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* Reland "[ASan] Do not misrepresent high value address dereferences as null ↵Julian Lettner2019-10-101-1/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | dereferences" Updated: Removed offending TODO comment. Dereferences with addresses above the 48-bit hardware addressable range produce "invalid instruction" (instead of "invalid access") hardware exceptions (there is no hardware address decoding logic for those bits), and the address provided by this exception is the address of the instruction (not the faulting address). The kernel maps the "invalid instruction" to SEGV, but fails to provide the real fault address. Because of this ASan lies and says that those cases are null dereferences. This downgrades the severity of a found bug in terms of security. In the ASan signal handler, we can not provide the real faulting address, but at least we can try not to lie. rdar://50366151 Reviewed By: vitalybuka Differential Revision: https://reviews.llvm.org/D68676 llvm-svn: 374265 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@374384 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "[ASan] Do not misrepresent high value address dereferences as null ↵Russell Gallop2019-10-101-8/+1
| | | | | | | | | | dereferences" As it was breaking bots running sanitizer lint check This reverts r374265 (git b577efe4567f1f6a711ad36e1d17280dd1c4f009) git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@374308 91177308-0d34-0410-b5e6-96231b3b80d8
* [ASan] Do not misrepresent high value address dereferences as null dereferencesJulian Lettner2019-10-101-1/+8
| | | | | | | | | | | | | | | | | | | | | | Dereferences with addresses above the 48-bit hardware addressable range produce "invalid instruction" (instead of "invalid access") hardware exceptions (there is no hardware address decoding logic for those bits), and the address provided by this exception is the address of the instruction (not the faulting address). The kernel maps the "invalid instruction" to SEGV, but fails to provide the real fault address. Because of this ASan lies and says that those cases are null dereferences. This downgrades the severity of a found bug in terms of security. In the ASan signal handler, we can not provide the real faulting address, but at least we can try not to lie. rdar://50366151 Reviewed By: vitalybuka Differential Revision: https://reviews.llvm.org/D68676 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@374265 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove NOLINTs from compiler-rtVitaly Buka2019-09-111-6/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@371687 91177308-0d34-0410-b5e6-96231b3b80d8
* Update compiler-rt cpplint.pyVitaly Buka2019-09-111-1/+1
| | | | | | https://github.com/cpplint/cpplint/commit/adb3500107f409ac5491188ae652ac3f4d03d9d3 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@371675 91177308-0d34-0410-b5e6-96231b3b80d8
* NFC: clang-format r370008 to suppress lint errorsVitaly Buka2019-08-271-2/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@370023 91177308-0d34-0410-b5e6-96231b3b80d8
* Fix buildbotDavid Carlier2019-08-271-1/+2
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@370011 91177308-0d34-0410-b5e6-96231b3b80d8
* [Sanitizer] Using huge page on FreeBSD for shadow mappingDavid Carlier2019-08-271-0/+2
| | | | | | | | | | | | | - Unless explicit configuration, using FreeBSD super pages feature for shadow mapping. - asan only for now. Reviewers: dim, emaste, vitalybuka Reviewed By: vitalybuka Differential Revision: https://reviews.llvm.org/D65851 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@370008 91177308-0d34-0410-b5e6-96231b3b80d8
* [Sanitizer] Linux explicitally migrate shadow mapping to Transparent Huge PageDavid Carlier2019-08-061-1/+1
| | | | | | | | | | | | in madvise mode, the shadow pages will be migrated only via madvise explicit calls. Reviewers: vitalybuka Reviewed By: vitalybuka Differential Revision: https://reviews.llvm.org/D65775 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@368090 91177308-0d34-0410-b5e6-96231b3b80d8
* [Sanitizer] Linux refactor shadow huge page mode handlingDavid Carlier2019-08-051-1/+1
| | | | | | | | | | | | Disabling Transparent huge page mode refactored in one function. Reviewers: vitalybuka Reviewed By: vitalybuka Differential Revision: https://reviews.llvm.org/D65771 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@367925 91177308-0d34-0410-b5e6-96231b3b80d8
* compiler-rt: Rename .cc file in lib/sanitizer_common to .cppNico Weber2019-07-311-1/+1
| | | | | | | | | | | | See https://reviews.llvm.org/D58620 for discussion, and for the commands I ran. In addition I also ran for f in $(svn diff | diffstat | grep .cc | cut -f 2 -d ' '); do rg $f . ; done and manually updated (many) references to renamed files found by that. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@367463 91177308-0d34-0410-b5e6-96231b3b80d8
* Remove esan.Nico Weber2019-03-111-1/+0
| | | | | | | | | | | It hasn't seen active development in years, and it hasn't reached a state where it was useful. Remove the code until someone is interested in working on it again. Differential Revision: https://reviews.llvm.org/D59133 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@355862 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizers] Don't use Windows Trace Logging with Clang in MSVC mode eitherMartin Storsjo2019-03-051-1/+1
| | | | | | | | | | | | | | | The TraceLoggingProvider.h header does work with clang-cl in general these days with Win SDK 10.0.17763.0, but when compiled in 32 bit x86 mode, with the -Z7 flag, compilation fails with the following error: fatal error: error in backend: assembler label '' can not be undefined With older Win SDKs, there are other build failures (regardless of architecture or the -Z7 flag). Differential Revision: https://reviews.llvm.org/D58958 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@355397 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Revert "[sanitizers] Don't use Windows Trace Logging on MinGW""Vlad Tsyrklevich2019-03-021-2/+8
| | | | | | | This reverts my orignal revert in r355250, I misread the buildbot logs. Volodymyr's commit in r355244 fixed the build. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@355251 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "[sanitizers] Don't use Windows Trace Logging on MinGW"Vlad Tsyrklevich2019-03-021-8/+2
| | | | | | | This reverts commits r355236 and r355244, they broke the Linux sanitizer build. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@355250 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizers] Fix build on macOS with LogFullErrorReport redefinition error.Volodymyr Sapsai2019-03-021-1/+1
| | | | | | | | | | | | | | | | | macOS has implementation of LogFullErrorReport and INLINE void LogFullErrorReport(const char *buffer) {} was causing > compiler-rt/lib/sanitizer_common/sanitizer_mac.cc:658:6: error: redefinition of 'LogFullErrorReport' Fixup for r355236. rdar://problem/48526020 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@355244 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizers] Don't use Windows Trace Logging on MinGWMartin Storsjo2019-03-011-2/+8
| | | | | | | | | | | | | | | | | | | mingw-w64 currently is lacking the headers for this feature. Make the include lowercase at the same time. We consistently use lowercase for windows header includes, as windows itself is case insensitive, the SDK headers (in general, not necessarily considering this particular header) aren't consistent among themselves about what the proper canonical capitalization for headers are, and MinGW uses all lowercase names for the headers (as it is often used on case sensitive filesystems). In case mingw-w64 later gets this header, we can revert this (but keep the include lowercased). Differential Revision: https://reviews.llvm.org/D58765 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@355236 91177308-0d34-0410-b5e6-96231b3b80d8
* [compiler-rt] Windows Trace Logging for error reports.Matthew G McGovern2019-02-271-2/+2
| | | | | | | | | | Adds option for collecting sanitixer dumps via trace logging. - Set log_to_syslog=1 to enable this output. - Consult https://aka.ms/windowstracelogging for details on use. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@355045 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Decorate /proc/self/maps better.Evgeniy Stepanov2019-02-061-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | Summary: Refactor the way /proc/self/maps entries are annotated to support most (all?) posix platforms, with a special implementation for Android. Extend the set of decorated Mmap* calls. Replace shm_open with internal_open("/dev/shm/%s"). Shm_open is problematic because it calls libc open() which may be intercepted. Generic implementation has limits (max number of files under /dev/shm is 64K on my machine), which can be conceivably reached when sanitizing multiple programs at once. Android implemenation is essentially free, and enabled by default. The test in sanitizer_common is copied to hwasan and not reused directly because hwasan fails way too many common tests at the moment. Reviewers: pcc, vitalybuka Subscribers: srhines, kubamracek, jfb, llvm-commits, kcc Differential Revision: https://reviews.llvm.org/D57720 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@353255 91177308-0d34-0410-b5e6-96231b3b80d8
* Update the file headers across all of the LLVM projects in the monorepoChandler Carruth2019-01-191-4/+3
| | | | | | | | | | | | | | | | | to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@351636 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Move android's GetPageSize to a header (NFC)Evgeniy Stepanov2019-01-121-0/+10
| | | | | | | No need to pay function call overhead for a function that returns a constant. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@350983 91177308-0d34-0410-b5e6-96231b3b80d8
* [xray] Detect MPROTECT and error out when it's enabled (on NetBSD)Michal Gorny2018-12-231-0/+1
| | | | | | | | | | Add a CheckMPROTECT() routine to detect when pax MPROTECT is enabled on NetBSD, and error xray out when it is. The solution is adapted from existing CheckASLR(). Differential Revision: https://reviews.llvm.org/D56049 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@350030 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Use "fast mmap" kernel flag for shadow memory on macOS 10.13.4+Kuba Mracek2018-11-061-0/+1
| | | | | | | | | | This speeds up process startup and teardown and also reduces lock contention when running multiple ASanified/TSanified processes simultaneously. Should greatly improve lit testing time. Differential Revision: https://reviews.llvm.org/D48445 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@346262 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Add char **GetEnviron() on all other platformsVitaly Buka2018-11-061-0/+1
| | | | | | | | Subscribers: kubamracek, llvm-commits Differential Revision: https://reviews.llvm.org/D54165 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@346257 91177308-0d34-0410-b5e6-96231b3b80d8
* Reland "SafeStack: Delay thread stack clean-up""Vlad Tsyrklevich2018-08-141-0/+1
| | | | | | | | | | This relands commit r339405 (reverted in commit r339408.) The original revert was due to tests failing on a darwin buildbot; however, after looking at the affected code more I realized that the Darwin safestack support has always been broken and disabled it in r339719. This relands the original commit. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@339723 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "SafeStack: Delay thread stack clean-up"Vlad Tsyrklevich2018-08-101-1/+0
| | | | | | | | | This reverts commit r339405, it's failing on Darwin buildbots because it doesn't seem to have a tgkill/thr_kill2 interface. It has a __pthread_kill() syscall, but that relies on having a handle to the thread's port which is not equivalent to it's tid. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@339408 91177308-0d34-0410-b5e6-96231b3b80d8
* SafeStack: Delay thread stack clean-upVlad Tsyrklevich2018-08-091-0/+1
| | | | | | | | | | | | | | | | | | Summary: glibc can call SafeStack instrumented code even after the last pthread data destructor has run. Delay cleaning-up unsafe stacks for threads until the thread is dead by having future threads clean-up prior threads stacks. Reviewers: pcc, eugenis Reviewed By: eugenis Subscribers: cryptoad, eugenis, kubamracek, delcypher, llvm-commits, #sanitizers, kcc Differential Revision: https://reviews.llvm.org/D50406 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@339405 91177308-0d34-0410-b5e6-96231b3b80d8
* sanitizers: consistently check result of MmapFixedNoReserveDmitry Vyukov2018-07-201-2/+2
| | | | | | | | | | | | | | | | | | MmapFixedNoReserve does not terminate process on failure. Failure to check its result and die will always lead to harder to debug crashes later in execution. This was observed in Go processes due to some address space conflicts. Consistently check result of MmapFixedNoReserve. While we are here also add warn_unused_result attribute to prevent such bugs in future and change return type to bool as that's what all callers want. Reviewed in https://reviews.llvm.org/D49367 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337531 91177308-0d34-0410-b5e6-96231b3b80d8
* [TSan] Fix madvise(MADV_NOHUGEPAGE) for meta shadow memoryAlex Shlyapnikov2018-06-131-2/+2
| | | | | | | | | | | | | | | | Summary: Move madvise(MADV_NOHUGEPAGE) for the meta shadow memory after the meta shadow memory is mapped (currently it silently fails with ENOMEM). Add a diagnostic message to detect similar problems in the future. Reviewers: dvyukov Subscribers: kubamracek, delcypher, #sanitizers, llvm-commits Differential Revision: https://reviews.llvm.org/D48097 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334624 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Cleanup ReadFileToVector and ReadFileToBufferVitaly Buka2018-06-061-6/+10
| | | | | | | | | | | | | | | Summary: Added unit-test. Fixed behavior of max_len argument. Call read syscall with all available buffer, not just a page. Reviewers: eugenis Subscribers: kubamracek, mgorny, llvm-commits Differential Revision: https://reviews.llvm.org/D46618 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334130 91177308-0d34-0410-b5e6-96231b3b80d8
* Introduce CheckASLR() in sanitizersKamil Rytarowski2018-06-051-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: At least the ASan, MSan, TSan sanitizers require disabled ASLR on a NetBSD. Introduce a generic CheckASLR() routine, that implements a check for the current process. This flag depends on the global or per-process settings. There is no simple way to disable ASLR in the build process from the level of a sanitizer or during the runtime execution. With ASLR enabled sanitizers that operate over the process virtual address space can misbehave usually breaking with cryptic messages. This check is dummy for !NetBSD. Sponsored by <The NetBSD Foundation> Reviewers: vitalybuka, joerg Reviewed By: vitalybuka Subscribers: cryptoad, kubamracek, llvm-commits, #sanitizers Tags: #sanitizers Differential Revision: https://reviews.llvm.org/D47442 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@333985 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Use all available rounded up capacityVitaly Buka2018-05-091-17/+14
| | | | | | | | | | Reviewers: eugenis Subscribers: kubamracek, llvm-commits Differential Revision: https://reviews.llvm.org/D46617 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@331940 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Cleanup sorting functionsVitaly Buka2018-05-091-10/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@331915 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Read file to InternalMmapVectorNoCtorVitaly Buka2018-05-081-9/+15
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@331791 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Fix InternalMmapVectorNoCtor reserve and resizeVitaly Buka2018-05-081-5/+6
| | | | | | | Remap on reserve of more than the current size. Don't remap on downsize. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@331784 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Add InternalMmapVector::swapVitaly Buka2018-05-081-0/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@331736 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Add operator== and operator!= for InternalMmapVectorNoCtorVitaly Buka2018-05-071-0/+13
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@331619 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Replace InternalScopedBuffer with InternalMmapVectorVitaly Buka2018-05-071-14/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@331618 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Remove reserving constructor from InternalMmapVectorVitaly Buka2018-05-071-4/+6
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@331617 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Implement InternalScopedBuffer with InternalMmapVectorVitaly Buka2018-05-071-46/+34
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@331616 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Make InternalScopedBuffer::size() behavior similar to vector.Vitaly Buka2018-05-071-1/+1
| | | | git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@331612 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] More dead code removalKostya Kortchinsky2018-04-241-7/+0
| | | | | | | | | | | | | | | | | | Summary: The following functions are only used in tests: `SetEnv`, `SanitizerSetThreadName`, `SanitizerGetThreadName`. I don't think they are going to be used in the future, and I propose to get rid of them, and associated tests and include. Reviewers: alekseyshl, eugenis, vitalybuka Reviewed By: vitalybuka Subscribers: dvyukov, vitalybuka, kubamracek, delcypher, llvm-commits, #sanitizers Differential Revision: https://reviews.llvm.org/D45838 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@330724 91177308-0d34-0410-b5e6-96231b3b80d8
* [sanitizer] Remove empty Symbolizer PrepareForSandboxingKostya Kortchinsky2018-04-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | Summary: `Symbolizer::PrepareForSandboxing` is empty for all platforms and apparently has been for a while (D10213). Remove it, and shuffle things around so that the platform specific code is now in `PlatformPrepareForSandboxing`. This allows to have one less symbolizer dependency in a common file, which helps for the upcoming split. Also remove `SymbolizerPrepareForSandboxing` in tsan_go which appears to not be used anywhere. Reviewers: alekseyshl, eugenis, dvyukov, mcgrathr Reviewed By: alekseyshl Subscribers: kubamracek, delcypher, llvm-commits, #sanitizers Differential Revision: https://reviews.llvm.org/D44953 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@329094 91177308-0d34-0410-b5e6-96231b3b80d8
* Mmap interceptor providing mprotect supportVitaly Buka2018-03-241-1/+3
| | | | | | | | | | | | | | | | Summary: - Intercepting mprotect calls. - Fixing forgotten flag check. Patch by David CARLIER Reviewers: vitalybuka, vsk Subscribers: delcypher, srhines, kubamracek, llvm-commits, #sanitizers Differential Revision: https://reviews.llvm.org/D44777 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@328415 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Mmap interceptor providing mprotect support"Vitaly Buka2018-03-231-1/+1
| | | | | | | | Breaks Darwin. This reverts commit r328369. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@328375 91177308-0d34-0410-b5e6-96231b3b80d8
* Mmap interceptor providing mprotect supportVitaly Buka2018-03-231-1/+1
| | | | | | | | | | | | | | | | | | Summary: - Intercepting mprotect calls. - Fixing forgotten flag check. Patch by David CARLIER Reviewers: vitalybuka, vsk Reviewed By: vitalybuka Subscribers: srhines, kubamracek, llvm-commits, #sanitizers Differential Revision: https://reviews.llvm.org/D44777 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@328369 91177308-0d34-0410-b5e6-96231b3b80d8
* Mmap interceptor new option, Write Exec runtime detectorVitaly Buka2018-03-211-0/+2
| | | | | | | | | | | | | | | | | | Summary: Following-up the refactoring of mmap interceptors, adding a new common option to detect PROT_WRITE|PROT_EXEC pages request. Patch by David CARLIER Reviewers: vitalybuka, vsk Reviewed By: vitalybuka Subscribers: krytarowski, #sanitizers Differential Revision: https://reviews.llvm.org/D44194 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@328151 91177308-0d34-0410-b5e6-96231b3b80d8
* tsan: support inlined frames in external symbolizationDmitry Vyukov2018-03-211-1/+1
| | | | | | | | | | | | | | New API passes a callback function to the external symbolizer, allowing it to add multiple frames to the traceback. Note that the old interface API will be still supported until the clients migrate to the new one. Author: asmundak (Alexander Smundak) Reviewed in: https://reviews.llvm.org/D44714 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@328079 91177308-0d34-0410-b5e6-96231b3b80d8
* Revert "Mmap interceptor new option, Write Exec runtime detector"Vitaly Buka2018-03-171-2/+0
| | | | | | | | Breaks Android bot. This reverts commit r327747. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@327762 91177308-0d34-0410-b5e6-96231b3b80d8
* Mmap interceptor new option, Write Exec runtime detectorVitaly Buka2018-03-161-0/+2
| | | | | | | | | | | | | | | | Summary: Following-up the refactoring of mmap interceptors, adding a new common option to detect PROT_WRITE|PROT_EXEC pages request. Patch by David CARLIER Reviewers: vitalybuka, vsk Reviewed By: vitalybuka Subscribers: krytarowski, #sanitizers Differential Revision: https://reviews.llvm.org/D44194 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@327747 91177308-0d34-0410-b5e6-96231b3b80d8
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