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164 Commits

Author SHA1 Message Date
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
Evgeniy Stepanov 358698279d [sanitizer] Further split private and public sanitizer headers. 
And make msan_interface.h C-compatible.

llvm-svn: 173928
 2013-01-30 13:12:08 +00:00
Alexey Samsonov 0d92533b29 Use LLVM_BUILD_TYPE instead of CMAKE_BUILD_TYPE in compiler-rt unit tests to match the behavior of llvm unittests 
llvm-svn: 173926
 2013-01-30 12:18:49 +00:00
Evgeniy Stepanov eac7f934f0 [msan] Cleanup public interface header. 
Moved everything users are not supposed to use to a private interface header.
Documented all public interfaces. Made them safe to use even if built without
MemorySanitizer.

llvm-svn: 173800
 2013-01-29 14:33:29 +00:00
Evgeniy Stepanov 2538bd1901 [msan] Remove icmp tests that require exact shadow propagation. 
llvm-svn: 173686
 2013-01-28 13:45:16 +00:00
Alexey Samsonov 5311754b62 [CMake] Fix compiler-rt tests after r173617 
llvm-svn: 173668
 2013-01-28 07:16:22 +00:00