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45 Commits

Author SHA1 Message Date
Evgeniy Stepanov 7eeb02bd09 [asan] Read process name from /proc/self/cmdline on Linux. 
Rename getBinaryBasename() to getProcessName() and, on Linux,
read it from /proc/self/cmdline instead of /proc/self/exe. The former
can be modified by the process. The main motivation is Android, where
application processes re-write cmdline to a package name. This lets
us setup per-application ASAN_OPTIONS through include=/some/path/%b.

llvm-svn: 243473
 2015-07-28 20:27:51 +00:00
Evgeniy Stepanov 5a268b10b3 [sanitizer] Implement logging to syslog. 
Previously, Android target had a logic of duplicating all sanitizer
output to logcat. This change extends it to all posix platforms via
the use of syslog, controlled by log_to_syslog flag. Enabled by
default on Android, off everywhere else.

A bit of cmake magic is required to allow Printf() to call a libc
function. I'm adding a stub implementation to support no-libc builds
like dfsan and safestack.

This is a second attempt. I believe I've fixed all the issues that
prompted the revert: Mac build, and all kinds of non-CMake builds
(there are 3 of those).

llvm-svn: 243051
 2015-07-23 22:05:20 +00:00
Evgeniy Stepanov ffbc4ec790 Revert r242975. 
Breaks Mac build.

llvm-svn: 242978
 2015-07-23 01:29:26 +00:00
Evgeniy Stepanov 4f03227fa2 [sanitizer] Implement logging to syslog. 
Previously, Android target had a logic of duplicating all sanitizer
output to logcat. This change extends it to all posix platforms via
the use of syslog, controlled by log_to_syslog flag. Enabled by
default on Android, off everywhere else.

A bit of cmake magic is required to allow Printf() to call a libc
function. I'm adding a stub implementation to support no-libc builds
like dfsan and safestack.

llvm-svn: 242975
 2015-07-22 23:57:19 +00:00
Yury Gribov 2d45554b82 [ASan] Add process basename to log name and error message to 
simplify analysis of sanitized systems logs.
    
Differential Revision: http://reviews.llvm.org/D7333

llvm-svn: 239134
 2015-06-05 06:08:23 +00:00
Yury Gribov ecfa592671 Removed r221896, it seems to break build in various ways. 
llvm-svn: 221912
 2014-11-13 19:37:30 +00:00
Yury Gribov 17072ef348 [ASan] Add process basename to log name and error message to simplify analysis of sanitized systems logs. 
Reviewed at http://reviews.llvm.org/D5724

llvm-svn: 221896
 2014-11-13 16:01:23 +00:00
Kostya Serebryany 2dd74371b2 [asan] [mips] added support of asan for mips64/mips64el, patch by Kumar Sukhani 
llvm-svn: 221800
 2014-11-12 18:23:16 +00:00
Hans Wennborg 4834653872 sanitizer_printf.cc: guard the va_copy hack on _MSC_VER 
llvm-svn: 215932
 2014-08-18 20:23:16 +00:00
Hans Wennborg 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
Timur Iskhodzhanov cc01fad1d9 [ASan/Win] Remove a hack that seems not to be required with VS2013 anymore 
llvm-svn: 215708
 2014-08-15 13:45:23 +00:00
Evgeniy Stepanov 350fe4b1af [asan] Android logging. 
This change duplicates all ASan output to system log on Android.

llvm-svn: 199887
 2014-01-23 11:34:41 +00:00
Evgeniy Stepanov 04c5a836a2 [sanitizer] Add a sanity check. 
llvm-svn: 199880
 2014-01-23 11:01:07 +00:00
Evgeniy Stepanov 29b7866c6c [sanitizer] Add printf format attributes. 
These were lost in a refactoring a long time ago.

llvm-svn: 199874
 2014-01-23 08:58:34 +00:00
Alexey Samsonov 0714b7b31b [Sanitizer] Support %.*s in internal printf implementation. Patch by Yuri Gribov. 
llvm-svn: 199724
 2014-01-21 10:59:44 +00:00
Sergey Matveev 9be70fbda9 [sanitizer] Introduce VReport and VPrintf macros and use them in sanitizer code. 
Instead of "if (common_flags()->verbosity) Report(...)" we now have macros.

llvm-svn: 196497
 2013-12-05 12:04:51 +00:00
Alexey Samsonov 4d369187ec [Sanitizer] Print symbolized stack frame using a single Printf() call. 
This reduces the number of "write" syscalls performed to print a single
stack frame description, and makes sanitizer output less intermixed with
program output. Also, add a number of unit tests.

llvm-svn: 194686
 2013-11-14 09:41:24 +00:00
Dmitry Vyukov 4314e319ab tsan: allow to override OnPrint() callback in Go runtime 
llvm-svn: 192576
 2013-10-14 09:52:40 +00:00
Timur Iskhodzhanov eee13914e2 Define SANITIZER_INTERFACE_ATTRIBUTE on Windows and fix all the places where SANITIZER_INTERFACE_ATTRIBUTE or SANITIZER_ATTRIBUTE_WEAK are used 
llvm-svn: 188261
 2013-08-13 11:42:45 +00:00
Sergey Matveev 9450108430 [sanitizer] Support padding with spaces in Printf. 
llvm-svn: 185082
 2013-06-27 15:30:44 +00:00
Dmitry Vyukov e979c5467c tsan: fix windows mingw build 
llvm-svn: 183644
 2013-06-10 10:02:02 +00:00
Timur Iskhodzhanov cc61eefd4b Fix MSVC W3 compiler warnings 
llvm-svn: 182857
 2013-05-29 14:11:44 +00:00
Peter Collingbourne ffaf2eac4d [nolibc] Move all platforms to internal_getpid. 
Before, we had an unused internal_getpid function for Linux, and a
platform-independent GetPid function.  To make the naming conventions
consistent for syscall-like functions, the GetPid syscall wrapper
in sanitizer_posix.cc is moved to sanitizer_mac.cc, and GetPid is
renamed to internal_getpid, bringing the Linux variant into use.

llvm-svn: 182132
 2013-05-17 16:56:53 +00:00
Dmitry Vyukov 93b2cba03b asan: fix windows build 
llvm-svn: 180788
 2013-04-30 13:30:29 +00:00
Dmitry Vyukov e8fa45a02c asan/tsan: fix printf(), on the second pass it prints garbage and crashes on random pointer dereference 
llvm-svn: 180784
 2013-04-30 12:27:48 +00:00
Alexey Samsonov 1a6cfb46e5 [Sanitizer] Rework r176802: share code between Printf and Report and simplify it a bit 
llvm-svn: 179755
 2013-04-18 13:18:23 +00:00
Alexey Samsonov 734aab4066 [Sanitizer] Use a common mutex to prevent mixing reports from different sanitizers. This fixes PR15516 
llvm-svn: 178853
 2013-04-05 07:30:29 +00:00
Alexey Samsonov 87c2a87b50 [Sanitizer] Fix OnPrint weak hook. Disable weak hooks for gotsan. 
llvm-svn: 178640
 2013-04-03 13:22:54 +00:00
Dmitry Vyukov f3bc56bb6b asan/tsan: change SANITIZER_GO to more general SANITIZER_SUPPORTS_WEAK_HOOKS 
llvm-svn: 178009
 2013-03-26 12:07:04 +00:00
Dmitry Vyukov 7886253fee asan/tsan: add Printf/Report hook 
The hook can be overriden in frontend to print to e.g. a file.

llvm-svn: 177864
 2013-03-25 12:58:09 +00:00
Evgeniy Stepanov 24aad9c0cb Break a >80 char line. 
llvm-svn: 176937
 2013-03-13 08:17:39 +00:00
Alexander Potapenko 1f78ad5da4 [ASan] Reduce the local buffer size in Report() not to fail the check enforced when building TSan runtime. 
llvm-svn: 176804
 2013-03-11 13:36:39 +00:00
Alexander Potapenko 18c916c6c5 [ASan] Try to use a small (512 bytes) stack-local buffer in Report() for short messages, fall back to MmapOrDie() in the case of a failure. 
This shall eliminate most of the cryptic "ERROR: failed to mmap" messages caused by recursively calling MmapOrDie() from MmapOrDie().

llvm-svn: 176802
 2013-03-11 11:47:43 +00:00
Richard Smith 54fc2370f9 Don't escape %s in printf usage message; it's not written by printf. 
llvm-svn: 170413
 2012-12-18 05:49:49 +00:00
Kostya Serebryany 734f1eb5f4 [asan/tsan] do not use __WORDSIZE macro, as it is glibc-private thing. Instead, define our own SANITIZER_WORDSIZE 
llvm-svn: 168424
 2012-11-21 12:38:58 +00:00
Alexey Samsonov 3a3488e4e1 [Sanitizer] replace while with internal_memset to make sure compiler won't replace it with library memset 
llvm-svn: 168422
 2012-11-21 11:12:57 +00:00
Richard Smith 05dce7e644 -fsanitize=undefined: Switch to using sanitizer_common for output. This gets us much closer to not depending on any system headers. 
llvm-svn: 167888
 2012-11-13 23:42:05 +00:00
Alexey Samsonov ad9d65feb8 [TSan] finally remove TsanPrintf in favor of Printf from sanitizer_common 
llvm-svn: 167294
 2012-11-02 12:17:51 +00:00
Kostya Serebryany 5b0a8f3f53 [asan] fix the va_arg usage 
llvm-svn: 163879
 2012-09-14 06:52:46 +00:00
Kostya Serebryany 45d849c4bd [asan] add asan option log_path=PATH to let users redirect asan reports to a file PATH.PID instead of stderr 
llvm-svn: 163872
 2012-09-14 04:35:14 +00:00
Kostya Serebryany d0d96bfb86 [asan/tsan] use InternalScopedBuffer instead of stack arrays. Use mmap inseted of InternalAlloc in InternalScopedBuffer 
llvm-svn: 162834
 2012-08-29 08:40:36 +00:00
Kostya Serebryany bb6f165952 [asan] get rid of AsanPrintf in favor of Printf from sanitizer_common 
llvm-svn: 162746
 2012-08-28 11:34:40 +00:00
Alexey Samsonov e1cb524226 [Sanitizer] Renaming: SNPrintf -> internal_snprintf (and move it to sanitizer libc) 
llvm-svn: 158710
 2012-06-19 09:21:57 +00:00
Alexey Samsonov 40d5b772e5 [Sanitizer] Switch to common mmap/munmap routines in ASan run-time. 
llvm-svn: 158078
 2012-06-06 16:15:07 +00:00
Alexey Samsonov 51ae983718 [Sanitizer]: Introduce a common internal printf function. For now, also use tool-specific wrappers TsanPrintf (its output is controlled by TSan flags) and AsanPrintf (which copies its results to the ASan-private buffer). Supported formats: %[z]{d,u,x}, %s, %p. Re-write all format strings in TSan according to this format (this should have no effect on 64-bit platforms). 
llvm-svn: 158065
 2012-06-06 13:11:29 +00:00