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| author | Mark Wielaard <mjw@redhat.com> | 2009-02-20 14:56:38 +0100 |
|---|---|---|
| committer | Mark Wielaard <mjw@redhat.com> | 2009-02-20 14:56:38 +0100 |
| commit | 02615365a92ca2570c1f96abc8a97674aa2ccae1 (patch) | |
| tree | ebedfd91a0f6d299b39e84295e091e12c0767dc8 /runtime/stack-i386.c | |
| parent | c3bad3042df505a3470f1e20b09822a9df1d4761 (diff) | |
| parent | adc67597f327cd43d58b1d0cb740dab14a75a058 (diff) | |
| download | systemtap-steved-02615365a92ca2570c1f96abc8a97674aa2ccae1.tar.gz systemtap-steved-02615365a92ca2570c1f96abc8a97674aa2ccae1.tar.xz systemtap-steved-02615365a92ca2570c1f96abc8a97674aa2ccae1.zip | |
Merge branch 'master' into pr6866
Conflicts:
ChangeLog: Removed
runtime/ChangeLog: Removed
runtime/sym.c: Merged
runtime/task_finder.c: Merged
tapset/ChangeLog: Removed
testsuite/ChangeLog: Removed
Diffstat (limited to 'runtime/stack-i386.c')
| -rw-r--r-- | runtime/stack-i386.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/runtime/stack-i386.c b/runtime/stack-i386.c index ed7e2ce1..206801d8 100644 --- a/runtime/stack-i386.c +++ b/runtime/stack-i386.c @@ -14,10 +14,11 @@ static int _stp_valid_stack_ptr(unsigned long context, unsigned long p) } /* DWARF unwinder failed. Just dump intereting addresses on kernel stack. */ -static void _stp_stack_print_fallback(unsigned long context, unsigned long stack, int verbose, int levels) +#if ! (defined(CONFIG_STACKTRACE) && LINUX_VERSION_CODE > KERNEL_VERSION(2,6,26)) +static void _stp_stack_print_fallback(unsigned long stack, int verbose, int levels) { unsigned long addr; - while (levels && _stp_valid_stack_ptr(context, stack)) { + while (levels && stack & (THREAD_SIZE-1)) { if (unlikely(_stp_read_address(addr, (unsigned long *)stack, KERNEL_DS))) { /* cannot access stack. give up. */ return; @@ -27,6 +28,7 @@ static void _stp_stack_print_fallback(unsigned long context, unsigned long stack stack++; } } +#endif static void __stp_stack_print (struct pt_regs *regs, int verbose, int levels) { @@ -69,11 +71,11 @@ static void __stp_stack_print (struct pt_regs *regs, int verbose, int levels) /* If an error happened or we hit a kretprobe trampoline, use fallback backtrace */ /* FIXME: is there a way to unwind across kretprobe trampolines? */ if (ret < 0 || (ret > 0 && UNW_PC(&info) == _stp_kretprobe_trampoline)) - _stp_stack_print_fallback(context, UNW_SP(&info), verbose, levels); + _stp_stack_print_fallback(UNW_SP(&info), verbose, levels); break; } #else /* ! STP_USE_DWARF_UNWINDER */ - _stp_stack_print_fallback(context, (unsigned long)®_SP(regs), verbose, levels); + _stp_stack_print_fallback((unsigned long)®_SP(regs), verbose, levels); #endif /* STP_USE_FRAME_POINTER */ #endif } |