diff options
| author | Mike Aizatsky <aizatsky@chromium.org> | 2016-04-27 18:02:21 +0000 |
|---|---|---|
| committer | Mike Aizatsky <aizatsky@chromium.org> | 2016-04-27 18:02:21 +0000 |
| commit | 327e73030b57359155c84e3be635e4870c674172 (patch) | |
| tree | c3111d5db6fc9f2eb9a94f025342a3c0db9fb02a /lib | |
| parent | a6a82f392638c9afac77850851e7e8f0f5ddb2a3 (diff) | |
[sanitizers] read/write page fault detection on mac.
Summary: Resubmit of http://reviews.llvm.org/D19495 enabled only on intel.
Subscribers: kubabrecka
Differential Revision: http://reviews.llvm.org/D19561
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267750 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/sanitizer_common/sanitizer_mac.cc | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/sanitizer_common/sanitizer_mac.cc b/lib/sanitizer_common/sanitizer_mac.cc index 356541d23..325bdc9e2 100644 --- a/lib/sanitizer_common/sanitizer_mac.cc +++ b/lib/sanitizer_common/sanitizer_mac.cc @@ -506,7 +506,12 @@ void LogFullErrorReport(const char *buffer) { } SignalContext::WriteFlag SignalContext::GetWriteFlag(void *context) { - return UNKNOWN; // FIXME: implement this. +#if defined(__x86_64__) || defined(__i386__) + ucontext_t *ucontext = static_cast<ucontext_t*>(context); + return ucontext->uc_mcontext->__es.__err & 2 /*T_PF_WRITE*/ ? WRITE : READ; +#else + return UNKNOWN; +#endif } void GetPcSpBp(void *context, uptr *pc, uptr *sp, uptr *bp) { |