diff options
| author | Derek Bruening <bruening@google.com> | 2016-03-25 19:33:45 +0000 |
|---|---|---|
| committer | Derek Bruening <bruening@google.com> | 2016-03-25 19:33:45 +0000 |
| commit | 8cfa5e303179a20188285aaed59ca9c483a35cc3 (patch) | |
| tree | e5514ff259ab4fb58d0f25fb45c6aa21a23ad0a4 /lib/msan/msan_interceptors.cc | |
| parent | 088aa1a480da4b5ffd564739db3f463013646854 (diff) | |
[sanitizer] Add memset, memmove, and memcpy to the common interceptors
Summary:
Currently, sanitizer_common_interceptors.inc has an implicit, undocumented
assumption that the sanitizer including it has previously declared
interceptors for memset and memmove. Since the memset, memmove, and memcpy
routines require interception by many sanitizers, we add them to the
set of common interceptions, both to address the undocumented assumption
and to speed future tool development. They are intercepted under a new
flag intercept_intrin.
The tsan interceptors are removed in favor of the new common versions. The
asan and msan interceptors for these are more complex (they incur extra
interception steps and their function bodies are exposed to the compiler)
so they opt out of the common versions and keep their own.
Reviewers: vitalybuka
Subscribers: zhaoqin, llvm-commits, kcc
Differential Revision: http://reviews.llvm.org/D18465
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@264451 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/msan/msan_interceptors.cc')
| -rw-r--r-- | lib/msan/msan_interceptors.cc | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/msan/msan_interceptors.cc b/lib/msan/msan_interceptors.cc index c961fdf45..6602cf8f0 100644 --- a/lib/msan/msan_interceptors.cc +++ b/lib/msan/msan_interceptors.cc @@ -1436,6 +1436,11 @@ int OnExit() { *begin = *end = 0; \ } +#include "sanitizer_common/sanitizer_platform_interceptors.h" +// Msan needs custom handling of these: +#undef SANITIZER_INTERCEPT_MEMSET +#undef SANITIZER_INTERCEPT_MEMMOVE +#undef SANITIZER_INTERCEPT_MEMCPY #include "sanitizer_common/sanitizer_common_interceptors.inc" #define COMMON_SYSCALL_PRE_READ_RANGE(p, s) CHECK_UNPOISONED(p, s) |