diff options
Diffstat (limited to 'compiler-rt/lib/sanitizer_common/sanitizer_stacktrace.cc')
| -rw-r--r-- | compiler-rt/lib/sanitizer_common/sanitizer_stacktrace.cc | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_stacktrace.cc b/compiler-rt/lib/sanitizer_common/sanitizer_stacktrace.cc index 28ee9600d0a..964c5241fac 100644 --- a/compiler-rt/lib/sanitizer_common/sanitizer_stacktrace.cc +++ b/compiler-rt/lib/sanitizer_common/sanitizer_stacktrace.cc @@ -33,7 +33,12 @@ static uptr patch_pc(uptr pc) { // Cancel Thumb bit. pc = pc & (~1); #endif +#if defined(__powerpc__) || defined(__powerpc64__) + // PCs are always 4 byte aligned. + return pc - 4; +#else return pc - 1; +#endif } static void PrintStackFramePrefix(uptr frame_num, uptr pc) { @@ -138,6 +143,14 @@ void StackTrace::FastUnwindStack(uptr pc, uptr bp, } } +void StackTrace::PopStackFrames(uptr count) { + CHECK(size > count); + size -= count; + for (uptr i = 0; i < size; i++) { + trace[i] = trace[i + count]; + } +} + // On 32-bits we don't compress stack traces. // On 64-bits we compress stack traces: if a given pc differes slightly from // the previous one, we record a 31-bit offset instead of the full pc. |
