Merge pull request #1936 from esdrubal/DotNetRelativeOrAbsolute

[mono.git] / mono / mini / exceptions-x86.c

diff --git a/mono/mini/exceptions-x86.c b/mono/mini/exceptions-x86.c
index d7d4f72d299091b426195e49712a4002b98c0eda..3db25ca7f810f8ab363fe926b3a75c355c3e10da 100644 (file)
--- a/mono/mini/exceptions-x86.c
+++ b/mono/mini/exceptions-x86.c
@@ -12,6 +12,9 @@
 #include <glib.h>
 #include <signal.h>
 #include <string.h>
+#ifdef HAVE_UCONTEXT_H
+#include <ucontext.h>
+#endif
 
 #include <mono/metadata/abi-details.h>
 #include <mono/arch/x86/x86-codegen.h>
@@ -160,7 +163,7 @@ win32_handle_stack_overflow (EXCEPTION_POINTERS* ep, struct sigcontext *sctx)
        do {
                MonoContext new_ctx;
 
-               mono_arch_find_jit_info (domain, jit_tls, &rji, &ctx, &new_ctx, &lmf, NULL, &frame);
+               mono_arch_unwind_frame (domain, jit_tls, &rji, &ctx, &new_ctx, &lmf, NULL, &frame);
                if (!frame.ji) {
                        g_warning ("Exception inside function without unwind info");
                        g_assert_not_reached ();
@@ -561,8 +564,7 @@ get_throw_trampoline (const char *name, gboolean rethrow, gboolean llvm, gboolea
         * <return addr> <- esp (unaligned on apple)
         */
 
-       mono_add_unwind_op_def_cfa (unwind_ops, (guint8*)NULL, (guint8*)NULL, X86_ESP, 4);
-       mono_add_unwind_op_offset (unwind_ops, (guint8*)NULL, (guint8*)NULL, X86_NREG, -4);
+       unwind_ops = mono_arch_get_cie_program ();
 
        /* Alloc frame */
        x86_alu_reg_imm (code, X86_SUB, X86_ESP, stack_size);
@@ -714,6 +716,7 @@ void
 mono_arch_exceptions_init (void)
 {
        guint8 *tramp;
+       MonoTrampInfo *tinfo;
 
 /* 
  * If we're running WoW64, we need to set the usermode exception policy 
@@ -742,31 +745,37 @@ mono_arch_exceptions_init (void)
        }
 
        /* LLVM needs different throw trampolines */
-       tramp = get_throw_trampoline ("llvm_throw_exception_trampoline", FALSE, TRUE, FALSE, FALSE, FALSE, NULL, FALSE);
+       tramp = get_throw_trampoline ("llvm_throw_exception_trampoline", FALSE, TRUE, FALSE, FALSE, FALSE, &tinfo, FALSE);
        mono_register_jit_icall (tramp, "llvm_throw_exception_trampoline", NULL, TRUE);
+       mono_tramp_info_register (tinfo, NULL);
 
-       tramp = get_throw_trampoline ("llvm_rethrow_exception_trampoline", FALSE, TRUE, FALSE, FALSE, FALSE, NULL, FALSE);
+       tramp = get_throw_trampoline ("llvm_rethrow_exception_trampoline", TRUE, TRUE, FALSE, FALSE, FALSE, &tinfo, FALSE);
        mono_register_jit_icall (tramp, "llvm_rethrow_exception_trampoline", NULL, TRUE);
+       mono_tramp_info_register (tinfo, NULL);
 
-       tramp = get_throw_trampoline ("llvm_throw_corlib_exception_trampoline", FALSE, TRUE, TRUE, FALSE, FALSE, NULL, FALSE);
+       tramp = get_throw_trampoline ("llvm_throw_corlib_exception_trampoline", FALSE, TRUE, TRUE, FALSE, FALSE, &tinfo, FALSE);
        mono_register_jit_icall (tramp, "llvm_throw_corlib_exception_trampoline", NULL, TRUE);
+       mono_tramp_info_register (tinfo, NULL);
 
-       tramp = get_throw_trampoline ("llvm_throw_corlib_exception_abs_trampoline", FALSE, TRUE, TRUE, TRUE, FALSE, NULL, FALSE);
+       tramp = get_throw_trampoline ("llvm_throw_corlib_exception_abs_trampoline", FALSE, TRUE, TRUE, TRUE, FALSE, &tinfo, FALSE);
        mono_register_jit_icall (tramp, "llvm_throw_corlib_exception_abs_trampoline", NULL, TRUE);
+       mono_tramp_info_register (tinfo, NULL);
 
-       tramp = get_throw_trampoline ("llvm_resume_unwind_trampoline", FALSE, FALSE, FALSE, FALSE, TRUE, NULL, FALSE);
+       tramp = get_throw_trampoline ("llvm_resume_unwind_trampoline", FALSE, FALSE, FALSE, FALSE, TRUE, &tinfo, FALSE);
        mono_register_jit_icall (tramp, "llvm_resume_unwind_trampoline", NULL, TRUE);
+       mono_tramp_info_register (tinfo, NULL);
 
-       signal_exception_trampoline = mono_x86_get_signal_exception_trampoline (NULL, FALSE);
+       signal_exception_trampoline = mono_x86_get_signal_exception_trampoline (&tinfo, FALSE);
+       mono_tramp_info_register (tinfo, NULL);
 }
 
 /*
- * mono_arch_find_jit_info:
+ * mono_arch_unwind_frame:
  *
  * See exceptions-amd64.c for docs.
  */
 gboolean
-mono_arch_find_jit_info (MonoDomain *domain, MonoJitTlsData *jit_tls, 
+mono_arch_unwind_frame (MonoDomain *domain, MonoJitTlsData *jit_tls, 
                                                         MonoJitInfo *ji, MonoContext *ctx, 
                                                         MonoContext *new_ctx, MonoLMF **lmf,
                                                         mgreg_t **save_locations,
@@ -785,7 +794,10 @@ mono_arch_find_jit_info (MonoDomain *domain, MonoJitTlsData *jit_tls,
                guint32 unwind_info_len;
                guint8 *unwind_info;
 
-               frame->type = FRAME_TYPE_MANAGED;
+               if (ji->is_trampoline)
+                       frame->type = FRAME_TYPE_TRAMPOLINE;
+               else
+                       frame->type = FRAME_TYPE_MANAGED;
 
                unwind_info = mono_jinfo_get_unwind_info (ji, &unwind_info_len);
 
@@ -881,7 +893,7 @@ mono_arch_find_jit_info (MonoDomain *domain, MonoJitTlsData *jit_tls,
 gpointer
 mono_arch_ip_from_context (void *sigctx)
 {
-#if defined(__native_client__)
+#if defined(__native_client__) || defined(HOST_WATCHOS)
        printf("WARNING: mono_arch_ip_from_context() called!\n");
        return (NULL);
 #elif defined(MONO_ARCH_USE_SIGACTION)
@@ -928,11 +940,12 @@ mono_x86_get_signal_exception_trampoline (MonoTrampInfo **info, gboolean aot)
 
        start = code = mono_global_codeman_reserve (128);
 
+       /* FIXME no unwind before we push ip */
        /* Caller ip */
        x86_push_reg (code, X86_ECX);
 
-       mono_add_unwind_op_def_cfa (unwind_ops, (guint8*)NULL, (guint8*)NULL, X86_ESP, 4);
-       mono_add_unwind_op_offset (unwind_ops, (guint8*)NULL, (guint8*)NULL, X86_NREG, -4);
+       mono_add_unwind_op_def_cfa (unwind_ops, code, start, X86_ESP, 4);
+       mono_add_unwind_op_offset (unwind_ops, code, start, X86_NREG, -4);
 
        /* Fix the alignment to be what apple expects */
        stack_size = 12;