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llvm-project/compiler-rt
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Jianzhou Zhao 0f3fd3b281 [dfsan] Add thread registration 
This is a part of https://reviews.llvm.org/D95835.

This change is to address two problems
1) When recording stacks in origin tracking, libunwind is not async signal safe. Inside signal callbacks, we need
to use fast unwind. Fast unwind needs threads
2) StackDepot used by origin tracking is not async signal safe, we set a flag per thread inside
a signal callback to prevent from using it.

The thread registration is similar to ASan and MSan.

Related MSan changes are
* 98f5ea0dba
* f653cda269
* 5a7c364343

Some changes in the diff are used in the next diffs
1) The test case pthread.c is not very interesting for now. It will be
  extended to test origin tracking later.
2) DFsanThread::InSignalHandler will be used by origin tracking later.

Reviewed-by: morehouse

Differential Revision: https://reviews.llvm.org/D95963
 		2021-02-05 17:38:59 +00:00
..
cmake [CMake][compiler-rt][RISCV] Support RISC-V cross-compilation 2021-01-31 23:52:57 +00:00
docs
…
include [Branch-Rename] Fix some links 2021-02-01 16:43:21 +05:30
lib [dfsan] Add thread registration 2021-02-05 17:38:59 +00:00
test [dfsan] Add thread registration 2021-02-05 17:38:59 +00:00
tools [GWP-ASan] Add inbuilt options parser. 2021-01-15 12:57:05 -08:00
unittests [Scudo] [GWP-ASan] Add GWP-ASan to Scudo Standalone. 2019-12-13 09:09:41 -08:00
utils [compiler-rt] [netbsd] Update generate_netbsd_syscalls.awk 2020-09-10 20:16:17 +02:00
www [Branch-Rename] Fix some links 2021-02-01 16:43:21 +05:30
.clang-tidy [NFC][compiler-rt] Refine .clang-tidy checks 2020-09-05 15:42:15 -07:00
.gitignore
…
CMakeLists.txt [CMake] Remove dead code setting policies to NEW 2021-01-19 17:19:36 +02:00
CODE_OWNERS.TXT
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CREDITS.TXT
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LICENSE.TXT
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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.

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