*
*/
-char rcs_id[] = "$Header$" ;
-
/*
- * The assumption is that this program is run on the same machine the
- * assembler has run. So the assembler's idea of long fits cv's idea.
- * The long's produced in the output file have the m68000 format.
- * The idea's of the longs read in can be changed with the following
- * flags:
- * -v Vax longs
- * -p Pdp 11 longs
- * -m M68000 longs
+ * Fortunately we sold our PMDS machine. Unfortunately, we also sold the
+ * documentation that came with it, so I don't know the a.out format
+ * of the machine. This program is written partly by guessing, and partly from
+ * an older conversion program for the PMDS, which put the whole program
+ * in data. The produced object file does not contain a namelist.
*/
#include <stdio.h>
+#include <out.h>
+
+#define ASSERT(x) switch (2) { case 0: case (x): ; }
+
+/*
+ * Header and section table of new format object file.
+ */
+struct outhead outhead;
+struct outsect outsect[S_MAX];
-char * prog ;
+char *output_file;
+int outputfile_created;
+
+int rom_in_data;
+
+char *program ;
char flag ;
-#define HDR_LENGTH 40
+#define writef(a, b, c) fwrite((a), (b), (int)(c), output)
+
+/* Output file definitions and such */
+
-char hdr[HDR_LENGTH] ;
+#define ENTRY 0
+#define HDRSIZE 40
-main(argc,argv) char **argv; {
- long addr,maxaddr;
- short count;
-
- maxaddr=0;
+char hdr[HDRSIZE];
+
+
+#define TEXTSG 0
+#define ROMSG 1
+#define DATASG 2
+#define BSSSG 3
+#define LSECT BSSSG+1
+#define NSECT LSECT+1
+
+FILE *output;
+
+main(argc, argv)
+ int argc;
+ char *argv[];
+{
+ register int nsect;
+ long magic ;
+ long textsize ;
+ long datasize ;
+ long bsssize;
+ long symstart;
+ extern long ftell();
+
+ output = stdout;
+ program= argv[0] ;
if ( argc>1 && argv[1][0]=='-' ) {
flag=argv[1][1] ;
argc-- ; argv++ ;
}
- if (argc != 3) {
- fprintf(stderr,"Usage: %s [-[vpm]] VU-a.out pmds-a.out\n",argv[0]);
- exit(-1);
+ switch (argc) {
+ case 3: if ((output = fopen(argv[2], "w")) == (FILE *)0)
+ fatal("Can't write %s.\n", argv[2]);
+ output_file = argv[2];
+ outputfile_created = 1;
+ if (! rd_open(argv[1]))
+ fatal("Can't read %s.\n", argv[1]);
+ break;
+ default:fatal("Usage: %s <ACK object> <Mantra object>.\n", argv[0]);
}
- prog=argv[0] ;
- if (freopen(argv[1],"r",stdin)==NULL) {
- fprintf(stderr,"%s: ",prog) ;
- perror(argv[1]);
- exit(-1);
+ rd_ohead(&outhead);
+ if (BADMAGIC(outhead))
+ fatal("Not an ack object file.\n");
+ if (outhead.oh_flags & HF_LINK)
+ fatal("Contains unresolved references.\n");
+ if (outhead.oh_nrelo > 0)
+ fprintf(stderr, "Warning: relocation information present.\n");
+ if ( outhead.oh_nsect!=LSECT && outhead.oh_nsect!=NSECT )
+ fatal("Input file must have %d sections, not %ld\n",
+ NSECT,outhead.oh_nsect) ;
+ rd_sect(outsect, outhead.oh_nsect);
+ /* A few checks */
+ if ( outsect[TEXTSG].os_base != ENTRY)
+ fatal("text must start at %d not at 0x%lx\n", ENTRY,
+ outsect[TEXTSG].os_base) ;
+ if ( outsect[BSSSG].os_flen != 0 )
+ fatal("bss space contains initialized data\n") ;
+ if ( outsect[BSSSG].os_base != outsect[DATASG].os_base+
+ outsect[DATASG].os_size )
+ fatal("bss segment must follow data segment\n") ;
+ if ( outsect[ROMSG].os_lign == 0x8000 ) {
+ /* 410 file with ROMSG in data space */
+ rom_in_data = 1;
+ magic= 0410 ;
+ textsize= outsect[TEXTSG].os_size ;
+ datasize= outsect[ROMSG].os_size + outsect[DATASG].os_size ;
+ if ( outsect[DATASG].os_base != outsect[ROMSG].os_base+
+ outsect[ROMSG].os_size )
+ fatal("data segment must follow rom\n") ;
+ } else
+ if ( outsect[DATASG].os_lign == 0x8000 ) {
+ /* 410 file with ROMSG in instruction space */
+ rom_in_data = 0;
+ magic= 0410 ;
+ textsize= outsect[TEXTSG].os_size + outsect[ROMSG].os_size ;
+ datasize= outsect[DATASG].os_size ;
+ if ( outsect[ROMSG].os_base != outsect[TEXTSG].os_base+
+ outsect[TEXTSG].os_size )
+ fatal("rom segment must follow text\n") ;
+ } else {
+ /* Plain 407 file */
+ rom_in_data = 1;
+ magic= 0407 ;
+ textsize= outsect[TEXTSG].os_size ;
+ datasize= outsect[ROMSG].os_size + outsect[DATASG].os_size ;
+ if ( outsect[ROMSG].os_base != outsect[TEXTSG].os_base+
+ outsect[TEXTSG].os_size )
+ fatal("rom segment must follow text\n") ;
+ if ( outsect[DATASG].os_base != outsect[ROMSG].os_base+
+ outsect[ROMSG].os_size )
+ fatal("data segment must follow rom\n") ;
}
- if (freopen(argv[2],"w",stdout)==NULL) {
- fprintf(stderr,"%s: ",prog) ;
- perror(argv[2]);
- exit(-1);
+ bsssize = outsect[BSSSG].os_size;
+ if ( outhead.oh_nsect==NSECT ) {
+ if ( outsect[LSECT].os_base != outsect[BSSSG].os_base+
+ outsect[BSSSG].os_size )
+ fatal("end segment must follow bss\n") ;
+ if ( outsect[LSECT].os_size != 0 )
+ fatal("end segment must be empty\n") ;
}
- while ( getaddr(&addr) && getcnt(&count) ) {
- fseek(stdout,addr+HDR_LENGTH,0);
- while (count--) {
- putchar(getchar());
- if ( ferror(stdout) ) {
- fprintf(stderr,"%s: write error\n",prog) ;
- unlink(argv[2]) ; /* remove the output */
- exit(2) ;
- }
- addr++;
- }
- if (addr>maxaddr)
- maxaddr = addr;
- }
- sethdr(0,0410L) ; /* Magic */
- sethdr(8,maxaddr) ;
- fseek(stdout,0L,0);
- fwrite(hdr,sizeof(hdr),1,stdout);
- if ( ferror(stdout) ) {
- fprintf(stderr,"%s: write error\n",prog) ;
- unlink(argv[2]) ; /* remove the output */
- exit(2) ;
+
+ /* Action at last */
+ fseek(output,(long) HDRSIZE,0);
+ emits(&outsect[TEXTSG]) ;
+ emits(&outsect[ROMSG]) ;
+ emits(&outsect[DATASG]) ;
+ fseek(output,0L,0);
+ sethdr(0, (long) magic);
+ sethdr(4, textsize);
+ sethdr(8, datasize);
+ sethdr(12, bsssize);
+ writef(hdr, 1, 40);
+ if ( ferror(output) ) {
+ fatal("output write error\n") ;
}
- chmod(argv[2],0755);
+ if ( outputfile_created ) chmod(argv[2],0755);
return 0;
}
-getaddr(p_addr) long *p_addr ; {
- char in[4] ;
- short out[4] ;
- int i ;
- switch ( fread(in,1,4,stdin) ) {
- case 0 : return 0 ;
- case 4 : break ;;
- default : fprintf(stderr,"%s: Illegal input format\n",prog) ;
- return 0 ;
- }
- switch ( flag ) {
- case 0 : *p_addr = *((long *)in) ;
- return 1 ;
- case 'v' :
- out[0]=in[0] ; out[1]=in[1] ;
- out[2]=in[2] ; out[3]=in[3] ;
- break ;
- case 'm' :
- out[0]=in[3] ; out[1]=in[2] ;
- out[2]=in[1] ; out[3]=in[0] ;
- break ;
- case 'p' :
- out[0]=in[2] ; out[1]=in[3] ;
- out[2]=in[0] ; out[3]=in[1] ;
- break ;
- default :
- fprintf(stderr,"%s: Unknown conversion %c(%o)\n",
- prog,flag,flag) ;
- exit(-1) ;
- }
- for ( i=0 ; i<4 ; i++ ) out[i] &= 0xFF ;
- *p_addr = 256 * ( 256 * ( 256 * out[3] + out[2] ) + out[1] ) + out[0];
- return 1 ;
+sethdr(off,val) long val ; {
+ hdr[off] = val>>24 ;
+ hdr[off+1] = val>>16 ;
+ hdr[off+2] = val>>8 ;
+ hdr[off+3] = val ;
}
-getcnt(p_cnt) short *p_cnt ; {
- char in[2] ;
- short out[2] ;
- int i ;
+/*
+ * Transfer the emitted byted from one file to another.
+ */
+emits(section) struct outsect *section ; {
+ char *p;
+ char *calloc();
+ long length = section->os_size;
- switch ( fread(in,1,2,stdin) ) {
- case 2 : break ;;
- default : fprintf(stderr,"%s: Illegal input format\n",prog) ;
- return 0 ;
- }
- switch ( flag ) {
- case 0 : *p_cnt = *((short *)in) ;
- return 1 ;
- case 'v' :
- case 'p' :
- out[0]=in[0] ; out[1]=in[1] ;
- break ;
- case 'm' :
- out[0]=in[1] ; out[1]=in[0] ;
- break ;
- default :
- fprintf(stderr,"%s: Unknown conversion %c(%o)\n",
- prog,flag,flag) ;
- exit(-1) ;
+ rd_outsect(section - outsect);
+ while (section->os_size > 0) {
+ int i = section->os_size > 10*1024 ? 10*1024 : section->os_size;
+
+ section->os_size -= i;
+ if (!(p = calloc(i, 1))) {
+ fatal("No memory.\n");
+ }
+ rd_emit(p, i >= section->os_flen ? section->os_flen:(long) i);
+ section->os_flen -= i;
+ writef(p, 1, i);
+ free(p);
}
- for ( i=0 ; i<2 ; i++ ) out[i] &= 0xFF ;
- *p_cnt = 256 * out[1] + out[0] ;
- return 1 ;
}
-sethdr(off,val) long val ; {
- hdr[off] = val>>24 ;
- hdr[off+1] = val>>16 ;
- hdr[off+2] = val>>8 ;
- hdr[off+3] = val ;
+/* VARARGS1 */
+fatal(s, a1, a2)
+ char *s;
+{
+ fprintf(stderr,"%s: ",program) ;
+ fprintf(stderr, s, a1, a2);
+ if (outputfile_created)
+ unlink(output_file);
+ exit(-1);
}
+
+rd_fatal() { fatal("read error.\n"); }
public / ack.git / commitdiff