maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
llvm-project/compiler-rt
History
Dmitry Vyukov b5ff187b7b tsan: mmap shadow stack 
We used to mmap C++ shadow stack as part of the trace region
before ed7f3f5bc9 ("tsan: move shadow stack into ThreadState"),
which moved the shadow stack into TLS. This started causing
timeouts and OOMs on some of our internal tests that repeatedly
create and destroy thousands of threads.
Allocate C++ shadow stack with mmap and small pages again.
This prevents the observed timeouts and OOMs.
But we now need to be more careful with interceptors that
run after thread finalization because FuncEntry/Exit and
TraceAddEvent all need the shadow stack.

Reviewed By: vitalybuka

Differential Revision: https://reviews.llvm.org/D113786
 		2021-11-13 09:12:55 +01:00
..
cmake [compiler-rt] separate lsan, ubsan, stats configuration from SANITIZER_COMMON_SUPPORTED_OS 2021-11-10 19:16:20 -08:00
docs Prepare Compiler-RT for GnuInstallDirs, matching libcxx, document all 2021-07-13 15:21:41 +00:00
include [InstrProfData] Bump the raw profile version to 8 2021-10-05 09:57:56 -07:00
lib tsan: mmap shadow stack 2021-11-13 09:12:55 +01:00
test Revert "[sanitizer] Fix test linking" 2021-11-12 23:42:35 -08:00
tools [GWP-ASan] Add inbuilt options parser. 2021-01-15 12:57:05 -08:00
unittests [test] Fix asan dynamic unit tests with per-target runtime dirs 2021-10-14 16:47:25 -04:00
utils [compiler-rt] NFC: Fix trivial typo 2021-09-04 14:12:58 +05:30
www [compiler-rt] Document that builtins is known to work on OpenBSD. 2021-09-07 04:25:12 -04:00
.clang-tidy NFC: .clang-tidy: Inherit configs from parents to improve maintainability 2021-06-08 08:25:59 -07:00
.gitignore
…
CMakeLists.txt [cmake] By default do not instrument compiler-rt if LLVM_BUILD_INSTRUMENTED_COVERAGE is ON 2021-11-09 10:59:25 +01:00
CODE_OWNERS.TXT
…
CREDITS.TXT
…
LICENSE.TXT
…
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.

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