f9c22916d5
tsan: fix freebsd build
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freebsd does not have /proc/self/environ
llvm-svn: 211417
2014-06-20 22:49:41 +00:00
3fc095e031
tsan: remove unused header include
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llvm-svn: 211385
2014-06-20 18:28:34 +00:00
a2327c3a65
[sanitizer] Intercept pthread_*attr_get*.
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This is a resubmit of r211166 reverted due to osx breakage.
llvm-svn: 211264
2014-06-19 10:19:57 +00:00
868050a667
Revert "[sanitizer] Intercept pthread_*attr_get*."
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This reverts commit r211166. It broke public mac os x bots.
llvm-svn: 211206
2014-06-18 19:04:47 +00:00
b87f1efc5f
[sanitizer] Intercept pthread_*attr_get*.
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llvm-svn: 211166
2014-06-18 14:16:41 +00:00
2c27df9a33
[msan] Intercept __getdelim.
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llvm-svn: 211162
2014-06-18 13:35:13 +00:00
853a232e66
[ASan] Fix https://code.google.com/p/address-sanitizer/issues/detail?id=321 for time() and frexp()
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Add a test for the frexp() interceptor.
Annotate the interceptors that may potentially corrupt stack IDs of freed buffers with FIXME comments.
llvm-svn: 211153
2014-06-18 09:27:40 +00:00
1236ac388d
Swap getdtablesize() for sysconf(_SC_OPEN_MAX).
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Bionic is no removing this as it was removed from POSIX 2004.
llvm-svn: 211027
2014-06-16 14:51:11 +00:00
998d991b2d
[sanitizer] Support PTRACE_GETEVENTMSG in the ptrace() interceptor.
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llvm-svn: 211022
2014-06-16 13:49:13 +00:00
9f5d48c0a0
[asan] initialze varaibles to avoid a (false positive) report from gcc's -Wmaybe-uninitialized
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llvm-svn: 211008
2014-06-16 08:32:02 +00:00
1f386f0f36
Fix getting IP, BP and SP for address sanitizer's needs on FreeBSD in 32-bit mode
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llvm-svn: 210988
2014-06-15 13:56:28 +00:00
1c71fde161
Exclude Android from the tests for valloc/pvalloc.
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These functions are being removed from Android because they were removed
from POSIX 2004.
llvm-svn: 210962
2014-06-14 00:50:03 +00:00
e287ef847a
[Sanitizer] Merge AnsiColorDecorator and SanitizerCommonDecorator, use the latter in UBSan
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llvm-svn: 210959
2014-06-13 23:46:37 +00:00
dfa5439652
[asan] Fix mmap-ed coverage with coverage=0.
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llvm-svn: 210655
2014-06-11 15:11:26 +00:00
b2b4c3ab32
[asan] Exclude non-executable mappings from coverage.
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llvm-svn: 210649
2014-06-11 10:11:51 +00:00
9cc3ebdd3b
[sanitizer] Relax sanity checks in ioctl decoding.
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Standard KVM ioctls don't pass currect ioctl_decode().
llvm-svn: 210533
2014-06-10 13:54:15 +00:00
909b7490a3
sanitizer: document missing macro
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llvm-svn: 210329
2014-06-06 12:16:26 +00:00
38c228a842
[asancov] Faster coverage in memory-mapped mode.
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Use caller pc of __sanitizer_cov_module_init to figure out
when 2 sequential calls are from the same module; skip
.sancov.map file update in this case.
llvm-svn: 210267
2014-06-05 14:38:53 +00:00
3641cd43b2
[asan] Use -pthread instead of -lpthread in tests.
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llvm-svn: 210255
2014-06-05 12:22:37 +00:00
f4239c7707
Remove's uses of sys/timeb.h for Android.
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Android is removing sys/timeb.h because it was removed in POSIX 2008.
llvm-svn: 210235
2014-06-05 02:00:24 +00:00
fe18102649
[sancov] Handle fork.
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Reset coverage data on fork().
For memory-mapped mode (coverage_direct=1) this helps avoid loss of data
(before this change two processes would write to the same file simultaneously).
For normal mode, this reduces coverage dump size, because PCs from the parent
process are no longer inherited by the child.
llvm-svn: 210180
2014-06-04 12:13:54 +00:00
ce98452516
[sancov] Delay opening dump file until the first module constructor.
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llvm-svn: 210109
2014-06-03 15:27:15 +00:00
937afa1fbb
[sancov] Handle spaces in module name.
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llvm-svn: 210108
2014-06-03 15:25:43 +00:00
bb2fc7e4bb
[sancov] Fix map update logic on Android.
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dlopen()/dlclose() are not interceptable on Android,
so we update .sancov.map in module constructor callbacks.
llvm-svn: 210098
2014-06-03 12:15:43 +00:00
96f8edc720
[asan] Default to memory-mapped coverage on Android.
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The alternative (writing coverage at process exit) is nearly useless there.
llvm-svn: 210024
2014-06-02 13:06:33 +00:00
2fcc427741
[sancov] Remove debug leftovers and update usage text.
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llvm-svn: 210009
2014-06-02 09:04:45 +00:00
afdcc96d9f
tsan: optimize memory access functions
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The optimization is two-fold:
First, the algorithm now uses SSE instructions to
handle all 4 shadow slots at once. This makes processing
faster.
Second, if shadow contains the same access, we do not
store the event into trace. This increases effective
trace size, that is, tsan can remember up to 10x more
previous memory accesses.
Perofrmance impact:
Before:
[ OK ] DISABLED_BENCH.Mop8Read (2461 ms)
[ OK ] DISABLED_BENCH.Mop8Write (1836 ms)
After:
[ OK ] DISABLED_BENCH.Mop8Read (1204 ms)
[ OK ] DISABLED_BENCH.Mop8Write (976 ms)
But this measures only fast-path.
On large real applications the speedup is ~20%.
Trace size impact:
On app1:
Memory accesses : 1163265870
Including same : 791312905 (68%)
on app2:
Memory accesses : 166875345
Including same : 150449689 (90%)
90% of filtered events means that trace size is effectively 10x larger.
llvm-svn: 209897
2014-05-30 13:36:29 +00:00
1b42b81549
[Sanitizers Win] Move duplicate Windows-specific compiler flags to a common CMake variable
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Reviewed at http://reviews.llvm.org/D3952
llvm-svn: 209889
2014-05-30 12:42:57 +00:00
3a0486b1e9
[sanitizer] Fix build on ARM.
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llvm-svn: 209884
2014-05-30 10:50:17 +00:00
dd7cb28572
[asan] Enable ASan on PowerPC.
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Patch by Peter Bergner.
llvm-svn: 209879
2014-05-30 08:52:03 +00:00
50c1532a1a
[sanitizer] Update flags test.
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llvm-svn: 209818
2014-05-29 14:55:12 +00:00
fa5c0750f0
[sanitizer] Add coverage_dir flag.
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llvm-svn: 209815
2014-05-29 14:33:16 +00:00
a0aa0f41d1
[sanitizer] Require that options end with '='.
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llvm-svn: 209814
2014-05-29 14:32:32 +00:00
9cd9b4ce0c
Support getting executable's name for sanitizers needs on FreeBSD
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llvm-svn: 209805
2014-05-29 12:12:42 +00:00
76d35f47d3
Fix building 32-bit common sanitizer tests on FreeBSD 9.2
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llvm-svn: 209804
2014-05-29 11:35:05 +00:00
5bcd1d8a8f
[Sanitizer] Always prefer cached contents of /proc/self/exe if it's available
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llvm-svn: 209773
2014-05-28 21:23:53 +00:00
5864ac39ee
tsan: do not use 64-bit atomics in allocator code
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64-bit atomics make porting of asan to 32-bits platforms problematic.
llvm-svn: 209744
2014-05-28 15:22:12 +00:00
82ee0433da
[ASan/Win] Use clang rather than clang-cl by default for lit tests. Make Windows-only tests explicitly use clang-cl.
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Reviewed at http://reviews.llvm.org/D3893
llvm-svn: 209719
2014-05-28 08:38:13 +00:00
a00ff194b7
[asan] Add a few stubs to fix windows build.
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llvm-svn: 209717
2014-05-28 08:26:24 +00:00
360c911872
[asan] Disable dlopen interceptor on Android.
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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
567e516015
[asancov] Write coverage directly to a memory-mapped file.
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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
7b15cf8884
On AArch64, use clone() instead of fork()
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Patch by Gideon Billings.
Differential Revision: http://reviews.llvm.org/D3903
llvm-svn: 209641
2014-05-26 23:44:55 +00:00
2be4a28297
[sanitizer] Make stack traces from dlclose()'d modules more meaningful.
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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
a72efdff9e
[ubsan] handle long double in 32-bit mode; part of the patch by Marek Polacek
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llvm-svn: 209516
2014-05-23 14:45:13 +00:00
83f91e786c
[sanitizer] Add __sanitizer_maybe_open_cov_file().
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Summary: Add a new interface function required for coverage sandboxing support.
llvm-svn: 209298
2014-05-21 13:43:52 +00:00
f77f2ece71
[tsan] Fix gotsan build.
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llvm-svn: 209286
2014-05-21 09:42:56 +00:00
208aae8ee0
[msan] Chained origins re-design.
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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
b9aa538db1
[sanitizer] fix linux_dirent for SANITIZER_X32; based on patch by H.J. Lu
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llvm-svn: 209281
2014-05-21 08:21:13 +00:00
b4e24fccd1
[sanitizer] define SANITIZER_X32 and use it in ThreadDescriptorSize; partially based on patch by H.J. Lu
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llvm-svn: 209279
2014-05-21 08:01:44 +00:00
84019ff7e5
Cast pointers to uptr when calling internal_syscall
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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
Dmitry Vyukov