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269 Commits

Author SHA1 Message Date
Evgeniy Stepanov 089c066bd6 [msan] Remove leftover MSanDR bits in tests. 
llvm-svn: 222762
 2014-11-25 15:00:23 +00:00
Eric Fiselier 909deebfc8 [compiler-rt] Make the MSAN wmemset intercepter call wmemset instead of memset. Fixes PR 21579 
Summary:
Exactly what the title says. I've tested this change against the libc++ test failures and it solves all of them. The check-msan rule also still passes.
I'm not sure why it called memset originally. 

I can add tests if requested but currently there are no tests involving wide chars and they are a c++11 features.

Reviewers: kcc, eugenis

Reviewed By: eugenis

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6352

llvm-svn: 222673
 2014-11-24 18:17:04 +00:00
Evgeniy Stepanov 7555f5ed1f [msan] Remove MSanDR and supporting code. 
MSanDR is a dynamic instrumentation tool that can instrument the code
(prebuilt libraries and such) that could not be instrumented at compile time.

This code is unused (to the best of our knowledge) and unmaintained, and
starting to bit-rot.

llvm-svn: 222232
 2014-11-18 10:33:15 +00:00
Richard Trieu b6b141d601 delete => delete[] for arrays. 
llvm-svn: 221769
 2014-11-12 04:19:57 +00:00
Kuba Brecka 14c0c5901d [compiler-rt] compiler-rt's CMake append_if function clashes with LLVM's, let's rename it to append_list_if 
Doing s/append_if/append_list_if/, no functional change.

http://reviews.llvm.org/D5739

llvm-svn: 219860
 2014-10-15 22:47:54 +00:00
Evgeniy Stepanov 37e069c2ac [msan] Fix fcvt interceptor. 
fcvt() result can be heap-allocated and must be unpoisoned.

llvm-svn: 215106
 2014-08-07 12:45:55 +00:00
Alexey Samsonov d6906e4ffe [MSan] Fix strncpy interceptor 
llvm-svn: 213590
 2014-07-22 00:10:08 +00:00
Evgeniy Stepanov eb893a1fd6 [msan] Fix out of bounds access in origin copying. 
llvm-svn: 212534
 2014-07-08 14:15:23 +00:00
Alexey Samsonov 91bb8e0e3a Generalize sanitizer allocator public interface. 
Introduce new public header <sanitizer/allocator_interface.h> and a set
of functions __sanitizer_get_ownership(), __sanitizer_malloc_hook() etc.
that will eventually replace their tool-specific equivalents
(__asan_get_ownership(), __msan_get_ownership() etc.). Tool-specific
functions are now deprecated and implemented as stubs redirecting
to __sanitizer_ versions (which are implemented differently in each tool).

Replace all uses of __xsan_ versions with __sanitizer_ versions in unit
and lit tests.

llvm-svn: 212469
 2014-07-07 17:39:31 +00:00
Alexey Samsonov e3a401a12b [MSan] Fixup r212082: enable tests for _mm_ intrinsics if and only if the 
unit test source file is compiled with Clang.

llvm-svn: 212121
 2014-07-01 19:58:41 +00:00
Alexey Samsonov c0fda339e2 Add the way to disable MSan unit tests for _mm_* intrinsics 
llvm-svn: 212082
 2014-07-01 01:38:52 +00:00
Evgeniy Stepanov 8717fec9af [msan] Fix origin copying. 
Conditions for the first and the last origin value in range were wrong.

llvm-svn: 211585
 2014-06-24 11:50:26 +00:00
Evgeniy Stepanov 4ea1647e8b [msan] Handle X86 *.psad.* and *.pmadd.* intrinsics. 
llvm-svn: 211156
 2014-06-18 12:02:29 +00:00
Evgeniy Stepanov 9959915890 [msan] Intercept __strto*_internal. 
This should fix strtoimax/strtoumax on newer glibc.
https://code.google.com/p/memory-sanitizer/issues/detail?id=36

llvm-svn: 210463
 2014-06-09 10:41:22 +00:00
Evgeniy Stepanov 66c6a18d39 [msan] Add a test for mmx.packuswb. 
llvm-svn: 210458
 2014-06-09 08:58:41 +00:00
Evgeniy Stepanov aaaf74f9fb [msan] Simplify tests. 
llvm-svn: 210457
 2014-06-09 08:57:40 +00:00
Evgeniy Stepanov d425a2b169 [msan] Handle x86 vector pack intrinsics. 
llvm-svn: 210020
 2014-06-02 12:31:44 +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
Alexey Samsonov eacb4d8417 [CMake] Use ExternalProject to build MSan-ified version of libcxx for unit tests. 
This change lets MSan rely on libcxx's own build system instead of manually
compiling its sources and setting up all the necessary compile flags. It would
also simplify compiling libcxx with another sanitizers (in particular, TSan).

The tricky part is to make sure libcxx is reconfigured/rebuilt when Clang or
MSan runtime library is changed. "clobber" step used in this patch works well
for me, but it's possible it would break for other configurations - will
watch the buildbots.

llvm-svn: 208451
 2014-05-09 22:11:03 +00:00
Evgeniy Stepanov 474011d55d [msan] Add missing quotes. 
llvm-svn: 206589
 2014-04-18 13:03:54 +00:00
Evgeniy Stepanov 191ebd874f [msan] Run msan_test in the new with-calls mode. 
llvm-svn: 206587
 2014-04-18 12:19:28 +00:00
Evgeniy Stepanov 9ce9a6cdf6 [msan] Intercept wcsftime(). 
llvm-svn: 206179
 2014-04-14 14:59:42 +00:00
Evgeniy Stepanov f653cda269 [msan] Introduce MsanThread. Move thread-local allocator cache out of TLS. 
This reduces .tbss from 109K down to almost nothing.

llvm-svn: 205618
 2014-04-04 09:47:41 +00:00
Evgeniy Stepanov a55fcd35e9 [msan] Precise origin handling in __unaligned_(load|store)*. 
llvm-svn: 205412
 2014-04-02 11:06:35 +00:00
Evgeniy Stepanov 8dbf3faa16 [msan] clang-format several unit tests 
llvm-svn: 205410
 2014-04-02 09:17:55 +00:00
Evgeniy Stepanov 86a4d2c32b [sanitizer] Intercept fgetpwent / fgetgrent. 
These interceptors require deep unpoisoning of return values.
While at it, we do the same for all other pw/gr interceptors to
reduce dependency on libc implementation details.

llvm-svn: 205004
 2014-03-28 13:03:55 +00:00
Evgeniy Stepanov 74e77756ef [sanitizer] Intercept getpwent/getgrent. 
llvm-svn: 205000
 2014-03-28 10:56:07 +00:00
Evgeniy Stepanov 9dcd5a353a [msan] Intercept several malloc-related functions. 
llvm-svn: 204923
 2014-03-27 13:29:29 +00:00
Evgeniy Stepanov 1382fabd97 [msan] Enable SelectPartial test. 
Fixed in r204716.

llvm-svn: 204717
 2014-03-25 13:09:14 +00:00
Evgeniy Stepanov 517ff05ffb [msan] Fix compiler warning in msan_test.cc. 
llvm-svn: 204708
 2014-03-25 10:03:39 +00:00
Evgeniy Stepanov 90384ad60e [msan] A disabled test for inexact "select" instrumentation. 
llvm-svn: 204707
 2014-03-25 09:36:15 +00:00
Alexey Samsonov c41ca6d31a [CMake] Rename the variable 
llvm-svn: 204602
 2014-03-24 13:29:20 +00:00
Alexey Samsonov 1847401332 [CMake] Respect CMAKE_CXX_FLAGS in custom clang_compile commands 
llvm-svn: 204593
 2014-03-24 09:42:12 +00:00
Alexey Samsonov 8c956460d3 Make MSan unittest -Werror=sign-compare clean 
llvm-svn: 204592
 2014-03-24 09:41:11 +00:00
Alexey Samsonov 17703c1092 [CMake] Build sanitizer unit tests with -std=c++11 
llvm-svn: 204234
 2014-03-19 13:57:33 +00:00
Evgeniy Stepanov 9fa9a49853 [msan] Test for aggregates passing through ellipsis. 
llvm-svn: 203795
 2014-03-13 13:18:15 +00:00
Alexey Samsonov 32956d651a [CMake] Make append_if semantics similar to those used in LLVM 
llvm-svn: 203773
 2014-03-13 09:31:36 +00:00
Alexey Samsonov 6dece3c99f Add common interceptors for memchr/memrchr 
llvm-svn: 202972
 2014-03-05 13:25:32 +00:00
Alexey Samsonov d964e7cd81 [CMake] Test for libdl and libpthread presence 
llvm-svn: 202847
 2014-03-04 13:28:21 +00:00
Evgeniy Stepanov f7abc8dff6 [msan] Tests for X86 SIMD bitshift intrinsic support. 
llvm-svn: 202713
 2014-03-03 13:52:36 +00:00
Alexey Samsonov 11705b2f10 [CMake] break dependency between unit tests and runtimes in standalone build 
llvm-svn: 201778
 2014-02-20 12:03:56 +00:00
Alexey Samsonov 8434e60f7e Move MSan lit-tests under test/msan 
llvm-svn: 201412
 2014-02-14 13:02:58 +00:00
Evgeniy Stepanov a21280307f [sanitizer] Fix getpwuid_r (and similar) interceptors missing one of the arguments. 
llvm-svn: 201410
 2014-02-14 12:32:15 +00:00
Evgeniy Stepanov 05938a23f5 [sanitizer] Use mmap to zero-fill large shadow regions. 
This is covered by existing ASan test.
This does not change anything for TSan by default (but provides a flag to 
change the threshold size).
Based on a patch by florent.bruneau here:
  https://code.google.com/p/address-sanitizer/issues/detail?id=256

llvm-svn: 201400
 2014-02-14 11:41:26 +00:00
Sergey Matveev 1394f2da85 [msan] Rewrite strto* interceptors and add a few more. 
Express the strto* interceptors though macros. This removes a lot of
duplicate code and fixes a couple of copypasto bugs (where "res" was declared of
a different type than the actual return type). Also, add a few more interceptors
for strto*_l.

llvm-svn: 200316
 2014-01-28 13:45:58 +00:00
Evgeniy Stepanov 0b09c623c1 [msan] Replace assert() with GTest ASSERT_* in msan_test. 
llvm-svn: 200293
 2014-01-28 08:51:39 +00:00
Evgeniy Stepanov 3ee789cbbb [msan] Temporarily disable two tests that are failing with new glibc. 
llvm-svn: 198919
 2014-01-10 07:34:16 +00:00
Evgeniy Stepanov cb98c5f6f0 [msan] Relax gethostbyname_r test condition. 
Apparently, its return value depends on the glibc version.

llvm-svn: 197390
 2013-12-16 15:01:31 +00:00
Evgeniy Stepanov 43fc44007d [msan] Fix gethostbyname_r and similar interceptors. 
*h_errno is written not on success, but on failure.
In fact, it seems like it can be written even when return value signals
success, so we just unpoison it in all cases.

llvm-svn: 197383
 2013-12-16 13:24:33 +00:00
Evgeniy Stepanov 3158ec4002 [msan] Fix strncat interceptor, add missing tests. 
llvm-svn: 197244
 2013-12-13 16:31:59 +00:00
Evgeniy Stepanov 584fd96e9e [msan] Unpoison memory that is returned to the OS and flush its shadow. 
llvm-svn: 195244
 2013-11-20 12:51:14 +00:00
Evgeniy Stepanov bfb2016c83 [msan] Fix origin tracking in unaligned load/store. 
llvm-svn: 195130
 2013-11-19 14:47:56 +00:00
Evgeniy Stepanov 1c8c3fe4b4 [msan] Fix a very unfortunate typo in origin copying. 
It was causing randomly missing origins.

llvm-svn: 194036
 2013-11-05 01:24:38 +00:00
Evgeniy Stepanov a6b5eec757 [sanitizer] Intercept strptime. 
llvm-svn: 193903
 2013-11-02 01:01:35 +00:00
Evgeniy Stepanov 365bd0c88c [msan] Intercept memccpy. 
llvm-svn: 193897
 2013-11-01 23:49:48 +00:00
Evgeniy Stepanov a7add488ae [msan] Disable mlock/mlockall to work around a linux kernel bug. 
The same logic is present in ASan and TSan.

llvm-svn: 193755
 2013-10-31 15:51:22 +00:00
Evgeniy Stepanov 0bd1f00ec6 [sanitizer] Intercept drand48_r, lrand48_r. 
llvm-svn: 193655
 2013-10-29 22:25:27 +00:00
Evgeniy Stepanov bf60342d47 [sanitizer] Intercept sincos, remquo, lgamma, lgamma_r. 
llvm-svn: 193645
 2013-10-29 19:49:35 +00:00
Evgeniy Stepanov 451c8de2d8 [msan] Intercept shmat. 
llvm-svn: 193581
 2013-10-29 02:48:49 +00:00
Evgeniy Stepanov 94042e1ff2 [sanitizer] Intercept tmpnam, tmpnam_r, tempnam. 
llvm-svn: 193415
 2013-10-25 15:51:48 +00:00
Evgeniy Stepanov 2acb2470f9 [sanitizer] Remove pthread_attr_getstackaddr interceptor. 
The function is deprecated.

llvm-svn: 193409
 2013-10-25 14:27:00 +00:00
Evgeniy Stepanov 07507ffab4 [msan] Zerofill initstate_r buffer in random_r test. 
llvm-svn: 193406
 2013-10-25 13:03:20 +00:00
Evgeniy Stepanov c2b6cb0747 [sanitizer] Intercept pthread_attr_get*. 
llvm-svn: 193405
 2013-10-25 13:01:31 +00:00
Evgeniy Stepanov be9cdbb58c [sanitizer] Intercept random_r. 
llvm-svn: 193396
 2013-10-25 08:58:13 +00:00
Evgeniy Stepanov f312b480e2 [sanitizer] Intercept shmctl. 
llvm-svn: 193348
 2013-10-24 14:47:34 +00:00
Evgeniy Stepanov d280ee48e8 [msan] Fix invalid origin copying. 
Origin copying may destroy valid origin info. This is caused by
__msan_copy_origin widening the address range to the nearest 4-byte aligned
addresses both on the left and on the right. If the target buffer is
uninitialized and the source is fully initialized, this will result in
overriding valid origin of target buffer with stale (possibly 0) origin of the
source buffer.

With this change the widened origin is copied only if corresponding shadow
values are non zero.

llvm-svn: 193338
 2013-10-24 11:56:03 +00:00
Evgeniy Stepanov 3e6064f9d2 [sanitizer] Intercept ether_* functions. 
llvm-svn: 193241
 2013-10-23 13:57:47 +00:00
Evgeniy Stepanov 3cb9df042e [sanitizer] Move statfs/fstatfs to common interceptors and add statvfs/fstatvfs. 
llvm-svn: 192965
 2013-10-18 11:14:16 +00:00
Evgeniy Stepanov 70d5abfba2 [sanitizer] Intercept getmntent, getmntent_r. 
llvm-svn: 192959
 2013-10-18 09:41:43 +00:00
Evgeniy Stepanov 4bbf273173 [sanitizer] Fix unpoisoning of msghdr::msg_name in recvmsg interceptor. 
llvm-svn: 192886
 2013-10-17 11:32:30 +00:00
Alexey Samsonov bc7c87a8cb [Sanitizer] Move pthread_cond_signal and pthread_cond_broadcast to common interceptors 
llvm-svn: 192876
 2013-10-17 09:24:03 +00:00
Alexey Samsonov edecc38395 Make some pthread_mutex_* and pthread_cond_* interceptors common. 
Reviewers: eugenis, dvyukov

Reviewed By: dvyukov

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D1937

llvm-svn: 192774
 2013-10-16 08:20:31 +00:00
Evgeniy Stepanov 7a2bbc30a2 [msan] Remove CallocOverflow test. 
This behaviour depends on MSAN_OPTIONS.
All interesting combinations are covered by lit_tests/allocator_returns_null.cc.

llvm-svn: 192691
 2013-10-15 12:20:16 +00:00
Evgeniy Stepanov 7aacd9c172 [msan] Intercept strto(d|f|ld)_l and glibc-specific __strto(d|f|ld)_l. 
llvm-svn: 192583
 2013-10-14 11:52:40 +00:00
Evgeniy Stepanov c907a60ffb [sanitizer] Fix localtime and gmtime interceptors to clean tm->tm_zone. 
llvm-svn: 191827
 2013-10-02 14:30:03 +00:00
Evgeniy Stepanov 8f27f6b549 [sanitizer] A bunch of libc interceptors. 
sigwait
sigwaitinfo
sigtimedwait
sigemptyset
sigfillset
sigpending
sigprocmask

llvm-svn: 191374
 2013-09-25 14:47:43 +00:00
Evgeniy Stepanov 2761ee0409 [sanitizer] Intercept wordexp. 
llvm-svn: 191305
 2013-09-24 14:38:22 +00:00
Evgeniy Stepanov 842fa3f80d [msan] Intercept fstatat / fstatat64. 
llvm-svn: 190306
 2013-09-09 13:40:41 +00:00
Kostya Serebryany 6c5b034d7b [msan] make calloc crash instead of returning 0 on overflow (controlled by the allocator_may_return_null flag) 
llvm-svn: 190132
 2013-09-06 10:58:55 +00:00
Evgeniy Stepanov f9ddb43975 [msan] A regression test for r189785. 
llvm-svn: 189786
 2013-09-03 10:05:45 +00:00
Evgeniy Stepanov e3eaa7bb35 [msan] Intercept memalign, valloc, pvalloc. 
PR17039

llvm-svn: 189750
 2013-09-02 09:24:53 +00:00
Evgeniy Stepanov 82185980c4 [msan] A test for ppoll() interceptor. 
llvm-svn: 189339
 2013-08-27 11:10:20 +00:00
Evgeniy Stepanov 0d13c707d5 [msan] Extend VAArgTLSOverwrite test. 
This test now covers LLVM r189104.

llvm-svn: 189105
 2013-08-23 12:13:18 +00:00
Evgeniy Stepanov 64cace0687 [sanitizer] Intercept poll/ppoll. 
llvm-svn: 188177
 2013-08-12 13:19:53 +00:00
Evgeniy Stepanov 98c39a184e [sanitizer] Intercept getgroups. 
llvm-svn: 188167
 2013-08-12 11:01:40 +00:00
Evgeniy Stepanov 233455cba8 [sanitizer] Intercept strerror and strerror_r. 
llvm-svn: 187978
 2013-08-08 11:44:05 +00:00
Evgeniy Stepanov 04b7bff1fe [sanitizer] Intercept sched_getaffinity. 
Re-applying with a more reliable test case.

llvm-svn: 187876
 2013-08-07 09:10:16 +00:00
David Blaikie 787e2b6499 Revert "[sanitizer] Intercept sched_getaffinity." 
This reverts commit r187788.

The test case is unreliable (as the test may be run in a situation in
which it has no affinity with cpu0). This can be recommitted with a more
reliable test - possibly using CPU_COUNT != 0 instead (I wasn't entirely
sure that a process was guaranteed to have at least one affinity, though
it seems reasonable, or I'd have made the change myself).

llvm-svn: 187841
 2013-08-07 00:37:26 +00:00
Evgeniy Stepanov 03c0281a17 [sanitizer] Fix NULL arg handling in setitimer/getitimer interceptors. 
llvm-svn: 187789
 2013-08-06 09:54:33 +00:00
Evgeniy Stepanov 9f05e5e533 [sanitizer] Intercept sched_getaffinity. 
llvm-svn: 187788
 2013-08-06 09:29:01 +00:00
Evgeniy Stepanov 44b77c26e4 [msan] Allocator statistics interface and malloc hooks. 
llvm-svn: 187653
 2013-08-02 14:26:58 +00:00
Evgeniy Stepanov 90daaf9132 [msan] Fix unused function warning in the tests. 
llvm-svn: 187648
 2013-08-02 09:09:02 +00:00
Evgeniy Stepanov 5dbedf6c2a [msan] Intercept setenv, putenv. 
llvm-svn: 187575
 2013-08-01 11:14:14 +00:00
Evgeniy Stepanov 807e131261 [msan] Intercept pthread_join. 
llvm-svn: 187413
 2013-07-30 12:54:34 +00:00
Evgeniy Stepanov da9fd25603 [msan] Intercept confstr. 
llvm-svn: 187412
 2013-07-30 12:46:59 +00:00
Alexey Samsonov 9916aa2d95 [Sanitizer] move strcpy and strncpy to common interceptors 
llvm-svn: 186408
 2013-07-16 12:51:53 +00:00
Alexey Samsonov fde429ba69 [Sanitizer] Revert some parts of r186109 related to mbstowcs-and-friends interceptors 
llvm-svn: 186155
 2013-07-12 11:59:58 +00:00
Evgeniy Stepanov 9240838655 [sanitizer] More checks in mbstowcs-like interceptors. 
llvm-svn: 186004
 2013-07-10 14:17:46 +00:00
Evgeniy Stepanov 123fdb3413 [sanitizer] Fix handling of edge cases in mbstowcs-like interceptors. 
llvm-svn: 186002
 2013-07-10 14:01:51 +00:00
Evgeniy Stepanov 77ef78a0a5 [sanitizer] Intercept realpath and canonicalize_file_name. 
Handle realpath(path, NULL) form.

llvm-svn: 185921
 2013-07-09 09:53:37 +00:00
Evgeniy Stepanov 628d727749 [msan] Intercept pthread_key_create. 
llvm-svn: 185693
 2013-07-05 12:31:07 +00:00
Evgeniy Stepanov db615c186f [sanitizer] More interceptors. 
bcopy
strtoimax, strtoumax
mbstowcs, mbsrtowcs, mbsnrtowcs
wcstombs, wcsrtombs, wcsnrtombs

llvm-svn: 185624
 2013-07-04 13:19:41 +00:00
Evgeniy Stepanov aa23bd83e5 [msan] Intercept mempcpy, wmempcpy. 
llvm-svn: 185431
 2013-07-02 14:49:24 +00:00
Evgeniy Stepanov 165d759a6a [sanitizer] Intercept mbtowc, mbrtowc, get_current_dir_name. 
Move getcwd to common interceptors.

llvm-svn: 185424
 2013-07-02 13:34:44 +00:00
Evgeniy Stepanov 654688bed5 [msan] Intercept stpcpy. 
llvm-svn: 185340
 2013-07-01 15:19:37 +00:00
Evgeniy Stepanov 8a4e24ea8b [sanitizer] Intercept getnameinfo. 
llvm-svn: 185338
 2013-07-01 13:51:31 +00:00
Evgeniy Stepanov f5cae53057 [msan] Optionally disable 2 tests (dlopen & gethostbyname). 
llvm-svn: 185076
 2013-06-27 13:21:00 +00:00
Evgeniy Stepanov 06d6c25141 [sanitizer] readdir and readdir_r interceptors. 
llvm-svn: 184950
 2013-06-26 15:00:53 +00:00
Evgeniy Stepanov 60d964d4f2 [sanitizer] Intercept sysinfo. 
llvm-svn: 184739
 2013-06-24 14:25:33 +00:00
Evgeniy Stepanov 02a7460d12 [sanitizer] Intercept inet_aton. 
llvm-svn: 184735
 2013-06-24 13:56:14 +00:00
Evgeniy Stepanov 0e8053af08 [sanitizer] Intercept readv, preadv, writev, pwritev. 
llvm-svn: 184717
 2013-06-24 10:43:23 +00:00
Evgeniy Stepanov b58b72e151 [msan] Intercept (v)asprintf. 
llvm-svn: 184545
 2013-06-21 13:32:26 +00:00
Alexey Samsonov dd489a4e15 [MSan] don't add msan unit tests to check-msan command if libcxx is not checked out 
llvm-svn: 183641
 2013-06-10 09:09:40 +00:00
Evgeniy Stepanov 53c8c13bf1 [msan] Implement __sanitizer_unaligned_*. 
llvm-svn: 183221
 2013-06-04 13:08:36 +00:00
Evgeniy Stepanov 677003140c [sanitizer] Fix getaddrinfo interceptor to use the actual returned sockaddr size. 
llvm-svn: 182852
 2013-05-29 12:33:31 +00:00
Evgeniy Stepanov fc708db4c1 [sanitizer] Intercept getpeername. 
llvm-svn: 182844
 2013-05-29 11:49:25 +00:00
Evgeniy Stepanov f28217ad0e [sanitizer] modf/modff/modfl interceptors. 
llvm-svn: 182838
 2013-05-29 10:03:11 +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 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
Evgeniy Stepanov 97aea34b54 [msan] Intercept getsockname. 
llvm-svn: 182475
 2013-05-22 13:46:22 +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
Evgeniy Stepanov 970be35808 [sanitizer] Intercept pthread_getschedparam. 
llvm-svn: 182353
 2013-05-21 08:12:08 +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
Evgeniy Stepanov 87c6ec7cfe [msan] Intercept dl_iterate_phdr. 
llvm-svn: 182004
 2013-05-16 13:00:25 +00:00
Evgeniy Stepanov 44b75efab4 [sanitizer] Intercept inet_pton and inet_ntop. 
llvm-svn: 180107
 2013-04-23 14:05:15 +00:00
Evgeniy Stepanov 455abf4872 [msan] Unpoison the result of posix_memalign. 
llvm-svn: 180101
 2013-04-23 13:27:36 +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
Evgeniy Stepanov d1dae90bf2 [msan] Fix gcc build of msan_test. 
llvm-svn: 179594
 2013-04-16 14:09:47 +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
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
Evgeniy Stepanov b4eac2f810 [msan] Interceptors for pipe2 and socketpair. 
llvm-svn: 179022
 2013-04-08 13:45:12 +00:00
Evgeniy Stepanov 7ba7207f1d [msan] Intercept time(). 
llvm-svn: 179002
 2013-04-08 08:25:22 +00:00
Evgeniy Stepanov e7a7a9b972 [msan] Fix sigaction interceptor. 
llvm-svn: 178868
 2013-04-05 12:58:07 +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
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
Evgeniy Stepanov ecbf64648f [msan] Handle dlopen() failure in dlopen interceptor. 
llvm-svn: 177728
 2013-03-22 11:59:49 +00:00
Evgeniy Stepanov 93a842bd1f [msan] Move test main and gtest include to separate files. 
llvm-svn: 177718
 2013-03-22 09:01:26 +00:00
Evgeniy Stepanov bfe9df221d [msan] Place dlopen in an anon namespace. 
llvm-svn: 177716
 2013-03-22 08:49:36 +00:00
Evgeniy Stepanov b4a218db34 [sanitizer] Don't adjust the size of the user-allocated stack. 
Moved this code to sanitizer_common.

llvm-svn: 177383
 2013-03-19 09:30:52 +00:00
Evgeniy Stepanov c6bce93591 [msan] Intercept readdir64. 
llvm-svn: 177065
 2013-03-14 12:49:23 +00:00
Evgeniy Stepanov 4062a396c7 [msan] Fix a typo in test. 
llvm-svn: 177059
 2013-03-14 11:58:13 +00:00
Evgeniy Stepanov 231894a902 [sanitizer] Intercept frexp and friends. 
llvm-svn: 177056
 2013-03-14 11:34:39 +00:00
Evgeniy Stepanov ead6cf7c72 [msan] Intercept __strdup, strndup, __strndup. 
llvm-svn: 177052
 2013-03-14 11:10:36 +00:00
Evgeniy Stepanov 98f5ea0dba [msan] Increase stack size as required. 
Adjust stack size in pthread_attr_t when the app-requested size does not fit MSan TLS.

llvm-svn: 176939
 2013-03-13 09:01:40 +00:00
Reid Kleckner c9d382b5a4 [msan] intercept dlopen and clear shadow for it 
Summary:
The loader does not call mmap() through the PLT because it has to
bootstrap the process before libc is present.  Hooking dlopen() isn't
enough either because the loader runs module initializers before
returning, and they could run arbitrary msan instrumented code.

If msandr is present, then we can intercept the mmaps from dlopen at the
syscall layer and clear the shadow there.  If msandr is missing, we
clear the shadow after dlopen() and hope any initializers are trivial.

Reviewers: eugenis

CC: kcc, llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D509

llvm-svn: 176818
 2013-03-11 18:07:42 +00:00
Evgeniy Stepanov ea61d08185 [sanitizer] Add interceptors for localtime and friends. 
llvm-svn: 175499
 2013-02-19 09:19:16 +00:00
Evgeniy Stepanov e676f66fe3 [msan] Allow zero buf pointer in getcwd() interceptor. 
llvm-svn: 174970
 2013-02-12 14:36:22 +00:00
Evgeniy Stepanov 257274e754 [msan] Lit tests for MemorySanitizer. 
Build system setup for MSan lit tests (build with freshly-built clang, run,
check output) - a nearly exact copy from ASan.
First 2 lit tests for MSan.

llvm-svn: 174876
 2013-02-11 11:34:26 +00:00