diff options
author | Marty Connor <mdc@etherboot.org> | 2010-01-16 21:47:39 -0500 |
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committer | Marty Connor <mdc@etherboot.org> | 2010-01-16 21:47:39 -0500 |
commit | 330abebddf67ab27998f64070f27d5874cbc7b06 (patch) | |
tree | 08f5954725930ee9c38b0afab4cb9a30c71ce7e3 /contrib/rom-scan/rom-scan.c | |
parent | 37883e99fd791571c6771c9d1d8721a11e7e8a8f (diff) | |
download | ipxe-330abebddf67ab27998f64070f27d5874cbc7b06.tar.gz |
[contrib] Move most contrib content to a separate repository
Most of the content that was previously in this directory has been
moved to a separate git repository:
http://git.etherboot.org/?p=contrib.git;a=summary
or the Etherboot Project wiki:
http://etherboot.org/
Diffstat (limited to 'contrib/rom-scan/rom-scan.c')
-rw-r--r-- | contrib/rom-scan/rom-scan.c | 115 |
1 files changed, 0 insertions, 115 deletions
diff --git a/contrib/rom-scan/rom-scan.c b/contrib/rom-scan/rom-scan.c deleted file mode 100644 index c5e48299..00000000 --- a/contrib/rom-scan/rom-scan.c +++ /dev/null @@ -1,115 +0,0 @@ -#include <fcntl.h> -#include <stdio.h> -#include <stdlib.h> -#include <errno.h> -#ifndef __TURBOC__ -#include <sys/mman.h> -#include <sys/stat.h> -#include <sys/types.h> -#include <unistd.h> -#endif - -#ifdef __TURBOC__ -#define HUGE huge -#else -#define HUGE -#endif - -#define ROMSTART 0xC8000 -#define ROMEND 0xE8000 -#define ROMINCREMENT 0x00800 -#define ROMMASK 0x03FFF - -#ifndef MAP_FAILED -#define MAP_FAILED ((void *)(long long)-1) -#endif - -typedef struct Images { - struct Images *next; - long start; - long size; -} Images; - -static void rom_scan(const unsigned char HUGE *rom,long offset,long len) -{ - static Images *images = NULL; - Images *ptr; -/* The assignments to dummy are to overcome a bug in TurboC */ - long dummy, size; - int chksum; - long i; - - if (rom[offset] != 0x55 || rom[dummy = offset+1] != 0xAA) - return; - size = (long)rom[dummy = offset+2]*512L; - printf("Found ROM header at %04lX:0000; " - "announces %ldk image (27C%02d EPROM)\n", - offset/16,(size+512)/1024, - size <= 1024 ? 8 : - size <= 2048 ? 16 : - size <= 4096 ? 32 : - size <= 8192 ? 64 : - size <= 16384 ? 128 : - size <= 32768 ? 256 : - size <= 65536 ? 512 : 11); - if (offset & ROMMASK) - printf(" This is a unusual position; not all BIOSs might find it.\n" - " Try to move to a 16kB boundary.\n"); - if (size > len) { - printf(" This image extends beyond %04X:0000. " - "It clashes with the system BIOS\n", - ROMEND/16); - size = len; } - for (chksum=0, i = size; i--; chksum += rom[dummy = offset+i]); - if (chksum % 256) - printf(" Checksum does not match. This image is not active\n"); - ptr = malloc(sizeof(Images)); - ptr->next = images; - ptr->start = offset; - ptr->size = size; - images = ptr; - for (ptr = ptr->next; ptr != NULL; ptr = ptr->next) { - for (i = 0; i < size && i < ptr->size; i++) - if (rom[dummy = ptr->start+i] != rom[dummy = offset+i]) - break; - if (i > 32) { - printf(" Image is identical with image at %04lX:0000 " - "for the first %ld bytes\n", - ptr->start/16,i); - if (i >= 1024) - if (i == size) - printf(" this means that you misconfigured the EPROM size!\n"); - else - printf(" this could suggest that you misconfigured the " - "EPROM size\n"); - else - printf(" this is probably harmless. Just ignore it...\n"); } } - return; -} - -int main(void) -{ - long i; - unsigned char HUGE *rom; - -#ifndef __TURBOC__ - int fh; - if ((fh = open("/dev/kmem",O_RDONLY|O_SYNC)) < 0) { - fprintf(stderr,"Could not open \"/dev/kmem\": %s\n",0 );//strerror(errno)); - return(1); } - if ((rom = mmap(NULL,ROMEND-ROMSTART,PROT_READ,MAP_SHARED,fh, - ROMSTART)) == MAP_FAILED) { - fprintf(stderr,"Could not mmap \"/dev/kmem\": %s\n",0); //strerror(errno)); - close(fh); - return(1); } - close(fh); -#endif - for (i = ROMEND; (i -= ROMINCREMENT) >= ROMSTART; ) -#ifdef __TURBOC__ - rom_scan(0,i,ROMEND-i); -#else - rom_scan(rom-ROMSTART,i,ROMEND-i); - munmap(rom,ROMEND-ROMSTART); -#endif - return(0); -} |