Fix warnings in unwind-dw2.c

[Andreas Jaeger <aj at suse dot de>]

I needed the appended patch to compile unwind-dw2.c without warnings.

Bootstrapped/ regtested on x86_64-linux-gnu and bootstrapped
i686-linux-gnu.

Committed as obvious,
Andreas

2003-11-01  Andreas Jaeger  <aj@suse.de>

	* unwind-dw2.c (_Unwind_FindEnclosingFunction): Constify variable.
	(uw_frame_state_for): Constify variables.
	(extract_cie_info): Constify first argument.

============================================================
Index: gcc/unwind-dw2.c
--- gcc/unwind-dw2.c	28 Oct 2003 03:47:36 -0000	1.38
+++ gcc/unwind-dw2.c	1 Nov 2003 06:50:23 -0000
@@ -290,7 +290,7 @@ void *
 _Unwind_FindEnclosingFunction (void *pc)
 {
   struct dwarf_eh_bases bases;
-  struct dwarf_fde *fde = _Unwind_Find_FDE (pc-1, &bases);
+  const struct dwarf_fde *fde = _Unwind_Find_FDE (pc-1, &bases);
   if (fde)
     return bases.func;
   else
@@ -316,7 +316,7 @@ _Unwind_GetTextRelBase (struct _Unwind_C
    or NULL if we encountered an undecipherable augmentation.  */
 
 static const unsigned char *
-extract_cie_info (struct dwarf_cie *cie, struct _Unwind_Context *context,
+extract_cie_info (const struct dwarf_cie *cie, struct _Unwind_Context *context,
 		  _Unwind_FrameState *fs)
 {
   const unsigned char *aug = cie->augmentation;
@@ -1001,8 +1001,8 @@ execute_cfa_program (const unsigned char
 static _Unwind_Reason_Code
 uw_frame_state_for (struct _Unwind_Context *context, _Unwind_FrameState *fs)
 {
-  struct dwarf_fde *fde;
-  struct dwarf_cie *cie;
+  const struct dwarf_fde *fde;
+  const struct dwarf_cie *cie;
   const unsigned char *aug, *insn, *end;
 
   memset (fs, 0, sizeof (*fs));

-- 
 Andreas Jaeger, aj@suse.de, http://www.suse.de/~aj
  SuSE Linux AG, Deutschherrnstr. 15-19, 90429 Nürnberg, Germany
   GPG fingerprint = 93A3 365E CE47 B889 DF7F  FED1 389A 563C C272 A126

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