PR_MEMINFO(3PROC) Process Control Library Functions PR_MEMINFO(3PROC)

NAME

pr_meminfo - inject meminfo system call into victim process

LIBRARY

Process Control Library (libproc, -lproc)

SYNOPSIS

#include <libproc.h>

int
pr_meminfo(struct ps_prochandle *P, const uint64_t *addrs, int addr_count,
const uint_t *info, int info_count, uint64_t *outdata,
uint_t *validity);

DESCRIPTION

The pr_meminfo() function injects the meminfo(2) system call into the
target process P by means of the agent LWP. If the process handle P is the
value NULL then this will be equivalent to calling meminfo(2) on the
currently running process.

The arguments addrs, addr_count, info, info_count, outdata, and validity
have the same meaning as in meminfo(2). See meminfo(2) for the full
description and purpose of the meminfo system call and its arguments.

The pr_meminfo() function only works on active processes. Process handles
that correspond to core files, zombie processes, or ELF objects do not
support system call injection.

RETURN VALUES

Upon successful completion, the pr_meminfo() function's return value is
that described in meminfo(2). Otherwise, -1 is returned and errno is set
to ENOSYS to indicate that the system call could not be injected.

ERRORS

For the full list of errors see the ERRORS section in meminfo(2).

The pr_meminfo() function will fail if:

ENOSYS An error occurred while trying to invoke the agent LWP
and inject a system call in the process handle P or the
process handle P does not support system call injection.

INTERFACE STABILITY

Uncommitted

MT-LEVEL
See LOCKING in libproc(3LIB).

SEE ALSO

meminfo(2), libproc(3LIB), proc(5)

illumos November 27, 2023 illumos