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 (file)
--- 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 (file)
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);
+}