1993-03-10 20:24:57 +00:00
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/* Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993
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Free Software Foundation, Inc.
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1992-01-11 11:37:36 +00:00
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This file is part of GNU Make.
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GNU Make is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Make is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Make; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "make.h"
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#include "commands.h"
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#include "dep.h"
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#include "file.h"
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#include "variable.h"
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/* Hash table of files the makefile knows how to make. */
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#ifndef FILE_BUCKETS
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#define FILE_BUCKETS 1007
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#endif
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static struct file *files[FILE_BUCKETS];
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/* Number of files with the `intermediate' flag set. */
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unsigned int num_intermediates = 0;
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/* Access the hash table of all file records.
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lookup_file given a name, return the struct file * for that name,
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or nil if there is none.
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enter_file similar, but create one if there is none. */
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struct file *
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lookup_file (name)
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char *name;
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{
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register struct file *f;
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register char *n;
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register unsigned int hashval;
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if (*name == '\0')
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abort ();
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1992-10-12 18:04:07 +00:00
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/* This is also done in parse_file_seq, so this is redundant
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for names read from makefiles. It is here for names passed
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on the command line. */
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1992-01-11 11:37:36 +00:00
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while (name[0] == '.' && name[1] == '/' && name[2] != '\0')
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1992-10-12 18:04:07 +00:00
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{
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name += 2;
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while (*name == '/')
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/* Skip following slashes: ".//foo" is "foo", not "/foo". */
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++name;
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}
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if (*name == '\0')
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/* It was all slashes after a dot. */
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name = "./";
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1992-01-11 11:37:36 +00:00
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hashval = 0;
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for (n = name; *n != '\0'; ++n)
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HASH (hashval, *n);
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hashval %= FILE_BUCKETS;
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for (f = files[hashval]; f != 0; f = f->next)
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if (streq (f->name, name))
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return f;
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return 0;
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}
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struct file *
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enter_file (name)
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char *name;
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{
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register struct file *f, *new;
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register char *n;
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register unsigned int hashval;
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if (*name == '\0')
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abort ();
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hashval = 0;
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for (n = name; *n != '\0'; ++n)
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HASH (hashval, *n);
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hashval %= FILE_BUCKETS;
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for (f = files[hashval]; f != 0; f = f->next)
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if (streq (f->name, name))
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break;
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if (f != 0 && !f->double_colon)
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return f;
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new = (struct file *) xmalloc (sizeof (struct file));
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bzero ((char *) new, sizeof (struct file));
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new->name = name;
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new->update_status = -1;
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if (f == 0)
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{
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/* This is a completely new file. */
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new->next = files[hashval];
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files[hashval] = new;
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}
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else
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{
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/* There is already a double-colon entry for this file. */
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while (f->prev != 0)
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f = f->prev;
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f->prev = new;
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}
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return new;
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}
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/* Rename FILE to NAME. This is not as simple as resetting
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the `name' member, since it must be put in a new hash bucket,
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and possibly merged with an existing file called NAME. */
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void
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rename_file (file, name)
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register struct file *file;
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char *name;
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{
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char *oldname = file->name;
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1992-08-02 10:16:54 +00:00
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register unsigned int oldhash;
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1992-01-11 11:37:36 +00:00
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register char *n;
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1992-04-01 09:58:26 +00:00
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while (file->renamed != 0)
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file = file->renamed;
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1992-01-11 11:37:36 +00:00
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/* Find the hash values of the old and new names. */
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oldhash = 0;
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for (n = oldname; *n != '\0'; ++n)
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HASH (oldhash, *n);
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1992-08-27 22:06:44 +00:00
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file_hash_enter (file, name, oldhash, file->name);
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1992-08-02 10:16:54 +00:00
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}
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void
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1992-08-02 11:28:04 +00:00
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file_hash_enter (file, name, oldhash, oldname)
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1992-08-02 10:16:54 +00:00
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register struct file *file;
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char *name;
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unsigned int oldhash;
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1992-08-02 11:28:04 +00:00
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char *oldname;
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1992-08-02 10:16:54 +00:00
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{
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1993-03-10 20:24:57 +00:00
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unsigned int oldbucket = oldhash % FILE_BUCKETS;
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register unsigned int newhash, newbucket;
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1992-08-02 10:16:54 +00:00
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struct file *oldfile;
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register char *n;
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register struct file *f;
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1992-01-11 11:37:36 +00:00
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newhash = 0;
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for (n = name; *n != '\0'; ++n)
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HASH (newhash, *n);
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1993-03-10 20:24:57 +00:00
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newbucket = newhash % FILE_BUCKETS;
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1992-01-11 11:37:36 +00:00
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/* Look for an existing file under the new name. */
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1993-03-10 20:24:57 +00:00
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for (oldfile = files[newbucket]; oldfile != 0; oldfile = oldfile->next)
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1992-01-11 11:37:36 +00:00
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if (streq (oldfile->name, name))
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break;
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1993-03-10 20:24:57 +00:00
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if (oldhash != 0 && (newbucket != oldbucket || oldfile != 0))
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1992-01-11 11:37:36 +00:00
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{
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/* Remove FILE from its hash bucket. */
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struct file *lastf = 0;
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1993-03-10 20:24:57 +00:00
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for (f = files[oldbucket]; f != file; f = f->next)
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1992-01-11 11:37:36 +00:00
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lastf = f;
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if (lastf == 0)
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1993-03-10 20:24:57 +00:00
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files[oldbucket] = f->next;
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1992-01-11 11:37:36 +00:00
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else
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lastf->next = f->next;
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}
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/* Give FILE its new name. */
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for (f = file; f != 0; f = f->prev)
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f->name = name;
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if (oldfile == 0)
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{
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/* There is no existing file with the new name. */
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1993-03-10 20:24:57 +00:00
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if (newbucket != oldbucket)
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1992-01-11 11:37:36 +00:00
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{
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/* Put FILE in its new hash bucket. */
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1993-03-10 20:24:57 +00:00
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file->next = files[newbucket];
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files[newbucket] = file;
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1992-01-11 11:37:36 +00:00
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}
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}
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else
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{
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/* There is an existing file with the new name.
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We must merge FILE into the existing file. */
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register struct dep *d;
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if (file->cmds != 0)
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{
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if (oldfile->cmds == 0)
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oldfile->cmds = file->cmds;
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else if (file->cmds != oldfile->cmds)
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{
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/* We have two sets of commands. We will go with the
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one given in the rule explicitly mentioning this name,
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but give a message to let the user know what's going on. */
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1992-11-04 01:44:30 +00:00
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if (oldfile->cmds->filename != 0)
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makefile_error (file->cmds->filename, file->cmds->lineno,
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"Commands were specified for \
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1992-08-02 10:16:54 +00:00
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file `%s' at %s:%u,",
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1992-11-04 01:44:30 +00:00
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oldname, oldfile->cmds->filename,
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oldfile->cmds->lineno);
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else
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makefile_error (file->cmds->filename, file->cmds->lineno,
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"Commands for file `%s' were found by \
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implicit rule search,",
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oldname);
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1992-01-11 11:37:36 +00:00
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makefile_error (file->cmds->filename, file->cmds->lineno,
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"but `%s' is now considered the same file \
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as `%s'.",
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1992-08-02 11:28:04 +00:00
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oldname, name);
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1992-01-11 11:37:36 +00:00
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makefile_error (file->cmds->filename, file->cmds->lineno,
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"Commands for `%s' will be ignored \
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in favor of those for `%s'.",
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1992-08-02 11:28:04 +00:00
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name, oldname);
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1992-01-11 11:37:36 +00:00
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}
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}
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/* Merge the dependencies of the two files. */
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d = oldfile->deps;
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if (d == 0)
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oldfile->deps = file->deps;
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else
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{
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while (d->next != 0)
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d = d->next;
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d->next = file->deps;
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}
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merge_variable_set_lists (&oldfile->variables, file->variables);
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if (oldfile->double_colon && !file->double_colon)
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fatal ("can't rename single-colon `%s' to double-colon `%s'",
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oldname, name);
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if (!oldfile->double_colon && file->double_colon)
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fatal ("can't rename double-colon `%s' to single-colon `%s'",
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oldname, name);
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if (file->last_mtime > oldfile->last_mtime)
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/* %%% Kludge so -W wins on a file that gets vpathized. */
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oldfile->last_mtime = file->last_mtime;
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#define MERGE(field) oldfile->field |= file->field
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MERGE (precious);
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MERGE (tried_implicit);
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MERGE (updating);
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MERGE (updated);
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MERGE (is_target);
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MERGE (cmd_target);
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MERGE (phony);
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#undef MERGE
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file->renamed = oldfile;
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}
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}
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/* Remove all nonprecious intermediate files.
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If SIG is nonzero, this was caused by a fatal signal,
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meaning that a different message will be printed, and
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the message will go to stderr rather than stdout. */
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void
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remove_intermediates (sig)
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int sig;
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{
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register int i;
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register struct file *f;
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char doneany;
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if (!sig && just_print_flag)
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return;
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doneany = 0;
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for (i = 0; i < FILE_BUCKETS; ++i)
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for (f = files[i]; f != 0; f = f->next)
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if (f->intermediate && (f->dontcare || !f->precious))
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{
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int status;
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if (just_print_flag)
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status = 0;
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else
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{
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status = unlink (f->name);
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if (status < 0 && errno == ENOENT)
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continue;
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}
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if (!f->dontcare)
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{
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if (sig)
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1993-06-30 22:11:36 +00:00
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error ("*** Deleting intermediate file `%s'", f->name);
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1992-06-23 22:42:43 +00:00
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else if (!silent_flag)
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1992-01-11 11:37:36 +00:00
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{
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1993-05-22 20:24:37 +00:00
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if (! doneany)
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1992-01-11 11:37:36 +00:00
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{
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|
|
|
|
fputs ("rm ", stdout);
|
|
|
|
|
doneany = 1;
|
|
|
|
|
}
|
1993-05-22 20:24:37 +00:00
|
|
|
|
else
|
|
|
|
|
putchar (' ');
|
1992-01-11 11:37:36 +00:00
|
|
|
|
fputs (f->name, stdout);
|
|
|
|
|
fflush (stdout);
|
|
|
|
|
}
|
|
|
|
|
if (status < 0)
|
|
|
|
|
perror_with_name ("unlink: ", f->name);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (doneany && !sig)
|
|
|
|
|
{
|
|
|
|
|
putchar ('\n');
|
|
|
|
|
fflush (stdout);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* For each dependency of each file, make the `struct dep' point
|
|
|
|
|
at the appropriate `struct file' (which may have to be created).
|
|
|
|
|
|
|
|
|
|
Also mark the files depended on by .PRECIOUS and .PHONY. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
snap_deps ()
|
|
|
|
|
{
|
|
|
|
|
register struct file *f, *f2;
|
|
|
|
|
register struct dep *d;
|
|
|
|
|
register int i;
|
|
|
|
|
|
|
|
|
|
/* Enter each dependency name as a file. */
|
|
|
|
|
for (i = 0; i < FILE_BUCKETS; ++i)
|
|
|
|
|
for (f = files[i]; f != 0; f = f->next)
|
|
|
|
|
for (f2 = f; f2 != 0; f2 = f2->prev)
|
|
|
|
|
for (d = f2->deps; d != 0; d = d->next)
|
|
|
|
|
if (d->name != 0)
|
|
|
|
|
{
|
|
|
|
|
d->file = lookup_file (d->name);
|
|
|
|
|
if (d->file == 0)
|
|
|
|
|
d->file = enter_file (d->name);
|
|
|
|
|
else
|
|
|
|
|
free (d->name);
|
|
|
|
|
d->name = 0;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
for (f = lookup_file (".PRECIOUS"); f != 0; f = f->prev)
|
|
|
|
|
for (d = f->deps; d != 0; d = d->next)
|
|
|
|
|
for (f2 = d->file; f2 != 0; f2 = f2->prev)
|
|
|
|
|
f2->precious = 1;
|
|
|
|
|
|
|
|
|
|
for (f = lookup_file (".PHONY"); f != 0; f = f->prev)
|
|
|
|
|
for (d = f->deps; d != 0; d = d->next)
|
|
|
|
|
for (f2 = d->file; f2 != 0; f2 = f2->prev)
|
|
|
|
|
{
|
|
|
|
|
/* Mark this file as phony and nonexistent. */
|
|
|
|
|
f2->phony = 1;
|
|
|
|
|
f2->last_mtime = (time_t) -1;
|
|
|
|
|
}
|
1992-06-04 03:52:53 +00:00
|
|
|
|
|
|
|
|
|
f = lookup_file (".EXPORT_ALL_VARIABLES");
|
|
|
|
|
if (f != 0 && f->is_target)
|
|
|
|
|
export_all_variables = 1;
|
1992-01-11 11:37:36 +00:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/* Print the data base of files. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
print_file_data_base ()
|
|
|
|
|
{
|
|
|
|
|
register unsigned int i, nfiles, per_bucket;
|
|
|
|
|
register struct file *file;
|
|
|
|
|
register struct dep *d;
|
|
|
|
|
|
|
|
|
|
puts ("\n# Files");
|
|
|
|
|
|
|
|
|
|
per_bucket = nfiles = 0;
|
|
|
|
|
for (i = 0; i < FILE_BUCKETS; ++i)
|
|
|
|
|
{
|
|
|
|
|
register unsigned int this_bucket = 0;
|
|
|
|
|
|
|
|
|
|
for (file = files[i]; file != 0; file = file->next)
|
|
|
|
|
{
|
|
|
|
|
register struct file *f;
|
|
|
|
|
|
|
|
|
|
++this_bucket;
|
|
|
|
|
|
|
|
|
|
for (f = file; f != 0; f = f->prev)
|
|
|
|
|
{
|
|
|
|
|
putchar ('\n');
|
|
|
|
|
if (!f->is_target)
|
|
|
|
|
puts ("# Not a target:");
|
|
|
|
|
printf ("%s:%s", f->name, f->double_colon ? ":" : "");
|
|
|
|
|
|
|
|
|
|
for (d = f->deps; d != 0; d = d->next)
|
|
|
|
|
printf (" %s", dep_name (d));
|
|
|
|
|
putchar ('\n');
|
|
|
|
|
|
|
|
|
|
if (f->precious)
|
|
|
|
|
puts ("# Precious file (dependency of .PRECIOUS).");
|
|
|
|
|
if (f->phony)
|
|
|
|
|
puts ("# Phony target (dependency of .PHONY).");
|
|
|
|
|
if (f->cmd_target)
|
|
|
|
|
puts ("# Command-line target.");
|
|
|
|
|
if (f->dontcare)
|
|
|
|
|
puts ("# A default or MAKEFILES makefile.");
|
|
|
|
|
printf ("# Implicit rule search has%s been done.\n",
|
|
|
|
|
f->tried_implicit ? "" : " not");
|
|
|
|
|
if (f->stem != 0)
|
|
|
|
|
printf ("# Implicit/static pattern stem: `%s'\n", f->stem);
|
|
|
|
|
if (f->intermediate)
|
|
|
|
|
puts ("# File is an intermediate dependency.");
|
|
|
|
|
if (f->also_make != 0)
|
|
|
|
|
{
|
|
|
|
|
fputs ("# Also makes:", stdout);
|
|
|
|
|
for (d = f->also_make; d != 0; d = d->next)
|
|
|
|
|
printf (" %s", dep_name (d));
|
|
|
|
|
putchar ('\n');
|
|
|
|
|
}
|
|
|
|
|
if (f->last_mtime == (time_t) 0)
|
|
|
|
|
puts ("# Modification time never checked.");
|
|
|
|
|
else if (f->last_mtime == (time_t) -1)
|
|
|
|
|
puts ("# File does not exist.");
|
|
|
|
|
else
|
|
|
|
|
printf ("# Last modified %.24s (%ld)\n",
|
|
|
|
|
ctime (&f->last_mtime), (long int) f->last_mtime);
|
|
|
|
|
printf ("# File has%s been updated.\n",
|
|
|
|
|
f->updated ? "" : " not");
|
|
|
|
|
switch (f->command_state)
|
|
|
|
|
{
|
|
|
|
|
case cs_running:
|
1992-06-15 16:39:11 +00:00
|
|
|
|
puts ("# Commands currently running (THIS IS A BUG).");
|
1992-01-11 11:37:36 +00:00
|
|
|
|
break;
|
|
|
|
|
case cs_deps_running:
|
1992-06-15 16:39:11 +00:00
|
|
|
|
puts ("# Dependencies commands running (THIS IS A BUG).");
|
1992-01-11 11:37:36 +00:00
|
|
|
|
break;
|
|
|
|
|
case cs_not_started:
|
|
|
|
|
case cs_finished:
|
|
|
|
|
switch (f->update_status)
|
|
|
|
|
{
|
|
|
|
|
case -1:
|
|
|
|
|
break;
|
|
|
|
|
case 0:
|
|
|
|
|
puts ("# Successfully updated.");
|
|
|
|
|
break;
|
|
|
|
|
case 1:
|
|
|
|
|
puts ("# Failed to be updated.");
|
|
|
|
|
break;
|
|
|
|
|
default:
|
|
|
|
|
puts ("# Invalid value in `update_status' member!");
|
|
|
|
|
fflush (stdout);
|
|
|
|
|
fflush (stderr);
|
|
|
|
|
abort ();
|
|
|
|
|
}
|
|
|
|
|
break;
|
|
|
|
|
default:
|
1992-06-16 23:43:35 +00:00
|
|
|
|
puts ("# Invalid value in `command_state' member!");
|
1992-01-11 11:37:36 +00:00
|
|
|
|
fflush (stdout);
|
|
|
|
|
fflush (stderr);
|
|
|
|
|
abort ();
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (f->variables != 0)
|
|
|
|
|
print_file_variables (file);
|
|
|
|
|
|
|
|
|
|
if (f->cmds != 0)
|
|
|
|
|
print_commands (f->cmds);
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
nfiles += this_bucket;
|
|
|
|
|
if (this_bucket > per_bucket)
|
|
|
|
|
per_bucket = this_bucket;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
if (nfiles == 0)
|
|
|
|
|
puts ("\n# No files.");
|
|
|
|
|
else
|
|
|
|
|
{
|
|
|
|
|
printf ("\n# %u files in %u hash buckets.\n", nfiles, FILE_BUCKETS);
|
|
|
|
|
#ifndef NO_FLOAT
|
|
|
|
|
printf ("# average %.1f files per bucket, max %u files in one bucket.\n",
|
|
|
|
|
((double) FILE_BUCKETS) / ((double) nfiles) * 100.0, per_bucket);
|
|
|
|
|
#endif
|
|
|
|
|
}
|
|
|
|
|
}
|