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Author SHA1 Message Date
Vedant Kumar 59ba7b8cd1 [compiler-rt] Apply modernize-use-nullptr fixes in sanitizers 
- Trim spaces.
- Use nullptr in place of 0 for pointer variables.
- Use '!p' in place of 'p == 0' for null pointer checks.
- Add blank lines to separate function definitions.
- Add 'extern "C"' or 'namespace foo' comments after the appropriate
  closing brackets

This is a continuation of work from 409b7b82. The focus here is on the
various sanitizers (not sanitizer_common, as before).

Patch by Eugene Zelenko!

Differential Revision: http://reviews.llvm.org/D13225

llvm-svn: 248966
 2015-10-01 00:22:21 +00:00
Reid Kleckner 12f6b9c8c0 [asan] Remove AsanPlatformThreadInit 
Since the CoreFoundation allocator replacement was moved in r173134, all
implementations of this function have been empty.

Reviewers: samsonov

Differential Revision: http://reviews.llvm.org/D11375

llvm-svn: 242811
 2015-07-21 17:42:37 +00:00
Yury Gribov c5243f0c6a [ASan] Move ASan runtime library self-checks to a more appropriate place. 
llvm-svn: 239018
 2015-06-04 07:23:09 +00:00
Timur Iskhodzhanov 817ac724e2 [ASan] NFC: Factor out platform-specific interceptors 
Reviewed at http://reviews.llvm.org/D8321

llvm-svn: 232377
 2015-03-16 14:22:53 +00:00
Dmitry Vyukov b79ac88155 asan: fix signal handling during stoptheworld 
The problem is that without SA_RESTORER flag, kernel ignores the handler. So tracer actually did not setup any handler.
Add SA_RESTORER flag when setting up handlers.
Add a test that causes SIGSEGV in stoptheworld callback.
Move SignalContext from asan to sanitizer_common to print better diagnostics about signal in the tracer thread.

http://reviews.llvm.org/D8005

llvm-svn: 230978
 2015-03-02 17:36:02 +00:00
Kuba Brecka 9a18c3016c Fix ASan's Noinst unit tests 
We currently skip all "Noinst" unit tests on OS X, which was probably caused when we removed the "allow_reexec" flag. The MaybeReexec function fails to re-execute when the runtime is linked statically, because there is no dylib to use. This patch adds an explicit DisableReexec function that is used from asan_noinst_test.cc and the runtime then doesn't try to re-execute.

Reviewed at http://reviews.llvm.org/D7493

llvm-svn: 228740
 2015-02-10 20:37:57 +00:00
Alexey Samsonov 95674c8181 Remove AsanInterceptsSignal in favor of (equivalent) IsDeadlySignal. 
llvm-svn: 225556
 2015-01-09 23:03:31 +00:00
Viktor Kutuzov 1f386f0f36 Fix getting IP, BP and SP for address sanitizer's needs on FreeBSD in 32-bit mode 
llvm-svn: 210988
 2014-06-15 13:56:28 +00:00
Evgeniy Stepanov e5c34ace7f [asan] Make ReplaceSystemMalloc optional on Android. 
Don't fail if __libc_malloc_dispatch is missing; continue running
with normal linux interceptors instead.

llvm-svn: 210322
 2014-06-06 10:57:21 +00:00
Kostya Serebryany 5181dd3a56 [asan] Improve vDSO check in AsanCheckDynamicRTPrereqs; patch by Yuri Gribov 
llvm-svn: 210012
 2014-06-02 10:39:40 +00:00
Evgeniy Stepanov dd7cb28572 [asan] Enable ASan on PowerPC. 
Patch by Peter Bergner.

llvm-svn: 209879
 2014-05-30 08:52:03 +00:00
Viktor Kutuzov 82185a2088 Declare _DYNAMIC and dl_phdr_info in asan_linux.cc on FreeBSD 
llvm-svn: 205852
 2014-04-09 13:37:19 +00:00
Alexey Samsonov 11ff0a26a4 [ASan] Fix incompatible runtimes check: don't iterate /proc/self/maps on every call to __asan_init 
llvm-svn: 205418
 2014-04-02 13:09:22 +00:00
Alexey Samsonov 2c66a22e56 [ASan] One more attempt to fix Android build 
llvm-svn: 205411
 2014-04-02 09:36:36 +00:00
Alexey Samsonov 107e4abfd0 [ASan] Fix Android build 
llvm-svn: 205311
 2014-04-01 13:42:16 +00:00
Alexey Samsonov 56b6ee9833 [ASan] Optional support for dynamic ASan runtime on Linux. 
Based on http://llvm-reviews.chandlerc.com/D3042 by Yuri Gribov!

llvm-svn: 205308
 2014-04-01 13:16:30 +00:00
Viktor Kutuzov ebb00e1553 Add FreeBSD 9.2 support to asan_linux.cc 
llvm-svn: 203658
 2014-03-12 12:44:36 +00:00
Alexey Samsonov 5ec35b75ef [FreeBSD] Provide FreeBSD-specific things for ASan. 
Patch by Viktor Kutuzov!

llvm-svn: 203100
 2014-03-06 09:05:52 +00:00
Alexey Samsonov 3d9adc0a73 [ASan] Speed up stack trace unwinding for stacks of size 2. 
Summary:
We don't need to do any work in this case - just take
the current PC and caller PC.

Reviewers: eugenis, ygribov

Reviewed By: eugenis

CC: llvm-commits

Differential Revision: http://llvm-reviews.chandlerc.com/D2936

llvm-svn: 202845
 2014-03-04 13:12:25 +00:00
Kostya Serebryany c98ce28533 [sanitizer] AArch64 sanitizer support; patch by Christophe Lyon and Yvan Roux 
llvm-svn: 201303
 2014-02-13 07:50:20 +00:00
Evgeniy Stepanov 6db97e82a4 Add a copy of missing <ucontext.h> for Android and enable ASan SEGV handler. 
This change adds a copy of <ucontext.h> for Android found in google-breakpad
that is missing from the official NDK.
ASan SEGV handler is still disabled by default and can be enabled with
ASAN_OPTIONS=handle_segv.

llvm-svn: 201084
 2014-02-10 13:34:43 +00:00
Alexander Potapenko cf4bef3161 [ASan] Move the signal handling-related flags to sanitizer_common. 
This change is a part of refactoring intended to have common signal handling behavior in all tools.

llvm-svn: 200295
 2014-01-28 09:28:57 +00:00
Chandler Carruth 736f9fd229 Revert three patches which were committed without explicit contribution 
by their authors.

This may break builds where others added code relying on these patches,
but please *do not* revert this commit. Instead, we will prepare patches
which fix the failures.

Reverts the following commits:
r168306: "[asan] support x32 mode in the fast stack unwinder. Patch by H.J. Lu"
r168356: "[asan] more support for powerpc, patch by Peter Bergner"
r196489: "[sanitizer] fix the ppc32 build (patch by Jakub Jelinek)"

llvm-svn: 196802
 2013-12-09 19:25:51 +00:00
Kostya Serebryany a92b07d684 [asan] support __hppa__ (by John David Anglin) 
llvm-svn: 194995
 2013-11-18 08:20:13 +00:00
Kostya Serebryany c1aa0e8f69 [asan] ASan Linux MIPS32 support (compiler-rt part), patch by Jyun-Yan Y 
llvm-svn: 183105
 2013-06-03 14:49:25 +00:00
Sergey Matveev af179b8d63 [sanitizer] Move GetStackTrace from ASan to sanitizer_common. 
llvm-svn: 181424
 2013-05-08 12:45:55 +00:00
Alexey Samsonov 21cb74318c [ASan] Kill the remainders of platform defines in favor of SANITIZER_ defines 
llvm-svn: 178629
 2013-04-03 07:29:53 +00:00
Alexey Samsonov 54afba8b62 [ASan] Switch ASan to generic ThreadRegistry from sanitizer_common. Delete ASan-specific AsanThreadRegistry. 
llvm-svn: 177634
 2013-03-21 11:23:41 +00:00
Alexey Samsonov cf025cb2e6 [ASan] Move GetCurrentThread/SetCurrentThread from AsanThreadRegistry class into plain functions: they don't actually use registry 
llvm-svn: 177501
 2013-03-20 09:23:28 +00:00
Evgeniy Stepanov 0af672326a [sanitizer] Replace more platform checks with SANITIZER_ constants. 
llvm-svn: 177400
 2013-03-19 14:33:38 +00:00
Evgeniy Stepanov d3b56605f1 [sanitizer] Move ASan platform macros to sanitizer_common and rename them appropriately. 
llvm-svn: 177397
 2013-03-19 13:54:41 +00:00
Alexey Samsonov 9585613334 [ASan] fixes for Android build 
llvm-svn: 172800
 2013-01-18 09:20:06 +00:00
Alexey Samsonov 4f1885a109 [ASan] minor changes to swapcontext handling: don't clear shadow memory if context stack is too large 
llvm-svn: 172727
 2013-01-17 15:45:28 +00:00
Dmitry Vyukov f22982bf0a asan/tsan: move blocking mutex from asan to sanitizer_common 
llvm-svn: 172380
 2013-01-14 07:51:39 +00:00
Kostya Serebryany bb69879d09 [asan] pop the internal stack frames in SlowUnwindStack, extend the test to check this 
llvm-svn: 170124
 2012-12-13 12:31:55 +00:00
Kostya Serebryany baf583c443 [asan] add two asan flags: fast_unwind_on_fatal and fast_unwind_on_malloc to allow using the slow CFI-based unwinder 
llvm-svn: 170117
 2012-12-13 09:34:23 +00:00
Kostya Serebryany 214b715061 [asan] two more bits for __sparc__ 
llvm-svn: 169141
 2012-12-03 18:39:21 +00:00
Kostya Serebryany f22c697f58 [asan] get rid of some of the uses of kPageSize. The intent is to get rid of it completely to support platforms with multiple possible page sizes. 
llvm-svn: 168517
 2012-11-23 15:38:49 +00:00
Alexey Samsonov aac36b345a [ASan] intercept swapcontext on Linux only 
llvm-svn: 168509
 2012-11-23 10:14:44 +00:00
Kostya Serebryany 6db8ad43df [asan] pop the two internal functions from the stack trace produced by _Unwind_Backtrace (Peter Bergner) 
llvm-svn: 168369
 2012-11-20 15:15:44 +00:00
Kostya Serebryany 46de580003 [asan] more support for powerpc, patch by Peter Bergner 
llvm-svn: 168356
 2012-11-20 07:00:42 +00:00
Dmitry Vyukov 4ee90c231a asan: sync with gcc r193553 
llvm-svn: 168151
 2012-11-16 11:26:05 +00:00
Kostya Serebryany ee92877f17 [asan] more refactoring to move StackTrace to sanitizer_common 
llvm-svn: 162752
 2012-08-28 13:25:55 +00:00
Kostya Serebryany 6b0d775229 [asan] some renaming before we move StackTrace into sanitizer_common 
llvm-svn: 162747
 2012-08-28 11:54:30 +00:00
Evgeniy Stepanov be01398612 A few tweaks for building ASanRT against Android NDK. 
llvm-svn: 162666
 2012-08-27 11:15:55 +00:00
Alexander Potapenko fefc1e989c If the program is linked to a dynamic ASan runtime which is not present in DYLD_INSERT_LIBRARIES 
(which, in turn, is required for our interceptors to take effect), re-exec the program with
DYLD_INSERT_LIBRARIES set.

llvm-svn: 162547
 2012-08-24 09:22:05 +00:00
Alexander Potapenko 51e6488b31 Intercept CFAllocator for each thread in the program. 
Test that child threads use the ASan allocator, that allocated memory can be passed to another thread and deallocated on it.
This should fix http://code.google.com/p/address-sanitizer/issues/detail?id=81

llvm-svn: 160630
 2012-07-23 14:07:58 +00:00
Alexey Samsonov 34efb8e9b9 [ASan] Use common flags parsing machinery. 
llvm-svn: 159933
 2012-07-09 14:36:04 +00:00
Alexey Samsonov c70d1086f6 [Sanitizer] move rest of mmap routines to common sanitizer runtime 
llvm-svn: 158452
 2012-06-14 14:42:58 +00:00
Alexey Samsonov 0c53a38abb [Sanitizer] move portable GetEnv to common sanitizer runtime 
llvm-svn: 158451
 2012-06-14 14:07:21 +00:00