586 lines
16 KiB
C
586 lines
16 KiB
C
/*
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* Copyright (c) 1988, 1989, 1990, 1993
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* The Regents of the University of California. All rights reserved.
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* Copyright (c) 1989 by Berkeley Softworks
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Adam de Boor.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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static char sccsid[] = "@(#)targ.c 8.2 (Berkeley) 3/19/94";
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#endif /* not lint */
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/*-
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* targ.c --
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* Functions for maintaining the Lst allTargets. Target nodes are
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* kept in two structures: a Lst, maintained by the list library, and a
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* hash table, maintained by the hash library.
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*
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* Interface:
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* Targ_Init Initialization procedure.
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*
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* Targ_NewGN Create a new GNode for the passed target
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* (string). The node is *not* placed in the
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* hash table, though all its fields are
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* initialized.
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*
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* Targ_FindNode Find the node for a given target, creating
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* and storing it if it doesn't exist and the
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* flags are right (TARG_CREATE)
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*
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* Targ_FindList Given a list of names, find nodes for all
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* of them. If a name doesn't exist and the
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* TARG_NOCREATE flag was given, an error message
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* is printed. Else, if a name doesn't exist,
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* its node is created.
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*
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* Targ_Ignore Return TRUE if errors should be ignored when
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* creating the given target.
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*
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* Targ_Silent Return TRUE if we should be silent when
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* creating the given target.
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*
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* Targ_Precious Return TRUE if the target is precious and
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* should not be removed if we are interrupted.
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*
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* Debugging:
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* Targ_PrintGraph Print out the entire graphm all variables
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* and statistics for the directory cache. Should
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* print something for suffixes, too, but...
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*/
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#include <stdio.h>
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#include <time.h>
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#include "make.h"
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#include "hash.h"
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#include "dir.h"
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static Lst allTargets; /* the list of all targets found so far */
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static Hash_Table targets; /* a hash table of same */
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#define HTSIZE 191 /* initial size of hash table */
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/*-
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*-----------------------------------------------------------------------
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* Targ_Init --
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* Initialize this module
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*
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* Results:
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* None
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*
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* Side Effects:
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* The allTargets list and the targets hash table are initialized
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*-----------------------------------------------------------------------
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*/
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void
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Targ_Init ()
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{
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allTargets = Lst_Init (FALSE);
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Hash_InitTable (&targets, HTSIZE);
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}
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/*-
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*-----------------------------------------------------------------------
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* Targ_NewGN --
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* Create and initialize a new graph node
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*
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* Results:
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* An initialized graph node with the name field filled with a copy
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* of the passed name
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*
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* Side Effects:
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* None.
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*-----------------------------------------------------------------------
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*/
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GNode *
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Targ_NewGN (name)
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char *name; /* the name to stick in the new node */
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{
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register GNode *gn;
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gn = (GNode *) emalloc (sizeof (GNode));
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gn->name = strdup (name);
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gn->path = (char *) 0;
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if (name[0] == '-' && name[1] == 'l') {
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gn->type = OP_LIB;
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} else {
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gn->type = 0;
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}
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gn->unmade = 0;
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gn->make = FALSE;
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gn->made = UNMADE;
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gn->childMade = FALSE;
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gn->mtime = gn->cmtime = 0;
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gn->iParents = Lst_Init (FALSE);
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gn->cohorts = Lst_Init (FALSE);
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gn->parents = Lst_Init (FALSE);
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gn->children = Lst_Init (FALSE);
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gn->successors = Lst_Init(FALSE);
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gn->preds = Lst_Init(FALSE);
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gn->context = Lst_Init (FALSE);
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gn->commands = Lst_Init (FALSE);
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gn->suffix = NULL;
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return (gn);
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}
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/*-
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*-----------------------------------------------------------------------
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* Targ_FindNode --
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* Find a node in the list using the given name for matching
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*
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* Results:
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* The node in the list if it was. If it wasn't, return NILGNODE of
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* flags was TARG_NOCREATE or the newly created and initialized node
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* if it was TARG_CREATE
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*
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* Side Effects:
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* Sometimes a node is created and added to the list
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*-----------------------------------------------------------------------
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*/
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GNode *
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Targ_FindNode (name, flags)
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char *name; /* the name to find */
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int flags; /* flags governing events when target not
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* found */
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{
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GNode *gn; /* node in that element */
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Hash_Entry *he; /* New or used hash entry for node */
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Boolean isNew; /* Set TRUE if Hash_CreateEntry had to create */
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/* an entry for the node */
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if (flags & TARG_CREATE) {
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he = Hash_CreateEntry (&targets, name, &isNew);
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if (isNew) {
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gn = Targ_NewGN (name);
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Hash_SetValue (he, gn);
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(void) Lst_AtEnd (allTargets, (ClientData)gn);
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}
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} else {
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he = Hash_FindEntry (&targets, name);
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}
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if (he == (Hash_Entry *) NULL) {
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return (NILGNODE);
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} else {
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return ((GNode *) Hash_GetValue (he));
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}
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}
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/*-
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*-----------------------------------------------------------------------
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* Targ_FindList --
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* Make a complete list of GNodes from the given list of names
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*
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* Results:
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* A complete list of graph nodes corresponding to all instances of all
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* the names in names.
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*
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* Side Effects:
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* If flags is TARG_CREATE, nodes will be created for all names in
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* names which do not yet have graph nodes. If flags is TARG_NOCREATE,
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* an error message will be printed for each name which can't be found.
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* -----------------------------------------------------------------------
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*/
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Lst
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Targ_FindList (names, flags)
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Lst names; /* list of names to find */
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int flags; /* flags used if no node is found for a given
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* name */
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{
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Lst nodes; /* result list */
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register LstNode ln; /* name list element */
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register GNode *gn; /* node in tLn */
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char *name;
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nodes = Lst_Init (FALSE);
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if (Lst_Open (names) == FAILURE) {
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return (nodes);
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}
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while ((ln = Lst_Next (names)) != NILLNODE) {
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name = (char *)Lst_Datum(ln);
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gn = Targ_FindNode (name, flags);
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if (gn != NILGNODE) {
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/*
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* Note: Lst_AtEnd must come before the Lst_Concat so the nodes
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* are added to the list in the order in which they were
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* encountered in the makefile.
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*/
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(void) Lst_AtEnd (nodes, (ClientData)gn);
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if (gn->type & OP_DOUBLEDEP) {
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(void)Lst_Concat (nodes, gn->cohorts, LST_CONCNEW);
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}
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} else if (flags == TARG_NOCREATE) {
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Error ("\"%s\" -- target unknown.", name);
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}
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}
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Lst_Close (names);
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return (nodes);
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}
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/*-
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*-----------------------------------------------------------------------
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* Targ_Ignore --
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* Return true if should ignore errors when creating gn
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*
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* Results:
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* TRUE if should ignore errors
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*
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* Side Effects:
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* None
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*-----------------------------------------------------------------------
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*/
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Boolean
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Targ_Ignore (gn)
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GNode *gn; /* node to check for */
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{
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if (ignoreErrors || gn->type & OP_IGNORE) {
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return (TRUE);
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} else {
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return (FALSE);
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}
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}
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/*-
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*-----------------------------------------------------------------------
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* Targ_Silent --
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* Return true if be silent when creating gn
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*
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* Results:
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* TRUE if should be silent
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*
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* Side Effects:
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* None
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*-----------------------------------------------------------------------
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*/
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Boolean
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Targ_Silent (gn)
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GNode *gn; /* node to check for */
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{
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if (beSilent || gn->type & OP_SILENT) {
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return (TRUE);
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} else {
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return (FALSE);
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}
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}
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/*-
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*-----------------------------------------------------------------------
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* Targ_Precious --
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* See if the given target is precious
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*
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* Results:
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* TRUE if it is precious. FALSE otherwise
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*
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* Side Effects:
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* None
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*-----------------------------------------------------------------------
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*/
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Boolean
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Targ_Precious (gn)
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GNode *gn; /* the node to check */
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{
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if (allPrecious || (gn->type & (OP_PRECIOUS|OP_DOUBLEDEP))) {
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return (TRUE);
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} else {
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return (FALSE);
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}
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}
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/******************* DEBUG INFO PRINTING ****************/
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static GNode *mainTarg; /* the main target, as set by Targ_SetMain */
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/*-
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*-----------------------------------------------------------------------
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* Targ_SetMain --
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* Set our idea of the main target we'll be creating. Used for
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* debugging output.
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*
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* Results:
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* None.
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*
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* Side Effects:
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* "mainTarg" is set to the main target's node.
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*-----------------------------------------------------------------------
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*/
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void
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Targ_SetMain (gn)
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GNode *gn; /* The main target we'll create */
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{
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mainTarg = gn;
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}
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static int
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/*ARGSUSED*/
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TargPrintName (gn, ppath)
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GNode *gn;
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int ppath;
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{
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printf ("%s ", gn->name);
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#ifdef notdef
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if (ppath) {
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if (gn->path) {
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printf ("[%s] ", gn->path);
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}
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if (gn == mainTarg) {
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printf ("(MAIN NAME) ");
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}
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}
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#endif /* notdef */
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return (0);
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}
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int
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Targ_PrintCmd (cmd)
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char *cmd;
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{
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printf ("\t%s\n", cmd);
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return (0);
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}
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/*-
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*-----------------------------------------------------------------------
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* Targ_FmtTime --
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* Format a modification time in some reasonable way and return it.
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*
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* Results:
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* The time reformatted.
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*
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* Side Effects:
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* The time is placed in a static area, so it is overwritten
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* with each call.
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*
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*-----------------------------------------------------------------------
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*/
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char *
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Targ_FmtTime (time)
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time_t time;
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{
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struct tm *parts;
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static char buf[40];
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static char *months[] = {
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"Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
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};
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parts = localtime(&time);
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sprintf (buf, "%d:%02d:%02d %s %d, 19%d",
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parts->tm_hour, parts->tm_min, parts->tm_sec,
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months[parts->tm_mon], parts->tm_mday, parts->tm_year);
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return(buf);
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}
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/*-
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*-----------------------------------------------------------------------
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* Targ_PrintType --
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* Print out a type field giving only those attributes the user can
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* set.
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*
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* Results:
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*
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* Side Effects:
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*
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*-----------------------------------------------------------------------
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*/
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void
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Targ_PrintType (type)
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register int type;
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{
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register int tbit;
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#ifdef __STDC__
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#define PRINTBIT(attr) case CONCAT(OP_,attr): printf("." #attr " "); break
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#define PRINTDBIT(attr) case CONCAT(OP_,attr): if (DEBUG(TARG)) printf("." #attr " "); break
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#else
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#define PRINTBIT(attr) case CONCAT(OP_,attr): printf(".attr "); break
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#define PRINTDBIT(attr) case CONCAT(OP_,attr): if (DEBUG(TARG)) printf(".attr "); break
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#endif /* __STDC__ */
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type &= ~OP_OPMASK;
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while (type) {
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tbit = 1 << (ffs(type) - 1);
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type &= ~tbit;
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switch(tbit) {
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PRINTBIT(OPTIONAL);
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PRINTBIT(USE);
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PRINTBIT(EXEC);
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PRINTBIT(IGNORE);
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PRINTBIT(PRECIOUS);
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PRINTBIT(SILENT);
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PRINTBIT(MAKE);
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PRINTBIT(JOIN);
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PRINTBIT(INVISIBLE);
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PRINTBIT(NOTMAIN);
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PRINTDBIT(LIB);
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/*XXX: MEMBER is defined, so CONCAT(OP_,MEMBER) gives OP_"%" */
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case OP_MEMBER: if (DEBUG(TARG)) printf(".MEMBER "); break;
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PRINTDBIT(ARCHV);
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}
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}
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}
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/*-
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*-----------------------------------------------------------------------
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* TargPrintNode --
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* print the contents of a node
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*-----------------------------------------------------------------------
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*/
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static int
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TargPrintNode (gn, pass)
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GNode *gn;
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int pass;
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{
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if (!OP_NOP(gn->type)) {
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printf("#\n");
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if (gn == mainTarg) {
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printf("# *** MAIN TARGET ***\n");
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}
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if (pass == 2) {
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if (gn->unmade) {
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printf("# %d unmade children\n", gn->unmade);
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} else {
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printf("# No unmade children\n");
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}
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if (! (gn->type & (OP_JOIN|OP_USE|OP_EXEC))) {
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if (gn->mtime != 0) {
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printf("# last modified %s: %s\n",
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Targ_FmtTime(gn->mtime),
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(gn->made == UNMADE ? "unmade" :
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(gn->made == MADE ? "made" :
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(gn->made == UPTODATE ? "up-to-date" :
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"error when made"))));
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} else if (gn->made != UNMADE) {
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printf("# non-existent (maybe): %s\n",
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(gn->made == MADE ? "made" :
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(gn->made == UPTODATE ? "up-to-date" :
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(gn->made == ERROR ? "error when made" :
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"aborted"))));
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} else {
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printf("# unmade\n");
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}
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}
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if (!Lst_IsEmpty (gn->iParents)) {
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printf("# implicit parents: ");
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Lst_ForEach (gn->iParents, TargPrintName, (ClientData)0);
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fputc ('\n', stdout);
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}
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}
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if (!Lst_IsEmpty (gn->parents)) {
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printf("# parents: ");
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Lst_ForEach (gn->parents, TargPrintName, (ClientData)0);
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fputc ('\n', stdout);
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}
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printf("%-16s", gn->name);
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switch (gn->type & OP_OPMASK) {
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case OP_DEPENDS:
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printf(": "); break;
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case OP_FORCE:
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printf("! "); break;
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case OP_DOUBLEDEP:
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printf(":: "); break;
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}
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Targ_PrintType (gn->type);
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Lst_ForEach (gn->children, TargPrintName, (ClientData)0);
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fputc ('\n', stdout);
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Lst_ForEach (gn->commands, Targ_PrintCmd, (ClientData)0);
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printf("\n\n");
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if (gn->type & OP_DOUBLEDEP) {
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Lst_ForEach (gn->cohorts, TargPrintNode, (ClientData)pass);
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}
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}
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return (0);
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}
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/*-
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*-----------------------------------------------------------------------
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* TargPrintOnlySrc --
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* Print only those targets that are just a source.
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*
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* Results:
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* 0.
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*
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* Side Effects:
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* The name of each file is printed preceeded by #\t
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*
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*-----------------------------------------------------------------------
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*/
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static int
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TargPrintOnlySrc(gn)
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GNode *gn;
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{
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if (OP_NOP(gn->type)) {
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printf("#\t%s [%s]\n", gn->name,
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gn->path ? gn->path : gn->name);
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}
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return (0);
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}
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/*-
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*-----------------------------------------------------------------------
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* Targ_PrintGraph --
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* print the entire graph. heh heh
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*
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* Results:
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* none
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*
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* Side Effects:
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* lots o' output
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*-----------------------------------------------------------------------
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*/
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void
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Targ_PrintGraph (pass)
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int pass; /* Which pass this is. 1 => no processing
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* 2 => processing done */
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{
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printf("#*** Input graph:\n");
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Lst_ForEach (allTargets, TargPrintNode, (ClientData)pass);
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printf("\n\n");
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printf("#\n# Files that are only sources:\n");
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|
Lst_ForEach (allTargets, TargPrintOnlySrc);
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|
printf("#*** Global Variables:\n");
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|
Var_Dump (VAR_GLOBAL);
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|
printf("#*** Command-line Variables:\n");
|
|
Var_Dump (VAR_CMD);
|
|
printf("\n");
|
|
Dir_PrintDirectories();
|
|
printf("\n");
|
|
Suff_PrintAll();
|
|
}
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