summaryrefslogtreecommitdiff
path: root/util/cbfstool/resize.c
diff options
context:
space:
mode:
authorPatrick Georgi <patrick.georgi@coresystems.de>2009-09-14 13:29:27 +0000
committerPatrick Georgi <patrick.georgi@coresystems.de>2009-09-14 13:29:27 +0000
commitb7b56dd8fbe123958e196f396dab5ff3000b68dd (patch)
tree19972cda7bd87504eeea26ed90535e4aa7585da4 /util/cbfstool/resize.c
parentc8d4a05f8f5df06bd98f8ee7d5ef46e61986e6b0 (diff)
downloadcoreboot-b7b56dd8fbe123958e196f396dab5ff3000b68dd.tar.xz
New cbfstool. Works without mmap or fork/exec and
supports fixed location files. Some parts are salvaged from the pre-commit version (esp. stage and payload creation), others are completely rewritten (eg. the main loop that handles file addition) Also adapt newconfig (we don't need cbfs/tools anymore) and fix some minor issues in the cbfstool-README. Signed-off-by: Patrick Georgi <patrick.georgi@coresystems.de> Acked-by: Stefan Reinauer <stepan@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4630 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'util/cbfstool/resize.c')
-rw-r--r--util/cbfstool/resize.c168
1 files changed, 0 insertions, 168 deletions
diff --git a/util/cbfstool/resize.c b/util/cbfstool/resize.c
deleted file mode 100644
index ef3267f392..0000000000
--- a/util/cbfstool/resize.c
+++ /dev/null
@@ -1,168 +0,0 @@
-/*
- * cbfstool
- *
- * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
- */
-
-#include <ctype.h>
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <sys/mman.h>
-
-#include "cbfstool.h"
-
-void resize_usage(void)
-{
- printf("resize [SIZE] [ERASEBLOCK]\tResize the ROM\n");
-}
-
-int resize_handler(struct rom *rom, int argc, char **argv)
-{
- unsigned int align, offset;
- int size;
- char null = '\0';
- int bootblocksize = ntohl(rom->header->bootblocksize);
-
- if (argc < 1) {
- resize_usage();
- return -1;
- }
-
- if (rom->fd <= 0) {
- ERROR("ROM file %s does not exist\n", rom->name);
- return -1;
- }
-
- align = ntohl(rom->header->align);
- size = get_size(argv[0]);
-
- if (argc >= 2)
- align = strtoul(argv[1], NULL, 0);
-
- if (size == rom->size && align == ntohl(rom->header->align)) {
- ERROR("New parameters are the same as the old\n");
- return 0;
- }
-
- if (size < bootblocksize) {
- ERROR("The new size is smaller then the bootblock size\n");
- return -1;
- }
-
- /* if the current ROM is too big for the new size, then complain */
-
- if (rom_used_space(rom) > size - bootblocksize) {
- ERROR("The new size is too small for the current ROM\n");
- return -1;
- }
-
- /* Grow the rom if we need to */
-
- if (size > rom->size) {
- munmap(rom->ptr, rom->size);
-
- lseek(rom->fd, size - 1, SEEK_SET);
- write(rom->fd, &null, 1);
-
- rom->ptr = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED,
- rom->fd, 0);
-
- if (rom->ptr == MAP_FAILED) {
- ERROR("Unable to grow the ROM\n");
- return -1;
- }
- }
-
- /* We only have to rewrite the entries if the alignment changed */
-
- if (align != ntohl(rom->header->align)) {
- struct cbfs_file *c;
-
- /* The first entry doesn't have to move */
-
- c = rom_find(rom, rom->header->offset);
-
- while (c) {
- struct cbfs_file *n = rom_find_next(rom, c);
- unsigned int next;
-
- if (n == NULL)
- break;
-
- /* Calculate a new location for the entry */
- next = ROM_OFFSET(rom, c) +
- ALIGN(ntohl(c->offset) + ntohl(c->len), align);
-
- /* Copy the next entry there */
- memmove(ROM_PTR(rom, next), n,
- ntohl(n->offset) + ntohl(n->len));
-
- c = (struct cbfs_file *)ROM_PTR(rom, next);
-
- /* If the previous header wasn't overwritten by
- * the change, corrupt the header so we don't
- * accidently find it
- */
-
- if (ROM_OFFSET(rom, n) >
- next + ntohl(c->len) + ntohl(c->offset))
- memset(n->magic, 0, sizeof(n->magic));
- }
- }
-
- /* Copy the bootblock */
-
- memmove(rom->ptr + size - bootblocksize,
- rom->ptr + rom->size - bootblocksize, bootblocksize);
-
- /* Recacluate the location of the header */
-
- offset = ROM_READL(rom, size - 12);
-
- rom->header = (struct cbfs_header *)
- ROM_PTR(rom, size - (0xFFFFFFFF - offset) - 1);
-
- /* Put the new values in the header */
- rom->header->romsize = htonl(size);
- rom->header->align = htonl(align);
-
- /* Truncate the file if we have to */
-
- if (size < rom->size) {
- munmap(rom->ptr, rom->size);
-
- rom->ptr = NULL;
-
- if (ftruncate(rom->fd, size)) {
- ERROR("Unable to truncate the ROM\n");
- return -1;
- }
-
- rom->ptr = mmap(0, size, PROT_READ | PROT_WRITE, MAP_SHARED,
- rom->fd, 0);
-
- if (rom->ptr == MAP_FAILED) {
- ERROR("Unable to truncate the ROM\n");
- return -1;
- }
- }
-
- rom->size = size;
- rom->fssize = size - bootblocksize;
-
- return 0;
-}