diff options
| author | Vitaly Buka <vitalybuka@google.com> | 2017-11-01 03:02:59 +0000 |
|---|---|---|
| committer | Vitaly Buka <vitalybuka@google.com> | 2017-11-01 03:02:59 +0000 |
| commit | e8c4cd327a7e9d9f3d9bac156f887d5664384d63 (patch) | |
| tree | 76f3412f7b573bb95d15c8184b70599b5f2549ed /lib/fuzzer/FuzzerLoop.cpp | |
| parent | b3c355d3c87d2ea131fd71836d848fe5aa89d20d (diff) | |
[fuzzer] Fix threaded stack printing
Reviewers: kcc
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D39397
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317071 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/fuzzer/FuzzerLoop.cpp')
| -rw-r--r-- | lib/fuzzer/FuzzerLoop.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/fuzzer/FuzzerLoop.cpp b/lib/fuzzer/FuzzerLoop.cpp index d3ac4ce7e..9bea05f18 100644 --- a/lib/fuzzer/FuzzerLoop.cpp +++ b/lib/fuzzer/FuzzerLoop.cpp @@ -19,6 +19,7 @@ #include <algorithm> #include <cstring> #include <memory> +#include <mutex> #include <set> #if defined(__has_include) @@ -73,11 +74,14 @@ struct MallocFreeTracer { static MallocFreeTracer AllocTracer; +static std::mutex MallocFreeStackMutex; + ATTRIBUTE_NO_SANITIZE_MEMORY void MallocHook(const volatile void *ptr, size_t size) { size_t N = AllocTracer.Mallocs++; F->HandleMalloc(size); if (int TraceLevel = AllocTracer.TraceLevel) { + std::lock_guard<std::mutex> Lock(MallocFreeStackMutex); Printf("MALLOC[%zd] %p %zd\n", N, ptr, size); if (TraceLevel >= 2 && EF) EF->__sanitizer_print_stack_trace(); @@ -88,6 +92,7 @@ ATTRIBUTE_NO_SANITIZE_MEMORY void FreeHook(const volatile void *ptr) { size_t N = AllocTracer.Frees++; if (int TraceLevel = AllocTracer.TraceLevel) { + std::lock_guard<std::mutex> Lock(MallocFreeStackMutex); Printf("FREE[%zd] %p\n", N, ptr); if (TraceLevel >= 2 && EF) EF->__sanitizer_print_stack_trace(); |