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
1841219abd
tsan: restructure signal handling to allow recursive handling
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Fixes issue
https://code.google.com/p/thread-sanitizer/issues/detail?id=71
llvm-svn: 216903
2014-09-02 12:27:45 +00:00
dc1caa7cb8
tsan: address comments in r214912
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See http://reviews.llvm.org/D4794
llvm-svn: 216900
2014-09-02 09:34:34 +00:00
3ae9193371
[libsanitizer] Fix the Android build.
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llvm-svn: 216885
2014-09-01 15:38:16 +00:00
21202ba8dd
[asan] Update asan_device_setup to support Android L Preview.
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llvm-svn: 216884
2014-09-01 15:37:50 +00:00
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
34fb3799a3
tsan: fix false positive related to signal handlers
...
Users expect synchronization between sigaction and arrival
of the signal. See the test for details.
llvm-svn: 216878
2014-09-01 12:46:42 +00:00
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
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
c148f7c3af
[asan] enable poison_array_cookie back
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llvm-svn: 216705
2014-08-29 01:16:18 +00:00
ac77055272
[asan] introduce __asan_load_cxx_array_cookie: check that the array cookie address is properly poisoned and return the cookie value. If not, return 0 to avoid infinite loop of DTORs (in case of use-after-free). Calls to this function will be inserted by clang (separate change)
...
llvm-svn: 216692
2014-08-28 22:28:04 +00:00
1e3b338606
[asan] disable poison_array_cookie while I am investigating a false positive on chromium (I suspect that LLVM looses nosanitizer metadata; no test yet)
...
llvm-svn: 216684
2014-08-28 20:24:05 +00:00
f77d20b1a9
[ASan/Win] Add a test case for r216663 [-Zl vs LIBCMT vs asan_win_uar_thunk]
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llvm-svn: 216665
2014-08-28 13:20:23 +00:00
737370da20
[ASan/Win] Add the -Zl flag to avoid /DEFAULTLIB:libcmt directive in the asan_win_uar_thunk object file
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This directive results in 'symbol already defined' when linking DLLs that use -MD
llvm-svn: 216663
2014-08-28 12:28:04 +00:00
2164fa3b9b
[ubsan] Follow-up for r216657: fixed the line numbers in the test.
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llvm-svn: 216661
2014-08-28 10:25:17 +00:00
53cce89a81
[UBSan] Temporarily disable checks for stack traces in UBSan reports on Darwin
...
to make the tests green.
Slow stack unwinding is disabled in libsanitizer on Darwin now.
llvm-svn: 216657
2014-08-28 09:25:06 +00:00
83061238d4
[ASan] Whitespace fix. No functionality change.
...
llvm-svn: 216544
2014-08-27 13:43:18 +00:00
5d321d759d
[asan] Add asprintf negative test.
...
llvm-svn: 216542
2014-08-27 12:46:58 +00:00
6add9fe958
[ASan/Win] Enable building the MD runtime by default
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llvm-svn: 216534
2014-08-27 10:17:20 +00:00
8f4e736080
[asan] Restore asan-rt name on linux back to pre-r216380.
...
There is no reason to have different library names for shared and static
cases on linux. It also breaks Android where we install the shared asan-rt
library into the system and should keep the old name.
This change reverts most of r216380 limiting it to win32 targets only.
llvm-svn: 216533
2014-08-27 09:46:54 +00:00
9455c5ab81
[asan] add a test for poison_array_cookie=1
...
llvm-svn: 216494
2014-08-26 22:05:12 +00:00
08347ca4fd
[lsan] Implement the public allocator interface in standalone LSan.
...
llvm-svn: 216459
2014-08-26 14:28:28 +00:00
93a2906e80
[lsan] Implement __sanitizer_print_stack_trace() in standalone LSan.
...
llvm-svn: 216454
2014-08-26 12:52:41 +00:00
47030475a0
[ASan/Win] Disable warning C4391: incorrect return type for intrinsic function
...
This warning makes it a bit hard to define strlen and wcslen interceptors in an elegant yet portable way
llvm-svn: 216450
2014-08-26 12:33:00 +00:00
81885731a8
[ASan/Win] Rename asan_dll_thunk.cc to asan_win_dll_thunk.cc
...
llvm-svn: 216448
2014-08-26 10:21:37 +00:00
6903e10ddf
[ASan/Win] Add an extra thunk.lib to handle stack-use-after-return option
...
With this patch, "check-asan" passes all the tests with both MT and MD ASan RTL if you set COMPILER_RT_BUILD_SHARED_ASAN to ON
(PR20214)
llvm-svn: 216447
2014-08-26 10:08:24 +00:00
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
dc8caada51
[ASan/Win] Add /DEBUG to the MD RTL link flags
...
llvm-svn: 216387
2014-08-25 16:45:53 +00:00
2311f4dfaa
[ASan] Replace CMake if/APPEND/endif with append_if
...
llvm-svn: 216386
2014-08-25 16:40:39 +00:00
0a88b25c43
[ASan/Win] Intercept memory allocation functions in the MD CRT
...
llvm-svn: 216382
2014-08-25 13:19:05 +00:00
ea3ce790dc
[ASan] Rename the ASan dynamic RT
...
Reviewed at http://reviews.llvm.org/D5026
llvm-svn: 216380
2014-08-25 11:44:06 +00:00
2ccbc621df
[UBSan] Add support for printing backtraces to all UBSan handlers
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llvm-svn: 216289
2014-08-22 21:42:04 +00:00
ea2402ebf4
[ubsan] Follow-up for r216263: fix the expected line number.
...
llvm-svn: 216266
2014-08-22 12:44:16 +00:00
220ddacf8d
[ASan/Win] Land the trivial bits of -MD RTL support (PR20214)
...
llvm-svn: 216265
2014-08-22 12:38:07 +00:00
f2d24473fe
[ASan] Use check_library_exists to determine if libc/libstdc++ are available
...
llvm-svn: 216264
2014-08-22 12:26:34 +00:00
66ae9712c5
[ubsan] Do not run Function/function.cpp on Darwin where -fsanitize=function is not supported.
...
llvm-svn: 216263
2014-08-22 11:09:10 +00:00
373863d31e
Follow-up for r215436: use SIZE_T for strlen and wcslen interceptors.
...
llvm-svn: 216184
2014-08-21 16:12:46 +00:00
a14ef30443
[ASan] Turns out we should always intercept __cxa_throw
...
At least check-asan works with this change.
If the change breaks anything, we'll need to add:
a) a comment describing why we have to use INTERCEPT_FUNCTION rather than
ASAN_INTERCEPT_FUNC
and
b) a test case.
llvm-svn: 216177
2014-08-21 13:33:39 +00:00
6d2022b2e0
Fix latent bug in try_compile macro and use CMAKE_EXE_LINKER_FLAGS
...
when testing for supported architectures, as suggested by Andy Gibbs.
llvm-svn: 216083
2014-08-20 17:12:58 +00:00
82ff058cf9
DFSan's set label function should avoid writing to the shadow memory when the write would not change the value in memory.
...
When writing a label to shadow memory, don't write if the value is already set to the value being written. This dramatically reduces real memory consumption in programs with sparse use of labels.
Test Plan: It would be nice to test that unnecessary writes are skipped, but I do not see how a unit test could do this.
Patch by Sam Kerner!
Differential Revision: http://reviews.llvm.org/D4894
llvm-svn: 215961
2014-08-19 01:47:33 +00:00
2e39027931
[LSan] Parse common flags from LSAN_OPTIONS even if LSan is combined with
...
another sanitizer.
A user may run both LSan and LSan+ASan. It is weird to pass path to leak
suppression file (or other common sanitizer flags, like "verbosity") in
"LSAN_OPTIONS" in the first case and in "ASAN_OPTIONS" in the second case.
llvm-svn: 215949
2014-08-18 23:39:47 +00:00
00c02b297a
Add regression test for PR15823
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llvm-svn: 215941
2014-08-18 22:11:14 +00:00
591d15272e
[TSan] Add -lpthread to the test which uses pthread_ functions
...
llvm-svn: 215939
2014-08-18 22:09:17 +00:00
8da47ac82e
profile: Improve error messages on bad GCDA files
...
llvm-svn: 215933
2014-08-18 20:47:32 +00:00
4834653872
sanitizer_printf.cc: guard the va_copy hack on _MSC_VER
...
llvm-svn: 215932
2014-08-18 20:23:16 +00:00
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
cd21e2f7e4
[TSan] Initialize flags as early as possible. Disables back coredump, accidentally enabled in r215479. Add a test.
...
llvm-svn: 215763
2014-08-15 19:53:51 +00:00
48e21c07c1
Follow-up to r215724: fix a lint warning
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llvm-svn: 215725
2014-08-15 16:10:02 +00:00
5c84264194
[ASan/Win] Introduce a new macro for malloc-like function attributes; also, clang-format the definitions of these functions
...
llvm-svn: 215724
2014-08-15 16:08:53 +00:00
3e00116dc1
[ASan/Win] Remove one more reference to __interception::GetRealFunctionAddress (follow-up to r215707)
...
llvm-svn: 215722
2014-08-15 15:41:03 +00:00
Dmitry Vyukov