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Author SHA1 Message Date
Zhiwei Chen dbc641deb9 [sanitizer] Reduce redzone size for small size global objects 
Currently 1 byte global object has a ridiculous 63 bytes redzone.
This patch reduces the redzone size to be less than 32 if the size of global object is less than or equal to half of 32 (the minimal size of redzone).
A 12 bytes object has a 20 bytes redzone, a 20 bytes object has a 44 bytes redzone.

Reviewed By: MaskRay, #sanitizers, vitalybuka

Differential Revision: https://reviews.llvm.org/D102469
 2021-05-19 19:18:50 -07:00
Vitaly Buka 8076c57fd2 [asan] Add clang flag -fsanitize-address-use-odr-indicator 
Reviewers: eugenis, m.ostapenko, ygribov

Subscribers: hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D55157

llvm-svn: 348327
 2018-12-05 01:44:31 +00:00