Commit Graph

1652 Commits

Author SHA1 Message Date
Viktor Kutuzov 6a9dec2aa2 [Tsan] Intercept pthread_set_name_np on FreeBSD
Differential Revision: http://reviews.llvm.org/D5932

llvm-svn: 220551
2014-10-24 09:23:06 +00:00
Evgeniy Stepanov 7900202e14 [sanitizer] Add a bunch of sanity checks.
llvm-svn: 220528
2014-10-23 22:29:51 +00:00
Evgeniy Stepanov 5efbbca818 [sanitizer] Fix build with _FILE_OFFSET_BITS=64.
Sanitizer source is not affected by _FILE_OFFSET_BITS in general,
but this one file must be built with 32-bit off_t. More details in the code.

llvm-svn: 220328
2014-10-21 21:08:13 +00:00
Alexey Samsonov 3eb69f5482 Remove unused local variable
llvm-svn: 220247
2014-10-20 23:58:08 +00:00
Dan Albert c5d4bc7581 Fix checks for Android.
__ANDROID__ is a define that comes from the toolchain when building
for Android targets. ANDROID has a different meaning. ANDROID is
defined for _every_ Android build, including those done for host
modules. For host modules, we want to build the regular Linux
sanitizers and builtins, not the one for Android devices. This hasn't
been a problem until now because we only just started building the
sanitizers for the host.

llvm-svn: 220203
2014-10-20 15:35:01 +00:00
Kuba Brecka 14c0c5901d [compiler-rt] compiler-rt's CMake append_if function clashes with LLVM's, let's rename it to append_list_if
Doing s/append_if/append_list_if/, no functional change.

http://reviews.llvm.org/D5739

llvm-svn: 219860
2014-10-15 22:47:54 +00:00
Will Schmidt a286594237 [compiler-rt] Enable ASAN for powerpc64le-linux
Whitespace update for lint check by myself (Will).  Otherwise code and comments by Peter Bergner, as previously seen on llvm-commits. 

    The following patch gets ASAN somewhat working on powerpc64le-linux.
    It currently assumes the LE kernel uses 46-bit addressing, which is
    true, but it doesn't solve the case for BE where it may be 44 or
    46 bits.  That can be fixed with a follow on patch.
    
    There are some test suite fails even with this patch that I haven't had
    time to solve yet, but this is better than the state it is in now.
    The limited debugging of those test suite fails seems to show that the
    address map for 46-bit addressing has changed and so we'll need to
    modify the shadow memory location slightly.  Again, that can be fixed
    with a follow on patch.

llvm-svn: 219827
2014-10-15 18:34:04 +00:00
Ed Maste 3ba162d2f9 Fix compiler-rt build on FreeBSD 10.1
We have to #define _WANT_RTENTRY to get struct rtentry, and add headers
that it depends on.

SIOCADDRT and SIOCDELRT also do not exist in FreeBSD 10.1 and were removed
in FreeBSD rev. 263203:

  Garbage collect long time obsoleted (or never used) stuff from routing
  API.

Differential Revision: http://reviews.llvm.org/D5703

llvm-svn: 219722
2014-10-14 21:08:35 +00:00
Evgeniy Stepanov 9e984c5137 [sanitizer] Fix a crash in FP unwinder on ARM.
This change fixes 2 issues in the fast unwinder from r217079:
* A crash if a frame pointer points below current stack head, but
  inside the current thread stack limits. That memory may be
  unmapped. A check for this was lost in r217079.
* The last valid stack frame (the first one with an invalid next
  frame pointer) is always interpreted as a GCC layout frame. This
  results in garbled last PC in the (expected) case when the last
  frame has LLVM layout.

llvm-svn: 219683
2014-10-14 13:46:07 +00:00
Evgeniy Stepanov f518a4e774 [asan] Add fast_unwind_on_check flag.
Allows to specify the unwinder to use for CHECK failures. Previous behaviour
was to use the "fatal" unwinder.
As compiler-rt is built without frame pointers, only the slow unwinder
really makes sense here, and it is the default.

llvm-svn: 219677
2014-10-14 09:36:24 +00:00
Viktor Kutuzov bafaa7f6ba [Sanitizers] Intercept dlopen() and dlclose() on FreeBSD
Differential Revision: http://reviews.llvm.org/D5664

llvm-svn: 219396
2014-10-09 08:59:59 +00:00
Lorenzo Martignoni 60ebffc12f Custom wrappers for DFSanitizing sprintf & snprintf.
Differential Revision: http://reviews.llvm.org/D5561

llvm-svn: 219293
2014-10-08 10:01:42 +00:00
Ed Maste 89b80fb022 Avoid bashisms and switch to /bin/sh
Bash may not be installed on some systems by default, like FreeBSD.

Differential Revision: http://reviews.llvm.org/D5654

llvm-svn: 219231
2014-10-07 20:23:57 +00:00
Evgeniy Stepanov 9e922e7d24 [sanitizer] Android build cleanup.
* Detect Android toolchain target arch and set correct runtime library name.
* Merged a lot of Android and non-Android code paths.
* Android is only supported in standalone build of compiler-rt now.
* Linking lsan-common in ASan-Android (makes lsan annotations work).
* Relying on -fsanitize=address linker flag when building tests (again,
  unification with non-Android path).
* Runtime library moved from lib/asan to lib/linux.

llvm-svn: 218605
2014-09-29 13:18:55 +00:00
Petar Jovanovic c2e0427b94 [UBSan] Adding support of MIPS32
Changed files: 
config-ix.cmake: Enabled UBSan for MIPS32
sanitizer_stacktrace.cc: Program counter for MIPS32 is four byte aligned
and a delay slot so subtracted PC by 8 for getting call site address.
cast-overflow.cpp: Added big endian support for this test case.

Patch by Sagar Thakur.

Differential Revision: http://reviews.llvm.org/D4881

llvm-svn: 218519
2014-09-26 14:16:06 +00:00
Alexey Samsonov 760750c44f [UBSan] Optionally report summary in UBSan error reports.
By default summary is not printed if UBSan is run in a standalone mode,
but is printed if it's combined with another sanitizer (like ASan).

llvm-svn: 218135
2014-09-19 18:33:45 +00:00
Alexey Samsonov 1947bf9921 PR20721: Don't let UBSan print inaccessible memory
Summary:
UBSan needs to check if memory snippet it's going to print resides
in addressable memory. Similar check might be helpful in ASan with
dump_instruction_bytes option (see http://reviews.llvm.org/D5167).

Instead of scanning /proc/self/maps manually, delegate this check to
the OS kernel: try to write this memory in a syscall and assume that
memory is inaccessible if the syscall failed (e.g. with EFAULT).

Fixes PR20721.

Test Plan: compiler-rt test suite

Reviewers: eugenis, glider

Reviewed By: glider

Subscribers: emaste, ygribov, llvm-commits, glider, rsmith

Differential Revision: http://reviews.llvm.org/D5253

llvm-svn: 217971
2014-09-17 17:56:15 +00:00
Dmitry Vyukov 6466f43688 tsan: fix crash when a program registers zillions of atexit callbacks
I don't remember that crash on mmap in internal allocator
ever yielded anything useful, only crashes in rare wierd untested situations.
One of the reasons for crash was to catch if tsan starts allocating
clocks using mmap. Tsan does not allocate clocks using internal_alloc anymore.
Solve it once and for all by allowing mmaps.

llvm-svn: 217929
2014-09-17 00:12:50 +00:00
Kostya Serebryany 9fa2fc8357 [sanitizer] Fix global constructor warning in sanitizer; patch by Samuel F Antao
llvm-svn: 217904
2014-09-16 20:49:55 +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
Alexey Samsonov 74f07ed7fe Revert r217616. Problems and complexity it introduces negate its benefit
llvm-svn: 217652
2014-09-12 01:26:57 +00:00
Alexey Samsonov 5d2c0dfe4c [UBSan] Parse common flags from UBSAN_OPTIONS runtime variable even if
UBSan is combined with ASan.

llvm-svn: 217616
2014-09-11 18:20:11 +00:00
Alexey Samsonov 611c906cb3 [Sanitizer] Get rid of Symbolizer::Get() and Symbolizer::GetOrNull().
We may as well just use Symbolizer::GetOrInit() in all the cases.
Don't call Symbolizer::Get() early in tools initialization: these days
it doesn't do any important setup work, and we may as well create the
symbolizer the first time it's actually needed.

llvm-svn: 217558
2014-09-10 22:45:09 +00:00
Kuba Brecka fa2de77a14 Make compiler-rt tests work with relocatable SDKs on OS X
Reviewed at http://reviews.llvm.org/D4047

llvm-svn: 217523
2014-09-10 17:23:58 +00:00
Evgeniy Stepanov 256d5512e6 [msan] Fix wrong array index in io_submit interceptor.
llvm-svn: 217362
2014-09-08 09:28:25 +00:00
Viktor Kutuzov 1827415be4 Do not assume RLIM_INFINITY is always (rlim_t)-1in sanitizers code
Differential Revision: http://reviews.llvm.org/D5212

llvm-svn: 217308
2014-09-06 07:52:51 +00:00
Viktor Kutuzov dcb98e5dcc Intercept sigfillset() and sigemptyset() for sanitizers needs on FreeBSD
Differential Revision: http://reviews.llvm.org/D5206

llvm-svn: 217307
2014-09-06 07:46:55 +00:00
Viktor Kutuzov eead048ee9 Enable sanitizers' libignore on FreeBSD
Differential Revision: http://reviews.llvm.org/D5205

llvm-svn: 217306
2014-09-06 07:41:22 +00:00
Viktor Kutuzov 2132b704ff Intercept _exit() for sanitizers' needs on FreeBSD
Differential Revision: http://reviews.llvm.org/D5171

llvm-svn: 217156
2014-09-04 14:24:27 +00:00
Viktor Kutuzov 3c821c0200 Fix building sanitizer_linux_libcdep.cc on FreeBSD
Differential Revision: http://reviews.llvm.org/D5166

llvm-svn: 217148
2014-09-04 13:58:59 +00:00
Evgeniy Stepanov bb91e02efd [msan] Make origin tracking fork-safe.
Chained origins make plain memory stores async-signal-unsafe.
We already disable it inside signal handlers.
This change grabs all origin-related locks before fork() and releases
them after fork() to avoid a deadlock in the child process.

llvm-svn: 217140
2014-09-04 10:36:14 +00:00
Alexander Potapenko 9d24aa0fa8 [ASan] allow deadly signals to be received in signal handlers
(previously ASan would just crash upon the second SEGV)
Other tools do not use this code yet.

llvm-svn: 217137
2014-09-04 09:34:22 +00:00
Alexey Samsonov 2428359e23 Fixup test case after r217079
llvm-svn: 217111
2014-09-03 23:46:12 +00:00
Kostya Serebryany fb5d6852c6 [asan] remove debug print
llvm-svn: 217101
2014-09-03 22:58:03 +00:00
Alexey Samsonov c8d8ca0bd6 Fix fast stack unwind on ARM to support code generated with GCC.
http://reviews.llvm.org/D4692

Patch by Maxim Ostapenko!

llvm-svn: 217079
2014-09-03 21:10:44 +00:00
Dmitry Vyukov 8bbb17dcc3 tsan: disable getpwent interceptors
There interceptors do not seem to be strictly necessary for tsan.
But we see cases where the interceptors consume 70% of execution time.
Memory blocks passed to fgetgrent_r are "written to" by tsan several times.
First, there is some recursion (getgrnam_r calls fgetgrent_r), and each
function "writes to" the buffer. Then, the same memory is "written to"
twice, first as buf and then as pwbufp (both of them refer to the same addresses).

llvm-svn: 216904
2014-09-02 12:51:11 +00:00
Dmitry Vyukov dc1caa7cb8 tsan: address comments in r214912
See http://reviews.llvm.org/D4794

llvm-svn: 216900
2014-09-02 09:34:34 +00:00
Alexander Potapenko 3ae9193371 [libsanitizer] Fix the Android build.
llvm-svn: 216885
2014-09-01 15:38:16 +00:00
Alexander Potapenko a909e493f1 [libsanitizer] Make sanitizer_unwind_posix.cc a libcdep source file.
Guard the source with #if SANITIZER_POSIX to fix compilation on Windows.
use it only in 

llvm-svn: 216882
2014-09-01 13:07:50 +00:00
Alexander Potapenko 4d84996186 [ASan] Small refactoring - split the slow unwinding logic into sanitizer_unwind_posix.cc
This allows the slow unwinder to be used on OSX (it's disabled for now, see
https://code.google.com/p/address-sanitizer/issues/detail?id=137 for details)

llvm-svn: 216877
2014-09-01 12:43:03 +00:00
Dmitry Vyukov aa8fa60ba8 tsan: unbreak windows build
Currently it fails with:

# Testing race detector.
race_windows_amd64.syso:gotsan.cc:(.text+0x4d89): undefined reference to `__imp_SymGetModuleBase64'
race_windows_amd64.syso:gotsan.cc:(.text+0x4d90): undefined reference to `__imp_SymFunctionTableAccess64'
race_windows_amd64.syso:gotsan.cc:(.text+0x4dd8): undefined reference to `__imp_StackWalk64'
x86_64-w64-mingw32/bin/ld.exe: race_windows_amd64.syso
: bad reloc address 0x10 in section `.data'
collect2.exe: error: ld returned 1 exit status

llvm-svn: 216875
2014-09-01 11:44:59 +00:00
Kostya Serebryany 74bd6bc9f9 [sanitizer] move mlock interceptor from asan/tsan/msan to common; no functionality change intended
llvm-svn: 216407
2014-08-25 20:57:59 +00:00
Hans Wennborg 4834653872 sanitizer_printf.cc: guard the va_copy hack on _MSC_VER
llvm-svn: 215932
2014-08-18 20:23:16 +00:00
Hans Wennborg a2d4b09a55 Revert "[ASan/Win] Remove a hack that seems not to be required with VS2013 anymore" (r215708)
This is still needed for VS2012.

llvm-svn: 215930
2014-08-18 19:55:35 +00:00
Timur Iskhodzhanov cc01fad1d9 [ASan/Win] Remove a hack that seems not to be required with VS2013 anymore
llvm-svn: 215708
2014-08-15 13:45:23 +00:00
Alexey Samsonov 34e2b280da [TSan] Share the code the setup code calling getrlim/setrlim with sanitizer_common
llvm-svn: 215481
2014-08-12 22:31:19 +00:00
Alexey Samsonov d2d2457823 [Sanitizer] Make disable_coredump a common flag and use it in TSan
llvm-svn: 215479
2014-08-12 22:07:48 +00:00
Alexey Samsonov 408d2152c4 Fixup Android tests build rules
llvm-svn: 215264
2014-08-09 00:23:11 +00:00
Timur Iskhodzhanov 255958391d [ASan/Win] Print out a big warning and continue without checking for success if SymInitialize() fails
llvm-svn: 215203
2014-08-08 13:25:55 +00:00
Viktor Kutuzov 7a27160780 Support getting process maps for sanitizers needs on FreeBSD in 32-bit mode
Differential Revision: http://reviews.llvm.org/D4807

llvm-svn: 215185
2014-08-08 06:21:09 +00:00
Evgeniy Stepanov f5c1f8ac84 [sanitizer] Intercept timerfd_settime, timerfd_gettime.
llvm-svn: 215112
2014-08-07 14:21:42 +00:00
Viktor Kutuzov a37ad099e8 Segregate FreeBSD-specific parts from sanitizer_procmaps_linux.cc
Differential Revision: http://reviews.llvm.org/D4555

llvm-svn: 214955
2014-08-06 10:16:52 +00:00
Dmitry Vyukov 70db9d4d72 tsan: allocate vector clocks using slab allocator
Vector clocks is the most actively allocated object in tsan runtime.
Current internal allocator is not scalable enough to handle allocation
of clocks in scalable way (too small caches). This changes transforms
clocks to 2-level array with 512-byte blocks. Since all blocks are of
the same size, it's possible to cache them more efficiently in per-thread caches.

llvm-svn: 214912
2014-08-05 18:45:02 +00:00
Alexey Samsonov ff24fd2516 [UBSan] Allow to suppress reports from vptr checker for specified types.
Based on http://reviews.llvm.org/D4702 by Byoungyoung Lee!

llvm-svn: 214833
2014-08-05 01:24:22 +00:00
Alexey Samsonov ae1764854e [Sanitizer] Turn SuppressionContext::Init() into InitIfNecessary().
Suppression context might be used in multiple sanitizers working
simultaneously (e.g. LSan and UBSan) and not knowing about each other.

llvm-svn: 214831
2014-08-05 00:43:23 +00:00
Viktor Kutuzov 62308221bc Fix the waitid sanitizer interceptor to work on FreeBSD in 32-bit mode
Differential Revision: http://reviews.llvm.org/D4670

llvm-svn: 214543
2014-08-01 19:33:14 +00:00
Alexey Samsonov 19fc293782 [Sanitizer] Don't try to parse unspecified suppressions file
llvm-svn: 214421
2014-07-31 19:06:47 +00:00
Alexey Samsonov 89b17bb7bc [Sanitizer] Hoist the code parsing suppressions file into sanitizer_common.
Remove corresponding bits from LSan and TSan runtimes. No functionality change.

llvm-svn: 214344
2014-07-30 21:53:30 +00:00
Alexey Samsonov 77f646c623 [Sanitizer] Make "suppressions" and "print_suppressions" common runtime flags.
No functionality change.

llvm-svn: 214343
2014-07-30 21:33:04 +00:00
Alexey Samsonov 34a4c6e12f [Sanitizer] Make SuppressionContext a singleton class, residing in sanitizer_common.
Convert TSan and LSan to the new interface. More changes will follow:
1) "suppressions" should become a common runtime flag.
2) Code for parsing suppressions file should be moved to SuppressionContext::Init().

llvm-svn: 214334
2014-07-30 20:54:37 +00:00
Alexey Samsonov 20c5c7b723 [UBSan] Get pc/bp for stack unwinding as early as possible.
This will ensure that stack frames in error reports will not
contain internal UBSan failures, and frame  will be the
actual place in the program where the error happens.

llvm-svn: 214245
2014-07-29 23:22:41 +00:00
Dmitry Vyukov 4baa65518b tsan: reduce internal allocator region from 16M to 1M
16M regions can waste almost 1G for nothing.
Since region size is used only during initial heap growth,
it's unclear why we even need such huge regions.

llvm-svn: 214027
2014-07-26 10:17:26 +00:00
Dmitry Vyukov 07fdaf97e4 tsan: remove meta from internal allocator
I am puzzled why it is even there.

llvm-svn: 214026
2014-07-26 10:06:11 +00:00
Nick Lewycky 1f30f5aef7 Satisfy -Wparentheses.
llvm-svn: 214017
2014-07-26 05:07:41 +00:00
Alexey Samsonov 1440105338 [Sanitizer] Simplify Symbolizer creation interface.
Get rid of Symbolizer::Init(path_to_external) in favor of
thread-safe Symbolizer::GetOrInit(), and use the latter version
everywhere. Implicitly depend on the value of external_symbolizer_path
runtime flag instead of passing it around manually.

No functionality change.

llvm-svn: 214005
2014-07-26 01:37:23 +00:00
Alexey Samsonov 2178054216 [Sanitizer] Introduce SANITIZER_CAN_USE_PREINIT_ARRAY definition and use it across sanitizers.
Get rid of ASAN_USE_PREINIT_ARRAY and LSAN_USE_PREINIT_ARRAY - just always
use .preinit_array if it's available. This mode seems stable enough, and
we've been relying on default values of these macro for a long time.

llvm-svn: 213980
2014-07-25 22:05:02 +00:00
Viktor Kutuzov d712403b98 Allow initialization of Asan interceptors before the general Asan initialization takes place on FreeBSD
Differential Revision: http://reviews.llvm.org/D4496

llvm-svn: 213941
2014-07-25 12:45:36 +00:00
Viktor Kutuzov 2fde54f48c Support traversing ELF objects for sanitizers needs on FreeBSD in 32-bit mode
Differential Revision: http://reviews.llvm.org/D4656

llvm-svn: 213940
2014-07-25 12:29:04 +00:00
Alexey Samsonov ad63cfd7e5 [Sanitizer] Disable Wframe-larger-than on PowerPC hosts
llvm-svn: 213702
2014-07-22 23:10:13 +00:00
Alexey Samsonov 4532489752 Adjust gen_dynamic_list for PowerPC function descriptors
llvm-svn: 213577
2014-07-21 19:01:03 +00:00
Timur Iskhodzhanov bdf23a51b1 [ASan/Win] Handle situations when the client app has used DbgHelp before
Reviewed at http://reviews.llvm.org/D4533

llvm-svn: 213151
2014-07-16 14:11:02 +00:00
Timur Iskhodzhanov 9e4580c8ee [ASan] Only define macros in asan_init_version.h, move the __asan_init declaration back to asan_interface_internal.h
This fixes the issues we've uncovered after landing r212815.

Reviewed at http://reviews.llvm.org/D4500

llvm-svn: 213053
2014-07-15 08:16:04 +00:00
Evgeniy Stepanov d73e7cc879 [sanitizer] Intercept getpass.
llvm-svn: 212937
2014-07-14 13:07:51 +00:00
Timur Iskhodzhanov 03f1e408de [ASan/Win] Don't apply dllexport to __asan_init in the DLL thunk
This fixes '___asan_init_v4 already defined' errors when linking some of Chromium DLLs.
Looks like one of the DLL is using a .lib produced while linking another DLL and it exploded after r212699.
I'm trying to come up with a small testcase...

llvm-svn: 212815
2014-07-11 13:46:05 +00:00
Timur Iskhodzhanov 19853dd28c [ASan/Win] Catch NULL derefs and page faults
Reviewed at http://reviews.llvm.org/D4471

llvm-svn: 212807
2014-07-11 11:57:41 +00:00
Viktor Kutuzov 794d4dde48 Only use fast stack unwinding for sanitizers failure reports on FreeBSD
Differential Revision: http://reviews.llvm.org/D4420

llvm-svn: 212691
2014-07-10 09:11:15 +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
Alexey Samsonov f723794da8 [Sanitizer] Remove SANITIZER_NEEDS_SEGV from shared sanitizer_common headers.
Otherwise, it can be accidentally redefined when we build specific sanitizer
runtime. This definition should be provided only once - when we build
sanitizer_common library.

llvm-svn: 212663
2014-07-09 23:59:40 +00:00
Alexey Samsonov cd0a4aaba3 Don't check lint for SpecialCaseList.cpp
llvm-svn: 212642
2014-07-09 19:29:10 +00:00
Dmitry Vyukov b0250948c6 tsan: remove unnecessary line split
llvm-svn: 212527
2014-07-08 13:07:23 +00:00
Alexey Samsonov 91bb8e0e3a Generalize sanitizer allocator public interface.
Introduce new public header <sanitizer/allocator_interface.h> and a set
of functions __sanitizer_get_ownership(), __sanitizer_malloc_hook() etc.
that will eventually replace their tool-specific equivalents
(__asan_get_ownership(), __msan_get_ownership() etc.). Tool-specific
functions are now deprecated and implemented as stubs redirecting
to __sanitizer_ versions (which are implemented differently in each tool).

Replace all uses of __xsan_ versions with __sanitizer_ versions in unit
and lit tests.

llvm-svn: 212469
2014-07-07 17:39:31 +00:00
Timur Iskhodzhanov 575180dbd2 [ASan/Win] Unbreak the build after r211216
llvm-svn: 212465
2014-07-07 16:22:04 +00:00
Evgeniy Stepanov f0831ee8d2 [msan] Increase hash table size for chained origins.
llvm-svn: 212448
2014-07-07 10:45:15 +00:00
Evgeniy Stepanov 4af9c0ea80 [asan] i686-linux-android support.
Large part of this change is required due to
  https://code.google.com/p/android/issues/detail?id=61799
dlsym() crashes when symbol resolution fails, which means
we have to limit the interceptor list instead of relying on
runtime detection.

There are minor differencies in system headers, too.

llvm-svn: 212273
2014-07-03 14:20:56 +00:00
Evgeniy Stepanov 7c2d32bf87 [asan] Fix unused variable warning.
llvm-svn: 212272
2014-07-03 14:14:59 +00:00
Alexey Samsonov cffaa1c298 Fix apparent thinko in r209744: allocator stats can be zero
llvm-svn: 212071
2014-06-30 22:40:58 +00:00
Alexander Potapenko b1b8231c8b [ASan] When iterating over segments on OSX, treat the segments' initial
protection level as their current protection level.
This fixes the UNIMPLEMENTED check that started to fire on OSX after r210649.

llvm-svn: 211713
2014-06-25 15:43:19 +00:00
Evgeniy Stepanov 0b2d93c4f0 [sanitizer] Fix build on platforms where dtls support is disabled.
llvm-svn: 211684
2014-06-25 11:43:46 +00:00
Evgeniy Stepanov 7ad0bde843 [msan] Fix false positive on dynamic tls.
Use existing DTLS code in sanitizer_tls_get_addr.{h,cc} to unpoison DTLS
blocks both on allocation and deallocation.

https://code.google.com/p/memory-sanitizer/issues/detail?id=44

llvm-svn: 211683
2014-06-25 11:30:35 +00:00
Daniel Sanders 4dc8a78b04 [asan] adding support of 32-bit address sanitizer for MIPS
Summary: The patch supports both the clang cross-compiler and native compiler

Patch by Kumar Sukhani <Kumar.Sukhani@imgtec.com>

Test Plan:
Kumar had the following asan test results when compiled on a MIPS board:

  Expected Passes    : 96
  Expected Failures  : 2
  Unsupported Tests  : 84
  Unexpected Passes  : 4
  Unexpected Failures: 19

The list of unexpected failures can be found in the review.

Reviewers: kcc, petarj, dsanders

Reviewed By: kcc

Subscribers: farazs, kcc, llvm-commits

Differential Revision: http://reviews.llvm.org/D4208

llvm-svn: 211587
2014-06-24 12:08:18 +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
Evgeniy Stepanov a2327c3a65 [sanitizer] Intercept pthread_*attr_get*.
This is a resubmit of r211166 reverted due to osx breakage.

llvm-svn: 211264
2014-06-19 10:19:57 +00:00
Arnold Schwaighofer 868050a667 Revert "[sanitizer] Intercept pthread_*attr_get*."
This reverts commit r211166. It broke public mac os x bots.

llvm-svn: 211206
2014-06-18 19:04:47 +00:00
Evgeniy Stepanov b87f1efc5f [sanitizer] Intercept pthread_*attr_get*.
llvm-svn: 211166
2014-06-18 14:16:41 +00:00
Evgeniy Stepanov 2c27df9a33 [msan] Intercept __getdelim.
llvm-svn: 211162
2014-06-18 13:35:13 +00:00
Alexander Potapenko 853a232e66 [ASan] Fix https://code.google.com/p/address-sanitizer/issues/detail?id=321 for time() and frexp()
Add a test for the frexp() interceptor.
Annotate the interceptors that may potentially corrupt stack IDs of freed buffers with FIXME comments.

llvm-svn: 211153
2014-06-18 09:27:40 +00:00
Dan Albert 1236ac388d Swap getdtablesize() for sysconf(_SC_OPEN_MAX).
Bionic is no removing this as it was removed from POSIX 2004.

llvm-svn: 211027
2014-06-16 14:51:11 +00:00
Sergey Matveev 998d991b2d [sanitizer] Support PTRACE_GETEVENTMSG in the ptrace() interceptor.
llvm-svn: 211022
2014-06-16 13:49:13 +00:00
Kostya Serebryany 9f5d48c0a0 [asan] initialze varaibles to avoid a (false positive) report from gcc's -Wmaybe-uninitialized
llvm-svn: 211008
2014-06-16 08:32:02 +00:00
Viktor Kutuzov 1f386f0f36 Fix getting IP, BP and SP for address sanitizer's needs on FreeBSD in 32-bit mode
llvm-svn: 210988
2014-06-15 13:56:28 +00:00
Dan Albert 1c71fde161 Exclude Android from the tests for valloc/pvalloc.
These functions are being removed from Android because they were removed
from POSIX 2004.

llvm-svn: 210962
2014-06-14 00:50:03 +00:00
Alexey Samsonov e287ef847a [Sanitizer] Merge AnsiColorDecorator and SanitizerCommonDecorator, use the latter in UBSan
llvm-svn: 210959
2014-06-13 23:46:37 +00:00
Evgeniy Stepanov dfa5439652 [asan] Fix mmap-ed coverage with coverage=0.
llvm-svn: 210655
2014-06-11 15:11:26 +00:00
Evgeniy Stepanov b2b4c3ab32 [asan] Exclude non-executable mappings from coverage.
llvm-svn: 210649
2014-06-11 10:11:51 +00:00
Evgeniy Stepanov 9cc3ebdd3b [sanitizer] Relax sanity checks in ioctl decoding.
Standard KVM ioctls don't pass currect ioctl_decode().

llvm-svn: 210533
2014-06-10 13:54:15 +00:00
Dmitry Vyukov 909b7490a3 sanitizer: document missing macro
llvm-svn: 210329
2014-06-06 12:16:26 +00:00
Evgeniy Stepanov 38c228a842 [asancov] Faster coverage in memory-mapped mode.
Use caller pc of __sanitizer_cov_module_init to figure out
when 2 sequential calls are from the same module; skip
.sancov.map file update in this case.

llvm-svn: 210267
2014-06-05 14:38:53 +00:00
Evgeniy Stepanov 3641cd43b2 [asan] Use -pthread instead of -lpthread in tests.
llvm-svn: 210255
2014-06-05 12:22:37 +00:00
Dan Albert f4239c7707 Remove's uses of sys/timeb.h for Android.
Android is removing sys/timeb.h because it was removed in POSIX 2008.

llvm-svn: 210235
2014-06-05 02:00:24 +00:00
Evgeniy Stepanov fe18102649 [sancov] Handle fork.
Reset coverage data on fork().
For memory-mapped mode (coverage_direct=1) this helps avoid loss of data
(before this change two processes would write to the same file simultaneously).
For normal mode, this reduces coverage dump size, because PCs from the parent
process are no longer inherited by the child.

llvm-svn: 210180
2014-06-04 12:13:54 +00:00
Evgeniy Stepanov ce98452516 [sancov] Delay opening dump file until the first module constructor.
llvm-svn: 210109
2014-06-03 15:27:15 +00:00
Evgeniy Stepanov 937afa1fbb [sancov] Handle spaces in module name.
llvm-svn: 210108
2014-06-03 15:25:43 +00:00
Evgeniy Stepanov bb2fc7e4bb [sancov] Fix map update logic on Android.
dlopen()/dlclose() are not interceptable on Android,
so we update .sancov.map in module constructor callbacks.

llvm-svn: 210098
2014-06-03 12:15:43 +00:00
Evgeniy Stepanov 96f8edc720 [asan] Default to memory-mapped coverage on Android.
The alternative (writing coverage at process exit) is nearly useless there.

llvm-svn: 210024
2014-06-02 13:06:33 +00:00
Evgeniy Stepanov 2fcc427741 [sancov] Remove debug leftovers and update usage text.
llvm-svn: 210009
2014-06-02 09:04:45 +00:00
Dmitry Vyukov afdcc96d9f tsan: optimize memory access functions
The optimization is two-fold:
First, the algorithm now uses SSE instructions to
handle all 4 shadow slots at once. This makes processing
faster.
Second, if shadow contains the same access, we do not
store the event into trace. This increases effective
trace size, that is, tsan can remember up to 10x more
previous memory accesses.

Perofrmance impact:
Before:
[       OK ] DISABLED_BENCH.Mop8Read (2461 ms)
[       OK ] DISABLED_BENCH.Mop8Write (1836 ms)
After:
[       OK ] DISABLED_BENCH.Mop8Read (1204 ms)
[       OK ] DISABLED_BENCH.Mop8Write (976 ms)
But this measures only fast-path.
On large real applications the speedup is ~20%.

Trace size impact:
On app1:
Memory accesses                   :       1163265870
  Including same                  :        791312905 (68%)
on app2:
Memory accesses                   :        166875345
  Including same                  :        150449689 (90%)
90% of filtered events means that trace size is effectively 10x larger.

llvm-svn: 209897
2014-05-30 13:36:29 +00:00
Timur Iskhodzhanov 1b42b81549 [Sanitizers Win] Move duplicate Windows-specific compiler flags to a common CMake variable
Reviewed at http://reviews.llvm.org/D3952

llvm-svn: 209889
2014-05-30 12:42:57 +00:00
Evgeniy Stepanov 3a0486b1e9 [sanitizer] Fix build on ARM.
llvm-svn: 209884
2014-05-30 10:50:17 +00:00
Evgeniy Stepanov dd7cb28572 [asan] Enable ASan on PowerPC.
Patch by Peter Bergner.

llvm-svn: 209879
2014-05-30 08:52:03 +00:00
Evgeniy Stepanov 50c1532a1a [sanitizer] Update flags test.
llvm-svn: 209818
2014-05-29 14:55:12 +00:00
Evgeniy Stepanov fa5c0750f0 [sanitizer] Add coverage_dir flag.
llvm-svn: 209815
2014-05-29 14:33:16 +00:00
Evgeniy Stepanov a0aa0f41d1 [sanitizer] Require that options end with '='.
llvm-svn: 209814
2014-05-29 14:32:32 +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
Viktor Kutuzov 76d35f47d3 Fix building 32-bit common sanitizer tests on FreeBSD 9.2
llvm-svn: 209804
2014-05-29 11:35:05 +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
Dmitry Vyukov 5864ac39ee tsan: do not use 64-bit atomics in allocator code
64-bit atomics make porting of asan to 32-bits platforms problematic.

llvm-svn: 209744
2014-05-28 15:22:12 +00:00
Timur Iskhodzhanov 82ee0433da [ASan/Win] Use clang rather than clang-cl by default for lit tests. Make Windows-only tests explicitly use clang-cl.
Reviewed at http://reviews.llvm.org/D3893

llvm-svn: 209719
2014-05-28 08:38:13 +00:00
Evgeniy Stepanov a00ff194b7 [asan] Add a few stubs to fix windows build.
llvm-svn: 209717
2014-05-28 08:26:24 +00:00
Evgeniy Stepanov 360c911872 [asan] Disable dlopen interceptor on Android.
It can not work, as libdl is always first in the lookup order,
even ahead of LD_PRELOAD-ed libraries.

llvm-svn: 209657
2014-05-27 14:14:03 +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
Sergey Matveev 2be4a28297 [sanitizer] Make stack traces from dlclose()'d modules more meaningful.
Previously, they silently omitted PCs belonging to unknown modules. Now we print
(<unknown module>) instead.

llvm-svn: 209522
2014-05-23 16:04:41 +00:00
Kostya Serebryany a72efdff9e [ubsan] handle long double in 32-bit mode; part of the patch by Marek Polacek
llvm-svn: 209516
2014-05-23 14:45:13 +00:00
Sergey Matveev 83f91e786c [sanitizer] Add __sanitizer_maybe_open_cov_file().
Summary: Add a new interface function required for coverage sandboxing support.
llvm-svn: 209298
2014-05-21 13:43:52 +00:00
Evgeniy Stepanov f77f2ece71 [tsan] Fix gotsan build.
llvm-svn: 209286
2014-05-21 09:42:56 +00:00
Evgeniy Stepanov 208aae8ee0 [msan] Chained origins re-design.
Generalize StackDepot and create a new specialized instance of it to
efficiently (i.e. without duplicating stack trace data) store the
origin history tree.

This reduces memory usage for chained origins roughly by an order of
magnitude.

Most importantly, this new design allows us to put two limits on
stored history data (exposed in MSAN_OPTIONS) that help avoid
exponential growth in used memory on certain workloads.

See comments in lib/msan/msan_origin.h for more details.

llvm-svn: 209284
2014-05-21 09:02:13 +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 b4e24fccd1 [sanitizer] define SANITIZER_X32 and use it in ThreadDescriptorSize; partially based on patch by H.J. Lu
llvm-svn: 209279
2014-05-21 08:01:44 +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
Kostya Serebryany 6c9eacb384 Use 64-bit pointer to unwind stack for x86-64
X32 uses ILP32 data model in 64-bit hardware mode.  This patch always
uses 64-bit pointer to unwind stack for x86-64.
Patch by H.J. Lu

llvm-svn: 209277
2014-05-21 07:34:03 +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
Timur Iskhodzhanov 930ffe94aa [Sanitizer tests] Don't need to use -lstdc++ thanks to --driver-mode=g++
Reviewed at http://reviews.llvm.org/D3796

llvm-svn: 209115
2014-05-19 08:19:38 +00:00
Greg Fitzgerald f42b49787b cleanup and test litlint
llvm-svn: 208907
2014-05-15 18:52:11 +00:00
Evgeniy Stepanov f532c5bfd5 [sanitizer] Remove the definition of xdr_ops.
User-visible instances of xdr_ops always seem to be allocated statically, and
don't need unpoisoning. Also, it's size differs between platforms.

llvm-svn: 208851
2014-05-15 07:18:34 +00:00
Alp Toker 1ee7fc7a1a Fix typos
llvm-svn: 208841
2014-05-15 02:22:34 +00:00
Greg Fitzgerald ceae1fbafd migrate litlint from argparse to optparse. reenabled
llvm-svn: 208826
2014-05-14 23:31:20 +00:00
Greg Fitzgerald 73bd03cee9 Disabled litlint. It requires Python 2.7 or later
llvm-svn: 208823
2014-05-14 23:20:30 +00:00
Greg Fitzgerald a310d98ff1 add script to ensure lit test contains %run
llvm-svn: 208819
2014-05-14 22:49:46 +00:00
Kostya Serebryany b9e31d7fcd [asan] use some LIKELY/UNLIKELY
llvm-svn: 208776
2014-05-14 14:03:31 +00:00
Timur Iskhodzhanov 86e2470a5b [ASan/Win] Enable demangling of global variable names
llvm-svn: 208775
2014-05-14 13:55:59 +00:00
Evgeniy Stepanov 99d3791a88 [sanitizer] Fix crash in getgrnam_r and similar interceptors.
When no matching record is found, getgrnam_r return 0 but sets result to NULL.
Should fix PR19734.

llvm-svn: 208773
2014-05-14 12:32:40 +00:00
Alexander Potapenko 04e2f43756 [libsanitizer] Notify the runtime about file being closed before the actual call to fclose().
This shall fix spurious false positive race reports between fclose() and fopen64().

llvm-svn: 208772
2014-05-14 11:48:37 +00:00
Kostya Serebryany d5e1091c73 [asan] tyring to fix the Android build
llvm-svn: 208763
2014-05-14 09:21:22 +00:00
Kostya Serebryany 7534a60753 [asan] Respect personality in kernel area detector, patch by Yuri Gribov
llvm-svn: 208760
2014-05-14 08:13:11 +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
Timur Iskhodzhanov 5ce3937ed4 [Sanitizer tests] Define 16- and 64-bit versions of atomic_compare_exchange_strong on Windows
Reviewed at http://reviews.llvm.org/D3745

llvm-svn: 208700
2014-05-13 14:23:25 +00:00
Timur Iskhodzhanov 5812350591 [Sanitizer tests] Exclude three tests that fail on Windows
llvm-svn: 208698
2014-05-13 13:34:00 +00:00
Timur Iskhodzhanov e33158bcd1 [Sanitizer tests] Land the sanitizer twin of the asan-only change r208682
llvm-svn: 208697
2014-05-13 13:29:11 +00:00
Timur Iskhodzhanov 339e8c98f8 [Sanitizer tests] Add sanitizer_test_config.h to make the inclusion of gtest.h conditional
Reviewed at http://reviews.llvm.org/D3744

llvm-svn: 208696
2014-05-13 13:25:12 +00:00
Timur Iskhodzhanov 2e9136c2da [Sanitizer/ASan tests] Automatically detect the presence of libstdc++
llvm-svn: 208695
2014-05-13 12:57:50 +00:00
Evgeniy Stepanov 68d7f43e38 [sanitizer] Disable fopen64 interceptor on osx.
llvm-svn: 208693
2014-05-13 12:05:38 +00:00
Timur Iskhodzhanov e5e92fac4a [Sanitizer tests] Fix most of the build problems on Windows
E.g. use the pthread helpers introduced in r208674

llvm-svn: 208692
2014-05-13 12:02:53 +00:00
Evgeniy Stepanov 7bd7063db0 [sanitizer] Mark several functions as possibly unused.
llvm-svn: 208686
2014-05-13 11:18:22 +00:00
Evgeniy Stepanov 4d16c1df0c [sanitizer] Delete an unused function.
llvm-svn: 208678
2014-05-13 09:03:45 +00:00
Evgeniy Stepanov 6b21d560c9 [sanitizer] Fix windows build.
llvm-svn: 208677
2014-05-13 08:47:40 +00:00
Evgeniy Stepanov 5680a26b0b [msan] Better open_memstream support.
Move fflush and fclose interceptors to sanitizer_common.
Use a metadata map to keep information about the external locations
that must be updated when the file is written to.

llvm-svn: 208676
2014-05-13 08:36:31 +00:00
Timur Iskhodzhanov 711269966c [Sanitizer tests] Make simple pthread tests compile and pass on Windows
Reviewed at http://reviews.llvm.org/D3725

llvm-svn: 208674
2014-05-13 08:07:09 +00:00
Kostya Serebryany 0d00675df2 [sanitizer] fix for ARM Linux, patch by Maxim Ostapenko
llvm-svn: 208673
2014-05-13 08:01:59 +00:00
Kostya Serebryany b7a7e55dc5 [sanitizer] define __sanitizer_time_t
llvm-svn: 208671
2014-05-13 07:49:39 +00:00
Timur Iskhodzhanov 1ac44dd087 [Sanitizer tests] Fix a comment that got out of sync with the #if
llvm-svn: 208602
2014-05-12 17:33:00 +00:00
Timur Iskhodzhanov 36fc9b18b7 [ASan tests] Also define USED/UNUSED in lib/sanitizer_common/sanitizer_internal_defs.h if Clang is used on Windows
Otherwise we end up with macro redefinition warnings

llvm-svn: 208571
2014-05-12 14:44:29 +00:00
Timur Iskhodzhanov 9a205ed8ee [ASan tests] Use the proper attribute on RunStrChrTest helper functions to avoid "unused function" warnings
llvm-svn: 208568
2014-05-12 14:31:57 +00:00
Sergey Matveev f37bd92c3a [asan] Move the "coverage" flag to common flags.
The implementation lives in sanitizer_common and will need to access that flag.

llvm-svn: 208566
2014-05-12 14:27:36 +00:00
Alexey Samsonov 35744c4753 Fixup for r208066. Properly get values of PTRACE_GETREGSET/PTRACE_SETREGSET.
llvm-svn: 208363
2014-05-08 22:11:20 +00:00
Sergey Matveev 76e02e90c5 [ASan] Fix coverage behavior when a PC belongs to an unknown address range.
This happens, e.g., when coverage data is collected for a module which is then
dlclose()'d. Currently this causes CovDump() to ignore all PCs that are greater
than the unrecognized PC. In other words, unloading a module causes ASan to
silently ignore any coverage data for modules loaded at higher addresses.
Instead we should just skip the unrecognized PCs.

llvm-svn: 208333
2014-05-08 16:09:54 +00:00
Timur Iskhodzhanov 76f43eecb0 [ASan] Update sanitizer_common and asan test_util headers to support building on Windows
llvm-svn: 208306
2014-05-08 12:43:33 +00:00
Evgeniy Stepanov d31ac26230 [sanitizer] Unconditionally write to target buffer in *sprintf interceptors.
This does not change the default behavior (check_printf in on by default in all tools).
With this change, check_printf flag only affects format string parsing.

llvm-svn: 208290
2014-05-08 09:18:22 +00:00
Evgeniy Stepanov 7d46040ff2 [sanitizer] Replace a macro with a function.
llvm-svn: 208207
2014-05-07 13:24:28 +00:00
Evgeniy Stepanov 55590227f8 [sanitizer] Intercept obstack.
llvm-svn: 208196
2014-05-07 11:50:56 +00:00
Kostya Serebryany 7a733480c8 [asan] introduce interface function __sanitizer_verify_contiguous_container to verify annotations in vector-like containers
llvm-svn: 208092
2014-05-06 14:41:01 +00:00
Evgeniy Stepanov aa44aaee90 [sanitizer] Print addresses in hexadecimal.
llvm-svn: 208089
2014-05-06 14:01:13 +00:00
Timur Iskhodzhanov 7d5c81db0a [ASan/Win] Don't crash when ASAN_OPTIONS have disable_core=1
Reviewed at http://reviews.llvm.org/D3610

llvm-svn: 208070
2014-05-06 08:21:50 +00:00
Kostya Serebryany 98e55ef41a [sanitizer] fix build with glibc 2.4, patch by Sandra Loosemore
llvm-svn: 208066
2014-05-06 07:36:51 +00:00
Kostya Serebryany 12963b54a8 [asan] disable GetKernelStartAddress as it misbehaves in schroot
llvm-svn: 207768
2014-05-01 16:20:23 +00:00
Kostya Serebryany 8b530e10a1 [asan] make AsanCoverage lock-free (and AS-safe)
llvm-svn: 207630
2014-04-30 10:40:48 +00:00
Alexey Samsonov d94e87db3f [Sanitizer] Add rudimentary support for wide-character strings to scanf/printf interceptors
llvm-svn: 207443
2014-04-28 20:40:25 +00:00
Viktor Kutuzov f9eba2f51d Fix building Asan and common sanitizers tests on FreeBSD 9.2
llvm-svn: 207408
2014-04-28 10:33:01 +00:00
Evgeniy Stepanov c435fb07dd [sanitizer] Limit fopen interceptor to linux.
llvm-svn: 207227
2014-04-25 13:55:29 +00:00
Evgeniy Stepanov f3d5d119a8 [sanitizer] Intercept a bunch of stdio calls.
Add move fopen/freopen interceptors from TSan to common.

llvm-svn: 207224
2014-04-25 13:26:21 +00:00
Alexander Potapenko 623c989eea [ASan] Use a non-null altstack.ss_size when disabling sigaltstack on Darwin.
llvm-svn: 207220
2014-04-25 10:39:41 +00:00
Justin Bogner b83dd55eb6 [sanitizer] wordexp isn't available on iOS
llvm-svn: 207140
2014-04-24 20:10:31 +00:00
Dmitry Vyukov b7ebc53772 tsan: stop background thread when sandbox is enabled
Fixes https://code.google.com/p/thread-sanitizer/issues/detail?id=56

llvm-svn: 207114
2014-04-24 13:09:17 +00:00
Kostya Serebryany 7afc6b2c72 [asan] enable use_sigaltstack by default (this will provide verbose reports on stack-overflow instead of silently crashing with SEGV)
llvm-svn: 207099
2014-04-24 11:55:17 +00:00
Kostya Serebryany c9db838267 [asan] enable LeakSanitizer (LSan) by default in asan. This only affects Linux x86_64. LSan has been used in various projects for more than half a year and we now consider it quite stable to be on by default.
llvm-svn: 206896
2014-04-22 13:56:56 +00:00
Kostya Serebryany 26c4e96455 [sanitizer] enable check_printf by default for asan and tsan. We've been using this flag for a while and it seems to be stable enough for the rest of the world.
llvm-svn: 206872
2014-04-22 09:17:08 +00:00
Evgeniy Stepanov a7f9071f25 [sanitizer] Intercept tsearch.
llvm-svn: 206755
2014-04-21 14:21:51 +00:00
Alexey Samsonov aefbec9dfd Move pthread_cond_* interceptors from sanitizer_common with all the ugly hacks to TSan
llvm-svn: 206423
2014-04-16 23:06:46 +00:00
Kostya Serebryany 498b18a01e [asan] try to harden __tls_get_addr interceptor against signals (no good test still); update the comment in a test.
llvm-svn: 206367
2014-04-16 09:07:27 +00:00
Alexander Potapenko 65a6c57013 [ASan] Replace a CHECK for mmap_limit_mb with a RAW_CHECK.
In the case of a CHECK failure the program tries to fork and launch llvm-symbolizer,
but hangs in mz_force_lock because one of the allocator locks is already acquired.

llvm-svn: 206274
2014-04-15 11:36:18 +00:00
Kostya Serebryany b1232474b2 [asan] try fixing the mmap_limit_mb failure on buildbot (tests pass locally)
llvm-svn: 206262
2014-04-15 08:35:43 +00:00
Hans Wennborg 8f80ccc635 sanitizer_atomic_msvc.h: add atomic_fetch_{add,sub} overloads for uintptr_t
This should hopefully unbreak the MSVC build after r206178.

llvm-svn: 206200
2014-04-14 17:43:49 +00:00
Hans Wennborg ec77f619bb sanitizer_deadlock_detector.h: MSVC 2012 doesn't like compound literals
llvm-svn: 206199
2014-04-14 17:43:45 +00:00
Kostya Serebryany bcfbea6d4e [asan] added internal flag mmap_limit_mb
llvm-svn: 206178
2014-04-14 14:51:01 +00:00
Kostya Serebryany f694ab1f18 [asan] provide better reports for cases where memcpy/etc get negative size parameter. Also fix a typo found by Tetsuo Kiso
llvm-svn: 206158
2014-04-14 09:50:52 +00:00
Dmitry Vyukov b5eb8f0212 tsan: fix vector clocks
the new optimizations break when thread ids gets reused (clocks go backwards)
add the necessary tests as well

llvm-svn: 206035
2014-04-11 15:38:03 +00:00
Evgeniy Stepanov 652cbd7c15 [tsan] Fix false positive on xdr*_create.
llvm-svn: 206030
2014-04-11 12:29:24 +00:00
Evgeniy Stepanov 24c8d92fec [sanitizer] Intercept a subset of sunrpc interface (xdr_*).
llvm-svn: 205627
2014-04-04 14:51:23 +00:00
Kostya Serebryany 9f20c9b17c [asan] fix a leak in __tls_get_addr handler; introduce a run-time flag to disable this handler completely; remove a workaround for a bug fixed in glibc
llvm-svn: 205617
2014-04-04 09:10:58 +00:00
Viktor Kutuzov 7fedc179d2 Add FreeBSD support to sanitizers' procmaps facilities
llvm-svn: 205291
2014-04-01 10:34:21 +00:00
Viktor Kutuzov 3ece65b894 Fix definition of the __sanitizer_passwd structure on FreeBSD
llvm-svn: 205290
2014-04-01 10:29:42 +00:00
Alexey Samsonov 78a8435fd6 [CMake] Rename add_compiler_rt_static_runtime to add_compiler_rt_runtime.
Soon there will be an option to build compiler-rt parts as shared libraries
on Linux. Extracted from http://llvm-reviews.chandlerc.com/D3042
by Yuri Gribov.

llvm-svn: 205183
2014-03-31 13:45:36 +00:00
Kostya Serebryany 683d55f50e [sanitizer] speed up the bitvector-based deadlock detector by ~15% (iterate over the currently held locks using the array, not the bitvector. Bitvector is not the best data structure to iterate over)
llvm-svn: 205168
2014-03-31 07:23:50 +00:00
Evgeniy Stepanov 6f34082590 [sanitizer] Fix Mac build.
llvm-svn: 205006
2014-03-28 14:01:40 +00:00
Evgeniy Stepanov 86a4d2c32b [sanitizer] Intercept fgetpwent / fgetgrent.
These interceptors require deep unpoisoning of return values.
While at it, we do the same for all other pw/gr interceptors to
reduce dependency on libc implementation details.

llvm-svn: 205004
2014-03-28 13:03:55 +00:00
Evgeniy Stepanov 163ee4efb5 [sanitizer] Intercept setpwent/endpwent.
It's hard to write a reliable test for this code because they
work with unpredictable memory locations. But this change should
fix current failures in getpwent() tests on the sanitizer bots.

llvm-svn: 205002
2014-03-28 11:46:35 +00:00
Evgeniy Stepanov 92bee36b3e [sanitizer] Intercept rand_r.
llvm-svn: 205001
2014-03-28 11:21:45 +00:00
Evgeniy Stepanov 74e77756ef [sanitizer] Intercept getpwent/getgrent.
llvm-svn: 205000
2014-03-28 10:56:07 +00:00
Evgeniy Stepanov 2e972f63b5 [sanitizer] Intercept mktime.
llvm-svn: 204994
2014-03-28 09:02:57 +00:00
Evgeniy Stepanov 7b44e1ad42 [sanitizer] Intercept ftime.
llvm-svn: 204991
2014-03-28 08:33:32 +00:00
Evgeniy Stepanov a6eb1bb59e [sanitizer] Intercept __bzero on Mac.
This should make memset_test pass on Mac.

llvm-svn: 204929
2014-03-27 14:20:34 +00:00
Evgeniy Stepanov 1189734413 [sanitizer] Fix Android build.
llvm-svn: 204927
2014-03-27 14:06:15 +00:00
Evgeniy Stepanov 9dcd5a353a [msan] Intercept several malloc-related functions.
llvm-svn: 204923
2014-03-27 13:29:29 +00:00
Kostya Serebryany 88d0eac412 [asan] Do not sanitize kernel area on 32-bit targets, patch by Yuri Gribov
llvm-svn: 204897
2014-03-27 07:36:26 +00:00
Evgeniy Stepanov 16d89fc356 [sanitizer] Intercept __aeabi_mem(set|cpy|move).
llvm-svn: 204800
2014-03-26 12:14:34 +00:00
Alexey Samsonov c41ca6d31a [CMake] Rename the variable
llvm-svn: 204602
2014-03-24 13:29:20 +00:00
Timur Iskhodzhanov 59ce9e07a4 Fix a VS compile-time warning
warning C4345: behavior change: an object of POD type constructed with an initializer of the form () will be default-initialized

llvm-svn: 204597
2014-03-24 10:47:37 +00:00
Viktor Kutuzov 276fefb8d9 A fix for sanitizers' TLS support on FreeBSD
llvm-svn: 204595
2014-03-24 10:01:54 +00:00
Alexey Samsonov 1847401332 [CMake] Respect CMAKE_CXX_FLAGS in custom clang_compile commands
llvm-svn: 204593
2014-03-24 09:42:12 +00:00
Alexander Potapenko 25e204e194 [libsanitizer] Add descriptions for the common flags.
Use new(allocator_for_flags) instead of allocator_for_flags.Allocate()
Fix the description output format a bit.

llvm-svn: 204484
2014-03-21 17:28:12 +00:00
Kostya Serebryany 3df5d87da4 [sanitizer] print threads in deadlock report
llvm-svn: 204461
2014-03-21 13:00:18 +00:00
Greg Fitzgerald 8288afb5fe fixed check_lint.sh in standalone build
Change-Id: I30d340bbe6b2028cc0f831399b62521912dcac60
llvm-svn: 204419
2014-03-21 00:45:21 +00:00
Alexander Potapenko d23359c3e3 [libsanitizer] Implement IntrusiveList<T>::Iterator, use IntrusiveList in sanitizer_flags.cc
llvm-svn: 204342
2014-03-20 13:49:21 +00:00
Alexander Potapenko 1296436cbf [libsanitizer] Introduce flag descriptions.
Extend ParseFlag to accept the |description| parameter, add dummy values for all existing flags.
As the flags are parsed their descriptions are stored in a global linked list.
The tool can later call __sanitizer::PrintFlagDescriptions() to dump all the flag names and their descriptions.
Add the 'help' flag and make ASan, TSan and MSan print the flags if 'help' is set to 1.

llvm-svn: 204339
2014-03-20 12:52:52 +00:00
Dmitry Vyukov 1af191e1f4 tsan: add test for second_deadlock_stack flag
llvm-svn: 204240
2014-03-19 15:00:38 +00:00
Kostya Serebryany 78f2e7bd62 [sanitizer] use some c++11 to simplify the code (we can now). Fix one place where a mutex acquisition stack trace was not properly remembered
llvm-svn: 204237
2014-03-19 14:19:31 +00:00
Alexey Samsonov 17703c1092 [CMake] Build sanitizer unit tests with -std=c++11
llvm-svn: 204234
2014-03-19 13:57:33 +00:00
Kostya Serebryany 2483acce21 [sanitizer] when recycling deadlock graph nodes, properly recycle edges
llvm-svn: 204233
2014-03-19 13:53:37 +00:00
Dmitry Vyukov ecc3456fd6 tsan: fix copy-pasted comment
llvm-svn: 204231
2014-03-19 13:19:39 +00:00
Dmitry Vyukov 17efa197bf tsan: fix large stack frame in deadlock detector
In member function 'virtual void __sanitizer::DD::MutexBeforeLock(__sanitizer::DDCallback*, __sanitizer::DDMutex*, bool)':
error: the frame size of 544 bytes is larger than 512 bytes [-Werror=frame-larger-than=]

The code is now [arguably] better as well.

llvm-svn: 204227
2014-03-19 12:49:46 +00:00
Kostya Serebryany 2ea796e05f [sanitizer] deadlock detector: a) initial support for suppressions, b) be more robust in case we failed to extract a stack trace for one of the locks
llvm-svn: 204225
2014-03-19 12:26:33 +00:00
Timur Iskhodzhanov 364b8b8fe5 [ASan] Print mmap errno/GetLastError in a readable and consistent way
Reviewed at http://llvm-reviews.chandlerc.com/D3107

llvm-svn: 204218
2014-03-19 08:23:00 +00:00
Sergey Matveev 34b26458cb [sanitizer] Fix a bug in AdjustStackSize().
If the user requests OS default stack size, do not adjust it to our minimum
stack size (which is usually much less than the OS default).

llvm-svn: 204173
2014-03-18 19:48:48 +00:00
Dmitry Vyukov c5b7c66bc3 tsan: fix malloc/munmap mismatch
llvm-svn: 204154
2014-03-18 14:28:17 +00:00
Dmitry Vyukov 3cd028c0b2 tsan: deadlock detector: add deadlock detector flags
the first flags is to enable printing of the second stack per edge

llvm-svn: 204150
2014-03-18 13:13:47 +00:00
Dmitry Vyukov b72bc2ec9c tsan: deadlock detector: print 2 stacks per deadlock edge
llvm-svn: 204149
2014-03-18 12:53:05 +00:00
Dmitry Vyukov 7fbceb2a3f tsan: addrhashmap: fix bug with initialization of addresses in add array
llvm-svn: 204148
2014-03-18 12:52:11 +00:00
Alexey Samsonov f88f317d35 Fix -Werror build
llvm-svn: 204139
2014-03-18 11:17:01 +00:00