algo.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/algo.c
 * Purpose: The pmcc compiler driver for the Algorithmics toolset
 * Author: Phil Bunce ([e-mail])
 * Revision History:
 *	970303	Added -ice and -driver options
 *	970313	Modified mksyms to work with algo's .map file
 *	970313	Added -ssyms option (separate symbols)
 *	970314	Removed $LSIPKG refs in crtn pathnames
 *	970417	Added check for nfiles==0
 *	970902	Removed -ice option
 *	980402	Added support for sde3
 *	980720	Added -mips16
 *	981123	Fixed crt0 prob.
 *	990113	Fixed another crt0 prob.
 *	990119	Added support for .rec extents.
 */

#include <stdio.h>
#include <malloc.h>
#include <string.h>
#include "../include/defines.h"
#include "misc.h"
#define DYNDEFS
/*************************************************************
pmcc -- PMON compiler interface

This program provides a standardized interface to the Algorithmics toolset.
When linking it places the object file in OFILE, the downloadable records
in OFILE.rec, and the link map in OFILE.map.

This program assumes that the environment variable LSIPKG has been set.
 
In addition to the usual cc options, this script supports:
	-fast		- generate fast-format download records (default)
	-srec		- generate S-record download records
	-syms		- omit symbols from the download file
	-double		- use LSI-supplied double-precision math library
	-chksum		- don't generate chksum data in fast records
	-crt0		- don't include the standard crt0
	-prom		- append data to text for building proms

Please checkout the pmcc man page for the latest information.
*************************************************************/
#ifndef TOOLREV
#define TOOLREV 10400
#endif

#ifdef MSDOS
#define LINKER "ld"
char cmdchar[] = "@";
#else /* Unix */
#if TOOLREV >= 20000
#define LINKER "sde-ld"
#else
#define LINKER "ld-sde"
#endif
#endif

#define MAXPATH 400

/* set various defaults */
int vflag = 0;	/* verbose flag */
int fast = 1;
int ssyms_flag;
int syms = 1;
char *chksum = "";
char *ofile = "a";
char *initial_lc = "-lc";
int driver;
char cmdfile[] = "cmdfile";
char LIBM[MAXPATH] = "/usr/lib/cmplrs/cc";

char tmp[LNMAX],tmp2[LNMAX];
char *ENDIAN,*Gnum,*LSIPMCC;
char *COMP_HOST_ROOT,*SDEROOT,*TMPDIR;
Str flags,cflags,asflags,ldflags,ppflags,ofiles,llist,ilist,LIBS,files;
Str *strlst[] = {&flags,&cflags,&asflags,&ldflags,&ppflags,&ofiles,
	&llist,&ilist,&LIBS,&files,0};
char *LSIPKG;
char LIBC[MAXPATH];
char objfile[MAXPATH];
char tstart[MAXPATH];
char *dstart;
char *CC;
int nfiles;
char stoppoint;
int SZ;
char tmppath[MAXPATH],cpppath[MAXPATH];
char mname[MAXPATH]; /* module object name */
char *clientpc;
int toolrev;
char *conv;
extern int long_cmds_ok;

char *getDef();

/*************************************************************
*  main(argc,argv)
*/
main(argc,argv)
int argc;
char *argv[];
{
int i,status,SZ,sz;
char *e,*p,h[MAXPATH],*redir;
char tmp2[MAXPATH];
char *vtmp,*fmt,*file,*symsw,*promsw;

SZ = 0;
if (! (LSIPKG=getenv("LSIPKG"))) {
	fprintf(stderr,"pmcc: LSIPKG 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");
sscanf(getDef("TOOLREV"),"%d",&toolrev);

/* only need this for really old tools */
if (toolrev < 20002) strcpy(cpppath,getDef("CPPPATH")); 
if (toolrev >= 30000) conv = "sde-conv";
else conv = "conv-sde";
#else

#ifdef SREC
fast = 0;
#endif

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

strcpy(cpppath,CPPPATH);
#endif /* !DYNDEFS */

#ifdef MSDOS
if (! (TMPDIR=getenv("TMPDIR"))) {
	fprintf(stderr,"pmcc: TMPDIR not set\n");
	Exit(1);
	}
p = tmppath + sprintf(tmppath,"%s",TMPDIR);
strcat(tmppath,"/PMXXXXXX");
mktemp(p);
#else
if (! (SDEROOT=getenv("SDEROOT"))) {
	fprintf(stderr,"pmcc: SDEROOT not set\n");
	Exit(1);
	}
strcpy(tmppath,"/tmp/PMXXXXXX");
mktemp(&tmppath[5]);
#endif

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

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

Gnum = "o";
if (toolrev >= 30000) {
	CC = "sde-gcc";
	long_cmds_ok = 1;
	}
else CC = "gcc-sde";
stdcrt0 = "%s/lib/%s%s/crt0.o";

sprintf(tmp,"-I%s/include",LSIPKG);
Strcpy(&ilist,tmp);
sprintf(tmp,"-L%s/lib/%%s%%s",LSIPKG);
Strcpy(&llist,tmp);
sprintf(tmp,"-DPMCC -DALGOR %s",LSIPMCC);
Strcpy(&flags,tmp);

getargs(argc,argv);
if (vflag) addarg(&flags,"-v");

if (strequ(ENDIAN,"b")) {
	addarg(&asflags,"-EB");
	addarg(&cflags,"-EB");
	}
else {
#if TOOLREV >= 20000
	addarg(&ldflags,"-oformat elf32-littlemips");
#else
	addarg(&ldflags,"-b elf-little");
#endif
#if !defined(MSDOS) || TOOLREV >= 20000
	addarg(&asflags,"-EL");
	addarg(&cflags,"-EL");
#endif
	}

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

if (stoppoint==0) {
	addarg(&cflags,"-c"); /* never want the cc driver to call ld */
	addarg(&asflags,"-c"); /* never want the cc driver to call ld */
	addarg(&ldflags,"-o");
	addarg(&ldflags,objfile);
	}

sprintf(tmp,llist.str,ENDIAN,Gnum,ENDIAN,Gnum);
addarg(&ldflags,tmp);
addarg(&cflags,ilist.str);
addarg(&ppflags,ilist.str);
addarg(&asflags,"-DLANGUAGE_ASSEMBLY");
addarg(&cflags,"-DLANGUAGE_C");

if (strequ(ENDIAN,"l")) {
	addarg(&cflags,"-DMIPSEL");
	addarg(&ppflags,"-DMIPSEL");
	}
else {
	addarg(&cflags,"-DMIPSEB");
	addarg(&ppflags,"-DMIPSEB");
	}

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);
	getHead(h,file);
        if (nfiles == 1 && !strequ(ofile,"a") && stoppoint != 0)
                strcpy(mname,ofile);
        else sprintf(mname,"%s.o",h);
	if (strequ(e,"s")) {
#if TOOLREV < 20002
		/* fix the hash */
		sprintf(tmp,"fixhash(%s,%s.t1)",file,tmppath);
		if (vflag) fprintf(stderr,"%s\n",tmp);
		sprintf(tmp,"%s.t1",tmppath);
		fixhash(file,tmp);

		/* hack to support .struct */
		getRoot(tmp2,file);
		sprintf(tmp,"%s/cpp %s -I%s %s %s %s.t1 %s.t2",
			cpppath,flags.str,tmp2,ppflags.str,"-DLANGUAGE_ASSEMBLY",
			tmppath,tmppath); 
		if (status=System(tmp)) Exit(status);
		sprintf(tmp,"%s.t2",tmppath);
		sprintf(tmp2,"%s.sx",tmppath);
		if (vflag) fprintf(stderr,"fixstruct(%s,%s)\n",tmp,tmp2);
		fixstruct(tmp,tmp2);

		fmt = "%s -c %s %s %s -o %s %s.sx";
		sz = strlen(CC)+strlen(flags.str)+strlen(ppflags.str)+
			strlen(asflags.str)+strlen(mname)+strlen(tmppath)+
			strlen(fmt);
		vtmp = malloc(sz);
		sprintf(vtmp,fmt,CC,flags.str,ppflags.str,asflags.str,
			mname,tmppath);
#else
		fmt = "%s -c -DLANGUAGE_ASSEMBLY -x assembler-with-cpp -traditional %s %s %s -o %s %s";
		sz = strlen(CC)+strlen(flags.str)+strlen(ppflags.str)+
			strlen(asflags.str)+strlen(mname)+strlen(file)+
			strlen(fmt);
		vtmp = malloc(sz);
		sprintf(vtmp,fmt,CC,flags.str,ppflags.str, asflags.str,
			mname,file);
#endif
		if (status=System(vtmp)) Exit(status);
		free(vtmp);

		getHead(tmp,file);
		strcat(tmp,".o");
		addarg(&ofiles,tmp);
		}
	else if (strequ(e,"rec")) {
		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 = "%s -c -DLANGUAGE_ASSEMBLY -x assembler-with-cpp -traditional %s %s %s -o %s tmp.s";
		sz = strlen(CC)+strlen(flags.str)+strlen(ppflags.str)+
			strlen(asflags.str)+strlen(mname)+strlen(file)+
			strlen(fmt);
		vtmp = malloc(sz);
		sprintf(vtmp,fmt,CC,flags.str,ppflags.str, asflags.str,
			mname);
		if (status=System(vtmp)) Exit(status);
		free(vtmp);

		getHead(tmp,file);
		strcat(tmp,".o");
		addarg(&ofiles,tmp);
		}
	else if (strequ(e,"c")) {
		fmt = "%s %s %s -o %s %s";
		sz = strlen(CC)+strlen(flags.str)+strlen(cflags.str)+
		     strlen(mname)+strlen(file)+strlen(fmt);
		vtmp = malloc(sz);
		sprintf(vtmp,fmt,CC,flags.str,cflags.str,mname,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,"pmcc: %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 */
sprintf(LIBC,"%s/lib/%s%s",LSIPKG,ENDIAN,Gnum);
if (stdcrt0) addcrt0(stdcrt0,LSIPKG,ENDIAN,Gnum);
if (crt0.str == 0) Strcpy(&crt0,"");
	

/* -nostdlib */
#if TOOLREV >= 20000
redir = "-Map";
#else
redir = ">";
#endif

if (dstart) {
	fmt = "%s -N -M -e _start -Ttext %s -Tdata %s %s %s %s %s %s %s %s.map";
	sz = strlen(LINKER)+strlen(tstart)+strlen(dstart)+strlen(ldflags.str)+
	Strlen(&crt0)+strlen(ofiles.str)+strlen(initial_lc)+strlen(LIBS.str)+
	strlen(redir)+strlen(ofile)+strlen(fmt);
	vtmp = malloc(sz);
	sprintf(vtmp,fmt,LINKER,tstart,dstart,ldflags.str,crt0.str,ofiles.str,
		initial_lc,LIBS.str,redir,ofile);
	}
else {
	fmt = "%s -N -M -e _start -Ttext %s %s %s %s %s %s %s %s.map";
	sz = strlen(LINKER)+strlen(tstart)+strlen(ldflags.str)+
	Strlen(&crt0)+strlen(ofiles.str)+strlen(initial_lc)+strlen(LIBS.str)+
	strlen(redir)+strlen(ofile)+strlen(fmt);
	vtmp = malloc(sz);
	sprintf(vtmp,fmt,LINKER,tstart,ldflags.str,crt0.str,ofiles.str,
		initial_lc,LIBS.str,redir,ofile);
	}

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

if (driver) {
	fmt = "%s -o %s.tmp %s";
	sz = strlen(conv)+strlen(fmt)+strlen(ofile)+
	 	strlen(objfile);
	vtmp = malloc(sz);
	sprintf(vtmp,fmt,conv,ofile,objfile);
	if (status=System(vtmp)) Exit(status);
	free(vtmp);
	sprintf(tmp,"%s.tmp",ofile);
	sprintf(tmp2,"%s.rec",ofile);
	str2file(tmp2,"SD"); /* write "SD" to ofile.rec */
	appendFile(tmp2,tmp);
	Exit(0);
	}

/* now make the appropriate download records */
if (fast) fmt = "%s -f lsi %s %s -o %s.rec %s";
else fmt = "%s %s %s -o %s.rec %s";
if (syms) symsw = "-y";
else symsw = "";
if (prom) promsw = "-p";
else promsw = "";
sz = strlen(fmt)+strlen(conv)+strlen(promsw)+strlen(symsw)+strlen(ofile)+
strlen(objfile);
vtmp = malloc(sz);
sprintf(vtmp,fmt,conv,promsw,symsw,ofile,objfile);
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;
char *p;

/*
# 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 (strequ(argv[i],"-mips2")) {
		addarg(&cflags,argv[i]);
		addarg(&cflags,"-mcpu=r4000");
		addarg(&asflags,argv[i]);
		addarg(&asflags,"-mcpu=r4000");
		}
	else if (strequ(argv[i],"-mips16")) {
		addarg(&cflags,argv[i]);
		addarg(&asflags,argv[i]);
		mips16 = 1;
		}
	else if (strequ(argv[i],"-G")) {
		i++;
		addarg(&cflags,"-G");
		addarg(&cflags,argv[i]); 
		addarg(&asflags,"-G");
		addarg(&asflags,argv[i]);
		if (strequ(argv[i],"0")) Gnum = "g";
		else Gnum = "o";
		}
	else if (!strncmp(argv[i],"-O",2)) {
		addarg(&cflags,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(char *ifn,char *ofn)
*/
mksyms(ifn,ofn)
char *ifn,*ofn;
{
FILE *ifp,*ofp;
char buf[MAXPATH],*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 (!strcmp(buf,"**LINK EDITOR MEMORY MAP**")) flag = 1;
	if (!flag) continue;

	if (strlen(buf)==0) continue;
	if (buf[0] != ' ') continue;
	nf = argvize(field,buf);
	if (nf != 2) continue;
	if (strlen(field[0]) != 8) continue;

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

#ifndef Exit
/*************************************************************
*  Exit(x)
*/
Exit(x)
int x;
{
int i;
for (i=0;strlst[i];i++) {
	if (strlst[i]->str) free(strlst[i]->str);
	}
sprintf(tmp,"%s.t1",tmppath);
if (fileExists(tmp)) unlink(tmp);
sprintf(tmp,"%s.t2",tmppath);
if (fileExists(tmp)) unlink(tmp);
sprintf(tmp,"%s.sx",tmppath);
if (fileExists(tmp)) unlink(tmp);
exit(((x)>127)?1:(x));
}
#endif