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Dmitry Vyukov 6bd917a31f asan: optimization experiments 
The experiments can be used to evaluate potential optimizations that remove
instrumentation (assess false negatives). Instead of completely removing
some instrumentation, you set Exp to a non-zero value (mask of optimization
experiments that want to remove instrumentation of this instruction).
If Exp is non-zero, this pass will emit special calls into runtime
(e.g. __asan_report_exp_load1 instead of __asan_report_load1). These calls
make runtime terminate the program in a special way (with a different
exit status). Then you run the new compiler on a buggy corpus, collect
the special terminations (ideally, you don't see them at all -- no false
negatives) and make the decision on the optimization.

The exact reaction to experiments in runtime is not implemented in this patch.
It will be defined and implemented in a subsequent patch.

http://reviews.llvm.org/D8198

llvm-svn: 232501
 		2015-03-17 16:59:11 +00:00
..
scripts [asan] Allow users of asan_symbolize.py to forbid fallback to atos/addr2line. 2015-03-06 17:05:28 +00:00
tests Move use of __builtin_longjmp under the same conditions as the only 2015-03-05 20:17:05 +00:00
CMakeLists.txt [CMake] Make sure we built one variant of i386/i686 runtime libraries. 2015-02-26 21:03:41 +00:00
Makefile.mk Revert "Remove support for building sanitizers from Makefile/autoconf build." 2015-02-17 23:30:51 +00:00
README.txt Remove support for building sanitizers from Makefile/autoconf build on Linux. 2015-02-18 22:26:49 +00:00
asan.syms.extra [ASan] ASan can be combined with LSan and UBSan, so export symbol from them as well. 2013-10-23 15:36:22 +00:00
asan_activation.cc [asan] Allow changing verbosity in activation flags. 2015-01-20 13:21:20 +00:00
asan_activation.h [ASan] Change activation strategy. 2014-12-19 20:35:53 +00:00
asan_activation_flags.inc [asan] Allow changing verbosity in activation flags. 2015-01-20 13:21:20 +00:00
asan_allocator.cc [asan] add flag quarantine_size_mb, deprecate quarantine_size 2015-01-07 02:37:52 +00:00
asan_allocator.h [asan] add a flag soft_rss_limit_mb 2015-01-06 23:53:32 +00:00
asan_blacklist.txt Ignore stack-buffer-overflow in std::_Find_elem<*> / std::num_get<...>::_Getifld 2014-05-07 14:40:23 +00:00
asan_debugging.cc [msan] Better use-after-free reports. 2015-01-22 13:33:16 +00:00
asan_fake_stack.cc [asan] Allow changing verbosity in activation flags. 2015-01-20 13:21:20 +00:00
asan_fake_stack.h [asan] introduce two functions that will allow implementations of C++ garbage colection to work with asan's fake stack 2014-02-06 06:56:22 +00:00
asan_flags.cc [LSan] Make parent tool responsible for initializing LSan flags. 2015-02-17 18:50:30 +00:00
asan_flags.h [Sanitizer] Change InitializeFlags() signatures. NFC. 2015-02-12 00:36:42 +00:00
asan_flags.inc [Sanitizer] Refactor SuppressionContext class. 2015-02-20 17:41:59 +00:00
asan_globals.cc [ASan/Win] Work around PR22545: call LLVM global_dtors in the MD atexit() 2015-03-02 19:41:09 +00:00
asan_init_version.h [ASan] Change fake stack and local variables handling. 2014-12-11 21:53:19 +00:00
asan_interceptors.cc asan: optimization experiments 2015-03-17 16:59:11 +00:00
asan_interceptors.h [ASan] NFC: Factor out platform-specific interceptors 2015-03-16 14:22:53 +00:00
asan_interface_internal.h asan: optimization experiments 2015-03-17 16:59:11 +00:00
asan_internal.h asan: fix signal handling during stoptheworld 2015-03-02 17:36:02 +00:00
asan_linux.cc [ASan] NFC: Factor out platform-specific interceptors 2015-03-16 14:22:53 +00:00
asan_lock.h asan/tsan: move blocking mutex from asan to sanitizer_common 2013-01-14 07:51:39 +00:00
asan_mac.cc [ASan] NFC: Factor out platform-specific interceptors 2015-03-16 14:22:53 +00:00
asan_malloc_linux.cc [asan] Remove leftover debug printf. 2014-07-17 13:05:21 +00:00
asan_malloc_mac.cc Revert "[ASan] Add the new __asan_mz_* symbols to asan_interface_internal.h" 2015-02-04 19:14:35 +00:00
asan_malloc_win.cc [msan] Remove MSanDR and supporting code. 2014-11-18 10:33:15 +00:00
asan_mapping.h [asan][mips] Fix MIPS64 Asan mapping 2015-01-31 09:13:58 +00:00
asan_new_delete.cc [msan] Remove MSanDR and supporting code. 2014-11-18 10:33:15 +00:00
asan_poisoning.cc asan: optimization experiments 2015-03-17 16:59:11 +00:00
asan_poisoning.h [asan] use MADV_NOHUGEPAGE for shadow to reduce the actual memory usage 2015-01-21 02:05:31 +00:00
asan_posix.cc asan: fix signal handling during stoptheworld 2015-03-02 17:36:02 +00:00
asan_preinit.cc [asan] Revert r221882. 2014-11-14 13:02:28 +00:00
asan_report.cc asan: optimization experiments 2015-03-17 16:59:11 +00:00
asan_report.h [Asan] Pack signal context into a structure 2014-11-25 13:00:21 +00:00
asan_rtl.cc asan: optimization experiments 2015-03-17 16:59:11 +00:00
asan_stack.cc [ASan] Allow to atomically modify malloc_context_size at runtime. 2014-12-16 01:23:03 +00:00
asan_stack.h [ASan] Allow to atomically modify malloc_context_size at runtime. 2014-12-16 01:23:03 +00:00
asan_stats.cc [Sanitizer] Kill deprecated allocator interfaces in ASan, MSan and TSan in favor of 2014-08-12 20:28:20 +00:00
asan_stats.h [ASan] Clarify that AsanThread objects are allocated only via mmap(). No functionality change. 2013-11-27 13:22:21 +00:00
asan_suppressions.cc [sanitizer] use simpler symbolizer interface (GetModuleNameForPc) where applicable 2015-03-05 01:30:36 +00:00
asan_suppressions.h [asan] add suppressions for odr violations 2015-02-25 00:49:12 +00:00
asan_thread.cc [ASan] Refactor thread starting code. 2014-12-05 17:31:13 +00:00
asan_thread.h [ASan] Refactor thread starting code. 2014-12-05 17:31:13 +00:00
asan_win.cc [ASan/Win] Fix a CHECK failure when an exception is thrown from a callback passed to BindIoCompletionCallback 2015-03-17 16:50:59 +00:00
asan_win_dll_thunk.cc [asan] attempting to fix the windows build 2015-03-03 23:38:24 +00:00
asan_win_dynamic_runtime_thunk.cc [ASan/Win] Work around PR22545: call LLVM global_dtors in the MD atexit() 2015-03-02 19:41:09 +00:00

README.txt 

AddressSanitizer RT
================================
This directory contains sources of the AddressSanitizer (ASan) runtime library.

Directory structure:
README.txt       : This file.
Makefile.mk      : File for make-based build.
CMakeLists.txt   : File for cmake-based build.
asan_*.{cc,h}    : Sources of the asan runtime library.
scripts/*        : Helper scripts.
tests/*          : ASan unit tests.

Also ASan runtime needs the following libraries:
lib/interception/      : Machinery used to intercept function calls.
lib/sanitizer_common/  : Code shared between various sanitizers.

ASan runtime currently also embeds part of LeakSanitizer runtime for
leak detection (lib/lsan/lsan_common.{cc,h}).

ASan runtime can only be built by CMake. You can run ASan tests
from the root of your CMake build tree:

make check-asan

For more instructions see:
http://code.google.com/p/address-sanitizer/wiki/HowToBuild