#include <mono/metadata/object-internals.h>
#include <mono/metadata/reflection-internals.h>
#include <mono/metadata/gc-internals.h>
+#include <mono/metadata/debug-internals.h>
#include <mono/metadata/mono-debug.h>
#include <mono/metadata/profiler.h>
#include <mono/metadata/mono-endian.h>
if (!err)
return FALSE;
- if (*lmf && ((*lmf) != jit_tls->first_lmf) && ((gpointer)MONO_CONTEXT_GET_SP (new_ctx) >= (gpointer)(*lmf))) {
+ if (frame->type != FRAME_TYPE_INTERP_TO_MANAGED && *lmf && ((*lmf) != jit_tls->first_lmf) && ((gpointer)MONO_CONTEXT_GET_SP (new_ctx) >= (gpointer)(*lmf))) {
/*
* Remove any unused lmf.
* Mask out the lower bits which might be used to hold additional information.
return TRUE;
}
+typedef struct {
+ gboolean in_interp;
+ MonoInterpStackIter interp_iter;
+} Unwinder;
+
+static void
+unwinder_init (Unwinder *unwinder)
+{
+ memset (unwinder, 0, sizeof (Unwinder));
+}
+
+static gboolean
+unwinder_unwind_frame (Unwinder *unwinder,
+ MonoDomain *domain, MonoJitTlsData *jit_tls,
+ MonoJitInfo *prev_ji, MonoContext *ctx,
+ MonoContext *new_ctx, char **trace, MonoLMF **lmf,
+ mgreg_t **save_locations,
+ StackFrameInfo *frame)
+{
+ if (unwinder->in_interp) {
+ unwinder->in_interp = mono_interp_frame_iter_next (&unwinder->interp_iter, frame);
+ if (!unwinder->in_interp) {
+ return unwinder_unwind_frame (unwinder, domain, jit_tls, prev_ji, ctx, new_ctx, trace, lmf, save_locations, frame);
+ }
+ return TRUE;
+ } else {
+ gboolean res = mono_find_jit_info_ext (domain, jit_tls, prev_ji, ctx, new_ctx, trace, lmf,
+ save_locations, frame);
+ if (!res)
+ return FALSE;
+ if (frame->type == FRAME_TYPE_INTERP_TO_MANAGED) {
+ unwinder->in_interp = TRUE;
+ mono_interp_frame_iter_init (&unwinder->interp_iter, frame->interp_exit_data);
+ }
+ return TRUE;
+ }
+}
+
/*
* This function is async-safe.
*/
/**
* mono_exception_walk_native_trace:
- * @ex: The exception object whose frames should be walked
- * @func: callback to call for each stack frame
- * @user_data: data passed to the callback
- *
+ * \param ex The exception object whose frames should be walked
+ * \param func callback to call for each stack frame
+ * \param user_data data passed to the callback
* This function walks the stacktrace of an exception. For
* each frame the callback function is called with the relevant info.
* The walk ends when no more stack frames are found or when the callback
}
/**
* mono_walk_stack_with_ctx:
- *
- * Unwind the current thread starting at @start_ctx.
- *
- * If @start_ctx is null, we capture the current context.
+ * Unwind the current thread starting at \p start_ctx.
+ * If \p start_ctx is null, we capture the current context.
*/
void
mono_walk_stack_with_ctx (MonoJitStackWalk func, MonoContext *start_ctx, MonoUnwindOptions unwind_options, void *user_data)
/**
* mono_walk_stack_with_state:
- *
- * Unwind a thread described by @state.
+ * Unwind a thread described by \p state.
*
* State must be valid (state->valid == TRUE).
*
* If you are using this function to unwind another thread, make sure it is suspended.
*
- * If @state is null, we capture the current context.
+ * If \p state is null, we capture the current context.
*/
void
mono_walk_stack_with_state (MonoJitStackWalk func, MonoThreadUnwindState *state, MonoUnwindOptions unwind_options, void *user_data)
/**
* mono_walk_stack_full:
- * @func: callback to call for each stack frame
- * @domain: starting appdomain, can be NULL to use the current domain
- * @unwind_options: what extra information the unwinder should gather
- * @start_ctx: starting state of the stack walk, can be NULL.
- * @thread: the thread whose stack to walk, can be NULL to use the current thread
- * @lmf: the LMF of @thread, can be NULL to use the LMF of the current thread
- * @user_data: data passed to the callback
- *
+ * \param func callback to call for each stack frame
+ * \param domain starting appdomain, can be NULL to use the current domain
+ * \param unwind_options what extra information the unwinder should gather
+ * \param start_ctx starting state of the stack walk, can be NULL.
+ * \param thread the thread whose stack to walk, can be NULL to use the current thread
+ * \param lmf the LMF of \p thread, can be NULL to use the LMF of the current thread
+ * \param user_data data passed to the callback
* This function walks the stack of a thread, starting from the state
- * represented by start_ctx. For each frame the callback
+ * represented by \p start_ctx. For each frame the callback
* function is called with the relevant info. The walk ends when no more
* managed stack frames are found or when the callback returns a TRUE value.
*/
MonoMethod *jmethod = NULL, *actual_method;
StackFrameInfo frame;
gboolean res;
+ Unwinder unwinder;
+ int il_offset = -1;
MONO_ARCH_CONTEXT_DEF;
MONO_INIT_CONTEXT_FROM_FUNC (&ctx, ves_icall_get_frame_info);
#endif
+ unwinder_init (&unwinder);
+
new_ctx = ctx;
do {
ctx = new_ctx;
- res = mono_find_jit_info_ext (domain, jit_tls, NULL, &ctx, &new_ctx, NULL, &lmf, NULL, &frame);
+ res = unwinder_unwind_frame (&unwinder, domain, jit_tls, NULL, &ctx, &new_ctx, NULL, &lmf, NULL, &frame);
if (!res)
return FALSE;
-
- if (frame.type == FRAME_TYPE_MANAGED_TO_NATIVE ||
- frame.type == FRAME_TYPE_DEBUGGER_INVOKE ||
- frame.type == FRAME_TYPE_TRAMPOLINE)
+ switch (frame.type) {
+ case FRAME_TYPE_MANAGED_TO_NATIVE:
+ case FRAME_TYPE_DEBUGGER_INVOKE:
+ case FRAME_TYPE_TRAMPOLINE:
+ case FRAME_TYPE_INTERP_TO_MANAGED:
continue;
+ case FRAME_TYPE_INTERP:
+ skip--;
+ break;
+ default:
+ ji = frame.ji;
+ *native_offset = frame.native_offset;
- ji = frame.ji;
- *native_offset = frame.native_offset;
-
- /* The skip count passed by the caller depends on us not filtering out MANAGED_TO_NATIVE */
- jmethod = jinfo_get_method (ji);
- if (jmethod->wrapper_type != MONO_WRAPPER_NONE && jmethod->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD && jmethod->wrapper_type != MONO_WRAPPER_MANAGED_TO_NATIVE)
- continue;
- skip--;
+ /* The skip count passed by the caller depends on us not filtering out MANAGED_TO_NATIVE */
+ jmethod = jinfo_get_method (ji);
+ if (jmethod->wrapper_type != MONO_WRAPPER_NONE && jmethod->wrapper_type != MONO_WRAPPER_DYNAMIC_METHOD && jmethod->wrapper_type != MONO_WRAPPER_MANAGED_TO_NATIVE)
+ continue;
+ skip--;
+ break;
+ }
} while (skip >= 0);
- actual_method = get_method_from_stack_frame (ji, get_generic_info_from_stack_frame (ji, &ctx));
+ if (frame.type == FRAME_TYPE_INTERP) {
+ jmethod = frame.method;
+ actual_method = frame.actual_method;
+ *native_offset = frame.native_offset;
+ } else {
+ actual_method = get_method_from_stack_frame (ji, get_generic_info_from_stack_frame (ji, &ctx));
+ }
}
MonoReflectionMethod *rm = mono_method_get_object_checked (domain, actual_method, NULL, &error);
}
mono_gc_wbarrier_generic_store (method, (MonoObject*) rm);
- location = mono_debug_lookup_source_location (jmethod, *native_offset, domain);
+ if (il_offset != -1) {
+ location = mono_debug_lookup_source_location_by_il (jmethod, il_offset, domain);
+ } else {
+ location = mono_debug_lookup_source_location (jmethod, *native_offset, domain);
+ }
if (location)
*iloffset = location->il_offset;
else
gint32 filter_idx;
int i;
MonoObject *ex_obj;
+ Unwinder unwinder;
+ gboolean in_interp;
g_assert (ctx != NULL);
filter_idx = 0;
initial_ctx = *ctx;
+ unwinder_init (&unwinder);
+
while (1) {
MonoContext new_ctx;
guint32 free_stack;
if (out_prev_ji)
*out_prev_ji = ji;
- unwind_res = mono_find_jit_info_ext (domain, jit_tls, NULL, ctx, &new_ctx, NULL, &lmf, NULL, &frame);
- if (unwind_res) {
- if (frame.type == FRAME_TYPE_DEBUGGER_INVOKE ||
- frame.type == FRAME_TYPE_MANAGED_TO_NATIVE ||
- frame.type == FRAME_TYPE_TRAMPOLINE) {
- *ctx = new_ctx;
- continue;
- }
- g_assert (frame.type == FRAME_TYPE_MANAGED);
- ji = frame.ji;
- }
-
+ unwind_res = unwinder_unwind_frame (&unwinder, domain, jit_tls, NULL, ctx, &new_ctx, NULL, &lmf, NULL, &frame);
if (!unwind_res) {
setup_stack_trace (mono_ex, dynamic_methods, &trace_ips);
g_slist_free (dynamic_methods);
return FALSE;
}
+ switch (frame.type) {
+ case FRAME_TYPE_DEBUGGER_INVOKE:
+ case FRAME_TYPE_MANAGED_TO_NATIVE:
+ case FRAME_TYPE_TRAMPOLINE:
+ case FRAME_TYPE_INTERP_TO_MANAGED:
+ *ctx = new_ctx;
+ continue;
+ case FRAME_TYPE_INTERP:
+ case FRAME_TYPE_MANAGED:
+ break;
+ default:
+ g_assert_not_reached ();
+ break;
+ }
+
+ in_interp = frame.type == FRAME_TYPE_INTERP;
+ ji = frame.ji;
+
+ gpointer ip;
+ if (in_interp)
+ ip = (guint16*)ji->code_start + frame.native_offset;
+ else
+ ip = MONO_CONTEXT_GET_IP (ctx);
+
frame_count ++;
method = jinfo_get_method (ji);
//printf ("M: %s %d.\n", mono_method_full_name (method, TRUE), frame_count);
if (free_stack <= (64 * 1024))
continue;
- if (is_address_protected (ji, ei, MONO_CONTEXT_GET_IP (ctx))) {
+ if (is_address_protected (ji, ei, ip)) {
/* catch block */
MonoClass *catch_class = get_exception_catch_class (ei, ji, ctx);
*out_ji = ji;
/* mono_debugger_agent_handle_exception () needs this */
- MONO_CONTEXT_SET_IP (ctx, ei->handler_start);
+ if (!in_interp)
+ MONO_CONTEXT_SET_IP (ctx, ei->handler_start);
return TRUE;
}
mono_error_cleanup (&isinst_error);
/**
* mono_handle_exception_internal:
- * @ctx: saved processor state
- * @obj: the exception object
- * @resume: whenever to resume unwinding based on the state in MonoJitTlsData.
+ * \param ctx saved processor state
+ * \param obj the exception object
+ * \param resume whenever to resume unwinding based on the state in \c MonoJitTlsData.
*/
static gboolean
mono_handle_exception_internal (MonoContext *ctx, MonoObject *obj, gboolean resume, MonoJitInfo **out_ji)
int i;
MonoObject *ex_obj;
MonoObject *non_exception = NULL;
+ Unwinder unwinder;
+ gboolean in_interp;
g_assert (ctx != NULL);
if (!obj) {
filter_idx = 0;
initial_ctx = *ctx;
+ unwinder_init (&unwinder);
+
while (1) {
MonoContext new_ctx;
guint32 free_stack;
int clause_index_start = 0;
gboolean unwind_res = TRUE;
+ StackFrameInfo frame;
+ gpointer ip;
if (resume) {
resume = FALSE;
first_filter_idx = jit_tls->resume_state.first_filter_idx;
filter_idx = jit_tls->resume_state.filter_idx;
} else {
- StackFrameInfo frame;
-
- unwind_res = mono_find_jit_info_ext (domain, jit_tls, NULL, ctx, &new_ctx, NULL, &lmf, NULL, &frame);
- if (unwind_res) {
- if (frame.type == FRAME_TYPE_DEBUGGER_INVOKE ||
- frame.type == FRAME_TYPE_MANAGED_TO_NATIVE ||
- frame.type == FRAME_TYPE_TRAMPOLINE) {
- *ctx = new_ctx;
- continue;
- }
- g_assert (frame.type == FRAME_TYPE_MANAGED);
- ji = frame.ji;
+ unwind_res = unwinder_unwind_frame (&unwinder, domain, jit_tls, NULL, ctx, &new_ctx, NULL, &lmf, NULL, &frame);
+ if (!unwind_res) {
+ *(mono_get_lmf_addr ()) = lmf;
+
+ jit_tls->abort_func (obj);
+ g_assert_not_reached ();
+ }
+ switch (frame.type) {
+ case FRAME_TYPE_DEBUGGER_INVOKE:
+ case FRAME_TYPE_MANAGED_TO_NATIVE:
+ case FRAME_TYPE_TRAMPOLINE:
+ *ctx = new_ctx;
+ continue;
+ case FRAME_TYPE_INTERP_TO_MANAGED:
+ continue;
+ case FRAME_TYPE_INTERP:
+ case FRAME_TYPE_MANAGED:
+ break;
+ default:
+ g_assert_not_reached ();
+ break;
}
+ in_interp = frame.type == FRAME_TYPE_INTERP;
+ ji = frame.ji;
}
- if (!unwind_res) {
- *(mono_get_lmf_addr ()) = lmf;
-
- jit_tls->abort_func (obj);
- g_assert_not_reached ();
- }
+ if (in_interp)
+ ip = (guint16*)ji->code_start + frame.native_offset;
+ else
+ ip = MONO_CONTEXT_GET_IP (ctx);
method = jinfo_get_method (ji);
frame_count ++;
if (free_stack <= (64 * 1024))
continue;
- if (is_address_protected (ji, ei, MONO_CONTEXT_GET_IP (ctx))) {
+ if (is_address_protected (ji, ei, ip)) {
/* catch block */
MonoClass *catch_class = get_exception_catch_class (ei, ji, ctx);
mono_profiler_exception_clause_handler (method, ei->flags, i);
jit_tls->orig_ex_ctx_set = FALSE;
mini_set_abort_threshold (ctx);
- MONO_CONTEXT_SET_IP (ctx, ei->handler_start);
+
+ if (in_interp) {
+ /*
+ * ctx->pc points into the interpreter, after the call which transitioned to
+ * JITted code. Store the unwind state into the
+ * interpeter state, then resume, the interpreter will unwind itself until
+ * it reaches the target frame and will continue execution from there.
+ * The resuming is kinda hackish, from the native code standpoint, it looks
+ * like the call which transitioned to JITted code has succeeded, but the
+ * return value register etc. is not set, so we have to be careful.
+ */
+ mono_interp_set_resume_state (mono_ex, &frame, ei->handler_start);
+ /* Undo the IP adjustment done by mono_arch_unwind_frame () */
+#ifdef TARGET_AMD64
+ ctx->gregs [AMD64_RIP] ++;
+#else
+ NOT_IMPLEMENTED;
+#endif
+ } else {
+ MONO_CONTEXT_SET_IP (ctx, ei->handler_start);
+ }
mono_set_lmf (lmf);
#ifndef DISABLE_PERFCOUNTERS
mono_perfcounters->exceptions_depth += frame_count;
return 0;
} else {
mini_set_abort_threshold (ctx);
- call_filter (ctx, ei->handler_start);
+ if (in_interp)
+ mono_interp_run_finally (&frame, i, ei->handler_start);
+ else
+ call_filter (ctx, ei->handler_start);
}
}
}
/**
* mono_debugger_run_finally:
- * @start_ctx: saved processor state
- *
- * This method is called by the Mono Debugger to call all `finally' clauses of the
- * current stack frame. It's used when the user issues a `return' command to make
+ * \param start_ctx saved processor state
+ * This method is called by the Mono Debugger to call all \c finally clauses of the
+ * current stack frame. It's used when the user issues a \c return command to make
* the current stack frame return. After returning from this method, the debugger
* unwinds the stack one frame and gives control back to the user.
- *
* NOTE: This method is only used when running inside the Mono Debugger.
*/
void
/**
* mono_handle_exception:
- * @ctx: saved processor state
- * @obj: the exception object
+ * \param ctx saved processor state
+ * \param obj the exception object
*/
gboolean
mono_handle_exception (MonoContext *ctx, MonoObject *obj)
mono_runtime_stdout_fflush ();
}
-/*
+/**
* mono_print_thread_dump:
*
- * Print information about the current thread to stdout.
- * SIGCTX can be NULL, allowing this to be called from gdb.
+ * Print information about the current thread to stdout.
+ * \p sigctx can be NULL, allowing this to be called from gdb.
*/
void
mono_print_thread_dump (void *sigctx)
guint8*
mono_jinfo_get_unwind_info (MonoJitInfo *ji, guint32 *unwind_info_len)
{
- if (ji->from_aot)
+ if (ji->has_unwind_info) {
+ /* The address/length in the MonoJitInfo structure itself */
+ MonoUnwindJitInfo *info = mono_jit_info_get_unwind_info (ji);
+ *unwind_info_len = info->unw_info_len;
+ return info->unw_info;
+ } else if (ji->from_aot)
return mono_aot_get_unwind_info (ji, unwind_info_len);
else
return mono_get_cached_unwind_info (ji->unwind_info, unwind_info_len);
g_assert_not_reached ();
}
#endif
+
+#ifndef ENABLE_INTERPRETER
+/* Stubs of interpreter functions */
+void
+mono_interp_set_resume_state (MonoException *ex, StackFrameInfo *frame, gpointer handler_ip)
+{
+ g_assert_not_reached ();
+}
+
+void
+mono_interp_run_finally (StackFrameInfo *frame, int clause_index, gpointer handler_ip)
+{
+ g_assert_not_reached ();
+}
+
+void
+mono_interp_frame_iter_init (MonoInterpStackIter *iter, gpointer interp_exit_data)
+{
+ g_assert_not_reached ();
+}
+
+gboolean
+mono_interp_frame_iter_next (MonoInterpStackIter *iter, StackFrameInfo *frame)
+{
+ g_assert_not_reached ();
+ return FALSE;
+}
+#endif
projects / mono.git / blobdiff