bso.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/bso.c
 * Purpose: Compiler driver for pmcc command for BSO/Tasking tools.
 * Author: Phil Bunce ([e-mail])
 * Revision History:
 *	970303	Added -driver and -ice options.
 *	970303	Switched files[] over to a Str.
 *	970303	Added -w to as cmd line.
 *	970313	Changed mksyms to take 2 filenames
 *	970313	Added -ssyms option (separate symbols)
 *	970314	Removed $LSIPKG refs in crtn pathnames
 *	970417	Added check for nfiles==0
 *	970602	Changed prom block size from 256k to 1M
 *	970902	Removed -ice option
 *	980611	Added -Pss to cc3 command line for struct packing.
 *	981028	Moved std opts to misc.c.
 *	990119	Added support for .rec files.
 */

#include <stdio.h>
#include <string.h>
#include <malloc.h>
#define DYNDEFS
#ifndef DYNDEFS
#include "../include/defines.h"
#endif
#include "misc.h"
/*************************************************************
pmcc -- PMON compiler interface
This program provides a standardized interface to the BSO toolset.
This program assumes that the environment variable LSIPKG has been set.
*************************************************************/

/* set various defaults */
int vflag = 0;
int fast = 1;
int ssyms_flag;
int syms = 1;
char *chksum = "";
char *ofile = "a";
char cmdfile[] = "cmdfile";
char cmdchar[] = "-f ";

int gflag;
char tmp[LNMAX],tmp2[LNMAX];
char *ENDIAN,*COMP_HOST_ROOT;
char *Gnum;
Str cflags,asflags,ldflags,flags,ppflags,llist,ofiles,files,ilist,LIBS;
Str *strlst[] = {&cflags,&asflags,&ldflags,&flags,&ppflags,&llist,
	&ofiles,&files,&LIBS,&ilist,0};
char *crt0;
char PROM[20],DRAM[20];
char *TSEG,*DSEG;
char TSTART[16],DSTART[16];
char *LSIPKG,*BSO_TASKING;
char *LIBC;
char mname[32]; /* module object name */
char objfile[100];
char tstart[10];
char *dstart;
int nfiles;
char stoppoint;
int SZ;
char *vtmp;
char *clientpc;
int driver;
char *initial_lc = "-lc";

unsigned long getlength();
char *getDef();

/*************************************************************
*  main(argc,argv)
*/
main(ac,av)
int ac;
char *av[];
{
int i,status,sz;
char *e,*p,*fmt,*file;
FILE *cfp;
char tmp2[100],h[100];
unsigned long addr,len;
int seg;

SZ = 0;
Gnum = "o";

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

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

Strcpy(&LIBS,"");
#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(tmp,"%08lx",CLIENTPC);
strcpy(tstart,tmp);
#else
strcpy(tstart,"80020000");
#endif

#endif /* !DYNDEFS */

sprintf(tmp,"-I%s/include",LSIPKG);
Strcpy(&ilist,tmp);

strcpy(tmp,"-w66 -w68 -w135");
Strcpy(&cflags,tmp);
strcpy(tmp,"-DPMCC -DBSO_TASKING");
Strcpy(&ppflags,tmp);

fmt = "-L%s/lib/%%s%%s";
sz = strlen(fmt)+strlen(LSIPKG);
vtmp = malloc(sz);
sprintf(vtmp,fmt,LSIPKG);
Strcpy(&llist,vtmp);
Free(vtmp);

Strcpy(&asflags,"-w"); /* 970303 this has been added to suppress W106 msgs */
Strcpy(&ldflags,"");
Strcpy(&LIBS,"");

/* Select default Endianess. */
#ifdef DYNDEFS

if (getDef("LENDEF")) ENDIAN = "l";
else ENDIAN = "b";
#else

#ifdef LENDEF
ENDIAN = "l";
#else
ENDIAN = "b";
#endif

#endif /* !DYNDEFS */

getargs(ac,av);

addarg(&cflags,ilist.str);
addarg(&ppflags,ilist.str);

if (strequ(ENDIAN,"b")) {
	addarg(&flags,"-EB");
	addarg(&ppflags,"-DMIPSEB");
	}
else {
	addarg(&flags,"-EL");
	addarg(&ppflags,"-DMIPSEL");
	}

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);
	if (!(e = extent(file))) { 
		fprintf(stderr,"error: %s: has no extent\n",file);
		Exit(1);
		}
	getHead(h,file);
	if (nfiles == 1 && !strequ(ofile,"a") && stoppoint != 0) 
		strcpy(mname,ofile);
	else sprintf(mname,"%s.o",h);
	if (strequ(e,"s")) {
		fmt = "cpp3 -a -DLANGUAGE_ASSEMBLY %s %s > %s.i";
		sz = strlen(ppflags.str)+strlen(file)+strlen(h)+strlen(fmt);
		vtmp = malloc(sz);
		sprintf(vtmp,fmt,ppflags.str,file,h);
		if (status=System(vtmp)) Exit(status);
		Free(vtmp);
		fmt = "as3 %s %s -o %s %s.i";
		sz = strlen(flags.str)+strlen(asflags.str)+strlen(mname)+
			strlen(h)+strlen(fmt);
		vtmp = malloc(sz);
		sprintf(vtmp,fmt,flags.str,asflags.str,mname,h);
		if (status=System(vtmp)) Exit(status);
		Free(vtmp);
		strcpy(tmp,h);
		strcat(tmp,".o");
		addarg(&ofiles,tmp);
		}
	else if (strequ(e,"rec")) { /* 990119 */
		fmt = "rdsrec -A dat1 %s -o tmp.s";
		sz = strlen(fmt)+strlen(file);
		vtmp = malloc(sz);
		sprintf(vtmp,fmt,file);
		if (status=System(vtmp)) Exit(status);
		free(vtmp);

		fmt = "as3 %s %s -o %s tmp.s";
		sz = strlen(flags.str)+strlen(asflags.str)+strlen(mname)+
			strlen(fmt);
		vtmp = malloc(sz);
		sprintf(vtmp,fmt,flags.str,asflags.str,mname);
		if (status=System(vtmp)) Exit(status);
		Free(vtmp);
		strcpy(tmp,h);
		strcat(tmp,".o");
		addarg(&ofiles,tmp);
		}
	else if (strequ(e,"c")) {
		fmt = "cc3 -Pss %s %s %s -DLANGUAGE_C -u -o %s.s %s";
		sz = strlen(flags.str)+strlen(ppflags.str)+strlen(cflags.str)+
			strlen(h)+strlen(file)+strlen(fmt);
		vtmp = malloc(sz);
		sprintf(vtmp,fmt,flags.str,ppflags.str,cflags.str,h,file);
		if (status=System(vtmp)) Exit(status);
		Free(vtmp);
		if (stoppoint == 'S') continue;
		fmt = "as3 %s %s -o %s %s.s";
		sz = strlen(flags.str)+strlen(asflags.str)+strlen(mname)+
			strlen(h)+strlen(fmt);
		vtmp = malloc(sz);
		sprintf(vtmp,fmt,flags.str,asflags.str,mname,h);
		if (status=System(vtmp)) Exit(status);
		Free(vtmp);
		strcpy(tmp,h);
		strcat(tmp,".o");
		addarg(&ofiles,tmp);
		}
	else if (strequ(e,"o")) {
		strcpy(tmp,h);
		strcat(tmp,".o");
		addarg(&ofiles,tmp);
		}
	else if (strequ(e,"a")) {
		strcpy(tmp,h);
		strcat(tmp,".a");
		addarg(&ofiles,tmp);
		}
	else {
		fprintf(stderr,"%s: bad extent\n",e);
		exit(1);
		}
	Free(file);
	}

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

sz = strlen(llist.str)+strlen(ENDIAN)+strlen(Gnum)+strlen(ENDIAN)+strlen(Gnum);
vtmp = malloc(sz);
sprintf(vtmp,llist.str,ENDIAN,Gnum,ENDIAN,Gnum);
Strcpy(&llist,vtmp);
Free(vtmp);

fmt = "-L%s/lib";
sz = strlen(fmt)+strlen(BSO_TASKING);
vtmp = malloc(sz);
sprintf(vtmp,fmt,BSO_TASKING);
addarg(&llist,vtmp);
Free(vtmp);

/* 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";
	sz = strlen(fmt)+strlen(LIBC);
	crt0 = malloc(sz);
	sprintf(crt0,fmt,LIBC);
	}

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

fmt = "lk3 -w 3 %s -o %s.out %s %s %s %s";
sz = strlen(llist.str)+strlen(ofile)+strlen(crt0)+strlen(ofiles.str)+
	strlen(LIBS.str)+strlen(fmt)+strlen(initial_lc);
vtmp = malloc(sz);
sprintf(vtmp,fmt,llist.str,ofile,crt0,ofiles.str,initial_lc,LIBS.str);
if (status=System(vtmp)) Exit(status);
Free(vtmp);

/* work out what kseg and p_start to use */
sscanf(tstart,"%lx",&addr);
seg = addr>>28;

if (addr&0x10000000) tstart[0] = '1';
else tstart[0] = '0';
sprintf(TSTART,"0x%s",tstart);

if (seg < 8) TSEG = "kuseg";
else {
	if (seg >= 0xc) TSEG = "kseg2";
	else {
		if (seg >= 0xa) TSEG = "kseg1";
		else TSEG = "kseg0";
		}
	}

if (dstart) {
	sscanf(dstart,"%lx",&addr);
	seg = addr>>28;

	if (addr&0x10000000) dstart[0] = '1';
	else dstart[0] = '0';
	sprintf(DSTART,"0x%s",dstart);

	if (seg < 8) DSEG = "kuseg";
	else {
		if (seg >= 0xc) DSEG = "kseg2";
		else {
			if (seg >= 0xa) DSEG = "kseg1";
			else DSEG = "kseg0";
			}
		}

	}

sprintf(tmp,"%s.lk",ofile);
cfp = fopen(tmp,"w");
if (cfp == 0) {
	fprintf(stderr,"Can't open %s\n",tmp);
	exit(1);
	}

if (prom) {
	/* prom image */
	fprintf(cfp,"cpu	%s/etc/lr33000.cpu\n",BSO_TASKING);
	fprintf(cfp, "memory {\n");
	fprintf(cfp, "    down_load=kernel.%s;\n",TSEG);
	fprintf(cfp, "    block prom {p_start=%s;length=1M;}\n",TSTART);
	fprintf(cfp,"    block dram {p_start=%s;length=8M;}\n}\n",DSTART);
	fprintf(cfp, "software {\n");
	fprintf(cfp,"    load_mod * {window=kernel;start=_start;process=1;\n");
	fprintf(cfp,"\tsection .text {p_block=prom;v_space=%s;}\n",TSEG);
	fprintf(cfp,"\ttable {p_block=prom;v_space=%s;}\n",TSEG);
	fprintf(cfp,"\tsection .string,.float,.double,.data,.sdata {\n\tp_block=dram;");
	fprintf(cfp,"v_space=%s;v_c_space=kseg1;p_c_block=prom;}\n",DSEG);
	fprintf(cfp,"\tsection .sbss,.bss {\n");
	fprintf(cfp,"\tp_block=dram;v_space=%s;}\n",DSEG);
	fprintf(cfp,"\theap {p_block=dram;v_space=%s;length=1k;}\n",DSEG);
	fprintf(cfp,"\t}\n}\n");
	fclose(cfp);
	}
else {
	if (dstart) {
	len = getlength(tstart,dstart);
	fprintf(cfp,"cpu	%s/etc/lr33000.cpu\n",BSO_TASKING);
	fprintf(cfp, "memory {\n");
	fprintf(cfp, "    down_load=kernel.%s;\n",TSEG);
	fprintf(cfp,"    block text {p_start=%s;length=%ld;}\n",TSTART,len);
	fprintf(cfp,"    block data {p_start=%s;length=8M;}\n}\n",DSTART);
	fprintf(cfp, "software {\n");
	fprintf(cfp,"    load_mod * {window=kernel;start=_start;process=1;\n");
	fprintf(cfp,"\tsection .text {p_block=text;v_space=%s;}\n",TSEG);
	fprintf(cfp,"\tsection .string,.data {p_block=data;v_space=%s;}\n",DSEG);
	fprintf(cfp,"\tsection .float,.double,.sdata,.sbss {\n");
	fprintf(cfp,"\tp_block=data;v_space=%s;}\n",DSEG);
	fprintf(cfp,"\tsection .bss {p_block=data;v_space=%s;}\n",DSEG);
	fprintf(cfp,"\theap {p_block=data;v_space=%s;length=1k;}\n",DSEG);
	fprintf(cfp,"\t}\n}\n");
	fclose(cfp);
		}
	else {
	fprintf(cfp,"cpu	%s/etc/lr33000.cpu\n",BSO_TASKING);
	fprintf(cfp, "memory {\n");
	fprintf(cfp, "    down_load=kernel.%s;\n",TSEG);
	fprintf(cfp,"    block dram {p_start=%s;length=8M;}\n}\n",TSTART);
	fprintf(cfp, "software {\n");
	fprintf(cfp,"    load_mod * {window=kernel;start=_start;process=1;\n");
	fprintf(cfp,"\tsection .text,.string,.data {\n");
	fprintf(cfp,"\tp_block=dram;v_space=%s;}\n",TSEG);
	fprintf(cfp,"\tsection .float,.double,.sdata,.sbss {\n");
	fprintf(cfp,"\tp_block=dram;v_space=%s;}\n",TSEG);
	fprintf(cfp,"\tsection .bss {p_block=dram;v_space=%s;}\n",TSEG);
	fprintf(cfp,"\theap {p_block=dram;v_space=%s;length=1k;}\n",TSEG);
	fprintf(cfp,"\t}\n}\n");
	fclose(cfp);
		}
	}

if (gflag) {
	fmt = "lc3 -f1 -d %s.lk -o %s.abs -g %s.out";
	sz = strlen(ofile)+strlen(ofile)+strlen(ofile)+strlen(fmt);
	vtmp = malloc(sz);
	sprintf(vtmp,fmt,ofile,ofile,ofile);
	if (status=System(vtmp)) Exit(status);
	Free(vtmp);
	}

/* now locate and make the appropriate download records */
if (syms) {
	fmt = "lc3 -M -f2 -d %s.lk -o %s.tmp %s.out";
	sz = strlen(ofile)+strlen(ofile)+strlen(ofile)+strlen(fmt);
	vtmp = malloc(sz);
	sprintf(vtmp,fmt,ofile,ofile,ofile);
	if (status=System(vtmp)) Exit(status); /* execute & exit if error */
	Free(vtmp);
	sprintf(tmp2,"%s.map",ofile);
	sprintf(tmp,"%s.rec",ofile);
	mksyms(tmp2,tmp); /* .map -> .rec */
	sprintf(tmp2,"%s.tmp",ofile);
	appendFile(tmp,tmp2);
	if (vflag) fprintf(stderr,"rm %s\n",tmp2);
	unlink(tmp2);
	}
else if (driver) {
	fmt = "lc3 -M -f2 -d %s.lk -o %s.tmp %s.out";
	sz = strlen(ofile)+strlen(ofile)+strlen(ofile)+strlen(fmt);
	vtmp = malloc(sz);
	sprintf(vtmp,fmt,ofile,ofile,ofile);
	if (status=System(vtmp)) Exit(status); /* execute & exit if error */
	Free(vtmp);
	sprintf(tmp,"%s.rec",ofile);
	str2file(tmp,"SD");
	sprintf(tmp2,"%s.tmp",ofile);
	appendFile(tmp,tmp2);
	if (vflag) fprintf(stderr,"rm %s\n",tmp2);
	unlink(tmp2);
	}
else {
	fmt = "lc3 -M -f2 -d %s.lk -o %s.rec %s.out";
	sz = strlen(ofile)+strlen(ofile)+strlen(ofile)+strlen(fmt);
	vtmp = malloc(sz);
	sprintf(vtmp,fmt,ofile,ofile,ofile);
	if (status=System(vtmp)) Exit(status); /* execute & exit if error */
	Free(vtmp);
	}

if (fast) { /* build fastFormat records */
	sprintf(tmp,"%s.tmp",ofile);
	sprintf(tmp2,"%s.rec",ofile);
	unlink(tmp); /* make sure that there's no .tmp file */
	rename(tmp2,tmp); /* rename .rec file as .tmp */
	/* convert the srecs in the .tmp file to fastrecs. put the
	result in .rec file */
	sprintf(tmp,"rdsrec -f %s.tmp -o %s.rec",ofile,ofile);
	if (status=System(tmp)) Exit(status); /* execute & exit if error */
	}

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

if (!strequ(ofile,"a")) {
	sprintf(tmp,"%s.out",ofile);
	unlink(ofile); /* required for MSDOS */
	rename(tmp,ofile);
	}
exit(0);
}

/*************************************************************
*  unsigned long getlength(ts,ds)
*/
unsigned long getlength(ts,ds)
char *ts,*ds;
{
unsigned long ta,da;

sscanf(ts,"%lx",&ta);
sscanf(ds,"%lx",&da);
return(da-ta);
}

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

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

/*
# 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],"-mips",5)) {
		addarg(&flags,argv[i]);
		}
        else if (strequ(argv[i],"-c")) stoppoint = 'c';
	else if (strequ(argv[i],"-S")) stoppoint = 'S';
	else if (strequ(argv[i],"-lm")) {
		if (SZ == 1) sprintf(tmp,"-lccs%s",ENDIAN);
		else sprintf(tmp,"-lccd%s",ENDIAN);
		addarg(&LIBS,tmp);
		}
	else if (strequ(argv[i],"-G")) {
		i++;
		addarg(&flags,"-G");
		Strcat(&flags,argv[i]);
		if (strequ(argv[i],"0")) Gnum = "g";
		}
	else if (strequ(argv[i],"-g")) {
		addarg(&flags,argv[i]);
		gflag = 1;
		}
	else if (strequ(argv[i],"-O2") || strequ(argv[i],"-O")) {
		addarg(&flags,"-O");
		}
	else if (strequ(argv[i],"-O3") || strequ(argv[i],"-O4")) {
		addarg(&flags,"-O2");
		}
	else if (strequ(argv[i],"-O0")) {
		addarg(&flags,"-O0");
		}
	else if (strequ(argv[i],"-float")) {
		addarg(&flags,argv[i]);
		addarg(&ppflags,"-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++;
		}
	}
}

/*************************************************************
*  Exit(x)
*/
Exit(x)
int x;
{
int i;

Free(crt0);
Free(LIBC);
Free(vtmp);
for (i=0;strlst[i];i++) {
	if (strlst[i]->str) free(strlst[i]->str);
	}
exit(((x)>127)?1:(x));
}