40 lines
2.6 KiB
C
40 lines
2.6 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above copyright notice and this permission notice appear in all copies. │
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│ │
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│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
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│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/internal.h"
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#include "libc/nt/runtime.h"
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#include "libc/runtime/directmap.h"
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/**
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* Obtains memory mapping directly from system.
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*
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* The mmap() function needs to track memory mappings in order to
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* support Windows NT and Address Sanitizer. That memory tracking can be
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* bypassed by calling this function. However the caller is responsible
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* for passing the magic memory handle on Windows NT to CloseHandle().
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*/
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struct DirectMap __mmap(void *addr, size_t size, unsigned prot, unsigned flags,
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int fd, int64_t off) {
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if (!IsWindows()) {
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return (struct DirectMap){mmap$sysv(addr, size, prot, flags, fd, off),
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kNtInvalidHandleValue};
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} else {
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return __mmap$nt(addr, size, prot, flags, fd, off);
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}
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}
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