[all-commits] [llvm/llvm-project] 5d2baa: [libc] Add Initial Support for Signals

[Alex Brachet via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 5d2baa956ac3784e3956e35f610e118cacc7128b
      https://github.com/llvm/llvm-project/commit/5d2baa956ac3784e3956e35f610e118cacc7128b
  Author: Alex Brachet <alexbrachetmialot at gmail.com>
  Date:   2020-02-20 (Thu, 20 Feb 2020)

  Changed paths:
    M libc/config/linux/api.td
    A libc/config/linux/signal.h.in
    M libc/include/CMakeLists.txt
    A libc/include/signal.h.def
    M libc/lib/CMakeLists.txt
    M libc/spec/linux.td
    M libc/spec/stdc.td
    M libc/src/CMakeLists.txt
    A libc/src/signal/CMakeLists.txt
    A libc/src/signal/linux/CMakeLists.txt
    A libc/src/signal/linux/raise.cpp
    A libc/src/signal/linux/signal.h
    A libc/src/signal/raise.h
    M libc/test/src/CMakeLists.txt
    A libc/test/src/signal/CMakeLists.txt
    A libc/test/src/signal/raise_test.cpp

  Log Message:
  -----------
  [libc] Add Initial Support for Signals

Summary:
This patch adds signal support on Linux. The current implementation gets the SIG* macros and types like `sigset_t` from <linux/signals.h>

This patch also adds raise(3), and internal routines  `block_all_signals` and `restore_signals`

Reviewers: sivachandra, MaskRay, gchatelet

Reviewed By: sivachandra

Subscribers: libc-commits, mgorny, tschuett

Differential Revision: https://reviews.llvm.org/D74528