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.
9 * Licensed under the MIT license. See LICENSE file in the project root for full license information.
16 #ifdef HAVE_SYS_TYPES_H
17 #include <sys/types.h>
19 #ifdef HAVE_SYS_SELECT_H
20 #include <sys/select.h>
22 #ifdef HAVE_SYS_SOCKET_H
23 #include <sys/socket.h>
25 #ifdef HAVE_NETINET_TCP_H
26 #include <netinet/tcp.h>
28 #ifdef HAVE_NETINET_IN_H
29 #include <netinet/in.h>
49 #ifdef PLATFORM_ANDROID
51 #include <linux/tcp.h>
52 #include <sys/endian.h>
55 #include <mono/metadata/mono-debug.h>
56 #include <mono/metadata/mono-debug-debugger.h>
57 #include <mono/metadata/debug-mono-symfile.h>
58 #include <mono/metadata/gc-internals.h>
59 #include <mono/metadata/environment.h>
60 #include <mono/metadata/threads-types.h>
61 #include <mono/metadata/threadpool-ms.h>
62 #include <mono/metadata/socket-io.h>
63 #include <mono/metadata/assembly.h>
64 #include <mono/metadata/runtime.h>
65 #include <mono/metadata/verify-internals.h>
66 #include <mono/metadata/reflection-internals.h>
67 #include <mono/utils/mono-coop-mutex.h>
68 #include <mono/utils/mono-coop-semaphore.h>
69 #include <mono/utils/mono-error-internals.h>
70 #include <mono/utils/mono-stack-unwinding.h>
71 #include <mono/utils/mono-time.h>
72 #include <mono/utils/mono-threads.h>
73 #include <mono/utils/networking.h>
74 #include "debugger-agent.h"
76 #include "seq-points.h"
79 * On iOS we can't use System.Environment.Exit () as it will do the wrong
82 #if !defined (TARGET_IOS)
83 #define TRY_MANAGED_SYSTEM_ENVIRONMENT_EXIT
87 #ifndef MONO_ARCH_SOFT_DEBUG_SUPPORTED
88 #define DISABLE_DEBUGGER_AGENT 1
91 #ifdef DISABLE_SOFT_DEBUG
92 #define DISABLE_DEBUGGER_AGENT 1
95 #ifndef DISABLE_DEBUGGER_AGENT
97 #include <mono/utils/mono-os-mutex.h>
99 #define THREAD_TO_INTERNAL(thread) (thread)->internal_thread
122 guint32 il_offset, native_offset;
126 * If method is gshared, this is the actual instance, otherwise this is equal to
129 MonoMethod *actual_method;
131 * This is the method which is visible to debugger clients. Same as method,
132 * except for native-to-managed wrappers.
134 MonoMethod *api_method;
136 MonoDebugMethodJitInfo *jit;
139 mgreg_t *reg_locations [MONO_MAX_IREGS];
141 * Whenever ctx is set. This is FALSE for the last frame of running threads, since
142 * the frame can become invalid.
147 typedef struct _InvokeData InvokeData;
155 /* This is the context which needs to be restored after the invoke */
159 * If this is set, invoke this method with the arguments given by ARGS.
163 guint32 suspend_count;
166 InvokeData *last_invoke;
170 MonoThreadUnwindState context;
172 /* This is computed on demand when it is requested using the wire protocol */
173 /* It is freed up when the thread is resumed */
177 * Whenever the frame info is up-to-date. If not, compute_frame_info () will need to
180 gboolean frames_up_to_date;
182 * Points to data about a pending invoke which needs to be executed after the thread
185 InvokeData *pending_invoke;
187 * Set to TRUE if this thread is suspended in suspend_current () or it is executing
192 * Signals whenever the thread is in the process of suspending, i.e. it will suspend
193 * within a finite amount of time.
197 * Set to TRUE if this thread is suspended in suspend_current ().
199 gboolean really_suspended;
200 /* Used to pass the context to the breakpoint/single step handler */
201 MonoContext handler_ctx;
202 /* Whenever thread_stop () was called for this thread */
205 /* Whenever to disable breakpoints (used during invokes) */
206 gboolean disable_breakpoints;
209 * Number of times this thread has been resumed using resume_thread ().
211 guint32 resume_count;
213 MonoInternalThread *thread;
216 * Information about the frame which transitioned to native code for running
219 StackFrameInfo async_last_frame;
222 * The context where the stack walk can be started for running threads.
224 MonoThreadUnwindState async_state;
227 * The context used for filter clauses
229 MonoThreadUnwindState filter_state;
231 gboolean abort_requested;
234 * The current mono_runtime_invoke_checked invocation.
239 * The context where single stepping should resume while the thread is suspended because
240 * of an EXCEPTION event.
242 MonoThreadUnwindState catch_state;
245 * The context which needs to be restored after handling a single step/breakpoint
246 * event. This is the same as the ctx at step/breakpoint site, but includes changes
247 * to caller saved registers done by set_var ().
249 MonoThreadUnwindState restore_state;
250 /* Frames computed from restore_state */
251 int restore_frame_count;
252 StackFrame **restore_frames;
254 /* The currently unloading appdomain */
255 MonoDomain *domain_unloading;
260 void (*connect) (const char *address);
261 void (*close1) (void);
262 void (*close2) (void);
263 gboolean (*send) (void *buf, int len);
264 int (*recv) (void *buf, int len);
268 * Wire Protocol definitions
271 #define HEADER_LENGTH 11
273 #define MAJOR_VERSION 2
274 #define MINOR_VERSION 42
278 CMD_SET_OBJECT_REF = 9,
279 CMD_SET_STRING_REF = 10,
281 CMD_SET_ARRAY_REF = 13,
282 CMD_SET_EVENT_REQUEST = 15,
283 CMD_SET_STACK_FRAME = 16,
284 CMD_SET_APPDOMAIN = 20,
285 CMD_SET_ASSEMBLY = 21,
294 EVENT_KIND_VM_START = 0,
295 EVENT_KIND_VM_DEATH = 1,
296 EVENT_KIND_THREAD_START = 2,
297 EVENT_KIND_THREAD_DEATH = 3,
298 EVENT_KIND_APPDOMAIN_CREATE = 4,
299 EVENT_KIND_APPDOMAIN_UNLOAD = 5,
300 EVENT_KIND_METHOD_ENTRY = 6,
301 EVENT_KIND_METHOD_EXIT = 7,
302 EVENT_KIND_ASSEMBLY_LOAD = 8,
303 EVENT_KIND_ASSEMBLY_UNLOAD = 9,
304 EVENT_KIND_BREAKPOINT = 10,
305 EVENT_KIND_STEP = 11,
306 EVENT_KIND_TYPE_LOAD = 12,
307 EVENT_KIND_EXCEPTION = 13,
308 EVENT_KIND_KEEPALIVE = 14,
309 EVENT_KIND_USER_BREAK = 15,
310 EVENT_KIND_USER_LOG = 16
314 SUSPEND_POLICY_NONE = 0,
315 SUSPEND_POLICY_EVENT_THREAD = 1,
316 SUSPEND_POLICY_ALL = 2
321 ERR_INVALID_OBJECT = 20,
322 ERR_INVALID_FIELDID = 25,
323 ERR_INVALID_FRAMEID = 30,
324 ERR_NOT_IMPLEMENTED = 100,
325 ERR_NOT_SUSPENDED = 101,
326 ERR_INVALID_ARGUMENT = 102,
328 ERR_NO_INVOCATION = 104,
329 ERR_ABSENT_INFORMATION = 105,
330 ERR_NO_SEQ_POINT_AT_IL_OFFSET = 106,
331 ERR_INVOKE_ABORTED = 107,
332 ERR_LOADER_ERROR = 200, /*XXX extend the protocol to pass this information down the pipe */
337 MOD_KIND_THREAD_ONLY = 3,
338 MOD_KIND_LOCATION_ONLY = 7,
339 MOD_KIND_EXCEPTION_ONLY = 8,
341 MOD_KIND_ASSEMBLY_ONLY = 11,
342 MOD_KIND_SOURCE_FILE_ONLY = 12,
343 MOD_KIND_TYPE_NAME_ONLY = 13,
359 STEP_FILTER_NONE = 0,
360 STEP_FILTER_STATIC_CTOR = 1,
361 STEP_FILTER_DEBUGGER_HIDDEN = 2,
362 STEP_FILTER_DEBUGGER_STEP_THROUGH = 4,
363 STEP_FILTER_DEBUGGER_NON_USER_CODE = 8
367 TOKEN_TYPE_STRING = 0,
369 TOKEN_TYPE_FIELD = 2,
370 TOKEN_TYPE_METHOD = 3,
371 TOKEN_TYPE_UNKNOWN = 4
375 VALUE_TYPE_ID_NULL = 0xf0,
376 VALUE_TYPE_ID_TYPE = 0xf1,
377 VALUE_TYPE_ID_PARENT_VTYPE = 0xf2
381 FRAME_FLAG_DEBUGGER_INVOKE = 1,
382 FRAME_FLAG_NATIVE_TRANSITION = 2
386 INVOKE_FLAG_DISABLE_BREAKPOINTS = 1,
387 INVOKE_FLAG_SINGLE_THREADED = 2,
388 INVOKE_FLAG_RETURN_OUT_THIS = 4,
389 INVOKE_FLAG_RETURN_OUT_ARGS = 8,
390 INVOKE_FLAG_VIRTUAL = 16
394 BINDING_FLAGS_IGNORE_CASE = 0x70000000,
395 } BindingFlagsExtensions;
399 CMD_VM_ALL_THREADS = 2,
404 CMD_VM_INVOKE_METHOD = 7,
405 CMD_VM_SET_PROTOCOL_VERSION = 8,
406 CMD_VM_ABORT_INVOKE = 9,
407 CMD_VM_SET_KEEPALIVE = 10,
408 CMD_VM_GET_TYPES_FOR_SOURCE_FILE = 11,
409 CMD_VM_GET_TYPES = 12,
410 CMD_VM_INVOKE_METHODS = 13,
411 CMD_VM_START_BUFFERING = 14,
412 CMD_VM_STOP_BUFFERING = 15
416 CMD_THREAD_GET_FRAME_INFO = 1,
417 CMD_THREAD_GET_NAME = 2,
418 CMD_THREAD_GET_STATE = 3,
419 CMD_THREAD_GET_INFO = 4,
420 CMD_THREAD_GET_ID = 5,
421 CMD_THREAD_GET_TID = 6,
422 CMD_THREAD_SET_IP = 7
426 CMD_EVENT_REQUEST_SET = 1,
427 CMD_EVENT_REQUEST_CLEAR = 2,
428 CMD_EVENT_REQUEST_CLEAR_ALL_BREAKPOINTS = 3
436 CMD_APPDOMAIN_GET_ROOT_DOMAIN = 1,
437 CMD_APPDOMAIN_GET_FRIENDLY_NAME = 2,
438 CMD_APPDOMAIN_GET_ASSEMBLIES = 3,
439 CMD_APPDOMAIN_GET_ENTRY_ASSEMBLY = 4,
440 CMD_APPDOMAIN_CREATE_STRING = 5,
441 CMD_APPDOMAIN_GET_CORLIB = 6,
442 CMD_APPDOMAIN_CREATE_BOXED_VALUE = 7
446 CMD_ASSEMBLY_GET_LOCATION = 1,
447 CMD_ASSEMBLY_GET_ENTRY_POINT = 2,
448 CMD_ASSEMBLY_GET_MANIFEST_MODULE = 3,
449 CMD_ASSEMBLY_GET_OBJECT = 4,
450 CMD_ASSEMBLY_GET_TYPE = 5,
451 CMD_ASSEMBLY_GET_NAME = 6
455 CMD_MODULE_GET_INFO = 1,
459 CMD_FIELD_GET_INFO = 1,
463 CMD_METHOD_GET_NAME = 1,
464 CMD_METHOD_GET_DECLARING_TYPE = 2,
465 CMD_METHOD_GET_DEBUG_INFO = 3,
466 CMD_METHOD_GET_PARAM_INFO = 4,
467 CMD_METHOD_GET_LOCALS_INFO = 5,
468 CMD_METHOD_GET_INFO = 6,
469 CMD_METHOD_GET_BODY = 7,
470 CMD_METHOD_RESOLVE_TOKEN = 8,
471 CMD_METHOD_GET_CATTRS = 9,
472 CMD_METHOD_MAKE_GENERIC_METHOD = 10
476 CMD_TYPE_GET_INFO = 1,
477 CMD_TYPE_GET_METHODS = 2,
478 CMD_TYPE_GET_FIELDS = 3,
479 CMD_TYPE_GET_VALUES = 4,
480 CMD_TYPE_GET_OBJECT = 5,
481 CMD_TYPE_GET_SOURCE_FILES = 6,
482 CMD_TYPE_SET_VALUES = 7,
483 CMD_TYPE_IS_ASSIGNABLE_FROM = 8,
484 CMD_TYPE_GET_PROPERTIES = 9,
485 CMD_TYPE_GET_CATTRS = 10,
486 CMD_TYPE_GET_FIELD_CATTRS = 11,
487 CMD_TYPE_GET_PROPERTY_CATTRS = 12,
488 CMD_TYPE_GET_SOURCE_FILES_2 = 13,
489 CMD_TYPE_GET_VALUES_2 = 14,
490 CMD_TYPE_GET_METHODS_BY_NAME_FLAGS = 15,
491 CMD_TYPE_GET_INTERFACES = 16,
492 CMD_TYPE_GET_INTERFACE_MAP = 17,
493 CMD_TYPE_IS_INITIALIZED = 18,
494 CMD_TYPE_CREATE_INSTANCE = 19
498 CMD_STACK_FRAME_GET_VALUES = 1,
499 CMD_STACK_FRAME_GET_THIS = 2,
500 CMD_STACK_FRAME_SET_VALUES = 3,
501 CMD_STACK_FRAME_GET_DOMAIN = 4,
505 CMD_ARRAY_REF_GET_LENGTH = 1,
506 CMD_ARRAY_REF_GET_VALUES = 2,
507 CMD_ARRAY_REF_SET_VALUES = 3,
511 CMD_STRING_REF_GET_VALUE = 1,
512 CMD_STRING_REF_GET_LENGTH = 2,
513 CMD_STRING_REF_GET_CHARS = 3
517 CMD_OBJECT_REF_GET_TYPE = 1,
518 CMD_OBJECT_REF_GET_VALUES = 2,
519 CMD_OBJECT_REF_IS_COLLECTED = 3,
520 CMD_OBJECT_REF_GET_ADDRESS = 4,
521 CMD_OBJECT_REF_GET_DOMAIN = 5,
522 CMD_OBJECT_REF_SET_VALUES = 6,
523 CMD_OBJECT_REF_GET_INFO = 7,
529 int count; /* For kind == MOD_KIND_COUNT */
530 MonoInternalThread *thread; /* For kind == MOD_KIND_THREAD_ONLY */
531 MonoClass *exc_class; /* For kind == MONO_KIND_EXCEPTION_ONLY */
532 MonoAssembly **assemblies; /* For kind == MONO_KIND_ASSEMBLY_ONLY */
533 GHashTable *source_files; /* For kind == MONO_KIND_SOURCE_FILE_ONLY */
534 GHashTable *type_names; /* For kind == MONO_KIND_TYPE_NAME_ONLY */
535 StepFilter filter; /* For kind == MOD_KIND_STEP */
537 gboolean caught, uncaught, subclasses; /* For kind == MOD_KIND_EXCEPTION_ONLY */
546 Modifier modifiers [MONO_ZERO_LEN_ARRAY];
550 * Describes a single step request.
554 MonoInternalThread *thread;
560 MonoMethod *start_method;
561 MonoMethod *last_method;
563 /* Whenever single stepping is performed using start/stop_single_stepping () */
565 /* The list of breakpoints used to implement step-over */
567 /* The number of frames at the start of a step-over */
572 * Contains additional information for an event
575 /* For EVENT_KIND_EXCEPTION */
577 MonoContext catch_ctx;
579 /* For EVENT_KIND_USER_LOG */
581 char *category, *message;
582 /* For EVENT_KIND_TYPE_LOAD */
586 /* Dummy structure used for the profiler callbacks */
592 guint8 *buf, *p, *end;
595 typedef struct ReplyPacket {
601 #define DEBUG(level,s) do { if (G_UNLIKELY ((level) <= log_level)) { s; fflush (log_file); } } while (0)
603 #ifdef PLATFORM_ANDROID
604 #define DEBUG_PRINTF(level, ...) do { if (G_UNLIKELY ((level) <= log_level)) { g_print (__VA_ARGS__); } } while (0)
606 #define DEBUG_PRINTF(level, ...) do { if (G_UNLIKELY ((level) <= log_level)) { fprintf (log_file, __VA_ARGS__); fflush (log_file); } } while (0)
610 #define get_last_sock_error() WSAGetLastError()
611 #define MONO_EWOULDBLOCK WSAEWOULDBLOCK
612 #define MONO_EINTR WSAEINTR
614 #define get_last_sock_error() errno
615 #define MONO_EWOULDBLOCK EWOULDBLOCK
616 #define MONO_EINTR EINTR
619 #define CHECK_PROTOCOL_VERSION(major,minor) \
620 (protocol_version_set && (major_version > (major) || (major_version == (major) && minor_version >= (minor))))
626 static AgentConfig agent_config;
629 * Whenever the agent is fully initialized.
630 * When using the onuncaught or onthrow options, only some parts of the agent are
631 * initialized on startup, and the full initialization which includes connection
632 * establishment and the startup of the agent thread is only done in response to
635 static gint32 inited;
637 #ifndef DISABLE_SOCKET_TRANSPORT
639 static int listen_fd;
642 static int packet_id = 0;
644 static int objref_id = 0;
646 static int event_request_id = 0;
648 static int frame_id = 0;
650 static GPtrArray *event_requests;
652 static MonoNativeTlsKey debugger_tls_id;
654 static gboolean vm_start_event_sent, vm_death_event_sent, disconnected;
656 /* Maps MonoInternalThread -> DebuggerTlsData */
657 /* Protected by the loader lock */
658 static MonoGHashTable *thread_to_tls;
660 /* Maps tid -> MonoInternalThread */
661 /* Protected by the loader lock */
662 static MonoGHashTable *tid_to_thread;
664 /* Maps tid -> MonoThread (not MonoInternalThread) */
665 /* Protected by the loader lock */
666 static MonoGHashTable *tid_to_thread_obj;
668 static MonoNativeThreadId debugger_thread_id;
670 static HANDLE debugger_thread_handle;
672 static int log_level;
674 static gboolean embedding;
676 static FILE *log_file;
678 /* Assemblies whose assembly load event has no been sent yet */
679 /* Protected by the dbg lock */
680 static GPtrArray *pending_assembly_loads;
682 /* Whenever the debugger thread has exited */
683 static gboolean debugger_thread_exited;
685 /* Cond variable used to wait for debugger_thread_exited becoming true */
686 static MonoCoopCond debugger_thread_exited_cond;
688 /* Mutex for the cond var above */
689 static MonoCoopMutex debugger_thread_exited_mutex;
691 static DebuggerProfiler debugger_profiler;
693 /* The single step request instance */
694 static SingleStepReq *ss_req;
696 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
697 /* Number of single stepping operations in progress */
701 /* The protocol version of the client */
702 static int major_version, minor_version;
704 /* Whenever the variables above are set by the client */
705 static gboolean protocol_version_set;
707 /* A hash table containing all active domains */
708 /* Protected by the loader lock */
709 static GHashTable *domains;
711 /* The number of times the runtime is suspended */
712 static gint32 suspend_count;
714 /* Whenever to buffer reply messages and send them together */
715 static gboolean buffer_replies;
717 /* Buffered reply packets */
718 static ReplyPacket reply_packets [128];
721 #define dbg_lock() mono_coop_mutex_lock (&debug_mutex)
722 #define dbg_unlock() mono_coop_mutex_unlock (&debug_mutex)
723 static MonoCoopMutex debug_mutex;
725 static void transport_init (void);
726 static void transport_connect (const char *address);
727 static gboolean transport_handshake (void);
728 static void register_transport (DebuggerTransport *trans);
730 static guint32 WINAPI debugger_thread (void *arg);
732 static void runtime_initialized (MonoProfiler *prof);
734 static void runtime_shutdown (MonoProfiler *prof);
736 static void thread_startup (MonoProfiler *prof, uintptr_t tid);
738 static void thread_end (MonoProfiler *prof, uintptr_t tid);
740 static void appdomain_load (MonoProfiler *prof, MonoDomain *domain, int result);
742 static void appdomain_start_unload (MonoProfiler *prof, MonoDomain *domain);
744 static void appdomain_unload (MonoProfiler *prof, MonoDomain *domain);
746 static void emit_appdomain_load (gpointer key, gpointer value, gpointer user_data);
748 static void emit_thread_start (gpointer key, gpointer value, gpointer user_data);
750 static void invalidate_each_thread (gpointer key, gpointer value, gpointer user_data);
752 static void assembly_load (MonoProfiler *prof, MonoAssembly *assembly, int result);
754 static void assembly_unload (MonoProfiler *prof, MonoAssembly *assembly);
756 static void emit_assembly_load (gpointer assembly, gpointer user_data);
758 static void emit_type_load (gpointer key, gpointer type, gpointer user_data);
760 static void jit_end (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *jinfo, int result);
762 static void add_pending_breakpoints (MonoMethod *method, MonoJitInfo *jinfo);
764 static void start_single_stepping (void);
766 static void stop_single_stepping (void);
768 static void suspend_current (void);
770 static void clear_event_requests_for_assembly (MonoAssembly *assembly);
772 static void clear_types_for_assembly (MonoAssembly *assembly);
774 static void clear_breakpoints_for_domain (MonoDomain *domain);
776 static void process_profiler_event (EventKind event, gpointer arg);
778 /* Submodule init/cleanup */
779 static void breakpoints_init (void);
780 static void breakpoints_cleanup (void);
782 static void objrefs_init (void);
783 static void objrefs_cleanup (void);
785 static void ids_init (void);
786 static void ids_cleanup (void);
788 static void suspend_init (void);
790 static void ss_start (SingleStepReq *ss_req, MonoMethod *method, SeqPoint *sp, MonoSeqPointInfo *info, MonoContext *ctx, DebuggerTlsData *tls, gboolean step_to_catch,
791 StackFrame **frames, int nframes);
792 static ErrorCode ss_create (MonoInternalThread *thread, StepSize size, StepDepth depth, StepFilter filter, EventRequest *req);
793 static void ss_destroy (SingleStepReq *req);
795 static void start_debugger_thread (void);
796 static void stop_debugger_thread (void);
798 static void finish_agent_init (gboolean on_startup);
800 static void process_profiler_event (EventKind event, gpointer arg);
802 static void invalidate_frames (DebuggerTlsData *tls);
804 #ifndef DISABLE_SOCKET_TRANSPORT
806 register_socket_transport (void);
809 static inline gboolean
810 is_debugger_thread (void)
812 return mono_native_thread_id_equals (mono_native_thread_id_get (), debugger_thread_id);
816 parse_address (char *address, char **host, int *port)
818 char *pos = strchr (address, ':');
820 if (pos == NULL || pos == address)
823 *host = (char *)g_malloc (pos - address + 1);
824 strncpy (*host, address, pos - address);
825 (*host) [pos - address] = '\0';
827 *port = atoi (pos + 1);
835 fprintf (stderr, "Usage: mono --debugger-agent=[<option>=<value>,...] ...\n");
836 fprintf (stderr, "Available options:\n");
837 fprintf (stderr, " transport=<transport>\t\tTransport to use for connecting to the debugger (mandatory, possible values: 'dt_socket')\n");
838 fprintf (stderr, " address=<hostname>:<port>\tAddress to connect to (mandatory)\n");
839 fprintf (stderr, " loglevel=<n>\t\t\tLog level (defaults to 0)\n");
840 fprintf (stderr, " logfile=<file>\t\tFile to log to (defaults to stdout)\n");
841 fprintf (stderr, " suspend=y/n\t\t\tWhether to suspend after startup.\n");
842 fprintf (stderr, " timeout=<n>\t\t\tTimeout for connecting in milliseconds.\n");
843 fprintf (stderr, " server=y/n\t\t\tWhether to listen for a client connection.\n");
844 fprintf (stderr, " keepalive=<n>\t\t\tSend keepalive events every n milliseconds.\n");
845 fprintf (stderr, " setpgid=y/n\t\t\tWhether to call setpid(0, 0) after startup.\n");
846 fprintf (stderr, " help\t\t\t\tPrint this help.\n");
850 parse_flag (const char *option, char *flag)
852 if (!strcmp (flag, "y"))
854 else if (!strcmp (flag, "n"))
857 fprintf (stderr, "debugger-agent: The valid values for the '%s' option are 'y' and 'n'.\n", option);
864 mono_debugger_agent_parse_options (char *options)
871 #ifndef MONO_ARCH_SOFT_DEBUG_SUPPORTED
872 fprintf (stderr, "--debugger-agent is not supported on this platform.\n");
876 extra = g_getenv ("MONO_SDB_ENV_OPTIONS");
878 options = g_strdup_printf ("%s,%s", options, extra);
880 agent_config.enabled = TRUE;
881 agent_config.suspend = TRUE;
882 agent_config.server = FALSE;
883 agent_config.defer = FALSE;
884 agent_config.address = NULL;
886 //agent_config.log_level = 10;
888 args = g_strsplit (options, ",", -1);
889 for (ptr = args; ptr && *ptr; ptr ++) {
892 if (strncmp (arg, "transport=", 10) == 0) {
893 agent_config.transport = g_strdup (arg + 10);
894 } else if (strncmp (arg, "address=", 8) == 0) {
895 agent_config.address = g_strdup (arg + 8);
896 } else if (strncmp (arg, "loglevel=", 9) == 0) {
897 agent_config.log_level = atoi (arg + 9);
898 } else if (strncmp (arg, "logfile=", 8) == 0) {
899 agent_config.log_file = g_strdup (arg + 8);
900 } else if (strncmp (arg, "suspend=", 8) == 0) {
901 agent_config.suspend = parse_flag ("suspend", arg + 8);
902 } else if (strncmp (arg, "server=", 7) == 0) {
903 agent_config.server = parse_flag ("server", arg + 7);
904 } else if (strncmp (arg, "onuncaught=", 11) == 0) {
905 agent_config.onuncaught = parse_flag ("onuncaught", arg + 11);
906 } else if (strncmp (arg, "onthrow=", 8) == 0) {
907 /* We support multiple onthrow= options */
908 agent_config.onthrow = g_slist_append (agent_config.onthrow, g_strdup (arg + 8));
909 } else if (strncmp (arg, "onthrow", 7) == 0) {
910 agent_config.onthrow = g_slist_append (agent_config.onthrow, g_strdup (""));
911 } else if (strncmp (arg, "help", 4) == 0) {
914 } else if (strncmp (arg, "timeout=", 8) == 0) {
915 agent_config.timeout = atoi (arg + 8);
916 } else if (strncmp (arg, "launch=", 7) == 0) {
917 agent_config.launch = g_strdup (arg + 7);
918 } else if (strncmp (arg, "embedding=", 10) == 0) {
919 agent_config.embedding = atoi (arg + 10) == 1;
920 } else if (strncmp (arg, "keepalive=", 10) == 0) {
921 agent_config.keepalive = atoi (arg + 10);
922 } else if (strncmp (arg, "setpgid=", 8) == 0) {
923 agent_config.setpgid = parse_flag ("setpgid", arg + 8);
930 if (agent_config.server && !agent_config.suspend) {
931 /* Waiting for deferred attachment */
932 agent_config.defer = TRUE;
933 if (agent_config.address == NULL) {
934 agent_config.address = g_strdup_printf ("0.0.0.0:%u", 56000 + (getpid () % 1000));
938 //agent_config.log_level = 0;
940 if (agent_config.transport == NULL) {
941 fprintf (stderr, "debugger-agent: The 'transport' option is mandatory.\n");
945 if (agent_config.address == NULL && !agent_config.server) {
946 fprintf (stderr, "debugger-agent: The 'address' option is mandatory.\n");
951 if (!strcmp (agent_config.transport, "dt_socket")) {
952 if (agent_config.address && parse_address (agent_config.address, &host, &port)) {
953 fprintf (stderr, "debugger-agent: The format of the 'address' options is '<host>:<port>'\n");
960 mono_debugger_agent_init (void)
962 mono_coop_mutex_init_recursive (&debug_mutex);
964 if (!agent_config.enabled)
969 /* Need to know whenever a thread has acquired the loader mutex */
970 mono_loader_lock_track_ownership (TRUE);
972 event_requests = g_ptr_array_new ();
974 mono_coop_mutex_init (&debugger_thread_exited_mutex);
975 mono_coop_cond_init (&debugger_thread_exited_cond);
977 mono_profiler_install ((MonoProfiler*)&debugger_profiler, runtime_shutdown);
978 mono_profiler_set_events ((MonoProfileFlags)(MONO_PROFILE_APPDOMAIN_EVENTS | MONO_PROFILE_THREADS | MONO_PROFILE_ASSEMBLY_EVENTS | MONO_PROFILE_JIT_COMPILATION | MONO_PROFILE_METHOD_EVENTS));
979 mono_profiler_install_runtime_initialized (runtime_initialized);
980 mono_profiler_install_appdomain (NULL, appdomain_load, appdomain_start_unload, appdomain_unload);
981 mono_profiler_install_thread (thread_startup, thread_end);
982 mono_profiler_install_assembly (NULL, assembly_load, assembly_unload, NULL);
983 mono_profiler_install_jit_end (jit_end);
985 mono_native_tls_alloc (&debugger_tls_id, NULL);
987 /* Needed by the hash_table_new_type () call below */
988 mono_gc_base_init ();
990 thread_to_tls = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_KEY_GC, MONO_ROOT_SOURCE_DEBUGGER, "thread-to-tls table");
991 MONO_GC_REGISTER_ROOT_FIXED (thread_to_tls, MONO_ROOT_SOURCE_DEBUGGER, "thread-to-tls table");
993 tid_to_thread = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_VALUE_GC, MONO_ROOT_SOURCE_DEBUGGER, "tid-to-thread table");
994 MONO_GC_REGISTER_ROOT_FIXED (tid_to_thread, MONO_ROOT_SOURCE_DEBUGGER, "tid-to-thread table");
996 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");
997 MONO_GC_REGISTER_ROOT_FIXED (tid_to_thread_obj, MONO_ROOT_SOURCE_DEBUGGER, "tid-to-thread object table");
999 pending_assembly_loads = g_ptr_array_new ();
1000 domains = g_hash_table_new (mono_aligned_addr_hash, NULL);
1002 log_level = agent_config.log_level;
1004 embedding = agent_config.embedding;
1005 disconnected = TRUE;
1007 if (agent_config.log_file) {
1008 log_file = fopen (agent_config.log_file, "w+");
1010 fprintf (stderr, "Unable to create log file '%s': %s.\n", agent_config.log_file, strerror (errno));
1019 breakpoints_init ();
1022 mini_get_debug_options ()->gen_sdb_seq_points = TRUE;
1024 * This is needed because currently we don't handle liveness info.
1026 mini_get_debug_options ()->mdb_optimizations = TRUE;
1028 #ifndef MONO_ARCH_HAVE_CONTEXT_SET_INT_REG
1029 /* This is needed because we can't set local variables in registers yet */
1030 mono_disable_optimizations (MONO_OPT_LINEARS);
1034 * The stack walk done from thread_interrupt () needs to be signal safe, but it
1035 * isn't, since it can call into mono_aot_find_jit_info () which is not signal
1036 * safe (#3411). So load AOT info eagerly when the debugger is running as a
1039 mini_get_debug_options ()->load_aot_jit_info_eagerly = TRUE;
1042 if (agent_config.setpgid)
1046 if (!agent_config.onuncaught && !agent_config.onthrow)
1047 finish_agent_init (TRUE);
1051 * finish_agent_init:
1053 * Finish the initialization of the agent. This involves connecting the transport
1054 * and starting the agent thread. This is either done at startup, or
1055 * in response to some event like an unhandled exception.
1058 finish_agent_init (gboolean on_startup)
1062 if (InterlockedCompareExchange (&inited, 1, 0) == 1)
1065 if (agent_config.launch) {
1068 // FIXME: Generated address
1069 // FIXME: Races with transport_connect ()
1071 argv [0] = agent_config.launch;
1072 argv [1] = agent_config.transport;
1073 argv [2] = agent_config.address;
1076 res = g_spawn_async_with_pipes (NULL, argv, NULL, (GSpawnFlags)0, NULL, NULL, NULL, NULL, NULL, NULL, NULL);
1078 fprintf (stderr, "Failed to execute '%s'.\n", agent_config.launch);
1083 transport_connect (agent_config.address);
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 gint64 last_keepalive;
1130 res = recv (fd, (char *) buf + total, len - total, flags);
1133 if (agent_config.keepalive) {
1134 gboolean need_keepalive = FALSE;
1135 if (res == -1 && get_last_sock_error () == MONO_EWOULDBLOCK) {
1136 need_keepalive = TRUE;
1137 } else if (res == -1) {
1138 /* This could happen if recv () is interrupted repeatedly */
1139 msecs = mono_msec_ticks ();
1140 if (msecs - last_keepalive >= agent_config.keepalive) {
1141 need_keepalive = TRUE;
1142 last_keepalive = msecs;
1145 if (need_keepalive) {
1146 process_profiler_event (EVENT_KIND_KEEPALIVE, NULL);
1150 } while ((res > 0 && total < len) || (res == -1 && get_last_sock_error () == MONO_EINTR));
1158 set_keepalive (void)
1163 if (!agent_config.keepalive || !conn_fd)
1166 tv.tv_sec = agent_config.keepalive / 1000;
1167 tv.tv_usec = (agent_config.keepalive % 1000) * 1000;
1169 result = setsockopt (conn_fd, SOL_SOCKET, SO_RCVTIMEO, (char *) &tv, sizeof(struct timeval));
1170 g_assert (result >= 0);
1174 socket_transport_accept (int socket_fd)
1177 conn_fd = accept (socket_fd, NULL, NULL);
1180 if (conn_fd == -1) {
1181 fprintf (stderr, "debugger-agent: Unable to listen on %d\n", socket_fd);
1183 DEBUG_PRINTF (1, "Accepted connection from client, connection fd=%d.\n", conn_fd);
1190 socket_transport_send (void *data, int len)
1197 res = send (conn_fd, data, len, 0);
1198 } while (res == -1 && get_last_sock_error () == MONO_EINTR);
1209 * socket_transport_connect:
1211 * Connect/Listen on HOST:PORT. If HOST is NULL, generate an address and listen on it.
1214 socket_transport_connect (const char *address)
1216 MonoAddressInfo *result;
1217 MonoAddressEntry *rp;
1218 int sfd = -1, s, res;
1222 if (agent_config.address) {
1223 res = parse_address (agent_config.address, &host, &port);
1224 g_assert (res == 0);
1235 mono_network_init ();
1237 /* Obtain address(es) matching host/port */
1238 s = mono_get_address_info (host, port, MONO_HINT_UNSPECIFIED, &result);
1240 fprintf (stderr, "debugger-agent: Unable to resolve %s:%d: %d\n", host, port, s); // FIXME add portable error conversion functions
1245 if (agent_config.server) {
1246 /* Wait for a connection */
1248 struct sockaddr_in addr;
1251 /* No address, generate one */
1252 sfd = socket (AF_INET, SOCK_STREAM, 0);
1255 /* This will bind the socket to a random port */
1256 res = listen (sfd, 16);
1258 fprintf (stderr, "debugger-agent: Unable to setup listening socket: %s\n", strerror (get_last_sock_error ()));
1263 addrlen = sizeof (addr);
1264 memset (&addr, 0, sizeof (addr));
1265 res = getsockname (sfd, (struct sockaddr*)&addr, &addrlen);
1266 g_assert (res == 0);
1268 host = (char*)"127.0.0.1";
1269 port = ntohs (addr.sin_port);
1271 /* Emit the address to stdout */
1272 /* FIXME: Should print another interface, not localhost */
1273 printf ("%s:%d\n", host, port);
1275 /* Listen on the provided address */
1276 for (rp = result->entries; rp != NULL; rp = rp->next) {
1277 MonoSocketAddress sockaddr;
1281 mono_socket_address_init (&sockaddr, &sock_len, rp->family, &rp->address, port);
1283 sfd = socket (rp->family, rp->socktype,
1288 if (setsockopt (sfd, SOL_SOCKET, SO_REUSEADDR, &n, sizeof(n)) == -1)
1291 res = bind (sfd, &sockaddr.addr, sock_len);
1295 res = listen (sfd, 16);
1302 mono_free_address_info (result);
1305 if (agent_config.defer)
1308 DEBUG_PRINTF (1, "Listening on %s:%d (timeout=%d ms)...\n", host, port, agent_config.timeout);
1310 if (agent_config.timeout) {
1315 tv.tv_usec = agent_config.timeout * 1000;
1317 FD_SET (sfd, &readfds);
1320 res = select (sfd + 1, &readfds, NULL, NULL, &tv);
1324 fprintf (stderr, "debugger-agent: Timed out waiting to connect.\n");
1329 conn_fd = socket_transport_accept (sfd);
1333 DEBUG_PRINTF (1, "Accepted connection from client, socket fd=%d.\n", conn_fd);
1335 /* Connect to the specified address */
1336 /* FIXME: Respect the timeout */
1337 for (rp = result->entries; rp != NULL; rp = rp->next) {
1338 MonoSocketAddress sockaddr;
1341 mono_socket_address_init (&sockaddr, &sock_len, rp->family, &rp->address, port);
1343 sfd = socket (rp->family, rp->socktype,
1349 res = connect (sfd, &sockaddr.addr, sock_len);
1353 break; /* Success */
1361 fprintf (stderr, "debugger-agent: Unable to connect to %s:%d\n", host, port);
1367 mono_free_address_info (result);
1370 if (!transport_handshake ())
1375 socket_transport_close1 (void)
1377 /* This will interrupt the agent thread */
1378 /* Close the read part only so it can still send back replies */
1379 /* Also shut down the connection listener so that we can exit normally */
1381 /* SD_RECEIVE doesn't break the recv in the debugger thread */
1382 shutdown (conn_fd, SD_BOTH);
1383 shutdown (listen_fd, SD_BOTH);
1384 closesocket (listen_fd);
1386 shutdown (conn_fd, SHUT_RD);
1387 shutdown (listen_fd, SHUT_RDWR);
1395 socket_transport_close2 (void)
1398 shutdown (conn_fd, SD_BOTH);
1400 shutdown (conn_fd, SHUT_RDWR);
1405 register_socket_transport (void)
1407 DebuggerTransport trans;
1409 trans.name = "dt_socket";
1410 trans.connect = socket_transport_connect;
1411 trans.close1 = socket_transport_close1;
1412 trans.close2 = socket_transport_close2;
1413 trans.send = socket_transport_send;
1414 trans.recv = socket_transport_recv;
1416 register_transport (&trans);
1420 * socket_fd_transport_connect:
1424 socket_fd_transport_connect (const char *address)
1428 res = sscanf (address, "%d", &conn_fd);
1430 fprintf (stderr, "debugger-agent: socket-fd transport address is invalid: '%s'\n", address);
1434 if (!transport_handshake ())
1439 register_socket_fd_transport (void)
1441 DebuggerTransport trans;
1443 /* This is the same as the 'dt_socket' transport, but receives an already connected socket fd */
1444 trans.name = "socket-fd";
1445 trans.connect = socket_fd_transport_connect;
1446 trans.close1 = socket_transport_close1;
1447 trans.close2 = socket_transport_close2;
1448 trans.send = socket_transport_send;
1449 trans.recv = socket_transport_recv;
1451 register_transport (&trans);
1454 #endif /* DISABLE_SOCKET_TRANSPORT */
1460 #define MAX_TRANSPORTS 16
1462 static DebuggerTransport *transport;
1464 static DebuggerTransport transports [MAX_TRANSPORTS];
1465 static int ntransports;
1468 mono_debugger_agent_register_transport (DebuggerTransport *trans);
1471 mono_debugger_agent_register_transport (DebuggerTransport *trans)
1473 register_transport (trans);
1477 register_transport (DebuggerTransport *trans)
1479 g_assert (ntransports < MAX_TRANSPORTS);
1481 memcpy (&transports [ntransports], trans, sizeof (DebuggerTransport));
1486 transport_init (void)
1490 #ifndef DISABLE_SOCKET_TRANSPORT
1491 register_socket_transport ();
1492 register_socket_fd_transport ();
1495 for (i = 0; i < ntransports; ++i) {
1496 if (!strcmp (agent_config.transport, transports [i].name))
1499 if (i == ntransports) {
1500 fprintf (stderr, "debugger-agent: The supported values for the 'transport' option are: ");
1501 for (i = 0; i < ntransports; ++i)
1502 fprintf (stderr, "%s'%s'", i > 0 ? ", " : "", transports [i].name);
1503 fprintf (stderr, "\n");
1506 transport = &transports [i];
1510 transport_connect (const char *address)
1512 transport->connect (address);
1516 transport_close1 (void)
1518 transport->close1 ();
1522 transport_close2 (void)
1524 transport->close2 ();
1528 transport_send (void *buf, int len)
1530 return transport->send (buf, len);
1534 transport_recv (void *buf, int len)
1536 return transport->recv (buf, len);
1540 mono_debugger_agent_transport_handshake (void)
1542 return transport_handshake ();
1546 transport_handshake (void)
1548 char handshake_msg [128];
1552 disconnected = TRUE;
1554 /* Write handshake message */
1555 sprintf (handshake_msg, "DWP-Handshake");
1558 res = transport_send (handshake_msg, strlen (handshake_msg));
1559 } while (res == -1 && get_last_sock_error () == MONO_EINTR);
1561 g_assert (res != -1);
1564 res = transport_recv (buf, strlen (handshake_msg));
1565 if ((res != strlen (handshake_msg)) || (memcmp (buf, handshake_msg, strlen (handshake_msg)) != 0)) {
1566 fprintf (stderr, "debugger-agent: DWP handshake failed.\n");
1571 * To support older clients, the client sends its protocol version after connecting
1572 * using a command. Until that is received, default to our protocol version.
1574 major_version = MAJOR_VERSION;
1575 minor_version = MINOR_VERSION;
1576 protocol_version_set = FALSE;
1578 #ifndef DISABLE_SOCKET_TRANSPORT
1579 // FIXME: Move this somewhere else
1581 * Set TCP_NODELAY on the socket so the client receives events/command
1582 * results immediately.
1586 int result = setsockopt (conn_fd,
1591 g_assert (result >= 0);
1597 disconnected = FALSE;
1602 stop_debugger_thread (void)
1607 transport_close1 ();
1610 * Wait for the thread to exit.
1612 * If we continue with the shutdown without waiting for it, then the client might
1613 * not receive an answer to its last command like a resume.
1615 if (!is_debugger_thread ()) {
1617 mono_coop_mutex_lock (&debugger_thread_exited_mutex);
1618 if (!debugger_thread_exited)
1619 mono_coop_cond_wait (&debugger_thread_exited_cond, &debugger_thread_exited_mutex);
1620 mono_coop_mutex_unlock (&debugger_thread_exited_mutex);
1621 } while (!debugger_thread_exited);
1624 transport_close2 ();
1628 start_debugger_thread (void)
1630 debugger_thread_handle = mono_threads_create_thread (debugger_thread, NULL, 0, 0, NULL);
1631 g_assert (debugger_thread_handle);
1635 * Functions to decode protocol data
1639 decode_byte (guint8 *buf, guint8 **endbuf, guint8 *limit)
1642 g_assert (*endbuf <= limit);
1647 decode_int (guint8 *buf, guint8 **endbuf, guint8 *limit)
1650 g_assert (*endbuf <= limit);
1652 return (((int)buf [0]) << 24) | (((int)buf [1]) << 16) | (((int)buf [2]) << 8) | (((int)buf [3]) << 0);
1655 static inline gint64
1656 decode_long (guint8 *buf, guint8 **endbuf, guint8 *limit)
1658 guint32 high = decode_int (buf, &buf, limit);
1659 guint32 low = decode_int (buf, &buf, limit);
1663 return ((((guint64)high) << 32) | ((guint64)low));
1667 decode_id (guint8 *buf, guint8 **endbuf, guint8 *limit)
1669 return decode_int (buf, endbuf, limit);
1673 decode_string (guint8 *buf, guint8 **endbuf, guint8 *limit)
1675 int len = decode_int (buf, &buf, limit);
1683 s = (char *)g_malloc (len + 1);
1686 memcpy (s, buf, len);
1695 * Functions to encode protocol data
1699 buffer_init (Buffer *buf, int size)
1701 buf->buf = (guint8 *)g_malloc (size);
1703 buf->end = buf->buf + size;
1707 buffer_len (Buffer *buf)
1709 return buf->p - buf->buf;
1713 buffer_make_room (Buffer *buf, int size)
1715 if (buf->end - buf->p < size) {
1716 int new_size = buf->end - buf->buf + size + 32;
1717 guint8 *p = (guint8 *)g_realloc (buf->buf, new_size);
1718 size = buf->p - buf->buf;
1721 buf->end = buf->buf + new_size;
1726 buffer_add_byte (Buffer *buf, guint8 val)
1728 buffer_make_room (buf, 1);
1734 buffer_add_short (Buffer *buf, guint32 val)
1736 buffer_make_room (buf, 2);
1737 buf->p [0] = (val >> 8) & 0xff;
1738 buf->p [1] = (val >> 0) & 0xff;
1743 buffer_add_int (Buffer *buf, guint32 val)
1745 buffer_make_room (buf, 4);
1746 buf->p [0] = (val >> 24) & 0xff;
1747 buf->p [1] = (val >> 16) & 0xff;
1748 buf->p [2] = (val >> 8) & 0xff;
1749 buf->p [3] = (val >> 0) & 0xff;
1754 buffer_add_long (Buffer *buf, guint64 l)
1756 buffer_add_int (buf, (l >> 32) & 0xffffffff);
1757 buffer_add_int (buf, (l >> 0) & 0xffffffff);
1761 buffer_add_id (Buffer *buf, int id)
1763 buffer_add_int (buf, (guint64)id);
1767 buffer_add_data (Buffer *buf, guint8 *data, int len)
1769 buffer_make_room (buf, len);
1770 memcpy (buf->p, data, len);
1775 buffer_add_string (Buffer *buf, const char *str)
1780 buffer_add_int (buf, 0);
1783 buffer_add_int (buf, len);
1784 buffer_add_data (buf, (guint8*)str, len);
1789 buffer_add_buffer (Buffer *buf, Buffer *data)
1791 buffer_add_data (buf, data->buf, buffer_len (data));
1795 buffer_free (Buffer *buf)
1801 send_packet (int command_set, int command, Buffer *data)
1807 id = InterlockedIncrement (&packet_id);
1809 len = data->p - data->buf + 11;
1810 buffer_init (&buf, len);
1811 buffer_add_int (&buf, len);
1812 buffer_add_int (&buf, id);
1813 buffer_add_byte (&buf, 0); /* flags */
1814 buffer_add_byte (&buf, command_set);
1815 buffer_add_byte (&buf, command);
1816 memcpy (buf.buf + 11, data->buf, data->p - data->buf);
1818 res = transport_send (buf.buf, len);
1826 send_reply_packets (int npackets, ReplyPacket *packets)
1833 for (i = 0; i < npackets; ++i)
1834 len += buffer_len (packets [i].data) + 11;
1835 buffer_init (&buf, len);
1836 for (i = 0; i < npackets; ++i) {
1837 buffer_add_int (&buf, buffer_len (packets [i].data) + 11);
1838 buffer_add_int (&buf, packets [i].id);
1839 buffer_add_byte (&buf, 0x80); /* flags */
1840 buffer_add_byte (&buf, (packets [i].error >> 8) & 0xff);
1841 buffer_add_byte (&buf, packets [i].error);
1842 buffer_add_buffer (&buf, packets [i].data);
1845 res = transport_send (buf.buf, len);
1853 send_reply_packet (int id, int error, Buffer *data)
1857 memset (&packet, 0, sizeof (ReplyPacket));
1859 packet.error = error;
1862 return send_reply_packets (1, &packet);
1866 send_buffered_reply_packets (void)
1870 send_reply_packets (nreply_packets, reply_packets);
1871 for (i = 0; i < nreply_packets; ++i)
1872 buffer_free (reply_packets [i].data);
1873 DEBUG_PRINTF (1, "[dbg] Sent %d buffered reply packets [at=%lx].\n", nreply_packets, (long)mono_100ns_ticks () / 10000);
1878 buffer_reply_packet (int id, int error, Buffer *data)
1882 if (nreply_packets == 128)
1883 send_buffered_reply_packets ();
1885 p = &reply_packets [nreply_packets];
1888 p->data = g_new0 (Buffer, 1);
1889 buffer_init (p->data, buffer_len (data));
1890 buffer_add_buffer (p->data, data);
1899 * Represents an object accessible by the debugger client.
1902 /* Unique id used in the wire protocol to refer to objects */
1905 * A weakref gc handle pointing to the object. The gc handle is used to
1906 * detect if the object was garbage collected.
1911 /* Maps objid -> ObjRef */
1912 /* Protected by the loader lock */
1913 static GHashTable *objrefs;
1914 /* Protected by the loader lock */
1915 static GHashTable *obj_to_objref;
1916 /* Protected by the dbg lock */
1917 static MonoGHashTable *suspended_objs;
1920 free_objref (gpointer value)
1922 ObjRef *o = (ObjRef *)value;
1924 mono_gchandle_free (o->handle);
1932 objrefs = g_hash_table_new_full (NULL, NULL, NULL, free_objref);
1933 obj_to_objref = g_hash_table_new (NULL, NULL);
1934 suspended_objs = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_KEY_GC, MONO_ROOT_SOURCE_DEBUGGER, "suspended objects table");
1935 MONO_GC_REGISTER_ROOT_FIXED (suspended_objs, MONO_ROOT_SOURCE_DEBUGGER, "suspended objects table");
1939 objrefs_cleanup (void)
1941 g_hash_table_destroy (objrefs);
1946 * Return an ObjRef for OBJ.
1949 get_objref (MonoObject *obj)
1952 GSList *reflist = NULL, *l;
1958 if (suspend_count) {
1960 * Have to keep object refs created during suspensions alive for the duration of the suspension, so GCs during invokes don't collect them.
1963 mono_g_hash_table_insert (suspended_objs, obj, NULL);
1967 mono_loader_lock ();
1969 /* FIXME: The tables can grow indefinitely */
1971 if (mono_gc_is_moving ()) {
1973 * Objects can move, so use a hash table mapping hash codes to lists of
1974 * ObjRef structures.
1976 hash = mono_object_hash (obj);
1978 reflist = (GSList *)g_hash_table_lookup (obj_to_objref, GINT_TO_POINTER (hash));
1979 for (l = reflist; l; l = l->next) {
1980 ref = (ObjRef *)l->data;
1981 if (ref && mono_gchandle_get_target (ref->handle) == obj) {
1982 mono_loader_unlock ();
1987 /* Use a hash table with masked pointers to internalize object references */
1988 ref = (ObjRef *)g_hash_table_lookup (obj_to_objref, GINT_TO_POINTER (~((gsize)obj)));
1989 /* ref might refer to a different object with the same addr which was GCd */
1990 if (ref && mono_gchandle_get_target (ref->handle) == obj) {
1991 mono_loader_unlock ();
1996 ref = g_new0 (ObjRef, 1);
1997 ref->id = InterlockedIncrement (&objref_id);
1998 ref->handle = mono_gchandle_new_weakref (obj, FALSE);
2000 g_hash_table_insert (objrefs, GINT_TO_POINTER (ref->id), ref);
2002 if (mono_gc_is_moving ()) {
2003 reflist = g_slist_append (reflist, ref);
2004 g_hash_table_insert (obj_to_objref, GINT_TO_POINTER (hash), reflist);
2006 g_hash_table_insert (obj_to_objref, GINT_TO_POINTER (~((gsize)obj)), ref);
2009 mono_loader_unlock ();
2015 true_pred (gpointer key, gpointer value, gpointer user_data)
2021 clear_suspended_objs (void)
2024 mono_g_hash_table_foreach_remove (suspended_objs, true_pred, NULL);
2029 get_objid (MonoObject *obj)
2031 return get_objref (obj)->id;
2035 * Set OBJ to the object identified by OBJID.
2036 * Returns 0 or an error code if OBJID is invalid or the object has been garbage
2040 get_object_allow_null (int objid, MonoObject **obj)
2050 return ERR_INVALID_OBJECT;
2052 mono_loader_lock ();
2054 ref = (ObjRef *)g_hash_table_lookup (objrefs, GINT_TO_POINTER (objid));
2057 *obj = mono_gchandle_get_target (ref->handle);
2058 mono_loader_unlock ();
2060 return ERR_INVALID_OBJECT;
2063 mono_loader_unlock ();
2064 return ERR_INVALID_OBJECT;
2069 get_object (int objid, MonoObject **obj)
2071 ErrorCode err = get_object_allow_null (objid, obj);
2073 if (err != ERR_NONE)
2076 return ERR_INVALID_OBJECT;
2081 decode_objid (guint8 *buf, guint8 **endbuf, guint8 *limit)
2083 return decode_id (buf, endbuf, limit);
2087 buffer_add_objid (Buffer *buf, MonoObject *o)
2089 buffer_add_id (buf, get_objid (o));
2108 * Represents a runtime structure accessible to the debugger client
2111 /* Unique id used in the wire protocol */
2113 /* Domain of the runtime structure, NULL if the domain was unloaded */
2120 MonoAssembly *assembly;
2121 MonoClassField *field;
2123 MonoProperty *property;
2128 /* Maps runtime structure -> Id */
2129 /* Protected by the dbg lock */
2130 GHashTable *val_to_id [ID_NUM];
2131 /* Classes whose class load event has been sent */
2132 /* Protected by the loader lock */
2133 GHashTable *loaded_classes;
2134 /* Maps MonoClass->GPtrArray of file names */
2135 GHashTable *source_files;
2136 /* Maps source file basename -> GSList of classes */
2137 GHashTable *source_file_to_class;
2138 /* Same with ignore-case */
2139 GHashTable *source_file_to_class_ignorecase;
2143 /* Protected by the dbg lock */
2144 static GPtrArray *ids [ID_NUM];
2151 for (i = 0; i < ID_NUM; ++i)
2152 ids [i] = g_ptr_array_new ();
2160 for (i = 0; i < ID_NUM; ++i) {
2162 for (j = 0; j < ids [i]->len; ++j)
2163 g_free (g_ptr_array_index (ids [i], j));
2164 g_ptr_array_free (ids [i], TRUE);
2171 mono_debugger_agent_free_domain_info (MonoDomain *domain)
2173 AgentDomainInfo *info = (AgentDomainInfo *)domain_jit_info (domain)->agent_info;
2175 GHashTableIter iter;
2176 GPtrArray *file_names;
2181 for (i = 0; i < ID_NUM; ++i)
2182 if (info->val_to_id [i])
2183 g_hash_table_destroy (info->val_to_id [i]);
2184 g_hash_table_destroy (info->loaded_classes);
2186 g_hash_table_iter_init (&iter, info->source_files);
2187 while (g_hash_table_iter_next (&iter, NULL, (void**)&file_names)) {
2188 for (i = 0; i < file_names->len; ++i)
2189 g_free (g_ptr_array_index (file_names, i));
2190 g_ptr_array_free (file_names, TRUE);
2193 g_hash_table_iter_init (&iter, info->source_file_to_class);
2194 while (g_hash_table_iter_next (&iter, (void**)&basename, (void**)&l)) {
2199 g_hash_table_iter_init (&iter, info->source_file_to_class_ignorecase);
2200 while (g_hash_table_iter_next (&iter, (void**)&basename, (void**)&l)) {
2208 domain_jit_info (domain)->agent_info = NULL;
2210 /* Clear ids referencing structures in the domain */
2212 for (i = 0; i < ID_NUM; ++i) {
2214 for (j = 0; j < ids [i]->len; ++j) {
2215 Id *id = (Id *)g_ptr_array_index (ids [i], j);
2216 if (id->domain == domain)
2223 mono_loader_lock ();
2224 g_hash_table_remove (domains, domain);
2225 mono_loader_unlock ();
2228 static AgentDomainInfo*
2229 get_agent_domain_info (MonoDomain *domain)
2231 AgentDomainInfo *info = NULL;
2233 mono_domain_lock (domain);
2235 info = (AgentDomainInfo *)domain_jit_info (domain)->agent_info;
2237 info = g_new0 (AgentDomainInfo, 1);
2238 domain_jit_info (domain)->agent_info = info;
2239 info->loaded_classes = g_hash_table_new (mono_aligned_addr_hash, NULL);
2240 info->source_files = g_hash_table_new (mono_aligned_addr_hash, NULL);
2241 info->source_file_to_class = g_hash_table_new (g_str_hash, g_str_equal);
2242 info->source_file_to_class_ignorecase = g_hash_table_new (g_str_hash, g_str_equal);
2245 mono_domain_unlock (domain);
2251 get_id (MonoDomain *domain, IdType type, gpointer val)
2254 AgentDomainInfo *info;
2259 info = get_agent_domain_info (domain);
2263 if (info->val_to_id [type] == NULL)
2264 info->val_to_id [type] = g_hash_table_new (mono_aligned_addr_hash, NULL);
2266 id = (Id *)g_hash_table_lookup (info->val_to_id [type], val);
2272 id = g_new0 (Id, 1);
2274 id->id = ids [type]->len + 1;
2275 id->domain = domain;
2278 g_hash_table_insert (info->val_to_id [type], val, id);
2279 g_ptr_array_add (ids [type], id);
2286 static inline gpointer
2287 decode_ptr_id (guint8 *buf, guint8 **endbuf, guint8 *limit, IdType type, MonoDomain **domain, ErrorCode *err)
2291 int id = decode_id (buf, endbuf, limit);
2300 // FIXME: error handling
2302 g_assert (id > 0 && id <= ids [type]->len);
2304 res = (Id *)g_ptr_array_index (ids [type], GPOINTER_TO_INT (id - 1));
2307 if (res->domain == NULL) {
2308 DEBUG_PRINTF (1, "ERR_UNLOADED, id=%d, type=%d.\n", id, type);
2309 *err = ERR_UNLOADED;
2314 *domain = res->domain;
2316 return res->data.val;
2320 buffer_add_ptr_id (Buffer *buf, MonoDomain *domain, IdType type, gpointer val)
2322 int id = get_id (domain, type, val);
2324 buffer_add_id (buf, id);
2328 static inline MonoClass*
2329 decode_typeid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2333 klass = (MonoClass *)decode_ptr_id (buf, endbuf, limit, ID_TYPE, domain, err);
2334 if (G_UNLIKELY (log_level >= 2) && klass) {
2337 s = mono_type_full_name (&klass->byval_arg);
2338 DEBUG_PRINTF (2, "[dbg] recv class [%s]\n", s);
2344 static inline MonoAssembly*
2345 decode_assemblyid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2347 return (MonoAssembly *)decode_ptr_id (buf, endbuf, limit, ID_ASSEMBLY, domain, err);
2350 static inline MonoImage*
2351 decode_moduleid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2353 return (MonoImage *)decode_ptr_id (buf, endbuf, limit, ID_MODULE, domain, err);
2356 static inline MonoMethod*
2357 decode_methodid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2361 m = (MonoMethod *)decode_ptr_id (buf, endbuf, limit, ID_METHOD, domain, err);
2362 if (G_UNLIKELY (log_level >= 2) && m) {
2365 s = mono_method_full_name (m, TRUE);
2366 DEBUG_PRINTF (2, "[dbg] recv method [%s]\n", s);
2372 static inline MonoClassField*
2373 decode_fieldid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2375 return (MonoClassField *)decode_ptr_id (buf, endbuf, limit, ID_FIELD, domain, err);
2378 static inline MonoDomain*
2379 decode_domainid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2381 return (MonoDomain *)decode_ptr_id (buf, endbuf, limit, ID_DOMAIN, domain, err);
2384 static inline MonoProperty*
2385 decode_propertyid (guint8 *buf, guint8 **endbuf, guint8 *limit, MonoDomain **domain, ErrorCode *err)
2387 return (MonoProperty *)decode_ptr_id (buf, endbuf, limit, ID_PROPERTY, domain, err);
2391 buffer_add_typeid (Buffer *buf, MonoDomain *domain, MonoClass *klass)
2393 buffer_add_ptr_id (buf, domain, ID_TYPE, klass);
2394 if (G_UNLIKELY (log_level >= 2) && klass) {
2397 s = mono_type_full_name (&klass->byval_arg);
2398 if (is_debugger_thread ())
2399 DEBUG_PRINTF (2, "[dbg] send class [%s]\n", s);
2401 DEBUG_PRINTF (2, "[%p] send class [%s]\n", (gpointer) (gsize) mono_native_thread_id_get (), s);
2407 buffer_add_methodid (Buffer *buf, MonoDomain *domain, MonoMethod *method)
2409 buffer_add_ptr_id (buf, domain, ID_METHOD, method);
2410 if (G_UNLIKELY (log_level >= 2) && method) {
2413 s = mono_method_full_name (method, 1);
2414 DEBUG_PRINTF (2, "[dbg] send method [%s]\n", s);
2420 buffer_add_assemblyid (Buffer *buf, MonoDomain *domain, MonoAssembly *assembly)
2424 id = buffer_add_ptr_id (buf, domain, ID_ASSEMBLY, assembly);
2425 if (G_UNLIKELY (log_level >= 2) && assembly)
2426 DEBUG_PRINTF (2, "[dbg] send assembly [%s][%s][%d]\n", assembly->aname.name, domain->friendly_name, id);
2430 buffer_add_moduleid (Buffer *buf, MonoDomain *domain, MonoImage *image)
2432 buffer_add_ptr_id (buf, domain, ID_MODULE, image);
2436 buffer_add_fieldid (Buffer *buf, MonoDomain *domain, MonoClassField *field)
2438 buffer_add_ptr_id (buf, domain, ID_FIELD, field);
2442 buffer_add_propertyid (Buffer *buf, MonoDomain *domain, MonoProperty *property)
2444 buffer_add_ptr_id (buf, domain, ID_PROPERTY, property);
2448 buffer_add_domainid (Buffer *buf, MonoDomain *domain)
2450 buffer_add_ptr_id (buf, domain, ID_DOMAIN, domain);
2453 static void invoke_method (void);
2460 * save_thread_context:
2462 * Set CTX as the current threads context which is used for computing stack traces.
2463 * This function is signal-safe.
2466 save_thread_context (MonoContext *ctx)
2468 DebuggerTlsData *tls;
2470 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
2474 mono_thread_state_init_from_monoctx (&tls->context, ctx);
2476 mono_thread_state_init_from_current (&tls->context);
2479 /* Number of threads suspended */
2481 * If this is equal to the size of thread_to_tls, the runtime is considered
2484 static gint32 threads_suspend_count;
2486 static MonoCoopMutex suspend_mutex;
2488 /* Cond variable used to wait for suspend_count becoming 0 */
2489 static MonoCoopCond suspend_cond;
2491 /* Semaphore used to wait for a thread becoming suspended */
2492 static MonoCoopSem suspend_sem;
2497 mono_coop_mutex_init (&suspend_mutex);
2498 mono_coop_cond_init (&suspend_cond);
2499 mono_coop_sem_init (&suspend_sem, 0);
2504 StackFrameInfo last_frame;
2505 gboolean last_frame_set;
2509 } GetLastFrameUserData;
2512 get_last_frame (StackFrameInfo *info, MonoContext *ctx, gpointer user_data)
2514 GetLastFrameUserData *data = (GetLastFrameUserData *)user_data;
2516 if (info->type == FRAME_TYPE_MANAGED_TO_NATIVE || info->type == FRAME_TYPE_TRAMPOLINE)
2519 if (!data->last_frame_set) {
2520 /* Store the last frame */
2521 memcpy (&data->last_frame, info, sizeof (StackFrameInfo));
2522 data->last_frame_set = TRUE;
2525 /* Store the context/lmf for the frame above the last frame */
2526 memcpy (&data->ctx, ctx, sizeof (MonoContext));
2527 data->lmf = info->lmf;
2528 data->domain = info->domain;
2534 copy_unwind_state_from_frame_data (MonoThreadUnwindState *to, GetLastFrameUserData *data, gpointer jit_tls)
2536 memcpy (&to->ctx, &data->ctx, sizeof (MonoContext));
2538 to->unwind_data [MONO_UNWIND_DATA_DOMAIN] = data->domain;
2539 to->unwind_data [MONO_UNWIND_DATA_LMF] = data->lmf;
2540 to->unwind_data [MONO_UNWIND_DATA_JIT_TLS] = jit_tls;
2547 * Process interruption of a thread. This should be signal safe.
2549 * This always runs in the debugger thread.
2552 thread_interrupt (DebuggerTlsData *tls, MonoThreadInfo *info, MonoJitInfo *ji)
2555 MonoNativeThreadId tid;
2559 ip = MONO_CONTEXT_GET_IP (&mono_thread_info_get_suspend_state (info)->ctx);
2560 tid = mono_thread_info_get_tid (info);
2562 // FIXME: Races when the thread leaves managed code before hitting a single step
2565 if (ji && !ji->is_trampoline) {
2566 /* Running managed code, will be suspended by the single step code */
2567 DEBUG_PRINTF (1, "[%p] Received interrupt while at %s(%p), continuing.\n", (gpointer)(gsize)tid, jinfo_get_method (ji)->name, ip);
2570 * Running native code, will be suspended when it returns to/enters
2571 * managed code. Treat it as already suspended.
2572 * This might interrupt the code in process_single_step_inner (), we use the
2573 * tls->suspending flag to avoid races when that happens.
2575 if (!tls->suspended && !tls->suspending) {
2576 GetLastFrameUserData data;
2578 // FIXME: printf is not signal safe, but this is only used during
2579 // debugger debugging
2581 DEBUG_PRINTF (1, "[%p] Received interrupt while at %p, treating as suspended.\n", (gpointer)(gsize)tid, ip);
2582 //save_thread_context (&ctx);
2585 /* Already terminated */
2589 * We are in a difficult position: we want to be able to provide stack
2590 * traces for this thread, but we can't use the current ctx+lmf, since
2591 * the thread is still running, so it might return to managed code,
2592 * making these invalid.
2593 * So we start a stack walk and save the first frame, along with the
2594 * parent frame's ctx+lmf. This (hopefully) works because the thread will be
2595 * suspended when it returns to managed code, so the parent's ctx should
2598 data.last_frame_set = FALSE;
2599 mono_get_eh_callbacks ()->mono_walk_stack_with_state (get_last_frame, mono_thread_info_get_suspend_state (info), MONO_UNWIND_SIGNAL_SAFE, &data);
2600 if (data.last_frame_set) {
2601 gpointer jit_tls = ((MonoThreadInfo*)tls->thread->thread_info)->jit_data;
2603 memcpy (&tls->async_last_frame, &data.last_frame, sizeof (StackFrameInfo));
2605 copy_unwind_state_from_frame_data (&tls->async_state, &data, jit_tls);
2606 copy_unwind_state_from_frame_data (&tls->context, &data, jit_tls);
2608 tls->async_state.valid = FALSE;
2611 mono_memory_barrier ();
2613 tls->suspended = TRUE;
2614 mono_coop_sem_post (&suspend_sem);
2620 * reset_native_thread_suspend_state:
2622 * Reset the suspended flag and state on native threads
2625 reset_native_thread_suspend_state (gpointer key, gpointer value, gpointer user_data)
2627 DebuggerTlsData *tls = (DebuggerTlsData *)value;
2629 if (!tls->really_suspended && tls->suspended) {
2630 tls->suspended = FALSE;
2632 * The thread might still be running if it was executing native code, so the state won't be invalided by
2633 * suspend_current ().
2635 tls->context.valid = FALSE;
2636 tls->async_state.valid = FALSE;
2637 invalidate_frames (tls);
2642 DebuggerTlsData *tls;
2643 gboolean valid_info;
2646 static SuspendThreadResult
2647 debugger_interrupt_critical (MonoThreadInfo *info, gpointer user_data)
2649 InterruptData *data = (InterruptData *)user_data;
2652 data->valid_info = TRUE;
2653 ji = mono_jit_info_table_find_internal (
2654 (MonoDomain *)mono_thread_info_get_suspend_state (info)->unwind_data [MONO_UNWIND_DATA_DOMAIN],
2655 (char *)MONO_CONTEXT_GET_IP (&mono_thread_info_get_suspend_state (info)->ctx),
2659 /* This is signal safe */
2660 thread_interrupt (data->tls, info, ji);
2661 return MonoResumeThread;
2667 * Notify a thread that it needs to suspend.
2670 notify_thread (gpointer key, gpointer value, gpointer user_data)
2672 MonoInternalThread *thread = (MonoInternalThread *)key;
2673 DebuggerTlsData *tls = (DebuggerTlsData *)value;
2674 MonoNativeThreadId tid = MONO_UINT_TO_NATIVE_THREAD_ID (thread->tid);
2676 if (mono_native_thread_id_equals (mono_native_thread_id_get (), tid) || tls->terminated)
2679 DEBUG_PRINTF (1, "[%p] Interrupting %p...\n", (gpointer) (gsize) mono_native_thread_id_get (), (gpointer)tid);
2681 /* This is _not_ equivalent to ves_icall_System_Threading_Thread_Abort () */
2682 InterruptData interrupt_data = { 0 };
2683 interrupt_data.tls = tls;
2685 mono_thread_info_safe_suspend_and_run ((MonoNativeThreadId)(gpointer)(gsize)thread->tid, FALSE, debugger_interrupt_critical, &interrupt_data);
2686 if (!interrupt_data.valid_info) {
2687 DEBUG_PRINTF (1, "[%p] mono_thread_info_suspend_sync () failed for %p...\n", (gpointer) (gsize) mono_native_thread_id_get (), (gpointer)tid);
2689 * Attached thread which died without detaching.
2691 tls->terminated = TRUE;
2696 process_suspend (DebuggerTlsData *tls, MonoContext *ctx)
2698 guint8 *ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
2702 if (mono_loader_lock_is_owned_by_self ()) {
2704 * Shortcut for the check in suspend_current (). This speeds up processing
2705 * when executing long running code inside the loader lock, i.e. assembly load
2711 if (is_debugger_thread ())
2714 /* Prevent races with mono_debugger_agent_thread_interrupt () */
2715 if (suspend_count - tls->resume_count > 0)
2716 tls->suspending = TRUE;
2718 DEBUG_PRINTF (1, "[%p] Received single step event for suspending.\n", (gpointer) (gsize) mono_native_thread_id_get ());
2720 if (suspend_count - tls->resume_count == 0) {
2722 * We are executing a single threaded invoke but the single step for
2723 * suspending is still active.
2724 * FIXME: This slows down single threaded invokes.
2726 DEBUG_PRINTF (1, "[%p] Ignored during single threaded invoke.\n", (gpointer) (gsize) mono_native_thread_id_get ());
2730 ji = mini_jit_info_table_find (mono_domain_get (), (char*)ip, NULL);
2732 /* Can't suspend in these methods */
2733 method = jinfo_get_method (ji);
2734 if (method->klass == mono_defaults.string_class && (!strcmp (method->name, "memset") || strstr (method->name, "memcpy")))
2737 save_thread_context (ctx);
2745 * Increase the suspend count of the VM. While the suspend count is greater
2746 * than 0, runtime threads are suspended at certain points during execution.
2751 mono_loader_lock ();
2753 mono_coop_mutex_lock (&suspend_mutex);
2757 DEBUG_PRINTF (1, "[%p] Suspending vm...\n", (gpointer) (gsize) mono_native_thread_id_get ());
2759 if (suspend_count == 1) {
2760 // FIXME: Is it safe to call this inside the lock ?
2761 start_single_stepping ();
2762 mono_g_hash_table_foreach (thread_to_tls, notify_thread, NULL);
2765 mono_coop_mutex_unlock (&suspend_mutex);
2767 if (suspend_count == 1)
2769 * Suspend creation of new threadpool threads, since they cannot run
2771 mono_threadpool_ms_suspend ();
2773 mono_loader_unlock ();
2779 * Decrease the suspend count of the VM. If the count reaches 0, runtime threads
2787 g_assert (is_debugger_thread ());
2789 mono_loader_lock ();
2791 mono_coop_mutex_lock (&suspend_mutex);
2793 g_assert (suspend_count > 0);
2796 DEBUG_PRINTF (1, "[%p] Resuming vm, suspend count=%d...\n", (gpointer) (gsize) mono_native_thread_id_get (), suspend_count);
2798 if (suspend_count == 0) {
2799 // FIXME: Is it safe to call this inside the lock ?
2800 stop_single_stepping ();
2801 mono_g_hash_table_foreach (thread_to_tls, reset_native_thread_suspend_state, NULL);
2804 /* Signal this even when suspend_count > 0, since some threads might have resume_count > 0 */
2805 err = mono_coop_cond_broadcast (&suspend_cond);
2806 g_assert (err == 0);
2808 mono_coop_mutex_unlock (&suspend_mutex);
2809 //g_assert (err == 0);
2811 if (suspend_count == 0)
2812 mono_threadpool_ms_resume ();
2814 mono_loader_unlock ();
2820 * Resume just one thread.
2823 resume_thread (MonoInternalThread *thread)
2826 DebuggerTlsData *tls;
2828 g_assert (is_debugger_thread ());
2830 mono_loader_lock ();
2832 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
2835 mono_coop_mutex_lock (&suspend_mutex);
2837 g_assert (suspend_count > 0);
2839 DEBUG_PRINTF (1, "[sdb] Resuming thread %p...\n", (gpointer)(gssize)thread->tid);
2841 tls->resume_count += suspend_count;
2844 * Signal suspend_count without decreasing suspend_count, the threads will wake up
2845 * but only the one whose resume_count field is > 0 will be resumed.
2847 err = mono_coop_cond_broadcast (&suspend_cond);
2848 g_assert (err == 0);
2850 mono_coop_mutex_unlock (&suspend_mutex);
2851 //g_assert (err == 0);
2853 mono_loader_unlock ();
2857 free_frames (StackFrame **frames, int nframes)
2861 for (i = 0; i < nframes; ++i) {
2862 if (frames [i]->jit)
2863 mono_debug_free_method_jit_info (frames [i]->jit);
2864 g_free (frames [i]);
2870 invalidate_frames (DebuggerTlsData *tls)
2873 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
2876 free_frames (tls->frames, tls->frame_count);
2877 tls->frame_count = 0;
2880 free_frames (tls->restore_frames, tls->restore_frame_count);
2881 tls->restore_frame_count = 0;
2882 tls->restore_frames = NULL;
2888 * Suspend the current thread until the runtime is resumed. If the thread has a
2889 * pending invoke, then the invoke is executed before this function returns.
2892 suspend_current (void)
2894 DebuggerTlsData *tls;
2897 g_assert (!is_debugger_thread ());
2899 if (mono_loader_lock_is_owned_by_self ()) {
2901 * If we own the loader mutex, can't suspend until we release it, since the
2902 * whole runtime can deadlock otherwise.
2907 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
2910 mono_coop_mutex_lock (&suspend_mutex);
2912 tls->suspending = FALSE;
2913 tls->really_suspended = TRUE;
2915 if (!tls->suspended) {
2916 tls->suspended = TRUE;
2917 mono_coop_sem_post (&suspend_sem);
2920 DEBUG_PRINTF (1, "[%p] Suspended.\n", (gpointer) (gsize) mono_native_thread_id_get ());
2922 while (suspend_count - tls->resume_count > 0) {
2923 err = mono_coop_cond_wait (&suspend_cond, &suspend_mutex);
2924 g_assert (err == 0);
2927 tls->suspended = FALSE;
2928 tls->really_suspended = FALSE;
2930 threads_suspend_count --;
2932 mono_coop_mutex_unlock (&suspend_mutex);
2934 DEBUG_PRINTF (1, "[%p] Resumed.\n", (gpointer) (gsize) mono_native_thread_id_get ());
2936 if (tls->pending_invoke) {
2937 /* Save the original context */
2938 tls->pending_invoke->has_ctx = TRUE;
2939 tls->pending_invoke->ctx = tls->context.ctx;
2944 /* The frame info becomes invalid after a resume */
2945 tls->context.valid = FALSE;
2946 tls->async_state.valid = FALSE;
2947 invalidate_frames (tls);
2951 count_thread (gpointer key, gpointer value, gpointer user_data)
2953 DebuggerTlsData *tls = (DebuggerTlsData *)value;
2955 if (!tls->suspended && !tls->terminated)
2956 *(int*)user_data = *(int*)user_data + 1;
2960 count_threads_to_wait_for (void)
2964 mono_loader_lock ();
2965 mono_g_hash_table_foreach (thread_to_tls, count_thread, &count);
2966 mono_loader_unlock ();
2974 * Wait until the runtime is completely suspended.
2977 wait_for_suspend (void)
2979 int nthreads, nwait, err;
2980 gboolean waited = FALSE;
2982 // FIXME: Threads starting/stopping ?
2983 mono_loader_lock ();
2984 nthreads = mono_g_hash_table_size (thread_to_tls);
2985 mono_loader_unlock ();
2988 nwait = count_threads_to_wait_for ();
2990 DEBUG_PRINTF (1, "Waiting for %d(%d) threads to suspend...\n", nwait, nthreads);
2991 err = mono_coop_sem_wait (&suspend_sem, MONO_SEM_FLAGS_NONE);
2992 g_assert (err == 0);
3000 DEBUG_PRINTF (1, "%d threads suspended.\n", nthreads);
3006 * Return whenever the runtime is suspended.
3011 return count_threads_to_wait_for () == 0;
3015 no_seq_points_found (MonoMethod *method, int offset)
3018 * This can happen in full-aot mode with assemblies AOTed without the 'soft-debug' option to save space.
3020 printf ("Unable to find seq points for method '%s', offset 0x%x.\n", mono_method_full_name (method, TRUE), offset);
3024 DebuggerTlsData *tls;
3026 } ComputeFramesUserData;
3029 process_frame (StackFrameInfo *info, MonoContext *ctx, gpointer user_data)
3031 ComputeFramesUserData *ud = (ComputeFramesUserData *)user_data;
3033 MonoMethod *method, *actual_method, *api_method;
3037 if (info->type != FRAME_TYPE_MANAGED) {
3038 if (info->type == FRAME_TYPE_DEBUGGER_INVOKE) {
3039 /* Mark the last frame as an invoke frame */
3041 ((StackFrame*)g_slist_last (ud->frames)->data)->flags |= FRAME_FLAG_DEBUGGER_INVOKE;
3047 method = jinfo_get_method (info->ji);
3049 method = info->method;
3050 actual_method = info->actual_method;
3051 api_method = method;
3056 if (!method || (method->wrapper_type && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD && method->wrapper_type != MONO_WRAPPER_MANAGED_TO_NATIVE))
3059 if (info->il_offset == -1) {
3060 /* mono_debug_il_offset_from_address () doesn't seem to be precise enough (#2092) */
3061 if (ud->frames == NULL) {
3062 if (mono_find_prev_seq_point_for_native_offset (info->domain, method, info->native_offset, NULL, &sp))
3063 info->il_offset = sp.il_offset;
3065 if (info->il_offset == -1)
3066 info->il_offset = mono_debug_il_offset_from_address (method, info->domain, info->native_offset);
3069 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);
3071 if (method->wrapper_type == MONO_WRAPPER_MANAGED_TO_NATIVE) {
3072 if (!CHECK_PROTOCOL_VERSION (2, 17))
3073 /* Older clients can't handle this flag */
3075 api_method = mono_marshal_method_from_wrapper (method);
3078 actual_method = api_method;
3079 flags |= FRAME_FLAG_NATIVE_TRANSITION;
3082 frame = g_new0 (StackFrame, 1);
3083 frame->method = method;
3084 frame->actual_method = actual_method;
3085 frame->api_method = api_method;
3086 frame->il_offset = info->il_offset;
3087 frame->native_offset = info->native_offset;
3088 frame->flags = flags;
3089 frame->ji = info->ji;
3090 if (info->reg_locations)
3091 memcpy (frame->reg_locations, info->reg_locations, MONO_MAX_IREGS * sizeof (mgreg_t*));
3094 frame->has_ctx = TRUE;
3096 frame->domain = info->domain;
3098 ud->frames = g_slist_append (ud->frames, frame);
3104 process_filter_frame (StackFrameInfo *info, MonoContext *ctx, gpointer user_data)
3106 ComputeFramesUserData *ud = (ComputeFramesUserData *)user_data;
3109 * 'tls->filter_ctx' is the location of the throw site.
3111 * mono_walk_stack() will never actually hit the throw site, but unwind
3112 * directly from the filter to the call site; we abort stack unwinding here
3113 * once this happens and resume from the throw site.
3116 if (MONO_CONTEXT_GET_SP (ctx) >= MONO_CONTEXT_GET_SP (&ud->tls->filter_state.ctx))
3119 return process_frame (info, ctx, user_data);
3123 * Return a malloc-ed list of StackFrame structures.
3126 compute_frame_info_from (MonoInternalThread *thread, DebuggerTlsData *tls, MonoThreadUnwindState *state, int *out_nframes)
3128 ComputeFramesUserData user_data;
3129 MonoUnwindOptions opts = (MonoUnwindOptions)(MONO_UNWIND_DEFAULT | MONO_UNWIND_REG_LOCATIONS);
3134 user_data.tls = tls;
3135 user_data.frames = NULL;
3137 mono_walk_stack_with_state (process_frame, state, opts, &user_data);
3139 nframes = g_slist_length (user_data.frames);
3140 res = g_new0 (StackFrame*, nframes);
3141 l = user_data.frames;
3142 for (i = 0; i < nframes; ++i) {
3143 res [i] = (StackFrame *)l->data;
3146 *out_nframes = nframes;
3152 compute_frame_info (MonoInternalThread *thread, DebuggerTlsData *tls)
3154 ComputeFramesUserData user_data;
3156 int i, findex, new_frame_count;
3157 StackFrame **new_frames, *f;
3158 MonoUnwindOptions opts = (MonoUnwindOptions)(MONO_UNWIND_DEFAULT | MONO_UNWIND_REG_LOCATIONS);
3160 // FIXME: Locking on tls
3161 if (tls->frames && tls->frames_up_to_date)
3164 DEBUG_PRINTF (1, "Frames for %p(tid=%lx):\n", thread, (glong)thread->tid);
3166 user_data.tls = tls;
3167 user_data.frames = NULL;
3168 if (tls->terminated) {
3169 tls->frame_count = 0;
3171 } if (!tls->really_suspended && tls->async_state.valid) {
3172 /* Have to use the state saved by the signal handler */
3173 process_frame (&tls->async_last_frame, NULL, &user_data);
3174 mono_walk_stack_with_state (process_frame, &tls->async_state, opts, &user_data);
3175 } else if (tls->filter_state.valid) {
3177 * We are inside an exception filter.
3179 * First we add all the frames from inside the filter; 'tls->ctx' has the current context.
3181 if (tls->context.valid)
3182 mono_walk_stack_with_state (process_filter_frame, &tls->context, opts, &user_data);
3184 * After that, we resume unwinding from the location where the exception has been thrown.
3186 mono_walk_stack_with_state (process_frame, &tls->filter_state, opts, &user_data);
3187 } else if (tls->context.valid) {
3188 mono_walk_stack_with_state (process_frame, &tls->context, opts, &user_data);
3191 tls->frame_count = 0;
3195 new_frame_count = g_slist_length (user_data.frames);
3196 new_frames = g_new0 (StackFrame*, new_frame_count);
3198 for (tmp = user_data.frames; tmp; tmp = tmp->next) {
3199 f = (StackFrame *)tmp->data;
3202 * Reuse the id for already existing stack frames, so invokes don't invalidate
3203 * the still valid stack frames.
3205 for (i = 0; i < tls->frame_count; ++i) {
3206 if (MONO_CONTEXT_GET_SP (&tls->frames [i]->ctx) == MONO_CONTEXT_GET_SP (&f->ctx)) {
3207 f->id = tls->frames [i]->id;
3212 if (i >= tls->frame_count)
3213 f->id = InterlockedIncrement (&frame_id);
3215 new_frames [findex ++] = f;
3218 g_slist_free (user_data.frames);
3220 invalidate_frames (tls);
3222 tls->frames = new_frames;
3223 tls->frame_count = new_frame_count;
3224 tls->frames_up_to_date = TRUE;
3228 * GHFunc to emit an appdomain creation event
3229 * @param key Don't care
3230 * @param value A loaded appdomain
3231 * @param user_data Don't care
3234 emit_appdomain_load (gpointer key, gpointer value, gpointer user_data)
3236 process_profiler_event (EVENT_KIND_APPDOMAIN_CREATE, value);
3237 g_hash_table_foreach (get_agent_domain_info ((MonoDomain *)value)->loaded_classes, emit_type_load, NULL);
3241 * GHFunc to emit a thread start event
3242 * @param key A thread id
3243 * @param value A thread object
3244 * @param user_data Don't care
3247 emit_thread_start (gpointer key, gpointer value, gpointer user_data)
3249 if (!mono_native_thread_id_equals (MONO_UINT_TO_NATIVE_THREAD_ID (GPOINTER_TO_UINT (key)), debugger_thread_id))
3250 process_profiler_event (EVENT_KIND_THREAD_START, value);
3254 * GFunc to emit an assembly load event
3255 * @param value A loaded assembly
3256 * @param user_data Don't care
3259 emit_assembly_load (gpointer value, gpointer user_data)
3261 process_profiler_event (EVENT_KIND_ASSEMBLY_LOAD, value);
3265 * GFunc to emit a type load event
3266 * @param value A loaded type
3267 * @param user_data Don't care
3270 emit_type_load (gpointer key, gpointer value, gpointer user_data)
3272 process_profiler_event (EVENT_KIND_TYPE_LOAD, value);
3276 strdup_tolower (char *s)
3281 for (p = s2; *p; ++p)
3287 * Same as g_path_get_basename () but handles windows paths as well,
3288 * which can occur in .mdb files created by pdb2mdb.
3291 dbg_path_get_basename (const char *filename)
3295 if (!filename || strchr (filename, '/') || !strchr (filename, '\\'))
3296 return g_path_get_basename (filename);
3300 /* No separator -> filename */
3301 r = strrchr (filename, '\\');
3303 return g_strdup (filename);
3305 /* Trailing slash, remove component */
3307 char *copy = g_strdup (filename);
3308 copy [r-filename] = 0;
3309 r = strrchr (copy, '\\');
3313 return g_strdup ("/");
3315 r = g_strdup (&r[1]);
3320 return g_strdup (&r[1]);
3324 init_jit_info_dbg_attrs (MonoJitInfo *ji)
3326 static MonoClass *hidden_klass, *step_through_klass, *non_user_klass;
3328 MonoCustomAttrInfo *ainfo;
3330 if (ji->dbg_attrs_inited)
3334 hidden_klass = mono_class_load_from_name (mono_defaults.corlib, "System.Diagnostics", "DebuggerHiddenAttribute");
3336 if (!step_through_klass)
3337 step_through_klass = mono_class_load_from_name (mono_defaults.corlib, "System.Diagnostics", "DebuggerStepThroughAttribute");
3339 if (!non_user_klass)
3340 non_user_klass = mono_class_load_from_name (mono_defaults.corlib, "System.Diagnostics", "DebuggerNonUserCodeAttribute");
3342 ainfo = mono_custom_attrs_from_method_checked (jinfo_get_method (ji), &error);
3343 mono_error_cleanup (&error); /* FIXME don't swallow the error? */
3345 if (mono_custom_attrs_has_attr (ainfo, hidden_klass))
3346 ji->dbg_hidden = TRUE;
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 ainfo = mono_custom_attrs_from_class_checked (jinfo_get_method (ji)->klass, &error);
3355 mono_error_cleanup (&error); /* FIXME don't swallow the error? */
3357 if (mono_custom_attrs_has_attr (ainfo, step_through_klass))
3358 ji->dbg_step_through = TRUE;
3359 if (mono_custom_attrs_has_attr (ainfo, non_user_klass))
3360 ji->dbg_non_user_code = TRUE;
3361 mono_custom_attrs_free (ainfo);
3364 mono_memory_barrier ();
3365 ji->dbg_attrs_inited = TRUE;
3373 * create_event_list:
3375 * Return a list of event request ids matching EVENT, starting from REQS, which
3376 * can be NULL to include all event requests. Set SUSPEND_POLICY to the suspend
3378 * We return request ids, instead of requests, to simplify threading, since
3379 * requests could be deleted anytime when the loader lock is not held.
3380 * LOCKING: Assumes the loader lock is held.
3383 create_event_list (EventKind event, GPtrArray *reqs, MonoJitInfo *ji, EventInfo *ei, int *suspend_policy)
3386 GSList *events = NULL;
3388 *suspend_policy = SUSPEND_POLICY_NONE;
3391 reqs = event_requests;
3396 for (i = 0; i < reqs->len; ++i) {
3397 EventRequest *req = (EventRequest *)g_ptr_array_index (reqs, i);
3398 if (req->event_kind == event) {
3399 gboolean filtered = FALSE;
3402 for (j = 0; j < req->nmodifiers; ++j) {
3403 Modifier *mod = &req->modifiers [j];
3405 if (mod->kind == MOD_KIND_COUNT) {
3407 if (mod->data.count > 0) {
3408 if (mod->data.count > 0) {
3410 if (mod->data.count == 0)
3414 } else if (mod->kind == MOD_KIND_THREAD_ONLY) {
3415 if (mod->data.thread != mono_thread_internal_current ())
3417 } else if (mod->kind == MOD_KIND_EXCEPTION_ONLY && ei) {
3418 if (mod->data.exc_class && mod->subclasses && !mono_class_is_assignable_from (mod->data.exc_class, ei->exc->vtable->klass))
3420 if (mod->data.exc_class && !mod->subclasses && mod->data.exc_class != ei->exc->vtable->klass)
3422 if (ei->caught && !mod->caught)
3424 if (!ei->caught && !mod->uncaught)
3426 } else if (mod->kind == MOD_KIND_ASSEMBLY_ONLY && ji) {
3428 gboolean found = FALSE;
3429 MonoAssembly **assemblies = mod->data.assemblies;
3432 for (k = 0; assemblies [k]; ++k)
3433 if (assemblies [k] == jinfo_get_method (ji)->klass->image->assembly)
3438 } else if (mod->kind == MOD_KIND_SOURCE_FILE_ONLY && ei && ei->klass) {
3439 gpointer iter = NULL;
3441 MonoDebugSourceInfo *sinfo;
3442 char *source_file, *s;
3443 gboolean found = FALSE;
3445 GPtrArray *source_file_list;
3447 while ((method = mono_class_get_methods (ei->klass, &iter))) {
3448 MonoDebugMethodInfo *minfo = mono_debug_lookup_method (method);
3451 mono_debug_get_seq_points (minfo, &source_file, &source_file_list, NULL, NULL, NULL);
3452 for (i = 0; i < source_file_list->len; ++i) {
3453 sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, i);
3455 * Do a case-insesitive match by converting the file name to
3458 s = strdup_tolower (sinfo->source_file);
3459 if (g_hash_table_lookup (mod->data.source_files, s))
3462 char *s2 = dbg_path_get_basename (sinfo->source_file);
3463 char *s3 = strdup_tolower (s2);
3465 if (g_hash_table_lookup (mod->data.source_files, s3))
3472 g_ptr_array_free (source_file_list, TRUE);
3477 } else if (mod->kind == MOD_KIND_TYPE_NAME_ONLY && ei && ei->klass) {
3480 s = mono_type_full_name (&ei->klass->byval_arg);
3481 if (!g_hash_table_lookup (mod->data.type_names, s))
3484 } else if (mod->kind == MOD_KIND_STEP) {
3485 if ((mod->data.filter & STEP_FILTER_STATIC_CTOR) && ji &&
3486 (jinfo_get_method (ji)->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
3487 !strcmp (jinfo_get_method (ji)->name, ".cctor") &&
3488 (jinfo_get_method (ji) != ((SingleStepReq*)req->info)->start_method))
3490 if ((mod->data.filter & STEP_FILTER_DEBUGGER_HIDDEN) && ji) {
3491 init_jit_info_dbg_attrs (ji);
3495 if ((mod->data.filter & STEP_FILTER_DEBUGGER_STEP_THROUGH) && ji) {
3496 init_jit_info_dbg_attrs (ji);
3497 if (ji->dbg_step_through)
3500 if ((mod->data.filter & STEP_FILTER_DEBUGGER_NON_USER_CODE) && ji) {
3501 init_jit_info_dbg_attrs (ji);
3502 if (ji->dbg_non_user_code)
3509 *suspend_policy = MAX (*suspend_policy, req->suspend_policy);
3510 events = g_slist_append (events, GINT_TO_POINTER (req->id));
3515 /* Send a VM START/DEATH event by default */
3516 if (event == EVENT_KIND_VM_START)
3517 events = g_slist_append (events, GINT_TO_POINTER (0));
3518 if (event == EVENT_KIND_VM_DEATH)
3519 events = g_slist_append (events, GINT_TO_POINTER (0));
3524 static G_GNUC_UNUSED const char*
3525 event_to_string (EventKind event)
3528 case EVENT_KIND_VM_START: return "VM_START";
3529 case EVENT_KIND_VM_DEATH: return "VM_DEATH";
3530 case EVENT_KIND_THREAD_START: return "THREAD_START";
3531 case EVENT_KIND_THREAD_DEATH: return "THREAD_DEATH";
3532 case EVENT_KIND_APPDOMAIN_CREATE: return "APPDOMAIN_CREATE";
3533 case EVENT_KIND_APPDOMAIN_UNLOAD: return "APPDOMAIN_UNLOAD";
3534 case EVENT_KIND_METHOD_ENTRY: return "METHOD_ENTRY";
3535 case EVENT_KIND_METHOD_EXIT: return "METHOD_EXIT";
3536 case EVENT_KIND_ASSEMBLY_LOAD: return "ASSEMBLY_LOAD";
3537 case EVENT_KIND_ASSEMBLY_UNLOAD: return "ASSEMBLY_UNLOAD";
3538 case EVENT_KIND_BREAKPOINT: return "BREAKPOINT";
3539 case EVENT_KIND_STEP: return "STEP";
3540 case EVENT_KIND_TYPE_LOAD: return "TYPE_LOAD";
3541 case EVENT_KIND_EXCEPTION: return "EXCEPTION";
3542 case EVENT_KIND_KEEPALIVE: return "KEEPALIVE";
3543 case EVENT_KIND_USER_BREAK: return "USER_BREAK";
3544 case EVENT_KIND_USER_LOG: return "USER_LOG";
3546 g_assert_not_reached ();
3554 * Send an event to the client, suspending the vm if needed.
3555 * LOCKING: Since this can suspend the calling thread, no locks should be held
3557 * The EVENTS list is freed by this function.
3560 process_event (EventKind event, gpointer arg, gint32 il_offset, MonoContext *ctx, GSList *events, int suspend_policy)
3564 MonoDomain *domain = mono_domain_get ();
3565 MonoThread *thread = NULL;
3566 MonoObject *keepalive_obj = NULL;
3567 gboolean send_success = FALSE;
3572 DEBUG_PRINTF (2, "Debugger agent not initialized yet: dropping %s\n", event_to_string (event));
3576 if (!vm_start_event_sent && event != EVENT_KIND_VM_START) {
3577 // FIXME: We miss those events
3578 DEBUG_PRINTF (2, "VM start event not sent yet: dropping %s\n", event_to_string (event));
3582 if (vm_death_event_sent) {
3583 DEBUG_PRINTF (2, "VM death event has been sent: dropping %s\n", event_to_string (event));
3587 if (mono_runtime_is_shutting_down () && event != EVENT_KIND_VM_DEATH) {
3588 DEBUG_PRINTF (2, "Mono runtime is shutting down: dropping %s\n", event_to_string (event));
3593 DEBUG_PRINTF (2, "Debugger client is not connected: dropping %s\n", event_to_string (event));
3597 if (event == EVENT_KIND_KEEPALIVE)
3598 suspend_policy = SUSPEND_POLICY_NONE;
3603 if (agent_config.defer) {
3604 /* Make sure the thread id is always set when doing deferred debugging */
3605 if (is_debugger_thread ()) {
3606 /* Don't suspend on events from the debugger thread */
3607 suspend_policy = SUSPEND_POLICY_NONE;
3608 thread = mono_thread_get_main ();
3610 else thread = mono_thread_current ();
3612 if (is_debugger_thread () && event != EVENT_KIND_VM_DEATH)
3613 // FIXME: Send these with a NULL thread, don't suspend the current thread
3618 nevents = g_slist_length (events);
3619 buffer_init (&buf, 128);
3620 buffer_add_byte (&buf, suspend_policy);
3621 buffer_add_int (&buf, nevents);
3623 for (l = events; l; l = l->next) {
3624 buffer_add_byte (&buf, event); // event kind
3625 buffer_add_int (&buf, GPOINTER_TO_INT (l->data)); // request id
3630 thread = mono_thread_current ();
3632 if (event == EVENT_KIND_VM_START && arg != NULL)
3633 thread = (MonoThread *)arg;
3635 buffer_add_objid (&buf, (MonoObject*)thread); // thread
3638 case EVENT_KIND_THREAD_START:
3639 case EVENT_KIND_THREAD_DEATH:
3641 case EVENT_KIND_APPDOMAIN_CREATE:
3642 case EVENT_KIND_APPDOMAIN_UNLOAD:
3643 buffer_add_domainid (&buf, (MonoDomain *)arg);
3645 case EVENT_KIND_METHOD_ENTRY:
3646 case EVENT_KIND_METHOD_EXIT:
3647 buffer_add_methodid (&buf, domain, (MonoMethod *)arg);
3649 case EVENT_KIND_ASSEMBLY_LOAD:
3650 buffer_add_assemblyid (&buf, domain, (MonoAssembly *)arg);
3652 case EVENT_KIND_ASSEMBLY_UNLOAD: {
3653 DebuggerTlsData *tls;
3655 /* The domain the assembly belonged to is not equal to the current domain */
3656 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3658 g_assert (tls->domain_unloading);
3660 buffer_add_assemblyid (&buf, tls->domain_unloading, (MonoAssembly *)arg);
3663 case EVENT_KIND_TYPE_LOAD:
3664 buffer_add_typeid (&buf, domain, (MonoClass *)arg);
3666 case EVENT_KIND_BREAKPOINT:
3667 case EVENT_KIND_STEP:
3668 buffer_add_methodid (&buf, domain, (MonoMethod *)arg);
3669 buffer_add_long (&buf, il_offset);
3671 case EVENT_KIND_VM_START:
3672 buffer_add_domainid (&buf, mono_get_root_domain ());
3674 case EVENT_KIND_VM_DEATH:
3675 if (CHECK_PROTOCOL_VERSION (2, 27))
3676 buffer_add_int (&buf, mono_environment_exitcode_get ());
3678 case EVENT_KIND_EXCEPTION: {
3679 EventInfo *ei = (EventInfo *)arg;
3680 buffer_add_objid (&buf, ei->exc);
3682 * We are not yet suspending, so get_objref () will not keep this object alive. So we need to do it
3683 * later after the suspension. (#12494).
3685 keepalive_obj = ei->exc;
3688 case EVENT_KIND_USER_BREAK:
3690 case EVENT_KIND_USER_LOG: {
3691 EventInfo *ei = (EventInfo *)arg;
3692 buffer_add_int (&buf, ei->level);
3693 buffer_add_string (&buf, ei->category ? ei->category : "");
3694 buffer_add_string (&buf, ei->message ? ei->message : "");
3697 case EVENT_KIND_KEEPALIVE:
3698 suspend_policy = SUSPEND_POLICY_NONE;
3701 g_assert_not_reached ();
3705 if (event == EVENT_KIND_VM_START) {
3706 suspend_policy = agent_config.suspend ? SUSPEND_POLICY_ALL : SUSPEND_POLICY_NONE;
3707 if (!agent_config.defer)
3708 start_debugger_thread ();
3711 if (event == EVENT_KIND_VM_DEATH) {
3712 vm_death_event_sent = TRUE;
3713 suspend_policy = SUSPEND_POLICY_NONE;
3716 if (mono_runtime_is_shutting_down ())
3717 suspend_policy = SUSPEND_POLICY_NONE;
3719 if (suspend_policy != SUSPEND_POLICY_NONE) {
3721 * Save the thread context and start suspending before sending the packet,
3722 * since we could be receiving the resume request before send_packet ()
3725 save_thread_context (ctx);
3729 /* This will keep this object alive */
3730 get_objref (keepalive_obj);
3733 send_success = send_packet (CMD_SET_EVENT, CMD_COMPOSITE, &buf);
3737 g_slist_free (events);
3740 if (!send_success) {
3741 DEBUG_PRINTF (2, "Sending command %s failed.\n", event_to_string (event));
3745 if (event == EVENT_KIND_VM_START) {
3746 vm_start_event_sent = TRUE;
3749 DEBUG_PRINTF (1, "[%p] Sent %d events %s(%d), suspend=%d.\n", (gpointer) (gsize) mono_native_thread_id_get (), nevents, event_to_string (event), ecount, suspend_policy);
3751 switch (suspend_policy) {
3752 case SUSPEND_POLICY_NONE:
3754 case SUSPEND_POLICY_ALL:
3757 case SUSPEND_POLICY_EVENT_THREAD:
3761 g_assert_not_reached ();
3766 process_profiler_event (EventKind event, gpointer arg)
3770 EventInfo ei, *ei_arg = NULL;
3772 if (event == EVENT_KIND_TYPE_LOAD) {
3773 ei.klass = (MonoClass *)arg;
3777 mono_loader_lock ();
3778 events = create_event_list (event, NULL, NULL, ei_arg, &suspend_policy);
3779 mono_loader_unlock ();
3781 process_event (event, arg, 0, NULL, events, suspend_policy);
3785 runtime_initialized (MonoProfiler *prof)
3787 process_profiler_event (EVENT_KIND_VM_START, mono_thread_current ());
3788 if (agent_config.defer)
3789 start_debugger_thread ();
3793 runtime_shutdown (MonoProfiler *prof)
3795 process_profiler_event (EVENT_KIND_VM_DEATH, mono_thread_current ());
3797 mono_debugger_agent_cleanup ();
3801 thread_startup (MonoProfiler *prof, uintptr_t tid)
3803 MonoInternalThread *thread = mono_thread_internal_current ();
3804 MonoInternalThread *old_thread;
3805 DebuggerTlsData *tls;
3807 if (mono_native_thread_id_equals (MONO_UINT_TO_NATIVE_THREAD_ID (tid), debugger_thread_id))
3810 g_assert (mono_native_thread_id_equals (MONO_UINT_TO_NATIVE_THREAD_ID (tid), MONO_UINT_TO_NATIVE_THREAD_ID (thread->tid)));
3812 mono_loader_lock ();
3813 old_thread = (MonoInternalThread *)mono_g_hash_table_lookup (tid_to_thread, GUINT_TO_POINTER (tid));
3814 mono_loader_unlock ();
3816 if (thread == old_thread) {
3818 * For some reason, thread_startup () might be called for the same thread
3819 * multiple times (attach ?).
3821 DEBUG_PRINTF (1, "[%p] thread_start () called multiple times for %p, ignored.\n", GUINT_TO_POINTER (tid), GUINT_TO_POINTER (tid));
3825 * thread_end () might not be called for some threads, and the tid could
3828 DEBUG_PRINTF (1, "[%p] Removing stale data for tid %p.\n", GUINT_TO_POINTER (tid), GUINT_TO_POINTER (tid));
3829 mono_loader_lock ();
3830 mono_g_hash_table_remove (thread_to_tls, old_thread);
3831 mono_g_hash_table_remove (tid_to_thread, GUINT_TO_POINTER (tid));
3832 mono_g_hash_table_remove (tid_to_thread_obj, GUINT_TO_POINTER (tid));
3833 mono_loader_unlock ();
3837 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3839 // FIXME: Free this somewhere
3840 tls = g_new0 (DebuggerTlsData, 1);
3841 MONO_GC_REGISTER_ROOT_SINGLE (tls->thread, MONO_ROOT_SOURCE_DEBUGGER, "debugger thread reference");
3842 tls->thread = thread;
3843 mono_native_tls_set_value (debugger_tls_id, tls);
3845 DEBUG_PRINTF (1, "[%p] Thread started, obj=%p, tls=%p.\n", (gpointer)tid, thread, tls);
3847 mono_loader_lock ();
3848 mono_g_hash_table_insert (thread_to_tls, thread, tls);
3849 mono_g_hash_table_insert (tid_to_thread, (gpointer)tid, thread);
3850 mono_g_hash_table_insert (tid_to_thread_obj, GUINT_TO_POINTER (tid), mono_thread_current ());
3851 mono_loader_unlock ();
3853 process_profiler_event (EVENT_KIND_THREAD_START, thread);
3856 * suspend_vm () could have missed this thread, so wait for a resume.
3862 thread_end (MonoProfiler *prof, uintptr_t tid)
3864 MonoInternalThread *thread;
3865 DebuggerTlsData *tls = NULL;
3867 mono_loader_lock ();
3868 thread = (MonoInternalThread *)mono_g_hash_table_lookup (tid_to_thread, GUINT_TO_POINTER (tid));
3870 mono_g_hash_table_remove (tid_to_thread_obj, GUINT_TO_POINTER (tid));
3871 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
3873 /* FIXME: Maybe we need to free this instead, but some code can't handle that */
3874 tls->terminated = TRUE;
3875 /* Can't remove from tid_to_thread, as that would defeat the check in thread_start () */
3876 MONO_GC_UNREGISTER_ROOT (tls->thread);
3880 mono_loader_unlock ();
3882 /* We might be called for threads started before we registered the start callback */
3884 DEBUG_PRINTF (1, "[%p] Thread terminated, obj=%p, tls=%p.\n", (gpointer)tid, thread, tls);
3886 if (mono_native_thread_id_equals (mono_native_thread_id_get (), MONO_UINT_TO_NATIVE_THREAD_ID (tid))
3887 && !mono_native_tls_get_value (debugger_tls_id)
3890 * This can happen on darwin since we deregister threads using pthread dtors.
3891 * process_profiler_event () and the code it calls cannot handle a null TLS value.
3896 process_profiler_event (EVENT_KIND_THREAD_DEATH, thread);
3901 appdomain_load (MonoProfiler *prof, MonoDomain *domain, int result)
3903 mono_loader_lock ();
3904 g_hash_table_insert (domains, domain, domain);
3905 mono_loader_unlock ();
3907 process_profiler_event (EVENT_KIND_APPDOMAIN_CREATE, domain);
3911 appdomain_start_unload (MonoProfiler *prof, MonoDomain *domain)
3913 DebuggerTlsData *tls;
3915 /* This might be called during shutdown on the debugger thread from the CMD_VM_EXIT code */
3916 if (is_debugger_thread ())
3920 * Remember the currently unloading appdomain as it is needed to generate
3921 * proper ids for unloading assemblies.
3923 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3925 tls->domain_unloading = domain;
3929 appdomain_unload (MonoProfiler *prof, MonoDomain *domain)
3931 DebuggerTlsData *tls;
3933 if (is_debugger_thread ())
3936 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
3938 tls->domain_unloading = NULL;
3940 clear_breakpoints_for_domain (domain);
3942 mono_loader_lock ();
3943 /* Invalidate each thread's frame stack */
3944 mono_g_hash_table_foreach (thread_to_tls, invalidate_each_thread, NULL);
3945 mono_loader_unlock ();
3947 process_profiler_event (EVENT_KIND_APPDOMAIN_UNLOAD, domain);
3951 * invalidate_each_thread:
3953 * A GHFunc to invalidate frames.
3954 * value must be a DebuggerTlsData*
3957 invalidate_each_thread (gpointer key, gpointer value, gpointer user_data)
3959 invalidate_frames ((DebuggerTlsData *)value);
3963 assembly_load (MonoProfiler *prof, MonoAssembly *assembly, int result)
3965 /* Sent later in jit_end () */
3967 g_ptr_array_add (pending_assembly_loads, assembly);
3972 assembly_unload (MonoProfiler *prof, MonoAssembly *assembly)
3974 if (is_debugger_thread ())
3977 process_profiler_event (EVENT_KIND_ASSEMBLY_UNLOAD, assembly);
3979 clear_event_requests_for_assembly (assembly);
3980 clear_types_for_assembly (assembly);
3984 send_type_load (MonoClass *klass)
3986 gboolean type_load = FALSE;
3987 MonoDomain *domain = mono_domain_get ();
3988 AgentDomainInfo *info = NULL;
3990 info = get_agent_domain_info (domain);
3992 mono_loader_lock ();
3994 if (!g_hash_table_lookup (info->loaded_classes, klass)) {
3996 g_hash_table_insert (info->loaded_classes, klass, klass);
3999 mono_loader_unlock ();
4002 emit_type_load (klass, klass, NULL);
4006 * Emit load events for all types currently loaded in the domain.
4007 * Takes the loader and domain locks.
4008 * user_data is unused.
4011 send_types_for_domain (MonoDomain *domain, void *user_data)
4013 AgentDomainInfo *info = NULL;
4015 info = get_agent_domain_info (domain);
4018 mono_loader_lock ();
4019 g_hash_table_foreach (info->loaded_classes, emit_type_load, NULL);
4020 mono_loader_unlock ();
4024 jit_end (MonoProfiler *prof, MonoMethod *method, MonoJitInfo *jinfo, int result)
4027 * We emit type load events when the first method of the type is JITted,
4028 * since the class load profiler callbacks might be called with the
4029 * loader lock held. They could also occur in the debugger thread.
4030 * Same for assembly load events.
4033 MonoAssembly *assembly = NULL;
4035 // FIXME: Maybe store this in TLS so the thread of the event is correct ?
4037 if (pending_assembly_loads->len > 0) {
4038 assembly = (MonoAssembly *)g_ptr_array_index (pending_assembly_loads, 0);
4039 g_ptr_array_remove_index (pending_assembly_loads, 0);
4044 process_profiler_event (EVENT_KIND_ASSEMBLY_LOAD, assembly);
4050 send_type_load (method->klass);
4053 add_pending_breakpoints (method, jinfo);
4057 * BREAKPOINTS/SINGLE STEPPING
4061 * Contains information about an inserted breakpoint.
4064 long il_offset, native_offset;
4068 } BreakpointInstance;
4071 * Contains generic information about a breakpoint.
4075 * The method where the breakpoint is placed. Can be NULL in which case it
4076 * is inserted into every method. This is used to implement method entry/
4077 * exit events. Can be a generic method definition, in which case the
4078 * breakpoint is inserted into every instance.
4084 * A list of BreakpointInstance structures describing where the breakpoint
4085 * was inserted. There could be more than one because of
4086 * generics/appdomains/method entry/exit.
4088 GPtrArray *children;
4091 /* List of breakpoints */
4092 /* Protected by the loader lock */
4093 static GPtrArray *breakpoints;
4094 /* Maps breakpoint locations to the number of breakpoints at that location */
4095 static GHashTable *bp_locs;
4098 breakpoints_init (void)
4100 breakpoints = g_ptr_array_new ();
4101 bp_locs = g_hash_table_new (NULL, NULL);
4105 * insert_breakpoint:
4107 * Insert the breakpoint described by BP into the method described by
4111 insert_breakpoint (MonoSeqPointInfo *seq_points, MonoDomain *domain, MonoJitInfo *ji, MonoBreakpoint *bp, MonoError *error)
4114 BreakpointInstance *inst;
4115 SeqPointIterator it;
4116 gboolean it_has_sp = FALSE;
4119 mono_error_init (error);
4121 mono_seq_point_iterator_init (&it, seq_points);
4122 while (mono_seq_point_iterator_next (&it)) {
4123 if (it.seq_point.il_offset == bp->il_offset) {
4131 * The set of IL offsets with seq points doesn't completely match the
4132 * info returned by CMD_METHOD_GET_DEBUG_INFO (#407).
4134 mono_seq_point_iterator_init (&it, seq_points);
4135 while (mono_seq_point_iterator_next (&it)) {
4136 if (it.seq_point.il_offset != METHOD_ENTRY_IL_OFFSET &&
4137 it.seq_point.il_offset != METHOD_EXIT_IL_OFFSET &&
4138 it.seq_point.il_offset + 1 == bp->il_offset) {
4146 char *s = g_strdup_printf ("Unable to insert breakpoint at %s:%d", mono_method_full_name (jinfo_get_method (ji), TRUE), bp->il_offset);
4148 mono_seq_point_iterator_init (&it, seq_points);
4149 while (mono_seq_point_iterator_next (&it))
4150 DEBUG_PRINTF (1, "%d\n", it.seq_point.il_offset);
4153 mono_error_set_error (error, MONO_ERROR_GENERIC, "%s", s);
4154 g_warning ("%s", s);
4158 g_warning ("%s", s);
4164 inst = g_new0 (BreakpointInstance, 1);
4165 inst->il_offset = it.seq_point.il_offset;
4166 inst->native_offset = it.seq_point.native_offset;
4167 inst->ip = (guint8*)ji->code_start + it.seq_point.native_offset;
4169 inst->domain = domain;
4171 mono_loader_lock ();
4173 g_ptr_array_add (bp->children, inst);
4175 mono_loader_unlock ();
4178 count = GPOINTER_TO_INT (g_hash_table_lookup (bp_locs, inst->ip));
4179 g_hash_table_insert (bp_locs, inst->ip, GINT_TO_POINTER (count + 1));
4182 if (it.seq_point.native_offset == SEQ_POINT_NATIVE_OFFSET_DEAD_CODE) {
4183 DEBUG_PRINTF (1, "[dbg] Attempting to insert seq point at dead IL offset %d, ignoring.\n", (int)bp->il_offset);
4184 } else if (count == 0) {
4185 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
4186 mono_arch_set_breakpoint (ji, inst->ip);
4192 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);
4196 remove_breakpoint (BreakpointInstance *inst)
4198 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
4200 MonoJitInfo *ji = inst->ji;
4201 guint8 *ip = inst->ip;
4204 count = GPOINTER_TO_INT (g_hash_table_lookup (bp_locs, ip));
4205 g_hash_table_insert (bp_locs, ip, GINT_TO_POINTER (count - 1));
4208 g_assert (count > 0);
4210 if (count == 1 && inst->native_offset != SEQ_POINT_NATIVE_OFFSET_DEAD_CODE) {
4211 mono_arch_clear_breakpoint (ji, ip);
4212 DEBUG_PRINTF (1, "[dbg] Clear breakpoint at %s [%p].\n", mono_method_full_name (jinfo_get_method (ji), TRUE), ip);
4220 * This doesn't take any locks.
4222 static inline gboolean
4223 bp_matches_method (MonoBreakpoint *bp, MonoMethod *method)
4229 if (method == bp->method)
4231 if (method->is_inflated && ((MonoMethodInflated*)method)->declaring == bp->method)
4234 if (bp->method->is_inflated && method->is_inflated) {
4235 MonoMethodInflated *bpimethod = (MonoMethodInflated*)bp->method;
4236 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
4238 /* Open generic methods should match closed generic methods of the same class */
4239 if (bpimethod->declaring == imethod->declaring && bpimethod->context.class_inst == imethod->context.class_inst && bpimethod->context.method_inst && bpimethod->context.method_inst->is_open) {
4240 for (i = 0; i < bpimethod->context.method_inst->type_argc; ++i) {
4241 MonoType *t1 = bpimethod->context.method_inst->type_argv [i];
4243 /* FIXME: Handle !mvar */
4244 if (t1->type != MONO_TYPE_MVAR)
4255 * add_pending_breakpoints:
4257 * Insert pending breakpoints into the newly JITted method METHOD.
4260 add_pending_breakpoints (MonoMethod *method, MonoJitInfo *ji)
4263 MonoSeqPointInfo *seq_points;
4265 MonoMethod *jmethod;
4270 domain = mono_domain_get ();
4272 mono_loader_lock ();
4274 for (i = 0; i < breakpoints->len; ++i) {
4275 MonoBreakpoint *bp = (MonoBreakpoint *)g_ptr_array_index (breakpoints, i);
4276 gboolean found = FALSE;
4278 if (!bp_matches_method (bp, method))
4281 for (j = 0; j < bp->children->len; ++j) {
4282 BreakpointInstance *inst = (BreakpointInstance *)g_ptr_array_index (bp->children, j);
4289 MonoMethod *declaring = NULL;
4291 jmethod = jinfo_get_method (ji);
4292 if (jmethod->is_inflated)
4293 declaring = mono_method_get_declaring_generic_method (jmethod);
4295 mono_domain_lock (domain);
4296 seq_points = (MonoSeqPointInfo *)g_hash_table_lookup (domain_jit_info (domain)->seq_points, jmethod);
4297 if (!seq_points && declaring)
4298 seq_points = (MonoSeqPointInfo *)g_hash_table_lookup (domain_jit_info (domain)->seq_points, declaring);
4299 mono_domain_unlock (domain);
4301 /* Could be AOT code */
4303 g_assert (seq_points);
4305 insert_breakpoint (seq_points, domain, ji, bp, NULL);
4309 mono_loader_unlock ();
4313 set_bp_in_method (MonoDomain *domain, MonoMethod *method, MonoSeqPointInfo *seq_points, MonoBreakpoint *bp, MonoError *error)
4319 mono_error_init (error);
4321 code = mono_jit_find_compiled_method_with_jit_info (domain, method, &ji);
4323 /* Might be AOTed code */
4324 code = mono_aot_get_method (domain, method);
4326 ji = mono_jit_info_table_find (domain, (char *)code);
4331 insert_breakpoint (seq_points, domain, ji, bp, error);
4335 clear_breakpoint (MonoBreakpoint *bp);
4340 * Set a breakpoint at IL_OFFSET in METHOD.
4341 * METHOD can be NULL, in which case a breakpoint is placed in all methods.
4342 * METHOD can also be a generic method definition, in which case a breakpoint
4343 * is placed in all instances of the method.
4344 * If ERROR is non-NULL, then it is set and NULL is returnd if some breakpoints couldn't be
4347 static MonoBreakpoint*
4348 set_breakpoint (MonoMethod *method, long il_offset, EventRequest *req, MonoError *error)
4351 GHashTableIter iter, iter2;
4354 MonoSeqPointInfo *seq_points;
4356 GPtrArray *method_domains;
4357 GPtrArray *method_seq_points;
4361 mono_error_init (error);
4364 // - suspend/resume the vm to prevent code patching problems
4365 // - multiple breakpoints on the same location
4366 // - dynamic methods
4369 bp = g_new0 (MonoBreakpoint, 1);
4370 bp->method = method;
4371 bp->il_offset = il_offset;
4373 bp->children = g_ptr_array_new ();
4375 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);
4377 methods = g_ptr_array_new ();
4378 method_domains = g_ptr_array_new ();
4379 method_seq_points = g_ptr_array_new ();
4381 mono_loader_lock ();
4382 g_hash_table_iter_init (&iter, domains);
4383 while (g_hash_table_iter_next (&iter, (void**)&domain, NULL)) {
4384 mono_domain_lock (domain);
4385 g_hash_table_iter_init (&iter2, domain_jit_info (domain)->seq_points);
4386 while (g_hash_table_iter_next (&iter2, (void**)&m, (void**)&seq_points)) {
4387 if (bp_matches_method (bp, m)) {
4388 /* Save the info locally to simplify the code inside the domain lock */
4389 g_ptr_array_add (methods, m);
4390 g_ptr_array_add (method_domains, domain);
4391 g_ptr_array_add (method_seq_points, seq_points);
4394 mono_domain_unlock (domain);
4397 for (i = 0; i < methods->len; ++i) {
4398 m = (MonoMethod *)g_ptr_array_index (methods, i);
4399 domain = (MonoDomain *)g_ptr_array_index (method_domains, i);
4400 seq_points = (MonoSeqPointInfo *)g_ptr_array_index (method_seq_points, i);
4401 set_bp_in_method (domain, m, seq_points, bp, error);
4404 g_ptr_array_add (breakpoints, bp);
4405 mono_loader_unlock ();
4407 g_ptr_array_free (methods, TRUE);
4408 g_ptr_array_free (method_domains, TRUE);
4409 g_ptr_array_free (method_seq_points, TRUE);
4411 if (error && !mono_error_ok (error)) {
4412 clear_breakpoint (bp);
4420 clear_breakpoint (MonoBreakpoint *bp)
4424 // FIXME: locking, races
4425 for (i = 0; i < bp->children->len; ++i) {
4426 BreakpointInstance *inst = (BreakpointInstance *)g_ptr_array_index (bp->children, i);
4428 remove_breakpoint (inst);
4433 mono_loader_lock ();
4434 g_ptr_array_remove (breakpoints, bp);
4435 mono_loader_unlock ();
4437 g_ptr_array_free (bp->children, TRUE);
4442 breakpoints_cleanup (void)
4446 mono_loader_lock ();
4448 while (i < event_requests->len) {
4449 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
4451 if (req->event_kind == EVENT_KIND_BREAKPOINT) {
4452 clear_breakpoint ((MonoBreakpoint *)req->info);
4453 g_ptr_array_remove_index_fast (event_requests, i);
4460 for (i = 0; i < breakpoints->len; ++i)
4461 g_free (g_ptr_array_index (breakpoints, i));
4463 g_ptr_array_free (breakpoints, TRUE);
4464 g_hash_table_destroy (bp_locs);
4469 mono_loader_unlock ();
4473 * clear_breakpoints_for_domain:
4475 * Clear breakpoint instances which reference DOMAIN.
4478 clear_breakpoints_for_domain (MonoDomain *domain)
4482 /* This could be called after shutdown */
4486 mono_loader_lock ();
4487 for (i = 0; i < breakpoints->len; ++i) {
4488 MonoBreakpoint *bp = (MonoBreakpoint *)g_ptr_array_index (breakpoints, i);
4491 while (j < bp->children->len) {
4492 BreakpointInstance *inst = (BreakpointInstance *)g_ptr_array_index (bp->children, j);
4494 if (inst->domain == domain) {
4495 remove_breakpoint (inst);
4499 g_ptr_array_remove_index_fast (bp->children, j);
4505 mono_loader_unlock ();
4509 * ss_calculate_framecount:
4511 * Ensure DebuggerTlsData fields are filled out.
4513 static void ss_calculate_framecount(DebuggerTlsData *tls, MonoContext *ctx)
4515 if (!tls->context.valid)
4516 mono_thread_state_init_from_monoctx (&tls->context, ctx);
4517 compute_frame_info (tls->thread, tls);
4523 * Return FALSE if single stepping needs to continue.
4526 ss_update (SingleStepReq *req, MonoJitInfo *ji, SeqPoint *sp, DebuggerTlsData *tls, MonoContext *ctx)
4528 MonoDebugMethodInfo *minfo;
4529 MonoDebugSourceLocation *loc = NULL;
4530 gboolean hit = TRUE;
4533 if (req->depth == STEP_DEPTH_OVER && (sp->flags & MONO_SEQ_POINT_FLAG_NONEMPTY_STACK)) {
4535 * These seq points are inserted by the JIT after calls, step over needs to skip them.
4537 DEBUG_PRINTF (1, "[%p] Seq point at nonempty stack %x while stepping over, continuing single stepping.\n", (gpointer) (gsize) mono_native_thread_id_get (), sp->il_offset);
4541 if ((req->depth == STEP_DEPTH_OVER || req->depth == STEP_DEPTH_OUT) && hit) {
4542 gboolean is_step_out = req->depth == STEP_DEPTH_OUT;
4544 ss_calculate_framecount(tls, ctx);
4546 // Because functions can call themselves recursively, we need to make sure we're stopping at the right stack depth.
4547 // In case of step out, the target is the frame *enclosing* the one where the request was made.
4548 int target_frames = req->nframes + (is_step_out ? -1 : 0);
4549 if (req->nframes > 0 && tls->frame_count > 0 && tls->frame_count > target_frames) {
4550 /* Hit the breakpoint in a recursive call, don't halt */
4551 DEBUG_PRINTF (1, "[%p] Breakpoint at lower frame while stepping %s, continuing single stepping.\n", (gpointer) (gsize) mono_native_thread_id_get (), is_step_out ? "out" : "over");
4556 if (req->depth == STEP_DEPTH_INTO && req->size == STEP_SIZE_MIN && (sp->flags & MONO_SEQ_POINT_FLAG_NONEMPTY_STACK) && ss_req->start_method){
4557 method = jinfo_get_method (ji);
4558 ss_calculate_framecount(tls, ctx);
4559 if (ss_req->start_method == method && req->nframes && tls->frame_count == req->nframes) {//Check also frame count(could be recursion)
4560 DEBUG_PRINTF (1, "[%p] Seq point at nonempty stack %x while stepping in, continuing single stepping.\n", (gpointer) (gsize) mono_native_thread_id_get (), sp->il_offset);
4565 if (req->size != STEP_SIZE_LINE)
4568 /* Have to check whenever a different source line was reached */
4569 method = jinfo_get_method (ji);
4570 minfo = mono_debug_lookup_method (method);
4573 loc = mono_debug_method_lookup_location (minfo, sp->il_offset);
4576 DEBUG_PRINTF (1, "[%p] No line number info for il offset %x, continuing single stepping.\n", (gpointer) (gsize) mono_native_thread_id_get (), sp->il_offset);
4577 ss_req->last_method = method;
4579 } else if (loc && method == ss_req->last_method && loc->row == ss_req->last_line) {
4580 ss_calculate_framecount(tls, ctx);
4581 if (tls->frame_count == req->nframes) { // If the frame has changed we're clearly not on the same source line.
4582 DEBUG_PRINTF (1, "[%p] Same source line (%d), continuing single stepping.\n", (gpointer) (gsize) mono_native_thread_id_get (), loc->row);
4588 ss_req->last_method = method;
4589 ss_req->last_line = loc->row;
4590 mono_debug_free_source_location (loc);
4597 breakpoint_matches_assembly (MonoBreakpoint *bp, MonoAssembly *assembly)
4599 return bp->method && bp->method->klass->image->assembly == assembly;
4603 process_breakpoint_inner (DebuggerTlsData *tls, gboolean from_signal)
4607 int i, j, suspend_policy;
4608 guint32 native_offset;
4610 BreakpointInstance *inst;
4611 GPtrArray *bp_reqs, *ss_reqs_orig, *ss_reqs;
4612 GSList *bp_events = NULL, *ss_events = NULL, *enter_leave_events = NULL;
4613 EventKind kind = EVENT_KIND_BREAKPOINT;
4614 MonoContext *ctx = &tls->restore_state.ctx;
4616 MonoSeqPointInfo *info;
4620 // FIXME: Speed this up
4622 ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
4623 ji = mini_jit_info_table_find (mono_domain_get (), (char*)ip, NULL);
4624 g_assert (ji && !ji->is_trampoline);
4625 method = jinfo_get_method (ji);
4627 /* Compute the native offset of the breakpoint from the ip */
4628 native_offset = ip - (guint8*)ji->code_start;
4631 * Skip the instruction causing the breakpoint signal.
4634 mono_arch_skip_breakpoint (ctx, ji);
4636 if (method->wrapper_type || tls->disable_breakpoints)
4639 bp_reqs = g_ptr_array_new ();
4640 ss_reqs = g_ptr_array_new ();
4641 ss_reqs_orig = g_ptr_array_new ();
4643 mono_loader_lock ();
4646 * The ip points to the instruction causing the breakpoint event, which is after
4647 * the offset recorded in the seq point map, so find the prev seq point before ip.
4649 found_sp = mono_find_prev_seq_point_for_native_offset (mono_domain_get (), method, native_offset, &info, &sp);
4652 no_seq_points_found (method, native_offset);
4654 g_assert (found_sp);
4656 DEBUG_PRINTF (1, "[%p] Breakpoint hit, method=%s, ip=%p, [il=0x%x,native=0x%x].\n", (gpointer) (gsize) mono_native_thread_id_get (), method->name, ip, sp.il_offset, native_offset);
4659 for (i = 0; i < breakpoints->len; ++i) {
4660 bp = (MonoBreakpoint *)g_ptr_array_index (breakpoints, i);
4665 for (j = 0; j < bp->children->len; ++j) {
4666 inst = (BreakpointInstance *)g_ptr_array_index (bp->children, j);
4667 if (inst->ji == ji && inst->il_offset == sp.il_offset && inst->native_offset == sp.native_offset) {
4668 if (bp->req->event_kind == EVENT_KIND_STEP) {
4669 g_ptr_array_add (ss_reqs_orig, bp->req);
4671 g_ptr_array_add (bp_reqs, bp->req);
4676 if (bp_reqs->len == 0 && ss_reqs_orig->len == 0) {
4677 /* Maybe a method entry/exit event */
4678 if (sp.il_offset == METHOD_ENTRY_IL_OFFSET)
4679 kind = EVENT_KIND_METHOD_ENTRY;
4680 else if (sp.il_offset == METHOD_EXIT_IL_OFFSET)
4681 kind = EVENT_KIND_METHOD_EXIT;
4684 /* Process single step requests */
4685 for (i = 0; i < ss_reqs_orig->len; ++i) {
4686 EventRequest *req = (EventRequest *)g_ptr_array_index (ss_reqs_orig, i);
4687 SingleStepReq *ss_req = (SingleStepReq *)req->info;
4690 if (mono_thread_internal_current () != ss_req->thread)
4693 hit = ss_update (ss_req, ji, &sp, tls, ctx);
4695 g_ptr_array_add (ss_reqs, req);
4697 /* Start single stepping again from the current sequence point */
4698 ss_start (ss_req, method, &sp, info, ctx, tls, FALSE, NULL, 0);
4701 if (ss_reqs->len > 0)
4702 ss_events = create_event_list (EVENT_KIND_STEP, ss_reqs, ji, NULL, &suspend_policy);
4703 if (bp_reqs->len > 0)
4704 bp_events = create_event_list (EVENT_KIND_BREAKPOINT, bp_reqs, ji, NULL, &suspend_policy);
4705 if (kind != EVENT_KIND_BREAKPOINT)
4706 enter_leave_events = create_event_list (kind, NULL, ji, NULL, &suspend_policy);
4708 mono_loader_unlock ();
4710 g_ptr_array_free (bp_reqs, TRUE);
4711 g_ptr_array_free (ss_reqs, TRUE);
4714 * FIXME: The first event will suspend, so the second will only be sent after the
4718 process_event (EVENT_KIND_STEP, method, 0, ctx, ss_events, suspend_policy);
4720 process_event (kind, method, 0, ctx, bp_events, suspend_policy);
4721 if (enter_leave_events)
4722 process_event (kind, method, 0, ctx, enter_leave_events, suspend_policy);
4725 /* Process a breakpoint/single step event after resuming from a signal handler */
4727 process_signal_event (void (*func) (DebuggerTlsData*, gboolean))
4729 DebuggerTlsData *tls;
4730 MonoThreadUnwindState orig_restore_state;
4733 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
4734 /* Have to save/restore the restore_ctx as we can be called recursively during invokes etc. */
4735 memcpy (&orig_restore_state, &tls->restore_state, sizeof (MonoThreadUnwindState));
4736 mono_thread_state_init_from_monoctx (&tls->restore_state, &tls->handler_ctx);
4740 /* This is called when resuming from a signal handler, so it shouldn't return */
4741 memcpy (&ctx, &tls->restore_state.ctx, sizeof (MonoContext));
4742 memcpy (&tls->restore_state, &orig_restore_state, sizeof (MonoThreadUnwindState));
4743 mono_restore_context (&ctx);
4744 g_assert_not_reached ();
4748 process_breakpoint (void)
4750 process_signal_event (process_breakpoint_inner);
4754 resume_from_signal_handler (void *sigctx, void *func)
4756 DebuggerTlsData *tls;
4759 /* Save the original context in TLS */
4760 // FIXME: This might not work on an altstack ?
4761 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
4763 fprintf (stderr, "Thread %p is not attached to the JIT.\n", (gpointer) (gsize) mono_native_thread_id_get ());
4766 // FIXME: MonoContext usually doesn't include the fp registers, so these are
4767 // clobbered by a single step/breakpoint event. If this turns out to be a problem,
4768 // clob:c could be added to op_seq_point.
4770 mono_sigctx_to_monoctx (sigctx, &ctx);
4771 memcpy (&tls->handler_ctx, &ctx, sizeof (MonoContext));
4772 #ifdef MONO_ARCH_HAVE_SETUP_RESUME_FROM_SIGNAL_HANDLER_CTX
4773 mono_arch_setup_resume_sighandler_ctx (&ctx, func);
4775 MONO_CONTEXT_SET_IP (&ctx, func);
4777 mono_monoctx_to_sigctx (&ctx, sigctx);
4779 #ifdef PPC_USES_FUNCTION_DESCRIPTOR
4780 mono_ppc_set_func_into_sigctx (sigctx, func);
4785 mono_debugger_agent_breakpoint_hit (void *sigctx)
4788 * We are called from a signal handler, and running code there causes all kinds of
4789 * problems, like the original signal is disabled, libgc can't handle altstack, etc.
4790 * So set up the signal context to return to the real breakpoint handler function.
4792 resume_from_signal_handler (sigctx, process_breakpoint);
4796 user_break_cb (StackFrameInfo *frame, MonoContext *ctx, gpointer data)
4798 if (frame->managed) {
4799 *(MonoContext*)data = *ctx;
4808 * Called by System.Diagnostics.Debugger:Break ().
4811 mono_debugger_agent_user_break (void)
4813 if (agent_config.enabled) {
4818 /* Obtain a context */
4819 MONO_CONTEXT_SET_IP (&ctx, NULL);
4820 mono_walk_stack_with_ctx (user_break_cb, NULL, (MonoUnwindOptions)0, &ctx);
4821 g_assert (MONO_CONTEXT_GET_IP (&ctx) != NULL);
4823 mono_loader_lock ();
4824 events = create_event_list (EVENT_KIND_USER_BREAK, NULL, NULL, NULL, &suspend_policy);
4825 mono_loader_unlock ();
4827 process_event (EVENT_KIND_USER_BREAK, NULL, 0, &ctx, events, suspend_policy);
4828 } else if (debug_options.native_debugger_break) {
4834 ss_depth_to_string (StepDepth depth)
4837 case STEP_DEPTH_OVER:
4839 case STEP_DEPTH_OUT:
4841 case STEP_DEPTH_INTO:
4844 g_assert_not_reached ();
4850 process_single_step_inner (DebuggerTlsData *tls, gboolean from_signal)
4855 int il_offset, suspend_policy;
4858 MonoContext *ctx = &tls->restore_state.ctx;
4861 MonoSeqPointInfo *info;
4863 ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
4865 /* Skip the instruction causing the single step */
4867 mono_arch_skip_single_step (ctx);
4869 if (suspend_count > 0) {
4870 /* Fastpath during invokes, see in process_suspend () */
4871 if (suspend_count - tls->resume_count == 0)
4873 process_suspend (tls, ctx);
4878 // FIXME: A suspend race
4881 if (mono_thread_internal_current () != ss_req->thread)
4884 if (log_level > 0) {
4885 ji = mini_jit_info_table_find (mono_domain_get (), (char*)ip, &domain);
4887 DEBUG_PRINTF (1, "[%p] Single step event (depth=%s) at %s (%p)[0x%x], sp %p, last sp %p\n", (gpointer) (gsize) mono_native_thread_id_get (), ss_depth_to_string (ss_req->depth), mono_method_full_name (jinfo_get_method (ji), TRUE), MONO_CONTEXT_GET_IP (ctx), (int)((guint8*)MONO_CONTEXT_GET_IP (ctx) - (guint8*)ji->code_start), MONO_CONTEXT_GET_SP (ctx), ss_req->last_sp);
4890 ji = mini_jit_info_table_find (mono_domain_get (), (char*)ip, &domain);
4891 g_assert (ji && !ji->is_trampoline);
4892 method = jinfo_get_method (ji);
4895 if (method->wrapper_type && method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)
4900 * Stopping in memset makes half-initialized vtypes visible.
4901 * Stopping in memcpy makes half-copied vtypes visible.
4903 if (method->klass == mono_defaults.string_class && (!strcmp (method->name, "memset") || strstr (method->name, "memcpy")))
4907 * The ip points to the instruction causing the single step event, which is before
4908 * the offset recorded in the seq point map, so find the next seq point after ip.
4910 if (!mono_find_next_seq_point_for_native_offset (domain, method, (guint8*)ip - (guint8*)ji->code_start, &info, &sp))
4913 il_offset = sp.il_offset;
4915 if (!ss_update (ss_req, ji, &sp, tls, ctx))
4918 /* Start single stepping again from the current sequence point */
4919 ss_start (ss_req, method, &sp, info, ctx, tls, FALSE, NULL, 0);
4921 if ((ss_req->filter & STEP_FILTER_STATIC_CTOR) &&
4922 (method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
4923 !strcmp (method->name, ".cctor"))
4926 // FIXME: Has to lock earlier
4928 reqs = g_ptr_array_new ();
4930 mono_loader_lock ();
4932 g_ptr_array_add (reqs, ss_req->req);
4934 events = create_event_list (EVENT_KIND_STEP, reqs, ji, NULL, &suspend_policy);
4936 g_ptr_array_free (reqs, TRUE);
4938 mono_loader_unlock ();
4940 process_event (EVENT_KIND_STEP, jinfo_get_method (ji), il_offset, ctx, events, suspend_policy);
4944 process_single_step (void)
4946 process_signal_event (process_single_step_inner);
4950 * mono_debugger_agent_single_step_event:
4952 * Called from a signal handler to handle a single step event.
4955 mono_debugger_agent_single_step_event (void *sigctx)
4957 /* Resume to process_single_step through the signal context */
4959 // FIXME: Since step out/over is implemented using step in, the step in case should
4960 // be as fast as possible. Move the relevant code from process_single_step_inner ()
4963 if (is_debugger_thread ()) {
4965 * This could happen despite our best effors when the runtime calls
4966 * assembly/type resolve hooks.
4967 * FIXME: Breakpoints too.
4971 mono_sigctx_to_monoctx (sigctx, &ctx);
4972 mono_arch_skip_single_step (&ctx);
4973 mono_monoctx_to_sigctx (&ctx, sigctx);
4977 resume_from_signal_handler (sigctx, process_single_step);
4981 debugger_agent_single_step_from_context (MonoContext *ctx)
4983 DebuggerTlsData *tls;
4984 MonoThreadUnwindState orig_restore_state;
4986 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
4987 /* Fastpath during invokes, see in process_suspend () */
4988 if (tls && suspend_count && suspend_count - tls->resume_count == 0)
4991 if (is_debugger_thread ())
4996 /* Have to save/restore the restore_ctx as we can be called recursively during invokes etc. */
4997 memcpy (&orig_restore_state, &tls->restore_state, sizeof (MonoThreadUnwindState));
4998 mono_thread_state_init_from_monoctx (&tls->restore_state, ctx);
4999 memcpy (&tls->handler_ctx, ctx, sizeof (MonoContext));
5001 process_single_step_inner (tls, FALSE);
5003 memcpy (ctx, &tls->restore_state.ctx, sizeof (MonoContext));
5004 memcpy (&tls->restore_state, &orig_restore_state, sizeof (MonoThreadUnwindState));
5008 debugger_agent_breakpoint_from_context (MonoContext *ctx)
5010 DebuggerTlsData *tls;
5011 MonoThreadUnwindState orig_restore_state;
5014 if (is_debugger_thread ())
5017 orig_ip = (guint8 *)MONO_CONTEXT_GET_IP (ctx);
5018 MONO_CONTEXT_SET_IP (ctx, orig_ip - 1);
5020 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
5022 memcpy (&orig_restore_state, &tls->restore_state, sizeof (MonoThreadUnwindState));
5023 mono_thread_state_init_from_monoctx (&tls->restore_state, ctx);
5024 memcpy (&tls->handler_ctx, ctx, sizeof (MonoContext));
5026 process_breakpoint_inner (tls, FALSE);
5028 memcpy (ctx, &tls->restore_state.ctx, sizeof (MonoContext));
5029 memcpy (&tls->restore_state, &orig_restore_state, sizeof (MonoThreadUnwindState));
5030 if (MONO_CONTEXT_GET_IP (ctx) == orig_ip - 1)
5031 MONO_CONTEXT_SET_IP (ctx, orig_ip);
5035 * start_single_stepping:
5037 * Turn on single stepping. Can be called multiple times, for example,
5038 * by a single step event request + a suspend.
5041 start_single_stepping (void)
5043 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
5044 int val = InterlockedIncrement (&ss_count);
5047 mono_arch_start_single_stepping ();
5049 g_assert_not_reached ();
5054 stop_single_stepping (void)
5056 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
5057 int val = InterlockedDecrement (&ss_count);
5060 mono_arch_stop_single_stepping ();
5062 g_assert_not_reached ();
5069 * Stop the single stepping operation given by SS_REQ.
5072 ss_stop (SingleStepReq *ss_req)
5077 for (l = ss_req->bps; l; l = l->next) {
5078 clear_breakpoint ((MonoBreakpoint *)l->data);
5080 g_slist_free (ss_req->bps);
5084 if (ss_req->global) {
5085 stop_single_stepping ();
5086 ss_req->global = FALSE;
5093 * Check if breakpoint would collide with one already in list. Print debug trace before returning if so.
5095 static gboolean ss_bp_is_duplicate(GSList *bps, MonoMethod *method, guint32 il_offset)
5098 for (l = bps; l; l = l->next) {
5099 MonoBreakpoint *bp = (MonoBreakpoint *)l->data;
5100 if (bp->method == method && bp->il_offset == il_offset) {
5101 DEBUG_PRINTF (1, "[dbg] Candidate breakpoint at %s:[il=0x%x] is a duplicate for this step request, will not add.\n", mono_method_full_name (method, TRUE), (int)il_offset);
5112 * Start the single stepping operation given by SS_REQ from the sequence point SP.
5113 * If CTX is not set, then this can target any thread. If CTX is set, then TLS should
5114 * belong to the same thread as CTX.
5115 * If FRAMES is not-null, use that instead of tls->frames for placing breakpoints etc.
5118 ss_start (SingleStepReq *ss_req, MonoMethod *method, SeqPoint* sp, MonoSeqPointInfo *info, MonoContext *ctx, DebuggerTlsData *tls,
5119 gboolean step_to_catch, StackFrame **frames, int nframes)
5121 int i, j, frame_index;
5122 SeqPoint *next_sp, *parent_sp = NULL;
5123 SeqPoint local_sp, local_parent_sp;
5126 MonoSeqPointInfo *parent_info;
5127 MonoMethod *parent_sp_method = NULL;
5128 gboolean enable_global = FALSE;
5130 /* Stop the previous operation */
5134 * Implement single stepping using breakpoints if possible.
5136 if (step_to_catch) {
5137 bp = set_breakpoint (method, sp->il_offset, ss_req->req, NULL);
5138 ss_req->bps = g_slist_append (ss_req->bps, bp);
5142 if (ctx && !frames) {
5143 /* Need parent frames */
5144 if (!tls->context.valid)
5145 mono_thread_state_init_from_monoctx (&tls->context, ctx);
5146 compute_frame_info (tls->thread, tls);
5147 frames = tls->frames;
5148 nframes = tls->frame_count;
5152 * Find the first sequence point in the current or in a previous frame which
5153 * is not the last in its method.
5155 if (ss_req->depth == STEP_DEPTH_OUT) {
5156 /* Ignore seq points in current method */
5157 while (frame_index < nframes) {
5158 StackFrame *frame = frames [frame_index];
5160 method = frame->method;
5161 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &info, &local_sp);
5162 sp = (found_sp)? &local_sp : NULL;
5164 if (sp && sp->next_len != 0)
5167 // There could be method calls before the next seq point in the caller when using nested calls
5168 //enable_global = TRUE;
5170 if (sp && sp->next_len == 0) {
5172 while (frame_index < nframes) {
5173 StackFrame *frame = frames [frame_index];
5175 method = frame->method;
5176 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &info, &local_sp);
5177 sp = (found_sp)? &local_sp : NULL;
5178 if (sp && sp->next_len != 0)
5184 /* Have to put a breakpoint into a parent frame since the seq points might not cover all control flow out of the method */
5185 while (frame_index < nframes) {
5186 StackFrame *frame = frames [frame_index];
5188 parent_sp_method = frame->method;
5189 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &parent_info, &local_parent_sp);
5190 parent_sp = found_sp ? &local_parent_sp : NULL;
5191 if (found_sp && parent_sp->next_len != 0)
5199 if (sp && sp->next_len > 0) {
5200 SeqPoint* next = g_new(SeqPoint, sp->next_len);
5202 mono_seq_point_init_next (info, *sp, next);
5203 for (i = 0; i < sp->next_len; i++) {
5206 if (!ss_bp_is_duplicate(ss_req->bps, method, next_sp->il_offset)) {
5207 bp = set_breakpoint (method, next_sp->il_offset, ss_req->req, NULL);
5208 ss_req->bps = g_slist_append (ss_req->bps, bp);
5215 SeqPoint* next = g_new(SeqPoint, parent_sp->next_len);
5217 mono_seq_point_init_next (parent_info, *parent_sp, next);
5218 for (i = 0; i < parent_sp->next_len; i++) {
5221 if (!ss_bp_is_duplicate(ss_req->bps, parent_sp_method, next_sp->il_offset)) {
5222 bp = set_breakpoint (parent_sp_method, next_sp->il_offset, ss_req->req, NULL);
5223 ss_req->bps = g_slist_append (ss_req->bps, bp);
5229 if (ss_req->nframes == 0)
5230 ss_req->nframes = nframes;
5232 if ((ss_req->depth == STEP_DEPTH_OVER) && (!sp && !parent_sp)) {
5233 DEBUG_PRINTF (1, "[dbg] No parent frame for step over, transition to step into.\n");
5235 * This is needed since if we leave managed code, and later return to it, step over
5236 * is not going to stop.
5237 * This approach is a bit ugly, since we change the step depth, but it only affects
5238 * clients who reuse the same step request, and only in this special case.
5240 ss_req->depth = STEP_DEPTH_INTO;
5243 if (ss_req->depth == STEP_DEPTH_OVER) {
5244 /* Need to stop in catch clauses as well */
5245 for (i = 0; i < nframes; ++i) {
5246 StackFrame *frame = frames [i];
5249 MonoJitInfo *jinfo = frame->ji;
5250 for (j = 0; j < jinfo->num_clauses; ++j) {
5251 MonoJitExceptionInfo *ei = &jinfo->clauses [j];
5253 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);
5254 sp = (found_sp)? &local_sp : NULL;
5255 if (sp && !ss_bp_is_duplicate(ss_req->bps, frame->method, sp->il_offset)) {
5256 bp = set_breakpoint (frame->method, sp->il_offset, ss_req->req, NULL);
5257 ss_req->bps = g_slist_append (ss_req->bps, bp);
5264 if (ss_req->depth == STEP_DEPTH_INTO) {
5265 /* Enable global stepping so we stop at method entry too */
5266 enable_global = TRUE;
5270 * The ctx/frame info computed above will become invalid when we continue.
5272 tls->context.valid = FALSE;
5273 tls->async_state.valid = FALSE;
5274 invalidate_frames (tls);
5277 if (enable_global) {
5278 DEBUG_PRINTF (1, "[dbg] Turning on global single stepping.\n");
5279 ss_req->global = TRUE;
5280 start_single_stepping ();
5281 } else if (!ss_req->bps) {
5282 DEBUG_PRINTF (1, "[dbg] Turning on global single stepping.\n");
5283 ss_req->global = TRUE;
5284 start_single_stepping ();
5286 ss_req->global = FALSE;
5291 * Start single stepping of thread THREAD
5294 ss_create (MonoInternalThread *thread, StepSize size, StepDepth depth, StepFilter filter, EventRequest *req)
5296 DebuggerTlsData *tls;
5297 MonoSeqPointInfo *info = NULL;
5298 SeqPoint *sp = NULL;
5301 MonoMethod *method = NULL;
5302 MonoDebugMethodInfo *minfo;
5303 gboolean step_to_catch = FALSE;
5304 gboolean set_ip = FALSE;
5305 StackFrame **frames = NULL;
5308 if (suspend_count == 0)
5309 return ERR_NOT_SUSPENDED;
5311 wait_for_suspend ();
5313 // FIXME: Multiple requests
5315 DEBUG_PRINTF (0, "Received a single step request while the previous one was still active.\n");
5316 return ERR_NOT_IMPLEMENTED;
5319 DEBUG_PRINTF (1, "[dbg] Starting single step of thread %p (depth=%s).\n", thread, ss_depth_to_string (depth));
5321 ss_req = g_new0 (SingleStepReq, 1);
5323 ss_req->thread = thread;
5324 ss_req->size = size;
5325 ss_req->depth = depth;
5326 ss_req->filter = filter;
5329 mono_loader_lock ();
5330 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
5331 mono_loader_unlock ();
5333 g_assert (tls->context.valid);
5335 if (tls->restore_state.valid && MONO_CONTEXT_GET_IP (&tls->context.ctx) != MONO_CONTEXT_GET_IP (&tls->restore_state.ctx)) {
5337 * Need to start single stepping from restore_state and not from the current state
5340 frames = compute_frame_info_from (thread, tls, &tls->restore_state, &nframes);
5343 ss_req->start_sp = ss_req->last_sp = MONO_CONTEXT_GET_SP (&tls->context.ctx);
5345 if (tls->catch_state.valid) {
5347 StackFrameInfo frame;
5348 MonoContext new_ctx;
5349 MonoLMF *lmf = NULL;
5352 * We are stopped at a throw site. Stepping should go to the catch site.
5355 /* Find the the jit info for the catch context */
5356 res = mono_find_jit_info_ext (
5357 (MonoDomain *)tls->catch_state.unwind_data [MONO_UNWIND_DATA_DOMAIN],
5358 (MonoJitTlsData *)((MonoThreadInfo*)thread->thread_info)->jit_data,
5359 NULL, &tls->catch_state.ctx, &new_ctx, NULL, &lmf, NULL, &frame);
5361 g_assert (frame.type == FRAME_TYPE_MANAGED);
5364 * Find the seq point corresponding to the landing site ip, which is the first seq
5367 found_sp = mono_find_next_seq_point_for_native_offset (frame.domain, frame.method, frame.native_offset, &info, &local_sp);
5368 sp = (found_sp)? &local_sp : NULL;
5370 no_seq_points_found (frame.method, frame.native_offset);
5373 method = frame.method;
5375 step_to_catch = TRUE;
5376 /* This make sure the seq point is not skipped by process_single_step () */
5377 ss_req->last_sp = NULL;
5380 if (!step_to_catch) {
5381 StackFrame *frame = NULL;
5384 if (frames && nframes)
5387 compute_frame_info (thread, tls);
5389 if (tls->frame_count)
5390 frame = tls->frames [0];
5393 if (ss_req->size == STEP_SIZE_LINE) {
5395 ss_req->last_method = frame->method;
5396 ss_req->last_line = -1;
5398 minfo = mono_debug_lookup_method (frame->method);
5399 if (minfo && frame->il_offset != -1) {
5400 MonoDebugSourceLocation *loc = mono_debug_method_lookup_location (minfo, frame->il_offset);
5403 ss_req->last_line = loc->row;
5411 if (!method && frame->il_offset != -1) {
5412 /* FIXME: Sort the table and use a binary search */
5413 found_sp = mono_find_prev_seq_point_for_native_offset (frame->domain, frame->method, frame->native_offset, &info, &local_sp);
5414 sp = (found_sp)? &local_sp : NULL;
5416 no_seq_points_found (frame->method, frame->native_offset);
5418 method = frame->method;
5423 ss_req->start_method = method;
5425 ss_start (ss_req, method, sp, info, set_ip ? &tls->restore_state.ctx : &tls->context.ctx, tls, step_to_catch, frames, nframes);
5428 free_frames (frames, nframes);
5434 ss_destroy (SingleStepReq *req)
5437 g_assert (ss_req == req);
5446 ss_clear_for_assembly (SingleStepReq *req, MonoAssembly *assembly)
5449 gboolean found = TRUE;
5453 for (l = ss_req->bps; l; l = l->next) {
5454 if (breakpoint_matches_assembly ((MonoBreakpoint *)l->data, assembly)) {
5455 clear_breakpoint ((MonoBreakpoint *)l->data);
5456 ss_req->bps = g_slist_delete_link (ss_req->bps, l);
5465 * Called from metadata by the icall for System.Diagnostics.Debugger:Log ().
5468 mono_debugger_agent_debug_log (int level, MonoString *category, MonoString *message)
5474 if (!agent_config.enabled)
5477 mono_loader_lock ();
5478 events = create_event_list (EVENT_KIND_USER_LOG, NULL, NULL, NULL, &suspend_policy);
5479 mono_loader_unlock ();
5482 ei.category = category ? mono_string_to_utf8 (category) : NULL;
5483 ei.message = message ? mono_string_to_utf8 (message) : NULL;
5485 process_event (EVENT_KIND_USER_LOG, &ei, 0, NULL, events, suspend_policy);
5487 g_free (ei.category);
5488 g_free (ei.message);
5492 mono_debugger_agent_debug_log_is_enabled (void)
5494 /* Treat this as true even if there is no event request for EVENT_KIND_USER_LOG */
5495 return agent_config.enabled;
5498 #if defined(PLATFORM_ANDROID) || defined(TARGET_ANDROID)
5500 mono_debugger_agent_unhandled_exception (MonoException *exc)
5509 memset (&ei, 0, sizeof (EventInfo));
5510 ei.exc = (MonoObject*)exc;
5512 mono_loader_lock ();
5513 events = create_event_list (EVENT_KIND_EXCEPTION, NULL, NULL, &ei, &suspend_policy);
5514 mono_loader_unlock ();
5516 process_event (EVENT_KIND_EXCEPTION, &ei, 0, NULL, events, suspend_policy);
5521 mono_debugger_agent_handle_exception (MonoException *exc, MonoContext *throw_ctx,
5522 MonoContext *catch_ctx)
5524 int i, j, suspend_policy;
5526 MonoJitInfo *ji, *catch_ji;
5528 DebuggerTlsData *tls = NULL;
5530 if (thread_to_tls != NULL) {
5531 MonoInternalThread *thread = mono_thread_internal_current ();
5533 mono_loader_lock ();
5534 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
5535 mono_loader_unlock ();
5537 if (tls && tls->abort_requested)
5539 if (tls && tls->disable_breakpoints)
5543 memset (&ei, 0, sizeof (EventInfo));
5545 /* Just-In-Time debugging */
5547 if (agent_config.onuncaught && !inited) {
5548 finish_agent_init (FALSE);
5551 * Send an unsolicited EXCEPTION event with a dummy request id.
5553 events = g_slist_append (NULL, GUINT_TO_POINTER (0xffffff));
5554 ei.exc = (MonoObject*)exc;
5555 process_event (EVENT_KIND_EXCEPTION, &ei, 0, throw_ctx, events, SUSPEND_POLICY_ALL);
5558 } else if (agent_config.onthrow && !inited) {
5560 gboolean found = FALSE;
5562 for (l = agent_config.onthrow; l; l = l->next) {
5563 char *ex_type = (char *)l->data;
5564 char *f = mono_type_full_name (&exc->object.vtable->klass->byval_arg);
5566 if (!strcmp (ex_type, "") || !strcmp (ex_type, f))
5573 finish_agent_init (FALSE);
5576 * Send an unsolicited EXCEPTION event with a dummy request id.
5578 events = g_slist_append (NULL, GUINT_TO_POINTER (0xffffff));
5579 ei.exc = (MonoObject*)exc;
5580 process_event (EVENT_KIND_EXCEPTION, &ei, 0, throw_ctx, events, SUSPEND_POLICY_ALL);
5588 ji = mini_jit_info_table_find (mono_domain_get (), (char *)MONO_CONTEXT_GET_IP (throw_ctx), NULL);
5590 catch_ji = mini_jit_info_table_find (mono_domain_get (), (char *)MONO_CONTEXT_GET_IP (catch_ctx), NULL);
5594 ei.exc = (MonoObject*)exc;
5595 ei.caught = catch_ctx != NULL;
5597 mono_loader_lock ();
5599 /* Treat exceptions which are caught in non-user code as unhandled */
5600 for (i = 0; i < event_requests->len; ++i) {
5601 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
5602 if (req->event_kind != EVENT_KIND_EXCEPTION)
5605 for (j = 0; j < req->nmodifiers; ++j) {
5606 Modifier *mod = &req->modifiers [j];
5608 if (mod->kind == MOD_KIND_ASSEMBLY_ONLY && catch_ji) {
5610 gboolean found = FALSE;
5611 MonoAssembly **assemblies = mod->data.assemblies;
5614 for (k = 0; assemblies [k]; ++k)
5615 if (assemblies [k] == jinfo_get_method (catch_ji)->klass->image->assembly)
5624 events = create_event_list (EVENT_KIND_EXCEPTION, NULL, ji, &ei, &suspend_policy);
5625 mono_loader_unlock ();
5627 if (tls && ei.caught && catch_ctx) {
5628 memset (&tls->catch_state, 0, sizeof (tls->catch_state));
5629 tls->catch_state.ctx = *catch_ctx;
5630 tls->catch_state.unwind_data [MONO_UNWIND_DATA_DOMAIN] = mono_domain_get ();
5631 tls->catch_state.valid = TRUE;
5634 process_event (EVENT_KIND_EXCEPTION, &ei, 0, throw_ctx, events, suspend_policy);
5637 tls->catch_state.valid = FALSE;
5641 mono_debugger_agent_begin_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
5643 DebuggerTlsData *tls;
5648 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
5653 * We're about to invoke an exception filter during the first pass of exception handling.
5655 * 'ctx' is the context that'll get passed to the filter ('call_filter (ctx, ei->data.filter)'),
5656 * 'orig_ctx' is the context where the exception has been thrown.
5659 * See mcs/class/Mono.Debugger.Soft/Tests/dtest-excfilter.il for an example.
5661 * If we're stopped in Filter(), normal stack unwinding would first unwind to
5662 * the call site (line 37) and then continue to Main(), but it would never
5663 * include the throw site (line 32).
5665 * Since exception filters are invoked during the first pass of exception handling,
5666 * the stack frames of the throw site are still intact, so we should include them
5669 * We do this here by saving the context of the throw site in 'tls->filter_state'.
5671 * Exception filters are used by MonoDroid, where we want to stop inside a call filter,
5672 * but report the location of the 'throw' to the user.
5676 g_assert (mono_thread_state_init_from_monoctx (&tls->filter_state, orig_ctx));
5680 mono_debugger_agent_end_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
5682 DebuggerTlsData *tls;
5687 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
5691 tls->filter_state.valid = FALSE;
5695 * buffer_add_value_full:
5697 * Add the encoding of the value at ADDR described by T to the buffer.
5698 * AS_VTYPE determines whenever to treat primitive types as primitive types or
5702 buffer_add_value_full (Buffer *buf, MonoType *t, void *addr, MonoDomain *domain,
5703 gboolean as_vtype, GHashTable *parent_vtypes)
5706 gboolean boxed_vtype = FALSE;
5709 if (!(*(void**)addr)) {
5710 /* This can happen with compiler generated locals */
5711 //printf ("%s\n", mono_type_full_name (t));
5712 buffer_add_byte (buf, VALUE_TYPE_ID_NULL);
5715 g_assert (*(void**)addr);
5716 addr = *(void**)addr;
5721 case MONO_TYPE_BOOLEAN:
5724 case MONO_TYPE_CHAR:
5744 case MONO_TYPE_VOID:
5745 buffer_add_byte (buf, t->type);
5747 case MONO_TYPE_BOOLEAN:
5750 buffer_add_byte (buf, t->type);
5751 buffer_add_int (buf, *(gint8*)addr);
5753 case MONO_TYPE_CHAR:
5756 buffer_add_byte (buf, t->type);
5757 buffer_add_int (buf, *(gint16*)addr);
5762 buffer_add_byte (buf, t->type);
5763 buffer_add_int (buf, *(gint32*)addr);
5768 buffer_add_byte (buf, t->type);
5769 buffer_add_long (buf, *(gint64*)addr);
5773 /* Treat it as a vtype */
5775 case MONO_TYPE_PTR: {
5776 gssize val = *(gssize*)addr;
5778 buffer_add_byte (buf, t->type);
5779 buffer_add_long (buf, val);
5783 case MONO_TYPE_STRING:
5784 case MONO_TYPE_SZARRAY:
5785 case MONO_TYPE_OBJECT:
5786 case MONO_TYPE_CLASS:
5787 case MONO_TYPE_ARRAY:
5788 obj = *(MonoObject**)addr;
5791 buffer_add_byte (buf, VALUE_TYPE_ID_NULL);
5793 if (obj->vtable->klass->valuetype) {
5794 t = &obj->vtable->klass->byval_arg;
5795 addr = mono_object_unbox (obj);
5798 } else if (obj->vtable->klass->rank) {
5799 buffer_add_byte (buf, obj->vtable->klass->byval_arg.type);
5800 } else if (obj->vtable->klass->byval_arg.type == MONO_TYPE_GENERICINST) {
5801 buffer_add_byte (buf, MONO_TYPE_CLASS);
5803 buffer_add_byte (buf, obj->vtable->klass->byval_arg.type);
5805 buffer_add_objid (buf, obj);
5809 case MONO_TYPE_VALUETYPE:
5810 case MONO_TYPE_TYPEDBYREF: {
5814 MonoClass *klass = mono_class_from_mono_type (t);
5819 * Handle boxed vtypes recursively referencing themselves using fields.
5822 parent_vtypes = g_hash_table_new (NULL, NULL);
5823 vtype_index = GPOINTER_TO_INT (g_hash_table_lookup (parent_vtypes, addr));
5825 if (CHECK_PROTOCOL_VERSION (2, 33)) {
5826 buffer_add_byte (buf, VALUE_TYPE_ID_PARENT_VTYPE);
5827 buffer_add_int (buf, vtype_index - 1);
5829 /* The client can't handle PARENT_VTYPE */
5830 buffer_add_byte (buf, VALUE_TYPE_ID_NULL);
5834 g_hash_table_insert (parent_vtypes, addr, GINT_TO_POINTER (g_hash_table_size (parent_vtypes) + 1));
5838 buffer_add_byte (buf, MONO_TYPE_VALUETYPE);
5839 buffer_add_byte (buf, klass->enumtype);
5840 buffer_add_typeid (buf, domain, klass);
5844 while ((f = mono_class_get_fields (klass, &iter))) {
5845 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC)
5847 if (mono_field_is_deleted (f))
5851 buffer_add_int (buf, nfields);
5854 while ((f = mono_class_get_fields (klass, &iter))) {
5855 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC)
5857 if (mono_field_is_deleted (f))
5859 buffer_add_value_full (buf, f->type, (guint8*)addr + f->offset - sizeof (MonoObject), domain, FALSE, parent_vtypes);
5863 g_hash_table_remove (parent_vtypes, addr);
5864 if (g_hash_table_size (parent_vtypes) == 0) {
5865 g_hash_table_destroy (parent_vtypes);
5866 parent_vtypes = NULL;
5871 case MONO_TYPE_GENERICINST:
5872 if (mono_type_generic_inst_is_valuetype (t)) {
5884 buffer_add_value (Buffer *buf, MonoType *t, void *addr, MonoDomain *domain)
5886 buffer_add_value_full (buf, t, addr, domain, FALSE, NULL);
5890 obj_is_of_type (MonoObject *obj, MonoType *t)
5892 MonoClass *klass = obj->vtable->klass;
5893 if (!mono_class_is_assignable_from (mono_class_from_mono_type (t), klass)) {
5894 if (mono_class_is_transparent_proxy (klass)) {
5895 klass = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
5896 if (mono_class_is_assignable_from (mono_class_from_mono_type (t), klass)) {
5906 decode_value (MonoType *t, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit);
5909 decode_vtype (MonoType *t, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit)
5915 gpointer iter = NULL;
5919 is_enum = decode_byte (buf, &buf, limit);
5920 /* Enums are sent as a normal vtype */
5922 return ERR_NOT_IMPLEMENTED;
5923 klass = decode_typeid (buf, &buf, limit, &d, &err);
5924 if (err != ERR_NONE)
5927 if (t && klass != mono_class_from_mono_type (t)) {
5928 char *name = mono_type_full_name (t);
5929 char *name2 = mono_type_full_name (&klass->byval_arg);
5930 DEBUG_PRINTF (1, "[%p] Expected value of type %s, got %s.\n", (gpointer) (gsize) mono_native_thread_id_get (), name, name2);
5933 return ERR_INVALID_ARGUMENT;
5936 nfields = decode_int (buf, &buf, limit);
5937 while ((f = mono_class_get_fields (klass, &iter))) {
5938 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC)
5940 if (mono_field_is_deleted (f))
5942 err = decode_value (f->type, domain, (guint8*)addr + f->offset - sizeof (MonoObject), buf, &buf, limit);
5943 if (err != ERR_NONE)
5947 g_assert (nfields == 0);
5955 decode_value_internal (MonoType *t, int type, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit)
5959 if (type != t->type && !MONO_TYPE_IS_REFERENCE (t) &&
5960 !(t->type == MONO_TYPE_I && type == MONO_TYPE_VALUETYPE) &&
5961 !(t->type == MONO_TYPE_U && type == MONO_TYPE_VALUETYPE) &&
5962 !(t->type == MONO_TYPE_PTR && type == MONO_TYPE_I8) &&
5963 !(t->type == MONO_TYPE_GENERICINST && type == MONO_TYPE_VALUETYPE) &&
5964 !(t->type == MONO_TYPE_VALUETYPE && type == MONO_TYPE_OBJECT)) {
5965 char *name = mono_type_full_name (t);
5966 DEBUG_PRINTF (1, "[%p] Expected value of type %s, got 0x%0x.\n", (gpointer) (gsize) mono_native_thread_id_get (), name, type);
5968 return ERR_INVALID_ARGUMENT;
5972 case MONO_TYPE_BOOLEAN:
5973 *(guint8*)addr = decode_int (buf, &buf, limit);
5975 case MONO_TYPE_CHAR:
5976 *(gunichar2*)addr = decode_int (buf, &buf, limit);
5979 *(gint8*)addr = decode_int (buf, &buf, limit);
5982 *(guint8*)addr = decode_int (buf, &buf, limit);
5985 *(gint16*)addr = decode_int (buf, &buf, limit);
5988 *(guint16*)addr = decode_int (buf, &buf, limit);
5991 *(gint32*)addr = decode_int (buf, &buf, limit);
5994 *(guint32*)addr = decode_int (buf, &buf, limit);
5997 *(gint64*)addr = decode_long (buf, &buf, limit);
6000 *(guint64*)addr = decode_long (buf, &buf, limit);
6003 *(guint32*)addr = decode_int (buf, &buf, limit);
6006 *(guint64*)addr = decode_long (buf, &buf, limit);
6009 /* We send these as I8, so we get them back as such */
6010 g_assert (type == MONO_TYPE_I8);
6011 *(gssize*)addr = decode_long (buf, &buf, limit);
6013 case MONO_TYPE_GENERICINST:
6014 if (MONO_TYPE_ISSTRUCT (t)) {
6015 /* The client sends these as a valuetype */
6023 /* We send these as vtypes, so we get them back as such */
6024 g_assert (type == MONO_TYPE_VALUETYPE);
6027 case MONO_TYPE_VALUETYPE:
6028 if (type == MONO_TYPE_OBJECT) {
6030 int objid = decode_objid (buf, &buf, limit);
6034 err = get_object (objid, (MonoObject**)&obj);
6035 if (err != ERR_NONE)
6038 return ERR_INVALID_ARGUMENT;
6039 if (obj->vtable->klass != mono_class_from_mono_type (t)) {
6040 DEBUG_PRINTF (1, "Expected type '%s', got object '%s'\n", mono_type_full_name (t), obj->vtable->klass->name);
6041 return ERR_INVALID_ARGUMENT;
6043 memcpy (addr, mono_object_unbox (obj), mono_class_value_size (obj->vtable->klass, NULL));
6045 err = decode_vtype (t, domain, addr, buf, &buf, limit);
6046 if (err != ERR_NONE)
6052 if (MONO_TYPE_IS_REFERENCE (t)) {
6053 if (type == MONO_TYPE_OBJECT) {
6054 int objid = decode_objid (buf, &buf, limit);
6058 err = get_object (objid, (MonoObject**)&obj);
6059 if (err != ERR_NONE)
6063 if (!obj_is_of_type (obj, t)) {
6064 DEBUG_PRINTF (1, "Expected type '%s', got '%s'\n", mono_type_full_name (t), obj->vtable->klass->name);
6065 return ERR_INVALID_ARGUMENT;
6068 if (obj && obj->vtable->domain != domain)
6069 return ERR_INVALID_ARGUMENT;
6071 mono_gc_wbarrier_generic_store (addr, obj);
6072 } else if (type == VALUE_TYPE_ID_NULL) {
6073 *(MonoObject**)addr = NULL;
6074 } else if (type == MONO_TYPE_VALUETYPE) {
6083 /* This can happen when round-tripping boxed vtypes */
6085 * Obtain vtype class.
6086 * Same as the beginning of the handle_vtype case above.
6089 is_enum = decode_byte (buf, &buf, limit);
6091 return ERR_NOT_IMPLEMENTED;
6092 klass = decode_typeid (buf, &buf, limit, &d, &err);
6093 if (err != ERR_NONE)
6096 /* Decode the vtype into a temporary buffer, then box it. */
6097 vtype_buf_size = mono_class_value_size (klass, NULL);
6098 vtype_buf = (guint8 *)g_malloc0 (vtype_buf_size);
6099 g_assert (vtype_buf);
6102 err = decode_vtype (NULL, domain, vtype_buf, buf, &buf, limit);
6103 if (err != ERR_NONE) {
6107 *(MonoObject**)addr = mono_value_box_checked (d, klass, vtype_buf, &error);
6108 mono_error_cleanup (&error);
6111 char *name = mono_type_full_name (t);
6112 DEBUG_PRINTF (1, "[%p] Expected value of type %s, got 0x%0x.\n", (gpointer) (gsize) mono_native_thread_id_get (), name, type);
6114 return ERR_INVALID_ARGUMENT;
6128 decode_value (MonoType *t, MonoDomain *domain, guint8 *addr, guint8 *buf, guint8 **endbuf, guint8 *limit)
6132 int type = decode_byte (buf, &buf, limit);
6134 if (t->type == MONO_TYPE_GENERICINST && mono_class_is_nullable (mono_class_from_mono_type (t))) {
6135 MonoType *targ = t->data.generic_class->context.class_inst->type_argv [0];
6136 guint8 *nullable_buf;
6139 * First try decoding it as a Nullable`1
6141 err = decode_value_internal (t, type, domain, addr, buf, endbuf, limit);
6142 if (err == ERR_NONE)
6146 * Then try decoding as a primitive value or null.
6148 if (targ->type == type) {
6149 nullable_buf = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (targ)));
6150 err = decode_value_internal (targ, type, domain, nullable_buf, buf, endbuf, limit);
6151 if (err != ERR_NONE) {
6152 g_free (nullable_buf);
6155 MonoObject *boxed = mono_value_box_checked (domain, mono_class_from_mono_type (targ), nullable_buf, &error);
6156 if (!is_ok (&error)) {
6157 mono_error_cleanup (&error);
6158 return ERR_INVALID_OBJECT;
6160 mono_nullable_init (addr, boxed, mono_class_from_mono_type (t));
6161 g_free (nullable_buf);
6164 } else if (type == VALUE_TYPE_ID_NULL) {
6165 mono_nullable_init (addr, NULL, mono_class_from_mono_type (t));
6171 return decode_value_internal (t, type, domain, addr, buf, endbuf, limit);
6175 add_var (Buffer *buf, MonoDebugMethodJitInfo *jit, MonoType *t, MonoDebugVarInfo *var, MonoContext *ctx, MonoDomain *domain, gboolean as_vtype)
6179 guint8 *addr, *gaddr;
6182 flags = var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6183 reg = var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6186 case MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER:
6187 reg_val = mono_arch_context_get_int_reg (ctx, reg);
6189 buffer_add_value_full (buf, t, ®_val, domain, as_vtype, NULL);
6191 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET:
6192 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6193 addr += (gint32)var->offset;
6195 //printf ("[R%d+%d] = %p\n", reg, var->offset, addr);
6197 buffer_add_value_full (buf, t, addr, domain, as_vtype, NULL);
6199 case MONO_DEBUG_VAR_ADDRESS_MODE_DEAD:
6202 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET_INDIR:
6203 case MONO_DEBUG_VAR_ADDRESS_MODE_VTADDR:
6204 /* Same as regoffset, but with an indirection */
6205 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6206 addr += (gint32)var->offset;
6208 gaddr = (guint8 *)*(gpointer*)addr;
6210 buffer_add_value_full (buf, t, gaddr, domain, as_vtype, NULL);
6212 case MONO_DEBUG_VAR_ADDRESS_MODE_GSHAREDVT_LOCAL: {
6213 MonoDebugVarInfo *info_var = jit->gsharedvt_info_var;
6214 MonoDebugVarInfo *locals_var = jit->gsharedvt_locals_var;
6215 MonoGSharedVtMethodRuntimeInfo *info;
6221 g_assert (info_var);
6222 g_assert (locals_var);
6224 flags = info_var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6225 reg = info_var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6226 if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET) {
6227 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6228 addr += (gint32)info_var->offset;
6229 info = (MonoGSharedVtMethodRuntimeInfo *)*(gpointer*)addr;
6230 } else if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER) {
6231 info = (MonoGSharedVtMethodRuntimeInfo *)mono_arch_context_get_int_reg (ctx, reg);
6233 g_assert_not_reached ();
6237 flags = locals_var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6238 reg = locals_var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6239 if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET) {
6240 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6241 addr += (gint32)locals_var->offset;
6242 locals = (guint8 *)*(gpointer*)addr;
6243 } else if (flags == MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER) {
6244 locals = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6246 g_assert_not_reached ();
6250 addr = locals + GPOINTER_TO_INT (info->entries [idx]);
6252 buffer_add_value_full (buf, t, addr, domain, as_vtype, NULL);
6257 g_assert_not_reached ();
6262 set_var (MonoType *t, MonoDebugVarInfo *var, MonoContext *ctx, MonoDomain *domain, guint8 *val, mgreg_t **reg_locations, MonoContext *restore_ctx)
6266 guint8 *addr, *gaddr;
6268 flags = var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6269 reg = var->index & ~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
6271 if (MONO_TYPE_IS_REFERENCE (t))
6272 size = sizeof (gpointer);
6274 size = mono_class_value_size (mono_class_from_mono_type (t), NULL);
6277 case MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER: {
6278 #ifdef MONO_ARCH_HAVE_CONTEXT_SET_INT_REG
6280 gboolean is_signed = FALSE;
6283 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6286 // FIXME: Write barriers
6287 mono_gc_memmove_atomic (addr, val, size);
6292 if (!t->byref && (t->type == MONO_TYPE_I1 || t->type == MONO_TYPE_I2 || t->type == MONO_TYPE_I4 || t->type == MONO_TYPE_I8))
6297 v = is_signed ? *(gint8*)val : *(guint8*)val;
6300 v = is_signed ? *(gint16*)val : *(guint16*)val;
6303 v = is_signed ? *(gint32*)val : *(guint32*)val;
6306 v = is_signed ? *(gint64*)val : *(guint64*)val;
6309 g_assert_not_reached ();
6312 /* Set value on the stack or in the return ctx */
6313 if (reg_locations [reg]) {
6314 /* Saved on the stack */
6315 DEBUG_PRINTF (1, "[dbg] Setting stack location %p for reg %x to %p.\n", reg_locations [reg], reg, (gpointer)v);
6316 *(reg_locations [reg]) = v;
6319 DEBUG_PRINTF (1, "[dbg] Setting context location for reg %x to %p.\n", reg, (gpointer)v);
6320 mono_arch_context_set_int_reg (restore_ctx, reg, v);
6323 // FIXME: Move these to mono-context.h/c.
6324 mono_arch_context_set_int_reg (ctx, reg, v);
6326 // FIXME: Can't set registers, so we disable linears
6331 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET:
6332 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6333 addr += (gint32)var->offset;
6335 //printf ("[R%d+%d] = %p\n", reg, var->offset, addr);
6338 addr = *(guint8**)addr;
6344 // FIXME: Write barriers
6345 mono_gc_memmove_atomic (addr, val, size);
6347 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET_INDIR:
6348 /* Same as regoffset, but with an indirection */
6349 addr = (guint8 *)mono_arch_context_get_int_reg (ctx, reg);
6350 addr += (gint32)var->offset;
6352 gaddr = (guint8 *)*(gpointer*)addr;
6354 // FIXME: Write barriers
6355 mono_gc_memmove_atomic (gaddr, val, size);
6357 case MONO_DEBUG_VAR_ADDRESS_MODE_DEAD:
6361 g_assert_not_reached ();
6366 clear_event_request (int req_id, int etype)
6370 mono_loader_lock ();
6371 for (i = 0; i < event_requests->len; ++i) {
6372 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
6374 if (req->id == req_id && req->event_kind == etype) {
6375 if (req->event_kind == EVENT_KIND_BREAKPOINT)
6376 clear_breakpoint ((MonoBreakpoint *)req->info);
6377 if (req->event_kind == EVENT_KIND_STEP)
6378 ss_destroy ((SingleStepReq *)req->info);
6379 if (req->event_kind == EVENT_KIND_METHOD_ENTRY)
6380 clear_breakpoint ((MonoBreakpoint *)req->info);
6381 if (req->event_kind == EVENT_KIND_METHOD_EXIT)
6382 clear_breakpoint ((MonoBreakpoint *)req->info);
6383 g_ptr_array_remove_index_fast (event_requests, i);
6388 mono_loader_unlock ();
6392 clear_assembly_from_modifier (EventRequest *req, Modifier *m, MonoAssembly *assembly)
6396 if (m->kind == MOD_KIND_EXCEPTION_ONLY && m->data.exc_class && m->data.exc_class->image->assembly == assembly)
6397 m->kind = MOD_KIND_NONE;
6398 if (m->kind == MOD_KIND_ASSEMBLY_ONLY && m->data.assemblies) {
6399 int count = 0, match_count = 0, pos;
6400 MonoAssembly **newassemblies;
6402 for (i = 0; m->data.assemblies [i]; ++i) {
6404 if (m->data.assemblies [i] == assembly)
6409 newassemblies = g_new0 (MonoAssembly*, count - match_count);
6412 for (i = 0; i < count; ++i)
6413 if (m->data.assemblies [i] != assembly)
6414 newassemblies [pos ++] = m->data.assemblies [i];
6415 g_assert (pos == count - match_count);
6416 g_free (m->data.assemblies);
6417 m->data.assemblies = newassemblies;
6423 clear_assembly_from_modifiers (EventRequest *req, MonoAssembly *assembly)
6427 for (i = 0; i < req->nmodifiers; ++i) {
6428 Modifier *m = &req->modifiers [i];
6430 clear_assembly_from_modifier (req, m, assembly);
6435 * clear_event_requests_for_assembly:
6437 * Clear all events requests which reference ASSEMBLY.
6440 clear_event_requests_for_assembly (MonoAssembly *assembly)
6445 mono_loader_lock ();
6449 for (i = 0; i < event_requests->len; ++i) {
6450 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
6452 clear_assembly_from_modifiers (req, assembly);
6454 if (req->event_kind == EVENT_KIND_BREAKPOINT && breakpoint_matches_assembly ((MonoBreakpoint *)req->info, assembly)) {
6455 clear_event_request (req->id, req->event_kind);
6460 if (req->event_kind == EVENT_KIND_STEP)
6461 ss_clear_for_assembly ((SingleStepReq *)req->info, assembly);
6464 mono_loader_unlock ();
6468 * type_comes_from_assembly:
6470 * GHRFunc that returns TRUE if klass comes from assembly
6473 type_comes_from_assembly (gpointer klass, gpointer also_klass, gpointer assembly)
6475 return (mono_class_get_image ((MonoClass*)klass) == mono_assembly_get_image ((MonoAssembly*)assembly));
6479 * clear_types_for_assembly:
6481 * Clears types from loaded_classes for a given assembly
6484 clear_types_for_assembly (MonoAssembly *assembly)
6486 MonoDomain *domain = mono_domain_get ();
6487 AgentDomainInfo *info = NULL;
6489 if (!domain || !domain_jit_info (domain))
6490 /* Can happen during shutdown */
6493 info = get_agent_domain_info (domain);
6495 mono_loader_lock ();
6496 g_hash_table_foreach_remove (info->loaded_classes, type_comes_from_assembly, assembly);
6497 mono_loader_unlock ();
6501 add_thread (gpointer key, gpointer value, gpointer user_data)
6503 MonoInternalThread *thread = (MonoInternalThread *)value;
6504 Buffer *buf = (Buffer *)user_data;
6506 buffer_add_objid (buf, (MonoObject*)thread);
6510 do_invoke_method (DebuggerTlsData *tls, Buffer *buf, InvokeData *invoke, guint8 *p, guint8 **endp)
6513 guint8 *end = invoke->endp;
6517 MonoMethodSignature *sig;
6520 MonoObject *this_arg, *res, *exc;
6523 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
6526 MonoStopwatch watch;
6528 if (invoke->method) {
6530 * Invoke this method directly, currently only Environment.Exit () is supported.
6533 DEBUG_PRINTF (1, "[%p] Invoking method '%s' on receiver '%s'.\n", (gpointer) (gsize) mono_native_thread_id_get (), mono_method_full_name (invoke->method, TRUE), this_arg ? this_arg->vtable->klass->name : "<null>");
6535 mono_runtime_try_invoke (invoke->method, NULL, invoke->args, &exc, &error);
6536 mono_error_assert_ok (&error);
6538 g_assert_not_reached ();
6541 m = decode_methodid (p, &p, end, &domain, &err);
6542 if (err != ERR_NONE)
6544 sig = mono_method_signature (m);
6546 if (m->klass->valuetype)
6547 this_buf = (guint8 *)g_alloca (mono_class_instance_size (m->klass));
6549 this_buf = (guint8 *)g_alloca (sizeof (MonoObject*));
6550 if (m->klass->valuetype && (m->flags & METHOD_ATTRIBUTE_STATIC)) {
6551 /* Should be null */
6552 int type = decode_byte (p, &p, end);
6553 if (type != VALUE_TYPE_ID_NULL) {
6554 DEBUG_PRINTF (1, "[%p] Error: Static vtype method invoked with this argument.\n", (gpointer) (gsize) mono_native_thread_id_get ());
6555 return ERR_INVALID_ARGUMENT;
6557 memset (this_buf, 0, mono_class_instance_size (m->klass));
6558 } else if (m->klass->valuetype && !strcmp (m->name, ".ctor")) {
6562 int type = decode_byte (p, &tmp_p, end);
6563 if (type == VALUE_TYPE_ID_NULL) {
6564 memset (this_buf, 0, mono_class_instance_size (m->klass));
6567 err = decode_value (&m->klass->byval_arg, domain, this_buf, p, &p, end);
6568 if (err != ERR_NONE)
6572 err = decode_value (&m->klass->byval_arg, domain, this_buf, p, &p, end);
6573 if (err != ERR_NONE)
6577 if (!m->klass->valuetype)
6578 this_arg = *(MonoObject**)this_buf;
6582 if (MONO_CLASS_IS_INTERFACE (m->klass)) {
6584 DEBUG_PRINTF (1, "[%p] Error: Interface method invoked without this argument.\n", (gpointer) (gsize) mono_native_thread_id_get ());
6585 return ERR_INVALID_ARGUMENT;
6587 m = mono_object_get_virtual_method (this_arg, m);
6588 /* Transform this to the format the rest of the code expects it to be */
6589 if (m->klass->valuetype) {
6590 this_buf = (guint8 *)g_alloca (mono_class_instance_size (m->klass));
6591 memcpy (this_buf, mono_object_unbox (this_arg), mono_class_instance_size (m->klass));
6593 } else if ((m->flags & METHOD_ATTRIBUTE_VIRTUAL) && !m->klass->valuetype && invoke->flags & INVOKE_FLAG_VIRTUAL) {
6595 DEBUG_PRINTF (1, "[%p] Error: invoke with INVOKE_FLAG_VIRTUAL flag set without this argument.\n", (gpointer) (gsize) mono_native_thread_id_get ());
6596 return ERR_INVALID_ARGUMENT;
6598 m = mono_object_get_virtual_method (this_arg, m);
6599 if (m->klass->valuetype) {
6600 this_buf = (guint8 *)g_alloca (mono_class_instance_size (m->klass));
6601 memcpy (this_buf, mono_object_unbox (this_arg), mono_class_instance_size (m->klass));
6605 DEBUG_PRINTF (1, "[%p] Invoking method '%s' on receiver '%s'.\n", (gpointer) (gsize) mono_native_thread_id_get (), mono_method_full_name (m, TRUE), this_arg ? this_arg->vtable->klass->name : "<null>");
6607 if (this_arg && this_arg->vtable->domain != domain)
6610 if (!m->klass->valuetype && !(m->flags & METHOD_ATTRIBUTE_STATIC) && !this_arg) {
6611 if (!strcmp (m->name, ".ctor")) {
6612 if (m->klass->flags & TYPE_ATTRIBUTE_ABSTRACT)
6613 return ERR_INVALID_ARGUMENT;
6616 this_arg = mono_object_new_checked (domain, m->klass, &error);
6617 mono_error_assert_ok (&error);
6620 return ERR_INVALID_ARGUMENT;
6624 if (this_arg && !obj_is_of_type (this_arg, &m->klass->byval_arg))
6625 return ERR_INVALID_ARGUMENT;
6627 nargs = decode_int (p, &p, end);
6628 if (nargs != sig->param_count)
6629 return ERR_INVALID_ARGUMENT;
6630 /* Use alloca to get gc tracking */
6631 arg_buf = (guint8 **)g_alloca (nargs * sizeof (gpointer));
6632 memset (arg_buf, 0, nargs * sizeof (gpointer));
6633 args = (gpointer *)g_alloca (nargs * sizeof (gpointer));
6634 for (i = 0; i < nargs; ++i) {
6635 if (MONO_TYPE_IS_REFERENCE (sig->params [i])) {
6636 err = decode_value (sig->params [i], domain, (guint8*)&args [i], p, &p, end);
6637 if (err != ERR_NONE)
6639 if (args [i] && ((MonoObject*)args [i])->vtable->domain != domain)
6642 if (sig->params [i]->byref) {
6643 arg_buf [i] = (guint8 *)g_alloca (sizeof (mgreg_t));
6644 *(gpointer*)arg_buf [i] = args [i];
6645 args [i] = arg_buf [i];
6648 arg_buf [i] = (guint8 *)g_alloca (mono_class_instance_size (mono_class_from_mono_type (sig->params [i])));
6649 err = decode_value (sig->params [i], domain, arg_buf [i], p, &p, end);
6650 if (err != ERR_NONE)
6652 args [i] = arg_buf [i];
6659 if (invoke->flags & INVOKE_FLAG_DISABLE_BREAKPOINTS)
6660 tls->disable_breakpoints = TRUE;
6662 tls->disable_breakpoints = FALSE;
6665 * Add an LMF frame to link the stack frames on the invoke method with our caller.
6667 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
6668 if (invoke->has_ctx) {
6671 lmf_addr = mono_get_lmf_addr ();
6674 memset (&ext, 0, sizeof (ext));
6675 mono_arch_init_lmf_ext (&ext, *lmf_addr);
6677 ext.debugger_invoke = TRUE;
6678 memcpy (&ext.ctx, &invoke->ctx, sizeof (MonoContext));
6680 mono_set_lmf ((MonoLMF*)&ext);
6684 mono_stopwatch_start (&watch);
6685 res = mono_runtime_try_invoke (m, m->klass->valuetype ? (gpointer) this_buf : (gpointer) this_arg, args, &exc, &error);
6686 if (exc == NULL && !mono_error_ok (&error)) {
6687 exc = (MonoObject*) mono_error_convert_to_exception (&error);
6689 mono_error_cleanup (&error); /* FIXME report error */
6691 mono_stopwatch_stop (&watch);
6692 DEBUG_PRINTF (1, "[%p] Invoke result: %p, exc: %s, time: %ld ms.\n", (gpointer) (gsize) mono_native_thread_id_get (), res, exc ? exc->vtable->klass->name : NULL, (long)mono_stopwatch_elapsed_ms (&watch));
6694 buffer_add_byte (buf, 0);
6695 buffer_add_value (buf, &mono_defaults.object_class->byval_arg, &exc, domain);
6697 gboolean out_this = FALSE;
6698 gboolean out_args = FALSE;
6700 if ((invoke->flags & INVOKE_FLAG_RETURN_OUT_THIS) && CHECK_PROTOCOL_VERSION (2, 35))
6702 if ((invoke->flags & INVOKE_FLAG_RETURN_OUT_ARGS) && CHECK_PROTOCOL_VERSION (2, 35))
6704 buffer_add_byte (buf, 1 + (out_this ? 2 : 0) + (out_args ? 4 : 0));
6705 if (sig->ret->type == MONO_TYPE_VOID) {
6706 if (!strcmp (m->name, ".ctor")) {
6707 if (!m->klass->valuetype)
6708 buffer_add_value (buf, &mono_defaults.object_class->byval_arg, &this_arg, domain);
6710 buffer_add_value (buf, &m->klass->byval_arg, this_buf, domain);
6712 buffer_add_value (buf, &mono_defaults.void_class->byval_arg, NULL, domain);
6714 } else if (MONO_TYPE_IS_REFERENCE (sig->ret)) {
6715 buffer_add_value (buf, sig->ret, &res, domain);
6716 } else if (mono_class_from_mono_type (sig->ret)->valuetype || sig->ret->type == MONO_TYPE_PTR || sig->ret->type == MONO_TYPE_FNPTR) {
6717 if (mono_class_is_nullable (mono_class_from_mono_type (sig->ret))) {
6718 MonoClass *k = mono_class_from_mono_type (sig->ret);
6719 guint8 *nullable_buf = (guint8 *)g_alloca (mono_class_value_size (k, NULL));
6721 g_assert (nullable_buf);
6722 mono_nullable_init (nullable_buf, res, k);
6723 buffer_add_value (buf, sig->ret, nullable_buf, domain);
6726 buffer_add_value (buf, sig->ret, mono_object_unbox (res), domain);
6732 /* Return the new value of the receiver after the call */
6733 buffer_add_value (buf, &m->klass->byval_arg, this_buf, domain);
6735 buffer_add_int (buf, nargs);
6736 for (i = 0; i < nargs; ++i) {
6737 if (MONO_TYPE_IS_REFERENCE (sig->params [i]))
6738 buffer_add_value (buf, sig->params [i], &args [i], domain);
6739 else if (sig->params [i]->byref)
6740 /* add_value () does an indirection */
6741 buffer_add_value (buf, sig->params [i], &arg_buf [i], domain);
6743 buffer_add_value (buf, sig->params [i], arg_buf [i], domain);
6748 tls->disable_breakpoints = FALSE;
6750 #ifdef MONO_ARCH_SOFT_DEBUG_SUPPORTED
6751 if (invoke->has_ctx)
6752 mono_set_lmf ((MonoLMF *)(((gssize)ext.lmf.previous_lmf) & ~3));
6756 // FIXME: byref arguments
6764 * Invoke the method given by tls->pending_invoke in the current thread.
6767 invoke_method (void)
6769 DebuggerTlsData *tls;
6775 MonoContext restore_ctx;
6778 tls = (DebuggerTlsData *)mono_native_tls_get_value (debugger_tls_id);
6782 * Store the `InvokeData *' in `tls->invoke' until we're done with
6783 * the invocation, so CMD_VM_ABORT_INVOKE can check it.
6786 mono_loader_lock ();
6788 invoke = tls->pending_invoke;
6790 tls->pending_invoke = NULL;
6792 invoke->last_invoke = tls->invoke;
6793 tls->invoke = invoke;
6795 mono_loader_unlock ();
6797 tls->frames_up_to_date = FALSE;
6803 for (mindex = 0; mindex < invoke->nmethods; ++mindex) {
6804 buffer_init (&buf, 128);
6807 /* Fail the other invokes as well */
6809 err = do_invoke_method (tls, &buf, invoke, p, &p);
6812 if (tls->abort_requested) {
6813 if (CHECK_PROTOCOL_VERSION (2, 42))
6814 err = ERR_INVOKE_ABORTED;
6817 /* Start suspending before sending the reply */
6818 if (mindex == invoke->nmethods - 1) {
6819 if (!(invoke->flags & INVOKE_FLAG_SINGLE_THREADED)) {
6820 for (i = 0; i < invoke->suspend_count; ++i)
6825 send_reply_packet (id, err, &buf);
6830 memcpy (&restore_ctx, &invoke->ctx, sizeof (MonoContext));
6832 if (invoke->has_ctx)
6833 save_thread_context (&restore_ctx);
6835 if (invoke->flags & INVOKE_FLAG_SINGLE_THREADED) {
6836 g_assert (tls->resume_count);
6837 tls->resume_count -= invoke->suspend_count;
6840 DEBUG_PRINTF (1, "[%p] Invoke finished (%d), resume_count = %d.\n", (gpointer) (gsize) mono_native_thread_id_get (), err, tls->resume_count);
6843 * Take the loader lock to avoid race conditions with CMD_VM_ABORT_INVOKE:
6845 * It is possible that ves_icall_System_Threading_Thread_Abort () was called
6846 * after the mono_runtime_invoke_checked() already returned, but it doesn't matter
6847 * because we reset the abort here.
6850 mono_loader_lock ();
6852 if (tls->abort_requested)
6853 mono_thread_internal_reset_abort (tls->thread);
6855 tls->invoke = tls->invoke->last_invoke;
6856 tls->abort_requested = FALSE;
6858 mono_loader_unlock ();
6867 is_really_suspended (gpointer key, gpointer value, gpointer user_data)
6869 MonoThread *thread = (MonoThread *)value;
6870 DebuggerTlsData *tls;
6873 mono_loader_lock ();
6874 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
6876 res = tls->really_suspended;
6877 mono_loader_unlock ();
6883 get_source_files_for_type (MonoClass *klass)
6885 gpointer iter = NULL;
6887 MonoDebugSourceInfo *sinfo;
6891 files = g_ptr_array_new ();
6893 while ((method = mono_class_get_methods (klass, &iter))) {
6894 MonoDebugMethodInfo *minfo = mono_debug_lookup_method (method);
6895 GPtrArray *source_file_list;
6898 mono_debug_get_seq_points (minfo, NULL, &source_file_list, NULL, NULL, NULL);
6899 for (j = 0; j < source_file_list->len; ++j) {
6900 sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, j);
6901 for (i = 0; i < files->len; ++i)
6902 if (!strcmp (g_ptr_array_index (files, i), sinfo->source_file))
6904 if (i == files->len)
6905 g_ptr_array_add (files, g_strdup (sinfo->source_file));
6907 g_ptr_array_free (source_file_list, TRUE);
6915 vm_commands (int command, int id, guint8 *p, guint8 *end, Buffer *buf)
6918 case CMD_VM_VERSION: {
6919 char *build_info, *version;
6921 build_info = mono_get_runtime_build_info ();
6922 version = g_strdup_printf ("mono %s", build_info);
6924 buffer_add_string (buf, version); /* vm version */
6925 buffer_add_int (buf, MAJOR_VERSION);
6926 buffer_add_int (buf, MINOR_VERSION);
6927 g_free (build_info);
6931 case CMD_VM_SET_PROTOCOL_VERSION: {
6932 major_version = decode_int (p, &p, end);
6933 minor_version = decode_int (p, &p, end);
6934 protocol_version_set = TRUE;
6935 DEBUG_PRINTF (1, "[dbg] Protocol version %d.%d, client protocol version %d.%d.\n", MAJOR_VERSION, MINOR_VERSION, major_version, minor_version);
6938 case CMD_VM_ALL_THREADS: {
6940 mono_loader_lock ();
6941 buffer_add_int (buf, mono_g_hash_table_size (tid_to_thread_obj));
6942 mono_g_hash_table_foreach (tid_to_thread_obj, add_thread, buf);
6943 mono_loader_unlock ();
6946 case CMD_VM_SUSPEND:
6948 wait_for_suspend ();
6951 if (suspend_count == 0)
6952 return ERR_NOT_SUSPENDED;
6954 clear_suspended_objs ();
6956 case CMD_VM_DISPOSE:
6957 /* Clear all event requests */
6958 mono_loader_lock ();
6959 while (event_requests->len > 0) {
6960 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, 0);
6962 clear_event_request (req->id, req->event_kind);
6964 mono_loader_unlock ();
6966 while (suspend_count > 0)
6968 disconnected = TRUE;
6969 vm_start_event_sent = FALSE;
6972 MonoInternalThread *thread;
6973 DebuggerTlsData *tls;
6974 #ifdef TRY_MANAGED_SYSTEM_ENVIRONMENT_EXIT
6975 MonoClass *env_class;
6977 MonoMethod *exit_method = NULL;
6981 exit_code = decode_int (p, &p, end);
6983 // FIXME: What if there is a VM_DEATH event request with SUSPEND_ALL ?
6985 /* Have to send a reply before exiting */
6986 send_reply_packet (id, 0, buf);
6988 /* Clear all event requests */
6989 mono_loader_lock ();
6990 while (event_requests->len > 0) {
6991 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, 0);
6993 clear_event_request (req->id, req->event_kind);
6995 mono_loader_unlock ();
6998 * The JDWP documentation says that the shutdown is not orderly. It doesn't
6999 * specify whenever a VM_DEATH event is sent. We currently do an orderly
7000 * shutdown by hijacking a thread to execute Environment.Exit (). This is
7001 * better than doing the shutdown ourselves, since it avoids various races.
7005 wait_for_suspend ();
7007 #ifdef TRY_MANAGED_SYSTEM_ENVIRONMENT_EXIT
7008 env_class = mono_class_try_load_from_name (mono_defaults.corlib, "System", "Environment");
7010 exit_method = mono_class_get_method_from_name (env_class, "Exit", 1);
7013 mono_loader_lock ();
7014 thread = (MonoInternalThread *)mono_g_hash_table_find (tid_to_thread, is_really_suspended, NULL);
7015 mono_loader_unlock ();
7017 if (thread && exit_method) {
7018 mono_loader_lock ();
7019 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
7020 mono_loader_unlock ();
7022 args = g_new0 (gpointer, 1);
7023 args [0] = g_malloc (sizeof (int));
7024 *(int*)(args [0]) = exit_code;
7026 tls->pending_invoke = g_new0 (InvokeData, 1);
7027 tls->pending_invoke->method = exit_method;
7028 tls->pending_invoke->args = args;
7029 tls->pending_invoke->nmethods = 1;
7031 while (suspend_count > 0)
7035 * No thread found, do it ourselves.
7036 * FIXME: This can race with normal shutdown etc.
7038 while (suspend_count > 0)
7041 if (!mono_runtime_try_shutdown ())
7044 mono_environment_exitcode_set (exit_code);
7046 /* Suspend all managed threads since the runtime is going away */
7047 DEBUG_PRINTF (1, "Suspending all threads...\n");
7048 mono_thread_suspend_all_other_threads ();
7049 DEBUG_PRINTF (1, "Shutting down the runtime...\n");
7050 mono_runtime_quit ();
7051 transport_close2 ();
7052 DEBUG_PRINTF (1, "Exiting...\n");
7058 case CMD_VM_INVOKE_METHOD:
7059 case CMD_VM_INVOKE_METHODS: {
7060 int objid = decode_objid (p, &p, end);
7062 DebuggerTlsData *tls;
7063 int i, count, flags, nmethods;
7066 err = get_object (objid, (MonoObject**)&thread);
7067 if (err != ERR_NONE)
7070 flags = decode_int (p, &p, end);
7072 if (command == CMD_VM_INVOKE_METHODS)
7073 nmethods = decode_int (p, &p, end);
7077 // Wait for suspending if it already started
7079 wait_for_suspend ();
7080 if (!is_suspended ())
7081 return ERR_NOT_SUSPENDED;
7083 mono_loader_lock ();
7084 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, THREAD_TO_INTERNAL (thread));
7085 mono_loader_unlock ();
7088 if (!tls->really_suspended)
7089 /* The thread is still running native code, can't do invokes */
7090 return ERR_NOT_SUSPENDED;
7093 * Store the invoke data into tls, the thread will execute it after it is
7096 if (tls->pending_invoke)
7097 return ERR_NOT_SUSPENDED;
7098 tls->pending_invoke = g_new0 (InvokeData, 1);
7099 tls->pending_invoke->id = id;
7100 tls->pending_invoke->flags = flags;
7101 tls->pending_invoke->p = (guint8 *)g_malloc (end - p);
7102 memcpy (tls->pending_invoke->p, p, end - p);
7103 tls->pending_invoke->endp = tls->pending_invoke->p + (end - p);
7104 tls->pending_invoke->suspend_count = suspend_count;
7105 tls->pending_invoke->nmethods = nmethods;
7107 if (flags & INVOKE_FLAG_SINGLE_THREADED) {
7108 resume_thread (THREAD_TO_INTERNAL (thread));
7111 count = suspend_count;
7112 for (i = 0; i < count; ++i)
7117 case CMD_VM_ABORT_INVOKE: {
7118 int objid = decode_objid (p, &p, end);
7120 DebuggerTlsData *tls;
7124 err = get_object (objid, (MonoObject**)&thread);
7125 if (err != ERR_NONE)
7128 invoke_id = decode_int (p, &p, end);
7130 mono_loader_lock ();
7131 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, THREAD_TO_INTERNAL (thread));
7134 if (tls->abort_requested) {
7135 DEBUG_PRINTF (1, "Abort already requested.\n");
7136 mono_loader_unlock ();
7141 * Check whether we're still inside the mono_runtime_invoke_checked() and that it's
7142 * actually the correct invocation.
7144 * Careful, we do not stop the thread that's doing the invocation, so we can't
7145 * inspect its stack. However, invoke_method() also acquires the loader lock
7146 * when it's done, so we're safe here.
7150 if (!tls->invoke || (tls->invoke->id != invoke_id)) {
7151 mono_loader_unlock ();
7152 return ERR_NO_INVOCATION;
7155 tls->abort_requested = TRUE;
7157 ves_icall_System_Threading_Thread_Abort (THREAD_TO_INTERNAL (thread), NULL);
7158 mono_loader_unlock ();
7162 case CMD_VM_SET_KEEPALIVE: {
7163 int timeout = decode_int (p, &p, end);
7164 agent_config.keepalive = timeout;
7166 #ifndef DISABLE_SOCKET_TRANSPORT
7173 case CMD_VM_GET_TYPES_FOR_SOURCE_FILE: {
7174 GHashTableIter iter, kiter;
7179 char *fname, *basename;
7180 gboolean ignore_case;
7181 GSList *class_list, *l;
7182 GPtrArray *res_classes, *res_domains;
7184 fname = decode_string (p, &p, end);
7185 ignore_case = decode_byte (p, &p, end);
7187 basename = dbg_path_get_basename (fname);
7189 res_classes = g_ptr_array_new ();
7190 res_domains = g_ptr_array_new ();
7192 mono_loader_lock ();
7193 g_hash_table_iter_init (&iter, domains);
7194 while (g_hash_table_iter_next (&iter, NULL, (void**)&domain)) {
7195 AgentDomainInfo *info = (AgentDomainInfo *)domain_jit_info (domain)->agent_info;
7197 /* Update 'source_file_to_class' cache */
7198 g_hash_table_iter_init (&kiter, info->loaded_classes);
7199 while (g_hash_table_iter_next (&kiter, NULL, (void**)&klass)) {
7200 if (!g_hash_table_lookup (info->source_files, klass)) {
7201 files = get_source_files_for_type (klass);
7202 g_hash_table_insert (info->source_files, klass, files);
7204 for (i = 0; i < files->len; ++i) {
7205 char *s = (char *)g_ptr_array_index (files, i);
7206 char *s2 = dbg_path_get_basename (s);
7209 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class, s2);
7211 class_list = g_slist_prepend (class_list, klass);
7212 g_hash_table_insert (info->source_file_to_class, g_strdup (s2), class_list);
7214 class_list = g_slist_prepend (class_list, klass);
7215 g_hash_table_insert (info->source_file_to_class, s2, class_list);
7218 /* The _ignorecase hash contains the lowercase path */
7219 s3 = strdup_tolower (s2);
7220 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class_ignorecase, s3);
7222 class_list = g_slist_prepend (class_list, klass);
7223 g_hash_table_insert (info->source_file_to_class_ignorecase, g_strdup (s3), class_list);
7225 class_list = g_slist_prepend (class_list, klass);
7226 g_hash_table_insert (info->source_file_to_class_ignorecase, s3, class_list);
7238 s = strdup_tolower (basename);
7239 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class_ignorecase, s);
7242 class_list = (GSList *)g_hash_table_lookup (info->source_file_to_class, basename);
7245 for (l = class_list; l; l = l->next) {
7246 klass = (MonoClass *)l->data;
7248 g_ptr_array_add (res_classes, klass);
7249 g_ptr_array_add (res_domains, domain);
7252 mono_loader_unlock ();
7257 buffer_add_int (buf, res_classes->len);
7258 for (i = 0; i < res_classes->len; ++i)
7259 buffer_add_typeid (buf, (MonoDomain *)g_ptr_array_index (res_domains, i), (MonoClass *)g_ptr_array_index (res_classes, i));
7260 g_ptr_array_free (res_classes, TRUE);
7261 g_ptr_array_free (res_domains, TRUE);
7264 case CMD_VM_GET_TYPES: {
7265 GHashTableIter iter;
7269 gboolean ignore_case;
7270 GPtrArray *res_classes, *res_domains;
7271 MonoTypeNameParse info;
7273 name = decode_string (p, &p, end);
7274 ignore_case = decode_byte (p, &p, end);
7276 if (!mono_reflection_parse_type (name, &info)) {
7278 mono_reflection_free_type_info (&info);
7279 return ERR_INVALID_ARGUMENT;
7282 res_classes = g_ptr_array_new ();
7283 res_domains = g_ptr_array_new ();
7285 mono_loader_lock ();
7286 g_hash_table_iter_init (&iter, domains);
7287 while (g_hash_table_iter_next (&iter, NULL, (void**)&domain)) {
7289 gboolean type_resolve;
7293 mono_domain_assemblies_lock (domain);
7294 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
7295 ass = (MonoAssembly *)tmp->data;
7299 type_resolve = TRUE;
7300 /* FIXME really okay to call while holding locks? */
7301 t = mono_reflection_get_type_checked (ass->image, ass->image, &info, ignore_case, &type_resolve, &error);
7302 mono_error_cleanup (&error);
7304 g_ptr_array_add (res_classes, mono_type_get_class (t));
7305 g_ptr_array_add (res_domains, domain);
7309 mono_domain_assemblies_unlock (domain);
7311 mono_loader_unlock ();
7314 mono_reflection_free_type_info (&info);
7316 buffer_add_int (buf, res_classes->len);
7317 for (i = 0; i < res_classes->len; ++i)
7318 buffer_add_typeid (buf, (MonoDomain *)g_ptr_array_index (res_domains, i), (MonoClass *)g_ptr_array_index (res_classes, i));
7319 g_ptr_array_free (res_classes, TRUE);
7320 g_ptr_array_free (res_domains, TRUE);
7323 case CMD_VM_START_BUFFERING:
7324 case CMD_VM_STOP_BUFFERING:
7325 /* Handled in the main loop */
7328 return ERR_NOT_IMPLEMENTED;
7335 event_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7341 case CMD_EVENT_REQUEST_SET: {
7343 int i, event_kind, suspend_policy, nmodifiers;
7347 MonoThread *step_thread;
7348 int step_thread_id = 0;
7349 StepDepth depth = STEP_DEPTH_INTO;
7350 StepSize size = STEP_SIZE_MIN;
7351 StepFilter filter = STEP_FILTER_NONE;
7355 event_kind = decode_byte (p, &p, end);
7356 suspend_policy = decode_byte (p, &p, end);
7357 nmodifiers = decode_byte (p, &p, end);
7359 req = (EventRequest *)g_malloc0 (sizeof (EventRequest) + (nmodifiers * sizeof (Modifier)));
7360 req->id = InterlockedIncrement (&event_request_id);
7361 req->event_kind = event_kind;
7362 req->suspend_policy = suspend_policy;
7363 req->nmodifiers = nmodifiers;
7366 for (i = 0; i < nmodifiers; ++i) {
7367 mod = (ModifierKind)decode_byte (p, &p, end);
7369 req->modifiers [i].kind = mod;
7370 if (mod == MOD_KIND_COUNT) {
7371 req->modifiers [i].data.count = decode_int (p, &p, end);
7372 } else if (mod == MOD_KIND_LOCATION_ONLY) {
7373 method = decode_methodid (p, &p, end, &domain, &err);
7374 if (err != ERR_NONE)
7376 location = decode_long (p, &p, end);
7377 } else if (mod == MOD_KIND_STEP) {
7378 step_thread_id = decode_id (p, &p, end);
7379 size = (StepSize)decode_int (p, &p, end);
7380 depth = (StepDepth)decode_int (p, &p, end);
7381 if (CHECK_PROTOCOL_VERSION (2, 16))
7382 filter = (StepFilter)decode_int (p, &p, end);
7383 req->modifiers [i].data.filter = filter;
7384 if (!CHECK_PROTOCOL_VERSION (2, 26) && (req->modifiers [i].data.filter & STEP_FILTER_DEBUGGER_HIDDEN))
7385 /* Treat STEP_THOUGH the same as HIDDEN */
7386 req->modifiers [i].data.filter = (StepFilter)(req->modifiers [i].data.filter | STEP_FILTER_DEBUGGER_STEP_THROUGH);
7387 } else if (mod == MOD_KIND_THREAD_ONLY) {
7388 int id = decode_id (p, &p, end);
7390 err = get_object (id, (MonoObject**)&req->modifiers [i].data.thread);
7391 if (err != ERR_NONE) {
7395 } else if (mod == MOD_KIND_EXCEPTION_ONLY) {
7396 MonoClass *exc_class = decode_typeid (p, &p, end, &domain, &err);
7398 if (err != ERR_NONE)
7400 req->modifiers [i].caught = decode_byte (p, &p, end);
7401 req->modifiers [i].uncaught = decode_byte (p, &p, end);
7402 if (CHECK_PROTOCOL_VERSION (2, 25))
7403 req->modifiers [i].subclasses = decode_byte (p, &p, end);
7405 req->modifiers [i].subclasses = TRUE;
7406 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" : "");
7408 req->modifiers [i].data.exc_class = exc_class;
7410 if (!mono_class_is_assignable_from (mono_defaults.exception_class, exc_class)) {
7412 return ERR_INVALID_ARGUMENT;
7415 } else if (mod == MOD_KIND_ASSEMBLY_ONLY) {
7416 int n = decode_int (p, &p, end);
7419 req->modifiers [i].data.assemblies = g_new0 (MonoAssembly*, n);
7420 for (j = 0; j < n; ++j) {
7421 req->modifiers [i].data.assemblies [j] = decode_assemblyid (p, &p, end, &domain, &err);
7422 if (err != ERR_NONE) {
7423 g_free (req->modifiers [i].data.assemblies);
7427 } else if (mod == MOD_KIND_SOURCE_FILE_ONLY) {
7428 int n = decode_int (p, &p, end);
7431 modifier = &req->modifiers [i];
7432 modifier->data.source_files = g_hash_table_new (g_str_hash, g_str_equal);
7433 for (j = 0; j < n; ++j) {
7434 char *s = decode_string (p, &p, end);
7438 s2 = strdup_tolower (s);
7439 g_hash_table_insert (modifier->data.source_files, s2, s2);
7443 } else if (mod == MOD_KIND_TYPE_NAME_ONLY) {
7444 int n = decode_int (p, &p, end);
7447 modifier = &req->modifiers [i];
7448 modifier->data.type_names = g_hash_table_new (g_str_hash, g_str_equal);
7449 for (j = 0; j < n; ++j) {
7450 char *s = decode_string (p, &p, end);
7453 g_hash_table_insert (modifier->data.type_names, s, s);
7457 return ERR_NOT_IMPLEMENTED;
7461 if (req->event_kind == EVENT_KIND_BREAKPOINT) {
7464 req->info = set_breakpoint (method, location, req, &error);
7465 if (!mono_error_ok (&error)) {
7467 DEBUG_PRINTF (1, "[dbg] Failed to set breakpoint: %s\n", mono_error_get_message (&error));
7468 mono_error_cleanup (&error);
7469 return ERR_NO_SEQ_POINT_AT_IL_OFFSET;
7471 } else if (req->event_kind == EVENT_KIND_STEP) {
7472 g_assert (step_thread_id);
7474 err = get_object (step_thread_id, (MonoObject**)&step_thread);
7475 if (err != ERR_NONE) {
7480 err = ss_create (THREAD_TO_INTERNAL (step_thread), size, depth, filter, req);
7481 if (err != ERR_NONE) {
7485 } else if (req->event_kind == EVENT_KIND_METHOD_ENTRY) {
7486 req->info = set_breakpoint (NULL, METHOD_ENTRY_IL_OFFSET, req, NULL);
7487 } else if (req->event_kind == EVENT_KIND_METHOD_EXIT) {
7488 req->info = set_breakpoint (NULL, METHOD_EXIT_IL_OFFSET, req, NULL);
7489 } else if (req->event_kind == EVENT_KIND_EXCEPTION) {
7490 } else if (req->event_kind == EVENT_KIND_TYPE_LOAD) {
7492 if (req->nmodifiers) {
7494 return ERR_NOT_IMPLEMENTED;
7498 mono_loader_lock ();
7499 g_ptr_array_add (event_requests, req);
7501 if (agent_config.defer) {
7502 /* Transmit cached data to the client on receipt of the event request */
7503 switch (req->event_kind) {
7504 case EVENT_KIND_APPDOMAIN_CREATE:
7505 /* Emit load events for currently loaded domains */
7506 g_hash_table_foreach (domains, emit_appdomain_load, NULL);
7508 case EVENT_KIND_ASSEMBLY_LOAD:
7509 /* Emit load events for currently loaded assemblies */
7510 mono_assembly_foreach (emit_assembly_load, NULL);
7512 case EVENT_KIND_THREAD_START:
7513 /* Emit start events for currently started threads */
7514 mono_g_hash_table_foreach (tid_to_thread, emit_thread_start, NULL);
7516 case EVENT_KIND_TYPE_LOAD:
7517 /* Emit type load events for currently loaded types */
7518 mono_domain_foreach (send_types_for_domain, NULL);
7524 mono_loader_unlock ();
7526 buffer_add_int (buf, req->id);
7529 case CMD_EVENT_REQUEST_CLEAR: {
7530 int etype = decode_byte (p, &p, end);
7531 int req_id = decode_int (p, &p, end);
7533 // FIXME: Make a faster mapping from req_id to request
7534 mono_loader_lock ();
7535 clear_event_request (req_id, etype);
7536 mono_loader_unlock ();
7539 case CMD_EVENT_REQUEST_CLEAR_ALL_BREAKPOINTS: {
7542 mono_loader_lock ();
7544 while (i < event_requests->len) {
7545 EventRequest *req = (EventRequest *)g_ptr_array_index (event_requests, i);
7547 if (req->event_kind == EVENT_KIND_BREAKPOINT) {
7548 clear_breakpoint ((MonoBreakpoint *)req->info);
7550 g_ptr_array_remove_index_fast (event_requests, i);
7556 mono_loader_unlock ();
7560 return ERR_NOT_IMPLEMENTED;
7567 domain_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7573 case CMD_APPDOMAIN_GET_ROOT_DOMAIN: {
7574 buffer_add_domainid (buf, mono_get_root_domain ());
7577 case CMD_APPDOMAIN_GET_FRIENDLY_NAME: {
7578 domain = decode_domainid (p, &p, end, NULL, &err);
7579 if (err != ERR_NONE)
7581 buffer_add_string (buf, domain->friendly_name);
7584 case CMD_APPDOMAIN_GET_ASSEMBLIES: {
7589 domain = decode_domainid (p, &p, end, NULL, &err);
7590 if (err != ERR_NONE)
7592 mono_loader_lock ();
7594 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
7597 buffer_add_int (buf, count);
7598 for (tmp = domain->domain_assemblies; tmp; tmp = tmp->next) {
7599 ass = (MonoAssembly *)tmp->data;
7600 buffer_add_assemblyid (buf, domain, ass);
7602 mono_loader_unlock ();
7605 case CMD_APPDOMAIN_GET_ENTRY_ASSEMBLY: {
7606 domain = decode_domainid (p, &p, end, NULL, &err);
7607 if (err != ERR_NONE)
7610 buffer_add_assemblyid (buf, domain, domain->entry_assembly);
7613 case CMD_APPDOMAIN_GET_CORLIB: {
7614 domain = decode_domainid (p, &p, end, NULL, &err);
7615 if (err != ERR_NONE)
7618 buffer_add_assemblyid (buf, domain, domain->domain->mbr.obj.vtable->klass->image->assembly);
7621 case CMD_APPDOMAIN_CREATE_STRING: {
7625 domain = decode_domainid (p, &p, end, NULL, &err);
7626 if (err != ERR_NONE)
7628 s = decode_string (p, &p, end);
7630 o = mono_string_new (domain, s);
7631 buffer_add_objid (buf, (MonoObject*)o);
7634 case CMD_APPDOMAIN_CREATE_BOXED_VALUE: {
7637 MonoDomain *domain2;
7640 domain = decode_domainid (p, &p, end, NULL, &err);
7641 if (err != ERR_NONE)
7643 klass = decode_typeid (p, &p, end, &domain2, &err);
7644 if (err != ERR_NONE)
7648 g_assert (domain == domain2);
7650 o = mono_object_new_checked (domain, klass, &error);
7651 mono_error_assert_ok (&error);
7653 err = decode_value (&klass->byval_arg, domain, (guint8 *)mono_object_unbox (o), p, &p, end);
7654 if (err != ERR_NONE)
7657 buffer_add_objid (buf, o);
7661 return ERR_NOT_IMPLEMENTED;
7668 assembly_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7674 ass = decode_assemblyid (p, &p, end, &domain, &err);
7675 if (err != ERR_NONE)
7679 case CMD_ASSEMBLY_GET_LOCATION: {
7680 buffer_add_string (buf, mono_image_get_filename (ass->image));
7683 case CMD_ASSEMBLY_GET_ENTRY_POINT: {
7687 if (ass->image->dynamic) {
7688 buffer_add_id (buf, 0);
7690 token = mono_image_get_entry_point (ass->image);
7692 buffer_add_id (buf, 0);
7695 m = mono_get_method_checked (ass->image, token, NULL, NULL, &error);
7697 mono_error_cleanup (&error); /* FIXME don't swallow the error */
7698 buffer_add_methodid (buf, domain, m);
7703 case CMD_ASSEMBLY_GET_MANIFEST_MODULE: {
7704 buffer_add_moduleid (buf, domain, ass->image);
7707 case CMD_ASSEMBLY_GET_OBJECT: {
7709 MonoObject *o = (MonoObject*)mono_assembly_get_object_checked (domain, ass, &error);
7711 mono_error_cleanup (&error); /* FIXME don't swallow the error */
7712 return ERR_INVALID_OBJECT;
7714 buffer_add_objid (buf, o);
7717 case CMD_ASSEMBLY_GET_TYPE: {
7719 char *s = decode_string (p, &p, end);
7720 gboolean ignorecase = decode_byte (p, &p, end);
7721 MonoTypeNameParse info;
7723 gboolean type_resolve, res;
7724 MonoDomain *d = mono_domain_get ();
7726 /* This is needed to be able to find referenced assemblies */
7727 res = mono_domain_set (domain, FALSE);
7730 if (!mono_reflection_parse_type (s, &info)) {
7733 if (info.assembly.name)
7735 t = mono_reflection_get_type_checked (ass->image, ass->image, &info, ignorecase, &type_resolve, &error);
7736 if (!is_ok (&error)) {
7737 mono_error_cleanup (&error); /* FIXME don't swallow the error */
7738 mono_reflection_free_type_info (&info);
7740 return ERR_INVALID_ARGUMENT;
7743 buffer_add_typeid (buf, domain, t ? mono_class_from_mono_type (t) : NULL);
7744 mono_reflection_free_type_info (&info);
7747 mono_domain_set (d, TRUE);
7751 case CMD_ASSEMBLY_GET_NAME: {
7753 MonoAssembly *mass = ass;
7755 name = g_strdup_printf (
7756 "%s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
7758 mass->aname.major, mass->aname.minor, mass->aname.build, mass->aname.revision,
7759 mass->aname.culture && *mass->aname.culture? mass->aname.culture: "neutral",
7760 mass->aname.public_key_token [0] ? (char *)mass->aname.public_key_token : "null",
7761 (mass->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
7763 buffer_add_string (buf, name);
7768 return ERR_NOT_IMPLEMENTED;
7775 module_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7781 case CMD_MODULE_GET_INFO: {
7782 MonoImage *image = decode_moduleid (p, &p, end, &domain, &err);
7785 basename = g_path_get_basename (image->name);
7786 buffer_add_string (buf, basename); // name
7787 buffer_add_string (buf, image->module_name); // scopename
7788 buffer_add_string (buf, image->name); // fqname
7789 buffer_add_string (buf, mono_image_get_guid (image)); // guid
7790 buffer_add_assemblyid (buf, domain, image->assembly); // assembly
7795 return ERR_NOT_IMPLEMENTED;
7802 field_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
7808 case CMD_FIELD_GET_INFO: {
7809 MonoClassField *f = decode_fieldid (p, &p, end, &domain, &err);
7811 buffer_add_string (buf, f->name);
7812 buffer_add_typeid (buf, domain, f->parent);
7813 buffer_add_typeid (buf, domain, mono_class_from_mono_type (f->type));
7814 buffer_add_int (buf, f->type->attrs);
7818 return ERR_NOT_IMPLEMENTED;
7825 buffer_add_cattr_arg (Buffer *buf, MonoType *t, MonoDomain *domain, MonoObject *val)
7827 if (val && val->vtable->klass == mono_defaults.monotype_class) {
7828 /* Special case these so the client doesn't have to handle Type objects */
7830 buffer_add_byte (buf, VALUE_TYPE_ID_TYPE);
7831 buffer_add_typeid (buf, domain, mono_class_from_mono_type (((MonoReflectionType*)val)->type));
7832 } else if (MONO_TYPE_IS_REFERENCE (t))
7833 buffer_add_value (buf, t, &val, domain);
7835 buffer_add_value (buf, t, mono_object_unbox (val), domain);
7839 buffer_add_cattrs (Buffer *buf, MonoDomain *domain, MonoImage *image, MonoClass *attr_klass, MonoCustomAttrInfo *cinfo)
7845 buffer_add_int (buf, 0);
7849 for (i = 0; i < cinfo->num_attrs; ++i) {
7850 if (!attr_klass || mono_class_has_parent (cinfo->attrs [i].ctor->klass, attr_klass))
7853 buffer_add_int (buf, nattrs);
7855 for (i = 0; i < cinfo->num_attrs; ++i) {
7856 MonoCustomAttrEntry *attr = &cinfo->attrs [i];
7857 if (!attr_klass || mono_class_has_parent (attr->ctor->klass, attr_klass)) {
7858 MonoArray *typed_args, *named_args;
7860 CattrNamedArg *arginfo = NULL;
7863 mono_reflection_create_custom_attr_data_args (image, attr->ctor, attr->data, attr->data_size, &typed_args, &named_args, &arginfo, &error);
7864 if (!mono_error_ok (&error)) {
7865 DEBUG_PRINTF (2, "[dbg] mono_reflection_create_custom_attr_data_args () failed with: '%s'\n", mono_error_get_message (&error));
7866 mono_error_cleanup (&error);
7867 return ERR_LOADER_ERROR;
7870 buffer_add_methodid (buf, domain, attr->ctor);
7874 buffer_add_int (buf, mono_array_length (typed_args));
7875 for (j = 0; j < mono_array_length (typed_args); ++j) {
7876 MonoObject *val = mono_array_get (typed_args, MonoObject*, j);
7878 t = mono_method_signature (attr->ctor)->params [j];
7880 buffer_add_cattr_arg (buf, t, domain, val);
7883 buffer_add_int (buf, 0);
7888 buffer_add_int (buf, mono_array_length (named_args));
7890 for (j = 0; j < mono_array_length (named_args); ++j) {
7891 MonoObject *val = mono_array_get (named_args, MonoObject*, j);
7893 if (arginfo [j].prop) {
7894 buffer_add_byte (buf, 0x54);
7895 buffer_add_propertyid (buf, domain, arginfo [j].prop);
7896 } else if (arginfo [j].field) {
7897 buffer_add_byte (buf, 0x53);
7898 buffer_add_fieldid (buf, domain, arginfo [j].field);
7900 g_assert_not_reached ();
7903 buffer_add_cattr_arg (buf, arginfo [j].type, domain, val);
7906 buffer_add_int (buf, 0);
7915 /* FIXME: Code duplication with icall.c */
7917 collect_interfaces (MonoClass *klass, GHashTable *ifaces, MonoError *error)
7922 mono_class_setup_interfaces (klass, error);
7923 if (!mono_error_ok (error))
7926 for (i = 0; i < klass->interface_count; i++) {
7927 ic = klass->interfaces [i];
7928 g_hash_table_insert (ifaces, ic, ic);
7930 collect_interfaces (ic, ifaces, error);
7931 if (!mono_error_ok (error))
7937 type_commands_internal (int command, MonoClass *klass, MonoDomain *domain, guint8 *p, guint8 *end, Buffer *buf)
7949 case CMD_TYPE_GET_INFO: {
7950 buffer_add_string (buf, klass->name_space);
7951 buffer_add_string (buf, klass->name);
7953 name = mono_type_get_name_full (&klass->byval_arg, MONO_TYPE_NAME_FORMAT_FULL_NAME);
7954 buffer_add_string (buf, name);
7956 buffer_add_assemblyid (buf, domain, klass->image->assembly);
7957 buffer_add_moduleid (buf, domain, klass->image);
7958 buffer_add_typeid (buf, domain, klass->parent);
7959 if (klass->rank || klass->byval_arg.type == MONO_TYPE_PTR)
7960 buffer_add_typeid (buf, domain, klass->element_class);
7962 buffer_add_id (buf, 0);
7963 buffer_add_int (buf, klass->type_token);
7964 buffer_add_byte (buf, klass->rank);
7965 buffer_add_int (buf, klass->flags);
7967 type = &klass->byval_arg;
7968 // FIXME: Can't decide whenever a class represents a byref type
7971 if (type->type == MONO_TYPE_PTR)
7973 if (!type->byref && (((type->type >= MONO_TYPE_BOOLEAN) && (type->type <= MONO_TYPE_R8)) || (type->type == MONO_TYPE_I) || (type->type == MONO_TYPE_U)))
7975 if (type->type == MONO_TYPE_VALUETYPE)
7977 if (klass->enumtype)
7979 if (klass->generic_container)
7981 if (klass->generic_container || klass->generic_class)
7983 buffer_add_byte (buf, b);
7986 while ((nested = mono_class_get_nested_types (klass, &iter)))
7988 buffer_add_int (buf, nnested);
7990 while ((nested = mono_class_get_nested_types (klass, &iter)))
7991 buffer_add_typeid (buf, domain, nested);
7992 if (CHECK_PROTOCOL_VERSION (2, 12)) {
7993 if (klass->generic_container)
7994 buffer_add_typeid (buf, domain, klass);
7995 else if (klass->generic_class)
7996 buffer_add_typeid (buf, domain, klass->generic_class->container_class);
7998 buffer_add_id (buf, 0);
8000 if (CHECK_PROTOCOL_VERSION (2, 15)) {
8003 if (klass->generic_class) {
8004 MonoGenericInst *inst = klass->generic_class->context.class_inst;
8006 count = inst->type_argc;
8007 buffer_add_int (buf, count);
8008 for (i = 0; i < count; i++)
8009 buffer_add_typeid (buf, domain, mono_class_from_mono_type (inst->type_argv [i]));
8010 } else if (klass->generic_container) {
8011 MonoGenericContainer *container = klass->generic_container;
8014 count = container->type_argc;
8015 buffer_add_int (buf, count);
8016 for (i = 0; i < count; i++) {
8017 pklass = mono_class_from_generic_parameter_internal (mono_generic_container_get_param (container, i));
8018 buffer_add_typeid (buf, domain, pklass);
8021 buffer_add_int (buf, 0);
8026 case CMD_TYPE_GET_METHODS: {
8029 gpointer iter = NULL;
8032 mono_class_setup_methods (klass);
8034 nmethods = mono_class_num_methods (klass);
8036 buffer_add_int (buf, nmethods);
8038 while ((m = mono_class_get_methods (klass, &iter))) {
8039 buffer_add_methodid (buf, domain, m);
8042 g_assert (i == nmethods);
8045 case CMD_TYPE_GET_FIELDS: {
8048 gpointer iter = NULL;
8051 nfields = mono_class_num_fields (klass);
8053 buffer_add_int (buf, nfields);
8055 while ((f = mono_class_get_fields (klass, &iter))) {
8056 buffer_add_fieldid (buf, domain, f);
8057 buffer_add_string (buf, f->name);
8058 buffer_add_typeid (buf, domain, mono_class_from_mono_type (f->type));
8059 buffer_add_int (buf, f->type->attrs);
8062 g_assert (i == nfields);
8065 case CMD_TYPE_GET_PROPERTIES: {
8068 gpointer iter = NULL;
8071 nprops = mono_class_num_properties (klass);
8073 buffer_add_int (buf, nprops);
8075 while ((p = mono_class_get_properties (klass, &iter))) {
8076 buffer_add_propertyid (buf, domain, p);
8077 buffer_add_string (buf, p->name);
8078 buffer_add_methodid (buf, domain, p->get);
8079 buffer_add_methodid (buf, domain, p->set);
8080 buffer_add_int (buf, p->attrs);
8083 g_assert (i == nprops);
8086 case CMD_TYPE_GET_CATTRS: {
8087 MonoClass *attr_klass;
8088 MonoCustomAttrInfo *cinfo;
8090 attr_klass = decode_typeid (p, &p, end, NULL, &err);
8091 /* attr_klass can be NULL */
8092 if (err != ERR_NONE)
8095 cinfo = mono_custom_attrs_from_class_checked (klass, &error);
8096 if (!is_ok (&error)) {
8097 mono_error_cleanup (&error); /* FIXME don't swallow the error message */
8098 return ERR_LOADER_ERROR;
8101 err = buffer_add_cattrs (buf, domain, klass->image, attr_klass, cinfo);
8102 if (err != ERR_NONE)
8106 case CMD_TYPE_GET_FIELD_CATTRS: {
8107 MonoClass *attr_klass;
8108 MonoCustomAttrInfo *cinfo;
8109 MonoClassField *field;
8111 field = decode_fieldid (p, &p, end, NULL, &err);
8112 if (err != ERR_NONE)
8114 attr_klass = decode_typeid (p, &p, end, NULL, &err);
8115 if (err != ERR_NONE)
8118 cinfo = mono_custom_attrs_from_field_checked (klass, field, &error);
8119 if (!is_ok (&error)) {
8120 mono_error_cleanup (&error); /* FIXME don't swallow the error message */
8121 return ERR_LOADER_ERROR;
8124 err = buffer_add_cattrs (buf, domain, klass->image, attr_klass, cinfo);
8125 if (err != ERR_NONE)
8129 case CMD_TYPE_GET_PROPERTY_CATTRS: {
8130 MonoClass *attr_klass;
8131 MonoCustomAttrInfo *cinfo;
8134 prop = decode_propertyid (p, &p, end, NULL, &err);
8135 if (err != ERR_NONE)
8137 attr_klass = decode_typeid (p, &p, end, NULL, &err);
8138 if (err != ERR_NONE)
8141 cinfo = mono_custom_attrs_from_property_checked (klass, prop, &error);
8142 if (!is_ok (&error)) {
8143 mono_error_cleanup (&error); /* FIXME don't swallow the error message */
8144 return ERR_LOADER_ERROR;
8147 err = buffer_add_cattrs (buf, domain, klass->image, attr_klass, cinfo);
8148 if (err != ERR_NONE)
8152 case CMD_TYPE_GET_VALUES:
8153 case CMD_TYPE_GET_VALUES_2: {
8160 MonoThread *thread_obj;
8161 MonoInternalThread *thread = NULL;
8162 guint32 special_static_type;
8164 if (command == CMD_TYPE_GET_VALUES_2) {
8165 int objid = decode_objid (p, &p, end);
8168 err = get_object (objid, (MonoObject**)&thread_obj);
8169 if (err != ERR_NONE)
8172 thread = THREAD_TO_INTERNAL (thread_obj);
8175 len = decode_int (p, &p, end);
8176 for (i = 0; i < len; ++i) {
8177 f = decode_fieldid (p, &p, end, NULL, &err);
8178 if (err != ERR_NONE)
8181 if (!(f->type->attrs & FIELD_ATTRIBUTE_STATIC))
8182 return ERR_INVALID_FIELDID;
8183 special_static_type = mono_class_field_get_special_static_type (f);
8184 if (special_static_type != SPECIAL_STATIC_NONE) {
8185 if (!(thread && special_static_type == SPECIAL_STATIC_THREAD))
8186 return ERR_INVALID_FIELDID;
8189 /* Check that the field belongs to the object */
8191 for (k = klass; k; k = k->parent) {
8192 if (k == f->parent) {
8198 return ERR_INVALID_FIELDID;
8200 vtable = mono_class_vtable (domain, f->parent);
8201 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
8202 mono_field_static_get_value_for_thread (thread ? thread : mono_thread_internal_current (), vtable, f, val, &error);
8203 if (!is_ok (&error))
8204 return ERR_INVALID_FIELDID;
8205 buffer_add_value (buf, f->type, val, domain);
8210 case CMD_TYPE_SET_VALUES: {
8218 len = decode_int (p, &p, end);
8219 for (i = 0; i < len; ++i) {
8220 f = decode_fieldid (p, &p, end, NULL, &err);
8221 if (err != ERR_NONE)
8224 if (!(f->type->attrs & FIELD_ATTRIBUTE_STATIC))
8225 return ERR_INVALID_FIELDID;
8226 if (mono_class_field_is_special_static (f))
8227 return ERR_INVALID_FIELDID;
8229 /* Check that the field belongs to the object */
8231 for (k = klass; k; k = k->parent) {
8232 if (k == f->parent) {
8238 return ERR_INVALID_FIELDID;
8240 // FIXME: Check for literal/const
8242 vtable = mono_class_vtable (domain, f->parent);
8243 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
8244 err = decode_value (f->type, domain, val, p, &p, end);
8245 if (err != ERR_NONE) {
8249 if (MONO_TYPE_IS_REFERENCE (f->type))
8250 mono_field_static_set_value (vtable, f, *(gpointer*)val);
8252 mono_field_static_set_value (vtable, f, val);
8257 case CMD_TYPE_GET_OBJECT: {
8258 MonoObject *o = (MonoObject*)mono_type_get_object_checked (domain, &klass->byval_arg, &error);
8259 if (!mono_error_ok (&error)) {
8260 mono_error_cleanup (&error);
8261 return ERR_INVALID_OBJECT;
8263 buffer_add_objid (buf, o);
8266 case CMD_TYPE_GET_SOURCE_FILES:
8267 case CMD_TYPE_GET_SOURCE_FILES_2: {
8268 char *source_file, *base;
8272 files = get_source_files_for_type (klass);
8274 buffer_add_int (buf, files->len);
8275 for (i = 0; i < files->len; ++i) {
8276 source_file = (char *)g_ptr_array_index (files, i);
8277 if (command == CMD_TYPE_GET_SOURCE_FILES_2) {
8278 buffer_add_string (buf, source_file);
8280 base = dbg_path_get_basename (source_file);
8281 buffer_add_string (buf, base);
8284 g_free (source_file);
8286 g_ptr_array_free (files, TRUE);
8289 case CMD_TYPE_IS_ASSIGNABLE_FROM: {
8290 MonoClass *oklass = decode_typeid (p, &p, end, NULL, &err);
8292 if (err != ERR_NONE)
8294 if (mono_class_is_assignable_from (klass, oklass))
8295 buffer_add_byte (buf, 1);
8297 buffer_add_byte (buf, 0);
8300 case CMD_TYPE_GET_METHODS_BY_NAME_FLAGS: {
8301 char *name = decode_string (p, &p, end);
8302 int i, flags = decode_int (p, &p, end);
8303 MonoException *ex = NULL;
8304 GPtrArray *array = mono_class_get_methods_by_name (klass, name, flags & ~BINDING_FLAGS_IGNORE_CASE, (flags & BINDING_FLAGS_IGNORE_CASE) != 0, TRUE, &ex);
8307 return ERR_LOADER_ERROR;
8308 buffer_add_int (buf, array->len);
8309 for (i = 0; i < array->len; ++i) {
8310 MonoMethod *method = (MonoMethod *)g_ptr_array_index (array, i);
8311 buffer_add_methodid (buf, domain, method);
8314 g_ptr_array_free (array, TRUE);
8318 case CMD_TYPE_GET_INTERFACES: {
8320 GHashTable *iface_hash = g_hash_table_new (NULL, NULL);
8321 MonoClass *tclass, *iface;
8322 GHashTableIter iter;
8326 for (parent = tclass; parent; parent = parent->parent) {
8327 mono_class_setup_interfaces (parent, &error);
8328 if (!mono_error_ok (&error))
8329 return ERR_LOADER_ERROR;
8330 collect_interfaces (parent, iface_hash, &error);
8331 if (!mono_error_ok (&error))
8332 return ERR_LOADER_ERROR;
8335 buffer_add_int (buf, g_hash_table_size (iface_hash));
8337 g_hash_table_iter_init (&iter, iface_hash);
8338 while (g_hash_table_iter_next (&iter, NULL, (void**)&iface))
8339 buffer_add_typeid (buf, domain, iface);
8340 g_hash_table_destroy (iface_hash);
8343 case CMD_TYPE_GET_INTERFACE_MAP: {
8344 int tindex, ioffset;
8345 gboolean variance_used;
8347 int len, nmethods, i;
8351 len = decode_int (p, &p, end);
8352 mono_class_setup_vtable (klass);
8354 for (tindex = 0; tindex < len; ++tindex) {
8355 iclass = decode_typeid (p, &p, end, NULL, &err);
8356 if (err != ERR_NONE)
8359 ioffset = mono_class_interface_offset_with_variance (klass, iclass, &variance_used);
8361 return ERR_INVALID_ARGUMENT;
8363 nmethods = mono_class_num_methods (iclass);
8364 buffer_add_int (buf, nmethods);
8367 while ((method = mono_class_get_methods (iclass, &iter))) {
8368 buffer_add_methodid (buf, domain, method);
8370 for (i = 0; i < nmethods; ++i)
8371 buffer_add_methodid (buf, domain, klass->vtable [i + ioffset]);
8375 case CMD_TYPE_IS_INITIALIZED: {
8376 MonoVTable *vtable = mono_class_vtable (domain, klass);
8379 buffer_add_int (buf, (vtable->initialized || vtable->init_failed) ? 1 : 0);
8381 buffer_add_int (buf, 0);
8384 case CMD_TYPE_CREATE_INSTANCE: {
8388 obj = mono_object_new_checked (domain, klass, &error);
8389 mono_error_assert_ok (&error);
8390 buffer_add_objid (buf, obj);
8394 return ERR_NOT_IMPLEMENTED;
8401 type_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8404 MonoDomain *old_domain;
8408 klass = decode_typeid (p, &p, end, &domain, &err);
8409 if (err != ERR_NONE)
8412 old_domain = mono_domain_get ();
8414 mono_domain_set (domain, TRUE);
8416 err = type_commands_internal (command, klass, domain, p, end, buf);
8418 mono_domain_set (old_domain, TRUE);
8424 method_commands_internal (int command, MonoMethod *method, MonoDomain *domain, guint8 *p, guint8 *end, Buffer *buf)
8426 MonoMethodHeader *header;
8430 case CMD_METHOD_GET_NAME: {
8431 buffer_add_string (buf, method->name);
8434 case CMD_METHOD_GET_DECLARING_TYPE: {
8435 buffer_add_typeid (buf, domain, method->klass);
8438 case CMD_METHOD_GET_DEBUG_INFO: {
8440 MonoDebugMethodInfo *minfo;
8442 int i, j, n_il_offsets;
8444 GPtrArray *source_file_list;
8445 MonoSymSeqPoint *sym_seq_points;
8447 header = mono_method_get_header_checked (method, &error);
8449 mono_error_cleanup (&error); /* FIXME don't swallow the error */
8450 buffer_add_int (buf, 0);
8451 buffer_add_string (buf, "");
8452 buffer_add_int (buf, 0);
8456 minfo = mono_debug_lookup_method (method);
8458 buffer_add_int (buf, header->code_size);
8459 buffer_add_string (buf, "");
8460 buffer_add_int (buf, 0);
8461 mono_metadata_free_mh (header);
8465 mono_debug_get_seq_points (minfo, &source_file, &source_file_list, &source_files, &sym_seq_points, &n_il_offsets);
8466 buffer_add_int (buf, header->code_size);
8467 if (CHECK_PROTOCOL_VERSION (2, 13)) {
8468 buffer_add_int (buf, source_file_list->len);
8469 for (i = 0; i < source_file_list->len; ++i) {
8470 MonoDebugSourceInfo *sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, i);
8471 buffer_add_string (buf, sinfo->source_file);
8472 if (CHECK_PROTOCOL_VERSION (2, 14)) {
8473 for (j = 0; j < 16; ++j)
8474 buffer_add_byte (buf, sinfo->hash [j]);
8478 buffer_add_string (buf, source_file);
8480 buffer_add_int (buf, n_il_offsets);
8481 DEBUG_PRINTF (10, "Line number table for method %s:\n", mono_method_full_name (method, TRUE));
8482 for (i = 0; i < n_il_offsets; ++i) {
8483 MonoSymSeqPoint *sp = &sym_seq_points [i];
8484 const char *srcfile = "";
8486 if (source_files [i] != -1) {
8487 MonoDebugSourceInfo *sinfo = (MonoDebugSourceInfo *)g_ptr_array_index (source_file_list, source_files [i]);
8488 srcfile = sinfo->source_file;
8490 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);
8491 buffer_add_int (buf, sp->il_offset);
8492 buffer_add_int (buf, sp->line);
8493 if (CHECK_PROTOCOL_VERSION (2, 13))
8494 buffer_add_int (buf, source_files [i]);
8495 if (CHECK_PROTOCOL_VERSION (2, 19))
8496 buffer_add_int (buf, sp->column);
8497 if (CHECK_PROTOCOL_VERSION (2, 32)) {
8498 buffer_add_int (buf, sp->end_line);
8499 buffer_add_int (buf, sp->end_column);
8502 g_free (source_file);
8503 g_free (source_files);
8504 g_free (sym_seq_points);
8505 g_ptr_array_free (source_file_list, TRUE);
8506 mono_metadata_free_mh (header);
8509 case CMD_METHOD_GET_PARAM_INFO: {
8510 MonoMethodSignature *sig = mono_method_signature (method);
8514 /* FIXME: mono_class_from_mono_type () and byrefs */
8516 /* FIXME: Use a smaller encoding */
8517 buffer_add_int (buf, sig->call_convention);
8518 buffer_add_int (buf, sig->param_count);
8519 buffer_add_int (buf, sig->generic_param_count);
8520 buffer_add_typeid (buf, domain, mono_class_from_mono_type (sig->ret));
8521 for (i = 0; i < sig->param_count; ++i) {
8523 buffer_add_typeid (buf, domain, mono_class_from_mono_type (sig->params [i]));
8526 /* Emit parameter names */
8527 names = g_new (char *, sig->param_count);
8528 mono_method_get_param_names (method, (const char **) names);
8529 for (i = 0; i < sig->param_count; ++i)
8530 buffer_add_string (buf, names [i]);
8535 case CMD_METHOD_GET_LOCALS_INFO: {
8538 MonoDebugLocalsInfo *locals;
8539 int *locals_map = NULL;
8541 header = mono_method_get_header_checked (method, &error);
8543 mono_error_cleanup (&error); /* FIXME don't swallow the error */
8544 return ERR_INVALID_ARGUMENT;
8547 locals = mono_debug_lookup_locals (method);
8549 buffer_add_int (buf, header->num_locals);
8551 for (i = 0; i < header->num_locals; ++i) {
8552 buffer_add_typeid (buf, domain, mono_class_from_mono_type (header->locals [i]));
8555 for (i = 0; i < header->num_locals; ++i) {
8557 sprintf (lname, "V_%d", i);
8558 buffer_add_string (buf, lname);
8561 for (i = 0; i < header->num_locals; ++i) {
8562 buffer_add_int (buf, 0);
8563 buffer_add_int (buf, header->code_size);
8566 num_locals = locals->num_locals;
8567 buffer_add_int (buf, num_locals);
8570 for (i = 0; i < num_locals; ++i) {
8571 g_assert (locals->locals [i].index < header->num_locals);
8572 buffer_add_typeid (buf, domain, mono_class_from_mono_type (header->locals [locals->locals [i].index]));
8575 for (i = 0; i < num_locals; ++i)
8576 buffer_add_string (buf, locals->locals [i].name);
8578 for (i = 0; i < num_locals; ++i) {
8579 if (locals->locals [i].block) {
8580 buffer_add_int (buf, locals->locals [i].block->start_offset);
8581 buffer_add_int (buf, locals->locals [i].block->end_offset);
8583 buffer_add_int (buf, 0);
8584 buffer_add_int (buf, header->code_size);
8588 mono_metadata_free_mh (header);
8591 mono_debug_free_locals (locals);
8592 g_free (locals_map);
8596 case CMD_METHOD_GET_INFO:
8597 buffer_add_int (buf, method->flags);
8598 buffer_add_int (buf, method->iflags);
8599 buffer_add_int (buf, method->token);
8600 if (CHECK_PROTOCOL_VERSION (2, 12)) {
8602 if (method->is_generic)
8604 if (mono_method_signature (method)->generic_param_count)
8606 buffer_add_byte (buf, attrs);
8607 if (method->is_generic || method->is_inflated) {
8610 if (method->is_generic) {
8613 MonoMethodInflated *imethod = (MonoMethodInflated *)method;
8615 result = imethod->declaring;
8616 if (imethod->context.class_inst) {
8617 MonoClass *klass = ((MonoMethod *) imethod)->klass;
8618 /*Generic methods gets the context of the GTD.*/
8619 if (mono_class_get_context (klass)) {
8621 result = mono_class_inflate_generic_method_full_checked (result, klass, mono_class_get_context (klass), &error);
8622 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8627 buffer_add_methodid (buf, domain, result);
8629 buffer_add_id (buf, 0);
8631 if (CHECK_PROTOCOL_VERSION (2, 15)) {
8632 if (mono_method_signature (method)->generic_param_count) {
8635 if (method->is_inflated) {
8636 MonoGenericInst *inst = mono_method_get_context (method)->method_inst;
8638 count = inst->type_argc;
8639 buffer_add_int (buf, count);
8641 for (i = 0; i < count; i++)
8642 buffer_add_typeid (buf, domain, mono_class_from_mono_type (inst->type_argv [i]));
8644 buffer_add_int (buf, 0);
8646 } else if (method->is_generic) {
8647 MonoGenericContainer *container = mono_method_get_generic_container (method);
8649 count = mono_method_signature (method)->generic_param_count;
8650 buffer_add_int (buf, count);
8651 for (i = 0; i < count; i++) {
8652 MonoGenericParam *param = mono_generic_container_get_param (container, i);
8653 MonoClass *pklass = mono_class_from_generic_parameter_internal (param);
8654 buffer_add_typeid (buf, domain, pklass);
8657 buffer_add_int (buf, 0);
8660 buffer_add_int (buf, 0);
8665 case CMD_METHOD_GET_BODY: {
8669 header = mono_method_get_header_checked (method, &error);
8671 mono_error_cleanup (&error); /* FIXME don't swallow the error */
8672 buffer_add_int (buf, 0);
8674 if (CHECK_PROTOCOL_VERSION (2, 18))
8675 buffer_add_int (buf, 0);
8677 buffer_add_int (buf, header->code_size);
8678 for (i = 0; i < header->code_size; ++i)
8679 buffer_add_byte (buf, header->code [i]);
8681 if (CHECK_PROTOCOL_VERSION (2, 18)) {
8682 buffer_add_int (buf, header->num_clauses);
8683 for (i = 0; i < header->num_clauses; ++i) {
8684 MonoExceptionClause *clause = &header->clauses [i];
8686 buffer_add_int (buf, clause->flags);
8687 buffer_add_int (buf, clause->try_offset);
8688 buffer_add_int (buf, clause->try_len);
8689 buffer_add_int (buf, clause->handler_offset);
8690 buffer_add_int (buf, clause->handler_len);
8691 if (clause->flags == MONO_EXCEPTION_CLAUSE_NONE)
8692 buffer_add_typeid (buf, domain, clause->data.catch_class);
8693 else if (clause->flags == MONO_EXCEPTION_CLAUSE_FILTER)
8694 buffer_add_int (buf, clause->data.filter_offset);
8698 mono_metadata_free_mh (header);
8703 case CMD_METHOD_RESOLVE_TOKEN: {
8704 guint32 token = decode_int (p, &p, end);
8707 switch (mono_metadata_token_code (token)) {
8708 case MONO_TOKEN_STRING: {
8712 s = mono_ldstr (domain, method->klass->image, mono_metadata_token_index (token));
8715 s2 = mono_string_to_utf8 (s);
8717 buffer_add_byte (buf, TOKEN_TYPE_STRING);
8718 buffer_add_string (buf, s2);
8724 MonoClass *handle_class;
8726 if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD) {
8727 val = mono_method_get_wrapper_data (method, token);
8728 handle_class = (MonoClass *)mono_method_get_wrapper_data (method, token + 1);
8730 if (handle_class == NULL) {
8731 // Can't figure out the token type
8732 buffer_add_byte (buf, TOKEN_TYPE_UNKNOWN);
8737 val = mono_ldtoken_checked (method->klass->image, token, &handle_class, NULL, &error);
8739 g_error ("Could not load token due to %s", mono_error_get_message (&error));
8742 if (handle_class == mono_defaults.typehandle_class) {
8743 buffer_add_byte (buf, TOKEN_TYPE_TYPE);
8744 if (method->wrapper_type == MONO_WRAPPER_DYNAMIC_METHOD)
8745 buffer_add_typeid (buf, domain, (MonoClass *) val);
8747 buffer_add_typeid (buf, domain, mono_class_from_mono_type ((MonoType*)val));
8748 } else if (handle_class == mono_defaults.fieldhandle_class) {
8749 buffer_add_byte (buf, TOKEN_TYPE_FIELD);
8750 buffer_add_fieldid (buf, domain, (MonoClassField *)val);
8751 } else if (handle_class == mono_defaults.methodhandle_class) {
8752 buffer_add_byte (buf, TOKEN_TYPE_METHOD);
8753 buffer_add_methodid (buf, domain, (MonoMethod *)val);
8754 } else if (handle_class == mono_defaults.string_class) {
8757 s = mono_string_to_utf8 ((MonoString *)val);
8758 buffer_add_byte (buf, TOKEN_TYPE_STRING);
8759 buffer_add_string (buf, s);
8762 g_assert_not_reached ();
8769 case CMD_METHOD_GET_CATTRS: {
8771 MonoClass *attr_klass;
8772 MonoCustomAttrInfo *cinfo;
8774 attr_klass = decode_typeid (p, &p, end, NULL, &err);
8775 /* attr_klass can be NULL */
8776 if (err != ERR_NONE)
8779 cinfo = mono_custom_attrs_from_method_checked (method, &error);
8780 if (!is_ok (&error)) {
8781 mono_error_cleanup (&error); /* FIXME don't swallow the error message */
8782 return ERR_LOADER_ERROR;
8785 err = buffer_add_cattrs (buf, domain, method->klass->image, attr_klass, cinfo);
8786 if (err != ERR_NONE)
8790 case CMD_METHOD_MAKE_GENERIC_METHOD: {
8792 MonoType **type_argv;
8796 MonoGenericInst *ginst;
8797 MonoGenericContext tmp_context;
8798 MonoMethod *inflated;
8800 type_argc = decode_int (p, &p, end);
8801 type_argv = g_new0 (MonoType*, type_argc);
8802 for (i = 0; i < type_argc; ++i) {
8803 klass = decode_typeid (p, &p, end, &d, &err);
8804 if (err != ERR_NONE) {
8810 return ERR_INVALID_ARGUMENT;
8812 type_argv [i] = &klass->byval_arg;
8814 ginst = mono_metadata_get_generic_inst (type_argc, type_argv);
8816 tmp_context.class_inst = method->klass->generic_class ? method->klass->generic_class->context.class_inst : NULL;
8817 tmp_context.method_inst = ginst;
8819 inflated = mono_class_inflate_generic_method_checked (method, &tmp_context, &error);
8820 g_assert (mono_error_ok (&error)); /* FIXME don't swallow the error */
8821 if (!mono_verifier_is_method_valid_generic_instantiation (inflated))
8822 return ERR_INVALID_ARGUMENT;
8823 buffer_add_methodid (buf, domain, inflated);
8827 return ERR_NOT_IMPLEMENTED;
8834 method_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8837 MonoDomain *old_domain;
8841 method = decode_methodid (p, &p, end, &domain, &err);
8842 if (err != ERR_NONE)
8845 old_domain = mono_domain_get ();
8847 mono_domain_set (domain, TRUE);
8849 err = method_commands_internal (command, method, domain, p, end, buf);
8851 mono_domain_set (old_domain, TRUE);
8857 thread_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
8859 int objid = decode_objid (p, &p, end);
8861 MonoThread *thread_obj;
8862 MonoInternalThread *thread;
8864 err = get_object (objid, (MonoObject**)&thread_obj);
8865 if (err != ERR_NONE)
8868 thread = THREAD_TO_INTERNAL (thread_obj);
8871 case CMD_THREAD_GET_NAME: {
8873 gunichar2 *s = mono_thread_get_name (thread, &name_len);
8876 buffer_add_int (buf, 0);
8881 name = g_utf16_to_utf8 (s, name_len, NULL, &len, NULL);
8883 buffer_add_int (buf, len);
8884 buffer_add_data (buf, (guint8*)name, len);
8889 case CMD_THREAD_GET_FRAME_INFO: {
8890 DebuggerTlsData *tls;
8891 int i, start_frame, length;
8893 // Wait for suspending if it already started
8894 // FIXME: Races with suspend_count
8895 while (!is_suspended ()) {
8897 wait_for_suspend ();
8901 wait_for_suspend ();
8902 if (!is_suspended ())
8903 return ERR_NOT_SUSPENDED;
8906 start_frame = decode_int (p, &p, end);
8907 length = decode_int (p, &p, end);
8909 if (start_frame != 0 || length != -1)
8910 return ERR_NOT_IMPLEMENTED;
8912 mono_loader_lock ();
8913 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
8914 mono_loader_unlock ();
8917 compute_frame_info (thread, tls);
8919 buffer_add_int (buf, tls->frame_count);
8920 for (i = 0; i < tls->frame_count; ++i) {
8921 buffer_add_int (buf, tls->frames [i]->id);
8922 buffer_add_methodid (buf, tls->frames [i]->domain, tls->frames [i]->actual_method);
8923 buffer_add_int (buf, tls->frames [i]->il_offset);
8925 * Instead of passing the frame type directly to the client, we associate
8926 * it with the previous frame using a set of flags. This avoids lots of
8927 * conditional code in the client, since a frame whose type isn't
8928 * FRAME_TYPE_MANAGED has no method, location, etc.
8930 buffer_add_byte (buf, tls->frames [i]->flags);
8935 case CMD_THREAD_GET_STATE:
8936 buffer_add_int (buf, thread->state);
8938 case CMD_THREAD_GET_INFO:
8939 buffer_add_byte (buf, thread->threadpool_thread);
8941 case CMD_THREAD_GET_ID:
8942 buffer_add_long (buf, (guint64)(gsize)thread);
8944 case CMD_THREAD_GET_TID:
8945 buffer_add_long (buf, (guint64)thread->tid);
8947 case CMD_THREAD_SET_IP: {
8948 DebuggerTlsData *tls;
8951 MonoSeqPointInfo *seq_points;
8956 method = decode_methodid (p, &p, end, &domain, &err);
8957 if (err != ERR_NONE)
8959 il_offset = decode_long (p, &p, end);
8961 while (!is_suspended ()) {
8963 wait_for_suspend ();
8966 mono_loader_lock ();
8967 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
8968 mono_loader_unlock ();
8971 compute_frame_info (thread, tls);
8972 if (tls->frame_count == 0 || tls->frames [0]->actual_method != method)
8973 return ERR_INVALID_ARGUMENT;
8975 found_sp = mono_find_seq_point (domain, method, il_offset, &seq_points, &sp);
8977 g_assert (seq_points);
8980 return ERR_INVALID_ARGUMENT;
8982 // FIXME: Check that the ip change is safe
8984 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);
8985 MONO_CONTEXT_SET_IP (&tls->restore_state.ctx, (guint8*)tls->frames [0]->ji->code_start + sp.native_offset);
8989 return ERR_NOT_IMPLEMENTED;
8996 frame_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9000 MonoThread *thread_obj;
9001 MonoInternalThread *thread;
9002 int pos, i, len, frame_idx;
9003 DebuggerTlsData *tls;
9005 MonoDebugMethodJitInfo *jit;
9006 MonoMethodSignature *sig;
9008 MonoMethodHeader *header;
9010 objid = decode_objid (p, &p, end);
9011 err = get_object (objid, (MonoObject**)&thread_obj);
9012 if (err != ERR_NONE)
9015 thread = THREAD_TO_INTERNAL (thread_obj);
9017 id = decode_id (p, &p, end);
9019 mono_loader_lock ();
9020 tls = (DebuggerTlsData *)mono_g_hash_table_lookup (thread_to_tls, thread);
9021 mono_loader_unlock ();
9024 for (i = 0; i < tls->frame_count; ++i) {
9025 if (tls->frames [i]->id == id)
9028 if (i == tls->frame_count)
9029 return ERR_INVALID_FRAMEID;
9032 frame = tls->frames [frame_idx];
9034 /* This is supported for frames without has_ctx etc. set */
9035 if (command == CMD_STACK_FRAME_GET_DOMAIN) {
9036 if (CHECK_PROTOCOL_VERSION (2, 38))
9037 buffer_add_domainid (buf, frame->domain);
9041 if (!frame->has_ctx)
9042 return ERR_ABSENT_INFORMATION;
9045 frame->jit = mono_debug_find_method (frame->api_method, frame->domain);
9046 if (!frame->jit && frame->api_method->is_inflated)
9047 frame->jit = mono_debug_find_method (mono_method_get_declaring_generic_method (frame->api_method), frame->domain);
9051 /* This could happen for aot images with no jit debug info */
9052 s = mono_method_full_name (frame->api_method, TRUE);
9053 DEBUG_PRINTF (1, "[dbg] No debug information found for '%s'.\n", s);
9055 return ERR_ABSENT_INFORMATION;
9060 sig = mono_method_signature (frame->actual_method);
9062 if (!mono_get_seq_points (frame->domain, frame->actual_method))
9064 * The method is probably from an aot image compiled without soft-debug, variables might be dead, etc.
9066 return ERR_ABSENT_INFORMATION;
9069 case CMD_STACK_FRAME_GET_VALUES: {
9071 len = decode_int (p, &p, end);
9072 header = mono_method_get_header_checked (frame->actual_method, &error);
9073 mono_error_assert_ok (&error); /* FIXME report error */
9075 for (i = 0; i < len; ++i) {
9076 pos = decode_int (p, &p, end);
9081 DEBUG_PRINTF (4, "[dbg] send arg %d.\n", pos);
9083 g_assert (pos >= 0 && pos < jit->num_params);
9085 add_var (buf, jit, sig->params [pos], &jit->params [pos], &frame->ctx, frame->domain, FALSE);
9087 MonoDebugLocalsInfo *locals;
9089 locals = mono_debug_lookup_locals (frame->method);
9091 g_assert (pos < locals->num_locals);
9092 pos = locals->locals [pos].index;
9093 mono_debug_free_locals (locals);
9095 g_assert (pos >= 0 && pos < jit->num_locals);
9097 DEBUG_PRINTF (4, "[dbg] send local %d.\n", pos);
9099 add_var (buf, jit, header->locals [pos], &jit->locals [pos], &frame->ctx, frame->domain, FALSE);
9102 mono_metadata_free_mh (header);
9105 case CMD_STACK_FRAME_GET_THIS: {
9106 if (frame->api_method->klass->valuetype) {
9107 if (!sig->hasthis) {
9108 MonoObject *p = NULL;
9109 buffer_add_value (buf, &mono_defaults.object_class->byval_arg, &p, frame->domain);
9111 add_var (buf, jit, &frame->actual_method->klass->this_arg, jit->this_var, &frame->ctx, frame->domain, TRUE);
9114 if (!sig->hasthis) {
9115 MonoObject *p = NULL;
9116 buffer_add_value (buf, &frame->actual_method->klass->byval_arg, &p, frame->domain);
9118 add_var (buf, jit, &frame->api_method->klass->byval_arg, jit->this_var, &frame->ctx, frame->domain, TRUE);
9123 case CMD_STACK_FRAME_SET_VALUES: {
9127 MonoDebugVarInfo *var;
9129 len = decode_int (p, &p, end);
9130 header = mono_method_get_header_checked (frame->actual_method, &error);
9131 mono_error_assert_ok (&error); /* FIXME report error */
9133 for (i = 0; i < len; ++i) {
9134 pos = decode_int (p, &p, end);
9139 g_assert (pos >= 0 && pos < jit->num_params);
9141 t = sig->params [pos];
9142 var = &jit->params [pos];
9144 MonoDebugLocalsInfo *locals;
9146 locals = mono_debug_lookup_locals (frame->method);
9148 g_assert (pos < locals->num_locals);
9149 pos = locals->locals [pos].index;
9150 mono_debug_free_locals (locals);
9152 g_assert (pos >= 0 && pos < jit->num_locals);
9154 t = header->locals [pos];
9155 var = &jit->locals [pos];
9158 if (MONO_TYPE_IS_REFERENCE (t))
9159 val_buf = (guint8 *)g_alloca (sizeof (MonoObject*));
9161 val_buf = (guint8 *)g_alloca (mono_class_instance_size (mono_class_from_mono_type (t)));
9162 err = decode_value (t, frame->domain, val_buf, p, &p, end);
9163 if (err != ERR_NONE)
9166 set_var (t, var, &frame->ctx, frame->domain, val_buf, frame->reg_locations, &tls->restore_state.ctx);
9168 mono_metadata_free_mh (header);
9171 case CMD_STACK_FRAME_GET_DOMAIN: {
9172 if (CHECK_PROTOCOL_VERSION (2, 38))
9173 buffer_add_domainid (buf, frame->domain);
9177 return ERR_NOT_IMPLEMENTED;
9184 array_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9187 int objid, index, len, i, esize;
9191 objid = decode_objid (p, &p, end);
9192 err = get_object (objid, (MonoObject**)&arr);
9193 if (err != ERR_NONE)
9197 case CMD_ARRAY_REF_GET_LENGTH:
9198 buffer_add_int (buf, arr->obj.vtable->klass->rank);
9200 buffer_add_int (buf, arr->max_length);
9201 buffer_add_int (buf, 0);
9203 for (i = 0; i < arr->obj.vtable->klass->rank; ++i) {
9204 buffer_add_int (buf, arr->bounds [i].length);
9205 buffer_add_int (buf, arr->bounds [i].lower_bound);
9209 case CMD_ARRAY_REF_GET_VALUES:
9210 index = decode_int (p, &p, end);
9211 len = decode_int (p, &p, end);
9213 g_assert (index >= 0 && len >= 0);
9214 // Reordered to avoid integer overflow
9215 g_assert (!(index > arr->max_length - len));
9217 esize = mono_array_element_size (arr->obj.vtable->klass);
9218 for (i = index; i < index + len; ++i) {
9219 elem = (gpointer*)((char*)arr->vector + (i * esize));
9220 buffer_add_value (buf, &arr->obj.vtable->klass->element_class->byval_arg, elem, arr->obj.vtable->domain);
9223 case CMD_ARRAY_REF_SET_VALUES:
9224 index = decode_int (p, &p, end);
9225 len = decode_int (p, &p, end);
9227 g_assert (index >= 0 && len >= 0);
9228 // Reordered to avoid integer overflow
9229 g_assert (!(index > arr->max_length - len));
9231 esize = mono_array_element_size (arr->obj.vtable->klass);
9232 for (i = index; i < index + len; ++i) {
9233 elem = (gpointer*)((char*)arr->vector + (i * esize));
9235 decode_value (&arr->obj.vtable->klass->element_class->byval_arg, arr->obj.vtable->domain, (guint8 *)elem, p, &p, end);
9239 return ERR_NOT_IMPLEMENTED;
9246 string_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9252 int i, index, length;
9254 gboolean use_utf16 = FALSE;
9256 objid = decode_objid (p, &p, end);
9257 err = get_object (objid, (MonoObject**)&str);
9258 if (err != ERR_NONE)
9262 case CMD_STRING_REF_GET_VALUE:
9263 if (CHECK_PROTOCOL_VERSION (2, 41)) {
9264 for (i = 0; i < mono_string_length (str); ++i)
9265 if (mono_string_chars (str)[i] == 0)
9267 buffer_add_byte (buf, use_utf16 ? 1 : 0);
9270 buffer_add_int (buf, mono_string_length (str) * 2);
9271 buffer_add_data (buf, (guint8*)mono_string_chars (str), mono_string_length (str) * 2);
9273 s = mono_string_to_utf8 (str);
9274 buffer_add_string (buf, s);
9278 case CMD_STRING_REF_GET_LENGTH:
9279 buffer_add_long (buf, mono_string_length (str));
9281 case CMD_STRING_REF_GET_CHARS:
9282 index = decode_long (p, &p, end);
9283 length = decode_long (p, &p, end);
9284 if (index > mono_string_length (str) - length)
9285 return ERR_INVALID_ARGUMENT;
9286 c = mono_string_chars (str) + index;
9287 for (i = 0; i < length; ++i)
9288 buffer_add_short (buf, c [i]);
9291 return ERR_NOT_IMPLEMENTED;
9298 object_commands (int command, guint8 *p, guint8 *end, Buffer *buf)
9309 if (command == CMD_OBJECT_REF_IS_COLLECTED) {
9310 objid = decode_objid (p, &p, end);
9311 err = get_object (objid, &obj);
9312 if (err != ERR_NONE)
9313 buffer_add_int (buf, 1);
9315 buffer_add_int (buf, 0);
9319 objid = decode_objid (p, &p, end);
9320 err = get_object (objid, &obj);
9321 if (err != ERR_NONE)
9324 MonoClass *obj_type;
9325 gboolean remote_obj = FALSE;
9327 obj_type = obj->vtable->klass;
9328 if (mono_class_is_transparent_proxy (obj_type)) {
9329 obj_type = ((MonoTransparentProxy *)obj)->remote_class->proxy_class;
9333 g_assert (obj_type);
9336 case CMD_OBJECT_REF_GET_TYPE:
9337 /* This handles transparent proxies too */
9338 buffer_add_typeid (buf, obj->vtable->domain, mono_class_from_mono_type (((MonoReflectionType*)obj->vtable->type)->type));
9340 case CMD_OBJECT_REF_GET_VALUES:
9341 len = decode_int (p, &p, end);
9343 for (i = 0; i < len; ++i) {
9344 MonoClassField *f = decode_fieldid (p, &p, end, NULL, &err);
9345 if (err != ERR_NONE)
9348 /* Check that the field belongs to the object */
9350 for (k = obj_type; k; k = k->parent) {
9351 if (k == f->parent) {
9357 return ERR_INVALID_FIELDID;
9359 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC) {
9363 if (mono_class_field_is_special_static (f))
9364 return ERR_INVALID_FIELDID;
9366 g_assert (f->type->attrs & FIELD_ATTRIBUTE_STATIC);
9367 vtable = mono_class_vtable (obj->vtable->domain, f->parent);
9368 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
9369 mono_field_static_get_value_checked (vtable, f, val, &error);
9370 if (!is_ok (&error)) {
9371 mono_error_cleanup (&error); /* FIXME report the error */
9372 return ERR_INVALID_OBJECT;
9374 buffer_add_value (buf, f->type, val, obj->vtable->domain);
9377 guint8 *field_value = NULL;
9378 void *field_storage = NULL;
9381 #ifndef DISABLE_REMOTING
9382 field_value = mono_load_remote_field_checked(obj, obj_type, f, &field_storage, &error);
9383 if (!is_ok (&error)) {
9384 mono_error_cleanup (&error); /* FIXME report the error */
9385 return ERR_INVALID_OBJECT;
9388 g_assert_not_reached ();
9391 field_value = (guint8*)obj + f->offset;
9393 buffer_add_value (buf, f->type, field_value, obj->vtable->domain);
9397 case CMD_OBJECT_REF_SET_VALUES:
9398 len = decode_int (p, &p, end);
9400 for (i = 0; i < len; ++i) {
9401 f = decode_fieldid (p, &p, end, NULL, &err);
9402 if (err != ERR_NONE)
9405 /* Check that the field belongs to the object */
9407 for (k = obj_type; k; k = k->parent) {
9408 if (k == f->parent) {
9414 return ERR_INVALID_FIELDID;
9416 if (f->type->attrs & FIELD_ATTRIBUTE_STATIC) {
9420 if (mono_class_field_is_special_static (f))
9421 return ERR_INVALID_FIELDID;
9423 g_assert (f->type->attrs & FIELD_ATTRIBUTE_STATIC);
9424 vtable = mono_class_vtable (obj->vtable->domain, f->parent);
9426 val = (guint8 *)g_malloc (mono_class_instance_size (mono_class_from_mono_type (f->type)));
9427 err = decode_value (f->type, obj->vtable->domain, val, p, &p, end);
9428 if (err != ERR_NONE) {
9432 mono_field_static_set_value (vtable, f, val);
9435 err = decode_value (f->type, obj->vtable->domain, (guint8*)obj + f->offset, p, &p, end);
9436 if (err != ERR_NONE)
9441 case CMD_OBJECT_REF_GET_ADDRESS:
9442 buffer_add_long (buf, (gssize)obj);
9444 case CMD_OBJECT_REF_GET_DOMAIN:
9445 buffer_add_domainid (buf, obj->vtable->domain);
9447 case CMD_OBJECT_REF_GET_INFO:
9448 buffer_add_typeid (buf, obj->vtable->domain, mono_class_from_mono_type (((MonoReflectionType*)obj->vtable->type)->type));
9449 buffer_add_domainid (buf, obj->vtable->domain);
9452 return ERR_NOT_IMPLEMENTED;
9459 command_set_to_string (CommandSet command_set)
9461 switch (command_set) {
9464 case CMD_SET_OBJECT_REF:
9465 return "OBJECT_REF";
9466 case CMD_SET_STRING_REF:
9467 return "STRING_REF";
9468 case CMD_SET_THREAD:
9470 case CMD_SET_ARRAY_REF:
9472 case CMD_SET_EVENT_REQUEST:
9473 return "EVENT_REQUEST";
9474 case CMD_SET_STACK_FRAME:
9475 return "STACK_FRAME";
9476 case CMD_SET_APPDOMAIN:
9478 case CMD_SET_ASSEMBLY:
9480 case CMD_SET_METHOD:
9484 case CMD_SET_MODULE:
9495 static const char* vm_cmds_str [] = {
9503 "SET_PROTOCOL_VERSION",
9506 "GET_TYPES_FOR_SOURCE_FILE",
9511 static const char* thread_cmds_str[] = {
9521 static const char* event_cmds_str[] = {
9524 "REQUEST_CLEAR_ALL_BREAKPOINTS"
9527 static const char* appdomain_cmds_str[] = {
9529 "GET_FRIENDLY_NAME",
9531 "GET_ENTRY_ASSEMBLY",
9534 "CREATE_BOXED_VALUE"
9537 static const char* assembly_cmds_str[] = {
9540 "GET_MANIFEST_MODULE",
9546 static const char* module_cmds_str[] = {
9550 static const char* field_cmds_str[] = {
9554 static const char* method_cmds_str[] = {
9556 "GET_DECLARING_TYPE",
9564 "MAKE_GENERIC_METHOD"
9567 static const char* type_cmds_str[] = {
9575 "IS_ASSIGNABLE_FROM",
9579 "GET_PROPERTY_CATTRS",
9580 "GET_SOURCE_FILES_2",
9582 "GET_METHODS_BY_NAME_FLAGS",
9584 "GET_INTERFACE_MAP",
9588 static const char* stack_frame_cmds_str[] = {
9595 static const char* array_cmds_str[] = {
9601 static const char* string_cmds_str[] = {
9607 static const char* object_cmds_str[] = {
9618 cmd_to_string (CommandSet set, int command)
9626 cmds_len = G_N_ELEMENTS (vm_cmds_str);
9628 case CMD_SET_OBJECT_REF:
9629 cmds = object_cmds_str;
9630 cmds_len = G_N_ELEMENTS (object_cmds_str);
9632 case CMD_SET_STRING_REF:
9633 cmds = string_cmds_str;
9634 cmds_len = G_N_ELEMENTS (string_cmds_str);
9636 case CMD_SET_THREAD:
9637 cmds = thread_cmds_str;
9638 cmds_len = G_N_ELEMENTS (thread_cmds_str);
9640 case CMD_SET_ARRAY_REF:
9641 cmds = array_cmds_str;
9642 cmds_len = G_N_ELEMENTS (array_cmds_str);
9644 case CMD_SET_EVENT_REQUEST:
9645 cmds = event_cmds_str;
9646 cmds_len = G_N_ELEMENTS (event_cmds_str);
9648 case CMD_SET_STACK_FRAME:
9649 cmds = stack_frame_cmds_str;
9650 cmds_len = G_N_ELEMENTS (stack_frame_cmds_str);
9652 case CMD_SET_APPDOMAIN:
9653 cmds = appdomain_cmds_str;
9654 cmds_len = G_N_ELEMENTS (appdomain_cmds_str);
9656 case CMD_SET_ASSEMBLY:
9657 cmds = assembly_cmds_str;
9658 cmds_len = G_N_ELEMENTS (assembly_cmds_str);
9660 case CMD_SET_METHOD:
9661 cmds = method_cmds_str;
9662 cmds_len = G_N_ELEMENTS (method_cmds_str);
9665 cmds = type_cmds_str;
9666 cmds_len = G_N_ELEMENTS (type_cmds_str);
9668 case CMD_SET_MODULE:
9669 cmds = module_cmds_str;
9670 cmds_len = G_N_ELEMENTS (module_cmds_str);
9673 cmds = field_cmds_str;
9674 cmds_len = G_N_ELEMENTS (field_cmds_str);
9677 cmds = event_cmds_str;
9678 cmds_len = G_N_ELEMENTS (event_cmds_str);
9683 if (command > 0 && command <= cmds_len)
9684 return cmds [command - 1];
9690 wait_for_attach (void)
9692 #ifndef DISABLE_SOCKET_TRANSPORT
9693 if (listen_fd == -1) {
9694 DEBUG_PRINTF (1, "[dbg] Invalid listening socket\n");
9698 /* Block and wait for client connection */
9699 conn_fd = socket_transport_accept (listen_fd);
9701 DEBUG_PRINTF (1, "Accepted connection on %d\n", conn_fd);
9702 if (conn_fd == -1) {
9703 DEBUG_PRINTF (1, "[dbg] Bad client connection\n");
9707 g_assert_not_reached ();
9711 disconnected = !transport_handshake ();
9713 DEBUG_PRINTF (1, "Transport handshake failed!\n");
9723 * This thread handles communication with the debugger client using a JDWP
9726 static guint32 WINAPI
9727 debugger_thread (void *arg)
9730 int res, len, id, flags, command = 0;
9731 CommandSet command_set = (CommandSet)0;
9732 guint8 header [HEADER_LENGTH];
9733 guint8 *data, *p, *end;
9737 gboolean attach_failed = FALSE;
9738 gpointer attach_cookie, attach_dummy;
9740 DEBUG_PRINTF (1, "[dbg] Agent thread started, pid=%p\n", (gpointer) (gsize) mono_native_thread_id_get ());
9742 debugger_thread_id = mono_native_thread_id_get ();
9744 attach_cookie = mono_jit_thread_attach (mono_get_root_domain (), &attach_dummy);
9745 MonoInternalThread *thread = mono_thread_internal_current ();
9746 mono_thread_set_name_internal (thread, mono_string_new (mono_get_root_domain (), "Debugger agent"), TRUE, &error);
9747 mono_error_assert_ok (&error);
9749 thread->flags |= MONO_THREAD_FLAG_DONT_MANAGE;
9751 mono_set_is_debugger_attached (TRUE);
9753 if (agent_config.defer) {
9754 if (!wait_for_attach ()) {
9755 DEBUG_PRINTF (1, "[dbg] Can't attach, aborting debugger thread.\n");
9756 attach_failed = TRUE; // Don't abort process when we can't listen
9758 /* Send start event to client */
9759 process_profiler_event (EVENT_KIND_VM_START, mono_thread_get_main ());
9763 while (!attach_failed) {
9764 res = transport_recv (header, HEADER_LENGTH);
9766 /* This will break if the socket is closed during shutdown too */
9767 if (res != HEADER_LENGTH) {
9768 DEBUG_PRINTF (1, "[dbg] transport_recv () returned %d, expected %d.\n", res, HEADER_LENGTH);
9773 end = header + HEADER_LENGTH;
9775 len = decode_int (p, &p, end);
9776 id = decode_int (p, &p, end);
9777 flags = decode_byte (p, &p, end);
9778 command_set = (CommandSet)decode_byte (p, &p, end);
9779 command = decode_byte (p, &p, end);
9781 g_assert (flags == 0);
9784 const char *cmd_str;
9787 cmd_str = cmd_to_string (command_set, command);
9789 sprintf (cmd_num, "%d", command);
9793 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);
9796 data = (guint8 *)g_malloc (len - HEADER_LENGTH);
9797 if (len - HEADER_LENGTH > 0)
9799 res = transport_recv (data, len - HEADER_LENGTH);
9800 if (res != len - HEADER_LENGTH) {
9801 DEBUG_PRINTF (1, "[dbg] transport_recv () returned %d, expected %d.\n", res, len - HEADER_LENGTH);
9807 end = data + (len - HEADER_LENGTH);
9809 buffer_init (&buf, 128);
9814 /* Process the request */
9815 switch (command_set) {
9817 err = vm_commands (command, id, p, end, &buf);
9818 if (err == ERR_NONE && command == CMD_VM_INVOKE_METHOD)
9819 /* Sent after the invoke is complete */
9822 case CMD_SET_EVENT_REQUEST:
9823 err = event_commands (command, p, end, &buf);
9825 case CMD_SET_APPDOMAIN:
9826 err = domain_commands (command, p, end, &buf);
9828 case CMD_SET_ASSEMBLY:
9829 err = assembly_commands (command, p, end, &buf);
9831 case CMD_SET_MODULE:
9832 err = module_commands (command, p, end, &buf);
9835 err = field_commands (command, p, end, &buf);
9838 err = type_commands (command, p, end, &buf);
9840 case CMD_SET_METHOD:
9841 err = method_commands (command, p, end, &buf);
9843 case CMD_SET_THREAD:
9844 err = thread_commands (command, p, end, &buf);
9846 case CMD_SET_STACK_FRAME:
9847 err = frame_commands (command, p, end, &buf);
9849 case CMD_SET_ARRAY_REF:
9850 err = array_commands (command, p, end, &buf);
9852 case CMD_SET_STRING_REF:
9853 err = string_commands (command, p, end, &buf);
9855 case CMD_SET_OBJECT_REF:
9856 err = object_commands (command, p, end, &buf);
9859 err = ERR_NOT_IMPLEMENTED;
9862 if (command_set == CMD_SET_VM && command == CMD_VM_START_BUFFERING) {
9863 buffer_replies = TRUE;
9867 if (buffer_replies) {
9868 buffer_reply_packet (id, err, &buf);
9870 send_reply_packet (id, err, &buf);
9871 //DEBUG_PRINTF (1, "[dbg] Sent reply to %d [at=%lx].\n", id, (long)mono_100ns_ticks () / 10000);
9875 if (err == ERR_NONE && command_set == CMD_SET_VM && command == CMD_VM_STOP_BUFFERING) {
9876 send_buffered_reply_packets ();
9877 buffer_replies = FALSE;
9883 if (command_set == CMD_SET_VM && (command == CMD_VM_DISPOSE || command == CMD_VM_EXIT))
9887 mono_set_is_debugger_attached (FALSE);
9889 mono_coop_mutex_lock (&debugger_thread_exited_mutex);
9890 debugger_thread_exited = TRUE;
9891 mono_coop_cond_signal (&debugger_thread_exited_cond);
9892 mono_coop_mutex_unlock (&debugger_thread_exited_mutex);
9894 DEBUG_PRINTF (1, "[dbg] Debugger thread exited.\n");
9896 if (!attach_failed && command_set == CMD_SET_VM && command == CMD_VM_DISPOSE && !(vm_death_event_sent || mono_runtime_is_shutting_down ())) {
9897 DEBUG_PRINTF (2, "[dbg] Detached - restarting clean debugger thread.\n");
9898 start_debugger_thread ();
9901 mono_jit_thread_detach (attach_cookie, &attach_dummy);
9906 #else /* DISABLE_DEBUGGER_AGENT */
9909 mono_debugger_agent_parse_options (char *options)
9911 g_error ("This runtime is configured with the debugger agent disabled.");
9915 mono_debugger_agent_init (void)
9920 mono_debugger_agent_breakpoint_hit (void *sigctx)
9925 mono_debugger_agent_single_step_event (void *sigctx)
9930 mono_debugger_agent_free_domain_info (MonoDomain *domain)
9935 mono_debugger_agent_handle_exception (MonoException *ext, MonoContext *throw_ctx,
9936 MonoContext *catch_ctx)
9941 mono_debugger_agent_begin_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
9946 mono_debugger_agent_end_exception_filter (MonoException *exc, MonoContext *ctx, MonoContext *orig_ctx)
9951 mono_debugger_agent_user_break (void)
9957 mono_debugger_agent_debug_log (int level, MonoString *category, MonoString *message)
9962 mono_debugger_agent_debug_log_is_enabled (void)
9968 mono_debugger_agent_unhandled_exception (MonoException *exc)
9970 g_assert_not_reached ();
9974 debugger_agent_single_step_from_context (MonoContext *ctx)
9976 g_assert_not_reached ();
9980 debugger_agent_breakpoint_from_context (MonoContext *ctx)
9982 g_assert_not_reached ();