2 Commits

Author	SHA1	Message	Date
Andrey Konovalov	1ba9d9c6ca	hwasan: add -fsanitize=kernel-hwaddress flag ... This patch adds -fsanitize=kernel-hwaddress flag, that essentially enables -hwasan-kernel=1 -hwasan-recover=1 -hwasan-match-all-tag=0xff. Differential Revision: https://reviews.llvm.org/D45046 llvm-svn: 330044	2018-04-13 18:05:21 +00:00
Alex Shlyapnikov	83e7841419	[HWASan] Port HWASan to Linux x86-64 (LLVM) ... Summary: Porting HWASan to Linux x86-64, first of the three patches, LLVM part. The approach is similar to ARM case, trap signal is used to communicate memory tag check failure. int3 instruction is used to generate a signal, access parameters are stored in nop [eax + offset] instruction immediately following the int3 one. One notable difference is that x86-64 has to untag the pointer before use due to the lack of feature comparable to ARM's TBI (Top Byte Ignore). Reviewers: eugenis Subscribers: kristof.beyls, llvm-commits Differential Revision: https://reviews.llvm.org/D44699 llvm-svn: 328342	2018-03-23 17:57:54 +00:00