50 lines
998 B
C
50 lines
998 B
C
#include <sys/cdefs.h>
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#ifdef __FBSDID
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__FBSDID("$FreeBSD: head/lib/libutil/kinfo_getvmmap.c 186512 2008-12-27 11:12:23Z rwatson $");
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#endif
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__RCSID("$NetBSD: kinfo_getvmmap.c,v 1.3 2015/09/26 20:28:55 christos Exp $");
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#include <sys/param.h>
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#include <sys/user.h>
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#include <sys/sysctl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <util.h>
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#include <uvm/uvm_param.h>
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struct kinfo_vmentry *
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kinfo_getvmmap(pid_t pid, size_t *cntp)
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{
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int mib[5];
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int error;
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size_t len;
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struct kinfo_vmentry *kiv;
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*cntp = 0;
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len = 0;
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mib[0] = CTL_VM;
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mib[1] = VM_PROC;
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mib[2] = VM_PROC_MAP;
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mib[3] = pid;
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mib[4] = sizeof(*kiv);
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error = sysctl(mib, (u_int)__arraycount(mib), NULL, &len, NULL, 0);
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if (error)
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return NULL;
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len = len * 4 / 3;
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kiv = malloc(len);
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if (kiv == NULL)
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return NULL;
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error = sysctl(mib, (u_int)__arraycount(mib), kiv, &len, NULL, 0);
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if (error) {
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free(kiv);
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return NULL;
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}
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*cntp = len / sizeof(*kiv);
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return kiv; /* Caller must free() return value */
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}
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