llvm-project

History

Evgeniy Stepanov 208aae8ee0 [msan] Chained origins re-design.

Generalize StackDepot and create a new specialized instance of it to
efficiently (i.e. without duplicating stack trace data) store the
origin history tree.

This reduces memory usage for chained origins roughly by an order of
magnitude.

Most importantly, this new design allows us to put two limits on
stored history data (exposed in MSAN_OPTIONS) that help avoid
exponential growth in used memory on certain workloads.

See comments in lib/msan/msan_origin.h for more details.

llvm-svn: 209284

2014-05-21 09:02:13 +00:00

scripts

[asan] Fix x86 asm instrumentation to preserve flags.

2014-05-21 08:21:14 +00:00

tests

[asan] Fix x86 asm instrumentation to preserve flags.

2014-05-21 08:21:14 +00:00

asan_activation.cc

[asan] Reinitialize allocator quarantine on activation.

2014-02-03 14:19:08 +00:00

asan_activation.h

[asan] Fix a bunch of style issues.

2014-01-16 13:17:13 +00:00

asan_allocator2.cc

[asan] use some LIKELY/UNLIKELY

2014-05-14 14:03:31 +00:00

asan_allocator.h

[asan] fix the alloctor code to not use opaque data structure, which was larger than needed. This was a leftover of the allocator1=>allocator2 migration; thanks Yuri Gribov for reminding

2014-04-15 13:30:32 +00:00

asan_asm_instrumentation.S

[asan] Fix x86 asm instrumentation to preserve flags.

2014-05-21 08:21:14 +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_dll_thunk.cc

[ASan Win] Simplify and improve the way we forward ASan interface calls from DLLs

2014-05-20 14:26:19 +00:00

asan_fake_stack.cc

[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_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.h

[asan] Move the "coverage" flag to common flags.

2014-05-12 14:27:36 +00:00

asan_globals.cc

[asan] split detect_odr_violation into two: =2 detects all ODR violations, =1 detects only those where the variable sizes are different. BTW, the detector seems to be working well and finding nice bugs. Early adopters are welcome.

2014-04-28 12:47:58 +00:00

asan_interceptors.cc

[asan] use some LIKELY/UNLIKELY

2014-05-14 14:03:31 +00:00

asan_interceptors.h

[asan] use some LIKELY/UNLIKELY

2014-05-14 14:03:31 +00:00

asan_interface_internal.h

Fix typos

2014-05-15 02:22:34 +00:00

asan_internal.h

Fix typos

2014-05-15 02:22:34 +00:00

asan_linux.cc

Declare _DYNAMIC and dl_phdr_info in asan_linux.cc on FreeBSD

2014-04-09 13:37:19 +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] Optional support for dynamic ASan runtime on Linux.

2014-04-01 13:16:30 +00:00

asan_malloc_linux.cc

[asan] use some LIKELY/UNLIKELY

2014-05-14 14:03:31 +00:00

asan_malloc_mac.cc

[asan] use some LIKELY/UNLIKELY

2014-05-14 14:03:31 +00:00

asan_malloc_win.cc

Add support for _expand[_dbg] so we don't crash when _aligned_* allocation functions are used

2014-03-27 14:01:11 +00:00

asan_mapping.h

Add FreeBSD support to address sanitizer process mapping facilities

2014-05-12 11:03:46 +00:00

asan_new_delete.cc

[ASan] Split static ASan runtime in two parts: asan and asan_cxx.

2014-05-12 18:39:22 +00:00

asan_poisoning.cc

[asan] introduce interface function __sanitizer_verify_contiguous_container to verify annotations in vector-like containers

2014-05-06 14:41:01 +00:00

asan_poisoning.h

Work around PR19125: -Wconstant-logical-operand false positive

2014-03-13 10:43:02 +00:00

asan_posix.cc

A set of trivial changes to support sanitizers on FreeBSD.

2014-03-04 08:55:41 +00:00

asan_preinit.cc

[ASan] Rename __asan_preinit to __local_asan_preinit to avoid warnings from the linker which is trying to export all the __asan_* symbols

2013-05-23 09:15:20 +00:00

asan_report.cc

[ASan/Win] Enable demangling of global variable names

2014-05-14 13:55:59 +00:00

asan_report.h

[asan] implement an experimental detector of ODR violations. Not tested yet outside of a tiny test, may need tuning.

2014-04-25 08:58:28 +00:00

asan_rtl.cc

Fix typos

2014-05-15 02:22:34 +00:00

asan_stack.cc

[ASan] Get rid of ASan-specific functions for printing stack traces

2013-12-19 11:25:05 +00:00

asan_stack.h

[asan] use some LIKELY/UNLIKELY

2014-05-14 14:03:31 +00:00

asan_stats.cc

[msan] Chained origins re-design.

2014-05-21 09:02:13 +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_thread.cc

Fix typos

2014-05-15 02:22:34 +00:00

asan_thread.h

[ASan] Speed up stack trace unwinding for stacks of size 2.

2014-03-04 13:12:25 +00:00

asan_win.cc

[ASan] Optional support for dynamic ASan runtime on Linux.

2014-04-01 13:16:30 +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

CMakeLists.txt

[ASan Win] Simplify and improve the way we forward ASan interface calls from DLLs

2014-05-20 14:26:19 +00:00

Makefile.mk

[ASan] Split static ASan runtime in two parts: asan and asan_cxx.

2014-05-12 18:39:22 +00:00

README.txt

[ASan] Nuke output_tests/ in favor of lit_tests/. Stop using Makefile.old.

2012-09-06 06:39:02 +00:00

README.txt

AddressSanitizer RT
================================
This directory contains sources of the AddressSanitizer (asan) run-time library.
We are in the process of integrating AddressSanitizer with LLVM, stay tuned.

Directory structre:
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 run-time lirbary.
scripts/*        : Helper scripts.
tests/*          : ASan unit tests.
lit_tests/*      : ASan output tests.

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

Currently ASan runtime can be built by both make and cmake build systems.
(see compiler-rt/make and files Makefile.mk for make-based build and
files CMakeLists.txt for cmake-based build).

ASan unit and output tests work only with cmake. You may run this
command from the root of your cmake build tree:

make check-asan

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