126 lines
2.4 KiB
C
126 lines
2.4 KiB
C
/*
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* (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
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* See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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#ifndef lint
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static char rcsid[] = "$Header$";
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#endif
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#include <out.h>
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#include <stdio.h>
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#include "const.h"
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#include "assert.h"
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#include "memory.h"
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extern struct outhead outhead;
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extern struct outsect outsect[];
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extern int flagword;
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extern bool incore;
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wr_fatal()
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{
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fatal("write error");
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}
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static long off_char;
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/*
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* Open the output file according to the chosen strategy.
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* Write away the header and section table: they will not change anymore.
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*/
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begin_write()
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{
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extern char *outputname;
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register struct outhead *hd = &outhead;
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assert(! incore);
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if (! wr_open(outputname)) {
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fatal("cannot write %s", outputname);
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}
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wr_ohead(hd);
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wr_sect(outsect, hd->oh_nsect);
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off_char = OFF_CHAR(*hd);
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}
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static struct outname *
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sectname(sectindex)
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int sectindex;
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{
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static struct outname namebuf;
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namebuf.on_foff = (long)0; /* No string name. */
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namebuf.on_type = (S_MIN + sectindex) | S_SCT;
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namebuf.on_desc = 0;
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namebuf.on_valu = outsect[sectindex].os_base;
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return &namebuf;
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}
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/*
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* Write out the symbol table and the section names.
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*/
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end_write()
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{
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register ushort cnt;
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register struct outname *name;
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register int sectindex;
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extern ushort NGlobals;
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assert(!incore);
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assert(!(flagword & SFLAG));
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cnt = NGlobals;
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name = (struct outname *)address(ALLOGLOB, (ind_t)0);
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while (cnt--) {
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if (name->on_foff != (long)0) {
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name->on_mptr = address(ALLOGCHR, (ind_t)name->on_foff);
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} else {
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name->on_mptr = (char *)0;
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}
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wrt_name(name);
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name++;
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}
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for (sectindex = 0; sectindex < outhead.oh_nsect; sectindex++)
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wrt_name(sectname(sectindex));
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}
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wrt_emit(emit, sectindex, cnt)
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char *emit;
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int sectindex;
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long cnt;
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{
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wr_outsect(sectindex);
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wr_emit(emit, cnt);
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}
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wrt_nulls(sectindex, cnt)
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register long cnt;
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{
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static char nullbuf[BUFSIZ];
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wr_outsect(sectindex);
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while (cnt) {
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register int n = cnt >= BUFSIZ ? BUFSIZ : cnt;
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wr_emit(nullbuf, (long)n);
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cnt -= n;
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}
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}
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wrt_name(name)
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register struct outname *name;
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{
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assert(!incore);
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assert(!(flagword & SFLAG));
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if (name->on_mptr != (char *)0) {
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register long len = strlen(name->on_mptr) + 1;
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wr_string(name->on_mptr, len);
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name->on_foff = off_char;
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off_char += len;
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} else {
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name->on_foff = (long)0;
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}
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wr_name(name, 1);
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}
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