| 1 | //===---------- Linux implementation of the mincore function --------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "src/sys/mman/mincore.h" |
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| 10 | |
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| 11 | #include "src/__support/OSUtil/syscall.h" // For internal syscall function. |
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| 12 | |
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| 13 | #include "src/errno/libc_errno.h" |
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| 14 | #include <sys/syscall.h> // For syscall numbers. |
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| 15 | |
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| 16 | namespace LIBC_NAMESPACE { |
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| 17 | |
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| 18 | LLVM_LIBC_FUNCTION(int, mincore, (void *addr, size_t len, unsigned char *vec)) { |
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| 19 | long ret = syscall_impl(SYS_mincore, arg1: reinterpret_cast<long>(addr), arg2: len, |
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| 20 | arg3: reinterpret_cast<long>(vec)); |
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| 21 | if (ret < 0) { |
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| 22 | libc_errno = static_cast<int>(-ret); |
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| 23 | return -1; |
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| 24 | } |
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| 25 | return 0; |
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| 26 | } |
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| 27 | |
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| 28 | } // namespace LIBC_NAMESPACE |
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| 29 | |
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