Blob Blame History Raw
--- gcc/unwind-dw2.c.jj	2006-05-22 13:39:48.000000000 -0400
+++ gcc/unwind-dw2.c	2006-05-22 13:48:20.000000000 -0400
@@ -61,8 +61,8 @@ struct _Unwind_Context
   void *ra;
   void *lsda;
   struct dwarf_eh_bases bases;
+#define SIGNAL_FRAME_BIT ((~(_Unwind_Word) 0 >> 1) + 1)
   _Unwind_Word args_size;
-  char signal_frame;
 };
 
 /* Byte size of every register managed by these routines.  */
@@ -201,7 +201,7 @@ _Unwind_GetIP (struct _Unwind_Context *c
 inline _Unwind_Ptr
 _Unwind_GetIPInfo (struct _Unwind_Context *context, int *ip_before_insn)
 {
-  *ip_before_insn = context->signal_frame != 0;
+  *ip_before_insn = (context->args_size & SIGNAL_FRAME_BIT) != 0;
   return (_Unwind_Ptr) context->ra;
 }
 
@@ -758,7 +758,8 @@ execute_cfa_program (const unsigned char
      reflected at the point immediately before the call insn.
      In signal frames, return address is after last completed instruction,
      so we add 1 to return address to make the comparison <=.  */
-  while (insn_ptr < insn_end && fs->pc < context->ra + context->signal_frame)
+  while (insn_ptr < insn_end
+	 && fs->pc < context->ra + ((context->args_size & SIGNAL_FRAME_BIT) != 0))
     {
       unsigned char insn = *insn_ptr++;
       _Unwind_Word reg, utmp;
@@ -918,7 +919,14 @@ execute_cfa_program (const unsigned char
 	  break;
 
 	case DW_CFA_GNU_args_size:
-	  insn_ptr = read_uleb128 (insn_ptr, &context->args_size);
+	  {
+	    _Unwind_Word args_size;
+	    insn_ptr = read_uleb128 (insn_ptr, &args_size);
+	    if (args_size & SIGNAL_FRAME_BIT)
+	      abort ();
+	    context->args_size
+	      = (context->args_size & SIGNAL_FRAME_BIT) | args_size;
+	  }
 	  break;
 
 	case DW_CFA_GNU_negative_offset_extended:
@@ -945,10 +953,10 @@ uw_frame_state_for (struct _Unwind_Conte
   const unsigned char *aug, *insn, *end;
 
   memset (fs, 0, sizeof (*fs));
-  context->args_size = 0;
+  context->args_size &= SIGNAL_FRAME_BIT;
   context->lsda = 0;
 
-  fde = _Unwind_Find_FDE (context->ra + context->signal_frame - 1,
+  fde = _Unwind_Find_FDE (context->ra + ((context->args_size & SIGNAL_FRAME_BIT) != 0) - 1,
 			  &context->bases);
   if (fde == NULL)
     {
@@ -1092,7 +1100,7 @@ __frame_state_for (void *pc_target, stru
   state_in->cfa_offset = fs.cfa_offset;
   state_in->cfa_reg = fs.cfa_reg;
   state_in->retaddr_column = fs.retaddr_column;
-  state_in->args_size = context.args_size;
+  state_in->args_size = context.args_size & ~SIGNAL_FRAME_BIT;
   state_in->eh_ptr = fs.eh_ptr;
 
 #ifdef __linux__
@@ -1287,7 +1295,10 @@ uw_update_context_1 (struct _Unwind_Cont
 	break;
       }
 
-  context->signal_frame = fs->signal_frame;
+  if (fs->signal_frame)
+    context->args_size |= SIGNAL_FRAME_BIT;
+  else
+    context->args_size &= ~SIGNAL_FRAME_BIT;
 
   MD_FROB_UPDATE_CONTEXT (context, fs);
 }
@@ -1403,9 +1414,9 @@ uw_install_context_1 (struct _Unwind_Con
 
     /* We adjust SP by the difference between CURRENT and TARGET's CFA.  */
     if (STACK_GROWS_DOWNWARD)
-      return target_cfa - current->cfa + target->args_size;
+      return target_cfa - current->cfa + (target->args_size & ~SIGNAL_FRAME_BIT);
     else
-      return current->cfa - target_cfa - target->args_size;
+      return current->cfa - target_cfa - (target->args_size & ~SIGNAL_FRAME_BIT);
   }
 #else
   return 0;
--- libjava/exception.cc.jj	2006-05-22 13:39:48.000000000 -0400
+++ libjava/exception.cc	2006-05-22 14:48:30.000000000 -0400
@@ -31,6 +31,153 @@ namespace std
 }
 #include "unwind.h"
 
+#if defined PIC && !defined __ia64__
+
+#include <dlfcn.h>
+
+extern "C" {
+
+static void *libgcc_s_handle;
+
+_Unwind_Reason_Code __attribute__((visibility ("hidden")))
+_Unwind_RaiseException (struct _Unwind_Exception *exc)
+{
+  static _Unwind_Reason_Code (*RaiseException) (struct _Unwind_Exception *);
+
+  if (RaiseException == NULL)
+    {
+      if (libgcc_s_handle == NULL)
+	libgcc_s_handle = dlopen ("libgcc_s.so.1", RTLD_LAZY);
+      RaiseException = (__typeof (RaiseException))
+	dlsym (libgcc_s_handle, "_Unwind_RaiseException");
+    }
+  return RaiseException (exc);
+}
+
+void __attribute__((visibility ("hidden")))
+_Unwind_Resume (struct _Unwind_Exception *exc)
+{
+  static void (*Resume) (struct _Unwind_Exception *);
+
+  if (Resume == NULL)
+    {
+      if (libgcc_s_handle == NULL)
+	libgcc_s_handle = dlopen ("libgcc_s.so.1", RTLD_LAZY);
+      Resume = (__typeof (Resume))
+	dlsym (libgcc_s_handle, "_Unwind_Resume");
+    }
+  Resume (exc);
+}
+
+__attribute__((visibility ("hidden"))) void * 
+_Unwind_GetLanguageSpecificData (struct _Unwind_Context *ctx)
+{
+  static void * (*GetLanguageSpecificData) (struct _Unwind_Context *);
+
+  if (GetLanguageSpecificData == NULL)
+    {
+      if (libgcc_s_handle == NULL)
+	libgcc_s_handle = dlopen ("libgcc_s.so.1", RTLD_LAZY);
+      GetLanguageSpecificData = (__typeof (GetLanguageSpecificData))
+	dlsym (libgcc_s_handle, "_Unwind_GetLanguageSpecificData");
+    }
+  return GetLanguageSpecificData (ctx);
+}
+
+_Unwind_Ptr __attribute__((visibility ("hidden")))
+_Unwind_GetRegionStart (struct _Unwind_Context *ctx)
+{
+  static _Unwind_Ptr (*GetRegionStart) (struct _Unwind_Context *);
+
+  if (GetRegionStart == NULL)
+    {
+      if (libgcc_s_handle == NULL)
+	libgcc_s_handle = dlopen ("libgcc_s.so.1", RTLD_LAZY);
+      GetRegionStart = (__typeof (GetRegionStart))
+	dlsym (libgcc_s_handle, "_Unwind_GetRegionStart");
+    }
+  return GetRegionStart (ctx);
+}
+
+_Unwind_Ptr __attribute__((visibility ("hidden")))
+_Unwind_GetDataRelBase (struct _Unwind_Context *ctx)
+{
+  static _Unwind_Ptr (*GetDataRelBase) (struct _Unwind_Context *);
+
+  if (GetDataRelBase == NULL)
+    {
+      if (libgcc_s_handle == NULL)
+	libgcc_s_handle = dlopen ("libgcc_s.so.1", RTLD_LAZY);
+      GetDataRelBase = (__typeof (GetDataRelBase))
+	dlsym (libgcc_s_handle, "_Unwind_GetDataRelBase");
+    }
+  return GetDataRelBase (ctx);
+}
+
+_Unwind_Ptr __attribute__((visibility ("hidden")))
+_Unwind_GetTextRelBase (struct _Unwind_Context *ctx)
+{
+  static _Unwind_Ptr (*GetTextRelBase) (struct _Unwind_Context *);
+
+  if (GetTextRelBase == NULL)
+    {
+      if (libgcc_s_handle == NULL)
+	libgcc_s_handle = dlopen ("libgcc_s.so.1", RTLD_LAZY);
+      GetTextRelBase = (__typeof (GetTextRelBase))
+	dlsym (libgcc_s_handle, "_Unwind_GetTextRelBase");
+    }
+  return GetTextRelBase (ctx);
+}
+
+_Unwind_Ptr __attribute__((visibility ("hidden")))
+_Unwind_GetIPInfo (struct _Unwind_Context *ctx, int *ip)
+{
+  static _Unwind_Ptr (*GetIPInfo) (struct _Unwind_Context *, int *ip);
+
+  if (GetIPInfo == NULL)
+    {
+      if (libgcc_s_handle == NULL)
+	libgcc_s_handle = dlopen ("libgcc_s.so.1", RTLD_LAZY);
+      GetIPInfo = (__typeof (GetIPInfo))
+	dlsym (libgcc_s_handle, "_Unwind_GetIPInfo");
+    }
+  return GetIPInfo (ctx, ip);
+}
+
+void __attribute__((visibility ("hidden")))
+_Unwind_SetIP (struct _Unwind_Context *ctx, _Unwind_Ptr ip)
+{
+  static void (*SetIP) (struct _Unwind_Context *, _Unwind_Ptr ip);
+
+  if (SetIP == NULL)
+    {
+      if (libgcc_s_handle == NULL)
+	libgcc_s_handle = dlopen ("libgcc_s.so.1", RTLD_LAZY);
+      SetIP = (__typeof (SetIP))
+	dlsym (libgcc_s_handle, "_Unwind_SetIP");
+    }
+  SetIP (ctx, ip);
+}
+
+void __attribute__((visibility ("hidden")))
+_Unwind_SetGR (struct _Unwind_Context *ctx, int num, _Unwind_Ptr gr)
+{
+  static void (*SetGR) (struct _Unwind_Context *, int num, _Unwind_Ptr gr);
+
+  if (SetGR == NULL)
+    {
+      if (libgcc_s_handle == NULL)
+	libgcc_s_handle = dlopen ("libgcc_s.so.1", RTLD_LAZY);
+      SetGR = (__typeof (SetGR))
+	dlsym (libgcc_s_handle, "_Unwind_SetGR");
+    }
+  SetGR (ctx, num, gr);
+}
+
+}
+
+#endif
+
 struct alignment_test_struct
 {
   char space;