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see https://bugzilla.mozilla.org/show_bug.cgi?id=323853
--- ./xpcom/base/nsTraceRefcntImpl.cpp 2004-02-11 07:16:10.000000000 +0000
+++ ./xpcom/base/nsTraceRefcntImpl.cpp 2006-03-13 05:56:48.810241000 +0000
@@ -50,19 +50,6 @@
#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 @@ -484,7 +471,7 @@
#endif /* NS_BUILD_REFCNT_LOGGING */ -nsresult
+NS_COM nsresult
nsTraceRefcntImpl::DumpStatistics(StatisticsType type, FILE* out) { nsresult rv = NS_OK; @@ -561,7 +548,7 @@
return rv; } -void
+NS_COM void
nsTraceRefcntImpl::ResetStatistics() { #ifdef NS_BUILD_REFCNT_LOGGING @@ -850,7 +837,7 @@
#if defined(_WIN32) && defined(_M_IX86) // WIN32 x86 stack walking code #include "nsStackFrameWin.h" -void
+NS_COM void
nsTraceRefcntImpl::WalkTheStack(FILE* aStream) { DumpStackToFile(aStream); @@ -858,9 +845,9 @@
// 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); @@ -960,7 +947,7 @@
#else // unsupported platform. -void
+NS_COM void
nsTraceRefcntImpl::WalkTheStack(FILE* aStream) { fprintf(aStream, "write me, dammit!\n"); --- ./xpcom/base/nsStackFrameUnix.cpp 2004-03-08 07:47:44.000000000 +0000
+++ ./xpcom/base/nsStackFrameUnix.cpp 2006-03-13 05:56:48.866244500 +0000
@@ -82,26 +82,16 @@
#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) { --- ./gc/boehm/os_dep.c 15 Jun 2001 19:29:38 -0000 1.12
+++ ./gc/boehm/os_dep.c 18 Mar 2006 17:55:07 -0000
@@ -2420,42 +2420,38 @@ void GC_save_callers(struct callinfo inf
} info[0].ci_pc = (word) currentTree; info[1].ci_pc = 0; } #endif #endif /* POWERPC && MACOS */ #if defined(SAVE_CALL_CHAIN) && defined(LINUX) -#include <setjmp.h>
-
#include "call_tree.h" typedef struct stack_frame stack_frame; #if defined(__i386) struct stack_frame { stack_frame* next; void* pc; }; static stack_frame* getStackFrame() { - jmp_buf jb;
stack_frame* currentFrame; - setjmp(jb);
- currentFrame = (stack_frame*)(jb[0].__jmpbuf[JB_BP]);
+ currentFrame = (stack_frame*)__builtin_frame_address(0);
currentFrame = currentFrame->next; return currentFrame; } #endif /* __i386 */ static call_tree* find_tree(stack_frame* frame) { /* primordial root of the call tree. */ static call_tree root = { 0, 0, 0, 0, 0 }; long pc = (long)frame->pc; --- ./js/src/jsutil.c 14 Sep 2005 17:30:10 -0000 3.22
+++ ./js/src/jsutil.c 18 Mar 2006 17:55:22 -0000
@@ -57,26 +57,25 @@
#if defined(WIN32) DebugBreak(); #endif #if defined(XP_OS2) asm("int $3"); #endif abort(); } #if defined DEBUG_notme && defined XP_UNIX #define __USE_GNU 1 #include <dlfcn.h> -#include <setjmp.h>
#include <string.h> #include "jshash.h" #include "jsprf.h" JSCallsite js_calltree_root = {0, NULL, NULL, 0, NULL, NULL, NULL, NULL}; static JSCallsite * CallTree(uint32 *bp) { uint32 *bpup, *bpdown, pc; JSCallsite *parent, *site, **csp; Dl_info info; @@ -161,30 +160,27 @@ CallTree(uint32 *bp)
upward: parent = site; bpdown = bp; bp = bpup; } while (bp); return site; } JSCallsite * JS_Backtrace(int skip) { - jmp_buf jb;
uint32 *bp, *bpdown; - setjmp(jb);
-
/* Stack walking code adapted from Kipp's "leaky". */ - bp = (uint32*) jb[0].__jmpbuf[JB_BP];
+ bp = (uint32*) __builtin_frame_address(0);
while (--skip >= 0) { bpdown = (uint32*) *bp++; if (bpdown < bp) break; bp = bpdown; } return CallTree(bp); } #endif /* DEBUG_notme && XP_UNIX */
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