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866 Commits

Author SHA1 Message Date
Evgeniy Stepanov 022235cf04 [msan] Unpoison argument shadow for C++ module destructors. 
Fixes PR17377.

llvm-svn: 191508
 2013-09-27 11:32:21 +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 46901f613b [msan] Test for atomic handling in MSan. 
llvm-svn: 191288
 2013-09-24 11:21:16 +00:00
Evgeniy Stepanov ce72b2c20b [msan] Fix a WTF in r191196. 
llvm-svn: 191197
 2013-09-23 13:34:26 +00:00
Evgeniy Stepanov f497bfee76 [msan] Allow nested symbolizer and loader scopes. 
llvm-svn: 191196
 2013-09-23 13:26:31 +00:00
Alexey Samsonov 786ee9b1ad [MSan] Fix -Wempty-body warning 
llvm-svn: 190994
 2013-09-19 08:35:16 +00:00
Evgeniy Stepanov 08d649c024 [msan] Check return value of main: compiler-rt tests. 
llvm-svn: 190783
 2013-09-16 13:25:26 +00:00
Evgeniy Stepanov 65562f5281 [msan] Fix origin of deallocated memory. 
MSan poisons deallocated memory but it used to give it an invalid origin value,
resulting in confusing reports. This change associates deallocation stack trace
with such memory.

Note that MSan does not have quarantine, and use-after-free detection is very
limited.

llvm-svn: 190781
 2013-09-16 11:03:31 +00:00
Evgeniy Stepanov 0da35401ce [msan] Add source file:line to stack origin reports. 
Test.

llvm-svn: 190690
 2013-09-13 12:55:07 +00:00
Evgeniy Stepanov ac5ac34cf7 [msan] Add source file:line to stack origin reports. 
Runtime library part.

llvm-svn: 190686
 2013-09-13 12:49:13 +00:00
Evgeniy Stepanov 9be91e970e [msan] Intercept tzset. 
llvm-svn: 190682
 2013-09-13 11:27:38 +00:00
Alexey Samsonov 7a36e6126b [Sanitizer] Refactor symbolization interface: use class instead of several functions. Move some code around to get rid of extra source files 
llvm-svn: 190410
 2013-09-10 14:36:16 +00:00
Evgeniy Stepanov df96e863de [msan] bool -> int to make msan_interface.h C-compatible. 
llvm-svn: 190402
 2013-09-10 11:04:37 +00:00
Evgeniy Stepanov 842fa3f80d [msan] Intercept fstatat / fstatat64. 
llvm-svn: 190306
 2013-09-09 13:40:41 +00:00
Evgeniy Stepanov 5c1035e7fa [sanitizer] A bunch of linux system call handlers. 
llvm-svn: 190157
 2013-09-06 14:20:01 +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
Sergey Matveev b9d34443f2 [lsan] Colorize LSan reports. 
llvm-svn: 189804
 2013-09-03 13:31:03 +00:00
Alexey Samsonov 5b5c99d219 ASan, LSan, MSan: try to find llvm-symbolizer binary in PATH if it is not provided. Now we don't need to explicitly set the location of llvm-symbolizer in lit test configs. 
llvm-svn: 189801
 2013-09-03 13:22:51 +00:00
Evgeniy Stepanov 499d480be5 [msan] Another regression test for r189786. 
llvm-svn: 189787
 2013-09-03 10:08:14 +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
Alexey Samsonov ef643ce471 [sanitizer] fix code style 
llvm-svn: 189474
 2013-08-28 11:26:09 +00:00
Evgeniy Stepanov 4f961de94e [msan] Remove extra backup/restore calls. 
llvm-svn: 189461
 2013-08-28 09:17:47 +00:00
Alexey Samsonov 0803953cea Generate list of symbols exported from sanitizer runtimes only on 64-bit Unix 
llvm-svn: 189454
 2013-08-28 08:07:04 +00:00
Alexey Samsonov acab30e927 Properly generate lists of exported symbols for sanitizer runtimes 
This change adds a Python script that is invoked for
the just-built sanitizer runtime to generate the list of exported symbols
passed to the linker. By default, it contains interceptors and sanitizer
interface functions, but can be extended with tool-specific lists.

llvm-svn: 189356
 2013-08-27 15:08:02 +00:00
Evgeniy Stepanov cb22c67a21 [msan] Save/restore va_arg_overflow_tls in signal handlers. 
llvm-svn: 189351
 2013-08-27 14:08:15 +00:00
Evgeniy Stepanov c41798152f [msan] Unpoison all TLS shadow when leaving a signal handler. 
llvm-svn: 189343
 2013-08-27 12:59:39 +00:00
Evgeniy Stepanov bb25af5f7b [msan] Fix a data race in signal/sigaction interceptors. 
llvm-svn: 189342
 2013-08-27 11:34:05 +00:00
Evgeniy Stepanov 82185980c4 [msan] A test for ppoll() interceptor. 
llvm-svn: 189339
 2013-08-27 11:10:20 +00:00
Evgeniy Stepanov a40a058ff1 [sanitizer] Simplify sigaction and sigset_t handling. 
llvm-svn: 189338
 2013-08-27 11:10:04 +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
Dmitry Vyukov 97f0eae0a5 tsan/msan: add halt_on_error flag 
If halt_on_error==true, program terminates after reporting first error.

llvm-svn: 188279
 2013-08-13 15:33:00 +00:00
Timur Iskhodzhanov eee13914e2 Define SANITIZER_INTERFACE_ATTRIBUTE on Windows and fix all the places where SANITIZER_INTERFACE_ATTRIBUTE or SANITIZER_ATTRIBUTE_WEAK are used 
llvm-svn: 188261
 2013-08-13 11:42:45 +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
Daniel Dunbar bc5dbc435e [tests] Update to use lit_config and lit package, as appropriate. 
llvm-svn: 188116
 2013-08-09 22:14:01 +00:00
Evgeniy Stepanov 564215d949 [sanitizer] Intercept scandir/scandir64. 
llvm-svn: 187982
 2013-08-08 13:57:15 +00:00
Evgeniy Stepanov 233455cba8 [sanitizer] Intercept strerror and strerror_r. 
llvm-svn: 187978
 2013-08-08 11:44:05 +00:00
Evgeniy Stepanov 7ea4795ed3 [sanitizer] ASan/MSan tests for r187967. 
r187967: Disable inlining between sanitized and non-sanitized functions.
llvm-svn: 187971
 2013-08-08 09:23:19 +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 1ea380f693 [msan] Fix msan tests with pipefail option. 
llvm-svn: 187485
 2013-07-31 09:14:55 +00:00
Evgeniy Stepanov 9fbd981f99 [sanitizer] read() syscall hook. 
llvm-svn: 187414
 2013-07-30 13:04:43 +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
Peter Collingbourne 9058c07c95 Move UnpoisonMappedDSO to sanitizer_common. 
This is so DFSan will be able to use it.

Differential Revision: http://llvm-reviews.chandlerc.com/D1206

llvm-svn: 187372
 2013-07-29 19:09:49 +00:00
Chandler Carruth d45abe12a6 Turn off pipefail on msan tests to match the other sanitizers until 
someone can go through and update the RUN lines appropriately for the
new pipefail behavior.

llvm-svn: 187298
 2013-07-27 10:30:39 +00:00
Hans Wennborg 2e304b6ffd Use --driver-mode=g++ instead of -ccc-cxx; required after Clang r186605 
llvm-svn: 186607
 2013-07-18 20:48:50 +00:00
Alexey Samsonov 9916aa2d95 [Sanitizer] move strcpy and strncpy to common interceptors 
llvm-svn: 186408
 2013-07-16 12:51:53 +00:00
Timur Iskhodzhanov d7eb67774e Fix check_lint warnings in sanitizers' runtime libraries 
llvm-svn: 186328
 2013-07-15 16:11:39 +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 7160fb6511 [sanitizer] Update glob64 interceptor to handle GLOB_ALTDIRFUNC as well. 
llvm-svn: 185935
 2013-07-09 12:34:25 +00:00
Evgeniy Stepanov faba61a7bc [sanitizer] Support GLOB_ALTDIRFUNC in glob interceptor. 
llvm-svn: 185932
 2013-07-09 12:07:59 +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 f7f252d025 [sanitizer] Syscall handlers for clock_gettime and clock_getres. 
llvm-svn: 185913
 2013-07-09 08:54:59 +00:00
Evgeniy Stepanov 628d727749 [msan] Intercept pthread_key_create. 
llvm-svn: 185693
 2013-07-05 12:31:07 +00:00
Evgeniy Stepanov 717e0cd2a7 [sanitizer] Intercept tcgetattr. 
llvm-svn: 185626
 2013-07-04 14:03:31 +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 69a387e6ae [sanitizer] Fix GLOB_NOMATCH behaviour and refactor the interceptor a bit. 
llvm-svn: 185428
 2013-07-02 14:08:52 +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 1df4dfe87a [sanitizer] Intercept setlocale. 
llvm-svn: 185416
 2013-07-02 09:23:45 +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
Alexey Samsonov e71f37c1cd Define the path to llvm-symbolizer tool in a common config to reduce copy-paste 
llvm-svn: 185286
 2013-06-30 14:47:38 +00:00
Evgeniy Stepanov dec0f76c14 [sanitizer] Intercept ptrace. 
llvm-svn: 185142
 2013-06-28 11:02:43 +00:00
Evgeniy Stepanov f5cae53057 [msan] Optionally disable 2 tests (dlopen & gethostbyname). 
llvm-svn: 185076
 2013-06-27 13:21:00 +00:00
Alexey Samsonov ed4594b76a [MSan] Rename __msan_unpoision_param to __msan::UnpoisonParam - it shouldn't be in interface 
llvm-svn: 185062
 2013-06-27 07:50:56 +00:00
Evgeniy Stepanov 06d6c25141 [sanitizer] readdir and readdir_r interceptors. 
llvm-svn: 184950
 2013-06-26 15:00:53 +00:00
Evgeniy Stepanov 982d56abb8 [sanitizer] Move log_path to common flag and use it in MSan. 
llvm-svn: 184836
 2013-06-25 13:50:44 +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 830550ce4c [msan] Unpoison param-tls in signal handler wrapper. 
This an entry point from uninstrumented code.

llvm-svn: 184734
 2013-06-24 13:48:42 +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
Evgeniy Stepanov ae4e1ec4e6 [msan] Add keep_going runtime flag. 
llvm-svn: 184542
 2013-06-21 12:37:58 +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 cead69d4a3 [sanitizer] Handle SIOCGIFCONF ioctl. 
llvm-svn: 183529
 2013-06-07 15:49:38 +00:00
Evgeniy Stepanov 0b1f41b6f4 [sanitizer] ioctl interceptor. 
ASan: disabled by default
MSan: enabled by default
TSan: disabled
llvm-svn: 183517
 2013-06-07 13:00:47 +00:00
Alexey Samsonov f6630ecee9 Simplify lit configs for asan/lsan/msan unit tests 
llvm-svn: 183410
 2013-06-06 13:48:20 +00:00
Alexey Samsonov e3bf521b7c Remove a bunch of copy-paste: use common config for sanitizer lit/unit tests 
llvm-svn: 183407
 2013-06-06 13:28:37 +00:00
Evgeniy Stepanov 56050e8f69 [sanitizer] Fix __sanitizer_unaligned_* to work with unaligned data types. 
llvm-svn: 183224
 2013-06-04 13:49:10 +00:00
Evgeniy Stepanov 53c8c13bf1 [msan] Implement __sanitizer_unaligned_*. 
llvm-svn: 183221
 2013-06-04 13:08:36 +00:00
Evgeniy Stepanov 4717d2d494 [msan] Fix gcc build of msan runtime. 
llvm-svn: 182999
 2013-05-31 13:04:07 +00:00
Evgeniy Stepanov 96284becf4 [msan] Handle mixed track-origins and keep-going settings (compiler-rt part). 
Before this change, each module defined a weak_odr global __msan_track_origins
with a value of 1 if origin tracking is enabled, 0 if disabled. If there are
modules with different values, any of them may win. If 0 wins, and there is at
least one module with 1, the program will most likely crash.

With this change, __msan_track_origins is only emitted if origin tracking is
on. Then runtime library detects if there is at least one module with origin
tracking, and enables runtime support for it.

llvm-svn: 182996
 2013-05-31 12:04:08 +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 a4d08c4e87 [sanitizer] Move TSan and MSan recvmsg interceptors to common. 
llvm-svn: 182843
 2013-05-29 11:30:00 +00:00
Evgeniy Stepanov f28217ad0e [sanitizer] modf/modff/modfl interceptors. 
llvm-svn: 182838
 2013-05-29 10:03:11 +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
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
Evgeniy Stepanov a343d1d881 [msan] Fix line >80 chars. 
llvm-svn: 182578
 2013-05-23 11:51:47 +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 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 b99085b0b8 [MSan] Add empty default blacklist for MSan 
llvm-svn: 182382
 2013-05-21 13:55:56 +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
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 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 f1efb256f6 Add sanitizer syscall hooks to the tool's export lists. 
llvm-svn: 181790
 2013-05-14 13:55:21 +00:00
Sergey Matveev 6eff11e714 [msan] Common flags in MSan. 
llvm-svn: 181194
 2013-05-06 13:15:14 +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 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
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
Evgeniy Stepanov 7332acac4c [msan] Really disable replacement new and delete. 
llvm-svn: 179522
 2013-04-15 12:41:52 +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 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
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
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
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
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 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
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
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 f8109dd0f8 [libsanitizer] Unmapping the old cache partially invalidates the memory layout, so add 
a flag to skip cache update for cases when that's unacceptable (e.g. lsan).

Patch by Sergey Matveev (earthdok@google.com)

llvm-svn: 178000
 2013-03-26 10:34:37 +00:00
Richard Smith c91e327cba Build and install .syms files alongside sanitizer runtimes. These are used to 
specify which symbols are exported to DSOs when the sanitizer is statically
linked into a binary.

llvm-svn: 177784
 2013-03-23 00:31:07 +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 0af672326a [sanitizer] Replace more platform checks with SANITIZER_ constants. 
llvm-svn: 177400
 2013-03-19 14:33:38 +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 fe0199ea54 [msan] Options for switching between fast and cfi unwinders in run time. 
Does not change default behavior.

llvm-svn: 177057
 2013-03-14 11:47:03 +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 96f82f8ac3 [sanitizer] Fix lint. 
llvm-svn: 176943
 2013-03-13 10:20:35 +00:00
Alexey Samsonov d7ab381f53 [Sanitizer] Build ASan, TSan and MSan runtimes with -fno-rtti. 
llvm-svn: 176940
 2013-03-13 09:18:30 +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
Alexey Samsonov 06d3aa4884 [Sanitizer] Change MemoryMappingLayout methods to also report memory protection flags (for future use in leak checker). Patch by Sergey Matveev. 
llvm-svn: 176931
 2013-03-13 06:51:02 +00:00
Evgeniy Stepanov 26d5bc7fdf [msan] Use sptr instead of ptrdiff_t. 
llvm-svn: 176854
 2013-03-12 07:21:17 +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
Reid Kleckner 063dfe3244 [msan] Block reports from interceptors during _Unwind_Backtrace 
Summary:
I'm hitting a big recursive report from:
  uninit on strlen ->
  __msan::PrintWarningWithOrigin() ->
  __msan::GetStackTrace() ->
  __sanitizer::StackTrace::SlowUnwindStack() ->
  _Unwind_Backtrace() ->
  ... libgcc calls ->
  uninit on strlen() ->
  ... repeats

Reviewers: eugenis

Differential Revision: http://llvm-reviews.chandlerc.com/D497

llvm-svn: 176555
 2013-03-06 16:11:58 +00:00
Evgeniy Stepanov 218c582cb5 [msan] Lit tests for __attribute__((no_sanitize_memory)). 
llvm-svn: 176248
 2013-02-28 11:25:54 +00:00
Evgeniy Stepanov 57d6f737e6 [sanitizer] Add MSan to Makefile-based build rules. 
llvm-svn: 175737
 2013-02-21 13:55:54 +00:00
Evgeniy Stepanov 76dc3a81ea [msan] Use slow stack unwinder in UMR reports. 
llvm-svn: 175510
 2013-02-19 12:43:18 +00:00
Evgeniy Stepanov adaca58526 [msan] Fix ReExec on linux. 
execle(argv[0], ...) is wrong, because argv[0] may contain a PATH-resolvable
program name. Execute /proc/self/exe instead.

llvm-svn: 175504
 2013-02-19 11:09:29 +00:00
Evgeniy Stepanov ea61d08185 [sanitizer] Add interceptors for localtime and friends. 
llvm-svn: 175499
 2013-02-19 09:19:16 +00:00
Kostya Serebryany ec87e785a3 [msan] don't check shadow inside interceptors if we are inside symbolizer; add weak function __msan_default_options that overrides default options 
llvm-svn: 175040
 2013-02-13 07:19:47 +00:00
Evgeniy Stepanov e676f66fe3 [msan] Allow zero buf pointer in getcwd() interceptor. 
llvm-svn: 174970
 2013-02-12 14:36:22 +00:00
Alexey Samsonov 93686fc6f1 [MSan] symbolize correct PC when printing Summary message 
llvm-svn: 174956
 2013-02-12 10:46:39 +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
Kostya Serebryany 7b0b9b3b65 [msan] add strip_path_prefix flag; print error summary; don't crash while printing summary if debug info is missing. The tests will follow later once we establish the lit-like tests for msan. 
llvm-svn: 174595
 2013-02-07 08:04:56 +00:00
Kostya Serebryany bda64b4d40 [sanitizer] make the error messages from sanitizer_common contain the actual tool name 
llvm-svn: 174059
 2013-01-31 14:11:21 +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
Alexey Samsonov 49a32c1d08 [Sanitizer] update style checker script and fix namespace style warnings 
llvm-svn: 173910
 2013-01-30 07:45:58 +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 9f7e8c1433 [msan] A runtime call to support custom allocators. 
llvm-svn: 173687
 2013-01-28 13:52:49 +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
Evgeniy Stepanov 0e5becb830 [msan] Tests for ICmp handling. 
llvm-svn: 173456
 2013-01-25 15:39:11 +00:00
Kostya Serebryany fa79cd65e2 [sanitizer] fix calloc overflow in asan/tsan/msan 
llvm-svn: 173441
 2013-01-25 11:46:22 +00:00
Evgeniy Stepanov d1bfdc32b2 [msan] Allow waitpid while in __msan_init(). 
This is used in symbolizer init.

llvm-svn: 173263
 2013-01-23 14:22:05 +00:00
Evgeniy Stepanov ffffbefa43 [msan] gethostbyname interceptor. 
llvm-svn: 173249
 2013-01-23 10:43:38 +00:00
Evgeniy Stepanov fdf3fa69c2 [msan] Remove the trap handler code. 
llvm-svn: 173161
 2013-01-22 14:29:15 +00:00
Evgeniy Stepanov 03ee782bee [msan] Follow -msan-keep-going in reports from interceptors. 
llvm-svn: 173158
 2013-01-22 13:35:45 +00:00
Evgeniy Stepanov 8fdf7d0586 [msan] Fix linkage type of __msan_track_origins. 
llvm-svn: 173157
 2013-01-22 13:34:57 +00:00
Evgeniy Stepanov f9a7aba34a [msan] Simplify test code. 
llvm-svn: 173155
 2013-01-22 12:33:11 +00:00
Evgeniy Stepanov 2b65c0d1cf [msan] Test handling of volatile bitfields. 
llvm-svn: 173154
 2013-01-22 12:31:39 +00:00
Evgeniy Stepanov ef68259d26 [msan] Stop using volatile assignments as undef checks in MSan tests. 
A runtime call is used instead.
MSan will stop adding shadow checks on volatile stores soon.

llvm-svn: 173152
 2013-01-22 12:29:00 +00:00
Alexey Samsonov d0522c73b5 CMake: use add_compiler_rt_static_runtime to build TSan and MSan runtimes. No functionality change. 
llvm-svn: 172978
 2013-01-20 14:14:13 +00:00
Alexey Samsonov 163ab9d0a5 CMake: create AddCompilerRT module and implement convenience add_compiler_rt_object_library function 
llvm-svn: 172826
 2013-01-18 16:05:21 +00:00
Evgeniy Stepanov 01671c33ff [sanitizer] lint 
llvm-svn: 172817
 2013-01-18 13:12:56 +00:00
Evgeniy Stepanov a6c4a387ee [sanitizer] Rename 2 files *.h->*.inc as appropriate. 
Also add a missing include.

llvm-svn: 172814
 2013-01-18 13:01:18 +00:00
Alexey Samsonov 193b45f4fe CMake variables renaming: X86_64->x86_64 I386->i386 
llvm-svn: 172812
 2013-01-18 12:45:44 +00:00
Evgeniy Stepanov 91181eaa59 [sanitizer] Fix Mac build. 
llvm-svn: 172809
 2013-01-18 11:38:23 +00:00
Evgeniy Stepanov 222076e972 [sanitizer] Common *scanf interceptors. 
llvm-svn: 172805
 2013-01-18 11:17:23 +00:00
Kostya Serebryany 69fe0ba415 [sanitizer] reapply r172719, r172721-172723, r172725, and also fix the warning on Mac. 
llvm-svn: 172791
 2013-01-18 06:43:13 +00:00
Jakob Stoklund Olesen 7956e0094d Revert r172719, r172721-172723, and r172725. 
The r172719 patch broke the build on Mac, the others depended on it.

compiler-rt/lib/asan/asan_interceptors.cc:78:13: error: unused function
      'SetThreadName' [-Werror,-Wunused-function]
      static void SetThreadName(const char *name) {

Orignal headlines:

  [asan] attempting to fix the Mac build
  [asan] restructure read/pread/pread64 tests
  [sanitizer] move write/pwrite/pwrite64 interceptors to common
  [msan] start using common interceptors in msan
  [tsan] move prctl interceptor from asan to common_interceptors thus enabling it for tsan too

llvm-svn: 172763
 2013-01-17 22:51:56 +00:00
Kostya Serebryany b114d01849 [msan] start using common interceptors in msan 
llvm-svn: 172721
 2013-01-17 13:57:07 +00:00
Evgeniy Stepanov e3a325197a [msan] More interceptors. 
strtod and friends, dladdr, getrusage

llvm-svn: 172720
 2013-01-17 13:42:17 +00:00
Kostya Serebryany fdcfbda750 [sanitizer] better statistics for the large allocator 
llvm-svn: 172069
 2013-01-10 13:38:38 +00:00
Evgeniy Stepanov 9b52ce94db [msan] Set program exit code in keep-going mode. 
llvm-svn: 172057
 2013-01-10 11:17:55 +00:00
Kostya Serebryany 4a42cf69a6 [sanitizer] add statistics to the allocator; fix lint 
llvm-svn: 171161
 2012-12-27 14:09:19 +00:00
Alexey Samsonov c20f5d2246 Define COMPILER_RT_CAN_EXECUTE_TESTS variable on platforms where we can produce working binaries and use it in build rules for sanitizers tests 
llvm-svn: 171160
 2012-12-27 13:19:23 +00:00
Evgeniy Stepanov 8798729a22 [msan] Explicitly link unit tests with libstdc++. 
llvm-svn: 171151
 2012-12-27 08:44:19 +00:00
Evgeniy Stepanov fee82c68ae [msan] MSan, New Year Tree style. 
llvm-svn: 171106
 2012-12-26 10:16:45 +00:00
Evgeniy Stepanov 367dc64563 [msan] Refactor report printing. 
llvm-svn: 171105
 2012-12-26 09:32:05 +00:00
Evgeniy Stepanov 794a73124b [msan] Check for conflicting memory mappings. 
Check for conflicting memory mappings before attempting to map shadow.
Helps avoid segfault on Linux with disabled ASLR.

llvm-svn: 171100
 2012-12-26 06:37:23 +00:00
Evgeniy Stepanov 84f46d9993 [msan] Improve recvfrom interceptor. 
llvm-svn: 171071
 2012-12-25 16:51:57 +00:00
Evgeniy Stepanov a57662d7c4 Add MSan unit tests to check-msan and check-all. 
llvm-svn: 171065
 2012-12-25 13:10:15 +00:00
Evgeniy Stepanov f45d92bb22 MemorySanitizer unit tests. 
llvm-svn: 171062
 2012-12-25 12:39:56 +00:00
Evgeniy Stepanov 6722716d78 [msan] Fix header comments. 
llvm-svn: 171059
 2012-12-25 11:53:51 +00:00
Alexey Samsonov cd1e68ebb1 [Sanitizer] use INTERCEPT_FUNCTION(foo) instead of CHECK(INTERCEPT_FUNCTION(foo)) - this check may fail on Linux if user program defines its own version of library function foo 
llvm-svn: 170189
 2012-12-14 11:52:02 +00:00
Kostya Serebryany 07bb3925b0 [sanitizer] replace size_t with SIZE_T in interceptors (same for ssize_t, off_t and off64_t). This is done to avoid confusion and to make the code work with compilers that define size_t w/o any includes (MSVC) 
llvm-svn: 170103
 2012-12-13 06:31:40 +00:00
Kostya Serebryany e29883c10a [sanitizer] add OnMap/OnUmap callbacks to the allocator interface 
llvm-svn: 169985
 2012-12-12 14:32:18 +00:00
Evgeniy Stepanov 4e772db66a [msan] Remove an extra semicolon. 
llvm-svn: 169967
 2012-12-12 10:50:48 +00:00
Kostya Serebryany 9a58d399c7 [asan] add sanitizer_common/sanitizer_common_interceptors.h with pread/pread64/read interceptors. Use it in asan. Add asan tests for pread/etc. Add FIXME to tsan/msan interceptors 
llvm-svn: 169966
 2012-12-12 09:54:35 +00:00
Evgeniy Stepanov c5033786ba [msan] MemorySanitizer runtime. 
Initial commit of the MemorySanitizer runtime library.

llvm-svn: 169858
 2012-12-11 12:27:27 +00:00