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299 Commits

Author SHA1 Message Date
Evgeniy Stepanov 455abf4872 [msan] Unpoison the result of posix_memalign. 
llvm-svn: 180101
 2013-04-23 13:27:36 +00:00
Evgeniy Stepanov 3076ba0a08 [sanitizer] Intercept getgrnam{_r}, getgrgid{_r}. 
llvm-svn: 180091
 2013-04-23 12:01:20 +00:00
Evgeniy Stepanov 0cd7cf8217 [msan] Allow clock_getres(, 0). 
llvm-svn: 180090
 2013-04-23 11:48:31 +00:00
Evgeniy Stepanov d1dae90bf2 [msan] Fix gcc build of msan_test. 
llvm-svn: 179594
 2013-04-16 14:09:47 +00:00
Evgeniy Stepanov b0d786798c [msan] Fix sigaction test. 
Restore SIGPROF handler to the original state after the test.

llvm-svn: 179524
 2013-04-15 13:35:05 +00:00
Evgeniy Stepanov 7332acac4c [msan] Really disable replacement new and delete. 
llvm-svn: 179522
 2013-04-15 12:41:52 +00:00
Alexey Samsonov e48866969e [MSan] Demangle function name in description of stack origin 
llvm-svn: 179368
 2013-04-12 07:27:30 +00:00
Alexey Samsonov 1a345ad502 [MSan] don't build tests with -fPIE/-pie, as these flags are implied by -fsanitize=memory now 
llvm-svn: 179366
 2013-04-12 07:14:04 +00:00
Alexey Samsonov 9f3938e271 Explicitly list all sanitizer headers in CMake build rules. Make sure sanitizer lit_tests depend on fresh headers. 
llvm-svn: 179293
 2013-04-11 15:49:52 +00:00
Evgeniy Stepanov f5523116e9 [sanitizer] Syscall hooks. 
Pre- and post- hooks for linux syscalls. Not wired into anything, but exposed
through public interface.

llvm-svn: 179288
 2013-04-11 14:37:04 +00:00
Evgeniy Stepanov 460067823b [sanitizer] Interceptors for wait*. 
llvm-svn: 179096
 2013-04-09 14:34:59 +00:00
Evgeniy Stepanov 69967c2835 [msan] Intercept glob() with tests. 
llvm-svn: 179091
 2013-04-09 11:35:13 +00:00
Evgeniy Stepanov b4eac2f810 [msan] Interceptors for pipe2 and socketpair. 
llvm-svn: 179022
 2013-04-08 13:45:12 +00:00
Evgeniy Stepanov 7ba7207f1d [msan] Intercept time(). 
llvm-svn: 179002
 2013-04-08 08:25:22 +00:00
Kostya Serebryany 5b4267f7e7 [sanitizer] found a bug by code inspection: CHECK(a=b) instead of CHECK(a==b). Was puzzled why lint did not catch it. Turns out this check was disabled for asan source. fix all cases and enable the check 
llvm-svn: 178872
 2013-04-05 14:40:25 +00:00
Evgeniy Stepanov e7a7a9b972 [msan] Fix sigaction interceptor. 
llvm-svn: 178868
 2013-04-05 12:58:07 +00:00
Evgeniy Stepanov c7af878a01 [msan] Conditionally disable new() and delete() wrappers. 
To be used with static libstdc++.

llvm-svn: 178866
 2013-04-05 12:03:47 +00:00
Evgeniy Stepanov 7948c648bf [msan] A runtime option to disable wrapping of signal handlers. 
llvm-svn: 178865
 2013-04-05 11:59:16 +00:00
Alexey Samsonov 734aab4066 [Sanitizer] Use a common mutex to prevent mixing reports from different sanitizers. This fixes PR15516 
llvm-svn: 178853
 2013-04-05 07:30:29 +00:00
Evgeniy Stepanov 7b0e132551 [sanitizer] Use ucontext_t instead of "struct ucontext". 
Fixes Mac build.

llvm-svn: 178755
 2013-04-04 09:03:56 +00:00
Evgeniy Stepanov 1f8b3538b4 [msan] Unpoison siginfo_t and ucontext_t in signal handlers. 
Add wrappers for all user signal handlers to unpoison the handler's arguments.

llvm-svn: 178754
 2013-04-04 08:22:52 +00:00
Kostya Serebryany c3525ce6ac [sanitizer] while doing fast unwinding make sure that the frame pointer is aligned; fix lint 
llvm-svn: 178747
 2013-04-04 06:52:40 +00:00
Evgeniy Stepanov f8213b4eb3 [sanitizer] More interceptors. 
getpwnam, getpwuid, getpwnam_r, getpwuid_r, clock_getres, clock_gettime,
clock_settime, getitimer, setitimer, sigaction (MSan).

llvm-svn: 178465
 2013-04-01 14:47:21 +00:00
Alexander Potapenko f8109dd0f8 [libsanitizer] Unmapping the old cache partially invalidates the memory layout, so add 
a flag to skip cache update for cases when that's unacceptable (e.g. lsan).

Patch by Sergey Matveev (earthdok@google.com)

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

llvm-svn: 177784
 2013-03-23 00:31:07 +00:00
Evgeniy Stepanov ecbf64648f [msan] Handle dlopen() failure in dlopen interceptor. 
llvm-svn: 177728
 2013-03-22 11:59:49 +00:00
Evgeniy Stepanov 93a842bd1f [msan] Move test main and gtest include to separate files. 
llvm-svn: 177718
 2013-03-22 09:01:26 +00:00
Evgeniy Stepanov bfe9df221d [msan] Place dlopen in an anon namespace. 
llvm-svn: 177716
 2013-03-22 08:49:36 +00:00
Evgeniy Stepanov 0af672326a [sanitizer] Replace more platform checks with SANITIZER_ constants. 
llvm-svn: 177400
 2013-03-19 14:33:38 +00:00
Evgeniy Stepanov b4a218db34 [sanitizer] Don't adjust the size of the user-allocated stack. 
Moved this code to sanitizer_common.

llvm-svn: 177383
 2013-03-19 09:30:52 +00:00
Evgeniy Stepanov c6bce93591 [msan] Intercept readdir64. 
llvm-svn: 177065
 2013-03-14 12:49:23 +00:00
Evgeniy Stepanov 4062a396c7 [msan] Fix a typo in test. 
llvm-svn: 177059
 2013-03-14 11:58:13 +00:00
Evgeniy Stepanov fe0199ea54 [msan] Options for switching between fast and cfi unwinders in run time. 
Does not change default behavior.

llvm-svn: 177057
 2013-03-14 11:47:03 +00:00
Evgeniy Stepanov 231894a902 [sanitizer] Intercept frexp and friends. 
llvm-svn: 177056
 2013-03-14 11:34:39 +00:00
Evgeniy Stepanov ead6cf7c72 [msan] Intercept __strdup, strndup, __strndup. 
llvm-svn: 177052
 2013-03-14 11:10:36 +00:00
Evgeniy Stepanov 96f82f8ac3 [sanitizer] Fix lint. 
llvm-svn: 176943
 2013-03-13 10:20:35 +00:00
Alexey Samsonov d7ab381f53 [Sanitizer] Build ASan, TSan and MSan runtimes with -fno-rtti. 
llvm-svn: 176940
 2013-03-13 09:18:30 +00:00
Evgeniy Stepanov 98f5ea0dba [msan] Increase stack size as required. 
Adjust stack size in pthread_attr_t when the app-requested size does not fit MSan TLS.

llvm-svn: 176939
 2013-03-13 09:01:40 +00:00
Alexey Samsonov 06d3aa4884 [Sanitizer] Change MemoryMappingLayout methods to also report memory protection flags (for future use in leak checker). Patch by Sergey Matveev. 
llvm-svn: 176931
 2013-03-13 06:51:02 +00:00
Evgeniy Stepanov 26d5bc7fdf [msan] Use sptr instead of ptrdiff_t. 
llvm-svn: 176854
 2013-03-12 07:21:17 +00:00
Reid Kleckner c9d382b5a4 [msan] intercept dlopen and clear shadow for it 
Summary:
The loader does not call mmap() through the PLT because it has to
bootstrap the process before libc is present.  Hooking dlopen() isn't
enough either because the loader runs module initializers before
returning, and they could run arbitrary msan instrumented code.

If msandr is present, then we can intercept the mmaps from dlopen at the
syscall layer and clear the shadow there.  If msandr is missing, we
clear the shadow after dlopen() and hope any initializers are trivial.

Reviewers: eugenis

CC: kcc, llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D509

llvm-svn: 176818
 2013-03-11 18:07:42 +00:00
Reid Kleckner 063dfe3244 [msan] Block reports from interceptors during _Unwind_Backtrace 
Summary:
I'm hitting a big recursive report from:
  uninit on strlen ->
  __msan::PrintWarningWithOrigin() ->
  __msan::GetStackTrace() ->
  __sanitizer::StackTrace::SlowUnwindStack() ->
  _Unwind_Backtrace() ->
  ... libgcc calls ->
  uninit on strlen() ->
  ... repeats

Reviewers: eugenis

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

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

llvm-svn: 175504
 2013-02-19 11:09:29 +00:00
Evgeniy Stepanov ea61d08185 [sanitizer] Add interceptors for localtime and friends. 
llvm-svn: 175499
 2013-02-19 09:19:16 +00:00
Kostya Serebryany ec87e785a3 [msan] don't check shadow inside interceptors if we are inside symbolizer; add weak function __msan_default_options that overrides default options 
llvm-svn: 175040
 2013-02-13 07:19:47 +00:00
Evgeniy Stepanov e676f66fe3 [msan] Allow zero buf pointer in getcwd() interceptor. 
llvm-svn: 174970
 2013-02-12 14:36:22 +00:00
Alexey Samsonov 93686fc6f1 [MSan] symbolize correct PC when printing Summary message 
llvm-svn: 174956
 2013-02-12 10:46:39 +00:00
Evgeniy Stepanov 257274e754 [msan] Lit tests for MemorySanitizer. 
Build system setup for MSan lit tests (build with freshly-built clang, run,
check output) - a nearly exact copy from ASan.
First 2 lit tests for MSan.

llvm-svn: 174876
 2013-02-11 11:34:26 +00:00
Kostya Serebryany 7b0b9b3b65 [msan] add strip_path_prefix flag; print error summary; don't crash while printing summary if debug info is missing. The tests will follow later once we establish the lit-like tests for msan. 
llvm-svn: 174595
 2013-02-07 08:04:56 +00:00
Kostya Serebryany bda64b4d40 [sanitizer] make the error messages from sanitizer_common contain the actual tool name 
llvm-svn: 174059
 2013-01-31 14:11:21 +00:00
Evgeniy Stepanov 358698279d [sanitizer] Further split private and public sanitizer headers. 
And make msan_interface.h C-compatible.

llvm-svn: 173928
 2013-01-30 13:12:08 +00:00
Alexey Samsonov 0d92533b29 Use LLVM_BUILD_TYPE instead of CMAKE_BUILD_TYPE in compiler-rt unit tests to match the behavior of llvm unittests 
llvm-svn: 173926
 2013-01-30 12:18:49 +00:00
Alexey Samsonov 49a32c1d08 [Sanitizer] update style checker script and fix namespace style warnings 
llvm-svn: 173910
 2013-01-30 07:45:58 +00:00
Evgeniy Stepanov eac7f934f0 [msan] Cleanup public interface header. 
Moved everything users are not supposed to use to a private interface header.
Documented all public interfaces. Made them safe to use even if built without
MemorySanitizer.

llvm-svn: 173800
 2013-01-29 14:33:29 +00:00
Evgeniy Stepanov 9f7e8c1433 [msan] A runtime call to support custom allocators. 
llvm-svn: 173687
 2013-01-28 13:52:49 +00:00
Evgeniy Stepanov 2538bd1901 [msan] Remove icmp tests that require exact shadow propagation. 
llvm-svn: 173686
 2013-01-28 13:45:16 +00:00
Alexey Samsonov 5311754b62 [CMake] Fix compiler-rt tests after r173617 
llvm-svn: 173668
 2013-01-28 07:16:22 +00:00
Evgeniy Stepanov 0e5becb830 [msan] Tests for ICmp handling. 
llvm-svn: 173456
 2013-01-25 15:39:11 +00:00
Kostya Serebryany fa79cd65e2 [sanitizer] fix calloc overflow in asan/tsan/msan 
llvm-svn: 173441
 2013-01-25 11:46:22 +00:00
Evgeniy Stepanov d1bfdc32b2 [msan] Allow waitpid while in __msan_init(). 
This is used in symbolizer init.

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

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

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

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

Orignal headlines:

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

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

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

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

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