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
ea61d08185
[sanitizer] Add interceptors for localtime and friends.
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llvm-svn: 175499
2013-02-19 09:19:16 +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
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
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
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
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
ffffbefa43
[msan] gethostbyname interceptor.
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llvm-svn: 173249
2013-01-23 10:43:38 +00:00
f9a7aba34a
[msan] Simplify test code.
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llvm-svn: 173155
2013-01-22 12:33:11 +00:00
2b65c0d1cf
[msan] Test handling of volatile bitfields.
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llvm-svn: 173154
2013-01-22 12:31:39 +00:00
ef68259d26
[msan] Stop using volatile assignments as undef checks in MSan tests.
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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
163ab9d0a5
CMake: create AddCompilerRT module and implement convenience add_compiler_rt_object_library function
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llvm-svn: 172826
2013-01-18 16:05:21 +00:00
193b45f4fe
CMake variables renaming: X86_64->x86_64 I386->i386
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llvm-svn: 172812
2013-01-18 12:45:44 +00:00
222076e972
[sanitizer] Common *scanf interceptors.
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llvm-svn: 172805
2013-01-18 11:17:23 +00:00
e3a325197a
[msan] More interceptors.
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strtod and friends, dladdr, getrusage
llvm-svn: 172720
2013-01-17 13:42:17 +00:00
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
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llvm-svn: 171160
2012-12-27 13:19:23 +00:00
8798729a22
[msan] Explicitly link unit tests with libstdc++.
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llvm-svn: 171151
2012-12-27 08:44:19 +00:00
a57662d7c4
Add MSan unit tests to check-msan and check-all.
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llvm-svn: 171065
2012-12-25 13:10:15 +00:00
f45d92bb22
MemorySanitizer unit tests.
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llvm-svn: 171062
2012-12-25 12:39:56 +00:00
Reid Kleckner