[coreboot] New patch to review: e869861 Utility for generating an Artecboot image
Patrick Georgi (patrick@georgi-clan.de)
gerrit at coreboot.org
Sat Sep 3 13:35:39 CEST 2011
Patrick Georgi (patrick at georgi-clan.de) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/182
-gerrit
commit e8698619be9024fef2babeaccebd7a7a65ce3f2f
Author: Nathan Williams <nathan at traverse.com.au>
Date: Mon Apr 4 01:36:13 2011 +0200
Utility for generating an Artecboot image
This program outputs a binary file with artecboot header and
Linux kernel that can be used with the FILO Artecboot loader.
Change-Id: I855845fffae57472d027e20a8db25b19f106a488
Signed-off-by: Nathan Williams <nathan at traverse.com.au>
Signed-off-by: Patrick Georgi <patrick at georgi-clan.de>
---
util/artecimage.c | 200 +++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 200 insertions(+), 0 deletions(-)
diff --git a/util/artecimage.c b/util/artecimage.c
new file mode 100644
index 0000000..ee282cc
--- /dev/null
+++ b/util/artecimage.c
@@ -0,0 +1,200 @@
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#define PROG_NAME "artecimage"
+#define VERSION "1.1"
+
+#define BUFSIZE 512
+
+// Artecboot header, gives information to loader
+
+#define ARTECBOOT_HEADER_MAGIC 0x10ADFACE
+#define CURRENT_VERSION 0x0102
+
+#define OS_UNKNOWN 0x00
+#define OS_LINUX 0x01
+#define OS_WINCE 0x02
+
+#define FLAG_INITRD 0x0001 // if set, the loader will provide initrd to kernel
+#define FLAG_FILESYSTEM 0x0002 // if set, the loader will use specified file names
+#define FLAG_CMDLINE 0x0004 // if set, the loader will pass the new command line
+
+#define ABOOT_FILE_KERNEL "/kernel"
+#define ABOOT_FILE_INITRD "/initrd"
+#define ABOOT_FILE_HEADER "/header"
+
+#define DEV_SECTOR_SIZE 512
+#define DEV_SECTOR_BITS 9
+
+typedef struct __attribute__ ((packed))
+{
+ unsigned long magicHeader;
+ unsigned short bootVersion;
+ unsigned short headerSize; // also kernel image start
+ unsigned long imageSize; // NB! since 1.02 is the total image/partition size
+ unsigned long bitFlags;
+ unsigned short osType;
+ char cmdLine[256];
+ unsigned long kernelStart; // used with Artecboot VFS / NULLFS
+ unsigned long kernelSize; // used with Artecboot VFS / NULLFS
+ unsigned long initrdStart; // used with Artecboot VFS / NULLFS
+ unsigned long initrdSize; // used with Artecboot VFS / NULLFS
+ char kernelFile[100]; // valid only with FLAG_FILESYSTEM
+ char initrdFile[100]; // valid only with FLAG_FILESYSTEM
+
+} ARTECBOOT_HEADER;
+
+void usage(void);
+
+int main(int argc, char **argv){
+ ARTECBOOT_HEADER bootHdr;
+ FILE *BINFILE = 0;
+ FILE *KERNFILE = 0;
+ FILE *INITRDFILE = 0;
+ char buf[BUFSIZE];
+ int c;
+ int i;
+ int verbose = 0;
+
+ /* clear header */
+ memset(&bootHdr, 0, sizeof(ARTECBOOT_HEADER));
+
+ while ((c = getopt(argc, argv, "c:hi:k:o:v")) != -1) {
+ switch(c) {
+ case 'c':
+ if (strlen(optarg) < sizeof(bootHdr.cmdLine)) {
+ strcpy(bootHdr.cmdLine, optarg);
+ bootHdr.bitFlags |= FLAG_CMDLINE;
+ } else {
+ usage();
+ printf("\nCommand line exceeds %d char limit\n", (sizeof(bootHdr.cmdLine) - 1));
+ return 1;
+ }
+ break;
+ case 'h':
+ usage();
+ return 0;
+ break;
+ case 'i':
+ INITRDFILE = fopen(optarg,"r");
+ if(INITRDFILE == NULL){
+ usage();
+ printf("\nError: Failed to open file '%s'\n\n", optarg);
+ return 1;
+ }
+ break;
+ case 'k':
+ KERNFILE = fopen(optarg,"r");
+ if(KERNFILE == NULL){
+ usage();
+ printf("\nError: Failed to open file '%s'\n\n", optarg);
+ return 1;
+ }
+ break;
+ case 'o':
+ BINFILE = fopen(optarg,"w");
+ if(BINFILE == NULL){
+ usage();
+ printf("\nError: Failed to open file '%s'\n\n", optarg);
+ return 1;
+ }
+ break;
+ case 'v':
+ verbose = 1;
+ break;
+ }
+ }
+ if(!BINFILE){
+ usage();
+ printf("\nError: No output file specified\n\n");
+ return 1;
+ }
+
+ if(!KERNFILE){
+ usage();
+ printf("\nError: No kernel image specified\n\n");
+ return 1;
+ }
+
+ bootHdr.magicHeader = ARTECBOOT_HEADER_MAGIC;
+ bootHdr.bootVersion = CURRENT_VERSION;
+ bootHdr.headerSize = sizeof(ARTECBOOT_HEADER);
+
+ /* Get kernel image size */
+ fseek(KERNFILE, 0L, SEEK_END);
+ bootHdr.imageSize = ftell(KERNFILE);
+
+ bootHdr.kernelSize = bootHdr.imageSize;
+ bootHdr.kernelStart = DEV_SECTOR_SIZE;
+
+ bootHdr.osType = OS_LINUX;
+
+ if(INITRDFILE){
+ /* Get initrd image size */
+ fseek(INITRDFILE, 0L, SEEK_END);
+ bootHdr.initrdSize = ftell(INITRDFILE);
+
+ /* Set INITRD flag */
+ bootHdr.bitFlags |= FLAG_INITRD;
+
+ /* Calculate start address (512 boundary) */
+ bootHdr.initrdStart = (bootHdr.kernelStart + bootHdr.imageSize);
+ bootHdr.initrdStart = (bootHdr.initrdStart >> DEV_SECTOR_BITS) + 1;
+ bootHdr.initrdStart <<= DEV_SECTOR_BITS;
+ }
+
+ fwrite(&bootHdr, 1, sizeof(ARTECBOOT_HEADER), BINFILE);
+ fseek(BINFILE, bootHdr.kernelStart, SEEK_SET);
+
+ /* Copy kernel into output file */
+ fseek(KERNFILE, 0, SEEK_SET);
+ while((i = fread(&buf, 1, BUFSIZE, KERNFILE)) != 0){
+ fwrite(&buf, 1, i, BINFILE);
+ }
+ fclose(KERNFILE);
+
+ if(INITRDFILE){
+ fseek(BINFILE, bootHdr.initrdStart, SEEK_SET);
+
+ /* Copy initrd into output file */
+ fseek(INITRDFILE, 0, SEEK_SET);
+ while((i = fread(&buf, 1, BUFSIZE, INITRDFILE)) != 0){
+ fwrite(&buf, 1, i, BINFILE);
+ }
+ fclose(INITRDFILE);
+ }
+
+ fclose(BINFILE);
+
+ if(verbose){
+ printf("magicHeader: 0x%04lx\n", bootHdr.magicHeader);
+ printf("bootVersion: 0x%04x\n", bootHdr.bootVersion);
+ printf("headerSize: 0x%08x\n", bootHdr.headerSize);
+ printf("imageSize: 0x%08lx\n", bootHdr.imageSize);
+ printf("bitFlags: 0x%08lx\n", bootHdr.bitFlags);
+ printf("osType: 0x%04x\n", bootHdr.osType);
+ printf("cmdLine: %s\n", bootHdr.cmdLine);
+ printf("kernelStart: 0x%08lx\n", bootHdr.kernelStart);
+ printf("kernelSize: 0x%08lx\n", bootHdr.imageSize);
+ printf("initrdStart: 0x%08lx\n", bootHdr.initrdStart);
+ printf("initrdSize: 0x%08lx\n", bootHdr.initrdSize);
+ printf("kernelFile: %s\n", bootHdr.kernelFile);
+ printf("initrdFile: %s\n", bootHdr.initrdFile);
+ }
+ return 0;
+}
+
+void usage(void) {
+ printf(PROG_NAME " v" VERSION "\n"
+ "Usage: " PROG_NAME " [-hv] [-c cmdline] [-i initrd] -k kernel -o outfile\n\n"
+ "Options:\n"
+ " -c cmdline Kernel command line (max 255 chars).\n"
+ " -h Display this help.\n"
+ " -i initrd initrd filename.\n"
+ " -k kernel Linux kernel filename.\n"
+ " -o outfile Write image to outfile.\n"
+ " -v Verbose.\n"
+ );
+ return;
+}
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