diff options
Diffstat (limited to 'sys/amd64')
| -rw-r--r-- | sys/amd64/amd64/dump_machdep.c | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/sys/amd64/amd64/dump_machdep.c b/sys/amd64/amd64/dump_machdep.c new file mode 100644 index 0000000..b914af1 --- /dev/null +++ b/sys/amd64/amd64/dump_machdep.c @@ -0,0 +1,121 @@ +/*- + * Copyright (c) 2002 Poul-Henning Kamp + * Copyright (c) 2002 Networks Associates Technology, Inc. + * All rights reserved. + * + * This software was developed for the FreeBSD Project by Poul-Henning Kamp + * and NAI Labs, the Security Research Division of Network Associates, Inc. + * under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"), as part of the + * DARPA CHATS research program. + * + * 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. The names of the authors may not be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. + * + * $FreeBSD$ + */ + +#include <sys/param.h> +#include <sys/systm.h> +#include <sys/conf.h> +#include <sys/kernel.h> +#include <sys/kerneldump.h> +#include <vm/vm.h> +#include <vm/pmap.h> +#include <machine/md_var.h> + +static struct kerneldumpheader kdh; + +void +dumpsys(struct dumperinfo *di) +{ + off_t dumplo; + vm_offset_t a, addr; + u_int count, left, u; + void *va; + int i, mb; + + printf("Dumping %u MB\n", Maxmem / (1024*1024 / PAGE_SIZE)); + + if (sizeof kdh != 512) { + printf( + "Compiled struct kerneldumpheader is %d, not %d bytes\n", + sizeof kdh, 512); + return; + } + + /* Fill in the kernel dump header */ + strcpy(kdh.magic, KERNELDUMPMAGIC); + strcpy(kdh.architecture, "i386"); + kdh.version = KERNELDUMPVERSION; + kdh.architectureversion = KERNELDUMP_I386_VERSION; + kdh.dumplength = Maxmem * (off_t)PAGE_SIZE; + kdh.blocksize = di->blocksize; + kdh.dumptime = time_second; + strncpy(kdh.hostname, hostname, sizeof kdh.hostname); + strncpy(kdh.versionstring, version, sizeof kdh.versionstring); + if (panicstr != NULL) + strncpy(kdh.panicstring, panicstr, sizeof kdh.panicstring); + kdh.parity = kerneldump_parity(&kdh); + + dumplo = di->mediaoffset + di->mediasize - Maxmem * (off_t)PAGE_SIZE; + dumplo -= sizeof kdh * 2; + i = di->dumper(di->priv, &kdh, NULL, dumplo, sizeof kdh); + if (i) + printf("\nDump failed writing header (%d)\n", i); + dumplo += sizeof kdh; + i = 0; + addr = 0; + va = 0; + mb = 0; + for (count = 0; count < Maxmem;) { + left = Maxmem - count; + if (left > MAXDUMPPGS) + left = MAXDUMPPGS; + for (u = 0; u < left; u++) { + a = addr + u * PAGE_SIZE; + if (!is_physical_memory(a)) + a = 0; + va = pmap_kenter_temporary(trunc_page(a), u); + } + i = count / (16*1024*1024 / PAGE_SIZE); + if (i != mb) { + printf(" %d", count / (1024 * 1024 / PAGE_SIZE)); + mb = i; + } + i = di->dumper(di->priv, va, NULL, dumplo, left * PAGE_SIZE); + if (i) + break; + count += left; + dumplo += left * PAGE_SIZE; + addr += left * PAGE_SIZE; + } + if (i) + printf("\nDump failed writing data (%d)\n", i); + i = di->dumper(di->priv, &kdh, NULL, dumplo, sizeof kdh); + if (i) + printf("\nDump failed writing trailer (%d)\n", i); + di->dumper(di->priv, NULL, NULL, 0, 0); /* tell them we are done */ + printf("\nDump complete\n"); + return; +} |
