5e99e13b4c
Add support for mlockall() and munlockall(). These two functions comprise the _POSIX_MEMLOCK Option which is required by PSE51, PSE52, PSE53, and PSE54. Zephyr's on-demand paging API does not yet support pinning and unpinning *all* virtual memory regions, so these functions are expected to fail, setting errno to ENOSYS. Any other usage is currently categorized as undefined behaviour. Signed-off-by: Chris Friedt <cfriedt@tenstorrent.com>
26 lines
324 B
C
26 lines
324 B
C
/*
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* Copyright (c) 2024, Tenstorrent AI ULC
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <errno.h>
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#include <stddef.h>
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#include <sys/types.h>
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#include <zephyr/posix/sys/mman.h>
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int mlockall(int flags)
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{
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ARG_UNUSED(flags);
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errno = ENOSYS;
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return -1;
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}
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int munlockall(void)
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{
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errno = ENOSYS;
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return -1;
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}
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