2 * debug-mini.c: Mini-specific debugging stuff.
5 * Martin Baulig (martin@ximian.com)
7 * (C) 2003 Ximian, Inc.
13 #include <mono/metadata/verify.h>
14 #include <mono/metadata/mono-config.h>
15 #include <mono/metadata/mono-debug.h>
16 #include <mono/metadata/appdomain.h>
17 #include <mono/metadata/threads-types.h>
19 #define _IN_THE_MONO_DEBUGGER
20 #include <mono/metadata/mono-debug-debugger.h>
21 #include "debug-mini.h"
23 #include <mono/utils/valgrind.h>
25 #ifdef MONO_DEBUGGER_SUPPORTED
26 #include <libgc/include/libgc-mono-debugger.h>
32 } MiniDebugBreakpointInfo;
36 MonoDebugMethodJitInfo *jit;
38 guint32 has_line_numbers;
39 guint32 breakpoint_id;
40 } MiniDebugMethodInfo;
43 MonoObject *last_exception;
44 guint32 stopped_on_exception : 1;
45 guint32 stopped_on_unhandled : 1;
46 } MonoDebuggerExceptionState;
49 MONO_DEBUGGER_THREAD_FLAGS_NONE = 0,
50 MONO_DEBUGGER_THREAD_FLAGS_INTERNAL = 1,
51 MONO_DEBUGGER_THREAD_FLAGS_THREADPOOL = 2
52 } MonoDebuggerThreadFlags;
55 MONO_DEBUGGER_INTERNAL_THREAD_FLAGS_NONE = 0,
56 MONO_DEBUGGER_INTERNAL_THREAD_FLAGS_IN_RUNTIME_INVOKE = 1,
57 MONO_DEBUGGER_INTERNAL_THREAD_FLAGS_ABORT_REQUESTED = 2
58 } MonoDebuggerInternalThreadFlags;
60 struct _MonoDebuggerThreadInfo {
65 guint64 extended_notifications;
68 MonoDebuggerThreadInfo *next;
71 * The stack bounds are only used when reading a core file.
74 guint64 signal_stack_start;
76 guint32 signal_stack_size;
81 * The debugger doesn't access anything beyond this point.
83 MonoDebuggerExceptionState exception_state;
85 guint32 internal_flags;
87 MonoJitTlsData *jit_tls;
88 MonoInternalThread *thread;
92 gpointer stack_pointer;
93 MonoObject *exception_obj;
95 guint32 stop_unhandled;
96 } MonoDebuggerExceptionInfo;
98 MonoDebuggerThreadInfo *mono_debugger_thread_table = NULL;
101 record_line_number (MiniDebugMethodInfo *info, guint32 address, guint32 offset)
103 MonoDebugLineNumberEntry lne;
105 lne.native_offset = address;
106 lne.il_offset = offset;
108 g_array_append_val (info->line_numbers, lne);
113 mono_debug_init_method (MonoCompile *cfg, MonoBasicBlock *start_block, guint32 breakpoint_id)
115 MiniDebugMethodInfo *info;
117 if (mono_debug_format == MONO_DEBUG_FORMAT_NONE)
120 info = g_new0 (MiniDebugMethodInfo, 1);
121 info->breakpoint_id = breakpoint_id;
123 cfg->debug_info = info;
127 mono_debug_open_method (MonoCompile *cfg)
129 MiniDebugMethodInfo *info;
130 MonoDebugMethodJitInfo *jit;
131 MonoMethodHeader *header;
133 info = (MiniDebugMethodInfo *) cfg->debug_info;
137 mono_class_init (cfg->method->klass);
139 header = cfg->header;
142 info->jit = jit = g_new0 (MonoDebugMethodJitInfo, 1);
143 info->line_numbers = g_array_new (FALSE, TRUE, sizeof (MonoDebugLineNumberEntry));
144 jit->num_locals = header->num_locals;
145 jit->locals = g_new0 (MonoDebugVarInfo, jit->num_locals);
149 write_variable (MonoInst *inst, MonoDebugVarInfo *var)
151 var->type = inst->inst_vtype;
153 if (inst->opcode == OP_REGVAR)
154 var->index = inst->dreg | MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER;
155 else if (inst->flags & MONO_INST_IS_DEAD)
156 var->index = MONO_DEBUG_VAR_ADDRESS_MODE_DEAD;
158 /* the debug interface needs fixing to allow 0(%base) address */
159 var->index = inst->inst_basereg | MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET;
160 var->offset = inst->inst_offset;
165 * mono_debug_add_vg_method:
167 * Register symbol information for the method with valgrind
170 mono_debug_add_vg_method (MonoMethod *method, MonoDebugMethodJitInfo *jit)
172 #ifdef VALGRIND_ADD_LINE_INFO
173 MonoMethodHeader *header;
174 MonoDebugMethodInfo *minfo;
176 char *filename = NULL;
177 guint32 address, line_number;
178 const char *full_name;
182 if (!RUNNING_ON_VALGRIND)
185 header = mono_method_get_header (method);
187 full_name = mono_method_full_name (method, TRUE);
189 addresses = g_new0 (guint32, header->code_size + 1);
190 lines = g_new0 (guint32, header->code_size + 1);
193 * Very simple code to convert the addr->offset mappings that mono has
194 * into [addr-addr] ->line number mappings.
197 minfo = mono_debug_lookup_method (method);
199 /* Create offset->line number mapping */
200 for (i = 0; i < header->code_size; ++i) {
201 MonoDebugSourceLocation *location;
203 location = mono_debug_symfile_lookup_location (minfo, i);
207 lines [i] = location.row;
209 filename = location.source_file;
211 mono_debug_free_source_location (location);
215 /* Create address->offset mapping */
216 for (i = 0; i < jit->num_line_numbers; ++i) {
217 MonoDebugLineNumberEntry *lne = jit->line_numbers [i];
219 g_assert (lne->offset <= header->code_size);
221 if ((addresses [lne->offset] == 0) || (lne->address < addresses [lne->offset]))
222 addresses [lne->offset] = lne->address;
224 /* Fill out missing addresses */
226 for (i = 0; i < header->code_size; ++i) {
227 if (addresses [i] == 0)
228 addresses [i] = address;
230 address = addresses [i];
236 while (i < header->code_size) {
237 if (lines [i] == line_number)
240 if (line_number > 0) {
241 //g_assert (addresses [i] - 1 >= address);
243 if (addresses [i] - 1 >= address) {
244 VALGRIND_ADD_LINE_INFO (jit->code_start + address, jit->code_start + addresses [i] - 1, filename, line_number);
245 //printf ("[%d-%d] -> %d.\n", address, addresses [i] - 1, line_number);
248 address = addresses [i];
249 line_number = lines [i];
253 if (line_number > 0) {
254 VALGRIND_ADD_LINE_INFO (jit->code_start + address, jit->code_start + jit->code_size - 1, filename, line_number);
255 //printf ("[%d-%d] -> %d.\n", address, jit->code_size - 1, line_number);
258 VALGRIND_ADD_SYMBOL (jit->code_start, jit->code_size, full_name);
262 mono_metadata_free_mh (header);
263 #endif /* VALGRIND_ADD_LINE_INFO */
267 mono_debug_close_method (MonoCompile *cfg)
269 MiniDebugMethodInfo *info;
270 MonoDebugMethodJitInfo *jit;
271 MonoMethodHeader *header;
272 MonoMethodSignature *sig;
273 MonoDebugMethodAddress *debug_info;
277 info = (MiniDebugMethodInfo *) cfg->debug_info;
278 if (!info || !info->jit) {
284 method = cfg->method;
285 header = cfg->header;
286 sig = mono_method_signature (method);
289 jit->code_start = cfg->native_code;
290 jit->epilogue_begin = cfg->epilog_begin;
291 jit->code_size = cfg->code_len;
293 if (jit->epilogue_begin)
294 record_line_number (info, jit->epilogue_begin, header->code_size);
296 jit->num_params = sig->param_count;
297 jit->params = g_new0 (MonoDebugVarInfo, jit->num_params);
299 for (i = 0; i < jit->num_locals; i++)
300 write_variable (cfg->locals [i], &jit->locals [i]);
303 jit->this_var = g_new0 (MonoDebugVarInfo, 1);
304 write_variable (cfg->args [0], jit->this_var);
307 for (i = 0; i < jit->num_params; i++)
308 write_variable (cfg->args [i + sig->hasthis], &jit->params [i]);
310 jit->num_line_numbers = info->line_numbers->len;
311 jit->line_numbers = g_new0 (MonoDebugLineNumberEntry, jit->num_line_numbers);
313 for (i = 0; i < jit->num_line_numbers; i++)
314 jit->line_numbers [i] = g_array_index (info->line_numbers, MonoDebugLineNumberEntry, i);
316 debug_info = mono_debug_add_method (cfg->method_to_register, jit, cfg->domain);
318 mono_debug_add_vg_method (method, jit);
320 mono_debugger_check_breakpoints (method, debug_info);
322 mono_debug_free_method_jit_info (jit);
323 g_array_free (info->line_numbers, TRUE);
328 mono_debug_record_line_number (MonoCompile *cfg, MonoInst *ins, guint32 address)
330 MiniDebugMethodInfo *info;
331 MonoMethodHeader *header;
334 info = (MiniDebugMethodInfo *) cfg->debug_info;
335 if (!info || !info->jit || !ins->cil_code)
338 header = cfg->header;
341 if ((ins->cil_code < header->code) ||
342 (ins->cil_code > header->code + header->code_size))
345 offset = ins->cil_code - header->code;
346 if (!info->has_line_numbers) {
347 info->jit->prologue_end = address;
348 info->has_line_numbers = TRUE;
351 record_line_number (info, address, offset);
355 mono_debug_open_block (MonoCompile *cfg, MonoBasicBlock *bb, guint32 address)
357 MiniDebugMethodInfo *info;
358 MonoMethodHeader *header;
361 info = (MiniDebugMethodInfo *) cfg->debug_info;
362 if (!info || !info->jit || !bb->cil_code)
365 header = cfg->header;
368 if ((bb->cil_code < header->code) ||
369 (bb->cil_code > header->code + header->code_size))
372 offset = bb->cil_code - header->code;
373 if (!info->has_line_numbers) {
374 info->jit->prologue_end = address;
375 info->has_line_numbers = TRUE;
378 record_line_number (info, address, offset);
382 encode_value (gint32 value, guint8 *buf, guint8 **endbuf)
386 //printf ("ENCODE: %d 0x%x.\n", value, value);
389 * Same encoding as the one used in the metadata, extended to handle values
390 * greater than 0x1fffffff.
392 if ((value >= 0) && (value <= 127))
394 else if ((value >= 0) && (value <= 16383)) {
395 p [0] = 0x80 | (value >> 8);
396 p [1] = value & 0xff;
398 } else if ((value >= 0) && (value <= 0x1fffffff)) {
399 p [0] = (value >> 24) | 0xc0;
400 p [1] = (value >> 16) & 0xff;
401 p [2] = (value >> 8) & 0xff;
402 p [3] = value & 0xff;
407 p [1] = (value >> 24) & 0xff;
408 p [2] = (value >> 16) & 0xff;
409 p [3] = (value >> 8) & 0xff;
410 p [4] = value & 0xff;
418 decode_value (guint8 *ptr, guint8 **rptr)
423 if ((b & 0x80) == 0){
426 } else if ((b & 0x40) == 0){
427 len = ((b & 0x3f) << 8 | ptr [1]);
429 } else if (b != 0xff) {
430 len = ((b & 0x1f) << 24) |
437 len = (ptr [1] << 24) | (ptr [2] << 16) | (ptr [3] << 8) | ptr [4];
443 //printf ("DECODE: %d.\n", len);
448 serialize_variable (MonoDebugVarInfo *var, guint8 *p, guint8 **endbuf)
450 guint32 flags = var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
452 encode_value (var->index, p, &p);
455 case MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER:
457 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET:
458 encode_value (var->offset, p, &p);
460 case MONO_DEBUG_VAR_ADDRESS_MODE_DEAD:
463 g_assert_not_reached ();
469 mono_debug_serialize_debug_info (MonoCompile *cfg, guint8 **out_buf, guint32 *buf_len)
471 MonoDebugMethodJitInfo *jit;
472 guint32 size, prev_offset, prev_native_offset;
476 /* Can't use cfg->debug_info as it is freed by close_method () */
477 jit = mono_debug_find_method (cfg->method, mono_domain_get ());
483 size = ((jit->num_params + jit->num_locals + 1) * 10) + (jit->num_line_numbers * 10) + 64;
484 p = buf = g_malloc (size);
485 encode_value (jit->epilogue_begin, p, &p);
486 encode_value (jit->prologue_end, p, &p);
487 encode_value (jit->code_size, p, &p);
489 for (i = 0; i < jit->num_params; ++i)
490 serialize_variable (&jit->params [i], p, &p);
492 if (mono_method_signature (cfg->method)->hasthis)
493 serialize_variable (jit->this_var, p, &p);
495 for (i = 0; i < jit->num_locals; i++)
496 serialize_variable (&jit->locals [i], p, &p);
498 encode_value (jit->num_line_numbers, p, &p);
501 prev_native_offset = 0;
502 for (i = 0; i < jit->num_line_numbers; ++i) {
503 /* Sometimes, the offset values are not in increasing order */
504 MonoDebugLineNumberEntry *lne = &jit->line_numbers [i];
505 encode_value (lne->il_offset - prev_offset, p, &p);
506 encode_value (lne->native_offset - prev_native_offset, p, &p);
507 prev_offset = lne->il_offset;
508 prev_native_offset = lne->native_offset;
511 g_assert (p - buf < size);
518 deserialize_variable (MonoDebugVarInfo *var, guint8 *p, guint8 **endbuf)
522 var->index = decode_value (p, &p);
524 flags = var->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS;
527 case MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER:
529 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET:
530 var->offset = decode_value (p, &p);
532 case MONO_DEBUG_VAR_ADDRESS_MODE_DEAD:
535 g_assert_not_reached ();
540 static MonoDebugMethodJitInfo *
541 deserialize_debug_info (MonoMethod *method, guint8 *code_start, guint8 *buf, guint32 buf_len)
543 MonoMethodHeader *header;
544 gint32 offset, native_offset, prev_offset, prev_native_offset;
545 MonoDebugMethodJitInfo *jit;
549 header = mono_method_get_header (method);
552 jit = g_new0 (MonoDebugMethodJitInfo, 1);
553 jit->code_start = code_start;
554 jit->num_locals = header->num_locals;
555 jit->locals = g_new0 (MonoDebugVarInfo, jit->num_locals);
556 jit->num_params = mono_method_signature (method)->param_count;
557 jit->params = g_new0 (MonoDebugVarInfo, jit->num_params);
560 jit->epilogue_begin = decode_value (p, &p);
561 jit->prologue_end = decode_value (p, &p);
562 jit->code_size = decode_value (p, &p);
564 for (i = 0; i < jit->num_params; ++i)
565 deserialize_variable (&jit->params [i], p, &p);
567 if (mono_method_signature (method)->hasthis) {
568 jit->this_var = g_new0 (MonoDebugVarInfo, 1);
569 deserialize_variable (jit->this_var, p, &p);
572 for (i = 0; i < jit->num_locals; i++)
573 deserialize_variable (&jit->locals [i], p, &p);
575 jit->num_line_numbers = decode_value (p, &p);
576 jit->line_numbers = g_new0 (MonoDebugLineNumberEntry, jit->num_line_numbers);
579 prev_native_offset = 0;
580 for (i = 0; i < jit->num_line_numbers; ++i) {
581 MonoDebugLineNumberEntry *lne = &jit->line_numbers [i];
583 offset = prev_offset + decode_value (p, &p);
584 native_offset = prev_native_offset + decode_value (p, &p);
586 lne->native_offset = native_offset;
587 lne->il_offset = offset;
589 prev_offset = offset;
590 prev_native_offset = native_offset;
593 mono_metadata_free_mh (header);
598 mono_debug_add_aot_method (MonoDomain *domain, MonoMethod *method, guint8 *code_start,
599 guint8 *debug_info, guint32 debug_info_len)
601 MonoDebugMethodJitInfo *jit;
603 if (mono_debug_format == MONO_DEBUG_FORMAT_NONE)
606 if ((method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) ||
607 (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) ||
608 (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL) ||
609 (method->flags & METHOD_ATTRIBUTE_ABSTRACT) ||
610 (method->wrapper_type != MONO_WRAPPER_NONE))
613 if (debug_info_len == 0)
616 jit = deserialize_debug_info (method, code_start, debug_info, debug_info_len);
618 mono_debug_add_method (method, jit, domain);
620 mono_debug_add_vg_method (method, jit);
622 mono_debug_free_method_jit_info (jit);
626 mono_debug_add_icall_wrapper (MonoMethod *method, MonoJitICallInfo* callinfo)
628 if (mono_debug_format == MONO_DEBUG_FORMAT_NONE)
631 // mono_debug_add_wrapper (method, callinfo->wrapper, callinfo->func);
635 print_var_info (MonoDebugVarInfo *info, int idx, const char *name, const char *type)
637 switch (info->index & MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS) {
638 case MONO_DEBUG_VAR_ADDRESS_MODE_REGISTER:
639 g_print ("%s %s (%d) in register %s\n", type, name, idx, mono_arch_regname (info->index & (~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS)));
641 case MONO_DEBUG_VAR_ADDRESS_MODE_REGOFFSET:
642 g_print ("%s %s (%d) in memory: base register %s + %d\n", type, name, idx, mono_arch_regname (info->index & (~MONO_DEBUG_VAR_ADDRESS_MODE_FLAGS)), info->offset);
644 case MONO_DEBUG_VAR_ADDRESS_MODE_TWO_REGISTERS:
646 g_assert_not_reached ();
651 * mono_debug_print_locals:
653 * Prints to stdout the information about the local variables in
654 * a method (if @only_arguments is false) or about the arguments.
655 * The information includes the storage info (where the variable
656 * lives, in a register or in memory).
657 * The method is found by looking up what method has been emitted at
658 * the instruction address @ip.
659 * This is for use inside a debugger.
662 mono_debug_print_vars (gpointer ip, gboolean only_arguments)
664 MonoDomain *domain = mono_domain_get ();
665 MonoJitInfo *ji = mono_jit_info_table_find (domain, ip);
666 MonoDebugMethodJitInfo *jit;
672 jit = mono_debug_find_method (mono_jit_info_get_method (ji), domain);
676 if (only_arguments) {
678 names = g_new (char *, jit->num_params);
679 mono_method_get_param_names (mono_jit_info_get_method (ji), (const char **) names);
681 print_var_info (jit->this_var, 0, "this", "Arg");
682 for (i = 0; i < jit->num_params; ++i) {
683 print_var_info (&jit->params [i], i, names [i]? names [i]: "unknown name", "Arg");
687 for (i = 0; i < jit->num_locals; ++i) {
688 print_var_info (&jit->locals [i], i, "", "Local");
691 mono_debug_free_method_jit_info (jit);
695 * The old Debugger breakpoint interface.
697 * This interface is used to insert breakpoints on methods which are not yet JITed.
698 * The debugging code keeps a list of all such breakpoints and automatically inserts the
699 * breakpoint when the method is JITed.
702 static GPtrArray *breakpoints = NULL;
705 mono_debugger_insert_breakpoint_full (MonoMethodDesc *desc)
707 static int last_breakpoint_id = 0;
708 MiniDebugBreakpointInfo *info;
710 info = g_new0 (MiniDebugBreakpointInfo, 1);
712 info->index = ++last_breakpoint_id;
715 breakpoints = g_ptr_array_new ();
717 g_ptr_array_add (breakpoints, info);
723 mono_debugger_remove_breakpoint (int breakpoint_id)
730 for (i = 0; i < breakpoints->len; i++) {
731 MiniDebugBreakpointInfo *info = g_ptr_array_index (breakpoints, i);
733 if (info->index != breakpoint_id)
736 mono_method_desc_free (info->desc);
737 g_ptr_array_remove (breakpoints, info);
746 mono_debugger_insert_breakpoint (const gchar *method_name, gboolean include_namespace)
748 MonoMethodDesc *desc;
750 desc = mono_method_desc_new (method_name, include_namespace);
754 return mono_debugger_insert_breakpoint_full (desc);
758 mono_debugger_method_has_breakpoint (MonoMethod *method)
762 if (!breakpoints || ((method->wrapper_type != MONO_WRAPPER_NONE) &&
763 (method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)))
766 for (i = 0; i < breakpoints->len; i++) {
767 MiniDebugBreakpointInfo *info = g_ptr_array_index (breakpoints, i);
769 if (!mono_method_desc_full_match (info->desc, method))
779 mono_debugger_breakpoint_callback (MonoMethod *method, guint32 index)
781 mono_debugger_event (MONO_DEBUGGER_EVENT_JIT_BREAKPOINT, (guint64) (gsize) method, index);
785 mono_debugger_thread_created (gsize tid, MonoThread *thread, MonoJitTlsData *jit_tls, gpointer func)
787 #ifdef MONO_DEBUGGER_SUPPORTED
789 guint8 *staddr = NULL;
790 MonoDebuggerThreadInfo *info;
792 if (mono_debug_format == MONO_DEBUG_FORMAT_NONE)
795 mono_debugger_lock ();
797 mono_thread_get_stack_bounds (&staddr, &stsize);
799 info = g_new0 (MonoDebuggerThreadInfo, 1);
801 info->thread = thread->internal_thread;
802 info->stack_start = (guint64) (gsize) staddr;
803 info->signal_stack_start = (guint64) (gsize) jit_tls->signal_stack;
804 info->stack_size = stsize;
805 info->signal_stack_size = jit_tls->signal_stack_size;
806 info->end_stack = (guint64) (gsize) GC_mono_debugger_get_stack_ptr ();
807 info->lmf_addr = (guint64) (gsize) mono_get_lmf_addr ();
808 info->jit_tls = jit_tls;
811 info->thread_flags = MONO_DEBUGGER_THREAD_FLAGS_INTERNAL;
812 if (thread->internal_thread->threadpool_thread)
813 info->thread_flags |= MONO_DEBUGGER_THREAD_FLAGS_THREADPOOL;
815 info->next = mono_debugger_thread_table;
816 mono_debugger_thread_table = info;
818 mono_debugger_event (MONO_DEBUGGER_EVENT_THREAD_CREATED,
819 tid, (guint64) (gsize) info);
821 mono_debugger_unlock ();
822 #endif /* MONO_DEBUGGER_SUPPORTED */
826 mono_debugger_thread_cleanup (MonoJitTlsData *jit_tls)
828 #ifdef MONO_DEBUGGER_SUPPORTED
829 MonoDebuggerThreadInfo **ptr;
831 if (mono_debug_format == MONO_DEBUG_FORMAT_NONE)
834 mono_debugger_lock ();
836 for (ptr = &mono_debugger_thread_table; *ptr; ptr = &(*ptr)->next) {
837 MonoDebuggerThreadInfo *info = *ptr;
839 if (info->jit_tls != jit_tls)
842 mono_debugger_event (MONO_DEBUGGER_EVENT_THREAD_CLEANUP,
843 info->tid, (guint64) (gsize) info);
850 mono_debugger_unlock ();
855 mono_debugger_extended_notification (MonoDebuggerEvent event, guint64 data, guint64 arg)
857 #ifdef MONO_DEBUGGER_SUPPORTED
858 MonoDebuggerThreadInfo **ptr;
859 MonoInternalThread *thread = mono_thread_internal_current ();
861 if (!mono_debug_using_mono_debugger ())
864 mono_debugger_lock ();
866 for (ptr = &mono_debugger_thread_table; *ptr; ptr = &(*ptr)->next) {
867 MonoDebuggerThreadInfo *info = *ptr;
869 if (info->thread != thread)
872 if ((info->extended_notifications & (int) event) == 0)
875 mono_debugger_event (event, data, arg);
878 mono_debugger_unlock ();
883 mono_debugger_trampoline_compiled (const guint8 *trampoline, MonoMethod *method, const guint8 *code)
885 #ifdef MONO_DEBUGGER_SUPPORTED
887 const guint8 * trampoline;
890 } info = { trampoline, method, code };
892 mono_debugger_extended_notification (MONO_DEBUGGER_EVENT_OLD_TRAMPOLINE,
893 (guint64) (gsize) method, (guint64) (gsize) code);
894 mono_debugger_extended_notification (MONO_DEBUGGER_EVENT_TRAMPOLINE,
895 (guint64) (gsize) &info, 0);
899 #if MONO_DEBUGGER_SUPPORTED
900 static MonoDebuggerThreadInfo *
901 find_debugger_thread_info (MonoInternalThread *thread)
903 MonoDebuggerThreadInfo **ptr;
905 for (ptr = &mono_debugger_thread_table; *ptr; ptr = &(*ptr)->next) {
906 MonoDebuggerThreadInfo *info = *ptr;
908 if (info->thread == thread)
916 MonoDebuggerExceptionAction
917 _mono_debugger_throw_exception (gpointer addr, gpointer stack, MonoObject *exc)
919 #ifdef MONO_DEBUGGER_SUPPORTED
920 MonoDebuggerExceptionInfo exc_info;
921 MonoDebuggerThreadInfo *thread_info;
923 if (!mono_debug_using_mono_debugger ())
924 return MONO_DEBUGGER_EXCEPTION_ACTION_NONE;
926 mono_debugger_lock ();
928 thread_info = find_debugger_thread_info (mono_thread_internal_current ());
930 mono_debugger_unlock ();
931 return MONO_DEBUGGER_EXCEPTION_ACTION_NONE;
934 if ((thread_info->internal_flags & MONO_DEBUGGER_INTERNAL_THREAD_FLAGS_ABORT_REQUESTED) != 0) {
935 mono_debugger_unlock ();
936 return MONO_DEBUGGER_EXCEPTION_ACTION_NONE;
939 if (thread_info->exception_state.stopped_on_exception ||
940 thread_info->exception_state.stopped_on_unhandled) {
941 thread_info->exception_state.stopped_on_exception = 0;
942 mono_debugger_unlock ();
943 return MONO_DEBUGGER_EXCEPTION_ACTION_NONE;
946 /* Protect the exception object from being garbage collected. */
948 thread_info->exception_state.stopped_on_unhandled = 0;
949 thread_info->exception_state.stopped_on_exception = 1;
950 thread_info->exception_state.last_exception = exc;
953 * Backwards compatibility:
955 * Older debugger versions only know `exc_info.stop' and older runtime versions check
956 * `exc_info.stop != 0'.
958 * The debugger must check for `mono_debug_debugger_version >= 5' before accessing the
959 * `stop_unhandled' field.
962 exc_info.stack_pointer = stack;
963 exc_info.exception_obj = exc;
965 exc_info.stop_unhandled = 0;
967 mono_debugger_event (MONO_DEBUGGER_EVENT_THROW_EXCEPTION, (guint64) (gsize) &exc_info,
968 (guint64) (gsize) addr);
970 if (!exc_info.stop) {
971 thread_info->exception_state.stopped_on_exception = 0;
972 thread_info->exception_state.last_exception = NULL;
975 mono_debugger_unlock ();
978 return MONO_DEBUGGER_EXCEPTION_ACTION_STOP;
979 else if (exc_info.stop_unhandled)
980 return MONO_DEBUGGER_EXCEPTION_ACTION_STOP_UNHANDLED;
983 return MONO_DEBUGGER_EXCEPTION_ACTION_NONE;
987 _mono_debugger_unhandled_exception (gpointer addr, gpointer stack, MonoObject *exc)
989 #ifdef MONO_DEBUGGER_SUPPORTED
990 MonoDebuggerThreadInfo *thread_info;
992 if (!mono_debug_using_mono_debugger ())
996 const gchar *name = mono_class_get_name (mono_object_get_class (exc));
997 if (!strcmp (name, "ThreadAbortException"))
1001 mono_debugger_lock ();
1003 thread_info = find_debugger_thread_info (mono_thread_internal_current ());
1005 mono_debugger_unlock ();
1009 if ((thread_info->internal_flags & MONO_DEBUGGER_INTERNAL_THREAD_FLAGS_ABORT_REQUESTED) != 0) {
1010 mono_debugger_unlock ();
1014 if (thread_info->exception_state.stopped_on_unhandled) {
1015 thread_info->exception_state.stopped_on_unhandled = 0;
1016 mono_debugger_unlock ();
1020 thread_info->exception_state.stopped_on_unhandled = 1;
1021 thread_info->exception_state.last_exception = exc;
1023 mono_debugger_event (MONO_DEBUGGER_EVENT_UNHANDLED_EXCEPTION,
1024 (guint64) (gsize) exc, (guint64) (gsize) addr);
1033 * mono_debugger_call_exception_handler:
1035 * Called from mono_handle_exception_internal() to tell the debugger that we're about
1036 * to invoke an exception handler.
1038 * The debugger may choose to set a breakpoint at @addr. This is used if the user is
1039 * single-stepping from a `try' into a `catch' block, for instance.
1043 mono_debugger_call_exception_handler (gpointer addr, gpointer stack, MonoObject *exc)
1045 #ifdef MONO_DEBUGGER_SUPPORTED
1046 MonoDebuggerThreadInfo *thread_info;
1047 MonoDebuggerExceptionInfo exc_info;
1049 if (!mono_debug_using_mono_debugger ())
1052 mono_debugger_lock ();
1054 thread_info = find_debugger_thread_info (mono_thread_internal_current ());
1056 mono_debugger_unlock ();
1060 if ((thread_info->internal_flags & MONO_DEBUGGER_INTERNAL_THREAD_FLAGS_ABORT_REQUESTED) != 0) {
1061 mono_debugger_unlock ();
1065 // Prevent the object from being finalized.
1066 thread_info->exception_state.last_exception = exc;
1068 exc_info.stack_pointer = stack;
1069 exc_info.exception_obj = exc;
1071 exc_info.stop_unhandled = 0;
1073 mono_debugger_event (MONO_DEBUGGER_EVENT_HANDLE_EXCEPTION, (guint64) (gsize) &exc_info,
1074 (guint64) (gsize) addr);
1076 mono_debugger_unlock ();
1080 #ifdef MONO_DEBUGGER_SUPPORTED
1083 get_exception_message (MonoObject *exc)
1085 char *message = NULL;
1091 if (mono_object_isinst (exc, mono_defaults.exception_class)) {
1092 klass = exc->vtable->klass;
1094 while (klass && method == NULL) {
1095 for (i = 0; i < klass->method.count; ++i) {
1096 method = klass->methods [i];
1097 if (!strcmp ("ToString", method->name) &&
1098 mono_method_signature (method)->param_count == 0 &&
1099 method->flags & METHOD_ATTRIBUTE_VIRTUAL &&
1100 method->flags & METHOD_ATTRIBUTE_PUBLIC) {
1107 klass = klass->parent;
1112 str = (MonoString *) mono_runtime_invoke (method, exc, NULL, NULL);
1114 message = mono_string_to_utf8 (str);
1121 mono_debugger_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
1123 MonoDebuggerThreadInfo *thread_info;
1124 MonoDebuggerExceptionState saved_exception_state;
1128 mono_debugger_lock ();
1130 thread_info = find_debugger_thread_info (mono_thread_internal_current ());
1132 mono_debugger_unlock ();
1136 saved_exception_state = thread_info->exception_state;
1138 thread_info->exception_state.last_exception = NULL;
1139 thread_info->exception_state.stopped_on_unhandled = 0;
1140 thread_info->exception_state.stopped_on_exception = 0;
1142 thread_info->internal_flags |= MONO_DEBUGGER_INTERNAL_THREAD_FLAGS_IN_RUNTIME_INVOKE;
1144 mono_debugger_unlock ();
1146 if (!strcmp (method->name, ".ctor")) {
1147 retval = obj = mono_object_new (mono_domain_get (), method->klass);
1149 mono_runtime_invoke (method, obj, params, exc);
1151 retval = mono_runtime_invoke (method, obj, params, exc);
1153 mono_debugger_lock ();
1155 thread_info->exception_state = saved_exception_state;
1156 thread_info->internal_flags &= ~MONO_DEBUGGER_INTERNAL_THREAD_FLAGS_IN_RUNTIME_INVOKE;
1158 if ((thread_info->internal_flags & MONO_DEBUGGER_INTERNAL_THREAD_FLAGS_ABORT_REQUESTED) != 0) {
1159 thread_info->internal_flags &= ~MONO_DEBUGGER_INTERNAL_THREAD_FLAGS_ABORT_REQUESTED;
1160 mono_thread_internal_reset_abort (thread_info->thread);
1162 mono_debugger_unlock ();
1168 mono_debugger_unlock ();
1170 if (!exc || (*exc == NULL))
1174 message = get_exception_message (*exc);
1176 *exc = (MonoObject *) mono_string_new_wrapper (message);
1184 mono_debugger_abort_runtime_invoke ()
1186 MonoInternalThread *thread = mono_thread_internal_current ();
1187 MonoDebuggerThreadInfo *thread_info;
1189 mono_debugger_lock ();
1191 thread_info = find_debugger_thread_info (thread);
1193 mono_debugger_unlock ();
1197 if ((thread_info->internal_flags & MONO_DEBUGGER_INTERNAL_THREAD_FLAGS_IN_RUNTIME_INVOKE) == 0) {
1198 mono_debugger_unlock ();
1202 if ((thread_info->internal_flags & MONO_DEBUGGER_INTERNAL_THREAD_FLAGS_ABORT_REQUESTED) != 0) {
1203 mono_debugger_unlock ();
1207 thread_info->internal_flags |= MONO_DEBUGGER_INTERNAL_THREAD_FLAGS_ABORT_REQUESTED;
1208 ves_icall_System_Threading_Thread_Abort (thread_info->thread, NULL);
1210 mono_debugger_unlock ();