llvm-project/compiler-rt
Hans Wennborg 900d8a9a3b [profile] Fix file contention causing dropped counts on Windows under -fprofile-generate
See PR43425:
https://bugs.llvm.org/show_bug.cgi?id=43425

When writing profile data on Windows we were opening profile file with
exclusive read/write access.

In case we are trying to write to the file from multiple processes
simultaneously, subsequent calls to CreateFileA would return
INVALID_HANDLE_VALUE.

To fix this, I changed to open without exclusive access and then take a
lock.

Patch by Michael Holman!

Differential revision: https://reviews.llvm.org/D70330
2019-11-27 15:55:13 +01:00
..
cmake [CMake] Use correct include path for InstrProfData.inc on Darwin 2019-11-24 13:26:01 -08:00
docs
include Reland "[CMake] Support installation of InstrProfData.inc" 2019-11-22 14:09:46 -08:00
lib [profile] Fix file contention causing dropped counts on Windows under -fprofile-generate 2019-11-27 15:55:13 +01:00
test [profile] Fix file contention causing dropped counts on Windows under -fprofile-generate 2019-11-27 15:55:13 +01:00
tools Add GWP-ASan fuzz target to compiler-rt/tools. 2019-08-27 18:28:07 +00:00
unittests [compiler-rt] Rename lit.*.cfg.* -> lit.*.cfg.py.* 2019-06-27 20:56:04 +00:00
utils [compiler-rt] Sync NetBSD syscall hooks with 9.99.17 2019-11-03 16:22:02 +01:00
www [www] Change URLs to HTTPS. 2019-10-24 13:25:15 -07:00
.arcconfig [compiler-rt] Set up .arcconfig to point to new Diffusion CRT repository 2017-12-06 20:55:32 +00:00
.gitignore Add .pyc files to .gitignore to compiler-rt 2017-07-24 21:51:12 +00:00
CMakeLists.txt Fix include guard and properly order __deregister_frame_info. 2019-11-12 14:54:41 -08:00
CODE_OWNERS.TXT
CREDITS.TXT
LICENSE.TXT Fix typos throughout the license files that somehow I and my reviewers 2019-01-21 09:52:34 +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.

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