Julian Lettner 99c9d7bd63 Reland "[ASan] Do not misrepresent high value address dereferences as null dereferences" ... Updated: Removed offending TODO comment. Dereferences with addresses above the 48-bit hardware addressable range produce "invalid instruction" (instead of "invalid access") hardware exceptions (there is no hardware address decoding logic for those bits), and the address provided by this exception is the address of the instruction (not the faulting address). The kernel maps the "invalid instruction" to SEGV, but fails to provide the real fault address. Because of this ASan lies and says that those cases are null dereferences. This downgrades the severity of a found bug in terms of security. In the ASan signal handler, we can not provide the real faulting address, but at least we can try not to lie. rdar://50366151 Reviewed By: vitalybuka Differential Revision: https://reviews.llvm.org/D68676 > llvm-svn: 374265 llvm-svn: 374384		2019-10-10 17:19:58 +00:00
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TestCases	Reland "[ASan] Do not misrepresent high value address dereferences as null dereferences"	2019-10-10 17:19:58 +00:00
Unit	Add support for FreeBSD's LD_32_LIBRARY_PATH	2019-08-10 19:07:38 +00:00
CMakeLists.txt	[CMake] Fix the value of `config.target_cflags` for non-macOS Apple platforms. Attempt #3.	2019-10-01 23:08:18 +00:00
lit.cfg.py	Enable LSan for NetBSD/i386 in test/asan/lit.cfg.py	2019-09-08 23:53:36 +00:00
lit.site.cfg.py.in	[compiler-rt] Rename lit.*.cfg.* -> lit.*.cfg.py.*	2019-06-27 20:56:04 +00:00