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2016-05-17[tsan] Ensure mmap respects ignore_interceptors_accessesAnna Zaks
The ignore_interceptors_accesses setting did not have an effect on mmap, so let's change that. It helps in cases user code is accessing the memory written to by mmap when the synchronization is ensured by the code that does not get rebuilt. (This effects Swift interoperability since it's runtime is mapping memory which gets accessed by the code emitted into the Swift application by the compiler.) Differential Revision: http://reviews.llvm.org/D20294 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@269855 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-17[asan] Don't raise false alarm to recv/recvfrom when MSG_TRUNC is present.Maxim Ostapenko
Fix https://llvm.org/bugs/show_bug.cgi?id=27673. Currenty ASan checks the return value of real recv/recvfrom to see if the written bytes fit in the buffer. That works fine most of time. However, there is an exception: (from the RECV(2) man page) MSG_TRUNC (since Linux 2.2) ... return the real length of the packet or datagram, even when it was longer than the passed buffer. ... Some programs combine MSG_TRUNC, MSG_PEEK and a single-byte buffer to peek the incoming data size without reading (much of) them. In this case, the return value is usually longer than what's been written and ASan raises a false alarm here. To avoid such false positive reports, we can use min(res, len) in COMMON_INTERCEPTOR_WRITE_RANGE checks. Differential Revision: http://reviews.llvm.org/D20280 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@269749 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-14[mips][ias] Two XFAIL's now pass on 32-bit MIPS.Daniel Sanders
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@269571 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-13[profile] Eliminate dynamic memory allocation for buffered writerXinliang David Li
With this change, dynamic memory allocation is only used for testing purpose. This change is one of the many steps to make instrument profiler dynamic allocation free. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@269453 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-12Update test expectations after r269291 (Fix a crash when demangling Swift ↵Kuba Brecka
symbols). git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@269311 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-12[ASan] [SystemZ] Add -mbackchain to test cflags.Marcin Koscielnicki
This is needed for proper operation of the fast unwinder, see the discussion on D18895. Differential Revision: http://reviews.llvm.org/D19898 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@269277 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-11Reapply r268608 Rong Xu
Re-enable the tests after IR instrumentation fix (r269146). Check-in on behalf of davidxl. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@269219 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-11[esan] EfficiencySanitizer shadow memoryDerek Bruening
Summary: Adds shadow memory mapping support common to all tools to the new Efficiencysanitizer ("esan") family of tools. This includes: + Shadow memory layout and mapping support for 64-bit Linux for any power-of-2 scale-down (1x, 2x, 4x, 8x, 16x, etc.) that ensures that shadow(shadow(address)) does not overlap shadow or application memory. + Mmap interception to ensure the application does not map on top of our shadow memory. + Init-time sanity checks for shadow regions. + A test of the mmap conflict mechanism. Reviewers: aizatsky, filcab Subscribers: filcab, kubabrecka, llvm-commits, vitalybuka, eugenis, kcc, zhaoqin Differential Revision: http://reviews.llvm.org/D19921 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@269198 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-10Revert r268130 -- more bot failureXinliang David Li
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@269142 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-10Reapply r268608 after IR instr bug fixXinliang David Li
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@269130 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-10tsan: fix another crash due to processorsDmitry Vyukov
Another stack where we try to free sync objects, but don't have a processors is: // ResetRange // __interceptor_munmap // __deallocate_stack // start_thread // clone Again, it is a latent bug that lead to memory leaks. Also, increase amount of memory we scan in MetaMap::ResetRange. Without that the test does not fail, as we fail to free the sync objects on stack. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@269041 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-09Remove XFAILXinliang David Li
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268978 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-09Re install test reverted by r268866Xinliang David Li
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268964 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-07[InstrProf] Delete unstable test on ARM. See PR27667Renato Golin
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268866 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-06tsan: fix a crashDmitry Vyukov
Fixes crash reported in: https://bugs.chromium.org/p/v8/issues/detail?id=4995 The problem is that we don't have a processor in a free interceptor during thread exit. The crash was introduced by introduction of Processors. However, previously we silently leaked memory which wasn't any better. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268782 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-06Revert r268608 -- unexplained darwin bot failureXinliang David Li
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268779 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-06[InstProf] Temporarily removing a test that fails/passes on different ↵Renato Golin
configurations (PR27667) git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268748 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-06XFAILing a test on ARM. See PR27667Renato Golin
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268745 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-06[asan] Bail out on stack overflow in recovery mode.Maxim Ostapenko
In recovery mode, when ASan detects stack overflow (say, when infinite recursion detected), it tries to continue program execution and hangs on repetitive error reports. There isn't any sense to do it, we can just bail out on stack overflow error, because the program would crash soon anyway. Differential Revision: http://reviews.llvm.org/D19958 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268713 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-05Add a test of VP with shared libXinliang David Li
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268612 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-05IR value profile testing cleanup Xinliang David Li
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268608 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-02Relax stack check as on some platforms demanglers failVitaly Buka
Summary: On Windows (already fixed) and FreeBSD we have stacks traces without operator(). Reviewers: eugenis Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D19427 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268332 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-02Add another failing use-after-scope testVitaly Buka
Summary: Use after scope is not detected if array larger then 8 bytes. Subscribers: kubabrecka Differential Revision: http://reviews.llvm.org/D19572 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268330 91177308-0d34-0410-b5e6-96231b3b80d8
2016-05-02[sanitizer] Fix a crash in SizeClassAllocator32 with an out-of-range pointerKuba Brecka
This happens on a 64-bit platform that uses SizeClassAllocator32 (e.g. ASan on AArch64). When querying a large invalid pointer, `__sanitizer_get_allocated_size(0xdeadbeefdeadbeef)`, an assertion will fail. This patch changes PointerIsMine to return false if the pointer is outside of [kSpaceBeg, kSpaceBeg + kSpaceSize). Differential Revision: http://reviews.llvm.org/D15008 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268243 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-30[ASan] Add shadow offset for SystemZ.Marcin Koscielnicki
This is the compiler-rt counterpart to D19650. Differential Revision: http://reviews.llvm.org/D19652 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268162 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-30Finally fix invalid-pointer-pairs.cc. This time the demangle on the Windows ↵Filipe Cabecinhas
buildbot. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268160 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-30[tsan] Return 0 from malloc_size for non-malloc'd pointersKuba Brecka
In http://reviews.llvm.org/D19100, I introduced a bug: On OS X, existing programs rely on malloc_size() to detect whether a pointer comes from heap memory (malloc_size returns non-zero) or not. We have to distinguish between a zero-sized allocation (where we need to return 1 from malloc_size, due to other binary compatibility reasons, see http://reviews.llvm.org/D19100), and pointers that are not returned from malloc at all. Differential Revision: http://reviews.llvm.org/D19653 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268157 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-29Fix test's memory leaks.Filipe Cabecinhas
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268138 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-29Try to fix clang-cmake-aarch64-42vma by removing a memory leak (have a ↵Filipe Cabecinhas
global var capture it). git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268114 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-29[asan] Assert in __sanitizer_ptr_{sub,cmp} if one of the pointers was freed.Filipe Cabecinhas
Summary: This (partially) implements the check mentioned at http://kristerw.blogspot.co.uk/2016/04/dangling-pointers-and-undefined-behavior.html (via John Regehr) Quoting: "That the behavior is undefined follows from C11 6.2.4 "Storage durations of objects" The lifetime of an object is the portion of program execution during which storage is guaranteed to be reserved for it. An object exists, has a constant address, and retains its last-stored value throughout its lifetime. If an object is referred to outside of its lifetime, the behavior is undefined. The value of a pointer becomes indeterminate when the object it points to (or just past) reaches the end of its lifetime. and 7.22.3 "Memory management functions" that says that free ends the lifetime of objects The lifetime of an allocated object extends from the allocation until the deallocation. " We can probably implement this for stack variables too, but I think this is a good start to see if there's interest in this check. We can also hide this behind a flag, too. Reviewers: samsonov, kcc, rsmith, regehr Subscribers: kubabrecka, llvm-commits Differential Revision: http://reviews.llvm.org/D19691 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@268097 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-29[ASan] [SystemZ] Mark segv_read_write.c as UNSUPPORTED.Marcin Koscielnicki
On s390*-linux, sigcontext just doesn't contain any information that could be used to recover the type of access, so there's no way to fix this, short of emulating the faulting instruction. Differential Revision: http://reviews.llvm.org/D19655 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267960 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-28[test/asan] Update a test case to work with old Darwin SDK'sVedant Kumar
On Darwin, MAP_ANONYMOUS is a synonym for MAP_ANON. However, some SDK's don't define MAP_ANONYMOUS. Use MAP_ANON to work around this. (As a point of interest, the situation is exactly reversed on Linux.) git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267907 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-28Update visibility flags for CFI tests.Peter Collingbourne
Differential Revision: http://reviews.llvm.org/D18813 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267902 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-27[sanitizers] read/write page fault detection on mac.Mike Aizatsky
Summary: Resubmit of http://reviews.llvm.org/D19495 enabled only on intel. Subscribers: kubabrecka Differential Revision: http://reviews.llvm.org/D19561 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267750 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-27Un-XFAIL tests on Windows after fixing PR27492Reid Kleckner
Private symbols in PDBs do not have parameter types in their names so we have to drop the parens from the lambda call operator. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267735 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-26[sanitizers] rewriting test assuming assert() changes coverage.Mike Aizatsky
Summary: On windows platform assert() call creates two distinct CFG edges which are coverage-instrumented. Simply calling assert would change coverage numbers on the platform. Subscribers: kubabrecka Differential Revision: http://reviews.llvm.org/D19514 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267610 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-26[sanitizer] [SystemZ] Add ptrace support bits.Marcin Koscielnicki
Differential Revision: http://reviews.llvm.org/D19134 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267548 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-26Revert "[sanitizers] read/write page fault detection on mac."Mehdi Amini
This reverts commit r267477. It broke our bots that enables the AArch64 backends, it seems that this code is using a Darwin *X86 specific* field. From: Mehdi Amini <mehdi.amini@apple.com> git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267526 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-25[MSan] Use COMMON_INTERCEPTOR_ENTER in libdl interceptors.Marcin Koscielnicki
This fixes fails in test/msan/dlerror.cc - when real dlerror calls strcmp, our strcmp interceptor now skips poison checking, since it's called in interceptor context. Strictly speaking, only the dlerror change is necessary to fix the fail, but let's also change the other two just in case. Differential Revision: http://reviews.llvm.org/D19499 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267486 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-25[sanitizers] read/write page fault detection on mac.Mike Aizatsky
Subscribers: kubabrecka Differential Revision: http://reviews.llvm.org/D19495 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267477 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-23[esan] EfficiencySanitizer libc interceptorsDerek Bruening
Summary: Adds libc interceptors to the runtime library for the new EfficiencySanitizer ("esan") family of tools. The interceptors cover the memory operations in most common library calls and will be shared among all esan tools. Reviewers: aizatsky Subscribers: zhaoqin, tberghammer, danalbert, srhines, llvm-commits, vitalybuka, eugenis, kcc Differential Revision: http://reviews.llvm.org/D19411 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267293 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-22[asan] Disable one test on windows.Evgeniy Stepanov
Patch by Vitaly Buka. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267088 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-22Enable stack-use-after-scope tests.Evgeniy Stepanov
Fix and enable working stack-use-after-scope tests. Add more failing tests for the feature, for fix later. PR27453. Patch by Vitaly Buka. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267084 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-21[esan] EfficiencySanitizer base runtime libraryDerek Bruening
Summary: Adds the initial version of a runtime library for the new EfficiencySanitizer ("esan") family of tools. The library includes: + Slowpath code via callouts from the compiler instrumentation for each memory access. + Registration of atexit() to call finalization code. + Runtime option flags controlled by the environment variable ESAN_OPTIONS. The common sanitizer flags are supported such as verbosity and log_path. + An initial simple test. Still TODO: common code for libc interceptors and shadow memory mapping, and tool-specific code for shadow state updating. Reviewers: eugenis, vitalybuka, aizatsky, filcab Subscribers: filcab, vkalintiris, kubabrecka, llvm-commits, zhaoqin, kcc Differential Revision: http://reviews.llvm.org/D19168 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267060 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-21[asan] Mark strdup test as unsupported on arm/linux.Evgeniy Stepanov
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@267028 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-21[tsan] Rename ReportThread->pid to ReportThread->os_idKuba Brecka
The field "pid" in ReportThread is used to store the OS-provided thread ID (pthread_self or gettid). The name "pid" suggests it's a process ID, which it isn't. Let's rename it. Differential Revision: http://reviews.llvm.org/D19365 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@266994 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-20[asan] Add __strdup interceptor.Evgeniy Stepanov
This happens on Linux when building as C (not C++) with optimization. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@266931 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-19[compiler-rt] Remove unwanted --check-prefix=CHECK from unit tests. NFC.Mandeep Singh Grang
Summary: Removed unwanted --check-prefix=CHECK from the following unit tests: test/asan/TestCases/Posix/start-deactivated.cc test/tsan/Darwin/ignored-interceptors.mm Patch by: Mandeep Singh Grang (mgrang) Reviewers: samsonov, kcc, dvyukov, eugenis Differential Revision: http://reviews.llvm.org/D19281 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@266813 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-18Additional test for use-after-scopeKostya Serebryany
Summary: Test that asan detects access to the dead variable captured by lambda. Reviewers: aizatsky, kcc Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D19238 git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@266676 91177308-0d34-0410-b5e6-96231b3b80d8
2016-04-16Replace hardcoded comment at 'lit.site.cfg.in'Alex Denisov
At the moment almost every lit.site.cfg.in contains two lines comment: ## Autogenerated by LLVM/Clang configuration. # Do not edit! The patch adds variable LIT_SITE_CFG_IN_HEADER, that is replaced from configure_lit_site_cfg with the note and some useful information. git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@266520 91177308-0d34-0410-b5e6-96231b3b80d8
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