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33 Commits

Author SHA1 Message Date
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 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
Evgeniy Stepanov e7a7a9b972 [msan] Fix sigaction interceptor. 
llvm-svn: 178868
 2013-04-05 12:58:07 +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
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
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 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 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 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
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
Evgeniy Stepanov ea61d08185 [sanitizer] Add interceptors for localtime and friends. 
llvm-svn: 175499
 2013-02-19 09:19:16 +00:00
Evgeniy Stepanov e676f66fe3 [msan] Allow zero buf pointer in getcwd() interceptor. 
llvm-svn: 174970
 2013-02-12 14:36:22 +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
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 2538bd1901 [msan] Remove icmp tests that require exact shadow propagation. 
llvm-svn: 173686
 2013-01-28 13:45:16 +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 ffffbefa43 [msan] gethostbyname interceptor. 
llvm-svn: 173249
 2013-01-23 10:43:38 +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
Evgeniy Stepanov 222076e972 [sanitizer] Common *scanf interceptors. 
llvm-svn: 172805
 2013-01-18 11:17:23 +00:00
Evgeniy Stepanov e3a325197a [msan] More interceptors. 
strtod and friends, dladdr, getrusage

llvm-svn: 172720
 2013-01-17 13:42:17 +00:00
Evgeniy Stepanov f45d92bb22 MemorySanitizer unit tests. 
llvm-svn: 171062
 2012-12-25 12:39:56 +00:00