo);
8642 if (err != ERR_NONE)
8646 case CMD_TYPE_GET_VALUES:
8647 case CMD_TYPE_GET_VALUES_2: {
8654 MonoThread *thread_obj;
8655 MonoInternalThread *thread = NULL;
8656 guint32 special_static_type;
8658 if (command == CMD_TYPE_GET_VALUES_2) {
8659 int objid = decode_objid (p, &p, end);
8662 err = get_object (objid, (MonoObject**)&thread_obj);
8663 if (err != ERR_NONE)
8666 thread = THREAD_TO_INTERNAL (thread_obj);
8669 len = decode_int (p, &p, end);
8670 for (i = 0; i < len; ++i) {
8671 f = decode_fieldid (p, &p, end, NULL, &err);
8672 if (err != ERR_NONE)
8675 if (!(f->type->attrs & FIELD_ATTRIBUTE_STATIC))
8676 return ERR_INVALID_FIELDID;
8677 special_static_type = mono_class_field_get_special_static_type (f);
8678 if (special_static_type != SPECIAL_STATIC_NONE) {
8679 if (!(thread && special_static_type == SPECIAL_STATIC_THREAD))
8680 return ERR_INVALID_FIELDID;
8683 /* Check that the field belongs to the object */
8685 for (k = klass; k; k = k->parent) {
8686 if (k == f->parent) {
8692 return ERR_INVALID_FIELDID;
8694 vtable = mono_class_vtable (domain, f->parent);
8695 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
8696 mono_field_static_get_value_for_thread (thread ? thread : mono_thread_internal_current (), vtable, f, val, &error);
8697 if (!is_ok (&error))
8698 return ERR_INVALID_FIELDID;
8699 buffer_add_value (buf, f->type, val, domain);
8704 case CMD_TYPE_SET_VALUES: {
8712 len = decode_int (p, &p, end);
8713 for (i = 0; i < len; ++i) {
8714 f = decode_fieldid (p, &p, end, NULL, &err);
8715 if (err != ERR_NONE)
8718 if (!(f->type->attrs & FIELD_ATTRIBUTE_STATIC))
8719 return ERR_INVALID_FIELDID;
8720 if (mono_class_field_is_special_static (f))
8721 return ERR_INVALID_FIELDID;
8723 /* Check that the field belongs to the object */
8725 for (k = klass; k; k = k->parent) {
8726 if (k == f->parent) {
8732 return ERR_INVALID_FIELDID;
8734 // FIXME: Check for literal/const
8736 vtable = mono_class_vtable (domain, f->parent);
8737 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
8738 err = decode_value (f->type, domain, val, p, &p, end);
8739 if (err != ERR_NONE) {
8743 if (MONO_TYPE_IS_REFERENCE (f->type))
8744 mono_field_static_set_value (vtable, f, *(gpointer*)val);
8746 mono_field_static_set_value (vtable, f, val);
8751 case CMD_TYPE_GET_OBJECT: {
8752 MonoObject *o = (MonoObject*)mono_type_get_object_checked (domain, &klass->byval_arg, &error);
8753 if (!mono_error_ok (&error)) {
8754 mono_error_cleanup (&error);
8755 return ERR_INVALID_OBJECT;
8757 buffer_add_objid (buf, o);
8760 case CMD_TYPE_GET_SOURCE_FILES:
8761 case CMD_TYPE_GET_SOURCE_FILES_2: {
8762 char *source_file, *base;
8766 files = get_source_files_for_type (klass);
8768 buffer_add_int (buf, files->len);
8769 for (i = 0; i < files->len; ++i) {
8770 source_file = (char *)g_ptr_array_index (files, i);
8771 if (command == CMD_TYPE_GET_SOURCE_FILES_2) {
8772 buffer_add_string (buf, source_file);
8774 base = dbg_path_get_basename (source_file);
8775 buffer_add_string (buf, base);
8778 g_free (source_file);
8780 g_ptr_array_free (files, TRUE);
8783 case CMD_TYPE_IS_ASSIGNABLE_FROM: {
8784 MonoClass *oklass = decode_typeid (p, &p, end, NULL, &err);
8786 if (err != ERR_NONE)
8788 if (mono_class_is_assignable_from (klass, oklass))
8789 buffer_add_byte (buf, 1);
8791 buffer_add_byte (buf, 0);
8794 case CMD_TYPE_GET_METHODS_BY_NAME_FLAGS: {
8795 char *name = decode_string (p, &p, end);
8796 int i, flags = decode_int (p, &p, end);
8800 error_init (&error);
8801 array = mono_class_get_methods_by_name (klass, name, flags & ~BINDING_FLAGS_IGNORE_CASE, (flags & BINDING_FLAGS_IGNORE_CASE) != 0, TRUE, &error);
8802 if (!is_ok (&error)) {
8803 mono_error_cleanup (&error);
8804 return ERR_LOADER_ERROR;
8806 buffer_add_int (buf, array->len);
8807 for (i = 0; i < array->len; ++i) {
8808 MonoMethod *method = (MonoMethod *)g_ptr_array_index (array, i);
8809 buffer_add_methodid (buf, domain, method);
8812 g_ptr_array_free (array, TRUE);
8816 case CMD_TYPE_GET_INTERFACES: {
8818 GHashTable *iface_hash = g_hash_table_new (NULL, NULL);
8819 MonoClass *tclass, *iface;
8820 GHashTableIter iter;
8824 for (parent = tclass; parent; parent = parent->parent) {
8825 mono_class_setup_interfaces (parent, &error);
8826 if (!mono_error_ok (&error))
8827 return ERR_LOADER_ERROR;
8828 collect_interfaces (parent, iface_hash, &error);
8829 if (!mono_error_ok (&error))
8830 return ERR_LOADER_ERROR;
8833 buffer_add_int (buf, g_hash_table_size (iface_hash));
8835 g_hash_table_iter_init (&iter, iface_hash);
8836 while (g_hash_table_iter_next (&iter, NULL, (void**)&iface))
8837 buffer_add_typeid (buf, domain, iface);
8838 g_hash_table_destroy (iface_hash);
8841 case CMD_TYPE_GET_INTERFACE_MAP: {
8842 int tindex, ioffset;
8843 gboolean variance_used;
8845 int len, nmethods, i;
8849 len = decode_int (p, &p, end);
8850 mono_class_setup_vtable (klass);
8852 for (tindex = 0; tindex < len; ++tindex) {
8853 iclass = decode_typeid (p, &p, end, NULL, &err);
8854 if (err != ERR_NONE)
8857 ioffset = mono_class_interface_offset_with_variance (klass, iclass, &variance_used);
8859 return ERR_INVALID_ARGUMENT;
8861 nmethods = mono_class_num_methods (iclass);
8862 buffer_add_int (buf, nmethods);
8865 while ((method = mono_class_get_methods (iclass, &iter))) {
8866 buffer_add_methodid (buf, domain, method);
8868 for (i = 0; i < nmethods; ++i)
8869 buffer_add_methodid (buf, domain, klass->vtable [i + ioffset]);
8873 case CMD_TYPE_IS_INITIALIZED: {
8874 MonoVTable *vtable = mono_class_vtable (domain, klass);
8877 buffer_add_int (buf, (vtable->initialized || vtable->init_failed) ? 1 : 0);
8879 buffer_add_int (buf, 0);
8882 case CMD_TYPE_CREATE_INSTANCE: {
8886 obj = mono_object_new_checked (domain, klass, &error);
8887 mono_error_assert_ok (&error);
8888 buffer_add_objid (buf, obj);
8892 return ERR_NOT_IMPLEMENTED;
8899 type_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8902 MonoDomain *old_domain;
8906 klass = decode_typeid (p, &p, end, &domain, &err);
8907 if (err != ERR_NONE)
8910 old_domain = mono_domain_get ();
8912 mono_domain_set (domain, TRUE);
8914 err = type_commands_internal (command, klass, domain, p, end, buf);
8916 mono_domain_set (old_domain, TRUE);
8922 method_commands_internal (int command, MonoMethod *method, MonoDomain *domain, guint8 *p, guint8 *end, Buffer *buf)
8924 MonoMethodHeader *header;
8928 case CMD_METHOD_GET_NAME: {
8929 buffer_add_string (buf, method->name);
8932 case CMD_METHOD_GET_DECLARING_TYPE: {
8933 buffer_add_typeid (buf, domain, method->klass);
8936 case CMD_METHOD_GET_DEBUG_INFO: {
8938 MonoDebugMethodInfo *minfo;
8940 int i, j, n_il_offsets;
8942 GPtrArray *source_file_list;
8943 MonoSymSeqPoint *sym_seq_points;
8945 header = mono_method_get_header_checked (method, &error);
8947 mono_error_cleanup (&error); /* FIXME don't swallow the error */
8948 buffer_add_int (buf, 0);
8949 buffer_add_string (buf, "");
8950 buffer_add_int (buf, 0);
8954 minfo = mono_debug_lookup_method (method);
8956 buffer_add_int (buf, header->code_size);
8957 buffer_add_string (buf, "");
8958 buffer_add_int (buf, 0);
8959 mono_metadata_free_mh (header);
8963 mono_debug_get_seq_points (minfo, &source_file, &source_file_list, &source_files, &sym_seq_points, &n_il_offsets);
8964 buffer_add_int (buf, header->code_size);
8965 if (CHECK_PROTOCOL_VERSION (2, 13)) {
8966 buffer_add_int (buf, source_file_list->len);
8967 for (i = 0; i < source_file_list->len; ++i) {
8968 MonoDebugSourceInfo *sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, i);
8969 buffer_add_string (buf, sinfo->source_file);
8970 if (CHECK_PROTOCOL_VERSION (2, 14)) {
8971 for (j = 0; j < 16; ++j)
8972 buffer_add_byte (buf, sinfo->hash [j]);
8976 buffer_add_string (buf, source_file);
8978 buffer_add_int (buf, n_il_offsets);
8979 DEBUG_PRINTF (10, "Line number table for method %s:\n", mono_method_full_name (method, TRUE));
8980 for (i = 0; i < n_il_offsets; ++i) {
8981 MonoSymSeqPoint *sp = &sym_seq_points [i];
8982 const char *srcfile = "";
8984 if (source_files [i] != -1) {
8985 MonoDebugSourceInfo *sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, source_files [i]);
8986 srcfile = sinfo->source_file;
8988 DEBUG_PRINTF (10, "IL%x -> %s:%d %d %d %d\n", sp->il_offset, srcfile, sp->line, sp->column, sp->end_line, sp->end_column);
8989 buffer_add_int (buf, sp->il_offset);
8990 buffer_add_int (buf, sp->line);
8991 if (CHECK_PROTOCOL_VERSION (2, 13))
8992 buffer_add_int (buf, source_files [i]);
8993 if (CHECK_PROTOCOL_VERSION (2, 19))
8994 buffer_add_int (buf, sp->column);
8995 if (CHECK_PROTOCOL_VERSION (2, 32)) {
8996 buffer_add_int (buf, sp->end_line);
8997 buffer_add_int (buf, sp->end_column);
9000 g_free (source_file);
9001 g_free (source_files);
9002 g_free (sym_seq_points);
9003 g_ptr_array_free (source_file_list, TRUE);
9004 mono_metadata_free_mh (header);
9007 case CMD_METHOD_GET_PARAM_INFO: {
9008 MonoMethodSignature *sig = mono_method_signature (method);
9012 /* FIXME: mono_class_from_mono_type () and byrefs */
9014 /* FIXME: Use a smaller encoding */
9015 buffer_add_int (buf, sig->call_convention);
9016 buffer_add_int (buf, sig->param_count);
9017 buffer_add_int (buf, sig->generic_param_count);
9018 buffer_add_typeid (buf, domain, mono_class_from_mono_type (sig->ret));
9019 for (i = 0; i < sig->param_count; ++i) {
9021 buffer_add_typeid (buf, domain, mono_class_from_mono_type (sig->params [i]));
9024 /* Emit parameter names */
9025 names = g_new (char *, sig->param_count);
9026 mono_method_get_param_names (method, (const char **) names);
9027 for (i = 0; i < sig->param_count; ++i)
9028 buffer_add_string (buf, names [i]);
9033 case CMD_METHOD_GET_LOCALS_INFO: {
9036 MonoDebugLocalsInfo *locals;
9037 int *locals_map = NULL;
9039 header = mono_method_get_header_checked (method, &error);
9041 mono_error_cleanup (&error); /* FIXME don't swallow the error */
9042 return ERR_INVALID_ARGUMENT;
9045 locals = mono_debug_lookup_locals (method);
9047 if (CHECK_PROTOCOL_VERSION (2, 43)) {
9049 buffer_add_int (buf, 1);
9050 buffer_add_int (buf, 0);
9051 buffer_add_int (buf, header->code_size);
9053 buffer_add_int (buf, header->num_locals);
9055 for (i = 0; i < header->num_locals; ++i) {
9056 buffer_add_typeid (buf, domain, mono_class_from_mono_type (header->locals [i]));
9059 for (i = 0; i < header->num_locals; ++i) {
9061 sprintf (lname, "V_%d", i);
9062 buffer_add_string (buf, lname);
9065 for (i = 0; i < header->num_locals; ++i) {
9066 buffer_add_int (buf, 0);
9067 buffer_add_int (buf, header->code_size);
9070 if (CHECK_PROTOCOL_VERSION (2, 43)) {
9072 buffer_add_int (buf, locals->num_blocks);
9074 for (i = 0; i < locals->num_blocks; ++i) {
9075 buffer_add_int (buf, locals->code_blocks [i].start_offset - last_start);
9076 buffer_add_int (buf, locals->code_blocks [i].end_offset - locals->code_blocks [i].start_offset);
9077 last_start = locals->code_blocks [i].start_offset;
9081 num_locals = locals->num_locals;
9082 buffer_add_int (buf, num_locals);
9085 for (i = 0; i < num_locals; ++i) {
9086 g_assert (locals->locals [i].index < header->num_locals);
9087 buffer_add_typeid (buf, domain, mono_class_from_mono_type (header->locals [locals->locals [i].index]));
9090 for (i = 0; i < num_locals; ++i)
9091 buffer_add_string (buf, locals->locals [i].name);
9093 for (i = 0; i < num_locals; ++i) {
9094 if (locals->locals [i].block) {
9095 buffer_add_int (buf, locals->locals [i].block->start_offset);
9096 buffer_add_int (buf, locals->locals [i].block->end_offset);
9098 buffer_add_int (buf, 0);
9099 buffer_add_int (buf, header->code_size);
9103 mono_metadata_free_mh (header);
9106 mono_debug_free_locals (locals);
9107 g_free (locals_map);
9111 case CMD_METHOD_GET_INFO:
9112 buffer_add_int (buf, method->flags);
9113 buffer_add_int (buf, method->iflags);
9114 buffer_add_int (buf, method->token);
9115 if (CHECK_PROTOCOL_VERSION (2, 12)) {
9117 if (method->is_generic)
9119 if (mono_method_signature (method)->generic_param_count)
9121 buffer_add_byte (buf, attrs);
9122 if (method->is_generic || method->is_inflated) {
9125 if (method->is_generic) {
9128 MonoMethodInflated *imethod = (MonoMethodInflated *)method;
9130 result = imethod->declaring;
9131 if (imethod->context.class_inst) {
9132 MonoClass *klass = ((MonoMethod *) imethod)->klass;
9133 /*Generic methods gets the context of the GTD.*/
9134 if (mono_class_get_context (klass)) {
9136 result = mono_class_inflate_generic_method_full_checked (result, klass, mono_class_get_context (klass), &error);
9137 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9142 buffer_add_methodid (buf, domain, result);
9144 buffer_add_id (buf, 0);
9146 if (CHECK_PROTOCOL_VERSION (2, 15)) {
9147 if (mono_method_signature (method)->generic_param_count) {
9150 if (method->is_inflated) {
9151 MonoGenericInst *inst = mono_method_get_context (method)->method_inst;
9153 count = inst->type_argc;
9154 buffer_add_int (buf, count);
9156 for (i = 0; i < count; i++)
9157 buffer_add_typeid (buf, domain, mono_class_from_mono_type (inst->type_argv [i]));
9159 buffer_add_int (buf, 0);
9161 } else if (method->is_generic) {
9162 MonoGenericContainer *container = mono_method_get_generic_container (method);
9164 count = mono_method_signature (method)->generic_param_count;
9165 buffer_add_int (buf, count);
9166 for (i = 0; i < count; i++) {
9167 MonoGenericParam *param = mono_generic_container_get_param (container, i);
9168 MonoClass *pklass = mono_class_from_generic_parameter_internal (param);
9169 buffer_add_typeid (buf, domain, pklass);
9172 buffer_add_int (buf, 0);
9175 buffer_add_int (buf, 0);
9180 case CMD_METHOD_GET_BODY: {
9184 header = mono_method_get_header_checked (method, &error);
9186 mono_error_cleanup (&error); /* FIXME don't swallow the error */
9187 buffer_add_int (buf, 0);
9189 if (CHECK_PROTOCOL_VERSION (2, 18))
9190 buffer_add_int (buf, 0);
9192 buffer_add_int (buf, header->code_size);
9193 for (i = 0; i < header->code_size; ++i)
9194 buffer_add_byte (buf, header->code [i]);
9196 if (CHECK_PROTOCOL_VERSION (2, 18)) {
9197 buffer_add_int (buf, header->num_clauses);
9198 for (i = 0; i < header->num_clauses; ++i) {
9199 MonoExceptionClause *clause = &header->clauses [i];
9201 buffer_add_int (buf, clause->flags);
9202 buffer_add_int (buf, clause->try_offset);
9203 buffer_add_int (buf, clause->try_len);
9204 buffer_add_int (buf, clause->handler_offset);
9205 buffer_add_int (buf, clause->handler_len);
9206 if (clause->flags == MONO_EXCEPTION_CLAUSE_NONE)
9207 buffer_add_typeid (buf, domain, clause->data.catch_class);
9208 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FILTER)
9209 buffer_add_int (buf, clause->data.filter_offset);
9213 mono_metadata_free_mh (header);
9218 case CMD_METHOD_RESOLVE_TOKEN: {
9219 guint32 token = decode_int (p, &p, end);
9222 switch (mono_metadata_token_code (token)) {
9223 case MONO_TOKEN_STRING: {
9228 s = mono_ldstr_checked (domain, method->klass->image, mono_metadata_token_index (token), &error);
9229 mono_error_assert_ok (&error); /* FIXME don't swallow the error */
9231 s2 = mono_string_to_utf8_checked (s, &error);
9232 mono_error_assert_ok (&error);
9234 buffer_add_byte (buf, TOKEN_TYPE_STRING);
9235 buffer_add_string (buf, s2);
9242 MonoClass *handle_class;
9244 if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) {
9245 val = mono_method_get_wrapper_data (method, token);
9246 handle_class = (MonoClass *)mono_method_get_wrapper_data (method, token + 1);
9248 if (handle_class == NULL) {
9249 // Can't figure out the token type
9250 buffer_add_byte (buf, TOKEN_TYPE_UNKNOWN);
9254 val = mono_ldtoken_checked (method->klass->image, token, &handle_class, NULL, &error);
9256 g_error ("Could not load token due to %s", mono_error_get_message (&error));
9259 if (handle_class == mono_defaults.typehandle_class) {
9260 buffer_add_byte (buf, TOKEN_TYPE_TYPE);
9261 if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
9262 buffer_add_typeid (buf, domain, (MonoClass *) val);
9264 buffer_add_typeid (buf, domain, mono_class_from_mono_type ((MonoType*)val));
9265 } else if (handle_class == mono_defaults.fieldhandle_class) {
9266 buffer_add_byte (buf, TOKEN_TYPE_FIELD);
9267 buffer_add_fieldid (buf, domain, (MonoClassField *)val);
9268 } else if (handle_class == mono_defaults.methodhandle_class) {
9269 buffer_add_byte (buf, TOKEN_TYPE_METHOD);
9270 buffer_add_methodid (buf, domain, (MonoMethod *)val);
9271 } else if (handle_class == mono_defaults.string_class) {
9274 s = mono_string_to_utf8_checked ((MonoString *)val, &error);
9275 mono_error_assert_ok (&error);
9276 buffer_add_byte (buf, TOKEN_TYPE_STRING);
9277 buffer_add_string (buf, s);
9280 g_assert_not_reached ();
9287 case CMD_METHOD_GET_CATTRS: {
9289 MonoClass *attr_klass;
9290 MonoCustomAttrInfo *cinfo;
9292 attr_klass = decode_typeid (p, &p, end, NULL, &err);
9293 /* attr_klass can be NULL */
9294 if (err != ERR_NONE)
9297 cinfo = mono_custom_attrs_from_method_checked (method, &error);
9298 if (!is_ok (&error)) {
9299 mono_error_cleanup (&error); /* FIXME don't swallow the error message */
9300 return ERR_LOADER_ERROR;
9303 err = buffer_add_cattrs (buf, domain, method->klass->image, attr_klass, cinfo);
9304 if (err != ERR_NONE)
9308 case CMD_METHOD_MAKE_GENERIC_METHOD: {
9310 MonoType **type_argv;
9314 MonoGenericInst *ginst;
9315 MonoGenericContext tmp_context;
9316 MonoMethod *inflated;
9318 type_argc = decode_int (p, &p, end);
9319 type_argv = g_new0 (MonoType*, type_argc);
9320 for (i = 0; i < type_argc; ++i) {
9321 klass = decode_typeid (p, &p, end, &d, &err);
9322 if (err != ERR_NONE) {
9328 return ERR_INVALID_ARGUMENT;
9330 type_argv [i] = &klass->byval_arg;
9332 ginst = mono_metadata_get_generic_inst (type_argc, type_argv);
9334 tmp_context.class_inst = mono_class_is_ginst (method->klass) ? mono_class_get_generic_class (method->klass)->context.class_inst : NULL;
9335 tmp_context.method_inst = ginst;
9337 inflated = mono_class_inflate_generic_method_checked (method, &tmp_context, &error);
9338 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
9339 if (!mono_verifier_is_method_valid_generic_instantiation (inflated))
9340 return ERR_INVALID_ARGUMENT;
9341 buffer_add_methodid (buf, domain, inflated);
9345 return ERR_NOT_IMPLEMENTED;
9352 method_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9355 MonoDomain *old_domain;
9359 method = decode_methodid (p, &p, end, &domain, &err);
9360 if (err != ERR_NONE)
9363 old_domain = mono_domain_get ();
9365 mono_domain_set (domain, TRUE);
9367 err = method_commands_internal (command, method, domain, p, end, buf);
9369 mono_domain_set (old_domain, TRUE);
9375 thread_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9377 int objid = decode_objid (p, &p, end);
9379 MonoThread *thread_obj;
9380 MonoInternalThread *thread;
9382 err = get_object (objid, (MonoObject**)&thread_obj);
9383 if (err != ERR_NONE)
9386 thread = THREAD_TO_INTERNAL (thread_obj);
9389 case CMD_THREAD_GET_NAME: {
9391 gunichar2 *s = mono_thread_get_name (thread, &name_len);
9394 buffer_add_int (buf, 0);
9399 name = g_utf16_to_utf8 (s, name_len, NULL, &len, NULL);
9401 buffer_add_int (buf, len);
9402 buffer_add_data (buf, (guint8*)name, len);
9407 case CMD_THREAD_GET_FRAME_INFO: {
9408 DebuggerTlsData *tls;
9409 int i, start_frame, length;
9411 // Wait for suspending if it already started
9412 // FIXME: Races with suspend_count
9413 while (!is_suspended ()) {
9415 wait_for_suspend ();
9419 wait_for_suspend ();
9420 if (!is_suspended ())
9421 return ERR_NOT_SUSPENDED;
9424 start_frame = decode_int (p, &p, end);
9425 length = decode_int (p, &p, end);
9427 if (start_frame != 0 || length != -1)
9428 return ERR_NOT_IMPLEMENTED;
9430 mono_loader_lock ();
9431 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
9432 mono_loader_unlock ();
9435 compute_frame_info (thread, tls);
9437 buffer_add_int (buf, tls->frame_count);
9438 for (i = 0; i < tls->frame_count; ++i) {
9439 buffer_add_int (buf, tls->frames [i]->id);
9440 buffer_add_methodid (buf, tls->frames [i]->domain, tls->frames [i]->actual_method);
9441 buffer_add_int (buf, tls->frames [i]->il_offset);
9443 * Instead of passing the frame type directly to the client, we associate
9444 * it with the previous frame using a set of flags. This avoids lots of
9445 * conditional code in the client, since a frame whose type isn't
9446 * FRAME_TYPE_MANAGED has no method, location, etc.
9448 buffer_add_byte (buf, tls->frames [i]->flags);
9453 case CMD_THREAD_GET_STATE:
9454 buffer_add_int (buf, thread->state);
9456 case CMD_THREAD_GET_INFO:
9457 buffer_add_byte (buf, thread->threadpool_thread);
9459 case CMD_THREAD_GET_ID:
9460 buffer_add_long (buf, (guint64)(gsize)thread);
9462 case CMD_THREAD_GET_TID:
9463 buffer_add_long (buf, (guint64)thread->tid);
9465 case CMD_THREAD_SET_IP: {
9466 DebuggerTlsData *tls;
9469 MonoSeqPointInfo *seq_points;
9474 method = decode_methodid (p, &p, end, &domain, &err);
9475 if (err != ERR_NONE)
9477 il_offset = decode_long (p, &p, end);
9479 while (!is_suspended ()) {
9481 wait_for_suspend ();
9484 mono_loader_lock ();
9485 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
9486 mono_loader_unlock ();
9489 compute_frame_info (thread, tls);
9490 if (tls->frame_count == 0 || tls->frames [0]->actual_method != method)
9491 return ERR_INVALID_ARGUMENT;
9493 found_sp = mono_find_seq_point (domain, method, il_offset, &seq_points, &sp);
9495 g_assert (seq_points);
9498 return ERR_INVALID_ARGUMENT;
9500 // FIXME: Check that the ip change is safe
9502 DEBUG_PRINTF (1, "[dbg] Setting IP to %s:0x%0x(0x%0x)\n", tls->frames [0]->actual_method->name, (int)sp.il_offset, (int)sp.native_offset);
9504 if (tls->frames [0]->ji->is_interp) {
9505 MonoJitTlsData *jit_data = ((MonoThreadInfo*)thread->thread_info)->jit_data;
9506 mono_interp_set_resume_state (jit_data, NULL, tls->frames [0]->interp_frame, (guint8*)tls->frames [0]->ji->code_start + sp.native_offset);
9508 MONO_CONTEXT_SET_IP (&tls->restore_state.ctx, (guint8*)tls->frames [0]->ji->code_start + sp.native_offset);
9513 return ERR_NOT_IMPLEMENTED;
9520 frame_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9524 MonoThread *thread_obj;
9525 MonoInternalThread *thread;
9526 int pos, i, len, frame_idx;
9527 DebuggerTlsData *tls;
9529 MonoDebugMethodJitInfo *jit;
9530 MonoMethodSignature *sig;
9532 MonoMethodHeader *header;
9534 objid = decode_objid (p, &p, end);
9535 err = get_object (objid, (MonoObject**)&thread_obj);
9536 if (err != ERR_NONE)
9539 thread = THREAD_TO_INTERNAL (thread_obj);
9541 id = decode_id (p, &p, end);
9543 mono_loader_lock ();
9544 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
9545 mono_loader_unlock ();
9548 for (i = 0; i < tls->frame_count; ++i) {
9549 if (tls->frames [i]->id == id)
9552 if (i == tls->frame_count)
9553 return ERR_INVALID_FRAMEID;
9556 frame = tls->frames [frame_idx];
9558 /* This is supported for frames without has_ctx etc. set */
9559 if (command == CMD_STACK_FRAME_GET_DOMAIN) {
9560 if (CHECK_PROTOCOL_VERSION (2, 38))
9561 buffer_add_domainid (buf, frame->domain);
9565 if (!frame->has_ctx)
9566 return ERR_ABSENT_INFORMATION;
9568 if (!ensure_jit (frame))
9569 return ERR_ABSENT_INFORMATION;
9573 sig = mono_method_signature (frame->actual_method);
9575 if (!(jit->has_var_info || frame->ji->is_interp) || !mono_get_seq_points (frame->domain, frame->actual_method))
9577 * The method is probably from an aot image compiled without soft-debug, variables might be dead, etc.
9579 return ERR_ABSENT_INFORMATION;
9582 case CMD_STACK_FRAME_GET_VALUES: {
9584 len = decode_int (p, &p, end);
9585 header = mono_method_get_header_checked (frame->actual_method, &error);
9586 mono_error_assert_ok (&error); /* FIXME report error */
9588 for (i = 0; i < len; ++i) {
9589 pos = decode_int (p, &p, end);
9594 DEBUG_PRINTF (4, "[dbg] send arg %d.\n", pos);
9596 if (frame->ji->is_interp) {
9599 addr = mono_interp_frame_get_arg (frame->interp_frame, pos);
9601 buffer_add_value_full (buf, sig->params [pos], addr, frame->domain, FALSE, NULL);
9603 g_assert (pos >= 0 && pos < jit->num_params);
9605 add_var (buf, jit, sig->params [pos], &jit->params [pos], &frame->ctx, frame->domain, FALSE);
9608 MonoDebugLocalsInfo *locals;
9610 locals = mono_debug_lookup_locals (frame->method);
9612 g_assert (pos < locals->num_locals);
9613 pos = locals->locals [pos].index;
9614 mono_debug_free_locals (locals);
9617 DEBUG_PRINTF (4, "[dbg] send local %d.\n", pos);
9619 if (frame->ji->is_interp) {
9622 addr = mono_interp_frame_get_local (frame->interp_frame, pos);
9624 buffer_add_value_full (buf, header->locals [pos], addr, frame->domain, FALSE, NULL);
9626 g_assert (pos >= 0 && pos < jit->num_locals);
9628 add_var (buf, jit, header->locals [pos], &jit->locals [pos], &frame->ctx, frame->domain, FALSE);
9632 mono_metadata_free_mh (header);
9635 case CMD_STACK_FRAME_GET_THIS: {
9636 if (frame->method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE)
9637 return ERR_ABSENT_INFORMATION;
9638 if (frame->api_method->klass->valuetype) {
9639 if (!sig->hasthis) {
9640 MonoObject *p = NULL;
9641 buffer_add_value (buf, &mono_defaults.object_class->byval_arg, &p, frame->domain);
9643 if (frame->ji->is_interp) {
9646 addr = mono_interp_frame_get_this (frame->interp_frame);
9648 buffer_add_value_full (buf, &frame->actual_method->klass->this_arg, addr, frame->domain, FALSE, NULL);
9650 add_var (buf, jit, &frame->actual_method->klass->this_arg, jit->this_var, &frame->ctx, frame->domain, TRUE);
9654 if (!sig->hasthis) {
9655 MonoObject *p = NULL;
9656 buffer_add_value (buf, &frame->actual_method->klass->byval_arg, &p, frame->domain);
9658 if (frame->ji->is_interp) {
9661 addr = mono_interp_frame_get_this (frame->interp_frame);
9663 buffer_add_value_full (buf, &frame->api_method->klass->byval_arg, addr, frame->domain, FALSE, NULL);
9665 add_var (buf, jit, &frame->api_method->klass->byval_arg, jit->this_var, &frame->ctx, frame->domain, TRUE);
9671 case CMD_STACK_FRAME_SET_VALUES: {
9675 MonoDebugVarInfo *var = NULL;
9676 gboolean is_arg = FALSE;
9678 len = decode_int (p, &p, end);
9679 header = mono_method_get_header_checked (frame->actual_method, &error);
9680 mono_error_assert_ok (&error); /* FIXME report error */
9682 for (i = 0; i < len; ++i) {
9683 pos = decode_int (p, &p, end);
9688 g_assert (pos >= 0 && pos < jit->num_params);
9690 t = sig->params [pos];
9691 var = &jit->params [pos];
9694 MonoDebugLocalsInfo *locals;
9696 locals = mono_debug_lookup_locals (frame->method);
9698 g_assert (pos < locals->num_locals);
9699 pos = locals->locals [pos].index;
9700 mono_debug_free_locals (locals);
9702 g_assert (pos >= 0 && pos < jit->num_locals);
9704 t = header->locals [pos];
9705 var = &jit->locals [pos];
9708 if (MONO_TYPE_IS_REFERENCE (t))
9709 val_buf = (guint8 *)g_alloca (sizeof (MonoObject*));
9711 val_buf = (guint8 *)g_alloca (mono_class_instance_size (mono_class_from_mono_type (t)));
9712 err = decode_value (t, frame->domain, val_buf, p, &p, end);
9713 if (err != ERR_NONE)
9716 if (frame->ji->is_interp) {
9720 addr = mono_interp_frame_get_arg (frame->interp_frame, pos);
9722 addr = mono_interp_frame_get_local (frame->interp_frame, pos);
9723 set_interp_var (t, addr, val_buf);
9725 set_var (t, var, &frame->ctx, frame->domain, val_buf, frame->reg_locations, &tls->restore_state.ctx);
9728 mono_metadata_free_mh (header);
9731 case CMD_STACK_FRAME_GET_DOMAIN: {
9732 if (CHECK_PROTOCOL_VERSION (2, 38))
9733 buffer_add_domainid (buf, frame->domain);
9736 case CMD_STACK_FRAME_SET_THIS: {
9739 MonoDebugVarInfo *var;
9741 t = &frame->actual_method->klass->byval_arg;
9742 /* Checked by the sender */
9743 g_assert (MONO_TYPE_ISSTRUCT (t));
9745 val_buf = (guint8 *)g_alloca (mono_class_instance_size (mono_class_from_mono_type (t)));
9746 err = decode_value (t, frame->domain, val_buf, p, &p, end);
9747 if (err != ERR_NONE)
9750 if (frame->ji->is_interp) {
9753 addr = mono_interp_frame_get_this (frame->interp_frame);
9754 set_interp_var (&frame->actual_method->klass->this_arg, addr, val_buf);
9756 var = jit->this_var;
9759 set_var (&frame->actual_method->klass->this_arg, var, &frame->ctx, frame->domain, val_buf, frame->reg_locations, &tls->restore_state.ctx);
9764 return ERR_NOT_IMPLEMENTED;
9771 array_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9774 int objid, index, len, i, esize;
9778 objid = decode_objid (p, &p, end);
9779 err = get_object (objid, (MonoObject**)&arr);
9780 if (err != ERR_NONE)
9784 case CMD_ARRAY_REF_GET_LENGTH:
9785 buffer_add_int (buf, arr->obj.vtable->klass->rank);
9787 buffer_add_int (buf, arr->max_length);
9788 buffer_add_int (buf, 0);
9790 for (i = 0; i < arr->obj.vtable->klass->rank; ++i) {
9791 buffer_add_int (buf, arr->bounds [i].length);
9792 buffer_add_int (buf, arr->bounds [i].lower_bound);
9796 case CMD_ARRAY_REF_GET_VALUES:
9797 index = decode_int (p, &p, end);
9798 len = decode_int (p, &p, end);
9800 g_assert (index >= 0 && len >= 0);
9801 // Reordered to avoid integer overflow
9802 g_assert (!(index > arr->max_length - len));
9804 esize = mono_array_element_size (arr->obj.vtable->klass);
9805 for (i = index; i < index + len; ++i) {
9806 elem = (gpointer*)((char*)arr->vector + (i * esize));
9807 buffer_add_value (buf, &arr->obj.vtable->klass->element_class->byval_arg, elem, arr->obj.vtable->domain);
9810 case CMD_ARRAY_REF_SET_VALUES:
9811 index = decode_int (p, &p, end);
9812 len = decode_int (p, &p, end);
9814 g_assert (index >= 0 && len >= 0);
9815 // Reordered to avoid integer overflow
9816 g_assert (!(index > arr->max_length - len));
9818 esize = mono_array_element_size (arr->obj.vtable->klass);
9819 for (i = index; i < index + len; ++i) {
9820 elem = (gpointer*)((char*)arr->vector + (i * esize));
9822 decode_value (&arr->obj.vtable->klass->element_class->byval_arg, arr->obj.vtable->domain, (guint8 *)elem, p, &p, end);
9826 return ERR_NOT_IMPLEMENTED;
9833 string_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9839 int i, index, length;
9841 gboolean use_utf16 = FALSE;
9843 objid = decode_objid (p, &p, end);
9844 err = get_object (objid, (MonoObject**)&str);
9845 if (err != ERR_NONE)
9849 case CMD_STRING_REF_GET_VALUE:
9850 if (CHECK_PROTOCOL_VERSION (2, 41)) {
9851 for (i = 0; i < mono_string_length (str); ++i)
9852 if (mono_string_chars (str)[i] == 0)
9854 buffer_add_byte (buf, use_utf16 ? 1 : 0);
9857 buffer_add_int (buf, mono_string_length (str) * 2);
9858 buffer_add_data (buf, (guint8*)mono_string_chars (str), mono_string_length (str) * 2);
9861 s = mono_string_to_utf8_checked (str, &error);
9862 mono_error_assert_ok (&error);
9863 buffer_add_string (buf, s);
9867 case CMD_STRING_REF_GET_LENGTH:
9868 buffer_add_long (buf, mono_string_length (str));
9870 case CMD_STRING_REF_GET_CHARS:
9871 index = decode_long (p, &p, end);
9872 length = decode_long (p, &p, end);
9873 if (index > mono_string_length (str) - length)
9874 return ERR_INVALID_ARGUMENT;
9875 c = mono_string_chars (str) + index;
9876 for (i = 0; i < length; ++i)
9877 buffer_add_short (buf, c [i]);
9880 return ERR_NOT_IMPLEMENTED;
9887 object_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9898 if (command == CMD_OBJECT_REF_IS_COLLECTED) {
9899 objid = decode_objid (p, &p, end);
9900 err = get_object (objid, &obj);
9901 if (err != ERR_NONE)
9902 buffer_add_int (buf, 1);
9904 buffer_add_int (buf, 0);
9908 objid = decode_objid (p, &p, end);
9909 err = get_object (objid, &obj);
9910 if (err != ERR_NONE)
9913 MonoClass *obj_type;
9914 gboolean remote_obj = FALSE;
9916 obj_type = obj->vtable->klass;
9917 if (mono_class_is_transparent_proxy (obj_type)) {
9918 obj_type = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
9922 g_assert (obj_type);
9925 case CMD_OBJECT_REF_GET_TYPE:
9926 /* This handles transparent proxies too */
9927 buffer_add_typeid (buf, obj->vtable->domain, mono_class_from_mono_type (((MonoReflectionType*)obj->vtable->type)->type));
9929 case CMD_OBJECT_REF_GET_VALUES:
9930 len = decode_int (p, &p, end);
9932 for (i = 0; i < len; ++i) {
9933 MonoClassField *f = decode_fieldid (p, &p, end, NULL, &err);
9934 if (err != ERR_NONE)
9937 /* Check that the field belongs to the object */
9939 for (k = obj_type; k; k = k->parent) {
9940 if (k == f->parent) {
9946 return ERR_INVALID_FIELDID;
9948 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC) {
9952 if (mono_class_field_is_special_static (f))
9953 return ERR_INVALID_FIELDID;
9955 g_assert (f->type->attrs & FIELD_ATTRIBUTE_STATIC);
9956 vtable = mono_class_vtable (obj->vtable->domain, f->parent);
9957 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
9958 mono_field_static_get_value_checked (vtable, f, val, &error);
9959 if (!is_ok (&error)) {
9960 mono_error_cleanup (&error); /* FIXME report the error */
9961 return ERR_INVALID_OBJECT;
9963 buffer_add_value (buf, f->type, val, obj->vtable->domain);
9966 guint8 *field_value = NULL;
9969 #ifndef DISABLE_REMOTING
9970 void *field_storage = NULL;
9971 field_value = mono_load_remote_field_checked(obj, obj_type, f, &field_storage, &error);
9972 if (!is_ok (&error)) {
9973 mono_error_cleanup (&error); /* FIXME report the error */
9974 return ERR_INVALID_OBJECT;
9977 g_assert_not_reached ();
9980 field_value = (guint8*)obj + f->offset;
9982 buffer_add_value (buf, f->type, field_value, obj->vtable->domain);
9986 case CMD_OBJECT_REF_SET_VALUES:
9987 len = decode_int (p, &p, end);
9989 for (i = 0; i < len; ++i) {
9990 f = decode_fieldid (p, &p, end, NULL, &err);
9991 if (err != ERR_NONE)
9994 /* Check that the field belongs to the object */
9996 for (k = obj_type; k; k = k->parent) {
9997 if (k == f->parent) {
10003 return ERR_INVALID_FIELDID;
10005 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC) {
10007 MonoVTable *vtable;
10009 if (mono_class_field_is_special_static (f))
10010 return ERR_INVALID_FIELDID;
10012 g_assert (f->type->attrs & FIELD_ATTRIBUTE_STATIC);
10013 vtable = mono_class_vtable (obj->vtable->domain, f->parent);
10015 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
10016 err = decode_value (f->type, obj->vtable->domain, val, p, &p, end);
10017 if (err != ERR_NONE) {
10021 mono_field_static_set_value (vtable, f, val);
10024 err = decode_value (f->type, obj->vtable->domain, (guint8*)obj + f->offset, p, &p, end);
10025 if (err != ERR_NONE)
10030 case CMD_OBJECT_REF_GET_ADDRESS:
10031 buffer_add_long (buf, (gssize)obj);
10033 case CMD_OBJECT_REF_GET_DOMAIN:
10034 buffer_add_domainid (buf, obj->vtable->domain);
10036 case CMD_OBJECT_REF_GET_INFO:
10037 buffer_add_typeid (buf, obj->vtable->domain, mono_class_from_mono_type (((MonoReflectionType*)obj->vtable->type)->type));
10038 buffer_add_domainid (buf, obj->vtable->domain);
10041 return ERR_NOT_IMPLEMENTED;
10048 command_set_to_string (CommandSet command_set)
10050 switch (command_set) {
10053 case CMD_SET_OBJECT_REF:
10054 return "OBJECT_REF";
10055 case CMD_SET_STRING_REF:
10056 return "STRING_REF";
10057 case CMD_SET_THREAD:
10059 case CMD_SET_ARRAY_REF:
10060 return "ARRAY_REF";
10061 case CMD_SET_EVENT_REQUEST:
10062 return "EVENT_REQUEST";
10063 case CMD_SET_STACK_FRAME:
10064 return "STACK_FRAME";
10065 case CMD_SET_APPDOMAIN:
10066 return "APPDOMAIN";
10067 case CMD_SET_ASSEMBLY:
10069 case CMD_SET_METHOD:
10073 case CMD_SET_MODULE:
10075 case CMD_SET_FIELD:
10077 case CMD_SET_EVENT:
10084 static const char* vm_cmds_str [] = {
10092 "SET_PROTOCOL_VERSION",
10095 "GET_TYPES_FOR_SOURCE_FILE",
10100 static const char* thread_cmds_str[] = {
10110 static const char* event_cmds_str[] = {
10113 "REQUEST_CLEAR_ALL_BREAKPOINTS"
10116 static const char* appdomain_cmds_str[] = {
10118 "GET_FRIENDLY_NAME",
10120 "GET_ENTRY_ASSEMBLY",
10123 "CREATE_BOXED_VALUE"
10126 static const char* assembly_cmds_str[] = {
10129 "GET_MANIFEST_MODULE",
10136 static const char* module_cmds_str[] = {
10140 static const char* field_cmds_str[] = {
10144 static const char* method_cmds_str[] = {
10146 "GET_DECLARING_TYPE",
10154 "MAKE_GENERIC_METHOD"
10157 static const char* type_cmds_str[] = {
10163 "GET_SOURCE_FILES",
10165 "IS_ASSIGNABLE_FROM",
10168 "GET_FIELD_CATTRS",
10169 "GET_PROPERTY_CATTRS",
10170 "GET_SOURCE_FILES_2",
10172 "GET_METHODS_BY_NAME_FLAGS",
10174 "GET_INTERFACE_MAP",
10178 static const char* stack_frame_cmds_str[] = {
10186 static const char* array_cmds_str[] = {
10192 static const char* string_cmds_str[] = {
10198 static const char* object_cmds_str[] = {
10209 cmd_to_string (CommandSet set, int command)
10216 cmds = vm_cmds_str;
10217 cmds_len = G_N_ELEMENTS (vm_cmds_str);
10219 case CMD_SET_OBJECT_REF:
10220 cmds = object_cmds_str;
10221 cmds_len = G_N_ELEMENTS (object_cmds_str);
10223 case CMD_SET_STRING_REF:
10224 cmds = string_cmds_str;
10225 cmds_len = G_N_ELEMENTS (string_cmds_str);
10227 case CMD_SET_THREAD:
10228 cmds = thread_cmds_str;
10229 cmds_len = G_N_ELEMENTS (thread_cmds_str);
10231 case CMD_SET_ARRAY_REF:
10232 cmds = array_cmds_str;
10233 cmds_len = G_N_ELEMENTS (array_cmds_str);
10235 case CMD_SET_EVENT_REQUEST:
10236 cmds = event_cmds_str;
10237 cmds_len = G_N_ELEMENTS (event_cmds_str);
10239 case CMD_SET_STACK_FRAME:
10240 cmds = stack_frame_cmds_str;
10241 cmds_len = G_N_ELEMENTS (stack_frame_cmds_str);
10243 case CMD_SET_APPDOMAIN:
10244 cmds = appdomain_cmds_str;
10245 cmds_len = G_N_ELEMENTS (appdomain_cmds_str);
10247 case CMD_SET_ASSEMBLY:
10248 cmds = assembly_cmds_str;
10249 cmds_len = G_N_ELEMENTS (assembly_cmds_str);
10251 case CMD_SET_METHOD:
10252 cmds = method_cmds_str;
10253 cmds_len = G_N_ELEMENTS (method_cmds_str);
10256 cmds = type_cmds_str;
10257 cmds_len = G_N_ELEMENTS (type_cmds_str);
10259 case CMD_SET_MODULE:
10260 cmds = module_cmds_str;
10261 cmds_len = G_N_ELEMENTS (module_cmds_str);
10263 case CMD_SET_FIELD:
10264 cmds = field_cmds_str;
10265 cmds_len = G_N_ELEMENTS (field_cmds_str);
10267 case CMD_SET_EVENT:
10268 cmds = event_cmds_str;
10269 cmds_len = G_N_ELEMENTS (event_cmds_str);
10274 if (command > 0 && command <= cmds_len)
10275 return cmds [command - 1];
10281 wait_for_attach (void)
10283 #ifndef DISABLE_SOCKET_TRANSPORT
10284 if (listen_fd == -1) {
10285 DEBUG_PRINTF (1, "[dbg] Invalid listening socket\n");
10289 /* Block and wait for client connection */
10290 conn_fd = socket_transport_accept (listen_fd);
10292 DEBUG_PRINTF (1, "Accepted connection on %d\n", conn_fd);
10293 if (conn_fd == -1) {
10294 DEBUG_PRINTF (1, "[dbg] Bad client connection\n");
10298 g_assert_not_reached ();
10302 disconnected = !transport_handshake ();
10303 if (disconnected) {
10304 DEBUG_PRINTF (1, "Transport handshake failed!\n");
10314 * This thread handles communication with the debugger client using a JDWP
10317 static gsize WINAPI
10318 debugger_thread (void *arg)
10321 int res, len, id, flags, command = 0;
10322 CommandSet command_set = (CommandSet)0;
10323 guint8 header [HEADER_LENGTH];
10324 guint8 *data, *p, *end;
10328 gboolean attach_failed = FALSE;
10330 DEBUG_PRINTF (1, "[dbg] Agent thread started, pid=%p\n", (gpointer) (gsize) mono_native_thread_id_get ());
10332 debugger_thread_id = mono_native_thread_id_get ();
10334 MonoInternalThread *internal = mono_thread_internal_current ();
10335 MonoString *str = mono_string_new_checked (mono_domain_get (), "Debugger agent", &error);
10336 mono_error_assert_ok (&error);
10337 mono_thread_set_name_internal (internal, str, TRUE, FALSE, &error);
10338 mono_error_assert_ok (&error);
10340 internal->state |= ThreadState_Background;
10341 internal->flags |= MONO_THREAD_FLAG_DONT_MANAGE;
10343 if (agent_config.defer) {
10344 if (!wait_for_attach ()) {
10345 DEBUG_PRINTF (1, "[dbg] Can't attach, aborting debugger thread.\n");
10346 attach_failed = TRUE; // Don't abort process when we can't listen
10348 mono_set_is_debugger_attached (TRUE);
10349 /* Send start event to client */
10350 process_profiler_event (EVENT_KIND_VM_START, mono_thread_get_main ());
10353 mono_set_is_debugger_attached (TRUE);
10356 while (!attach_failed) {
10357 res = transport_recv (header, HEADER_LENGTH);
10359 /* This will break if the socket is closed during shutdown too */
10360 if (res != HEADER_LENGTH) {
10361 DEBUG_PRINTF (1, "[dbg] transport_recv () returned %d, expected %d.\n", res, HEADER_LENGTH);
10366 end = header + HEADER_LENGTH;
10368 len = decode_int (p, &p, end);
10369 id = decode_int (p, &p, end);
10370 flags = decode_byte (p, &p, end);
10371 command_set = (CommandSet)decode_byte (p, &p, end);
10372 command = decode_byte (p, &p, end);
10374 g_assert (flags == 0);
10377 const char *cmd_str;
10378 char cmd_num [256];
10380 cmd_str = cmd_to_string (command_set, command);
10382 sprintf (cmd_num, "%d", command);
10386 DEBUG_PRINTF (1, "[dbg] Command %s(%s) [%d][at=%lx].\n", command_set_to_string (command_set), cmd_str, id, (long)mono_100ns_ticks () / 10000);
10389 data = (guint8 *)g_malloc (len - HEADER_LENGTH);
10390 if (len - HEADER_LENGTH > 0)
10392 res = transport_recv (data, len - HEADER_LENGTH);
10393 if (res != len - HEADER_LENGTH) {
10394 DEBUG_PRINTF (1, "[dbg] transport_recv () returned %d, expected %d.\n", res, len - HEADER_LENGTH);
10400 end = data + (len - HEADER_LENGTH);
10402 buffer_init (&buf, 128);
10407 /* Process the request */
10408 switch (command_set) {
10410 err = vm_commands (command, id, p, end, &buf);
10411 if (err == ERR_NONE && command == CMD_VM_INVOKE_METHOD)
10412 /* Sent after the invoke is complete */
10415 case CMD_SET_EVENT_REQUEST:
10416 err = event_commands (command, p, end, &buf);
10418 case CMD_SET_APPDOMAIN:
10419 err = domain_commands (command, p, end, &buf);
10421 case CMD_SET_ASSEMBLY:
10422 err = assembly_commands (command, p, end, &buf);
10424 case CMD_SET_MODULE:
10425 err = module_commands (command, p, end, &buf);
10427 case CMD_SET_FIELD:
10428 err = field_commands (command, p, end, &buf);
10431 err = type_commands (command, p, end, &buf);
10433 case CMD_SET_METHOD:
10434 err = method_commands (command, p, end, &buf);
10436 case CMD_SET_THREAD:
10437 err = thread_commands (command, p, end, &buf);
10439 case CMD_SET_STACK_FRAME:
10440 err = frame_commands (command, p, end, &buf);
10442 case CMD_SET_ARRAY_REF:
10443 err = array_commands (command, p, end, &buf);
10445 case CMD_SET_STRING_REF:
10446 err = string_commands (command, p, end, &buf);
10448 case CMD_SET_OBJECT_REF:
10449 err = object_commands (command, p, end, &buf);
10452 err = ERR_NOT_IMPLEMENTED;
10455 if (command_set == CMD_SET_VM && command == CMD_VM_START_BUFFERING) {
10456 buffer_replies = TRUE;
10460 if (buffer_replies) {
10461 buffer_reply_packet (id, err, &buf);
10463 send_reply_packet (id, err, &buf);
10464 //DEBUG_PRINTF (1, "[dbg] Sent reply to %d [at=%lx].\n", id, (long)mono_100ns_ticks () / 10000);
10468 if (err == ERR_NONE && command_set == CMD_SET_VM && command == CMD_VM_STOP_BUFFERING) {
10469 send_buffered_reply_packets ();
10470 buffer_replies = FALSE;
10474 buffer_free (&buf);
10476 if (command_set == CMD_SET_VM && (command == CMD_VM_DISPOSE || command == CMD_VM_EXIT))
10480 mono_set_is_debugger_attached (FALSE);
10482 mono_coop_mutex_lock (&debugger_thread_exited_mutex);
10483 debugger_thread_exited = TRUE;
10484 mono_coop_cond_signal (&debugger_thread_exited_cond);
10485 mono_coop_mutex_unlock (&debugger_thread_exited_mutex);
10487 DEBUG_PRINTF (1, "[dbg] Debugger thread exited.\n");
10489 if (!attach_failed && command_set == CMD_SET_VM && command == CMD_VM_DISPOSE && !(vm_death_event_sent || mono_runtime_is_shutting_down ())) {
10490 DEBUG_PRINTF (2, "[dbg] Detached - restarting clean debugger thread.\n");
10491 start_debugger_thread ();
10497 #else /* DISABLE_DEBUGGER_AGENT */
10500 mono_debugger_agent_parse_options (char *options)
10502 g_error ("This runtime is configured with the debugger agent disabled.");
10506 mono_debugger_agent_init (void)
10511 mono_debugger_agent_breakpoint_hit (void *sigctx)
10516 mono_debugger_agent_single_step_event (void *sigctx)
10521 mono_debugger_agent_free_domain_info (MonoDomain *domain)
10526 mono_debugger_agent_handle_exception (MonoException *ext, MonoContext *throw_ctx,
10527 MonoContext *catch_ctx)
10532 mono_debugger_agent_begin_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
10537 mono_debugger_agent_end_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
10542 mono_debugger_agent_user_break (void)
10548 mono_debugger_agent_debug_log (int level, MonoString *category, MonoString *message)
10553 mono_debugger_agent_debug_log_is_enabled (void)
10559 mono_debugger_agent_unhandled_exception (MonoException *exc)
10561 g_assert_not_reached ();
10565 debugger_agent_single_step_from_context (MonoContext *ctx)
10567 g_assert_not_reached ();
10571 debugger_agent_breakpoint_from_context (MonoContext *ctx)
10573 g_assert_not_reached ();