Fix broadcom squashfs images:

We switched over to appending the jffs2 eof mark to the squashfs images,
but since the squashfs is not always aligned to eraseblocksize, the eof
mark landed in the wrong place. This commit adds an extra flag to the
trx utility that can append extra data to a partition with alignment.
This is used to place the jffs2 eof mark at the right offset.

SVN-Revision: 7253

target/linux/brcm-2.4/image/Makefile

@@ -19,6 +19,9 @@ define Image/Prepare
 		TARGET="$(KDIR)" \
 		clean install
 	echo -ne "\\x00" >> $(KDIR)/loader.gz
+	rm -f $(KDIR)/fs_mark
+	touch $(KDIR)/fs_mark
+	$(call prepare_generic_squashfs,$(KDIR)/fs_mark)
 endef
 
 ifneq ($(KERNEL),2.4)
@@ -41,22 +44,17 @@ define Image/Build/USR
 endef
 
 define trxalign/jffs2-128k
--a 0x20000
+-a 0x20000 -f $(KDIR)/root.$(1)
 endef
 define trxalign/jffs2-64k
--a 0x10000
+-a 0x10000 -f $(KDIR)/root.$(1)
 endef
 define trxalign/squashfs
--a 1024
+-a 1024 -f $(KDIR)/root.$(1) -a 0x10000 -A $(KDIR)/fs_mark
-endef
-
-define Image/Build/squashfs
-    $(call prepare_generic_squashfs,$(KDIR)/root.squashfs)
 endef
 
 define Image/Build
-	$(call Image/Build/$(1))
+	$(STAGING_DIR)/bin/trx -o $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).trx -f $(KDIR)/loader.gz -f $(KDIR)/vmlinux.lzma $(call trxalign/$(1),$(1)) 
-	$(STAGING_DIR)/bin/trx -o $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).trx -f $(KDIR)/loader.gz -f $(KDIR)/vmlinux.lzma $(call trxalign/$(1)) -f $(KDIR)/root.$(1)
 ifneq ($(1),jffs2-128k)
 	$(call Image/Build/CyberTAN,$(1),wrt54g3g,W54F,2.01.1,$(patsubst jffs2-%,jffs2,$(1)))
 	$(call Image/Build/CyberTAN,$(1),wrt54g,W54G,4.60.1,$(patsubst jffs2-%,jffs2,$(1)))

tools/firmware-utils/src/trx.c

@@ -88,7 +88,7 @@ int main(int argc, char **argv)
 	char *ofn = NULL;
 	char *buf;
 	char *e;
-	int c, i;
+	int c, i, append;
 	size_t n;
 	uint32_t cur_len;
 	unsigned long maxlen = TRX_MAX_LEN;
@@ -110,11 +110,15 @@ int main(int argc, char **argv)
 	in = NULL;
 	i = 0;
 
-	while ((c = getopt(argc, argv, "-:o:m:a:b:f:")) != -1) {
+	while ((c = getopt(argc, argv, "-:o:m:a:b:f:A:")) != -1) {
 		switch (c) {
+			case 'A':
+				append = 1;
+				/* fall through */
 			case 'f':
 			case 1:
-				p->offsets[i++] = STORE32_LE(cur_len);
+				if (!append)
+					p->offsets[i++] = STORE32_LE(cur_len);
 
 				if (!(in = fopen(optarg, "r"))) {
 					fprintf(stderr, "can not open \"%s\" for reading\n", optarg);
@@ -134,6 +138,7 @@ int main(int argc, char **argv)
 					n += ROUND - (n & (ROUND-1));
 				}
 				cur_len += n;
+				append = 0;
 
 				break;
 			case 'o':