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e3cb529472
it to make.h so both dir.c and util.c can use it, although bde didn't particularly like this part of the idea, IMO it's cleaner than it was. Submitted by: bde
385 lines
15 KiB
C
385 lines
15 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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* from: @(#)make.h 8.3 (Berkeley) 6/13/95
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* $FreeBSD$
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*/
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/*-
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* make.h --
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* The global definitions for pmake
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*/
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#ifndef _MAKE_H_
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#define _MAKE_H_
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#include <sys/types.h>
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#include <stdio.h>
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#include <string.h>
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#include <ctype.h>
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#if !defined(MAKE_BOOTSTRAP) && defined(BSD4_4)
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# include <sys/cdefs.h>
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#else
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# ifndef __P
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# if defined(__STDC__) || defined(__cplusplus)
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# define __P(protos) protos /* full-blown ANSI C */
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# else
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# define __P(protos) () /* traditional C preprocessor */
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# endif
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# endif
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# ifndef __STDC__
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# ifndef const
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# define const
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# endif
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# ifndef volatile
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# define volatile
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# endif
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# endif
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#endif
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#ifdef __STDC__
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#include <stdlib.h>
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#include <unistd.h>
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#endif
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#include "sprite.h"
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#include "lst.h"
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#include "config.h"
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#include "buf.h"
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/*-
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* The structure for an individual graph node. Each node has several
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* pieces of data associated with it.
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* 1) the name of the target it describes
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* 2) the location of the target file in the file system.
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* 3) the type of operator used to define its sources (qv. parse.c)
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* 4) whether it is involved in this invocation of make
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* 5) whether the target has been remade
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* 6) whether any of its children has been remade
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* 7) the number of its children that are, as yet, unmade
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* 8) its modification time
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* 9) the modification time of its youngest child (qv. make.c)
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* 10) a list of nodes for which this is a source
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* 11) a list of nodes on which this depends
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* 12) a list of nodes that depend on this, as gleaned from the
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* transformation rules.
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* 13) a list of nodes of the same name created by the :: operator
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* 14) a list of nodes that must be made (if they're made) before
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* this node can be, but that do no enter into the datedness of
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* this node.
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* 15) a list of nodes that must be made (if they're made) after
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* this node is, but that do not depend on this node, in the
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* normal sense.
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* 16) a Lst of ``local'' variables that are specific to this target
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* and this target only (qv. var.c [$@ $< $?, etc.])
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* 17) a Lst of strings that are commands to be given to a shell
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* to create this target.
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*/
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typedef struct GNode {
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char *name; /* The target's name */
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char *path; /* The full pathname of the file */
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int type; /* Its type (see the OP flags, below) */
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int order; /* Its wait weight */
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Boolean make; /* TRUE if this target needs to be remade */
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enum {
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UNMADE, BEINGMADE, MADE, UPTODATE, ERROR, ABORTED,
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CYCLE, ENDCYCLE
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} made; /* Set to reflect the state of processing
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* on this node:
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* UNMADE - Not examined yet
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* BEINGMADE - Target is already being made.
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* Indicates a cycle in the graph. (compat
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* mode only)
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* MADE - Was out-of-date and has been made
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* UPTODATE - Was already up-to-date
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* ERROR - An error occured while it was being
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* made (used only in compat mode)
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* ABORTED - The target was aborted due to
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* an error making an inferior (compat).
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* CYCLE - Marked as potentially being part of
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* a graph cycle. If we come back to a
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* node marked this way, it is printed
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* and 'made' is changed to ENDCYCLE.
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* ENDCYCLE - the cycle has been completely
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* printed. Go back and unmark all its
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* members.
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*/
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Boolean childMade; /* TRUE if one of this target's children was
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* made */
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int unmade; /* The number of unmade children */
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int mtime; /* Its modification time */
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int cmtime; /* The modification time of its youngest
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* child */
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Lst iParents; /* Links to parents for which this is an
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* implied source, if any */
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Lst cohorts; /* Other nodes for the :: operator */
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Lst parents; /* Nodes that depend on this one */
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Lst children; /* Nodes on which this one depends */
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Lst successors; /* Nodes that must be made after this one */
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Lst preds; /* Nodes that must be made before this one */
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Lst context; /* The local variables */
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Lst commands; /* Creation commands */
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struct _Suff *suffix; /* Suffix for the node (determined by
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* Suff_FindDeps and opaque to everyone
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* but the Suff module) */
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} GNode;
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/*
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* The OP_ constants are used when parsing a dependency line as a way of
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* communicating to other parts of the program the way in which a target
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* should be made. These constants are bitwise-OR'ed together and
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* placed in the 'type' field of each node. Any node that has
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* a 'type' field which satisfies the OP_NOP function was never never on
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* the lefthand side of an operator, though it may have been on the
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* righthand side...
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*/
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#define OP_DEPENDS 0x00000001 /* Execution of commands depends on
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* kids (:) */
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#define OP_FORCE 0x00000002 /* Always execute commands (!) */
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#define OP_DOUBLEDEP 0x00000004 /* Execution of commands depends on kids
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* per line (::) */
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#define OP_OPMASK (OP_DEPENDS|OP_FORCE|OP_DOUBLEDEP)
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#define OP_OPTIONAL 0x00000008 /* Don't care if the target doesn't
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* exist and can't be created */
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#define OP_USE 0x00000010 /* Use associated commands for parents */
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#define OP_EXEC 0x00000020 /* Target is never out of date, but always
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* execute commands anyway. Its time
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* doesn't matter, so it has none...sort
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* of */
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#define OP_IGNORE 0x00000040 /* Ignore errors when creating the node */
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#define OP_PRECIOUS 0x00000080 /* Don't remove the target when
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* interrupted */
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#define OP_SILENT 0x00000100 /* Don't echo commands when executed */
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#define OP_MAKE 0x00000200 /* Target is a recurrsive make so its
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* commands should always be executed when
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* it is out of date, regardless of the
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* state of the -n or -t flags */
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#define OP_JOIN 0x00000400 /* Target is out-of-date only if any of its
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* children was out-of-date */
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#define OP_INVISIBLE 0x00004000 /* The node is invisible to its parents.
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* I.e. it doesn't show up in the parents's
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* local variables. */
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#define OP_NOTMAIN 0x00008000 /* The node is exempt from normal 'main
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* target' processing in parse.c */
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#define OP_PHONY 0x00010000 /* Not a file target; run always */
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/* Attributes applied by PMake */
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#define OP_TRANSFORM 0x80000000 /* The node is a transformation rule */
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#define OP_MEMBER 0x40000000 /* Target is a member of an archive */
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#define OP_LIB 0x20000000 /* Target is a library */
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#define OP_ARCHV 0x10000000 /* Target is an archive construct */
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#define OP_HAS_COMMANDS 0x08000000 /* Target has all the commands it should.
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* Used when parsing to catch multiple
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* commands for a target */
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#define OP_SAVE_CMDS 0x04000000 /* Saving commands on .END (Compat) */
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#define OP_DEPS_FOUND 0x02000000 /* Already processed by Suff_FindDeps */
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/*
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* OP_NOP will return TRUE if the node with the given type was not the
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* object of a dependency operator
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*/
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#define OP_NOP(t) (((t) & OP_OPMASK) == 0x00000000)
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/*
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* The TARG_ constants are used when calling the Targ_FindNode and
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* Targ_FindList functions in targ.c. They simply tell the functions what to
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* do if the desired node(s) is (are) not found. If the TARG_CREATE constant
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* is given, a new, empty node will be created for the target, placed in the
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* table of all targets and its address returned. If TARG_NOCREATE is given,
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* a NULL pointer will be returned.
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*/
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#define TARG_CREATE 0x01 /* create node if not found */
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#define TARG_NOCREATE 0x00 /* don't create it */
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/*
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* There are several places where expandable buffers are used (parse.c and
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* var.c). This constant is merely the starting point for those buffers. If
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* lines tend to be much shorter than this, it would be best to reduce BSIZE.
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* If longer, it should be increased. Reducing it will cause more copying to
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* be done for longer lines, but will save space for shorter ones. In any
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* case, it ought to be a power of two simply because most storage allocation
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* schemes allocate in powers of two.
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*/
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#define MAKE_BSIZE 256 /* starting size for expandable buffers */
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/*
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* These constants are all used by the Str_Concat function to decide how the
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* final string should look. If STR_ADDSPACE is given, a space will be
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* placed between the two strings. If STR_ADDSLASH is given, a '/' will
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* be used instead of a space. If neither is given, no intervening characters
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* will be placed between the two strings in the final output. If the
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* STR_DOFREE bit is set, the two input strings will be freed before
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* Str_Concat returns.
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*/
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#define STR_ADDSPACE 0x01 /* add a space when Str_Concat'ing */
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#define STR_DOFREE 0x02 /* free source strings after concatenation */
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#define STR_ADDSLASH 0x04 /* add a slash when Str_Concat'ing */
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/*
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* Error levels for parsing. PARSE_FATAL means the process cannot continue
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* once the makefile has been parsed. PARSE_WARNING means it can. Passed
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* as the first argument to Parse_Error.
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*/
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#define PARSE_WARNING 2
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#define PARSE_FATAL 1
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/*
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* Values returned by Cond_Eval.
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*/
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#define COND_PARSE 0 /* Parse the next lines */
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#define COND_SKIP 1 /* Skip the next lines */
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#define COND_INVALID 2 /* Not a conditional statement */
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/*
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* Definitions for the "local" variables. Used only for clarity.
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*/
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#define TARGET "@" /* Target of dependency */
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#define OODATE "?" /* All out-of-date sources */
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#define ALLSRC ">" /* All sources */
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#define IMPSRC "<" /* Source implied by transformation */
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#define PREFIX "*" /* Common prefix */
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#define ARCHIVE "!" /* Archive in "archive(member)" syntax */
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#define MEMBER "%" /* Member in "archive(member)" syntax */
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#define FTARGET "@F" /* file part of TARGET */
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#define DTARGET "@D" /* directory part of TARGET */
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#define FIMPSRC "<F" /* file part of IMPSRC */
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#define DIMPSRC "<D" /* directory part of IMPSRC */
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#define FPREFIX "*F" /* file part of PREFIX */
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#define DPREFIX "*D" /* directory part of PREFIX */
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/*
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* Global Variables
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*/
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extern Lst create; /* The list of target names specified on the
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* command line. used to resolve #if
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* make(...) statements */
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extern Lst dirSearchPath; /* The list of directories to search when
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* looking for targets */
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extern Boolean compatMake; /* True if we are make compatible */
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extern Boolean ignoreErrors; /* True if should ignore all errors */
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extern Boolean beSilent; /* True if should print no commands */
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extern Boolean beVerbose; /* True if should print extra cruft */
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extern Boolean noExecute; /* True if should execute nothing */
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extern Boolean allPrecious; /* True if every target is precious */
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extern Boolean keepgoing; /* True if should continue on unaffected
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* portions of the graph when have an error
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* in one portion */
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extern Boolean touchFlag; /* TRUE if targets should just be 'touched'
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* if out of date. Set by the -t flag */
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extern Boolean usePipes; /* TRUE if should capture the output of
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* subshells by means of pipes. Otherwise it
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* is routed to temporary files from which it
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* is retrieved when the shell exits */
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extern Boolean queryFlag; /* TRUE if we aren't supposed to really make
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* anything, just see if the targets are out-
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* of-date */
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extern Boolean checkEnvFirst; /* TRUE if environment should be searched for
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* all variables before the global context */
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extern Lst envFirstVars; /* List of specific variables for which the
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* environment should be searched before the
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* global context */
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extern GNode *DEFAULT; /* .DEFAULT rule */
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extern GNode *VAR_GLOBAL; /* Variables defined in a global context, e.g
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* in the Makefile itself */
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extern GNode *VAR_CMD; /* Variables defined on the command line */
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extern char var_Error[]; /* Value returned by Var_Parse when an error
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* is encountered. It actually points to
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* an empty string, so naive callers needn't
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* worry about it. */
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extern time_t now; /* The time at the start of this whole
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* process */
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extern Boolean oldVars; /* Do old-style variable substitution */
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extern Lst sysIncPath; /* The system include path. */
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/*
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* debug control:
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* There is one bit per module. It is up to the module what debug
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* information to print.
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*/
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extern int debug;
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#define DEBUG_ARCH 0x0001
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#define DEBUG_COND 0x0002
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#define DEBUG_DIR 0x0004
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#define DEBUG_GRAPH1 0x0008
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#define DEBUG_GRAPH2 0x0010
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#define DEBUG_JOB 0x0020
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#define DEBUG_MAKE 0x0040
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#define DEBUG_SUFF 0x0080
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#define DEBUG_TARG 0x0100
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#define DEBUG_VAR 0x0200
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#define DEBUG_FOR 0x0400
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#define DEBUG_LOUD 0x0800
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#ifdef __STDC__
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#define CONCAT(a,b) a##b
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#else
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#define I(a) a
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#define CONCAT(a,b) I(a)b
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#endif /* __STDC__ */
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#define DEBUG(module) (debug & CONCAT(DEBUG_,module))
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#define ISDOT(c) ((c)[0] == '.' && (((c)[1] == '\0') || ((c)[1] == '/')))
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#define ISDOTDOT(c) ((c)[0] == '.' && ISDOT(&((c)[1])))
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/*
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* Since there are so many, all functions that return non-integer values are
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* extracted by means of a sed script or two and stuck in the file "nonints.h"
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*/
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#include "nonints.h"
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int Make_TimeStamp __P((GNode *, GNode *));
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Boolean Make_OODate __P((GNode *));
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int Make_HandleUse __P((GNode *, GNode *));
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void Make_Update __P((GNode *));
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void Make_DoAllVar __P((GNode *));
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Boolean Make_Run __P((Lst));
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#endif /* _MAKE_H_ */
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