Index: xpcom/base/nsTraceRefcntImpl.cpp
===================================================================
RCS file: /cvs/mozilla/xpcom/base/nsTraceRefcntImpl.cpp,v
retrieving revision 1.98
diff -p -u -1 -2 -r1.98 nsTraceRefcntImpl.cpp
--- xpcom/base/nsTraceRefcntImpl.cpp	3 Feb 2006 19:35:14 -0000	1.98
+++ xpcom/base/nsTraceRefcntImpl.cpp	6 Feb 2006 20:30:53 -0000
@@ -41,37 +41,24 @@
 #include "nsISupports.h"
 #include "nsVoidArray.h"
 #include "prprf.h"
 #include "prlog.h"
 #include "plstr.h"
 #include <stdlib.h>
 #include "nsCOMPtr.h"
 #include "nsCRT.h"
 #include <math.h>
 
 #if defined(_WIN32)
 #include <windows.h>
-#elif defined(linux) && defined(__GLIBC__) && (defined(__i386) || defined(PPC))
-#include <setjmp.h>
-
-//
-// On glibc 2.1, the Dl_info api defined in <dlfcn.h> is only exposed
-// if __USE_GNU is defined.  I suppose its some kind of standards
-// adherence thing.
-//
-#if (__GLIBC_MINOR__ >= 1) && !defined(__USE_GNU)
-#define __USE_GNU
-#endif
-
-#include <dlfcn.h>
 #endif
 
 #ifdef HAVE_LIBDL
 #include <dlfcn.h>
 #endif
 
 ////////////////////////////////////////////////////////////////////////////////
 
 NS_COM void 
 NS_MeanAndStdDev(double n, double sumOfValues, double sumOfSquaredValues,
                  double *meanResult, double *stdDevResult)
 {
@@ -451,25 +438,25 @@ static PRIntn PR_CALLBACK DumpSerialNumb
                             record->COMPtrCount);
 #else
   fprintf((FILE*) aClosure, "%d (%d references)\n",
                             record->serialNumber,
                             record->refCount);
 #endif
   return HT_ENUMERATE_NEXT;
 }
 
 
 #endif /* NS_BUILD_REFCNT_LOGGING */
 
-nsresult
+NS_COM nsresult
 nsTraceRefcntImpl::DumpStatistics(StatisticsType type, FILE* out)
 {
   nsresult rv = NS_OK;
 #ifdef NS_BUILD_REFCNT_LOGGING
   if (gBloatLog == nsnull || gBloatView == nsnull) {
     return NS_ERROR_FAILURE;
   }
   if (out == nsnull) {
     out = gBloatLog;
   }
 
   LOCK_TRACELOG();
@@ -528,25 +515,25 @@ nsTraceRefcntImpl::DumpStatistics(Statis
   if (gSerialNumbers) {
     fprintf(out, "\n\nSerial Numbers of Leaked Objects:\n");
     PL_HashTableEnumerateEntries(gSerialNumbers, DumpSerialNumbers, out);
   }
 
 done:
   gLogging = wasLogging;
   UNLOCK_TRACELOG();
 #endif
   return rv;
 }
 
-void
+NS_COM void
 nsTraceRefcntImpl::ResetStatistics()
 {
 #ifdef NS_BUILD_REFCNT_LOGGING
   LOCK_TRACELOG();
   if (gBloatView) {
     PL_HashTableDestroy(gBloatView);
     gBloatView = nsnull;
   }
   UNLOCK_TRACELOG();
 #endif
 }
 
@@ -812,43 +799,43 @@ static void InitTraceLog(void)
 
   if (gBloatLog || gRefcntsLog || gAllocLog || gLeakyLog || gCOMPtrLog) {
     gLogging = PR_TRUE;
   }
 
   gTraceLock = PR_NewLock();
 }
 
 #endif
 
 #if defined(_WIN32) && defined(_M_IX86) && !defined(WINCE) // WIN32 x86 stack walking code
 #include "nsStackFrameWin.h"
-void
+NS_COM void
 nsTraceRefcntImpl::WalkTheStack(FILE* aStream)
 {
   DumpStackToFile(aStream);
 }
 
 // WIN32 x86 stack walking code
 // i386 or PPC Linux stackwalking code or Solaris
-#elif (defined(linux) && defined(__GLIBC__) && (defined(__i386) || defined(PPC))) || (defined(__sun) && (defined(__sparc) || defined(sparc) || defined(__i386) || defined(i386)))
+#elif (defined(linux) && defined(__GNUC__) && (defined(__i386) || defined(PPC))) || (defined(__sun) && (defined(__sparc) || defined(sparc) || defined(__i386) || defined(i386)))
 #include "nsStackFrameUnix.h"
-void
+NS_COM void
 nsTraceRefcntImpl::WalkTheStack(FILE* aStream)
 {
   DumpStackToFile(aStream);
 }
 
 #else // unsupported platform.
 
-void
+NS_COM void
 nsTraceRefcntImpl::WalkTheStack(FILE* aStream)
 {
 	fprintf(aStream, "write me, dammit!\n");
 }
 
 #endif
 
 //----------------------------------------------------------------------
 
 // This thing is exported by libstdc++
 // Yes, this is a gcc only hack
 #if defined(MOZ_DEMANGLE_SYMBOLS)
Index: xpcom/base/nsStackFrameUnix.cpp
===================================================================
RCS file: /cvs/mozilla/xpcom/base/nsStackFrameUnix.cpp,v
retrieving revision 1.14
diff -p -u -1 -2 -r1.14 nsStackFrameUnix.cpp
--- xpcom/base/nsStackFrameUnix.cpp	3 Feb 2006 19:35:14 -0000	1.14
+++ xpcom/base/nsStackFrameUnix.cpp	6 Feb 2006 20:28:06 -0000
@@ -74,43 +74,33 @@ void DemangleSymbol(const char * aSymbol
     /* See demangle.h in the gcc source for the voodoo */
     char * demangled = abi::__cxa_demangle(aSymbol,0,0,0);
     
     if (demangled)
     {
         strncpy(aBuffer,demangled,aBufLen);
         free(demangled);
     }
 #endif // MOZ_DEMANGLE_SYMBOLS
 }
 
 
-#if defined(linux) && defined(__GLIBC__) && (defined(__i386) || defined(PPC)) // i386 or PPC Linux stackwalking code
+#if defined(linux) && defined(__GNUC__) && (defined(__i386) || defined(PPC)) // i386 or PPC Linux stackwalking code
 
-#include <setjmp.h>
-//
 
 void DumpStackToFile(FILE* aStream)
 {
-  jmp_buf jb;
-  setjmp(jb);
-
   // Stack walking code courtesy Kipp's "leaky".
 
-  // Get the frame pointer out of the jmp_buf
-  void **bp = (void**)
-#if defined(__i386) 
-    (jb[0].__jmpbuf[JB_BP]);
-#elif defined(PPC)
-    (jb[0].__jmpbuf[JB_GPR1]);
-#endif
+  // Get the frame pointer
+  void **bp = (void**) __builtin_frame_address(0);
 
   int skip = 2;
   for ( ; (void**)*bp > bp; bp = (void**)*bp) {
     void *pc = *(bp+1);
     if (--skip <= 0) {
       Dl_info info;
       int ok = dladdr(pc, &info);
       if (!ok) {
         fprintf(aStream, "UNKNOWN %p\n", pc);
         continue;
       }