diff options
Diffstat (limited to 'compiler-rt/lib/asan/asan_stack.cc')
| -rw-r--r-- | compiler-rt/lib/asan/asan_stack.cc | 33 |
1 files changed, 19 insertions, 14 deletions
diff --git a/compiler-rt/lib/asan/asan_stack.cc b/compiler-rt/lib/asan/asan_stack.cc index 0bcba419da8..72caf1f8bc8 100644 --- a/compiler-rt/lib/asan/asan_stack.cc +++ b/compiler-rt/lib/asan/asan_stack.cc @@ -31,23 +31,28 @@ u32 GetMallocContextSize() { void __sanitizer::BufferedStackTrace::UnwindImpl( uptr pc, uptr bp, void *context, bool request_fast, u32 max_depth) { using namespace __asan; +#if SANITIZER_WINDOWS + Unwind(max_depth, pc, 0, context, 0, 0, false); +#else + AsanThread *t; size = 0; - if (UNLIKELY(!asan_inited)) return; - - AsanThread *t = GetCurrentThread(); - if (t && !t->isUnwinding() && WillUseFastUnwind(request_fast)) { - uptr top = t->stack_top(); - uptr bottom = t->stack_bottom(); - ScopedUnwinding unwind_scope(t); - if (!SANITIZER_MIPS || IsValidFrame(bp, top, bottom)) { - UnwindFast(pc, bp, top, bottom, max_depth); - return; + if (LIKELY(asan_inited)) { + if ((t = GetCurrentThread()) && !t->isUnwinding()) { + uptr stack_top = t->stack_top(); + uptr stack_bottom = t->stack_bottom(); + ScopedUnwinding unwind_scope(t); + if (!SANITIZER_MIPS || IsValidFrame(bp, stack_top, stack_bottom)) { + if (StackTrace::WillUseFastUnwind(request_fast)) + Unwind(max_depth, pc, bp, nullptr, stack_top, stack_bottom, true); + else + Unwind(max_depth, pc, 0, context, 0, 0, false); + } + } else if (!t && !request_fast) { + /* If GetCurrentThread() has failed, try to do slow unwind anyways. */ + Unwind(max_depth, pc, bp, context, 0, 0, false); } } - -#if SANITIZER_CAN_SLOW_UNWIND - UnwindSlowWithOptionalContext(pc, context, max_depth); -#endif +#endif // SANITIZER_WINDOWS } // ------------------ Interface -------------- {{{1 |
