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| author | Frank Ch. Eigler <fche@elastic.org> | 2008-09-10 17:18:41 -0400 |
|---|---|---|
| committer | Frank Ch. Eigler <fche@elastic.org> | 2008-09-10 17:18:41 -0400 |
| commit | da4c496a55b73e2a768d3b1c6cee44b43144bcc8 (patch) | |
| tree | c072badf8d4161ca91883d0084548a95895dd0b7 /runtime/stack-i386.c | |
| parent | ae8b5b85fe489b400022c339c907806fc6dc55ae (diff) | |
| download | systemtap-steved-da4c496a55b73e2a768d3b1c6cee44b43144bcc8.tar.gz systemtap-steved-da4c496a55b73e2a768d3b1c6cee44b43144bcc8.tar.xz systemtap-steved-da4c496a55b73e2a768d3b1c6cee44b43144bcc8.zip | |
backtrace fix for i386 with neither frame pointers nor dwarf unwinding
Diffstat (limited to 'runtime/stack-i386.c')
| -rw-r--r-- | runtime/stack-i386.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/runtime/stack-i386.c b/runtime/stack-i386.c index ad101889..ed7e2ce1 100644 --- a/runtime/stack-i386.c +++ b/runtime/stack-i386.c @@ -54,9 +54,10 @@ static void __stp_stack_print (struct pt_regs *regs, int verbose, int levels) fp = next_fp; } #else +#ifdef STP_USE_DWARF_UNWINDER struct unwind_frame_info info; arch_unw_init_frame_info(&info, regs); - + while (levels && !arch_unw_user_mode(&info)) { int ret = unwind(&info); dbug_unwind(1, "ret=%d PC=%lx SP=%lx\n", ret, UNW_PC(&info), UNW_SP(&info)); @@ -71,5 +72,8 @@ static void __stp_stack_print (struct pt_regs *regs, int verbose, int levels) _stp_stack_print_fallback(context, UNW_SP(&info), verbose, levels); break; } +#else /* ! STP_USE_DWARF_UNWINDER */ + _stp_stack_print_fallback(context, (unsigned long)®_SP(regs), verbose, levels); #endif /* STP_USE_FRAME_POINTER */ +#endif } |