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authorcvs2svn <cvs2svn@FreeBSD.org>2000-03-13 04:59:44 +0000
committercvs2svn <cvs2svn@FreeBSD.org>2000-03-13 04:59:44 +0000
commit842f30848780866cb822fe01c4d3d4576718ddb3 (patch)
tree212d1aae25966b1cb7769409e1ae97e626a32b95 /usr.bin/gcore
parentdd3552c8a7b2b6823668c2834f667466844698de (diff)
Notes
Diffstat (limited to 'usr.bin/gcore')
-rw-r--r--usr.bin/gcore/aoutcore.c342
1 files changed, 0 insertions, 342 deletions
diff --git a/usr.bin/gcore/aoutcore.c b/usr.bin/gcore/aoutcore.c
deleted file mode 100644
index 6ad9568ede3f..000000000000
--- a/usr.bin/gcore/aoutcore.c
+++ /dev/null
@@ -1,342 +0,0 @@
-/*-
- * Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#ifndef lint
-static const char copyright[] =
-"@(#) Copyright (c) 1992, 1993\n\
- The Regents of the University of California. All rights reserved.\n";
-#endif /* not lint */
-
-#ifndef lint
-#if 0
-static char sccsid[] = "@(#)gcore.c 8.2 (Berkeley) 9/23/93";
-#endif
-static const char rcsid[] =
- "$FreeBSD$";
-#endif /* not lint */
-
-/*
- * Originally written by Eric Cooper in Fall 1981.
- * Inspired by a version 6 program by Len Levin, 1978.
- * Several pieces of code lifted from Bill Joy's 4BSD ps.
- * Most recently, hacked beyond recognition for 4.4BSD by Steven McCanne,
- * Lawrence Berkeley Laboratory.
- *
- * Portions of this software were developed by the Computer Systems
- * Engineering group at Lawrence Berkeley Laboratory under DARPA
- * contract BG 91-66 and contributed to Berkeley.
- */
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/stat.h>
-#include <sys/proc.h>
-#include <sys/user.h>
-#include <sys/sysctl.h>
-
-#include <machine/vmparam.h>
-
-#include <a.out.h>
-#include <elf.h>
-#include <err.h>
-#include <fcntl.h>
-#include <kvm.h>
-#include <limits.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-#include "extern.h"
-
-static void core __P((int, int, struct kinfo_proc *));
-static void datadump __P((int, int, struct proc *, u_long, int));
-static void killed __P((int));
-static void restart_target __P((void));
-static void usage __P((void)) __dead2;
-static void userdump __P((int, struct proc *, u_long, int));
-
-kvm_t *kd;
-/* XXX undocumented routine, should be in kvm.h? */
-ssize_t kvm_uread __P((kvm_t *, const struct proc *, u_long, char *, size_t));
-
-static int data_offset;
-static pid_t pid;
-
-int
-main(argc, argv)
- int argc;
- char *argv[];
-{
- register struct proc *p;
- struct kinfo_proc *ki = NULL;
- struct exec exec;
- int ch, cnt, efd, fd, sflag, uid;
- char *binfile, *corefile;
- char errbuf[_POSIX2_LINE_MAX], fname[MAXPATHLEN + 1];
- int is_aout;
-
- sflag = 0;
- corefile = NULL;
- while ((ch = getopt(argc, argv, "c:s")) != -1) {
- switch (ch) {
- case 'c':
- corefile = optarg;
- break;
- case 's':
- sflag = 1;
- break;
- default:
- usage();
- break;
- }
- }
- argv += optind;
- argc -= optind;
-
- /* XXX we should check that the pid argument is really a number */
- switch (argc) {
- case 1:
- pid = atoi(argv[0]);
- asprintf(&binfile, "/proc/%d/file", pid);
- if (binfile == NULL)
- errx(1, "allocation failure");
- break;
- case 2:
- pid = atoi(argv[1]);
- binfile = argv[0];
- break;
- default:
- usage();
- }
-
- efd = open(binfile, O_RDONLY, 0);
- if (efd < 0)
- err(1, "%s", binfile);
-
- cnt = read(efd, &exec, sizeof(exec));
- if (cnt != sizeof(exec))
- errx(1, "%s exec header: %s",
- binfile, cnt > 0 ? strerror(EIO) : strerror(errno));
- if (!N_BADMAG(exec)) {
- is_aout = 1;
- /*
- * This legacy a.out support uses the kvm interface instead
- * of procfs.
- */
- kd = kvm_openfiles(0, 0, 0, O_RDONLY, errbuf);
- if (kd == NULL)
- errx(1, "%s", errbuf);
-
- uid = getuid();
-
- ki = kvm_getprocs(kd, KERN_PROC_PID, pid, &cnt);
- if (ki == NULL || cnt != 1)
- errx(1, "%d: not found", pid);
-
- p = &ki->kp_proc;
- if (ki->kp_eproc.e_pcred.p_ruid != uid && uid != 0)
- errx(1, "%d: not owner", pid);
-
- if (p->p_stat == SZOMB)
- errx(1, "%d: zombie", pid);
-
- if (p->p_flag & P_WEXIT)
- errx(1, "%d: process exiting", pid);
- if (p->p_flag & P_SYSTEM) /* Swapper or pagedaemon. */
- errx(1, "%d: system process", pid);
- if (exec.a_text != ptoa(ki->kp_eproc.e_vm.vm_tsize))
- errx(1, "The executable %s does not belong to"
- " process %d!\n"
- "Text segment size (in bytes): executable %ld,"
- " process %d", binfile, pid, exec.a_text,
- ptoa(ki->kp_eproc.e_vm.vm_tsize));
- data_offset = N_DATOFF(exec);
- } else if (IS_ELF(*(Elf_Ehdr *)&exec)) {
- is_aout = 0;
- close(efd);
- } else
- errx(1, "Invalid executable file");
-
- if (corefile == NULL) {
- (void)snprintf(fname, sizeof(fname), "core.%d", pid);
- corefile = fname;
- }
- fd = open(corefile, O_RDWR|O_CREAT|O_TRUNC, DEFFILEMODE);
- if (fd < 0)
- err(1, "%s", corefile);
-
- if (sflag) {
- signal(SIGHUP, killed);
- signal(SIGINT, killed);
- signal(SIGTERM, killed);
- if (kill(pid, SIGSTOP) == -1)
- err(1, "%d: stop signal", pid);
- atexit(restart_target);
- }
-
- if (is_aout)
- core(efd, fd, ki);
- else
- elf_coredump(fd, pid);
-
- (void)close(fd);
- exit(0);
-}
-
-/*
- * core --
- * Build the core file.
- */
-void
-core(efd, fd, ki)
- int efd;
- int fd;
- struct kinfo_proc *ki;
-{
- union {
- struct user user;
- char ubytes[ctob(UPAGES)];
- } uarea;
- struct proc *p = &ki->kp_proc;
- int tsize = ki->kp_eproc.e_vm.vm_tsize;
- int dsize = ki->kp_eproc.e_vm.vm_dsize;
- int ssize = ki->kp_eproc.e_vm.vm_ssize;
- int cnt;
-
- /* Read in user struct */
- cnt = kvm_read(kd, (u_long)p->p_addr, &uarea, sizeof(uarea));
- if (cnt != sizeof(uarea))
- errx(1, "read user structure: %s",
- cnt > 0 ? strerror(EIO) : strerror(errno));
-
- /*
- * Fill in the eproc vm parameters, since these are garbage unless
- * the kernel is dumping core or something.
- */
- uarea.user.u_kproc = *ki;
-
- /* Dump user area */
- cnt = write(fd, &uarea, sizeof(uarea));
- if (cnt != sizeof(uarea))
- errx(1, "write user structure: %s",
- cnt > 0 ? strerror(EIO) : strerror(errno));
-
- /* Dump data segment */
- datadump(efd, fd, p, USRTEXT + ctob(tsize), dsize);
-
- /* Dump stack segment */
- userdump(fd, p, USRSTACK - ctob(ssize), ssize);
-
- /* Dump machine dependent portions of the core. */
- md_core(kd, fd, ki);
-}
-
-void
-datadump(efd, fd, p, addr, npage)
- register int efd;
- register int fd;
- struct proc *p;
- register u_long addr;
- register int npage;
-{
- register int cc, delta;
- char buffer[PAGE_SIZE];
-
- delta = data_offset - addr;
- while (--npage >= 0) {
- cc = kvm_uread(kd, p, addr, buffer, PAGE_SIZE);
- if (cc != PAGE_SIZE) {
- /* Try to read the page from the executable. */
- if (lseek(efd, (off_t)addr + delta, SEEK_SET) == -1)
- err(1, "seek executable: %s", strerror(errno));
- cc = read(efd, buffer, sizeof(buffer));
- if (cc != sizeof(buffer)) {
- if (cc < 0)
- err(1, "read executable");
- else /* Assume untouched bss page. */
- bzero(buffer, sizeof(buffer));
- }
- }
- cc = write(fd, buffer, PAGE_SIZE);
- if (cc != PAGE_SIZE)
- errx(1, "write data segment: %s",
- cc > 0 ? strerror(EIO) : strerror(errno));
- addr += PAGE_SIZE;
- }
-}
-
-static void
-killed(sig)
- int sig;
-{
- restart_target();
- signal(sig, SIG_DFL);
- kill(getpid(), sig);
-}
-
-static void
-restart_target()
-{
- kill(pid, SIGCONT);
-}
-
-void
-userdump(fd, p, addr, npage)
- register int fd;
- struct proc *p;
- register u_long addr;
- register int npage;
-{
- register int cc;
- char buffer[PAGE_SIZE];
-
- while (--npage >= 0) {
- cc = kvm_uread(kd, p, addr, buffer, PAGE_SIZE);
- if (cc != PAGE_SIZE)
- /* Could be an untouched fill-with-zero page. */
- bzero(buffer, PAGE_SIZE);
- cc = write(fd, buffer, PAGE_SIZE);
- if (cc != PAGE_SIZE)
- errx(1, "write stack segment: %s",
- cc > 0 ? strerror(EIO) : strerror(errno));
- addr += PAGE_SIZE;
- }
-}
-
-void
-usage()
-{
- (void)fprintf(stderr, "usage: gcore [-s] [-c core] executable pid\n");
- exit(1);
-}