#define GENERIC_EXCEPTION_SIZE 256
-#ifdef CUSTOM_EXCEPTION_HANDLING
-static gboolean arch_handle_exception (MonoContext *ctx, gpointer obj, gboolean test_only);
-#endif
-
/* XXX */
#if 1
#define restore_regs_from_context(ctx_reg,ip_reg,tmp_reg) do { \
/* Save global registers on stack (s0 - s7) */
offset = 16;
- mips_sw (code, mips_s0, mips_sp, offset); offset += 4;
- mips_sw (code, mips_s1, mips_sp, offset); offset += 4;
- mips_sw (code, mips_s2, mips_sp, offset); offset += 4;
- mips_sw (code, mips_s3, mips_sp, offset); offset += 4;
- mips_sw (code, mips_s4, mips_sp, offset); offset += 4;
- mips_sw (code, mips_s5, mips_sp, offset); offset += 4;
- mips_sw (code, mips_s6, mips_sp, offset); offset += 4;
- mips_sw (code, mips_s7, mips_sp, offset); offset += 4;
- mips_sw (code, mips_fp, mips_sp, offset); offset += 4;
+ mips_sw (code, mips_s0, mips_sp, offset); offset += IREG_SIZE;
+ mips_sw (code, mips_s1, mips_sp, offset); offset += IREG_SIZE;
+ mips_sw (code, mips_s2, mips_sp, offset); offset += IREG_SIZE;
+ mips_sw (code, mips_s3, mips_sp, offset); offset += IREG_SIZE;
+ mips_sw (code, mips_s4, mips_sp, offset); offset += IREG_SIZE;
+ mips_sw (code, mips_s5, mips_sp, offset); offset += IREG_SIZE;
+ mips_sw (code, mips_s6, mips_sp, offset); offset += IREG_SIZE;
+ mips_sw (code, mips_s7, mips_sp, offset); offset += IREG_SIZE;
+ mips_sw (code, mips_fp, mips_sp, offset); offset += IREG_SIZE;
/* Restore global registers from MonoContext, including the frame pointer */
mips_lw (code, mips_s0, mips_a0, G_STRUCT_OFFSET (MonoContext, sc_regs[mips_s0]));
/* restore all regs from the stack */
offset = 16;
- mips_lw (code, mips_s0, mips_sp, offset); offset += 4;
- mips_lw (code, mips_s1, mips_sp, offset); offset += 4;
- mips_lw (code, mips_s2, mips_sp, offset); offset += 4;
- mips_lw (code, mips_s3, mips_sp, offset); offset += 4;
- mips_lw (code, mips_s4, mips_sp, offset); offset += 4;
- mips_lw (code, mips_s5, mips_sp, offset); offset += 4;
- mips_lw (code, mips_s6, mips_sp, offset); offset += 4;
- mips_lw (code, mips_s7, mips_sp, offset); offset += 4;
- mips_lw (code, mips_fp, mips_sp, offset); offset += 4;
+ mips_lw (code, mips_s0, mips_sp, offset); offset += IREG_SIZE;
+ mips_lw (code, mips_s1, mips_sp, offset); offset += IREG_SIZE;
+ mips_lw (code, mips_s2, mips_sp, offset); offset += IREG_SIZE;
+ mips_lw (code, mips_s3, mips_sp, offset); offset += IREG_SIZE;
+ mips_lw (code, mips_s4, mips_sp, offset); offset += IREG_SIZE;
+ mips_lw (code, mips_s5, mips_sp, offset); offset += IREG_SIZE;
+ mips_lw (code, mips_s6, mips_sp, offset); offset += IREG_SIZE;
+ mips_lw (code, mips_s7, mips_sp, offset); offset += IREG_SIZE;
+ mips_lw (code, mips_fp, mips_sp, offset); offset += IREG_SIZE;
/* epilog */
mips_lw (code, mips_ra, mips_sp, alloc_size + MIPS_RET_ADDR_OFFSET);
if (!rethrow)
mono_ex->stack_trace = NULL;
}
-#ifdef CUSTOM_EXCEPTION_HANDLING
- arch_handle_exception (&ctx, exc, FALSE);
-#else
mono_handle_exception (&ctx, exc, (void *)eip, FALSE);
-#endif
#ifdef DEBUG_EXCEPTIONS
g_print ("throw_exception: restore to pc=%p sp=%p fp=%p ctx=%p\n",
(void *) ctx.sc_pc, (void *) ctx.sc_regs[mips_sp],
/* Save all the regs on the stack */
for (i = 0; i < MONO_MAX_IREGS; i++) {
if (i != mips_sp)
- mips_sw (code, i, mips_sp, i*sizeof(guint32) + MIPS_STACK_PARAM_OFFSET);
+ mips_sw (code, i, mips_sp, i*IREG_SIZE + MIPS_STACK_PARAM_OFFSET);
else {
mips_addiu (code, mips_at, mips_sp, alloc_size);
- mips_sw (code, mips_at, mips_sp, i*sizeof(guint32) + MIPS_STACK_PARAM_OFFSET);
+ mips_sw (code, mips_at, mips_sp, i*IREG_SIZE + MIPS_STACK_PARAM_OFFSET);
}
}
if (managed)
*managed = FALSE;
- *new_ctx = *ctx;
- setup_context (new_ctx);
+ memcpy (new_ctx, ctx, sizeof (MonoContext));
if (ji != NULL) {
int i;
#ifdef DEBUG_EXCEPTIONS
g_print ("mono_arch_handle_exception: pc=%p\n", (void *) mctx.sc_pc);
#endif
-#ifdef CUSTOM_EXCEPTION_HANDLING
- result = arch_handle_exception (&mctx, obj, test_only);
-#else
mono_handle_exception (&mctx, obj, (gpointer)mctx.sc_pc, test_only);
result = TRUE;
-#endif
#ifdef DEBUG_EXCEPTIONS
g_print ("mono_arch_handle_exception: restore pc=%p\n", (void *)mctx.sc_pc);
return result;
}
-#ifdef CUSTOM_EXCEPTION_HANDLING
-/**
- * arch_handle_exception:
- * @ctx: saved processor state
- * @obj: the exception object
- * @test_only: only test if the exception is caught, but dont call handlers
- *
- *
- */
-static gboolean
-arch_handle_exception (MonoContext *ctx, gpointer obj, gboolean test_only)
-{
- MonoDomain *domain = mono_domain_get ();
- MonoJitInfo *ji, rji;
- static int (*call_filter) (MonoContext *, gpointer, gpointer) = NULL;
- MonoJitTlsData *jit_tls = TlsGetValue (mono_jit_tls_id);
- MonoLMF *lmf = jit_tls->lmf;
- GList *trace_ips = NULL;
- MonoException *mono_ex;
- MonoArray *initial_trace_ips = NULL;
- int frame_count = 0;
- gboolean has_dynamic_methods = FALSE;
-
- g_assert (ctx != NULL);
- if (!obj) {
- MonoException *ex = mono_get_exception_null_reference ();
- ex->message = mono_string_new (domain,
- "Object reference not set to an instance of an object");
- obj = (MonoObject *)ex;
- }
-
- if (mono_object_isinst (obj, mono_defaults.exception_class)) {
- mono_ex = (MonoException*)obj;
- initial_trace_ips = mono_ex->trace_ips;
- } else {
- mono_ex = NULL;
- }
-
-
- if (!call_filter)
- call_filter = mono_arch_get_call_filter ();
-
- g_assert (jit_tls->end_of_stack);
- g_assert (jit_tls->abort_func);
-
- if (!test_only) {
- MonoContext ctx_cp = *ctx;
- setup_context (&ctx_cp);
- if (mono_jit_trace_calls != NULL)
- g_print ("EXCEPTION handling: %s\n", mono_object_class (obj)->name);
- if (!arch_handle_exception (&ctx_cp, obj, TRUE)) {
- if (mono_break_on_exc)
- G_BREAKPOINT ();
- mono_unhandled_exception (obj);
- }
- }
-
- memset (&rji, 0, sizeof (rji));
-
- while (1) {
- MonoContext new_ctx;
-
- setup_context (&new_ctx);
- ji = mono_arch_find_jit_info (domain, jit_tls, &rji, &rji, ctx, &new_ctx,
- NULL, &lmf, NULL, NULL);
- if (!ji) {
- g_warning ("Exception inside function without unwind info");
- g_assert_not_reached ();
- }
-
- if (ji != (gpointer)-1) {
- frame_count ++;
-
- if (test_only && ji->method->wrapper_type != MONO_WRAPPER_RUNTIME_INVOKE && mono_ex) {
- /*
- * Avoid overwriting the stack trace if the exception is
- * rethrown. Also avoid giant stack traces during a stack
- * overflow.
- */
- if (!initial_trace_ips && (frame_count < 1000)) {
- trace_ips = g_list_prepend (trace_ips, MONO_CONTEXT_GET_IP (ctx));
-
- }
- }
-
- if (ji->method->dynamic)
- has_dynamic_methods = TRUE;
-
- if (ji->num_clauses) {
- int i;
-
- g_assert (ji->clauses);
-
- for (i = 0; i < ji->num_clauses; i++) {
- MonoJitExceptionInfo *ei = &ji->clauses [i];
- gboolean filtered = FALSE;
-
- if (ei->try_start <= MONO_CONTEXT_GET_IP (ctx) &&
- MONO_CONTEXT_GET_IP (ctx) <= ei->try_end) {
- /* catch block */
-
- if ((ei->flags == MONO_EXCEPTION_CLAUSE_NONE) || (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)) {
- /* store the exception object int cfg->excvar */
- g_assert (ei->exvar_offset);
- /* need to use the frame pointer (mips_fp): methods with clauses always have mips_fp */
- *((gpointer *)(void*)((char *)(ctx->sc_regs [mips_fp]) + ei->exvar_offset)) = obj;
- }
-
- if (ei->flags == MONO_EXCEPTION_CLAUSE_FILTER)
- filtered = call_filter (ctx, ei->data.filter, mono_ex);
-
- if ((ei->flags == MONO_EXCEPTION_CLAUSE_NONE &&
- mono_object_isinst (obj, ei->data.catch_class)) || filtered) {
- if (test_only) {
- if (mono_ex && !initial_trace_ips) {
- trace_ips = g_list_reverse (trace_ips);
- mono_ex->trace_ips = glist_to_array (trace_ips, mono_defaults.int_class);
- if (has_dynamic_methods)
- /* These methods could go away anytime, so compute the stack trace now */
- mono_ex->stack_trace = ves_icall_System_Exception_get_trace (mono_ex);
- }
- g_list_free (trace_ips);
- return TRUE;
- }
- if (mono_jit_trace_calls != NULL)
- g_print ("EXCEPTION: catch found at clause %d of %s\n", i, mono_method_full_name (ji->method, TRUE));
- /*g_print ("stack for catch: %p\n", MONO_CONTEXT_GET_BP (ctx));*/
- MONO_CONTEXT_SET_IP (ctx, ei->handler_start);
- jit_tls->lmf = lmf;
- return 0;
- }
- if (!test_only && ei->try_start <= MONO_CONTEXT_GET_IP (ctx) &&
- MONO_CONTEXT_GET_IP (ctx) < ei->try_end &&
- (ei->flags & MONO_EXCEPTION_CLAUSE_FINALLY)) {
- if (mono_jit_trace_calls != NULL)
- g_print ("EXCEPTION: finally clause %d of %s\n", i, mono_method_full_name (ji->method, TRUE));
- call_filter (ctx, ei->handler_start, NULL);
- }
-
- }
- }
- }
- }
-
- *ctx = new_ctx;
- setup_context (ctx);
-
- if ((ji == (gpointer)-1) || MONO_CONTEXT_GET_BP (ctx) >= jit_tls->end_of_stack) {
- if (!test_only) {
- jit_tls->lmf = lmf;
- jit_tls->abort_func (obj);
- g_assert_not_reached ();
- } else {
- if (mono_ex && !initial_trace_ips) {
- trace_ips = g_list_reverse (trace_ips);
- mono_ex->trace_ips = glist_to_array (trace_ips, mono_defaults.int_class);
- if (has_dynamic_methods)
- /* These methods could go away anytime, so compute the stack trace now */
- mono_ex->stack_trace = ves_icall_System_Exception_get_trace (mono_ex);
- }
- g_list_free (trace_ips);
- return FALSE;
- }
- }
- }
-
- g_assert_not_reached ();
-}
-#endif /* CUSTOM_EXCEPTION_HANDLING */
gboolean
mono_arch_has_unwind_info (gconstpointer addr)
projects / mono.git / blobdiff