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authorBill Richardson <wfrichar@chromium.org>2013-04-09 10:15:26 -0700
committerChromeBot <chrome-bot@google.com>2013-04-09 15:55:02 -0700
commit20807b6158b6a43baf0974bc763890888ba1f841 (patch)
tree3794ef628e125b86ead259cf1daf5f44b33d1f1b /utility
parent6db8c75021e2edfa400ae707a8544d041e3c415f (diff)
downloadvboot-20807b6158b6a43baf0974bc763890888ba1f841.tar.gz
Build dump_fmap into futility.
This stops creating dump_fmap as a standalone utility and builds it into futility. Since it was already invoked as a symlink, no user-visible changes should be observed. BUG=chromium:224734 BRANCH=none TEST=manual, trybots sudo FEATURES=test emerge vboot_reference FEATURES=test emerge-$BOARD vboot_reference Change-Id: I68d1bea0c1867043b2633e15509b95c2717009a7 Signed-off-by: Bill Richardson <wfrichar@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/47672 Reviewed-by: Randall Spangler <rspangler@chromium.org>
Diffstat (limited to 'utility')
-rw-r--r--utility/dump_fmap.c472
1 files changed, 0 insertions, 472 deletions
diff --git a/utility/dump_fmap.c b/utility/dump_fmap.c
deleted file mode 100644
index 28fd2f2d..00000000
--- a/utility/dump_fmap.c
+++ /dev/null
@@ -1,472 +0,0 @@
-/*
- * Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-#include <errno.h>
-#include <fcntl.h>
-#include <inttypes.h>
-#include <stdint.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "fmap.h"
-
-enum { FMT_NORMAL, FMT_PRETTY, FMT_FLASHROM, FMT_HUMAN };
-
-/* global variables */
-static int opt_extract = 0;
-static int opt_format = FMT_NORMAL;
-static int opt_overlap = 0;
-static char *progname;
-static void *base_of_rom;
-static int opt_gaps = 0;
-
-
-/* Return 0 if successful */
-static int dump_fmap(const void *ptr, int argc, char *argv[])
-{
- int i, retval = 0;
- char buf[80]; // DWR: magic number
- const FmapHeader *fmh = (const FmapHeader*)ptr;
- const FmapAreaHeader *ah = (const FmapAreaHeader*)(ptr + sizeof(FmapHeader));
-
- if (FMT_NORMAL == opt_format) {
- snprintf(buf, FMAP_SIGNATURE_SIZE+1, "%s", fmh->fmap_signature);
- printf("fmap_signature %s\n", buf);
- printf("fmap_version: %d.%d\n",
- fmh->fmap_ver_major, fmh->fmap_ver_minor);
- printf("fmap_base: 0x%" PRIx64 "\n", fmh->fmap_base);
- printf("fmap_size: 0x%08x (%d)\n", fmh->fmap_size, fmh->fmap_size);
- snprintf(buf, FMAP_NAMELEN+1, "%s", fmh->fmap_name);
- printf("fmap_name: %s\n", buf);
- printf("fmap_nareas: %d\n", fmh->fmap_nareas);
- }
-
- for (i = 0; i < fmh->fmap_nareas; i++, ah++) {
- snprintf(buf, FMAP_NAMELEN+1, "%s", ah->area_name);
-
- if (argc) {
- int j, found=0;
- for (j = 0; j < argc; j++)
- if (!strcmp(argv[j], buf)) {
- found = 1;
- break;
- }
- if (!found) {
- continue;
- }
- }
-
- switch (opt_format) {
- case FMT_PRETTY:
- printf("%s %d %d\n", buf, ah->area_offset, ah->area_size);
- break;
- case FMT_FLASHROM:
- if (ah->area_size)
- printf("0x%08x:0x%08x %s\n", ah->area_offset,
- ah->area_offset + ah->area_size - 1, buf);
- break;
- default:
- printf("area: %d\n", i+1);
- printf("area_offset: 0x%08x\n", ah->area_offset);
- printf("area_size: 0x%08x (%d)\n", ah->area_size, ah->area_size);
- printf("area_name: %s\n", buf);
- }
-
- if (opt_extract) {
- char *s;
- for (s = buf; *s; s++)
- if (*s == ' ')
- *s = '_';
- FILE *fp = fopen(buf,"wb");
- if (!fp) {
- fprintf(stderr, "%s: can't open %s: %s\n",
- progname, buf, strerror(errno));
- retval = 1;
- } else {
- if (ah->area_size &&
- 1 != fwrite(base_of_rom + ah->area_offset, ah->area_size, 1, fp)) {
- fprintf(stderr, "%s: can't write %s: %s\n",
- progname, buf, strerror(errno));
- retval = 1;
- } else {
- if (FMT_NORMAL == opt_format)
- printf("saved as \"%s\"\n", buf);
- }
- fclose(fp);
- }
- }
- }
-
- return retval;
-}
-
-
-/****************************************************************************/
-/* Stuff for human-readable form */
-
-typedef struct dup_s {
- char *name;
- struct dup_s *next;
-} dupe_t;
-
-typedef struct node_s {
- char *name;
- uint32_t start;
- uint32_t size;
- uint32_t end;
- struct node_s *parent;
- int num_children;
- struct node_s **child;
- dupe_t *alias;
-} node_t;
-
-static node_t *all_nodes;
-
-static void sort_nodes(int num, node_t *ary[])
-{
- int i, j;
- node_t *tmp;
-
- /* bubble-sort is quick enough with only a few entries */
- for (i = 0; i < num; i++) {
- for (j = i + 1; j < num; j++) {
- if (ary[j]->start > ary[i]->start) {
- tmp = ary[i];
- ary[i] = ary[j];
- ary[j] = tmp;
- }
- }
- }
-}
-
-
-static void line(int indent, char *name,
- uint32_t start, uint32_t end, uint32_t size, char *append)
-{
- int i;
- for (i = 0; i < indent; i++)
- printf(" ");
- printf("%-25s %08x %08x %08x%s\n", name, start, end, size,
- append ? append : "");
-}
-
-static int gapcount;
-static void empty(int indent, uint32_t start, uint32_t end, char *name)
-{
- char buf[80];
- if (opt_gaps) {
- sprintf(buf, " // gap in %s", name);
- line(indent + 1, "", start, end, end - start, buf);
- }
- gapcount++;
-}
-
-static void show(node_t *p, int indent, int show_first)
-{
- int i;
- dupe_t *alias;
- if (show_first) {
- line(indent, p->name, p->start, p->end, p->size, 0);
- for (alias = p->alias; alias; alias = alias->next)
- line(indent, alias->name, p->start, p->end, p->size, " // DUPLICATE");
- }
- sort_nodes(p->num_children, p->child);
- for (i = 0; i < p->num_children; i++) {
- if (i == 0 && p->end != p->child[i]->end)
- empty(indent, p->child[i]->end, p->end, p->name);
- show(p->child[i], indent + show_first, 1);
- if (i < p->num_children - 1 && p->child[i]->start != p->child[i+1]->end)
- empty(indent, p->child[i+1]->end, p->child[i]->start, p->name);
- if (i == p->num_children - 1 && p->child[i]->start != p->start)
- empty(indent, p->start, p->child[i]->start, p->name);
- }
-}
-
-static int overlaps(int i, int j)
-{
- node_t *a = all_nodes + i;
- node_t *b = all_nodes + j;
-
- return ((a->start < b->start) && (b->start < a->end) &&
- (b->start < a->end) && (a->end < b->end));
-}
-
-static int encloses(int i, int j)
-{
- node_t *a = all_nodes + i;
- node_t *b = all_nodes + j;
-
- return ((a->start <= b->start) &&
- (a->end >= b->end));
-}
-
-static int duplicates(int i, int j)
-{
- node_t *a = all_nodes + i;
- node_t *b = all_nodes + j;
-
- return ((a->start == b->start) &&
- (a->end == b->end));
-}
-
-static void add_dupe(int i, int j, int numnodes)
-{
- int k;
- dupe_t *alias;
-
- alias = (dupe_t *)malloc(sizeof(dupe_t));
- alias->name = all_nodes[j].name;
- alias->next = all_nodes[i].alias;
- all_nodes[i].alias = alias;
- for (k = j; k < numnodes; k++ )
- all_nodes[k] = all_nodes[k + 1];
-}
-
-static void add_child(node_t *p, int n)
-{
- int i;
- if (p->num_children && !p->child) {
- p->child = (struct node_s **)calloc(p->num_children, sizeof(node_t *));
- if (!p->child) {
- perror("calloc failed");
- exit(1);
- }
- }
- for (i = 0; i < p->num_children; i++)
- if (!p->child[i]) {
- p->child[i] = all_nodes + n;
- return;
- }
-}
-
-static int human_fmap(void *p)
-{
- FmapHeader *fmh;
- FmapAreaHeader *ah;
- int i, j, errorcnt=0;
- int numnodes;
-
- fmh = (FmapHeader *)p;
- ah = (FmapAreaHeader *)(fmh + 1);
-
- /* The challenge here is to generate a directed graph from the
- * arbitrarily-ordered FMAP entries, and then to prune it until it's as
- * simple (and deep) as possible. Overlapping regions are not allowed.
- * Duplicate regions are okay, but may require special handling. */
-
- /* Convert the FMAP info into our format. */
- numnodes = fmh->fmap_nareas;
-
- /* plus one for the all-enclosing "root" */
- all_nodes = (node_t *)calloc(numnodes+1, sizeof(node_t));
- if (!all_nodes) {
- perror("calloc failed");
- exit(1);
- }
- for (i = 0; i < numnodes; i++) {
- char buf[FMAP_NAMELEN+1];
- strncpy(buf, ah[i].area_name, FMAP_NAMELEN);
- buf[FMAP_NAMELEN] = '\0';
- if (!(all_nodes[i].name = strdup(buf))) {
- perror("strdup failed");
- exit(1);
- }
- all_nodes[i].start = ah[i].area_offset;
- all_nodes[i].size = ah[i].area_size;
- all_nodes[i].end = ah[i].area_offset + ah[i].area_size;
- }
- /* Now add the root node */
- all_nodes[numnodes].name = strdup("-entire flash-");
- all_nodes[numnodes].start = fmh->fmap_base;
- all_nodes[numnodes].size = fmh->fmap_size;
- all_nodes[numnodes].end = fmh->fmap_base + fmh->fmap_size;
-
-
- /* First, coalesce any duplicates */
- for (i = 0; i < numnodes; i++) {
- for (j = i + 1; j < numnodes; j++) {
- if (duplicates(i, j)) {
- add_dupe(i, j, numnodes);
- numnodes--;
- }
- }
- }
-
- /* Each node should have at most one parent, which is the smallest enclosing
- * node. Duplicate nodes "enclose" each other, but if there's already a
- * relationship in one direction, we won't create another. */
- for (i = 0; i < numnodes; i++) {
- /* Find the smallest parent, which might be the root node. */
- int k = numnodes;
- for (j = 0; j < numnodes; j++) { /* full O(N^2), not triangular */
- if (i == j)
- continue;
- if (overlaps(i, j)) {
- printf("ERROR: %s and %s overlap\n",
- all_nodes[i].name, all_nodes[j].name);
- printf(" %s: 0x%x - 0x%x\n", all_nodes[i].name,
- all_nodes[i].start, all_nodes[i].end);
- printf(" %s: 0x%x - 0x%x\n", all_nodes[j].name,
- all_nodes[j].start, all_nodes[j].end);
- if (opt_overlap < 2) {
- printf("Use more -h args to ignore this error\n");
- errorcnt++;
- }
- continue;
- }
- if (encloses(j, i) && all_nodes[j].size < all_nodes[k].size)
- k = j;
- }
- all_nodes[i].parent = all_nodes + k;
- }
- if (errorcnt)
- return 1;
-
- /* Force those deadbeat parents to recognize their children */
- for (i = 0; i < numnodes; i++) /* how many */
- if (all_nodes[i].parent)
- all_nodes[i].parent->num_children++;
- for (i = 0; i < numnodes; i++) /* here they are */
- if (all_nodes[i].parent)
- add_child(all_nodes[i].parent, i);
-
- /* Ready to go */
- printf("# name start end size\n");
- show(all_nodes + numnodes, 0, opt_gaps);
-
- if (gapcount && !opt_gaps)
- printf("\nWARNING: unused regions found. Use -H to see them\n");
-
- return 0;
-}
-
-/* End of human-reable stuff */
-/****************************************************************************/
-
-int main(int argc, char *argv[])
-{
- int c;
- int errorcnt = 0;
- struct stat sb;
- int fd;
- const char *fmap;
- int retval = 1;
-
- progname = strrchr(argv[0], '/');
- if (progname)
- progname++;
- else
- progname = argv[0];
-
- opterr = 0; /* quiet, you */
- while ((c = getopt(argc, argv, ":xpfhH")) != -1) {
- switch (c) {
- case 'x':
- opt_extract = 1;
- break;
- case 'p':
- opt_format = FMT_PRETTY;
- break;
- case 'f':
- opt_format = FMT_FLASHROM;
- break;
- case 'H':
- opt_gaps = 1;
- /* fallthrough */
- case 'h':
- opt_format = FMT_HUMAN;
- opt_overlap++;
- break;
- case '?':
- fprintf(stderr, "%s: unrecognized switch: -%c\n",
- progname, optopt);
- errorcnt++;
- break;
- case ':':
- fprintf(stderr, "%s: missing argument to -%c\n",
- progname, optopt);
- errorcnt++;
- break;
- default:
- errorcnt++;
- break;
- }
- }
-
- if (errorcnt || optind >= argc) {
- fprintf(stderr,
- "\nUsage: %s [-x] [-p|-f|-h] FLASHIMAGE [NAME...]\n\n"
- "Display (and extract with -x) the FMAP components from a BIOS image.\n"
- "The -p option makes the output easier to parse by scripts.\n"
- "The -f option emits the FMAP in the format used by flashrom.\n"
- "\n"
- "Specify one or more NAMEs to only print sections that exactly match.\n"
- "\n"
- "The -h option shows the whole FMAP in human-readable form.\n"
- " Use -H to also display any gaps.\n"
- "\n",
- progname);
- return 1;
- }
-
- if (0 != stat(argv[optind], &sb)) {
- fprintf(stderr, "%s: can't stat %s: %s\n",
- progname,
- argv[optind],
- strerror(errno));
- return 1;
- }
-
- fd = open(argv[optind], O_RDONLY);
- if (fd < 0) {
- fprintf(stderr, "%s: can't open %s: %s\n",
- progname,
- argv[optind],
- strerror(errno));
- return 1;
- }
- if (FMT_NORMAL == opt_format)
- printf("opened %s\n", argv[optind]);
-
- base_of_rom = mmap(0, sb.st_size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
- if (base_of_rom == (char*)-1) {
- fprintf(stderr, "%s: can't mmap %s: %s\n",
- progname,
- argv[optind],
- strerror(errno));
- close(fd);
- return 1;
- }
- close(fd); /* done with this now */
-
- fmap = FmapFind((char*) base_of_rom, sb.st_size);
- if (fmap) {
- switch (opt_format) {
- case FMT_HUMAN:
- retval = human_fmap((void *)fmap);
- break;
- case FMT_NORMAL:
- printf("hit at 0x%08x\n", (uint32_t) (fmap - (char*) base_of_rom));
- /* fallthrough */
- default:
- retval = dump_fmap(fmap, argc-optind-1, argv+optind+1);
- }
- }
-
- if (0 != munmap(base_of_rom, sb.st_size)) {
- fprintf(stderr, "%s: can't munmap %s: %s\n",
- progname,
- argv[optind],
- strerror(errno));
- return 1;
- }
-
- return retval;
-}