[Sanitizer][Darwin] Add interceptor for malloc_zone_from_ptr #152
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Ensure that malloc_default_zone and malloc_zone_from_ptr return the sanitizer-installed malloc zone even when MallocStackLogging (MSL) is requested. This prevents crashes in certain situations. Note that the sanitizers and MSL cannot be used together. If both are enabled, MSL functionality is essentially deactivated since it only hooks the default allocator which is replaced by a custom sanitizer allocator. rdar://53686175 Reviewed By: kubamracek Differential Revision: https://reviews.llvm.org/D65990 llvm-svn: 368492 (cherry picked from commit 5ef4b19)
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@swift-ci Please test |
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Ensure that malloc_default_zone and malloc_zone_from_ptr return the
sanitizer-installed malloc zone even when MallocStackLogging (MSL) is
requested. This prevents crashes in certain situations. Note that the
sanitizers and MSL cannot be used together. If both are enabled, MSL
functionality is essentially deactivated since it only hooks the default
allocator which is replaced by a custom sanitizer allocator.
rdar://53686175
Reviewed By: kubamracek
Differential Revision: https://reviews.llvm.org/D65990
llvm-svn: 368492
(cherry picked from commit 5ef4b19)