epi.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/epi.c
 * Purpose: compiler driver for pmcc command for EPI tools
 * Author: Phil Bunce ([e-mail])
 * Revision History:
 *	970304	Added -driver and -ice
 *	970307	Added dList/nList to fix -lmon probs
 *	970307	Turned off #173 warnings
 *	970313	mksyms modified to take 2 filenames
 *	970313	Added -ssyms option (separate symbols)
 *	970314	Removed $LSIPKG refs in crtn pathnames
 *	970417	Added check for nfiles==0
 *	970902	Removed -ice option
 */

#include <stdio.h>
#include <malloc.h>
#include <string.h>
#include "../include/defines.h"
#include "misc.h"
#define DYNDEFS		/* support dynamic defines */
#define PRAGMAS "-Hpragma='Offwarn(553)' -Hpragma='Offwarn(64)' \
    -Hpragma='Offwarn(268)' -Hpragma='Offwarn(289)' -Hpragma='Offwarn(240)' \
    -Hpragma='Offwarn(652)' -Hpragma='Offwarn(269)' -Hpragma='Offwarn(173)'"

/* set various defaults */
int vflag = 0;
int fast = 1;
int syms = 1;
int ssyms_flag;
char *chksum = "";
char *ofile = "a";
char LIBM[100] = "/usr/lib/cmplrs/cc";
char cmdfile[] = "cmdfile";
char cmdchar[] = "@";

int crt0_flag;
char tmp[LNMAX],tmp2[LNMAX];
char *ENDIAN,*Gnum,*LSIPMCC;
char *COMP_HOST_ROOT;
Str flags,cflags,asflags,ldflags,ofiles,llist,ilist,rflags,files,LIBS,ppflags;
Str *strlst[] = {&flags,&cflags,&asflags,&ldflags,&ofiles,&llist,&ilist,
 &ppflags,&rflags,&files,&LIBS,0};
char *LSIPKG;
char *LIBC, *crt0;
char *initial_lc = "-lc";
char objfile[100];
char tstart[10];
char *dstart;
int nfiles;
char stoppoint;
int SZ;
char *HCDIR;
char *clientpc;
int driver;
char *dList[20];
int nList;

char *getDef();

/*************************************************************
*  main(argc,argv)
*/
main(argc,argv)
int argc;
char *argv[];
{
int i,status,SZ,sz;
char *p,*e,h[20],*vtmp,*fmt,*file;
FILE *cfp;
char tmp2[100];

SZ = 0;
if (! (LSIPKG=getenv("LSIPKG"))) {
	fprintf(stderr,"pmcc: LSIPKG not set\n");
	Exit(1);
	}

if (! (HCDIR=getenv("HCDIR"))) {
	fprintf(stderr,"pmcc: HCDIR not set\n");
	Exit(1);
	}

/* for backward compatability we set LSIPMCC */
if (! (LSIPMCC=getenv("LSIPMCC"))) LSIPMCC = "";

#ifdef DYNDEFS
sprintf(tmp,"%s/include/defines.h",LSIPKG);
readDefs(tmp);

if (getDef("SREC")) fast = 0;
if (clientpc=getDef("CLIENTPC")) strcpy(tstart,&clientpc[2]);
else strcpy(tstart,"80020000");

#else
#ifdef SREC
fast = 0;
#endif

#ifdef CLIENTPC
sprintf(tstart,"%08lx",CLIENTPC);
#else
strcpy(tstart,"80020000");
#endif
#endif

/* Select default Endianess. */
#ifdef LENDEF
ENDIAN = "l";
#else
ENDIAN = "b";
#endif

Gnum = "o";

sprintf(tmp,"-I%s/include",LSIPKG);
Strcpy(&ilist,tmp);
sprintf(tmp,"-l %s/lib/%%s%%s/libc.a",LSIPKG);
Strcpy(&llist,tmp);
sprintf(tmp,"-DPMCC -DEPI %s",LSIPMCC);
Strcpy(&flags,tmp);
Strcpy(&cflags,"-w1");
Strcpy(&asflags,"");

getargs(argc,argv);

if (strequ(ENDIAN,"l")) addarg(&flags,"-r");

strcpy(objfile,ofile);
if (strequ(ofile,"a")) strcpy(objfile,"a.out");

if (stoppoint==0) {
	addarg(&cflags,"-c"); /* never want the hc driver to call ld */
	addarg(&ldflags,"-o");
	addarg(&ldflags,objfile);
	}
else if (nfiles == 1) {
	file = getStrn(&files,0);
	e = extent(file);
	getHead(h,file);
	if (strequ(e,"c")) {
		addarg(&cflags,"-o");
		if (!strequ(ofile,"a")) addarg(&cflags,ofile);
		else {
			if (stoppoint == 'c') sprintf(tmp,"%s.o",h);
			else sprintf(tmp,"%s.s",h);
			addarg(&cflags,tmp);
			}
		}
	else if (strequ(e,"s")) {
		addarg(&asflags,"-o");
		if (!strequ(ofile,"a")) addarg(&asflags,ofile);
		else {
			sprintf(tmp,"%s.o",h);
			addarg(&asflags,tmp);
			}
		}
	free(file);
	}

sprintf(tmp,llist.str,ENDIAN,Gnum,ENDIAN,Gnum);
addarg(&ldflags,tmp);
addarg(&flags,ilist.str);

if (nfiles == 0) {
	printf("Fatal error: no files specified.\n"); 
	exit(1); 
	} 

/* now invoke the compiler */
for (i=0;i<nfiles;i++) {
	file = getStrn(&files,i);
	e = extent(file);
	if (strequ(e,"s")) {
		getRoot(tmp2,file);
		fmt = "%s/bin/eas -s -I%s %s %s %s";
		sz = strlen(HCDIR)+strlen(tmp2)+strlen(flags.str)+
			strlen(asflags.str)+strlen(file)+strlen(fmt);
		vtmp = malloc(sz);
		sprintf(vtmp,fmt,HCDIR,tmp2,flags.str,asflags.str,file);
		if (status=System(vtmp)) Exit(status);
		Free(vtmp);
		getHead(tmp,file);
		strcat(tmp,".o");
		addarg(&ofiles,tmp);
		}
	else if (strequ(e,"c")) {
		fmt = "%s/bin/hc %s %s %s %s";
		sz = strlen(HCDIR)+strlen(PRAGMAS)+strlen(flags.str)+
			strlen(cflags.str)+strlen(file)+strlen(fmt);
		vtmp = malloc(sz);
		sprintf(vtmp,fmt,HCDIR,PRAGMAS,flags.str,cflags.str,file);
		if (status=System(vtmp)) Exit(status);
		Free(vtmp);
		getHead(tmp,file);
		strcat(tmp,".o");
		addarg(&ofiles,tmp);
		}
	else if (strequ(e,"o")) {
		addarg(&ofiles,file);
		}
	else if (strequ(e,"a")) {
		addarg(&ofiles,file);
		}
	else {
		fprintf(stderr,"%s: bad extent\n",e);
		Exit(1);
		}
	free(file);
	}

if (stoppoint != 0) Exit(0);

/* Select math library */
if (SZ) {
	sprintf(tmp,"%s/libm/%s/libm.a",LSIPKG,ENDIAN);
	if (fileExists(tmp)) strcpy(LIBM,tmp);
	}

/* Select C library */
fmt = "%s/lib/%s%s";
sz = strlen(fmt)+strlen(LSIPKG)+strlen(ENDIAN)+strlen(Gnum);
LIBC = malloc(sz);
sprintf(LIBC,fmt,LSIPKG,ENDIAN,Gnum);
if (!crt0) {
	fmt = "%s/crt0.o";
	crt0 = malloc(strlen(fmt)+strlen(LIBC));
	sprintf(crt0,fmt,LIBC);
	}

if (dstart) {
	sprintf(tmp,"%s.lk",objfile);
	cfp = fopen(tmp,"w");
	if (cfp == 0) {
		fprintf(stderr,"can't open %s\n",tmp);
		Exit(1);
		}
	fprintf(cfp,
		"SECTIONS\n{\n\t.text ADDRESS 0x%s:\n\tGROUP ADDRESS 0x%s:\n",
		tstart,dstart);
	fprintf(cfp,"\t{\n\t\t.rdata ALIGN 8:\n\t\t.data ALIGN 8:\n");
	fprintf(cfp,"\t\t.sdata ALIGN 8:\n\t\t.sbss ALIGN 8:\n");
	fprintf(cfp,"\t\t.bss ALIGN 8:\n\t}\n}\n");
	fclose(cfp);
	}

if (dstart) {
	fmt = "%s/bin/eld %s.lk %s %s %s -t > %s.map";
	sz = strlen(HCDIR)+strlen(ofile)+strlen(ldflags.str)+strlen(crt0)+
		strlen(ofiles.str)+strlen(ofile)+strlen(fmt);
	vtmp = malloc(sz);
	sprintf(vtmp,fmt,HCDIR,ofile,ldflags.str,crt0,ofiles.str,ofile);
	}
else {
	fmt = "%s/bin/eld -x0x%s %s %s %s -t > %s.map";
	sz = strlen(HCDIR)+strlen(tstart)+strlen(ldflags.str)+strlen(crt0)+
		strlen(ofiles.str)+strlen(ofile)+strlen(fmt);
	vtmp = malloc(sz);
	sprintf(vtmp,fmt,HCDIR,tstart,ldflags.str,crt0,ofiles.str,ofile);
	}

if (status=System(vtmp)) Exit(status);
Free(vtmp);

/* now make the appropriate download records */
Strcpy(&rflags,"-h -m3");
if (driver) {
	fmt = "%s/bin/ft %s -o %s.tmp %s";
	sz = strlen(HCDIR)+strlen(rflags.str)+strlen(ofile)+strlen(objfile)
		+strlen(fmt);
	vtmp = malloc(sz);
	sprintf(vtmp,fmt,HCDIR,rflags.str,ofile,objfile);
	if (vflag) fprintf(stderr,"%s\n",vtmp);
	if (status=System(vtmp)) Exit(status);
	Free(vtmp);
	sprintf(tmp,"%s.rec",ofile);
	sprintf(tmp2,"%s.tmp",ofile);
	str2file(tmp,"SD");
	appendFile(tmp,tmp2);
	Exit(0);
	}

if (prom) addarg(&rflags,"-x rda=t");
if (syms) {
	fmt = "%s/bin/ft %s -o %s.tmp %s";
	sz = strlen(HCDIR)+strlen(rflags.str)+strlen(ofile)+strlen(objfile)
		+strlen(fmt);
	vtmp = malloc(sz);
	sprintf(vtmp,fmt,HCDIR,rflags.str,ofile,objfile);
	if (status=System(vtmp)) Exit(status);
	Free(vtmp);
	sprintf(tmp,"%s.rec",ofile);
	sprintf(tmp2,"%s.map",ofile);
	mksyms(tmp2,tmp);
	sprintf(tmp2,"%s.tmp",ofile);
	appendFile(tmp,tmp2);
	if (vflag) fprintf(stderr,"rm %s\n",tmp2);
	unlink(tmp2);
	}
else {
	fmt = "%s/bin/ft %s -o %s.rec %s";
	sz = strlen(HCDIR)+strlen(rflags.str)+strlen(ofile)+strlen(objfile)
		+strlen(fmt);
	vtmp = malloc(sz);
	sprintf(vtmp,fmt,HCDIR,rflags.str,ofile,objfile);
	if (status=System(vtmp)) Exit(status);
	Free(vtmp);
	}

if (fast) {
	sprintf(tmp,"%s.tmp",ofile);
	sprintf(tmp2,"%s.rec",ofile);
	unlink(tmp);
	rename(tmp2,tmp);
	fmt = "%s/tools/rdsrec -f %s.tmp -o %s.rec";
	sz = strlen(LSIPKG)+strlen(ofile)+strlen(ofile)+strlen(fmt);
	vtmp = malloc(sz);
	sprintf(vtmp,fmt,LSIPKG,ofile,ofile);
	if (status=System(vtmp)) Exit(status);
	Free(vtmp);
	}

if (ssyms_flag) {
	sprintf(tmp,"%s.map",ofile);
	sprintf(tmp2,"%s.sym",ofile);
	mksyms(tmp,tmp2);
	}

Exit(0);
}

/*************************************************************
*  getargs(argc,argv)
*/
getargs(argc,argv)
int argc;
char *argv[];
{
int i,j,sz;
char *p,*fmt;

/*
# This while loop does several jobs:
# 	1. strips off any pmcc defined options
# 	2. some options, if specified, must preceed path specs
# 	   so extract them from here, and add them to flags.
# 	3. find the output filename, if specified
*/

for (i=1;i < argc;i++) {
	if (!strncmp(argv[i],"-l",2)) {
		for (j=0;j<nList;j++) {
			sprintf(tmp,"%s/lib%s.a",dList[j],&argv[i][2]);
			if (fileExists(tmp)) {
				addarg(&ldflags,"-l");
				addarg(&ldflags,tmp);
				}
			}
		}
	else if (strequ(argv[i],"-G")) {
		i++;
		sprintf(tmp,"-G%s",argv[i]);
		addarg(&flags,tmp);
		if (strequ(argv[i],"0")) Gnum = "g";
		else Gnum = "o";
		}
        else if (!strncmp(argv[i],"-D",2) && strlen(argv[i]) > 2) {
                addarg(&flags,argv[i]);
                }
	else if (strequ(argv[i],"-float")) {
		addarg(&flags,argv[i]);
		addarg(&flags,"-DFLOAT");
		SZ = 1;
		}
	else if (getStdArgs(argc,argv,&i)) ;
	else if (argv[i][0] == '-') {
		fprintf(stderr,"%s: bad arg\n",argv[i]);
		exit(1);
		}
	else {
		addarg(&files,argv[i]);
		nfiles++;
		}
	}
}

/*************************************************************
*  mksyms(ifn,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;
	if (!strncmp(buf,"SYMBOL",6)) {
		flag = 1;
		continue;
		}
	if (!flag) continue;
	nf = argvize(field,buf);
	if (nf < 3 || nf > 4) continue;
	csum = 0;
	len = strlen(field[0])+8+2;
	fprintf(ofp,"S4%02X%s%s,%02x\n",len,field[1],field[0],csum);
	}
fclose(ifp);
fclose(ofp);
}

/*************************************************************
*  Exit(x)
*/
Exit(x)
int x;
{
int i;
for (i=0;strlst[i];i++) {
	if (strlst[i]->str) free(strlst[i]->str);
	}
exit(((x)>127)?1:(x));
}