Roman Lebedev 1d0c7f563c [compiler-rt][UBSan] silence_unsigned_overflow: do *NOT* ignore *fatal* unsigned overflows ... Summary: D48660 / rL335762 added a `silence_unsigned_overflow` env flag for [[ https://github.com/google/oss-fuzz/pull/1717 | oss-fuzz needs ]], that allows to silence the reports from unsigned overflows. It makes sense, it is there because `-fsanitize=integer` sanitizer is not enabled on oss-fuzz, so this allows to still use it as an interestingness signal, without getting the actual reports. However there is a slight problem here. All types of unsigned overflows are ignored. Even if `-fno-sanitize-recover=unsigned` was used (which means the program will die after the report) there will still be no report, the program will just silently die. At the moment there are just two projects on oss-fuzz that care: * [[ 8eeffa627f/projects/llvm_libcxx/build.sh (L18-L20) | libc++ ]] * [[ 8eeffa627f/projects/librawspeed/build.sh | RawSpeed ]] (me) I suppose this could be overridden there ^, but i really don't think this is intended behavior in any case.. Reviewers: kcc, Dor1s, #sanitizers, filcab, vsk, kubamracek Reviewed By: Dor1s Subscribers: dberris, mclow.lists, llvm-commits Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D54771 llvm-svn: 347415		2018-11-21 20:35:43 +00:00
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TestCases	[compiler-rt][UBSan] silence_unsigned_overflow: do *NOT* ignore *fatal* unsigned overflows	2018-11-21 20:35:43 +00:00
CMakeLists.txt	[UBSan] Fix typo in CMake conditional that checked if the architecture	2018-09-19 15:27:00 +00:00
lit.common.cfg	[UBSan] Add CMake and lit support for configuring and running UBSan	2018-09-03 10:30:10 +00:00
lit.site.cfg.in	[UBSan] Add CMake and lit support for configuring and running UBSan	2018-09-03 10:30:10 +00:00