547e345666
The macro llvmlibc_errno has also been removed. This change completes the switch to using a hermetic errno for unit tests. Fixes #61037 Reviewed By: lntue Differential Revision: https://reviews.llvm.org/D146005
28 lines
1.1 KiB
C++
28 lines
1.1 KiB
C++
//===-- Implementation of errno -------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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namespace __llvm_libc {
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extern "C" {
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#ifdef LIBC_COPT_PUBLIC_PACKAGING
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// TODO: Declare __llvmlibc_errno only under LIBC_COPT_PUBLIC_PACKAGING and
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// __llvmlibc_internal_errno otherwise.
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// In overlay mode, this will be an unused thread local variable as libc_errno
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// will resolve to errno from the system libc's errno.h. In full build mode
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// however, libc_errno will resolve to this thread local variable via the errno
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// macro defined in LLVM libc's public errno.h header file.
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// TODO: Use a macro to distinguish full build and overlay build which can be
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// used to exclude __llvmlibc_errno under overlay build.
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thread_local int __llvmlibc_errno;
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#else
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thread_local int __llvmlibc_internal_errno;
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#endif
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} // extern "C"
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} // namespace __llvm_libc
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