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155 Commits

Author SHA1 Message Date
Viktor Kutuzov 8dee8575c6 [Sanitizers] Do not call internal_sigdelset() on non-Linux 
Differential Revision: http://reviews.llvm.org/D9220

llvm-svn: 235701
 2015-04-24 07:48:26 +00:00
Dmitry Vyukov 3658f6fcc4 tsan: support setuid call 
Currently the call hangs because the background thread
does not handle SIGSETXID signal.

llvm-svn: 235581
 2015-04-23 09:33:27 +00:00
Timur Iskhodzhanov 3d6c6fbef2 Cast an argument to mprotect syscall to uptr to fix X32 
llvm-svn: 234748
 2015-04-13 12:13:03 +00:00
Timur Iskhodzhanov ea1f332b79 Split Mprotect into MmapNoAccess and MprotectNoAccess to be more portable 
On Windows, we have to know if a memory to be protected is mapped or not.
On POSIX, Mprotect was semantically different from mprotect most people know.

llvm-svn: 234602
 2015-04-10 15:02:19 +00:00
Viktor Kutuzov 60f0aa8a42 [Sanitizers] Fix internal_ftruncate() to work on FreeBSD 
Differential Revision: http://reviews.llvm.org/D8551

llvm-svn: 233003
 2015-03-23 19:44:35 +00:00
Alexander Potapenko 141e420a81 [ASan] Distinguish between read, write and read-write file access modes in OpenFile. 
This is to fix mapping coverage files into memory on OSX.

llvm-svn: 232936
 2015-03-23 10:10:46 +00:00
Viktor Kutuzov 74c2001f3f [Sanitizers] Fix sanitizers to build on FreeBSD. 
Differential Revision: http://reviews.llvm.org/D8175

llvm-svn: 232072
 2015-03-12 18:10:06 +00:00
Dmitry Vyukov b79ac88155 asan: fix signal handling during stoptheworld 
The problem is that without SA_RESTORER flag, kernel ignores the handler. So tracer actually did not setup any handler.
Add SA_RESTORER flag when setting up handlers.
Add a test that causes SIGSEGV in stoptheworld callback.
Move SignalContext from asan to sanitizer_common to print better diagnostics about signal in the tracer thread.

http://reviews.llvm.org/D8005

llvm-svn: 230978
 2015-03-02 17:36:02 +00:00
Mohit K. Bhakkad 36f974d76b [LSan] [MIPS] adding support of LSan for mips64/mips64el arch 
Patch by Sagar Thakur

Reviewers: petarj, earthdok, kcc.

Subscribers:  samsonov, dsanders, mohit.bhakkad, Anand.Takale, llvm-commits.

Differential Revision: http://reviews.llvm.org/D7013

llvm-svn: 229830
 2015-02-19 07:30:39 +00:00
Alexey Samsonov a11a86b9ce [TSan] Fix Go build. 
llvm-svn: 227634
 2015-01-30 23:04:57 +00:00
Viktor Kutuzov 07e6c00171 [Sanitizers] Introduce GET_LINK_MAP_BY_DLOPEN_HANDLE() macro 
Differential Revision: http://reviews.llvm.org/D7233

llvm-svn: 227570
 2015-01-30 12:43:52 +00:00
Yury Gribov 2bbad68617 [Sanitizer] Make BlockingMutex really linker initialized. 
Differential Revision: http://reviews.llvm.org/D7171

llvm-svn: 227560
 2015-01-30 06:20:43 +00:00
Kostya Serebryany 3c052cc051 [asan] use getrusage as an alternative to reading /proc/self/statm. Also move GetRSS to sanitizer_linux_libcdep.cc (no change in the function itself) 
llvm-svn: 227416
 2015-01-29 02:54:39 +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
Alexey Samsonov 7eba6dfdaa [TSan] Fix Go build. 
llvm-svn: 225336
 2015-01-07 02:12:41 +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
Jay Foad d348d7c757 [Sanitizer] Fix GetRSS on Linux with non-4k pages 
Summary:
The numbers in /proc/self/statm are in pages, not in fixed 4k units.
This fixes Linux/hard_rss_limit_mb_test.cc on my PowerPC64 box which
has 64k pages.

Reviewers: kcc, willschm

Reviewed By: willschm

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D6717

llvm-svn: 224522
 2014-12-18 16:24:01 +00:00
Kostya Serebryany 43eb7735f2 [asan] new flag: hard_rss_limit_mb 
llvm-svn: 224353
 2014-12-16 19:13:01 +00:00
Mohit K. Bhakkad a94a037528 internal_stat for mips64 
llvm-svn: 224326
 2014-12-16 07:11:08 +00:00
Dmitry Vyukov a1038b1081 tsan: fix Go build 
GetRSS is used in Go build.

llvm-svn: 224023
 2014-12-11 16:12:45 +00:00
Kostya Serebryany 6c54a6b5dd [asan] move GetRSS from tsan to sanitizer_common 
llvm-svn: 223730
 2014-12-09 01:22:59 +00:00
Alexey Samsonov 3da2b06593 Add missing #include to fix Android build. 
llvm-svn: 223157
 2014-12-02 21:40:41 +00:00
Dmitry Vyukov 8a3934f85b sanitizer_common: fix function w/o return 
When SANITIZER_USES_CANONICAL_LINUX_SYSCALLS the function misses return statement.

llvm-svn: 222532
 2014-11-21 13:55:19 +00:00
Alexey Samsonov 4925fd4b05 Fix -Wcast-qual warnings in sanitizers 
llvm-svn: 221936
 2014-11-13 22:40:59 +00:00
Yury Gribov ecfa592671 Removed r221896, it seems to break build in various ways. 
llvm-svn: 221912
 2014-11-13 19:37:30 +00:00
Yury Gribov 17072ef348 [ASan] Add process basename to log name and error message to simplify analysis of sanitized systems logs. 
Reviewed at http://reviews.llvm.org/D5724

llvm-svn: 221896
 2014-11-13 16:01:23 +00:00
Evgeniy Stepanov bc496dab07 [asan] Delay system log initialization on Android. 
Writing to system log requires libc interceptors to be initialized.
Fixes crashes with verbosity=1 on newer Android builds.

llvm-svn: 217764
 2014-09-15 11:37:40 +00:00
Viktor Kutuzov d0907ae222 Fix getting environment variables for sanitizers needs on FreeBSD 
Differential Revision: http://reviews.llvm.org/D4229

llvm-svn: 212690
 2014-07-10 08:53:29 +00:00
Dmitry Vyukov f9c22916d5 tsan: fix freebsd build 
freebsd does not have /proc/self/environ

llvm-svn: 211417
 2014-06-20 22:49:41 +00:00
Dmitry Vyukov 3fc095e031 tsan: remove unused header include 
llvm-svn: 211385
 2014-06-20 18:28:34 +00:00
Viktor Kutuzov 9cd9b4ce0c Support getting executable's name for sanitizers needs on FreeBSD 
llvm-svn: 209805
 2014-05-29 12:12:42 +00:00
Alexey Samsonov 5bcd1d8a8f [Sanitizer] Always prefer cached contents of /proc/self/exe if it's available 
llvm-svn: 209773
 2014-05-28 21:23:53 +00:00
Evgeniy Stepanov 567e516015 [asancov] Write coverage directly to a memory-mapped file. 
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
Greg Fitzgerald 7b15cf8884 On AArch64, use clone() instead of fork() 
Patch by Gideon Billings.

Differential Revision: http://reviews.llvm.org/D3903

llvm-svn: 209641
 2014-05-26 23:44:55 +00:00
Kostya Serebryany b9aa538db1 [sanitizer] fix linux_dirent for SANITIZER_X32; based on patch by H.J. Lu 
llvm-svn: 209281
 2014-05-21 08:21:13 +00:00
Kostya Serebryany 84019ff7e5 Cast pointers to uptr when calling internal_syscall 
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
Sergey Matveev 6d8b9a747c [sanitizer] Fix go build following r209121. 
llvm-svn: 209136
 2014-05-19 16:08:53 +00:00
Sergey Matveev 6cb47a083b [sanitizer] Support sandboxing in sanitizer coverage. 
Summary:
Sandboxed code may now pass additional arguments to
__sanitizer_sandbox_on_notify() to force all coverage data to be dumped to a
single file (the default is one file per module). The user may supply a file or
socket to write to. The latter option can be used to broker out the file writing
functionality. If -1  is passed, we pre-open a file.

llvm-svn: 209121
 2014-05-19 12:53:03 +00:00
Alexander Potapenko 291b827890 [libsanitizer] Fix the return type of internal_fork 
llvm-svn: 208714
 2014-05-13 17:31:09 +00:00
Alexander Potapenko 4a6cac4382 [libsanitizer] Use internal_fork() to spawn the symbolizer process. 
This should fix https://code.google.com/p/thread-sanitizer/issues/detail?id=61

llvm-svn: 208707
 2014-05-13 16:17:54 +00:00
Alexey Samsonov 18adbc361a Remove sanitizer_linux_libcdep.cc from TSan-Go build 
llvm-svn: 203238
 2014-03-07 13:17:32 +00:00
Alexey Samsonov 78a6d2073f [FreeBSD] Port sanitizers' syscalls. 
Patch by Viktor Kutuzov!

llvm-svn: 203227
 2014-03-07 10:03:54 +00:00
Evgeniy Stepanov f4dcf77623 [asan] Fix printing of long reports to logcat on Android. 
__android_log_write has an implicit message length limit.
Print one line at a time.

llvm-svn: 202250
 2014-02-26 09:39:55 +00:00
Kostya Serebryany c98ce28533 [sanitizer] AArch64 sanitizer support; patch by Christophe Lyon and Yvan Roux 
llvm-svn: 201303
 2014-02-13 07:50:20 +00:00
Evgeniy Stepanov 01cd8ae204 [asan] Read extra flags from a system property on activation on Android. 
llvm-svn: 200550
 2014-01-31 14:36:55 +00:00
Alexander Potapenko 789e3e1b7c [ASan] Move the SIGSEGV/SIGBUS handling to sanitizer_common 
This change is a part of refactoring intended to have common signal handling behavior in all tools.
This particular CL moves InstallSignalHandlers() into sanitizer_common (making it InstallDeadlySignalHandlers()), but doesn't enable default signal handlers for any tool other than ASan.

llvm-svn: 200542
 2014-01-31 13:10:07 +00:00
Alexander Potapenko e925e53114 Fix compilation: don't convert NULL to a pointer-incompatible type. 
llvm-svn: 200536
 2014-01-31 11:44:15 +00:00
Alexander Potapenko d5802fe548 Make signal-related functions use __sanitizer_* structures instead of __sanitizer_kernel_* ones. 
Also rename internal_sigaction() into internal_sigaction_norestorer(), as this function doesn't fully
implement the sigaction() functionality on Linux.

This change is a part of refactoring intended to have common signal handling behavior in all tools.

llvm-svn: 200535
 2014-01-31 11:29:51 +00:00
Evgeniy Stepanov 350fe4b1af [asan] Android logging. 
This change duplicates all ASan output to system log on Android.

llvm-svn: 199887
 2014-01-23 11:34:41 +00:00
Alexey Samsonov 2f392d237c [Sanitizer] Move OS-specific code for MemoryMappingLayout into separate source files. 
llvm-svn: 198003
 2013-12-25 08:01:16 +00:00