From: Nishanth Menon <nm@ti.com>
Date: Sat, 11 Dec 2010 23:18:45 +0000 (-0600)
Subject: X-Loader: Add SignGP support
X-Git-Tag: v1.5.0~52
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=095963f872da6f28e8b850a50ac3b1ddf7329684;p=pandora-x-loader.git

X-Loader: Add SignGP support

Integrate signGP from
http://beagleboard.googlecode.com/files/signGP.c

This will allow:
make ift to generate the ift file

Signed-off-by: Nishanth Menon <nm@ti.com>
---

diff --git a/Makefile b/Makefile
index 7a58ea0..3c08ec9 100644
--- a/Makefile
+++ b/Makefile
@@ -84,6 +84,11 @@ ALL = x-load.bin System.map
 
 all:		$(ALL)
 
+ift:	$(ALL) x-load.bin.ift
+
+x-load.bin.ift: signGP System.map x-load.bin
+	TEXT_BASE=`grep -w _start System.map|cut -d ' ' -f1`
+	./signGP x-load.bin $(TEXT_BASE)
  
 x-load.bin:	x-load
 		$(OBJCOPY) ${OBJCFLAGS} -O binary $< $@
@@ -106,6 +111,9 @@ System.map:	x-load
 oneboot:	x-load.bin
 		scripts/mkoneboot.sh
 
+signGP:		scripts/signGP.c
+		gcc -O3 -o signGP  $<
+
 #########################################################################
 else
 all install x-load x-load.srec oneboot depend dep:
@@ -177,7 +185,7 @@ clobber:	clean
 		| xargs rm -f
 	rm -f $(OBJS) *.bak tags TAGS
 	rm -fr *.*~
-	rm -f x-load x-load.map $(ALL) 
+	rm -f x-load x-load.map $(ALL) x-load.bin.ift signGP
 	rm -f include/asm/proc include/asm/arch
 
 mrproper \
diff --git a/scripts/signGP.c b/scripts/signGP.c
new file mode 100644
index 0000000..0e8ed07
--- /dev/null
+++ b/scripts/signGP.c
@@ -0,0 +1,73 @@
+//
+// signGP.c
+// Read the x-load.bin file and write out the x-load.bin.ift file.
+// The signed image is the original pre-pended with the size of the image
+// and the load address.  If not entered on command line, file name is
+// assumed to be x-load.bin in current directory and load address is
+// 0x40200800.
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <string.h>
+#include <malloc.h>
+
+
+main(int argc, char *argv[])
+{
+	int	i;
+	char	ifname[FILENAME_MAX], ofname[FILENAME_MAX], ch;
+	FILE	*ifile, *ofile;
+	unsigned long	loadaddr, len;
+	struct stat	sinfo;
+
+
+	// Default to x-load.bin and 0x40200800.
+	strcpy(ifname, "x-load.bin");
+	loadaddr = 0x40200800;
+
+	if ((argc == 2) || (argc == 3))
+		strcpy(ifname, argv[1]);
+
+	if (argc == 3)
+		loadaddr = strtol(argv[2], NULL, 16);
+
+	// Form the output file name.
+	strcpy(ofname, ifname);
+	strcat(ofname, ".ift");
+
+	// Open the input file.
+	ifile = fopen(ifname, "rb");
+	if (ifile == NULL) {
+		printf("Cannot open %s\n", ifname);
+		exit(0);
+	}
+
+	// Get file length.
+	stat(ifname, &sinfo);
+	len = sinfo.st_size;
+
+	// Open the output file and write it.
+	ofile = fopen(ofname, "wb");
+	if (ofile == NULL) {
+		printf("Cannot open %s\n", ofname);
+		fclose(ifile);
+		exit(0);
+	}
+
+	// Pad 1 sector of zeroes.
+	//ch = 0x00;
+	//for (i=0; i<0x200; i++)
+	//	fwrite(&ch, 1, 1, ofile);
+
+	fwrite(&len, 1, 4, ofile);
+	fwrite(&loadaddr, 1, 4, ofile);
+	for (i=0; i<len; i++) {
+		fread(&ch, 1, 1, ifile);
+		fwrite(&ch, 1, 1, ofile);
+	}
+
+	fclose(ifile);
+	fclose(ofile);
+}