clang-p2996

Files

Evgeniy Stepanov d3305afc75 Return memory to OS right after free (not in the async thread).

Summary:
In order to avoid starting a separate thread to return unused memory to
the system (the thread interferes with process startup on Android,
Zygota waits for all threads to exit before fork, but this thread never
exits), try to return it right after free.

Reviewers: eugenis

Subscribers: cryptoad, filcab, danalbert, kubabrecka, llvm-commits

Patch by Aleksey Shlyapnikov.

Differential Revision: https://reviews.llvm.org/D27003

llvm-svn: 288091

2016-11-29 00:22:50 +00:00

scripts

[asan] Fix asan-rt bitness issues in asan_device_setup on Android.

2016-11-08 00:59:58 +00:00

tests

[asan/win] Fix incremental linking vs. global registration

2016-11-23 17:37:00 +00:00

.clang-format

Tell clang-format that (most) sanitizers are written using Google style guide.

2015-11-19 22:11:10 +00:00

asan_activation_flags.inc

Return memory to OS right after free (not in the async thread).

2016-11-29 00:22:50 +00:00

asan_activation.cc

Return memory to OS right after free (not in the async thread).

2016-11-29 00:22:50 +00:00

asan_activation.h

…

asan_allocator.cc

Return memory to OS right after free (not in the async thread).

2016-11-29 00:22:50 +00:00

asan_allocator.h

Return memory to OS right after free (not in the async thread).

2016-11-29 00:22:50 +00:00

asan_blacklist.txt

…

asan_debugging.cc

[asan] Add a new AddressDescription structure, which can describe any type of address.

2016-09-09 20:43:20 +00:00

asan_descriptions.cc

[asan] Fix GlobalAddressDescription::Print()

2016-09-20 20:33:18 +00:00

asan_descriptions.h

[asan] Reify ErrorGeneric

2016-09-21 20:18:18 +00:00

asan_errors.cc

[asan] Provide bug descriptions for all reports (not just ErrorGeneric)

2016-11-28 21:18:15 +00:00

asan_errors.h

[asan] Provide bug descriptions for all reports (not just ErrorGeneric)

2016-11-28 21:18:15 +00:00

asan_fake_stack.cc

fix random typos [NFC]

2016-08-05 18:49:08 +00:00

asan_fake_stack.h

fix random typos [NFC]

2016-08-05 18:49:08 +00:00

asan_flags.cc

[sanitizer] Add strchr* to the common interceptors

2016-03-21 21:36:17 +00:00

asan_flags.h

…

asan_flags.inc

[asan] Add a "dump_registers" flag to print out CPU registers after a SIGSEGV

2016-11-26 00:50:08 +00:00

asan_globals_win.cc

[asan/win] Check assumptions about the incremental linker more

2016-11-23 18:02:16 +00:00

asan_globals_win.h

[asan] Create a .ASAN$G(A-Z) section for global registration

2016-11-17 19:02:53 +00:00

asan_globals.cc

[asan/win] Skip incremental linker padding during unregistration

2016-11-23 18:28:04 +00:00

asan_init_version.h

[asan] Add runtime support for __asan_(un)register_image_globals

2016-03-28 20:28:17 +00:00

asan_interceptors.cc

[compiler-rt] Fix CHECK coding style [NFC]

2016-08-03 15:47:40 +00:00

asan_interceptors.h

[asan] Add __strdup interceptor.

2016-04-20 22:45:23 +00:00

asan_interface_internal.h

[compiler-rt] Add support for the dynamic shadow allocation

2016-09-30 17:47:34 +00:00

asan_internal.h

[asan] Reify ErrorDeadlySignal

2016-09-08 12:58:15 +00:00

asan_linux.cc

[asan] Add exception handler to map memory on demand on Win64.

2016-07-11 21:40:59 +00:00

asan_lock.h

…

asan_mac.cc

[asan] Add exception handler to map memory on demand on Win64.

2016-07-11 21:40:59 +00:00

asan_malloc_linux.cc

[asan, msan] Fix reallocation logic when IsInDlsymAllocPool(ptr) is true.

2016-09-26 08:11:21 +00:00

asan_malloc_mac.cc

[ASan] Retire mac_ignore_invalid_free, remove some dead code.

2015-12-04 16:17:55 +00:00

asan_malloc_win.cc

Fix _recalloc redefinition link error in ASan RTL

2016-10-11 23:13:13 +00:00

asan_mapping.h

[asan] Reapply: Switch to using dynamic shadow offset on iOS

2016-10-05 20:33:59 +00:00

asan_memory_profile.cc

[asan] minor fix in the asan memory profile

2016-08-23 18:13:51 +00:00

asan_new_delete.cc

[asan] Add C++17 aligned new/delete entrypoints. Patch by Jakub Jelinek, see https://reviews.llvm.org/D24771

2016-09-20 21:27:10 +00:00

asan_poisoning.cc

[asan] Remove runtime flag detect_stack_use_after_scope

2016-08-29 17:16:59 +00:00

asan_poisoning.h

[asan] first attempt at releasing free-d memory back to the system using madvise. Requires quite some tuning.

2016-08-26 23:58:42 +00:00

asan_posix.cc

[asan] Handle SIGBART signal description. (found by buildbot)

2016-09-08 13:28:26 +00:00

asan_preinit.cc

…

asan_report.cc

[asan] Provide bug descriptions for all reports (not just ErrorGeneric)

2016-11-28 21:18:15 +00:00

asan_report.h

[asan] Add a new AddressDescription structure, which can describe any type of address.

2016-09-09 20:43:20 +00:00

asan_rtl.cc

[asan] Refactor shadow memory initialization out of AsanInitInternal [NFC]

2016-11-28 21:40:41 +00:00

asan_scariness_score.h

Split ScarinessScore between its "storage" (POD), and an initializing object.

2016-08-30 17:08:47 +00:00

asan_stack.cc

…

asan_stack.h

[LSAN] Fix test swapcontext.cc on MIPS

2016-05-18 06:09:26 +00:00

asan_stats.cc

…

asan_stats.h

…

asan_suppressions.cc

[scan-build] fix logic error warning emitted on compiler-rt code base

2016-05-02 19:07:20 +00:00

asan_suppressions.h

…

asan_thread.cc

[ASAN] Pass previous stack information through __sanitizer_finish_switch_fiber

2016-09-28 12:28:16 +00:00

asan_thread.h

[ASAN] Pass previous stack information through __sanitizer_finish_switch_fiber

2016-09-28 12:28:16 +00:00

asan_win_dll_thunk.cc

[asan] Create a .ASAN$G(A-Z) section for global registration

2016-11-17 19:02:53 +00:00

asan_win_dynamic_runtime_thunk.cc

[asan] Create a .ASAN$G(A-Z) section for global registration

2016-11-17 19:02:53 +00:00

asan_win.cc

[asan] Create a .ASAN$G(A-Z) section for global registration

2016-11-17 19:02:53 +00:00

asan.syms.extra

…

CMakeLists.txt

[asan/win] Fix incremental linking vs. global registration

2016-11-23 17:37:00 +00:00

README.txt

[ASan] Fix the links to bugs and wikipages.

2015-12-04 17:37:40 +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:
https://github.com/google/sanitizers/wiki/AddressSanitizerHowToBuild