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2017-11-20[tsan] Fix sigaction implementation when it's called only to get handlerVitaly Buka
Reviewers: eugenis Subscribers: kubamracek, llvm-commits, krytarowski Differential Revision: https://reviews.llvm.org/D40272 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318707 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-17Enable PDB generation with lld in asan and cfi tests on Windows.Peter Collingbourne
PDB emission now works well enough that we can rely on it for these tests to pass. Differential Revision: https://reviews.llvm.org/D40188 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318546 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-17[libFuzzer] Fix flaky merge.test.Matt Morehouse
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318475 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-16[asan] Properly mark or disable tests that only work with shadow scale of 3Walter Lee
Differential Revision: https://reviews.llvm.org/D39774 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318471 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-16[asan] Port tests to shadow scale of 5Walter Lee
The tests are ported as follows: contiguous_container_crash.cc use-after-delete.cc use-after-free.cc Replace hardwired shadow granularity in CHECK statements with regex. max_redzone.cc Bump max_redzone parameter to 32. memset_test.cc Bump size parameter of __asan_poison_memory_region to 32. scariness_score_test.cc For "far-from-bounds" heap overflow, make sure overflow is more than one shadow granularity away. At large shadow granularity, there is not enough redzone between stack elements to detect far-from-bounds, so fake out that test. Differential Revision: https://reviews.llvm.org/D39773 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318470 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-16[asan] Add lit feature to indicate compiler_rt's shadow scale valueWalter Lee
This will be used to mark tests that require a specific shadow scale. Differential Revision: https://reviews.llvm.org/D39772 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318469 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-16[libFuzzer] Make merge-sigusr.test work on Mac.Matt Morehouse
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318465 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-16[libFuzzer] add more tests for mergeKostya Serebryany
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318453 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-16Implement GetTls() for NetBSDKamil Rytarowski
Summary: Reuse the existing code for FreeBSD that is compatible with NetBSD. Add NetBSD support in tests: tls_race.cc and tls_race2.cc. Sponsored by <The NetBSD Foundation> Reviewers: joerg, dvyukov, vitalybuka, kcc, eugenis Reviewed By: dvyukov Subscribers: srhines, emaste, kubamracek, llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D40105 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318431 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-16[builtins][ARM] re-enable mulsc3_test.c on ArmPeter Smith
The mulsc3_test.c was marked as unsupported due to PR32457, the underlying cause of this PR was fixed in PR28164 so we can remove the unsupported as it is no longer needed. Differential Revision: https://reviews.llvm.org/D40076 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318396 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-16[libFuzzer] disable test/fuzzer/merge-sigusr.test on Mac while investigating ↵Kostya Serebryany
the bot failure git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318376 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-15[libFuzzer] respect max_len during mergeKostya Serebryany
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318302 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-15[scudo] Soft and hard RSS limit checksKostya Kortchinsky
Summary: This implements an opportunistic check for the RSS limit. For ASan, this was implemented thanks to a background thread checking the current RSS vs the set limit every 100ms. This was deemed problematic for Scudo due to potential Android concerns (Zygote as pointed out by Aleksey) as well as the general inconvenience of having a permanent background thread. If a limit (soft or hard) is specified, we will attempt to update the RSS limit status (exceeded or not) every 100ms. This is done in an opportunistic way: if we can update it, we do it, if not we return the current status, mostly because we don't need it to be fully consistent (it's done every 100ms anyway). If the limit is exceeded `allocate` will act as if OOM for a soft limit, or just die for a hard limit. We use the `common_flags()`'s `hard_rss_limit_mb` & `soft_rss_limit_mb` for configuration of the limits. Reviewers: alekseyshl Reviewed By: alekseyshl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D40038 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318301 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-15[XRay][compiler-rt][x86_64] Align the stack before and after calling handlersDean Michael Berris
Summary: This change fixes the XRay trampolines aside from the __xray_CustomEvent trampoline to align the stack to 16-byte boundaries before calling the handler. Before this change we've not been explicitly aligning the stack to 16-byte boundaries, which makes it dangerous when calling handlers that leave the stack in a state that isn't strictly 16-byte aligned after calling the handlers. We add a test that makes sure we can handle these cases appropriately after the changes, and prevents us from regressing the state moving forward. Fixes http://llvm.org/PR35294. Reviewers: pelikan, pcc Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D40004 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318261 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-14Adjust test after r318159Adam Nemet
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318170 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-13[sanitizer] Relax stack check in assert.cc even moreVitaly Buka
assert implementations can be very different git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318089 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-13[tsan] Fix signal chainingVitaly Buka
Summary: Return saved values only if installed sigaction is our wrapper. Reviewers: eugenis, dvyukov Subscribers: llvm-commits, kubamracek Differential Revision: https://reviews.llvm.org/D39935 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318082 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-13[tsan] Deadly signal handler for tsanVitaly Buka
Summary: https://github.com/google/sanitizers/issues/637 Reviewers: eugenis Subscribers: kubamracek, llvm-commits Differential Revision: https://reviews.llvm.org/D39929 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318078 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-13[sanitizer] Relax stack checkVitaly Buka
-NEXT sometimes does not work as LLVMSymbolizer warning can appear there. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318077 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-13[asan] Add CMake hook to override shadow scale in compiler_rtWalter Lee
Allow user to override shadow scale in compiler_rt by passing -DCOMPILER_RT_ASAN_SHADOW_SCALE=n to CMake. Propagate the override shadow scale value via a compiler define to compiler-rt and asan tests. Tests will use the define to partially disable unsupported tests. Set "-mllvm -asan-mapping-scale=<n>" for compiler_rt tests. Differential Revision: https://reviews.llvm.org/D39469 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318038 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-13Allow compiler-rt test targets to work with multi-config CMake generatorsGreg Bedwell
Multi-config CMake generators need lit to be able to resolve paths of artifacts from previous build steps at lit time, rather than expect them to be fully resolved at CMake time as they may contain the build mode. Differential Revision: https://reviews.llvm.org/D38471 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318037 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-12[sanitizer] Simplify stack check in accert.ccVitaly Buka
Somehow on arm bots stack does not include main. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318002 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-12[sanitizer] Try to see test output on armv7Vitaly Buka
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@318001 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-11[msan] Fix signal chainingVitaly Buka
Return internally stored handlers only if handlers is set to wrapper git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317970 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-11[sanitizer] Include stack trace check into signal testsVitaly Buka
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317963 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-11[ubsan] Fix ubsan tests broken by linking as C instead of C++Vitaly Buka
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317958 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-10sanitizer_common: Try looking up symbols with RTLD_DEFAULT if RTLD_NEXT does ↵Peter Collingbourne
not work. If the lookup using RTLD_NEXT failed, the sanitizer runtime library is later in the library search order than the DSO that we are trying to intercept, which means that we cannot intercept this function. We still want the address of the real definition, though, so look it up using RTLD_DEFAULT. Differential Revision: https://reviews.llvm.org/D39779 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317930 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-10Revert "[XRay][darwin] Initial XRay in Darwin Support"Dean Michael Berris
This reverts r317875. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317877 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-10[XRay][darwin] Initial XRay in Darwin SupportDean Michael Berris
Summary: This change implements the changes required in both clang and compiler-rt to allow building XRay-instrumented binaries in Darwin. For now we limit this to x86_64. We also start building the XRay runtime library in compiler-rt for osx. A caveat to this is that we don't have the tests set up and running yet, which we'll do in a set of follow-on changes. This patch uses the monorepo layout for the coordinated change across multiple projects. Reviewers: kubamracek Subscribers: mgorny, cfe-commits, llvm-commits Differential Revision: https://reviews.llvm.org/D39114 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317875 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-10[msan] Deadly signal handler for msanVitaly Buka
Summary: Part of https://github.com/google/sanitizers/issues/637 Reviewers: eugenis, alekseyshl Subscribers: llvm-commits, kubamracek Differential Revision: https://reviews.llvm.org/D39826 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317864 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-10[libFuzzer] trying to make sigusr tests more reliableKostya Serebryany
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317852 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-10[libFuzzer] split a test into two Kostya Serebryany
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317851 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-09[libFuzzer] use pkill instead of killall in a test since the bots don't have ↵Kostya Serebryany
killall git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317840 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-09[libFuzzer] make sure to flush IO when done merging one fileKostya Serebryany
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317835 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-09[libFuzzer] Don't add leaking inputs to corpus.Matt Morehouse
Reviewers: kcc Reviewed By: kcc Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D39850 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317831 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-09[libFuzzer] handle SIGUSR1/SIGUSR2 and try to exit grafully on these signalsKostya Serebryany
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317829 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-09Revert new ThinLTO ASAN test until lit support addedTeresa Johnson
This reverts commit r317723 and r317728. Will be re-added when support for LTO/ThinLTO added to test/asan/lit.cfg. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317823 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-09[libFuzzer] allow merge to resume after being preempted Kostya Serebryany
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317767 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-09[libFuzzer] mechanically simplify a test, NFCKostya Serebryany
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317756 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-09[libFuzzer] fix a test (and hopefully, the bot)Kostya Serebryany
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317749 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-09[libFuzzer] allow user to specify the merge control fileKostya Serebryany
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317747 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-08Correct atexit(3) support in TSan/NetBSDKamil Rytarowski
Summary: The NetBSD specific implementation of cxa_atexit() does not preserve the 2nd argument if dso is equal to NULL. Changes: - Split paths of handling intercepted __cxa_atexit() and atexit(3). This affects all supported Operating Systems. - Add a local stack-like structure to hold the __cxa_atexit() context. atexit(3) is documented in the C standard as calling callback from the earliest to the oldest entry. This path also fixes potential ABI problem of passing an argument to a function from the atexit(3) callback mechanism. - Add new test to ensure LIFO style of atexit(3) callbacks: atexit3.cc Proposal to change the behavior of __cxa_atexit() in NetBSD has been rejected. With the above changes TSan/NetBSD with the current tsan_interceptors.cc can bootstrap into operation. Sponsored by <The NetBSD Foundation> Reviewers: vitalybuka, dvyukov, joerg, kcc, eugenis Reviewed By: dvyukov Subscribers: kubamracek, llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D39619 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317735 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-08[ThinLTO] New test needs to require LTOTeresa Johnson
Fix buildbot failures: http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux/builds/5262/steps/annotate/logs/stdio git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317728 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-08[ThinLTO] Ensure sanitizer passes are runTeresa Johnson
Recommit new test as linux-only. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317723 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-08Revert "[ThinLTO] Ensure sanitizer passes are run"Teresa Johnson
This reverts commit r317715. It failed a Windows buildbot since ThinLTO is presumably not supported, leading to a corrupt file error on the object file: http://lab.llvm.org:8011/builders/sanitizer-windows/builds/19395/steps/run%20check-asan/logs/stdio Will re-commit the new ThinLTO part of the test to a linux only test file. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317717 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-08[ThinLTO] Ensure sanitizer passes are runTeresa Johnson
Summary: Test fix to pass manager for ThinLTO. Depends on D39565. Reviewers: pcc Subscribers: kubamracek, mehdi_amini, llvm-commits, inglorion Differential Revision: https://reviews.llvm.org/D39566 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317715 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-01[fuzzer] Script to detect unbalanced allocation in -trace_malloc outputVitaly Buka
Reviewers: kcc Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D39466 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317119 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-01[scudo] Fix standlone build -lrt requirementKostya Kortchinsky
Summary: The split in D39461 introduced separate C++ flags, but `cxx_flags` needs `-lrt` as well for the standalone build. Reviewers: alekseyshl Reviewed By: alekseyshl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D39497 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317103 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-01[scudo] Implement stricter separation of C vs C++Kostya Kortchinsky
Summary: Initially, Scudo had a monolithic design where both C and C++ functions were living in the same library. This was not necessarily ideal, and with the work on -fsanitize=scudo, it became more apparent that this needed to change. We are splitting the new/delete interceptor in their own C++ library. This allows more flexibility, notably with regard to std::bad_alloc when the work is done. This also allows us to not link new & delete when using pure C. Additionally, we add the UBSan runtimes with Scudo, in order to be able to have a -fsanitize=scudo,undefined in Clang (see work in D39334). The changes in this patch: - split the cxx specific code in the scudo cmake file into a new library; (remove the spurious foreach loop, that was not necessary) - add the UBSan runtimes (both C and C++); - change the test cmake file to allow for specific C & C++ tests; - make C tests pure C, rename their extension accordingly. Reviewers: alekseyshl Reviewed By: alekseyshl Subscribers: srhines, mgorny, llvm-commits Differential Revision: https://reviews.llvm.org/D39461 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317097 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-01[fuzzer] Fix threaded stack printingVitaly Buka
Reviewers: kcc Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D39397 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317071 91177308-0d34-0410-b5e6-96231b3b80d8