Files
clang-p2996/libc/src/stdlib/abort.cpp
Michael Jones a0b65a7bcd [libc] Switch to use a macro which does not insert a section for every libc function.
Summary:
The new macro also inserts the C alias for the C++ implementations
without needing an objcopy based post processing step. The CMake
rules have been updated to reflect this. More CMake cleanup can be
taken up in future rounds and appropriate TODOs have been added for them.

Reviewers: mcgrathr, sivachandra

Subscribers:
2021-01-08 23:52:35 +00:00

31 lines
1.0 KiB
C++

//===-- Implementation of abort -------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "src/__support/common.h"
#include "src/signal/raise.h"
#include "src/stdlib/_Exit.h"
#include "src/stdlib/abort.h"
namespace __llvm_libc {
LLVM_LIBC_FUNCTION(void, abort, ()) {
// TODO: When sigprocmask and sigaction land:
// Unblock SIGABRT, raise it, if it was ignored or the handler returned,
// change its action to SIG_DFL, raise it again.
// TODO: When C11 mutexes land:
// Acquire recursive mutex (in case the current signal handler for SIGABRT
// itself calls abort we don't want to deadlock on the same thread trying
// to acquire it's own mutex.)
__llvm_libc::raise(SIGABRT);
__llvm_libc::raise(SIGKILL);
__llvm_libc::_Exit(127);
}
} // namespace __llvm_libc