2 * debugger-agent.c: Soft Debugger back-end module
5 * Zoltan Varga (vargaz@gmail.com)
7 * Copyright 2009-2010 Novell, Inc.
8 * Copyright 2011 Xamarin Inc.
15 #ifdef HAVE_SYS_TYPES_H
16 #include <sys/types.h>
18 #ifdef HAVE_SYS_SELECT_H
19 #include <sys/select.h>
21 #ifdef HAVE_SYS_SOCKET_H
22 #include <sys/socket.h>
24 #ifdef HAVE_NETINET_TCP_H
25 #include <netinet/tcp.h>
27 #ifdef HAVE_NETINET_IN_H
28 #include <netinet/in.h>
48 #ifdef PLATFORM_ANDROID
50 #include <linux/tcp.h>
51 #include <sys/endian.h>
54 #include <mono/metadata/mono-debug.h>
55 #include <mono/metadata/mono-debug-debugger.h>
56 #include <mono/metadata/debug-mono-symfile.h>
57 #include <mono/metadata/gc-internals.h>
58 #include <mono/metadata/environment.h>
59 #include <mono/metadata/threads-types.h>
60 #include <mono/metadata/threadpool-ms.h>
61 #include <mono/metadata/socket-io.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/utils/mono-coop-mutex.h>
67 #include <mono/utils/mono-coop-semaphore.h>
68 #include <mono/utils/mono-error-internals.h>
69 #include <mono/utils/mono-stack-unwinding.h>
70 #include <mono/utils/mono-time.h>
71 #include <mono/utils/mono-threads.h>
72 #include <mono/utils/networking.h>
73 #include "debugger-agent.h"
75 #include "seq-points.h"
78 * On iOS we can't use System.Environment.Exit () as it will do the wrong
81 #if !defined (TARGET_IOS)
82 #define TRY_MANAGED_SYSTEM_ENVIRONMENT_EXIT
86 #ifndef MONO_ARCH_SOFT_DEBUG_SUPPORTED
87 #define DISABLE_DEBUGGER_AGENT 1
90 #ifdef DISABLE_SOFT_DEBUG
91 #define DISABLE_DEBUGGER_AGENT 1
94 #ifndef DISABLE_DEBUGGER_AGENT
96 #include <mono/utils/mono-os-mutex.h>
98 #define THREAD_TO_INTERNAL(thread) (thread)->internal_thread
121 guint32 il_offset, native_offset;
125 * If method is gshared, this is the actual instance, otherwise this is equal to
128 MonoMethod *actual_method;
130 * This is the method which is visible to debugger clients. Same as method,
131 * except for native-to-managed wrappers.
133 MonoMethod *api_method;
135 MonoDebugMethodJitInfo *jit;
138 mgreg_t *reg_locations [MONO_MAX_IREGS];
140 * Whenever ctx is set. This is FALSE for the last frame of running threads, since
141 * the frame can become invalid.
146 typedef struct _InvokeData InvokeData;
154 /* This is the context which needs to be restored after the invoke */
158 * If this is set, invoke this method with the arguments given by ARGS.
162 guint32 suspend_count;
165 InvokeData *last_invoke;
169 MonoThreadUnwindState context;
171 /* This is computed on demand when it is requested using the wire protocol */
172 /* It is freed up when the thread is resumed */
176 * Whenever the frame info is up-to-date. If not, compute_frame_info () will need to
179 gboolean frames_up_to_date;
181 * Points to data about a pending invoke which needs to be executed after the thread
184 InvokeData *pending_invoke;
186 * Set to TRUE if this thread is suspended in suspend_current () or it is executing
191 * Signals whenever the thread is in the process of suspending, i.e. it will suspend
192 * within a finite amount of time.
196 * Set to TRUE if this thread is suspended in suspend_current ().
198 gboolean really_suspended;
199 /* Used to pass the context to the breakpoint/single step handler */
200 MonoContext handler_ctx;
201 /* Whenever thread_stop () was called for this thread */
204 /* Whenever to disable breakpoints (used during invokes) */
205 gboolean disable_breakpoints;
208 * Number of times this thread has been resumed using resume_thread ().
210 guint32 resume_count;
212 MonoInternalThread *thread;
215 * Information about the frame which transitioned to native code for running
218 StackFrameInfo async_last_frame;
221 * The context where the stack walk can be started for running threads.
223 MonoThreadUnwindState async_state;
226 * The context used for filter clauses
228 MonoThreadUnwindState filter_state;
230 gboolean abort_requested;
233 * The current mono_runtime_invoke_checked invocation.
238 * The context where single stepping should resume while the thread is suspended because
239 * of an EXCEPTION event.
241 MonoThreadUnwindState catch_state;
244 * The context which needs to be restored after handling a single step/breakpoint
245 * event. This is the same as the ctx at step/breakpoint site, but includes changes
246 * to caller saved registers done by set_var ().
248 MonoThreadUnwindState restore_state;
249 /* Frames computed from restore_state */
250 int restore_frame_count;
251 StackFrame **restore_frames;
253 /* The currently unloading appdomain */
254 MonoDomain *domain_unloading;
259 void (*connect) (const char *address);
260 void (*close1) (void);
261 void (*close2) (void);
262 gboolean (*send) (void *buf, int len);
263 int (*recv) (void *buf, int len);
267 * Wire Protocol definitions
270 #define HEADER_LENGTH 11
272 #define MAJOR_VERSION 2
273 #define MINOR_VERSION 42
277 CMD_SET_OBJECT_REF = 9,
278 CMD_SET_STRING_REF = 10,
280 CMD_SET_ARRAY_REF = 13,
281 CMD_SET_EVENT_REQUEST = 15,
282 CMD_SET_STACK_FRAME = 16,
283 CMD_SET_APPDOMAIN = 20,
284 CMD_SET_ASSEMBLY = 21,
293 EVENT_KIND_VM_START = 0,
294 EVENT_KIND_VM_DEATH = 1,
295 EVENT_KIND_THREAD_START = 2,
296 EVENT_KIND_THREAD_DEATH = 3,
297 EVENT_KIND_APPDOMAIN_CREATE = 4,
298 EVENT_KIND_APPDOMAIN_UNLOAD = 5,
299 EVENT_KIND_METHOD_ENTRY = 6,
300 EVENT_KIND_METHOD_EXIT = 7,
301 EVENT_KIND_ASSEMBLY_LOAD = 8,
302 EVENT_KIND_ASSEMBLY_UNLOAD = 9,
303 EVENT_KIND_BREAKPOINT = 10,
304 EVENT_KIND_STEP = 11,
305 EVENT_KIND_TYPE_LOAD = 12,
306 EVENT_KIND_EXCEPTION = 13,
307 EVENT_KIND_KEEPALIVE = 14,
308 EVENT_KIND_USER_BREAK = 15,
309 EVENT_KIND_USER_LOG = 16
313 SUSPEND_POLICY_NONE = 0,
314 SUSPEND_POLICY_EVENT_THREAD = 1,
315 SUSPEND_POLICY_ALL = 2
320 ERR_INVALID_OBJECT = 20,
321 ERR_INVALID_FIELDID = 25,
322 ERR_INVALID_FRAMEID = 30,
323 ERR_NOT_IMPLEMENTED = 100,
324 ERR_NOT_SUSPENDED = 101,
325 ERR_INVALID_ARGUMENT = 102,
327 ERR_NO_INVOCATION = 104,
328 ERR_ABSENT_INFORMATION = 105,
329 ERR_NO_SEQ_POINT_AT_IL_OFFSET = 106,
330 ERR_INVOKE_ABORTED = 107,
331 ERR_LOADER_ERROR = 200, /*XXX extend the protocol to pass this information down the pipe */
336 MOD_KIND_THREAD_ONLY = 3,
337 MOD_KIND_LOCATION_ONLY = 7,
338 MOD_KIND_EXCEPTION_ONLY = 8,
340 MOD_KIND_ASSEMBLY_ONLY = 11,
341 MOD_KIND_SOURCE_FILE_ONLY = 12,
342 MOD_KIND_TYPE_NAME_ONLY = 13,
358 STEP_FILTER_NONE = 0,
359 STEP_FILTER_STATIC_CTOR = 1,
360 STEP_FILTER_DEBUGGER_HIDDEN = 2,
361 STEP_FILTER_DEBUGGER_STEP_THROUGH = 4,
362 STEP_FILTER_DEBUGGER_NON_USER_CODE = 8
366 TOKEN_TYPE_STRING = 0,
368 TOKEN_TYPE_FIELD = 2,
369 TOKEN_TYPE_METHOD = 3,
370 TOKEN_TYPE_UNKNOWN = 4
374 VALUE_TYPE_ID_NULL = 0xf0,
375 VALUE_TYPE_ID_TYPE = 0xf1,
376 VALUE_TYPE_ID_PARENT_VTYPE = 0xf2
380 FRAME_FLAG_DEBUGGER_INVOKE = 1,
381 FRAME_FLAG_NATIVE_TRANSITION = 2
385 INVOKE_FLAG_DISABLE_BREAKPOINTS = 1,
386 INVOKE_FLAG_SINGLE_THREADED = 2,
387 INVOKE_FLAG_RETURN_OUT_THIS = 4,
388 INVOKE_FLAG_RETURN_OUT_ARGS = 8,
389 INVOKE_FLAG_VIRTUAL = 16
393 BINDING_FLAGS_IGNORE_CASE = 0x70000000,
394 } BindingFlagsExtensions;
398 CMD_VM_ALL_THREADS = 2,
403 CMD_VM_INVOKE_METHOD = 7,
404 CMD_VM_SET_PROTOCOL_VERSION = 8,
405 CMD_VM_ABORT_INVOKE = 9,
406 CMD_VM_SET_KEEPALIVE = 10,
407 CMD_VM_GET_TYPES_FOR_SOURCE_FILE = 11,
408 CMD_VM_GET_TYPES = 12,
409 CMD_VM_INVOKE_METHODS = 13,
410 CMD_VM_START_BUFFERING = 14,
411 CMD_VM_STOP_BUFFERING = 15
415 CMD_THREAD_GET_FRAME_INFO = 1,
416 CMD_THREAD_GET_NAME = 2,
417 CMD_THREAD_GET_STATE = 3,
418 CMD_THREAD_GET_INFO = 4,
419 CMD_THREAD_GET_ID = 5,
420 CMD_THREAD_GET_TID = 6,
421 CMD_THREAD_SET_IP = 7
425 CMD_EVENT_REQUEST_SET = 1,
426 CMD_EVENT_REQUEST_CLEAR = 2,
427 CMD_EVENT_REQUEST_CLEAR_ALL_BREAKPOINTS = 3
435 CMD_APPDOMAIN_GET_ROOT_DOMAIN = 1,
436 CMD_APPDOMAIN_GET_FRIENDLY_NAME = 2,
437 CMD_APPDOMAIN_GET_ASSEMBLIES = 3,
438 CMD_APPDOMAIN_GET_ENTRY_ASSEMBLY = 4,
439 CMD_APPDOMAIN_CREATE_STRING = 5,
440 CMD_APPDOMAIN_GET_CORLIB = 6,
441 CMD_APPDOMAIN_CREATE_BOXED_VALUE = 7
445 CMD_ASSEMBLY_GET_LOCATION = 1,
446 CMD_ASSEMBLY_GET_ENTRY_POINT = 2,
447 CMD_ASSEMBLY_GET_MANIFEST_MODULE = 3,
448 CMD_ASSEMBLY_GET_OBJECT = 4,
449 CMD_ASSEMBLY_GET_TYPE = 5,
450 CMD_ASSEMBLY_GET_NAME = 6
454 CMD_MODULE_GET_INFO = 1,
458 CMD_FIELD_GET_INFO = 1,
462 CMD_METHOD_GET_NAME = 1,
463 CMD_METHOD_GET_DECLARING_TYPE = 2,
464 CMD_METHOD_GET_DEBUG_INFO = 3,
465 CMD_METHOD_GET_PARAM_INFO = 4,
466 CMD_METHOD_GET_LOCALS_INFO = 5,
467 CMD_METHOD_GET_INFO = 6,
468 CMD_METHOD_GET_BODY = 7,
469 CMD_METHOD_RESOLVE_TOKEN = 8,
470 CMD_METHOD_GET_CATTRS = 9,
471 CMD_METHOD_MAKE_GENERIC_METHOD = 10
475 CMD_TYPE_GET_INFO = 1,
476 CMD_TYPE_GET_METHODS = 2,
477 CMD_TYPE_GET_FIELDS = 3,
478 CMD_TYPE_GET_VALUES = 4,
479 CMD_TYPE_GET_OBJECT = 5,
480 CMD_TYPE_GET_SOURCE_FILES = 6,
481 CMD_TYPE_SET_VALUES = 7,
482 CMD_TYPE_IS_ASSIGNABLE_FROM = 8,
483 CMD_TYPE_GET_PROPERTIES = 9,
484 CMD_TYPE_GET_CATTRS = 10,
485 CMD_TYPE_GET_FIELD_CATTRS = 11,
486 CMD_TYPE_GET_PROPERTY_CATTRS = 12,
487 CMD_TYPE_GET_SOURCE_FILES_2 = 13,
488 CMD_TYPE_GET_VALUES_2 = 14,
489 CMD_TYPE_GET_METHODS_BY_NAME_FLAGS = 15,
490 CMD_TYPE_GET_INTERFACES = 16,
491 CMD_TYPE_GET_INTERFACE_MAP = 17,
492 CMD_TYPE_IS_INITIALIZED = 18,
493 CMD_TYPE_CREATE_INSTANCE = 19
497 CMD_STACK_FRAME_GET_VALUES = 1,
498 CMD_STACK_FRAME_GET_THIS = 2,
499 CMD_STACK_FRAME_SET_VALUES = 3,
500 CMD_STACK_FRAME_GET_DOMAIN = 4,
504 CMD_ARRAY_REF_GET_LENGTH = 1,
505 CMD_ARRAY_REF_GET_VALUES = 2,
506 CMD_ARRAY_REF_SET_VALUES = 3,
510 CMD_STRING_REF_GET_VALUE = 1,
511 CMD_STRING_REF_GET_LENGTH = 2,
512 CMD_STRING_REF_GET_CHARS = 3
516 CMD_OBJECT_REF_GET_TYPE = 1,
517 CMD_OBJECT_REF_GET_VALUES = 2,
518 CMD_OBJECT_REF_IS_COLLECTED = 3,
519 CMD_OBJECT_REF_GET_ADDRESS = 4,
520 CMD_OBJECT_REF_GET_DOMAIN = 5,
521 CMD_OBJECT_REF_SET_VALUES = 6,
522 CMD_OBJECT_REF_GET_INFO = 7,
528 int count; /* For kind == MOD_KIND_COUNT */
529 MonoInternalThread *thread; /* For kind == MOD_KIND_THREAD_ONLY */
530 MonoClass *exc_class; /* For kind == MONO_KIND_EXCEPTION_ONLY */
531 MonoAssembly **assemblies; /* For kind == MONO_KIND_ASSEMBLY_ONLY */
532 GHashTable *source_files; /* For kind == MONO_KIND_SOURCE_FILE_ONLY */
533 GHashTable *type_names; /* For kind == MONO_KIND_TYPE_NAME_ONLY */
534 StepFilter filter; /* For kind == MOD_KIND_STEP */
536 gboolean caught, uncaught, subclasses; /* For kind == MOD_KIND_EXCEPTION_ONLY */
545 Modifier modifiers [MONO_ZERO_LEN_ARRAY];
549 * Describes a single step request.
553 MonoInternalThread *thread;
559 MonoMethod *start_method;
560 MonoMethod *last_method;
562 /* Whenever single stepping is performed using start/stop_single_stepping () */
564 /* The list of breakpoints used to implement step-over */
566 /* The number of frames at the start of a step-over */
571 * Contains additional information for an event
574 /* For EVENT_KIND_EXCEPTION */
576 MonoContext catch_ctx;
578 /* For EVENT_KIND_USER_LOG */
580 char *category, *message;
581 /* For EVENT_KIND_TYPE_LOAD */
585 /* Dummy structure used for the profiler callbacks */
591 guint8 *buf, *p, *end;
594 typedef struct ReplyPacket {
600 #define DEBUG(level,s) do { if (G_UNLIKELY ((level) <= log_level)) { s; fflush (log_file); } } while (0)
602 #ifdef PLATFORM_ANDROID
603 #define DEBUG_PRINTF(level, ...) do { if (G_UNLIKELY ((level) <= log_level)) { g_print (__VA_ARGS__); } } while (0)
605 #define DEBUG_PRINTF(level, ...) do { if (G_UNLIKELY ((level) <= log_level)) { fprintf (log_file, __VA_ARGS__); fflush (log_file); } } while (0)
609 #define get_last_sock_error() WSAGetLastError()
610 #define MONO_EWOULDBLOCK WSAEWOULDBLOCK
611 #define MONO_EINTR WSAEINTR
613 #define get_last_sock_error() errno
614 #define MONO_EWOULDBLOCK EWOULDBLOCK
615 #define MONO_EINTR EINTR
618 #define CHECK_PROTOCOL_VERSION(major,minor) \
619 (protocol_version_set && (major_version > (major) || (major_version == (major) && minor_version >= (minor))))
625 static AgentConfig agent_config;
628 * Whenever the agent is fully initialized.
629 * When using the onuncaught or onthrow options, only some parts of the agent are
630 * initialized on startup, and the full initialization which includes connection
631 * establishment and the startup of the agent thread is only done in response to
634 static gint32 inited;
636 #ifndef DISABLE_SOCKET_TRANSPORT
638 static int listen_fd;
641 static int packet_id = 0;
643 static int objref_id = 0;
645 static int event_request_id = 0;
647 static int frame_id = 0;
649 static GPtrArray *event_requests;
651 static MonoNativeTlsKey debugger_tls_id;
653 static gboolean vm_start_event_sent, vm_death_event_sent, disconnected;
655 /* Maps MonoInternalThread -> DebuggerTlsData */
656 /* Protected by the loader lock */
657 static MonoGHashTable *thread_to_tls;
659 /* Maps tid -> MonoInternalThread */
660 /* Protected by the loader lock */
661 static MonoGHashTable *tid_to_thread;
663 /* Maps tid -> MonoThread (not MonoInternalThread) */
664 /* Protected by the loader lock */
665 static MonoGHashTable *tid_to_thread_obj;
667 static MonoNativeThreadId debugger_thread_id;
669 static HANDLE debugger_thread_handle;
671 static int log_level;
673 static gboolean embedding;
675 static FILE *log_file;
677 /* Assemblies whose assembly load event has no been sent yet */
678 /* Protected by the dbg lock */
679 static GPtrArray *pending_assembly_loads;
681 /* Whenever the debugger thread has exited */
682 static gboolean debugger_thread_exited;
684 /* Cond variable used to wait for debugger_thread_exited becoming true */
685 static MonoCoopCond debugger_thread_exited_cond;
687 /* Mutex for the cond var above */
688 static MonoCoopMutex debugger_thread_exited_mutex;
690 static DebuggerProfiler debugger_profiler;
692 /* The single step request instance */
693 static SingleStepReq *ss_req;
695 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
696 /* Number of single stepping operations in progress */
700 /* The protocol version of the client */
701 static int major_version, minor_version;
703 /* Whenever the variables above are set by the client */
704 static gboolean protocol_version_set;
706 /* A hash table containing all active domains */
707 /* Protected by the loader lock */
708 static GHashTable *domains;
710 /* The number of times the runtime is suspended */
711 static gint32 suspend_count;
713 /* Whenever to buffer reply messages and send them together */
714 static gboolean buffer_replies;
716 /* Buffered reply packets */
717 static ReplyPacket reply_packets [128];
720 #define dbg_lock() mono_coop_mutex_lock (&debug_mutex)
721 #define dbg_unlock() mono_coop_mutex_unlock (&debug_mutex)
722 static MonoCoopMutex debug_mutex;
724 static void transport_init (void);
725 static void transport_connect (const char *address);
726 static gboolean transport_handshake (void);
727 static void register_transport (DebuggerTransport *trans);
729 static guint32 WINAPI debugger_thread (void *arg);
731 static void runtime_initialized (MonoProfiler *prof);
733 static void runtime_shutdown (MonoProfiler *prof);
735 static void thread_startup (MonoProfiler *prof, uintptr_t tid);
737 static void thread_end (MonoProfiler *prof, uintptr_t tid);
739 static void appdomain_load (MonoProfiler *prof, MonoDomain *domain, int result);
741 static void appdomain_start_unload (MonoProfiler *prof, MonoDomain *domain);
743 static void appdomain_unload (MonoProfiler *prof, MonoDomain *domain);
745 static void emit_appdomain_load (gpointer key, gpointer value, gpointer user_data);
747 static void emit_thread_start (gpointer key, gpointer value, gpointer user_data);
749 static void invalidate_each_thread (gpointer key, gpointer value, gpointer user_data);
751 static void assembly_load (MonoProfiler *prof, MonoAssembly *assembly, int result);
753 static void assembly_unload (MonoProfiler *prof, MonoAssembly *assembly);
755 static void emit_assembly_load (gpointer assembly, gpointer user_data);
757 static void emit_type_load (gpointer key, gpointer type, gpointer user_data);
759 static void jit_end (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *jinfo, int result);
761 static void add_pending_breakpoints (MonoMethod *method, MonoJitInfo *jinfo);
763 static void start_single_stepping (void);
765 static void stop_single_stepping (void);
767 static void suspend_current (void);
769 static void clear_event_requests_for_assembly (MonoAssembly *assembly);
771 static void clear_types_for_assembly (MonoAssembly *assembly);
773 static void clear_breakpoints_for_domain (MonoDomain *domain);
775 static void process_profiler_event (EventKind event, gpointer arg);
777 /* Submodule init/cleanup */
778 static void breakpoints_init (void);
779 static void breakpoints_cleanup (void);
781 static void objrefs_init (void);
782 static void objrefs_cleanup (void);
784 static void ids_init (void);
785 static void ids_cleanup (void);
787 static void suspend_init (void);
789 static void ss_start (SingleStepReq *ss_req, MonoMethod *method, SeqPoint *sp, MonoSeqPointInfo *info, MonoContext *ctx, DebuggerTlsData *tls, gboolean step_to_catch,
790 StackFrame **frames, int nframes);
791 static ErrorCode ss_create (MonoInternalThread *thread, StepSize size, StepDepth depth, StepFilter filter, EventRequest *req);
792 static void ss_destroy (SingleStepReq *req);
794 static void start_debugger_thread (void);
795 static void stop_debugger_thread (void);
797 static void finish_agent_init (gboolean on_startup);
799 static void process_profiler_event (EventKind event, gpointer arg);
801 static void invalidate_frames (DebuggerTlsData *tls);
803 #ifndef DISABLE_SOCKET_TRANSPORT
805 register_socket_transport (void);
808 static inline gboolean
809 is_debugger_thread (void)
811 return mono_native_thread_id_equals (mono_native_thread_id_get (), debugger_thread_id);
815 parse_address (char *address, char **host, int *port)
817 char *pos = strchr (address, ':');
819 if (pos == NULL || pos == address)
822 *host = (char *)g_malloc (pos - address + 1);
823 strncpy (*host, address, pos - address);
824 (*host) [pos - address] = '\0';
826 *port = atoi (pos + 1);
834 fprintf (stderr, "Usage: mono --debugger-agent=[<option>=<value>,...] ...\n");
835 fprintf (stderr, "Available options:\n");
836 fprintf (stderr, " transport=<transport>\t\tTransport to use for connecting to the debugger (mandatory, possible values: 'dt_socket')\n");
837 fprintf (stderr, " address=<hostname>:<port>\tAddress to connect to (mandatory)\n");
838 fprintf (stderr, " loglevel=<n>\t\t\tLog level (defaults to 0)\n");
839 fprintf (stderr, " logfile=<file>\t\tFile to log to (defaults to stdout)\n");
840 fprintf (stderr, " suspend=y/n\t\t\tWhether to suspend after startup.\n");
841 fprintf (stderr, " timeout=<n>\t\t\tTimeout for connecting in milliseconds.\n");
842 fprintf (stderr, " server=y/n\t\t\tWhether to listen for a client connection.\n");
843 fprintf (stderr, " keepalive=<n>\t\t\tSend keepalive events every n milliseconds.\n");
844 fprintf (stderr, " setpgid=y/n\t\t\tWhether to call setpid(0, 0) after startup.\n");
845 fprintf (stderr, " help\t\t\t\tPrint this help.\n");
849 parse_flag (const char *option, char *flag)
851 if (!strcmp (flag, "y"))
853 else if (!strcmp (flag, "n"))
856 fprintf (stderr, "debugger-agent: The valid values for the '%s' option are 'y' and 'n'.\n", option);
863 mono_debugger_agent_parse_options (char *options)
870 #ifndef MONO_ARCH_SOFT_DEBUG_SUPPORTED
871 fprintf (stderr, "--debugger-agent is not supported on this platform.\n");
875 extra = g_getenv ("MONO_SDB_ENV_OPTIONS");
877 options = g_strdup_printf ("%s,%s", options, extra);
879 agent_config.enabled = TRUE;
880 agent_config.suspend = TRUE;
881 agent_config.server = FALSE;
882 agent_config.defer = FALSE;
883 agent_config.address = NULL;
885 //agent_config.log_level = 10;
887 args = g_strsplit (options, ",", -1);
888 for (ptr = args; ptr && *ptr; ptr ++) {
891 if (strncmp (arg, "transport=", 10) == 0) {
892 agent_config.transport = g_strdup (arg + 10);
893 } else if (strncmp (arg, "address=", 8) == 0) {
894 agent_config.address = g_strdup (arg + 8);
895 } else if (strncmp (arg, "loglevel=", 9) == 0) {
896 agent_config.log_level = atoi (arg + 9);
897 } else if (strncmp (arg, "logfile=", 8) == 0) {
898 agent_config.log_file = g_strdup (arg + 8);
899 } else if (strncmp (arg, "suspend=", 8) == 0) {
900 agent_config.suspend = parse_flag ("suspend", arg + 8);
901 } else if (strncmp (arg, "server=", 7) == 0) {
902 agent_config.server = parse_flag ("server", arg + 7);
903 } else if (strncmp (arg, "onuncaught=", 11) == 0) {
904 agent_config.onuncaught = parse_flag ("onuncaught", arg + 11);
905 } else if (strncmp (arg, "onthrow=", 8) == 0) {
906 /* We support multiple onthrow= options */
907 agent_config.onthrow = g_slist_append (agent_config.onthrow, g_strdup (arg + 8));
908 } else if (strncmp (arg, "onthrow", 7) == 0) {
909 agent_config.onthrow = g_slist_append (agent_config.onthrow, g_strdup (""));
910 } else if (strncmp (arg, "help", 4) == 0) {
913 } else if (strncmp (arg, "timeout=", 8) == 0) {
914 agent_config.timeout = atoi (arg + 8);
915 } else if (strncmp (arg, "launch=", 7) == 0) {
916 agent_config.launch = g_strdup (arg + 7);
917 } else if (strncmp (arg, "embedding=", 10) == 0) {
918 agent_config.embedding = atoi (arg + 10) == 1;
919 } else if (strncmp (arg, "keepalive=", 10) == 0) {
920 agent_config.keepalive = atoi (arg + 10);
921 } else if (strncmp (arg, "setpgid=", 8) == 0) {
922 agent_config.setpgid = parse_flag ("setpgid", arg + 8);
929 if (agent_config.server && !agent_config.suspend) {
930 /* Waiting for deferred attachment */
931 agent_config.defer = TRUE;
932 if (agent_config.address == NULL) {
933 agent_config.address = g_strdup_printf ("0.0.0.0:%u", 56000 + (getpid () % 1000));
937 //agent_config.log_level = 0;
939 if (agent_config.transport == NULL) {
940 fprintf (stderr, "debugger-agent: The 'transport' option is mandatory.\n");
944 if (agent_config.address == NULL && !agent_config.server) {
945 fprintf (stderr, "debugger-agent: The 'address' option is mandatory.\n");
950 if (!strcmp (agent_config.transport, "dt_socket")) {
951 if (agent_config.address && parse_address (agent_config.address, &host, &port)) {
952 fprintf (stderr, "debugger-agent: The format of the 'address' options is '<host>:<port>'\n");
959 mono_debugger_agent_init (void)
961 mono_coop_mutex_init_recursive (&debug_mutex);
963 if (!agent_config.enabled)
968 /* Need to know whenever a thread has acquired the loader mutex */
969 mono_loader_lock_track_ownership (TRUE);
971 event_requests = g_ptr_array_new ();
973 mono_coop_mutex_init (&debugger_thread_exited_mutex);
974 mono_coop_cond_init (&debugger_thread_exited_cond);
976 mono_profiler_install ((MonoProfiler*)&debugger_profiler, runtime_shutdown);
977 mono_profiler_set_events ((MonoProfileFlags)(MONO_PROFILE_APPDOMAIN_EVENTS | MONO_PROFILE_THREADS | MONO_PROFILE_ASSEMBLY_EVENTS | MONO_PROFILE_JIT_COMPILATION | MONO_PROFILE_METHOD_EVENTS));
978 mono_profiler_install_runtime_initialized (runtime_initialized);
979 mono_profiler_install_appdomain (NULL, appdomain_load, appdomain_start_unload, appdomain_unload);
980 mono_profiler_install_thread (thread_startup, thread_end);
981 mono_profiler_install_assembly (NULL, assembly_load, assembly_unload, NULL);
982 mono_profiler_install_jit_end (jit_end);
984 mono_native_tls_alloc (&debugger_tls_id, NULL);
986 /* Needed by the hash_table_new_type () call below */
987 mono_gc_base_init ();
989 thread_to_tls = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_KEY_GC, MONO_ROOT_SOURCE_DEBUGGER, "thread-to-tls table");
990 MONO_GC_REGISTER_ROOT_FIXED (thread_to_tls, MONO_ROOT_SOURCE_DEBUGGER, "thread-to-tls table");
992 tid_to_thread = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_VALUE_GC, MONO_ROOT_SOURCE_DEBUGGER, "tid-to-thread table");
993 MONO_GC_REGISTER_ROOT_FIXED (tid_to_thread, MONO_ROOT_SOURCE_DEBUGGER, "tid-to-thread table");
995 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");
996 MONO_GC_REGISTER_ROOT_FIXED (tid_to_thread_obj, MONO_ROOT_SOURCE_DEBUGGER, "tid-to-thread object table");
998 pending_assembly_loads = g_ptr_array_new ();
999 domains = g_hash_table_new (mono_aligned_addr_hash, NULL);
1001 log_level = agent_config.log_level;
1003 embedding = agent_config.embedding;
1004 disconnected = TRUE;
1006 if (agent_config.log_file) {
1007 log_file = fopen (agent_config.log_file, "w+");
1009 fprintf (stderr, "Unable to create log file '%s': %s.\n", agent_config.log_file, strerror (errno));
1018 breakpoints_init ();
1021 mini_get_debug_options ()->gen_sdb_seq_points = TRUE;
1023 * This is needed because currently we don't handle liveness info.
1025 mini_get_debug_options ()->mdb_optimizations = TRUE;
1027 #ifndef MONO_ARCH_HAVE_CONTEXT_SET_INT_REG
1028 /* This is needed because we can't set local variables in registers yet */
1029 mono_disable_optimizations (MONO_OPT_LINEARS);
1033 * The stack walk done from thread_interrupt () needs to be signal safe, but it
1034 * isn't, since it can call into mono_aot_find_jit_info () which is not signal
1035 * safe (#3411). So load AOT info eagerly when the debugger is running as a
1038 mini_get_debug_options ()->load_aot_jit_info_eagerly = TRUE;
1041 if (agent_config.setpgid)
1045 if (!agent_config.onuncaught && !agent_config.onthrow)
1046 finish_agent_init (TRUE);
1050 * finish_agent_init:
1052 * Finish the initialization of the agent. This involves connecting the transport
1053 * and starting the agent thread. This is either done at startup, or
1054 * in response to some event like an unhandled exception.
1057 finish_agent_init (gboolean on_startup)
1061 if (InterlockedCompareExchange (&inited, 1, 0) == 1)
1064 if (agent_config.launch) {
1067 // FIXME: Generated address
1068 // FIXME: Races with transport_connect ()
1070 argv [0] = agent_config.launch;
1071 argv [1] = agent_config.transport;
1072 argv [2] = agent_config.address;
1075 res = g_spawn_async_with_pipes (NULL, argv, NULL, (GSpawnFlags)0, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
1077 fprintf (stderr, "Failed to execute '%s'.\n", agent_config.launch);
1082 transport_connect (agent_config.address);
1085 /* Do some which is usually done after sending the VMStart () event */
1086 vm_start_event_sent = TRUE;
1087 start_debugger_thread ();
1092 mono_debugger_agent_cleanup (void)
1097 stop_debugger_thread ();
1099 breakpoints_cleanup ();
1108 #ifndef DISABLE_SOCKET_TRANSPORT
1113 * recv() + handle incomplete reads and EINTR
1116 socket_transport_recv (void *buf, int len)
1122 static gint32 last_keepalive;
1125 MONO_PREPARE_BLOCKING;
1129 res = recv (fd, (char *) buf + total, len - total, flags);
1132 if (agent_config.keepalive) {
1133 gboolean need_keepalive = FALSE;
1134 if (res == -1 && get_last_sock_error () == MONO_EWOULDBLOCK) {
1135 need_keepalive = TRUE;
1136 } else if (res == -1) {
1137 /* This could happen if recv () is interrupted repeatedly */
1138 msecs = mono_msec_ticks ();
1139 if (msecs - last_keepalive >= agent_config.keepalive) {
1140 need_keepalive = TRUE;
1141 last_keepalive = msecs;
1144 if (need_keepalive) {
1145 process_profiler_event (EVENT_KIND_KEEPALIVE, NULL);
1149 } while ((res > 0 && total < len) || (res == -1 && get_last_sock_error () == MONO_EINTR));
1151 MONO_FINISH_BLOCKING;
1157 set_keepalive (void)
1162 if (!agent_config.keepalive || !conn_fd)
1165 tv.tv_sec = agent_config.keepalive / 1000;
1166 tv.tv_usec = (agent_config.keepalive % 1000) * 1000;
1168 result = setsockopt (conn_fd, SOL_SOCKET, SO_RCVTIMEO, (char *) &tv, sizeof(struct timeval));
1169 g_assert (result >= 0);
1173 socket_transport_accept (int socket_fd)
1175 MONO_PREPARE_BLOCKING;
1176 conn_fd = accept (socket_fd, NULL, NULL);
1177 MONO_FINISH_BLOCKING;
1179 if (conn_fd == -1) {
1180 fprintf (stderr, "debugger-agent: Unable to listen on %d\n", socket_fd);
1182 DEBUG_PRINTF (1, "Accepted connection from client, connection fd=%d.\n", conn_fd);
1189 socket_transport_send (void *data, int len)
1193 MONO_PREPARE_BLOCKING;
1196 res = send (conn_fd, data, len, 0);
1197 } while (res == -1 && get_last_sock_error () == MONO_EINTR);
1199 MONO_FINISH_BLOCKING;
1208 * socket_transport_connect:
1210 * Connect/Listen on HOST:PORT. If HOST is NULL, generate an address and listen on it.
1213 socket_transport_connect (const char *address)
1215 MonoAddressInfo *result;
1216 MonoAddressEntry *rp;
1217 int sfd = -1, s, res;
1221 if (agent_config.address) {
1222 res = parse_address (agent_config.address, &host, &port);
1223 g_assert (res == 0);
1234 mono_network_init ();
1236 /* Obtain address(es) matching host/port */
1237 s = mono_get_address_info (host, port, MONO_HINT_UNSPECIFIED, &result);
1239 fprintf (stderr, "debugger-agent: Unable to resolve %s:%d: %d\n", host, port, s); // FIXME add portable error conversion functions
1244 if (agent_config.server) {
1245 /* Wait for a connection */
1247 struct sockaddr_in addr;
1250 /* No address, generate one */
1251 sfd = socket (AF_INET, SOCK_STREAM, 0);
1254 /* This will bind the socket to a random port */
1255 res = listen (sfd, 16);
1257 fprintf (stderr, "debugger-agent: Unable to setup listening socket: %s\n", strerror (get_last_sock_error ()));
1262 addrlen = sizeof (addr);
1263 memset (&addr, 0, sizeof (addr));
1264 res = getsockname (sfd, (struct sockaddr*)&addr, &addrlen);
1265 g_assert (res == 0);
1267 host = (char*)"127.0.0.1";
1268 port = ntohs (addr.sin_port);
1270 /* Emit the address to stdout */
1271 /* FIXME: Should print another interface, not localhost */
1272 printf ("%s:%d\n", host, port);
1274 /* Listen on the provided address */
1275 for (rp = result->entries; rp != NULL; rp = rp->next) {
1276 MonoSocketAddress sockaddr;
1280 mono_socket_address_init (&sockaddr, &sock_len, rp->family, &rp->address, port);
1282 sfd = socket (rp->family, rp->socktype,
1287 if (setsockopt (sfd, SOL_SOCKET, SO_REUSEADDR, &n, sizeof(n)) == -1)
1290 res = bind (sfd, &sockaddr.addr, sock_len);
1294 res = listen (sfd, 16);
1301 mono_free_address_info (result);
1304 if (agent_config.defer)
1307 DEBUG_PRINTF (1, "Listening on %s:%d (timeout=%d ms)...\n", host, port, agent_config.timeout);
1309 if (agent_config.timeout) {
1314 tv.tv_usec = agent_config.timeout * 1000;
1316 FD_SET (sfd, &readfds);
1318 MONO_PREPARE_BLOCKING;
1319 res = select (sfd + 1, &readfds, NULL, NULL, &tv);
1320 MONO_FINISH_BLOCKING;
1323 fprintf (stderr, "debugger-agent: Timed out waiting to connect.\n");
1328 conn_fd = socket_transport_accept (sfd);
1332 DEBUG_PRINTF (1, "Accepted connection from client, socket fd=%d.\n", conn_fd);
1334 /* Connect to the specified address */
1335 /* FIXME: Respect the timeout */
1336 for (rp = result->entries; rp != NULL; rp = rp->next) {
1337 MonoSocketAddress sockaddr;
1340 mono_socket_address_init (&sockaddr, &sock_len, rp->family, &rp->address, port);
1342 sfd = socket (rp->family, rp->socktype,
1347 MONO_PREPARE_BLOCKING;
1348 res = connect (sfd, &sockaddr.addr, sock_len);
1349 MONO_FINISH_BLOCKING;
1352 break; /* Success */
1354 MONO_PREPARE_BLOCKING;
1356 MONO_FINISH_BLOCKING;
1360 fprintf (stderr, "debugger-agent: Unable to connect to %s:%d\n", host, port);
1366 mono_free_address_info (result);
1369 if (!transport_handshake ())
1374 socket_transport_close1 (void)
1376 /* This will interrupt the agent thread */
1377 /* Close the read part only so it can still send back replies */
1378 /* Also shut down the connection listener so that we can exit normally */
1380 /* SD_RECEIVE doesn't break the recv in the debugger thread */
1381 shutdown (conn_fd, SD_BOTH);
1382 shutdown (listen_fd, SD_BOTH);
1383 closesocket (listen_fd);
1385 shutdown (conn_fd, SHUT_RD);
1386 shutdown (listen_fd, SHUT_RDWR);
1387 MONO_PREPARE_BLOCKING;
1389 MONO_FINISH_BLOCKING;
1394 socket_transport_close2 (void)
1397 shutdown (conn_fd, SD_BOTH);
1399 shutdown (conn_fd, SHUT_RDWR);
1404 register_socket_transport (void)
1406 DebuggerTransport trans;
1408 trans.name = "dt_socket";
1409 trans.connect = socket_transport_connect;
1410 trans.close1 = socket_transport_close1;
1411 trans.close2 = socket_transport_close2;
1412 trans.send = socket_transport_send;
1413 trans.recv = socket_transport_recv;
1415 register_transport (&trans);
1419 * socket_fd_transport_connect:
1423 socket_fd_transport_connect (const char *address)
1427 res = sscanf (address, "%d", &conn_fd);
1429 fprintf (stderr, "debugger-agent: socket-fd transport address is invalid: '%s'\n", address);
1433 if (!transport_handshake ())
1438 register_socket_fd_transport (void)
1440 DebuggerTransport trans;
1442 /* This is the same as the 'dt_socket' transport, but receives an already connected socket fd */
1443 trans.name = "socket-fd";
1444 trans.connect = socket_fd_transport_connect;
1445 trans.close1 = socket_transport_close1;
1446 trans.close2 = socket_transport_close2;
1447 trans.send = socket_transport_send;
1448 trans.recv = socket_transport_recv;
1450 register_transport (&trans);
1453 #endif /* DISABLE_SOCKET_TRANSPORT */
1459 #define MAX_TRANSPORTS 16
1461 static DebuggerTransport *transport;
1463 static DebuggerTransport transports [MAX_TRANSPORTS];
1464 static int ntransports;
1467 mono_debugger_agent_register_transport (DebuggerTransport *trans);
1470 mono_debugger_agent_register_transport (DebuggerTransport *trans)
1472 register_transport (trans);
1476 register_transport (DebuggerTransport *trans)
1478 g_assert (ntransports < MAX_TRANSPORTS);
1480 memcpy (&transports [ntransports], trans, sizeof (DebuggerTransport));
1485 transport_init (void)
1489 #ifndef DISABLE_SOCKET_TRANSPORT
1490 register_socket_transport ();
1491 register_socket_fd_transport ();
1494 for (i = 0; i < ntransports; ++i) {
1495 if (!strcmp (agent_config.transport, transports [i].name))
1498 if (i == ntransports) {
1499 fprintf (stderr, "debugger-agent: The supported values for the 'transport' option are: ");
1500 for (i = 0; i < ntransports; ++i)
1501 fprintf (stderr, "%s'%s'", i > 0 ? ", " : "", transports [i].name);
1502 fprintf (stderr, "\n");
1505 transport = &transports [i];
1509 transport_connect (const char *address)
1511 transport->connect (address);
1515 transport_close1 (void)
1517 transport->close1 ();
1521 transport_close2 (void)
1523 transport->close2 ();
1527 transport_send (void *buf, int len)
1529 return transport->send (buf, len);
1533 transport_recv (void *buf, int len)
1535 return transport->recv (buf, len);
1539 mono_debugger_agent_transport_handshake (void)
1541 return transport_handshake ();
1545 transport_handshake (void)
1547 char handshake_msg [128];
1551 disconnected = TRUE;
1553 /* Write handshake message */
1554 sprintf (handshake_msg, "DWP-Handshake");
1557 res = transport_send (handshake_msg, strlen (handshake_msg));
1558 } while (res == -1 && get_last_sock_error () == MONO_EINTR);
1560 g_assert (res != -1);
1563 res = transport_recv (buf, strlen (handshake_msg));
1564 if ((res != strlen (handshake_msg)) || (memcmp (buf, handshake_msg, strlen (handshake_msg)) != 0)) {
1565 fprintf (stderr, "debugger-agent: DWP handshake failed.\n");
1570 * To support older clients, the client sends its protocol version after connecting
1571 * using a command. Until that is received, default to our protocol version.
1573 major_version = MAJOR_VERSION;
1574 minor_version = MINOR_VERSION;
1575 protocol_version_set = FALSE;
1577 #ifndef DISABLE_SOCKET_TRANSPORT
1578 // FIXME: Move this somewhere else
1580 * Set TCP_NODELAY on the socket so the client receives events/command
1581 * results immediately.
1585 int result = setsockopt (conn_fd,
1590 g_assert (result >= 0);
1596 disconnected = FALSE;
1601 stop_debugger_thread (void)
1606 transport_close1 ();
1609 * Wait for the thread to exit.
1611 * If we continue with the shutdown without waiting for it, then the client might
1612 * not receive an answer to its last command like a resume.
1614 if (!is_debugger_thread ()) {
1616 mono_coop_mutex_lock (&debugger_thread_exited_mutex);
1617 if (!debugger_thread_exited)
1618 mono_coop_cond_wait (&debugger_thread_exited_cond, &debugger_thread_exited_mutex);
1619 mono_coop_mutex_unlock (&debugger_thread_exited_mutex);
1620 } while (!debugger_thread_exited);
1623 transport_close2 ();
1627 start_debugger_thread (void)
1629 debugger_thread_handle = mono_threads_create_thread (debugger_thread, NULL, 0, 0, NULL);
1630 g_assert (debugger_thread_handle);
1634 * Functions to decode protocol data
1638 decode_byte (guint8 *buf, guint8 **endbuf, guint8 *limit)
1641 g_assert (*endbuf <= limit);
1646 decode_int (guint8 *buf, guint8 **endbuf, guint8 *limit)
1649 g_assert (*endbuf <= limit);
1651 return (((int)buf [0]) << 24) | (((int)buf [1]) << 16) | (((int)buf [2]) << 8) | (((int)buf [3]) << 0);
1654 static inline gint64
1655 decode_long (guint8 *buf, guint8 **endbuf, guint8 *limit)
1657 guint32 high = decode_int (buf, &buf, limit);
1658 guint32 low = decode_int (buf, &buf, limit);
1662 return ((((guint64)high) << 32) | ((guint64)low));
1666 decode_id (guint8 *buf, guint8 **endbuf, guint8 *limit)
1668 return decode_int (buf, endbuf, limit);
1672 decode_string (guint8 *buf, guint8 **endbuf, guint8 *limit)
1674 int len = decode_int (buf, &buf, limit);
1682 s = (char *)g_malloc (len + 1);
1685 memcpy (s, buf, len);
1694 * Functions to encode protocol data
1698 buffer_init (Buffer *buf, int size)
1700 buf->buf = (guint8 *)g_malloc (size);
1702 buf->end = buf->buf + size;
1706 buffer_len (Buffer *buf)
1708 return buf->p - buf->buf;
1712 buffer_make_room (Buffer *buf, int size)
1714 if (buf->end - buf->p < size) {
1715 int new_size = buf->end - buf->buf + size + 32;
1716 guint8 *p = (guint8 *)g_realloc (buf->buf, new_size);
1717 size = buf->p - buf->buf;
1720 buf->end = buf->buf + new_size;
1725 buffer_add_byte (Buffer *buf, guint8 val)
1727 buffer_make_room (buf, 1);
1733 buffer_add_short (Buffer *buf, guint32 val)
1735 buffer_make_room (buf, 2);
1736 buf->p [0] = (val >> 8) & 0xff;
1737 buf->p [1] = (val >> 0) & 0xff;
1742 buffer_add_int (Buffer *buf, guint32 val)
1744 buffer_make_room (buf, 4);
1745 buf->p [0] = (val >> 24) & 0xff;
1746 buf->p [1] = (val >> 16) & 0xff;
1747 buf->p [2] = (val >> 8) & 0xff;
1748 buf->p [3] = (val >> 0) & 0xff;
1753 buffer_add_long (Buffer *buf, guint64 l)
1755 buffer_add_int (buf, (l >> 32) & 0xffffffff);
1756 buffer_add_int (buf, (l >> 0) & 0xffffffff);
1760 buffer_add_id (Buffer *buf, int id)
1762 buffer_add_int (buf, (guint64)id);
1766 buffer_add_data (Buffer *buf, guint8 *data, int len)
1768 buffer_make_room (buf, len);
1769 memcpy (buf->p, data, len);
1774 buffer_add_string (Buffer *buf, const char *str)
1779 buffer_add_int (buf, 0);
1782 buffer_add_int (buf, len);
1783 buffer_add_data (buf, (guint8*)str, len);
1788 buffer_add_buffer (Buffer *buf, Buffer *data)
1790 buffer_add_data (buf, data->buf, buffer_len (data));
1794 buffer_free (Buffer *buf)
1800 send_packet (int command_set, int command, Buffer *data)
1806 id = InterlockedIncrement (&packet_id);
1808 len = data->p - data->buf + 11;
1809 buffer_init (&buf, len);
1810 buffer_add_int (&buf, len);
1811 buffer_add_int (&buf, id);
1812 buffer_add_byte (&buf, 0); /* flags */
1813 buffer_add_byte (&buf, command_set);
1814 buffer_add_byte (&buf, command);
1815 memcpy (buf.buf + 11, data->buf, data->p - data->buf);
1817 res = transport_send (buf.buf, len);
1825 send_reply_packets (int npackets, ReplyPacket *packets)
1832 for (i = 0; i < npackets; ++i)
1833 len += buffer_len (packets [i].data) + 11;
1834 buffer_init (&buf, len);
1835 for (i = 0; i < npackets; ++i) {
1836 buffer_add_int (&buf, buffer_len (packets [i].data) + 11);
1837 buffer_add_int (&buf, packets [i].id);
1838 buffer_add_byte (&buf, 0x80); /* flags */
1839 buffer_add_byte (&buf, (packets [i].error >> 8) & 0xff);
1840 buffer_add_byte (&buf, packets [i].error);
1841 buffer_add_buffer (&buf, packets [i].data);
1844 res = transport_send (buf.buf, len);
1852 send_reply_packet (int id, int error, Buffer *data)
1856 memset (&packet, 0, sizeof (ReplyPacket));
1858 packet.error = error;
1861 return send_reply_packets (1, &packet);
1865 send_buffered_reply_packets (void)
1869 send_reply_packets (nreply_packets, reply_packets);
1870 for (i = 0; i < nreply_packets; ++i)
1871 buffer_free (reply_packets [i].data);
1872 DEBUG_PRINTF (1, "[dbg] Sent %d buffered reply packets [at=%lx].\n", nreply_packets, (long)mono_100ns_ticks () / 10000);
1877 buffer_reply_packet (int id, int error, Buffer *data)
1881 if (nreply_packets == 128)
1882 send_buffered_reply_packets ();
1884 p = &reply_packets [nreply_packets];
1887 p->data = g_new0 (Buffer, 1);
1888 buffer_init (p->data, buffer_len (data));
1889 buffer_add_buffer (p->data, data);
1898 * Represents an object accessible by the debugger client.
1901 /* Unique id used in the wire protocol to refer to objects */
1904 * A weakref gc handle pointing to the object. The gc handle is used to
1905 * detect if the object was garbage collected.
1910 /* Maps objid -> ObjRef */
1911 /* Protected by the loader lock */
1912 static GHashTable *objrefs;
1913 /* Protected by the loader lock */
1914 static GHashTable *obj_to_objref;
1915 /* Protected by the dbg lock */
1916 static MonoGHashTable *suspended_objs;
1919 free_objref (gpointer value)
1921 ObjRef *o = (ObjRef *)value;
1923 mono_gchandle_free (o->handle);
1931 objrefs = g_hash_table_new_full (NULL, NULL, NULL, free_objref);
1932 obj_to_objref = g_hash_table_new (NULL, NULL);
1933 suspended_objs = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_KEY_GC, MONO_ROOT_SOURCE_DEBUGGER, "suspended objects table");
1934 MONO_GC_REGISTER_ROOT_FIXED (suspended_objs, MONO_ROOT_SOURCE_DEBUGGER, "suspended objects table");
1938 objrefs_cleanup (void)
1940 g_hash_table_destroy (objrefs);
1945 * Return an ObjRef for OBJ.
1948 get_objref (MonoObject *obj)
1951 GSList *reflist = NULL, *l;
1957 if (suspend_count) {
1959 * Have to keep object refs created during suspensions alive for the duration of the suspension, so GCs during invokes don't collect them.
1962 mono_g_hash_table_insert (suspended_objs, obj, NULL);
1966 mono_loader_lock ();
1968 /* FIXME: The tables can grow indefinitely */
1970 if (mono_gc_is_moving ()) {
1972 * Objects can move, so use a hash table mapping hash codes to lists of
1973 * ObjRef structures.
1975 hash = mono_object_hash (obj);
1977 reflist = (GSList *)g_hash_table_lookup (obj_to_objref, GINT_TO_POINTER (hash));
1978 for (l = reflist; l; l = l->next) {
1979 ref = (ObjRef *)l->data;
1980 if (ref && mono_gchandle_get_target (ref->handle) == obj) {
1981 mono_loader_unlock ();
1986 /* Use a hash table with masked pointers to internalize object references */
1987 ref = (ObjRef *)g_hash_table_lookup (obj_to_objref, GINT_TO_POINTER (~((gsize)obj)));
1988 /* ref might refer to a different object with the same addr which was GCd */
1989 if (ref && mono_gchandle_get_target (ref->handle) == obj) {
1990 mono_loader_unlock ();
1995 ref = g_new0 (ObjRef, 1);
1996 ref->id = InterlockedIncrement (&objref_id);
1997 ref->handle = mono_gchandle_new_weakref (obj, FALSE);
1999 g_hash_table_insert (objrefs, GINT_TO_POINTER (ref->id), ref);
2001 if (mono_gc_is_moving ()) {
2002 reflist = g_slist_append (reflist, ref);
2003 g_hash_table_insert (obj_to_objref, GINT_TO_POINTER (hash), reflist);
2005 g_hash_table_insert (obj_to_objref, GINT_TO_POINTER (~((gsize)obj)), ref);
2008 mono_loader_unlock ();
2014 true_pred (gpointer key, gpointer value, gpointer user_data)
2020 clear_suspended_objs (void)
2023 mono_g_hash_table_foreach_remove (suspended_objs, true_pred, NULL);
2028 get_objid (MonoObject *obj)
2030 return get_objref (obj)->id;
2034 * Set OBJ to the object identified by OBJID.
2035 * Returns 0 or an error code if OBJID is invalid or the object has been garbage
2039 get_object_allow_null (int objid, MonoObject **obj)
2049 return ERR_INVALID_OBJECT;
2051 mono_loader_lock ();
2053 ref = (ObjRef *)g_hash_table_lookup (objrefs, GINT_TO_POINTER (objid));
2056 *obj = mono_gchandle_get_target (ref->handle);
2057 mono_loader_unlock ();
2059 return ERR_INVALID_OBJECT;
2062 mono_loader_unlock ();
2063 return ERR_INVALID_OBJECT;
2068 get_object (int objid, MonoObject **obj)
2070 ErrorCode err = get_object_allow_null (objid, obj);
2072 if (err != ERR_NONE)
2075 return ERR_INVALID_OBJECT;
2080 decode_objid (guint8 *buf, guint8 **endbuf, guint8 *limit)
2082 return decode_id (buf, endbuf, limit);
2086 buffer_add_objid (Buffer *buf, MonoObject *o)
2088 buffer_add_id (buf, get_objid (o));
2107 * Represents a runtime structure accessible to the debugger client
2110 /* Unique id used in the wire protocol */
2112 /* Domain of the runtime structure, NULL if the domain was unloaded */
2119 MonoAssembly *assembly;
2120 MonoClassField *field;
2122 MonoProperty *property;
2127 /* Maps runtime structure -> Id */
2128 /* Protected by the dbg lock */
2129 GHashTable *val_to_id [ID_NUM];
2130 /* Classes whose class load event has been sent */
2131 /* Protected by the loader lock */
2132 GHashTable *loaded_classes;
2133 /* Maps MonoClass->GPtrArray of file names */
2134 GHashTable *source_files;
2135 /* Maps source file basename -> GSList of classes */
2136 GHashTable *source_file_to_class;
2137 /* Same with ignore-case */
2138 GHashTable *source_file_to_class_ignorecase;
2142 /* Protected by the dbg lock */
2143 static GPtrArray *ids [ID_NUM];
2150 for (i = 0; i < ID_NUM; ++i)
2151 ids [i] = g_ptr_array_new ();
2159 for (i = 0; i < ID_NUM; ++i) {
2161 for (j = 0; j < ids [i]->len; ++j)
2162 g_free (g_ptr_array_index (ids [i], j));
2163 g_ptr_array_free (ids [i], TRUE);
2170 mono_debugger_agent_free_domain_info (MonoDomain *domain)
2172 AgentDomainInfo *info = (AgentDomainInfo *)domain_jit_info (domain)->agent_info;
2174 GHashTableIter iter;
2175 GPtrArray *file_names;
2180 for (i = 0; i < ID_NUM; ++i)
2181 if (info->val_to_id [i])
2182 g_hash_table_destroy (info->val_to_id [i]);
2183 g_hash_table_destroy (info->loaded_classes);
2185 g_hash_table_iter_init (&iter, info->source_files);
2186 while (g_hash_table_iter_next (&iter, NULL, (void**)&file_names)) {
2187 for (i = 0; i < file_names->len; ++i)
2188 g_free (g_ptr_array_index (file_names, i));
2189 g_ptr_array_free (file_names, TRUE);
2192 g_hash_table_iter_init (&iter, info->source_file_to_class);
2193 while (g_hash_table_iter_next (&iter, (void**)&basename, (void**)&l)) {
2198 g_hash_table_iter_init (&iter, info->source_file_to_class_ignorecase);
2199 while (g_hash_table_iter_next (&iter, (void**)&basename, (void**)&l)) {
2207 domain_jit_info (domain)->agent_info = NULL;
2209 /* Clear ids referencing structures in the domain */
2211 for (i = 0; i < ID_NUM; ++i) {
2213 for (j = 0; j < ids [i]->len; ++j) {
2214 Id *id = (Id *)g_ptr_array_index (ids [i], j);
2215 if (id->domain == domain)
2222 mono_loader_lock ();
2223 g_hash_table_remove (domains, domain);
2224 mono_loader_unlock ();
2227 static AgentDomainInfo*
2228 get_agent_domain_info (MonoDomain *domain)
2230 AgentDomainInfo *info = NULL;
2232 mono_domain_lock (domain);
2234 info = (AgentDomainInfo *)domain_jit_info (domain)->agent_info;
2236 info = g_new0 (AgentDomainInfo, 1);
2237 domain_jit_info (domain)->agent_info = info;
2238 info->loaded_classes = g_hash_table_new (mono_aligned_addr_hash, NULL);
2239 info->source_files = g_hash_table_new (mono_aligned_addr_hash, NULL);
2240 info->source_file_to_class = g_hash_table_new (g_str_hash, g_str_equal);
2241 info->source_file_to_class_ignorecase = g_hash_table_new (g_str_hash, g_str_equal);
2244 mono_domain_unlock (domain);
2250 get_id (MonoDomain *domain, IdType type, gpointer val)
2253 AgentDomainInfo *info;
2258 info = get_agent_domain_info (domain);
2262 if (info->val_to_id [type] == NULL)
2263 info->val_to_id [type] = g_hash_table_new (mono_aligned_addr_hash, NULL);
2265 id = (Id *)g_hash_table_lookup (info->val_to_id [type], val);
2271 id = g_new0 (Id, 1);
2273 id->id = ids [type]->len + 1;
2274 id->domain = domain;
2277 g_hash_table_insert (info->val_to_id [type], val, id);
2278 g_ptr_array_add (ids [type], id);
2285 static inline gpointer
2286 decode_ptr_id (guint8 *buf, guint8 **endbuf, guint8 *limit, IdType type, MonoDomain **domain, ErrorCode *err)
2290 int id = decode_id (buf, endbuf, limit);
2299 // FIXME: error handling
2301 g_assert (id > 0 && id <= ids [type]->len);
2303 res = (Id *)g_ptr_array_index (ids [type], GPOINTER_TO_INT (id - 1));
2306 if (res->domain == NULL) {
2307 DEBUG_PRINTF (1, "ERR_UNLOADED, id=%d, type=%d.\n", id, type);
2308 *err = ERR_UNLOADED;
2313 *domain = res->domain;
2315 return res->data.val;
2319 buffer_add_ptr_id (Buffer *buf, MonoDomain *domain, IdType type, gpointer val)
2321 int id = get_id (domain, type, val);
2323 buffer_add_id (buf, id);
2327 static inline MonoClass*
2328 decode_typeid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2332 klass = (MonoClass *)decode_ptr_id (buf, endbuf, limit, ID_TYPE, domain, err);
2333 if (G_UNLIKELY (log_level >= 2) && klass) {
2336 s = mono_type_full_name (&klass->byval_arg);
2337 DEBUG_PRINTF (2, "[dbg] recv class [%s]\n", s);
2343 static inline MonoAssembly*
2344 decode_assemblyid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2346 return (MonoAssembly *)decode_ptr_id (buf, endbuf, limit, ID_ASSEMBLY, domain, err);
2349 static inline MonoImage*
2350 decode_moduleid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2352 return (MonoImage *)decode_ptr_id (buf, endbuf, limit, ID_MODULE, domain, err);
2355 static inline MonoMethod*
2356 decode_methodid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2360 m = (MonoMethod *)decode_ptr_id (buf, endbuf, limit, ID_METHOD, domain, err);
2361 if (G_UNLIKELY (log_level >= 2) && m) {
2364 s = mono_method_full_name (m, TRUE);
2365 DEBUG_PRINTF (2, "[dbg] recv method [%s]\n", s);
2371 static inline MonoClassField*
2372 decode_fieldid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2374 return (MonoClassField *)decode_ptr_id (buf, endbuf, limit, ID_FIELD, domain, err);
2377 static inline MonoDomain*
2378 decode_domainid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2380 return (MonoDomain *)decode_ptr_id (buf, endbuf, limit, ID_DOMAIN, domain, err);
2383 static inline MonoProperty*
2384 decode_propertyid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2386 return (MonoProperty *)decode_ptr_id (buf, endbuf, limit, ID_PROPERTY, domain, err);
2390 buffer_add_typeid (Buffer *buf, MonoDomain *domain, MonoClass *klass)
2392 buffer_add_ptr_id (buf, domain, ID_TYPE, klass);
2393 if (G_UNLIKELY (log_level >= 2) && klass) {
2396 s = mono_type_full_name (&klass->byval_arg);
2397 if (is_debugger_thread ())
2398 DEBUG_PRINTF (2, "[dbg] send class [%s]\n", s);
2400 DEBUG_PRINTF (2, "[%p] send class [%s]\n", (gpointer) (gsize) mono_native_thread_id_get (), s);
2406 buffer_add_methodid (Buffer *buf, MonoDomain *domain, MonoMethod *method)
2408 buffer_add_ptr_id (buf, domain, ID_METHOD, method);
2409 if (G_UNLIKELY (log_level >= 2) && method) {
2412 s = mono_method_full_name (method, 1);
2413 DEBUG_PRINTF (2, "[dbg] send method [%s]\n", s);
2419 buffer_add_assemblyid (Buffer *buf, MonoDomain *domain, MonoAssembly *assembly)
2423 id = buffer_add_ptr_id (buf, domain, ID_ASSEMBLY, assembly);
2424 if (G_UNLIKELY (log_level >= 2) && assembly)
2425 DEBUG_PRINTF (2, "[dbg] send assembly [%s][%s][%d]\n", assembly->aname.name, domain->friendly_name, id);
2429 buffer_add_moduleid (Buffer *buf, MonoDomain *domain, MonoImage *image)
2431 buffer_add_ptr_id (buf, domain, ID_MODULE, image);
2435 buffer_add_fieldid (Buffer *buf, MonoDomain *domain, MonoClassField *field)
2437 buffer_add_ptr_id (buf, domain, ID_FIELD, field);
2441 buffer_add_propertyid (Buffer *buf, MonoDomain *domain, MonoProperty *property)
2443 buffer_add_ptr_id (buf, domain, ID_PROPERTY, property);
2447 buffer_add_domainid (Buffer *buf, MonoDomain *domain)
2449 buffer_add_ptr_id (buf, domain, ID_DOMAIN, domain);
2452 static void invoke_method (void);
2459 * save_thread_context:
2461 * Set CTX as the current threads context which is used for computing stack traces.
2462 * This function is signal-safe.
2465 save_thread_context (MonoContext *ctx)
2467 DebuggerTlsData *tls;
2469 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
2473 mono_thread_state_init_from_monoctx (&tls->context, ctx);
2475 mono_thread_state_init_from_current (&tls->context);
2478 /* Number of threads suspended */
2480 * If this is equal to the size of thread_to_tls, the runtime is considered
2483 static gint32 threads_suspend_count;
2485 static MonoCoopMutex suspend_mutex;
2487 /* Cond variable used to wait for suspend_count becoming 0 */
2488 static MonoCoopCond suspend_cond;
2490 /* Semaphore used to wait for a thread becoming suspended */
2491 static MonoCoopSem suspend_sem;
2496 mono_coop_mutex_init (&suspend_mutex);
2497 mono_coop_cond_init (&suspend_cond);
2498 mono_coop_sem_init (&suspend_sem, 0);
2503 StackFrameInfo last_frame;
2504 gboolean last_frame_set;
2508 } GetLastFrameUserData;
2511 get_last_frame (StackFrameInfo *info, MonoContext *ctx, gpointer user_data)
2513 GetLastFrameUserData *data = (GetLastFrameUserData *)user_data;
2515 if (info->type == FRAME_TYPE_MANAGED_TO_NATIVE || info->type == FRAME_TYPE_TRAMPOLINE)
2518 if (!data->last_frame_set) {
2519 /* Store the last frame */
2520 memcpy (&data->last_frame, info, sizeof (StackFrameInfo));
2521 data->last_frame_set = TRUE;
2524 /* Store the context/lmf for the frame above the last frame */
2525 memcpy (&data->ctx, ctx, sizeof (MonoContext));
2526 data->lmf = info->lmf;
2527 data->domain = info->domain;
2533 copy_unwind_state_from_frame_data (MonoThreadUnwindState *to, GetLastFrameUserData *data, gpointer jit_tls)
2535 memcpy (&to->ctx, &data->ctx, sizeof (MonoContext));
2537 to->unwind_data [MONO_UNWIND_DATA_DOMAIN] = data->domain;
2538 to->unwind_data [MONO_UNWIND_DATA_LMF] = data->lmf;
2539 to->unwind_data [MONO_UNWIND_DATA_JIT_TLS] = jit_tls;
2546 * Process interruption of a thread. This should be signal safe.
2548 * This always runs in the debugger thread.
2551 thread_interrupt (DebuggerTlsData *tls, MonoThreadInfo *info, MonoJitInfo *ji)
2554 MonoNativeThreadId tid;
2558 ip = MONO_CONTEXT_GET_IP (&mono_thread_info_get_suspend_state (info)->ctx);
2559 tid = mono_thread_info_get_tid (info);
2561 // FIXME: Races when the thread leaves managed code before hitting a single step
2564 if (ji && !ji->is_trampoline) {
2565 /* Running managed code, will be suspended by the single step code */
2566 DEBUG_PRINTF (1, "[%p] Received interrupt while at %s(%p), continuing.\n", (gpointer)(gsize)tid, jinfo_get_method (ji)->name, ip);
2569 * Running native code, will be suspended when it returns to/enters
2570 * managed code. Treat it as already suspended.
2571 * This might interrupt the code in process_single_step_inner (), we use the
2572 * tls->suspending flag to avoid races when that happens.
2574 if (!tls->suspended && !tls->suspending) {
2575 GetLastFrameUserData data;
2577 // FIXME: printf is not signal safe, but this is only used during
2578 // debugger debugging
2580 DEBUG_PRINTF (1, "[%p] Received interrupt while at %p, treating as suspended.\n", (gpointer)(gsize)tid, ip);
2581 //save_thread_context (&ctx);
2584 /* Already terminated */
2588 * We are in a difficult position: we want to be able to provide stack
2589 * traces for this thread, but we can't use the current ctx+lmf, since
2590 * the thread is still running, so it might return to managed code,
2591 * making these invalid.
2592 * So we start a stack walk and save the first frame, along with the
2593 * parent frame's ctx+lmf. This (hopefully) works because the thread will be
2594 * suspended when it returns to managed code, so the parent's ctx should
2597 data.last_frame_set = FALSE;
2598 mono_get_eh_callbacks ()->mono_walk_stack_with_state (get_last_frame, mono_thread_info_get_suspend_state (info), MONO_UNWIND_SIGNAL_SAFE, &data);
2599 if (data.last_frame_set) {
2600 gpointer jit_tls = ((MonoThreadInfo*)tls->thread->thread_info)->jit_data;
2602 memcpy (&tls->async_last_frame, &data.last_frame, sizeof (StackFrameInfo));
2604 copy_unwind_state_from_frame_data (&tls->async_state, &data, jit_tls);
2605 copy_unwind_state_from_frame_data (&tls->context, &data, jit_tls);
2607 tls->async_state.valid = FALSE;
2610 mono_memory_barrier ();
2612 tls->suspended = TRUE;
2613 mono_coop_sem_post (&suspend_sem);
2619 * reset_native_thread_suspend_state:
2621 * Reset the suspended flag and state on native threads
2624 reset_native_thread_suspend_state (gpointer key, gpointer value, gpointer user_data)
2626 DebuggerTlsData *tls = (DebuggerTlsData *)value;
2628 if (!tls->really_suspended && tls->suspended) {
2629 tls->suspended = FALSE;
2631 * The thread might still be running if it was executing native code, so the state won't be invalided by
2632 * suspend_current ().
2634 tls->context.valid = FALSE;
2635 tls->async_state.valid = FALSE;
2636 invalidate_frames (tls);
2641 DebuggerTlsData *tls;
2642 gboolean valid_info;
2645 static SuspendThreadResult
2646 debugger_interrupt_critical (MonoThreadInfo *info, gpointer user_data)
2648 InterruptData *data = (InterruptData *)user_data;
2651 data->valid_info = TRUE;
2652 ji = mono_jit_info_table_find_internal (
2653 (MonoDomain *)mono_thread_info_get_suspend_state (info)->unwind_data [MONO_UNWIND_DATA_DOMAIN],
2654 (char *)MONO_CONTEXT_GET_IP (&mono_thread_info_get_suspend_state (info)->ctx),
2658 /* This is signal safe */
2659 thread_interrupt (data->tls, info, ji);
2660 return MonoResumeThread;
2666 * Notify a thread that it needs to suspend.
2669 notify_thread (gpointer key, gpointer value, gpointer user_data)
2671 MonoInternalThread *thread = (MonoInternalThread *)key;
2672 DebuggerTlsData *tls = (DebuggerTlsData *)value;
2673 MonoNativeThreadId tid = MONO_UINT_TO_NATIVE_THREAD_ID (thread->tid);
2675 if (mono_native_thread_id_equals (mono_native_thread_id_get (), tid) || tls->terminated)
2678 DEBUG_PRINTF (1, "[%p] Interrupting %p...\n", (gpointer) (gsize) mono_native_thread_id_get (), (gpointer)tid);
2680 /* This is _not_ equivalent to ves_icall_System_Threading_Thread_Abort () */
2681 InterruptData interrupt_data = { 0 };
2682 interrupt_data.tls = tls;
2684 mono_thread_info_safe_suspend_and_run ((MonoNativeThreadId)(gpointer)(gsize)thread->tid, FALSE, debugger_interrupt_critical, &interrupt_data);
2685 if (!interrupt_data.valid_info) {
2686 DEBUG_PRINTF (1, "[%p] mono_thread_info_suspend_sync () failed for %p...\n", (gpointer) (gsize) mono_native_thread_id_get (), (gpointer)tid);
2688 * Attached thread which died without detaching.
2690 tls->terminated = TRUE;
2695 process_suspend (DebuggerTlsData *tls, MonoContext *ctx)
2697 guint8 *ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
2701 if (mono_loader_lock_is_owned_by_self ()) {
2703 * Shortcut for the check in suspend_current (). This speeds up processing
2704 * when executing long running code inside the loader lock, i.e. assembly load
2710 if (is_debugger_thread ())
2713 /* Prevent races with mono_debugger_agent_thread_interrupt () */
2714 if (suspend_count - tls->resume_count > 0)
2715 tls->suspending = TRUE;
2717 DEBUG_PRINTF (1, "[%p] Received single step event for suspending.\n", (gpointer) (gsize) mono_native_thread_id_get ());
2719 if (suspend_count - tls->resume_count == 0) {
2721 * We are executing a single threaded invoke but the single step for
2722 * suspending is still active.
2723 * FIXME: This slows down single threaded invokes.
2725 DEBUG_PRINTF (1, "[%p] Ignored during single threaded invoke.\n", (gpointer) (gsize) mono_native_thread_id_get ());
2729 ji = mini_jit_info_table_find (mono_domain_get (), (char*)ip, NULL);
2731 /* Can't suspend in these methods */
2732 method = jinfo_get_method (ji);
2733 if (method->klass == mono_defaults.string_class && (!strcmp (method->name, "memset") || strstr (method->name, "memcpy")))
2736 save_thread_context (ctx);
2744 * Increase the suspend count of the VM. While the suspend count is greater
2745 * than 0, runtime threads are suspended at certain points during execution.
2750 mono_loader_lock ();
2752 mono_coop_mutex_lock (&suspend_mutex);
2756 DEBUG_PRINTF (1, "[%p] Suspending vm...\n", (gpointer) (gsize) mono_native_thread_id_get ());
2758 if (suspend_count == 1) {
2759 // FIXME: Is it safe to call this inside the lock ?
2760 start_single_stepping ();
2761 mono_g_hash_table_foreach (thread_to_tls, notify_thread, NULL);
2764 mono_coop_mutex_unlock (&suspend_mutex);
2766 if (suspend_count == 1)
2768 * Suspend creation of new threadpool threads, since they cannot run
2770 mono_threadpool_ms_suspend ();
2772 mono_loader_unlock ();
2778 * Decrease the suspend count of the VM. If the count reaches 0, runtime threads
2786 g_assert (is_debugger_thread ());
2788 mono_loader_lock ();
2790 mono_coop_mutex_lock (&suspend_mutex);
2792 g_assert (suspend_count > 0);
2795 DEBUG_PRINTF (1, "[%p] Resuming vm, suspend count=%d...\n", (gpointer) (gsize) mono_native_thread_id_get (), suspend_count);
2797 if (suspend_count == 0) {
2798 // FIXME: Is it safe to call this inside the lock ?
2799 stop_single_stepping ();
2800 mono_g_hash_table_foreach (thread_to_tls, reset_native_thread_suspend_state, NULL);
2803 /* Signal this even when suspend_count > 0, since some threads might have resume_count > 0 */
2804 err = mono_coop_cond_broadcast (&suspend_cond);
2805 g_assert (err == 0);
2807 mono_coop_mutex_unlock (&suspend_mutex);
2808 //g_assert (err == 0);
2810 if (suspend_count == 0)
2811 mono_threadpool_ms_resume ();
2813 mono_loader_unlock ();
2819 * Resume just one thread.
2822 resume_thread (MonoInternalThread *thread)
2825 DebuggerTlsData *tls;
2827 g_assert (is_debugger_thread ());
2829 mono_loader_lock ();
2831 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
2834 mono_coop_mutex_lock (&suspend_mutex);
2836 g_assert (suspend_count > 0);
2838 DEBUG_PRINTF (1, "[sdb] Resuming thread %p...\n", (gpointer)(gssize)thread->tid);
2840 tls->resume_count += suspend_count;
2843 * Signal suspend_count without decreasing suspend_count, the threads will wake up
2844 * but only the one whose resume_count field is > 0 will be resumed.
2846 err = mono_coop_cond_broadcast (&suspend_cond);
2847 g_assert (err == 0);
2849 mono_coop_mutex_unlock (&suspend_mutex);
2850 //g_assert (err == 0);
2852 mono_loader_unlock ();
2856 free_frames (StackFrame **frames, int nframes)
2860 for (i = 0; i < nframes; ++i) {
2861 if (frames [i]->jit)
2862 mono_debug_free_method_jit_info (frames [i]->jit);
2863 g_free (frames [i]);
2869 invalidate_frames (DebuggerTlsData *tls)
2872 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
2875 free_frames (tls->frames, tls->frame_count);
2876 tls->frame_count = 0;
2879 free_frames (tls->restore_frames, tls->restore_frame_count);
2880 tls->restore_frame_count = 0;
2881 tls->restore_frames = NULL;
2887 * Suspend the current thread until the runtime is resumed. If the thread has a
2888 * pending invoke, then the invoke is executed before this function returns.
2891 suspend_current (void)
2893 DebuggerTlsData *tls;
2896 g_assert (!is_debugger_thread ());
2898 if (mono_loader_lock_is_owned_by_self ()) {
2900 * If we own the loader mutex, can't suspend until we release it, since the
2901 * whole runtime can deadlock otherwise.
2906 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
2909 mono_coop_mutex_lock (&suspend_mutex);
2911 tls->suspending = FALSE;
2912 tls->really_suspended = TRUE;
2914 if (!tls->suspended) {
2915 tls->suspended = TRUE;
2916 mono_coop_sem_post (&suspend_sem);
2919 DEBUG_PRINTF (1, "[%p] Suspended.\n", (gpointer) (gsize) mono_native_thread_id_get ());
2921 while (suspend_count - tls->resume_count > 0) {
2922 err = mono_coop_cond_wait (&suspend_cond, &suspend_mutex);
2923 g_assert (err == 0);
2926 tls->suspended = FALSE;
2927 tls->really_suspended = FALSE;
2929 threads_suspend_count --;
2931 mono_coop_mutex_unlock (&suspend_mutex);
2933 DEBUG_PRINTF (1, "[%p] Resumed.\n", (gpointer) (gsize) mono_native_thread_id_get ());
2935 if (tls->pending_invoke) {
2936 /* Save the original context */
2937 tls->pending_invoke->has_ctx = TRUE;
2938 tls->pending_invoke->ctx = tls->context.ctx;
2943 /* The frame info becomes invalid after a resume */
2944 tls->context.valid = FALSE;
2945 tls->async_state.valid = FALSE;
2946 invalidate_frames (tls);
2950 count_thread (gpointer key, gpointer value, gpointer user_data)
2952 DebuggerTlsData *tls = (DebuggerTlsData *)value;
2954 if (!tls->suspended && !tls->terminated)
2955 *(int*)user_data = *(int*)user_data + 1;
2959 count_threads_to_wait_for (void)
2963 mono_loader_lock ();
2964 mono_g_hash_table_foreach (thread_to_tls, count_thread, &count);
2965 mono_loader_unlock ();
2973 * Wait until the runtime is completely suspended.
2976 wait_for_suspend (void)
2978 int nthreads, nwait, err;
2979 gboolean waited = FALSE;
2981 // FIXME: Threads starting/stopping ?
2982 mono_loader_lock ();
2983 nthreads = mono_g_hash_table_size (thread_to_tls);
2984 mono_loader_unlock ();
2987 nwait = count_threads_to_wait_for ();
2989 DEBUG_PRINTF (1, "Waiting for %d(%d) threads to suspend...\n", nwait, nthreads);
2990 err = mono_coop_sem_wait (&suspend_sem, MONO_SEM_FLAGS_NONE);
2991 g_assert (err == 0);
2999 DEBUG_PRINTF (1, "%d threads suspended.\n", nthreads);
3005 * Return whenever the runtime is suspended.
3010 return count_threads_to_wait_for () == 0;
3014 no_seq_points_found (MonoMethod *method, int offset)
3017 * This can happen in full-aot mode with assemblies AOTed without the 'soft-debug' option to save space.
3019 printf ("Unable to find seq points for method '%s', offset 0x%x.\n", mono_method_full_name (method, TRUE), offset);
3023 DebuggerTlsData *tls;
3025 } ComputeFramesUserData;
3028 process_frame (StackFrameInfo *info, MonoContext *ctx, gpointer user_data)
3030 ComputeFramesUserData *ud = (ComputeFramesUserData *)user_data;
3032 MonoMethod *method, *actual_method, *api_method;
3036 if (info->type != FRAME_TYPE_MANAGED) {
3037 if (info->type == FRAME_TYPE_DEBUGGER_INVOKE) {
3038 /* Mark the last frame as an invoke frame */
3040 ((StackFrame*)g_slist_last (ud->frames)->data)->flags |= FRAME_FLAG_DEBUGGER_INVOKE;
3046 method = jinfo_get_method (info->ji);
3048 method = info->method;
3049 actual_method = info->actual_method;
3050 api_method = method;
3055 if (!method || (method->wrapper_type && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD && method->wrapper_type != MONO_WRAPPER_MANAGED_TO_NATIVE))
3058 if (info->il_offset == -1) {
3059 /* mono_debug_il_offset_from_address () doesn't seem to be precise enough (#2092) */
3060 if (ud->frames == NULL) {
3061 if (mono_find_prev_seq_point_for_native_offset (info->domain, method, info->native_offset, NULL, &sp))
3062 info->il_offset = sp.il_offset;
3064 if (info->il_offset == -1)
3065 info->il_offset = mono_debug_il_offset_from_address (method, info->domain, info->native_offset);
3068 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);
3070 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
3071 if (!CHECK_PROTOCOL_VERSION (2, 17))
3072 /* Older clients can't handle this flag */
3074 api_method = mono_marshal_method_from_wrapper (method);
3077 actual_method = api_method;
3078 flags |= FRAME_FLAG_NATIVE_TRANSITION;
3081 frame = g_new0 (StackFrame, 1);
3082 frame->method = method;
3083 frame->actual_method = actual_method;
3084 frame->api_method = api_method;
3085 frame->il_offset = info->il_offset;
3086 frame->native_offset = info->native_offset;
3087 frame->flags = flags;
3088 frame->ji = info->ji;
3089 if (info->reg_locations)
3090 memcpy (frame->reg_locations, info->reg_locations, MONO_MAX_IREGS * sizeof (mgreg_t*));
3093 frame->has_ctx = TRUE;
3095 frame->domain = info->domain;
3097 ud->frames = g_slist_append (ud->frames, frame);
3103 process_filter_frame (StackFrameInfo *info, MonoContext *ctx, gpointer user_data)
3105 ComputeFramesUserData *ud = (ComputeFramesUserData *)user_data;
3108 * 'tls->filter_ctx' is the location of the throw site.
3110 * mono_walk_stack() will never actually hit the throw site, but unwind
3111 * directly from the filter to the call site; we abort stack unwinding here
3112 * once this happens and resume from the throw site.
3115 if (MONO_CONTEXT_GET_SP (ctx) >= MONO_CONTEXT_GET_SP (&ud->tls->filter_state.ctx))
3118 return process_frame (info, ctx, user_data);
3122 * Return a malloc-ed list of StackFrame structures.
3125 compute_frame_info_from (MonoInternalThread *thread, DebuggerTlsData *tls, MonoThreadUnwindState *state, int *out_nframes)
3127 ComputeFramesUserData user_data;
3128 MonoUnwindOptions opts = (MonoUnwindOptions)(MONO_UNWIND_DEFAULT | MONO_UNWIND_REG_LOCATIONS);
3133 user_data.tls = tls;
3134 user_data.frames = NULL;
3136 mono_walk_stack_with_state (process_frame, state, opts, &user_data);
3138 nframes = g_slist_length (user_data.frames);
3139 res = g_new0 (StackFrame*, nframes);
3140 l = user_data.frames;
3141 for (i = 0; i < nframes; ++i) {
3142 res [i] = (StackFrame *)l->data;
3145 *out_nframes = nframes;
3151 compute_frame_info (MonoInternalThread *thread, DebuggerTlsData *tls)
3153 ComputeFramesUserData user_data;
3155 int i, findex, new_frame_count;
3156 StackFrame **new_frames, *f;
3157 MonoUnwindOptions opts = (MonoUnwindOptions)(MONO_UNWIND_DEFAULT | MONO_UNWIND_REG_LOCATIONS);
3159 // FIXME: Locking on tls
3160 if (tls->frames && tls->frames_up_to_date)
3163 DEBUG_PRINTF (1, "Frames for %p(tid=%lx):\n", thread, (glong)thread->tid);
3165 user_data.tls = tls;
3166 user_data.frames = NULL;
3167 if (tls->terminated) {
3168 tls->frame_count = 0;
3170 } if (!tls->really_suspended && tls->async_state.valid) {
3171 /* Have to use the state saved by the signal handler */
3172 process_frame (&tls->async_last_frame, NULL, &user_data);
3173 mono_walk_stack_with_state (process_frame, &tls->async_state, opts, &user_data);
3174 } else if (tls->filter_state.valid) {
3176 * We are inside an exception filter.
3178 * First we add all the frames from inside the filter; 'tls->ctx' has the current context.
3180 if (tls->context.valid)
3181 mono_walk_stack_with_state (process_filter_frame, &tls->context, opts, &user_data);
3183 * After that, we resume unwinding from the location where the exception has been thrown.
3185 mono_walk_stack_with_state (process_frame, &tls->filter_state, opts, &user_data);
3186 } else if (tls->context.valid) {
3187 mono_walk_stack_with_state (process_frame, &tls->context, opts, &user_data);
3190 tls->frame_count = 0;
3194 new_frame_count = g_slist_length (user_data.frames);
3195 new_frames = g_new0 (StackFrame*, new_frame_count);
3197 for (tmp = user_data.frames; tmp; tmp = tmp->next) {
3198 f = (StackFrame *)tmp->data;
3201 * Reuse the id for already existing stack frames, so invokes don't invalidate
3202 * the still valid stack frames.
3204 for (i = 0; i < tls->frame_count; ++i) {
3205 if (MONO_CONTEXT_GET_SP (&tls->frames [i]->ctx) == MONO_CONTEXT_GET_SP (&f->ctx)) {
3206 f->id = tls->frames [i]->id;
3211 if (i >= tls->frame_count)
3212 f->id = InterlockedIncrement (&frame_id);
3214 new_frames [findex ++] = f;
3217 g_slist_free (user_data.frames);
3219 invalidate_frames (tls);
3221 tls->frames = new_frames;
3222 tls->frame_count = new_frame_count;
3223 tls->frames_up_to_date = TRUE;
3227 * GHFunc to emit an appdomain creation event
3228 * @param key Don't care
3229 * @param value A loaded appdomain
3230 * @param user_data Don't care
3233 emit_appdomain_load (gpointer key, gpointer value, gpointer user_data)
3235 process_profiler_event (EVENT_KIND_APPDOMAIN_CREATE, value);
3236 g_hash_table_foreach (get_agent_domain_info ((MonoDomain *)value)->loaded_classes, emit_type_load, NULL);
3240 * GHFunc to emit a thread start event
3241 * @param key A thread id
3242 * @param value A thread object
3243 * @param user_data Don't care
3246 emit_thread_start (gpointer key, gpointer value, gpointer user_data)
3248 if (!mono_native_thread_id_equals (MONO_UINT_TO_NATIVE_THREAD_ID (GPOINTER_TO_UINT (key)), debugger_thread_id))
3249 process_profiler_event (EVENT_KIND_THREAD_START, value);
3253 * GFunc to emit an assembly load event
3254 * @param value A loaded assembly
3255 * @param user_data Don't care
3258 emit_assembly_load (gpointer value, gpointer user_data)
3260 process_profiler_event (EVENT_KIND_ASSEMBLY_LOAD, value);
3264 * GFunc to emit a type load event
3265 * @param value A loaded type
3266 * @param user_data Don't care
3269 emit_type_load (gpointer key, gpointer value, gpointer user_data)
3271 process_profiler_event (EVENT_KIND_TYPE_LOAD, value);
3275 strdup_tolower (char *s)
3280 for (p = s2; *p; ++p)
3286 * Same as g_path_get_basename () but handles windows paths as well,
3287 * which can occur in .mdb files created by pdb2mdb.
3290 dbg_path_get_basename (const char *filename)
3294 if (!filename || strchr (filename, '/') || !strchr (filename, '\\'))
3295 return g_path_get_basename (filename);
3299 /* No separator -> filename */
3300 r = strrchr (filename, '\\');
3302 return g_strdup (filename);
3304 /* Trailing slash, remove component */
3306 char *copy = g_strdup (filename);
3307 copy [r-filename] = 0;
3308 r = strrchr (copy, '\\');
3312 return g_strdup ("/");
3314 r = g_strdup (&r[1]);
3319 return g_strdup (&r[1]);
3323 init_jit_info_dbg_attrs (MonoJitInfo *ji)
3325 static MonoClass *hidden_klass, *step_through_klass, *non_user_klass;
3326 MonoCustomAttrInfo *ainfo;
3328 if (ji->dbg_attrs_inited)
3332 hidden_klass = mono_class_load_from_name (mono_defaults.corlib, "System.Diagnostics", "DebuggerHiddenAttribute");
3334 if (!step_through_klass)
3335 step_through_klass = mono_class_load_from_name (mono_defaults.corlib, "System.Diagnostics", "DebuggerStepThroughAttribute");
3337 if (!non_user_klass)
3338 non_user_klass = mono_class_load_from_name (mono_defaults.corlib, "System.Diagnostics", "DebuggerNonUserCodeAttribute");
3340 ainfo = mono_custom_attrs_from_method (jinfo_get_method (ji));
3342 if (mono_custom_attrs_has_attr (ainfo, hidden_klass))
3343 ji->dbg_hidden = TRUE;
3344 if (mono_custom_attrs_has_attr (ainfo, step_through_klass))
3345 ji->dbg_step_through = TRUE;
3346 if (mono_custom_attrs_has_attr (ainfo, non_user_klass))
3347 ji->dbg_non_user_code = TRUE;
3348 mono_custom_attrs_free (ainfo);
3351 ainfo = mono_custom_attrs_from_class (jinfo_get_method (ji)->klass);
3353 if (mono_custom_attrs_has_attr (ainfo, step_through_klass))
3354 ji->dbg_step_through = TRUE;
3355 if (mono_custom_attrs_has_attr (ainfo, non_user_klass))
3356 ji->dbg_non_user_code = TRUE;
3357 mono_custom_attrs_free (ainfo);
3360 mono_memory_barrier ();
3361 ji->dbg_attrs_inited = TRUE;
3369 * create_event_list:
3371 * Return a list of event request ids matching EVENT, starting from REQS, which
3372 * can be NULL to include all event requests. Set SUSPEND_POLICY to the suspend
3374 * We return request ids, instead of requests, to simplify threading, since
3375 * requests could be deleted anytime when the loader lock is not held.
3376 * LOCKING: Assumes the loader lock is held.
3379 create_event_list (EventKind event, GPtrArray *reqs, MonoJitInfo *ji, EventInfo *ei, int *suspend_policy)
3382 GSList *events = NULL;
3384 *suspend_policy = SUSPEND_POLICY_NONE;
3387 reqs = event_requests;
3392 for (i = 0; i < reqs->len; ++i) {
3393 EventRequest *req = (EventRequest *)g_ptr_array_index (reqs, i);
3394 if (req->event_kind == event) {
3395 gboolean filtered = FALSE;
3398 for (j = 0; j < req->nmodifiers; ++j) {
3399 Modifier *mod = &req->modifiers [j];
3401 if (mod->kind == MOD_KIND_COUNT) {
3403 if (mod->data.count > 0) {
3404 if (mod->data.count > 0) {
3406 if (mod->data.count == 0)
3410 } else if (mod->kind == MOD_KIND_THREAD_ONLY) {
3411 if (mod->data.thread != mono_thread_internal_current ())
3413 } else if (mod->kind == MOD_KIND_EXCEPTION_ONLY && ei) {
3414 if (mod->data.exc_class && mod->subclasses && !mono_class_is_assignable_from (mod->data.exc_class, ei->exc->vtable->klass))
3416 if (mod->data.exc_class && !mod->subclasses && mod->data.exc_class != ei->exc->vtable->klass)
3418 if (ei->caught && !mod->caught)
3420 if (!ei->caught && !mod->uncaught)
3422 } else if (mod->kind == MOD_KIND_ASSEMBLY_ONLY && ji) {
3424 gboolean found = FALSE;
3425 MonoAssembly **assemblies = mod->data.assemblies;
3428 for (k = 0; assemblies [k]; ++k)
3429 if (assemblies [k] == jinfo_get_method (ji)->klass->image->assembly)
3434 } else if (mod->kind == MOD_KIND_SOURCE_FILE_ONLY && ei && ei->klass) {
3435 gpointer iter = NULL;
3437 MonoDebugSourceInfo *sinfo;
3438 char *source_file, *s;
3439 gboolean found = FALSE;
3441 GPtrArray *source_file_list;
3443 while ((method = mono_class_get_methods (ei->klass, &iter))) {
3444 MonoDebugMethodInfo *minfo = mono_debug_lookup_method (method);
3447 mono_debug_get_seq_points (minfo, &source_file, &source_file_list, NULL, NULL, NULL);
3448 for (i = 0; i < source_file_list->len; ++i) {
3449 sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, i);
3451 * Do a case-insesitive match by converting the file name to
3454 s = strdup_tolower (sinfo->source_file);
3455 if (g_hash_table_lookup (mod->data.source_files, s))
3458 char *s2 = dbg_path_get_basename (sinfo->source_file);
3459 char *s3 = strdup_tolower (s2);
3461 if (g_hash_table_lookup (mod->data.source_files, s3))
3468 g_ptr_array_free (source_file_list, TRUE);
3473 } else if (mod->kind == MOD_KIND_TYPE_NAME_ONLY && ei && ei->klass) {
3476 s = mono_type_full_name (&ei->klass->byval_arg);
3477 if (!g_hash_table_lookup (mod->data.type_names, s))
3480 } else if (mod->kind == MOD_KIND_STEP) {
3481 if ((mod->data.filter & STEP_FILTER_STATIC_CTOR) && ji &&
3482 (jinfo_get_method (ji)->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
3483 !strcmp (jinfo_get_method (ji)->name, ".cctor") &&
3484 (jinfo_get_method (ji) != ((SingleStepReq*)req->info)->start_method))
3486 if ((mod->data.filter & STEP_FILTER_DEBUGGER_HIDDEN) && ji) {
3487 init_jit_info_dbg_attrs (ji);
3491 if ((mod->data.filter & STEP_FILTER_DEBUGGER_STEP_THROUGH) && ji) {
3492 init_jit_info_dbg_attrs (ji);
3493 if (ji->dbg_step_through)
3496 if ((mod->data.filter & STEP_FILTER_DEBUGGER_NON_USER_CODE) && ji) {
3497 init_jit_info_dbg_attrs (ji);
3498 if (ji->dbg_non_user_code)
3505 *suspend_policy = MAX (*suspend_policy, req->suspend_policy);
3506 events = g_slist_append (events, GINT_TO_POINTER (req->id));
3511 /* Send a VM START/DEATH event by default */
3512 if (event == EVENT_KIND_VM_START)
3513 events = g_slist_append (events, GINT_TO_POINTER (0));
3514 if (event == EVENT_KIND_VM_DEATH)
3515 events = g_slist_append (events, GINT_TO_POINTER (0));
3520 static G_GNUC_UNUSED const char*
3521 event_to_string (EventKind event)
3524 case EVENT_KIND_VM_START: return "VM_START";
3525 case EVENT_KIND_VM_DEATH: return "VM_DEATH";
3526 case EVENT_KIND_THREAD_START: return "THREAD_START";
3527 case EVENT_KIND_THREAD_DEATH: return "THREAD_DEATH";
3528 case EVENT_KIND_APPDOMAIN_CREATE: return "APPDOMAIN_CREATE";
3529 case EVENT_KIND_APPDOMAIN_UNLOAD: return "APPDOMAIN_UNLOAD";
3530 case EVENT_KIND_METHOD_ENTRY: return "METHOD_ENTRY";
3531 case EVENT_KIND_METHOD_EXIT: return "METHOD_EXIT";
3532 case EVENT_KIND_ASSEMBLY_LOAD: return "ASSEMBLY_LOAD";
3533 case EVENT_KIND_ASSEMBLY_UNLOAD: return "ASSEMBLY_UNLOAD";
3534 case EVENT_KIND_BREAKPOINT: return "BREAKPOINT";
3535 case EVENT_KIND_STEP: return "STEP";
3536 case EVENT_KIND_TYPE_LOAD: return "TYPE_LOAD";
3537 case EVENT_KIND_EXCEPTION: return "EXCEPTION";
3538 case EVENT_KIND_KEEPALIVE: return "KEEPALIVE";
3539 case EVENT_KIND_USER_BREAK: return "USER_BREAK";
3540 case EVENT_KIND_USER_LOG: return "USER_LOG";
3542 g_assert_not_reached ();
3550 * Send an event to the client, suspending the vm if needed.
3551 * LOCKING: Since this can suspend the calling thread, no locks should be held
3553 * The EVENTS list is freed by this function.
3556 process_event (EventKind event, gpointer arg, gint32 il_offset, MonoContext *ctx, GSList *events, int suspend_policy)
3560 MonoDomain *domain = mono_domain_get ();
3561 MonoThread *thread = NULL;
3562 MonoObject *keepalive_obj = NULL;
3563 gboolean send_success = FALSE;
3568 DEBUG_PRINTF (2, "Debugger agent not initialized yet: dropping %s\n", event_to_string (event));
3572 if (!vm_start_event_sent && event != EVENT_KIND_VM_START) {
3573 // FIXME: We miss those events
3574 DEBUG_PRINTF (2, "VM start event not sent yet: dropping %s\n", event_to_string (event));
3578 if (vm_death_event_sent) {
3579 DEBUG_PRINTF (2, "VM death event has been sent: dropping %s\n", event_to_string (event));
3583 if (mono_runtime_is_shutting_down () && event != EVENT_KIND_VM_DEATH) {
3584 DEBUG_PRINTF (2, "Mono runtime is shutting down: dropping %s\n", event_to_string (event));
3589 DEBUG_PRINTF (2, "Debugger client is not connected: dropping %s\n", event_to_string (event));
3593 if (event == EVENT_KIND_KEEPALIVE)
3594 suspend_policy = SUSPEND_POLICY_NONE;
3599 if (agent_config.defer) {
3600 /* Make sure the thread id is always set when doing deferred debugging */
3601 if (is_debugger_thread ()) {
3602 /* Don't suspend on events from the debugger thread */
3603 suspend_policy = SUSPEND_POLICY_NONE;
3604 thread = mono_thread_get_main ();
3606 else thread = mono_thread_current ();
3608 if (is_debugger_thread () && event != EVENT_KIND_VM_DEATH)
3609 // FIXME: Send these with a NULL thread, don't suspend the current thread
3614 nevents = g_slist_length (events);
3615 buffer_init (&buf, 128);
3616 buffer_add_byte (&buf, suspend_policy);
3617 buffer_add_int (&buf, nevents);
3619 for (l = events; l; l = l->next) {
3620 buffer_add_byte (&buf, event); // event kind
3621 buffer_add_int (&buf, GPOINTER_TO_INT (l->data)); // request id
3626 thread = mono_thread_current ();
3628 if (event == EVENT_KIND_VM_START && arg != NULL)
3629 thread = (MonoThread *)arg;
3631 buffer_add_objid (&buf, (MonoObject*)thread); // thread
3634 case EVENT_KIND_THREAD_START:
3635 case EVENT_KIND_THREAD_DEATH:
3637 case EVENT_KIND_APPDOMAIN_CREATE:
3638 case EVENT_KIND_APPDOMAIN_UNLOAD:
3639 buffer_add_domainid (&buf, (MonoDomain *)arg);
3641 case EVENT_KIND_METHOD_ENTRY:
3642 case EVENT_KIND_METHOD_EXIT:
3643 buffer_add_methodid (&buf, domain, (MonoMethod *)arg);
3645 case EVENT_KIND_ASSEMBLY_LOAD:
3646 buffer_add_assemblyid (&buf, domain, (MonoAssembly *)arg);
3648 case EVENT_KIND_ASSEMBLY_UNLOAD: {
3649 DebuggerTlsData *tls;
3651 /* The domain the assembly belonged to is not equal to the current domain */
3652 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3654 g_assert (tls->domain_unloading);
3656 buffer_add_assemblyid (&buf, tls->domain_unloading, (MonoAssembly *)arg);
3659 case EVENT_KIND_TYPE_LOAD:
3660 buffer_add_typeid (&buf, domain, (MonoClass *)arg);
3662 case EVENT_KIND_BREAKPOINT:
3663 case EVENT_KIND_STEP:
3664 buffer_add_methodid (&buf, domain, (MonoMethod *)arg);
3665 buffer_add_long (&buf, il_offset);
3667 case EVENT_KIND_VM_START:
3668 buffer_add_domainid (&buf, mono_get_root_domain ());
3670 case EVENT_KIND_VM_DEATH:
3671 if (CHECK_PROTOCOL_VERSION (2, 27))
3672 buffer_add_int (&buf, mono_environment_exitcode_get ());
3674 case EVENT_KIND_EXCEPTION: {
3675 EventInfo *ei = (EventInfo *)arg;
3676 buffer_add_objid (&buf, ei->exc);
3678 * We are not yet suspending, so get_objref () will not keep this object alive. So we need to do it
3679 * later after the suspension. (#12494).
3681 keepalive_obj = ei->exc;
3684 case EVENT_KIND_USER_BREAK:
3686 case EVENT_KIND_USER_LOG: {
3687 EventInfo *ei = (EventInfo *)arg;
3688 buffer_add_int (&buf, ei->level);
3689 buffer_add_string (&buf, ei->category ? ei->category : "");
3690 buffer_add_string (&buf, ei->message ? ei->message : "");
3693 case EVENT_KIND_KEEPALIVE:
3694 suspend_policy = SUSPEND_POLICY_NONE;
3697 g_assert_not_reached ();
3701 if (event == EVENT_KIND_VM_START) {
3702 suspend_policy = agent_config.suspend ? SUSPEND_POLICY_ALL : SUSPEND_POLICY_NONE;
3703 if (!agent_config.defer)
3704 start_debugger_thread ();
3707 if (event == EVENT_KIND_VM_DEATH) {
3708 vm_death_event_sent = TRUE;
3709 suspend_policy = SUSPEND_POLICY_NONE;
3712 if (mono_runtime_is_shutting_down ())
3713 suspend_policy = SUSPEND_POLICY_NONE;
3715 if (suspend_policy != SUSPEND_POLICY_NONE) {
3717 * Save the thread context and start suspending before sending the packet,
3718 * since we could be receiving the resume request before send_packet ()
3721 save_thread_context (ctx);
3725 /* This will keep this object alive */
3726 get_objref (keepalive_obj);
3729 send_success = send_packet (CMD_SET_EVENT, CMD_COMPOSITE, &buf);
3733 g_slist_free (events);
3736 if (!send_success) {
3737 DEBUG_PRINTF (2, "Sending command %s failed.\n", event_to_string (event));
3741 if (event == EVENT_KIND_VM_START) {
3742 vm_start_event_sent = TRUE;
3745 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);
3747 switch (suspend_policy) {
3748 case SUSPEND_POLICY_NONE:
3750 case SUSPEND_POLICY_ALL:
3753 case SUSPEND_POLICY_EVENT_THREAD:
3757 g_assert_not_reached ();
3762 process_profiler_event (EventKind event, gpointer arg)
3766 EventInfo ei, *ei_arg = NULL;
3768 if (event == EVENT_KIND_TYPE_LOAD) {
3769 ei.klass = (MonoClass *)arg;
3773 mono_loader_lock ();
3774 events = create_event_list (event, NULL, NULL, ei_arg, &suspend_policy);
3775 mono_loader_unlock ();
3777 process_event (event, arg, 0, NULL, events, suspend_policy);
3781 runtime_initialized (MonoProfiler *prof)
3783 process_profiler_event (EVENT_KIND_VM_START, mono_thread_current ());
3784 if (agent_config.defer)
3785 start_debugger_thread ();
3789 runtime_shutdown (MonoProfiler *prof)
3791 process_profiler_event (EVENT_KIND_VM_DEATH, mono_thread_current ());
3793 mono_debugger_agent_cleanup ();
3797 thread_startup (MonoProfiler *prof, uintptr_t tid)
3799 MonoInternalThread *thread = mono_thread_internal_current ();
3800 MonoInternalThread *old_thread;
3801 DebuggerTlsData *tls;
3803 if (mono_native_thread_id_equals (MONO_UINT_TO_NATIVE_THREAD_ID (tid), debugger_thread_id))
3806 g_assert (mono_native_thread_id_equals (MONO_UINT_TO_NATIVE_THREAD_ID (tid), MONO_UINT_TO_NATIVE_THREAD_ID (thread->tid)));
3808 mono_loader_lock ();
3809 old_thread = (MonoInternalThread *)mono_g_hash_table_lookup (tid_to_thread, GUINT_TO_POINTER (tid));
3810 mono_loader_unlock ();
3812 if (thread == old_thread) {
3814 * For some reason, thread_startup () might be called for the same thread
3815 * multiple times (attach ?).
3817 DEBUG_PRINTF (1, "[%p] thread_start () called multiple times for %p, ignored.\n", GUINT_TO_POINTER (tid), GUINT_TO_POINTER (tid));
3821 * thread_end () might not be called for some threads, and the tid could
3824 DEBUG_PRINTF (1, "[%p] Removing stale data for tid %p.\n", GUINT_TO_POINTER (tid), GUINT_TO_POINTER (tid));
3825 mono_loader_lock ();
3826 mono_g_hash_table_remove (thread_to_tls, old_thread);
3827 mono_g_hash_table_remove (tid_to_thread, GUINT_TO_POINTER (tid));
3828 mono_g_hash_table_remove (tid_to_thread_obj, GUINT_TO_POINTER (tid));
3829 mono_loader_unlock ();
3833 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3835 // FIXME: Free this somewhere
3836 tls = g_new0 (DebuggerTlsData, 1);
3837 MONO_GC_REGISTER_ROOT_SINGLE (tls->thread, MONO_ROOT_SOURCE_DEBUGGER, "debugger thread reference");
3838 tls->thread = thread;
3839 mono_native_tls_set_value (debugger_tls_id, tls);
3841 DEBUG_PRINTF (1, "[%p] Thread started, obj=%p, tls=%p.\n", (gpointer)tid, thread, tls);
3843 mono_loader_lock ();
3844 mono_g_hash_table_insert (thread_to_tls, thread, tls);
3845 mono_g_hash_table_insert (tid_to_thread, (gpointer)tid, thread);
3846 mono_g_hash_table_insert (tid_to_thread_obj, GUINT_TO_POINTER (tid), mono_thread_current ());
3847 mono_loader_unlock ();
3849 process_profiler_event (EVENT_KIND_THREAD_START, thread);
3852 * suspend_vm () could have missed this thread, so wait for a resume.
3858 thread_end (MonoProfiler *prof, uintptr_t tid)
3860 MonoInternalThread *thread;
3861 DebuggerTlsData *tls = NULL;
3863 mono_loader_lock ();
3864 thread = (MonoInternalThread *)mono_g_hash_table_lookup (tid_to_thread, GUINT_TO_POINTER (tid));
3866 mono_g_hash_table_remove (tid_to_thread_obj, GUINT_TO_POINTER (tid));
3867 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
3869 /* FIXME: Maybe we need to free this instead, but some code can't handle that */
3870 tls->terminated = TRUE;
3871 /* Can't remove from tid_to_thread, as that would defeat the check in thread_start () */
3872 MONO_GC_UNREGISTER_ROOT (tls->thread);
3876 mono_loader_unlock ();
3878 /* We might be called for threads started before we registered the start callback */
3880 DEBUG_PRINTF (1, "[%p] Thread terminated, obj=%p, tls=%p.\n", (gpointer)tid, thread, tls);
3882 if (mono_native_thread_id_equals (mono_native_thread_id_get (), MONO_UINT_TO_NATIVE_THREAD_ID (tid))
3883 && !mono_native_tls_get_value (debugger_tls_id)
3886 * This can happen on darwin since we deregister threads using pthread dtors.
3887 * process_profiler_event () and the code it calls cannot handle a null TLS value.
3892 process_profiler_event (EVENT_KIND_THREAD_DEATH, thread);
3897 appdomain_load (MonoProfiler *prof, MonoDomain *domain, int result)
3899 mono_loader_lock ();
3900 g_hash_table_insert (domains, domain, domain);
3901 mono_loader_unlock ();
3903 process_profiler_event (EVENT_KIND_APPDOMAIN_CREATE, domain);
3907 appdomain_start_unload (MonoProfiler *prof, MonoDomain *domain)
3909 DebuggerTlsData *tls;
3911 /* This might be called during shutdown on the debugger thread from the CMD_VM_EXIT code */
3912 if (is_debugger_thread ())
3916 * Remember the currently unloading appdomain as it is needed to generate
3917 * proper ids for unloading assemblies.
3919 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3921 tls->domain_unloading = domain;
3925 appdomain_unload (MonoProfiler *prof, MonoDomain *domain)
3927 DebuggerTlsData *tls;
3929 if (is_debugger_thread ())
3932 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3934 tls->domain_unloading = NULL;
3936 clear_breakpoints_for_domain (domain);
3938 mono_loader_lock ();
3939 /* Invalidate each thread's frame stack */
3940 mono_g_hash_table_foreach (thread_to_tls, invalidate_each_thread, NULL);
3941 mono_loader_unlock ();
3943 process_profiler_event (EVENT_KIND_APPDOMAIN_UNLOAD, domain);
3947 * invalidate_each_thread:
3949 * A GHFunc to invalidate frames.
3950 * value must be a DebuggerTlsData*
3953 invalidate_each_thread (gpointer key, gpointer value, gpointer user_data)
3955 invalidate_frames ((DebuggerTlsData *)value);
3959 assembly_load (MonoProfiler *prof, MonoAssembly *assembly, int result)
3961 /* Sent later in jit_end () */
3963 g_ptr_array_add (pending_assembly_loads, assembly);
3968 assembly_unload (MonoProfiler *prof, MonoAssembly *assembly)
3970 if (is_debugger_thread ())
3973 process_profiler_event (EVENT_KIND_ASSEMBLY_UNLOAD, assembly);
3975 clear_event_requests_for_assembly (assembly);
3976 clear_types_for_assembly (assembly);
3980 send_type_load (MonoClass *klass)
3982 gboolean type_load = FALSE;
3983 MonoDomain *domain = mono_domain_get ();
3984 AgentDomainInfo *info = NULL;
3986 info = get_agent_domain_info (domain);
3988 mono_loader_lock ();
3990 if (!g_hash_table_lookup (info->loaded_classes, klass)) {
3992 g_hash_table_insert (info->loaded_classes, klass, klass);
3995 mono_loader_unlock ();
3998 emit_type_load (klass, klass, NULL);
4002 * Emit load events for all types currently loaded in the domain.
4003 * Takes the loader and domain locks.
4004 * user_data is unused.
4007 send_types_for_domain (MonoDomain *domain, void *user_data)
4009 AgentDomainInfo *info = NULL;
4011 info = get_agent_domain_info (domain);
4014 mono_loader_lock ();
4015 g_hash_table_foreach (info->loaded_classes, emit_type_load, NULL);
4016 mono_loader_unlock ();
4020 jit_end (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *jinfo, int result)
4023 * We emit type load events when the first method of the type is JITted,
4024 * since the class load profiler callbacks might be called with the
4025 * loader lock held. They could also occur in the debugger thread.
4026 * Same for assembly load events.
4029 MonoAssembly *assembly = NULL;
4031 // FIXME: Maybe store this in TLS so the thread of the event is correct ?
4033 if (pending_assembly_loads->len > 0) {
4034 assembly = (MonoAssembly *)g_ptr_array_index (pending_assembly_loads, 0);
4035 g_ptr_array_remove_index (pending_assembly_loads, 0);
4040 process_profiler_event (EVENT_KIND_ASSEMBLY_LOAD, assembly);
4046 send_type_load (method->klass);
4049 add_pending_breakpoints (method, jinfo);
4053 * BREAKPOINTS/SINGLE STEPPING
4057 * Contains information about an inserted breakpoint.
4060 long il_offset, native_offset;
4064 } BreakpointInstance;
4067 * Contains generic information about a breakpoint.
4071 * The method where the breakpoint is placed. Can be NULL in which case it
4072 * is inserted into every method. This is used to implement method entry/
4073 * exit events. Can be a generic method definition, in which case the
4074 * breakpoint is inserted into every instance.
4080 * A list of BreakpointInstance structures describing where the breakpoint
4081 * was inserted. There could be more than one because of
4082 * generics/appdomains/method entry/exit.
4084 GPtrArray *children;
4087 /* List of breakpoints */
4088 /* Protected by the loader lock */
4089 static GPtrArray *breakpoints;
4090 /* Maps breakpoint locations to the number of breakpoints at that location */
4091 static GHashTable *bp_locs;
4094 breakpoints_init (void)
4096 breakpoints = g_ptr_array_new ();
4097 bp_locs = g_hash_table_new (NULL, NULL);
4101 * insert_breakpoint:
4103 * Insert the breakpoint described by BP into the method described by
4107 insert_breakpoint (MonoSeqPointInfo *seq_points, MonoDomain *domain, MonoJitInfo *ji, MonoBreakpoint *bp, MonoError *error)
4110 BreakpointInstance *inst;
4111 SeqPointIterator it;
4112 gboolean it_has_sp = FALSE;
4115 mono_error_init (error);
4117 mono_seq_point_iterator_init (&it, seq_points);
4118 while (mono_seq_point_iterator_next (&it)) {
4119 if (it.seq_point.il_offset == bp->il_offset) {
4127 * The set of IL offsets with seq points doesn't completely match the
4128 * info returned by CMD_METHOD_GET_DEBUG_INFO (#407).
4130 mono_seq_point_iterator_init (&it, seq_points);
4131 while (mono_seq_point_iterator_next (&it)) {
4132 if (it.seq_point.il_offset != METHOD_ENTRY_IL_OFFSET &&
4133 it.seq_point.il_offset != METHOD_EXIT_IL_OFFSET &&
4134 it.seq_point.il_offset + 1 == bp->il_offset) {
4142 char *s = g_strdup_printf ("Unable to insert breakpoint at %s:%d", mono_method_full_name (jinfo_get_method (ji), TRUE), bp->il_offset);
4144 mono_seq_point_iterator_init (&it, seq_points);
4145 while (mono_seq_point_iterator_next (&it))
4146 DEBUG_PRINTF (1, "%d\n", it.seq_point.il_offset);
4149 mono_error_set_error (error, MONO_ERROR_GENERIC, "%s", s);
4150 g_warning ("%s", s);
4154 g_warning ("%s", s);
4160 inst = g_new0 (BreakpointInstance, 1);
4161 inst->il_offset = it.seq_point.il_offset;
4162 inst->native_offset = it.seq_point.native_offset;
4163 inst->ip = (guint8*)ji->code_start + it.seq_point.native_offset;
4165 inst->domain = domain;
4167 mono_loader_lock ();
4169 g_ptr_array_add (bp->children, inst);
4171 mono_loader_unlock ();
4174 count = GPOINTER_TO_INT (g_hash_table_lookup (bp_locs, inst->ip));
4175 g_hash_table_insert (bp_locs, inst->ip, GINT_TO_POINTER (count + 1));
4178 if (it.seq_point.native_offset == SEQ_POINT_NATIVE_OFFSET_DEAD_CODE) {
4179 DEBUG_PRINTF (1, "[dbg] Attempting to insert seq point at dead IL offset %d, ignoring.\n", (int)bp->il_offset);
4180 } else if (count == 0) {
4181 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
4182 mono_arch_set_breakpoint (ji, inst->ip);
4188 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);
4192 remove_breakpoint (BreakpointInstance *inst)
4194 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
4196 MonoJitInfo *ji = inst->ji;
4197 guint8 *ip = inst->ip;
4200 count = GPOINTER_TO_INT (g_hash_table_lookup (bp_locs, ip));
4201 g_hash_table_insert (bp_locs, ip, GINT_TO_POINTER (count - 1));
4204 g_assert (count > 0);
4206 if (count == 1 && inst->native_offset != SEQ_POINT_NATIVE_OFFSET_DEAD_CODE) {
4207 mono_arch_clear_breakpoint (ji, ip);
4208 DEBUG_PRINTF (1, "[dbg] Clear breakpoint at %s [%p].\n", mono_method_full_name (jinfo_get_method (ji), TRUE), ip);
4216 * This doesn't take any locks.
4218 static inline gboolean
4219 bp_matches_method (MonoBreakpoint *bp, MonoMethod *method)
4225 if (method == bp->method)
4227 if (method->is_inflated && ((MonoMethodInflated*)method)->declaring == bp->method)
4230 if (bp->method->is_inflated && method->is_inflated) {
4231 MonoMethodInflated *bpimethod = (MonoMethodInflated*)bp->method;
4232 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
4234 /* Open generic methods should match closed generic methods of the same class */
4235 if (bpimethod->declaring == imethod->declaring && bpimethod->context.class_inst == imethod->context.class_inst && bpimethod->context.method_inst && bpimethod->context.method_inst->is_open) {
4236 for (i = 0; i < bpimethod->context.method_inst->type_argc; ++i) {
4237 MonoType *t1 = bpimethod->context.method_inst->type_argv [i];
4239 /* FIXME: Handle !mvar */
4240 if (t1->type != MONO_TYPE_MVAR)
4251 * add_pending_breakpoints:
4253 * Insert pending breakpoints into the newly JITted method METHOD.
4256 add_pending_breakpoints (MonoMethod *method, MonoJitInfo *ji)
4259 MonoSeqPointInfo *seq_points;
4261 MonoMethod *jmethod;
4266 domain = mono_domain_get ();
4268 mono_loader_lock ();
4270 for (i = 0; i < breakpoints->len; ++i) {
4271 MonoBreakpoint *bp = (MonoBreakpoint *)g_ptr_array_index (breakpoints, i);
4272 gboolean found = FALSE;
4274 if (!bp_matches_method (bp, method))
4277 for (j = 0; j < bp->children->len; ++j) {
4278 BreakpointInstance *inst = (BreakpointInstance *)g_ptr_array_index (bp->children, j);
4285 MonoMethod *declaring = NULL;
4287 jmethod = jinfo_get_method (ji);
4288 if (jmethod->is_inflated)
4289 declaring = mono_method_get_declaring_generic_method (jmethod);
4291 mono_domain_lock (domain);
4292 seq_points = (MonoSeqPointInfo *)g_hash_table_lookup (domain_jit_info (domain)->seq_points, jmethod);
4293 if (!seq_points && declaring)
4294 seq_points = (MonoSeqPointInfo *)g_hash_table_lookup (domain_jit_info (domain)->seq_points, declaring);
4295 mono_domain_unlock (domain);
4297 /* Could be AOT code */
4299 g_assert (seq_points);
4301 insert_breakpoint (seq_points, domain, ji, bp, NULL);
4305 mono_loader_unlock ();
4309 set_bp_in_method (MonoDomain *domain, MonoMethod *method, MonoSeqPointInfo *seq_points, MonoBreakpoint *bp, MonoError *error)
4315 mono_error_init (error);
4317 code = mono_jit_find_compiled_method_with_jit_info (domain, method, &ji);
4319 /* Might be AOTed code */
4320 code = mono_aot_get_method (domain, method);
4322 ji = mono_jit_info_table_find (domain, (char *)code);
4327 insert_breakpoint (seq_points, domain, ji, bp, error);
4331 clear_breakpoint (MonoBreakpoint *bp);
4336 * Set a breakpoint at IL_OFFSET in METHOD.
4337 * METHOD can be NULL, in which case a breakpoint is placed in all methods.
4338 * METHOD can also be a generic method definition, in which case a breakpoint
4339 * is placed in all instances of the method.
4340 * If ERROR is non-NULL, then it is set and NULL is returnd if some breakpoints couldn't be
4343 static MonoBreakpoint*
4344 set_breakpoint (MonoMethod *method, long il_offset, EventRequest *req, MonoError *error)
4347 GHashTableIter iter, iter2;
4350 MonoSeqPointInfo *seq_points;
4352 GPtrArray *method_domains;
4353 GPtrArray *method_seq_points;
4357 mono_error_init (error);
4360 // - suspend/resume the vm to prevent code patching problems
4361 // - multiple breakpoints on the same location
4362 // - dynamic methods
4365 bp = g_new0 (MonoBreakpoint, 1);
4366 bp->method = method;
4367 bp->il_offset = il_offset;
4369 bp->children = g_ptr_array_new ();
4371 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);
4373 methods = g_ptr_array_new ();
4374 method_domains = g_ptr_array_new ();
4375 method_seq_points = g_ptr_array_new ();
4377 mono_loader_lock ();
4378 g_hash_table_iter_init (&iter, domains);
4379 while (g_hash_table_iter_next (&iter, (void**)&domain, NULL)) {
4380 mono_domain_lock (domain);
4381 g_hash_table_iter_init (&iter2, domain_jit_info (domain)->seq_points);
4382 while (g_hash_table_iter_next (&iter2, (void**)&m, (void**)&seq_points)) {
4383 if (bp_matches_method (bp, m)) {
4384 /* Save the info locally to simplify the code inside the domain lock */
4385 g_ptr_array_add (methods, m);
4386 g_ptr_array_add (method_domains, domain);
4387 g_ptr_array_add (method_seq_points, seq_points);
4390 mono_domain_unlock (domain);
4393 for (i = 0; i < methods->len; ++i) {
4394 m = (MonoMethod *)g_ptr_array_index (methods, i);
4395 domain = (MonoDomain *)g_ptr_array_index (method_domains, i);
4396 seq_points = (MonoSeqPointInfo *)g_ptr_array_index (method_seq_points, i);
4397 set_bp_in_method (domain, m, seq_points, bp, error);
4400 g_ptr_array_add (breakpoints, bp);
4401 mono_loader_unlock ();
4403 g_ptr_array_free (methods, TRUE);
4404 g_ptr_array_free (method_domains, TRUE);
4405 g_ptr_array_free (method_seq_points, TRUE);
4407 if (error && !mono_error_ok (error)) {
4408 clear_breakpoint (bp);
4416 clear_breakpoint (MonoBreakpoint *bp)
4420 // FIXME: locking, races
4421 for (i = 0; i < bp->children->len; ++i) {
4422 BreakpointInstance *inst = (BreakpointInstance *)g_ptr_array_index (bp->children, i);
4424 remove_breakpoint (inst);
4429 mono_loader_lock ();
4430 g_ptr_array_remove (breakpoints, bp);
4431 mono_loader_unlock ();
4433 g_ptr_array_free (bp->children, TRUE);
4438 breakpoints_cleanup (void)
4442 mono_loader_lock ();
4444 while (i < event_requests->len) {
4445 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
4447 if (req->event_kind == EVENT_KIND_BREAKPOINT) {
4448 clear_breakpoint ((MonoBreakpoint *)req->info);
4449 g_ptr_array_remove_index_fast (event_requests, i);
4456 for (i = 0; i < breakpoints->len; ++i)
4457 g_free (g_ptr_array_index (breakpoints, i));
4459 g_ptr_array_free (breakpoints, TRUE);
4460 g_hash_table_destroy (bp_locs);
4465 mono_loader_unlock ();
4469 * clear_breakpoints_for_domain:
4471 * Clear breakpoint instances which reference DOMAIN.
4474 clear_breakpoints_for_domain (MonoDomain *domain)
4478 /* This could be called after shutdown */
4482 mono_loader_lock ();
4483 for (i = 0; i < breakpoints->len; ++i) {
4484 MonoBreakpoint *bp = (MonoBreakpoint *)g_ptr_array_index (breakpoints, i);
4487 while (j < bp->children->len) {
4488 BreakpointInstance *inst = (BreakpointInstance *)g_ptr_array_index (bp->children, j);
4490 if (inst->domain == domain) {
4491 remove_breakpoint (inst);
4495 g_ptr_array_remove_index_fast (bp->children, j);
4501 mono_loader_unlock ();
4507 * Return FALSE if single stepping needs to continue.
4510 ss_update (SingleStepReq *req, MonoJitInfo *ji, SeqPoint *sp, DebuggerTlsData *tls, MonoContext *ctx)
4512 MonoDebugMethodInfo *minfo;
4513 MonoDebugSourceLocation *loc = NULL;
4514 gboolean hit = TRUE;
4517 if (req->depth == STEP_DEPTH_OVER && (sp->flags & MONO_SEQ_POINT_FLAG_NONEMPTY_STACK)) {
4519 * These seq points are inserted by the JIT after calls, step over needs to skip them.
4521 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);
4525 if (req->depth == STEP_DEPTH_OVER && hit) {
4526 if (!tls->context.valid)
4527 mono_thread_state_init_from_monoctx (&tls->context, ctx);
4528 compute_frame_info (tls->thread, tls);
4529 if (req->nframes && tls->frame_count && tls->frame_count > req->nframes) {
4530 /* Hit the breakpoint in a recursive call */
4531 DEBUG_PRINTF (1, "[%p] Breakpoint at lower frame while stepping over, continuing single stepping.\n", (gpointer) (gsize) mono_native_thread_id_get ());
4536 if (req->depth == STEP_DEPTH_INTO && req->size == STEP_SIZE_MIN && (sp->flags & MONO_SEQ_POINT_FLAG_NONEMPTY_STACK) && ss_req->start_method){
4537 method = jinfo_get_method (ji);
4538 if (!tls->context.valid)
4539 mono_thread_state_init_from_monoctx (&tls->context, ctx);
4540 compute_frame_info (tls->thread, tls);
4541 if (ss_req->start_method == method && req->nframes && tls->frame_count == req->nframes) {//Check also frame count(could be recursion)
4542 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);
4547 if (req->size != STEP_SIZE_LINE)
4550 /* Have to check whenever a different source line was reached */
4551 method = jinfo_get_method (ji);
4552 minfo = mono_debug_lookup_method (method);
4555 loc = mono_debug_method_lookup_location (minfo, sp->il_offset);
4558 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);
4559 ss_req->last_method = method;
4561 } else if (loc && method == ss_req->last_method && loc->row == ss_req->last_line) {
4562 DEBUG_PRINTF (1, "[%p] Same source line (%d), continuing single stepping.\n", (gpointer) (gsize) mono_native_thread_id_get (), loc->row);
4567 ss_req->last_method = method;
4568 ss_req->last_line = loc->row;
4569 mono_debug_free_source_location (loc);
4576 breakpoint_matches_assembly (MonoBreakpoint *bp, MonoAssembly *assembly)
4578 return bp->method && bp->method->klass->image->assembly == assembly;
4582 process_breakpoint_inner (DebuggerTlsData *tls, gboolean from_signal)
4586 int i, j, suspend_policy;
4587 guint32 native_offset;
4589 BreakpointInstance *inst;
4590 GPtrArray *bp_reqs, *ss_reqs_orig, *ss_reqs;
4591 GSList *bp_events = NULL, *ss_events = NULL, *enter_leave_events = NULL;
4592 EventKind kind = EVENT_KIND_BREAKPOINT;
4593 MonoContext *ctx = &tls->restore_state.ctx;
4595 MonoSeqPointInfo *info;
4599 // FIXME: Speed this up
4601 ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
4602 ji = mini_jit_info_table_find (mono_domain_get (), (char*)ip, NULL);
4603 g_assert (ji && !ji->is_trampoline);
4604 method = jinfo_get_method (ji);
4606 /* Compute the native offset of the breakpoint from the ip */
4607 native_offset = ip - (guint8*)ji->code_start;
4610 * Skip the instruction causing the breakpoint signal.
4613 mono_arch_skip_breakpoint (ctx, ji);
4615 if (method->wrapper_type || tls->disable_breakpoints)
4618 bp_reqs = g_ptr_array_new ();
4619 ss_reqs = g_ptr_array_new ();
4620 ss_reqs_orig = g_ptr_array_new ();
4622 mono_loader_lock ();
4625 * The ip points to the instruction causing the breakpoint event, which is after
4626 * the offset recorded in the seq point map, so find the prev seq point before ip.
4628 found_sp = mono_find_prev_seq_point_for_native_offset (mono_domain_get (), method, native_offset, &info, &sp);
4631 no_seq_points_found (method, native_offset);
4633 g_assert (found_sp);
4635 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);
4638 for (i = 0; i < breakpoints->len; ++i) {
4639 bp = (MonoBreakpoint *)g_ptr_array_index (breakpoints, i);
4644 for (j = 0; j < bp->children->len; ++j) {
4645 inst = (BreakpointInstance *)g_ptr_array_index (bp->children, j);
4646 if (inst->ji == ji && inst->il_offset == sp.il_offset && inst->native_offset == sp.native_offset) {
4647 if (bp->req->event_kind == EVENT_KIND_STEP) {
4648 g_ptr_array_add (ss_reqs_orig, bp->req);
4650 g_ptr_array_add (bp_reqs, bp->req);
4655 if (bp_reqs->len == 0 && ss_reqs_orig->len == 0) {
4656 /* Maybe a method entry/exit event */
4657 if (sp.il_offset == METHOD_ENTRY_IL_OFFSET)
4658 kind = EVENT_KIND_METHOD_ENTRY;
4659 else if (sp.il_offset == METHOD_EXIT_IL_OFFSET)
4660 kind = EVENT_KIND_METHOD_EXIT;
4663 /* Process single step requests */
4664 for (i = 0; i < ss_reqs_orig->len; ++i) {
4665 EventRequest *req = (EventRequest *)g_ptr_array_index (ss_reqs_orig, i);
4666 SingleStepReq *ss_req = (SingleStepReq *)req->info;
4669 if (mono_thread_internal_current () != ss_req->thread)
4672 hit = ss_update (ss_req, ji, &sp, tls, ctx);
4674 g_ptr_array_add (ss_reqs, req);
4676 /* Start single stepping again from the current sequence point */
4677 ss_start (ss_req, method, &sp, info, ctx, tls, FALSE, NULL, 0);
4680 if (ss_reqs->len > 0)
4681 ss_events = create_event_list (EVENT_KIND_STEP, ss_reqs, ji, NULL, &suspend_policy);
4682 if (bp_reqs->len > 0)
4683 bp_events = create_event_list (EVENT_KIND_BREAKPOINT, bp_reqs, ji, NULL, &suspend_policy);
4684 if (kind != EVENT_KIND_BREAKPOINT)
4685 enter_leave_events = create_event_list (kind, NULL, ji, NULL, &suspend_policy);
4687 mono_loader_unlock ();
4689 g_ptr_array_free (bp_reqs, TRUE);
4690 g_ptr_array_free (ss_reqs, TRUE);
4693 * FIXME: The first event will suspend, so the second will only be sent after the
4697 process_event (EVENT_KIND_STEP, method, 0, ctx, ss_events, suspend_policy);
4699 process_event (kind, method, 0, ctx, bp_events, suspend_policy);
4700 if (enter_leave_events)
4701 process_event (kind, method, 0, ctx, enter_leave_events, suspend_policy);
4704 /* Process a breakpoint/single step event after resuming from a signal handler */
4706 process_signal_event (void (*func) (DebuggerTlsData*, gboolean))
4708 DebuggerTlsData *tls;
4709 MonoThreadUnwindState orig_restore_state;
4712 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
4713 /* Have to save/restore the restore_ctx as we can be called recursively during invokes etc. */
4714 memcpy (&orig_restore_state, &tls->restore_state, sizeof (MonoThreadUnwindState));
4715 mono_thread_state_init_from_monoctx (&tls->restore_state, &tls->handler_ctx);
4719 /* This is called when resuming from a signal handler, so it shouldn't return */
4720 memcpy (&ctx, &tls->restore_state.ctx, sizeof (MonoContext));
4721 memcpy (&tls->restore_state, &orig_restore_state, sizeof (MonoThreadUnwindState));
4722 mono_restore_context (&ctx);
4723 g_assert_not_reached ();
4727 process_breakpoint (void)
4729 process_signal_event (process_breakpoint_inner);
4733 resume_from_signal_handler (void *sigctx, void *func)
4735 DebuggerTlsData *tls;
4738 /* Save the original context in TLS */
4739 // FIXME: This might not work on an altstack ?
4740 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
4742 fprintf (stderr, "Thread %p is not attached to the JIT.\n", (gpointer) (gsize) mono_native_thread_id_get ());
4745 // FIXME: MonoContext usually doesn't include the fp registers, so these are
4746 // clobbered by a single step/breakpoint event. If this turns out to be a problem,
4747 // clob:c could be added to op_seq_point.
4749 mono_sigctx_to_monoctx (sigctx, &ctx);
4750 memcpy (&tls->handler_ctx, &ctx, sizeof (MonoContext));
4751 #ifdef MONO_ARCH_HAVE_SETUP_RESUME_FROM_SIGNAL_HANDLER_CTX
4752 mono_arch_setup_resume_sighandler_ctx (&ctx, func);
4754 MONO_CONTEXT_SET_IP (&ctx, func);
4756 mono_monoctx_to_sigctx (&ctx, sigctx);
4758 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4759 mono_ppc_set_func_into_sigctx (sigctx, func);
4764 mono_debugger_agent_breakpoint_hit (void *sigctx)
4767 * We are called from a signal handler, and running code there causes all kinds of
4768 * problems, like the original signal is disabled, libgc can't handle altstack, etc.
4769 * So set up the signal context to return to the real breakpoint handler function.
4771 resume_from_signal_handler (sigctx, process_breakpoint);
4775 user_break_cb (StackFrameInfo *frame, MonoContext *ctx, gpointer data)
4777 if (frame->managed) {
4778 *(MonoContext*)data = *ctx;
4787 * Called by System.Diagnostics.Debugger:Break ().
4790 mono_debugger_agent_user_break (void)
4792 if (agent_config.enabled) {
4797 /* Obtain a context */
4798 MONO_CONTEXT_SET_IP (&ctx, NULL);
4799 mono_walk_stack_with_ctx (user_break_cb, NULL, (MonoUnwindOptions)0, &ctx);
4800 g_assert (MONO_CONTEXT_GET_IP (&ctx) != NULL);
4802 mono_loader_lock ();
4803 events = create_event_list (EVENT_KIND_USER_BREAK, NULL, NULL, NULL, &suspend_policy);
4804 mono_loader_unlock ();
4806 process_event (EVENT_KIND_USER_BREAK, NULL, 0, &ctx, events, suspend_policy);
4807 } else if (debug_options.native_debugger_break) {
4813 ss_depth_to_string (StepDepth depth)
4816 case STEP_DEPTH_OVER:
4818 case STEP_DEPTH_OUT:
4820 case STEP_DEPTH_INTO:
4823 g_assert_not_reached ();
4829 process_single_step_inner (DebuggerTlsData *tls, gboolean from_signal)
4834 int il_offset, suspend_policy;
4837 MonoContext *ctx = &tls->restore_state.ctx;
4840 MonoSeqPointInfo *info;
4842 ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
4844 /* Skip the instruction causing the single step */
4846 mono_arch_skip_single_step (ctx);
4848 if (suspend_count > 0) {
4849 /* Fastpath during invokes, see in process_suspend () */
4850 if (suspend_count - tls->resume_count == 0)
4852 process_suspend (tls, ctx);
4857 // FIXME: A suspend race
4860 if (mono_thread_internal_current () != ss_req->thread)
4863 if (log_level > 0) {
4864 ji = mini_jit_info_table_find (mono_domain_get (), (char*)ip, &domain);
4866 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);
4869 ji = mini_jit_info_table_find (mono_domain_get (), (char*)ip, &domain);
4870 g_assert (ji && !ji->is_trampoline);
4871 method = jinfo_get_method (ji);
4874 if (method->wrapper_type && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
4879 * Stopping in memset makes half-initialized vtypes visible.
4880 * Stopping in memcpy makes half-copied vtypes visible.
4882 if (method->klass == mono_defaults.string_class && (!strcmp (method->name, "memset") || strstr (method->name, "memcpy")))
4886 * The ip points to the instruction causing the single step event, which is before
4887 * the offset recorded in the seq point map, so find the next seq point after ip.
4889 if (!mono_find_next_seq_point_for_native_offset (domain, method, (guint8*)ip - (guint8*)ji->code_start, &info, &sp))
4892 il_offset = sp.il_offset;
4894 if (!ss_update (ss_req, ji, &sp, tls, ctx))
4897 /* Start single stepping again from the current sequence point */
4898 ss_start (ss_req, method, &sp, info, ctx, tls, FALSE, NULL, 0);
4900 if ((ss_req->filter & STEP_FILTER_STATIC_CTOR) &&
4901 (method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
4902 !strcmp (method->name, ".cctor"))
4905 // FIXME: Has to lock earlier
4907 reqs = g_ptr_array_new ();
4909 mono_loader_lock ();
4911 g_ptr_array_add (reqs, ss_req->req);
4913 events = create_event_list (EVENT_KIND_STEP, reqs, ji, NULL, &suspend_policy);
4915 g_ptr_array_free (reqs, TRUE);
4917 mono_loader_unlock ();
4919 process_event (EVENT_KIND_STEP, jinfo_get_method (ji), il_offset, ctx, events, suspend_policy);
4923 process_single_step (void)
4925 process_signal_event (process_single_step_inner);
4929 * mono_debugger_agent_single_step_event:
4931 * Called from a signal handler to handle a single step event.
4934 mono_debugger_agent_single_step_event (void *sigctx)
4936 /* Resume to process_single_step through the signal context */
4938 // FIXME: Since step out/over is implemented using step in, the step in case should
4939 // be as fast as possible. Move the relevant code from process_single_step_inner ()
4942 if (is_debugger_thread ()) {
4944 * This could happen despite our best effors when the runtime calls
4945 * assembly/type resolve hooks.
4946 * FIXME: Breakpoints too.
4950 mono_sigctx_to_monoctx (sigctx, &ctx);
4951 mono_arch_skip_single_step (&ctx);
4952 mono_monoctx_to_sigctx (&ctx, sigctx);
4956 resume_from_signal_handler (sigctx, process_single_step);
4960 debugger_agent_single_step_from_context (MonoContext *ctx)
4962 DebuggerTlsData *tls;
4963 MonoThreadUnwindState orig_restore_state;
4965 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
4966 /* Fastpath during invokes, see in process_suspend () */
4967 if (tls && suspend_count && suspend_count - tls->resume_count == 0)
4970 if (is_debugger_thread ())
4975 /* Have to save/restore the restore_ctx as we can be called recursively during invokes etc. */
4976 memcpy (&orig_restore_state, &tls->restore_state, sizeof (MonoThreadUnwindState));
4977 mono_thread_state_init_from_monoctx (&tls->restore_state, ctx);
4978 memcpy (&tls->handler_ctx, ctx, sizeof (MonoContext));
4980 process_single_step_inner (tls, FALSE);
4982 memcpy (ctx, &tls->restore_state.ctx, sizeof (MonoContext));
4983 memcpy (&tls->restore_state, &orig_restore_state, sizeof (MonoThreadUnwindState));
4987 debugger_agent_breakpoint_from_context (MonoContext *ctx)
4989 DebuggerTlsData *tls;
4990 MonoThreadUnwindState orig_restore_state;
4993 if (is_debugger_thread ())
4996 orig_ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
4997 MONO_CONTEXT_SET_IP (ctx, orig_ip - 1);
4999 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
5001 memcpy (&orig_restore_state, &tls->restore_state, sizeof (MonoThreadUnwindState));
5002 mono_thread_state_init_from_monoctx (&tls->restore_state, ctx);
5003 memcpy (&tls->handler_ctx, ctx, sizeof (MonoContext));
5005 process_breakpoint_inner (tls, FALSE);
5007 memcpy (ctx, &tls->restore_state.ctx, sizeof (MonoContext));
5008 memcpy (&tls->restore_state, &orig_restore_state, sizeof (MonoThreadUnwindState));
5009 if (MONO_CONTEXT_GET_IP (ctx) == orig_ip - 1)
5010 MONO_CONTEXT_SET_IP (ctx, orig_ip);
5014 * start_single_stepping:
5016 * Turn on single stepping. Can be called multiple times, for example,
5017 * by a single step event request + a suspend.
5020 start_single_stepping (void)
5022 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
5023 int val = InterlockedIncrement (&ss_count);
5026 mono_arch_start_single_stepping ();
5028 g_assert_not_reached ();
5033 stop_single_stepping (void)
5035 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
5036 int val = InterlockedDecrement (&ss_count);
5039 mono_arch_stop_single_stepping ();
5041 g_assert_not_reached ();
5048 * Stop the single stepping operation given by SS_REQ.
5051 ss_stop (SingleStepReq *ss_req)
5056 for (l = ss_req->bps; l; l = l->next) {
5057 clear_breakpoint ((MonoBreakpoint *)l->data);
5059 g_slist_free (ss_req->bps);
5063 if (ss_req->global) {
5064 stop_single_stepping ();
5065 ss_req->global = FALSE;
5072 * Start the single stepping operation given by SS_REQ from the sequence point SP.
5073 * If CTX is not set, then this can target any thread. If CTX is set, then TLS should
5074 * belong to the same thread as CTX.
5075 * If FRAMES is not-null, use that instead of tls->frames for placing breakpoints etc.
5078 ss_start (SingleStepReq *ss_req, MonoMethod *method, SeqPoint* sp, MonoSeqPointInfo *info, MonoContext *ctx, DebuggerTlsData *tls,
5079 gboolean step_to_catch, StackFrame **frames, int nframes)
5081 int i, j, frame_index;
5082 SeqPoint *next_sp, *parent_sp = NULL;
5083 SeqPoint local_sp, local_parent_sp;
5086 MonoSeqPointInfo *parent_info;
5087 MonoMethod *parent_sp_method = NULL;
5088 gboolean enable_global = FALSE;
5090 /* Stop the previous operation */
5094 * Implement single stepping using breakpoints if possible.
5096 if (step_to_catch) {
5097 bp = set_breakpoint (method, sp->il_offset, ss_req->req, NULL);
5098 ss_req->bps = g_slist_append (ss_req->bps, bp);
5102 if (ctx && !frames) {
5103 /* Need parent frames */
5104 if (!tls->context.valid)
5105 mono_thread_state_init_from_monoctx (&tls->context, ctx);
5106 compute_frame_info (tls->thread, tls);
5107 frames = tls->frames;
5108 nframes = tls->frame_count;
5112 * Find the first sequence point in the current or in a previous frame which
5113 * is not the last in its method.
5115 if (ss_req->depth == STEP_DEPTH_OUT) {
5116 /* Ignore seq points in current method */
5117 while (frame_index < nframes) {
5118 StackFrame *frame = frames [frame_index];
5120 method = frame->method;
5121 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &info, &local_sp);
5122 sp = (found_sp)? &local_sp : NULL;
5124 if (sp && sp->next_len != 0)
5127 // There could be method calls before the next seq point in the caller when using nested calls
5128 //enable_global = TRUE;
5130 if (sp && sp->next_len == 0) {
5132 while (frame_index < nframes) {
5133 StackFrame *frame = frames [frame_index];
5135 method = frame->method;
5136 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &info, &local_sp);
5137 sp = (found_sp)? &local_sp : NULL;
5138 if (sp && sp->next_len != 0)
5144 /* Have to put a breakpoint into a parent frame since the seq points might not cover all control flow out of the method */
5145 while (frame_index < nframes) {
5146 StackFrame *frame = frames [frame_index];
5148 parent_sp_method = frame->method;
5149 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &parent_info, &local_parent_sp);
5150 parent_sp = found_sp ? &local_parent_sp : NULL;
5151 if (found_sp && parent_sp->next_len != 0)
5159 if (sp && sp->next_len > 0) {
5160 SeqPoint* next = g_new(SeqPoint, sp->next_len);
5162 mono_seq_point_init_next (info, *sp, next);
5163 for (i = 0; i < sp->next_len; i++) {
5166 bp = set_breakpoint (method, next_sp->il_offset, ss_req->req, NULL);
5167 ss_req->bps = g_slist_append (ss_req->bps, bp);
5173 SeqPoint* next = g_new(SeqPoint, parent_sp->next_len);
5175 mono_seq_point_init_next (parent_info, *parent_sp, next);
5176 for (i = 0; i < parent_sp->next_len; i++) {
5179 bp = set_breakpoint (parent_sp_method, next_sp->il_offset, ss_req->req, NULL);
5180 ss_req->bps = g_slist_append (ss_req->bps, bp);
5185 if (ss_req->nframes == 0)
5186 ss_req->nframes = nframes;
5188 if ((ss_req->depth == STEP_DEPTH_OVER) && (!sp && !parent_sp)) {
5189 DEBUG_PRINTF (1, "[dbg] No parent frame for step over, transition to step into.\n");
5191 * This is needed since if we leave managed code, and later return to it, step over
5192 * is not going to stop.
5193 * This approach is a bit ugly, since we change the step depth, but it only affects
5194 * clients who reuse the same step request, and only in this special case.
5196 ss_req->depth = STEP_DEPTH_INTO;
5199 if (ss_req->depth == STEP_DEPTH_OVER) {
5200 /* Need to stop in catch clauses as well */
5201 for (i = 0; i < nframes; ++i) {
5202 StackFrame *frame = frames [i];
5205 MonoJitInfo *jinfo = frame->ji;
5206 for (j = 0; j < jinfo->num_clauses; ++j) {
5207 MonoJitExceptionInfo *ei = &jinfo->clauses [j];
5209 found_sp = mono_find_next_seq_point_for_native_offset (frame->domain, frame->method, (char*)ei->handler_start - (char*)jinfo->code_start, NULL, &local_sp);
5210 sp = (found_sp)? &local_sp : NULL;
5212 bp = set_breakpoint (frame->method, sp->il_offset, ss_req->req, NULL);
5213 ss_req->bps = g_slist_append (ss_req->bps, bp);
5220 if (ss_req->depth == STEP_DEPTH_INTO) {
5221 /* Enable global stepping so we stop at method entry too */
5222 enable_global = TRUE;
5226 * The ctx/frame info computed above will become invalid when we continue.
5228 tls->context.valid = FALSE;
5229 tls->async_state.valid = FALSE;
5230 invalidate_frames (tls);
5233 if (enable_global) {
5234 DEBUG_PRINTF (1, "[dbg] Turning on global single stepping.\n");
5235 ss_req->global = TRUE;
5236 start_single_stepping ();
5237 } else if (!ss_req->bps) {
5238 DEBUG_PRINTF (1, "[dbg] Turning on global single stepping.\n");
5239 ss_req->global = TRUE;
5240 start_single_stepping ();
5242 ss_req->global = FALSE;
5247 * Start single stepping of thread THREAD
5250 ss_create (MonoInternalThread *thread, StepSize size, StepDepth depth, StepFilter filter, EventRequest *req)
5252 DebuggerTlsData *tls;
5253 MonoSeqPointInfo *info = NULL;
5254 SeqPoint *sp = NULL;
5257 MonoMethod *method = NULL;
5258 MonoDebugMethodInfo *minfo;
5259 gboolean step_to_catch = FALSE;
5260 gboolean set_ip = FALSE;
5261 StackFrame **frames = NULL;
5264 if (suspend_count == 0)
5265 return ERR_NOT_SUSPENDED;
5267 wait_for_suspend ();
5269 // FIXME: Multiple requests
5271 DEBUG_PRINTF (0, "Received a single step request while the previous one was still active.\n");
5272 return ERR_NOT_IMPLEMENTED;
5275 DEBUG_PRINTF (1, "[dbg] Starting single step of thread %p (depth=%s).\n", thread, ss_depth_to_string (depth));
5277 ss_req = g_new0 (SingleStepReq, 1);
5279 ss_req->thread = thread;
5280 ss_req->size = size;
5281 ss_req->depth = depth;
5282 ss_req->filter = filter;
5285 mono_loader_lock ();
5286 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
5287 mono_loader_unlock ();
5289 g_assert (tls->context.valid);
5291 if (tls->restore_state.valid && MONO_CONTEXT_GET_IP (&tls->context.ctx) != MONO_CONTEXT_GET_IP (&tls->restore_state.ctx)) {
5293 * Need to start single stepping from restore_state and not from the current state
5296 frames = compute_frame_info_from (thread, tls, &tls->restore_state, &nframes);
5299 ss_req->start_sp = ss_req->last_sp = MONO_CONTEXT_GET_SP (&tls->context.ctx);
5301 if (tls->catch_state.valid) {
5303 StackFrameInfo frame;
5304 MonoContext new_ctx;
5305 MonoLMF *lmf = NULL;
5308 * We are stopped at a throw site. Stepping should go to the catch site.
5311 /* Find the the jit info for the catch context */
5312 res = mono_find_jit_info_ext (
5313 (MonoDomain *)tls->catch_state.unwind_data [MONO_UNWIND_DATA_DOMAIN],
5314 (MonoJitTlsData *)((MonoThreadInfo*)thread->thread_info)->jit_data,
5315 NULL, &tls->catch_state.ctx, &new_ctx, NULL, &lmf, NULL, &frame);
5317 g_assert (frame.type == FRAME_TYPE_MANAGED);
5320 * Find the seq point corresponding to the landing site ip, which is the first seq
5323 found_sp = mono_find_next_seq_point_for_native_offset (frame.domain, frame.method, frame.native_offset, &info, &local_sp);
5324 sp = (found_sp)? &local_sp : NULL;
5326 no_seq_points_found (frame.method, frame.native_offset);
5329 method = frame.method;
5331 step_to_catch = TRUE;
5332 /* This make sure the seq point is not skipped by process_single_step () */
5333 ss_req->last_sp = NULL;
5336 if (!step_to_catch) {
5337 StackFrame *frame = NULL;
5340 if (frames && nframes)
5343 compute_frame_info (thread, tls);
5345 if (tls->frame_count)
5346 frame = tls->frames [0];
5349 if (ss_req->size == STEP_SIZE_LINE) {
5351 ss_req->last_method = frame->method;
5352 ss_req->last_line = -1;
5354 minfo = mono_debug_lookup_method (frame->method);
5355 if (minfo && frame->il_offset != -1) {
5356 MonoDebugSourceLocation *loc = mono_debug_method_lookup_location (minfo, frame->il_offset);
5359 ss_req->last_line = loc->row;
5367 if (!method && frame->il_offset != -1) {
5368 /* FIXME: Sort the table and use a binary search */
5369 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &info, &local_sp);
5370 sp = (found_sp)? &local_sp : NULL;
5372 no_seq_points_found (frame->method, frame->native_offset);
5374 method = frame->method;
5379 ss_req->start_method = method;
5381 ss_start (ss_req, method, sp, info, set_ip ? &tls->restore_state.ctx : &tls->context.ctx, tls, step_to_catch, frames, nframes);
5384 free_frames (frames, nframes);
5390 ss_destroy (SingleStepReq *req)
5393 g_assert (ss_req == req);
5402 ss_clear_for_assembly (SingleStepReq *req, MonoAssembly *assembly)
5405 gboolean found = TRUE;
5409 for (l = ss_req->bps; l; l = l->next) {
5410 if (breakpoint_matches_assembly ((MonoBreakpoint *)l->data, assembly)) {
5411 clear_breakpoint ((MonoBreakpoint *)l->data);
5412 ss_req->bps = g_slist_delete_link (ss_req->bps, l);
5421 * Called from metadata by the icall for System.Diagnostics.Debugger:Log ().
5424 mono_debugger_agent_debug_log (int level, MonoString *category, MonoString *message)
5430 if (!agent_config.enabled)
5433 mono_loader_lock ();
5434 events = create_event_list (EVENT_KIND_USER_LOG, NULL, NULL, NULL, &suspend_policy);
5435 mono_loader_unlock ();
5438 ei.category = category ? mono_string_to_utf8 (category) : NULL;
5439 ei.message = message ? mono_string_to_utf8 (message) : NULL;
5441 process_event (EVENT_KIND_USER_LOG, &ei, 0, NULL, events, suspend_policy);
5443 g_free (ei.category);
5444 g_free (ei.message);
5448 mono_debugger_agent_debug_log_is_enabled (void)
5450 /* Treat this as true even if there is no event request for EVENT_KIND_USER_LOG */
5451 return agent_config.enabled;
5454 #if defined(PLATFORM_ANDROID) || defined(TARGET_ANDROID)
5456 mono_debugger_agent_unhandled_exception (MonoException *exc)
5465 memset (&ei, 0, sizeof (EventInfo));
5466 ei.exc = (MonoObject*)exc;
5468 mono_loader_lock ();
5469 events = create_event_list (EVENT_KIND_EXCEPTION, NULL, NULL, &ei, &suspend_policy);
5470 mono_loader_unlock ();
5472 process_event (EVENT_KIND_EXCEPTION, &ei, 0, NULL, events, suspend_policy);
5477 mono_debugger_agent_handle_exception (MonoException *exc, MonoContext *throw_ctx,
5478 MonoContext *catch_ctx)
5480 int i, j, suspend_policy;
5482 MonoJitInfo *ji, *catch_ji;
5484 DebuggerTlsData *tls = NULL;
5486 if (thread_to_tls != NULL) {
5487 MonoInternalThread *thread = mono_thread_internal_current ();
5489 mono_loader_lock ();
5490 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
5491 mono_loader_unlock ();
5493 if (tls && tls->abort_requested)
5495 if (tls && tls->disable_breakpoints)
5499 memset (&ei, 0, sizeof (EventInfo));
5501 /* Just-In-Time debugging */
5503 if (agent_config.onuncaught && !inited) {
5504 finish_agent_init (FALSE);
5507 * Send an unsolicited EXCEPTION event with a dummy request id.
5509 events = g_slist_append (NULL, GUINT_TO_POINTER (0xffffff));
5510 ei.exc = (MonoObject*)exc;
5511 process_event (EVENT_KIND_EXCEPTION, &ei, 0, throw_ctx, events, SUSPEND_POLICY_ALL);
5514 } else if (agent_config.onthrow && !inited) {
5516 gboolean found = FALSE;
5518 for (l = agent_config.onthrow; l; l = l->next) {
5519 char *ex_type = (char *)l->data;
5520 char *f = mono_type_full_name (&exc->object.vtable->klass->byval_arg);
5522 if (!strcmp (ex_type, "") || !strcmp (ex_type, f))
5529 finish_agent_init (FALSE);
5532 * Send an unsolicited EXCEPTION event with a dummy request id.
5534 events = g_slist_append (NULL, GUINT_TO_POINTER (0xffffff));
5535 ei.exc = (MonoObject*)exc;
5536 process_event (EVENT_KIND_EXCEPTION, &ei, 0, throw_ctx, events, SUSPEND_POLICY_ALL);
5544 ji = mini_jit_info_table_find (mono_domain_get (), (char *)MONO_CONTEXT_GET_IP (throw_ctx), NULL);
5546 catch_ji = mini_jit_info_table_find (mono_domain_get (), (char *)MONO_CONTEXT_GET_IP (catch_ctx), NULL);
5550 ei.exc = (MonoObject*)exc;
5551 ei.caught = catch_ctx != NULL;
5553 mono_loader_lock ();
5555 /* Treat exceptions which are caught in non-user code as unhandled */
5556 for (i = 0; i < event_requests->len; ++i) {
5557 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
5558 if (req->event_kind != EVENT_KIND_EXCEPTION)
5561 for (j = 0; j < req->nmodifiers; ++j) {
5562 Modifier *mod = &req->modifiers [j];
5564 if (mod->kind == MOD_KIND_ASSEMBLY_ONLY && catch_ji) {
5566 gboolean found = FALSE;
5567 MonoAssembly **assemblies = mod->data.assemblies;
5570 for (k = 0; assemblies [k]; ++k)
5571 if (assemblies [k] == jinfo_get_method (catch_ji)->klass->image->assembly)
5580 events = create_event_list (EVENT_KIND_EXCEPTION, NULL, ji, &ei, &suspend_policy);
5581 mono_loader_unlock ();
5583 if (tls && ei.caught && catch_ctx) {
5584 memset (&tls->catch_state, 0, sizeof (tls->catch_state));
5585 tls->catch_state.ctx = *catch_ctx;
5586 tls->catch_state.unwind_data [MONO_UNWIND_DATA_DOMAIN] = mono_domain_get ();
5587 tls->catch_state.valid = TRUE;
5590 process_event (EVENT_KIND_EXCEPTION, &ei, 0, throw_ctx, events, suspend_policy);
5593 tls->catch_state.valid = FALSE;
5597 mono_debugger_agent_begin_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
5599 DebuggerTlsData *tls;
5604 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
5609 * We're about to invoke an exception filter during the first pass of exception handling.
5611 * 'ctx' is the context that'll get passed to the filter ('call_filter (ctx, ei->data.filter)'),
5612 * 'orig_ctx' is the context where the exception has been thrown.
5615 * See mcs/class/Mono.Debugger.Soft/Tests/dtest-excfilter.il for an example.
5617 * If we're stopped in Filter(), normal stack unwinding would first unwind to
5618 * the call site (line 37) and then continue to Main(), but it would never
5619 * include the throw site (line 32).
5621 * Since exception filters are invoked during the first pass of exception handling,
5622 * the stack frames of the throw site are still intact, so we should include them
5625 * We do this here by saving the context of the throw site in 'tls->filter_state'.
5627 * Exception filters are used by MonoDroid, where we want to stop inside a call filter,
5628 * but report the location of the 'throw' to the user.
5632 g_assert (mono_thread_state_init_from_monoctx (&tls->filter_state, orig_ctx));
5636 mono_debugger_agent_end_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
5638 DebuggerTlsData *tls;
5643 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
5647 tls->filter_state.valid = FALSE;
5651 * buffer_add_value_full:
5653 * Add the encoding of the value at ADDR described by T to the buffer.
5654 * AS_VTYPE determines whenever to treat primitive types as primitive types or
5658 buffer_add_value_full (Buffer *buf, MonoType *t, void *addr, MonoDomain *domain,
5659 gboolean as_vtype, GHashTable *parent_vtypes)
5662 gboolean boxed_vtype = FALSE;
5665 if (!(*(void**)addr)) {
5666 /* This can happen with compiler generated locals */
5667 //printf ("%s\n", mono_type_full_name (t));
5668 buffer_add_byte (buf, VALUE_TYPE_ID_NULL);
5671 g_assert (*(void**)addr);
5672 addr = *(void**)addr;
5677 case MONO_TYPE_BOOLEAN:
5680 case MONO_TYPE_CHAR:
5700 case MONO_TYPE_VOID:
5701 buffer_add_byte (buf, t->type);
5703 case MONO_TYPE_BOOLEAN:
5706 buffer_add_byte (buf, t->type);
5707 buffer_add_int (buf, *(gint8*)addr);
5709 case MONO_TYPE_CHAR:
5712 buffer_add_byte (buf, t->type);
5713 buffer_add_int (buf, *(gint16*)addr);
5718 buffer_add_byte (buf, t->type);
5719 buffer_add_int (buf, *(gint32*)addr);
5724 buffer_add_byte (buf, t->type);
5725 buffer_add_long (buf, *(gint64*)addr);
5729 /* Treat it as a vtype */
5731 case MONO_TYPE_PTR: {
5732 gssize val = *(gssize*)addr;
5734 buffer_add_byte (buf, t->type);
5735 buffer_add_long (buf, val);
5739 case MONO_TYPE_STRING:
5740 case MONO_TYPE_SZARRAY:
5741 case MONO_TYPE_OBJECT:
5742 case MONO_TYPE_CLASS:
5743 case MONO_TYPE_ARRAY:
5744 obj = *(MonoObject**)addr;
5747 buffer_add_byte (buf, VALUE_TYPE_ID_NULL);
5749 if (obj->vtable->klass->valuetype) {
5750 t = &obj->vtable->klass->byval_arg;
5751 addr = mono_object_unbox (obj);
5754 } else if (obj->vtable->klass->rank) {
5755 buffer_add_byte (buf, obj->vtable->klass->byval_arg.type);
5756 } else if (obj->vtable->klass->byval_arg.type == MONO_TYPE_GENERICINST) {
5757 buffer_add_byte (buf, MONO_TYPE_CLASS);
5759 buffer_add_byte (buf, obj->vtable->klass->byval_arg.type);
5761 buffer_add_objid (buf, obj);
5765 case MONO_TYPE_VALUETYPE:
5766 case MONO_TYPE_TYPEDBYREF: {
5770 MonoClass *klass = mono_class_from_mono_type (t);
5775 * Handle boxed vtypes recursively referencing themselves using fields.
5778 parent_vtypes = g_hash_table_new (NULL, NULL);
5779 vtype_index = GPOINTER_TO_INT (g_hash_table_lookup (parent_vtypes, addr));
5781 if (CHECK_PROTOCOL_VERSION (2, 33)) {
5782 buffer_add_byte (buf, VALUE_TYPE_ID_PARENT_VTYPE);
5783 buffer_add_int (buf, vtype_index - 1);
5785 /* The client can't handle PARENT_VTYPE */
5786 buffer_add_byte (buf, VALUE_TYPE_ID_NULL);
5790 g_hash_table_insert (parent_vtypes, addr, GINT_TO_POINTER (g_hash_table_size (parent_vtypes) + 1));
5794 buffer_add_byte (buf, MONO_TYPE_VALUETYPE);
5795 buffer_add_byte (buf, klass->enumtype);
5796 buffer_add_typeid (buf, domain, klass);
5800 while ((f = mono_class_get_fields (klass, &iter))) {
5801 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC)
5803 if (mono_field_is_deleted (f))
5807 buffer_add_int (buf, nfields);
5810 while ((f = mono_class_get_fields (klass, &iter))) {
5811 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC)
5813 if (mono_field_is_deleted (f))
5815 buffer_add_value_full (buf, f->type, (guint8*)addr + f->offset - sizeof (MonoObject), domain, FALSE, parent_vtypes);
5819 g_hash_table_remove (parent_vtypes, addr);
5820 if (g_hash_table_size (parent_vtypes) == 0) {
5821 g_hash_table_destroy (parent_vtypes);
5822 parent_vtypes = NULL;
5827 case MONO_TYPE_GENERICINST:
5828 if (mono_type_generic_inst_is_valuetype (t)) {
5840 buffer_add_value (Buffer *buf, MonoType *t, void *addr, MonoDomain *domain)
5842 buffer_add_value_full (buf, t, addr, domain, FALSE, NULL);
5846 obj_is_of_type (MonoObject *obj, MonoType *t)
5848 MonoClass *klass = obj->vtable->klass;
5849 if (!mono_class_is_assignable_from (mono_class_from_mono_type (t), klass)) {
5850 if (mono_class_is_transparent_proxy (klass)) {
5851 klass = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
5852 if (mono_class_is_assignable_from (mono_class_from_mono_type (t), klass)) {
5862 decode_value (MonoType *t, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit);
5865 decode_vtype (MonoType *t, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit)
5871 gpointer iter = NULL;
5875 is_enum = decode_byte (buf, &buf, limit);
5876 /* Enums are sent as a normal vtype */
5878 return ERR_NOT_IMPLEMENTED;
5879 klass = decode_typeid (buf, &buf, limit, &d, &err);
5880 if (err != ERR_NONE)
5883 if (t && klass != mono_class_from_mono_type (t)) {
5884 char *name = mono_type_full_name (t);
5885 char *name2 = mono_type_full_name (&klass->byval_arg);
5886 DEBUG_PRINTF (1, "[%p] Expected value of type %s, got %s.\n", (gpointer) (gsize) mono_native_thread_id_get (), name, name2);
5889 return ERR_INVALID_ARGUMENT;
5892 nfields = decode_int (buf, &buf, limit);
5893 while ((f = mono_class_get_fields (klass, &iter))) {
5894 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC)
5896 if (mono_field_is_deleted (f))
5898 err = decode_value (f->type, domain, (guint8*)addr + f->offset - sizeof (MonoObject), buf, &buf, limit);
5899 if (err != ERR_NONE)
5903 g_assert (nfields == 0);
5911 decode_value_internal (MonoType *t, int type, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit)
5915 if (type != t->type && !MONO_TYPE_IS_REFERENCE (t) &&
5916 !(t->type == MONO_TYPE_I && type == MONO_TYPE_VALUETYPE) &&
5917 !(t->type == MONO_TYPE_U && type == MONO_TYPE_VALUETYPE) &&
5918 !(t->type == MONO_TYPE_PTR && type == MONO_TYPE_I8) &&
5919 !(t->type == MONO_TYPE_GENERICINST && type == MONO_TYPE_VALUETYPE) &&
5920 !(t->type == MONO_TYPE_VALUETYPE && type == MONO_TYPE_OBJECT)) {
5921 char *name = mono_type_full_name (t);
5922 DEBUG_PRINTF (1, "[%p] Expected value of type %s, got 0x%0x.\n", (gpointer) (gsize) mono_native_thread_id_get (), name, type);
5924 return ERR_INVALID_ARGUMENT;
5928 case MONO_TYPE_BOOLEAN:
5929 *(guint8*)addr = decode_int (buf, &buf, limit);
5931 case MONO_TYPE_CHAR:
5932 *(gunichar2*)addr = decode_int (buf, &buf, limit);
5935 *(gint8*)addr = decode_int (buf, &buf, limit);
5938 *(guint8*)addr = decode_int (buf, &buf, limit);
5941 *(gint16*)addr = decode_int (buf, &buf, limit);
5944 *(guint16*)addr = decode_int (buf, &buf, limit);
5947 *(gint32*)addr = decode_int (buf, &buf, limit);
5950 *(guint32*)addr = decode_int (buf, &buf, limit);
5953 *(gint64*)addr = decode_long (buf, &buf, limit);
5956 *(guint64*)addr = decode_long (buf, &buf, limit);
5959 *(guint32*)addr = decode_int (buf, &buf, limit);
5962 *(guint64*)addr = decode_long (buf, &buf, limit);
5965 /* We send these as I8, so we get them back as such */
5966 g_assert (type == MONO_TYPE_I8);
5967 *(gssize*)addr = decode_long (buf, &buf, limit);
5969 case MONO_TYPE_GENERICINST:
5970 if (MONO_TYPE_ISSTRUCT (t)) {
5971 /* The client sends these as a valuetype */
5979 /* We send these as vtypes, so we get them back as such */
5980 g_assert (type == MONO_TYPE_VALUETYPE);
5983 case MONO_TYPE_VALUETYPE:
5984 if (type == MONO_TYPE_OBJECT) {
5986 int objid = decode_objid (buf, &buf, limit);
5990 err = get_object (objid, (MonoObject**)&obj);
5991 if (err != ERR_NONE)
5994 return ERR_INVALID_ARGUMENT;
5995 if (obj->vtable->klass != mono_class_from_mono_type (t)) {
5996 DEBUG_PRINTF (1, "Expected type '%s', got object '%s'\n", mono_type_full_name (t), obj->vtable->klass->name);
5997 return ERR_INVALID_ARGUMENT;
5999 memcpy (addr, mono_object_unbox (obj), mono_class_value_size (obj->vtable->klass, NULL));
6001 err = decode_vtype (t, domain, addr, buf, &buf, limit);
6002 if (err != ERR_NONE)
6008 if (MONO_TYPE_IS_REFERENCE (t)) {
6009 if (type == MONO_TYPE_OBJECT) {
6010 int objid = decode_objid (buf, &buf, limit);
6014 err = get_object (objid, (MonoObject**)&obj);
6015 if (err != ERR_NONE)
6019 if (!obj_is_of_type (obj, t)) {
6020 DEBUG_PRINTF (1, "Expected type '%s', got '%s'\n", mono_type_full_name (t), obj->vtable->klass->name);
6021 return ERR_INVALID_ARGUMENT;
6024 if (obj && obj->vtable->domain != domain)
6025 return ERR_INVALID_ARGUMENT;
6027 mono_gc_wbarrier_generic_store (addr, obj);
6028 } else if (type == VALUE_TYPE_ID_NULL) {
6029 *(MonoObject**)addr = NULL;
6030 } else if (type == MONO_TYPE_VALUETYPE) {
6038 /* This can happen when round-tripping boxed vtypes */
6040 * Obtain vtype class.
6041 * Same as the beginning of the handle_vtype case above.
6044 is_enum = decode_byte (buf, &buf, limit);
6046 return ERR_NOT_IMPLEMENTED;
6047 klass = decode_typeid (buf, &buf, limit, &d, &err);
6048 if (err != ERR_NONE)
6051 /* Decode the vtype into a temporary buffer, then box it. */
6052 vtype_buf_size = mono_class_value_size (klass, NULL);
6053 vtype_buf = (guint8 *)g_malloc0 (vtype_buf_size);
6054 g_assert (vtype_buf);
6057 err = decode_vtype (NULL, domain, vtype_buf, buf, &buf, limit);
6058 if (err != ERR_NONE) {
6062 *(MonoObject**)addr = mono_value_box (d, klass, vtype_buf);
6065 char *name = mono_type_full_name (t);
6066 DEBUG_PRINTF (1, "[%p] Expected value of type %s, got 0x%0x.\n", (gpointer) (gsize) mono_native_thread_id_get (), name, type);
6068 return ERR_INVALID_ARGUMENT;
6082 decode_value (MonoType *t, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit)
6085 int type = decode_byte (buf, &buf, limit);
6087 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
6088 MonoType *targ = t->data.generic_class->context.class_inst->type_argv [0];
6089 guint8 *nullable_buf;
6092 * First try decoding it as a Nullable`1
6094 err = decode_value_internal (t, type, domain, addr, buf, endbuf, limit);
6095 if (err == ERR_NONE)
6099 * Then try decoding as a primitive value or null.
6101 if (targ->type == type) {
6102 nullable_buf = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (targ)));
6103 err = decode_value_internal (targ, type, domain, nullable_buf, buf, endbuf, limit);
6104 if (err != ERR_NONE) {
6105 g_free (nullable_buf);
6108 mono_nullable_init (addr, mono_value_box (domain, mono_class_from_mono_type (targ), nullable_buf), mono_class_from_mono_type (t));
6109 g_free (nullable_buf);
6112 } else if (type == VALUE_TYPE_ID_NULL) {
6113 mono_nullable_init (addr, NULL, mono_class_from_mono_type (t));
6119 return decode_value_internal (t, type, domain, addr, buf, endbuf, limit);
6123 add_var (Buffer *buf, MonoDebugMethodJitInfo *jit, MonoType *t, MonoDebugVarInfo *var, MonoContext *ctx, MonoDomain *domain, gboolean as_vtype)
6127 guint8 *addr, *gaddr;
6130 flags = var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6131 reg = var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6134 case MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER:
6135 reg_val = mono_arch_context_get_int_reg (ctx, reg);
6137 buffer_add_value_full (buf, t, ®_val, domain, as_vtype, NULL);
6139 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET:
6140 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6141 addr += (gint32)var->offset;
6143 //printf ("[R%d+%d] = %p\n", reg, var->offset, addr);
6145 buffer_add_value_full (buf, t, addr, domain, as_vtype, NULL);
6147 case MONO_DEBUG_VAR_ADDRESS_MODE_DEAD:
6150 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET_INDIR:
6151 case MONO_DEBUG_VAR_ADDRESS_MODE_VTADDR:
6152 /* Same as regoffset, but with an indirection */
6153 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6154 addr += (gint32)var->offset;
6156 gaddr = (guint8 *)*(gpointer*)addr;
6158 buffer_add_value_full (buf, t, gaddr, domain, as_vtype, NULL);
6160 case MONO_DEBUG_VAR_ADDRESS_MODE_GSHAREDVT_LOCAL: {
6161 MonoDebugVarInfo *info_var = jit->gsharedvt_info_var;
6162 MonoDebugVarInfo *locals_var = jit->gsharedvt_locals_var;
6163 MonoGSharedVtMethodRuntimeInfo *info;
6169 g_assert (info_var);
6170 g_assert (locals_var);
6172 flags = info_var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6173 reg = info_var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6174 if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET) {
6175 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6176 addr += (gint32)info_var->offset;
6177 info = (MonoGSharedVtMethodRuntimeInfo *)*(gpointer*)addr;
6178 } else if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER) {
6179 info = (MonoGSharedVtMethodRuntimeInfo *)mono_arch_context_get_int_reg (ctx, reg);
6181 g_assert_not_reached ();
6185 flags = locals_var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6186 reg = locals_var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6187 if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET) {
6188 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6189 addr += (gint32)locals_var->offset;
6190 locals = (guint8 *)*(gpointer*)addr;
6191 } else if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER) {
6192 locals = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6194 g_assert_not_reached ();
6198 addr = locals + GPOINTER_TO_INT (info->entries [idx]);
6200 buffer_add_value_full (buf, t, addr, domain, as_vtype, NULL);
6205 g_assert_not_reached ();
6210 set_var (MonoType *t, MonoDebugVarInfo *var, MonoContext *ctx, MonoDomain *domain, guint8 *val, mgreg_t **reg_locations, MonoContext *restore_ctx)
6214 guint8 *addr, *gaddr;
6216 flags = var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6217 reg = var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6219 if (MONO_TYPE_IS_REFERENCE (t))
6220 size = sizeof (gpointer);
6222 size = mono_class_value_size (mono_class_from_mono_type (t), NULL);
6225 case MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER: {
6226 #ifdef MONO_ARCH_HAVE_CONTEXT_SET_INT_REG
6228 gboolean is_signed = FALSE;
6231 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6234 // FIXME: Write barriers
6235 mono_gc_memmove_atomic (addr, val, size);
6240 if (!t->byref && (t->type == MONO_TYPE_I1 || t->type == MONO_TYPE_I2 || t->type == MONO_TYPE_I4 || t->type == MONO_TYPE_I8))
6245 v = is_signed ? *(gint8*)val : *(guint8*)val;
6248 v = is_signed ? *(gint16*)val : *(guint16*)val;
6251 v = is_signed ? *(gint32*)val : *(guint32*)val;
6254 v = is_signed ? *(gint64*)val : *(guint64*)val;
6257 g_assert_not_reached ();
6260 /* Set value on the stack or in the return ctx */
6261 if (reg_locations [reg]) {
6262 /* Saved on the stack */
6263 DEBUG_PRINTF (1, "[dbg] Setting stack location %p for reg %x to %p.\n", reg_locations [reg], reg, (gpointer)v);
6264 *(reg_locations [reg]) = v;
6267 DEBUG_PRINTF (1, "[dbg] Setting context location for reg %x to %p.\n", reg, (gpointer)v);
6268 mono_arch_context_set_int_reg (restore_ctx, reg, v);
6271 // FIXME: Move these to mono-context.h/c.
6272 mono_arch_context_set_int_reg (ctx, reg, v);
6274 // FIXME: Can't set registers, so we disable linears
6279 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET:
6280 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6281 addr += (gint32)var->offset;
6283 //printf ("[R%d+%d] = %p\n", reg, var->offset, addr);
6286 addr = *(guint8**)addr;
6292 // FIXME: Write barriers
6293 mono_gc_memmove_atomic (addr, val, size);
6295 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET_INDIR:
6296 /* Same as regoffset, but with an indirection */
6297 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6298 addr += (gint32)var->offset;
6300 gaddr = (guint8 *)*(gpointer*)addr;
6302 // FIXME: Write barriers
6303 mono_gc_memmove_atomic (gaddr, val, size);
6305 case MONO_DEBUG_VAR_ADDRESS_MODE_DEAD:
6309 g_assert_not_reached ();
6314 clear_event_request (int req_id, int etype)
6318 mono_loader_lock ();
6319 for (i = 0; i < event_requests->len; ++i) {
6320 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
6322 if (req->id == req_id && req->event_kind == etype) {
6323 if (req->event_kind == EVENT_KIND_BREAKPOINT)
6324 clear_breakpoint ((MonoBreakpoint *)req->info);
6325 if (req->event_kind == EVENT_KIND_STEP)
6326 ss_destroy ((SingleStepReq *)req->info);
6327 if (req->event_kind == EVENT_KIND_METHOD_ENTRY)
6328 clear_breakpoint ((MonoBreakpoint *)req->info);
6329 if (req->event_kind == EVENT_KIND_METHOD_EXIT)
6330 clear_breakpoint ((MonoBreakpoint *)req->info);
6331 g_ptr_array_remove_index_fast (event_requests, i);
6336 mono_loader_unlock ();
6340 clear_assembly_from_modifier (EventRequest *req, Modifier *m, MonoAssembly *assembly)
6344 if (m->kind == MOD_KIND_EXCEPTION_ONLY && m->data.exc_class && m->data.exc_class->image->assembly == assembly)
6345 m->kind = MOD_KIND_NONE;
6346 if (m->kind == MOD_KIND_ASSEMBLY_ONLY && m->data.assemblies) {
6347 int count = 0, match_count = 0, pos;
6348 MonoAssembly **newassemblies;
6350 for (i = 0; m->data.assemblies [i]; ++i) {
6352 if (m->data.assemblies [i] == assembly)
6357 newassemblies = g_new0 (MonoAssembly*, count - match_count);
6360 for (i = 0; i < count; ++i)
6361 if (m->data.assemblies [i] != assembly)
6362 newassemblies [pos ++] = m->data.assemblies [i];
6363 g_assert (pos == count - match_count);
6364 g_free (m->data.assemblies);
6365 m->data.assemblies = newassemblies;
6371 clear_assembly_from_modifiers (EventRequest *req, MonoAssembly *assembly)
6375 for (i = 0; i < req->nmodifiers; ++i) {
6376 Modifier *m = &req->modifiers [i];
6378 clear_assembly_from_modifier (req, m, assembly);
6383 * clear_event_requests_for_assembly:
6385 * Clear all events requests which reference ASSEMBLY.
6388 clear_event_requests_for_assembly (MonoAssembly *assembly)
6393 mono_loader_lock ();
6397 for (i = 0; i < event_requests->len; ++i) {
6398 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
6400 clear_assembly_from_modifiers (req, assembly);
6402 if (req->event_kind == EVENT_KIND_BREAKPOINT && breakpoint_matches_assembly ((MonoBreakpoint *)req->info, assembly)) {
6403 clear_event_request (req->id, req->event_kind);
6408 if (req->event_kind == EVENT_KIND_STEP)
6409 ss_clear_for_assembly ((SingleStepReq *)req->info, assembly);
6412 mono_loader_unlock ();
6416 * type_comes_from_assembly:
6418 * GHRFunc that returns TRUE if klass comes from assembly
6421 type_comes_from_assembly (gpointer klass, gpointer also_klass, gpointer assembly)
6423 return (mono_class_get_image ((MonoClass*)klass) == mono_assembly_get_image ((MonoAssembly*)assembly));
6427 * clear_types_for_assembly:
6429 * Clears types from loaded_classes for a given assembly
6432 clear_types_for_assembly (MonoAssembly *assembly)
6434 MonoDomain *domain = mono_domain_get ();
6435 AgentDomainInfo *info = NULL;
6437 if (!domain || !domain_jit_info (domain))
6438 /* Can happen during shutdown */
6441 info = get_agent_domain_info (domain);
6443 mono_loader_lock ();
6444 g_hash_table_foreach_remove (info->loaded_classes, type_comes_from_assembly, assembly);
6445 mono_loader_unlock ();
6449 add_thread (gpointer key, gpointer value, gpointer user_data)
6451 MonoInternalThread *thread = (MonoInternalThread *)value;
6452 Buffer *buf = (Buffer *)user_data;
6454 buffer_add_objid (buf, (MonoObject*)thread);
6458 do_invoke_method (DebuggerTlsData *tls, Buffer *buf, InvokeData *invoke, guint8 *p, guint8 **endp)
6461 guint8 *end = invoke->endp;
6465 MonoMethodSignature *sig;
6468 MonoObject *this_arg, *res, *exc;
6471 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
6474 MonoStopwatch watch;
6476 if (invoke->method) {
6478 * Invoke this method directly, currently only Environment.Exit () is supported.
6481 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>");
6483 mono_runtime_try_invoke (invoke->method, NULL, invoke->args, &exc, &error);
6484 mono_error_raise_exception (&error); /* FIXME don't raise here */
6486 g_assert_not_reached ();
6489 m = decode_methodid (p, &p, end, &domain, &err);
6490 if (err != ERR_NONE)
6492 sig = mono_method_signature (m);
6494 if (m->klass->valuetype)
6495 this_buf = (guint8 *)g_alloca (mono_class_instance_size (m->klass));
6497 this_buf = (guint8 *)g_alloca (sizeof (MonoObject*));
6498 if (m->klass->valuetype && (m->flags & METHOD_ATTRIBUTE_STATIC)) {
6499 /* Should be null */
6500 int type = decode_byte (p, &p, end);
6501 if (type != VALUE_TYPE_ID_NULL) {
6502 DEBUG_PRINTF (1, "[%p] Error: Static vtype method invoked with this argument.\n", (gpointer) (gsize) mono_native_thread_id_get ());
6503 return ERR_INVALID_ARGUMENT;
6505 memset (this_buf, 0, mono_class_instance_size (m->klass));
6506 } else if (m->klass->valuetype && !strcmp (m->name, ".ctor")) {
6510 int type = decode_byte (p, &tmp_p, end);
6511 if (type == VALUE_TYPE_ID_NULL) {
6512 memset (this_buf, 0, mono_class_instance_size (m->klass));
6515 err = decode_value (&m->klass->byval_arg, domain, this_buf, p, &p, end);
6516 if (err != ERR_NONE)
6520 err = decode_value (&m->klass->byval_arg, domain, this_buf, p, &p, end);
6521 if (err != ERR_NONE)
6525 if (!m->klass->valuetype)
6526 this_arg = *(MonoObject**)this_buf;
6530 if (MONO_CLASS_IS_INTERFACE (m->klass)) {
6532 DEBUG_PRINTF (1, "[%p] Error: Interface method invoked without this argument.\n", (gpointer) (gsize) mono_native_thread_id_get ());
6533 return ERR_INVALID_ARGUMENT;
6535 m = mono_object_get_virtual_method (this_arg, m);
6536 /* Transform this to the format the rest of the code expects it to be */
6537 if (m->klass->valuetype) {
6538 this_buf = (guint8 *)g_alloca (mono_class_instance_size (m->klass));
6539 memcpy (this_buf, mono_object_unbox (this_arg), mono_class_instance_size (m->klass));
6541 } else if ((m->flags & METHOD_ATTRIBUTE_VIRTUAL) && !m->klass->valuetype && invoke->flags & INVOKE_FLAG_VIRTUAL) {
6543 DEBUG_PRINTF (1, "[%p] Error: invoke with INVOKE_FLAG_VIRTUAL flag set without this argument.\n", (gpointer) (gsize) mono_native_thread_id_get ());
6544 return ERR_INVALID_ARGUMENT;
6546 m = mono_object_get_virtual_method (this_arg, m);
6547 if (m->klass->valuetype) {
6548 this_buf = (guint8 *)g_alloca (mono_class_instance_size (m->klass));
6549 memcpy (this_buf, mono_object_unbox (this_arg), mono_class_instance_size (m->klass));
6553 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>");
6555 if (this_arg && this_arg->vtable->domain != domain)
6558 if (!m->klass->valuetype && !(m->flags & METHOD_ATTRIBUTE_STATIC) && !this_arg) {
6559 if (!strcmp (m->name, ".ctor")) {
6560 if (m->klass->flags & TYPE_ATTRIBUTE_ABSTRACT)
6561 return ERR_INVALID_ARGUMENT;
6564 this_arg = mono_object_new_checked (domain, m->klass, &error);
6565 mono_error_assert_ok (&error);
6568 return ERR_INVALID_ARGUMENT;
6572 if (this_arg && !obj_is_of_type (this_arg, &m->klass->byval_arg))
6573 return ERR_INVALID_ARGUMENT;
6575 nargs = decode_int (p, &p, end);
6576 if (nargs != sig->param_count)
6577 return ERR_INVALID_ARGUMENT;
6578 /* Use alloca to get gc tracking */
6579 arg_buf = (guint8 **)g_alloca (nargs * sizeof (gpointer));
6580 memset (arg_buf, 0, nargs * sizeof (gpointer));
6581 args = (gpointer *)g_alloca (nargs * sizeof (gpointer));
6582 for (i = 0; i < nargs; ++i) {
6583 if (MONO_TYPE_IS_REFERENCE (sig->params [i])) {
6584 err = decode_value (sig->params [i], domain, (guint8*)&args [i], p, &p, end);
6585 if (err != ERR_NONE)
6587 if (args [i] && ((MonoObject*)args [i])->vtable->domain != domain)
6590 if (sig->params [i]->byref) {
6591 arg_buf [i] = (guint8 *)g_alloca (sizeof (mgreg_t));
6592 *(gpointer*)arg_buf [i] = args [i];
6593 args [i] = arg_buf [i];
6596 arg_buf [i] = (guint8 *)g_alloca (mono_class_instance_size (mono_class_from_mono_type (sig->params [i])));
6597 err = decode_value (sig->params [i], domain, arg_buf [i], p, &p, end);
6598 if (err != ERR_NONE)
6600 args [i] = arg_buf [i];
6607 if (invoke->flags & INVOKE_FLAG_DISABLE_BREAKPOINTS)
6608 tls->disable_breakpoints = TRUE;
6610 tls->disable_breakpoints = FALSE;
6613 * Add an LMF frame to link the stack frames on the invoke method with our caller.
6615 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
6616 if (invoke->has_ctx) {
6619 lmf_addr = mono_get_lmf_addr ();
6622 memset (&ext, 0, sizeof (ext));
6623 mono_arch_init_lmf_ext (&ext, *lmf_addr);
6625 ext.debugger_invoke = TRUE;
6626 memcpy (&ext.ctx, &invoke->ctx, sizeof (MonoContext));
6628 mono_set_lmf ((MonoLMF*)&ext);
6632 mono_stopwatch_start (&watch);
6633 res = mono_runtime_try_invoke (m, m->klass->valuetype ? (gpointer) this_buf : (gpointer) this_arg, args, &exc, &error);
6634 if (exc == NULL && !mono_error_ok (&error)) {
6635 exc = (MonoObject*) mono_error_convert_to_exception (&error);
6637 mono_error_cleanup (&error); /* FIXME report error */
6639 mono_stopwatch_stop (&watch);
6640 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));
6642 buffer_add_byte (buf, 0);
6643 buffer_add_value (buf, &mono_defaults.object_class->byval_arg, &exc, domain);
6645 gboolean out_this = FALSE;
6646 gboolean out_args = FALSE;
6648 if ((invoke->flags & INVOKE_FLAG_RETURN_OUT_THIS) && CHECK_PROTOCOL_VERSION (2, 35))
6650 if ((invoke->flags & INVOKE_FLAG_RETURN_OUT_ARGS) && CHECK_PROTOCOL_VERSION (2, 35))
6652 buffer_add_byte (buf, 1 + (out_this ? 2 : 0) + (out_args ? 4 : 0));
6653 if (sig->ret->type == MONO_TYPE_VOID) {
6654 if (!strcmp (m->name, ".ctor")) {
6655 if (!m->klass->valuetype)
6656 buffer_add_value (buf, &mono_defaults.object_class->byval_arg, &this_arg, domain);
6658 buffer_add_value (buf, &m->klass->byval_arg, this_buf, domain);
6660 buffer_add_value (buf, &mono_defaults.void_class->byval_arg, NULL, domain);
6662 } else if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
6663 buffer_add_value (buf, sig->ret, &res, domain);
6664 } else if (mono_class_from_mono_type (sig->ret)->valuetype || sig->ret->type == MONO_TYPE_PTR || sig->ret->type == MONO_TYPE_FNPTR) {
6665 if (mono_class_is_nullable (mono_class_from_mono_type (sig->ret))) {
6666 MonoClass *k = mono_class_from_mono_type (sig->ret);
6667 guint8 *nullable_buf = (guint8 *)g_alloca (mono_class_value_size (k, NULL));
6669 g_assert (nullable_buf);
6670 mono_nullable_init (nullable_buf, res, k);
6671 buffer_add_value (buf, sig->ret, nullable_buf, domain);
6674 buffer_add_value (buf, sig->ret, mono_object_unbox (res), domain);
6680 /* Return the new value of the receiver after the call */
6681 buffer_add_value (buf, &m->klass->byval_arg, this_buf, domain);
6683 buffer_add_int (buf, nargs);
6684 for (i = 0; i < nargs; ++i) {
6685 if (MONO_TYPE_IS_REFERENCE (sig->params [i]))
6686 buffer_add_value (buf, sig->params [i], &args [i], domain);
6687 else if (sig->params [i]->byref)
6688 /* add_value () does an indirection */
6689 buffer_add_value (buf, sig->params [i], &arg_buf [i], domain);
6691 buffer_add_value (buf, sig->params [i], arg_buf [i], domain);
6696 tls->disable_breakpoints = FALSE;
6698 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
6699 if (invoke->has_ctx)
6700 mono_set_lmf ((MonoLMF *)(((gssize)ext.lmf.previous_lmf) & ~3));
6704 // FIXME: byref arguments
6712 * Invoke the method given by tls->pending_invoke in the current thread.
6715 invoke_method (void)
6717 DebuggerTlsData *tls;
6723 MonoContext restore_ctx;
6726 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
6730 * Store the `InvokeData *' in `tls->invoke' until we're done with
6731 * the invocation, so CMD_VM_ABORT_INVOKE can check it.
6734 mono_loader_lock ();
6736 invoke = tls->pending_invoke;
6738 tls->pending_invoke = NULL;
6740 invoke->last_invoke = tls->invoke;
6741 tls->invoke = invoke;
6743 mono_loader_unlock ();
6745 tls->frames_up_to_date = FALSE;
6751 for (mindex = 0; mindex < invoke->nmethods; ++mindex) {
6752 buffer_init (&buf, 128);
6755 /* Fail the other invokes as well */
6757 err = do_invoke_method (tls, &buf, invoke, p, &p);
6760 if (tls->abort_requested) {
6761 if (CHECK_PROTOCOL_VERSION (2, 42))
6762 err = ERR_INVOKE_ABORTED;
6765 /* Start suspending before sending the reply */
6766 if (mindex == invoke->nmethods - 1) {
6767 if (!(invoke->flags & INVOKE_FLAG_SINGLE_THREADED)) {
6768 for (i = 0; i < invoke->suspend_count; ++i)
6773 send_reply_packet (id, err, &buf);
6778 memcpy (&restore_ctx, &invoke->ctx, sizeof (MonoContext));
6780 if (invoke->has_ctx)
6781 save_thread_context (&restore_ctx);
6783 if (invoke->flags & INVOKE_FLAG_SINGLE_THREADED) {
6784 g_assert (tls->resume_count);
6785 tls->resume_count -= invoke->suspend_count;
6788 DEBUG_PRINTF (1, "[%p] Invoke finished (%d), resume_count = %d.\n", (gpointer) (gsize) mono_native_thread_id_get (), err, tls->resume_count);
6791 * Take the loader lock to avoid race conditions with CMD_VM_ABORT_INVOKE:
6793 * It is possible that ves_icall_System_Threading_Thread_Abort () was called
6794 * after the mono_runtime_invoke_checked() already returned, but it doesn't matter
6795 * because we reset the abort here.
6798 mono_loader_lock ();
6800 if (tls->abort_requested)
6801 mono_thread_internal_reset_abort (tls->thread);
6803 tls->invoke = tls->invoke->last_invoke;
6804 tls->abort_requested = FALSE;
6806 mono_loader_unlock ();
6815 is_really_suspended (gpointer key, gpointer value, gpointer user_data)
6817 MonoThread *thread = (MonoThread *)value;
6818 DebuggerTlsData *tls;
6821 mono_loader_lock ();
6822 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
6824 res = tls->really_suspended;
6825 mono_loader_unlock ();
6831 get_source_files_for_type (MonoClass *klass)
6833 gpointer iter = NULL;
6835 MonoDebugSourceInfo *sinfo;
6839 files = g_ptr_array_new ();
6841 while ((method = mono_class_get_methods (klass, &iter))) {
6842 MonoDebugMethodInfo *minfo = mono_debug_lookup_method (method);
6843 GPtrArray *source_file_list;
6846 mono_debug_get_seq_points (minfo, NULL, &source_file_list, NULL, NULL, NULL);
6847 for (j = 0; j < source_file_list->len; ++j) {
6848 sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, j);
6849 for (i = 0; i < files->len; ++i)
6850 if (!strcmp (g_ptr_array_index (files, i), sinfo->source_file))
6852 if (i == files->len)
6853 g_ptr_array_add (files, g_strdup (sinfo->source_file));
6855 g_ptr_array_free (source_file_list, TRUE);
6863 vm_commands (int command, int id, guint8 *p, guint8 *end, Buffer *buf)
6866 case CMD_VM_VERSION: {
6867 char *build_info, *version;
6869 build_info = mono_get_runtime_build_info ();
6870 version = g_strdup_printf ("mono %s", build_info);
6872 buffer_add_string (buf, version); /* vm version */
6873 buffer_add_int (buf, MAJOR_VERSION);
6874 buffer_add_int (buf, MINOR_VERSION);
6875 g_free (build_info);
6879 case CMD_VM_SET_PROTOCOL_VERSION: {
6880 major_version = decode_int (p, &p, end);
6881 minor_version = decode_int (p, &p, end);
6882 protocol_version_set = TRUE;
6883 DEBUG_PRINTF (1, "[dbg] Protocol version %d.%d, client protocol version %d.%d.\n", MAJOR_VERSION, MINOR_VERSION, major_version, minor_version);
6886 case CMD_VM_ALL_THREADS: {
6888 mono_loader_lock ();
6889 buffer_add_int (buf, mono_g_hash_table_size (tid_to_thread_obj));
6890 mono_g_hash_table_foreach (tid_to_thread_obj, add_thread, buf);
6891 mono_loader_unlock ();
6894 case CMD_VM_SUSPEND:
6896 wait_for_suspend ();
6899 if (suspend_count == 0)
6900 return ERR_NOT_SUSPENDED;
6902 clear_suspended_objs ();
6904 case CMD_VM_DISPOSE:
6905 /* Clear all event requests */
6906 mono_loader_lock ();
6907 while (event_requests->len > 0) {
6908 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, 0);
6910 clear_event_request (req->id, req->event_kind);
6912 mono_loader_unlock ();
6914 while (suspend_count > 0)
6916 disconnected = TRUE;
6917 vm_start_event_sent = FALSE;
6920 MonoInternalThread *thread;
6921 DebuggerTlsData *tls;
6922 #ifdef TRY_MANAGED_SYSTEM_ENVIRONMENT_EXIT
6923 MonoClass *env_class;
6925 MonoMethod *exit_method = NULL;
6929 exit_code = decode_int (p, &p, end);
6931 // FIXME: What if there is a VM_DEATH event request with SUSPEND_ALL ?
6933 /* Have to send a reply before exiting */
6934 send_reply_packet (id, 0, buf);
6936 /* Clear all event requests */
6937 mono_loader_lock ();
6938 while (event_requests->len > 0) {
6939 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, 0);
6941 clear_event_request (req->id, req->event_kind);
6943 mono_loader_unlock ();
6946 * The JDWP documentation says that the shutdown is not orderly. It doesn't
6947 * specify whenever a VM_DEATH event is sent. We currently do an orderly
6948 * shutdown by hijacking a thread to execute Environment.Exit (). This is
6949 * better than doing the shutdown ourselves, since it avoids various races.
6953 wait_for_suspend ();
6955 #ifdef TRY_MANAGED_SYSTEM_ENVIRONMENT_EXIT
6956 env_class = mono_class_try_load_from_name (mono_defaults.corlib, "System", "Environment");
6958 exit_method = mono_class_get_method_from_name (env_class, "Exit", 1);
6961 mono_loader_lock ();
6962 thread = (MonoInternalThread *)mono_g_hash_table_find (tid_to_thread, is_really_suspended, NULL);
6963 mono_loader_unlock ();
6965 if (thread && exit_method) {
6966 mono_loader_lock ();
6967 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
6968 mono_loader_unlock ();
6970 args = g_new0 (gpointer, 1);
6971 args [0] = g_malloc (sizeof (int));
6972 *(int*)(args [0]) = exit_code;
6974 tls->pending_invoke = g_new0 (InvokeData, 1);
6975 tls->pending_invoke->method = exit_method;
6976 tls->pending_invoke->args = args;
6977 tls->pending_invoke->nmethods = 1;
6979 while (suspend_count > 0)
6983 * No thread found, do it ourselves.
6984 * FIXME: This can race with normal shutdown etc.
6986 while (suspend_count > 0)
6989 if (!mono_runtime_try_shutdown ())
6992 mono_environment_exitcode_set (exit_code);
6994 /* Suspend all managed threads since the runtime is going away */
6995 DEBUG_PRINTF (1, "Suspending all threads...\n");
6996 mono_thread_suspend_all_other_threads ();
6997 DEBUG_PRINTF (1, "Shutting down the runtime...\n");
6998 mono_runtime_quit ();
6999 transport_close2 ();
7000 DEBUG_PRINTF (1, "Exiting...\n");
7006 case CMD_VM_INVOKE_METHOD:
7007 case CMD_VM_INVOKE_METHODS: {
7008 int objid = decode_objid (p, &p, end);
7010 DebuggerTlsData *tls;
7011 int i, count, flags, nmethods;
7014 err = get_object (objid, (MonoObject**)&thread);
7015 if (err != ERR_NONE)
7018 flags = decode_int (p, &p, end);
7020 if (command == CMD_VM_INVOKE_METHODS)
7021 nmethods = decode_int (p, &p, end);
7025 // Wait for suspending if it already started
7027 wait_for_suspend ();
7028 if (!is_suspended ())
7029 return ERR_NOT_SUSPENDED;
7031 mono_loader_lock ();
7032 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, THREAD_TO_INTERNAL (thread));
7033 mono_loader_unlock ();
7036 if (!tls->really_suspended)
7037 /* The thread is still running native code, can't do invokes */
7038 return ERR_NOT_SUSPENDED;
7041 * Store the invoke data into tls, the thread will execute it after it is
7044 if (tls->pending_invoke)
7045 return ERR_NOT_SUSPENDED;
7046 tls->pending_invoke = g_new0 (InvokeData, 1);
7047 tls->pending_invoke->id = id;
7048 tls->pending_invoke->flags = flags;
7049 tls->pending_invoke->p = (guint8 *)g_malloc (end - p);
7050 memcpy (tls->pending_invoke->p, p, end - p);
7051 tls->pending_invoke->endp = tls->pending_invoke->p + (end - p);
7052 tls->pending_invoke->suspend_count = suspend_count;
7053 tls->pending_invoke->nmethods = nmethods;
7055 if (flags & INVOKE_FLAG_SINGLE_THREADED) {
7056 resume_thread (THREAD_TO_INTERNAL (thread));
7059 count = suspend_count;
7060 for (i = 0; i < count; ++i)
7065 case CMD_VM_ABORT_INVOKE: {
7066 int objid = decode_objid (p, &p, end);
7068 DebuggerTlsData *tls;
7072 err = get_object (objid, (MonoObject**)&thread);
7073 if (err != ERR_NONE)
7076 invoke_id = decode_int (p, &p, end);
7078 mono_loader_lock ();
7079 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, THREAD_TO_INTERNAL (thread));
7082 if (tls->abort_requested) {
7083 DEBUG_PRINTF (1, "Abort already requested.\n");
7084 mono_loader_unlock ();
7089 * Check whether we're still inside the mono_runtime_invoke_checked() and that it's
7090 * actually the correct invocation.
7092 * Careful, we do not stop the thread that's doing the invocation, so we can't
7093 * inspect its stack. However, invoke_method() also acquires the loader lock
7094 * when it's done, so we're safe here.
7098 if (!tls->invoke || (tls->invoke->id != invoke_id)) {
7099 mono_loader_unlock ();
7100 return ERR_NO_INVOCATION;
7103 tls->abort_requested = TRUE;
7105 ves_icall_System_Threading_Thread_Abort (THREAD_TO_INTERNAL (thread), NULL);
7106 mono_loader_unlock ();
7110 case CMD_VM_SET_KEEPALIVE: {
7111 int timeout = decode_int (p, &p, end);
7112 agent_config.keepalive = timeout;
7114 #ifndef DISABLE_SOCKET_TRANSPORT
7121 case CMD_VM_GET_TYPES_FOR_SOURCE_FILE: {
7122 GHashTableIter iter, kiter;
7127 char *fname, *basename;
7128 gboolean ignore_case;
7129 GSList *class_list, *l;
7130 GPtrArray *res_classes, *res_domains;
7132 fname = decode_string (p, &p, end);
7133 ignore_case = decode_byte (p, &p, end);
7135 basename = dbg_path_get_basename (fname);
7137 res_classes = g_ptr_array_new ();
7138 res_domains = g_ptr_array_new ();
7140 mono_loader_lock ();
7141 g_hash_table_iter_init (&iter, domains);
7142 while (g_hash_table_iter_next (&iter, NULL, (void**)&domain)) {
7143 AgentDomainInfo *info = (AgentDomainInfo *)domain_jit_info (domain)->agent_info;
7145 /* Update 'source_file_to_class' cache */
7146 g_hash_table_iter_init (&kiter, info->loaded_classes);
7147 while (g_hash_table_iter_next (&kiter, NULL, (void**)&klass)) {
7148 if (!g_hash_table_lookup (info->source_files, klass)) {
7149 files = get_source_files_for_type (klass);
7150 g_hash_table_insert (info->source_files, klass, files);
7152 for (i = 0; i < files->len; ++i) {
7153 char *s = (char *)g_ptr_array_index (files, i);
7154 char *s2 = dbg_path_get_basename (s);
7157 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class, s2);
7159 class_list = g_slist_prepend (class_list, klass);
7160 g_hash_table_insert (info->source_file_to_class, g_strdup (s2), class_list);
7162 class_list = g_slist_prepend (class_list, klass);
7163 g_hash_table_insert (info->source_file_to_class, s2, class_list);
7166 /* The _ignorecase hash contains the lowercase path */
7167 s3 = strdup_tolower (s2);
7168 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class_ignorecase, s3);
7170 class_list = g_slist_prepend (class_list, klass);
7171 g_hash_table_insert (info->source_file_to_class_ignorecase, g_strdup (s3), class_list);
7173 class_list = g_slist_prepend (class_list, klass);
7174 g_hash_table_insert (info->source_file_to_class_ignorecase, s3, class_list);
7186 s = strdup_tolower (basename);
7187 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class_ignorecase, s);
7190 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class, basename);
7193 for (l = class_list; l; l = l->next) {
7194 klass = (MonoClass *)l->data;
7196 g_ptr_array_add (res_classes, klass);
7197 g_ptr_array_add (res_domains, domain);
7200 mono_loader_unlock ();
7205 buffer_add_int (buf, res_classes->len);
7206 for (i = 0; i < res_classes->len; ++i)
7207 buffer_add_typeid (buf, (MonoDomain *)g_ptr_array_index (res_domains, i), (MonoClass *)g_ptr_array_index (res_classes, i));
7208 g_ptr_array_free (res_classes, TRUE);
7209 g_ptr_array_free (res_domains, TRUE);
7212 case CMD_VM_GET_TYPES: {
7213 GHashTableIter iter;
7217 gboolean ignore_case;
7218 GPtrArray *res_classes, *res_domains;
7219 MonoTypeNameParse info;
7221 name = decode_string (p, &p, end);
7222 ignore_case = decode_byte (p, &p, end);
7224 if (!mono_reflection_parse_type (name, &info)) {
7226 mono_reflection_free_type_info (&info);
7227 return ERR_INVALID_ARGUMENT;
7230 res_classes = g_ptr_array_new ();
7231 res_domains = g_ptr_array_new ();
7233 mono_loader_lock ();
7234 g_hash_table_iter_init (&iter, domains);
7235 while (g_hash_table_iter_next (&iter, NULL, (void**)&domain)) {
7237 gboolean type_resolve;
7241 mono_domain_assemblies_lock (domain);
7242 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
7243 ass = (MonoAssembly *)tmp->data;
7246 type_resolve = TRUE;
7247 t = mono_reflection_get_type (ass->image, &info, ignore_case, &type_resolve);
7249 g_ptr_array_add (res_classes, mono_type_get_class (t));
7250 g_ptr_array_add (res_domains, domain);
7254 mono_domain_assemblies_unlock (domain);
7256 mono_loader_unlock ();
7259 mono_reflection_free_type_info (&info);
7261 buffer_add_int (buf, res_classes->len);
7262 for (i = 0; i < res_classes->len; ++i)
7263 buffer_add_typeid (buf, (MonoDomain *)g_ptr_array_index (res_domains, i), (MonoClass *)g_ptr_array_index (res_classes, i));
7264 g_ptr_array_free (res_classes, TRUE);
7265 g_ptr_array_free (res_domains, TRUE);
7268 case CMD_VM_START_BUFFERING:
7269 case CMD_VM_STOP_BUFFERING:
7270 /* Handled in the main loop */
7273 return ERR_NOT_IMPLEMENTED;
7280 event_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7286 case CMD_EVENT_REQUEST_SET: {
7288 int i, event_kind, suspend_policy, nmodifiers;
7292 MonoThread *step_thread;
7293 int step_thread_id = 0;
7294 StepDepth depth = STEP_DEPTH_INTO;
7295 StepSize size = STEP_SIZE_MIN;
7296 StepFilter filter = STEP_FILTER_NONE;
7300 event_kind = decode_byte (p, &p, end);
7301 suspend_policy = decode_byte (p, &p, end);
7302 nmodifiers = decode_byte (p, &p, end);
7304 req = (EventRequest *)g_malloc0 (sizeof (EventRequest) + (nmodifiers * sizeof (Modifier)));
7305 req->id = InterlockedIncrement (&event_request_id);
7306 req->event_kind = event_kind;
7307 req->suspend_policy = suspend_policy;
7308 req->nmodifiers = nmodifiers;
7311 for (i = 0; i < nmodifiers; ++i) {
7312 mod = (ModifierKind)decode_byte (p, &p, end);
7314 req->modifiers [i].kind = mod;
7315 if (mod == MOD_KIND_COUNT) {
7316 req->modifiers [i].data.count = decode_int (p, &p, end);
7317 } else if (mod == MOD_KIND_LOCATION_ONLY) {
7318 method = decode_methodid (p, &p, end, &domain, &err);
7319 if (err != ERR_NONE)
7321 location = decode_long (p, &p, end);
7322 } else if (mod == MOD_KIND_STEP) {
7323 step_thread_id = decode_id (p, &p, end);
7324 size = (StepSize)decode_int (p, &p, end);
7325 depth = (StepDepth)decode_int (p, &p, end);
7326 if (CHECK_PROTOCOL_VERSION (2, 16))
7327 filter = (StepFilter)decode_int (p, &p, end);
7328 req->modifiers [i].data.filter = filter;
7329 if (!CHECK_PROTOCOL_VERSION (2, 26) && (req->modifiers [i].data.filter & STEP_FILTER_DEBUGGER_HIDDEN))
7330 /* Treat STEP_THOUGH the same as HIDDEN */
7331 req->modifiers [i].data.filter = (StepFilter)(req->modifiers [i].data.filter | STEP_FILTER_DEBUGGER_STEP_THROUGH);
7332 } else if (mod == MOD_KIND_THREAD_ONLY) {
7333 int id = decode_id (p, &p, end);
7335 err = get_object (id, (MonoObject**)&req->modifiers [i].data.thread);
7336 if (err != ERR_NONE) {
7340 } else if (mod == MOD_KIND_EXCEPTION_ONLY) {
7341 MonoClass *exc_class = decode_typeid (p, &p, end, &domain, &err);
7343 if (err != ERR_NONE)
7345 req->modifiers [i].caught = decode_byte (p, &p, end);
7346 req->modifiers [i].uncaught = decode_byte (p, &p, end);
7347 if (CHECK_PROTOCOL_VERSION (2, 25))
7348 req->modifiers [i].subclasses = decode_byte (p, &p, end);
7350 req->modifiers [i].subclasses = TRUE;
7351 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" : "");
7353 req->modifiers [i].data.exc_class = exc_class;
7355 if (!mono_class_is_assignable_from (mono_defaults.exception_class, exc_class)) {
7357 return ERR_INVALID_ARGUMENT;
7360 } else if (mod == MOD_KIND_ASSEMBLY_ONLY) {
7361 int n = decode_int (p, &p, end);
7364 req->modifiers [i].data.assemblies = g_new0 (MonoAssembly*, n);
7365 for (j = 0; j < n; ++j) {
7366 req->modifiers [i].data.assemblies [j] = decode_assemblyid (p, &p, end, &domain, &err);
7367 if (err != ERR_NONE) {
7368 g_free (req->modifiers [i].data.assemblies);
7372 } else if (mod == MOD_KIND_SOURCE_FILE_ONLY) {
7373 int n = decode_int (p, &p, end);
7376 modifier = &req->modifiers [i];
7377 modifier->data.source_files = g_hash_table_new (g_str_hash, g_str_equal);
7378 for (j = 0; j < n; ++j) {
7379 char *s = decode_string (p, &p, end);
7383 s2 = strdup_tolower (s);
7384 g_hash_table_insert (modifier->data.source_files, s2, s2);
7388 } else if (mod == MOD_KIND_TYPE_NAME_ONLY) {
7389 int n = decode_int (p, &p, end);
7392 modifier = &req->modifiers [i];
7393 modifier->data.type_names = g_hash_table_new (g_str_hash, g_str_equal);
7394 for (j = 0; j < n; ++j) {
7395 char *s = decode_string (p, &p, end);
7398 g_hash_table_insert (modifier->data.type_names, s, s);
7402 return ERR_NOT_IMPLEMENTED;
7406 if (req->event_kind == EVENT_KIND_BREAKPOINT) {
7409 req->info = set_breakpoint (method, location, req, &error);
7410 if (!mono_error_ok (&error)) {
7412 DEBUG_PRINTF (1, "[dbg] Failed to set breakpoint: %s\n", mono_error_get_message (&error));
7413 mono_error_cleanup (&error);
7414 return ERR_NO_SEQ_POINT_AT_IL_OFFSET;
7416 } else if (req->event_kind == EVENT_KIND_STEP) {
7417 g_assert (step_thread_id);
7419 err = get_object (step_thread_id, (MonoObject**)&step_thread);
7420 if (err != ERR_NONE) {
7425 err = ss_create (THREAD_TO_INTERNAL (step_thread), size, depth, filter, req);
7426 if (err != ERR_NONE) {
7430 } else if (req->event_kind == EVENT_KIND_METHOD_ENTRY) {
7431 req->info = set_breakpoint (NULL, METHOD_ENTRY_IL_OFFSET, req, NULL);
7432 } else if (req->event_kind == EVENT_KIND_METHOD_EXIT) {
7433 req->info = set_breakpoint (NULL, METHOD_EXIT_IL_OFFSET, req, NULL);
7434 } else if (req->event_kind == EVENT_KIND_EXCEPTION) {
7435 } else if (req->event_kind == EVENT_KIND_TYPE_LOAD) {
7437 if (req->nmodifiers) {
7439 return ERR_NOT_IMPLEMENTED;
7443 mono_loader_lock ();
7444 g_ptr_array_add (event_requests, req);
7446 if (agent_config.defer) {
7447 /* Transmit cached data to the client on receipt of the event request */
7448 switch (req->event_kind) {
7449 case EVENT_KIND_APPDOMAIN_CREATE:
7450 /* Emit load events for currently loaded domains */
7451 g_hash_table_foreach (domains, emit_appdomain_load, NULL);
7453 case EVENT_KIND_ASSEMBLY_LOAD:
7454 /* Emit load events for currently loaded assemblies */
7455 mono_assembly_foreach (emit_assembly_load, NULL);
7457 case EVENT_KIND_THREAD_START:
7458 /* Emit start events for currently started threads */
7459 mono_g_hash_table_foreach (tid_to_thread, emit_thread_start, NULL);
7461 case EVENT_KIND_TYPE_LOAD:
7462 /* Emit type load events for currently loaded types */
7463 mono_domain_foreach (send_types_for_domain, NULL);
7469 mono_loader_unlock ();
7471 buffer_add_int (buf, req->id);
7474 case CMD_EVENT_REQUEST_CLEAR: {
7475 int etype = decode_byte (p, &p, end);
7476 int req_id = decode_int (p, &p, end);
7478 // FIXME: Make a faster mapping from req_id to request
7479 mono_loader_lock ();
7480 clear_event_request (req_id, etype);
7481 mono_loader_unlock ();
7484 case CMD_EVENT_REQUEST_CLEAR_ALL_BREAKPOINTS: {
7487 mono_loader_lock ();
7489 while (i < event_requests->len) {
7490 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
7492 if (req->event_kind == EVENT_KIND_BREAKPOINT) {
7493 clear_breakpoint ((MonoBreakpoint *)req->info);
7495 g_ptr_array_remove_index_fast (event_requests, i);
7501 mono_loader_unlock ();
7505 return ERR_NOT_IMPLEMENTED;
7512 domain_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7518 case CMD_APPDOMAIN_GET_ROOT_DOMAIN: {
7519 buffer_add_domainid (buf, mono_get_root_domain ());
7522 case CMD_APPDOMAIN_GET_FRIENDLY_NAME: {
7523 domain = decode_domainid (p, &p, end, NULL, &err);
7524 if (err != ERR_NONE)
7526 buffer_add_string (buf, domain->friendly_name);
7529 case CMD_APPDOMAIN_GET_ASSEMBLIES: {
7534 domain = decode_domainid (p, &p, end, NULL, &err);
7535 if (err != ERR_NONE)
7537 mono_loader_lock ();
7539 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
7542 buffer_add_int (buf, count);
7543 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
7544 ass = (MonoAssembly *)tmp->data;
7545 buffer_add_assemblyid (buf, domain, ass);
7547 mono_loader_unlock ();
7550 case CMD_APPDOMAIN_GET_ENTRY_ASSEMBLY: {
7551 domain = decode_domainid (p, &p, end, NULL, &err);
7552 if (err != ERR_NONE)
7555 buffer_add_assemblyid (buf, domain, domain->entry_assembly);
7558 case CMD_APPDOMAIN_GET_CORLIB: {
7559 domain = decode_domainid (p, &p, end, NULL, &err);
7560 if (err != ERR_NONE)
7563 buffer_add_assemblyid (buf, domain, domain->domain->mbr.obj.vtable->klass->image->assembly);
7566 case CMD_APPDOMAIN_CREATE_STRING: {
7570 domain = decode_domainid (p, &p, end, NULL, &err);
7571 if (err != ERR_NONE)
7573 s = decode_string (p, &p, end);
7575 o = mono_string_new (domain, s);
7576 buffer_add_objid (buf, (MonoObject*)o);
7579 case CMD_APPDOMAIN_CREATE_BOXED_VALUE: {
7582 MonoDomain *domain2;
7585 domain = decode_domainid (p, &p, end, NULL, &err);
7586 if (err != ERR_NONE)
7588 klass = decode_typeid (p, &p, end, &domain2, &err);
7589 if (err != ERR_NONE)
7593 g_assert (domain == domain2);
7595 o = mono_object_new_checked (domain, klass, &error);
7596 mono_error_assert_ok (&error);
7598 err = decode_value (&klass->byval_arg, domain, (guint8 *)mono_object_unbox (o), p, &p, end);
7599 if (err != ERR_NONE)
7602 buffer_add_objid (buf, o);
7606 return ERR_NOT_IMPLEMENTED;
7613 assembly_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7619 ass = decode_assemblyid (p, &p, end, &domain, &err);
7620 if (err != ERR_NONE)
7624 case CMD_ASSEMBLY_GET_LOCATION: {
7625 buffer_add_string (buf, mono_image_get_filename (ass->image));
7628 case CMD_ASSEMBLY_GET_ENTRY_POINT: {
7632 if (ass->image->dynamic) {
7633 buffer_add_id (buf, 0);
7635 token = mono_image_get_entry_point (ass->image);
7637 buffer_add_id (buf, 0);
7640 m = mono_get_method_checked (ass->image, token, NULL, NULL, &error);
7642 mono_error_cleanup (&error); /* FIXME don't swallow the error */
7643 buffer_add_methodid (buf, domain, m);
7648 case CMD_ASSEMBLY_GET_MANIFEST_MODULE: {
7649 buffer_add_moduleid (buf, domain, ass->image);
7652 case CMD_ASSEMBLY_GET_OBJECT: {
7654 MonoObject *o = (MonoObject*)mono_assembly_get_object_checked (domain, ass, &error);
7656 mono_error_cleanup (&error); /* FIXME don't swallow the error */
7657 return ERR_INVALID_OBJECT;
7659 buffer_add_objid (buf, o);
7662 case CMD_ASSEMBLY_GET_TYPE: {
7663 char *s = decode_string (p, &p, end);
7664 gboolean ignorecase = decode_byte (p, &p, end);
7665 MonoTypeNameParse info;
7667 gboolean type_resolve, res;
7668 MonoDomain *d = mono_domain_get ();
7670 /* This is needed to be able to find referenced assemblies */
7671 res = mono_domain_set (domain, FALSE);
7674 if (!mono_reflection_parse_type (s, &info)) {
7677 if (info.assembly.name)
7679 t = mono_reflection_get_type (ass->image, &info, ignorecase, &type_resolve);
7681 buffer_add_typeid (buf, domain, t ? mono_class_from_mono_type (t) : NULL);
7682 mono_reflection_free_type_info (&info);
7685 mono_domain_set (d, TRUE);
7689 case CMD_ASSEMBLY_GET_NAME: {
7691 MonoAssembly *mass = ass;
7693 name = g_strdup_printf (
7694 "%s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
7696 mass->aname.major, mass->aname.minor, mass->aname.build, mass->aname.revision,
7697 mass->aname.culture && *mass->aname.culture? mass->aname.culture: "neutral",
7698 mass->aname.public_key_token [0] ? (char *)mass->aname.public_key_token : "null",
7699 (mass->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
7701 buffer_add_string (buf, name);
7706 return ERR_NOT_IMPLEMENTED;
7713 module_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7719 case CMD_MODULE_GET_INFO: {
7720 MonoImage *image = decode_moduleid (p, &p, end, &domain, &err);
7723 basename = g_path_get_basename (image->name);
7724 buffer_add_string (buf, basename); // name
7725 buffer_add_string (buf, image->module_name); // scopename
7726 buffer_add_string (buf, image->name); // fqname
7727 buffer_add_string (buf, mono_image_get_guid (image)); // guid
7728 buffer_add_assemblyid (buf, domain, image->assembly); // assembly
7733 return ERR_NOT_IMPLEMENTED;
7740 field_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7746 case CMD_FIELD_GET_INFO: {
7747 MonoClassField *f = decode_fieldid (p, &p, end, &domain, &err);
7749 buffer_add_string (buf, f->name);
7750 buffer_add_typeid (buf, domain, f->parent);
7751 buffer_add_typeid (buf, domain, mono_class_from_mono_type (f->type));
7752 buffer_add_int (buf, f->type->attrs);
7756 return ERR_NOT_IMPLEMENTED;
7763 buffer_add_cattr_arg (Buffer *buf, MonoType *t, MonoDomain *domain, MonoObject *val)
7765 if (val && val->vtable->klass == mono_defaults.monotype_class) {
7766 /* Special case these so the client doesn't have to handle Type objects */
7768 buffer_add_byte (buf, VALUE_TYPE_ID_TYPE);
7769 buffer_add_typeid (buf, domain, mono_class_from_mono_type (((MonoReflectionType*)val)->type));
7770 } else if (MONO_TYPE_IS_REFERENCE (t))
7771 buffer_add_value (buf, t, &val, domain);
7773 buffer_add_value (buf, t, mono_object_unbox (val), domain);
7777 buffer_add_cattrs (Buffer *buf, MonoDomain *domain, MonoImage *image, MonoClass *attr_klass, MonoCustomAttrInfo *cinfo)
7783 buffer_add_int (buf, 0);
7787 for (i = 0; i < cinfo->num_attrs; ++i) {
7788 if (!attr_klass || mono_class_has_parent (cinfo->attrs [i].ctor->klass, attr_klass))
7791 buffer_add_int (buf, nattrs);
7793 for (i = 0; i < cinfo->num_attrs; ++i) {
7794 MonoCustomAttrEntry *attr = &cinfo->attrs [i];
7795 if (!attr_klass || mono_class_has_parent (attr->ctor->klass, attr_klass)) {
7796 MonoArray *typed_args, *named_args;
7798 CattrNamedArg *arginfo = NULL;
7801 mono_reflection_create_custom_attr_data_args (image, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7802 if (!mono_error_ok (&error)) {
7803 DEBUG_PRINTF (2, "[dbg] mono_reflection_create_custom_attr_data_args () failed with: '%s'\n", mono_error_get_message (&error));
7804 mono_error_cleanup (&error);
7805 return ERR_LOADER_ERROR;
7808 buffer_add_methodid (buf, domain, attr->ctor);
7812 buffer_add_int (buf, mono_array_length (typed_args));
7813 for (j = 0; j < mono_array_length (typed_args); ++j) {
7814 MonoObject *val = mono_array_get (typed_args, MonoObject*, j);
7816 t = mono_method_signature (attr->ctor)->params [j];
7818 buffer_add_cattr_arg (buf, t, domain, val);
7821 buffer_add_int (buf, 0);
7826 buffer_add_int (buf, mono_array_length (named_args));
7828 for (j = 0; j < mono_array_length (named_args); ++j) {
7829 MonoObject *val = mono_array_get (named_args, MonoObject*, j);
7831 if (arginfo [j].prop) {
7832 buffer_add_byte (buf, 0x54);
7833 buffer_add_propertyid (buf, domain, arginfo [j].prop);
7834 } else if (arginfo [j].field) {
7835 buffer_add_byte (buf, 0x53);
7836 buffer_add_fieldid (buf, domain, arginfo [j].field);
7838 g_assert_not_reached ();
7841 buffer_add_cattr_arg (buf, arginfo [j].type, domain, val);
7844 buffer_add_int (buf, 0);
7853 /* FIXME: Code duplication with icall.c */
7855 collect_interfaces (MonoClass *klass, GHashTable *ifaces, MonoError *error)
7860 mono_class_setup_interfaces (klass, error);
7861 if (!mono_error_ok (error))
7864 for (i = 0; i < klass->interface_count; i++) {
7865 ic = klass->interfaces [i];
7866 g_hash_table_insert (ifaces, ic, ic);
7868 collect_interfaces (ic, ifaces, error);
7869 if (!mono_error_ok (error))
7875 type_commands_internal (int command, MonoClass *klass, MonoDomain *domain, guint8 *p, guint8 *end, Buffer *buf)
7887 case CMD_TYPE_GET_INFO: {
7888 buffer_add_string (buf, klass->name_space);
7889 buffer_add_string (buf, klass->name);
7891 name = mono_type_get_name_full (&klass->byval_arg, MONO_TYPE_NAME_FORMAT_FULL_NAME);
7892 buffer_add_string (buf, name);
7894 buffer_add_assemblyid (buf, domain, klass->image->assembly);
7895 buffer_add_moduleid (buf, domain, klass->image);
7896 buffer_add_typeid (buf, domain, klass->parent);
7897 if (klass->rank || klass->byval_arg.type == MONO_TYPE_PTR)
7898 buffer_add_typeid (buf, domain, klass->element_class);
7900 buffer_add_id (buf, 0);
7901 buffer_add_int (buf, klass->type_token);
7902 buffer_add_byte (buf, klass->rank);
7903 buffer_add_int (buf, klass->flags);
7905 type = &klass->byval_arg;
7906 // FIXME: Can't decide whenever a class represents a byref type
7909 if (type->type == MONO_TYPE_PTR)
7911 if (!type->byref && (((type->type >= MONO_TYPE_BOOLEAN) && (type->type <= MONO_TYPE_R8)) || (type->type == MONO_TYPE_I) || (type->type == MONO_TYPE_U)))
7913 if (type->type == MONO_TYPE_VALUETYPE)
7915 if (klass->enumtype)
7917 if (klass->generic_container)
7919 if (klass->generic_container || klass->generic_class)
7921 buffer_add_byte (buf, b);
7924 while ((nested = mono_class_get_nested_types (klass, &iter)))
7926 buffer_add_int (buf, nnested);
7928 while ((nested = mono_class_get_nested_types (klass, &iter)))
7929 buffer_add_typeid (buf, domain, nested);
7930 if (CHECK_PROTOCOL_VERSION (2, 12)) {
7931 if (klass->generic_container)
7932 buffer_add_typeid (buf, domain, klass);
7933 else if (klass->generic_class)
7934 buffer_add_typeid (buf, domain, klass->generic_class->container_class);
7936 buffer_add_id (buf, 0);
7938 if (CHECK_PROTOCOL_VERSION (2, 15)) {
7941 if (klass->generic_class) {
7942 MonoGenericInst *inst = klass->generic_class->context.class_inst;
7944 count = inst->type_argc;
7945 buffer_add_int (buf, count);
7946 for (i = 0; i < count; i++)
7947 buffer_add_typeid (buf, domain, mono_class_from_mono_type (inst->type_argv [i]));
7948 } else if (klass->generic_container) {
7949 MonoGenericContainer *container = klass->generic_container;
7952 count = container->type_argc;
7953 buffer_add_int (buf, count);
7954 for (i = 0; i < count; i++) {
7955 pklass = mono_class_from_generic_parameter_internal (mono_generic_container_get_param (container, i));
7956 buffer_add_typeid (buf, domain, pklass);
7959 buffer_add_int (buf, 0);
7964 case CMD_TYPE_GET_METHODS: {
7967 gpointer iter = NULL;
7970 mono_class_setup_methods (klass);
7972 nmethods = mono_class_num_methods (klass);
7974 buffer_add_int (buf, nmethods);
7976 while ((m = mono_class_get_methods (klass, &iter))) {
7977 buffer_add_methodid (buf, domain, m);
7980 g_assert (i == nmethods);
7983 case CMD_TYPE_GET_FIELDS: {
7986 gpointer iter = NULL;
7989 nfields = mono_class_num_fields (klass);
7991 buffer_add_int (buf, nfields);
7993 while ((f = mono_class_get_fields (klass, &iter))) {
7994 buffer_add_fieldid (buf, domain, f);
7995 buffer_add_string (buf, f->name);
7996 buffer_add_typeid (buf, domain, mono_class_from_mono_type (f->type));
7997 buffer_add_int (buf, f->type->attrs);
8000 g_assert (i == nfields);
8003 case CMD_TYPE_GET_PROPERTIES: {
8006 gpointer iter = NULL;
8009 nprops = mono_class_num_properties (klass);
8011 buffer_add_int (buf, nprops);
8013 while ((p = mono_class_get_properties (klass, &iter))) {
8014 buffer_add_propertyid (buf, domain, p);
8015 buffer_add_string (buf, p->name);
8016 buffer_add_methodid (buf, domain, p->get);
8017 buffer_add_methodid (buf, domain, p->set);
8018 buffer_add_int (buf, p->attrs);
8021 g_assert (i == nprops);
8024 case CMD_TYPE_GET_CATTRS: {
8025 MonoClass *attr_klass;
8026 MonoCustomAttrInfo *cinfo;
8028 attr_klass = decode_typeid (p, &p, end, NULL, &err);
8029 /* attr_klass can be NULL */
8030 if (err != ERR_NONE)
8033 cinfo = mono_custom_attrs_from_class (klass);
8035 err = buffer_add_cattrs (buf, domain, klass->image, attr_klass, cinfo);
8036 if (err != ERR_NONE)
8040 case CMD_TYPE_GET_FIELD_CATTRS: {
8041 MonoClass *attr_klass;
8042 MonoCustomAttrInfo *cinfo;
8043 MonoClassField *field;
8045 field = decode_fieldid (p, &p, end, NULL, &err);
8046 if (err != ERR_NONE)
8048 attr_klass = decode_typeid (p, &p, end, NULL, &err);
8049 if (err != ERR_NONE)
8052 cinfo = mono_custom_attrs_from_field (klass, field);
8054 err = buffer_add_cattrs (buf, domain, klass->image, attr_klass, cinfo);
8055 if (err != ERR_NONE)
8059 case CMD_TYPE_GET_PROPERTY_CATTRS: {
8060 MonoClass *attr_klass;
8061 MonoCustomAttrInfo *cinfo;
8064 prop = decode_propertyid (p, &p, end, NULL, &err);
8065 if (err != ERR_NONE)
8067 attr_klass = decode_typeid (p, &p, end, NULL, &err);
8068 if (err != ERR_NONE)
8071 cinfo = mono_custom_attrs_from_property (klass, prop);
8073 err = buffer_add_cattrs (buf, domain, klass->image, attr_klass, cinfo);
8074 if (err != ERR_NONE)
8078 case CMD_TYPE_GET_VALUES:
8079 case CMD_TYPE_GET_VALUES_2: {
8086 MonoThread *thread_obj;
8087 MonoInternalThread *thread = NULL;
8088 guint32 special_static_type;
8090 if (command == CMD_TYPE_GET_VALUES_2) {
8091 int objid = decode_objid (p, &p, end);
8094 err = get_object (objid, (MonoObject**)&thread_obj);
8095 if (err != ERR_NONE)
8098 thread = THREAD_TO_INTERNAL (thread_obj);
8101 len = decode_int (p, &p, end);
8102 for (i = 0; i < len; ++i) {
8103 f = decode_fieldid (p, &p, end, NULL, &err);
8104 if (err != ERR_NONE)
8107 if (!(f->type->attrs & FIELD_ATTRIBUTE_STATIC))
8108 return ERR_INVALID_FIELDID;
8109 special_static_type = mono_class_field_get_special_static_type (f);
8110 if (special_static_type != SPECIAL_STATIC_NONE) {
8111 if (!(thread && special_static_type == SPECIAL_STATIC_THREAD))
8112 return ERR_INVALID_FIELDID;
8115 /* Check that the field belongs to the object */
8117 for (k = klass; k; k = k->parent) {
8118 if (k == f->parent) {
8124 return ERR_INVALID_FIELDID;
8126 vtable = mono_class_vtable (domain, f->parent);
8127 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
8128 mono_field_static_get_value_for_thread (thread ? thread : mono_thread_internal_current (), vtable, f, val);
8129 buffer_add_value (buf, f->type, val, domain);
8134 case CMD_TYPE_SET_VALUES: {
8142 len = decode_int (p, &p, end);
8143 for (i = 0; i < len; ++i) {
8144 f = decode_fieldid (p, &p, end, NULL, &err);
8145 if (err != ERR_NONE)
8148 if (!(f->type->attrs & FIELD_ATTRIBUTE_STATIC))
8149 return ERR_INVALID_FIELDID;
8150 if (mono_class_field_is_special_static (f))
8151 return ERR_INVALID_FIELDID;
8153 /* Check that the field belongs to the object */
8155 for (k = klass; k; k = k->parent) {
8156 if (k == f->parent) {
8162 return ERR_INVALID_FIELDID;
8164 // FIXME: Check for literal/const
8166 vtable = mono_class_vtable (domain, f->parent);
8167 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
8168 err = decode_value (f->type, domain, val, p, &p, end);
8169 if (err != ERR_NONE) {
8173 if (MONO_TYPE_IS_REFERENCE (f->type))
8174 mono_field_static_set_value (vtable, f, *(gpointer*)val);
8176 mono_field_static_set_value (vtable, f, val);
8181 case CMD_TYPE_GET_OBJECT: {
8182 MonoObject *o = (MonoObject*)mono_type_get_object_checked (domain, &klass->byval_arg, &error);
8183 mono_error_raise_exception (&error); /* FIXME don't raise here */
8184 buffer_add_objid (buf, o);
8187 case CMD_TYPE_GET_SOURCE_FILES:
8188 case CMD_TYPE_GET_SOURCE_FILES_2: {
8189 char *source_file, *base;
8193 files = get_source_files_for_type (klass);
8195 buffer_add_int (buf, files->len);
8196 for (i = 0; i < files->len; ++i) {
8197 source_file = (char *)g_ptr_array_index (files, i);
8198 if (command == CMD_TYPE_GET_SOURCE_FILES_2) {
8199 buffer_add_string (buf, source_file);
8201 base = dbg_path_get_basename (source_file);
8202 buffer_add_string (buf, base);
8205 g_free (source_file);
8207 g_ptr_array_free (files, TRUE);
8210 case CMD_TYPE_IS_ASSIGNABLE_FROM: {
8211 MonoClass *oklass = decode_typeid (p, &p, end, NULL, &err);
8213 if (err != ERR_NONE)
8215 if (mono_class_is_assignable_from (klass, oklass))
8216 buffer_add_byte (buf, 1);
8218 buffer_add_byte (buf, 0);
8221 case CMD_TYPE_GET_METHODS_BY_NAME_FLAGS: {
8222 char *name = decode_string (p, &p, end);
8223 int i, flags = decode_int (p, &p, end);
8224 MonoException *ex = NULL;
8225 GPtrArray *array = mono_class_get_methods_by_name (klass, name, flags & ~BINDING_FLAGS_IGNORE_CASE, (flags & BINDING_FLAGS_IGNORE_CASE) != 0, TRUE, &ex);
8228 return ERR_LOADER_ERROR;
8229 buffer_add_int (buf, array->len);
8230 for (i = 0; i < array->len; ++i) {
8231 MonoMethod *method = (MonoMethod *)g_ptr_array_index (array, i);
8232 buffer_add_methodid (buf, domain, method);
8235 g_ptr_array_free (array, TRUE);
8239 case CMD_TYPE_GET_INTERFACES: {
8241 GHashTable *iface_hash = g_hash_table_new (NULL, NULL);
8242 MonoClass *tclass, *iface;
8243 GHashTableIter iter;
8247 for (parent = tclass; parent; parent = parent->parent) {
8248 mono_class_setup_interfaces (parent, &error);
8249 if (!mono_error_ok (&error))
8250 return ERR_LOADER_ERROR;
8251 collect_interfaces (parent, iface_hash, &error);
8252 if (!mono_error_ok (&error))
8253 return ERR_LOADER_ERROR;
8256 buffer_add_int (buf, g_hash_table_size (iface_hash));
8258 g_hash_table_iter_init (&iter, iface_hash);
8259 while (g_hash_table_iter_next (&iter, NULL, (void**)&iface))
8260 buffer_add_typeid (buf, domain, iface);
8261 g_hash_table_destroy (iface_hash);
8264 case CMD_TYPE_GET_INTERFACE_MAP: {
8265 int tindex, ioffset;
8266 gboolean variance_used;
8268 int len, nmethods, i;
8272 len = decode_int (p, &p, end);
8273 mono_class_setup_vtable (klass);
8275 for (tindex = 0; tindex < len; ++tindex) {
8276 iclass = decode_typeid (p, &p, end, NULL, &err);
8277 if (err != ERR_NONE)
8280 ioffset = mono_class_interface_offset_with_variance (klass, iclass, &variance_used);
8282 return ERR_INVALID_ARGUMENT;
8284 nmethods = mono_class_num_methods (iclass);
8285 buffer_add_int (buf, nmethods);
8288 while ((method = mono_class_get_methods (iclass, &iter))) {
8289 buffer_add_methodid (buf, domain, method);
8291 for (i = 0; i < nmethods; ++i)
8292 buffer_add_methodid (buf, domain, klass->vtable [i + ioffset]);
8296 case CMD_TYPE_IS_INITIALIZED: {
8297 MonoVTable *vtable = mono_class_vtable (domain, klass);
8300 buffer_add_int (buf, (vtable->initialized || vtable->init_failed) ? 1 : 0);
8302 buffer_add_int (buf, 0);
8305 case CMD_TYPE_CREATE_INSTANCE: {
8309 obj = mono_object_new_checked (domain, klass, &error);
8310 mono_error_assert_ok (&error);
8311 buffer_add_objid (buf, obj);
8315 return ERR_NOT_IMPLEMENTED;
8322 type_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8325 MonoDomain *old_domain;
8329 klass = decode_typeid (p, &p, end, &domain, &err);
8330 if (err != ERR_NONE)
8333 old_domain = mono_domain_get ();
8335 mono_domain_set (domain, TRUE);
8337 err = type_commands_internal (command, klass, domain, p, end, buf);
8339 mono_domain_set (old_domain, TRUE);
8345 method_commands_internal (int command, MonoMethod *method, MonoDomain *domain, guint8 *p, guint8 *end, Buffer *buf)
8347 MonoMethodHeader *header;
8351 case CMD_METHOD_GET_NAME: {
8352 buffer_add_string (buf, method->name);
8355 case CMD_METHOD_GET_DECLARING_TYPE: {
8356 buffer_add_typeid (buf, domain, method->klass);
8359 case CMD_METHOD_GET_DEBUG_INFO: {
8360 MonoDebugMethodInfo *minfo;
8362 int i, j, n_il_offsets;
8364 GPtrArray *source_file_list;
8365 MonoSymSeqPoint *sym_seq_points;
8367 header = mono_method_get_header (method);
8369 buffer_add_int (buf, 0);
8370 buffer_add_string (buf, "");
8371 buffer_add_int (buf, 0);
8375 minfo = mono_debug_lookup_method (method);
8377 buffer_add_int (buf, header->code_size);
8378 buffer_add_string (buf, "");
8379 buffer_add_int (buf, 0);
8380 mono_metadata_free_mh (header);
8384 mono_debug_get_seq_points (minfo, &source_file, &source_file_list, &source_files, &sym_seq_points, &n_il_offsets);
8385 buffer_add_int (buf, header->code_size);
8386 if (CHECK_PROTOCOL_VERSION (2, 13)) {
8387 buffer_add_int (buf, source_file_list->len);
8388 for (i = 0; i < source_file_list->len; ++i) {
8389 MonoDebugSourceInfo *sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, i);
8390 buffer_add_string (buf, sinfo->source_file);
8391 if (CHECK_PROTOCOL_VERSION (2, 14)) {
8392 for (j = 0; j < 16; ++j)
8393 buffer_add_byte (buf, sinfo->hash [j]);
8397 buffer_add_string (buf, source_file);
8399 buffer_add_int (buf, n_il_offsets);
8400 DEBUG_PRINTF (10, "Line number table for method %s:\n", mono_method_full_name (method, TRUE));
8401 for (i = 0; i < n_il_offsets; ++i) {
8402 MonoSymSeqPoint *sp = &sym_seq_points [i];
8403 const char *srcfile = "";
8405 if (source_files [i] != -1) {
8406 MonoDebugSourceInfo *sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, source_files [i]);
8407 srcfile = sinfo->source_file;
8409 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);
8410 buffer_add_int (buf, sp->il_offset);
8411 buffer_add_int (buf, sp->line);
8412 if (CHECK_PROTOCOL_VERSION (2, 13))
8413 buffer_add_int (buf, source_files [i]);
8414 if (CHECK_PROTOCOL_VERSION (2, 19))
8415 buffer_add_int (buf, sp->column);
8416 if (CHECK_PROTOCOL_VERSION (2, 32)) {
8417 buffer_add_int (buf, sp->end_line);
8418 buffer_add_int (buf, sp->end_column);
8421 g_free (source_file);
8422 g_free (source_files);
8423 g_free (sym_seq_points);
8424 g_ptr_array_free (source_file_list, TRUE);
8425 mono_metadata_free_mh (header);
8428 case CMD_METHOD_GET_PARAM_INFO: {
8429 MonoMethodSignature *sig = mono_method_signature (method);
8433 /* FIXME: mono_class_from_mono_type () and byrefs */
8435 /* FIXME: Use a smaller encoding */
8436 buffer_add_int (buf, sig->call_convention);
8437 buffer_add_int (buf, sig->param_count);
8438 buffer_add_int (buf, sig->generic_param_count);
8439 buffer_add_typeid (buf, domain, mono_class_from_mono_type (sig->ret));
8440 for (i = 0; i < sig->param_count; ++i) {
8442 buffer_add_typeid (buf, domain, mono_class_from_mono_type (sig->params [i]));
8445 /* Emit parameter names */
8446 names = g_new (char *, sig->param_count);
8447 mono_method_get_param_names (method, (const char **) names);
8448 for (i = 0; i < sig->param_count; ++i)
8449 buffer_add_string (buf, names [i]);
8454 case CMD_METHOD_GET_LOCALS_INFO: {
8456 MonoDebugLocalsInfo *locals;
8457 int *locals_map = NULL;
8459 header = mono_method_get_header (method);
8461 return ERR_INVALID_ARGUMENT;
8463 locals = mono_debug_lookup_locals (method);
8465 buffer_add_int (buf, header->num_locals);
8467 for (i = 0; i < header->num_locals; ++i) {
8468 buffer_add_typeid (buf, domain, mono_class_from_mono_type (header->locals [i]));
8471 for (i = 0; i < header->num_locals; ++i) {
8473 sprintf (lname, "V_%d", i);
8474 buffer_add_string (buf, lname);
8477 for (i = 0; i < header->num_locals; ++i) {
8478 buffer_add_int (buf, 0);
8479 buffer_add_int (buf, header->code_size);
8482 num_locals = locals->num_locals;
8483 buffer_add_int (buf, num_locals);
8486 for (i = 0; i < num_locals; ++i) {
8487 g_assert (locals->locals [i].index < header->num_locals);
8488 buffer_add_typeid (buf, domain, mono_class_from_mono_type (header->locals [locals->locals [i].index]));
8491 for (i = 0; i < num_locals; ++i)
8492 buffer_add_string (buf, locals->locals [i].name);
8494 for (i = 0; i < num_locals; ++i) {
8495 if (locals->locals [i].block) {
8496 buffer_add_int (buf, locals->locals [i].block->start_offset);
8497 buffer_add_int (buf, locals->locals [i].block->end_offset);
8499 buffer_add_int (buf, 0);
8500 buffer_add_int (buf, header->code_size);
8504 mono_metadata_free_mh (header);
8507 mono_debug_free_locals (locals);
8508 g_free (locals_map);
8512 case CMD_METHOD_GET_INFO:
8513 buffer_add_int (buf, method->flags);
8514 buffer_add_int (buf, method->iflags);
8515 buffer_add_int (buf, method->token);
8516 if (CHECK_PROTOCOL_VERSION (2, 12)) {
8518 if (method->is_generic)
8520 if (mono_method_signature (method)->generic_param_count)
8522 buffer_add_byte (buf, attrs);
8523 if (method->is_generic || method->is_inflated) {
8526 if (method->is_generic) {
8529 MonoMethodInflated *imethod = (MonoMethodInflated *)method;
8531 result = imethod->declaring;
8532 if (imethod->context.class_inst) {
8533 MonoClass *klass = ((MonoMethod *) imethod)->klass;
8534 /*Generic methods gets the context of the GTD.*/
8535 if (mono_class_get_context (klass)) {
8537 result = mono_class_inflate_generic_method_full_checked (result, klass, mono_class_get_context (klass), &error);
8538 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8543 buffer_add_methodid (buf, domain, result);
8545 buffer_add_id (buf, 0);
8547 if (CHECK_PROTOCOL_VERSION (2, 15)) {
8548 if (mono_method_signature (method)->generic_param_count) {
8551 if (method->is_inflated) {
8552 MonoGenericInst *inst = mono_method_get_context (method)->method_inst;
8554 count = inst->type_argc;
8555 buffer_add_int (buf, count);
8557 for (i = 0; i < count; i++)
8558 buffer_add_typeid (buf, domain, mono_class_from_mono_type (inst->type_argv [i]));
8560 buffer_add_int (buf, 0);
8562 } else if (method->is_generic) {
8563 MonoGenericContainer *container = mono_method_get_generic_container (method);
8565 count = mono_method_signature (method)->generic_param_count;
8566 buffer_add_int (buf, count);
8567 for (i = 0; i < count; i++) {
8568 MonoGenericParam *param = mono_generic_container_get_param (container, i);
8569 MonoClass *pklass = mono_class_from_generic_parameter_internal (param);
8570 buffer_add_typeid (buf, domain, pklass);
8573 buffer_add_int (buf, 0);
8576 buffer_add_int (buf, 0);
8581 case CMD_METHOD_GET_BODY: {
8584 header = mono_method_get_header (method);
8586 buffer_add_int (buf, 0);
8588 if (CHECK_PROTOCOL_VERSION (2, 18))
8589 buffer_add_int (buf, 0);
8591 buffer_add_int (buf, header->code_size);
8592 for (i = 0; i < header->code_size; ++i)
8593 buffer_add_byte (buf, header->code [i]);
8595 if (CHECK_PROTOCOL_VERSION (2, 18)) {
8596 buffer_add_int (buf, header->num_clauses);
8597 for (i = 0; i < header->num_clauses; ++i) {
8598 MonoExceptionClause *clause = &header->clauses [i];
8600 buffer_add_int (buf, clause->flags);
8601 buffer_add_int (buf, clause->try_offset);
8602 buffer_add_int (buf, clause->try_len);
8603 buffer_add_int (buf, clause->handler_offset);
8604 buffer_add_int (buf, clause->handler_len);
8605 if (clause->flags == MONO_EXCEPTION_CLAUSE_NONE)
8606 buffer_add_typeid (buf, domain, clause->data.catch_class);
8607 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FILTER)
8608 buffer_add_int (buf, clause->data.filter_offset);
8612 mono_metadata_free_mh (header);
8617 case CMD_METHOD_RESOLVE_TOKEN: {
8618 guint32 token = decode_int (p, &p, end);
8621 switch (mono_metadata_token_code (token)) {
8622 case MONO_TOKEN_STRING: {
8626 s = mono_ldstr (domain, method->klass->image, mono_metadata_token_index (token));
8629 s2 = mono_string_to_utf8 (s);
8631 buffer_add_byte (buf, TOKEN_TYPE_STRING);
8632 buffer_add_string (buf, s2);
8638 MonoClass *handle_class;
8640 if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) {
8641 val = mono_method_get_wrapper_data (method, token);
8642 handle_class = (MonoClass *)mono_method_get_wrapper_data (method, token + 1);
8644 if (handle_class == NULL) {
8645 // Can't figure out the token type
8646 buffer_add_byte (buf, TOKEN_TYPE_UNKNOWN);
8651 val = mono_ldtoken_checked (method->klass->image, token, &handle_class, NULL, &error);
8653 g_error ("Could not load token due to %s", mono_error_get_message (&error));
8656 if (handle_class == mono_defaults.typehandle_class) {
8657 buffer_add_byte (buf, TOKEN_TYPE_TYPE);
8658 if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
8659 buffer_add_typeid (buf, domain, (MonoClass *) val);
8661 buffer_add_typeid (buf, domain, mono_class_from_mono_type ((MonoType*)val));
8662 } else if (handle_class == mono_defaults.fieldhandle_class) {
8663 buffer_add_byte (buf, TOKEN_TYPE_FIELD);
8664 buffer_add_fieldid (buf, domain, (MonoClassField *)val);
8665 } else if (handle_class == mono_defaults.methodhandle_class) {
8666 buffer_add_byte (buf, TOKEN_TYPE_METHOD);
8667 buffer_add_methodid (buf, domain, (MonoMethod *)val);
8668 } else if (handle_class == mono_defaults.string_class) {
8671 s = mono_string_to_utf8 ((MonoString *)val);
8672 buffer_add_byte (buf, TOKEN_TYPE_STRING);
8673 buffer_add_string (buf, s);
8676 g_assert_not_reached ();
8683 case CMD_METHOD_GET_CATTRS: {
8684 MonoClass *attr_klass;
8685 MonoCustomAttrInfo *cinfo;
8687 attr_klass = decode_typeid (p, &p, end, NULL, &err);
8688 /* attr_klass can be NULL */
8689 if (err != ERR_NONE)
8692 cinfo = mono_custom_attrs_from_method (method);
8694 err = buffer_add_cattrs (buf, domain, method->klass->image, attr_klass, cinfo);
8695 if (err != ERR_NONE)
8699 case CMD_METHOD_MAKE_GENERIC_METHOD: {
8701 MonoType **type_argv;
8705 MonoGenericInst *ginst;
8706 MonoGenericContext tmp_context;
8707 MonoMethod *inflated;
8709 type_argc = decode_int (p, &p, end);
8710 type_argv = g_new0 (MonoType*, type_argc);
8711 for (i = 0; i < type_argc; ++i) {
8712 klass = decode_typeid (p, &p, end, &d, &err);
8713 if (err != ERR_NONE) {
8719 return ERR_INVALID_ARGUMENT;
8721 type_argv [i] = &klass->byval_arg;
8723 ginst = mono_metadata_get_generic_inst (type_argc, type_argv);
8725 tmp_context.class_inst = method->klass->generic_class ? method->klass->generic_class->context.class_inst : NULL;
8726 tmp_context.method_inst = ginst;
8728 inflated = mono_class_inflate_generic_method_checked (method, &tmp_context, &error);
8729 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8730 if (!mono_verifier_is_method_valid_generic_instantiation (inflated))
8731 return ERR_INVALID_ARGUMENT;
8732 buffer_add_methodid (buf, domain, inflated);
8736 return ERR_NOT_IMPLEMENTED;
8743 method_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8746 MonoDomain *old_domain;
8750 method = decode_methodid (p, &p, end, &domain, &err);
8751 if (err != ERR_NONE)
8754 old_domain = mono_domain_get ();
8756 mono_domain_set (domain, TRUE);
8758 err = method_commands_internal (command, method, domain, p, end, buf);
8760 mono_domain_set (old_domain, TRUE);
8766 thread_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8768 int objid = decode_objid (p, &p, end);
8770 MonoThread *thread_obj;
8771 MonoInternalThread *thread;
8773 err = get_object (objid, (MonoObject**)&thread_obj);
8774 if (err != ERR_NONE)
8777 thread = THREAD_TO_INTERNAL (thread_obj);
8780 case CMD_THREAD_GET_NAME: {
8782 gunichar2 *s = mono_thread_get_name (thread, &name_len);
8785 buffer_add_int (buf, 0);
8790 name = g_utf16_to_utf8 (s, name_len, NULL, &len, NULL);
8792 buffer_add_int (buf, len);
8793 buffer_add_data (buf, (guint8*)name, len);
8798 case CMD_THREAD_GET_FRAME_INFO: {
8799 DebuggerTlsData *tls;
8800 int i, start_frame, length;
8802 // Wait for suspending if it already started
8803 // FIXME: Races with suspend_count
8804 while (!is_suspended ()) {
8806 wait_for_suspend ();
8810 wait_for_suspend ();
8811 if (!is_suspended ())
8812 return ERR_NOT_SUSPENDED;
8815 start_frame = decode_int (p, &p, end);
8816 length = decode_int (p, &p, end);
8818 if (start_frame != 0 || length != -1)
8819 return ERR_NOT_IMPLEMENTED;
8821 mono_loader_lock ();
8822 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
8823 mono_loader_unlock ();
8826 compute_frame_info (thread, tls);
8828 buffer_add_int (buf, tls->frame_count);
8829 for (i = 0; i < tls->frame_count; ++i) {
8830 buffer_add_int (buf, tls->frames [i]->id);
8831 buffer_add_methodid (buf, tls->frames [i]->domain, tls->frames [i]->actual_method);
8832 buffer_add_int (buf, tls->frames [i]->il_offset);
8834 * Instead of passing the frame type directly to the client, we associate
8835 * it with the previous frame using a set of flags. This avoids lots of
8836 * conditional code in the client, since a frame whose type isn't
8837 * FRAME_TYPE_MANAGED has no method, location, etc.
8839 buffer_add_byte (buf, tls->frames [i]->flags);
8844 case CMD_THREAD_GET_STATE:
8845 buffer_add_int (buf, thread->state);
8847 case CMD_THREAD_GET_INFO:
8848 buffer_add_byte (buf, thread->threadpool_thread);
8850 case CMD_THREAD_GET_ID:
8851 buffer_add_long (buf, (guint64)(gsize)thread);
8853 case CMD_THREAD_GET_TID:
8854 buffer_add_long (buf, (guint64)thread->tid);
8856 case CMD_THREAD_SET_IP: {
8857 DebuggerTlsData *tls;
8860 MonoSeqPointInfo *seq_points;
8865 method = decode_methodid (p, &p, end, &domain, &err);
8866 if (err != ERR_NONE)
8868 il_offset = decode_long (p, &p, end);
8870 while (!is_suspended ()) {
8872 wait_for_suspend ();
8875 mono_loader_lock ();
8876 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
8877 mono_loader_unlock ();
8880 compute_frame_info (thread, tls);
8881 if (tls->frame_count == 0 || tls->frames [0]->actual_method != method)
8882 return ERR_INVALID_ARGUMENT;
8884 found_sp = mono_find_seq_point (domain, method, il_offset, &seq_points, &sp);
8886 g_assert (seq_points);
8889 return ERR_INVALID_ARGUMENT;
8891 // FIXME: Check that the ip change is safe
8893 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);
8894 MONO_CONTEXT_SET_IP (&tls->restore_state.ctx, (guint8*)tls->frames [0]->ji->code_start + sp.native_offset);
8898 return ERR_NOT_IMPLEMENTED;
8905 frame_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8909 MonoThread *thread_obj;
8910 MonoInternalThread *thread;
8911 int pos, i, len, frame_idx;
8912 DebuggerTlsData *tls;
8914 MonoDebugMethodJitInfo *jit;
8915 MonoMethodSignature *sig;
8917 MonoMethodHeader *header;
8919 objid = decode_objid (p, &p, end);
8920 err = get_object (objid, (MonoObject**)&thread_obj);
8921 if (err != ERR_NONE)
8924 thread = THREAD_TO_INTERNAL (thread_obj);
8926 id = decode_id (p, &p, end);
8928 mono_loader_lock ();
8929 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
8930 mono_loader_unlock ();
8933 for (i = 0; i < tls->frame_count; ++i) {
8934 if (tls->frames [i]->id == id)
8937 if (i == tls->frame_count)
8938 return ERR_INVALID_FRAMEID;
8941 frame = tls->frames [frame_idx];
8943 /* This is supported for frames without has_ctx etc. set */
8944 if (command == CMD_STACK_FRAME_GET_DOMAIN) {
8945 if (CHECK_PROTOCOL_VERSION (2, 38))
8946 buffer_add_domainid (buf, frame->domain);
8950 if (!frame->has_ctx)
8951 return ERR_ABSENT_INFORMATION;
8954 frame->jit = mono_debug_find_method (frame->api_method, frame->domain);
8955 if (!frame->jit && frame->api_method->is_inflated)
8956 frame->jit = mono_debug_find_method (mono_method_get_declaring_generic_method (frame->api_method), frame->domain);
8960 /* This could happen for aot images with no jit debug info */
8961 s = mono_method_full_name (frame->api_method, TRUE);
8962 DEBUG_PRINTF (1, "[dbg] No debug information found for '%s'.\n", s);
8964 return ERR_ABSENT_INFORMATION;
8969 sig = mono_method_signature (frame->actual_method);
8971 if (!mono_get_seq_points (frame->domain, frame->actual_method))
8973 * The method is probably from an aot image compiled without soft-debug, variables might be dead, etc.
8975 return ERR_ABSENT_INFORMATION;
8978 case CMD_STACK_FRAME_GET_VALUES: {
8979 len = decode_int (p, &p, end);
8980 header = mono_method_get_header (frame->actual_method);
8982 for (i = 0; i < len; ++i) {
8983 pos = decode_int (p, &p, end);
8988 DEBUG_PRINTF (4, "[dbg] send arg %d.\n", pos);
8990 g_assert (pos >= 0 && pos < jit->num_params);
8992 add_var (buf, jit, sig->params [pos], &jit->params [pos], &frame->ctx, frame->domain, FALSE);
8994 MonoDebugLocalsInfo *locals;
8996 locals = mono_debug_lookup_locals (frame->method);
8998 g_assert (pos < locals->num_locals);
8999 pos = locals->locals [pos].index;
9000 mono_debug_free_locals (locals);
9002 g_assert (pos >= 0 && pos < jit->num_locals);
9004 DEBUG_PRINTF (4, "[dbg] send local %d.\n", pos);
9006 add_var (buf, jit, header->locals [pos], &jit->locals [pos], &frame->ctx, frame->domain, FALSE);
9009 mono_metadata_free_mh (header);
9012 case CMD_STACK_FRAME_GET_THIS: {
9013 if (frame->api_method->klass->valuetype) {
9014 if (!sig->hasthis) {
9015 MonoObject *p = NULL;
9016 buffer_add_value (buf, &mono_defaults.object_class->byval_arg, &p, frame->domain);
9018 add_var (buf, jit, &frame->actual_method->klass->this_arg, jit->this_var, &frame->ctx, frame->domain, TRUE);
9021 if (!sig->hasthis) {
9022 MonoObject *p = NULL;
9023 buffer_add_value (buf, &frame->actual_method->klass->byval_arg, &p, frame->domain);
9025 add_var (buf, jit, &frame->api_method->klass->byval_arg, jit->this_var, &frame->ctx, frame->domain, TRUE);
9030 case CMD_STACK_FRAME_SET_VALUES: {
9033 MonoDebugVarInfo *var;
9035 len = decode_int (p, &p, end);
9036 header = mono_method_get_header (frame->actual_method);
9038 for (i = 0; i < len; ++i) {
9039 pos = decode_int (p, &p, end);
9044 g_assert (pos >= 0 && pos < jit->num_params);
9046 t = sig->params [pos];
9047 var = &jit->params [pos];
9049 MonoDebugLocalsInfo *locals;
9051 locals = mono_debug_lookup_locals (frame->method);
9053 g_assert (pos < locals->num_locals);
9054 pos = locals->locals [pos].index;
9055 mono_debug_free_locals (locals);
9057 g_assert (pos >= 0 && pos < jit->num_locals);
9059 t = header->locals [pos];
9060 var = &jit->locals [pos];
9063 if (MONO_TYPE_IS_REFERENCE (t))
9064 val_buf = (guint8 *)g_alloca (sizeof (MonoObject*));
9066 val_buf = (guint8 *)g_alloca (mono_class_instance_size (mono_class_from_mono_type (t)));
9067 err = decode_value (t, frame->domain, val_buf, p, &p, end);
9068 if (err != ERR_NONE)
9071 set_var (t, var, &frame->ctx, frame->domain, val_buf, frame->reg_locations, &tls->restore_state.ctx);
9073 mono_metadata_free_mh (header);
9076 case CMD_STACK_FRAME_GET_DOMAIN: {
9077 if (CHECK_PROTOCOL_VERSION (2, 38))
9078 buffer_add_domainid (buf, frame->domain);
9082 return ERR_NOT_IMPLEMENTED;
9089 array_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9092 int objid, index, len, i, esize;
9096 objid = decode_objid (p, &p, end);
9097 err = get_object (objid, (MonoObject**)&arr);
9098 if (err != ERR_NONE)
9102 case CMD_ARRAY_REF_GET_LENGTH:
9103 buffer_add_int (buf, arr->obj.vtable->klass->rank);
9105 buffer_add_int (buf, arr->max_length);
9106 buffer_add_int (buf, 0);
9108 for (i = 0; i < arr->obj.vtable->klass->rank; ++i) {
9109 buffer_add_int (buf, arr->bounds [i].length);
9110 buffer_add_int (buf, arr->bounds [i].lower_bound);
9114 case CMD_ARRAY_REF_GET_VALUES:
9115 index = decode_int (p, &p, end);
9116 len = decode_int (p, &p, end);
9118 g_assert (index >= 0 && len >= 0);
9119 // Reordered to avoid integer overflow
9120 g_assert (!(index > arr->max_length - len));
9122 esize = mono_array_element_size (arr->obj.vtable->klass);
9123 for (i = index; i < index + len; ++i) {
9124 elem = (gpointer*)((char*)arr->vector + (i * esize));
9125 buffer_add_value (buf, &arr->obj.vtable->klass->element_class->byval_arg, elem, arr->obj.vtable->domain);
9128 case CMD_ARRAY_REF_SET_VALUES:
9129 index = decode_int (p, &p, end);
9130 len = decode_int (p, &p, end);
9132 g_assert (index >= 0 && len >= 0);
9133 // Reordered to avoid integer overflow
9134 g_assert (!(index > arr->max_length - len));
9136 esize = mono_array_element_size (arr->obj.vtable->klass);
9137 for (i = index; i < index + len; ++i) {
9138 elem = (gpointer*)((char*)arr->vector + (i * esize));
9140 decode_value (&arr->obj.vtable->klass->element_class->byval_arg, arr->obj.vtable->domain, (guint8 *)elem, p, &p, end);
9144 return ERR_NOT_IMPLEMENTED;
9151 string_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9157 int i, index, length;
9159 gboolean use_utf16 = FALSE;
9161 objid = decode_objid (p, &p, end);
9162 err = get_object (objid, (MonoObject**)&str);
9163 if (err != ERR_NONE)
9167 case CMD_STRING_REF_GET_VALUE:
9168 if (CHECK_PROTOCOL_VERSION (2, 41)) {
9169 for (i = 0; i < mono_string_length (str); ++i)
9170 if (mono_string_chars (str)[i] == 0)
9172 buffer_add_byte (buf, use_utf16 ? 1 : 0);
9175 buffer_add_int (buf, mono_string_length (str) * 2);
9176 buffer_add_data (buf, (guint8*)mono_string_chars (str), mono_string_length (str) * 2);
9178 s = mono_string_to_utf8 (str);
9179 buffer_add_string (buf, s);
9183 case CMD_STRING_REF_GET_LENGTH:
9184 buffer_add_long (buf, mono_string_length (str));
9186 case CMD_STRING_REF_GET_CHARS:
9187 index = decode_long (p, &p, end);
9188 length = decode_long (p, &p, end);
9189 if (index > mono_string_length (str) - length)
9190 return ERR_INVALID_ARGUMENT;
9191 c = mono_string_chars (str) + index;
9192 for (i = 0; i < length; ++i)
9193 buffer_add_short (buf, c [i]);
9196 return ERR_NOT_IMPLEMENTED;
9203 object_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9213 if (command == CMD_OBJECT_REF_IS_COLLECTED) {
9214 objid = decode_objid (p, &p, end);
9215 err = get_object (objid, &obj);
9216 if (err != ERR_NONE)
9217 buffer_add_int (buf, 1);
9219 buffer_add_int (buf, 0);
9223 objid = decode_objid (p, &p, end);
9224 err = get_object (objid, &obj);
9225 if (err != ERR_NONE)
9228 MonoClass *obj_type;
9229 gboolean remote_obj = FALSE;
9231 obj_type = obj->vtable->klass;
9232 if (mono_class_is_transparent_proxy (obj_type)) {
9233 obj_type = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
9237 g_assert (obj_type);
9240 case CMD_OBJECT_REF_GET_TYPE:
9241 /* This handles transparent proxies too */
9242 buffer_add_typeid (buf, obj->vtable->domain, mono_class_from_mono_type (((MonoReflectionType*)obj->vtable->type)->type));
9244 case CMD_OBJECT_REF_GET_VALUES:
9245 len = decode_int (p, &p, end);
9247 for (i = 0; i < len; ++i) {
9248 MonoClassField *f = decode_fieldid (p, &p, end, NULL, &err);
9249 if (err != ERR_NONE)
9252 /* Check that the field belongs to the object */
9254 for (k = obj_type; k; k = k->parent) {
9255 if (k == f->parent) {
9261 return ERR_INVALID_FIELDID;
9263 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC) {
9267 if (mono_class_field_is_special_static (f))
9268 return ERR_INVALID_FIELDID;
9270 g_assert (f->type->attrs & FIELD_ATTRIBUTE_STATIC);
9271 vtable = mono_class_vtable (obj->vtable->domain, f->parent);
9272 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
9273 mono_field_static_get_value (vtable, f, val);
9274 buffer_add_value (buf, f->type, val, obj->vtable->domain);
9277 guint8 *field_value = NULL;
9278 void *field_storage = NULL;
9281 #ifndef DISABLE_REMOTING
9282 field_value = mono_load_remote_field(obj, obj_type, f, &field_storage);
9284 g_assert_not_reached ();
9287 field_value = (guint8*)obj + f->offset;
9289 buffer_add_value (buf, f->type, field_value, obj->vtable->domain);
9293 case CMD_OBJECT_REF_SET_VALUES:
9294 len = decode_int (p, &p, end);
9296 for (i = 0; i < len; ++i) {
9297 f = decode_fieldid (p, &p, end, NULL, &err);
9298 if (err != ERR_NONE)
9301 /* Check that the field belongs to the object */
9303 for (k = obj_type; k; k = k->parent) {
9304 if (k == f->parent) {
9310 return ERR_INVALID_FIELDID;
9312 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC) {
9316 if (mono_class_field_is_special_static (f))
9317 return ERR_INVALID_FIELDID;
9319 g_assert (f->type->attrs & FIELD_ATTRIBUTE_STATIC);
9320 vtable = mono_class_vtable (obj->vtable->domain, f->parent);
9322 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
9323 err = decode_value (f->type, obj->vtable->domain, val, p, &p, end);
9324 if (err != ERR_NONE) {
9328 mono_field_static_set_value (vtable, f, val);
9331 err = decode_value (f->type, obj->vtable->domain, (guint8*)obj + f->offset, p, &p, end);
9332 if (err != ERR_NONE)
9337 case CMD_OBJECT_REF_GET_ADDRESS:
9338 buffer_add_long (buf, (gssize)obj);
9340 case CMD_OBJECT_REF_GET_DOMAIN:
9341 buffer_add_domainid (buf, obj->vtable->domain);
9343 case CMD_OBJECT_REF_GET_INFO:
9344 buffer_add_typeid (buf, obj->vtable->domain, mono_class_from_mono_type (((MonoReflectionType*)obj->vtable->type)->type));
9345 buffer_add_domainid (buf, obj->vtable->domain);
9348 return ERR_NOT_IMPLEMENTED;
9355 command_set_to_string (CommandSet command_set)
9357 switch (command_set) {
9360 case CMD_SET_OBJECT_REF:
9361 return "OBJECT_REF";
9362 case CMD_SET_STRING_REF:
9363 return "STRING_REF";
9364 case CMD_SET_THREAD:
9366 case CMD_SET_ARRAY_REF:
9368 case CMD_SET_EVENT_REQUEST:
9369 return "EVENT_REQUEST";
9370 case CMD_SET_STACK_FRAME:
9371 return "STACK_FRAME";
9372 case CMD_SET_APPDOMAIN:
9374 case CMD_SET_ASSEMBLY:
9376 case CMD_SET_METHOD:
9380 case CMD_SET_MODULE:
9391 static const char* vm_cmds_str [] = {
9399 "SET_PROTOCOL_VERSION",
9402 "GET_TYPES_FOR_SOURCE_FILE",
9407 static const char* thread_cmds_str[] = {
9417 static const char* event_cmds_str[] = {
9420 "REQUEST_CLEAR_ALL_BREAKPOINTS"
9423 static const char* appdomain_cmds_str[] = {
9425 "GET_FRIENDLY_NAME",
9427 "GET_ENTRY_ASSEMBLY",
9430 "CREATE_BOXED_VALUE"
9433 static const char* assembly_cmds_str[] = {
9436 "GET_MANIFEST_MODULE",
9442 static const char* module_cmds_str[] = {
9446 static const char* field_cmds_str[] = {
9450 static const char* method_cmds_str[] = {
9452 "GET_DECLARING_TYPE",
9460 "MAKE_GENERIC_METHOD"
9463 static const char* type_cmds_str[] = {
9471 "IS_ASSIGNABLE_FROM",
9475 "GET_PROPERTY_CATTRS",
9476 "GET_SOURCE_FILES_2",
9478 "GET_METHODS_BY_NAME_FLAGS",
9480 "GET_INTERFACE_MAP",
9484 static const char* stack_frame_cmds_str[] = {
9491 static const char* array_cmds_str[] = {
9497 static const char* string_cmds_str[] = {
9503 static const char* object_cmds_str[] = {
9514 cmd_to_string (CommandSet set, int command)
9522 cmds_len = G_N_ELEMENTS (vm_cmds_str);
9524 case CMD_SET_OBJECT_REF:
9525 cmds = object_cmds_str;
9526 cmds_len = G_N_ELEMENTS (object_cmds_str);
9528 case CMD_SET_STRING_REF:
9529 cmds = string_cmds_str;
9530 cmds_len = G_N_ELEMENTS (string_cmds_str);
9532 case CMD_SET_THREAD:
9533 cmds = thread_cmds_str;
9534 cmds_len = G_N_ELEMENTS (thread_cmds_str);
9536 case CMD_SET_ARRAY_REF:
9537 cmds = array_cmds_str;
9538 cmds_len = G_N_ELEMENTS (array_cmds_str);
9540 case CMD_SET_EVENT_REQUEST:
9541 cmds = event_cmds_str;
9542 cmds_len = G_N_ELEMENTS (event_cmds_str);
9544 case CMD_SET_STACK_FRAME:
9545 cmds = stack_frame_cmds_str;
9546 cmds_len = G_N_ELEMENTS (stack_frame_cmds_str);
9548 case CMD_SET_APPDOMAIN:
9549 cmds = appdomain_cmds_str;
9550 cmds_len = G_N_ELEMENTS (appdomain_cmds_str);
9552 case CMD_SET_ASSEMBLY:
9553 cmds = assembly_cmds_str;
9554 cmds_len = G_N_ELEMENTS (assembly_cmds_str);
9556 case CMD_SET_METHOD:
9557 cmds = method_cmds_str;
9558 cmds_len = G_N_ELEMENTS (method_cmds_str);
9561 cmds = type_cmds_str;
9562 cmds_len = G_N_ELEMENTS (type_cmds_str);
9564 case CMD_SET_MODULE:
9565 cmds = module_cmds_str;
9566 cmds_len = G_N_ELEMENTS (module_cmds_str);
9569 cmds = field_cmds_str;
9570 cmds_len = G_N_ELEMENTS (field_cmds_str);
9573 cmds = event_cmds_str;
9574 cmds_len = G_N_ELEMENTS (event_cmds_str);
9579 if (command > 0 && command <= cmds_len)
9580 return cmds [command - 1];
9586 wait_for_attach (void)
9588 #ifndef DISABLE_SOCKET_TRANSPORT
9589 if (listen_fd == -1) {
9590 DEBUG_PRINTF (1, "[dbg] Invalid listening socket\n");
9594 /* Block and wait for client connection */
9595 conn_fd = socket_transport_accept (listen_fd);
9597 DEBUG_PRINTF (1, "Accepted connection on %d\n", conn_fd);
9598 if (conn_fd == -1) {
9599 DEBUG_PRINTF (1, "[dbg] Bad client connection\n");
9603 g_assert_not_reached ();
9607 disconnected = !transport_handshake ();
9609 DEBUG_PRINTF (1, "Transport handshake failed!\n");
9619 * This thread handles communication with the debugger client using a JDWP
9622 static guint32 WINAPI
9623 debugger_thread (void *arg)
9625 int res, len, id, flags, command = 0;
9626 CommandSet command_set = (CommandSet)0;
9627 guint8 header [HEADER_LENGTH];
9628 guint8 *data, *p, *end;
9632 gboolean attach_failed = FALSE;
9633 gpointer attach_cookie, attach_dummy;
9635 DEBUG_PRINTF (1, "[dbg] Agent thread started, pid=%p\n", (gpointer) (gsize) mono_native_thread_id_get ());
9637 debugger_thread_id = mono_native_thread_id_get ();
9639 attach_cookie = mono_jit_thread_attach (mono_get_root_domain (), &attach_dummy);
9641 mono_thread_internal_current ()->flags |= MONO_THREAD_FLAG_DONT_MANAGE;
9643 mono_set_is_debugger_attached (TRUE);
9645 if (agent_config.defer) {
9646 if (!wait_for_attach ()) {
9647 DEBUG_PRINTF (1, "[dbg] Can't attach, aborting debugger thread.\n");
9648 attach_failed = TRUE; // Don't abort process when we can't listen
9650 /* Send start event to client */
9651 process_profiler_event (EVENT_KIND_VM_START, mono_thread_get_main ());
9655 while (!attach_failed) {
9656 res = transport_recv (header, HEADER_LENGTH);
9658 /* This will break if the socket is closed during shutdown too */
9659 if (res != HEADER_LENGTH) {
9660 DEBUG_PRINTF (1, "[dbg] transport_recv () returned %d, expected %d.\n", res, HEADER_LENGTH);
9665 end = header + HEADER_LENGTH;
9667 len = decode_int (p, &p, end);
9668 id = decode_int (p, &p, end);
9669 flags = decode_byte (p, &p, end);
9670 command_set = (CommandSet)decode_byte (p, &p, end);
9671 command = decode_byte (p, &p, end);
9673 g_assert (flags == 0);
9676 const char *cmd_str;
9679 cmd_str = cmd_to_string (command_set, command);
9681 sprintf (cmd_num, "%d", command);
9685 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);
9688 data = (guint8 *)g_malloc (len - HEADER_LENGTH);
9689 if (len - HEADER_LENGTH > 0)
9691 res = transport_recv (data, len - HEADER_LENGTH);
9692 if (res != len - HEADER_LENGTH) {
9693 DEBUG_PRINTF (1, "[dbg] transport_recv () returned %d, expected %d.\n", res, len - HEADER_LENGTH);
9699 end = data + (len - HEADER_LENGTH);
9701 buffer_init (&buf, 128);
9706 /* Process the request */
9707 switch (command_set) {
9709 err = vm_commands (command, id, p, end, &buf);
9710 if (err == ERR_NONE && command == CMD_VM_INVOKE_METHOD)
9711 /* Sent after the invoke is complete */
9714 case CMD_SET_EVENT_REQUEST:
9715 err = event_commands (command, p, end, &buf);
9717 case CMD_SET_APPDOMAIN:
9718 err = domain_commands (command, p, end, &buf);
9720 case CMD_SET_ASSEMBLY:
9721 err = assembly_commands (command, p, end, &buf);
9723 case CMD_SET_MODULE:
9724 err = module_commands (command, p, end, &buf);
9727 err = field_commands (command, p, end, &buf);
9730 err = type_commands (command, p, end, &buf);
9732 case CMD_SET_METHOD:
9733 err = method_commands (command, p, end, &buf);
9735 case CMD_SET_THREAD:
9736 err = thread_commands (command, p, end, &buf);
9738 case CMD_SET_STACK_FRAME:
9739 err = frame_commands (command, p, end, &buf);
9741 case CMD_SET_ARRAY_REF:
9742 err = array_commands (command, p, end, &buf);
9744 case CMD_SET_STRING_REF:
9745 err = string_commands (command, p, end, &buf);
9747 case CMD_SET_OBJECT_REF:
9748 err = object_commands (command, p, end, &buf);
9751 err = ERR_NOT_IMPLEMENTED;
9754 if (command_set == CMD_SET_VM && command == CMD_VM_START_BUFFERING) {
9755 buffer_replies = TRUE;
9759 if (buffer_replies) {
9760 buffer_reply_packet (id, err, &buf);
9762 send_reply_packet (id, err, &buf);
9763 //DEBUG_PRINTF (1, "[dbg] Sent reply to %d [at=%lx].\n", id, (long)mono_100ns_ticks () / 10000);
9767 if (err == ERR_NONE && command_set == CMD_SET_VM && command == CMD_VM_STOP_BUFFERING) {
9768 send_buffered_reply_packets ();
9769 buffer_replies = FALSE;
9775 if (command_set == CMD_SET_VM && (command == CMD_VM_DISPOSE || command == CMD_VM_EXIT))
9779 mono_set_is_debugger_attached (FALSE);
9781 mono_coop_mutex_lock (&debugger_thread_exited_mutex);
9782 debugger_thread_exited = TRUE;
9783 mono_coop_cond_signal (&debugger_thread_exited_cond);
9784 mono_coop_mutex_unlock (&debugger_thread_exited_mutex);
9786 DEBUG_PRINTF (1, "[dbg] Debugger thread exited.\n");
9788 if (!attach_failed && command_set == CMD_SET_VM && command == CMD_VM_DISPOSE && !(vm_death_event_sent || mono_runtime_is_shutting_down ())) {
9789 DEBUG_PRINTF (2, "[dbg] Detached - restarting clean debugger thread.\n");
9790 start_debugger_thread ();
9793 mono_jit_thread_detach (attach_cookie, &attach_dummy);
9798 #else /* DISABLE_DEBUGGER_AGENT */
9801 mono_debugger_agent_parse_options (char *options)
9803 g_error ("This runtime is configured with the debugger agent disabled.");
9807 mono_debugger_agent_init (void)
9812 mono_debugger_agent_breakpoint_hit (void *sigctx)
9817 mono_debugger_agent_single_step_event (void *sigctx)
9822 mono_debugger_agent_free_domain_info (MonoDomain *domain)
9827 mono_debugger_agent_handle_exception (MonoException *ext, MonoContext *throw_ctx,
9828 MonoContext *catch_ctx)
9833 mono_debugger_agent_begin_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
9838 mono_debugger_agent_end_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
9843 mono_debugger_agent_user_break (void)
9849 mono_debugger_agent_debug_log (int level, MonoString *category, MonoString *message)
9854 mono_debugger_agent_debug_log_is_enabled (void)
9860 mono_debugger_agent_unhandled_exception (MonoException *exc)
9862 g_assert_not_reached ();
9866 debugger_agent_single_step_from_context (MonoContext *ctx)
9868 g_assert_not_reached ();
9872 debugger_agent_breakpoint_from_context (MonoContext *ctx)
9874 g_assert_not_reached ();