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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
Evgeniy Stepanov 12817e59de Hardware-assisted AddressSanitizer (clang part). 
Summary:
Driver, frontend and LLVM codegen for HWASan.
A clone of ASan, basically.

Reviewers: kcc, pcc, alekseyshl

Subscribers: srhines, javed.absar, cfe-commits

Differential Revision: https://reviews.llvm.org/D40936

llvm-svn: 320232
 2017-12-09 01:32:07 +00:00
Alexander Potapenko b9b73ef906 [ASan] Initial support for Kernel AddressSanitizer 
This patch adds initial support for the -fsanitize=kernel-address flag to Clang.
Right now it's quite restricted: only out-of-line instrumentation is supported, globals are not instrumented, some GCC kasan flags are not supported.
Using this patch I am able to build and boot the KASan tree with LLVMLinux patches from github.com/ramosian-glider/kasan/tree/kasan_llvmlinux.
To disable KASan instrumentation for a certain function attribute((no_sanitize("kernel-address"))) can be used.

llvm-svn: 240131
 2015-06-19 12:19:07 +00:00
Richard Smith b1b0ab41e7 Use the individual -fsanitize=<...> arguments to control which of the UBSan 
checks to enable. Remove frontend support for -fcatch-undefined-behavior,
-faddress-sanitizer and -fthread-sanitizer now that they don't do anything.

llvm-svn: 167413
 2012-11-05 22:21:05 +00:00
Kostya Serebryany c3333e879f implement __has_feature(address_sanitizer); also use LangOpts.AddressSanitizer instead of CodeGenOpts.AddressSanitizer 
llvm-svn: 145054
 2011-11-22 01:28:36 +00:00