glibc/sysdeps/unix/sysv/linux/setvmaname.h

37 lines
1.3 KiB
C

/* Utilities functions to name memory mappings.
Copyright (C) 2023-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef __SETVMANAME_H
#define __SETVMANAME_H
/* Set the NAME to the anonymous memory map START with size of LEN.
It assumes well-formatted input. */
#if IS_IN(libc) || IS_IN(rtld)
void __set_vma_name (void *start, size_t len, const char *name)
attribute_hidden;
#else
#include <sys/prctl.h>
static inline void __set_vma_name (void *start, size_t len, const char *name)
{
prctl (PR_SET_VMA, PR_SET_VMA_ANON_NAME, start, len, name);
}
#endif
#endif