Commit Graph

1573 Commits

Author SHA1 Message Date
Evgeniy Stepanov a2edd9159a [sanitizer] Make unrecognized flags not fatal.
Print a warning at verbosity=1 and higher instead of dying immediately.

llvm-svn: 226458
2015-01-19 12:22:57 +00:00
Evgeniy Stepanov 6c6e589c1f [sanitizer] Switch flag parsing to LowLevelAlloc.
InternalAlloc is quite complex and its behavior may depend on the values of
flags. As such, it should not be used while parsing flags.

Sadly, LowLevelAlloc does not support deallocation of memory.

llvm-svn: 226453
2015-01-19 11:47:13 +00:00
Evgeniy Stepanov 3231dd3c1c [sanitizer] Simplify code in flag parser.
llvm-svn: 226452
2015-01-19 10:54:36 +00:00
Viktor Kutuzov abfacbdf3a [Sanitizers] Order initialization of coverage and guard arrays
Differential Revision: http://reviews.llvm.org/D6892

llvm-svn: 226440
2015-01-19 09:41:52 +00:00
Hal Finkel 0e39c55d22 [sanitizer] Adjust max read size in FlagHandlerInclude
Setting the maximum read size in FlagHandlerInclude to 2^15 might be a good
default, but causes the read to fail on systems with a page size larger than
that (ReadFileToBuffer(...) will fail if the maximum allowed size is less than
the value returned by GetPageSizeCached()). For example, on my PPC64/Linux
system, GetPageSizeCached() returns 2^16. In case the page size is larger, use
that instead.

llvm-svn: 226368
2015-01-17 03:31:43 +00:00
Evgeniy Stepanov 5450a9635a [sanitizer] Additional error checking.
llvm-svn: 226279
2015-01-16 15:25:16 +00:00
Viktor Kutuzov 05f6929932 [Sanitizers] Intercept clock_gettime() on FreeBSD
Committed unreviewed with permission.

llvm-svn: 226276
2015-01-16 14:54:39 +00:00
Viktor Kutuzov 068ece9679 [Sanitizers] Intercept lgamma_r() on FreeBSD
Committed unreviewed with permission.

llvm-svn: 226275
2015-01-16 14:52:17 +00:00
Evgeniy Stepanov 29235e374c [sanitizer] Fix bashism in check_lint.sh.
llvm-svn: 226267
2015-01-16 10:20:49 +00:00
Evgeniy Stepanov e0009356ba [sanitizer] Cleanup linter temporary files.
llvm-svn: 226266
2015-01-16 10:09:56 +00:00
Evgeniy Stepanov db20539d3a [sanitizer] Fix compiler warning in the flag parser code.
llvm-svn: 226263
2015-01-16 09:32:31 +00:00
Evgeniy Stepanov bc14dd46f2 [sanitizer] Implement include= option.
Allows loading sanitizer options from file.

llvm-svn: 226175
2015-01-15 16:26:59 +00:00
Evgeniy Stepanov f294d5b829 [sanitizer] Flag parser rewrite.
The new parser is a lot stricter about syntax, reports unrecognized
flags, and will make it easier to implemented some of the planned features.

llvm-svn: 226169
2015-01-15 15:13:43 +00:00
Evgeniy Stepanov 3f2e761826 [asan] Fix uninit in coverage.
pc_fd was not initialized to (-1) on some code paths, resulting in the program
erroneously closing stdin when reinitializing coverage.

llvm-svn: 225637
2015-01-12 17:13:20 +00:00
Jay Foad 335c08e56c [ASan] Handle SIGBUS on Linux.
Summary:
On Linux in some situations we can get SIGBUS instead of SIGSEGV on
stack overflow, so asan should handle SIGBUS as well as SIGSEGV.

https://code.google.com/p/address-sanitizer/issues/detail?id=369

Reviewers: samsonov, glider

Reviewed By: glider

Subscribers: glider, llvm-commits

Differential Revision: http://reviews.llvm.org/D6923

llvm-svn: 225630
2015-01-12 13:46:37 +00:00
Kostya Serebryany 96fc9a2537 [sanitizer] use the right memory order
llvm-svn: 225546
2015-01-09 21:01:34 +00:00
Alexey Samsonov a04ca22edf Fix memory leaks in GetListOfModules() users.
llvm-svn: 225472
2015-01-08 22:31:14 +00:00
Alexey Samsonov b40fd1b24e [Sanitizer] Remove the hardcoded limit of address ranges in LoadedModule.
This should fix https://code.google.com/p/address-sanitizer/issues/detail?id=368.

llvm-svn: 225469
2015-01-08 22:03:05 +00:00
Viktor Kutuzov e01a595dad [Sanitizers] Fix internal_lseek() to work on FreeBSD
Differential Revision: http://reviews.llvm.org/D6825

llvm-svn: 225443
2015-01-08 13:28:22 +00:00
Alexey Samsonov 7eba6dfdaa [TSan] Fix Go build.
llvm-svn: 225336
2015-01-07 02:12:41 +00:00
Kostya Serebryany 7e85a9216e [asan] add a flag soft_rss_limit_mb
llvm-svn: 225323
2015-01-06 23:53:32 +00:00
Alexey Samsonov bdbdd3fd4e [Sanitizer] Use COMMON_FLAG macro to describe common runtime flags.
Summary:
Introduce a single place where we specify flag type, name, default
value, and description. This removes a large amount of boilerplate
and ensures we won't leave flags uninitialized.

Test Plan: regression test suite

Reviewers: kcc

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6851

llvm-svn: 225239
2015-01-06 02:44:05 +00:00
Kostya Serebryany e02839b60f [asan/tracing] write the trace using a sequence of internal_write calls instead of just one (otherwise files of > 2Gb are trunkated). Also a minor adjustment to the trace collection.
llvm-svn: 225230
2015-01-06 01:11:23 +00:00
Alexey Samsonov df3aeb8e71 Remove TSAN_DEBUG in favor of SANITIZER_DEBUG.
llvm-svn: 225111
2015-01-03 04:29:12 +00:00
Kostya Serebryany 0f53d9a2ee [asan/tracing] extend the test a bit more, simplify the tracing code, add a guard page to trace array, fix the trace IDs before dumping
llvm-svn: 225108
2015-01-03 02:07:58 +00:00
Kostya Serebryany d421db05bb [asan] simplify the tracing code, make it use the same guard variables as coverage
llvm-svn: 225103
2015-01-03 00:54:43 +00:00
Alexey Samsonov c426c337ed Revert "Revert r224736: "[Sanitizer] Make CommonFlags immutable after initialization.""
Fix test failures by introducing CommonFlags::CopyFrom() to make sure
compiler doesn't insert memcpy() calls into runtime code.

Original commit message:
Protect CommonFlags singleton by adding const qualifier to
common_flags() accessor. The only ways to modify the flags are
SetCommonFlagsDefaults(), ParseCommonFlagsFromString() and
OverrideCommonFlags() functions, which are only supposed to be
called during initialization.

llvm-svn: 225088
2015-01-02 21:28:37 +00:00
Chandler Carruth 6173e869eb Revert r224736: "[Sanitizer] Make CommonFlags immutable after initialization."
We've got some internal users that either aren't compatible with this or
have found a bug with it. Either way, this is an isolated cleanup and so
I'm reverting it to un-block folks while we investigate. Alexey and
I will be working on fixing everything up so this can be re-committed
soon. Sorry for the noise and any inconvenience.

llvm-svn: 225079
2015-01-02 09:59:38 +00:00
Kostya Serebryany 77c5c1a66d [asan] fix coverage between fork() and exec(): reinitialize the guards after fork()
llvm-svn: 225016
2014-12-30 23:16:12 +00:00
Kostya Serebryany a7ee2734cf [asan] add flag coverage_pcs. When false, the coverage is not dumped as PCs. Useful e.g. if the user only needs coverage is bitset
llvm-svn: 225002
2014-12-30 19:55:04 +00:00
Kostya Serebryany aa185bfc4b [asan] change _sanitizer_cov_module_init to accept int* instead of int**
llvm-svn: 224999
2014-12-30 19:29:28 +00:00
Timur Iskhodzhanov a023e06618 Follow-up to r224987: fix a lint warning
llvm-svn: 224988
2014-12-30 15:30:19 +00:00
Timur Iskhodzhanov 64fc8e4a5a [ASan/Win] Sort the list of modules when we fail to reserve the shadow memory range
llvm-svn: 224987
2014-12-30 14:44:12 +00:00
Kuba Brecka c52f300698 [sanitizer-common] Fixing the ASan test build failure on OS X
The change in r224819 started using internal_unlink in a sanitizer_common unit test. For some reason, internal_unlink is not defined in sanitizer_mac.cc, fixing that.

llvm-svn: 224910
2014-12-29 02:18:59 +00:00
Daniel Jasper 1e8eafd6c8 Escape ? to silence GCC warning about trigraphs.
llvm-svn: 224863
2014-12-26 18:21:34 +00:00
Evgeniy Stepanov 9e609426a7 [sanitizer] Treat \r, \n, \t as flag separators.
llvm-svn: 224858
2014-12-26 16:09:15 +00:00
Timur Iskhodzhanov a04b33b9de [ASan/Win] Add basic support for MemoryRangeIsAvailable and DumpProcessMap to make it easier to debug startup shadow mapping failures
llvm-svn: 224856
2014-12-26 14:28:32 +00:00
Evgeniy Stepanov 103084691d [asan] Bump coverage size limit on 32-bit platforms.
This increases the limit from 4M locations to 16M, reserving
64Mb virtual memory. Chrome has >5M unique coverage locations with coverage=3.

llvm-svn: 224855
2014-12-26 13:54:11 +00:00
Evgeniy Stepanov 05dc4be0dc [asan] Allow enabling coverage at activation.
This is a re-commit of r224838 + r224839, previously reverted in r224850.
Test failures were likely (still can not reproduce) caused by two lit tests
using the same name for an intermediate build target.

llvm-svn: 224853
2014-12-26 12:32:32 +00:00
Timur Iskhodzhanov b8373bc119 [ASan/Win] Suppress error messaging when Abort() is called
This will prevent ASan bots from hanging / timing out

llvm-svn: 224852
2014-12-26 12:25:54 +00:00
Evgeniy Stepanov f8c7e25560 Revert r224838, r224839.
Flaky failures on the build bots.

llvm-svn: 224850
2014-12-26 10:19:56 +00:00
Evgeniy Stepanov b723834d82 [sanitizer] Tweak sancov.py output.
llvm-svn: 224841
2014-12-25 16:03:24 +00:00
Evgeniy Stepanov 01b922d9f2 [sanitizer] sancov.py: print status to stderr
llvm-svn: 224840
2014-12-25 16:01:09 +00:00
Evgeniy Stepanov 300d29a75d [asan] Disable __sanitizer_cov_dump registration on Windows.
Looks like we can't use atexit() during ASan initialization on Windows.

llvm-svn: 224839
2014-12-25 15:11:00 +00:00
Evgeniy Stepanov be9a53fec6 [asan] Allow enabling coverage at activation.
llvm-svn: 224838
2014-12-25 14:26:45 +00:00
Evgeniy Stepanov 5a09b2cdeb [sanitizer] Disable InternalMmapWithOffset test on OSX.
llvm-svn: 224822
2014-12-24 13:59:35 +00:00
Evgeniy Stepanov ca9e045570 [sanitizer] Fix off-by-8x in direct coverage.
File mapping offset was calculated by offsetting (uptr *) instead of (char *).

llvm-svn: 224821
2014-12-24 13:57:11 +00:00
Evgeniy Stepanov 40b16f4037 [sanitizer] Disable InternalMmapWithOffset test on Windows.
llvm-svn: 224820
2014-12-24 13:05:21 +00:00
Evgeniy Stepanov 98211121ab [sanitizer] mmap2 syscall works with 4096-byte units instead of bytes.
Ouch.

llvm-svn: 224819
2014-12-24 12:58:09 +00:00
Kostya Serebryany 9fdeb37bd3 [asan] change the coverage collection scheme so that we can easily emit coverage for the entire process as a single bit set, and if coverage_bitset=1 actually emit that bitset
llvm-svn: 224789
2014-12-23 22:32:17 +00:00