* config/m68hc11/m68hc11.c (m68hc11_emit_libcall): Use gcc_assert

[pf3gnuchains/gcc-fork.git] / gcc / unwind-dw2.c

diff --git a/gcc/unwind-dw2.c b/gcc/unwind-dw2.c
index 3815d9f..4ffdd02 100644 (file)
--- a/gcc/unwind-dw2.c
+++ b/gcc/unwind-dw2.c
@@ -1,5 +1,5 @@
 /* DWARF2 exception handling and frame unwind runtime interface routines.
-   Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003
+   Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
    Free Software Foundation, Inc.
 
    This file is part of GCC.
@@ -60,11 +60,6 @@
 #define DWARF_REG_TO_UNWIND_COLUMN(REGNO) (REGNO)
 #endif
 
-/* A target can do some update context frobbing.  */
-#ifndef MD_FROB_UPDATE_CONTEXT
-#define MD_FROB_UPDATE_CONTEXT(CTX, FS) do { } while (0)
-#endif
-
 /* This is the register and unwind state for a particular frame.  This
    provides the information necessary to unwind up past a frame and return
    to its caller.  */
@@ -130,6 +125,11 @@ _Unwind_GetGR (struct _Unwind_Context *context, int index)
   int size;
   void *ptr;
 
+#ifdef DWARF_ZERO_REG
+  if (index == DWARF_ZERO_REG)
+    return 0;
+#endif
+
   index = DWARF_REG_TO_UNWIND_COLUMN (index);
   if (index >= (int) sizeof(dwarf_reg_size_table))
     abort ();
@@ -252,6 +252,10 @@ _Unwind_GetTextRelBase (struct _Unwind_Context *context)
   return (_Unwind_Ptr) context->bases.tbase;
 }
 #endif
+
+#ifdef MD_UNWIND_SUPPORT
+#include MD_UNWIND_SUPPORT
+#endif
 \f
 /* Extract any interesting information from the CIE for the translation
    unit F belongs to.  Return a pointer to the byte after the augmentation,
@@ -622,6 +626,10 @@ execute_stack_op (const unsigned char *op_ptr, const unsigned char *op_end,
        case DW_OP_mul:
        case DW_OP_or:
        case DW_OP_plus:
+       case DW_OP_shl:
+       case DW_OP_shr:
+       case DW_OP_shra:
+       case DW_OP_xor:
        case DW_OP_le:
        case DW_OP_ge:
        case DW_OP_eq:
@@ -841,7 +849,7 @@ execute_cfa_program (const unsigned char *insn_ptr,
                unused_rs = unused_rs->prev;
              }
            else
-             new_rs = __builtin_alloca (sizeof (struct frame_state_reg_info));
+             new_rs = alloca (sizeof (struct frame_state_reg_info));
 
            *new_rs = fs->regs;
            fs->regs.prev = new_rs;
@@ -963,14 +971,11 @@ uw_frame_state_for (struct _Unwind_Context *context, _Unwind_FrameState *fs)
   fde = _Unwind_Find_FDE (context->ra - 1, &context->bases);
   if (fde == NULL)
     {
+#ifdef MD_FALLBACK_FRAME_STATE_FOR
       /* Couldn't find frame unwind info for this function.  Try a
         target-specific fallback mechanism.  This will necessarily
         not provide a personality routine or LSDA.  */
-#ifdef MD_FALLBACK_FRAME_STATE_FOR
-      MD_FALLBACK_FRAME_STATE_FOR (context, fs, success);
-      return _URC_END_OF_STACK;
-    success:
-      return _URC_NO_REASON;
+      return MD_FALLBACK_FRAME_STATE_FOR (context, fs);
 #else
       return _URC_END_OF_STACK;
 #endif
@@ -1176,7 +1181,9 @@ uw_update_context_1 (struct _Unwind_Context *context, _Unwind_FrameState *fs)
        break;
       }
 
+#ifdef MD_FROB_UPDATE_CONTEXT
   MD_FROB_UPDATE_CONTEXT (context, fs);
+#endif
 }
 
 /* CONTEXT describes the unwind state for a frame, and FS describes the FDE
@@ -1317,4 +1324,23 @@ uw_identify_context (struct _Unwind_Context *context)
 
 #include "unwind.inc"
 
+#if defined (USE_GAS_SYMVER) && defined (SHARED) && defined (USE_LIBUNWIND_EXCEPTIONS)
+alias (_Unwind_Backtrace);
+alias (_Unwind_DeleteException);
+alias (_Unwind_FindEnclosingFunction);
+alias (_Unwind_ForcedUnwind);
+alias (_Unwind_GetDataRelBase);
+alias (_Unwind_GetTextRelBase);
+alias (_Unwind_GetCFA);
+alias (_Unwind_GetGR);
+alias (_Unwind_GetIP);
+alias (_Unwind_GetLanguageSpecificData);
+alias (_Unwind_GetRegionStart);
+alias (_Unwind_RaiseException);
+alias (_Unwind_Resume);
+alias (_Unwind_Resume_or_Rethrow);
+alias (_Unwind_SetGR);
+alias (_Unwind_SetIP);
+#endif
+
 #endif /* !USING_SJLJ_EXCEPTIONS */