KINFO_GETVMMAP(3)

KINFO_GETVMMAP(3) | Library Functions Manual | KINFO_GETVMMAP(3)

# NAME

kinfo_getvmmap — function for getting per-process memory map information

# LIBRARY

System Utilities Library (libutil, -lutil)

# SYNOPSIS

#include <sys/types.h>
#include <sys/sysctl.h>
#include <util.h>
struct kinfo_vmentry *
kinfo_getvmmap(pid_t pid, size_t *cntp);

# DESCRIPTION

This function is used for obtaining virtual memory mapping information of a particular process.
The pid field contains the process identifier. This should be the a process that you have privilege to access. The cntp field is allows the caller to know how many records are returned.
This function is a wrapper around sysctl(3) with the `KERN_PROC_VMMAP` mib. While the kernel returns a packed structure, this function expands the data into a fixed record format.

# RETURN VALUES

On success the kinfo_getvmmap() function returns a pointer to an array of struct kinfo_vmentry structures as defined by <sys/sysctl.h>. The array was obtained by an internal call to malloc(3) and must be freed by the caller with a call to free(3). On failure the kinfo_getvmmap() function returns `NULL`.

# SEE ALSO

free(3), malloc(3)

September 16, 2015 | NetBSD 8.0