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/utils/mono-coop-mutex.h>
66 #include <mono/utils/mono-coop-semaphore.h>
67 #include <mono/utils/mono-error-internals.h>
68 #include <mono/utils/mono-stack-unwinding.h>
69 #include <mono/utils/mono-time.h>
70 #include <mono/utils/mono-threads.h>
71 #include <mono/utils/networking.h>
72 #include "debugger-agent.h"
74 #include "seq-points.h"
77 * On iOS we can't use System.Environment.Exit () as it will do the wrong
80 #if !defined (TARGET_IOS)
81 #define TRY_MANAGED_SYSTEM_ENVIRONMENT_EXIT
85 #ifndef MONO_ARCH_SOFT_DEBUG_SUPPORTED
86 #define DISABLE_DEBUGGER_AGENT 1
89 #ifdef DISABLE_SOFT_DEBUG
90 #define DISABLE_DEBUGGER_AGENT 1
93 #ifndef DISABLE_DEBUGGER_AGENT
95 #include <mono/utils/mono-os-mutex.h>
97 #define THREAD_TO_INTERNAL(thread) (thread)->internal_thread
120 guint32 il_offset, native_offset;
124 * If method is gshared, this is the actual instance, otherwise this is equal to
127 MonoMethod *actual_method;
129 * This is the method which is visible to debugger clients. Same as method,
130 * except for native-to-managed wrappers.
132 MonoMethod *api_method;
134 MonoDebugMethodJitInfo *jit;
137 mgreg_t *reg_locations [MONO_MAX_IREGS];
139 * Whenever ctx is set. This is FALSE for the last frame of running threads, since
140 * the frame can become invalid.
145 typedef struct _InvokeData InvokeData;
153 /* This is the context which needs to be restored after the invoke */
157 * If this is set, invoke this method with the arguments given by ARGS.
161 guint32 suspend_count;
164 InvokeData *last_invoke;
168 MonoThreadUnwindState context;
170 /* This is computed on demand when it is requested using the wire protocol */
171 /* It is freed up when the thread is resumed */
175 * Whenever the frame info is up-to-date. If not, compute_frame_info () will need to
178 gboolean frames_up_to_date;
180 * Points to data about a pending invoke which needs to be executed after the thread
183 InvokeData *pending_invoke;
185 * Set to TRUE if this thread is suspended in suspend_current () or it is executing
190 * Signals whenever the thread is in the process of suspending, i.e. it will suspend
191 * within a finite amount of time.
195 * Set to TRUE if this thread is suspended in suspend_current ().
197 gboolean really_suspended;
198 /* Used to pass the context to the breakpoint/single step handler */
199 MonoContext handler_ctx;
200 /* Whenever thread_stop () was called for this thread */
203 /* Whenever to disable breakpoints (used during invokes) */
204 gboolean disable_breakpoints;
207 * Number of times this thread has been resumed using resume_thread ().
209 guint32 resume_count;
211 MonoInternalThread *thread;
214 * Information about the frame which transitioned to native code for running
217 StackFrameInfo async_last_frame;
220 * The context where the stack walk can be started for running threads.
222 MonoThreadUnwindState async_state;
225 * The context used for filter clauses
227 MonoThreadUnwindState filter_state;
229 gboolean abort_requested;
232 * The current mono_runtime_invoke invocation.
237 * The context where single stepping should resume while the thread is suspended because
238 * of an EXCEPTION event.
240 MonoThreadUnwindState catch_state;
243 * The context which needs to be restored after handling a single step/breakpoint
244 * event. This is the same as the ctx at step/breakpoint site, but includes changes
245 * to caller saved registers done by set_var ().
247 MonoThreadUnwindState restore_state;
248 /* Frames computed from restore_state */
249 int restore_frame_count;
250 StackFrame **restore_frames;
252 /* The currently unloading appdomain */
253 MonoDomain *domain_unloading;
258 void (*connect) (const char *address);
259 void (*close1) (void);
260 void (*close2) (void);
261 gboolean (*send) (void *buf, int len);
262 int (*recv) (void *buf, int len);
266 * Wire Protocol definitions
269 #define HEADER_LENGTH 11
271 #define MAJOR_VERSION 2
272 #define MINOR_VERSION 42
276 CMD_SET_OBJECT_REF = 9,
277 CMD_SET_STRING_REF = 10,
279 CMD_SET_ARRAY_REF = 13,
280 CMD_SET_EVENT_REQUEST = 15,
281 CMD_SET_STACK_FRAME = 16,
282 CMD_SET_APPDOMAIN = 20,
283 CMD_SET_ASSEMBLY = 21,
292 EVENT_KIND_VM_START = 0,
293 EVENT_KIND_VM_DEATH = 1,
294 EVENT_KIND_THREAD_START = 2,
295 EVENT_KIND_THREAD_DEATH = 3,
296 EVENT_KIND_APPDOMAIN_CREATE = 4,
297 EVENT_KIND_APPDOMAIN_UNLOAD = 5,
298 EVENT_KIND_METHOD_ENTRY = 6,
299 EVENT_KIND_METHOD_EXIT = 7,
300 EVENT_KIND_ASSEMBLY_LOAD = 8,
301 EVENT_KIND_ASSEMBLY_UNLOAD = 9,
302 EVENT_KIND_BREAKPOINT = 10,
303 EVENT_KIND_STEP = 11,
304 EVENT_KIND_TYPE_LOAD = 12,
305 EVENT_KIND_EXCEPTION = 13,
306 EVENT_KIND_KEEPALIVE = 14,
307 EVENT_KIND_USER_BREAK = 15,
308 EVENT_KIND_USER_LOG = 16
312 SUSPEND_POLICY_NONE = 0,
313 SUSPEND_POLICY_EVENT_THREAD = 1,
314 SUSPEND_POLICY_ALL = 2
319 ERR_INVALID_OBJECT = 20,
320 ERR_INVALID_FIELDID = 25,
321 ERR_INVALID_FRAMEID = 30,
322 ERR_NOT_IMPLEMENTED = 100,
323 ERR_NOT_SUSPENDED = 101,
324 ERR_INVALID_ARGUMENT = 102,
326 ERR_NO_INVOCATION = 104,
327 ERR_ABSENT_INFORMATION = 105,
328 ERR_NO_SEQ_POINT_AT_IL_OFFSET = 106,
329 ERR_INVOKE_ABORTED = 107,
330 ERR_LOADER_ERROR = 200, /*XXX extend the protocol to pass this information down the pipe */
335 MOD_KIND_THREAD_ONLY = 3,
336 MOD_KIND_LOCATION_ONLY = 7,
337 MOD_KIND_EXCEPTION_ONLY = 8,
339 MOD_KIND_ASSEMBLY_ONLY = 11,
340 MOD_KIND_SOURCE_FILE_ONLY = 12,
341 MOD_KIND_TYPE_NAME_ONLY = 13,
357 STEP_FILTER_NONE = 0,
358 STEP_FILTER_STATIC_CTOR = 1,
359 STEP_FILTER_DEBUGGER_HIDDEN = 2,
360 STEP_FILTER_DEBUGGER_STEP_THROUGH = 4,
361 STEP_FILTER_DEBUGGER_NON_USER_CODE = 8
365 TOKEN_TYPE_STRING = 0,
367 TOKEN_TYPE_FIELD = 2,
368 TOKEN_TYPE_METHOD = 3,
369 TOKEN_TYPE_UNKNOWN = 4
373 VALUE_TYPE_ID_NULL = 0xf0,
374 VALUE_TYPE_ID_TYPE = 0xf1,
375 VALUE_TYPE_ID_PARENT_VTYPE = 0xf2
379 FRAME_FLAG_DEBUGGER_INVOKE = 1,
380 FRAME_FLAG_NATIVE_TRANSITION = 2
384 INVOKE_FLAG_DISABLE_BREAKPOINTS = 1,
385 INVOKE_FLAG_SINGLE_THREADED = 2,
386 INVOKE_FLAG_RETURN_OUT_THIS = 4,
387 INVOKE_FLAG_RETURN_OUT_ARGS = 8,
388 INVOKE_FLAG_VIRTUAL = 16
392 BINDING_FLAGS_IGNORE_CASE = 0x70000000,
393 } BindingFlagsExtensions;
397 CMD_VM_ALL_THREADS = 2,
402 CMD_VM_INVOKE_METHOD = 7,
403 CMD_VM_SET_PROTOCOL_VERSION = 8,
404 CMD_VM_ABORT_INVOKE = 9,
405 CMD_VM_SET_KEEPALIVE = 10,
406 CMD_VM_GET_TYPES_FOR_SOURCE_FILE = 11,
407 CMD_VM_GET_TYPES = 12,
408 CMD_VM_INVOKE_METHODS = 13,
409 CMD_VM_START_BUFFERING = 14,
410 CMD_VM_STOP_BUFFERING = 15
414 CMD_THREAD_GET_FRAME_INFO = 1,
415 CMD_THREAD_GET_NAME = 2,
416 CMD_THREAD_GET_STATE = 3,
417 CMD_THREAD_GET_INFO = 4,
418 CMD_THREAD_GET_ID = 5,
419 CMD_THREAD_GET_TID = 6,
420 CMD_THREAD_SET_IP = 7
424 CMD_EVENT_REQUEST_SET = 1,
425 CMD_EVENT_REQUEST_CLEAR = 2,
426 CMD_EVENT_REQUEST_CLEAR_ALL_BREAKPOINTS = 3
434 CMD_APPDOMAIN_GET_ROOT_DOMAIN = 1,
435 CMD_APPDOMAIN_GET_FRIENDLY_NAME = 2,
436 CMD_APPDOMAIN_GET_ASSEMBLIES = 3,
437 CMD_APPDOMAIN_GET_ENTRY_ASSEMBLY = 4,
438 CMD_APPDOMAIN_CREATE_STRING = 5,
439 CMD_APPDOMAIN_GET_CORLIB = 6,
440 CMD_APPDOMAIN_CREATE_BOXED_VALUE = 7
444 CMD_ASSEMBLY_GET_LOCATION = 1,
445 CMD_ASSEMBLY_GET_ENTRY_POINT = 2,
446 CMD_ASSEMBLY_GET_MANIFEST_MODULE = 3,
447 CMD_ASSEMBLY_GET_OBJECT = 4,
448 CMD_ASSEMBLY_GET_TYPE = 5,
449 CMD_ASSEMBLY_GET_NAME = 6
453 CMD_MODULE_GET_INFO = 1,
457 CMD_FIELD_GET_INFO = 1,
461 CMD_METHOD_GET_NAME = 1,
462 CMD_METHOD_GET_DECLARING_TYPE = 2,
463 CMD_METHOD_GET_DEBUG_INFO = 3,
464 CMD_METHOD_GET_PARAM_INFO = 4,
465 CMD_METHOD_GET_LOCALS_INFO = 5,
466 CMD_METHOD_GET_INFO = 6,
467 CMD_METHOD_GET_BODY = 7,
468 CMD_METHOD_RESOLVE_TOKEN = 8,
469 CMD_METHOD_GET_CATTRS = 9,
470 CMD_METHOD_MAKE_GENERIC_METHOD = 10
474 CMD_TYPE_GET_INFO = 1,
475 CMD_TYPE_GET_METHODS = 2,
476 CMD_TYPE_GET_FIELDS = 3,
477 CMD_TYPE_GET_VALUES = 4,
478 CMD_TYPE_GET_OBJECT = 5,
479 CMD_TYPE_GET_SOURCE_FILES = 6,
480 CMD_TYPE_SET_VALUES = 7,
481 CMD_TYPE_IS_ASSIGNABLE_FROM = 8,
482 CMD_TYPE_GET_PROPERTIES = 9,
483 CMD_TYPE_GET_CATTRS = 10,
484 CMD_TYPE_GET_FIELD_CATTRS = 11,
485 CMD_TYPE_GET_PROPERTY_CATTRS = 12,
486 CMD_TYPE_GET_SOURCE_FILES_2 = 13,
487 CMD_TYPE_GET_VALUES_2 = 14,
488 CMD_TYPE_GET_METHODS_BY_NAME_FLAGS = 15,
489 CMD_TYPE_GET_INTERFACES = 16,
490 CMD_TYPE_GET_INTERFACE_MAP = 17,
491 CMD_TYPE_IS_INITIALIZED = 18,
492 CMD_TYPE_CREATE_INSTANCE = 19
496 CMD_STACK_FRAME_GET_VALUES = 1,
497 CMD_STACK_FRAME_GET_THIS = 2,
498 CMD_STACK_FRAME_SET_VALUES = 3,
499 CMD_STACK_FRAME_GET_DOMAIN = 4,
503 CMD_ARRAY_REF_GET_LENGTH = 1,
504 CMD_ARRAY_REF_GET_VALUES = 2,
505 CMD_ARRAY_REF_SET_VALUES = 3,
509 CMD_STRING_REF_GET_VALUE = 1,
510 CMD_STRING_REF_GET_LENGTH = 2,
511 CMD_STRING_REF_GET_CHARS = 3
515 CMD_OBJECT_REF_GET_TYPE = 1,
516 CMD_OBJECT_REF_GET_VALUES = 2,
517 CMD_OBJECT_REF_IS_COLLECTED = 3,
518 CMD_OBJECT_REF_GET_ADDRESS = 4,
519 CMD_OBJECT_REF_GET_DOMAIN = 5,
520 CMD_OBJECT_REF_SET_VALUES = 6,
521 CMD_OBJECT_REF_GET_INFO = 7,
527 int count; /* For kind == MOD_KIND_COUNT */
528 MonoInternalThread *thread; /* For kind == MOD_KIND_THREAD_ONLY */
529 MonoClass *exc_class; /* For kind == MONO_KIND_EXCEPTION_ONLY */
530 MonoAssembly **assemblies; /* For kind == MONO_KIND_ASSEMBLY_ONLY */
531 GHashTable *source_files; /* For kind == MONO_KIND_SOURCE_FILE_ONLY */
532 GHashTable *type_names; /* For kind == MONO_KIND_TYPE_NAME_ONLY */
533 StepFilter filter; /* For kind == MOD_KIND_STEP */
535 gboolean caught, uncaught, subclasses; /* For kind == MOD_KIND_EXCEPTION_ONLY */
544 Modifier modifiers [MONO_ZERO_LEN_ARRAY];
548 * Describes a single step request.
552 MonoInternalThread *thread;
558 MonoMethod *start_method;
559 MonoMethod *last_method;
561 /* Whenever single stepping is performed using start/stop_single_stepping () */
563 /* The list of breakpoints used to implement step-over */
565 /* The number of frames at the start of a step-over */
570 * Contains additional information for an event
573 /* For EVENT_KIND_EXCEPTION */
575 MonoContext catch_ctx;
577 /* For EVENT_KIND_USER_LOG */
579 char *category, *message;
580 /* For EVENT_KIND_TYPE_LOAD */
584 /* Dummy structure used for the profiler callbacks */
590 guint8 *buf, *p, *end;
593 typedef struct ReplyPacket {
599 #define DEBUG(level,s) do { if (G_UNLIKELY ((level) <= log_level)) { s; fflush (log_file); } } while (0)
601 #ifdef PLATFORM_ANDROID
602 #define DEBUG_PRINTF(level, ...) do { if (G_UNLIKELY ((level) <= log_level)) { g_print (__VA_ARGS__); } } while (0)
604 #define DEBUG_PRINTF(level, ...) do { if (G_UNLIKELY ((level) <= log_level)) { fprintf (log_file, __VA_ARGS__); fflush (log_file); } } while (0)
608 #define get_last_sock_error() WSAGetLastError()
609 #define MONO_EWOULDBLOCK WSAEWOULDBLOCK
610 #define MONO_EINTR WSAEINTR
612 #define get_last_sock_error() errno
613 #define MONO_EWOULDBLOCK EWOULDBLOCK
614 #define MONO_EINTR EINTR
617 #define CHECK_PROTOCOL_VERSION(major,minor) \
618 (protocol_version_set && (major_version > (major) || (major_version == (major) && minor_version >= (minor))))
624 static AgentConfig agent_config;
627 * Whenever the agent is fully initialized.
628 * When using the onuncaught or onthrow options, only some parts of the agent are
629 * initialized on startup, and the full initialization which includes connection
630 * establishment and the startup of the agent thread is only done in response to
633 static gint32 inited;
635 #ifndef DISABLE_SOCKET_TRANSPORT
637 static int listen_fd;
640 static int packet_id = 0;
642 static int objref_id = 0;
644 static int event_request_id = 0;
646 static int frame_id = 0;
648 static GPtrArray *event_requests;
650 static MonoNativeTlsKey debugger_tls_id;
652 static gboolean vm_start_event_sent, vm_death_event_sent, disconnected;
654 /* Maps MonoInternalThread -> DebuggerTlsData */
655 /* Protected by the loader lock */
656 static MonoGHashTable *thread_to_tls;
658 /* Maps tid -> MonoInternalThread */
659 /* Protected by the loader lock */
660 static MonoGHashTable *tid_to_thread;
662 /* Maps tid -> MonoThread (not MonoInternalThread) */
663 /* Protected by the loader lock */
664 static MonoGHashTable *tid_to_thread_obj;
666 static MonoNativeThreadId debugger_thread_id;
668 static HANDLE debugger_thread_handle;
670 static int log_level;
672 static gboolean embedding;
674 static FILE *log_file;
676 /* Assemblies whose assembly load event has no been sent yet */
677 /* Protected by the dbg lock */
678 static GPtrArray *pending_assembly_loads;
680 /* Whenever the debugger thread has exited */
681 static gboolean debugger_thread_exited;
683 /* Cond variable used to wait for debugger_thread_exited becoming true */
684 static MonoCoopCond debugger_thread_exited_cond;
686 /* Mutex for the cond var above */
687 static MonoCoopMutex debugger_thread_exited_mutex;
689 static DebuggerProfiler debugger_profiler;
691 /* The single step request instance */
692 static SingleStepReq *ss_req;
694 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
695 /* Number of single stepping operations in progress */
699 /* The protocol version of the client */
700 static int major_version, minor_version;
702 /* Whenever the variables above are set by the client */
703 static gboolean protocol_version_set;
705 /* A hash table containing all active domains */
706 /* Protected by the loader lock */
707 static GHashTable *domains;
709 /* The number of times the runtime is suspended */
710 static gint32 suspend_count;
712 /* Whenever to buffer reply messages and send them together */
713 static gboolean buffer_replies;
715 /* Buffered reply packets */
716 static ReplyPacket reply_packets [128];
719 #define dbg_lock() mono_coop_mutex_lock (&debug_mutex)
720 #define dbg_unlock() mono_coop_mutex_unlock (&debug_mutex)
721 static MonoCoopMutex debug_mutex;
723 static void transport_init (void);
724 static void transport_connect (const char *address);
725 static gboolean transport_handshake (void);
726 static void register_transport (DebuggerTransport *trans);
728 static guint32 WINAPI debugger_thread (void *arg);
730 static void runtime_initialized (MonoProfiler *prof);
732 static void runtime_shutdown (MonoProfiler *prof);
734 static void thread_startup (MonoProfiler *prof, uintptr_t tid);
736 static void thread_end (MonoProfiler *prof, uintptr_t tid);
738 static void appdomain_load (MonoProfiler *prof, MonoDomain *domain, int result);
740 static void appdomain_start_unload (MonoProfiler *prof, MonoDomain *domain);
742 static void appdomain_unload (MonoProfiler *prof, MonoDomain *domain);
744 static void emit_appdomain_load (gpointer key, gpointer value, gpointer user_data);
746 static void emit_thread_start (gpointer key, gpointer value, gpointer user_data);
748 static void invalidate_each_thread (gpointer key, gpointer value, gpointer user_data);
750 static void assembly_load (MonoProfiler *prof, MonoAssembly *assembly, int result);
752 static void assembly_unload (MonoProfiler *prof, MonoAssembly *assembly);
754 static void emit_assembly_load (gpointer assembly, gpointer user_data);
756 static void emit_type_load (gpointer key, gpointer type, gpointer user_data);
758 static void jit_end (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *jinfo, int result);
760 static void add_pending_breakpoints (MonoMethod *method, MonoJitInfo *jinfo);
762 static void start_single_stepping (void);
764 static void stop_single_stepping (void);
766 static void suspend_current (void);
768 static void clear_event_requests_for_assembly (MonoAssembly *assembly);
770 static void clear_types_for_assembly (MonoAssembly *assembly);
772 static void clear_breakpoints_for_domain (MonoDomain *domain);
774 static void process_profiler_event (EventKind event, gpointer arg);
776 /* Submodule init/cleanup */
777 static void breakpoints_init (void);
778 static void breakpoints_cleanup (void);
780 static void objrefs_init (void);
781 static void objrefs_cleanup (void);
783 static void ids_init (void);
784 static void ids_cleanup (void);
786 static void suspend_init (void);
788 static void ss_start (SingleStepReq *ss_req, MonoMethod *method, SeqPoint *sp, MonoSeqPointInfo *info, MonoContext *ctx, DebuggerTlsData *tls, gboolean step_to_catch,
789 StackFrame **frames, int nframes);
790 static ErrorCode ss_create (MonoInternalThread *thread, StepSize size, StepDepth depth, StepFilter filter, EventRequest *req);
791 static void ss_destroy (SingleStepReq *req);
793 static void start_debugger_thread (void);
794 static void stop_debugger_thread (void);
796 static void finish_agent_init (gboolean on_startup);
798 static void process_profiler_event (EventKind event, gpointer arg);
800 static void invalidate_frames (DebuggerTlsData *tls);
802 #ifndef DISABLE_SOCKET_TRANSPORT
804 register_socket_transport (void);
807 static inline gboolean
808 is_debugger_thread (void)
810 return mono_native_thread_id_equals (mono_native_thread_id_get (), debugger_thread_id);
814 parse_address (char *address, char **host, int *port)
816 char *pos = strchr (address, ':');
818 if (pos == NULL || pos == address)
821 *host = (char *)g_malloc (pos - address + 1);
822 strncpy (*host, address, pos - address);
823 (*host) [pos - address] = '\0';
825 *port = atoi (pos + 1);
833 fprintf (stderr, "Usage: mono --debugger-agent=[<option>=<value>,...] ...\n");
834 fprintf (stderr, "Available options:\n");
835 fprintf (stderr, " transport=<transport>\t\tTransport to use for connecting to the debugger (mandatory, possible values: 'dt_socket')\n");
836 fprintf (stderr, " address=<hostname>:<port>\tAddress to connect to (mandatory)\n");
837 fprintf (stderr, " loglevel=<n>\t\t\tLog level (defaults to 0)\n");
838 fprintf (stderr, " logfile=<file>\t\tFile to log to (defaults to stdout)\n");
839 fprintf (stderr, " suspend=y/n\t\t\tWhether to suspend after startup.\n");
840 fprintf (stderr, " timeout=<n>\t\t\tTimeout for connecting in milliseconds.\n");
841 fprintf (stderr, " server=y/n\t\t\tWhether to listen for a client connection.\n");
842 fprintf (stderr, " keepalive=<n>\t\t\tSend keepalive events every n milliseconds.\n");
843 fprintf (stderr, " setpgid=y/n\t\t\tWhether to call setpid(0, 0) after startup.\n");
844 fprintf (stderr, " help\t\t\t\tPrint this help.\n");
848 parse_flag (const char *option, char *flag)
850 if (!strcmp (flag, "y"))
852 else if (!strcmp (flag, "n"))
855 fprintf (stderr, "debugger-agent: The valid values for the '%s' option are 'y' and 'n'.\n", option);
862 mono_debugger_agent_parse_options (char *options)
869 #ifndef MONO_ARCH_SOFT_DEBUG_SUPPORTED
870 fprintf (stderr, "--debugger-agent is not supported on this platform.\n");
874 extra = g_getenv ("MONO_SDB_ENV_OPTIONS");
876 options = g_strdup_printf ("%s,%s", options, extra);
878 agent_config.enabled = TRUE;
879 agent_config.suspend = TRUE;
880 agent_config.server = FALSE;
881 agent_config.defer = FALSE;
882 agent_config.address = NULL;
884 //agent_config.log_level = 10;
886 args = g_strsplit (options, ",", -1);
887 for (ptr = args; ptr && *ptr; ptr ++) {
890 if (strncmp (arg, "transport=", 10) == 0) {
891 agent_config.transport = g_strdup (arg + 10);
892 } else if (strncmp (arg, "address=", 8) == 0) {
893 agent_config.address = g_strdup (arg + 8);
894 } else if (strncmp (arg, "loglevel=", 9) == 0) {
895 agent_config.log_level = atoi (arg + 9);
896 } else if (strncmp (arg, "logfile=", 8) == 0) {
897 agent_config.log_file = g_strdup (arg + 8);
898 } else if (strncmp (arg, "suspend=", 8) == 0) {
899 agent_config.suspend = parse_flag ("suspend", arg + 8);
900 } else if (strncmp (arg, "server=", 7) == 0) {
901 agent_config.server = parse_flag ("server", arg + 7);
902 } else if (strncmp (arg, "onuncaught=", 11) == 0) {
903 agent_config.onuncaught = parse_flag ("onuncaught", arg + 11);
904 } else if (strncmp (arg, "onthrow=", 8) == 0) {
905 /* We support multiple onthrow= options */
906 agent_config.onthrow = g_slist_append (agent_config.onthrow, g_strdup (arg + 8));
907 } else if (strncmp (arg, "onthrow", 7) == 0) {
908 agent_config.onthrow = g_slist_append (agent_config.onthrow, g_strdup (""));
909 } else if (strncmp (arg, "help", 4) == 0) {
912 } else if (strncmp (arg, "timeout=", 8) == 0) {
913 agent_config.timeout = atoi (arg + 8);
914 } else if (strncmp (arg, "launch=", 7) == 0) {
915 agent_config.launch = g_strdup (arg + 7);
916 } else if (strncmp (arg, "embedding=", 10) == 0) {
917 agent_config.embedding = atoi (arg + 10) == 1;
918 } else if (strncmp (arg, "keepalive=", 10) == 0) {
919 agent_config.keepalive = atoi (arg + 10);
920 } else if (strncmp (arg, "setpgid=", 8) == 0) {
921 agent_config.setpgid = parse_flag ("setpgid", arg + 8);
928 if (agent_config.server && !agent_config.suspend) {
929 /* Waiting for deferred attachment */
930 agent_config.defer = TRUE;
931 if (agent_config.address == NULL) {
932 agent_config.address = g_strdup_printf ("0.0.0.0:%u", 56000 + (getpid () % 1000));
936 //agent_config.log_level = 0;
938 if (agent_config.transport == NULL) {
939 fprintf (stderr, "debugger-agent: The 'transport' option is mandatory.\n");
943 if (agent_config.address == NULL && !agent_config.server) {
944 fprintf (stderr, "debugger-agent: The 'address' option is mandatory.\n");
949 if (!strcmp (agent_config.transport, "dt_socket")) {
950 if (agent_config.address && parse_address (agent_config.address, &host, &port)) {
951 fprintf (stderr, "debugger-agent: The format of the 'address' options is '<host>:<port>'\n");
958 mono_debugger_agent_init (void)
960 mono_coop_mutex_init_recursive (&debug_mutex);
962 if (!agent_config.enabled)
967 /* Need to know whenever a thread has acquired the loader mutex */
968 mono_loader_lock_track_ownership (TRUE);
970 event_requests = g_ptr_array_new ();
972 mono_coop_mutex_init (&debugger_thread_exited_mutex);
973 mono_coop_cond_init (&debugger_thread_exited_cond);
975 mono_profiler_install ((MonoProfiler*)&debugger_profiler, runtime_shutdown);
976 mono_profiler_set_events ((MonoProfileFlags)(MONO_PROFILE_APPDOMAIN_EVENTS | MONO_PROFILE_THREADS | MONO_PROFILE_ASSEMBLY_EVENTS | MONO_PROFILE_JIT_COMPILATION | MONO_PROFILE_METHOD_EVENTS));
977 mono_profiler_install_runtime_initialized (runtime_initialized);
978 mono_profiler_install_appdomain (NULL, appdomain_load, appdomain_start_unload, appdomain_unload);
979 mono_profiler_install_thread (thread_startup, thread_end);
980 mono_profiler_install_assembly (NULL, assembly_load, assembly_unload, NULL);
981 mono_profiler_install_jit_end (jit_end);
983 mono_native_tls_alloc (&debugger_tls_id, NULL);
985 /* Needed by the hash_table_new_type () call below */
986 mono_gc_base_init ();
988 thread_to_tls = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_KEY_GC, MONO_ROOT_SOURCE_DEBUGGER, "thread-to-tls table");
989 MONO_GC_REGISTER_ROOT_FIXED (thread_to_tls, MONO_ROOT_SOURCE_DEBUGGER, "thread-to-tls table");
991 tid_to_thread = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_VALUE_GC, MONO_ROOT_SOURCE_DEBUGGER, "tid-to-thread table");
992 MONO_GC_REGISTER_ROOT_FIXED (tid_to_thread, MONO_ROOT_SOURCE_DEBUGGER, "tid-to-thread table");
994 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");
995 MONO_GC_REGISTER_ROOT_FIXED (tid_to_thread_obj, MONO_ROOT_SOURCE_DEBUGGER, "tid-to-thread object table");
997 pending_assembly_loads = g_ptr_array_new ();
998 domains = g_hash_table_new (mono_aligned_addr_hash, NULL);
1000 log_level = agent_config.log_level;
1002 embedding = agent_config.embedding;
1003 disconnected = TRUE;
1005 if (agent_config.log_file) {
1006 log_file = fopen (agent_config.log_file, "w+");
1008 fprintf (stderr, "Unable to create log file '%s': %s.\n", agent_config.log_file, strerror (errno));
1017 breakpoints_init ();
1020 mini_get_debug_options ()->gen_sdb_seq_points = TRUE;
1022 * This is needed because currently we don't handle liveness info.
1024 mini_get_debug_options ()->mdb_optimizations = TRUE;
1026 #ifndef MONO_ARCH_HAVE_CONTEXT_SET_INT_REG
1027 /* This is needed because we can't set local variables in registers yet */
1028 mono_disable_optimizations (MONO_OPT_LINEARS);
1032 * The stack walk done from thread_interrupt () needs to be signal safe, but it
1033 * isn't, since it can call into mono_aot_find_jit_info () which is not signal
1034 * safe (#3411). So load AOT info eagerly when the debugger is running as a
1037 mini_get_debug_options ()->load_aot_jit_info_eagerly = TRUE;
1040 if (agent_config.setpgid)
1044 if (!agent_config.onuncaught && !agent_config.onthrow)
1045 finish_agent_init (TRUE);
1049 * finish_agent_init:
1051 * Finish the initialization of the agent. This involves connecting the transport
1052 * and starting the agent thread. This is either done at startup, or
1053 * in response to some event like an unhandled exception.
1056 finish_agent_init (gboolean on_startup)
1060 if (InterlockedCompareExchange (&inited, 1, 0) == 1)
1063 if (agent_config.launch) {
1066 // FIXME: Generated address
1067 // FIXME: Races with transport_connect ()
1069 argv [0] = agent_config.launch;
1070 argv [1] = agent_config.transport;
1071 argv [2] = agent_config.address;
1074 res = g_spawn_async_with_pipes (NULL, argv, NULL, (GSpawnFlags)0, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
1076 fprintf (stderr, "Failed to execute '%s'.\n", agent_config.launch);
1081 MONO_PREPARE_BLOCKING;
1082 transport_connect (agent_config.address);
1083 MONO_FINISH_BLOCKING;
1086 /* Do some which is usually done after sending the VMStart () event */
1087 vm_start_event_sent = TRUE;
1088 start_debugger_thread ();
1093 mono_debugger_agent_cleanup (void)
1098 stop_debugger_thread ();
1100 breakpoints_cleanup ();
1109 #ifndef DISABLE_SOCKET_TRANSPORT
1114 * recv() + handle incomplete reads and EINTR
1117 socket_transport_recv (void *buf, int len)
1123 static gint32 last_keepalive;
1128 res = recv (fd, (char *) buf + total, len - total, flags);
1131 if (agent_config.keepalive) {
1132 gboolean need_keepalive = FALSE;
1133 if (res == -1 && get_last_sock_error () == MONO_EWOULDBLOCK) {
1134 need_keepalive = TRUE;
1135 } else if (res == -1) {
1136 /* This could happen if recv () is interrupted repeatedly */
1137 msecs = mono_msec_ticks ();
1138 if (msecs - last_keepalive >= agent_config.keepalive) {
1139 need_keepalive = TRUE;
1140 last_keepalive = msecs;
1143 if (need_keepalive) {
1144 process_profiler_event (EVENT_KIND_KEEPALIVE, NULL);
1148 } while ((res > 0 && total < len) || (res == -1 && get_last_sock_error () == MONO_EINTR));
1153 set_keepalive (void)
1158 if (!agent_config.keepalive || !conn_fd)
1161 tv.tv_sec = agent_config.keepalive / 1000;
1162 tv.tv_usec = (agent_config.keepalive % 1000) * 1000;
1164 result = setsockopt (conn_fd, SOL_SOCKET, SO_RCVTIMEO, (char *) &tv, sizeof(struct timeval));
1165 g_assert (result >= 0);
1169 socket_transport_accept (int socket_fd)
1171 conn_fd = accept (socket_fd, NULL, NULL);
1172 if (conn_fd == -1) {
1173 fprintf (stderr, "debugger-agent: Unable to listen on %d\n", socket_fd);
1175 DEBUG_PRINTF (1, "Accepted connection from client, connection fd=%d.\n", conn_fd);
1182 socket_transport_send (void *data, int len)
1187 res = send (conn_fd, data, len, 0);
1188 } while (res == -1 && get_last_sock_error () == MONO_EINTR);
1196 * socket_transport_connect:
1198 * Connect/Listen on HOST:PORT. If HOST is NULL, generate an address and listen on it.
1201 socket_transport_connect (const char *address)
1203 MonoAddressInfo *result;
1204 MonoAddressEntry *rp;
1205 int sfd = -1, s, res;
1209 if (agent_config.address) {
1210 res = parse_address (agent_config.address, &host, &port);
1211 g_assert (res == 0);
1222 mono_network_init ();
1224 /* Obtain address(es) matching host/port */
1225 s = mono_get_address_info (host, port, MONO_HINT_UNSPECIFIED, &result);
1227 fprintf (stderr, "debugger-agent: Unable to resolve %s:%d: %d\n", host, port, s); // FIXME add portable error conversion functions
1232 if (agent_config.server) {
1233 /* Wait for a connection */
1235 struct sockaddr_in addr;
1238 /* No address, generate one */
1239 sfd = socket (AF_INET, SOCK_STREAM, 0);
1242 /* This will bind the socket to a random port */
1243 res = listen (sfd, 16);
1245 fprintf (stderr, "debugger-agent: Unable to setup listening socket: %s\n", strerror (get_last_sock_error ()));
1250 addrlen = sizeof (addr);
1251 memset (&addr, 0, sizeof (addr));
1252 res = getsockname (sfd, (struct sockaddr*)&addr, &addrlen);
1253 g_assert (res == 0);
1255 host = (char*)"127.0.0.1";
1256 port = ntohs (addr.sin_port);
1258 /* Emit the address to stdout */
1259 /* FIXME: Should print another interface, not localhost */
1260 printf ("%s:%d\n", host, port);
1262 /* Listen on the provided address */
1263 for (rp = result->entries; rp != NULL; rp = rp->next) {
1264 MonoSocketAddress sockaddr;
1268 mono_socket_address_init (&sockaddr, &sock_len, rp->family, &rp->address, port);
1270 sfd = socket (rp->family, rp->socktype,
1275 if (setsockopt (sfd, SOL_SOCKET, SO_REUSEADDR, &n, sizeof(n)) == -1)
1278 res = bind (sfd, &sockaddr.addr, sock_len);
1282 res = listen (sfd, 16);
1289 mono_free_address_info (result);
1292 if (agent_config.defer)
1295 DEBUG_PRINTF (1, "Listening on %s:%d (timeout=%d ms)...\n", host, port, agent_config.timeout);
1297 if (agent_config.timeout) {
1302 tv.tv_usec = agent_config.timeout * 1000;
1304 FD_SET (sfd, &readfds);
1305 res = select (sfd + 1, &readfds, NULL, NULL, &tv);
1307 fprintf (stderr, "debugger-agent: Timed out waiting to connect.\n");
1312 MONO_PREPARE_BLOCKING;
1313 conn_fd = socket_transport_accept (sfd);
1314 MONO_FINISH_BLOCKING;
1318 DEBUG_PRINTF (1, "Accepted connection from client, socket fd=%d.\n", conn_fd);
1320 /* Connect to the specified address */
1321 /* FIXME: Respect the timeout */
1322 for (rp = result->entries; rp != NULL; rp = rp->next) {
1323 MonoSocketAddress sockaddr;
1326 mono_socket_address_init (&sockaddr, &sock_len, rp->family, &rp->address, port);
1328 sfd = socket (rp->family, rp->socktype,
1333 if (connect (sfd, &sockaddr.addr, sock_len) != -1)
1334 break; /* Success */
1340 fprintf (stderr, "debugger-agent: Unable to connect to %s:%d\n", host, port);
1346 mono_free_address_info (result);
1349 if (!transport_handshake ())
1354 socket_transport_close1 (void)
1356 /* This will interrupt the agent thread */
1357 /* Close the read part only so it can still send back replies */
1358 /* Also shut down the connection listener so that we can exit normally */
1360 /* SD_RECEIVE doesn't break the recv in the debugger thread */
1361 shutdown (conn_fd, SD_BOTH);
1362 shutdown (listen_fd, SD_BOTH);
1363 closesocket (listen_fd);
1365 shutdown (conn_fd, SHUT_RD);
1366 shutdown (listen_fd, SHUT_RDWR);
1372 socket_transport_close2 (void)
1375 shutdown (conn_fd, SD_BOTH);
1377 shutdown (conn_fd, SHUT_RDWR);
1382 register_socket_transport (void)
1384 DebuggerTransport trans;
1386 trans.name = "dt_socket";
1387 trans.connect = socket_transport_connect;
1388 trans.close1 = socket_transport_close1;
1389 trans.close2 = socket_transport_close2;
1390 trans.send = socket_transport_send;
1391 trans.recv = socket_transport_recv;
1393 register_transport (&trans);
1397 * socket_fd_transport_connect:
1401 socket_fd_transport_connect (const char *address)
1405 res = sscanf (address, "%d", &conn_fd);
1407 fprintf (stderr, "debugger-agent: socket-fd transport address is invalid: '%s'\n", address);
1411 if (!transport_handshake ())
1416 register_socket_fd_transport (void)
1418 DebuggerTransport trans;
1420 /* This is the same as the 'dt_socket' transport, but receives an already connected socket fd */
1421 trans.name = "socket-fd";
1422 trans.connect = socket_fd_transport_connect;
1423 trans.close1 = socket_transport_close1;
1424 trans.close2 = socket_transport_close2;
1425 trans.send = socket_transport_send;
1426 trans.recv = socket_transport_recv;
1428 register_transport (&trans);
1431 #endif /* DISABLE_SOCKET_TRANSPORT */
1437 #define MAX_TRANSPORTS 16
1439 static DebuggerTransport *transport;
1441 static DebuggerTransport transports [MAX_TRANSPORTS];
1442 static int ntransports;
1445 mono_debugger_agent_register_transport (DebuggerTransport *trans);
1448 mono_debugger_agent_register_transport (DebuggerTransport *trans)
1450 register_transport (trans);
1454 register_transport (DebuggerTransport *trans)
1456 g_assert (ntransports < MAX_TRANSPORTS);
1458 memcpy (&transports [ntransports], trans, sizeof (DebuggerTransport));
1463 transport_init (void)
1467 #ifndef DISABLE_SOCKET_TRANSPORT
1468 register_socket_transport ();
1469 register_socket_fd_transport ();
1472 for (i = 0; i < ntransports; ++i) {
1473 if (!strcmp (agent_config.transport, transports [i].name))
1476 if (i == ntransports) {
1477 fprintf (stderr, "debugger-agent: The supported values for the 'transport' option are: ");
1478 for (i = 0; i < ntransports; ++i)
1479 fprintf (stderr, "%s'%s'", i > 0 ? ", " : "", transports [i].name);
1480 fprintf (stderr, "\n");
1483 transport = &transports [i];
1487 transport_connect (const char *address)
1489 transport->connect (address);
1493 transport_close1 (void)
1495 transport->close1 ();
1499 transport_close2 (void)
1501 transport->close2 ();
1505 transport_send (void *buf, int len)
1507 return transport->send (buf, len);
1511 transport_recv (void *buf, int len)
1513 return transport->recv (buf, len);
1517 mono_debugger_agent_transport_handshake (void)
1519 return transport_handshake ();
1523 transport_handshake (void)
1525 char handshake_msg [128];
1529 disconnected = TRUE;
1531 /* Write handshake message */
1532 sprintf (handshake_msg, "DWP-Handshake");
1533 /* Must use try blocking as this can nest into code that runs blocking */
1534 MONO_PREPARE_BLOCKING;
1536 res = transport_send (handshake_msg, strlen (handshake_msg));
1537 } while (res == -1 && get_last_sock_error () == MONO_EINTR);
1538 MONO_FINISH_BLOCKING;
1540 g_assert (res != -1);
1543 MONO_PREPARE_BLOCKING;
1544 res = transport_recv (buf, strlen (handshake_msg));
1545 MONO_FINISH_BLOCKING;
1546 if ((res != strlen (handshake_msg)) || (memcmp (buf, handshake_msg, strlen (handshake_msg)) != 0)) {
1547 fprintf (stderr, "debugger-agent: DWP handshake failed.\n");
1552 * To support older clients, the client sends its protocol version after connecting
1553 * using a command. Until that is received, default to our protocol version.
1555 major_version = MAJOR_VERSION;
1556 minor_version = MINOR_VERSION;
1557 protocol_version_set = FALSE;
1559 #ifndef DISABLE_SOCKET_TRANSPORT
1560 // FIXME: Move this somewhere else
1562 * Set TCP_NODELAY on the socket so the client receives events/command
1563 * results immediately.
1567 int result = setsockopt (conn_fd,
1572 g_assert (result >= 0);
1578 disconnected = FALSE;
1583 stop_debugger_thread (void)
1588 MONO_PREPARE_BLOCKING;
1589 transport_close1 ();
1590 MONO_FINISH_BLOCKING;
1593 * Wait for the thread to exit.
1595 * If we continue with the shutdown without waiting for it, then the client might
1596 * not receive an answer to its last command like a resume.
1598 if (!is_debugger_thread ()) {
1600 mono_coop_mutex_lock (&debugger_thread_exited_mutex);
1601 if (!debugger_thread_exited)
1602 mono_coop_cond_wait (&debugger_thread_exited_cond, &debugger_thread_exited_mutex);
1603 mono_coop_mutex_unlock (&debugger_thread_exited_mutex);
1604 } while (!debugger_thread_exited);
1607 MONO_PREPARE_BLOCKING;
1608 transport_close2 ();
1609 MONO_FINISH_BLOCKING;
1613 start_debugger_thread (void)
1615 debugger_thread_handle = mono_threads_create_thread (debugger_thread, NULL, 0, 0, NULL);
1616 g_assert (debugger_thread_handle);
1620 * Functions to decode protocol data
1624 decode_byte (guint8 *buf, guint8 **endbuf, guint8 *limit)
1627 g_assert (*endbuf <= limit);
1632 decode_int (guint8 *buf, guint8 **endbuf, guint8 *limit)
1635 g_assert (*endbuf <= limit);
1637 return (((int)buf [0]) << 24) | (((int)buf [1]) << 16) | (((int)buf [2]) << 8) | (((int)buf [3]) << 0);
1640 static inline gint64
1641 decode_long (guint8 *buf, guint8 **endbuf, guint8 *limit)
1643 guint32 high = decode_int (buf, &buf, limit);
1644 guint32 low = decode_int (buf, &buf, limit);
1648 return ((((guint64)high) << 32) | ((guint64)low));
1652 decode_id (guint8 *buf, guint8 **endbuf, guint8 *limit)
1654 return decode_int (buf, endbuf, limit);
1658 decode_string (guint8 *buf, guint8 **endbuf, guint8 *limit)
1660 int len = decode_int (buf, &buf, limit);
1668 s = (char *)g_malloc (len + 1);
1671 memcpy (s, buf, len);
1680 * Functions to encode protocol data
1684 buffer_init (Buffer *buf, int size)
1686 buf->buf = (guint8 *)g_malloc (size);
1688 buf->end = buf->buf + size;
1692 buffer_len (Buffer *buf)
1694 return buf->p - buf->buf;
1698 buffer_make_room (Buffer *buf, int size)
1700 if (buf->end - buf->p < size) {
1701 int new_size = buf->end - buf->buf + size + 32;
1702 guint8 *p = (guint8 *)g_realloc (buf->buf, new_size);
1703 size = buf->p - buf->buf;
1706 buf->end = buf->buf + new_size;
1711 buffer_add_byte (Buffer *buf, guint8 val)
1713 buffer_make_room (buf, 1);
1719 buffer_add_short (Buffer *buf, guint32 val)
1721 buffer_make_room (buf, 2);
1722 buf->p [0] = (val >> 8) & 0xff;
1723 buf->p [1] = (val >> 0) & 0xff;
1728 buffer_add_int (Buffer *buf, guint32 val)
1730 buffer_make_room (buf, 4);
1731 buf->p [0] = (val >> 24) & 0xff;
1732 buf->p [1] = (val >> 16) & 0xff;
1733 buf->p [2] = (val >> 8) & 0xff;
1734 buf->p [3] = (val >> 0) & 0xff;
1739 buffer_add_long (Buffer *buf, guint64 l)
1741 buffer_add_int (buf, (l >> 32) & 0xffffffff);
1742 buffer_add_int (buf, (l >> 0) & 0xffffffff);
1746 buffer_add_id (Buffer *buf, int id)
1748 buffer_add_int (buf, (guint64)id);
1752 buffer_add_data (Buffer *buf, guint8 *data, int len)
1754 buffer_make_room (buf, len);
1755 memcpy (buf->p, data, len);
1760 buffer_add_string (Buffer *buf, const char *str)
1765 buffer_add_int (buf, 0);
1768 buffer_add_int (buf, len);
1769 buffer_add_data (buf, (guint8*)str, len);
1774 buffer_add_buffer (Buffer *buf, Buffer *data)
1776 buffer_add_data (buf, data->buf, buffer_len (data));
1780 buffer_free (Buffer *buf)
1786 send_packet (int command_set, int command, Buffer *data)
1792 id = InterlockedIncrement (&packet_id);
1794 len = data->p - data->buf + 11;
1795 buffer_init (&buf, len);
1796 buffer_add_int (&buf, len);
1797 buffer_add_int (&buf, id);
1798 buffer_add_byte (&buf, 0); /* flags */
1799 buffer_add_byte (&buf, command_set);
1800 buffer_add_byte (&buf, command);
1801 memcpy (buf.buf + 11, data->buf, data->p - data->buf);
1803 MONO_PREPARE_BLOCKING;
1804 res = transport_send (buf.buf, len);
1805 MONO_FINISH_BLOCKING;
1813 send_reply_packets (int npackets, ReplyPacket *packets)
1820 for (i = 0; i < npackets; ++i)
1821 len += buffer_len (packets [i].data) + 11;
1822 buffer_init (&buf, len);
1823 for (i = 0; i < npackets; ++i) {
1824 buffer_add_int (&buf, buffer_len (packets [i].data) + 11);
1825 buffer_add_int (&buf, packets [i].id);
1826 buffer_add_byte (&buf, 0x80); /* flags */
1827 buffer_add_byte (&buf, (packets [i].error >> 8) & 0xff);
1828 buffer_add_byte (&buf, packets [i].error);
1829 buffer_add_buffer (&buf, packets [i].data);
1832 MONO_PREPARE_BLOCKING;
1833 res = transport_send (buf.buf, len);
1834 MONO_FINISH_BLOCKING;
1842 send_reply_packet (int id, int error, Buffer *data)
1846 memset (&packet, 0, sizeof (ReplyPacket));
1848 packet.error = error;
1851 return send_reply_packets (1, &packet);
1855 send_buffered_reply_packets (void)
1859 send_reply_packets (nreply_packets, reply_packets);
1860 for (i = 0; i < nreply_packets; ++i)
1861 buffer_free (reply_packets [i].data);
1862 DEBUG_PRINTF (1, "[dbg] Sent %d buffered reply packets [at=%lx].\n", nreply_packets, (long)mono_100ns_ticks () / 10000);
1867 buffer_reply_packet (int id, int error, Buffer *data)
1871 if (nreply_packets == 128)
1872 send_buffered_reply_packets ();
1874 p = &reply_packets [nreply_packets];
1877 p->data = g_new0 (Buffer, 1);
1878 buffer_init (p->data, buffer_len (data));
1879 buffer_add_buffer (p->data, data);
1888 * Represents an object accessible by the debugger client.
1891 /* Unique id used in the wire protocol to refer to objects */
1894 * A weakref gc handle pointing to the object. The gc handle is used to
1895 * detect if the object was garbage collected.
1900 /* Maps objid -> ObjRef */
1901 /* Protected by the loader lock */
1902 static GHashTable *objrefs;
1903 /* Protected by the loader lock */
1904 static GHashTable *obj_to_objref;
1905 /* Protected by the dbg lock */
1906 static MonoGHashTable *suspended_objs;
1909 free_objref (gpointer value)
1911 ObjRef *o = (ObjRef *)value;
1913 mono_gchandle_free (o->handle);
1921 objrefs = g_hash_table_new_full (NULL, NULL, NULL, free_objref);
1922 obj_to_objref = g_hash_table_new (NULL, NULL);
1923 suspended_objs = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_KEY_GC, MONO_ROOT_SOURCE_DEBUGGER, "suspended objects table");
1924 MONO_GC_REGISTER_ROOT_FIXED (suspended_objs, MONO_ROOT_SOURCE_DEBUGGER, "suspended objects table");
1928 objrefs_cleanup (void)
1930 g_hash_table_destroy (objrefs);
1935 * Return an ObjRef for OBJ.
1938 get_objref (MonoObject *obj)
1941 GSList *reflist = NULL, *l;
1947 if (suspend_count) {
1949 * Have to keep object refs created during suspensions alive for the duration of the suspension, so GCs during invokes don't collect them.
1952 mono_g_hash_table_insert (suspended_objs, obj, NULL);
1956 mono_loader_lock ();
1958 /* FIXME: The tables can grow indefinitely */
1960 if (mono_gc_is_moving ()) {
1962 * Objects can move, so use a hash table mapping hash codes to lists of
1963 * ObjRef structures.
1965 hash = mono_object_hash (obj);
1967 reflist = (GSList *)g_hash_table_lookup (obj_to_objref, GINT_TO_POINTER (hash));
1968 for (l = reflist; l; l = l->next) {
1969 ref = (ObjRef *)l->data;
1970 if (ref && mono_gchandle_get_target (ref->handle) == obj) {
1971 mono_loader_unlock ();
1976 /* Use a hash table with masked pointers to internalize object references */
1977 ref = (ObjRef *)g_hash_table_lookup (obj_to_objref, GINT_TO_POINTER (~((gsize)obj)));
1978 /* ref might refer to a different object with the same addr which was GCd */
1979 if (ref && mono_gchandle_get_target (ref->handle) == obj) {
1980 mono_loader_unlock ();
1985 ref = g_new0 (ObjRef, 1);
1986 ref->id = InterlockedIncrement (&objref_id);
1987 ref->handle = mono_gchandle_new_weakref (obj, FALSE);
1989 g_hash_table_insert (objrefs, GINT_TO_POINTER (ref->id), ref);
1991 if (mono_gc_is_moving ()) {
1992 reflist = g_slist_append (reflist, ref);
1993 g_hash_table_insert (obj_to_objref, GINT_TO_POINTER (hash), reflist);
1995 g_hash_table_insert (obj_to_objref, GINT_TO_POINTER (~((gsize)obj)), ref);
1998 mono_loader_unlock ();
2004 true_pred (gpointer key, gpointer value, gpointer user_data)
2010 clear_suspended_objs (void)
2013 mono_g_hash_table_foreach_remove (suspended_objs, true_pred, NULL);
2018 get_objid (MonoObject *obj)
2020 return get_objref (obj)->id;
2024 * Set OBJ to the object identified by OBJID.
2025 * Returns 0 or an error code if OBJID is invalid or the object has been garbage
2029 get_object_allow_null (int objid, MonoObject **obj)
2039 return ERR_INVALID_OBJECT;
2041 mono_loader_lock ();
2043 ref = (ObjRef *)g_hash_table_lookup (objrefs, GINT_TO_POINTER (objid));
2046 *obj = mono_gchandle_get_target (ref->handle);
2047 mono_loader_unlock ();
2049 return ERR_INVALID_OBJECT;
2052 mono_loader_unlock ();
2053 return ERR_INVALID_OBJECT;
2058 get_object (int objid, MonoObject **obj)
2060 ErrorCode err = get_object_allow_null (objid, obj);
2062 if (err != ERR_NONE)
2065 return ERR_INVALID_OBJECT;
2070 decode_objid (guint8 *buf, guint8 **endbuf, guint8 *limit)
2072 return decode_id (buf, endbuf, limit);
2076 buffer_add_objid (Buffer *buf, MonoObject *o)
2078 buffer_add_id (buf, get_objid (o));
2097 * Represents a runtime structure accessible to the debugger client
2100 /* Unique id used in the wire protocol */
2102 /* Domain of the runtime structure, NULL if the domain was unloaded */
2109 MonoAssembly *assembly;
2110 MonoClassField *field;
2112 MonoProperty *property;
2117 /* Maps runtime structure -> Id */
2118 /* Protected by the dbg lock */
2119 GHashTable *val_to_id [ID_NUM];
2120 /* Classes whose class load event has been sent */
2121 /* Protected by the loader lock */
2122 GHashTable *loaded_classes;
2123 /* Maps MonoClass->GPtrArray of file names */
2124 GHashTable *source_files;
2125 /* Maps source file basename -> GSList of classes */
2126 GHashTable *source_file_to_class;
2127 /* Same with ignore-case */
2128 GHashTable *source_file_to_class_ignorecase;
2132 /* Protected by the dbg lock */
2133 static GPtrArray *ids [ID_NUM];
2140 for (i = 0; i < ID_NUM; ++i)
2141 ids [i] = g_ptr_array_new ();
2149 for (i = 0; i < ID_NUM; ++i) {
2151 for (j = 0; j < ids [i]->len; ++j)
2152 g_free (g_ptr_array_index (ids [i], j));
2153 g_ptr_array_free (ids [i], TRUE);
2160 mono_debugger_agent_free_domain_info (MonoDomain *domain)
2162 AgentDomainInfo *info = (AgentDomainInfo *)domain_jit_info (domain)->agent_info;
2164 GHashTableIter iter;
2165 GPtrArray *file_names;
2170 for (i = 0; i < ID_NUM; ++i)
2171 if (info->val_to_id [i])
2172 g_hash_table_destroy (info->val_to_id [i]);
2173 g_hash_table_destroy (info->loaded_classes);
2175 g_hash_table_iter_init (&iter, info->source_files);
2176 while (g_hash_table_iter_next (&iter, NULL, (void**)&file_names)) {
2177 for (i = 0; i < file_names->len; ++i)
2178 g_free (g_ptr_array_index (file_names, i));
2179 g_ptr_array_free (file_names, TRUE);
2182 g_hash_table_iter_init (&iter, info->source_file_to_class);
2183 while (g_hash_table_iter_next (&iter, (void**)&basename, (void**)&l)) {
2188 g_hash_table_iter_init (&iter, info->source_file_to_class_ignorecase);
2189 while (g_hash_table_iter_next (&iter, (void**)&basename, (void**)&l)) {
2197 domain_jit_info (domain)->agent_info = NULL;
2199 /* Clear ids referencing structures in the domain */
2201 for (i = 0; i < ID_NUM; ++i) {
2203 for (j = 0; j < ids [i]->len; ++j) {
2204 Id *id = (Id *)g_ptr_array_index (ids [i], j);
2205 if (id->domain == domain)
2212 mono_loader_lock ();
2213 g_hash_table_remove (domains, domain);
2214 mono_loader_unlock ();
2217 static AgentDomainInfo*
2218 get_agent_domain_info (MonoDomain *domain)
2220 AgentDomainInfo *info = NULL;
2222 mono_domain_lock (domain);
2224 info = (AgentDomainInfo *)domain_jit_info (domain)->agent_info;
2226 info = g_new0 (AgentDomainInfo, 1);
2227 domain_jit_info (domain)->agent_info = info;
2228 info->loaded_classes = g_hash_table_new (mono_aligned_addr_hash, NULL);
2229 info->source_files = g_hash_table_new (mono_aligned_addr_hash, NULL);
2230 info->source_file_to_class = g_hash_table_new (g_str_hash, g_str_equal);
2231 info->source_file_to_class_ignorecase = g_hash_table_new (g_str_hash, g_str_equal);
2234 mono_domain_unlock (domain);
2240 get_id (MonoDomain *domain, IdType type, gpointer val)
2243 AgentDomainInfo *info;
2248 info = get_agent_domain_info (domain);
2252 if (info->val_to_id [type] == NULL)
2253 info->val_to_id [type] = g_hash_table_new (mono_aligned_addr_hash, NULL);
2255 id = (Id *)g_hash_table_lookup (info->val_to_id [type], val);
2261 id = g_new0 (Id, 1);
2263 id->id = ids [type]->len + 1;
2264 id->domain = domain;
2267 g_hash_table_insert (info->val_to_id [type], val, id);
2268 g_ptr_array_add (ids [type], id);
2275 static inline gpointer
2276 decode_ptr_id (guint8 *buf, guint8 **endbuf, guint8 *limit, IdType type, MonoDomain **domain, ErrorCode *err)
2280 int id = decode_id (buf, endbuf, limit);
2289 // FIXME: error handling
2291 g_assert (id > 0 && id <= ids [type]->len);
2293 res = (Id *)g_ptr_array_index (ids [type], GPOINTER_TO_INT (id - 1));
2296 if (res->domain == NULL) {
2297 DEBUG_PRINTF (1, "ERR_UNLOADED, id=%d, type=%d.\n", id, type);
2298 *err = ERR_UNLOADED;
2303 *domain = res->domain;
2305 return res->data.val;
2309 buffer_add_ptr_id (Buffer *buf, MonoDomain *domain, IdType type, gpointer val)
2311 int id = get_id (domain, type, val);
2313 buffer_add_id (buf, id);
2317 static inline MonoClass*
2318 decode_typeid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2322 klass = (MonoClass *)decode_ptr_id (buf, endbuf, limit, ID_TYPE, domain, err);
2323 if (G_UNLIKELY (log_level >= 2) && klass) {
2326 s = mono_type_full_name (&klass->byval_arg);
2327 DEBUG_PRINTF (2, "[dbg] recv class [%s]\n", s);
2333 static inline MonoAssembly*
2334 decode_assemblyid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2336 return (MonoAssembly *)decode_ptr_id (buf, endbuf, limit, ID_ASSEMBLY, domain, err);
2339 static inline MonoImage*
2340 decode_moduleid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2342 return (MonoImage *)decode_ptr_id (buf, endbuf, limit, ID_MODULE, domain, err);
2345 static inline MonoMethod*
2346 decode_methodid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2350 m = (MonoMethod *)decode_ptr_id (buf, endbuf, limit, ID_METHOD, domain, err);
2351 if (G_UNLIKELY (log_level >= 2) && m) {
2354 s = mono_method_full_name (m, TRUE);
2355 DEBUG_PRINTF (2, "[dbg] recv method [%s]\n", s);
2361 static inline MonoClassField*
2362 decode_fieldid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2364 return (MonoClassField *)decode_ptr_id (buf, endbuf, limit, ID_FIELD, domain, err);
2367 static inline MonoDomain*
2368 decode_domainid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2370 return (MonoDomain *)decode_ptr_id (buf, endbuf, limit, ID_DOMAIN, domain, err);
2373 static inline MonoProperty*
2374 decode_propertyid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2376 return (MonoProperty *)decode_ptr_id (buf, endbuf, limit, ID_PROPERTY, domain, err);
2380 buffer_add_typeid (Buffer *buf, MonoDomain *domain, MonoClass *klass)
2382 buffer_add_ptr_id (buf, domain, ID_TYPE, klass);
2383 if (G_UNLIKELY (log_level >= 2) && klass) {
2386 s = mono_type_full_name (&klass->byval_arg);
2387 if (is_debugger_thread ())
2388 DEBUG_PRINTF (2, "[dbg] send class [%s]\n", s);
2390 DEBUG_PRINTF (2, "[%p] send class [%s]\n", (gpointer)mono_native_thread_id_get (), s);
2396 buffer_add_methodid (Buffer *buf, MonoDomain *domain, MonoMethod *method)
2398 buffer_add_ptr_id (buf, domain, ID_METHOD, method);
2399 if (G_UNLIKELY (log_level >= 2) && method) {
2402 s = mono_method_full_name (method, 1);
2403 DEBUG_PRINTF (2, "[dbg] send method [%s]\n", s);
2409 buffer_add_assemblyid (Buffer *buf, MonoDomain *domain, MonoAssembly *assembly)
2413 id = buffer_add_ptr_id (buf, domain, ID_ASSEMBLY, assembly);
2414 if (G_UNLIKELY (log_level >= 2) && assembly)
2415 DEBUG_PRINTF (2, "[dbg] send assembly [%s][%s][%d]\n", assembly->aname.name, domain->friendly_name, id);
2419 buffer_add_moduleid (Buffer *buf, MonoDomain *domain, MonoImage *image)
2421 buffer_add_ptr_id (buf, domain, ID_MODULE, image);
2425 buffer_add_fieldid (Buffer *buf, MonoDomain *domain, MonoClassField *field)
2427 buffer_add_ptr_id (buf, domain, ID_FIELD, field);
2431 buffer_add_propertyid (Buffer *buf, MonoDomain *domain, MonoProperty *property)
2433 buffer_add_ptr_id (buf, domain, ID_PROPERTY, property);
2437 buffer_add_domainid (Buffer *buf, MonoDomain *domain)
2439 buffer_add_ptr_id (buf, domain, ID_DOMAIN, domain);
2442 static void invoke_method (void);
2449 * save_thread_context:
2451 * Set CTX as the current threads context which is used for computing stack traces.
2452 * This function is signal-safe.
2455 save_thread_context (MonoContext *ctx)
2457 DebuggerTlsData *tls;
2459 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
2463 mono_thread_state_init_from_monoctx (&tls->context, ctx);
2465 mono_thread_state_init_from_current (&tls->context);
2468 /* Number of threads suspended */
2470 * If this is equal to the size of thread_to_tls, the runtime is considered
2473 static gint32 threads_suspend_count;
2475 static MonoCoopMutex suspend_mutex;
2477 /* Cond variable used to wait for suspend_count becoming 0 */
2478 static MonoCoopCond suspend_cond;
2480 /* Semaphore used to wait for a thread becoming suspended */
2481 static MonoCoopSem suspend_sem;
2486 mono_coop_mutex_init (&suspend_mutex);
2487 mono_coop_cond_init (&suspend_cond);
2488 mono_coop_sem_init (&suspend_sem, 0);
2493 StackFrameInfo last_frame;
2494 gboolean last_frame_set;
2498 } GetLastFrameUserData;
2501 get_last_frame (StackFrameInfo *info, MonoContext *ctx, gpointer user_data)
2503 GetLastFrameUserData *data = (GetLastFrameUserData *)user_data;
2505 if (info->type == FRAME_TYPE_MANAGED_TO_NATIVE || info->type == FRAME_TYPE_TRAMPOLINE)
2508 if (!data->last_frame_set) {
2509 /* Store the last frame */
2510 memcpy (&data->last_frame, info, sizeof (StackFrameInfo));
2511 data->last_frame_set = TRUE;
2514 /* Store the context/lmf for the frame above the last frame */
2515 memcpy (&data->ctx, ctx, sizeof (MonoContext));
2516 data->lmf = info->lmf;
2517 data->domain = info->domain;
2523 copy_unwind_state_from_frame_data (MonoThreadUnwindState *to, GetLastFrameUserData *data, gpointer jit_tls)
2525 memcpy (&to->ctx, &data->ctx, sizeof (MonoContext));
2527 to->unwind_data [MONO_UNWIND_DATA_DOMAIN] = data->domain;
2528 to->unwind_data [MONO_UNWIND_DATA_LMF] = data->lmf;
2529 to->unwind_data [MONO_UNWIND_DATA_JIT_TLS] = jit_tls;
2536 * Process interruption of a thread. This should be signal safe.
2538 * This always runs in the debugger thread.
2541 thread_interrupt (DebuggerTlsData *tls, MonoThreadInfo *info, MonoJitInfo *ji)
2544 MonoNativeThreadId tid;
2548 ip = MONO_CONTEXT_GET_IP (&mono_thread_info_get_suspend_state (info)->ctx);
2549 tid = mono_thread_info_get_tid (info);
2551 // FIXME: Races when the thread leaves managed code before hitting a single step
2554 if (ji && !ji->is_trampoline) {
2555 /* Running managed code, will be suspended by the single step code */
2556 DEBUG_PRINTF (1, "[%p] Received interrupt while at %s(%p), continuing.\n", (gpointer)(gsize)tid, jinfo_get_method (ji)->name, ip);
2559 * Running native code, will be suspended when it returns to/enters
2560 * managed code. Treat it as already suspended.
2561 * This might interrupt the code in process_single_step_inner (), we use the
2562 * tls->suspending flag to avoid races when that happens.
2564 if (!tls->suspended && !tls->suspending) {
2565 GetLastFrameUserData data;
2567 // FIXME: printf is not signal safe, but this is only used during
2568 // debugger debugging
2570 DEBUG_PRINTF (1, "[%p] Received interrupt while at %p, treating as suspended.\n", (gpointer)(gsize)tid, ip);
2571 //save_thread_context (&ctx);
2574 /* Already terminated */
2578 * We are in a difficult position: we want to be able to provide stack
2579 * traces for this thread, but we can't use the current ctx+lmf, since
2580 * the thread is still running, so it might return to managed code,
2581 * making these invalid.
2582 * So we start a stack walk and save the first frame, along with the
2583 * parent frame's ctx+lmf. This (hopefully) works because the thread will be
2584 * suspended when it returns to managed code, so the parent's ctx should
2587 data.last_frame_set = FALSE;
2588 mono_get_eh_callbacks ()->mono_walk_stack_with_state (get_last_frame, mono_thread_info_get_suspend_state (info), MONO_UNWIND_SIGNAL_SAFE, &data);
2589 if (data.last_frame_set) {
2590 gpointer jit_tls = ((MonoThreadInfo*)tls->thread->thread_info)->jit_data;
2592 memcpy (&tls->async_last_frame, &data.last_frame, sizeof (StackFrameInfo));
2594 copy_unwind_state_from_frame_data (&tls->async_state, &data, jit_tls);
2595 copy_unwind_state_from_frame_data (&tls->context, &data, jit_tls);
2597 tls->async_state.valid = FALSE;
2600 mono_memory_barrier ();
2602 tls->suspended = TRUE;
2603 mono_coop_sem_post (&suspend_sem);
2609 * reset_native_thread_suspend_state:
2611 * Reset the suspended flag and state on native threads
2614 reset_native_thread_suspend_state (gpointer key, gpointer value, gpointer user_data)
2616 DebuggerTlsData *tls = (DebuggerTlsData *)value;
2618 if (!tls->really_suspended && tls->suspended) {
2619 tls->suspended = FALSE;
2621 * The thread might still be running if it was executing native code, so the state won't be invalided by
2622 * suspend_current ().
2624 tls->context.valid = FALSE;
2625 tls->async_state.valid = FALSE;
2626 invalidate_frames (tls);
2631 DebuggerTlsData *tls;
2632 gboolean valid_info;
2635 static SuspendThreadResult
2636 debugger_interrupt_critical (MonoThreadInfo *info, gpointer user_data)
2638 InterruptData *data = (InterruptData *)user_data;
2641 data->valid_info = TRUE;
2642 ji = mono_jit_info_table_find_internal (
2643 (MonoDomain *)mono_thread_info_get_suspend_state (info)->unwind_data [MONO_UNWIND_DATA_DOMAIN],
2644 (char *)MONO_CONTEXT_GET_IP (&mono_thread_info_get_suspend_state (info)->ctx),
2648 /* This is signal safe */
2649 thread_interrupt (data->tls, info, ji);
2650 return MonoResumeThread;
2656 * Notify a thread that it needs to suspend.
2659 notify_thread (gpointer key, gpointer value, gpointer user_data)
2661 MonoInternalThread *thread = (MonoInternalThread *)key;
2662 DebuggerTlsData *tls = (DebuggerTlsData *)value;
2663 MonoNativeThreadId tid = MONO_UINT_TO_NATIVE_THREAD_ID (thread->tid);
2665 if (mono_native_thread_id_equals (mono_native_thread_id_get (), tid) || tls->terminated)
2668 DEBUG_PRINTF (1, "[%p] Interrupting %p...\n", (gpointer)mono_native_thread_id_get (), (gpointer)tid);
2670 /* This is _not_ equivalent to ves_icall_System_Threading_Thread_Abort () */
2671 InterruptData interrupt_data = { 0 };
2672 interrupt_data.tls = tls;
2674 mono_thread_info_safe_suspend_and_run ((MonoNativeThreadId)(gpointer)(gsize)thread->tid, FALSE, debugger_interrupt_critical, &interrupt_data);
2675 if (!interrupt_data.valid_info) {
2676 DEBUG_PRINTF (1, "[%p] mono_thread_info_suspend_sync () failed for %p...\n", (gpointer)mono_native_thread_id_get (), (gpointer)tid);
2678 * Attached thread which died without detaching.
2680 tls->terminated = TRUE;
2685 process_suspend (DebuggerTlsData *tls, MonoContext *ctx)
2687 guint8 *ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
2691 if (mono_loader_lock_is_owned_by_self ()) {
2693 * Shortcut for the check in suspend_current (). This speeds up processing
2694 * when executing long running code inside the loader lock, i.e. assembly load
2700 if (is_debugger_thread ())
2703 /* Prevent races with mono_debugger_agent_thread_interrupt () */
2704 if (suspend_count - tls->resume_count > 0)
2705 tls->suspending = TRUE;
2707 DEBUG_PRINTF (1, "[%p] Received single step event for suspending.\n", (gpointer)mono_native_thread_id_get ());
2709 if (suspend_count - tls->resume_count == 0) {
2711 * We are executing a single threaded invoke but the single step for
2712 * suspending is still active.
2713 * FIXME: This slows down single threaded invokes.
2715 DEBUG_PRINTF (1, "[%p] Ignored during single threaded invoke.\n", (gpointer)mono_native_thread_id_get ());
2719 ji = mini_jit_info_table_find (mono_domain_get (), (char*)ip, NULL);
2721 /* Can't suspend in these methods */
2722 method = jinfo_get_method (ji);
2723 if (method->klass == mono_defaults.string_class && (!strcmp (method->name, "memset") || strstr (method->name, "memcpy")))
2726 save_thread_context (ctx);
2734 * Increase the suspend count of the VM. While the suspend count is greater
2735 * than 0, runtime threads are suspended at certain points during execution.
2740 mono_loader_lock ();
2742 mono_coop_mutex_lock (&suspend_mutex);
2746 DEBUG_PRINTF (1, "[%p] Suspending vm...\n", (gpointer)mono_native_thread_id_get ());
2748 if (suspend_count == 1) {
2749 // FIXME: Is it safe to call this inside the lock ?
2750 start_single_stepping ();
2751 mono_g_hash_table_foreach (thread_to_tls, notify_thread, NULL);
2754 mono_coop_mutex_unlock (&suspend_mutex);
2756 if (suspend_count == 1)
2758 * Suspend creation of new threadpool threads, since they cannot run
2760 mono_threadpool_ms_suspend ();
2762 mono_loader_unlock ();
2768 * Decrease the suspend count of the VM. If the count reaches 0, runtime threads
2776 g_assert (is_debugger_thread ());
2778 mono_loader_lock ();
2780 mono_coop_mutex_lock (&suspend_mutex);
2782 g_assert (suspend_count > 0);
2785 DEBUG_PRINTF (1, "[%p] Resuming vm, suspend count=%d...\n", (gpointer)mono_native_thread_id_get (), suspend_count);
2787 if (suspend_count == 0) {
2788 // FIXME: Is it safe to call this inside the lock ?
2789 stop_single_stepping ();
2790 mono_g_hash_table_foreach (thread_to_tls, reset_native_thread_suspend_state, NULL);
2793 /* Signal this even when suspend_count > 0, since some threads might have resume_count > 0 */
2794 err = mono_coop_cond_broadcast (&suspend_cond);
2795 g_assert (err == 0);
2797 mono_coop_mutex_unlock (&suspend_mutex);
2798 //g_assert (err == 0);
2800 if (suspend_count == 0)
2801 mono_threadpool_ms_resume ();
2803 mono_loader_unlock ();
2809 * Resume just one thread.
2812 resume_thread (MonoInternalThread *thread)
2815 DebuggerTlsData *tls;
2817 g_assert (is_debugger_thread ());
2819 mono_loader_lock ();
2821 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
2824 mono_coop_mutex_lock (&suspend_mutex);
2826 g_assert (suspend_count > 0);
2828 DEBUG_PRINTF (1, "[sdb] Resuming thread %p...\n", (gpointer)(gssize)thread->tid);
2830 tls->resume_count += suspend_count;
2833 * Signal suspend_count without decreasing suspend_count, the threads will wake up
2834 * but only the one whose resume_count field is > 0 will be resumed.
2836 err = mono_coop_cond_broadcast (&suspend_cond);
2837 g_assert (err == 0);
2839 mono_coop_mutex_unlock (&suspend_mutex);
2840 //g_assert (err == 0);
2842 mono_loader_unlock ();
2846 free_frames (StackFrame **frames, int nframes)
2850 for (i = 0; i < nframes; ++i) {
2851 if (frames [i]->jit)
2852 mono_debug_free_method_jit_info (frames [i]->jit);
2853 g_free (frames [i]);
2859 invalidate_frames (DebuggerTlsData *tls)
2862 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
2865 free_frames (tls->frames, tls->frame_count);
2866 tls->frame_count = 0;
2869 free_frames (tls->restore_frames, tls->restore_frame_count);
2870 tls->restore_frame_count = 0;
2871 tls->restore_frames = NULL;
2877 * Suspend the current thread until the runtime is resumed. If the thread has a
2878 * pending invoke, then the invoke is executed before this function returns.
2881 suspend_current (void)
2883 DebuggerTlsData *tls;
2886 g_assert (!is_debugger_thread ());
2888 if (mono_loader_lock_is_owned_by_self ()) {
2890 * If we own the loader mutex, can't suspend until we release it, since the
2891 * whole runtime can deadlock otherwise.
2896 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
2899 mono_coop_mutex_lock (&suspend_mutex);
2901 tls->suspending = FALSE;
2902 tls->really_suspended = TRUE;
2904 if (!tls->suspended) {
2905 tls->suspended = TRUE;
2906 mono_coop_sem_post (&suspend_sem);
2909 DEBUG_PRINTF (1, "[%p] Suspended.\n", (gpointer)mono_native_thread_id_get ());
2911 while (suspend_count - tls->resume_count > 0) {
2912 err = mono_coop_cond_wait (&suspend_cond, &suspend_mutex);
2913 g_assert (err == 0);
2916 tls->suspended = FALSE;
2917 tls->really_suspended = FALSE;
2919 threads_suspend_count --;
2921 mono_coop_mutex_unlock (&suspend_mutex);
2923 DEBUG_PRINTF (1, "[%p] Resumed.\n", (gpointer)mono_native_thread_id_get ());
2925 if (tls->pending_invoke) {
2926 /* Save the original context */
2927 tls->pending_invoke->has_ctx = TRUE;
2928 tls->pending_invoke->ctx = tls->context.ctx;
2933 /* The frame info becomes invalid after a resume */
2934 tls->context.valid = FALSE;
2935 tls->async_state.valid = FALSE;
2936 invalidate_frames (tls);
2940 count_thread (gpointer key, gpointer value, gpointer user_data)
2942 DebuggerTlsData *tls = (DebuggerTlsData *)value;
2944 if (!tls->suspended && !tls->terminated)
2945 *(int*)user_data = *(int*)user_data + 1;
2949 count_threads_to_wait_for (void)
2953 mono_loader_lock ();
2954 mono_g_hash_table_foreach (thread_to_tls, count_thread, &count);
2955 mono_loader_unlock ();
2963 * Wait until the runtime is completely suspended.
2966 wait_for_suspend (void)
2968 int nthreads, nwait, err;
2969 gboolean waited = FALSE;
2971 // FIXME: Threads starting/stopping ?
2972 mono_loader_lock ();
2973 nthreads = mono_g_hash_table_size (thread_to_tls);
2974 mono_loader_unlock ();
2977 nwait = count_threads_to_wait_for ();
2979 DEBUG_PRINTF (1, "Waiting for %d(%d) threads to suspend...\n", nwait, nthreads);
2980 err = mono_coop_sem_wait (&suspend_sem, MONO_SEM_FLAGS_NONE);
2981 g_assert (err == 0);
2989 DEBUG_PRINTF (1, "%d threads suspended.\n", nthreads);
2995 * Return whenever the runtime is suspended.
3000 return count_threads_to_wait_for () == 0;
3004 no_seq_points_found (MonoMethod *method, int offset)
3007 * This can happen in full-aot mode with assemblies AOTed without the 'soft-debug' option to save space.
3009 printf ("Unable to find seq points for method '%s', offset 0x%x.\n", mono_method_full_name (method, TRUE), offset);
3013 DebuggerTlsData *tls;
3015 } ComputeFramesUserData;
3018 process_frame (StackFrameInfo *info, MonoContext *ctx, gpointer user_data)
3020 ComputeFramesUserData *ud = (ComputeFramesUserData *)user_data;
3022 MonoMethod *method, *actual_method, *api_method;
3026 if (info->type != FRAME_TYPE_MANAGED) {
3027 if (info->type == FRAME_TYPE_DEBUGGER_INVOKE) {
3028 /* Mark the last frame as an invoke frame */
3030 ((StackFrame*)g_slist_last (ud->frames)->data)->flags |= FRAME_FLAG_DEBUGGER_INVOKE;
3036 method = jinfo_get_method (info->ji);
3038 method = info->method;
3039 actual_method = info->actual_method;
3040 api_method = method;
3045 if (!method || (method->wrapper_type && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD && method->wrapper_type != MONO_WRAPPER_MANAGED_TO_NATIVE))
3048 if (info->il_offset == -1) {
3049 /* mono_debug_il_offset_from_address () doesn't seem to be precise enough (#2092) */
3050 if (ud->frames == NULL) {
3051 if (mono_find_prev_seq_point_for_native_offset (info->domain, method, info->native_offset, NULL, &sp))
3052 info->il_offset = sp.il_offset;
3054 if (info->il_offset == -1)
3055 info->il_offset = mono_debug_il_offset_from_address (method, info->domain, info->native_offset);
3058 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);
3060 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
3061 if (!CHECK_PROTOCOL_VERSION (2, 17))
3062 /* Older clients can't handle this flag */
3064 api_method = mono_marshal_method_from_wrapper (method);
3067 actual_method = api_method;
3068 flags |= FRAME_FLAG_NATIVE_TRANSITION;
3071 frame = g_new0 (StackFrame, 1);
3072 frame->method = method;
3073 frame->actual_method = actual_method;
3074 frame->api_method = api_method;
3075 frame->il_offset = info->il_offset;
3076 frame->native_offset = info->native_offset;
3077 frame->flags = flags;
3078 frame->ji = info->ji;
3079 if (info->reg_locations)
3080 memcpy (frame->reg_locations, info->reg_locations, MONO_MAX_IREGS * sizeof (mgreg_t*));
3083 frame->has_ctx = TRUE;
3085 frame->domain = info->domain;
3087 ud->frames = g_slist_append (ud->frames, frame);
3093 process_filter_frame (StackFrameInfo *info, MonoContext *ctx, gpointer user_data)
3095 ComputeFramesUserData *ud = (ComputeFramesUserData *)user_data;
3098 * 'tls->filter_ctx' is the location of the throw site.
3100 * mono_walk_stack() will never actually hit the throw site, but unwind
3101 * directly from the filter to the call site; we abort stack unwinding here
3102 * once this happens and resume from the throw site.
3105 if (MONO_CONTEXT_GET_SP (ctx) >= MONO_CONTEXT_GET_SP (&ud->tls->filter_state.ctx))
3108 return process_frame (info, ctx, user_data);
3112 * Return a malloc-ed list of StackFrame structures.
3115 compute_frame_info_from (MonoInternalThread *thread, DebuggerTlsData *tls, MonoThreadUnwindState *state, int *out_nframes)
3117 ComputeFramesUserData user_data;
3118 MonoUnwindOptions opts = (MonoUnwindOptions)(MONO_UNWIND_DEFAULT | MONO_UNWIND_REG_LOCATIONS);
3123 user_data.tls = tls;
3124 user_data.frames = NULL;
3126 mono_walk_stack_with_state (process_frame, state, opts, &user_data);
3128 nframes = g_slist_length (user_data.frames);
3129 res = g_new0 (StackFrame*, nframes);
3130 l = user_data.frames;
3131 for (i = 0; i < nframes; ++i) {
3132 res [i] = (StackFrame *)l->data;
3135 *out_nframes = nframes;
3141 compute_frame_info (MonoInternalThread *thread, DebuggerTlsData *tls)
3143 ComputeFramesUserData user_data;
3145 int i, findex, new_frame_count;
3146 StackFrame **new_frames, *f;
3147 MonoUnwindOptions opts = (MonoUnwindOptions)(MONO_UNWIND_DEFAULT | MONO_UNWIND_REG_LOCATIONS);
3149 // FIXME: Locking on tls
3150 if (tls->frames && tls->frames_up_to_date)
3153 DEBUG_PRINTF (1, "Frames for %p(tid=%lx):\n", thread, (glong)thread->tid);
3155 user_data.tls = tls;
3156 user_data.frames = NULL;
3157 if (tls->terminated) {
3158 tls->frame_count = 0;
3160 } if (!tls->really_suspended && tls->async_state.valid) {
3161 /* Have to use the state saved by the signal handler */
3162 process_frame (&tls->async_last_frame, NULL, &user_data);
3163 mono_walk_stack_with_state (process_frame, &tls->async_state, opts, &user_data);
3164 } else if (tls->filter_state.valid) {
3166 * We are inside an exception filter.
3168 * First we add all the frames from inside the filter; 'tls->ctx' has the current context.
3170 if (tls->context.valid)
3171 mono_walk_stack_with_state (process_filter_frame, &tls->context, opts, &user_data);
3173 * After that, we resume unwinding from the location where the exception has been thrown.
3175 mono_walk_stack_with_state (process_frame, &tls->filter_state, opts, &user_data);
3176 } else if (tls->context.valid) {
3177 mono_walk_stack_with_state (process_frame, &tls->context, opts, &user_data);
3180 tls->frame_count = 0;
3184 new_frame_count = g_slist_length (user_data.frames);
3185 new_frames = g_new0 (StackFrame*, new_frame_count);
3187 for (tmp = user_data.frames; tmp; tmp = tmp->next) {
3188 f = (StackFrame *)tmp->data;
3191 * Reuse the id for already existing stack frames, so invokes don't invalidate
3192 * the still valid stack frames.
3194 for (i = 0; i < tls->frame_count; ++i) {
3195 if (MONO_CONTEXT_GET_SP (&tls->frames [i]->ctx) == MONO_CONTEXT_GET_SP (&f->ctx)) {
3196 f->id = tls->frames [i]->id;
3201 if (i >= tls->frame_count)
3202 f->id = InterlockedIncrement (&frame_id);
3204 new_frames [findex ++] = f;
3207 g_slist_free (user_data.frames);
3209 invalidate_frames (tls);
3211 tls->frames = new_frames;
3212 tls->frame_count = new_frame_count;
3213 tls->frames_up_to_date = TRUE;
3217 * GHFunc to emit an appdomain creation event
3218 * @param key Don't care
3219 * @param value A loaded appdomain
3220 * @param user_data Don't care
3223 emit_appdomain_load (gpointer key, gpointer value, gpointer user_data)
3225 process_profiler_event (EVENT_KIND_APPDOMAIN_CREATE, value);
3226 g_hash_table_foreach (get_agent_domain_info ((MonoDomain *)value)->loaded_classes, emit_type_load, NULL);
3230 * GHFunc to emit a thread start event
3231 * @param key A thread id
3232 * @param value A thread object
3233 * @param user_data Don't care
3236 emit_thread_start (gpointer key, gpointer value, gpointer user_data)
3238 if (!mono_native_thread_id_equals (MONO_UINT_TO_NATIVE_THREAD_ID (GPOINTER_TO_UINT (key)), debugger_thread_id))
3239 process_profiler_event (EVENT_KIND_THREAD_START, value);
3243 * GFunc to emit an assembly load event
3244 * @param value A loaded assembly
3245 * @param user_data Don't care
3248 emit_assembly_load (gpointer value, gpointer user_data)
3250 process_profiler_event (EVENT_KIND_ASSEMBLY_LOAD, value);
3254 * GFunc to emit a type load event
3255 * @param value A loaded type
3256 * @param user_data Don't care
3259 emit_type_load (gpointer key, gpointer value, gpointer user_data)
3261 process_profiler_event (EVENT_KIND_TYPE_LOAD, value);
3265 strdup_tolower (char *s)
3270 for (p = s2; *p; ++p)
3276 * Same as g_path_get_basename () but handles windows paths as well,
3277 * which can occur in .mdb files created by pdb2mdb.
3280 dbg_path_get_basename (const char *filename)
3284 if (!filename || strchr (filename, '/') || !strchr (filename, '\\'))
3285 return g_path_get_basename (filename);
3289 /* No separator -> filename */
3290 r = strrchr (filename, '\\');
3292 return g_strdup (filename);
3294 /* Trailing slash, remove component */
3296 char *copy = g_strdup (filename);
3297 copy [r-filename] = 0;
3298 r = strrchr (copy, '\\');
3302 return g_strdup ("/");
3304 r = g_strdup (&r[1]);
3309 return g_strdup (&r[1]);
3313 init_jit_info_dbg_attrs (MonoJitInfo *ji)
3315 static MonoClass *hidden_klass, *step_through_klass, *non_user_klass;
3316 MonoCustomAttrInfo *ainfo;
3318 if (ji->dbg_attrs_inited)
3321 if (!hidden_klass) {
3322 hidden_klass = mono_class_from_name (mono_defaults.corlib, "System.Diagnostics", "DebuggerHiddenAttribute");
3323 g_assert (hidden_klass);
3325 if (!step_through_klass) {
3326 step_through_klass = mono_class_from_name (mono_defaults.corlib, "System.Diagnostics", "DebuggerStepThroughAttribute");
3327 g_assert (step_through_klass);
3329 if (!non_user_klass) {
3330 non_user_klass = mono_class_from_name (mono_defaults.corlib, "System.Diagnostics", "DebuggerNonUserCodeAttribute");
3331 g_assert (non_user_klass);
3334 ainfo = mono_custom_attrs_from_method (jinfo_get_method (ji));
3336 if (mono_custom_attrs_has_attr (ainfo, hidden_klass))
3337 ji->dbg_hidden = TRUE;
3338 if (mono_custom_attrs_has_attr (ainfo, step_through_klass))
3339 ji->dbg_step_through = TRUE;
3340 if (mono_custom_attrs_has_attr (ainfo, non_user_klass))
3341 ji->dbg_non_user_code = TRUE;
3342 mono_custom_attrs_free (ainfo);
3345 ainfo = mono_custom_attrs_from_class (jinfo_get_method (ji)->klass);
3347 if (mono_custom_attrs_has_attr (ainfo, step_through_klass))
3348 ji->dbg_step_through = TRUE;
3349 if (mono_custom_attrs_has_attr (ainfo, non_user_klass))
3350 ji->dbg_non_user_code = TRUE;
3351 mono_custom_attrs_free (ainfo);
3354 mono_memory_barrier ();
3355 ji->dbg_attrs_inited = TRUE;
3363 * create_event_list:
3365 * Return a list of event request ids matching EVENT, starting from REQS, which
3366 * can be NULL to include all event requests. Set SUSPEND_POLICY to the suspend
3368 * We return request ids, instead of requests, to simplify threading, since
3369 * requests could be deleted anytime when the loader lock is not held.
3370 * LOCKING: Assumes the loader lock is held.
3373 create_event_list (EventKind event, GPtrArray *reqs, MonoJitInfo *ji, EventInfo *ei, int *suspend_policy)
3376 GSList *events = NULL;
3378 *suspend_policy = SUSPEND_POLICY_NONE;
3381 reqs = event_requests;
3386 for (i = 0; i < reqs->len; ++i) {
3387 EventRequest *req = (EventRequest *)g_ptr_array_index (reqs, i);
3388 if (req->event_kind == event) {
3389 gboolean filtered = FALSE;
3392 for (j = 0; j < req->nmodifiers; ++j) {
3393 Modifier *mod = &req->modifiers [j];
3395 if (mod->kind == MOD_KIND_COUNT) {
3397 if (mod->data.count > 0) {
3398 if (mod->data.count > 0) {
3400 if (mod->data.count == 0)
3404 } else if (mod->kind == MOD_KIND_THREAD_ONLY) {
3405 if (mod->data.thread != mono_thread_internal_current ())
3407 } else if (mod->kind == MOD_KIND_EXCEPTION_ONLY && ei) {
3408 if (mod->data.exc_class && mod->subclasses && !mono_class_is_assignable_from (mod->data.exc_class, ei->exc->vtable->klass))
3410 if (mod->data.exc_class && !mod->subclasses && mod->data.exc_class != ei->exc->vtable->klass)
3412 if (ei->caught && !mod->caught)
3414 if (!ei->caught && !mod->uncaught)
3416 } else if (mod->kind == MOD_KIND_ASSEMBLY_ONLY && ji) {
3418 gboolean found = FALSE;
3419 MonoAssembly **assemblies = mod->data.assemblies;
3422 for (k = 0; assemblies [k]; ++k)
3423 if (assemblies [k] == jinfo_get_method (ji)->klass->image->assembly)
3428 } else if (mod->kind == MOD_KIND_SOURCE_FILE_ONLY && ei && ei->klass) {
3429 gpointer iter = NULL;
3431 MonoDebugSourceInfo *sinfo;
3432 char *source_file, *s;
3433 gboolean found = FALSE;
3435 GPtrArray *source_file_list;
3437 while ((method = mono_class_get_methods (ei->klass, &iter))) {
3438 MonoDebugMethodInfo *minfo = mono_debug_lookup_method (method);
3441 mono_debug_get_seq_points (minfo, &source_file, &source_file_list, NULL, NULL, NULL);
3442 for (i = 0; i < source_file_list->len; ++i) {
3443 sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, i);
3445 * Do a case-insesitive match by converting the file name to
3448 s = strdup_tolower (sinfo->source_file);
3449 if (g_hash_table_lookup (mod->data.source_files, s))
3452 char *s2 = dbg_path_get_basename (sinfo->source_file);
3453 char *s3 = strdup_tolower (s2);
3455 if (g_hash_table_lookup (mod->data.source_files, s3))
3462 g_ptr_array_free (source_file_list, TRUE);
3467 } else if (mod->kind == MOD_KIND_TYPE_NAME_ONLY && ei && ei->klass) {
3470 s = mono_type_full_name (&ei->klass->byval_arg);
3471 if (!g_hash_table_lookup (mod->data.type_names, s))
3474 } else if (mod->kind == MOD_KIND_STEP) {
3475 if ((mod->data.filter & STEP_FILTER_STATIC_CTOR) && ji &&
3476 (jinfo_get_method (ji)->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
3477 !strcmp (jinfo_get_method (ji)->name, ".cctor") &&
3478 (jinfo_get_method (ji) != ((SingleStepReq*)req->info)->start_method))
3480 if ((mod->data.filter & STEP_FILTER_DEBUGGER_HIDDEN) && ji) {
3481 init_jit_info_dbg_attrs (ji);
3485 if ((mod->data.filter & STEP_FILTER_DEBUGGER_STEP_THROUGH) && ji) {
3486 init_jit_info_dbg_attrs (ji);
3487 if (ji->dbg_step_through)
3490 if ((mod->data.filter & STEP_FILTER_DEBUGGER_NON_USER_CODE) && ji) {
3491 init_jit_info_dbg_attrs (ji);
3492 if (ji->dbg_non_user_code)
3499 *suspend_policy = MAX (*suspend_policy, req->suspend_policy);
3500 events = g_slist_append (events, GINT_TO_POINTER (req->id));
3505 /* Send a VM START/DEATH event by default */
3506 if (event == EVENT_KIND_VM_START)
3507 events = g_slist_append (events, GINT_TO_POINTER (0));
3508 if (event == EVENT_KIND_VM_DEATH)
3509 events = g_slist_append (events, GINT_TO_POINTER (0));
3514 static G_GNUC_UNUSED const char*
3515 event_to_string (EventKind event)
3518 case EVENT_KIND_VM_START: return "VM_START";
3519 case EVENT_KIND_VM_DEATH: return "VM_DEATH";
3520 case EVENT_KIND_THREAD_START: return "THREAD_START";
3521 case EVENT_KIND_THREAD_DEATH: return "THREAD_DEATH";
3522 case EVENT_KIND_APPDOMAIN_CREATE: return "APPDOMAIN_CREATE";
3523 case EVENT_KIND_APPDOMAIN_UNLOAD: return "APPDOMAIN_UNLOAD";
3524 case EVENT_KIND_METHOD_ENTRY: return "METHOD_ENTRY";
3525 case EVENT_KIND_METHOD_EXIT: return "METHOD_EXIT";
3526 case EVENT_KIND_ASSEMBLY_LOAD: return "ASSEMBLY_LOAD";
3527 case EVENT_KIND_ASSEMBLY_UNLOAD: return "ASSEMBLY_UNLOAD";
3528 case EVENT_KIND_BREAKPOINT: return "BREAKPOINT";
3529 case EVENT_KIND_STEP: return "STEP";
3530 case EVENT_KIND_TYPE_LOAD: return "TYPE_LOAD";
3531 case EVENT_KIND_EXCEPTION: return "EXCEPTION";
3532 case EVENT_KIND_KEEPALIVE: return "KEEPALIVE";
3533 case EVENT_KIND_USER_BREAK: return "USER_BREAK";
3534 case EVENT_KIND_USER_LOG: return "USER_LOG";
3536 g_assert_not_reached ();
3544 * Send an event to the client, suspending the vm if needed.
3545 * LOCKING: Since this can suspend the calling thread, no locks should be held
3547 * The EVENTS list is freed by this function.
3550 process_event (EventKind event, gpointer arg, gint32 il_offset, MonoContext *ctx, GSList *events, int suspend_policy)
3554 MonoDomain *domain = mono_domain_get ();
3555 MonoThread *thread = NULL;
3556 MonoObject *keepalive_obj = NULL;
3557 gboolean send_success = FALSE;
3562 DEBUG_PRINTF (2, "Debugger agent not initialized yet: dropping %s\n", event_to_string (event));
3566 if (!vm_start_event_sent && event != EVENT_KIND_VM_START) {
3567 // FIXME: We miss those events
3568 DEBUG_PRINTF (2, "VM start event not sent yet: dropping %s\n", event_to_string (event));
3572 if (vm_death_event_sent) {
3573 DEBUG_PRINTF (2, "VM death event has been sent: dropping %s\n", event_to_string (event));
3577 if (mono_runtime_is_shutting_down () && event != EVENT_KIND_VM_DEATH) {
3578 DEBUG_PRINTF (2, "Mono runtime is shutting down: dropping %s\n", event_to_string (event));
3583 DEBUG_PRINTF (2, "Debugger client is not connected: dropping %s\n", event_to_string (event));
3587 if (event == EVENT_KIND_KEEPALIVE)
3588 suspend_policy = SUSPEND_POLICY_NONE;
3593 if (agent_config.defer) {
3594 /* Make sure the thread id is always set when doing deferred debugging */
3595 if (is_debugger_thread ()) {
3596 /* Don't suspend on events from the debugger thread */
3597 suspend_policy = SUSPEND_POLICY_NONE;
3598 thread = mono_thread_get_main ();
3600 else thread = mono_thread_current ();
3602 if (is_debugger_thread () && event != EVENT_KIND_VM_DEATH)
3603 // FIXME: Send these with a NULL thread, don't suspend the current thread
3608 nevents = g_slist_length (events);
3609 buffer_init (&buf, 128);
3610 buffer_add_byte (&buf, suspend_policy);
3611 buffer_add_int (&buf, nevents);
3613 for (l = events; l; l = l->next) {
3614 buffer_add_byte (&buf, event); // event kind
3615 buffer_add_int (&buf, GPOINTER_TO_INT (l->data)); // request id
3620 thread = mono_thread_current ();
3622 if (event == EVENT_KIND_VM_START && arg != NULL)
3623 thread = (MonoThread *)arg;
3625 buffer_add_objid (&buf, (MonoObject*)thread); // thread
3628 case EVENT_KIND_THREAD_START:
3629 case EVENT_KIND_THREAD_DEATH:
3631 case EVENT_KIND_APPDOMAIN_CREATE:
3632 case EVENT_KIND_APPDOMAIN_UNLOAD:
3633 buffer_add_domainid (&buf, (MonoDomain *)arg);
3635 case EVENT_KIND_METHOD_ENTRY:
3636 case EVENT_KIND_METHOD_EXIT:
3637 buffer_add_methodid (&buf, domain, (MonoMethod *)arg);
3639 case EVENT_KIND_ASSEMBLY_LOAD:
3640 buffer_add_assemblyid (&buf, domain, (MonoAssembly *)arg);
3642 case EVENT_KIND_ASSEMBLY_UNLOAD: {
3643 DebuggerTlsData *tls;
3645 /* The domain the assembly belonged to is not equal to the current domain */
3646 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3648 g_assert (tls->domain_unloading);
3650 buffer_add_assemblyid (&buf, tls->domain_unloading, (MonoAssembly *)arg);
3653 case EVENT_KIND_TYPE_LOAD:
3654 buffer_add_typeid (&buf, domain, (MonoClass *)arg);
3656 case EVENT_KIND_BREAKPOINT:
3657 case EVENT_KIND_STEP:
3658 buffer_add_methodid (&buf, domain, (MonoMethod *)arg);
3659 buffer_add_long (&buf, il_offset);
3661 case EVENT_KIND_VM_START:
3662 buffer_add_domainid (&buf, mono_get_root_domain ());
3664 case EVENT_KIND_VM_DEATH:
3665 if (CHECK_PROTOCOL_VERSION (2, 27))
3666 buffer_add_int (&buf, mono_environment_exitcode_get ());
3668 case EVENT_KIND_EXCEPTION: {
3669 EventInfo *ei = (EventInfo *)arg;
3670 buffer_add_objid (&buf, ei->exc);
3672 * We are not yet suspending, so get_objref () will not keep this object alive. So we need to do it
3673 * later after the suspension. (#12494).
3675 keepalive_obj = ei->exc;
3678 case EVENT_KIND_USER_BREAK:
3680 case EVENT_KIND_USER_LOG: {
3681 EventInfo *ei = (EventInfo *)arg;
3682 buffer_add_int (&buf, ei->level);
3683 buffer_add_string (&buf, ei->category ? ei->category : "");
3684 buffer_add_string (&buf, ei->message ? ei->message : "");
3687 case EVENT_KIND_KEEPALIVE:
3688 suspend_policy = SUSPEND_POLICY_NONE;
3691 g_assert_not_reached ();
3695 if (event == EVENT_KIND_VM_START) {
3696 suspend_policy = agent_config.suspend ? SUSPEND_POLICY_ALL : SUSPEND_POLICY_NONE;
3697 if (!agent_config.defer)
3698 start_debugger_thread ();
3701 if (event == EVENT_KIND_VM_DEATH) {
3702 vm_death_event_sent = TRUE;
3703 suspend_policy = SUSPEND_POLICY_NONE;
3706 if (mono_runtime_is_shutting_down ())
3707 suspend_policy = SUSPEND_POLICY_NONE;
3709 if (suspend_policy != SUSPEND_POLICY_NONE) {
3711 * Save the thread context and start suspending before sending the packet,
3712 * since we could be receiving the resume request before send_packet ()
3715 save_thread_context (ctx);
3719 /* This will keep this object alive */
3720 get_objref (keepalive_obj);
3723 send_success = send_packet (CMD_SET_EVENT, CMD_COMPOSITE, &buf);
3727 g_slist_free (events);
3730 if (!send_success) {
3731 DEBUG_PRINTF (2, "Sending command %s failed.\n", event_to_string (event));
3735 if (event == EVENT_KIND_VM_START) {
3736 vm_start_event_sent = TRUE;
3739 DEBUG_PRINTF (1, "[%p] Sent %d events %s(%d), suspend=%d.\n", (gpointer)mono_native_thread_id_get (), nevents, event_to_string (event), ecount, suspend_policy);
3741 switch (suspend_policy) {
3742 case SUSPEND_POLICY_NONE:
3744 case SUSPEND_POLICY_ALL:
3747 case SUSPEND_POLICY_EVENT_THREAD:
3751 g_assert_not_reached ();
3756 process_profiler_event (EventKind event, gpointer arg)
3760 EventInfo ei, *ei_arg = NULL;
3762 if (event == EVENT_KIND_TYPE_LOAD) {
3763 ei.klass = (MonoClass *)arg;
3767 mono_loader_lock ();
3768 events = create_event_list (event, NULL, NULL, ei_arg, &suspend_policy);
3769 mono_loader_unlock ();
3771 process_event (event, arg, 0, NULL, events, suspend_policy);
3775 runtime_initialized (MonoProfiler *prof)
3777 process_profiler_event (EVENT_KIND_VM_START, mono_thread_current ());
3778 if (agent_config.defer)
3779 start_debugger_thread ();
3783 runtime_shutdown (MonoProfiler *prof)
3785 process_profiler_event (EVENT_KIND_VM_DEATH, mono_thread_current ());
3787 mono_debugger_agent_cleanup ();
3791 thread_startup (MonoProfiler *prof, uintptr_t tid)
3793 MonoInternalThread *thread = mono_thread_internal_current ();
3794 MonoInternalThread *old_thread;
3795 DebuggerTlsData *tls;
3797 if (mono_native_thread_id_equals (MONO_UINT_TO_NATIVE_THREAD_ID (tid), debugger_thread_id))
3800 g_assert (mono_native_thread_id_equals (MONO_UINT_TO_NATIVE_THREAD_ID (tid), MONO_UINT_TO_NATIVE_THREAD_ID (thread->tid)));
3802 mono_loader_lock ();
3803 old_thread = (MonoInternalThread *)mono_g_hash_table_lookup (tid_to_thread, GUINT_TO_POINTER (tid));
3804 mono_loader_unlock ();
3806 if (thread == old_thread) {
3808 * For some reason, thread_startup () might be called for the same thread
3809 * multiple times (attach ?).
3811 DEBUG_PRINTF (1, "[%p] thread_start () called multiple times for %p, ignored.\n", GUINT_TO_POINTER (tid), GUINT_TO_POINTER (tid));
3815 * thread_end () might not be called for some threads, and the tid could
3818 DEBUG_PRINTF (1, "[%p] Removing stale data for tid %p.\n", GUINT_TO_POINTER (tid), GUINT_TO_POINTER (tid));
3819 mono_loader_lock ();
3820 mono_g_hash_table_remove (thread_to_tls, old_thread);
3821 mono_g_hash_table_remove (tid_to_thread, GUINT_TO_POINTER (tid));
3822 mono_g_hash_table_remove (tid_to_thread_obj, GUINT_TO_POINTER (tid));
3823 mono_loader_unlock ();
3827 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3829 // FIXME: Free this somewhere
3830 tls = g_new0 (DebuggerTlsData, 1);
3831 MONO_GC_REGISTER_ROOT_SINGLE (tls->thread, MONO_ROOT_SOURCE_DEBUGGER, "debugger thread reference");
3832 tls->thread = thread;
3833 mono_native_tls_set_value (debugger_tls_id, tls);
3835 DEBUG_PRINTF (1, "[%p] Thread started, obj=%p, tls=%p.\n", (gpointer)tid, thread, tls);
3837 mono_loader_lock ();
3838 mono_g_hash_table_insert (thread_to_tls, thread, tls);
3839 mono_g_hash_table_insert (tid_to_thread, (gpointer)tid, thread);
3840 mono_g_hash_table_insert (tid_to_thread_obj, GUINT_TO_POINTER (tid), mono_thread_current ());
3841 mono_loader_unlock ();
3843 process_profiler_event (EVENT_KIND_THREAD_START, thread);
3846 * suspend_vm () could have missed this thread, so wait for a resume.
3852 thread_end (MonoProfiler *prof, uintptr_t tid)
3854 MonoInternalThread *thread;
3855 DebuggerTlsData *tls = NULL;
3857 mono_loader_lock ();
3858 thread = (MonoInternalThread *)mono_g_hash_table_lookup (tid_to_thread, GUINT_TO_POINTER (tid));
3860 mono_g_hash_table_remove (tid_to_thread_obj, GUINT_TO_POINTER (tid));
3861 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
3863 /* FIXME: Maybe we need to free this instead, but some code can't handle that */
3864 tls->terminated = TRUE;
3865 /* Can't remove from tid_to_thread, as that would defeat the check in thread_start () */
3866 MONO_GC_UNREGISTER_ROOT (tls->thread);
3870 mono_loader_unlock ();
3872 /* We might be called for threads started before we registered the start callback */
3874 DEBUG_PRINTF (1, "[%p] Thread terminated, obj=%p, tls=%p.\n", (gpointer)tid, thread, tls);
3876 if (mono_native_thread_id_equals (mono_native_thread_id_get (), MONO_UINT_TO_NATIVE_THREAD_ID (tid))
3877 && !mono_native_tls_get_value (debugger_tls_id)
3880 * This can happen on darwin since we deregister threads using pthread dtors.
3881 * process_profiler_event () and the code it calls cannot handle a null TLS value.
3886 process_profiler_event (EVENT_KIND_THREAD_DEATH, thread);
3891 appdomain_load (MonoProfiler *prof, MonoDomain *domain, int result)
3893 mono_loader_lock ();
3894 g_hash_table_insert (domains, domain, domain);
3895 mono_loader_unlock ();
3897 process_profiler_event (EVENT_KIND_APPDOMAIN_CREATE, domain);
3901 appdomain_start_unload (MonoProfiler *prof, MonoDomain *domain)
3903 DebuggerTlsData *tls;
3905 /* This might be called during shutdown on the debugger thread from the CMD_VM_EXIT code */
3906 if (is_debugger_thread ())
3910 * Remember the currently unloading appdomain as it is needed to generate
3911 * proper ids for unloading assemblies.
3913 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3915 tls->domain_unloading = domain;
3919 appdomain_unload (MonoProfiler *prof, MonoDomain *domain)
3921 DebuggerTlsData *tls;
3923 if (is_debugger_thread ())
3926 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3928 tls->domain_unloading = NULL;
3930 clear_breakpoints_for_domain (domain);
3932 mono_loader_lock ();
3933 /* Invalidate each thread's frame stack */
3934 mono_g_hash_table_foreach (thread_to_tls, invalidate_each_thread, NULL);
3935 mono_loader_unlock ();
3937 process_profiler_event (EVENT_KIND_APPDOMAIN_UNLOAD, domain);
3941 * invalidate_each_thread:
3943 * A GHFunc to invalidate frames.
3944 * value must be a DebuggerTlsData*
3947 invalidate_each_thread (gpointer key, gpointer value, gpointer user_data)
3949 invalidate_frames ((DebuggerTlsData *)value);
3953 assembly_load (MonoProfiler *prof, MonoAssembly *assembly, int result)
3955 /* Sent later in jit_end () */
3957 g_ptr_array_add (pending_assembly_loads, assembly);
3962 assembly_unload (MonoProfiler *prof, MonoAssembly *assembly)
3964 if (is_debugger_thread ())
3967 process_profiler_event (EVENT_KIND_ASSEMBLY_UNLOAD, assembly);
3969 clear_event_requests_for_assembly (assembly);
3970 clear_types_for_assembly (assembly);
3974 send_type_load (MonoClass *klass)
3976 gboolean type_load = FALSE;
3977 MonoDomain *domain = mono_domain_get ();
3978 AgentDomainInfo *info = NULL;
3980 info = get_agent_domain_info (domain);
3982 mono_loader_lock ();
3984 if (!g_hash_table_lookup (info->loaded_classes, klass)) {
3986 g_hash_table_insert (info->loaded_classes, klass, klass);
3989 mono_loader_unlock ();
3992 emit_type_load (klass, klass, NULL);
3996 * Emit load events for all types currently loaded in the domain.
3997 * Takes the loader and domain locks.
3998 * user_data is unused.
4001 send_types_for_domain (MonoDomain *domain, void *user_data)
4003 AgentDomainInfo *info = NULL;
4005 info = get_agent_domain_info (domain);
4008 mono_loader_lock ();
4009 g_hash_table_foreach (info->loaded_classes, emit_type_load, NULL);
4010 mono_loader_unlock ();
4014 jit_end (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *jinfo, int result)
4017 * We emit type load events when the first method of the type is JITted,
4018 * since the class load profiler callbacks might be called with the
4019 * loader lock held. They could also occur in the debugger thread.
4020 * Same for assembly load events.
4023 MonoAssembly *assembly = NULL;
4025 // FIXME: Maybe store this in TLS so the thread of the event is correct ?
4027 if (pending_assembly_loads->len > 0) {
4028 assembly = (MonoAssembly *)g_ptr_array_index (pending_assembly_loads, 0);
4029 g_ptr_array_remove_index (pending_assembly_loads, 0);
4034 process_profiler_event (EVENT_KIND_ASSEMBLY_LOAD, assembly);
4040 send_type_load (method->klass);
4043 add_pending_breakpoints (method, jinfo);
4047 * BREAKPOINTS/SINGLE STEPPING
4051 * Contains information about an inserted breakpoint.
4054 long il_offset, native_offset;
4058 } BreakpointInstance;
4061 * Contains generic information about a breakpoint.
4065 * The method where the breakpoint is placed. Can be NULL in which case it
4066 * is inserted into every method. This is used to implement method entry/
4067 * exit events. Can be a generic method definition, in which case the
4068 * breakpoint is inserted into every instance.
4074 * A list of BreakpointInstance structures describing where the breakpoint
4075 * was inserted. There could be more than one because of
4076 * generics/appdomains/method entry/exit.
4078 GPtrArray *children;
4081 /* List of breakpoints */
4082 /* Protected by the loader lock */
4083 static GPtrArray *breakpoints;
4084 /* Maps breakpoint locations to the number of breakpoints at that location */
4085 static GHashTable *bp_locs;
4088 breakpoints_init (void)
4090 breakpoints = g_ptr_array_new ();
4091 bp_locs = g_hash_table_new (NULL, NULL);
4095 * insert_breakpoint:
4097 * Insert the breakpoint described by BP into the method described by
4101 insert_breakpoint (MonoSeqPointInfo *seq_points, MonoDomain *domain, MonoJitInfo *ji, MonoBreakpoint *bp, MonoError *error)
4104 BreakpointInstance *inst;
4105 SeqPointIterator it;
4106 gboolean it_has_sp = FALSE;
4109 mono_error_init (error);
4111 mono_seq_point_iterator_init (&it, seq_points);
4112 while (mono_seq_point_iterator_next (&it)) {
4113 if (it.seq_point.il_offset == bp->il_offset) {
4121 * The set of IL offsets with seq points doesn't completely match the
4122 * info returned by CMD_METHOD_GET_DEBUG_INFO (#407).
4124 mono_seq_point_iterator_init (&it, seq_points);
4125 while (mono_seq_point_iterator_next (&it)) {
4126 if (it.seq_point.il_offset != METHOD_ENTRY_IL_OFFSET &&
4127 it.seq_point.il_offset != METHOD_EXIT_IL_OFFSET &&
4128 it.seq_point.il_offset + 1 == bp->il_offset) {
4136 char *s = g_strdup_printf ("Unable to insert breakpoint at %s:%d", mono_method_full_name (jinfo_get_method (ji), TRUE), bp->il_offset);
4138 mono_seq_point_iterator_init (&it, seq_points);
4139 while (mono_seq_point_iterator_next (&it))
4140 DEBUG_PRINTF (1, "%d\n", it.seq_point.il_offset);
4143 mono_error_set_error (error, MONO_ERROR_GENERIC, "%s", s);
4144 g_warning ("%s", s);
4148 g_warning ("%s", s);
4154 inst = g_new0 (BreakpointInstance, 1);
4155 inst->il_offset = it.seq_point.il_offset;
4156 inst->native_offset = it.seq_point.native_offset;
4157 inst->ip = (guint8*)ji->code_start + it.seq_point.native_offset;
4159 inst->domain = domain;
4161 mono_loader_lock ();
4163 g_ptr_array_add (bp->children, inst);
4165 mono_loader_unlock ();
4168 count = GPOINTER_TO_INT (g_hash_table_lookup (bp_locs, inst->ip));
4169 g_hash_table_insert (bp_locs, inst->ip, GINT_TO_POINTER (count + 1));
4172 if (it.seq_point.native_offset == SEQ_POINT_NATIVE_OFFSET_DEAD_CODE) {
4173 DEBUG_PRINTF (1, "[dbg] Attempting to insert seq point at dead IL offset %d, ignoring.\n", (int)bp->il_offset);
4174 } else if (count == 0) {
4175 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
4176 mono_arch_set_breakpoint (ji, inst->ip);
4182 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);
4186 remove_breakpoint (BreakpointInstance *inst)
4188 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
4190 MonoJitInfo *ji = inst->ji;
4191 guint8 *ip = inst->ip;
4194 count = GPOINTER_TO_INT (g_hash_table_lookup (bp_locs, ip));
4195 g_hash_table_insert (bp_locs, ip, GINT_TO_POINTER (count - 1));
4198 g_assert (count > 0);
4200 if (count == 1 && inst->native_offset != SEQ_POINT_NATIVE_OFFSET_DEAD_CODE) {
4201 mono_arch_clear_breakpoint (ji, ip);
4202 DEBUG_PRINTF (1, "[dbg] Clear breakpoint at %s [%p].\n", mono_method_full_name (jinfo_get_method (ji), TRUE), ip);
4210 * This doesn't take any locks.
4212 static inline gboolean
4213 bp_matches_method (MonoBreakpoint *bp, MonoMethod *method)
4219 if (method == bp->method)
4221 if (method->is_inflated && ((MonoMethodInflated*)method)->declaring == bp->method)
4224 if (bp->method->is_inflated && method->is_inflated) {
4225 MonoMethodInflated *bpimethod = (MonoMethodInflated*)bp->method;
4226 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
4228 /* Open generic methods should match closed generic methods of the same class */
4229 if (bpimethod->declaring == imethod->declaring && bpimethod->context.class_inst == imethod->context.class_inst && bpimethod->context.method_inst && bpimethod->context.method_inst->is_open) {
4230 for (i = 0; i < bpimethod->context.method_inst->type_argc; ++i) {
4231 MonoType *t1 = bpimethod->context.method_inst->type_argv [i];
4233 /* FIXME: Handle !mvar */
4234 if (t1->type != MONO_TYPE_MVAR)
4245 * add_pending_breakpoints:
4247 * Insert pending breakpoints into the newly JITted method METHOD.
4250 add_pending_breakpoints (MonoMethod *method, MonoJitInfo *ji)
4253 MonoSeqPointInfo *seq_points;
4255 MonoMethod *jmethod;
4260 domain = mono_domain_get ();
4262 mono_loader_lock ();
4264 for (i = 0; i < breakpoints->len; ++i) {
4265 MonoBreakpoint *bp = (MonoBreakpoint *)g_ptr_array_index (breakpoints, i);
4266 gboolean found = FALSE;
4268 if (!bp_matches_method (bp, method))
4271 for (j = 0; j < bp->children->len; ++j) {
4272 BreakpointInstance *inst = (BreakpointInstance *)g_ptr_array_index (bp->children, j);
4279 MonoMethod *declaring = NULL;
4281 jmethod = jinfo_get_method (ji);
4282 if (jmethod->is_inflated)
4283 declaring = mono_method_get_declaring_generic_method (jmethod);
4285 mono_domain_lock (domain);
4286 seq_points = (MonoSeqPointInfo *)g_hash_table_lookup (domain_jit_info (domain)->seq_points, jmethod);
4287 if (!seq_points && declaring)
4288 seq_points = (MonoSeqPointInfo *)g_hash_table_lookup (domain_jit_info (domain)->seq_points, declaring);
4289 mono_domain_unlock (domain);
4291 /* Could be AOT code */
4293 g_assert (seq_points);
4295 insert_breakpoint (seq_points, domain, ji, bp, NULL);
4299 mono_loader_unlock ();
4303 set_bp_in_method (MonoDomain *domain, MonoMethod *method, MonoSeqPointInfo *seq_points, MonoBreakpoint *bp, MonoError *error)
4309 mono_error_init (error);
4311 code = mono_jit_find_compiled_method_with_jit_info (domain, method, &ji);
4313 /* Might be AOTed code */
4314 code = mono_aot_get_method (domain, method);
4316 ji = mono_jit_info_table_find (domain, (char *)code);
4321 insert_breakpoint (seq_points, domain, ji, bp, error);
4325 clear_breakpoint (MonoBreakpoint *bp);
4330 * Set a breakpoint at IL_OFFSET in METHOD.
4331 * METHOD can be NULL, in which case a breakpoint is placed in all methods.
4332 * METHOD can also be a generic method definition, in which case a breakpoint
4333 * is placed in all instances of the method.
4334 * If ERROR is non-NULL, then it is set and NULL is returnd if some breakpoints couldn't be
4337 static MonoBreakpoint*
4338 set_breakpoint (MonoMethod *method, long il_offset, EventRequest *req, MonoError *error)
4341 GHashTableIter iter, iter2;
4344 MonoSeqPointInfo *seq_points;
4346 GPtrArray *method_domains;
4347 GPtrArray *method_seq_points;
4351 mono_error_init (error);
4354 // - suspend/resume the vm to prevent code patching problems
4355 // - multiple breakpoints on the same location
4356 // - dynamic methods
4359 bp = g_new0 (MonoBreakpoint, 1);
4360 bp->method = method;
4361 bp->il_offset = il_offset;
4363 bp->children = g_ptr_array_new ();
4365 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);
4367 methods = g_ptr_array_new ();
4368 method_domains = g_ptr_array_new ();
4369 method_seq_points = g_ptr_array_new ();
4371 mono_loader_lock ();
4372 g_hash_table_iter_init (&iter, domains);
4373 while (g_hash_table_iter_next (&iter, (void**)&domain, NULL)) {
4374 mono_domain_lock (domain);
4375 g_hash_table_iter_init (&iter2, domain_jit_info (domain)->seq_points);
4376 while (g_hash_table_iter_next (&iter2, (void**)&m, (void**)&seq_points)) {
4377 if (bp_matches_method (bp, m)) {
4378 /* Save the info locally to simplify the code inside the domain lock */
4379 g_ptr_array_add (methods, m);
4380 g_ptr_array_add (method_domains, domain);
4381 g_ptr_array_add (method_seq_points, seq_points);
4384 mono_domain_unlock (domain);
4387 for (i = 0; i < methods->len; ++i) {
4388 m = (MonoMethod *)g_ptr_array_index (methods, i);
4389 domain = (MonoDomain *)g_ptr_array_index (method_domains, i);
4390 seq_points = (MonoSeqPointInfo *)g_ptr_array_index (method_seq_points, i);
4391 set_bp_in_method (domain, m, seq_points, bp, error);
4394 g_ptr_array_add (breakpoints, bp);
4395 mono_loader_unlock ();
4397 g_ptr_array_free (methods, TRUE);
4398 g_ptr_array_free (method_domains, TRUE);
4399 g_ptr_array_free (method_seq_points, TRUE);
4401 if (error && !mono_error_ok (error)) {
4402 clear_breakpoint (bp);
4410 clear_breakpoint (MonoBreakpoint *bp)
4414 // FIXME: locking, races
4415 for (i = 0; i < bp->children->len; ++i) {
4416 BreakpointInstance *inst = (BreakpointInstance *)g_ptr_array_index (bp->children, i);
4418 remove_breakpoint (inst);
4423 mono_loader_lock ();
4424 g_ptr_array_remove (breakpoints, bp);
4425 mono_loader_unlock ();
4427 g_ptr_array_free (bp->children, TRUE);
4432 breakpoints_cleanup (void)
4436 mono_loader_lock ();
4438 while (i < event_requests->len) {
4439 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
4441 if (req->event_kind == EVENT_KIND_BREAKPOINT) {
4442 clear_breakpoint ((MonoBreakpoint *)req->info);
4443 g_ptr_array_remove_index_fast (event_requests, i);
4450 for (i = 0; i < breakpoints->len; ++i)
4451 g_free (g_ptr_array_index (breakpoints, i));
4453 g_ptr_array_free (breakpoints, TRUE);
4454 g_hash_table_destroy (bp_locs);
4459 mono_loader_unlock ();
4463 * clear_breakpoints_for_domain:
4465 * Clear breakpoint instances which reference DOMAIN.
4468 clear_breakpoints_for_domain (MonoDomain *domain)
4472 /* This could be called after shutdown */
4476 mono_loader_lock ();
4477 for (i = 0; i < breakpoints->len; ++i) {
4478 MonoBreakpoint *bp = (MonoBreakpoint *)g_ptr_array_index (breakpoints, i);
4481 while (j < bp->children->len) {
4482 BreakpointInstance *inst = (BreakpointInstance *)g_ptr_array_index (bp->children, j);
4484 if (inst->domain == domain) {
4485 remove_breakpoint (inst);
4489 g_ptr_array_remove_index_fast (bp->children, j);
4495 mono_loader_unlock ();
4501 * Return FALSE if single stepping needs to continue.
4504 ss_update (SingleStepReq *req, MonoJitInfo *ji, SeqPoint *sp, DebuggerTlsData *tls, MonoContext *ctx)
4506 MonoDebugMethodInfo *minfo;
4507 MonoDebugSourceLocation *loc = NULL;
4508 gboolean hit = TRUE;
4511 if (req->depth == STEP_DEPTH_OVER && (sp->flags & MONO_SEQ_POINT_FLAG_NONEMPTY_STACK)) {
4513 * These seq points are inserted by the JIT after calls, step over needs to skip them.
4515 DEBUG_PRINTF (1, "[%p] Seq point at nonempty stack %x while stepping over, continuing single stepping.\n", (gpointer)mono_native_thread_id_get (), sp->il_offset);
4519 if (req->depth == STEP_DEPTH_OVER && hit) {
4520 if (!tls->context.valid)
4521 mono_thread_state_init_from_monoctx (&tls->context, ctx);
4522 compute_frame_info (tls->thread, tls);
4523 if (req->nframes && tls->frame_count && tls->frame_count > req->nframes) {
4524 /* Hit the breakpoint in a recursive call */
4525 DEBUG_PRINTF (1, "[%p] Breakpoint at lower frame while stepping over, continuing single stepping.\n", (gpointer)mono_native_thread_id_get ());
4530 if (req->depth == STEP_DEPTH_INTO && req->size == STEP_SIZE_MIN && (sp->flags & MONO_SEQ_POINT_FLAG_NONEMPTY_STACK) && ss_req->start_method){
4531 method = jinfo_get_method (ji);
4532 if (!tls->context.valid)
4533 mono_thread_state_init_from_monoctx (&tls->context, ctx);
4534 compute_frame_info (tls->thread, tls);
4535 if (ss_req->start_method == method && req->nframes && tls->frame_count == req->nframes) {//Check also frame count(could be recursion)
4536 DEBUG_PRINTF (1, "[%p] Seq point at nonempty stack %x while stepping in, continuing single stepping.\n", (gpointer)mono_native_thread_id_get (), sp->il_offset);
4541 if (req->size != STEP_SIZE_LINE)
4544 /* Have to check whenever a different source line was reached */
4545 method = jinfo_get_method (ji);
4546 minfo = mono_debug_lookup_method (method);
4549 loc = mono_debug_method_lookup_location (minfo, sp->il_offset);
4552 DEBUG_PRINTF (1, "[%p] No line number info for il offset %x, continuing single stepping.\n", (gpointer)mono_native_thread_id_get (), sp->il_offset);
4553 ss_req->last_method = method;
4555 } else if (loc && method == ss_req->last_method && loc->row == ss_req->last_line) {
4556 DEBUG_PRINTF (1, "[%p] Same source line (%d), continuing single stepping.\n", (gpointer)mono_native_thread_id_get (), loc->row);
4561 ss_req->last_method = method;
4562 ss_req->last_line = loc->row;
4563 mono_debug_free_source_location (loc);
4570 breakpoint_matches_assembly (MonoBreakpoint *bp, MonoAssembly *assembly)
4572 return bp->method && bp->method->klass->image->assembly == assembly;
4576 process_breakpoint_inner (DebuggerTlsData *tls, gboolean from_signal)
4580 int i, j, suspend_policy;
4581 guint32 native_offset;
4583 BreakpointInstance *inst;
4584 GPtrArray *bp_reqs, *ss_reqs_orig, *ss_reqs;
4585 GSList *bp_events = NULL, *ss_events = NULL, *enter_leave_events = NULL;
4586 EventKind kind = EVENT_KIND_BREAKPOINT;
4587 MonoContext *ctx = &tls->restore_state.ctx;
4589 MonoSeqPointInfo *info;
4593 // FIXME: Speed this up
4595 ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
4596 ji = mini_jit_info_table_find (mono_domain_get (), (char*)ip, NULL);
4597 g_assert (ji && !ji->is_trampoline);
4598 method = jinfo_get_method (ji);
4600 /* Compute the native offset of the breakpoint from the ip */
4601 native_offset = ip - (guint8*)ji->code_start;
4604 * Skip the instruction causing the breakpoint signal.
4607 mono_arch_skip_breakpoint (ctx, ji);
4609 if (method->wrapper_type || tls->disable_breakpoints)
4612 bp_reqs = g_ptr_array_new ();
4613 ss_reqs = g_ptr_array_new ();
4614 ss_reqs_orig = g_ptr_array_new ();
4616 mono_loader_lock ();
4619 * The ip points to the instruction causing the breakpoint event, which is after
4620 * the offset recorded in the seq point map, so find the prev seq point before ip.
4622 found_sp = mono_find_prev_seq_point_for_native_offset (mono_domain_get (), method, native_offset, &info, &sp);
4625 no_seq_points_found (method, native_offset);
4627 g_assert (found_sp);
4629 DEBUG_PRINTF (1, "[%p] Breakpoint hit, method=%s, ip=%p, [il=0x%x,native=0x%x].\n", (gpointer)mono_native_thread_id_get (), method->name, ip, sp.il_offset, native_offset);
4632 for (i = 0; i < breakpoints->len; ++i) {
4633 bp = (MonoBreakpoint *)g_ptr_array_index (breakpoints, i);
4638 for (j = 0; j < bp->children->len; ++j) {
4639 inst = (BreakpointInstance *)g_ptr_array_index (bp->children, j);
4640 if (inst->ji == ji && inst->il_offset == sp.il_offset && inst->native_offset == sp.native_offset) {
4641 if (bp->req->event_kind == EVENT_KIND_STEP) {
4642 g_ptr_array_add (ss_reqs_orig, bp->req);
4644 g_ptr_array_add (bp_reqs, bp->req);
4649 if (bp_reqs->len == 0 && ss_reqs_orig->len == 0) {
4650 /* Maybe a method entry/exit event */
4651 if (sp.il_offset == METHOD_ENTRY_IL_OFFSET)
4652 kind = EVENT_KIND_METHOD_ENTRY;
4653 else if (sp.il_offset == METHOD_EXIT_IL_OFFSET)
4654 kind = EVENT_KIND_METHOD_EXIT;
4657 /* Process single step requests */
4658 for (i = 0; i < ss_reqs_orig->len; ++i) {
4659 EventRequest *req = (EventRequest *)g_ptr_array_index (ss_reqs_orig, i);
4660 SingleStepReq *ss_req = (SingleStepReq *)req->info;
4663 if (mono_thread_internal_current () != ss_req->thread)
4666 hit = ss_update (ss_req, ji, &sp, tls, ctx);
4668 g_ptr_array_add (ss_reqs, req);
4670 /* Start single stepping again from the current sequence point */
4671 ss_start (ss_req, method, &sp, info, ctx, tls, FALSE, NULL, 0);
4674 if (ss_reqs->len > 0)
4675 ss_events = create_event_list (EVENT_KIND_STEP, ss_reqs, ji, NULL, &suspend_policy);
4676 if (bp_reqs->len > 0)
4677 bp_events = create_event_list (EVENT_KIND_BREAKPOINT, bp_reqs, ji, NULL, &suspend_policy);
4678 if (kind != EVENT_KIND_BREAKPOINT)
4679 enter_leave_events = create_event_list (kind, NULL, ji, NULL, &suspend_policy);
4681 mono_loader_unlock ();
4683 g_ptr_array_free (bp_reqs, TRUE);
4684 g_ptr_array_free (ss_reqs, TRUE);
4687 * FIXME: The first event will suspend, so the second will only be sent after the
4691 process_event (EVENT_KIND_STEP, method, 0, ctx, ss_events, suspend_policy);
4693 process_event (kind, method, 0, ctx, bp_events, suspend_policy);
4694 if (enter_leave_events)
4695 process_event (kind, method, 0, ctx, enter_leave_events, suspend_policy);
4698 /* Process a breakpoint/single step event after resuming from a signal handler */
4700 process_signal_event (void (*func) (DebuggerTlsData*, gboolean))
4702 DebuggerTlsData *tls;
4703 MonoThreadUnwindState orig_restore_state;
4706 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
4707 /* Have to save/restore the restore_ctx as we can be called recursively during invokes etc. */
4708 memcpy (&orig_restore_state, &tls->restore_state, sizeof (MonoThreadUnwindState));
4709 mono_thread_state_init_from_monoctx (&tls->restore_state, &tls->handler_ctx);
4713 /* This is called when resuming from a signal handler, so it shouldn't return */
4714 memcpy (&ctx, &tls->restore_state.ctx, sizeof (MonoContext));
4715 memcpy (&tls->restore_state, &orig_restore_state, sizeof (MonoThreadUnwindState));
4716 mono_restore_context (&ctx);
4717 g_assert_not_reached ();
4721 process_breakpoint (void)
4723 process_signal_event (process_breakpoint_inner);
4727 resume_from_signal_handler (void *sigctx, void *func)
4729 DebuggerTlsData *tls;
4732 /* Save the original context in TLS */
4733 // FIXME: This might not work on an altstack ?
4734 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
4736 fprintf (stderr, "Thread %p is not attached to the JIT.\n", (gpointer)mono_native_thread_id_get ());
4739 // FIXME: MonoContext usually doesn't include the fp registers, so these are
4740 // clobbered by a single step/breakpoint event. If this turns out to be a problem,
4741 // clob:c could be added to op_seq_point.
4743 mono_sigctx_to_monoctx (sigctx, &ctx);
4744 memcpy (&tls->handler_ctx, &ctx, sizeof (MonoContext));
4745 #ifdef MONO_ARCH_HAVE_SETUP_RESUME_FROM_SIGNAL_HANDLER_CTX
4746 mono_arch_setup_resume_sighandler_ctx (&ctx, func);
4748 MONO_CONTEXT_SET_IP (&ctx, func);
4750 mono_monoctx_to_sigctx (&ctx, sigctx);
4752 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4753 mono_ppc_set_func_into_sigctx (sigctx, func);
4758 mono_debugger_agent_breakpoint_hit (void *sigctx)
4761 * We are called from a signal handler, and running code there causes all kinds of
4762 * problems, like the original signal is disabled, libgc can't handle altstack, etc.
4763 * So set up the signal context to return to the real breakpoint handler function.
4765 resume_from_signal_handler (sigctx, process_breakpoint);
4769 user_break_cb (StackFrameInfo *frame, MonoContext *ctx, gpointer data)
4771 if (frame->managed) {
4772 *(MonoContext*)data = *ctx;
4781 * Called by System.Diagnostics.Debugger:Break ().
4784 mono_debugger_agent_user_break (void)
4786 if (agent_config.enabled) {
4791 /* Obtain a context */
4792 MONO_CONTEXT_SET_IP (&ctx, NULL);
4793 mono_walk_stack_with_ctx (user_break_cb, NULL, (MonoUnwindOptions)0, &ctx);
4794 g_assert (MONO_CONTEXT_GET_IP (&ctx) != NULL);
4796 mono_loader_lock ();
4797 events = create_event_list (EVENT_KIND_USER_BREAK, NULL, NULL, NULL, &suspend_policy);
4798 mono_loader_unlock ();
4800 process_event (EVENT_KIND_USER_BREAK, NULL, 0, &ctx, events, suspend_policy);
4801 } else if (debug_options.native_debugger_break) {
4807 ss_depth_to_string (StepDepth depth)
4810 case STEP_DEPTH_OVER:
4812 case STEP_DEPTH_OUT:
4814 case STEP_DEPTH_INTO:
4817 g_assert_not_reached ();
4823 process_single_step_inner (DebuggerTlsData *tls, gboolean from_signal)
4828 int il_offset, suspend_policy;
4831 MonoContext *ctx = &tls->restore_state.ctx;
4834 MonoSeqPointInfo *info;
4836 ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
4838 /* Skip the instruction causing the single step */
4840 mono_arch_skip_single_step (ctx);
4842 if (suspend_count > 0) {
4843 /* Fastpath during invokes, see in process_suspend () */
4844 if (suspend_count - tls->resume_count == 0)
4846 process_suspend (tls, ctx);
4851 // FIXME: A suspend race
4854 if (mono_thread_internal_current () != ss_req->thread)
4857 if (log_level > 0) {
4858 ji = mini_jit_info_table_find (mono_domain_get (), (char*)ip, &domain);
4860 DEBUG_PRINTF (1, "[%p] Single step event (depth=%s) at %s (%p)[0x%x], sp %p, last sp %p\n", (gpointer)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);
4863 ji = mini_jit_info_table_find (mono_domain_get (), (char*)ip, &domain);
4864 g_assert (ji && !ji->is_trampoline);
4865 method = jinfo_get_method (ji);
4868 if (method->wrapper_type && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
4873 * Stopping in memset makes half-initialized vtypes visible.
4874 * Stopping in memcpy makes half-copied vtypes visible.
4876 if (method->klass == mono_defaults.string_class && (!strcmp (method->name, "memset") || strstr (method->name, "memcpy")))
4880 * The ip points to the instruction causing the single step event, which is before
4881 * the offset recorded in the seq point map, so find the next seq point after ip.
4883 if (!mono_find_next_seq_point_for_native_offset (domain, method, (guint8*)ip - (guint8*)ji->code_start, &info, &sp))
4886 il_offset = sp.il_offset;
4888 if (!ss_update (ss_req, ji, &sp, tls, ctx))
4891 /* Start single stepping again from the current sequence point */
4892 ss_start (ss_req, method, &sp, info, ctx, tls, FALSE, NULL, 0);
4894 if ((ss_req->filter & STEP_FILTER_STATIC_CTOR) &&
4895 (method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
4896 !strcmp (method->name, ".cctor"))
4899 // FIXME: Has to lock earlier
4901 reqs = g_ptr_array_new ();
4903 mono_loader_lock ();
4905 g_ptr_array_add (reqs, ss_req->req);
4907 events = create_event_list (EVENT_KIND_STEP, reqs, ji, NULL, &suspend_policy);
4909 g_ptr_array_free (reqs, TRUE);
4911 mono_loader_unlock ();
4913 process_event (EVENT_KIND_STEP, jinfo_get_method (ji), il_offset, ctx, events, suspend_policy);
4917 process_single_step (void)
4919 process_signal_event (process_single_step_inner);
4923 * mono_debugger_agent_single_step_event:
4925 * Called from a signal handler to handle a single step event.
4928 mono_debugger_agent_single_step_event (void *sigctx)
4930 /* Resume to process_single_step through the signal context */
4932 // FIXME: Since step out/over is implemented using step in, the step in case should
4933 // be as fast as possible. Move the relevant code from process_single_step_inner ()
4936 if (is_debugger_thread ()) {
4938 * This could happen despite our best effors when the runtime calls
4939 * assembly/type resolve hooks.
4940 * FIXME: Breakpoints too.
4944 mono_sigctx_to_monoctx (sigctx, &ctx);
4945 mono_arch_skip_single_step (&ctx);
4946 mono_monoctx_to_sigctx (&ctx, sigctx);
4950 resume_from_signal_handler (sigctx, process_single_step);
4954 debugger_agent_single_step_from_context (MonoContext *ctx)
4956 DebuggerTlsData *tls;
4957 MonoThreadUnwindState orig_restore_state;
4959 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
4960 /* Fastpath during invokes, see in process_suspend () */
4961 if (tls && suspend_count && suspend_count - tls->resume_count == 0)
4964 if (is_debugger_thread ())
4969 /* Have to save/restore the restore_ctx as we can be called recursively during invokes etc. */
4970 memcpy (&orig_restore_state, &tls->restore_state, sizeof (MonoThreadUnwindState));
4971 mono_thread_state_init_from_monoctx (&tls->restore_state, ctx);
4972 memcpy (&tls->handler_ctx, ctx, sizeof (MonoContext));
4974 process_single_step_inner (tls, FALSE);
4976 memcpy (ctx, &tls->restore_state.ctx, sizeof (MonoContext));
4977 memcpy (&tls->restore_state, &orig_restore_state, sizeof (MonoThreadUnwindState));
4981 debugger_agent_breakpoint_from_context (MonoContext *ctx)
4983 DebuggerTlsData *tls;
4984 MonoThreadUnwindState orig_restore_state;
4987 if (is_debugger_thread ())
4990 orig_ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
4991 MONO_CONTEXT_SET_IP (ctx, orig_ip - 1);
4993 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
4995 memcpy (&orig_restore_state, &tls->restore_state, sizeof (MonoThreadUnwindState));
4996 mono_thread_state_init_from_monoctx (&tls->restore_state, ctx);
4997 memcpy (&tls->handler_ctx, ctx, sizeof (MonoContext));
4999 process_breakpoint_inner (tls, FALSE);
5001 memcpy (ctx, &tls->restore_state.ctx, sizeof (MonoContext));
5002 memcpy (&tls->restore_state, &orig_restore_state, sizeof (MonoThreadUnwindState));
5003 if (MONO_CONTEXT_GET_IP (ctx) == orig_ip - 1)
5004 MONO_CONTEXT_SET_IP (ctx, orig_ip);
5008 * start_single_stepping:
5010 * Turn on single stepping. Can be called multiple times, for example,
5011 * by a single step event request + a suspend.
5014 start_single_stepping (void)
5016 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
5017 int val = InterlockedIncrement (&ss_count);
5020 mono_arch_start_single_stepping ();
5022 g_assert_not_reached ();
5027 stop_single_stepping (void)
5029 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
5030 int val = InterlockedDecrement (&ss_count);
5033 mono_arch_stop_single_stepping ();
5035 g_assert_not_reached ();
5042 * Stop the single stepping operation given by SS_REQ.
5045 ss_stop (SingleStepReq *ss_req)
5050 for (l = ss_req->bps; l; l = l->next) {
5051 clear_breakpoint ((MonoBreakpoint *)l->data);
5053 g_slist_free (ss_req->bps);
5057 if (ss_req->global) {
5058 stop_single_stepping ();
5059 ss_req->global = FALSE;
5066 * Start the single stepping operation given by SS_REQ from the sequence point SP.
5067 * If CTX is not set, then this can target any thread. If CTX is set, then TLS should
5068 * belong to the same thread as CTX.
5069 * If FRAMES is not-null, use that instead of tls->frames for placing breakpoints etc.
5072 ss_start (SingleStepReq *ss_req, MonoMethod *method, SeqPoint* sp, MonoSeqPointInfo *info, MonoContext *ctx, DebuggerTlsData *tls,
5073 gboolean step_to_catch, StackFrame **frames, int nframes)
5075 int i, j, frame_index;
5076 SeqPoint *next_sp, *parent_sp = NULL;
5077 SeqPoint local_sp, local_parent_sp;
5080 MonoSeqPointInfo *parent_info;
5081 MonoMethod *parent_sp_method = NULL;
5082 gboolean enable_global = FALSE;
5084 /* Stop the previous operation */
5088 * Implement single stepping using breakpoints if possible.
5090 if (step_to_catch) {
5091 bp = set_breakpoint (method, sp->il_offset, ss_req->req, NULL);
5092 ss_req->bps = g_slist_append (ss_req->bps, bp);
5096 if (ctx && !frames) {
5097 /* Need parent frames */
5098 if (!tls->context.valid)
5099 mono_thread_state_init_from_monoctx (&tls->context, ctx);
5100 compute_frame_info (tls->thread, tls);
5101 frames = tls->frames;
5102 nframes = tls->frame_count;
5106 * Find the first sequence point in the current or in a previous frame which
5107 * is not the last in its method.
5109 if (ss_req->depth == STEP_DEPTH_OUT) {
5110 /* Ignore seq points in current method */
5111 while (frame_index < nframes) {
5112 StackFrame *frame = frames [frame_index];
5114 method = frame->method;
5115 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &info, &local_sp);
5116 sp = (found_sp)? &local_sp : NULL;
5118 if (sp && sp->next_len != 0)
5121 // There could be method calls before the next seq point in the caller when using nested calls
5122 //enable_global = TRUE;
5124 if (sp && sp->next_len == 0) {
5126 while (frame_index < nframes) {
5127 StackFrame *frame = frames [frame_index];
5129 method = frame->method;
5130 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &info, &local_sp);
5131 sp = (found_sp)? &local_sp : NULL;
5132 if (sp && sp->next_len != 0)
5138 /* Have to put a breakpoint into a parent frame since the seq points might not cover all control flow out of the method */
5139 while (frame_index < nframes) {
5140 StackFrame *frame = frames [frame_index];
5142 parent_sp_method = frame->method;
5143 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &parent_info, &local_parent_sp);
5144 parent_sp = found_sp ? &local_parent_sp : NULL;
5145 if (found_sp && parent_sp->next_len != 0)
5153 if (sp && sp->next_len > 0) {
5154 SeqPoint* next = g_new(SeqPoint, sp->next_len);
5156 mono_seq_point_init_next (info, *sp, next);
5157 for (i = 0; i < sp->next_len; i++) {
5160 bp = set_breakpoint (method, next_sp->il_offset, ss_req->req, NULL);
5161 ss_req->bps = g_slist_append (ss_req->bps, bp);
5167 SeqPoint* next = g_new(SeqPoint, parent_sp->next_len);
5169 mono_seq_point_init_next (parent_info, *parent_sp, next);
5170 for (i = 0; i < parent_sp->next_len; i++) {
5173 bp = set_breakpoint (parent_sp_method, next_sp->il_offset, ss_req->req, NULL);
5174 ss_req->bps = g_slist_append (ss_req->bps, bp);
5179 if (ss_req->nframes == 0)
5180 ss_req->nframes = nframes;
5182 if ((ss_req->depth == STEP_DEPTH_OVER) && (!sp && !parent_sp)) {
5183 DEBUG_PRINTF (1, "[dbg] No parent frame for step over, transition to step into.\n");
5185 * This is needed since if we leave managed code, and later return to it, step over
5186 * is not going to stop.
5187 * This approach is a bit ugly, since we change the step depth, but it only affects
5188 * clients who reuse the same step request, and only in this special case.
5190 ss_req->depth = STEP_DEPTH_INTO;
5193 if (ss_req->depth == STEP_DEPTH_OVER) {
5194 /* Need to stop in catch clauses as well */
5195 for (i = 0; i < nframes; ++i) {
5196 StackFrame *frame = frames [i];
5199 MonoJitInfo *jinfo = frame->ji;
5200 for (j = 0; j < jinfo->num_clauses; ++j) {
5201 MonoJitExceptionInfo *ei = &jinfo->clauses [j];
5203 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);
5204 sp = (found_sp)? &local_sp : NULL;
5206 bp = set_breakpoint (frame->method, sp->il_offset, ss_req->req, NULL);
5207 ss_req->bps = g_slist_append (ss_req->bps, bp);
5214 if (ss_req->depth == STEP_DEPTH_INTO) {
5215 /* Enable global stepping so we stop at method entry too */
5216 enable_global = TRUE;
5220 * The ctx/frame info computed above will become invalid when we continue.
5222 tls->context.valid = FALSE;
5223 tls->async_state.valid = FALSE;
5224 invalidate_frames (tls);
5227 if (enable_global) {
5228 DEBUG_PRINTF (1, "[dbg] Turning on global single stepping.\n");
5229 ss_req->global = TRUE;
5230 start_single_stepping ();
5231 } else if (!ss_req->bps) {
5232 DEBUG_PRINTF (1, "[dbg] Turning on global single stepping.\n");
5233 ss_req->global = TRUE;
5234 start_single_stepping ();
5236 ss_req->global = FALSE;
5241 * Start single stepping of thread THREAD
5244 ss_create (MonoInternalThread *thread, StepSize size, StepDepth depth, StepFilter filter, EventRequest *req)
5246 DebuggerTlsData *tls;
5247 MonoSeqPointInfo *info = NULL;
5248 SeqPoint *sp = NULL;
5251 MonoMethod *method = NULL;
5252 MonoDebugMethodInfo *minfo;
5253 gboolean step_to_catch = FALSE;
5254 gboolean set_ip = FALSE;
5255 StackFrame **frames = NULL;
5258 if (suspend_count == 0)
5259 return ERR_NOT_SUSPENDED;
5261 wait_for_suspend ();
5263 // FIXME: Multiple requests
5265 DEBUG_PRINTF (0, "Received a single step request while the previous one was still active.\n");
5266 return ERR_NOT_IMPLEMENTED;
5269 DEBUG_PRINTF (1, "[dbg] Starting single step of thread %p (depth=%s).\n", thread, ss_depth_to_string (depth));
5271 ss_req = g_new0 (SingleStepReq, 1);
5273 ss_req->thread = thread;
5274 ss_req->size = size;
5275 ss_req->depth = depth;
5276 ss_req->filter = filter;
5279 mono_loader_lock ();
5280 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
5281 mono_loader_unlock ();
5283 g_assert (tls->context.valid);
5285 if (tls->restore_state.valid && MONO_CONTEXT_GET_IP (&tls->context.ctx) != MONO_CONTEXT_GET_IP (&tls->restore_state.ctx)) {
5287 * Need to start single stepping from restore_state and not from the current state
5290 frames = compute_frame_info_from (thread, tls, &tls->restore_state, &nframes);
5293 ss_req->start_sp = ss_req->last_sp = MONO_CONTEXT_GET_SP (&tls->context.ctx);
5295 if (tls->catch_state.valid) {
5297 StackFrameInfo frame;
5298 MonoContext new_ctx;
5299 MonoLMF *lmf = NULL;
5302 * We are stopped at a throw site. Stepping should go to the catch site.
5305 /* Find the the jit info for the catch context */
5306 res = mono_find_jit_info_ext (
5307 (MonoDomain *)tls->catch_state.unwind_data [MONO_UNWIND_DATA_DOMAIN],
5308 (MonoJitTlsData *)((MonoThreadInfo*)thread->thread_info)->jit_data,
5309 NULL, &tls->catch_state.ctx, &new_ctx, NULL, &lmf, NULL, &frame);
5311 g_assert (frame.type == FRAME_TYPE_MANAGED);
5314 * Find the seq point corresponding to the landing site ip, which is the first seq
5317 found_sp = mono_find_next_seq_point_for_native_offset (frame.domain, frame.method, frame.native_offset, &info, &local_sp);
5318 sp = (found_sp)? &local_sp : NULL;
5320 no_seq_points_found (frame.method, frame.native_offset);
5323 method = frame.method;
5325 step_to_catch = TRUE;
5326 /* This make sure the seq point is not skipped by process_single_step () */
5327 ss_req->last_sp = NULL;
5330 if (!step_to_catch) {
5331 StackFrame *frame = NULL;
5334 if (frames && nframes)
5337 compute_frame_info (thread, tls);
5339 if (tls->frame_count)
5340 frame = tls->frames [0];
5343 if (ss_req->size == STEP_SIZE_LINE) {
5345 ss_req->last_method = frame->method;
5346 ss_req->last_line = -1;
5348 minfo = mono_debug_lookup_method (frame->method);
5349 if (minfo && frame->il_offset != -1) {
5350 MonoDebugSourceLocation *loc = mono_debug_method_lookup_location (minfo, frame->il_offset);
5353 ss_req->last_line = loc->row;
5361 if (!method && frame->il_offset != -1) {
5362 /* FIXME: Sort the table and use a binary search */
5363 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &info, &local_sp);
5364 sp = (found_sp)? &local_sp : NULL;
5366 no_seq_points_found (frame->method, frame->native_offset);
5368 method = frame->method;
5373 ss_req->start_method = method;
5375 ss_start (ss_req, method, sp, info, set_ip ? &tls->restore_state.ctx : &tls->context.ctx, tls, step_to_catch, frames, nframes);
5378 free_frames (frames, nframes);
5384 ss_destroy (SingleStepReq *req)
5387 g_assert (ss_req == req);
5396 ss_clear_for_assembly (SingleStepReq *req, MonoAssembly *assembly)
5399 gboolean found = TRUE;
5403 for (l = ss_req->bps; l; l = l->next) {
5404 if (breakpoint_matches_assembly ((MonoBreakpoint *)l->data, assembly)) {
5405 clear_breakpoint ((MonoBreakpoint *)l->data);
5406 ss_req->bps = g_slist_delete_link (ss_req->bps, l);
5415 * Called from metadata by the icall for System.Diagnostics.Debugger:Log ().
5418 mono_debugger_agent_debug_log (int level, MonoString *category, MonoString *message)
5424 if (!agent_config.enabled)
5427 mono_loader_lock ();
5428 events = create_event_list (EVENT_KIND_USER_LOG, NULL, NULL, NULL, &suspend_policy);
5429 mono_loader_unlock ();
5432 ei.category = category ? mono_string_to_utf8 (category) : NULL;
5433 ei.message = message ? mono_string_to_utf8 (message) : NULL;
5435 process_event (EVENT_KIND_USER_LOG, &ei, 0, NULL, events, suspend_policy);
5437 g_free (ei.category);
5438 g_free (ei.message);
5442 mono_debugger_agent_debug_log_is_enabled (void)
5444 /* Treat this as true even if there is no event request for EVENT_KIND_USER_LOG */
5445 return agent_config.enabled;
5448 #if defined(PLATFORM_ANDROID) || defined(TARGET_ANDROID)
5450 mono_debugger_agent_unhandled_exception (MonoException *exc)
5459 memset (&ei, 0, sizeof (EventInfo));
5460 ei.exc = (MonoObject*)exc;
5462 mono_loader_lock ();
5463 events = create_event_list (EVENT_KIND_EXCEPTION, NULL, NULL, &ei, &suspend_policy);
5464 mono_loader_unlock ();
5466 process_event (EVENT_KIND_EXCEPTION, &ei, 0, NULL, events, suspend_policy);
5471 mono_debugger_agent_handle_exception (MonoException *exc, MonoContext *throw_ctx,
5472 MonoContext *catch_ctx)
5474 int i, j, suspend_policy;
5476 MonoJitInfo *ji, *catch_ji;
5478 DebuggerTlsData *tls = NULL;
5480 if (thread_to_tls != NULL) {
5481 MonoInternalThread *thread = mono_thread_internal_current ();
5483 mono_loader_lock ();
5484 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
5485 mono_loader_unlock ();
5487 if (tls && tls->abort_requested)
5489 if (tls && tls->disable_breakpoints)
5493 memset (&ei, 0, sizeof (EventInfo));
5495 /* Just-In-Time debugging */
5497 if (agent_config.onuncaught && !inited) {
5498 finish_agent_init (FALSE);
5501 * Send an unsolicited EXCEPTION event with a dummy request id.
5503 events = g_slist_append (NULL, GUINT_TO_POINTER (0xffffff));
5504 ei.exc = (MonoObject*)exc;
5505 process_event (EVENT_KIND_EXCEPTION, &ei, 0, throw_ctx, events, SUSPEND_POLICY_ALL);
5508 } else if (agent_config.onthrow && !inited) {
5510 gboolean found = FALSE;
5512 for (l = agent_config.onthrow; l; l = l->next) {
5513 char *ex_type = (char *)l->data;
5514 char *f = mono_type_full_name (&exc->object.vtable->klass->byval_arg);
5516 if (!strcmp (ex_type, "") || !strcmp (ex_type, f))
5523 finish_agent_init (FALSE);
5526 * Send an unsolicited EXCEPTION event with a dummy request id.
5528 events = g_slist_append (NULL, GUINT_TO_POINTER (0xffffff));
5529 ei.exc = (MonoObject*)exc;
5530 process_event (EVENT_KIND_EXCEPTION, &ei, 0, throw_ctx, events, SUSPEND_POLICY_ALL);
5538 ji = mini_jit_info_table_find (mono_domain_get (), (char *)MONO_CONTEXT_GET_IP (throw_ctx), NULL);
5540 catch_ji = mini_jit_info_table_find (mono_domain_get (), (char *)MONO_CONTEXT_GET_IP (catch_ctx), NULL);
5544 ei.exc = (MonoObject*)exc;
5545 ei.caught = catch_ctx != NULL;
5547 mono_loader_lock ();
5549 /* Treat exceptions which are caught in non-user code as unhandled */
5550 for (i = 0; i < event_requests->len; ++i) {
5551 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
5552 if (req->event_kind != EVENT_KIND_EXCEPTION)
5555 for (j = 0; j < req->nmodifiers; ++j) {
5556 Modifier *mod = &req->modifiers [j];
5558 if (mod->kind == MOD_KIND_ASSEMBLY_ONLY && catch_ji) {
5560 gboolean found = FALSE;
5561 MonoAssembly **assemblies = mod->data.assemblies;
5564 for (k = 0; assemblies [k]; ++k)
5565 if (assemblies [k] == jinfo_get_method (catch_ji)->klass->image->assembly)
5574 events = create_event_list (EVENT_KIND_EXCEPTION, NULL, ji, &ei, &suspend_policy);
5575 mono_loader_unlock ();
5577 if (tls && ei.caught && catch_ctx) {
5578 memset (&tls->catch_state, 0, sizeof (tls->catch_state));
5579 tls->catch_state.ctx = *catch_ctx;
5580 tls->catch_state.unwind_data [MONO_UNWIND_DATA_DOMAIN] = mono_domain_get ();
5581 tls->catch_state.valid = TRUE;
5584 process_event (EVENT_KIND_EXCEPTION, &ei, 0, throw_ctx, events, suspend_policy);
5587 tls->catch_state.valid = FALSE;
5591 mono_debugger_agent_begin_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
5593 DebuggerTlsData *tls;
5598 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
5603 * We're about to invoke an exception filter during the first pass of exception handling.
5605 * 'ctx' is the context that'll get passed to the filter ('call_filter (ctx, ei->data.filter)'),
5606 * 'orig_ctx' is the context where the exception has been thrown.
5609 * See mcs/class/Mono.Debugger.Soft/Tests/dtest-excfilter.il for an example.
5611 * If we're stopped in Filter(), normal stack unwinding would first unwind to
5612 * the call site (line 37) and then continue to Main(), but it would never
5613 * include the throw site (line 32).
5615 * Since exception filters are invoked during the first pass of exception handling,
5616 * the stack frames of the throw site are still intact, so we should include them
5619 * We do this here by saving the context of the throw site in 'tls->filter_state'.
5621 * Exception filters are used by MonoDroid, where we want to stop inside a call filter,
5622 * but report the location of the 'throw' to the user.
5626 g_assert (mono_thread_state_init_from_monoctx (&tls->filter_state, orig_ctx));
5630 mono_debugger_agent_end_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
5632 DebuggerTlsData *tls;
5637 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
5641 tls->filter_state.valid = FALSE;
5645 * buffer_add_value_full:
5647 * Add the encoding of the value at ADDR described by T to the buffer.
5648 * AS_VTYPE determines whenever to treat primitive types as primitive types or
5652 buffer_add_value_full (Buffer *buf, MonoType *t, void *addr, MonoDomain *domain,
5653 gboolean as_vtype, GHashTable *parent_vtypes)
5656 gboolean boxed_vtype = FALSE;
5659 if (!(*(void**)addr)) {
5660 /* This can happen with compiler generated locals */
5661 //printf ("%s\n", mono_type_full_name (t));
5662 buffer_add_byte (buf, VALUE_TYPE_ID_NULL);
5665 g_assert (*(void**)addr);
5666 addr = *(void**)addr;
5671 case MONO_TYPE_BOOLEAN:
5674 case MONO_TYPE_CHAR:
5694 case MONO_TYPE_VOID:
5695 buffer_add_byte (buf, t->type);
5697 case MONO_TYPE_BOOLEAN:
5700 buffer_add_byte (buf, t->type);
5701 buffer_add_int (buf, *(gint8*)addr);
5703 case MONO_TYPE_CHAR:
5706 buffer_add_byte (buf, t->type);
5707 buffer_add_int (buf, *(gint16*)addr);
5712 buffer_add_byte (buf, t->type);
5713 buffer_add_int (buf, *(gint32*)addr);
5718 buffer_add_byte (buf, t->type);
5719 buffer_add_long (buf, *(gint64*)addr);
5723 /* Treat it as a vtype */
5725 case MONO_TYPE_PTR: {
5726 gssize val = *(gssize*)addr;
5728 buffer_add_byte (buf, t->type);
5729 buffer_add_long (buf, val);
5733 case MONO_TYPE_STRING:
5734 case MONO_TYPE_SZARRAY:
5735 case MONO_TYPE_OBJECT:
5736 case MONO_TYPE_CLASS:
5737 case MONO_TYPE_ARRAY:
5738 obj = *(MonoObject**)addr;
5741 buffer_add_byte (buf, VALUE_TYPE_ID_NULL);
5743 if (obj->vtable->klass->valuetype) {
5744 t = &obj->vtable->klass->byval_arg;
5745 addr = mono_object_unbox (obj);
5748 } else if (obj->vtable->klass->rank) {
5749 buffer_add_byte (buf, obj->vtable->klass->byval_arg.type);
5750 } else if (obj->vtable->klass->byval_arg.type == MONO_TYPE_GENERICINST) {
5751 buffer_add_byte (buf, MONO_TYPE_CLASS);
5753 buffer_add_byte (buf, obj->vtable->klass->byval_arg.type);
5755 buffer_add_objid (buf, obj);
5759 case MONO_TYPE_VALUETYPE:
5760 case MONO_TYPE_TYPEDBYREF: {
5764 MonoClass *klass = mono_class_from_mono_type (t);
5769 * Handle boxed vtypes recursively referencing themselves using fields.
5772 parent_vtypes = g_hash_table_new (NULL, NULL);
5773 vtype_index = GPOINTER_TO_INT (g_hash_table_lookup (parent_vtypes, addr));
5775 if (CHECK_PROTOCOL_VERSION (2, 33)) {
5776 buffer_add_byte (buf, VALUE_TYPE_ID_PARENT_VTYPE);
5777 buffer_add_int (buf, vtype_index - 1);
5779 /* The client can't handle PARENT_VTYPE */
5780 buffer_add_byte (buf, VALUE_TYPE_ID_NULL);
5784 g_hash_table_insert (parent_vtypes, addr, GINT_TO_POINTER (g_hash_table_size (parent_vtypes) + 1));
5788 buffer_add_byte (buf, MONO_TYPE_VALUETYPE);
5789 buffer_add_byte (buf, klass->enumtype);
5790 buffer_add_typeid (buf, domain, klass);
5794 while ((f = mono_class_get_fields (klass, &iter))) {
5795 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC)
5797 if (mono_field_is_deleted (f))
5801 buffer_add_int (buf, nfields);
5804 while ((f = mono_class_get_fields (klass, &iter))) {
5805 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC)
5807 if (mono_field_is_deleted (f))
5809 buffer_add_value_full (buf, f->type, (guint8*)addr + f->offset - sizeof (MonoObject), domain, FALSE, parent_vtypes);
5813 g_hash_table_remove (parent_vtypes, addr);
5814 if (g_hash_table_size (parent_vtypes) == 0) {
5815 g_hash_table_destroy (parent_vtypes);
5816 parent_vtypes = NULL;
5821 case MONO_TYPE_GENERICINST:
5822 if (mono_type_generic_inst_is_valuetype (t)) {
5834 buffer_add_value (Buffer *buf, MonoType *t, void *addr, MonoDomain *domain)
5836 buffer_add_value_full (buf, t, addr, domain, FALSE, NULL);
5840 obj_is_of_type (MonoObject *obj, MonoType *t)
5842 MonoClass *klass = obj->vtable->klass;
5843 if (!mono_class_is_assignable_from (mono_class_from_mono_type (t), klass)) {
5844 if (mono_class_is_transparent_proxy (klass)) {
5845 klass = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
5846 if (mono_class_is_assignable_from (mono_class_from_mono_type (t), klass)) {
5856 decode_value (MonoType *t, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit);
5859 decode_vtype (MonoType *t, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit)
5865 gpointer iter = NULL;
5869 is_enum = decode_byte (buf, &buf, limit);
5870 /* Enums are sent as a normal vtype */
5872 return ERR_NOT_IMPLEMENTED;
5873 klass = decode_typeid (buf, &buf, limit, &d, &err);
5874 if (err != ERR_NONE)
5877 if (t && klass != mono_class_from_mono_type (t)) {
5878 char *name = mono_type_full_name (t);
5879 char *name2 = mono_type_full_name (&klass->byval_arg);
5880 DEBUG_PRINTF (1, "[%p] Expected value of type %s, got %s.\n", (gpointer)mono_native_thread_id_get (), name, name2);
5883 return ERR_INVALID_ARGUMENT;
5886 nfields = decode_int (buf, &buf, limit);
5887 while ((f = mono_class_get_fields (klass, &iter))) {
5888 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC)
5890 if (mono_field_is_deleted (f))
5892 err = decode_value (f->type, domain, (guint8*)addr + f->offset - sizeof (MonoObject), buf, &buf, limit);
5893 if (err != ERR_NONE)
5897 g_assert (nfields == 0);
5905 decode_value_internal (MonoType *t, int type, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit)
5909 if (type != t->type && !MONO_TYPE_IS_REFERENCE (t) &&
5910 !(t->type == MONO_TYPE_I && type == MONO_TYPE_VALUETYPE) &&
5911 !(t->type == MONO_TYPE_U && type == MONO_TYPE_VALUETYPE) &&
5912 !(t->type == MONO_TYPE_PTR && type == MONO_TYPE_I8) &&
5913 !(t->type == MONO_TYPE_GENERICINST && type == MONO_TYPE_VALUETYPE) &&
5914 !(t->type == MONO_TYPE_VALUETYPE && type == MONO_TYPE_OBJECT)) {
5915 char *name = mono_type_full_name (t);
5916 DEBUG_PRINTF (1, "[%p] Expected value of type %s, got 0x%0x.\n", (gpointer)mono_native_thread_id_get (), name, type);
5918 return ERR_INVALID_ARGUMENT;
5922 case MONO_TYPE_BOOLEAN:
5923 *(guint8*)addr = decode_int (buf, &buf, limit);
5925 case MONO_TYPE_CHAR:
5926 *(gunichar2*)addr = decode_int (buf, &buf, limit);
5929 *(gint8*)addr = decode_int (buf, &buf, limit);
5932 *(guint8*)addr = decode_int (buf, &buf, limit);
5935 *(gint16*)addr = decode_int (buf, &buf, limit);
5938 *(guint16*)addr = decode_int (buf, &buf, limit);
5941 *(gint32*)addr = decode_int (buf, &buf, limit);
5944 *(guint32*)addr = decode_int (buf, &buf, limit);
5947 *(gint64*)addr = decode_long (buf, &buf, limit);
5950 *(guint64*)addr = decode_long (buf, &buf, limit);
5953 *(guint32*)addr = decode_int (buf, &buf, limit);
5956 *(guint64*)addr = decode_long (buf, &buf, limit);
5959 /* We send these as I8, so we get them back as such */
5960 g_assert (type == MONO_TYPE_I8);
5961 *(gssize*)addr = decode_long (buf, &buf, limit);
5963 case MONO_TYPE_GENERICINST:
5964 if (MONO_TYPE_ISSTRUCT (t)) {
5965 /* The client sends these as a valuetype */
5973 /* We send these as vtypes, so we get them back as such */
5974 g_assert (type == MONO_TYPE_VALUETYPE);
5977 case MONO_TYPE_VALUETYPE:
5978 if (type == MONO_TYPE_OBJECT) {
5980 int objid = decode_objid (buf, &buf, limit);
5984 err = get_object (objid, (MonoObject**)&obj);
5985 if (err != ERR_NONE)
5988 return ERR_INVALID_ARGUMENT;
5989 if (obj->vtable->klass != mono_class_from_mono_type (t)) {
5990 DEBUG_PRINTF (1, "Expected type '%s', got object '%s'\n", mono_type_full_name (t), obj->vtable->klass->name);
5991 return ERR_INVALID_ARGUMENT;
5993 memcpy (addr, mono_object_unbox (obj), mono_class_value_size (obj->vtable->klass, NULL));
5995 err = decode_vtype (t, domain, addr, buf, &buf, limit);
5996 if (err != ERR_NONE)
6002 if (MONO_TYPE_IS_REFERENCE (t)) {
6003 if (type == MONO_TYPE_OBJECT) {
6004 int objid = decode_objid (buf, &buf, limit);
6008 err = get_object (objid, (MonoObject**)&obj);
6009 if (err != ERR_NONE)
6013 if (!obj_is_of_type (obj, t)) {
6014 DEBUG_PRINTF (1, "Expected type '%s', got '%s'\n", mono_type_full_name (t), obj->vtable->klass->name);
6015 return ERR_INVALID_ARGUMENT;
6018 if (obj && obj->vtable->domain != domain)
6019 return ERR_INVALID_ARGUMENT;
6021 mono_gc_wbarrier_generic_store (addr, obj);
6022 } else if (type == VALUE_TYPE_ID_NULL) {
6023 *(MonoObject**)addr = NULL;
6024 } else if (type == MONO_TYPE_VALUETYPE) {
6032 /* This can happen when round-tripping boxed vtypes */
6034 * Obtain vtype class.
6035 * Same as the beginning of the handle_vtype case above.
6038 is_enum = decode_byte (buf, &buf, limit);
6040 return ERR_NOT_IMPLEMENTED;
6041 klass = decode_typeid (buf, &buf, limit, &d, &err);
6042 if (err != ERR_NONE)
6045 /* Decode the vtype into a temporary buffer, then box it. */
6046 vtype_buf_size = mono_class_value_size (klass, NULL);
6047 vtype_buf = (guint8 *)g_malloc0 (vtype_buf_size);
6048 g_assert (vtype_buf);
6051 err = decode_vtype (NULL, domain, vtype_buf, buf, &buf, limit);
6052 if (err != ERR_NONE) {
6056 *(MonoObject**)addr = mono_value_box (d, klass, vtype_buf);
6059 char *name = mono_type_full_name (t);
6060 DEBUG_PRINTF (1, "[%p] Expected value of type %s, got 0x%0x.\n", (gpointer)mono_native_thread_id_get (), name, type);
6062 return ERR_INVALID_ARGUMENT;
6076 decode_value (MonoType *t, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit)
6079 int type = decode_byte (buf, &buf, limit);
6081 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
6082 MonoType *targ = t->data.generic_class->context.class_inst->type_argv [0];
6083 guint8 *nullable_buf;
6086 * First try decoding it as a Nullable`1
6088 err = decode_value_internal (t, type, domain, addr, buf, endbuf, limit);
6089 if (err == ERR_NONE)
6093 * Then try decoding as a primitive value or null.
6095 if (targ->type == type) {
6096 nullable_buf = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (targ)));
6097 err = decode_value_internal (targ, type, domain, nullable_buf, buf, endbuf, limit);
6098 if (err != ERR_NONE) {
6099 g_free (nullable_buf);
6102 mono_nullable_init (addr, mono_value_box (domain, mono_class_from_mono_type (targ), nullable_buf), mono_class_from_mono_type (t));
6103 g_free (nullable_buf);
6106 } else if (type == VALUE_TYPE_ID_NULL) {
6107 mono_nullable_init (addr, NULL, mono_class_from_mono_type (t));
6113 return decode_value_internal (t, type, domain, addr, buf, endbuf, limit);
6117 add_var (Buffer *buf, MonoDebugMethodJitInfo *jit, MonoType *t, MonoDebugVarInfo *var, MonoContext *ctx, MonoDomain *domain, gboolean as_vtype)
6121 guint8 *addr, *gaddr;
6124 flags = var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6125 reg = var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6128 case MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER:
6129 reg_val = mono_arch_context_get_int_reg (ctx, reg);
6131 buffer_add_value_full (buf, t, ®_val, domain, as_vtype, NULL);
6133 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET:
6134 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6135 addr += (gint32)var->offset;
6137 //printf ("[R%d+%d] = %p\n", reg, var->offset, addr);
6139 buffer_add_value_full (buf, t, addr, domain, as_vtype, NULL);
6141 case MONO_DEBUG_VAR_ADDRESS_MODE_DEAD:
6144 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET_INDIR:
6145 case MONO_DEBUG_VAR_ADDRESS_MODE_VTADDR:
6146 /* Same as regoffset, but with an indirection */
6147 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6148 addr += (gint32)var->offset;
6150 gaddr = (guint8 *)*(gpointer*)addr;
6152 buffer_add_value_full (buf, t, gaddr, domain, as_vtype, NULL);
6154 case MONO_DEBUG_VAR_ADDRESS_MODE_GSHAREDVT_LOCAL: {
6155 MonoDebugVarInfo *info_var = jit->gsharedvt_info_var;
6156 MonoDebugVarInfo *locals_var = jit->gsharedvt_locals_var;
6157 MonoGSharedVtMethodRuntimeInfo *info;
6163 g_assert (info_var);
6164 g_assert (locals_var);
6166 flags = info_var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6167 reg = info_var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6168 if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET) {
6169 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6170 addr += (gint32)info_var->offset;
6171 info = (MonoGSharedVtMethodRuntimeInfo *)*(gpointer*)addr;
6172 } else if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER) {
6173 info = (MonoGSharedVtMethodRuntimeInfo *)mono_arch_context_get_int_reg (ctx, reg);
6175 g_assert_not_reached ();
6179 flags = locals_var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6180 reg = locals_var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6181 if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET) {
6182 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6183 addr += (gint32)locals_var->offset;
6184 locals = (guint8 *)*(gpointer*)addr;
6185 } else if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER) {
6186 locals = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6188 g_assert_not_reached ();
6192 addr = locals + GPOINTER_TO_INT (info->entries [idx]);
6194 buffer_add_value_full (buf, t, addr, domain, as_vtype, NULL);
6199 g_assert_not_reached ();
6204 set_var (MonoType *t, MonoDebugVarInfo *var, MonoContext *ctx, MonoDomain *domain, guint8 *val, mgreg_t **reg_locations, MonoContext *restore_ctx)
6208 guint8 *addr, *gaddr;
6210 flags = var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6211 reg = var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6213 if (MONO_TYPE_IS_REFERENCE (t))
6214 size = sizeof (gpointer);
6216 size = mono_class_value_size (mono_class_from_mono_type (t), NULL);
6219 case MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER: {
6220 #ifdef MONO_ARCH_HAVE_CONTEXT_SET_INT_REG
6222 gboolean is_signed = FALSE;
6225 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6228 // FIXME: Write barriers
6229 mono_gc_memmove_atomic (addr, val, size);
6234 if (!t->byref && (t->type == MONO_TYPE_I1 || t->type == MONO_TYPE_I2 || t->type == MONO_TYPE_I4 || t->type == MONO_TYPE_I8))
6239 v = is_signed ? *(gint8*)val : *(guint8*)val;
6242 v = is_signed ? *(gint16*)val : *(guint16*)val;
6245 v = is_signed ? *(gint32*)val : *(guint32*)val;
6248 v = is_signed ? *(gint64*)val : *(guint64*)val;
6251 g_assert_not_reached ();
6254 /* Set value on the stack or in the return ctx */
6255 if (reg_locations [reg]) {
6256 /* Saved on the stack */
6257 DEBUG_PRINTF (1, "[dbg] Setting stack location %p for reg %x to %p.\n", reg_locations [reg], reg, (gpointer)v);
6258 *(reg_locations [reg]) = v;
6261 DEBUG_PRINTF (1, "[dbg] Setting context location for reg %x to %p.\n", reg, (gpointer)v);
6262 mono_arch_context_set_int_reg (restore_ctx, reg, v);
6265 // FIXME: Move these to mono-context.h/c.
6266 mono_arch_context_set_int_reg (ctx, reg, v);
6268 // FIXME: Can't set registers, so we disable linears
6273 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET:
6274 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6275 addr += (gint32)var->offset;
6277 //printf ("[R%d+%d] = %p\n", reg, var->offset, addr);
6280 addr = *(guint8**)addr;
6286 // FIXME: Write barriers
6287 mono_gc_memmove_atomic (addr, val, size);
6289 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET_INDIR:
6290 /* Same as regoffset, but with an indirection */
6291 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6292 addr += (gint32)var->offset;
6294 gaddr = (guint8 *)*(gpointer*)addr;
6296 // FIXME: Write barriers
6297 mono_gc_memmove_atomic (gaddr, val, size);
6299 case MONO_DEBUG_VAR_ADDRESS_MODE_DEAD:
6303 g_assert_not_reached ();
6308 clear_event_request (int req_id, int etype)
6312 mono_loader_lock ();
6313 for (i = 0; i < event_requests->len; ++i) {
6314 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
6316 if (req->id == req_id && req->event_kind == etype) {
6317 if (req->event_kind == EVENT_KIND_BREAKPOINT)
6318 clear_breakpoint ((MonoBreakpoint *)req->info);
6319 if (req->event_kind == EVENT_KIND_STEP)
6320 ss_destroy ((SingleStepReq *)req->info);
6321 if (req->event_kind == EVENT_KIND_METHOD_ENTRY)
6322 clear_breakpoint ((MonoBreakpoint *)req->info);
6323 if (req->event_kind == EVENT_KIND_METHOD_EXIT)
6324 clear_breakpoint ((MonoBreakpoint *)req->info);
6325 g_ptr_array_remove_index_fast (event_requests, i);
6330 mono_loader_unlock ();
6334 clear_assembly_from_modifier (EventRequest *req, Modifier *m, MonoAssembly *assembly)
6338 if (m->kind == MOD_KIND_EXCEPTION_ONLY && m->data.exc_class && m->data.exc_class->image->assembly == assembly)
6339 m->kind = MOD_KIND_NONE;
6340 if (m->kind == MOD_KIND_ASSEMBLY_ONLY && m->data.assemblies) {
6341 int count = 0, match_count = 0, pos;
6342 MonoAssembly **newassemblies;
6344 for (i = 0; m->data.assemblies [i]; ++i) {
6346 if (m->data.assemblies [i] == assembly)
6351 newassemblies = g_new0 (MonoAssembly*, count - match_count);
6354 for (i = 0; i < count; ++i)
6355 if (m->data.assemblies [i] != assembly)
6356 newassemblies [pos ++] = m->data.assemblies [i];
6357 g_assert (pos == count - match_count);
6358 g_free (m->data.assemblies);
6359 m->data.assemblies = newassemblies;
6365 clear_assembly_from_modifiers (EventRequest *req, MonoAssembly *assembly)
6369 for (i = 0; i < req->nmodifiers; ++i) {
6370 Modifier *m = &req->modifiers [i];
6372 clear_assembly_from_modifier (req, m, assembly);
6377 * clear_event_requests_for_assembly:
6379 * Clear all events requests which reference ASSEMBLY.
6382 clear_event_requests_for_assembly (MonoAssembly *assembly)
6387 mono_loader_lock ();
6391 for (i = 0; i < event_requests->len; ++i) {
6392 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
6394 clear_assembly_from_modifiers (req, assembly);
6396 if (req->event_kind == EVENT_KIND_BREAKPOINT && breakpoint_matches_assembly ((MonoBreakpoint *)req->info, assembly)) {
6397 clear_event_request (req->id, req->event_kind);
6402 if (req->event_kind == EVENT_KIND_STEP)
6403 ss_clear_for_assembly ((SingleStepReq *)req->info, assembly);
6406 mono_loader_unlock ();
6410 * type_comes_from_assembly:
6412 * GHRFunc that returns TRUE if klass comes from assembly
6415 type_comes_from_assembly (gpointer klass, gpointer also_klass, gpointer assembly)
6417 return (mono_class_get_image ((MonoClass*)klass) == mono_assembly_get_image ((MonoAssembly*)assembly));
6421 * clear_types_for_assembly:
6423 * Clears types from loaded_classes for a given assembly
6426 clear_types_for_assembly (MonoAssembly *assembly)
6428 MonoDomain *domain = mono_domain_get ();
6429 AgentDomainInfo *info = NULL;
6431 if (!domain || !domain_jit_info (domain))
6432 /* Can happen during shutdown */
6435 info = get_agent_domain_info (domain);
6437 mono_loader_lock ();
6438 g_hash_table_foreach_remove (info->loaded_classes, type_comes_from_assembly, assembly);
6439 mono_loader_unlock ();
6443 add_thread (gpointer key, gpointer value, gpointer user_data)
6445 MonoInternalThread *thread = (MonoInternalThread *)value;
6446 Buffer *buf = (Buffer *)user_data;
6448 buffer_add_objid (buf, (MonoObject*)thread);
6452 do_invoke_method (DebuggerTlsData *tls, Buffer *buf, InvokeData *invoke, guint8 *p, guint8 **endp)
6454 guint8 *end = invoke->endp;
6458 MonoMethodSignature *sig;
6461 MonoObject *this_arg, *res, *exc;
6464 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
6467 MonoStopwatch watch;
6469 if (invoke->method) {
6471 * Invoke this method directly, currently only Environment.Exit () is supported.
6474 DEBUG_PRINTF (1, "[%p] Invoking method '%s' on receiver '%s'.\n", (gpointer)mono_native_thread_id_get (), mono_method_full_name (invoke->method, TRUE), this_arg ? this_arg->vtable->klass->name : "<null>");
6475 mono_runtime_invoke (invoke->method, NULL, invoke->args, &exc);
6476 g_assert_not_reached ();
6479 m = decode_methodid (p, &p, end, &domain, &err);
6480 if (err != ERR_NONE)
6482 sig = mono_method_signature (m);
6484 if (m->klass->valuetype)
6485 this_buf = (guint8 *)g_alloca (mono_class_instance_size (m->klass));
6487 this_buf = (guint8 *)g_alloca (sizeof (MonoObject*));
6488 if (m->klass->valuetype && (m->flags & METHOD_ATTRIBUTE_STATIC)) {
6489 /* Should be null */
6490 int type = decode_byte (p, &p, end);
6491 if (type != VALUE_TYPE_ID_NULL) {
6492 DEBUG_PRINTF (1, "[%p] Error: Static vtype method invoked with this argument.\n", (gpointer)mono_native_thread_id_get ());
6493 return ERR_INVALID_ARGUMENT;
6495 memset (this_buf, 0, mono_class_instance_size (m->klass));
6496 } else if (m->klass->valuetype && !strcmp (m->name, ".ctor")) {
6500 int type = decode_byte (p, &tmp_p, end);
6501 if (type == VALUE_TYPE_ID_NULL) {
6502 memset (this_buf, 0, mono_class_instance_size (m->klass));
6505 err = decode_value (&m->klass->byval_arg, domain, this_buf, p, &p, end);
6506 if (err != ERR_NONE)
6510 err = decode_value (&m->klass->byval_arg, domain, this_buf, p, &p, end);
6511 if (err != ERR_NONE)
6515 if (!m->klass->valuetype)
6516 this_arg = *(MonoObject**)this_buf;
6520 if (MONO_CLASS_IS_INTERFACE (m->klass)) {
6522 DEBUG_PRINTF (1, "[%p] Error: Interface method invoked without this argument.\n", (gpointer)mono_native_thread_id_get ());
6523 return ERR_INVALID_ARGUMENT;
6525 m = mono_object_get_virtual_method (this_arg, m);
6526 /* Transform this to the format the rest of the code expects it to be */
6527 if (m->klass->valuetype) {
6528 this_buf = (guint8 *)g_alloca (mono_class_instance_size (m->klass));
6529 memcpy (this_buf, mono_object_unbox (this_arg), mono_class_instance_size (m->klass));
6531 } else if ((m->flags & METHOD_ATTRIBUTE_VIRTUAL) && !m->klass->valuetype && invoke->flags & INVOKE_FLAG_VIRTUAL) {
6533 DEBUG_PRINTF (1, "[%p] Error: invoke with INVOKE_FLAG_VIRTUAL flag set without this argument.\n", (gpointer)mono_native_thread_id_get ());
6534 return ERR_INVALID_ARGUMENT;
6536 m = mono_object_get_virtual_method (this_arg, m);
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));
6543 DEBUG_PRINTF (1, "[%p] Invoking method '%s' on receiver '%s'.\n", (gpointer)mono_native_thread_id_get (), mono_method_full_name (m, TRUE), this_arg ? this_arg->vtable->klass->name : "<null>");
6545 if (this_arg && this_arg->vtable->domain != domain)
6548 if (!m->klass->valuetype && !(m->flags & METHOD_ATTRIBUTE_STATIC) && !this_arg) {
6549 if (!strcmp (m->name, ".ctor")) {
6550 if (m->klass->flags & TYPE_ATTRIBUTE_ABSTRACT)
6551 return ERR_INVALID_ARGUMENT;
6553 this_arg = mono_object_new (domain, m->klass);
6555 return ERR_INVALID_ARGUMENT;
6559 if (this_arg && !obj_is_of_type (this_arg, &m->klass->byval_arg))
6560 return ERR_INVALID_ARGUMENT;
6562 nargs = decode_int (p, &p, end);
6563 if (nargs != sig->param_count)
6564 return ERR_INVALID_ARGUMENT;
6565 /* Use alloca to get gc tracking */
6566 arg_buf = (guint8 **)g_alloca (nargs * sizeof (gpointer));
6567 memset (arg_buf, 0, nargs * sizeof (gpointer));
6568 args = (gpointer *)g_alloca (nargs * sizeof (gpointer));
6569 for (i = 0; i < nargs; ++i) {
6570 if (MONO_TYPE_IS_REFERENCE (sig->params [i])) {
6571 err = decode_value (sig->params [i], domain, (guint8*)&args [i], p, &p, end);
6572 if (err != ERR_NONE)
6574 if (args [i] && ((MonoObject*)args [i])->vtable->domain != domain)
6577 if (sig->params [i]->byref) {
6578 arg_buf [i] = (guint8 *)g_alloca (sizeof (mgreg_t));
6579 *(gpointer*)arg_buf [i] = args [i];
6580 args [i] = arg_buf [i];
6583 arg_buf [i] = (guint8 *)g_alloca (mono_class_instance_size (mono_class_from_mono_type (sig->params [i])));
6584 err = decode_value (sig->params [i], domain, arg_buf [i], p, &p, end);
6585 if (err != ERR_NONE)
6587 args [i] = arg_buf [i];
6594 if (invoke->flags & INVOKE_FLAG_DISABLE_BREAKPOINTS)
6595 tls->disable_breakpoints = TRUE;
6597 tls->disable_breakpoints = FALSE;
6600 * Add an LMF frame to link the stack frames on the invoke method with our caller.
6602 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
6603 if (invoke->has_ctx) {
6606 lmf_addr = mono_get_lmf_addr ();
6609 memset (&ext, 0, sizeof (ext));
6610 mono_arch_init_lmf_ext (&ext, *lmf_addr);
6612 ext.debugger_invoke = TRUE;
6613 memcpy (&ext.ctx, &invoke->ctx, sizeof (MonoContext));
6615 mono_set_lmf ((MonoLMF*)&ext);
6619 mono_stopwatch_start (&watch);
6620 if (m->klass->valuetype)
6621 res = mono_runtime_invoke (m, this_buf, args, &exc);
6623 res = mono_runtime_invoke (m, this_arg, args, &exc);
6624 mono_stopwatch_stop (&watch);
6625 DEBUG_PRINTF (1, "[%p] Invoke result: %p, exc: %s, time: %ld ms.\n", (gpointer)mono_native_thread_id_get (), res, exc ? exc->vtable->klass->name : NULL, (long)mono_stopwatch_elapsed_ms (&watch));
6627 buffer_add_byte (buf, 0);
6628 buffer_add_value (buf, &mono_defaults.object_class->byval_arg, &exc, domain);
6630 gboolean out_this = FALSE;
6631 gboolean out_args = FALSE;
6633 if ((invoke->flags & INVOKE_FLAG_RETURN_OUT_THIS) && CHECK_PROTOCOL_VERSION (2, 35))
6635 if ((invoke->flags & INVOKE_FLAG_RETURN_OUT_ARGS) && CHECK_PROTOCOL_VERSION (2, 35))
6637 buffer_add_byte (buf, 1 + (out_this ? 2 : 0) + (out_args ? 4 : 0));
6638 if (sig->ret->type == MONO_TYPE_VOID) {
6639 if (!strcmp (m->name, ".ctor")) {
6640 if (!m->klass->valuetype)
6641 buffer_add_value (buf, &mono_defaults.object_class->byval_arg, &this_arg, domain);
6643 buffer_add_value (buf, &m->klass->byval_arg, this_buf, domain);
6645 buffer_add_value (buf, &mono_defaults.void_class->byval_arg, NULL, domain);
6647 } else if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
6648 buffer_add_value (buf, sig->ret, &res, domain);
6649 } else if (mono_class_from_mono_type (sig->ret)->valuetype || sig->ret->type == MONO_TYPE_PTR || sig->ret->type == MONO_TYPE_FNPTR) {
6650 if (mono_class_is_nullable (mono_class_from_mono_type (sig->ret))) {
6651 MonoClass *k = mono_class_from_mono_type (sig->ret);
6652 guint8 *nullable_buf = (guint8 *)g_alloca (mono_class_value_size (k, NULL));
6654 g_assert (nullable_buf);
6655 mono_nullable_init (nullable_buf, res, k);
6656 buffer_add_value (buf, sig->ret, nullable_buf, domain);
6659 buffer_add_value (buf, sig->ret, mono_object_unbox (res), domain);
6665 /* Return the new value of the receiver after the call */
6666 buffer_add_value (buf, &m->klass->byval_arg, this_buf, domain);
6668 buffer_add_int (buf, nargs);
6669 for (i = 0; i < nargs; ++i) {
6670 if (MONO_TYPE_IS_REFERENCE (sig->params [i]))
6671 buffer_add_value (buf, sig->params [i], &args [i], domain);
6672 else if (sig->params [i]->byref)
6673 /* add_value () does an indirection */
6674 buffer_add_value (buf, sig->params [i], &arg_buf [i], domain);
6676 buffer_add_value (buf, sig->params [i], arg_buf [i], domain);
6681 tls->disable_breakpoints = FALSE;
6683 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
6684 if (invoke->has_ctx)
6685 mono_set_lmf ((MonoLMF *)(((gssize)ext.lmf.previous_lmf) & ~3));
6689 // FIXME: byref arguments
6697 * Invoke the method given by tls->pending_invoke in the current thread.
6700 invoke_method (void)
6702 DebuggerTlsData *tls;
6708 MonoContext restore_ctx;
6711 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
6715 * Store the `InvokeData *' in `tls->invoke' until we're done with
6716 * the invocation, so CMD_VM_ABORT_INVOKE can check it.
6719 mono_loader_lock ();
6721 invoke = tls->pending_invoke;
6723 tls->pending_invoke = NULL;
6725 invoke->last_invoke = tls->invoke;
6726 tls->invoke = invoke;
6728 mono_loader_unlock ();
6730 tls->frames_up_to_date = FALSE;
6736 for (mindex = 0; mindex < invoke->nmethods; ++mindex) {
6737 buffer_init (&buf, 128);
6740 /* Fail the other invokes as well */
6742 err = do_invoke_method (tls, &buf, invoke, p, &p);
6745 if (tls->abort_requested) {
6746 if (CHECK_PROTOCOL_VERSION (2, 42))
6747 err = ERR_INVOKE_ABORTED;
6750 /* Start suspending before sending the reply */
6751 if (mindex == invoke->nmethods - 1) {
6752 if (!(invoke->flags & INVOKE_FLAG_SINGLE_THREADED)) {
6753 for (i = 0; i < invoke->suspend_count; ++i)
6758 send_reply_packet (id, err, &buf);
6763 memcpy (&restore_ctx, &invoke->ctx, sizeof (MonoContext));
6765 if (invoke->has_ctx)
6766 save_thread_context (&restore_ctx);
6768 if (invoke->flags & INVOKE_FLAG_SINGLE_THREADED) {
6769 g_assert (tls->resume_count);
6770 tls->resume_count -= invoke->suspend_count;
6773 DEBUG_PRINTF (1, "[%p] Invoke finished (%d), resume_count = %d.\n", (gpointer)mono_native_thread_id_get (), err, tls->resume_count);
6776 * Take the loader lock to avoid race conditions with CMD_VM_ABORT_INVOKE:
6778 * It is possible that ves_icall_System_Threading_Thread_Abort () was called
6779 * after the mono_runtime_invoke() already returned, but it doesn't matter
6780 * because we reset the abort here.
6783 mono_loader_lock ();
6785 if (tls->abort_requested)
6786 mono_thread_internal_reset_abort (tls->thread);
6788 tls->invoke = tls->invoke->last_invoke;
6789 tls->abort_requested = FALSE;
6791 mono_loader_unlock ();
6800 is_really_suspended (gpointer key, gpointer value, gpointer user_data)
6802 MonoThread *thread = (MonoThread *)value;
6803 DebuggerTlsData *tls;
6806 mono_loader_lock ();
6807 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
6809 res = tls->really_suspended;
6810 mono_loader_unlock ();
6816 get_source_files_for_type (MonoClass *klass)
6818 gpointer iter = NULL;
6820 MonoDebugSourceInfo *sinfo;
6824 files = g_ptr_array_new ();
6826 while ((method = mono_class_get_methods (klass, &iter))) {
6827 MonoDebugMethodInfo *minfo = mono_debug_lookup_method (method);
6828 GPtrArray *source_file_list;
6831 mono_debug_get_seq_points (minfo, NULL, &source_file_list, NULL, NULL, NULL);
6832 for (j = 0; j < source_file_list->len; ++j) {
6833 sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, j);
6834 for (i = 0; i < files->len; ++i)
6835 if (!strcmp (g_ptr_array_index (files, i), sinfo->source_file))
6837 if (i == files->len)
6838 g_ptr_array_add (files, g_strdup (sinfo->source_file));
6840 g_ptr_array_free (source_file_list, TRUE);
6848 vm_commands (int command, int id, guint8 *p, guint8 *end, Buffer *buf)
6851 case CMD_VM_VERSION: {
6852 char *build_info, *version;
6854 build_info = mono_get_runtime_build_info ();
6855 version = g_strdup_printf ("mono %s", build_info);
6857 buffer_add_string (buf, version); /* vm version */
6858 buffer_add_int (buf, MAJOR_VERSION);
6859 buffer_add_int (buf, MINOR_VERSION);
6860 g_free (build_info);
6864 case CMD_VM_SET_PROTOCOL_VERSION: {
6865 major_version = decode_int (p, &p, end);
6866 minor_version = decode_int (p, &p, end);
6867 protocol_version_set = TRUE;
6868 DEBUG_PRINTF (1, "[dbg] Protocol version %d.%d, client protocol version %d.%d.\n", MAJOR_VERSION, MINOR_VERSION, major_version, minor_version);
6871 case CMD_VM_ALL_THREADS: {
6873 mono_loader_lock ();
6874 buffer_add_int (buf, mono_g_hash_table_size (tid_to_thread_obj));
6875 mono_g_hash_table_foreach (tid_to_thread_obj, add_thread, buf);
6876 mono_loader_unlock ();
6879 case CMD_VM_SUSPEND:
6881 wait_for_suspend ();
6884 if (suspend_count == 0)
6885 return ERR_NOT_SUSPENDED;
6887 clear_suspended_objs ();
6889 case CMD_VM_DISPOSE:
6890 /* Clear all event requests */
6891 mono_loader_lock ();
6892 while (event_requests->len > 0) {
6893 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, 0);
6895 clear_event_request (req->id, req->event_kind);
6897 mono_loader_unlock ();
6899 while (suspend_count > 0)
6901 disconnected = TRUE;
6902 vm_start_event_sent = FALSE;
6905 MonoInternalThread *thread;
6906 DebuggerTlsData *tls;
6907 #ifdef TRY_MANAGED_SYSTEM_ENVIRONMENT_EXIT
6908 MonoClass *env_class;
6910 MonoMethod *exit_method = NULL;
6914 exit_code = decode_int (p, &p, end);
6916 // FIXME: What if there is a VM_DEATH event request with SUSPEND_ALL ?
6918 /* Have to send a reply before exiting */
6919 send_reply_packet (id, 0, buf);
6921 /* Clear all event requests */
6922 mono_loader_lock ();
6923 while (event_requests->len > 0) {
6924 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, 0);
6926 clear_event_request (req->id, req->event_kind);
6928 mono_loader_unlock ();
6931 * The JDWP documentation says that the shutdown is not orderly. It doesn't
6932 * specify whenever a VM_DEATH event is sent. We currently do an orderly
6933 * shutdown by hijacking a thread to execute Environment.Exit (). This is
6934 * better than doing the shutdown ourselves, since it avoids various races.
6938 wait_for_suspend ();
6940 #ifdef TRY_MANAGED_SYSTEM_ENVIRONMENT_EXIT
6941 env_class = mono_class_from_name (mono_defaults.corlib, "System", "Environment");
6943 exit_method = mono_class_get_method_from_name (env_class, "Exit", 1);
6946 mono_loader_lock ();
6947 thread = (MonoInternalThread *)mono_g_hash_table_find (tid_to_thread, is_really_suspended, NULL);
6948 mono_loader_unlock ();
6950 if (thread && exit_method) {
6951 mono_loader_lock ();
6952 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
6953 mono_loader_unlock ();
6955 args = g_new0 (gpointer, 1);
6956 args [0] = g_malloc (sizeof (int));
6957 *(int*)(args [0]) = exit_code;
6959 tls->pending_invoke = g_new0 (InvokeData, 1);
6960 tls->pending_invoke->method = exit_method;
6961 tls->pending_invoke->args = args;
6962 tls->pending_invoke->nmethods = 1;
6964 while (suspend_count > 0)
6968 * No thread found, do it ourselves.
6969 * FIXME: This can race with normal shutdown etc.
6971 while (suspend_count > 0)
6974 if (!mono_runtime_try_shutdown ())
6977 mono_environment_exitcode_set (exit_code);
6979 /* Suspend all managed threads since the runtime is going away */
6980 DEBUG_PRINTF (1, "Suspending all threads...\n");
6981 mono_thread_suspend_all_other_threads ();
6982 DEBUG_PRINTF (1, "Shutting down the runtime...\n");
6983 mono_runtime_quit ();
6984 transport_close2 ();
6985 DEBUG_PRINTF (1, "Exiting...\n");
6991 case CMD_VM_INVOKE_METHOD:
6992 case CMD_VM_INVOKE_METHODS: {
6993 int objid = decode_objid (p, &p, end);
6995 DebuggerTlsData *tls;
6996 int i, count, flags, nmethods;
6999 err = get_object (objid, (MonoObject**)&thread);
7000 if (err != ERR_NONE)
7003 flags = decode_int (p, &p, end);
7005 if (command == CMD_VM_INVOKE_METHODS)
7006 nmethods = decode_int (p, &p, end);
7010 // Wait for suspending if it already started
7012 wait_for_suspend ();
7013 if (!is_suspended ())
7014 return ERR_NOT_SUSPENDED;
7016 mono_loader_lock ();
7017 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, THREAD_TO_INTERNAL (thread));
7018 mono_loader_unlock ();
7021 if (!tls->really_suspended)
7022 /* The thread is still running native code, can't do invokes */
7023 return ERR_NOT_SUSPENDED;
7026 * Store the invoke data into tls, the thread will execute it after it is
7029 if (tls->pending_invoke)
7030 return ERR_NOT_SUSPENDED;
7031 tls->pending_invoke = g_new0 (InvokeData, 1);
7032 tls->pending_invoke->id = id;
7033 tls->pending_invoke->flags = flags;
7034 tls->pending_invoke->p = (guint8 *)g_malloc (end - p);
7035 memcpy (tls->pending_invoke->p, p, end - p);
7036 tls->pending_invoke->endp = tls->pending_invoke->p + (end - p);
7037 tls->pending_invoke->suspend_count = suspend_count;
7038 tls->pending_invoke->nmethods = nmethods;
7040 if (flags & INVOKE_FLAG_SINGLE_THREADED) {
7041 resume_thread (THREAD_TO_INTERNAL (thread));
7044 count = suspend_count;
7045 for (i = 0; i < count; ++i)
7050 case CMD_VM_ABORT_INVOKE: {
7051 int objid = decode_objid (p, &p, end);
7053 DebuggerTlsData *tls;
7057 err = get_object (objid, (MonoObject**)&thread);
7058 if (err != ERR_NONE)
7061 invoke_id = decode_int (p, &p, end);
7063 mono_loader_lock ();
7064 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, THREAD_TO_INTERNAL (thread));
7067 if (tls->abort_requested) {
7068 DEBUG_PRINTF (1, "Abort already requested.\n");
7069 mono_loader_unlock ();
7074 * Check whether we're still inside the mono_runtime_invoke() and that it's
7075 * actually the correct invocation.
7077 * Careful, we do not stop the thread that's doing the invocation, so we can't
7078 * inspect its stack. However, invoke_method() also acquires the loader lock
7079 * when it's done, so we're safe here.
7083 if (!tls->invoke || (tls->invoke->id != invoke_id)) {
7084 mono_loader_unlock ();
7085 return ERR_NO_INVOCATION;
7088 tls->abort_requested = TRUE;
7090 ves_icall_System_Threading_Thread_Abort (THREAD_TO_INTERNAL (thread), NULL);
7091 mono_loader_unlock ();
7095 case CMD_VM_SET_KEEPALIVE: {
7096 int timeout = decode_int (p, &p, end);
7097 agent_config.keepalive = timeout;
7099 #ifndef DISABLE_SOCKET_TRANSPORT
7106 case CMD_VM_GET_TYPES_FOR_SOURCE_FILE: {
7107 GHashTableIter iter, kiter;
7112 char *fname, *basename;
7113 gboolean ignore_case;
7114 GSList *class_list, *l;
7115 GPtrArray *res_classes, *res_domains;
7117 fname = decode_string (p, &p, end);
7118 ignore_case = decode_byte (p, &p, end);
7120 basename = dbg_path_get_basename (fname);
7122 res_classes = g_ptr_array_new ();
7123 res_domains = g_ptr_array_new ();
7125 mono_loader_lock ();
7126 g_hash_table_iter_init (&iter, domains);
7127 while (g_hash_table_iter_next (&iter, NULL, (void**)&domain)) {
7128 AgentDomainInfo *info = (AgentDomainInfo *)domain_jit_info (domain)->agent_info;
7130 /* Update 'source_file_to_class' cache */
7131 g_hash_table_iter_init (&kiter, info->loaded_classes);
7132 while (g_hash_table_iter_next (&kiter, NULL, (void**)&klass)) {
7133 if (!g_hash_table_lookup (info->source_files, klass)) {
7134 files = get_source_files_for_type (klass);
7135 g_hash_table_insert (info->source_files, klass, files);
7137 for (i = 0; i < files->len; ++i) {
7138 char *s = (char *)g_ptr_array_index (files, i);
7139 char *s2 = dbg_path_get_basename (s);
7142 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class, s2);
7144 class_list = g_slist_prepend (class_list, klass);
7145 g_hash_table_insert (info->source_file_to_class, g_strdup (s2), class_list);
7147 class_list = g_slist_prepend (class_list, klass);
7148 g_hash_table_insert (info->source_file_to_class, s2, class_list);
7151 /* The _ignorecase hash contains the lowercase path */
7152 s3 = strdup_tolower (s2);
7153 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class_ignorecase, s3);
7155 class_list = g_slist_prepend (class_list, klass);
7156 g_hash_table_insert (info->source_file_to_class_ignorecase, g_strdup (s3), class_list);
7158 class_list = g_slist_prepend (class_list, klass);
7159 g_hash_table_insert (info->source_file_to_class_ignorecase, s3, class_list);
7171 s = strdup_tolower (basename);
7172 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class_ignorecase, s);
7175 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class, basename);
7178 for (l = class_list; l; l = l->next) {
7179 klass = (MonoClass *)l->data;
7181 g_ptr_array_add (res_classes, klass);
7182 g_ptr_array_add (res_domains, domain);
7185 mono_loader_unlock ();
7190 buffer_add_int (buf, res_classes->len);
7191 for (i = 0; i < res_classes->len; ++i)
7192 buffer_add_typeid (buf, (MonoDomain *)g_ptr_array_index (res_domains, i), (MonoClass *)g_ptr_array_index (res_classes, i));
7193 g_ptr_array_free (res_classes, TRUE);
7194 g_ptr_array_free (res_domains, TRUE);
7197 case CMD_VM_GET_TYPES: {
7198 GHashTableIter iter;
7202 gboolean ignore_case;
7203 GPtrArray *res_classes, *res_domains;
7204 MonoTypeNameParse info;
7206 name = decode_string (p, &p, end);
7207 ignore_case = decode_byte (p, &p, end);
7209 if (!mono_reflection_parse_type (name, &info)) {
7211 mono_reflection_free_type_info (&info);
7212 return ERR_INVALID_ARGUMENT;
7215 res_classes = g_ptr_array_new ();
7216 res_domains = g_ptr_array_new ();
7218 mono_loader_lock ();
7219 g_hash_table_iter_init (&iter, domains);
7220 while (g_hash_table_iter_next (&iter, NULL, (void**)&domain)) {
7222 gboolean type_resolve;
7226 mono_domain_assemblies_lock (domain);
7227 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
7228 ass = (MonoAssembly *)tmp->data;
7231 type_resolve = TRUE;
7232 t = mono_reflection_get_type (ass->image, &info, ignore_case, &type_resolve);
7234 g_ptr_array_add (res_classes, mono_type_get_class (t));
7235 g_ptr_array_add (res_domains, domain);
7239 mono_domain_assemblies_unlock (domain);
7241 mono_loader_unlock ();
7244 mono_reflection_free_type_info (&info);
7246 buffer_add_int (buf, res_classes->len);
7247 for (i = 0; i < res_classes->len; ++i)
7248 buffer_add_typeid (buf, (MonoDomain *)g_ptr_array_index (res_domains, i), (MonoClass *)g_ptr_array_index (res_classes, i));
7249 g_ptr_array_free (res_classes, TRUE);
7250 g_ptr_array_free (res_domains, TRUE);
7253 case CMD_VM_START_BUFFERING:
7254 case CMD_VM_STOP_BUFFERING:
7255 /* Handled in the main loop */
7258 return ERR_NOT_IMPLEMENTED;
7265 event_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7271 case CMD_EVENT_REQUEST_SET: {
7273 int i, event_kind, suspend_policy, nmodifiers;
7277 MonoThread *step_thread;
7278 int step_thread_id = 0;
7279 StepDepth depth = STEP_DEPTH_INTO;
7280 StepSize size = STEP_SIZE_MIN;
7281 StepFilter filter = STEP_FILTER_NONE;
7285 event_kind = decode_byte (p, &p, end);
7286 suspend_policy = decode_byte (p, &p, end);
7287 nmodifiers = decode_byte (p, &p, end);
7289 req = (EventRequest *)g_malloc0 (sizeof (EventRequest) + (nmodifiers * sizeof (Modifier)));
7290 req->id = InterlockedIncrement (&event_request_id);
7291 req->event_kind = event_kind;
7292 req->suspend_policy = suspend_policy;
7293 req->nmodifiers = nmodifiers;
7296 for (i = 0; i < nmodifiers; ++i) {
7297 mod = (ModifierKind)decode_byte (p, &p, end);
7299 req->modifiers [i].kind = mod;
7300 if (mod == MOD_KIND_COUNT) {
7301 req->modifiers [i].data.count = decode_int (p, &p, end);
7302 } else if (mod == MOD_KIND_LOCATION_ONLY) {
7303 method = decode_methodid (p, &p, end, &domain, &err);
7304 if (err != ERR_NONE)
7306 location = decode_long (p, &p, end);
7307 } else if (mod == MOD_KIND_STEP) {
7308 step_thread_id = decode_id (p, &p, end);
7309 size = (StepSize)decode_int (p, &p, end);
7310 depth = (StepDepth)decode_int (p, &p, end);
7311 if (CHECK_PROTOCOL_VERSION (2, 16))
7312 filter = (StepFilter)decode_int (p, &p, end);
7313 req->modifiers [i].data.filter = filter;
7314 if (!CHECK_PROTOCOL_VERSION (2, 26) && (req->modifiers [i].data.filter & STEP_FILTER_DEBUGGER_HIDDEN))
7315 /* Treat STEP_THOUGH the same as HIDDEN */
7316 req->modifiers [i].data.filter = (StepFilter)(req->modifiers [i].data.filter | STEP_FILTER_DEBUGGER_STEP_THROUGH);
7317 } else if (mod == MOD_KIND_THREAD_ONLY) {
7318 int id = decode_id (p, &p, end);
7320 err = get_object (id, (MonoObject**)&req->modifiers [i].data.thread);
7321 if (err != ERR_NONE) {
7325 } else if (mod == MOD_KIND_EXCEPTION_ONLY) {
7326 MonoClass *exc_class = decode_typeid (p, &p, end, &domain, &err);
7328 if (err != ERR_NONE)
7330 req->modifiers [i].caught = decode_byte (p, &p, end);
7331 req->modifiers [i].uncaught = decode_byte (p, &p, end);
7332 if (CHECK_PROTOCOL_VERSION (2, 25))
7333 req->modifiers [i].subclasses = decode_byte (p, &p, end);
7335 req->modifiers [i].subclasses = TRUE;
7336 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" : "");
7338 req->modifiers [i].data.exc_class = exc_class;
7340 if (!mono_class_is_assignable_from (mono_defaults.exception_class, exc_class)) {
7342 return ERR_INVALID_ARGUMENT;
7345 } else if (mod == MOD_KIND_ASSEMBLY_ONLY) {
7346 int n = decode_int (p, &p, end);
7349 req->modifiers [i].data.assemblies = g_new0 (MonoAssembly*, n);
7350 for (j = 0; j < n; ++j) {
7351 req->modifiers [i].data.assemblies [j] = decode_assemblyid (p, &p, end, &domain, &err);
7352 if (err != ERR_NONE) {
7353 g_free (req->modifiers [i].data.assemblies);
7357 } else if (mod == MOD_KIND_SOURCE_FILE_ONLY) {
7358 int n = decode_int (p, &p, end);
7361 modifier = &req->modifiers [i];
7362 modifier->data.source_files = g_hash_table_new (g_str_hash, g_str_equal);
7363 for (j = 0; j < n; ++j) {
7364 char *s = decode_string (p, &p, end);
7368 s2 = strdup_tolower (s);
7369 g_hash_table_insert (modifier->data.source_files, s2, s2);
7373 } else if (mod == MOD_KIND_TYPE_NAME_ONLY) {
7374 int n = decode_int (p, &p, end);
7377 modifier = &req->modifiers [i];
7378 modifier->data.type_names = g_hash_table_new (g_str_hash, g_str_equal);
7379 for (j = 0; j < n; ++j) {
7380 char *s = decode_string (p, &p, end);
7383 g_hash_table_insert (modifier->data.type_names, s, s);
7387 return ERR_NOT_IMPLEMENTED;
7391 if (req->event_kind == EVENT_KIND_BREAKPOINT) {
7394 req->info = set_breakpoint (method, location, req, &error);
7395 if (!mono_error_ok (&error)) {
7397 DEBUG_PRINTF (1, "[dbg] Failed to set breakpoint: %s\n", mono_error_get_message (&error));
7398 mono_error_cleanup (&error);
7399 return ERR_NO_SEQ_POINT_AT_IL_OFFSET;
7401 } else if (req->event_kind == EVENT_KIND_STEP) {
7402 g_assert (step_thread_id);
7404 err = get_object (step_thread_id, (MonoObject**)&step_thread);
7405 if (err != ERR_NONE) {
7410 err = ss_create (THREAD_TO_INTERNAL (step_thread), size, depth, filter, req);
7411 if (err != ERR_NONE) {
7415 } else if (req->event_kind == EVENT_KIND_METHOD_ENTRY) {
7416 req->info = set_breakpoint (NULL, METHOD_ENTRY_IL_OFFSET, req, NULL);
7417 } else if (req->event_kind == EVENT_KIND_METHOD_EXIT) {
7418 req->info = set_breakpoint (NULL, METHOD_EXIT_IL_OFFSET, req, NULL);
7419 } else if (req->event_kind == EVENT_KIND_EXCEPTION) {
7420 } else if (req->event_kind == EVENT_KIND_TYPE_LOAD) {
7422 if (req->nmodifiers) {
7424 return ERR_NOT_IMPLEMENTED;
7428 mono_loader_lock ();
7429 g_ptr_array_add (event_requests, req);
7431 if (agent_config.defer) {
7432 /* Transmit cached data to the client on receipt of the event request */
7433 switch (req->event_kind) {
7434 case EVENT_KIND_APPDOMAIN_CREATE:
7435 /* Emit load events for currently loaded domains */
7436 g_hash_table_foreach (domains, emit_appdomain_load, NULL);
7438 case EVENT_KIND_ASSEMBLY_LOAD:
7439 /* Emit load events for currently loaded assemblies */
7440 mono_assembly_foreach (emit_assembly_load, NULL);
7442 case EVENT_KIND_THREAD_START:
7443 /* Emit start events for currently started threads */
7444 mono_g_hash_table_foreach (tid_to_thread, emit_thread_start, NULL);
7446 case EVENT_KIND_TYPE_LOAD:
7447 /* Emit type load events for currently loaded types */
7448 mono_domain_foreach (send_types_for_domain, NULL);
7454 mono_loader_unlock ();
7456 buffer_add_int (buf, req->id);
7459 case CMD_EVENT_REQUEST_CLEAR: {
7460 int etype = decode_byte (p, &p, end);
7461 int req_id = decode_int (p, &p, end);
7463 // FIXME: Make a faster mapping from req_id to request
7464 mono_loader_lock ();
7465 clear_event_request (req_id, etype);
7466 mono_loader_unlock ();
7469 case CMD_EVENT_REQUEST_CLEAR_ALL_BREAKPOINTS: {
7472 mono_loader_lock ();
7474 while (i < event_requests->len) {
7475 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
7477 if (req->event_kind == EVENT_KIND_BREAKPOINT) {
7478 clear_breakpoint ((MonoBreakpoint *)req->info);
7480 g_ptr_array_remove_index_fast (event_requests, i);
7486 mono_loader_unlock ();
7490 return ERR_NOT_IMPLEMENTED;
7497 domain_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7503 case CMD_APPDOMAIN_GET_ROOT_DOMAIN: {
7504 buffer_add_domainid (buf, mono_get_root_domain ());
7507 case CMD_APPDOMAIN_GET_FRIENDLY_NAME: {
7508 domain = decode_domainid (p, &p, end, NULL, &err);
7509 if (err != ERR_NONE)
7511 buffer_add_string (buf, domain->friendly_name);
7514 case CMD_APPDOMAIN_GET_ASSEMBLIES: {
7519 domain = decode_domainid (p, &p, end, NULL, &err);
7520 if (err != ERR_NONE)
7522 mono_loader_lock ();
7524 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
7527 buffer_add_int (buf, count);
7528 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
7529 ass = (MonoAssembly *)tmp->data;
7530 buffer_add_assemblyid (buf, domain, ass);
7532 mono_loader_unlock ();
7535 case CMD_APPDOMAIN_GET_ENTRY_ASSEMBLY: {
7536 domain = decode_domainid (p, &p, end, NULL, &err);
7537 if (err != ERR_NONE)
7540 buffer_add_assemblyid (buf, domain, domain->entry_assembly);
7543 case CMD_APPDOMAIN_GET_CORLIB: {
7544 domain = decode_domainid (p, &p, end, NULL, &err);
7545 if (err != ERR_NONE)
7548 buffer_add_assemblyid (buf, domain, domain->domain->mbr.obj.vtable->klass->image->assembly);
7551 case CMD_APPDOMAIN_CREATE_STRING: {
7555 domain = decode_domainid (p, &p, end, NULL, &err);
7556 if (err != ERR_NONE)
7558 s = decode_string (p, &p, end);
7560 o = mono_string_new (domain, s);
7561 buffer_add_objid (buf, (MonoObject*)o);
7564 case CMD_APPDOMAIN_CREATE_BOXED_VALUE: {
7566 MonoDomain *domain2;
7569 domain = decode_domainid (p, &p, end, NULL, &err);
7570 if (err != ERR_NONE)
7572 klass = decode_typeid (p, &p, end, &domain2, &err);
7573 if (err != ERR_NONE)
7577 g_assert (domain == domain2);
7579 o = mono_object_new (domain, klass);
7581 err = decode_value (&klass->byval_arg, domain, (guint8 *)mono_object_unbox (o), p, &p, end);
7582 if (err != ERR_NONE)
7585 buffer_add_objid (buf, o);
7589 return ERR_NOT_IMPLEMENTED;
7596 assembly_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7602 ass = decode_assemblyid (p, &p, end, &domain, &err);
7603 if (err != ERR_NONE)
7607 case CMD_ASSEMBLY_GET_LOCATION: {
7608 buffer_add_string (buf, mono_image_get_filename (ass->image));
7611 case CMD_ASSEMBLY_GET_ENTRY_POINT: {
7615 if (ass->image->dynamic) {
7616 buffer_add_id (buf, 0);
7618 token = mono_image_get_entry_point (ass->image);
7620 buffer_add_id (buf, 0);
7622 m = mono_get_method (ass->image, token, NULL);
7623 buffer_add_methodid (buf, domain, m);
7628 case CMD_ASSEMBLY_GET_MANIFEST_MODULE: {
7629 buffer_add_moduleid (buf, domain, ass->image);
7632 case CMD_ASSEMBLY_GET_OBJECT: {
7633 MonoObject *o = (MonoObject*)mono_assembly_get_object (domain, ass);
7634 buffer_add_objid (buf, o);
7637 case CMD_ASSEMBLY_GET_TYPE: {
7638 char *s = decode_string (p, &p, end);
7639 gboolean ignorecase = decode_byte (p, &p, end);
7640 MonoTypeNameParse info;
7642 gboolean type_resolve, res;
7643 MonoDomain *d = mono_domain_get ();
7645 /* This is needed to be able to find referenced assemblies */
7646 res = mono_domain_set (domain, FALSE);
7649 if (!mono_reflection_parse_type (s, &info)) {
7652 if (info.assembly.name)
7654 t = mono_reflection_get_type (ass->image, &info, ignorecase, &type_resolve);
7656 buffer_add_typeid (buf, domain, t ? mono_class_from_mono_type (t) : NULL);
7657 mono_reflection_free_type_info (&info);
7660 mono_domain_set (d, TRUE);
7664 case CMD_ASSEMBLY_GET_NAME: {
7666 MonoAssembly *mass = ass;
7668 name = g_strdup_printf (
7669 "%s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
7671 mass->aname.major, mass->aname.minor, mass->aname.build, mass->aname.revision,
7672 mass->aname.culture && *mass->aname.culture? mass->aname.culture: "neutral",
7673 mass->aname.public_key_token [0] ? (char *)mass->aname.public_key_token : "null",
7674 (mass->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
7676 buffer_add_string (buf, name);
7681 return ERR_NOT_IMPLEMENTED;
7688 module_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7694 case CMD_MODULE_GET_INFO: {
7695 MonoImage *image = decode_moduleid (p, &p, end, &domain, &err);
7698 basename = g_path_get_basename (image->name);
7699 buffer_add_string (buf, basename); // name
7700 buffer_add_string (buf, image->module_name); // scopename
7701 buffer_add_string (buf, image->name); // fqname
7702 buffer_add_string (buf, mono_image_get_guid (image)); // guid
7703 buffer_add_assemblyid (buf, domain, image->assembly); // assembly
7708 return ERR_NOT_IMPLEMENTED;
7715 field_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7721 case CMD_FIELD_GET_INFO: {
7722 MonoClassField *f = decode_fieldid (p, &p, end, &domain, &err);
7724 buffer_add_string (buf, f->name);
7725 buffer_add_typeid (buf, domain, f->parent);
7726 buffer_add_typeid (buf, domain, mono_class_from_mono_type (f->type));
7727 buffer_add_int (buf, f->type->attrs);
7731 return ERR_NOT_IMPLEMENTED;
7738 buffer_add_cattr_arg (Buffer *buf, MonoType *t, MonoDomain *domain, MonoObject *val)
7740 if (val && val->vtable->klass == mono_defaults.monotype_class) {
7741 /* Special case these so the client doesn't have to handle Type objects */
7743 buffer_add_byte (buf, VALUE_TYPE_ID_TYPE);
7744 buffer_add_typeid (buf, domain, mono_class_from_mono_type (((MonoReflectionType*)val)->type));
7745 } else if (MONO_TYPE_IS_REFERENCE (t))
7746 buffer_add_value (buf, t, &val, domain);
7748 buffer_add_value (buf, t, mono_object_unbox (val), domain);
7752 buffer_add_cattrs (Buffer *buf, MonoDomain *domain, MonoImage *image, MonoClass *attr_klass, MonoCustomAttrInfo *cinfo)
7758 buffer_add_int (buf, 0);
7762 for (i = 0; i < cinfo->num_attrs; ++i) {
7763 if (!attr_klass || mono_class_has_parent (cinfo->attrs [i].ctor->klass, attr_klass))
7766 buffer_add_int (buf, nattrs);
7768 for (i = 0; i < cinfo->num_attrs; ++i) {
7769 MonoCustomAttrEntry *attr = &cinfo->attrs [i];
7770 if (!attr_klass || mono_class_has_parent (attr->ctor->klass, attr_klass)) {
7771 MonoArray *typed_args, *named_args;
7773 CattrNamedArg *arginfo = NULL;
7776 mono_reflection_create_custom_attr_data_args (image, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7777 if (!mono_error_ok (&error)) {
7778 DEBUG_PRINTF (2, "[dbg] mono_reflection_create_custom_attr_data_args () failed with: '%s'\n", mono_error_get_message (&error));
7779 mono_error_cleanup (&error);
7780 return ERR_LOADER_ERROR;
7783 buffer_add_methodid (buf, domain, attr->ctor);
7787 buffer_add_int (buf, mono_array_length (typed_args));
7788 for (j = 0; j < mono_array_length (typed_args); ++j) {
7789 MonoObject *val = mono_array_get (typed_args, MonoObject*, j);
7791 t = mono_method_signature (attr->ctor)->params [j];
7793 buffer_add_cattr_arg (buf, t, domain, val);
7796 buffer_add_int (buf, 0);
7801 buffer_add_int (buf, mono_array_length (named_args));
7803 for (j = 0; j < mono_array_length (named_args); ++j) {
7804 MonoObject *val = mono_array_get (named_args, MonoObject*, j);
7806 if (arginfo [j].prop) {
7807 buffer_add_byte (buf, 0x54);
7808 buffer_add_propertyid (buf, domain, arginfo [j].prop);
7809 } else if (arginfo [j].field) {
7810 buffer_add_byte (buf, 0x53);
7811 buffer_add_fieldid (buf, domain, arginfo [j].field);
7813 g_assert_not_reached ();
7816 buffer_add_cattr_arg (buf, arginfo [j].type, domain, val);
7819 buffer_add_int (buf, 0);
7828 /* FIXME: Code duplication with icall.c */
7830 collect_interfaces (MonoClass *klass, GHashTable *ifaces, MonoError *error)
7835 mono_class_setup_interfaces (klass, error);
7836 if (!mono_error_ok (error))
7839 for (i = 0; i < klass->interface_count; i++) {
7840 ic = klass->interfaces [i];
7841 g_hash_table_insert (ifaces, ic, ic);
7843 collect_interfaces (ic, ifaces, error);
7844 if (!mono_error_ok (error))
7850 type_commands_internal (int command, MonoClass *klass, MonoDomain *domain, guint8 *p, guint8 *end, Buffer *buf)
7861 case CMD_TYPE_GET_INFO: {
7862 buffer_add_string (buf, klass->name_space);
7863 buffer_add_string (buf, klass->name);
7865 name = mono_type_get_name_full (&klass->byval_arg, MONO_TYPE_NAME_FORMAT_FULL_NAME);
7866 buffer_add_string (buf, name);
7868 buffer_add_assemblyid (buf, domain, klass->image->assembly);
7869 buffer_add_moduleid (buf, domain, klass->image);
7870 buffer_add_typeid (buf, domain, klass->parent);
7871 if (klass->rank || klass->byval_arg.type == MONO_TYPE_PTR)
7872 buffer_add_typeid (buf, domain, klass->element_class);
7874 buffer_add_id (buf, 0);
7875 buffer_add_int (buf, klass->type_token);
7876 buffer_add_byte (buf, klass->rank);
7877 buffer_add_int (buf, klass->flags);
7879 type = &klass->byval_arg;
7880 // FIXME: Can't decide whenever a class represents a byref type
7883 if (type->type == MONO_TYPE_PTR)
7885 if (!type->byref && (((type->type >= MONO_TYPE_BOOLEAN) && (type->type <= MONO_TYPE_R8)) || (type->type == MONO_TYPE_I) || (type->type == MONO_TYPE_U)))
7887 if (type->type == MONO_TYPE_VALUETYPE)
7889 if (klass->enumtype)
7891 if (klass->generic_container)
7893 if (klass->generic_container || klass->generic_class)
7895 buffer_add_byte (buf, b);
7898 while ((nested = mono_class_get_nested_types (klass, &iter)))
7900 buffer_add_int (buf, nnested);
7902 while ((nested = mono_class_get_nested_types (klass, &iter)))
7903 buffer_add_typeid (buf, domain, nested);
7904 if (CHECK_PROTOCOL_VERSION (2, 12)) {
7905 if (klass->generic_container)
7906 buffer_add_typeid (buf, domain, klass);
7907 else if (klass->generic_class)
7908 buffer_add_typeid (buf, domain, klass->generic_class->container_class);
7910 buffer_add_id (buf, 0);
7912 if (CHECK_PROTOCOL_VERSION (2, 15)) {
7915 if (klass->generic_class) {
7916 MonoGenericInst *inst = klass->generic_class->context.class_inst;
7918 count = inst->type_argc;
7919 buffer_add_int (buf, count);
7920 for (i = 0; i < count; i++)
7921 buffer_add_typeid (buf, domain, mono_class_from_mono_type (inst->type_argv [i]));
7922 } else if (klass->generic_container) {
7923 MonoGenericContainer *container = klass->generic_container;
7926 count = container->type_argc;
7927 buffer_add_int (buf, count);
7928 for (i = 0; i < count; i++) {
7929 pklass = mono_class_from_generic_parameter_internal (mono_generic_container_get_param (container, i));
7930 buffer_add_typeid (buf, domain, pklass);
7933 buffer_add_int (buf, 0);
7938 case CMD_TYPE_GET_METHODS: {
7941 gpointer iter = NULL;
7944 mono_class_setup_methods (klass);
7946 nmethods = mono_class_num_methods (klass);
7948 buffer_add_int (buf, nmethods);
7950 while ((m = mono_class_get_methods (klass, &iter))) {
7951 buffer_add_methodid (buf, domain, m);
7954 g_assert (i == nmethods);
7957 case CMD_TYPE_GET_FIELDS: {
7960 gpointer iter = NULL;
7963 nfields = mono_class_num_fields (klass);
7965 buffer_add_int (buf, nfields);
7967 while ((f = mono_class_get_fields (klass, &iter))) {
7968 buffer_add_fieldid (buf, domain, f);
7969 buffer_add_string (buf, f->name);
7970 buffer_add_typeid (buf, domain, mono_class_from_mono_type (f->type));
7971 buffer_add_int (buf, f->type->attrs);
7974 g_assert (i == nfields);
7977 case CMD_TYPE_GET_PROPERTIES: {
7980 gpointer iter = NULL;
7983 nprops = mono_class_num_properties (klass);
7985 buffer_add_int (buf, nprops);
7987 while ((p = mono_class_get_properties (klass, &iter))) {
7988 buffer_add_propertyid (buf, domain, p);
7989 buffer_add_string (buf, p->name);
7990 buffer_add_methodid (buf, domain, p->get);
7991 buffer_add_methodid (buf, domain, p->set);
7992 buffer_add_int (buf, p->attrs);
7995 g_assert (i == nprops);
7998 case CMD_TYPE_GET_CATTRS: {
7999 MonoClass *attr_klass;
8000 MonoCustomAttrInfo *cinfo;
8002 attr_klass = decode_typeid (p, &p, end, NULL, &err);
8003 /* attr_klass can be NULL */
8004 if (err != ERR_NONE)
8007 cinfo = mono_custom_attrs_from_class (klass);
8009 err = buffer_add_cattrs (buf, domain, klass->image, attr_klass, cinfo);
8010 if (err != ERR_NONE)
8014 case CMD_TYPE_GET_FIELD_CATTRS: {
8015 MonoClass *attr_klass;
8016 MonoCustomAttrInfo *cinfo;
8017 MonoClassField *field;
8019 field = decode_fieldid (p, &p, end, NULL, &err);
8020 if (err != ERR_NONE)
8022 attr_klass = decode_typeid (p, &p, end, NULL, &err);
8023 if (err != ERR_NONE)
8026 cinfo = mono_custom_attrs_from_field (klass, field);
8028 err = buffer_add_cattrs (buf, domain, klass->image, attr_klass, cinfo);
8029 if (err != ERR_NONE)
8033 case CMD_TYPE_GET_PROPERTY_CATTRS: {
8034 MonoClass *attr_klass;
8035 MonoCustomAttrInfo *cinfo;
8038 prop = decode_propertyid (p, &p, end, NULL, &err);
8039 if (err != ERR_NONE)
8041 attr_klass = decode_typeid (p, &p, end, NULL, &err);
8042 if (err != ERR_NONE)
8045 cinfo = mono_custom_attrs_from_property (klass, prop);
8047 err = buffer_add_cattrs (buf, domain, klass->image, attr_klass, cinfo);
8048 if (err != ERR_NONE)
8052 case CMD_TYPE_GET_VALUES:
8053 case CMD_TYPE_GET_VALUES_2: {
8060 MonoThread *thread_obj;
8061 MonoInternalThread *thread = NULL;
8062 guint32 special_static_type;
8064 if (command == CMD_TYPE_GET_VALUES_2) {
8065 int objid = decode_objid (p, &p, end);
8068 err = get_object (objid, (MonoObject**)&thread_obj);
8069 if (err != ERR_NONE)
8072 thread = THREAD_TO_INTERNAL (thread_obj);
8075 len = decode_int (p, &p, end);
8076 for (i = 0; i < len; ++i) {
8077 f = decode_fieldid (p, &p, end, NULL, &err);
8078 if (err != ERR_NONE)
8081 if (!(f->type->attrs & FIELD_ATTRIBUTE_STATIC))
8082 return ERR_INVALID_FIELDID;
8083 special_static_type = mono_class_field_get_special_static_type (f);
8084 if (special_static_type != SPECIAL_STATIC_NONE) {
8085 if (!(thread && special_static_type == SPECIAL_STATIC_THREAD))
8086 return ERR_INVALID_FIELDID;
8089 /* Check that the field belongs to the object */
8091 for (k = klass; k; k = k->parent) {
8092 if (k == f->parent) {
8098 return ERR_INVALID_FIELDID;
8100 vtable = mono_class_vtable (domain, f->parent);
8101 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
8102 mono_field_static_get_value_for_thread (thread ? thread : mono_thread_internal_current (), vtable, f, val);
8103 buffer_add_value (buf, f->type, val, domain);
8108 case CMD_TYPE_SET_VALUES: {
8116 len = decode_int (p, &p, end);
8117 for (i = 0; i < len; ++i) {
8118 f = decode_fieldid (p, &p, end, NULL, &err);
8119 if (err != ERR_NONE)
8122 if (!(f->type->attrs & FIELD_ATTRIBUTE_STATIC))
8123 return ERR_INVALID_FIELDID;
8124 if (mono_class_field_is_special_static (f))
8125 return ERR_INVALID_FIELDID;
8127 /* Check that the field belongs to the object */
8129 for (k = klass; k; k = k->parent) {
8130 if (k == f->parent) {
8136 return ERR_INVALID_FIELDID;
8138 // FIXME: Check for literal/const
8140 vtable = mono_class_vtable (domain, f->parent);
8141 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
8142 err = decode_value (f->type, domain, val, p, &p, end);
8143 if (err != ERR_NONE) {
8147 if (MONO_TYPE_IS_REFERENCE (f->type))
8148 mono_field_static_set_value (vtable, f, *(gpointer*)val);
8150 mono_field_static_set_value (vtable, f, val);
8155 case CMD_TYPE_GET_OBJECT: {
8156 MonoObject *o = (MonoObject*)mono_type_get_object (domain, &klass->byval_arg);
8157 buffer_add_objid (buf, o);
8160 case CMD_TYPE_GET_SOURCE_FILES:
8161 case CMD_TYPE_GET_SOURCE_FILES_2: {
8162 char *source_file, *base;
8166 files = get_source_files_for_type (klass);
8168 buffer_add_int (buf, files->len);
8169 for (i = 0; i < files->len; ++i) {
8170 source_file = (char *)g_ptr_array_index (files, i);
8171 if (command == CMD_TYPE_GET_SOURCE_FILES_2) {
8172 buffer_add_string (buf, source_file);
8174 base = dbg_path_get_basename (source_file);
8175 buffer_add_string (buf, base);
8178 g_free (source_file);
8180 g_ptr_array_free (files, TRUE);
8183 case CMD_TYPE_IS_ASSIGNABLE_FROM: {
8184 MonoClass *oklass = decode_typeid (p, &p, end, NULL, &err);
8186 if (err != ERR_NONE)
8188 if (mono_class_is_assignable_from (klass, oklass))
8189 buffer_add_byte (buf, 1);
8191 buffer_add_byte (buf, 0);
8194 case CMD_TYPE_GET_METHODS_BY_NAME_FLAGS: {
8195 char *name = decode_string (p, &p, end);
8196 int i, flags = decode_int (p, &p, end);
8197 MonoException *ex = NULL;
8198 GPtrArray *array = mono_class_get_methods_by_name (klass, name, flags & ~BINDING_FLAGS_IGNORE_CASE, (flags & BINDING_FLAGS_IGNORE_CASE) != 0, TRUE, &ex);
8201 return ERR_LOADER_ERROR;
8202 buffer_add_int (buf, array->len);
8203 for (i = 0; i < array->len; ++i) {
8204 MonoMethod *method = (MonoMethod *)g_ptr_array_index (array, i);
8205 buffer_add_methodid (buf, domain, method);
8208 g_ptr_array_free (array, TRUE);
8212 case CMD_TYPE_GET_INTERFACES: {
8214 GHashTable *iface_hash = g_hash_table_new (NULL, NULL);
8216 MonoClass *tclass, *iface;
8217 GHashTableIter iter;
8221 for (parent = tclass; parent; parent = parent->parent) {
8222 mono_class_setup_interfaces (parent, &error);
8223 if (!mono_error_ok (&error))
8224 return ERR_LOADER_ERROR;
8225 collect_interfaces (parent, iface_hash, &error);
8226 if (!mono_error_ok (&error))
8227 return ERR_LOADER_ERROR;
8230 buffer_add_int (buf, g_hash_table_size (iface_hash));
8232 g_hash_table_iter_init (&iter, iface_hash);
8233 while (g_hash_table_iter_next (&iter, NULL, (void**)&iface))
8234 buffer_add_typeid (buf, domain, iface);
8235 g_hash_table_destroy (iface_hash);
8238 case CMD_TYPE_GET_INTERFACE_MAP: {
8239 int tindex, ioffset;
8240 gboolean variance_used;
8242 int len, nmethods, i;
8246 len = decode_int (p, &p, end);
8247 mono_class_setup_vtable (klass);
8249 for (tindex = 0; tindex < len; ++tindex) {
8250 iclass = decode_typeid (p, &p, end, NULL, &err);
8251 if (err != ERR_NONE)
8254 ioffset = mono_class_interface_offset_with_variance (klass, iclass, &variance_used);
8256 return ERR_INVALID_ARGUMENT;
8258 nmethods = mono_class_num_methods (iclass);
8259 buffer_add_int (buf, nmethods);
8262 while ((method = mono_class_get_methods (iclass, &iter))) {
8263 buffer_add_methodid (buf, domain, method);
8265 for (i = 0; i < nmethods; ++i)
8266 buffer_add_methodid (buf, domain, klass->vtable [i + ioffset]);
8270 case CMD_TYPE_IS_INITIALIZED: {
8271 MonoVTable *vtable = mono_class_vtable (domain, klass);
8274 buffer_add_int (buf, (vtable->initialized || vtable->init_failed) ? 1 : 0);
8276 buffer_add_int (buf, 0);
8279 case CMD_TYPE_CREATE_INSTANCE: {
8282 obj = mono_object_new (domain, klass);
8283 buffer_add_objid (buf, obj);
8287 return ERR_NOT_IMPLEMENTED;
8294 type_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8297 MonoDomain *old_domain;
8301 klass = decode_typeid (p, &p, end, &domain, &err);
8302 if (err != ERR_NONE)
8305 old_domain = mono_domain_get ();
8307 mono_domain_set (domain, TRUE);
8309 err = type_commands_internal (command, klass, domain, p, end, buf);
8311 mono_domain_set (old_domain, TRUE);
8317 method_commands_internal (int command, MonoMethod *method, MonoDomain *domain, guint8 *p, guint8 *end, Buffer *buf)
8319 MonoMethodHeader *header;
8323 case CMD_METHOD_GET_NAME: {
8324 buffer_add_string (buf, method->name);
8327 case CMD_METHOD_GET_DECLARING_TYPE: {
8328 buffer_add_typeid (buf, domain, method->klass);
8331 case CMD_METHOD_GET_DEBUG_INFO: {
8332 MonoDebugMethodInfo *minfo;
8334 int i, j, n_il_offsets;
8336 GPtrArray *source_file_list;
8337 MonoSymSeqPoint *sym_seq_points;
8339 header = mono_method_get_header (method);
8341 buffer_add_int (buf, 0);
8342 buffer_add_string (buf, "");
8343 buffer_add_int (buf, 0);
8347 minfo = mono_debug_lookup_method (method);
8349 buffer_add_int (buf, header->code_size);
8350 buffer_add_string (buf, "");
8351 buffer_add_int (buf, 0);
8352 mono_metadata_free_mh (header);
8356 mono_debug_get_seq_points (minfo, &source_file, &source_file_list, &source_files, &sym_seq_points, &n_il_offsets);
8357 buffer_add_int (buf, header->code_size);
8358 if (CHECK_PROTOCOL_VERSION (2, 13)) {
8359 buffer_add_int (buf, source_file_list->len);
8360 for (i = 0; i < source_file_list->len; ++i) {
8361 MonoDebugSourceInfo *sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, i);
8362 buffer_add_string (buf, sinfo->source_file);
8363 if (CHECK_PROTOCOL_VERSION (2, 14)) {
8364 for (j = 0; j < 16; ++j)
8365 buffer_add_byte (buf, sinfo->hash [j]);
8369 buffer_add_string (buf, source_file);
8371 buffer_add_int (buf, n_il_offsets);
8372 DEBUG_PRINTF (10, "Line number table for method %s:\n", mono_method_full_name (method, TRUE));
8373 for (i = 0; i < n_il_offsets; ++i) {
8374 MonoSymSeqPoint *sp = &sym_seq_points [i];
8375 const char *srcfile = "";
8377 if (source_files [i] != -1) {
8378 MonoDebugSourceInfo *sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, source_files [i]);
8379 srcfile = sinfo->source_file;
8381 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);
8382 buffer_add_int (buf, sp->il_offset);
8383 buffer_add_int (buf, sp->line);
8384 if (CHECK_PROTOCOL_VERSION (2, 13))
8385 buffer_add_int (buf, source_files [i]);
8386 if (CHECK_PROTOCOL_VERSION (2, 19))
8387 buffer_add_int (buf, sp->column);
8388 if (CHECK_PROTOCOL_VERSION (2, 32)) {
8389 buffer_add_int (buf, sp->end_line);
8390 buffer_add_int (buf, sp->end_column);
8393 g_free (source_file);
8394 g_free (source_files);
8395 g_free (sym_seq_points);
8396 g_ptr_array_free (source_file_list, TRUE);
8397 mono_metadata_free_mh (header);
8400 case CMD_METHOD_GET_PARAM_INFO: {
8401 MonoMethodSignature *sig = mono_method_signature (method);
8405 /* FIXME: mono_class_from_mono_type () and byrefs */
8407 /* FIXME: Use a smaller encoding */
8408 buffer_add_int (buf, sig->call_convention);
8409 buffer_add_int (buf, sig->param_count);
8410 buffer_add_int (buf, sig->generic_param_count);
8411 buffer_add_typeid (buf, domain, mono_class_from_mono_type (sig->ret));
8412 for (i = 0; i < sig->param_count; ++i) {
8414 buffer_add_typeid (buf, domain, mono_class_from_mono_type (sig->params [i]));
8417 /* Emit parameter names */
8418 names = g_new (char *, sig->param_count);
8419 mono_method_get_param_names (method, (const char **) names);
8420 for (i = 0; i < sig->param_count; ++i)
8421 buffer_add_string (buf, names [i]);
8426 case CMD_METHOD_GET_LOCALS_INFO: {
8428 MonoDebugLocalsInfo *locals;
8429 int *locals_map = NULL;
8431 header = mono_method_get_header (method);
8433 return ERR_INVALID_ARGUMENT;
8435 locals = mono_debug_lookup_locals (method);
8437 buffer_add_int (buf, header->num_locals);
8439 for (i = 0; i < header->num_locals; ++i) {
8440 buffer_add_typeid (buf, domain, mono_class_from_mono_type (header->locals [i]));
8443 for (i = 0; i < header->num_locals; ++i) {
8445 sprintf (lname, "V_%d", i);
8446 buffer_add_string (buf, lname);
8449 for (i = 0; i < header->num_locals; ++i) {
8450 buffer_add_int (buf, 0);
8451 buffer_add_int (buf, header->code_size);
8454 num_locals = locals->num_locals;
8455 buffer_add_int (buf, num_locals);
8458 for (i = 0; i < num_locals; ++i) {
8459 g_assert (locals->locals [i].index < header->num_locals);
8460 buffer_add_typeid (buf, domain, mono_class_from_mono_type (header->locals [locals->locals [i].index]));
8463 for (i = 0; i < num_locals; ++i)
8464 buffer_add_string (buf, locals->locals [i].name);
8466 for (i = 0; i < num_locals; ++i) {
8467 if (locals->locals [i].block) {
8468 buffer_add_int (buf, locals->locals [i].block->start_offset);
8469 buffer_add_int (buf, locals->locals [i].block->end_offset);
8471 buffer_add_int (buf, 0);
8472 buffer_add_int (buf, header->code_size);
8476 mono_metadata_free_mh (header);
8479 mono_debug_free_locals (locals);
8480 g_free (locals_map);
8484 case CMD_METHOD_GET_INFO:
8485 buffer_add_int (buf, method->flags);
8486 buffer_add_int (buf, method->iflags);
8487 buffer_add_int (buf, method->token);
8488 if (CHECK_PROTOCOL_VERSION (2, 12)) {
8490 if (method->is_generic)
8492 if (mono_method_signature (method)->generic_param_count)
8494 buffer_add_byte (buf, attrs);
8495 if (method->is_generic || method->is_inflated) {
8498 if (method->is_generic) {
8501 MonoMethodInflated *imethod = (MonoMethodInflated *)method;
8503 result = imethod->declaring;
8504 if (imethod->context.class_inst) {
8505 MonoClass *klass = ((MonoMethod *) imethod)->klass;
8506 /*Generic methods gets the context of the GTD.*/
8507 if (mono_class_get_context (klass)) {
8509 result = mono_class_inflate_generic_method_full_checked (result, klass, mono_class_get_context (klass), &error);
8510 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8515 buffer_add_methodid (buf, domain, result);
8517 buffer_add_id (buf, 0);
8519 if (CHECK_PROTOCOL_VERSION (2, 15)) {
8520 if (mono_method_signature (method)->generic_param_count) {
8523 if (method->is_inflated) {
8524 MonoGenericInst *inst = mono_method_get_context (method)->method_inst;
8526 count = inst->type_argc;
8527 buffer_add_int (buf, count);
8529 for (i = 0; i < count; i++)
8530 buffer_add_typeid (buf, domain, mono_class_from_mono_type (inst->type_argv [i]));
8532 buffer_add_int (buf, 0);
8534 } else if (method->is_generic) {
8535 MonoGenericContainer *container = mono_method_get_generic_container (method);
8537 count = mono_method_signature (method)->generic_param_count;
8538 buffer_add_int (buf, count);
8539 for (i = 0; i < count; i++) {
8540 MonoGenericParam *param = mono_generic_container_get_param (container, i);
8541 MonoClass *pklass = mono_class_from_generic_parameter_internal (param);
8542 buffer_add_typeid (buf, domain, pklass);
8545 buffer_add_int (buf, 0);
8548 buffer_add_int (buf, 0);
8553 case CMD_METHOD_GET_BODY: {
8556 header = mono_method_get_header (method);
8558 buffer_add_int (buf, 0);
8560 if (CHECK_PROTOCOL_VERSION (2, 18))
8561 buffer_add_int (buf, 0);
8563 buffer_add_int (buf, header->code_size);
8564 for (i = 0; i < header->code_size; ++i)
8565 buffer_add_byte (buf, header->code [i]);
8567 if (CHECK_PROTOCOL_VERSION (2, 18)) {
8568 buffer_add_int (buf, header->num_clauses);
8569 for (i = 0; i < header->num_clauses; ++i) {
8570 MonoExceptionClause *clause = &header->clauses [i];
8572 buffer_add_int (buf, clause->flags);
8573 buffer_add_int (buf, clause->try_offset);
8574 buffer_add_int (buf, clause->try_len);
8575 buffer_add_int (buf, clause->handler_offset);
8576 buffer_add_int (buf, clause->handler_len);
8577 if (clause->flags == MONO_EXCEPTION_CLAUSE_NONE)
8578 buffer_add_typeid (buf, domain, clause->data.catch_class);
8579 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FILTER)
8580 buffer_add_int (buf, clause->data.filter_offset);
8584 mono_metadata_free_mh (header);
8589 case CMD_METHOD_RESOLVE_TOKEN: {
8590 guint32 token = decode_int (p, &p, end);
8593 switch (mono_metadata_token_code (token)) {
8594 case MONO_TOKEN_STRING: {
8598 s = mono_ldstr (domain, method->klass->image, mono_metadata_token_index (token));
8601 s2 = mono_string_to_utf8 (s);
8603 buffer_add_byte (buf, TOKEN_TYPE_STRING);
8604 buffer_add_string (buf, s2);
8610 MonoClass *handle_class;
8612 if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) {
8613 val = mono_method_get_wrapper_data (method, token);
8614 handle_class = (MonoClass *)mono_method_get_wrapper_data (method, token + 1);
8616 if (handle_class == NULL) {
8617 // Can't figure out the token type
8618 buffer_add_byte (buf, TOKEN_TYPE_UNKNOWN);
8623 val = mono_ldtoken_checked (method->klass->image, token, &handle_class, NULL, &error);
8625 g_error ("Could not load token due to %s", mono_error_get_message (&error));
8628 if (handle_class == mono_defaults.typehandle_class) {
8629 buffer_add_byte (buf, TOKEN_TYPE_TYPE);
8630 if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
8631 buffer_add_typeid (buf, domain, (MonoClass *) val);
8633 buffer_add_typeid (buf, domain, mono_class_from_mono_type ((MonoType*)val));
8634 } else if (handle_class == mono_defaults.fieldhandle_class) {
8635 buffer_add_byte (buf, TOKEN_TYPE_FIELD);
8636 buffer_add_fieldid (buf, domain, (MonoClassField *)val);
8637 } else if (handle_class == mono_defaults.methodhandle_class) {
8638 buffer_add_byte (buf, TOKEN_TYPE_METHOD);
8639 buffer_add_methodid (buf, domain, (MonoMethod *)val);
8640 } else if (handle_class == mono_defaults.string_class) {
8643 s = mono_string_to_utf8 ((MonoString *)val);
8644 buffer_add_byte (buf, TOKEN_TYPE_STRING);
8645 buffer_add_string (buf, s);
8648 g_assert_not_reached ();
8655 case CMD_METHOD_GET_CATTRS: {
8656 MonoClass *attr_klass;
8657 MonoCustomAttrInfo *cinfo;
8659 attr_klass = decode_typeid (p, &p, end, NULL, &err);
8660 /* attr_klass can be NULL */
8661 if (err != ERR_NONE)
8664 cinfo = mono_custom_attrs_from_method (method);
8666 err = buffer_add_cattrs (buf, domain, method->klass->image, attr_klass, cinfo);
8667 if (err != ERR_NONE)
8671 case CMD_METHOD_MAKE_GENERIC_METHOD: {
8673 MonoType **type_argv;
8677 MonoGenericInst *ginst;
8678 MonoGenericContext tmp_context;
8679 MonoMethod *inflated;
8681 type_argc = decode_int (p, &p, end);
8682 type_argv = g_new0 (MonoType*, type_argc);
8683 for (i = 0; i < type_argc; ++i) {
8684 klass = decode_typeid (p, &p, end, &d, &err);
8685 if (err != ERR_NONE) {
8691 return ERR_INVALID_ARGUMENT;
8693 type_argv [i] = &klass->byval_arg;
8695 ginst = mono_metadata_get_generic_inst (type_argc, type_argv);
8697 tmp_context.class_inst = method->klass->generic_class ? method->klass->generic_class->context.class_inst : NULL;
8698 tmp_context.method_inst = ginst;
8700 inflated = mono_class_inflate_generic_method_checked (method, &tmp_context, &error);
8701 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8702 if (!mono_verifier_is_method_valid_generic_instantiation (inflated))
8703 return ERR_INVALID_ARGUMENT;
8704 buffer_add_methodid (buf, domain, inflated);
8708 return ERR_NOT_IMPLEMENTED;
8715 method_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8718 MonoDomain *old_domain;
8722 method = decode_methodid (p, &p, end, &domain, &err);
8723 if (err != ERR_NONE)
8726 old_domain = mono_domain_get ();
8728 mono_domain_set (domain, TRUE);
8730 err = method_commands_internal (command, method, domain, p, end, buf);
8732 mono_domain_set (old_domain, TRUE);
8738 thread_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8740 int objid = decode_objid (p, &p, end);
8742 MonoThread *thread_obj;
8743 MonoInternalThread *thread;
8745 err = get_object (objid, (MonoObject**)&thread_obj);
8746 if (err != ERR_NONE)
8749 thread = THREAD_TO_INTERNAL (thread_obj);
8752 case CMD_THREAD_GET_NAME: {
8754 gunichar2 *s = mono_thread_get_name (thread, &name_len);
8757 buffer_add_int (buf, 0);
8762 name = g_utf16_to_utf8 (s, name_len, NULL, &len, NULL);
8764 buffer_add_int (buf, len);
8765 buffer_add_data (buf, (guint8*)name, len);
8770 case CMD_THREAD_GET_FRAME_INFO: {
8771 DebuggerTlsData *tls;
8772 int i, start_frame, length;
8774 // Wait for suspending if it already started
8775 // FIXME: Races with suspend_count
8776 while (!is_suspended ()) {
8778 wait_for_suspend ();
8782 wait_for_suspend ();
8783 if (!is_suspended ())
8784 return ERR_NOT_SUSPENDED;
8787 start_frame = decode_int (p, &p, end);
8788 length = decode_int (p, &p, end);
8790 if (start_frame != 0 || length != -1)
8791 return ERR_NOT_IMPLEMENTED;
8793 mono_loader_lock ();
8794 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
8795 mono_loader_unlock ();
8798 compute_frame_info (thread, tls);
8800 buffer_add_int (buf, tls->frame_count);
8801 for (i = 0; i < tls->frame_count; ++i) {
8802 buffer_add_int (buf, tls->frames [i]->id);
8803 buffer_add_methodid (buf, tls->frames [i]->domain, tls->frames [i]->actual_method);
8804 buffer_add_int (buf, tls->frames [i]->il_offset);
8806 * Instead of passing the frame type directly to the client, we associate
8807 * it with the previous frame using a set of flags. This avoids lots of
8808 * conditional code in the client, since a frame whose type isn't
8809 * FRAME_TYPE_MANAGED has no method, location, etc.
8811 buffer_add_byte (buf, tls->frames [i]->flags);
8816 case CMD_THREAD_GET_STATE:
8817 buffer_add_int (buf, thread->state);
8819 case CMD_THREAD_GET_INFO:
8820 buffer_add_byte (buf, thread->threadpool_thread);
8822 case CMD_THREAD_GET_ID:
8823 buffer_add_long (buf, (guint64)(gsize)thread);
8825 case CMD_THREAD_GET_TID:
8826 buffer_add_long (buf, (guint64)thread->tid);
8828 case CMD_THREAD_SET_IP: {
8829 DebuggerTlsData *tls;
8832 MonoSeqPointInfo *seq_points;
8837 method = decode_methodid (p, &p, end, &domain, &err);
8838 if (err != ERR_NONE)
8840 il_offset = decode_long (p, &p, end);
8842 while (!is_suspended ()) {
8844 wait_for_suspend ();
8847 mono_loader_lock ();
8848 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
8849 mono_loader_unlock ();
8852 compute_frame_info (thread, tls);
8853 if (tls->frame_count == 0 || tls->frames [0]->actual_method != method)
8854 return ERR_INVALID_ARGUMENT;
8856 found_sp = mono_find_seq_point (domain, method, il_offset, &seq_points, &sp);
8858 g_assert (seq_points);
8861 return ERR_INVALID_ARGUMENT;
8863 // FIXME: Check that the ip change is safe
8865 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);
8866 MONO_CONTEXT_SET_IP (&tls->restore_state.ctx, (guint8*)tls->frames [0]->ji->code_start + sp.native_offset);
8870 return ERR_NOT_IMPLEMENTED;
8877 frame_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8881 MonoThread *thread_obj;
8882 MonoInternalThread *thread;
8883 int pos, i, len, frame_idx;
8884 DebuggerTlsData *tls;
8886 MonoDebugMethodJitInfo *jit;
8887 MonoMethodSignature *sig;
8889 MonoMethodHeader *header;
8891 objid = decode_objid (p, &p, end);
8892 err = get_object (objid, (MonoObject**)&thread_obj);
8893 if (err != ERR_NONE)
8896 thread = THREAD_TO_INTERNAL (thread_obj);
8898 id = decode_id (p, &p, end);
8900 mono_loader_lock ();
8901 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
8902 mono_loader_unlock ();
8905 for (i = 0; i < tls->frame_count; ++i) {
8906 if (tls->frames [i]->id == id)
8909 if (i == tls->frame_count)
8910 return ERR_INVALID_FRAMEID;
8913 frame = tls->frames [frame_idx];
8915 /* This is supported for frames without has_ctx etc. set */
8916 if (command == CMD_STACK_FRAME_GET_DOMAIN) {
8917 if (CHECK_PROTOCOL_VERSION (2, 38))
8918 buffer_add_domainid (buf, frame->domain);
8922 if (!frame->has_ctx)
8923 return ERR_ABSENT_INFORMATION;
8926 frame->jit = mono_debug_find_method (frame->api_method, frame->domain);
8927 if (!frame->jit && frame->api_method->is_inflated)
8928 frame->jit = mono_debug_find_method (mono_method_get_declaring_generic_method (frame->api_method), frame->domain);
8932 /* This could happen for aot images with no jit debug info */
8933 s = mono_method_full_name (frame->api_method, TRUE);
8934 DEBUG_PRINTF (1, "[dbg] No debug information found for '%s'.\n", s);
8936 return ERR_ABSENT_INFORMATION;
8941 sig = mono_method_signature (frame->actual_method);
8943 if (!mono_get_seq_points (frame->domain, frame->actual_method))
8945 * The method is probably from an aot image compiled without soft-debug, variables might be dead, etc.
8947 return ERR_ABSENT_INFORMATION;
8950 case CMD_STACK_FRAME_GET_VALUES: {
8951 len = decode_int (p, &p, end);
8952 header = mono_method_get_header (frame->actual_method);
8954 for (i = 0; i < len; ++i) {
8955 pos = decode_int (p, &p, end);
8960 DEBUG_PRINTF (4, "[dbg] send arg %d.\n", pos);
8962 g_assert (pos >= 0 && pos < jit->num_params);
8964 add_var (buf, jit, sig->params [pos], &jit->params [pos], &frame->ctx, frame->domain, FALSE);
8966 MonoDebugLocalsInfo *locals;
8968 locals = mono_debug_lookup_locals (frame->method);
8970 g_assert (pos < locals->num_locals);
8971 pos = locals->locals [pos].index;
8972 mono_debug_free_locals (locals);
8974 g_assert (pos >= 0 && pos < jit->num_locals);
8976 DEBUG_PRINTF (4, "[dbg] send local %d.\n", pos);
8978 add_var (buf, jit, header->locals [pos], &jit->locals [pos], &frame->ctx, frame->domain, FALSE);
8981 mono_metadata_free_mh (header);
8984 case CMD_STACK_FRAME_GET_THIS: {
8985 if (frame->api_method->klass->valuetype) {
8986 if (!sig->hasthis) {
8987 MonoObject *p = NULL;
8988 buffer_add_value (buf, &mono_defaults.object_class->byval_arg, &p, frame->domain);
8990 add_var (buf, jit, &frame->actual_method->klass->this_arg, jit->this_var, &frame->ctx, frame->domain, TRUE);
8993 if (!sig->hasthis) {
8994 MonoObject *p = NULL;
8995 buffer_add_value (buf, &frame->actual_method->klass->byval_arg, &p, frame->domain);
8997 add_var (buf, jit, &frame->api_method->klass->byval_arg, jit->this_var, &frame->ctx, frame->domain, TRUE);
9002 case CMD_STACK_FRAME_SET_VALUES: {
9005 MonoDebugVarInfo *var;
9007 len = decode_int (p, &p, end);
9008 header = mono_method_get_header (frame->actual_method);
9010 for (i = 0; i < len; ++i) {
9011 pos = decode_int (p, &p, end);
9016 g_assert (pos >= 0 && pos < jit->num_params);
9018 t = sig->params [pos];
9019 var = &jit->params [pos];
9021 MonoDebugLocalsInfo *locals;
9023 locals = mono_debug_lookup_locals (frame->method);
9025 g_assert (pos < locals->num_locals);
9026 pos = locals->locals [pos].index;
9027 mono_debug_free_locals (locals);
9029 g_assert (pos >= 0 && pos < jit->num_locals);
9031 t = header->locals [pos];
9032 var = &jit->locals [pos];
9035 if (MONO_TYPE_IS_REFERENCE (t))
9036 val_buf = (guint8 *)g_alloca (sizeof (MonoObject*));
9038 val_buf = (guint8 *)g_alloca (mono_class_instance_size (mono_class_from_mono_type (t)));
9039 err = decode_value (t, frame->domain, val_buf, p, &p, end);
9040 if (err != ERR_NONE)
9043 set_var (t, var, &frame->ctx, frame->domain, val_buf, frame->reg_locations, &tls->restore_state.ctx);
9045 mono_metadata_free_mh (header);
9048 case CMD_STACK_FRAME_GET_DOMAIN: {
9049 if (CHECK_PROTOCOL_VERSION (2, 38))
9050 buffer_add_domainid (buf, frame->domain);
9054 return ERR_NOT_IMPLEMENTED;
9061 array_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9064 int objid, index, len, i, esize;
9068 objid = decode_objid (p, &p, end);
9069 err = get_object (objid, (MonoObject**)&arr);
9070 if (err != ERR_NONE)
9074 case CMD_ARRAY_REF_GET_LENGTH:
9075 buffer_add_int (buf, arr->obj.vtable->klass->rank);
9077 buffer_add_int (buf, arr->max_length);
9078 buffer_add_int (buf, 0);
9080 for (i = 0; i < arr->obj.vtable->klass->rank; ++i) {
9081 buffer_add_int (buf, arr->bounds [i].length);
9082 buffer_add_int (buf, arr->bounds [i].lower_bound);
9086 case CMD_ARRAY_REF_GET_VALUES:
9087 index = decode_int (p, &p, end);
9088 len = decode_int (p, &p, end);
9090 g_assert (index >= 0 && len >= 0);
9091 // Reordered to avoid integer overflow
9092 g_assert (!(index > arr->max_length - len));
9094 esize = mono_array_element_size (arr->obj.vtable->klass);
9095 for (i = index; i < index + len; ++i) {
9096 elem = (gpointer*)((char*)arr->vector + (i * esize));
9097 buffer_add_value (buf, &arr->obj.vtable->klass->element_class->byval_arg, elem, arr->obj.vtable->domain);
9100 case CMD_ARRAY_REF_SET_VALUES:
9101 index = decode_int (p, &p, end);
9102 len = decode_int (p, &p, end);
9104 g_assert (index >= 0 && len >= 0);
9105 // Reordered to avoid integer overflow
9106 g_assert (!(index > arr->max_length - len));
9108 esize = mono_array_element_size (arr->obj.vtable->klass);
9109 for (i = index; i < index + len; ++i) {
9110 elem = (gpointer*)((char*)arr->vector + (i * esize));
9112 decode_value (&arr->obj.vtable->klass->element_class->byval_arg, arr->obj.vtable->domain, (guint8 *)elem, p, &p, end);
9116 return ERR_NOT_IMPLEMENTED;
9123 string_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9129 int i, index, length;
9131 gboolean use_utf16 = FALSE;
9133 objid = decode_objid (p, &p, end);
9134 err = get_object (objid, (MonoObject**)&str);
9135 if (err != ERR_NONE)
9139 case CMD_STRING_REF_GET_VALUE:
9140 if (CHECK_PROTOCOL_VERSION (2, 41)) {
9141 for (i = 0; i < mono_string_length (str); ++i)
9142 if (mono_string_chars (str)[i] == 0)
9144 buffer_add_byte (buf, use_utf16 ? 1 : 0);
9147 buffer_add_int (buf, mono_string_length (str) * 2);
9148 buffer_add_data (buf, (guint8*)mono_string_chars (str), mono_string_length (str) * 2);
9150 s = mono_string_to_utf8 (str);
9151 buffer_add_string (buf, s);
9155 case CMD_STRING_REF_GET_LENGTH:
9156 buffer_add_long (buf, mono_string_length (str));
9158 case CMD_STRING_REF_GET_CHARS:
9159 index = decode_long (p, &p, end);
9160 length = decode_long (p, &p, end);
9161 if (index > mono_string_length (str) - length)
9162 return ERR_INVALID_ARGUMENT;
9163 c = mono_string_chars (str) + index;
9164 for (i = 0; i < length; ++i)
9165 buffer_add_short (buf, c [i]);
9168 return ERR_NOT_IMPLEMENTED;
9175 object_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9185 if (command == CMD_OBJECT_REF_IS_COLLECTED) {
9186 objid = decode_objid (p, &p, end);
9187 err = get_object (objid, &obj);
9188 if (err != ERR_NONE)
9189 buffer_add_int (buf, 1);
9191 buffer_add_int (buf, 0);
9195 objid = decode_objid (p, &p, end);
9196 err = get_object (objid, &obj);
9197 if (err != ERR_NONE)
9200 MonoClass *obj_type;
9202 obj_type = obj->vtable->klass;
9203 if (mono_class_is_transparent_proxy (obj_type))
9204 obj_type = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
9206 g_assert (obj_type);
9209 case CMD_OBJECT_REF_GET_TYPE:
9210 /* This handles transparent proxies too */
9211 buffer_add_typeid (buf, obj->vtable->domain, mono_class_from_mono_type (((MonoReflectionType*)obj->vtable->type)->type));
9213 case CMD_OBJECT_REF_GET_VALUES:
9214 len = decode_int (p, &p, end);
9216 for (i = 0; i < len; ++i) {
9217 MonoClassField *f = decode_fieldid (p, &p, end, NULL, &err);
9218 if (err != ERR_NONE)
9221 /* Check that the field belongs to the object */
9223 for (k = obj_type; k; k = k->parent) {
9224 if (k == f->parent) {
9230 return ERR_INVALID_FIELDID;
9232 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC) {
9236 if (mono_class_field_is_special_static (f))
9237 return ERR_INVALID_FIELDID;
9239 g_assert (f->type->attrs & FIELD_ATTRIBUTE_STATIC);
9240 vtable = mono_class_vtable (obj->vtable->domain, f->parent);
9241 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
9242 mono_field_static_get_value (vtable, f, val);
9243 buffer_add_value (buf, f->type, val, obj->vtable->domain);
9246 buffer_add_value (buf, f->type, (guint8*)obj + f->offset, obj->vtable->domain);
9250 case CMD_OBJECT_REF_SET_VALUES:
9251 len = decode_int (p, &p, end);
9253 for (i = 0; i < len; ++i) {
9254 f = decode_fieldid (p, &p, end, NULL, &err);
9255 if (err != ERR_NONE)
9258 /* Check that the field belongs to the object */
9260 for (k = obj_type; k; k = k->parent) {
9261 if (k == f->parent) {
9267 return ERR_INVALID_FIELDID;
9269 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC) {
9273 if (mono_class_field_is_special_static (f))
9274 return ERR_INVALID_FIELDID;
9276 g_assert (f->type->attrs & FIELD_ATTRIBUTE_STATIC);
9277 vtable = mono_class_vtable (obj->vtable->domain, f->parent);
9279 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
9280 err = decode_value (f->type, obj->vtable->domain, val, p, &p, end);
9281 if (err != ERR_NONE) {
9285 mono_field_static_set_value (vtable, f, val);
9288 err = decode_value (f->type, obj->vtable->domain, (guint8*)obj + f->offset, p, &p, end);
9289 if (err != ERR_NONE)
9294 case CMD_OBJECT_REF_GET_ADDRESS:
9295 buffer_add_long (buf, (gssize)obj);
9297 case CMD_OBJECT_REF_GET_DOMAIN:
9298 buffer_add_domainid (buf, obj->vtable->domain);
9300 case CMD_OBJECT_REF_GET_INFO:
9301 buffer_add_typeid (buf, obj->vtable->domain, mono_class_from_mono_type (((MonoReflectionType*)obj->vtable->type)->type));
9302 buffer_add_domainid (buf, obj->vtable->domain);
9305 return ERR_NOT_IMPLEMENTED;
9312 command_set_to_string (CommandSet command_set)
9314 switch (command_set) {
9317 case CMD_SET_OBJECT_REF:
9318 return "OBJECT_REF";
9319 case CMD_SET_STRING_REF:
9320 return "STRING_REF";
9321 case CMD_SET_THREAD:
9323 case CMD_SET_ARRAY_REF:
9325 case CMD_SET_EVENT_REQUEST:
9326 return "EVENT_REQUEST";
9327 case CMD_SET_STACK_FRAME:
9328 return "STACK_FRAME";
9329 case CMD_SET_APPDOMAIN:
9331 case CMD_SET_ASSEMBLY:
9333 case CMD_SET_METHOD:
9337 case CMD_SET_MODULE:
9348 static const char* vm_cmds_str [] = {
9356 "SET_PROTOCOL_VERSION",
9359 "GET_TYPES_FOR_SOURCE_FILE",
9364 static const char* thread_cmds_str[] = {
9374 static const char* event_cmds_str[] = {
9377 "REQUEST_CLEAR_ALL_BREAKPOINTS"
9380 static const char* appdomain_cmds_str[] = {
9382 "GET_FRIENDLY_NAME",
9384 "GET_ENTRY_ASSEMBLY",
9387 "CREATE_BOXED_VALUE"
9390 static const char* assembly_cmds_str[] = {
9393 "GET_MANIFEST_MODULE",
9399 static const char* module_cmds_str[] = {
9403 static const char* field_cmds_str[] = {
9407 static const char* method_cmds_str[] = {
9409 "GET_DECLARING_TYPE",
9417 "MAKE_GENERIC_METHOD"
9420 static const char* type_cmds_str[] = {
9428 "IS_ASSIGNABLE_FROM",
9432 "GET_PROPERTY_CATTRS",
9433 "GET_SOURCE_FILES_2",
9435 "GET_METHODS_BY_NAME_FLAGS",
9437 "GET_INTERFACE_MAP",
9441 static const char* stack_frame_cmds_str[] = {
9448 static const char* array_cmds_str[] = {
9454 static const char* string_cmds_str[] = {
9460 static const char* object_cmds_str[] = {
9471 cmd_to_string (CommandSet set, int command)
9479 cmds_len = G_N_ELEMENTS (vm_cmds_str);
9481 case CMD_SET_OBJECT_REF:
9482 cmds = object_cmds_str;
9483 cmds_len = G_N_ELEMENTS (object_cmds_str);
9485 case CMD_SET_STRING_REF:
9486 cmds = string_cmds_str;
9487 cmds_len = G_N_ELEMENTS (string_cmds_str);
9489 case CMD_SET_THREAD:
9490 cmds = thread_cmds_str;
9491 cmds_len = G_N_ELEMENTS (thread_cmds_str);
9493 case CMD_SET_ARRAY_REF:
9494 cmds = array_cmds_str;
9495 cmds_len = G_N_ELEMENTS (array_cmds_str);
9497 case CMD_SET_EVENT_REQUEST:
9498 cmds = event_cmds_str;
9499 cmds_len = G_N_ELEMENTS (event_cmds_str);
9501 case CMD_SET_STACK_FRAME:
9502 cmds = stack_frame_cmds_str;
9503 cmds_len = G_N_ELEMENTS (stack_frame_cmds_str);
9505 case CMD_SET_APPDOMAIN:
9506 cmds = appdomain_cmds_str;
9507 cmds_len = G_N_ELEMENTS (appdomain_cmds_str);
9509 case CMD_SET_ASSEMBLY:
9510 cmds = assembly_cmds_str;
9511 cmds_len = G_N_ELEMENTS (assembly_cmds_str);
9513 case CMD_SET_METHOD:
9514 cmds = method_cmds_str;
9515 cmds_len = G_N_ELEMENTS (method_cmds_str);
9518 cmds = type_cmds_str;
9519 cmds_len = G_N_ELEMENTS (type_cmds_str);
9521 case CMD_SET_MODULE:
9522 cmds = module_cmds_str;
9523 cmds_len = G_N_ELEMENTS (module_cmds_str);
9526 cmds = field_cmds_str;
9527 cmds_len = G_N_ELEMENTS (field_cmds_str);
9530 cmds = event_cmds_str;
9531 cmds_len = G_N_ELEMENTS (event_cmds_str);
9536 if (command > 0 && command <= cmds_len)
9537 return cmds [command - 1];
9543 wait_for_attach (void)
9545 #ifndef DISABLE_SOCKET_TRANSPORT
9546 if (listen_fd == -1) {
9547 DEBUG_PRINTF (1, "[dbg] Invalid listening socket\n");
9551 /* Block and wait for client connection */
9552 MONO_PREPARE_BLOCKING;
9553 conn_fd = socket_transport_accept (listen_fd);
9554 MONO_FINISH_BLOCKING;
9556 DEBUG_PRINTF (1, "Accepted connection on %d\n", conn_fd);
9557 if (conn_fd == -1) {
9558 DEBUG_PRINTF (1, "[dbg] Bad client connection\n");
9562 g_assert_not_reached ();
9566 disconnected = !transport_handshake ();
9568 DEBUG_PRINTF (1, "Transport handshake failed!\n");
9578 * This thread handles communication with the debugger client using a JDWP
9581 static guint32 WINAPI
9582 debugger_thread (void *arg)
9584 int res, len, id, flags, command = 0;
9585 CommandSet command_set = (CommandSet)0;
9586 guint8 header [HEADER_LENGTH];
9587 guint8 *data, *p, *end;
9591 gboolean attach_failed = FALSE;
9593 DEBUG_PRINTF (1, "[dbg] Agent thread started, pid=%p\n", (gpointer)mono_native_thread_id_get ());
9595 debugger_thread_id = mono_native_thread_id_get ();
9597 mono_jit_thread_attach (mono_get_root_domain ());
9599 mono_thread_internal_current ()->flags |= MONO_THREAD_FLAG_DONT_MANAGE;
9601 mono_set_is_debugger_attached (TRUE);
9603 if (agent_config.defer) {
9604 if (!wait_for_attach ()) {
9605 DEBUG_PRINTF (1, "[dbg] Can't attach, aborting debugger thread.\n");
9606 attach_failed = TRUE; // Don't abort process when we can't listen
9608 /* Send start event to client */
9609 process_profiler_event (EVENT_KIND_VM_START, mono_thread_get_main ());
9613 while (!attach_failed) {
9614 MONO_PREPARE_BLOCKING;
9615 res = transport_recv (header, HEADER_LENGTH);
9616 MONO_FINISH_BLOCKING;
9618 /* This will break if the socket is closed during shutdown too */
9619 if (res != HEADER_LENGTH) {
9620 DEBUG_PRINTF (1, "[dbg] transport_recv () returned %d, expected %d.\n", res, HEADER_LENGTH);
9625 end = header + HEADER_LENGTH;
9627 len = decode_int (p, &p, end);
9628 id = decode_int (p, &p, end);
9629 flags = decode_byte (p, &p, end);
9630 command_set = (CommandSet)decode_byte (p, &p, end);
9631 command = decode_byte (p, &p, end);
9633 g_assert (flags == 0);
9636 const char *cmd_str;
9639 cmd_str = cmd_to_string (command_set, command);
9641 sprintf (cmd_num, "%d", command);
9645 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);
9648 data = (guint8 *)g_malloc (len - HEADER_LENGTH);
9649 if (len - HEADER_LENGTH > 0)
9651 MONO_PREPARE_BLOCKING;
9652 res = transport_recv (data, len - HEADER_LENGTH);
9653 MONO_FINISH_BLOCKING;
9654 if (res != len - HEADER_LENGTH) {
9655 DEBUG_PRINTF (1, "[dbg] transport_recv () returned %d, expected %d.\n", res, len - HEADER_LENGTH);
9661 end = data + (len - HEADER_LENGTH);
9663 buffer_init (&buf, 128);
9668 /* Process the request */
9669 switch (command_set) {
9671 err = vm_commands (command, id, p, end, &buf);
9672 if (err == ERR_NONE && command == CMD_VM_INVOKE_METHOD)
9673 /* Sent after the invoke is complete */
9676 case CMD_SET_EVENT_REQUEST:
9677 err = event_commands (command, p, end, &buf);
9679 case CMD_SET_APPDOMAIN:
9680 err = domain_commands (command, p, end, &buf);
9682 case CMD_SET_ASSEMBLY:
9683 err = assembly_commands (command, p, end, &buf);
9685 case CMD_SET_MODULE:
9686 err = module_commands (command, p, end, &buf);
9689 err = field_commands (command, p, end, &buf);
9692 err = type_commands (command, p, end, &buf);
9694 case CMD_SET_METHOD:
9695 err = method_commands (command, p, end, &buf);
9697 case CMD_SET_THREAD:
9698 err = thread_commands (command, p, end, &buf);
9700 case CMD_SET_STACK_FRAME:
9701 err = frame_commands (command, p, end, &buf);
9703 case CMD_SET_ARRAY_REF:
9704 err = array_commands (command, p, end, &buf);
9706 case CMD_SET_STRING_REF:
9707 err = string_commands (command, p, end, &buf);
9709 case CMD_SET_OBJECT_REF:
9710 err = object_commands (command, p, end, &buf);
9713 err = ERR_NOT_IMPLEMENTED;
9716 if (command_set == CMD_SET_VM && command == CMD_VM_START_BUFFERING) {
9717 buffer_replies = TRUE;
9721 if (buffer_replies) {
9722 buffer_reply_packet (id, err, &buf);
9724 send_reply_packet (id, err, &buf);
9725 //DEBUG_PRINTF (1, "[dbg] Sent reply to %d [at=%lx].\n", id, (long)mono_100ns_ticks () / 10000);
9729 if (err == ERR_NONE && command_set == CMD_SET_VM && command == CMD_VM_STOP_BUFFERING) {
9730 send_buffered_reply_packets ();
9731 buffer_replies = FALSE;
9737 if (command_set == CMD_SET_VM && (command == CMD_VM_DISPOSE || command == CMD_VM_EXIT))
9741 mono_set_is_debugger_attached (FALSE);
9743 mono_coop_mutex_lock (&debugger_thread_exited_mutex);
9744 debugger_thread_exited = TRUE;
9745 mono_coop_cond_signal (&debugger_thread_exited_cond);
9746 mono_coop_mutex_unlock (&debugger_thread_exited_mutex);
9748 DEBUG_PRINTF (1, "[dbg] Debugger thread exited.\n");
9750 if (!attach_failed && command_set == CMD_SET_VM && command == CMD_VM_DISPOSE && !(vm_death_event_sent || mono_runtime_is_shutting_down ())) {
9751 DEBUG_PRINTF (2, "[dbg] Detached - restarting clean debugger thread.\n");
9752 start_debugger_thread ();
9758 #else /* DISABLE_DEBUGGER_AGENT */
9761 mono_debugger_agent_parse_options (char *options)
9763 g_error ("This runtime is configured with the debugger agent disabled.");
9767 mono_debugger_agent_init (void)
9772 mono_debugger_agent_breakpoint_hit (void *sigctx)
9777 mono_debugger_agent_single_step_event (void *sigctx)
9782 mono_debugger_agent_free_domain_info (MonoDomain *domain)
9787 mono_debugger_agent_handle_exception (MonoException *ext, MonoContext *throw_ctx,
9788 MonoContext *catch_ctx)
9793 mono_debugger_agent_begin_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
9798 mono_debugger_agent_end_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
9803 mono_debugger_agent_user_break (void)
9809 mono_debugger_agent_debug_log (int level, MonoString *category, MonoString *message)
9814 mono_debugger_agent_debug_log_is_enabled (void)
9820 mono_debugger_agent_unhandled_exception (MonoException *exc)
9822 g_assert_not_reached ();
9826 debugger_agent_single_step_from_context (MonoContext *ctx)
9828 g_assert_not_reached ();
9832 debugger_agent_breakpoint_from_context (MonoContext *ctx)
9834 g_assert_not_reached ();