532 lines
14 KiB
C
532 lines
14 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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* @(#)targ.c 8.2 (Berkeley) 3/19/94
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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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 <string.h>
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#include "dir.h"
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#include "globals.h"
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#include "GNode.h"
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#include "hash.h"
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#include "make.h"
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#include "suff.h"
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#include "targ.h"
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#include "util.h"
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#include "var.h"
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/* the list of all targets found so far */
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static Lst allTargets = Lst_Initializer(allTargets);
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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(void)
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{
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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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* The gnode is added to the list of all gnodes.
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*-----------------------------------------------------------------------
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*/
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GNode *
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Targ_NewGN(const char *name)
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{
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GNode *gn;
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gn = emalloc(sizeof(GNode));
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gn->name = estrdup(name);
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gn->path = NULL;
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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->order = 0;
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gn->mtime = gn->cmtime = 0;
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Lst_Init(&gn->iParents);
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Lst_Init(&gn->cohorts);
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Lst_Init(&gn->parents);
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Lst_Init(&gn->children);
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Lst_Init(&gn->successors);
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Lst_Init(&gn->preds);
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Lst_Init(&gn->context);
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Lst_Init(&gn->commands);
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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 NULL 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(const char *name, int flags)
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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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Lst_AtEnd(&allTargets, 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 == NULL) {
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return (NULL);
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} else {
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return (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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void
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Targ_FindList(Lst *nodes, Lst *names, int flags)
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{
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LstNode *ln; /* name list element */
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GNode *gn; /* node in tLn */
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char *name;
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for (ln = Lst_First(names); ln != NULL; ln = Lst_Succ(ln)) {
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name = Lst_Datum(ln);
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gn = Targ_FindNode(name, flags);
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if (gn != NULL) {
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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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Lst_AtEnd(nodes, gn);
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if (gn->type & OP_DOUBLEDEP) {
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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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}
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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(GNode *gn)
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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(GNode *gn)
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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(GNode *gn)
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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(GNode *gn)
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{
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mainTarg = gn;
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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_t modtime)
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{
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struct tm *parts;
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static char buf[128];
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parts = localtime(&modtime);
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strftime(buf, sizeof(buf), "%H:%M:%S %b %d, %Y", parts);
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buf[sizeof(buf) - 1] = '\0';
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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(int type)
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{
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int tbit;
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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): DEBUGF(TARG, ("." #attr " ")); break
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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: DEBUGF(TARG, (".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(const GNode *gn, int pass)
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{
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const LstNode *tln;
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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(tln, &gn->iParents)
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printf("%s ", ((const GNode *)Lst_Datum(tln))->name);
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printf("\n");
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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(tln, &gn->parents)
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printf("%s ", ((const GNode *)Lst_Datum(tln))->name);
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printf("\n");
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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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default:
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break;
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}
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Targ_PrintType(gn->type);
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LST_FOREACH(tln, &gn->children)
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printf("%s ", ((const GNode *)Lst_Datum(tln))->name);
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printf("\n");
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LST_FOREACH(tln, &gn->commands)
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printf("\t%s\n", (const char *)Lst_Datum(tln));
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printf("\n\n");
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if (gn->type & OP_DOUBLEDEP) {
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LST_FOREACH(tln, &gn->cohorts)
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TargPrintNode((const GNode *)Lst_Datum(tln), 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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* Targ_PrintGraph --
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* Print the entire graph.
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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(int pass)
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{
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const GNode *gn;
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const LstNode *tln;
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printf("#*** Input graph:\n");
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LST_FOREACH(tln, &allTargets)
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TargPrintNode((const GNode *)Lst_Datum(tln), 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(tln, &allTargets) {
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gn = Lst_Datum(tln);
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if (OP_NOP(gn->type))
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printf("#\t%s [%s]\n", gn->name, gn->path ? gn->path : gn->name);
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}
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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");
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Var_Dump(VAR_CMD);
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printf("\n");
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Dir_PrintDirectories();
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printf("\n");
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Suff_PrintAll();
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}
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