| db_textdump.c (181803) | db_textdump.c (183527) |
|---|---|
| 1/*- 2 * Copyright (c) 2007 Robert N. M. Watson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 43 unchanged lines hidden (view full) --- 52 * TODO 53 * ---- 54 * 55 * - Allow subsytems to register to submit files for inclusion in the text 56 * dump in a generic way. 57 */ 58 59#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2007 Robert N. M. Watson 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 43 unchanged lines hidden (view full) --- 52 * TODO 53 * ---- 54 * 55 * - Allow subsytems to register to submit files for inclusion in the text 56 * dump in a generic way. 57 */ 58 59#include <sys/cdefs.h> |
| 60__FBSDID("$FreeBSD: head/sys/ddb/db_textdump.c 181803 2008-08-17 23:27:27Z bz $"); | 60__FBSDID("$FreeBSD: head/sys/ddb/db_textdump.c 183527 2008-10-01 22:08:53Z peter $"); |
| 61 62#include "opt_config.h" 63 64#include <sys/param.h> 65#include <sys/conf.h> 66#include <sys/kernel.h> 67#include <sys/kerneldump.h> 68#include <sys/msgbuf.h> --- 103 unchanged lines hidden (view full) --- 172 173/* 174 * Statically allocate space to prepare block-sized headers and data. 175 */ 176char textdump_block_buffer[TEXTDUMP_BLOCKSIZE]; 177static struct kerneldumpheader kdh; 178 179/* | 61 62#include "opt_config.h" 63 64#include <sys/param.h> 65#include <sys/conf.h> 66#include <sys/kernel.h> 67#include <sys/kerneldump.h> 68#include <sys/msgbuf.h> --- 103 unchanged lines hidden (view full) --- 172 173/* 174 * Statically allocate space to prepare block-sized headers and data. 175 */ 176char textdump_block_buffer[TEXTDUMP_BLOCKSIZE]; 177static struct kerneldumpheader kdh; 178 179/* |
| 180 * Text dumps are prefixed with a normal kernel dump header but with a 181 * different magic number to allow them to be uniquely identified. 182 */ 183static void 184mkdumpheader(struct kerneldumpheader *kdh, uint32_t archver, 185 uint64_t dumplen, uint32_t blksz) 186{ 187 188 bzero(kdh, sizeof(*kdh)); 189 strncpy(kdh->magic, TEXTDUMPMAGIC, sizeof(kdh->magic)); 190 strncpy(kdh->architecture, MACHINE_ARCH, sizeof(kdh->architecture)); 191 kdh->version = htod32(KERNELDUMPVERSION); 192 kdh->architectureversion = htod32(archver); 193 kdh->dumplength = htod64(dumplen); 194 kdh->dumptime = htod64(time_second); 195 kdh->blocksize = htod32(blksz); 196 strncpy(kdh->hostname, G_hostname, sizeof(kdh->hostname)); 197 strncpy(kdh->versionstring, version, sizeof(kdh->versionstring)); 198 if (panicstr != NULL) 199 strncpy(kdh->panicstring, panicstr, sizeof(kdh->panicstring)); 200 kdh->parity = kerneldump_parity(kdh); 201} 202 203/* | |
| 204 * Calculate and fill in the checksum for a ustar header. 205 */ 206static void 207ustar_checksum(struct ustar_header *uhp) 208{ 209 u_int sum; 210 int i; 211 --- 251 unchanged lines hidden (view full) --- 463 /* 464 * Position the start of the dump so that we'll write the kernel dump 465 * trailer immediately before the end of the partition, and then work 466 * our way back. We will rewrite this header later to reflect the 467 * true size if things go well. 468 */ 469 textdump_offset = di->mediasize - sizeof(kdh); 470 textdump_saveoff(&trailer_offset); | 180 * Calculate and fill in the checksum for a ustar header. 181 */ 182static void 183ustar_checksum(struct ustar_header *uhp) 184{ 185 u_int sum; 186 int i; 187 --- 251 unchanged lines hidden (view full) --- 439 /* 440 * Position the start of the dump so that we'll write the kernel dump 441 * trailer immediately before the end of the partition, and then work 442 * our way back. We will rewrite this header later to reflect the 443 * true size if things go well. 444 */ 445 textdump_offset = di->mediasize - sizeof(kdh); 446 textdump_saveoff(&trailer_offset); |
| 471 mkdumpheader(&kdh, KERNELDUMP_TEXT_VERSION, 0, TEXTDUMP_BLOCKSIZE); | 447 mkdumpheader(&kdh, TEXTDUMPMAGIC, KERNELDUMP_TEXT_VERSION, 0, TEXTDUMP_BLOCKSIZE); |
| 472 (void)textdump_writenextblock(di, (char *)&kdh); 473 474 /* 475 * Write a series of files in ustar format. 476 */ 477 if (textdump_do_ddb) 478 db_capture_dump(di); 479#ifdef INCLUDE_CONFIG_FILE --- 8 unchanged lines hidden (view full) --- 488 textdump_dump_version(di); 489 490 /* 491 * Now that we know the true size, we can write out the header, then 492 * seek back to the end and rewrite the trailer with the correct 493 * size. 494 */ 495 dumplen = trailer_offset - (textdump_offset + TEXTDUMP_BLOCKSIZE); | 448 (void)textdump_writenextblock(di, (char *)&kdh); 449 450 /* 451 * Write a series of files in ustar format. 452 */ 453 if (textdump_do_ddb) 454 db_capture_dump(di); 455#ifdef INCLUDE_CONFIG_FILE --- 8 unchanged lines hidden (view full) --- 464 textdump_dump_version(di); 465 466 /* 467 * Now that we know the true size, we can write out the header, then 468 * seek back to the end and rewrite the trailer with the correct 469 * size. 470 */ 471 dumplen = trailer_offset - (textdump_offset + TEXTDUMP_BLOCKSIZE); |
| 496 mkdumpheader(&kdh, KERNELDUMP_TEXT_VERSION, dumplen, | 472 mkdumpheader(&kdh, TEXTDUMPMAGIC, KERNELDUMP_TEXT_VERSION, dumplen, |
| 497 TEXTDUMP_BLOCKSIZE); 498 (void)textdump_writenextblock(di, (char *)&kdh); 499 textdump_restoreoff(trailer_offset); 500 (void)textdump_writenextblock(di, (char *)&kdh); 501 502 /* 503 * Terminate the dump, report any errors, and clear the pending flag. 504 */ --- 54 unchanged lines hidden --- | 473 TEXTDUMP_BLOCKSIZE); 474 (void)textdump_writenextblock(di, (char *)&kdh); 475 textdump_restoreoff(trailer_offset); 476 (void)textdump_writenextblock(di, (char *)&kdh); 477 478 /* 479 * Terminate the dump, report any errors, and clear the pending flag. 480 */ --- 54 unchanged lines hidden --- |