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2018-07-10[compiler-rt] Get rid of "%T" expansionsFilipe Cabecinhas
Summary: Original patch by Kuba Mracek The %T lit expansion expands to a common directory shared between all the tests in the same directory, which is unexpected and unintuitive, and more importantly, it's been a source of subtle race conditions and flaky tests. In https://reviews.llvm.org/D35396, it was agreed that it would be best to simply ban %T and only keep %t, which is unique to each test. When a test needs a temporary directory, it can just create one using mkdir %t. This patch removes %T in compiler-rt. Differential Revision: https://reviews.llvm.org/D48618 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336661 91177308-0d34-0410-b5e6-96231b3b80d8
2018-07-06[MSan] Add functions to enable/disable interceptor checks.Matt Morehouse
Summary: The motivation for this change is to make libFuzzer+MSan possible without instrumenting libFuzzer. See https://github.com/google/sanitizers/issues/958. Reviewers: eugenis Reviewed By: eugenis Subscribers: llvm-commits, kcc Differential Revision: https://reviews.llvm.org/D48890 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336447 91177308-0d34-0410-b5e6-96231b3b80d8
2018-06-11[sanitizer] Add fgets, fputs and puts into sanitizer_commonPeter Wu
Summary: Add fgets, fputs and puts to sanitizer_common. This adds ASAN coverage for these functions, extends MSAN support from fgets to fputs/puts and extends TSAN support from puts to fputs. Fixes: https://github.com/google/sanitizers/issues/952 Reviewed By: vitalybuka Differential Revision: https://reviews.llvm.org/D46545 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334450 91177308-0d34-0410-b5e6-96231b3b80d8
2018-06-11[Sanitizers] Move allocator_returns_null.cc test to common.Alex Shlyapnikov
Summary: Add allocator_returns_null.cc test to sanitizer_common and remove all sanitizer-specific ones except: - HWASan is not covered by sanitizer_common - TSan allocator does not have comprehensive error reporting yet Reviewers: vitalybuka Subscribers: kubamracek, delcypher, #sanitizers, llvm-commits Differential Revision: https://reviews.llvm.org/D47971 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334433 91177308-0d34-0410-b5e6-96231b3b80d8
2018-06-11[Sanitizers] Move pvalloc overflow tests to common.Alex Shlyapnikov
Summary: Now all sanitizers with improved allocator error reporting are covered by these common tests. Also, add pvalloc-specific checks to LSan. HWASan is not covered by sanitizer_common, hence its own pvalloc and other allocator tests. Reviewers: vitalybuka Subscribers: srhines, kubamracek, delcypher, #sanitizers, llvm-commits Differential Revision: https://reviews.llvm.org/D47970 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334424 91177308-0d34-0410-b5e6-96231b3b80d8
2018-06-09[MSan] Switch to common aligned allocs tests.Alex Shlyapnikov
Summary: Switch to aligned_alloc and posix_memalign tests in sanitizer_common and delete the MSan-specific ones. Reviewers: vitalybuka Subscribers: srhines, kubamracek, delcypher, #sanitizers, llvm-commits Differential Revision: https://reviews.llvm.org/D47968 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334340 91177308-0d34-0410-b5e6-96231b3b80d8
2018-06-08[MSan] Report proper error on allocator failures instead of CHECK(0)-ingAlex Shlyapnikov
Summary: Following up on and complementing D44404. Currently many allocator specific errors (OOM, for example) are reported as a text message and CHECK(0) termination, not stack, no details, not too helpful nor informative. To improve the situation, detailed and structured errors were defined and reported under the appropriate conditions. Reviewers: eugenis Subscribers: srhines, delcypher, #sanitizers, llvm-commits Differential Revision: https://reviews.llvm.org/D47793 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334338 91177308-0d34-0410-b5e6-96231b3b80d8
2018-05-25[MemorySanitizer] fix mmap test for oses not implementing MAP_NORESERVE flagDavid Carlier
Reviewers: krytarowski, eugenis Reviewed By: eugenis Differential Revision: https://review.llvm.org/D47146 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@333306 91177308-0d34-0410-b5e6-96231b3b80d8
2018-05-18[msan] Don't check divisor shadow in fdiv.Evgeniy Stepanov
Summary: Floating point division by zero or even undef does not have undefined behavior and may occur due to optimizations. Fixes https://bugs.llvm.org/show_bug.cgi?id=37523. Reviewers: kcc Subscribers: hiraditya, llvm-commits Differential Revision: https://reviews.llvm.org/D47085 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@332761 91177308-0d34-0410-b5e6-96231b3b80d8
2018-03-21[PowerPC] Disable failing dynamic tls test casesNemanja Ivanovic
Due to recent kernel upgrades, these test case fail on PowerPC buildbots. This is a known problem on affected kernels. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@328091 91177308-0d34-0410-b5e6-96231b3b80d8
2018-03-15MSan, FreeBSD few tests fixesVitaly Buka
Summary: pthread_getattr_np_deadlock support pthread_getname_np unsupported Reviewers: krytarowski, vitalybuka Reviewed By: vitalybuka Subscribers: eugenis, srhines, krytarowski, llvm-commits, #sanitizers Differential Revision: https://reviews.llvm.org/D44085 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@327678 91177308-0d34-0410-b5e6-96231b3b80d8
2018-03-07[sanitizer] Add interceptors for wcsxfrm, wcsxfrm_lVitaly Buka
Patch by Oliver Chang Reviewers: vitalybuka Reviewed By: vitalybuka Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D44133 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@326852 91177308-0d34-0410-b5e6-96231b3b80d8
2018-03-03Adding Msan support to FreeBSDKamil Rytarowski
Summary: Enabling the memory sanitizer support for FreeBSD, most of unit tests are compatible. - Adding fstat and stressor_r interceptors. - Updating the struct link_map access since most likely the struct Obj_Entry had been updated since. - Disabling few unit tests until further work is needed (or we can assume it can work in real world code). Patch by: David CARLIER Reviewers: vitalybuka, krytarowski Reviewed By: vitalybuka Subscribers: eugenis, dim, srhines, emaste, kubamracek, mgorny, fedor.sergeev, hintonda, llvm-commits, #sanitizers Differential Revision: https://reviews.llvm.org/D43080 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@326644 91177308-0d34-0410-b5e6-96231b3b80d8
2018-02-26[MSan] Print current stack on CHECK violationAlex Shlyapnikov
Summary: Print current stack on CHECK violation to aid debugging and match other sanitizers functionality. Reviewers: eugenis Subscribers: delcypher, llvm-commits, #sanitizers Differential Revision: https://reviews.llvm.org/D43692 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@326105 91177308-0d34-0410-b5e6-96231b3b80d8
2018-02-21Fix racy msan testMaxim Kuvyrkov
Summary: Child thread may finish before pthread_setname_np() and/or pthread_getname_np() had a chance to run, which causes these functions to fail with ENOENT (meaning /proc/self/task/[tid]/comm doesn't exist). Fix by stalling child thread on a mutex. Reviewers: eugenis Reviewed By: eugenis Subscribers: llvm-commits, #sanitizers Differential Revision: https://reviews.llvm.org/D43548 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@325703 91177308-0d34-0410-b5e6-96231b3b80d8
2018-02-10Mark the textdomain.cc test as unsupported on BSDsKamil Rytarowski
textdomain is a part of -lintl on BSDs. In GLIBC it's in libc. We assume that -lintl will need to be rebuilt with sanitizers in order to sanitize programs using its features. This is a proper continuation of D41013. The original patch has been reverted (adding -lintl). git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@324810 91177308-0d34-0410-b5e6-96231b3b80d8
2018-01-30[sanitizer] Add interceptors for readlinkat, name_to_handle_at, ↵Vitaly Buka
open_by_handle_at Summary: Also move existing readlink msan interceptor to sanitizer_common. Fixes google/sanitizers#908 Patch by Oliver Chang Reviewers: vitalybuka, eugenis Reviewed By: vitalybuka Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D42630 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@323825 91177308-0d34-0410-b5e6-96231b3b80d8
2018-01-10[MSan] Enable use-after-dtor instrumentation by default.Matt Morehouse
Summary: Enable the compile-time flag -fsanitize-memory-use-after-dtor by default. Note that the run-time option MSAN_OPTIONS=poison_in_dtor=1 still needs to be enabled for destructors to be poisoned. Reviewers: eugenis, vitalybuka, kcc Reviewed By: eugenis, vitalybuka Subscribers: cfe-commits, llvm-commits Differential Revision: https://reviews.llvm.org/D37860 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@322221 91177308-0d34-0410-b5e6-96231b3b80d8
2018-01-03[msan] Intercept sendmmsg, recvmmsg.Evgeniy Stepanov
Summary: Extend the sendmsg test to cover all recv*. Reviewers: vitalybuka Subscribers: llvm-commits, kubamracek Differential Revision: https://reviews.llvm.org/D41620 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@321774 91177308-0d34-0410-b5e6-96231b3b80d8
2018-01-03Add MSan interceptor for fstat(2)Kamil Rytarowski
Summary: Add new MSan interceptor that corrects NetBSD's specific handling of fstat(2). NetBSD renames the call to __fstat50. Add new test: test/msan/fstat.cc Sponsored by <The NetBSD Foundation> Reviewers: joerg, eugenis, vitalybuka Reviewed By: vitalybuka Subscribers: llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D41637 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@321765 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-28[msan] Intercept pthread_getname_np.Evgeniy Stepanov
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@321544 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-12[msan] LIT: Add lld testing configRoman Lebedev
Summary: A follow-up for D39508, with memory sanitizer changes. Reviewers: eugenis, vitalybuka Reviewed By: eugenis Subscribers: mgorny, mehdi_amini, kcc, #sanitizers, llvm-commits Tags: #sanitizers, #lld Differential Revision: https://reviews.llvm.org/D40768 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320514 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-12[CMake] Support runtimes and monorepo layouts when looking for libcxxPetr Hosek
This also slightly refactors the code that's checking the directory presence which allows eliminating one unnecessary variable. Differential Revision: https://reviews.llvm.org/D40637 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320446 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-09Update sanitizer tests for C++14 default in ClangTim Northover
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320251 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-09Revert change in test/msan/textdomain.cc for NetBSDKamil Rytarowski
SVN r. 320226 This breaks Linux. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320236 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-09Fix test/msan/iconv.cc on NetBSDKamil Rytarowski
Summary: NetBSD still uses the old POSIX iconv(3) signature with the 2nd const argument. Sponsored by <The NetBSD Foundation> Reviewers: joerg, eugenis, vitalybuka Reviewed By: vitalybuka Subscribers: llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D41017 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320228 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-09Fix test/msan/textdomain.cc on NetBSDKamil Rytarowski
Summary: This tests must be linked with -lintl for the gettext(3) features. Sponsored by <The NetBSD Foundation> Reviewers: joerg, eugenis, vitalybuka Reviewed By: vitalybuka Subscribers: llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D41013 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320226 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-09Disable test/msan/tsearch.cc on NetBSDKamil Rytarowski
Summary: This test uses GNU-specific extension to libc: tdestroy() and as-is is not compatible with NetBSD. Sponsored by <The NetBSD Foundation> Reviewers: joerg, eugenis, vitalybuka Reviewed By: vitalybuka Subscribers: llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D41011 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320225 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-09Disable test/msan/pvalloc.cc on NetBSDKamil Rytarowski
Summary: The pvalloc(3) function is a non-standard extension missing on NetBSD. Sponsored by <The NetBSD Foundation> Reviewers: joerg, eugenis, vitalybuka Reviewed By: vitalybuka Subscribers: llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D41014 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320224 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-09Fix test/msan/ifaddrs.cc for NetBSDKamil Rytarowski
Summary: NetBSD requires to include <sys/socket.h> for struct sockaddr. Sponsored by <The NetBSD Foundation> Reviewers: joerg, eugenis, vitalybuka Reviewed By: vitalybuka Subscribers: llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D41015 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320223 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-09Disable test/msan/ftime.cc on NetBSDKamil Rytarowski
Summary: ftime(3) has been removed from libc/NetBSD. Sponsored by <The NetBSD Foundation> Reviewers: joerg, eugenis, vitalybuka Reviewed By: vitalybuka Subscribers: llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D41018 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320222 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-25[msan] Intercept __strxfrm_l.Evgeniy Stepanov
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@316613 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-25Add NetBSD improvements in sanitizersKamil Rytarowski
Summary: Changes: * Add initial msan stub support. * Handle NetBSD specific pthread_setname_np(3). * NetBSD supports __attribute__((tls_model("initial-exec"))), define it in SANITIZER_TLS_INITIAL_EXEC_ATTRIBUTE. * Add ReExec() specific bits for NetBSD. * Simplify code and add syscall64 and syscall_ptr for !NetBSD. * Correct bunch of syscall wrappers for NetBSD. * Disable test/tsan/map32bit on NetBSD as not applicable. * Port test/tsan/strerror_r to a POSIX-compliant OSes. * Disable __libc_stack_end on NetBSD. * Disable ReadNullSepFileToArray() on NetBSD. * Define struct_ElfW_Phdr_sz, detected missing symbol by msan. * Change type of __sanitizer_FILE from void to char. This helps to reuse this type as an array. Long term it will be properly implemented along with SANITIZER_HAS_STRUCT_FILE setting to 1. * Add initial NetBSD support in lib/tsan/go/buildgo.sh. * Correct referencing stdout and stderr in tsan_interceptors.cc on NetBSD. * Document NetBSD x86_64 specific virtual memory layout in tsan_platform.h. * Port tests/rtl/tsan_test_util_posix.cc to NetBSD. * Enable NetBSD tests in test/msan/lit.cfg. * Enable NetBSD tests in test/tsan/lit.cfg. Sponsored by <The NetBSD Foundation> Reviewers: joerg, vitalybuka, eugenis, kcc, dvyukov Reviewed By: dvyukov Subscribers: #sanitizers, llvm-commits, kubamracek Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D39124 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@316591 91177308-0d34-0410-b5e6-96231b3b80d8
2017-10-10Factor out "stable-runtime" feature and enable it on all android.Evgeniy Stepanov
This is a very poorly named feature. I think originally it meant to cover linux only, but the use of it in msan seems to be about any aarch64 platform. Anyway, this change should be NFC on everything except Android. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@315389 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-05[msan] Check sigset_t and sigaction arguments.Evgeniy Stepanov
Summary: Check sigset_t arguments in ppoll, sig*wait*, sigprocmask interceptors, and the entire "struct sigaction" in sigaction. This can be done because sigemptyset/sigfullset are intercepted and signal masks should be correctly marked as initialized. Reviewers: vitalybuka Subscribers: kubamracek, llvm-commits Differential Revision: https://reviews.llvm.org/D37367 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@312576 91177308-0d34-0410-b5e6-96231b3b80d8
2017-08-04[msan] Switch the pvalloc overflow test to a lit testBenjamin Kramer
The test was not passing on targets where allocator_may_return_null defaults to true. Change the test to a lit test so that we can test both situations. Patch by Kostya Kortchinsky! Differential Revision: https://reviews.llvm.org/D36302 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@310033 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-18[Sanitizers] ASan/MSan/LSan allocators set errno on failure.Alex Shlyapnikov
Summary: ASan/MSan/LSan allocators set errno on allocation failures according to malloc/calloc/etc. expected behavior. MSan allocator was refactored a bit to make its structure more similar with other allocators. Also switch Scudo allocator to the internal errno definitions. TSan allocator changes will follow. Reviewers: eugenis Subscribers: llvm-commits, kubamracek Differential Revision: https://reviews.llvm.org/D35275 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@308344 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-16[msan] Add missing include for fix test on WindowsVitaly Buka
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@308122 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-28[Sanitizers] Operator new() interceptors always die on allocation errorAlex Shlyapnikov
Summary: Operator new interceptors behavior is now controlled by their nothrow property as well as by allocator_may_return_null flag value: - allocator_may_return_null=* + new() - die on allocation error - allocator_may_return_null=0 + new(nothrow) - die on allocation error - allocator_may_return_null=1 + new(nothrow) - return null Ideally new() should throw std::bad_alloc exception, but that is not trivial to achieve, hence TODO. Reviewers: eugenis Subscribers: kubamracek, llvm-commits Differential Revision: https://reviews.llvm.org/D34731 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@306604 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-07[tsan]: Fix GNU version of strerror_r interceptorVitaly Buka
GNU version of strerror_r returns a result pointer that doesn't match the input buffer. The result pointer is in fact a pointer to some internal storage. TSAN was recording a write to this location, which was incorrect. Fixed https://github.com/google/sanitizers/issues/696 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@304858 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-01[asan] Add strndup/__strndup interceptors.Pierre Gousseau
Recommit of r302781 with Vitaly Buka's fix for non zero terminated strings. Differential Revision: https://reviews.llvm.org/D31457 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@304399 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-18Revert r302781 and subsequent attempts to disable part of it.Daniel Jasper
The Msan unit tests are still broken and by this point, I think we should start over. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@303339 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-18Fixup r303324 - temporary disable stndup interceptor, due to r302781 being buggyDiana Picus
r303324 missed one of the tests added by r302781. This commit applies the same fix as r303324 to the missed test (strndup.cc). git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@303338 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-11Renumber test line number expectations after r302783.Benjamin Kramer
Also remove a confused stable-runtimes requirement. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@302801 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-11[msan] add a regression test for PR32842Alexander Potapenko
Make sure MSan doesn't miss a bug comparing two integers with defined low bits. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@302788 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-11[MSAN] test failed randomly on ARM when XFAILED for MIPSRenato Golin
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@302786 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-11mips] XFAIL wcsncpy.cc test.Simon Dardis
The stack unwinder fails to unwind the stack past the interceptor stack frame, resulting in a test failure. XFAIL this for now. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@302783 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-11[asan] Recommit of r301904: Add strndup/__strndup interceptorsPierre Gousseau
Fix undeclared __interceptor_malloc in esan_interceptors.cc Fix undeclared strnlen on OSX Differential Revision: https://reviews.llvm.org/D31457 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@302781 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-09[compiler-rt][mips] Fix a test for mips.Simon Dardis
GCC 4.9.2 likes the specialize one of the memcpys in msan_interceptors.cc, leading to test failure. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@302561 91177308-0d34-0410-b5e6-96231b3b80d8
2017-05-02Revert r301904 causing tsan test failure in x86_64-linux-autoconfPierre Gousseau
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@301909 91177308-0d34-0410-b5e6-96231b3b80d8
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