guint32 breakpoint_id;
} MiniDebugMethodInfo;
+typedef struct {
+ MonoObject *last_exception;
+ guint32 stopped_on_exception : 1;
+ guint32 stopped_on_unhandled : 1;
+} MonoDebuggerExceptionState;
+
+typedef enum {
+ MONO_DEBUGGER_THREAD_FLAGS_NONE = 0,
+ MONO_DEBUGGER_THREAD_FLAGS_INTERNAL = 1,
+ MONO_DEBUGGER_THREAD_FLAGS_THREADPOOL = 2
+} MonoDebuggerThreadFlags;
+
struct _MonoDebuggerThreadInfo {
guint64 tid;
guint64 lmf_addr;
guint32 stack_size;
guint32 signal_stack_size;
+ guint32 thread_flags;
+
/*
* The debugger doesn't access anything beyond this point.
*/
+ MonoDebuggerExceptionState exception_state;
+
MonoJitTlsData *jit_tls;
MonoThread *thread;
};
+typedef struct {
+ gpointer stack_pointer;
+ MonoObject *exception_obj;
+ guint32 stop;
+ guint32 stop_unhandled;
+} MonoDebuggerExceptionInfo;
+
MonoDebuggerThreadInfo *mono_debugger_thread_table = NULL;
static inline void
for (i = 0; i < jit->num_line_numbers; i++)
jit->line_numbers [i] = g_array_index (info->line_numbers, MonoDebugLineNumberEntry, i);
- debug_info = mono_debug_add_method (method, jit, cfg->domain);
+ debug_info = mono_debug_add_method (cfg->method_to_register, jit, cfg->domain);
mono_debug_add_vg_method (method, jit);
- if (info->breakpoint_id)
- mono_debugger_breakpoint_callback (method, info->breakpoint_id);
-
mono_debugger_check_breakpoints (method, debug_info);
mono_debug_free_method_jit_info (jit);
{
int i;
- if (!breakpoints || (method->wrapper_type != MONO_WRAPPER_NONE))
+ if (!breakpoints || ((method->wrapper_type != MONO_WRAPPER_NONE) &&
+ (method->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD)))
return 0;
for (i = 0; i < breakpoints->len; i++) {
}
void
-mono_debugger_thread_created (gsize tid, MonoThread *thread, MonoJitTlsData *jit_tls)
+mono_debugger_thread_created (gsize tid, MonoThread *thread, MonoJitTlsData *jit_tls, gpointer func)
{
#ifdef MONO_DEBUGGER_SUPPORTED
size_t stsize = 0;
info->lmf_addr = (guint64) (gsize) mono_get_lmf_addr ();
info->jit_tls = jit_tls;
+ if (func)
+ info->thread_flags = MONO_DEBUGGER_THREAD_FLAGS_INTERNAL;
+ if (thread->internal_thread->threadpool_thread)
+ info->thread_flags |= MONO_DEBUGGER_THREAD_FLAGS_THREADPOOL;
+
info->next = mono_debugger_thread_table;
mono_debugger_thread_table = info;
}
void
-mono_debugger_trampoline_compiled (MonoMethod *method, const guint8 *code)
+mono_debugger_trampoline_compiled (const guint8 *trampoline, MonoMethod *method, const guint8 *code)
{
- mono_debugger_extended_notification (MONO_DEBUGGER_EVENT_TRAMPOLINE,
+#ifdef MONO_DEBUGGER_SUPPORTED
+ struct {
+ const guint8 * trampoline;
+ MonoMethod *method;
+ const guint8 *code;
+ } info = { trampoline, method, code };
+
+ mono_debugger_extended_notification (MONO_DEBUGGER_EVENT_OLD_TRAMPOLINE,
(guint64) (gsize) method, (guint64) (gsize) code);
+ mono_debugger_extended_notification (MONO_DEBUGGER_EVENT_TRAMPOLINE,
+ (guint64) (gsize) &info, 0);
+#endif
}
+
+#if MONO_DEBUGGER_SUPPORTED
+static MonoDebuggerThreadInfo *
+find_debugger_thread_info (MonoThread *thread)
+{
+ MonoDebuggerThreadInfo **ptr;
+
+ for (ptr = &mono_debugger_thread_table; *ptr; ptr = &(*ptr)->next) {
+ MonoDebuggerThreadInfo *info = *ptr;
+
+ if (info->thread == thread)
+ return info;
+ }
+
+ return NULL;
+}
+#endif
+
+MonoDebuggerExceptionAction
+_mono_debugger_throw_exception (gpointer addr, gpointer stack, MonoObject *exc)
+{
+#ifdef MONO_DEBUGGER_SUPPORTED
+ MonoDebuggerExceptionInfo exc_info;
+ MonoDebuggerThreadInfo *thread_info;
+
+ if (!mono_debug_using_mono_debugger ())
+ return MONO_DEBUGGER_EXCEPTION_ACTION_NONE;
+
+ mono_debugger_lock ();
+
+ thread_info = find_debugger_thread_info (mono_thread_current ());
+ if (!thread_info) {
+ mono_debugger_unlock ();
+ return MONO_DEBUGGER_EXCEPTION_ACTION_NONE;
+ }
+
+ if (thread_info->exception_state.stopped_on_exception ||
+ thread_info->exception_state.stopped_on_unhandled) {
+ thread_info->exception_state.stopped_on_exception = 0;
+ mono_debugger_unlock ();
+ return MONO_DEBUGGER_EXCEPTION_ACTION_NONE;
+ }
+
+ /* Protect the exception object from being garbage collected. */
+
+ thread_info->exception_state.stopped_on_unhandled = 0;
+ thread_info->exception_state.stopped_on_exception = 1;
+ thread_info->exception_state.last_exception = exc;
+
+ /*
+ * Backwards compatibility:
+ *
+ * Older debugger versions only know `exc_info.stop' and older runtime versions check
+ * `exc_info.stop != 0'.
+ *
+ * The debugger must check for `mono_debug_debugger_version >= 5' before accessing the
+ * `stop_unhandled' field.
+ */
+
+ exc_info.stack_pointer = stack;
+ exc_info.exception_obj = exc;
+ exc_info.stop = 0;
+ exc_info.stop_unhandled = 0;
+
+ mono_debugger_event (MONO_DEBUGGER_EVENT_THROW_EXCEPTION, (guint64) (gsize) &exc_info,
+ (guint64) (gsize) addr);
+
+ if (!exc_info.stop) {
+ thread_info->exception_state.stopped_on_exception = 0;
+ thread_info->exception_state.last_exception = NULL;
+ }
+
+ mono_debugger_unlock ();
+
+ if (exc_info.stop)
+ return MONO_DEBUGGER_EXCEPTION_ACTION_STOP;
+ else if (exc_info.stop_unhandled)
+ return MONO_DEBUGGER_EXCEPTION_ACTION_STOP_UNHANDLED;
+#endif
+
+ return MONO_DEBUGGER_EXCEPTION_ACTION_NONE;
+}
+
+gboolean
+_mono_debugger_unhandled_exception (gpointer addr, gpointer stack, MonoObject *exc)
+{
+#ifdef MONO_DEBUGGER_SUPPORTED
+ MonoDebuggerThreadInfo *thread_info;
+
+ if (!mono_debug_using_mono_debugger ())
+ return FALSE;
+
+ if (exc) {
+ const gchar *name = mono_class_get_name (mono_object_get_class (exc));
+ if (!strcmp (name, "ThreadAbortException"))
+ return FALSE;
+ }
+
+ mono_debugger_lock ();
+
+ thread_info = find_debugger_thread_info (mono_thread_current ());
+ if (!thread_info) {
+ mono_debugger_unlock ();
+ return FALSE;
+ }
+
+ if (thread_info->exception_state.stopped_on_unhandled) {
+ thread_info->exception_state.stopped_on_unhandled = 0;
+ mono_debugger_unlock ();
+ return FALSE;
+ }
+
+ thread_info->exception_state.stopped_on_unhandled = 1;
+ thread_info->exception_state.last_exception = exc;
+
+ mono_debugger_event (MONO_DEBUGGER_EVENT_UNHANDLED_EXCEPTION,
+ (guint64) (gsize) exc, (guint64) (gsize) addr);
+
+ return TRUE;
+#else
+ return FALSE;
+#endif
+}
+
+/*
+ * mono_debugger_call_exception_handler:
+ *
+ * Called from mono_handle_exception_internal() to tell the debugger that we're about
+ * to invoke an exception handler.
+ *
+ * The debugger may choose to set a breakpoint at @addr. This is used if the user is
+ * single-stepping from a `try' into a `catch' block, for instance.
+ */
+
+void
+mono_debugger_call_exception_handler (gpointer addr, gpointer stack, MonoObject *exc)
+{
+#ifdef MONO_DEBUGGER_SUPPORTED
+ MonoDebuggerThreadInfo *thread_info;
+ MonoDebuggerExceptionInfo exc_info;
+
+ if (!mono_debug_using_mono_debugger ())
+ return;
+
+ mono_debugger_lock ();
+
+ thread_info = find_debugger_thread_info (mono_thread_current ());
+ if (!thread_info) {
+ mono_debugger_unlock ();
+ return;
+ }
+
+ // Prevent the object from being finalized.
+ thread_info->exception_state.last_exception = exc;
+
+ exc_info.stack_pointer = stack;
+ exc_info.exception_obj = exc;
+ exc_info.stop = 0;
+ exc_info.stop_unhandled = 0;
+
+ mono_debugger_event (MONO_DEBUGGER_EVENT_HANDLE_EXCEPTION, (guint64) (gsize) &exc_info,
+ (guint64) (gsize) addr);
+
+ mono_debugger_unlock ();
+#endif
+}
+
+#ifdef MONO_DEBUGGER_SUPPORTED
+
+static gchar *
+get_exception_message (MonoObject *exc)
+{
+ char *message = NULL;
+ MonoString *str;
+ MonoMethod *method;
+ MonoClass *klass;
+ gint i;
+
+ if (mono_object_isinst (exc, mono_defaults.exception_class)) {
+ klass = exc->vtable->klass;
+ method = NULL;
+ while (klass && method == NULL) {
+ for (i = 0; i < klass->method.count; ++i) {
+ method = klass->methods [i];
+ if (!strcmp ("ToString", method->name) &&
+ mono_method_signature (method)->param_count == 0 &&
+ method->flags & METHOD_ATTRIBUTE_VIRTUAL &&
+ method->flags & METHOD_ATTRIBUTE_PUBLIC) {
+ break;
+ }
+ method = NULL;
+ }
+
+ if (method == NULL)
+ klass = klass->parent;
+ }
+
+ g_assert (method);
+
+ str = (MonoString *) mono_runtime_invoke (method, exc, NULL, NULL);
+ if (str)
+ message = mono_string_to_utf8 (str);
+ }
+
+ return message;
+}
+
+MonoObject *
+mono_debugger_runtime_invoke (MonoMethod *method, void *obj, void **params, MonoObject **exc)
+{
+ MonoDebuggerThreadInfo *thread_info;
+ MonoDebuggerExceptionState saved_exception_state;
+ MonoObject *retval;
+ gchar *message;
+
+ mono_debugger_lock ();
+
+ thread_info = find_debugger_thread_info (mono_thread_current ());
+ if (!thread_info) {
+ mono_debugger_unlock ();
+ return NULL;
+ }
+
+ saved_exception_state = thread_info->exception_state;
+
+ thread_info->exception_state.last_exception = NULL;
+ thread_info->exception_state.stopped_on_unhandled = 0;
+ thread_info->exception_state.stopped_on_exception = 0;
+
+ mono_debugger_unlock ();
+
+ if (!strcmp (method->name, ".ctor")) {
+ retval = obj = mono_object_new (mono_domain_get (), method->klass);
+
+ mono_runtime_invoke (method, obj, params, exc);
+ } else
+ retval = mono_runtime_invoke (method, obj, params, exc);
+
+ mono_debugger_lock ();
+
+ thread_info = find_debugger_thread_info (mono_thread_current ());
+ if (thread_info)
+ thread_info->exception_state = saved_exception_state;
+
+ mono_debugger_unlock ();
+
+ if (!exc || (*exc == NULL))
+ return retval;
+
+ retval = *exc;
+ message = get_exception_message (*exc);
+ if (message) {
+ *exc = (MonoObject *) mono_string_new_wrapper (message);
+ g_free (message);
+ }
+
+ return retval;
+}
+
+#endif
projects / mono.git / blobdiff