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2017-12-22[MSan,TSan] Add aligned new/delete interceptors.Alex Shlyapnikov
Summary: Providing aligned new/delete implementations to match ASan. Unlike ASan, MSan and TSan do not perform any additional checks on overaligned memory, hence no sanitizer specific tests. Reviewers: eugenis Subscribers: kubamracek, #sanitizers, llvm-commits Differential Revision: https://reviews.llvm.org/D41532 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@321365 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-14Set of corrections for MSan/NetBSDKamil Rytarowski
Summary: Changes: - Don't attempt to intercept GLIBC specific functions like __strtol_internal. This is required to stop intercepting it as we leak dlerror(3) for dlsym(3) that cannot manage to find a symbol. - Correct interception of fstatat(2). - Don't run a test for fgetgrent_r() that is missing on NetBSD. - Correct link_map location (offset) in Obj_Entry on x86_64 and i386. - Stop intercepting getpshared-like functions in pthread(3). This is feature is not enabled by default on NetBSD as it's unfinished. - Switch intercepting from UTMP to UTMPX functions. Sponsored by <The NetBSD Foundation> Reviewers: joerg, vitalybuka, eugenis, kcc Reviewed By: vitalybuka Subscribers: llvm-commits, srhines, kubamracek, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D41053 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320663 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
2017-12-09Add NetBSD/x86_64 mapping in MSanKamil Rytarowski
Summary: Reuse the Linux new mapping as it is. Sponsored by <The NetBSD Foundation> Reviewers: joerg, vitalybuka, eugenis Reviewed By: vitalybuka Subscribers: llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D41023 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320218 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-06Revert SVN r, 319967Kamil Rytarowski
"Correct atexit(3) support in MSan/NetBSD" This causes failures on Linux. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@319981 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-06Correct atexit(3) support in MSan/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. - Allow usage of global vars with ctors in interceptors. This allows to use Vector without automatic cleaning up the structures. This code has been modeled after TSan implementation for the same functions. Sponsored by <The NetBSD Foundation> Reviewers: joerg, dvyukov, eugenis, vitalybuka, kcc Reviewed By: vitalybuka Subscribers: llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D40714 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@319967 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-06Handle NetBSD symbol renaming in msan_interceptors.ccKamil Rytarowski
Summary: NetBSD renames symbols for historical and compat reasons. Add required symbol renames in sanitizer_common_interceptors.inc: - gettimeofday -> __gettimeofday50 - getrusage -> __getrusage50 - shmctl -> __shmctl50 Additionally handle sigaction symbol mangling. Rename the function symbol in the file to SIGACTION_SYMNAME and define it as __sigaction14 for NetBSD and sigaction for !NetBSD. We cannot use simple renaming with the proprocessor, as there are valid fields named sigaction and they must be left intact. Sponsored by <The NetBSD Foundation> Reviewers: joerg, eugenis, vitalybuka, dvyukov Reviewed By: vitalybuka Subscribers: kubamracek, llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D40766 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@319966 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-06Fix typo fcvr -> fcvt and attempt to unbreak MSan/!NetBSDKamil Rytarowski
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@319872 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-06Fix typo gcvr -> gcvt and attempt to unbreak MSan/!NetBSDKamil Rytarowski
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@319871 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-06Support pthread_key_create symbol alias in MSan/NetBSDKamil Rytarowski
Summary: NetBSD uses indirection symbol for a set of threading functions. Add alias to handle __libc_thr_keycreate the same way as pthread_key_create. Sponsored by <The NetBSD Foundation> Reviewers: joerg, dvyukov, eugenis, vitalybuka Reviewed By: vitalybuka Subscribers: llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D40767 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@319868 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-06Disable absent functions in MSan/NetBSD interceptorsKamil Rytarowski
Summary: Disable for NetBSD missing functions missing in this OS: - mempcpy, - __libc_memalign, - malloc_usable_size, - stpcpy, - gcvt, - wmempcpy, - fcvt. Sponsored by <The NetBSD Foundation> Reviewers: joerg, dvyukov, eugenis, vitalybuka, kcc Reviewed By: vitalybuka Subscribers: llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D40764 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@319866 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-05[msan] Fix formattingVitaly Buka
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@319844 91177308-0d34-0410-b5e6-96231b3b80d8
2017-12-05[msan] add strtouq msan interceptorVitaly Buka
Summary: Fixes https://github.com/google/sanitizers/issues/892 Reviewers: eugenis Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D40853 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@319843 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30[msan] Fix return type of mbrtowcVitaly Buka
Summary: Fixes https://github.com/google/oss-fuzz/issues/1009 Reviewers: eugenis Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D40676 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@319484 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-30Linux needs to include sys/uio.h for readv, preadvStephan Bergmann
...at least when building against glibc-2.26-16.fc27.x86_64 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@319412 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-27[msan] Avoid shadowing a variable in common interceptors.Evgeniy Stepanov
"offset" declared in a macro may shadow a variable with the same name in the caller which is used in a macro argument. We are quite lucky that it does not actually happen, but rename the variable anyway to be on the safe side. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@319115 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
2017-11-10[msan] Remove INTERCEPT_FUNCTION for sigaction and signalVitaly Buka
Already done in InitializeSignalInterceptors() git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317906 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-10[tsan] Use __sanitizer_siginfo from sanitizer_commonVitaly Buka
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317872 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[msan] Move sigaction_impl and signal_implVitaly Buka
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317863 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-09[msan] Extract signal_impl and sigaction_implVitaly Buka
Summary: Preparation for using interceptor from sanitizer_common. Reviewers: eugenis Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D39824 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317844 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-09[msan] Replace CommonSanitizerReportMutex with ScopedErrorReportLockVitaly Buka
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317842 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-09[PowerPC][msan] Update msan to handle changed memory layouts in newer kernelsBill Seurer
In more recent Linux kernels (including those with 47 bit VMAs) the layout of virtual memory for powerpc64 changed causing the memory sanitizer to not work properly. This patch adjusts the memory ranges in the tables for the memory sanitizer to work on the newer kernels while continuing to work on the older ones as well. Tested on several 4.x and 3.x kernel releases. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317802 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-09[msan] Add context argument into GetStackTraceVitaly Buka
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317773 91177308-0d34-0410-b5e6-96231b3b80d8
2017-11-07(NFC) Rename GetMax{,User}VirtualAddress.Evgeniy Stepanov
Future change will introduce GetMaxVirtualAddress that will not take the kernel area into account. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317638 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
2017-09-11[compiler-rt] Cleanup decoratorsVitaly Buka
Summary: Removed redundant End*() methods which defined same way. Removed redundant Warning() methods. Reviewers: eugenis Subscribers: kubamracek, llvm-commits, dberris Differential Revision: https://reviews.llvm.org/D37549 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@312950 91177308-0d34-0410-b5e6-96231b3b80d8
2017-09-06[msan] Remove a stale fixme (NFC).Evgeniy Stepanov
It was fixed in 312576. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@312597 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
2017-09-02(NFC) Fix the use of do{}while(0) in a macro.Evgeniy Stepanov
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@312396 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
2017-08-02[msan] Check for pvalloc overflowKostya Kortchinsky
Summary: CheckForPvallocOverflow was introduced with D35818 to detect when pvalloc would wrap when rounding up to the next multiple of the page size. Add this check to MSan's pvalloc implementation. This time I made sure I was actually running (and writing) the correct tests, and that they are passing... Reviewers: alekseyshl Reviewed By: alekseyshl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D36164 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@309883 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-31[msan] Reverting D36093Kostya Kortchinsky
Summary: Reverting D36093 until I can figure out how to launch the correct tests :/ My apologies. Reviewers: alekseyshl Reviewed By: alekseyshl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D36120 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@309637 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-31[msan] Check for pvalloc overflowKostya Kortchinsky
Summary: `CheckForPvallocOverflow` was introduced with D35818 to detect when pvalloc would wrap when rounding up to the next multiple of the page size. Add this check to MSan's pvalloc implementation. Reviewers: alekseyshl Reviewed By: alekseyshl Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D36093 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@309601 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-28[compiler-rt] Add missing quotation marks to msan_compile invocationKrzysztof Parzyszek
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@309430 91177308-0d34-0410-b5e6-96231b3b80d8
2017-07-28[sanitizer tests CMake] Factor out CMake logic for compiling sanitizer testsGeorge Karpenkov
Currently there's a large amount of CMake logic duplication for compiling sanitizer tests. If we add more sanitizers, the duplication will get even worse. This change factors out common compilation commands into a macro available to all sanitizers. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@309405 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
2017-07-06[Sanitizers] Consolidate internal errno definitions.Alex Shlyapnikov
Move internal errno definitions to common to be shared by all sanitizers and to be used by allocators. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@307233 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-29MergeAlex Shlyapnikov
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@306746 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
2017-06-27[msan] Intercept wcscat, wcsncat.Evgeniy Stepanov
Also move wcslen, wscnlen to common interceptors. Reviewers: vitalybuka Reviewed By: vitalybuka Subscribers: kubamracek, llvm-commits Differential Revision: https://reviews.llvm.org/D34656 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@306482 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-20[Sanitizers] Move cached allocator_may_return_null flag to sanitizer_allocatorAlex Shlyapnikov
Summary: Move cached allocator_may_return_null flag to sanitizer_allocator.cc and provide API to consolidate and unify the behavior of all specific allocators. Make all sanitizers using CombinedAllocator to follow AllocatorReturnNullOrDieOnOOM() rules to behave the same way when OOM happens. When OOM happens, turn allocator_out_of_memory flag on regardless of allocator_may_return_null flag value (it used to not to be set when allocator_may_return_null == true). release_to_os_interval_ms and rss_limit_exceeded will likely be moved to sanitizer_allocator.cc too (later). Reviewers: eugenis Subscribers: srhines, kubamracek, llvm-commits Differential Revision: https://reviews.llvm.org/D34310 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@305858 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-16[Sanitizer] Remove CombinedAllocator::Allocate's 'cleared' parameterAlex Shlyapnikov
Summary: CombinedAllocator::Allocate cleared parameter is not used anywhere and seem to be obsolete. Reviewers: eugenis Subscribers: llvm-commits, kubamracek Differential Revision: https://reviews.llvm.org/D34289 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@305590 91177308-0d34-0410-b5e6-96231b3b80d8
2017-06-05Revert r304285, r304297.Evgeniy Stepanov
r304285 - [sanitizer] Avoid possible deadlock in child process after fork r304297 - [sanitizer] Trying to fix MAC buildbots after r304285 These changes create deadlock when Tcl calls pthread_create from a pthread_atfork child handler. More info in the original review at https://reviews.llvm.org/D33325 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@304735 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
2017-05-31[sanitizer] Avoid possible deadlock in child process after forkMaxim Ostapenko
This patch addresses https://github.com/google/sanitizers/issues/774. When we fork a multi-threaded process it's possible to deadlock if some thread acquired StackDepot or allocator internal lock just before fork. In this case the lock will never be released in child process causing deadlock on following memory alloc/dealloc routine. While calling alloc/dealloc routines after multi-threaded fork is not allowed, most of modern allocators (Glibc, tcmalloc, jemalloc) are actually fork safe. Let's do the same for sanitizers except TSan that has complex locking rules. Differential Revision: https://reviews.llvm.org/D33325 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@304285 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
2017-05-15[sanitizer] Change SizeClassAllocator32 to accept just one templateKostya Kortchinsky
Summary: With rL279771, SizeClassAllocator64 was changed to accept only one template instead of 5, for the following reasons: "First, this will make the mangled names shorter. Second, this will make adding more parameters simpler". This patch mirrors that work for SizeClassAllocator32. This is in preparation for introducing the randomization of chunks in the 32-bit SizeClassAllocator in a later patch. Reviewers: kcc, alekseyshl, dvyukov Reviewed By: alekseyshl Subscribers: llvm-commits, kubamracek Differential Revision: https://reviews.llvm.org/D33141 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@303071 91177308-0d34-0410-b5e6-96231b3b80d8
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