b044353bb2
[asan] under handle_abort=1 option intercept SIGABRT in addition to SIGSEGV/SIGBUS. Among other things this will allow to set up a death callback for SIGABRT and thus properly handle assert() in lib/Fuzzer
...
llvm-svn: 236474
2015-05-05 01:37:33 +00:00
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
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
3d6c6fbef2
Cast an argument to mprotect syscall to uptr to fix X32
...
llvm-svn: 234748
2015-04-13 12:13:03 +00:00
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
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
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
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
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
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
a11a86b9ce
[TSan] Fix Go build.
...
llvm-svn: 227634
2015-01-30 23:04:57 +00:00
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
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
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
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
7eba6dfdaa
[TSan] Fix Go build.
...
llvm-svn: 225336
2015-01-07 02:12:41 +00:00
98211121ab
[sanitizer] mmap2 syscall works with 4096-byte units instead of bytes.
...
Ouch.
llvm-svn: 224819
2014-12-24 12:58:09 +00:00
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
43eb7735f2
[asan] new flag: hard_rss_limit_mb
...
llvm-svn: 224353
2014-12-16 19:13:01 +00:00
a94a037528
internal_stat for mips64
...
llvm-svn: 224326
2014-12-16 07:11:08 +00:00
a1038b1081
tsan: fix Go build
...
GetRSS is used in Go build.
llvm-svn: 224023
2014-12-11 16:12:45 +00:00
6c54a6b5dd
[asan] move GetRSS from tsan to sanitizer_common
...
llvm-svn: 223730
2014-12-09 01:22:59 +00:00
3da2b06593
Add missing #include to fix Android build.
...
llvm-svn: 223157
2014-12-02 21:40:41 +00:00
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
4925fd4b05
Fix -Wcast-qual warnings in sanitizers
...
llvm-svn: 221936
2014-11-13 22:40:59 +00:00
ecfa592671
Removed r221896, it seems to break build in various ways.
...
llvm-svn: 221912
2014-11-13 19:37:30 +00:00
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
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
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
f9c22916d5
tsan: fix freebsd build
...
freebsd does not have /proc/self/environ
llvm-svn: 211417
2014-06-20 22:49:41 +00:00
3fc095e031
tsan: remove unused header include
...
llvm-svn: 211385
2014-06-20 18:28:34 +00:00
9cd9b4ce0c
Support getting executable's name for sanitizers needs on FreeBSD
...
llvm-svn: 209805
2014-05-29 12:12:42 +00:00
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
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
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
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
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
6d8b9a747c
[sanitizer] Fix go build following r209121.
...
llvm-svn: 209136
2014-05-19 16:08:53 +00:00
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
291b827890
[libsanitizer] Fix the return type of internal_fork
...
llvm-svn: 208714
2014-05-13 17:31:09 +00:00
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
18adbc361a
Remove sanitizer_linux_libcdep.cc from TSan-Go build
...
llvm-svn: 203238
2014-03-07 13:17:32 +00:00
78a6d2073f
[FreeBSD] Port sanitizers' syscalls.
...
Patch by Viktor Kutuzov!
llvm-svn: 203227
2014-03-07 10:03:54 +00:00
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
c98ce28533
[sanitizer] AArch64 sanitizer support; patch by Christophe Lyon and Yvan Roux
...
llvm-svn: 201303
2014-02-13 07:50:20 +00:00
01cd8ae204
[asan] Read extra flags from a system property on activation on Android.
...
llvm-svn: 200550
2014-01-31 14:36:55 +00:00
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
e925e53114
Fix compilation: don't convert NULL to a pointer-incompatible type.
...
llvm-svn: 200536
2014-01-31 11:44:15 +00:00
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
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
2f392d237c
[Sanitizer] Move OS-specific code for MemoryMappingLayout into separate source files.
...
llvm-svn: 198003
2013-12-25 08:01:16 +00:00
82d0679e92
[asan] attempting to fix x32 build (see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59018 )
...
llvm-svn: 194155
2013-11-06 17:47:39 +00:00
791e65dcfb
Overhaul the symbolizer interface.
...
This moves away from creating the symbolizer object and initializing the
external symbolizer as separate steps. Those steps now always take place
together.
Sanitizers with a legacy requirement to specify their own symbolizer path
should use InitSymbolizer to initialize the symbolizer with the desired
path, and GetSymbolizer to access the symbolizer. Sanitizers with no
such requirement (e.g. UBSan) can use GetOrInitSymbolizer with no need for
initialization.
The symbolizer interface has been made thread-safe (as far as I can
tell) by protecting its member functions with mutexes.
Finally, the symbolizer interface no longer relies on weak externals, the
introduction of which was probably a mistake on my part.
Differential Revision: http://llvm-reviews.chandlerc.com/D1985
llvm-svn: 193448
2013-10-25 23:03:29 +00:00
b745eec4e4
Use internal_memset to initialize this variable.
...
Otherwise, the compiler may use memset in non-optimized builds, which is
forbidden in the nolibc part of the runtime.
llvm-svn: 193098
2013-10-21 18:11:57 +00:00
f54835f768
tsan: move kernel struct definition from sanitizer_linux.h to sanitizer_platform_limits_posix.h
...
llvm-svn: 192695
2013-10-15 12:57:59 +00:00
59c850de6d
tsan: implement internal syscall-based versions of sigaction/sigprocmask
...
use them in stoptheworld
fixes applications that intercept sigaction/sigprocmask
llvm-svn: 192686
2013-10-15 11:31:51 +00:00
398fb700a2
[sanitizer] Do not break the CFI unwind chain in clone().
...
Fixes build on clang 3.2, which doesn't support cfi_undefined. This change
doesn't seem to break the slow unwinder. Even if it does, the worst thing that
could happen is that we would not see a backtrace when a fatal error happens
under StopTheWorld.
llvm-svn: 192196
2013-10-08 16:38:39 +00:00
885136d3b6
Check the function we just called for errors, not an incoming argument. Noticed
...
by inspection.
llvm-svn: 190828
2013-09-17 00:23:28 +00:00
4a2447fd81
[TSan] Use --whole-archive around TSan runtime in old TSan makefiles. Fix a Go build
...
llvm-svn: 190513
2013-09-11 11:06:06 +00:00
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
94377c337b
[libsanitizer] Remove an unused variable introduced in r189789
...
llvm-svn: 189790
2013-09-03 11:30:07 +00:00
7e1c51988d
[TSan] Move the /proc/self/maps parsing logic to sanitizer_common
...
Provide a generic way for the tools to generate memory profiles from contents of /proc/self/maps
llvm-svn: 189789
2013-09-03 11:09:16 +00:00
69931c5841
[sanitizer_common] Add internal_clone().
...
Add a wrapper for the clone syscall for use in StopTheWorld. We
implement it only for x86_64, so stop building StopTheWorld for other platforms
(no one uses it outside x86_64 anyway).
See https://code.google.com/p/address-sanitizer/issues/detail?id=214 for why we
can't use the glibc clone() wrapper.
llvm-svn: 189753
2013-09-02 11:36:19 +00:00
de8e3a097c
Conditionalise inclusion of link.h on !SANITIZER_ANDROID.
...
Hopefully fixes the Android build.
Differential Revision: http://llvm-reviews.chandlerc.com/D1551
llvm-svn: 189696
2013-08-30 20:50:12 +00:00
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
573ba3499e
[sanitizer] Disable ForEachMappedRegion on Android.
...
It needs interface that is missing from the NDK, and it is not used on Android anyway.
llvm-svn: 187407
2013-07-30 08:39:16 +00:00
e572e17a8e
Fix warning.
...
llvm-svn: 187373
2013-07-29 20:13:41 +00:00
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
46cbc2ed50
tsan: fix unitialized read warning under newer gcc (it does not have visibility into asm)
...
llvm-svn: 186495
2013-07-17 06:56:47 +00:00
3a7c6d689d
[asan] workaround for the quemu bug in proc maps ( http://code.google.com/p/address-sanitizer/issues/detail?id=160 )
...
llvm-svn: 182922
2013-05-30 11:00:08 +00:00
112e5ba281
[nolibc] Unweak SymbolizerPrepareForSandboxing and move it to libc-independent part.
...
Fixes the Go build.
Differential Revision: http://llvm-reviews.chandlerc.com/D877
llvm-svn: 182851
2013-05-29 12:11:43 +00:00
fb1a9f17e3
[nolibc] Make SymbolizerPrepareForSandboxing weak and optional.
...
Differential Revision: http://llvm-reviews.chandlerc.com/D872
llvm-svn: 182765
2013-05-28 11:05:05 +00:00
6535f510a3
[ASan] Introduce SymbolizerPrepareForSandboxing(), which is a no-op on every platform except Linux (because we don't support sandboxing anywhere else yet)
...
On Linux we pre-cache the value of readlink("/proc/self/exe"), so that it can be later used when the sandbox has been turned on.
llvm-svn: 182579
2013-05-23 11:53:36 +00:00
b1333fe831
[sanitizer] fix asan on the platforms where the page size is not a compile-time constant (or at least where EXEC_PAGESIZE may not be trustworthy), e.g. powerpc64.
...
llvm-svn: 182351
2013-05-21 06:15:50 +00:00
b69b8a4a8f
[nolibc] Move GetPageSize to the individual platforms.
...
GetPageSize wraps sysconf(_SC_PAGESIZE) on POSIX platforms, but
sysconf resides in libc. To make this libc-independent on Linux,
move the wrapper to sanitizer_mac.cc and return the Linux-specific
constant EXEC_PAGESIZE in the sanitizer_linux.cc implementation.
llvm-svn: 182303
2013-05-20 17:05:29 +00:00
0c8df4e1d8
[nolibc] Move libc-dependent sanitizer_linux.cc code to sanitizer_linux_libcdep.cc.
...
llvm-svn: 182292
2013-05-20 15:57:44 +00:00
d5169edc36
[nolibc] Make GetArgsAndEnv libc-independent.
...
__libc_stack_end is made into a weak symbol if possible. If libc is
not linked, read args and environment from /proc.
llvm-svn: 182276
2013-05-20 14:25:32 +00:00
af05543c86
[sanitizer] LibraryNameIs in sanitizer_linux
...
llvm-svn: 181787
2013-05-14 13:24:46 +00:00
6f4be19b57
[nolibc] Change internal syscall API to remove reliance on libc's errno.
...
This change moves to a model where the error value of a system call is
potentially contained in the return value itself rather than being
implicit in errno. The helper function internal_iserror can be used
to extract the error value from a return value. On platforms other
than Linux/x86_64 this still uses errno, but other platforms are free
to port their error handling to this new model.
Differential Revision: http://llvm-reviews.chandlerc.com/D756
llvm-svn: 181436
2013-05-08 14:43:49 +00:00
3704453368
[sanitizer] Fixed InitTlsSize for Android.
...
llvm-svn: 181330
2013-05-07 16:29:26 +00:00
88d0c664ef
[sanitizer] Fixed includes in sanitizer_linux.cc for Android.
...
llvm-svn: 181327
2013-05-07 15:38:53 +00:00
954c6ef10f
[sanitizer] Move GetThreadStackAndTls from TSan to sanitizer_common.
...
Move this function to sanitizer_common because LSan uses it too. Also, fix a bug
where the TLS range reported for main thread was off by the size of the thread
descriptor from libc (TSan doesn't care much, but for LSan it's critical).
llvm-svn: 181322
2013-05-07 14:41:43 +00:00
517118e6b4
[sanitizer] Sanitizer __internal_*stat interface.
...
With this change, __internal_*stat always expect a "struct stat *" argument.
This avoids stat/stat64 caller-side confusion (sanitizer_common tests already
made this mistake), and allows the use of __internal_fstat() as a drop-in
replacement for libc's fstat().
llvm-svn: 181311
2013-05-07 12:47:04 +00:00
b2151b8200
Revert r180599 "[sanitizer] Clear LD_PRELOAD when forking an external symbolizer."
...
llvm-svn: 180602
2013-04-26 13:01:40 +00:00
3c8fbe1013
[sanitizer] Clear LD_PRELOAD when forking an external symbolizer.
...
llvm-svn: 180599
2013-04-26 11:35:05 +00:00
f36c5a8431
Revert r180082 and add a test for SetEnv function
...
llvm-svn: 180098
2013-04-23 12:49:12 +00:00
e7540e3561
[Sanitizer] Delete unused function
...
llvm-svn: 180082
2013-04-23 08:18:09 +00:00
46b8665ea4
Remove InternalAlloc/InternalFree calls from StopTheWorld. Patch by Sergey Matveev.
...
llvm-svn: 178855
2013-04-05 07:41:21 +00:00
a0e28a7aaa
[Sanitizer] Kill the remainders of platform defines in favor of SANITIZER_ defines
...
llvm-svn: 178627
2013-04-03 07:24:35 +00:00
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
510ad11800
tsan: add SetEnv() function that can be used in frontends
...
llvm-svn: 177857
2013-03-25 09:56:45 +00:00
78693730a4
tsan: use a single background thread for memory profiler and memory flush (and later for symbolizer flush)
...
llvm-svn: 177627
2013-03-21 06:24:31 +00:00
b6eace8a2f
tsan: add internal_unlink() function
...
llvm-svn: 177510
2013-03-20 10:28:36 +00:00
0af672326a
[sanitizer] Replace more platform checks with SANITIZER_ constants.
...
llvm-svn: 177400
2013-03-19 14:33:38 +00:00
6d02c1c598
[sanitizer] Avoid use of uintptr_t.
...
llvm-svn: 177384
2013-03-19 09:39:15 +00:00
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
a097f7b1e3
[Sanitizer] Add default constructor for BlockingMutex
...
llvm-svn: 177072
2013-03-14 13:30:56 +00:00
5697b58ec4
[sanitizer] Move GetTlsSize code from TSan to sanitizer_common.
...
llvm-svn: 176938
2013-03-13 08:19:53 +00:00
d38aceda4e
[Sanitizer] Fix a typo in function name
...
llvm-svn: 176932
2013-03-13 06:55:02 +00:00
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
Kostya Serebryany