4 * cc -I/usr/src/sys ksyscalls.c -o /usr/local/bin/ksyscalls -lkvm
6 * Dump syscall debugging info
8 * Copyright (c) 2011 The DragonFly Project. All rights reserved.
10 * This code is derived from software contributed to The DragonFly Project
11 * by Matthew Dillon <dillon@backplane.com>
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in
21 * the documentation and/or other materials provided with the
23 * 3. Neither the name of The DragonFly Project nor the names of its
24 * contributors may be used to endorse or promote products derived
25 * from this software without specific, prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
28 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
30 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
31 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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33 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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35 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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37 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
41 #define _KERNEL_STRUCTURES_
42 #include <sys/param.h>
44 #include <sys/malloc.h>
45 #include <sys/signalvar.h>
46 #include <sys/vnode.h>
47 #include <sys/namecache.h>
48 #include <sys/syscall.h>
51 #include <vm/vm_page.h>
52 #include <vm/vm_kern.h>
53 #include <vm/vm_page.h>
54 #include <vm/vm_object.h>
55 #include <vm/vm_map.h>
56 #include <vm/swap_pager.h>
57 #include <vm/vnode_pager.h>
68 { "_SysCallsWorstCase" },
72 static void kkread(kvm_t *kd, u_long addr, void *buf, size_t nbytes);
75 main(int ac, char **av)
77 const char *corefile = NULL;
78 const char *sysfile = NULL;
82 uint64_t syscallsworstcase[SYS_MAXSYSCALL];
84 while ((ch = getopt(ac, av, "M:N:")) != -1) {
93 fprintf(stderr, "%s [-M core] [-N system]\n", av[0]);
100 if ((kd = kvm_open(sysfile, corefile, NULL, O_RDONLY, "kvm:")) == NULL) {
104 if (kvm_nlist(kd, Nl) != 0) {
108 kkread(kd, Nl[0].n_value, syscallsworstcase, sizeof(syscallsworstcase));
110 for (i = 0; i < SYS_MAXSYSCALL; ++i) {
111 if (syscallsworstcase[i])
112 printf("call %3d %6jduS\n", i, (intmax_t)syscallsworstcase[i]);
117 kkread(kvm_t *kd, u_long addr, void *buf, size_t nbytes)
119 if (kvm_read(kd, addr, buf, nbytes) != nbytes) {