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authorStefan Reinauer <stepan@coresystems.de>2009-07-23 22:03:14 +0000
committerPatrick Georgi <patrick.georgi@coresystems.de>2009-07-23 22:03:14 +0000
commitf64893a94ffb2b7d79364736fc10aebe9bd9176e (patch)
tree67bf3d26a9b2a6a7e82eb704b4e0e028e80ea844 /util/cbfstool
parentaeb6c9870f0b1af8c0b55b2034f881da6757c4a4 (diff)
CBFS stuff:
- update, add, and improve comments - whitespace here and there - remove unused or write-only variables - improve debug output - only build payload.{nrv2b,lzma} for non-cbfs - improved error checking in cbfstool Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4466 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'util/cbfstool')
-rw-r--r--util/cbfstool/fs.c65
1 files changed, 64 insertions, 1 deletions
diff --git a/util/cbfstool/fs.c b/util/cbfstool/fs.c
index 1e4f06907a..611b8fc673 100644
--- a/util/cbfstool/fs.c
+++ b/util/cbfstool/fs.c
@@ -312,6 +312,29 @@ struct cbfs_file *rom_find_next(struct rom *rom, struct cbfs_file *prev)
ntohl(rom->header->align)));
}
+struct cbfs_file *rom_find_empty(struct rom *rom)
+{
+ unsigned int offset = ntohl(rom->header->offset);
+ unsigned int ret = ntohl(rom->header->offset);
+
+ while (offset < rom->fssize) {
+
+ struct cbfs_file *c =
+ (struct cbfs_file *)ROM_PTR(rom, offset);
+
+ if (!strcmp(c->magic, COMPONENT_MAGIC)) {
+ offset += ALIGN(ntohl(c->offset) + ntohl(c->len),
+ ntohl(rom->header->align));
+
+ ret = offset;
+ } else
+ offset += ntohl(rom->header->align);
+ }
+
+ return (ret < rom->fssize) ?
+ (struct cbfs_file *)ROM_PTR(rom, ret) : NULL;
+}
+
struct cbfs_file *rom_find_by_name(struct rom *rom, const char *name)
{
struct cbfs_file *c = rom_find_first(rom);
@@ -363,6 +386,24 @@ int rom_remove(struct rom *rom, const char *name)
c->type = CBFS_COMPONENT_DELETED;
+ void *n = rom_find_next(rom, c);
+ int clear;
+
+ if (n != NULL) {
+ memcpy(c, n, rom->fssize - ROM_OFFSET(rom, n));
+ clear = ROM_OFFSET(rom, n) - ROM_OFFSET(rom, c);
+ }
+ else { /* No component after this one. */
+ unsigned int csize;
+ csize = sizeof(struct cbfs_file) + ALIGN(strlen(name) + 1, 16);
+ clear = ntohl(c->len) + csize;
+ memcpy(c, ((void*)c) + clear,
+ rom->fssize - (ROM_OFFSET(rom, c)+clear));
+ }
+
+ /* Zero the new space, which is always at the end. */
+ memset(ROM_PTR(rom, rom->fssize - clear), 0, clear);
+
return 0;
}
@@ -394,6 +435,7 @@ int rom_extract(struct rom *rom, const char *name, void** buf, int *size )
int rom_add(struct rom *rom, const char *name, void *buffer, unsigned long address, int size, int type)
{
struct cbfs_file *c;
+ int csize;
if (rom_find_by_name(rom, name)) {
ERROR("Component %s already exists in this rom\n", name);
@@ -410,7 +452,28 @@ int rom_add(struct rom *rom, const char *name, void *buffer, unsigned long addre
return -1;
}
- memcpy(((unsigned char *)c) + ntohl(c->offset), buffer, size);
+ csize = sizeof(struct cbfs_file) + ALIGN(strlen(name) + 1, 16);
+
+ int offset = ROM_OFFSET(rom, c);
+
+ if (offset + csize + size > rom->fssize) {
+ ERROR("There is not enough room in this ROM for this\n");
+ ERROR("component. I need %d bytes, only have %d bytes avail\n",
+ csize + size, rom->fssize - offset);
+
+ return -1;
+ }
+
+ strcpy(c->magic, COMPONENT_MAGIC);
+
+ c->len = htonl(size);
+ c->offset = htonl(csize);
+ c->type = htonl(type);
+
+ memset(CBFS_NAME(c), 0, ALIGN(strlen(name) + 1, 16));
+ strcpy((char *)CBFS_NAME(c), name);
+
+ memcpy(((unsigned char *)c) + csize, buffer, size);
return 0;
}