errno_location.cpp
777 Bytes
//===-- Implementation of __errno_location --------------------------------===//
//
// 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/errno/llvmlibc_errno.h"
#include "src/__support/common.h"
namespace __llvm_libc {
static thread_local int __errno = 0;
// __errno_location is not really an entry point but we still want it to behave
// like an entry point because the errno macro resolves to the C symbol
// "__errno_location".
int *LLVM_LIBC_ENTRYPOINT(__errno_location)() { return &__errno; }
} // namespace __llvm_libc