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| author | Vibhav Pant <vibhavp@gmail.com> | 2022-12-18 20:25:55 +0530 |
|---|---|---|
| committer | Vibhav Pant <vibhavp@gmail.com> | 2022-12-18 20:25:55 +0530 |
| commit | 8043ba186dc9d296624d975715938bc4341cc94d (patch) | |
| tree | cb122e8fc1173f6e94fb87056b14affb33c3fb22 | |
| parent | b9495c3713789df6af775ae789dbcd2145532f01 (diff) | |
| download | emacs-feature/asan-gc-poisoning.tar.gz | |
Avoid build failure when building without -fsanitize=address.feature/asan-gc-poisoning
* src/lisp.h (UNALIGNED_LOAD_SIZE): Only use the sanitizer version of
the macro when USE_SANITIZER_UNALIGNED_LOAD is defined, avoiding link
errors when building without -fsanitize=address.
| -rw-r--r-- | src/lisp.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/lisp.h b/src/lisp.h index f466d4b0da5..be511a0eb9c 100644 --- a/src/lisp.h +++ b/src/lisp.h @@ -5296,8 +5296,12 @@ __lsan_ignore_object (void const *p) } #endif +/* If built with USE_SANITIZER_UNALIGNED_LOAD defined, use compiler + provided ASan functions to perform unaligned loads, allowing ASan + to catch bugs which it might otherwise miss. */ #if defined HAVE_SANITIZER_COMMON_INTERFACE_DEFS_H \ - && defined ADDRESS_SANITIZER + && defined ADDRESS_SANITIZER \ + && defined USE_SANITIZER_UNALIGNED_LOAD # include <sanitizer/common_interface_defs.h> # if (SIZE_MAX == UINT64_MAX) # define UNALIGNED_LOAD_SIZE(a, i) \ |