mkcygelfsyms.c

mips架构的bootloader,99左右的版本 但源代码现在没人更新了

/*************************************************************
 * File: tools/mkcygelfsyms.c
 * Purpose: Make S4 symbol records from a Cygnus-elf .map file.
 *	This program is intended for users who are invoking
 *	the cygnus tools directly, rather than using pmcc. 
 * Author: Phil Bunce ([e-mail])
 * Revision History:
 *	970826	Created
 */
#include <stdio.h>

int vflag;

/*************************************************************
*/
main(argc,argv)
int argc;
char *argv[];
{
if (argc != 3) {
	fprintf(stderr,"Make S4 symbol records from a Cygnus-elf .map file\n");
	fprintf(stderr,"usage: mkcygelfsyms <infile> <outfile>\n");
	fprintf(stderr,"eg. mkcygelfsyms hello.map hello.sym\n");
	exit(1);
	}
mksyms(argv[1],argv[2]);
}

/*************************************************************
*  mksyms(char *ifn,char *ofn)
*/
mksyms(ifn,ofn)
char *ifn,*ofn;
{
FILE *ifp,*ofp;
char buf[100],*field[10];
int nf,flag,csum,len;

if (vflag) fprintf(stderr,"mksyms %s > %s\n",ifn,ofn);

flag = 0;
ifp = fopen(ifn,"r");
if (ifp == 0) {
	fprintf(stderr,"Can't open %s\n",ifn);
	exit(1);
	}

ofp = fopen(ofn,"w");
if (ofp == 0) {
	fprintf(stderr,"Can't open %s\n",ofn);
	exit(1);
	}

for (;;) {
	if (!fgets(buf,100,ifp)) break;
	buf[strlen(buf)-1] = 0;

	if (strlen(buf)==0) continue;
	if (buf[0] != ' ') continue;
	nf = argvize(field,buf);
	if (nf != 2) continue;
	if (strlen(field[0]) != 18) continue;
	if (strncmp(field[0],"0x00000000",10)) continue;
	if (strchr(field[1],'=')) continue;

	csum = 0;
	len = strlen(field[1])+8+2;
	fprintf(ofp,"S4%02X%s%s,%02x\n",len,&field[0][10],field[1],csum);
	}
fclose(ifp);
fclose(ofp);
}

/*************************************************************
*  int argvize(av,s) 
*	place address of each word in s into the array av
*/
int argvize(av,s)
char *av[];
char *s;
{
char **pav = av, c;
int ac;

for (ac=0;;ac++) {
	/* step over cntrls and spaces */
	while(*s && *s <= ' ') ++s;

	/* if eos quit */
	if(!*s) break;

	c = *s;
	/* find end of word */
	if (pav) *pav++ = s;
	while(' ' < *s) ++s;

	/* not eos inc ptr */
	if(*s) *s++ = 0;
	}
return(ac);
}