diff options
| author | Eric Fiselier <eric@efcs.ca> | 2017-03-04 02:04:45 +0000 |
|---|---|---|
| committer | Eric Fiselier <eric@efcs.ca> | 2017-03-04 02:04:45 +0000 |
| commit | aad059409f93f48058f669d730cb35ad7b84bb69 (patch) | |
| tree | 9ed81b7357634d43cfdd134cb1f915e75de2daac /src/fallback_malloc.h | |
| parent | da7d616fd2870e097eaa85bcec38b97a6d6dbde2 (diff) | |
[libcxxabi] Fix alignment of allocated exceptions in 32 bit builds
Summary:
In 32 bit builds on a 64 bit system `std::malloc` does not return correctly aligned memory. This leads to undefined behavior.
This patch switches to using `posix_memalign` to allocate correctly aligned memory instead.
Reviewers: mclow.lists, danalbert, jroelofs, compnerd
Reviewed By: compnerd
Subscribers: cfe-commits
Differential Revision: https://reviews.llvm.org/D25417
git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@296952 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'src/fallback_malloc.h')
| -rw-r--r-- | src/fallback_malloc.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/fallback_malloc.h b/src/fallback_malloc.h index cb2c843..d6f4714 100644 --- a/src/fallback_malloc.h +++ b/src/fallback_malloc.h @@ -16,11 +16,12 @@ namespace __cxxabiv1 { // Allocate some memory from _somewhere_ -_LIBCXXABI_HIDDEN void * __malloc_with_fallback(size_t size); +_LIBCXXABI_HIDDEN void * __aligned_malloc_with_fallback(size_t size); // Allocate and zero-initialize memory from _somewhere_ _LIBCXXABI_HIDDEN void * __calloc_with_fallback(size_t count, size_t size); +_LIBCXXABI_HIDDEN void __aligned_free_with_fallback(void *ptr); _LIBCXXABI_HIDDEN void __free_with_fallback(void *ptr); } // namespace __cxxabiv1 |