Commit Graph

2371 Commits

Author SHA1 Message Date
Evgeniy Stepanov a4d08c4e87 [sanitizer] Move TSan and MSan recvmsg interceptors to common.
llvm-svn: 182843
2013-05-29 11:30:00 +00:00
Dmitry Vyukov 2b997d2914 tsan: match "race" suppressions against "race on vptr" reports
llvm-svn: 182842
2013-05-29 11:23:54 +00:00
Peter Collingbourne 93aa8dfb78 [nolibc] Now that we have a custom allocator, remove dummy allocator
definitions from test.

llvm-svn: 182841
2013-05-29 10:52:59 +00:00
Alexey Samsonov 25ad5a6735 [sanitizer] Use raw check in internal allocator to prevent self-deadlocks. Try to fix Windows build.
llvm-svn: 182840
2013-05-29 10:41:53 +00:00
Sergey Matveev e615432313 [lsan] Convert the remaining LSan tests to output tests.
llvm-svn: 182839
2013-05-29 10:12:37 +00:00
Evgeniy Stepanov f28217ad0e [sanitizer] modf/modff/modfl interceptors.
llvm-svn: 182838
2013-05-29 10:03:11 +00:00
Alexey Samsonov 75289297af Exclude sanitizer_nolibc_test from TSan test run. Fix lint warnings
llvm-svn: 182837
2013-05-29 09:40:07 +00:00
Alexey Samsonov c30e2d6b3a Make InternalAlloc/InternalFree in sanitizer runtimes libc-free by switching to a custom allocator.
llvm-svn: 182836
2013-05-29 09:15:39 +00:00
Evgeniy Stepanov 08f662845d [sanitizer] Share TSan accept & accept4 interceptors with other sanitizers.
llvm-svn: 182835
2013-05-29 09:09:58 +00:00
Evgeniy Stepanov 40d7ed5d1e [sanitizer] Improve getaddrinfo interceptor.
llvm-svn: 182775
2013-05-28 14:34:37 +00:00
Evgeniy Stepanov dd0780f81c [msan] Change report header to be more alike to ASan and TSan.
llvm-svn: 182774
2013-05-28 14:27:30 +00:00
Peter Collingbourne a7887bf8be [nolibc] Add a test case for Linux/x86_64.
Differential Revision: http://llvm-reviews.chandlerc.com/D873

llvm-svn: 182770
2013-05-28 12:37:34 +00:00
Peter Collingbourne fb1a9f17e3 [nolibc] Make SymbolizerPrepareForSandboxing weak and optional.
Differential Revision: http://llvm-reviews.chandlerc.com/D872

llvm-svn: 182765
2013-05-28 11:05:05 +00:00
Peter Collingbourne 5b2669049a [nolibc] Make AddressInfo::Clear a weak function.
llvm-svn: 182743
2013-05-27 21:00:36 +00:00
Peter Collingbourne 123473d243 Use an address-of operator here to silence an MSVC warning.
llvm-svn: 182740
2013-05-27 16:02:19 +00:00
Sergey Matveev 39e8a6d87e [lsan] Begin converting LSan tests to output tests.
In this CL all old tests are removed and one LIT test is added.

llvm-svn: 182730
2013-05-27 11:41:46 +00:00
Sergey Matveev 9cda3df8bd [sanitizer] Move FindThreadByOSIdLocked from lsan to sanitizer_common.
llvm-svn: 182728
2013-05-27 10:35:51 +00:00
Alexey Samsonov 9c2bcf8c15 Improve support for compiler-rt tests in CMake build.
Now compiler-rt tests run correctly if compiler-rt is checked out into
arbitrary directory (not necessarily projects/compiler-rt).
Patch by Greg Fitzgerald!

llvm-svn: 182726
2013-05-27 09:35:24 +00:00
Nick Kledzik 23bbd617e4 <rdar://problem/12512722> Use arm divide instruction if available
llvm-svn: 182665
2013-05-24 19:38:11 +00:00
Sergey Matveev e45a0677a6 [lsan] Allow the ignored TLS range to be empty.
llvm-svn: 182657
2013-05-24 18:07:53 +00:00
Sergey Matveev 37dff38495 [lsan] Minor adjustments to LSan messages.
llvm-svn: 182648
2013-05-24 15:36:30 +00:00
Sergey Matveev c7715a228a [lsan] Prettify LSan reports and add a summary.
llvm-svn: 182646
2013-05-24 14:49:13 +00:00
Sergey Matveev bc880f3a54 [lsan] Add exitcode flag. Kill the process if leaks are found.
llvm-svn: 182641
2013-05-24 13:16:02 +00:00
Alexey Samsonov 646ec67e25 Disable init-order checking before destructors are run.
We don't want to report initialization-order bugs when a destructor of a global
variable accesses dynamically initialized global from another
(not necessarily initialized) module. We do this by intercepting __cxa_atexit and
registrering our own callback that unpoisons shadow for all dynamically initialized
global variables.

llvm-svn: 182637
2013-05-24 11:46:56 +00:00
Bill Wendling b7e7a38929 Don't override 'mode' and cleanup some variable names.
llvm-svn: 182599
2013-05-23 18:18:31 +00:00
Bill Wendling a600457cde Add 'mode' parameter when using 'O_CREAT'. Thanks to Evgeniy for pointing this out.
llvm-svn: 182598
2013-05-23 18:08:22 +00:00
Sergey Matveev a4a01975d5 [lsan] Add lit test support.
"check-lsan" now runs both the tests from lib/lsan/tests and any lit
tests found under lib/lsan/lit_tests.

llvm-svn: 182583
2013-05-23 12:58:56 +00:00
Alexander Potapenko 22e92fa954 [TSan] Try to fix the Go-TSan build.
llvm-svn: 182582
2013-05-23 12:54:35 +00:00
Evgeniy Stepanov bfbd37e6e7 [tsan] Remove -Wgnu from Makefile.old.
llvm-svn: 182580
2013-05-23 11:57:47 +00:00
Alexander Potapenko 6535f510a3 [ASan] Introduce SymbolizerPrepareForSandboxing(), which is a no-op on every platform except Linux (because we don't support sandboxing anywhere else yet)
On Linux we pre-cache the value of readlink("/proc/self/exe"), so that it can be later used when the sandbox has been turned on.

llvm-svn: 182579
2013-05-23 11:53:36 +00:00
Evgeniy Stepanov a343d1d881 [msan] Fix line >80 chars.
llvm-svn: 182578
2013-05-23 11:51:47 +00:00
Evgeniy Stepanov 5415c9c352 [sanitizer] Fix Windows build.
llvm-svn: 182576
2013-05-23 11:41:58 +00:00
Timur Iskhodzhanov e05f9ba956 [ASan] Rename a atomic_compare_exchange_strong parameter to avoid a compiler warning
llvm-svn: 182575
2013-05-23 11:40:51 +00:00
Evgeniy Stepanov b978627cb8 [sanitizer] Intercept getsockopt.
llvm-svn: 182574
2013-05-23 11:38:08 +00:00
Evgeniy Stepanov ab25369d04 [sanitizer] Interceptors for gethostbyname and friends.
llvm-svn: 182573
2013-05-23 11:10:23 +00:00
Sergey Matveev bb12f840b5 [lsan] Ensure lsan is initialized when interceptors are called.
Also remove unnecessary ifdefs.

llvm-svn: 182571
2013-05-23 10:24:44 +00:00
Alexander Potapenko fd7d9f45dd [ASan] Rename __asan_preinit to __local_asan_preinit to avoid warnings from the linker which is trying to export all the __asan_* symbols
llvm-svn: 182567
2013-05-23 09:15:20 +00:00
Bill Wendling 353fbd3516 Performance improvement.
Using fwrite and fread was very *very* slow. The resulting code was multiple
times slower than GCC's implementation of gcov. Replace the fwrite/fread system
with an mmap() version.

If the `.gcda' file doesn't exist, we (re)allocate a buffer that we write
into. That gets written to the `.gcda' file in one chunk. If the `.gcda' file
already exists, we simply mmap() the file, modify the mapped data, and use
msync() to write the contents out to disk. It's much easier than implementing
our own buffering scheme, and we don't have to use fwrite's and fread's
buffering.

For those who are numbers-oriented, here are some timings:

GCC Verison
-----------

`.gcda' files don't exist:  23s
`.gcda' files do exist:     14s

LLVM Version (before this change)
---------------------------------

`.gcda' files don't exist:  28s
`.gcda' files do exist:     28s

LLVM Version (with this change)
-------------------------------

`.gcda' files don't exist:  18s
`.gcda' files do exist:      4s

It's a win-win-win-win-lose-win-win scenario!

<rdar://problem/13466086>

llvm-svn: 182563
2013-05-23 07:18:59 +00:00
Evgeniy Stepanov d23422f025 [sanitizer] Fix Mac build one more time.
llvm-svn: 182481
2013-05-22 15:21:04 +00:00
Evgeniy Stepanov 093e499e27 [sanitizer] Fix Android build.
llvm-svn: 182479
2013-05-22 14:26:52 +00:00
Alexey Samsonov 58df72e0d2 Effectively revert r182453 - atomic.c may not be compiled if host compiler doesn't understand _Atomic
llvm-svn: 182478
2013-05-22 14:22:04 +00:00
Kostya Serebryany 6ca6ba2f2c [asan] fix the reported PCs for powerpc64
llvm-svn: 182477
2013-05-22 14:21:34 +00:00
Evgeniy Stepanov 97aea34b54 [msan] Intercept getsockname.
llvm-svn: 182475
2013-05-22 13:46:22 +00:00
Evgeniy Stepanov a8ea8a03fd [sanitizer] Fix Android build.
llvm-svn: 182473
2013-05-22 13:38:02 +00:00
Alexey Samsonov 49eb5700e2 Revert r182465 and add lsan-common library to makefile-based build
llvm-svn: 182470
2013-05-22 13:20:37 +00:00
Evgeniy Stepanov 02c9c8c9f7 [sanitizer] Fix Mac build.
llvm-svn: 182469
2013-05-22 13:07:23 +00:00
Evgeniy Stepanov bfd2122b20 [msan] getaddrinfo & nested interceptor support.
Multiple connected changes:
- Ignore reads from nested interceptors.
- Check shadow on reads from common interceptors.
- getaddrinfo interceptor.

llvm-svn: 182466
2013-05-22 12:50:26 +00:00
Alexey Samsonov 155dd46e04 [ASan] Temporary remove leak checking from ASan, while we don't have makefile-based build for LSan
llvm-svn: 182465
2013-05-22 12:44:57 +00:00
Kostya Serebryany 15fd53fa39 [asan] enhance stack-overflow.cc test: check that the location frame is properly symbolized
llvm-svn: 182463
2013-05-22 11:00:56 +00:00
Kostya Serebryany b93ae15205 [asan] attempting to fix the debian bot (on ubuntu the test builds; on debian it complains that _SC_PAGESIZE is unknown)
llvm-svn: 182462
2013-05-22 10:38:51 +00:00
Kostya Serebryany 62debd6d6a [asan] fix dlclose-test to work with non-4K pages. Properly disable interface_symbols_linux on non-x86
llvm-svn: 182461
2013-05-22 10:20:10 +00:00
Kostya Serebryany 8410a867eb [asan] workaround for asan bug 189 (swapcontext followed by throw gets OOM kill). Also, disable swapcontext_test on non-x86. Fix lint
llvm-svn: 182456
2013-05-22 08:54:30 +00:00
Alexey Samsonov 57cbb6c6cc Add atomic.c to CMake build of compiler-rt to match r182420
llvm-svn: 182453
2013-05-22 06:46:07 +00:00
Nick Kledzik 69e25c45e4 <rdar://problem/13806954> enable __atomic_* functions for Darwin
llvm-svn: 182435
2013-05-21 23:02:04 +00:00
Daniel Dunbar eaa153bdad Add atomic.c back to the builtins module sources lists (for Makefile build).
llvm-svn: 182420
2013-05-21 20:40:36 +00:00
Sergey Matveev 20ccf95f80 [lsan] Invoke leak detection with atexit().
Keeps it consistent between ASan and LSan.

llvm-svn: 182399
2013-05-21 17:56:45 +00:00
Sergey Matveev 17f5705d3c [asan] Do not invoke LSan hooks unless CAN_SANITIZE_LEAKS.
llvm-svn: 182389
2013-05-21 15:35:34 +00:00
Sergey Matveev 8c235f40d7 [asan] LSan hooks in asan_rtl.
llvm-svn: 182384
2013-05-21 14:15:35 +00:00
Sergey Matveev 620744556a [lsan] Change CMakeLists to build the common LSan module for ASan.
Also, define CAN_SANITIZE_LEAKS.

llvm-svn: 182383
2013-05-21 14:12:11 +00:00
Alexey Samsonov b99085b0b8 [MSan] Add empty default blacklist for MSan
llvm-svn: 182382
2013-05-21 13:55:56 +00:00
Alexey Samsonov e838135b6c [ASan] create default (empty) ASan blacklist file in resource directory
llvm-svn: 182380
2013-05-21 13:48:27 +00:00
Sergey Matveev 7159b2a382 [asan] LSan hooks in asan_allocator2.cc
llvm-svn: 182379
2013-05-21 13:46:41 +00:00
Sergey Matveev 65dd62abe5 [asan] LSan hooks in asan_thread.cc
llvm-svn: 182378
2013-05-21 13:40:13 +00:00
Sergey Matveev aa0b45a094 [lsan] LSan in LD_PRELOAD library form.
llvm-svn: 182376
2013-05-21 12:49:33 +00:00
Alexey Samsonov 73565f7f5d [Sanitizer] Print verbose warning if symbolizer can't read /proc/self/exe for some reason
llvm-svn: 182374
2013-05-21 12:22:36 +00:00
Peter Collingbourne c787d42f40 [nolibc] Move symbolizer to RTSanitizerCommonLibc, and make it optional using a weak symbol.
llvm-svn: 182372
2013-05-21 12:08:37 +00:00
Peter Collingbourne fa8aa4105c [nolibc] Move stoptheworld to RTSanitizerCommonLibc.
llvm-svn: 182369
2013-05-21 11:38:39 +00:00
Peter Collingbourne 8575195772 [nolibc] Move libc-dependent sanitizer_posix.cc code to sanitizer_posix_libcdep.cc.
llvm-svn: 182366
2013-05-21 10:27:07 +00:00
Alexey Samsonov 3677b18388 [ASan] Mark init-order test as XFAIL on Darwin
llvm-svn: 182365
2013-05-21 10:11:17 +00:00
Alexey Samsonov af456d0c40 [ASan] Don't run fast unwinder tests on 32-bit Linux as fast unwinder may be unexpectedly smart on some hosts
llvm-svn: 182363
2013-05-21 09:35:48 +00:00
Evgeniy Stepanov 4059d778d1 [sanitizer] Enable pthread_getschedparam interceptor on Android.
llvm-svn: 182361
2013-05-21 09:01:23 +00:00
Alexey Samsonov 1c26f007ed [ASan] Mark some tests as working only on x86_64 and i386 arches
llvm-svn: 182360
2013-05-21 09:01:13 +00:00
Evgeniy Stepanov 1d2f22825d [msan] Replace GetArgv hack with something that is slightly better.
llvm-svn: 182359
2013-05-21 08:56:22 +00:00
Alexey Samsonov 4ca93997f7 Add lit config feature <target>-supported-target to mark target-specific tests
llvm-svn: 182355
2013-05-21 08:22:03 +00:00
Dmitry Vyukov 536bff3396 tsan: detect when a thread ends with ignores enabled
llvm-svn: 182354
2013-05-21 08:12:35 +00:00
Evgeniy Stepanov 970be35808 [sanitizer] Intercept pthread_getschedparam.
llvm-svn: 182353
2013-05-21 08:12:08 +00:00
Kostya Serebryany b1333fe831 [sanitizer] fix asan on the platforms where the page size is not a compile-time constant (or at least where EXEC_PAGESIZE may not be trustworthy), e.g. powerpc64.
llvm-svn: 182351
2013-05-21 06:15:50 +00:00
Peter Collingbourne b69b8a4a8f [nolibc] Move GetPageSize to the individual platforms.
GetPageSize wraps sysconf(_SC_PAGESIZE) on POSIX platforms, but
sysconf resides in libc.  To make this libc-independent on Linux,
move the wrapper to sanitizer_mac.cc and return the Linux-specific
constant EXEC_PAGESIZE in the sanitizer_linux.cc implementation.

llvm-svn: 182303
2013-05-20 17:05:29 +00:00
Peter Collingbourne 0c8df4e1d8 [nolibc] Move libc-dependent sanitizer_linux.cc code to sanitizer_linux_libcdep.cc.
llvm-svn: 182292
2013-05-20 15:57:44 +00:00
Peter Collingbourne d5169edc36 [nolibc] Make GetArgsAndEnv libc-independent.
__libc_stack_end is made into a weak symbol if possible.  If libc is
not linked, read args and environment from /proc.

llvm-svn: 182276
2013-05-20 14:25:32 +00:00
Alexey Samsonov cbbdfc50ee Build LSan on x86_64 only if this target is supported
llvm-svn: 182272
2013-05-20 14:16:45 +00:00
Sergey Matveev 6dd91e475a [lsan] Fix r182256.
Add missing call to GetUserBegin().

llvm-svn: 182267
2013-05-20 14:04:56 +00:00
Alexander Potapenko a15d49cc1f [libsanitizer] Introduce INTERCEPTOR_WITH_SUFFIX which is to be used for appending the __DARWIN_ALIAS() version suffixes to function names on Darwin.
This should fix asan/lit_tests/wait.cc under ASan.

llvm-svn: 182259
2013-05-20 13:32:35 +00:00
Sergey Matveev bcfd838bcb [lsan] GetUserBegin() in LSan.
Separate the notions of user-visible chunk and allocator chunk, to facilitate
ASan integration.

llvm-svn: 182256
2013-05-20 13:08:23 +00:00
Timur Iskhodzhanov 67c918a424 Fix realloc'ing freed/invalid pointers
See https://code.google.com/p/address-sanitizer/issues/detail?id=187 for the details

llvm-svn: 182255
2013-05-20 13:05:58 +00:00
Sergey Matveev 6a6c5b6dee [asan] Modify ASan metadata atomically.
We need this to avoid races when ASan and LSan are used together.

llvm-svn: 182252
2013-05-20 11:25:18 +00:00
Sergey Matveev 3c20829559 [lsan] CMakeLists and lit test configs for LSan.
llvm-svn: 182251
2013-05-20 11:13:33 +00:00
Sergey Matveev 48c1d1acad [lsan] Tests for LeakSanitizer.
llvm-svn: 182250
2013-05-20 11:09:27 +00:00
Sergey Matveev b5483be858 [lsan] Common leak checking module.
Leak checking functionality which will be shared between
LSan/ASan/MSan.

llvm-svn: 182249
2013-05-20 11:06:50 +00:00
Sergey Matveev 3d97cdd140 [lsan] Standalone LSan initialization.
llvm-svn: 182248
2013-05-20 11:04:43 +00:00
Sergey Matveev a5f9691dfb [lsan] Interceptors for standalone LSan.
llvm-svn: 182247
2013-05-20 11:01:40 +00:00
Sergey Matveev c7d003ec43 [lsan] Thread registry for standalone LSan.
llvm-svn: 182246
2013-05-20 10:57:53 +00:00
Sergey Matveev 866abfb3fe [lsan] Allocator for standalone LSan.
This is the first in a series of CLs implementing LeakSanitizer.
http://clang.llvm.org/docs/LeakSanitizer.html

llvm-svn: 182245
2013-05-20 10:54:00 +00:00
Timur Iskhodzhanov 667cae7b69 [ASan] Remove an unused ChunkBase field
Also fix wrong alignment maths and an outdated comment

llvm-svn: 182238
2013-05-20 08:20:17 +00:00
Kostya Serebryany 3469375e4f [sanitizer] factor out ByteMap from SizeClassAllocator32 so that it can be later replaced with a more memory-efficient implementation on 64-bit.
llvm-svn: 182234
2013-05-20 07:29:21 +00:00
Richard Smith 73241096f7 Avoid rebuilding the RTSanitizerCommon objects when building clang_rt.san.
llvm-svn: 182218
2013-05-19 19:53:01 +00:00
Timur Iskhodzhanov 836a4f3643 Replace CHECK(a == b); with CHECK_EQ(a, b); throughout asan_allocator2.cc
llvm-svn: 182198
2013-05-18 18:27:33 +00:00
David Blaikie 97c3018aac Fix the UBSan CMake build broken in r182118
llvm-svn: 182177
2013-05-17 23:57:24 +00:00
Peter Collingbourne ffaf2eac4d [nolibc] Move all platforms to internal_getpid.
Before, we had an unused internal_getpid function for Linux, and a
platform-independent GetPid function.  To make the naming conventions
consistent for syscall-like functions, the GetPid syscall wrapper
in sanitizer_posix.cc is moved to sanitizer_mac.cc, and GetPid is
renamed to internal_getpid, bringing the Linux variant into use.

llvm-svn: 182132
2013-05-17 16:56:53 +00:00
Peter Collingbourne 6d4a7d3723 [nolibc] Begin moving sanitizer_common's libc-dependent code to a separate library
Introduce a new object library, RTSanitizerCommonLibc, which will contain
the subset of sanitizer_common with libc dependencies. RTSanitizerCommon
contains the remainder of sanitizer_common, and is intended to have no
libc dependencies. Begin moving code to RTSanitizerCommonLibc, starting
with sanitizer_common.cc, whose libc-dependent portion is moved to
sanitizer_common_libcdep.cc, the first member of the new library.

This split affects the CMake build only.  The makefile build continues
to produce the full sanitizer_common library.

llvm-svn: 182118
2013-05-17 16:17:19 +00:00
Evgeniy Stepanov bec53faad0 [sanitizer] Fix build with Android NDK r8e.
llvm-svn: 182110
2013-05-17 15:22:32 +00:00
Alexander Potapenko dd3c583211 [ASan] Make the regression test for time(NULL) Linux-specific, as it crashes on Darwin (and the problem used to occur on Linux).
Do not use zero-based shadow for the time() test.

llvm-svn: 182107
2013-05-17 15:11:26 +00:00
Evgeniy Stepanov 44ff0eb4b9 [sanitizer] Fix gcc build.
llvm-svn: 182094
2013-05-17 13:30:48 +00:00
Evgeniy Stepanov ff6728f2f8 [msan] Unpoison dlpi_name in dl_iterate_phdr interceptor.
llvm-svn: 182093
2013-05-17 12:51:13 +00:00
Dmitry Vyukov 9ff1023816 tsan: remove "printing report from signal handler. Can crash or hang" output
it was added to debug mysterious hangs, but it does not seem to happen anymore
now it only clutter up output

llvm-svn: 182089
2013-05-17 12:05:44 +00:00
Dmitry Vyukov c9af818515 tsan: introduce recursive mutex lock/unlock java interface
this is required to handle Object.Wait()

llvm-svn: 182088
2013-05-17 12:03:46 +00:00
Dmitry Vyukov 69c544d857 tsan: comment out debug output in test
llvm-svn: 182087
2013-05-17 11:54:37 +00:00
Alexander Potapenko 00b44ba778 [ASan] Fix allow_user_segv.cc on Darwin (32-bit build required a SIGBUS handler instead of the SIGSEGV one)
llvm-svn: 182080
2013-05-17 08:08:50 +00:00
Alexander Potapenko 12d09f3a3d [ASan] Fix init-order-dlopen.cc to pass under Mac OS.
llvm-svn: 182010
2013-05-16 14:51:01 +00:00
Alexander Potapenko 3917fe0d94 [ASan] Fix interface_symbols_darwin to pass a correct flag to nm.
llvm-svn: 182008
2013-05-16 13:49:12 +00:00
Kostya Serebryany 21cbaee6a9 [sanitizer] fix gcc build
llvm-svn: 182006
2013-05-16 13:24:31 +00:00
Kostya Serebryany aaf7275677 [asan] symbolize when possible, even if ASAN_SYMBOLIZER_PATH is not provided. On Linux this will use dl_iterate_phdr instead of /proc/self/maps, even if the symbolizer is not installed
llvm-svn: 182005
2013-05-16 13:04:29 +00:00
Evgeniy Stepanov 87c6ec7cfe [msan] Intercept dl_iterate_phdr.
llvm-svn: 182004
2013-05-16 13:00:25 +00:00
Sergey Matveev efb6172cb3 [sanitizer] Fix the region overflow condition in SanitizerAllocator64::PopulateFreeList().
llvm-svn: 182002
2013-05-16 12:58:34 +00:00
Kostya Serebryany 19eb46f4ca [sanitizer] fix a gcc warning
llvm-svn: 181992
2013-05-16 08:03:26 +00:00
Kostya Serebryany b7ca536888 [asan] fix ShadowGapTest on PowerPC64
llvm-svn: 181991
2013-05-16 07:54:28 +00:00
Kostya Serebryany a551aaa944 [sanitizer] fix the GetBlockBegin overflow bug while preserving the performance optimization (use 32-bit division when possible). Improve the benchmarks that checks for performance of GetBlockBegin/GetMetaData
llvm-svn: 181989
2013-05-16 07:11:16 +00:00
Kostya Serebryany ad9971d793 [sanitizer] added a test for a bug in allocator discovered by Sergey Matveev (uint32 overflow in GetBlockBegin)
llvm-svn: 181984
2013-05-16 05:22:50 +00:00
Bill Wendling c054086630 Try to improve performance by using a read/write buffer instead of I/O.
The calls to fwrite/fread can be very expensive. GCC avoids this by using a
buffer to read and write from the file, thus limiting the number of fwrite/fread
calls.

<rdar://problem/13466086>

llvm-svn: 181924
2013-05-15 21:31:22 +00:00
Kostya Serebryany 2b824f3575 [asan] disable BuiltinLongJmpTest on PowerPC
llvm-svn: 181890
2013-05-15 15:01:14 +00:00
Kostya Serebryany 2b42716213 [asan] fix powerpc build and one test; fix lint
llvm-svn: 181881
2013-05-15 12:36:29 +00:00
Sergey Matveev 2387687788 [sanitizer] Fix Android build.
llvm-svn: 181796
2013-05-14 15:22:39 +00:00
Sergey Matveev 61101ba419 [sanitizer] Fixed a bug in GetListOfModules.
llvm-svn: 181793
2013-05-14 14:48:58 +00:00
Sergey Matveev 4b603e5c50 [sanitizer] Filtering in GetListOfModules.
llvm-svn: 181791
2013-05-14 14:04:06 +00:00
Evgeniy Stepanov f1efb256f6 Add sanitizer syscall hooks to the tool's export lists.
llvm-svn: 181790
2013-05-14 13:55:21 +00:00
Sergey Matveev af05543c86 [sanitizer] LibraryNameIs in sanitizer_linux
llvm-svn: 181787
2013-05-14 13:24:46 +00:00
Sergey Matveev 14b56186ab [sanitizer] Minor fixes in sanitizer_common tests.
llvm-svn: 181786
2013-05-14 13:19:33 +00:00
Kostya Serebryany 9d987e34f7 [tsan] fix gcc build with -Wall
llvm-svn: 181763
2013-05-14 08:26:55 +00:00
Sergey Matveev d9da20f56f [sanitizer] Generic sorting in sanitizer_common.
llvm-svn: 181698
2013-05-13 11:58:48 +00:00
Sergey Matveev 37432e815e [sanitizer] Fix StopTheWorld build on non-Android ARM.
Original patch by Abdoulaye Walsimou Gaye.

llvm-svn: 181697
2013-05-13 10:35:20 +00:00
Peter Collingbourne 53caf563a9 Try to fix Windows build too
llvm-svn: 181457
2013-05-08 18:15:01 +00:00
Peter Collingbourne 8e110ce57c Try to fix the mac buildbots
llvm-svn: 181440
2013-05-08 15:07:12 +00:00
Peter Collingbourne 6f4be19b57 [nolibc] Change internal syscall API to remove reliance on libc's errno.
This change moves to a model where the error value of a system call is
potentially contained in the return value itself rather than being
implicit in errno.  The helper function internal_iserror can be used
to extract the error value from a return value.  On platforms other
than Linux/x86_64 this still uses errno, but other platforms are free
to port their error handling to this new model.

Differential Revision: http://llvm-reviews.chandlerc.com/D756

llvm-svn: 181436
2013-05-08 14:43:49 +00:00
Sergey Matveev ffe38d267c Quick fix for ASan test build on Android.
llvm-svn: 181429
2013-05-08 14:11:12 +00:00
Sergey Matveev 0d8cc4a2d2 [sanitizer] Fix build breakage in Go TSan.
llvm-svn: 181428
2013-05-08 13:59:30 +00:00
Sergey Matveev af179b8d63 [sanitizer] Move GetStackTrace from ASan to sanitizer_common.
llvm-svn: 181424
2013-05-08 12:45:55 +00:00
Sergey Matveev 3704453368 [sanitizer] Fixed InitTlsSize for Android.
llvm-svn: 181330
2013-05-07 16:29:26 +00:00
Sergey Matveev 88d0c664ef [sanitizer] Fixed includes in sanitizer_linux.cc for Android.
llvm-svn: 181327
2013-05-07 15:38:53 +00:00
Sergey Matveev 954c6ef10f [sanitizer] Move GetThreadStackAndTls from TSan to sanitizer_common.
Move this function to sanitizer_common because LSan uses it too. Also, fix a bug
where the TLS range reported for main thread was off by the size of the thread
descriptor from libc (TSan doesn't care much, but for LSan it's critical).

llvm-svn: 181322
2013-05-07 14:41:43 +00:00
Evgeniy Stepanov 517118e6b4 [sanitizer] Sanitizer __internal_*stat interface.
With this change, __internal_*stat always expect a "struct stat *" argument.
This avoids stat/stat64 caller-side confusion (sanitizer_common tests already
made this mistake), and allows the use of __internal_fstat() as a drop-in
replacement for libc's fstat().

llvm-svn: 181311
2013-05-07 12:47:04 +00:00
Sergey Matveev 6eff11e714 [msan] Common flags in MSan.
llvm-svn: 181194
2013-05-06 13:15:14 +00:00
Sergey Matveev 0c8ed9ce44 [asan] Common flags in ASan.
Some flags that are common to ASan/MSan/TSan/LSan have been moved to
sanitizer_common.

llvm-svn: 181193
2013-05-06 11:27:58 +00:00
Bill Wendling e575be4c0e I was wrong in my testing.
There isn't a speedup when using unbuffered I/O. It slows it down in fact.

llvm-svn: 181060
2013-05-03 22:06:41 +00:00
Bill Wendling 6ce98c49f4 Use unbuffered I/O. This reduces the runtime by about half. Our implementation is now only about 5 times slower than gcc's.
llvm-svn: 180980
2013-05-03 00:25:49 +00:00
Dmitry Vyukov 93b2cba03b asan: fix windows build
llvm-svn: 180788
2013-04-30 13:30:29 +00:00
Dmitry Vyukov db7d9e5db4 tsan: comment out debug output in test
llvm-svn: 180787
2013-04-30 13:09:31 +00:00
Dmitry Vyukov e8fa45a02c asan/tsan: fix printf(), on the second pass it prints garbage and crashes on random pointer dereference
llvm-svn: 180784
2013-04-30 12:27:48 +00:00
Dmitry Vyukov d0ac6c168b tsan: fix deadlock detector table (OK to lock sync var mutex during reporting)
llvm-svn: 180782
2013-04-30 12:00:40 +00:00
Dmitry Vyukov 56cf378071 tsan: reverse stack trace for failed CHECK's, this is how we print traces in other places
llvm-svn: 180781
2013-04-30 11:57:32 +00:00
Dmitry Vyukov 3f7bf08b12 tsan: add interface functions for unaligned access, e.g. __sanitizer_unaligned_load16
llvm-svn: 180780
2013-04-30 11:56:56 +00:00
Dmitry Vyukov 639ba01fc3 asna/tsan/msan: fix wait() interceptors to allow NULL arguments
llvm-svn: 180703
2013-04-29 09:04:24 +00:00
Sergey Matveev b2151b8200 Revert r180599 "[sanitizer] Clear LD_PRELOAD when forking an external symbolizer."
llvm-svn: 180602
2013-04-26 13:01:40 +00:00
Sergey Matveev 3c8fbe1013 [sanitizer] Clear LD_PRELOAD when forking an external symbolizer.
llvm-svn: 180599
2013-04-26 11:35:05 +00:00
Alexey Samsonov 5c38383205 [ASan] Add allow_user_segv_handler to let users override SEGV handler installed by ASan
llvm-svn: 180255
2013-04-25 10:52:15 +00:00
Dmitry Vyukov a05bbe1c9a tsan: add a test that used to crash, fixed by r180180.
llvm-svn: 180251
2013-04-25 06:58:43 +00:00
Dmitry Vyukov 368d97e33c tsan: fix stack traces for malloc and free
llvm-svn: 180184
2013-04-24 11:16:47 +00:00
Dmitry Vyukov 7a8535d2f2 tsan: run tests sequentially otherwise cmake says:
make[3]: make[3]: /bin/sh: ../../../../../bin/clang: Text file busy

llvm-svn: 180183
2013-04-24 11:07:25 +00:00
Dmitry Vyukov beaf786151 tsan: disable getpwuid_r() and glob64() interceptors under tsan, because they cause interceptor recursion if user intercepts fopen()
llvm-svn: 180182
2013-04-24 11:06:05 +00:00
Dmitry Vyukov 54d9c81082 tsan: fix crash when data race happens on out-of-bounds accesses.
llvm-svn: 180180
2013-04-24 09:20:25 +00:00
Dmitry Vyukov c63d73e59d tsan: support heap starting at 0x04c0 (used in some custom deplyments)
llvm-svn: 180116
2013-04-23 15:59:56 +00:00
Dmitry Vyukov 43cf90f4d1 tsan: update Go memory mapping, Go now uses 0x00c0 heap base
llvm-svn: 180113
2013-04-23 15:24:26 +00:00
Evgeniy Stepanov 44b75efab4 [sanitizer] Intercept inet_pton and inet_ntop.
llvm-svn: 180107
2013-04-23 14:05:15 +00:00
Alexey Samsonov bcd32a9525 [ASan] Disable strict-init-order checker once we have more than one thread, as this mode is thread-hostile
llvm-svn: 180106
2013-04-23 13:57:35 +00:00
Alexey Samsonov 34093f0de8 [MSan] Make a few interface functions accept 'const void *' instead of 'void*'
llvm-svn: 180102
2013-04-23 13:34:19 +00:00
Evgeniy Stepanov 455abf4872 [msan] Unpoison the result of posix_memalign.
llvm-svn: 180101
2013-04-23 13:27:36 +00:00
Alexey Samsonov f36c5a8431 Revert r180082 and add a test for SetEnv function
llvm-svn: 180098
2013-04-23 12:49:12 +00:00
Alexander Potapenko 262eb01bbf [ASan] Make wait.cc more Darwin-compatible: fix the header name and the CHECK patterns.
llvm-svn: 180097
2013-04-23 12:36:37 +00:00
Alexander Potapenko 15aa1cd1ac [ASan] Disable AddressSanitizer.AllocDeallocMismatch on Darwin.
See https://code.google.com/p/address-sanitizer/issues/detail?id=131.

llvm-svn: 180093
2013-04-23 12:14:55 +00:00
Evgeniy Stepanov 3076ba0a08 [sanitizer] Intercept getgrnam{_r}, getgrgid{_r}.
llvm-svn: 180091
2013-04-23 12:01:20 +00:00
Evgeniy Stepanov 0cd7cf8217 [msan] Allow clock_getres(, 0).
llvm-svn: 180090
2013-04-23 11:48:31 +00:00
Alexey Samsonov e7540e3561 [Sanitizer] Delete unused function
llvm-svn: 180082
2013-04-23 08:18:09 +00:00
Evgeniy Stepanov 1a2262e1c9 [sanitizer] Fix lint.
llvm-svn: 180012
2013-04-22 13:28:26 +00:00
Bill Wendling 9a9141aed5 Improve performance of file I/O.
The fread / fwrite calls were happening for each timer. However, that could be
pretty expensive for a large number of timers. Instead, read and write the
timers in one call.

This gives ~10% speedup in compilation time.

llvm-svn: 179990
2013-04-22 03:36:22 +00:00
Alexey Samsonov e7ea8cfb49 Fixup for r179843: add missing header
llvm-svn: 179844
2013-04-19 08:49:05 +00:00
Alexey Samsonov dcf0ade114 [ASan] Make init-order checker allow access to already initialized globals.
This change adds ASan runtime option "strict-init-order" (off by default)
that makes init-order checker bark if global initializer accesses any global from different
translation unit (even if the latter is already initialized). strict init-order checking
doesn't play well with, e.g. LLVM registration machineries, and causes issue 
https://code.google.com/p/address-sanitizer/issues/detail?id=178.

llvm-svn: 179843
2013-04-19 08:35:16 +00:00
Alexey Samsonov 6021e94774 [TSan] Allocate fd table in user heap instead of using internal allocator. We need this to catch races on fds.
llvm-svn: 179841
2013-04-19 08:04:46 +00:00
Alexey Samsonov 1a6cfb46e5 [Sanitizer] Rework r176802: share code between Printf and Report and simplify it a bit
llvm-svn: 179755
2013-04-18 13:18:23 +00:00
Alexey Samsonov d1efa5ef96 [Sanitizer] Don't die in symbolizer if it can't read /proc/self/exe link
llvm-svn: 179754
2013-04-18 12:46:33 +00:00
Andy Gibbs f6edda8c30 Wrap macro invocations in braces to supress 'suggest braces around empty body in an ‘if’ statement' warning.
llvm-svn: 179597
2013-04-16 15:18:55 +00:00
Sergey Matveev 0136943e03 [asan] Fix spelling in asan_rtl.cc Test commit.
Reviewers: kcc, glider, samsonov

Reviewed By: glider

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D676

llvm-svn: 179595
2013-04-16 14:58:45 +00:00
Evgeniy Stepanov d1dae90bf2 [msan] Fix gcc build of msan_test.
llvm-svn: 179594
2013-04-16 14:09:47 +00:00
Evgeniy Stepanov 9b59a39f42 [sanitizer] Implement wait4 and waitpid syscall hooks.
llvm-svn: 179592
2013-04-16 13:06:20 +00:00
Evgeniy Stepanov b0d786798c [msan] Fix sigaction test.
Restore SIGPROF handler to the original state after the test.

llvm-svn: 179524
2013-04-15 13:35:05 +00:00
Evgeniy Stepanov 7332acac4c [msan] Really disable replacement new and delete.
llvm-svn: 179522
2013-04-15 12:41:52 +00:00
Evgeniy Stepanov 755eb32a39 [sanitizer] Add syscall handlers to ASan and TSan runtimes.
ASan checks addressability of syscall arguments. TSan does nothing for now.

llvm-svn: 179380
2013-04-12 14:57:03 +00:00
Evgeniy Stepanov 9fb82357dc [sanitizer] More syscall handler placeholders.
This time it's the full list scavenged from syscalls.h
Fixed return value type.

llvm-svn: 179378
2013-04-12 14:06:40 +00:00
Timur Iskhodzhanov 664ec5d7a8 Finally drop the 'static' from INLINE and ALWAYS_INLINE
The ALWAYS_INLINE doesn't have static on POSIX anyways since r178341; the INLINE is only used in .h files, so shouldn't have been 'static' in the first place

llvm-svn: 179371
2013-04-12 09:37:20 +00:00
Alexey Samsonov e48866969e [MSan] Demangle function name in description of stack origin
llvm-svn: 179368
2013-04-12 07:27:30 +00:00
Alexey Samsonov 1a345ad502 [MSan] don't build tests with -fPIE/-pie, as these flags are implied by -fsanitize=memory now
llvm-svn: 179366
2013-04-12 07:14:04 +00:00
Alexey Samsonov 0d725b1408 [TSan] remove -fPIE -pie from TSan lit tests to check that -fsanitize=thread implies them now
llvm-svn: 179365
2013-04-12 07:11:00 +00:00
Kostya Serebryany fd27b83ef2 [asan] inline flags(), up to 1% perf gain on malloc-intensive code
llvm-svn: 179307
2013-04-11 18:36:04 +00:00
Kostya Serebryany bb68f2cd65 [asan] make heavy_uar_test even heavier
llvm-svn: 179306
2013-04-11 18:27:02 +00:00
Alexey Samsonov 9f3938e271 Explicitly list all sanitizer headers in CMake build rules. Make sure sanitizer lit_tests depend on fresh headers.
llvm-svn: 179293
2013-04-11 15:49:52 +00:00
Kostya Serebryany 1c77de3aeb [asan] improve the UAR reporting (try harder to find the correct frame), try to make the test more stable
llvm-svn: 179292
2013-04-11 15:35:40 +00:00
Evgeniy Stepanov f5523116e9 [sanitizer] Syscall hooks.
Pre- and post- hooks for linux syscalls. Not wired into anything, but exposed
through public interface.

llvm-svn: 179288
2013-04-11 14:37:04 +00:00
Kostya Serebryany 18f0820552 [asan] make heavy_uar_test a bit more heavy and fix he fake stack to pass this test
llvm-svn: 179286
2013-04-11 14:07:02 +00:00
Alexey Samsonov a672ba6e8f [ASan] test source-based init-order blacklisting added in r179280
llvm-svn: 179281
2013-04-11 13:21:41 +00:00
Kostya Serebryany 3fec2f534a [asan] fix use-after-return functionality (PR15672) and enable the corresponding test. We still don't guarantee anything with regard to use-after-return checking
llvm-svn: 179278
2013-04-11 12:49:38 +00:00
Alexey Samsonov 46cc45a291 [ASan] Symbolize correct address when printint error summary
llvm-svn: 179274
2013-04-11 11:45:04 +00:00
Kostya Serebryany 4e0a33c8be [asan] move fake stack into a separate .h file; actually disable a failing test
llvm-svn: 179273
2013-04-11 11:39:19 +00:00
Kostya Serebryany fd7f924016 [asan] add heavy_uar_test (disabled); fix lint
llvm-svn: 179271
2013-04-11 11:29:07 +00:00
Alexander Potapenko 227e22de5a [ASan] Do not check the shadow of NULL argument in the time() interceptor.
Add a test for time().

llvm-svn: 179177
2013-04-10 15:13:00 +00:00
Kostya Serebryany 92684efb1d [asan] implement callbacks for unaligned loads/stores
Reviewers: samsonov

Reviewed By: samsonov

CC: samsonov, llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D652

llvm-svn: 179175
2013-04-10 13:59:32 +00:00
Alexey Samsonov c0443c5d25 [ASan] fix a typo in legend in error report
llvm-svn: 179161
2013-04-10 07:00:25 +00:00
Evgeniy Stepanov 460067823b [sanitizer] Interceptors for wait*.
llvm-svn: 179096
2013-04-09 14:34:59 +00:00
Evgeniy Stepanov 69967c2835 [msan] Intercept glob() with tests.
llvm-svn: 179091
2013-04-09 11:35:13 +00:00
Alexey Samsonov 7ad129277e [Sanitizer] fix TSan tests: remove global ctor from sanitizer_common, run load_shared_lib test only in lit
llvm-svn: 179090
2013-04-09 07:46:20 +00:00
Kostya Serebryany 9d28efc1ad [asan] relax Linux/zero-base-shadow.cc to make it pass on newer Ubuntu; fix lint
llvm-svn: 179088
2013-04-09 07:08:05 +00:00
Chandler Carruth 2b3c00eec7 Revert r179012: "[msan] Intercept glob()."
This was committed without tests and contains obvious bugs. That's not
acceptable. It broke address sanitizer for most programs using glob(3).

llvm-svn: 179054
2013-04-08 20:59:44 +00:00
Alexander Potapenko 32efd25b93 [libsymbolized] If we can't find an address in the list of shared libraries, try to reload it.
Add a regression test for the case where such behavior helps TSan:
  1. race is reported in the main module
  2. new shared library is loaded
  3. race is reported in the shared library

llvm-svn: 179032
2013-04-08 17:46:34 +00:00
Evgeniy Stepanov b4eac2f810 [msan] Interceptors for pipe2 and socketpair.
llvm-svn: 179022
2013-04-08 13:45:12 +00:00
Evgeniy Stepanov 8cd707a1a6 [msan] Intercept glob().
llvm-svn: 179012
2013-04-08 09:03:00 +00:00
Evgeniy Stepanov e20c780aaf [tsan] Fix build.
llvm-svn: 179008
2013-04-08 08:46:25 +00:00
Kostya Serebryany e6459977b8 [sanitizer] Fix boundary condition in LargeMmapAllocator::GetBlockBegin. Patch by Sergey Matveev
llvm-svn: 179007
2013-04-08 08:43:22 +00:00
Evgeniy Stepanov 7ba7207f1d [msan] Intercept time().
llvm-svn: 179002
2013-04-08 08:25:22 +00:00
Kostya Serebryany 228ecf46ab [asan] make huge_negative_hea_oob more meaningful
llvm-svn: 178876
2013-04-05 15:16:48 +00:00
Kostya Serebryany f5407e8d8f [asan] add a test for huge left oob
llvm-svn: 178874
2013-04-05 15:13:23 +00:00
Kostya Serebryany 5b4267f7e7 [sanitizer] found a bug by code inspection: CHECK(a=b) instead of CHECK(a==b). Was puzzled why lint did not catch it. Turns out this check was disabled for asan source. fix all cases and enable the check
llvm-svn: 178872
2013-04-05 14:40:25 +00:00
Evgeniy Stepanov e7a7a9b972 [msan] Fix sigaction interceptor.
llvm-svn: 178868
2013-04-05 12:58:07 +00:00
Evgeniy Stepanov c7af878a01 [msan] Conditionally disable new() and delete() wrappers.
To be used with static libstdc++.

llvm-svn: 178866
2013-04-05 12:03:47 +00:00
Evgeniy Stepanov 7948c648bf [msan] A runtime option to disable wrapping of signal handlers.
llvm-svn: 178865
2013-04-05 11:59:16 +00:00
Alexey Samsonov 2a4668557f [Sanitizer] enquote the module name when passing it to external symbolizer
llvm-svn: 178864
2013-04-05 11:54:23 +00:00
Alexey Samsonov 5afe6aa141 [ASan] init-order checker tests: move constexpr test that requires -std=c++11 to a separate test case. Check that structs with no ctor but non-trivial dtor are ignored.
llvm-svn: 178857
2013-04-05 07:51:49 +00:00
Alexey Samsonov 46b8665ea4 Remove InternalAlloc/InternalFree calls from StopTheWorld. Patch by Sergey Matveev.
llvm-svn: 178855
2013-04-05 07:41:21 +00:00
Alexey Samsonov 734aab4066 [Sanitizer] Use a common mutex to prevent mixing reports from different sanitizers. This fixes PR15516
llvm-svn: 178853
2013-04-05 07:30:29 +00:00
Alexey Samsonov 70a9c263d4 [TSan] Make path to FileCheck configurable
llvm-svn: 178760
2013-04-04 12:18:12 +00:00
Kostya Serebryany eef8bd4355 [asan] nuke the old unused allocator code
llvm-svn: 178758
2013-04-04 11:32:49 +00:00
Kostya Serebryany 13b07733b1 [asan] fill first 4K of malloc-ed memory with garbage, implement flags max_malloc_fill_size and malloc_fill_byte
llvm-svn: 178757
2013-04-04 11:17:14 +00:00
Evgeniy Stepanov 24b2169e07 [sanitizer] Android lacks ucontext_t definition.
llvm-svn: 178756
2013-04-04 09:21:48 +00:00
Evgeniy Stepanov 7b0e132551 [sanitizer] Use ucontext_t instead of "struct ucontext".
Fixes Mac build.

llvm-svn: 178755
2013-04-04 09:03:56 +00:00
Evgeniy Stepanov 1f8b3538b4 [msan] Unpoison siginfo_t and ucontext_t in signal handlers.
Add wrappers for all user signal handlers to unpoison the handler's arguments.

llvm-svn: 178754
2013-04-04 08:22:52 +00:00
Kostya Serebryany c3525ce6ac [sanitizer] while doing fast unwinding make sure that the frame pointer is aligned; fix lint
llvm-svn: 178747
2013-04-04 06:52:40 +00:00
Alexey Samsonov 87c2a87b50 [Sanitizer] Fix OnPrint weak hook. Disable weak hooks for gotsan.
llvm-svn: 178640
2013-04-03 13:22:54 +00:00
Alexey Samsonov 60adc1781e [Sanitizer] Be more careful with arch-specific defines in StopTheWorld code
llvm-svn: 178630
2013-04-03 08:26:03 +00:00
Alexey Samsonov 21cb74318c [ASan] Kill the remainders of platform defines in favor of SANITIZER_ defines
llvm-svn: 178629
2013-04-03 07:29:53 +00:00
Alexey Samsonov a0e28a7aaa [Sanitizer] Kill the remainders of platform defines in favor of SANITIZER_ defines
llvm-svn: 178627
2013-04-03 07:24:35 +00:00
Alexey Samsonov 8d18cc3096 [Sanitizer] Fix StopTheWorld includes on Android. Patch by Sergey Matveev.
llvm-svn: 178625
2013-04-03 07:06:10 +00:00
Alexander Potapenko bbfc722e46 [TSan] Add the WTFAnnotateBenignRaceSized implementation and a test for
WTFAnnotateBenignRaceSized and AnnotateBenignRaceSized.

llvm-svn: 178534
2013-04-02 11:21:53 +00:00
Evgeniy Stepanov f8213b4eb3 [sanitizer] More interceptors.
getpwnam, getpwuid, getpwnam_r, getpwuid_r, clock_getres, clock_gettime,
clock_settime, getitimer, setitimer, sigaction (MSan).

llvm-svn: 178465
2013-04-01 14:47:21 +00:00
Alexander Potapenko 1d021bff28 [libsanitizer] Run the callback on a separate stack in StopTheWorld.
Currently the callback runs on the caller's stack. If this stack
contains values that have gone out of scope, and we are not super careful, those
values can propagate into global variables (the libc sigaction() in particular
has a side effect that can lead to this). This has caused false negatives in
leak checking code.

Changes: map a separate stack space for the tracer thread. Also, move some
globals into local scope (they had no business being global anyway).

Patch by Sergey Matveev (earthdok@google.com)

llvm-svn: 178464
2013-04-01 14:38:56 +00:00
Alexander Potapenko 401bed0b9a [libsanitizer] Added data() and capacity() getters to InternalVector.
Same interface as in STL. Needed for LSan.

Patch by Sergey Matveev (earthdok@google.com)

llvm-svn: 178463
2013-04-01 13:55:34 +00:00
Alexander Potapenko 9cc2e436bb [libsanitizer] Add register dumping support to SuspendedThreadsList.
An interface for obtaining register contexts from suspended threads. Tailored
for LSan use.

Patch by Sergey Matveev (earthdok@google.com)

llvm-svn: 178461
2013-04-01 13:36:42 +00:00
Alexey Samsonov e624795558 [ASan] More careful reports for globals that are ASCII strings
llvm-svn: 178458
2013-04-01 08:57:38 +00:00
Kostya Serebryany 91952cda76 [tsan] restore performance critical inlining in tsan: remove static from ALWAYS_INLINE, use ALWAYS_INLINE USED for critical functions.
llvm-svn: 178341
2013-03-29 09:44:16 +00:00
Alexander Potapenko b042555cd3 [TSan] Build TSan runtime with -fPIE.
This removes all register spills from the performance-critical __tsan_{read,write}{1,2,4,8} functions when the host compiler is GCC.

llvm-svn: 178340
2013-03-29 09:44:11 +00:00
Alexey Samsonov 703a9870a2 [Sanitizer] Follow-up for r178238 - replace DCHECKs with regular CHECKs
llvm-svn: 178336
2013-03-29 08:03:01 +00:00
Timur Iskhodzhanov 23411d9a95 Band-aid fix for the TSan RTL build
llvm-svn: 178298
2013-03-28 22:23:03 +00:00
Timur Iskhodzhanov e3164e9647 Add "static" to the Windows ALWAYS_INLINE macro (similar to what we do on POSIX)
llvm-svn: 178296
2013-03-28 22:07:28 +00:00
Timur Iskhodzhanov 07d06d7cf5 Remove all 'static' before ALWAYS_INLINE
llvm-svn: 178290
2013-03-28 21:16:09 +00:00
Timur Iskhodzhanov a6788325cf Make all the ALWAYS_INLINE users Windows-friendly; also, avoid ALWAYS_INLINE INLINE combinations
llvm-svn: 178266
2013-03-28 18:52:40 +00:00