2023-03-06 14:42:04 +01:00
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// SPDX-License-Identifier: BSD-2-Clause
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// Copyright CM4all GmbH
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// author: Max Kellermann <mk@cm4all.com>
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2022-03-29 11:11:40 +02:00
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#pragma once
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#ifdef __linux__
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# include <sys/prctl.h>
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/* fallback definitions if our libc is older than the kernel */
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# ifndef PR_SET_VMA
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# define PR_SET_VMA 0x53564d41
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# endif
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# ifndef PR_SET_VMA_ANON_NAME
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# define PR_SET_VMA_ANON_NAME 0
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# endif
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#endif // __linux__
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/**
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* Set a name for the specified virtual memory area.
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*
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* This feature requires Linux 5.17.
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*/
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inline void
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SetVmaName(const void *start, size_t len, const char *name)
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{
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#ifdef __linux__
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prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, (unsigned long)start, len,
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(unsigned long)name);
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2022-05-19 14:01:32 +02:00
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#else
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(void)start;
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(void)len;
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(void)name;
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2022-03-29 11:11:40 +02:00
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#endif
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}
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