llvm-project/compiler-rt
Maxim Ostapenko 62a0f55930 [sanitizer] Avoid possible deadlock in child process after fork
This patch addresses https://github.com/google/sanitizers/issues/774. When we
fork a multi-threaded process it's possible to deadlock if some thread acquired
StackDepot or allocator internal lock just before fork. In this case the lock
will never be released in child process causing deadlock on following memory alloc/dealloc
routine. While calling alloc/dealloc routines after multi-threaded fork is not allowed,
most of modern allocators (Glibc, tcmalloc, jemalloc) are actually fork safe. Let's do the same
for sanitizers except TSan that has complex locking rules.

Differential Revision: https://reviews.llvm.org/D33325

llvm-svn: 304285
2017-05-31 07:28:09 +00:00
..
cmake Allow builds to set COMPILER_RT_OS_DIR differently from CMAKE_SYSTEM_NAME 2017-05-24 22:41:49 +00:00
docs [sanitizers] Make it possible to XFAIL on the effective target, not just the default. 2016-08-09 11:50:53 +00:00
include [XRay][compiler-rt] Add __xray_remove_customevent_handler(...) 2017-05-22 03:23:54 +00:00
lib [sanitizer] Avoid possible deadlock in child process after fork 2017-05-31 07:28:09 +00:00
test [sanitizer] Avoid possible deadlock in child process after fork 2017-05-31 07:28:09 +00:00
unittests Add missing import 2017-04-07 01:24:48 +00:00
www Update references to new lists.llvm.org mailing lists. 2015-08-05 03:58:00 +00:00
.arcconfig Upgrade all the .arcconfigs to https. 2016-07-14 13:15:37 +00:00
.gitignore
CMakeLists.txt [cmake] Disable building enable_execute_stack.c for baremetal targets. 2017-05-10 15:34:25 +00:00
CODE_OWNERS.TXT [sanitizers] remove earthdok@ from owners 2016-05-18 18:52:18 +00:00
CREDITS.TXT
LICENSE.TXT Update copyright year to 2016. 2016-03-30 22:38:50 +00:00
README.txt

README.txt

Compiler-RT
================================

This directory and its subdirectories contain source code for the compiler
support routines.

Compiler-RT is open source software. You may freely distribute it under the
terms of the license agreement found in LICENSE.txt.

================================