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NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | STANDARDS | HISTORY | SEE ALSO | COLOPHON |
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PR_SET_VMA(2const) PR_SET_VMA(2const)
PR_SET_VMA - set an attribute for virtual memory areas
Standard C library (libc, -lc)
#include <linux/prctl.h> /* Definition of PR_* constants */
#include <sys/prctl.h>
int prctl(PR_SET_VMA, long attr, unsigned long addr, unsigned long size,
const char *_Nullable val);
Sets an attribute specified in attr for virtual memory areas
starting from the address specified in addr and spanning the size
specified in size. val specifies the value of the attribute to
be set.
Note that assigning an attribute to a virtual memory area might
prevent it from being merged with adjacent virtual memory areas
due to the difference in that attribute's value.
Currently, attr must be one of:
PR_SET_VMA_ANON_NAME
Set a name for anonymous virtual memory areas. val should
be a pointer to a null-terminated string containing the
name. The name length including null byte cannot exceed
80 bytes. If val is NULL, the name of the appropriate
anonymous virtual memory areas will be reset. The name
can contain only printable ascii characters (isprint(3)),
except '[', ']', '\', '$', and '`'.
On success, 0 is returned. On error, -1 is returned, and errno
is set to indicate the error.
EINVAL attr is not a valid attribute.
EINVAL addr is an invalid address.
Linux.
Linux 5.17.
prctl(2)
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Linux man-pages 6.9.1 2024-06-15 PR_SET_VMA(2const)
Pages that refer to this page: prctl(2)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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