4 #include <mono/metadata/assembly.h>
5 #include <mono/metadata/metadata.h>
6 #include <mono/metadata/tabledefs.h>
7 #include <mono/metadata/tokentype.h>
8 #include <mono/metadata/appdomain.h>
9 #include <mono/metadata/gc-internal.h>
10 #include <mono/os/gc_wrapper.h>
11 #include <mono/metadata/object-internals.h>
12 #include <mono/metadata/class-internals.h>
13 #include <mono/metadata/exception.h>
14 #include <mono/metadata/mono-debug.h>
15 #include <mono/metadata/mono-debug-debugger.h>
16 #include <mono/metadata/mono-endian.h>
18 static guint32 debugger_lock_level = 0;
19 static CRITICAL_SECTION debugger_lock_mutex;
20 static gboolean must_reload_symtabs = FALSE;
21 static gboolean mono_debugger_initialized = FALSE;
22 static MonoObject *last_exception = NULL;
24 struct _MonoDebuggerMetadataInfo {
26 int mono_defaults_size;
27 MonoDefaults *mono_defaults;
28 int klass_field_offset;
29 int klass_methods_offset;
30 int klass_method_count_offset;
34 void (*mono_debugger_event_handler) (MonoDebuggerEvent event, guint64 data, guint64 arg) = NULL;
36 #define WRITE_UINT32(ptr,value) G_STMT_START { \
37 * ((guint32 *) ptr) = value; \
41 #define WRITE_POINTER(ptr,value) G_STMT_START { \
42 * ((gpointer *) ptr) = (gpointer) (value); \
43 ptr += sizeof (gpointer); \
46 #define WRITE_STRING(ptr,value) G_STMT_START { \
47 memcpy (ptr, value, strlen (value)+1); \
48 ptr += strlen (value)+1; \
52 gpointer stack_pointer;
53 MonoObject *exception_obj;
55 } MonoDebuggerExceptionInfo;
57 #ifndef PLATFORM_WIN32
59 MonoDebuggerIOLayer mono_debugger_io_layer = {
60 InitializeCriticalSection, DeleteCriticalSection, TryEnterCriticalSection,
61 EnterCriticalSection, LeaveCriticalSection, WaitForSingleObjectEx, SignalObjectAndWait,
62 WaitForMultipleObjectsEx, CreateSemaphore, ReleaseSemaphore, CreateThread,
69 mono_debugger_lock (void)
71 if (!mono_debugger_initialized) {
72 debugger_lock_level++;
76 EnterCriticalSection (&debugger_lock_mutex);
77 debugger_lock_level++;
81 mono_debugger_unlock (void)
83 g_assert (debugger_lock_level > 0);
85 if (!mono_debugger_initialized) {
86 debugger_lock_level--;
90 if (debugger_lock_level == 1) {
91 if (must_reload_symtabs) {
92 mono_debugger_event (MONO_DEBUGGER_EVENT_RELOAD_SYMTABS, 0, 0);
93 must_reload_symtabs = FALSE;
97 debugger_lock_level--;
98 LeaveCriticalSection (&debugger_lock_mutex);
102 mono_debugger_initialize (void)
104 MONO_GC_REGISTER_ROOT (last_exception);
106 g_assert (!mono_debugger_initialized);
108 InitializeCriticalSection (&debugger_lock_mutex);
109 mono_debugger_initialized = TRUE;
113 mono_debugger_add_symbol_file (MonoDebugHandle *handle)
115 g_assert (mono_debugger_initialized);
117 mono_debugger_lock ();
118 mono_debugger_event (MONO_DEBUGGER_EVENT_ADD_MODULE, GPOINTER_TO_UINT (handle), 0);
119 mono_debugger_unlock ();
123 mono_debugger_add_builtin_types (MonoDebugHandle *symfile)
125 MonoDebuggerMetadataInfo *info;
128 mono_symbol_table->corlib = symfile;
129 mono_symbol_table->metadata_info = info = g_new0 (MonoDebuggerMetadataInfo, 1);
131 info->size = sizeof (MonoDebuggerMetadataInfo);
132 info->mono_defaults = &mono_defaults;
133 info->mono_defaults_size = sizeof (MonoDefaults);
134 info->klass_field_offset = (guint8*)&klass.fields - (guint8*)&klass;
135 info->klass_methods_offset = (guint8*)&klass.methods - (guint8*)&klass;
136 info->klass_method_count_offset = (guint8*)&klass.method.count - (guint8*)&klass;
137 info->field_info_size = sizeof (MonoClassField);
141 mono_debugger_start_add_type (MonoDebugHandle *symfile, MonoClass *klass)
143 must_reload_symtabs = TRUE;
147 mono_debugger_add_type (MonoDebugHandle *symfile, MonoClass *klass)
152 mono_debugger_add_method (MonoDebugMethodJitInfo *jit)
156 MonoReflectionMethod *
157 ves_icall_MonoDebugger_GetMethod (MonoReflectionAssembly *assembly, guint32 token)
161 method = mono_get_method (mono_assembly_get_image (assembly->assembly), token, NULL);
163 return mono_method_get_object (mono_domain_get (), method, NULL);
167 ves_icall_MonoDebugger_GetMethodToken (MonoReflectionAssembly *assembly, MonoReflectionMethod *method)
169 return method->method->token;
173 ves_icall_MonoDebugger_GetType (MonoReflectionAssembly *assembly, guint32 token)
177 klass = mono_class_get (mono_assembly_get_image (assembly->assembly), token);
179 g_warning (G_STRLOC ": %x", token);
183 return mono_type_get_object (mono_domain_get (), &klass->byval_arg);
187 ves_icall_MonoDebugger_GetLocalTypeFromSignature (MonoReflectionAssembly *assembly, MonoArray *signature)
195 MONO_CHECK_ARG_NULL (assembly);
196 MONO_CHECK_ARG_NULL (signature);
198 domain = mono_domain_get();
199 image = mono_assembly_get_image (assembly->assembly);
201 ptr = mono_array_addr (signature, char, 0);
202 g_assert (*ptr++ == 0x07);
203 len = mono_metadata_decode_value (ptr, &ptr);
206 type = mono_metadata_parse_type (image, MONO_PARSE_LOCAL, 0, ptr, &ptr);
208 return mono_type_get_object (domain, type);
212 mono_debugger_event (MonoDebuggerEvent event, guint64 data, guint64 arg)
214 if (mono_debugger_event_handler)
215 (* mono_debugger_event_handler) (event, data, arg);
219 mono_debugger_cleanup (void)
221 /* Do nothing yet. */
225 * Debugger breakpoint interface.
227 * This interface is used to insert breakpoints on methods which are not yet JITed.
228 * The debugging code keeps a list of all such breakpoints and automatically inserts the
229 * breakpoint when the method is JITed.
232 static GPtrArray *breakpoints = NULL;
235 mono_debugger_insert_breakpoint_full (MonoMethodDesc *desc)
237 static int last_breakpoint_id = 0;
238 MonoDebuggerBreakpointInfo *info;
240 info = g_new0 (MonoDebuggerBreakpointInfo, 1);
242 info->index = ++last_breakpoint_id;
245 breakpoints = g_ptr_array_new ();
247 g_ptr_array_add (breakpoints, info);
253 mono_debugger_remove_breakpoint (int breakpoint_id)
260 for (i = 0; i < breakpoints->len; i++) {
261 MonoDebuggerBreakpointInfo *info = g_ptr_array_index (breakpoints, i);
263 if (info->index != breakpoint_id)
266 mono_method_desc_free (info->desc);
267 g_ptr_array_remove (breakpoints, info);
276 mono_debugger_insert_breakpoint (const gchar *method_name, gboolean include_namespace)
278 MonoMethodDesc *desc;
280 desc = mono_method_desc_new (method_name, include_namespace);
284 return mono_debugger_insert_breakpoint_full (desc);
288 mono_debugger_method_has_breakpoint (MonoMethod *method)
292 if (!breakpoints || (method->wrapper_type != MONO_WRAPPER_NONE))
295 for (i = 0; i < breakpoints->len; i++) {
296 MonoDebuggerBreakpointInfo *info = g_ptr_array_index (breakpoints, i);
298 if (!mono_method_desc_full_match (info->desc, method))
308 mono_debugger_breakpoint_callback (MonoMethod *method, guint32 index)
310 mono_debugger_event (MONO_DEBUGGER_EVENT_BREAKPOINT, GPOINTER_TO_UINT (method), index);
314 mono_debugger_unhandled_exception (gpointer addr, gpointer stack, MonoObject *exc)
316 if (!mono_debugger_initialized)
319 // Prevent the object from being finalized.
320 last_exception = exc;
321 mono_debugger_event (MONO_DEBUGGER_EVENT_UNHANDLED_EXCEPTION,
322 GPOINTER_TO_UINT (exc), GPOINTER_TO_UINT (addr));
327 mono_debugger_handle_exception (gpointer addr, gpointer stack, MonoObject *exc)
329 MonoDebuggerExceptionInfo info;
331 if (!mono_debugger_initialized)
334 // Prevent the object from being finalized.
335 last_exception = exc;
337 info.stack_pointer = stack;
338 info.exception_obj = exc;
341 mono_debugger_event (MONO_DEBUGGER_EVENT_EXCEPTION, GPOINTER_TO_UINT (&info),
342 GPOINTER_TO_UINT (addr));
346 mono_debugger_throw_exception (gpointer addr, gpointer stack, MonoObject *exc)
348 MonoDebuggerExceptionInfo info;
350 if (!mono_debugger_initialized)
353 // Prevent the object from being finalized.
354 last_exception = exc;
356 info.stack_pointer = stack;
357 info.exception_obj = exc;
360 mono_debugger_event (MONO_DEBUGGER_EVENT_THROW_EXCEPTION, GPOINTER_TO_UINT (&info),
361 GPOINTER_TO_UINT (addr));
362 return info.stop != 0;
366 get_exception_message (MonoObject *exc)
368 char *message = NULL;
374 if (mono_object_isinst (exc, mono_defaults.exception_class)) {
375 klass = exc->vtable->klass;
377 while (klass && method == NULL) {
378 for (i = 0; i < klass->method.count; ++i) {
379 method = klass->methods [i];
380 if (!strcmp ("ToString", method->name) &&
381 mono_method_signature (method)->param_count == 0 &&
382 method->flags & METHOD_ATTRIBUTE_VIRTUAL &&
383 method->flags & METHOD_ATTRIBUTE_PUBLIC) {
390 klass = klass->parent;
395 str = (MonoString *) mono_runtime_invoke (method, exc, NULL, NULL);
397 message = mono_string_to_utf8 (str);
404 mono_debugger_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
409 g_message (G_STRLOC ": %p - %p - %p - %p", method, obj, params, exc);
410 g_message (G_STRLOC ": %s.%s", method->klass->name, method->name);
412 if (!strcmp (method->name, ".ctor")) {
413 retval = obj = mono_object_new (mono_domain_get (), method->klass);
415 mono_runtime_invoke (method, obj, params, exc);
417 retval = mono_runtime_invoke (method, obj, params, exc);
419 if (!exc || (*exc == NULL))
422 message = get_exception_message (*exc);
424 *exc = (MonoObject *) mono_string_new_wrapper (message);
432 mono_debugger_lookup_assembly (const gchar *name)
434 MonoAssembly *assembly;
435 MonoImageOpenStatus status;
438 mono_debugger_lock ();
441 for (i = 0; i < mono_symbol_table->num_symbol_files; i++) {
442 MonoDebugHandle *symfile = mono_symbol_table->symbol_files [i];
444 if (!strcmp (symfile->image_file, name)) {
445 mono_debugger_unlock ();
450 assembly = mono_assembly_open (name, &status);
452 if (status != MONO_IMAGE_OK) {
453 g_warning (G_STRLOC ": Cannot open image `%s'", name);
454 mono_debugger_unlock ();
458 must_reload_symtabs = TRUE;