diff options
author | Alexander Potapenko <glider@google.com> | 2017-05-05 09:02:28 +0000 |
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committer | Alexander Potapenko <glider@google.com> | 2017-05-05 09:02:28 +0000 |
commit | 4ff00356cf47a180215cf673c33228b79c5a777a (patch) | |
tree | 96e1eacc6975555fcb1b26ed6dd3d34625d7bdbb /lib/ubsan/ubsan_diag_standalone.cc | |
parent | f8e7a418d567bfbabafbff41c9e52a8386dd1160 (diff) |
[ubsan] Implement __sanitizer_print_stack_trace for standalone UBSan runtime.
Patch by Max Moroz, reviewed at https://reviews.llvm.org/D32542
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@302218 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/ubsan/ubsan_diag_standalone.cc')
-rw-r--r-- | lib/ubsan/ubsan_diag_standalone.cc | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/lib/ubsan/ubsan_diag_standalone.cc b/lib/ubsan/ubsan_diag_standalone.cc new file mode 100644 index 000000000..df8ed5fcd --- /dev/null +++ b/lib/ubsan/ubsan_diag_standalone.cc @@ -0,0 +1,37 @@ +//===-- ubsan_diag_standalone.cc ------------------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// Diagnostic reporting for the standalone UBSan runtime. +// +//===----------------------------------------------------------------------===// + +#include "ubsan_platform.h" +#if CAN_SANITIZE_UB +#include "ubsan_diag.h" + +using namespace __ubsan; + +extern "C" { +SANITIZER_INTERFACE_ATTRIBUTE +void __sanitizer_print_stack_trace() { + uptr top = 0; + uptr bottom = 0; + bool request_fast_unwind = common_flags()->fast_unwind_on_fatal; + if (request_fast_unwind) + __sanitizer::GetThreadStackTopAndBottom(false, &top, &bottom); + + GET_REPORT_OPTIONS(false); + BufferedStackTrace stack; + stack.Unwind(kStackTraceMax, Opts.pc, Opts.bp, nullptr, top, bottom, + request_fast_unwind); + stack.Print(); +} +} // extern "C" + +#endif // CAN_SANITIZE_UB |