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1326 Commits

Author SHA1 Message Date
Dmitry Vyukov 5864ac39ee tsan: do not use 64-bit atomics in allocator code 
64-bit atomics make porting of asan to 32-bits platforms problematic.

llvm-svn: 209744
 2014-05-28 15:22:12 +00:00
Timur Iskhodzhanov 82ee0433da [ASan/Win] Use clang rather than clang-cl by default for lit tests. Make Windows-only tests explicitly use clang-cl. 
Reviewed at http://reviews.llvm.org/D3893

llvm-svn: 209719
 2014-05-28 08:38:13 +00:00
Evgeniy Stepanov a00ff194b7 [asan] Add a few stubs to fix windows build. 
llvm-svn: 209717
 2014-05-28 08:26:24 +00:00
Evgeniy Stepanov 360c911872 [asan] Disable dlopen interceptor on Android. 
It can not work, as libdl is always first in the lookup order,
even ahead of LD_PRELOAD-ed libraries.

llvm-svn: 209657
 2014-05-27 14:14:03 +00:00
Evgeniy Stepanov 567e516015 [asancov] Write coverage directly to a memory-mapped file. 
This way does not require a __sanitizer_cov_dump() call. That's
important on Android, where apps can be killed at arbitrary time.

We write raw PCs to disk instead of module offsets; we also write
memory layout to a separate file. This increases dump size by the
factor of 2 on 64-bit systems.

llvm-svn: 209653
 2014-05-27 12:37:52 +00:00
Greg Fitzgerald 7b15cf8884 On AArch64, use clone() instead of fork() 
Patch by Gideon Billings.

Differential Revision: http://reviews.llvm.org/D3903

llvm-svn: 209641
 2014-05-26 23:44:55 +00:00
Sergey Matveev 2be4a28297 [sanitizer] Make stack traces from dlclose()'d modules more meaningful. 
Previously, they silently omitted PCs belonging to unknown modules. Now we print
(<unknown module>) instead.

llvm-svn: 209522
 2014-05-23 16:04:41 +00:00
Kostya Serebryany a72efdff9e [ubsan] handle long double in 32-bit mode; part of the patch by Marek Polacek 
llvm-svn: 209516
 2014-05-23 14:45:13 +00:00
Sergey Matveev 83f91e786c [sanitizer] Add __sanitizer_maybe_open_cov_file(). 
Summary: Add a new interface function required for coverage sandboxing support.
llvm-svn: 209298
 2014-05-21 13:43:52 +00:00
Evgeniy Stepanov f77f2ece71 [tsan] Fix gotsan build. 
llvm-svn: 209286
 2014-05-21 09:42:56 +00:00
Evgeniy Stepanov 208aae8ee0 [msan] Chained origins re-design. 
Generalize StackDepot and create a new specialized instance of it to
efficiently (i.e. without duplicating stack trace data) store the
origin history tree.

This reduces memory usage for chained origins roughly by an order of
magnitude.

Most importantly, this new design allows us to put two limits on
stored history data (exposed in MSAN_OPTIONS) that help avoid
exponential growth in used memory on certain workloads.

See comments in lib/msan/msan_origin.h for more details.

llvm-svn: 209284
 2014-05-21 09:02:13 +00:00
Kostya Serebryany b9aa538db1 [sanitizer] fix linux_dirent for SANITIZER_X32; based on patch by H.J. Lu 
llvm-svn: 209281
 2014-05-21 08:21:13 +00:00
Kostya Serebryany b4e24fccd1 [sanitizer] define SANITIZER_X32 and use it in ThreadDescriptorSize; partially based on patch by H.J. Lu 
llvm-svn: 209279
 2014-05-21 08:01:44 +00:00
Kostya Serebryany 84019ff7e5 Cast pointers to uptr when calling internal_syscall 
For Linux/x86-64, pointers passed to internal_syscall should be casted
to uptr first.  Otherwise, they won't be properly extended to 64-bit for
x32.
Patch by H.J. Lu

llvm-svn: 209278
 2014-05-21 07:49:03 +00:00
Kostya Serebryany 6c9eacb384 Use 64-bit pointer to unwind stack for x86-64 
X32 uses ILP32 data model in 64-bit hardware mode.  This patch always
uses 64-bit pointer to unwind stack for x86-64.
Patch by H.J. Lu

llvm-svn: 209277
 2014-05-21 07:34:03 +00:00
Sergey Matveev 6d8b9a747c [sanitizer] Fix go build following r209121. 
llvm-svn: 209136
 2014-05-19 16:08:53 +00:00
Sergey Matveev 6cb47a083b [sanitizer] Support sandboxing in sanitizer coverage. 
Summary:
Sandboxed code may now pass additional arguments to
__sanitizer_sandbox_on_notify() to force all coverage data to be dumped to a
single file (the default is one file per module). The user may supply a file or
socket to write to. The latter option can be used to broker out the file writing
functionality. If -1  is passed, we pre-open a file.

llvm-svn: 209121
 2014-05-19 12:53:03 +00:00
Timur Iskhodzhanov 930ffe94aa [Sanitizer tests] Don't need to use -lstdc++ thanks to --driver-mode=g++ 
Reviewed at http://reviews.llvm.org/D3796

llvm-svn: 209115
 2014-05-19 08:19:38 +00:00
Greg Fitzgerald f42b49787b cleanup and test litlint 
llvm-svn: 208907
 2014-05-15 18:52:11 +00:00
Evgeniy Stepanov f532c5bfd5 [sanitizer] Remove the definition of xdr_ops. 
User-visible instances of xdr_ops always seem to be allocated statically, and
don't need unpoisoning. Also, it's size differs between platforms.

llvm-svn: 208851
 2014-05-15 07:18:34 +00:00
Alp Toker 1ee7fc7a1a Fix typos 
llvm-svn: 208841
 2014-05-15 02:22:34 +00:00
Greg Fitzgerald ceae1fbafd migrate litlint from argparse to optparse. reenabled 
llvm-svn: 208826
 2014-05-14 23:31:20 +00:00
Greg Fitzgerald 73bd03cee9 Disabled litlint. It requires Python 2.7 or later 
llvm-svn: 208823
 2014-05-14 23:20:30 +00:00
Greg Fitzgerald a310d98ff1 add script to ensure lit test contains %run 
llvm-svn: 208819
 2014-05-14 22:49:46 +00:00
Kostya Serebryany b9e31d7fcd [asan] use some LIKELY/UNLIKELY 
llvm-svn: 208776
 2014-05-14 14:03:31 +00:00
Timur Iskhodzhanov 86e2470a5b [ASan/Win] Enable demangling of global variable names 
llvm-svn: 208775
 2014-05-14 13:55:59 +00:00
Evgeniy Stepanov 99d3791a88 [sanitizer] Fix crash in getgrnam_r and similar interceptors. 
When no matching record is found, getgrnam_r return 0 but sets result to NULL.
Should fix PR19734.

llvm-svn: 208773
 2014-05-14 12:32:40 +00:00
Alexander Potapenko 04e2f43756 [libsanitizer] Notify the runtime about file being closed before the actual call to fclose(). 
This shall fix spurious false positive race reports between fclose() and fopen64().

llvm-svn: 208772
 2014-05-14 11:48:37 +00:00
Kostya Serebryany d5e1091c73 [asan] tyring to fix the Android build 
llvm-svn: 208763
 2014-05-14 09:21:22 +00:00
Kostya Serebryany 7534a60753 [asan] Respect personality in kernel area detector, patch by Yuri Gribov 
llvm-svn: 208760
 2014-05-14 08:13:11 +00:00
Alexander Potapenko 291b827890 [libsanitizer] Fix the return type of internal_fork 
llvm-svn: 208714
 2014-05-13 17:31:09 +00:00
Alexander Potapenko 4a6cac4382 [libsanitizer] Use internal_fork() to spawn the symbolizer process. 
This should fix https://code.google.com/p/thread-sanitizer/issues/detail?id=61

llvm-svn: 208707
 2014-05-13 16:17:54 +00:00
Timur Iskhodzhanov 5ce3937ed4 [Sanitizer tests] Define 16- and 64-bit versions of atomic_compare_exchange_strong on Windows 
Reviewed at http://reviews.llvm.org/D3745

llvm-svn: 208700
 2014-05-13 14:23:25 +00:00
Timur Iskhodzhanov 5812350591 [Sanitizer tests] Exclude three tests that fail on Windows 
llvm-svn: 208698
 2014-05-13 13:34:00 +00:00
Timur Iskhodzhanov e33158bcd1 [Sanitizer tests] Land the sanitizer twin of the asan-only change r208682 
llvm-svn: 208697
 2014-05-13 13:29:11 +00:00
Timur Iskhodzhanov 339e8c98f8 [Sanitizer tests] Add sanitizer_test_config.h to make the inclusion of gtest.h conditional 
Reviewed at http://reviews.llvm.org/D3744

llvm-svn: 208696
 2014-05-13 13:25:12 +00:00
Timur Iskhodzhanov 2e9136c2da [Sanitizer/ASan tests] Automatically detect the presence of libstdc++ 
llvm-svn: 208695
 2014-05-13 12:57:50 +00:00
Evgeniy Stepanov 68d7f43e38 [sanitizer] Disable fopen64 interceptor on osx. 
llvm-svn: 208693
 2014-05-13 12:05:38 +00:00
Timur Iskhodzhanov e5e92fac4a [Sanitizer tests] Fix most of the build problems on Windows 
E.g. use the pthread helpers introduced in r208674

llvm-svn: 208692
 2014-05-13 12:02:53 +00:00
Evgeniy Stepanov 7bd7063db0 [sanitizer] Mark several functions as possibly unused. 
llvm-svn: 208686
 2014-05-13 11:18:22 +00:00
Evgeniy Stepanov 4d16c1df0c [sanitizer] Delete an unused function. 
llvm-svn: 208678
 2014-05-13 09:03:45 +00:00
Evgeniy Stepanov 6b21d560c9 [sanitizer] Fix windows build. 
llvm-svn: 208677
 2014-05-13 08:47:40 +00:00
Evgeniy Stepanov 5680a26b0b [msan] Better open_memstream support. 
Move fflush and fclose interceptors to sanitizer_common.
Use a metadata map to keep information about the external locations
that must be updated when the file is written to.

llvm-svn: 208676
 2014-05-13 08:36:31 +00:00
Timur Iskhodzhanov 711269966c [Sanitizer tests] Make simple pthread tests compile and pass on Windows 
Reviewed at http://reviews.llvm.org/D3725

llvm-svn: 208674
 2014-05-13 08:07:09 +00:00
Kostya Serebryany 0d00675df2 [sanitizer] fix for ARM Linux, patch by Maxim Ostapenko 
llvm-svn: 208673
 2014-05-13 08:01:59 +00:00
Kostya Serebryany b7a7e55dc5 [sanitizer] define __sanitizer_time_t 
llvm-svn: 208671
 2014-05-13 07:49:39 +00:00
Timur Iskhodzhanov 1ac44dd087 [Sanitizer tests] Fix a comment that got out of sync with the #if 
llvm-svn: 208602
 2014-05-12 17:33:00 +00:00
Timur Iskhodzhanov 36fc9b18b7 [ASan tests] Also define USED/UNUSED in lib/sanitizer_common/sanitizer_internal_defs.h if Clang is used on Windows 
Otherwise we end up with macro redefinition warnings

llvm-svn: 208571
 2014-05-12 14:44:29 +00:00
Timur Iskhodzhanov 9a205ed8ee [ASan tests] Use the proper attribute on RunStrChrTest helper functions to avoid "unused function" warnings 
llvm-svn: 208568
 2014-05-12 14:31:57 +00:00
Sergey Matveev f37bd92c3a [asan] Move the "coverage" flag to common flags. 
The implementation lives in sanitizer_common and will need to access that flag.

llvm-svn: 208566
 2014-05-12 14:27:36 +00:00