153 lines
3.1 KiB
C
153 lines
3.1 KiB
C
/* $Id$ */
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/*
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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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/* MAIN PROGRAM */
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#include <stdlib.h>
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#include <alloc.h>
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#include <em_arith.h>
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#include <assert.h>
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#include <system.h>
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#include "file_info.h"
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#include "idfsize.h"
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#include "idf.h"
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#include "macro.h"
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extern char *symbol2str();
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extern char *getwdir();
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extern int err_occurred;
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extern int do_dependencies;
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extern char *dep_file;
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int idfsize = IDFSIZE;
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extern char options[];
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static File *dep_fd = STDOUT;
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arith ifval;
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char *prog_name;
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extern char **inctable;
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extern int inc_max, inc_total;
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main(argc, argv)
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char *argv[];
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{
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/* parse and interpret the command line options */
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prog_name = argv[0];
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init_idf();
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inctable = (char **) Malloc(10 * sizeof(char *));
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inc_max = 10;
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inc_total = 3;
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inctable[0] = "";
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inctable[1] = "/usr/include";
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inctable[2] = 0;
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init_pp(); /* initialise the preprocessor macros */
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/* Note: source file "-" indicates that the source is supplied
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as standard input. This is only allowed if INP_READ_IN_ONE is
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not defined!
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*/
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while (argc > 1 && *argv[1] == '-' && argv[1][1] != '\0') {
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char *par = &argv[1][1];
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if (*par == '-')
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par++;
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do_option(par);
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argc--, argv++;
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}
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compile(argc - 1, &argv[1]);
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exit(err_occurred);
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}
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compile(argc, argv)
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char *argv[];
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{
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register char *source = 0;
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char *dummy;
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switch (argc) {
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case 1:
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source = argv[0];
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FileName = source;
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break;
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case 0:
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FileName = "";
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WorkingDir = "";
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break;
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default:
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FileName = argv[0];
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fatal("use: %s [options] [source]", prog_name);
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break;
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}
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if (!InsertFile(source, (char **) 0, &dummy)) /* read the source file */
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fatal("%s: no source file %s", prog_name,
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source ? source : "stdin");
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if (source) WorkingDir = getwdir(dummy);
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preprocess(source);
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if (do_dependencies) list_dependencies(source);
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}
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struct idf *file_head;
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extern char *strrindex();
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list_dependencies(source)
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char *source;
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{
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register struct idf *p = file_head;
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if (source) {
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register char *s = strrindex(source, '.');
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if (s && *(s+1)) {
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s++;
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*s++ = 'o';
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*s = '\0';
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/* the source may be in another directory than the
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* object generated, so don't include the pathname
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* leading to it.
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*/
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if (s = strrindex(source, '/')) {
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source = s + 1;
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}
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}
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else source = 0;
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}
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if (dep_file && !sys_open(dep_file, OP_WRITE, &dep_fd)) {
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fatal("could not open %s", dep_file);
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}
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while (p) {
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assert(p->id_resmac == K_FILE);
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dependency(p->id_text, source);
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p = p->id_file;
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}
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}
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add_dependency(s)
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char *s;
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{
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register struct idf *p = str2idf(s, 0);
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if (! p->id_resmac) {
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p->id_resmac = K_FILE;
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p->id_file = file_head;
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file_head = p;
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}
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}
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dependency(s, source)
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char *s, *source;
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{
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if (options['i'] && !strncmp(s, "/usr/include/", 13)) {
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return;
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}
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if (options['m'] && source) {
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fprint(dep_fd, "%s: %s\n", source, s);
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}
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else fprint(dep_fd, "%s\n", s);
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}
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