clang-p2996

Files

Kuba Brecka 5bdf86ec7c [sanitizer] Fix a crash when demangling Swift symbols, take 2

To invoke the Swift demangler, we use dlsym to locate swift_demangle. However, dlsym malloc's storage and stores it in thread-local storage. Since allocations from the symbolizer are done with the system allocator (at least in TSan, interceptors are skipped when inside the symbolizer), we will crash when we try to deallocate later using the sanitizer allocator again.

To fix this, let's just not call dlsym from the demangler, and call it during initialization. The dlsym function calls malloc, so it needs to be only used after our allocator is initialized. Adding a Symbolizer::LateInitialize call that is only invoked after all other initializations.

Differential Revision: http://reviews.llvm.org/D20015

llvm-svn: 269291

2016-05-12 13:11:03 +00:00

scripts

For the asan_symbolize.py script, use addr2line as the default system

2015-12-29 21:36:34 +00:00

tests

[ASan] Add shadow offset for SystemZ.

2016-04-30 10:02:12 +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

…

asan_activation.cc

[sanitizier] initializing common flags.

2016-03-21 20:53:20 +00:00

asan_activation.h

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asan_allocator.cc

[asan] Assert in __sanitizer_ptr_{sub,cmp} if one of the pointers was freed.

2016-04-29 20:37:34 +00:00

asan_allocator.h

[asan] Assert in __sanitizer_ptr_{sub,cmp} if one of the pointers was freed.

2016-04-29 20:37:34 +00:00

asan_blacklist.txt

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asan_debugging.cc

[compiler-rt] Apply modernize-use-nullptr fixes in sanitizers

2015-10-01 00:22:21 +00:00

asan_fake_stack.cc

[compiler-rt] Fix build (again) by wrapping lines to 80 chars (NFC)

2015-10-01 02:15:40 +00:00

asan_fake_stack.h

Revert "Apply modernize-use-default to compiler-rt."

2015-10-30 18:52:31 +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

[sanitizer] Add memset, memmove, and memcpy to the common interceptors

2016-03-25 19:33:45 +00:00

asan_globals.cc

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

2016-03-28 20:28:17 +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

[sanitizers] Get the proper symbol version when long double transition is involved.

2016-04-27 21:24:21 +00:00

asan_interceptors.h

[asan] Add __strdup interceptor.

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

asan_interface_internal.h

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

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

asan_internal.h

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

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

asan_linux.cc

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

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

asan_lock.h

…

asan_mac.cc

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

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

asan_malloc_linux.cc

[Sanitizer] Pass proper values to DTLS_on_libc_memalign.

2016-01-14 00:04:37 +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

[asan] Intercept all Heap* related imports from ucrtbase.dll

2016-03-24 20:19:48 +00:00

asan_mapping.h

[ASan] Add shadow offset for SystemZ.

2016-04-30 10:02:12 +00:00

asan_new_delete.cc

[asan] Export new and delete operators on Windows

2016-03-23 20:45:52 +00:00

asan_poisoning.cc

[ASan] Fix the links to bugs and wikipages.

2015-12-04 17:37:40 +00:00

asan_poisoning.h

Add descriptive names to sanitizer entries in /proc/self/maps. Helps debugging.

2015-05-29 22:31:28 +00:00

asan_posix.cc

[asan] [SystemZ] Add slop for stack address detection.

2016-04-18 09:01:19 +00:00

asan_preinit.cc

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asan_report.cc

[asan] Bail out on stack overflow in recovery mode.

2016-05-06 07:09:22 +00:00

asan_report.h

[asan] Prefer alloc-dealloc-mismatch to new-delete-type-mismatch.

2016-04-13 21:04:27 +00:00

asan_rtl.cc

[sanitizer] Fix a crash when demangling Swift symbols, take 2

2016-05-12 13:11:03 +00:00

asan_scariness_score.h

[asan] fix the Windows build (MSVC says: cannot specify explicit initializer for arrays)

2016-02-08 19:33:36 +00:00

asan_stack.cc

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asan_stack.h

Revert "[LSAN] Fix test swapcontext.cc on MIPS"

2016-04-22 14:56:30 +00:00

asan_stats.cc

[ASan] Clean up obsolete stats.

2015-06-26 19:18:02 +00:00

asan_stats.h

[ASan] Clean up obsolete stats.

2015-06-26 19:18:02 +00:00

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

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asan_thread.cc

[LSan] Use __tls_get_addr interceptor to keep track of dynamic TLS.

2016-01-14 18:50:09 +00:00

asan_thread.h

[LSan] Use __tls_get_addr interceptor to keep track of dynamic TLS.

2016-01-14 18:50:09 +00:00

asan_win_dll_thunk.cc

[asan] Intercept strdup on Windows

2016-03-22 00:52:47 +00:00

asan_win_dynamic_runtime_thunk.cc

Wrap 81 character line to satisfy linter

2016-03-22 00:53:04 +00:00

asan_win.cc

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

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

asan.syms.extra

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CMakeLists.txt

[cmake] Address Samsonov's post-commit review of r262723

2016-03-05 10:01:04 +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