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