Commit Graph

137 Commits

Author SHA1 Message Date
Evgeniy Stepanov 460067823b [sanitizer] Interceptors for wait*.
llvm-svn: 179096
2013-04-09 14:34:59 +00:00
Evgeniy Stepanov b4eac2f810 [msan] Interceptors for pipe2 and socketpair.
llvm-svn: 179022
2013-04-08 13:45:12 +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 7948c648bf [msan] A runtime option to disable wrapping of signal handlers.
llvm-svn: 178865
2013-04-05 11:59:16 +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
Evgeniy Stepanov ecbf64648f [msan] Handle dlopen() failure in dlopen interceptor.
llvm-svn: 177728
2013-03-22 11:59:49 +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 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
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
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
Evgeniy Stepanov 9f7e8c1433 [msan] A runtime call to support custom allocators.
llvm-svn: 173687
2013-01-28 13:52:49 +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 03ee782bee [msan] Follow -msan-keep-going in reports from interceptors.
llvm-svn: 173158
2013-01-22 13:35:45 +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
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
Evgeniy Stepanov 84f46d9993 [msan] Improve recvfrom interceptor.
llvm-svn: 171071
2012-12-25 16:51:57 +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 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