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d13988bd5f
This doesn't have a working symbolicator yet, but it does build and it can obtain a basic backtrace. It also doesn't include a working `swift-backtrace` program yet. rdar://101623384
69 lines
1.8 KiB
C++
69 lines
1.8 KiB
C++
//===--- Libc.h - Imports from the C library --------------------*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2023 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See https://swift.org/LICENSE.txt for license information
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// See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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//
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// Extra utilities for libc
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_BACKTRACING_LIBC_H
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#define SWIFT_BACKTRACING_LIBC_H
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include <fcntl.h>
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#ifdef _WIN32
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#include <io.h>
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#endif
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// .. Swift affordances ........................................................
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#ifdef __cplusplus
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namespace swift {
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namespace runtime {
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namespace backtrace {
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#endif
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/* open() is usually declared as a variadic function; these don't import into
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Swift. */
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static inline int _swift_open(const char *filename, int oflag, int mode) {
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#ifdef _WIN32
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int pmode = 0;
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if (mode & 0222)
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pmode |= _S_IWRITE;
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if (mode & 0444)
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pmode |= _S_IREAD;
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int fd;
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errno_t err = _sopen_s(&fd, filename, oflag, _SH_DENYNO, pmode);
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if (err != 0) {
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return -1;
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}
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return fd;
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#else
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return open(filename, oflag, mode);
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#endif
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}
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/* errno is typically not going to be easily accessible (it's often a macro),
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so add a get_errno() function to do that. */
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static inline int _swift_get_errno() { return errno; }
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static void _swift_set_errno(int err) { errno = err; }
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#ifdef __cplusplus
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} // namespace backtrace
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} // namespace runtime
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} // namespace swift
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#endif
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#endif // SWIFT_BACKTRACING_LIBC_H
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