734aab4066
[Sanitizer] Use a common mutex to prevent mixing reports from different sanitizers. This fixes PR15516
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llvm-svn: 178853
2013-04-05 07:30:29 +00:00
7b0e132551
[sanitizer] Use ucontext_t instead of "struct ucontext".
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Fixes Mac build.
llvm-svn: 178755
2013-04-04 09:03:56 +00:00
1f8b3538b4
[msan] Unpoison siginfo_t and ucontext_t in signal handlers.
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Add wrappers for all user signal handlers to unpoison the handler's arguments.
llvm-svn: 178754
2013-04-04 08:22:52 +00:00
c3525ce6ac
[sanitizer] while doing fast unwinding make sure that the frame pointer is aligned; fix lint
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llvm-svn: 178747
2013-04-04 06:52:40 +00:00
f8213b4eb3
[sanitizer] More interceptors.
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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
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
c91e327cba
Build and install .syms files alongside sanitizer runtimes. These are used to
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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
ecbf64648f
[msan] Handle dlopen() failure in dlopen interceptor.
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llvm-svn: 177728
2013-03-22 11:59:49 +00:00
93a842bd1f
[msan] Move test main and gtest include to separate files.
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llvm-svn: 177718
2013-03-22 09:01:26 +00:00
bfe9df221d
[msan] Place dlopen in an anon namespace.
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llvm-svn: 177716
2013-03-22 08:49:36 +00:00
0af672326a
[sanitizer] Replace more platform checks with SANITIZER_ constants.
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llvm-svn: 177400
2013-03-19 14:33:38 +00:00
b4a218db34
[sanitizer] Don't adjust the size of the user-allocated stack.
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Moved this code to sanitizer_common.
llvm-svn: 177383
2013-03-19 09:30:52 +00:00
c6bce93591
[msan] Intercept readdir64.
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llvm-svn: 177065
2013-03-14 12:49:23 +00:00
4062a396c7
[msan] Fix a typo in test.
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llvm-svn: 177059
2013-03-14 11:58:13 +00:00
fe0199ea54
[msan] Options for switching between fast and cfi unwinders in run time.
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Does not change default behavior.
llvm-svn: 177057
2013-03-14 11:47:03 +00:00
231894a902
[sanitizer] Intercept frexp and friends.
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llvm-svn: 177056
2013-03-14 11:34:39 +00:00
ead6cf7c72
[msan] Intercept __strdup, strndup, __strndup.
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llvm-svn: 177052
2013-03-14 11:10:36 +00:00
96f82f8ac3
[sanitizer] Fix lint.
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llvm-svn: 176943
2013-03-13 10:20:35 +00:00
d7ab381f53
[Sanitizer] Build ASan, TSan and MSan runtimes with -fno-rtti.
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llvm-svn: 176940
2013-03-13 09:18:30 +00:00
98f5ea0dba
[msan] Increase stack size as required.
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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
06d3aa4884
[Sanitizer] Change MemoryMappingLayout methods to also report memory protection flags (for future use in leak checker). Patch by Sergey Matveev.
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llvm-svn: 176931
2013-03-13 06:51:02 +00:00
26d5bc7fdf
[msan] Use sptr instead of ptrdiff_t.
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llvm-svn: 176854
2013-03-12 07:21:17 +00:00
c9d382b5a4
[msan] intercept dlopen and clear shadow for it
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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
063dfe3244
[msan] Block reports from interceptors during _Unwind_Backtrace
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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
218c582cb5
[msan] Lit tests for __attribute__((no_sanitize_memory)).
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llvm-svn: 176248
2013-02-28 11:25:54 +00:00
57d6f737e6
[sanitizer] Add MSan to Makefile-based build rules.
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llvm-svn: 175737
2013-02-21 13:55:54 +00:00
76dc3a81ea
[msan] Use slow stack unwinder in UMR reports.
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llvm-svn: 175510
2013-02-19 12:43:18 +00:00
adaca58526
[msan] Fix ReExec on linux.
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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
ea61d08185
[sanitizer] Add interceptors for localtime and friends.
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llvm-svn: 175499
2013-02-19 09:19:16 +00:00
ec87e785a3
[msan] don't check shadow inside interceptors if we are inside symbolizer; add weak function __msan_default_options that overrides default options
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llvm-svn: 175040
2013-02-13 07:19:47 +00:00
e676f66fe3
[msan] Allow zero buf pointer in getcwd() interceptor.
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llvm-svn: 174970
2013-02-12 14:36:22 +00:00
93686fc6f1
[MSan] symbolize correct PC when printing Summary message
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llvm-svn: 174956
2013-02-12 10:46:39 +00:00
257274e754
[msan] Lit tests for MemorySanitizer.
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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
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.
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llvm-svn: 174595
2013-02-07 08:04:56 +00:00
bda64b4d40
[sanitizer] make the error messages from sanitizer_common contain the actual tool name
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llvm-svn: 174059
2013-01-31 14:11:21 +00:00
358698279d
[sanitizer] Further split private and public sanitizer headers.
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And make msan_interface.h C-compatible.
llvm-svn: 173928
2013-01-30 13:12:08 +00:00
0d92533b29
Use LLVM_BUILD_TYPE instead of CMAKE_BUILD_TYPE in compiler-rt unit tests to match the behavior of llvm unittests
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llvm-svn: 173926
2013-01-30 12:18:49 +00:00
49a32c1d08
[Sanitizer] update style checker script and fix namespace style warnings
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llvm-svn: 173910
2013-01-30 07:45:58 +00:00
eac7f934f0
[msan] Cleanup public interface header.
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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
9f7e8c1433
[msan] A runtime call to support custom allocators.
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llvm-svn: 173687
2013-01-28 13:52:49 +00:00
2538bd1901
[msan] Remove icmp tests that require exact shadow propagation.
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llvm-svn: 173686
2013-01-28 13:45:16 +00:00
5311754b62
[CMake] Fix compiler-rt tests after r173617
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llvm-svn: 173668
2013-01-28 07:16:22 +00:00
0e5becb830
[msan] Tests for ICmp handling.
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llvm-svn: 173456
2013-01-25 15:39:11 +00:00
fa79cd65e2
[sanitizer] fix calloc overflow in asan/tsan/msan
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llvm-svn: 173441
2013-01-25 11:46:22 +00:00
d1bfdc32b2
[msan] Allow waitpid while in __msan_init().
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This is used in symbolizer init.
llvm-svn: 173263
2013-01-23 14:22:05 +00:00
ffffbefa43
[msan] gethostbyname interceptor.
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llvm-svn: 173249
2013-01-23 10:43:38 +00:00
fdf3fa69c2
[msan] Remove the trap handler code.
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llvm-svn: 173161
2013-01-22 14:29:15 +00:00
03ee782bee
[msan] Follow -msan-keep-going in reports from interceptors.
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llvm-svn: 173158
2013-01-22 13:35:45 +00:00
8fdf7d0586
[msan] Fix linkage type of __msan_track_origins.
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llvm-svn: 173157
2013-01-22 13:34:57 +00:00
f9a7aba34a
[msan] Simplify test code.
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llvm-svn: 173155
2013-01-22 12:33:11 +00:00
Alexey Samsonov