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| 1 | //===-- Implementation header for longjmp -----------------------*- C++ -*-===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #ifndef LLVM_LIBC_SRC_SETJMP_LONGJMP_H |
| 10 | #define LLVM_LIBC_SRC_SETJMP_LONGJMP_H |
| 11 | |
| 12 | #include "hdr/types/jmp_buf.h" |
| 13 | #include "src/__support/macros/config.h" |
| 14 | #include "src/__support/macros/properties/compiler.h" |
| 15 | |
| 16 | namespace LIBC_NAMESPACE_DECL { |
| 17 | |
| 18 | // TODO(https://github.com/llvm/llvm-project/issues/112427) |
| 19 | // Some of the architecture-specific definitions are marked `naked`, which in |
| 20 | // GCC implies `nothrow`. |
| 21 | // |
| 22 | // Right now, our aliases aren't marked `nothrow`, so we wind up in a situation |
| 23 | // where clang will emit -Wmissing-exception-spec if we add `nothrow` here, but |
| 24 | // GCC will emit -Wmissing-attributes here without `nothrow`. We need to update |
| 25 | // LLVM_LIBC_FUNCTION to denote when a function throws or not. |
| 26 | |
| 27 | #ifdef LIBC_COMPILER_IS_GCC |
| 28 | [[gnu::nothrow]] |
| 29 | #endif |
| 30 | void longjmp(jmp_buf buf, int val); |
| 31 | |
| 32 | } // namespace LIBC_NAMESPACE_DECL |
| 33 | |
| 34 | #endif // LLVM_LIBC_SRC_SETJMP_LONGJMP_H |
| 35 |
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