Patrick Georgi (patrick@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@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@traverse.com.au Signed-off-by: Patrick Georgi patrick@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; +}