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freebsd/usr.bin/make/make.h
Jordan K. Hubbard 9f574f9a90 Bring in a number of changes from NetBSD's make, fixing quite a few 
problems in the process:

1. Quoting should work properly now.  In particular, Chet's reported bash
   make problem has gone away.
2. A lot of memory that just wasn't being free'd after use is now freed.
   This should cause make to take up a LOT less memory when dealing with
   archive targets.
3. Give proper credit to Adam de Boor in a number of files.
Obtained from: NetBSD (and Adam de Boor)
1995-01-23 21:03:17 +00:00

366 lines
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/*
* Copyright (c) 1988, 1989, 1990, 1993
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1989 by Berkeley Softworks
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Adam de Boor.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)make.h 8.1 (Berkeley) 6/6/93
*/
/*-
* make.h --
* The global definitions for pmake
*/
#ifndef _MAKE_H_
#define _MAKE_H_
#include <sys/types.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#ifndef MAKE_BOOTSTRAP
#include <sys/cdefs.h>
#else
#if defined(__STDC__) || defined(__cplusplus)
#define __P(protos) protos /* full-blown ANSI C */
#else
#define __P(protos) () /* traditional C preprocessor */
#endif
#endif
#if __STDC__
#include <stdlib.h>
#include <unistd.h>
#endif
#include "sprite.h"
#include "lst.h"
#include "config.h"
#include "buf.h"
/*-
* The structure for an individual graph node. Each node has several
* pieces of data associated with it.
* 1) the name of the target it describes
* 2) the location of the target file in the file system.
* 3) the type of operator used to define its sources (qv. parse.c)
* 4) whether it is involved in this invocation of make
* 5) whether the target has been remade
* 6) whether any of its children has been remade
* 7) the number of its children that are, as yet, unmade
* 8) its modification time
* 9) the modification time of its youngest child (qv. make.c)
* 10) a list of nodes for which this is a source
* 11) a list of nodes on which this depends
* 12) a list of nodes that depend on this, as gleaned from the
* transformation rules.
* 13) a list of nodes of the same name created by the :: operator
* 14) a list of nodes that must be made (if they're made) before
* this node can be, but that do no enter into the datedness of
* this node.
* 15) a list of nodes that must be made (if they're made) after
* this node is, but that do not depend on this node, in the
* normal sense.
* 16) a Lst of ``local'' variables that are specific to this target
* and this target only (qv. var.c [$@ $< $?, etc.])
* 17) a Lst of strings that are commands to be given to a shell
* to create this target.
*/
typedef struct GNode {
char *name; /* The target's name */
char *path; /* The full pathname of the file */
int type; /* Its type (see the OP flags, below) */
Boolean make; /* TRUE if this target needs to be remade */
enum {
UNMADE, BEINGMADE, MADE, UPTODATE, ERROR, ABORTED,
CYCLE, ENDCYCLE,
} made; /* Set to reflect the state of processing
* on this node:
* UNMADE - Not examined yet
* BEINGMADE - Target is already being made.
* Indicates a cycle in the graph. (compat
* mode only)
* MADE - Was out-of-date and has been made
* UPTODATE - Was already up-to-date
* ERROR - An error occured while it was being
* made (used only in compat mode)
* ABORTED - The target was aborted due to
* an error making an inferior (compat).
* CYCLE - Marked as potentially being part of
* a graph cycle. If we come back to a
* node marked this way, it is printed
* and 'made' is changed to ENDCYCLE.
* ENDCYCLE - the cycle has been completely
* printed. Go back and unmark all its
* members.
*/
Boolean childMade; /* TRUE if one of this target's children was
* made */
int unmade; /* The number of unmade children */
int mtime; /* Its modification time */
int cmtime; /* The modification time of its youngest
* child */
Lst iParents; /* Links to parents for which this is an
* implied source, if any */
Lst cohorts; /* Other nodes for the :: operator */
Lst parents; /* Nodes that depend on this one */
Lst children; /* Nodes on which this one depends */
Lst successors; /* Nodes that must be made after this one */
Lst preds; /* Nodes that must be made before this one */
Lst context; /* The local variables */
Lst commands; /* Creation commands */
struct _Suff *suffix; /* Suffix for the node (determined by
* Suff_FindDeps and opaque to everyone
* but the Suff module) */
} GNode;
/*
* Manifest constants
*/
#define NILGNODE ((GNode *) NIL)
/*
* The OP_ constants are used when parsing a dependency line as a way of
* communicating to other parts of the program the way in which a target
* should be made. These constants are bitwise-OR'ed together and
* placed in the 'type' field of each node. Any node that has
* a 'type' field which satisfies the OP_NOP function was never never on
* the lefthand side of an operator, though it may have been on the
* righthand side...
*/
#define OP_DEPENDS 0x00000001 /* Execution of commands depends on
* kids (:) */
#define OP_FORCE 0x00000002 /* Always execute commands (!) */
#define OP_DOUBLEDEP 0x00000004 /* Execution of commands depends on kids
* per line (::) */
#define OP_OPMASK (OP_DEPENDS|OP_FORCE|OP_DOUBLEDEP)
#define OP_OPTIONAL 0x00000008 /* Don't care if the target doesn't
* exist and can't be created */
#define OP_USE 0x00000010 /* Use associated commands for parents */
#define OP_EXEC 0x00000020 /* Target is never out of date, but always
* execute commands anyway. Its time
* doesn't matter, so it has none...sort
* of */
#define OP_IGNORE 0x00000040 /* Ignore errors when creating the node */
#define OP_PRECIOUS 0x00000080 /* Don't remove the target when
* interrupted */
#define OP_SILENT 0x00000100 /* Don't echo commands when executed */
#define OP_MAKE 0x00000200 /* Target is a recurrsive make so its
* commands should always be executed when
* it is out of date, regardless of the
* state of the -n or -t flags */
#define OP_JOIN 0x00000400 /* Target is out-of-date only if any of its
* children was out-of-date */
#define OP_INVISIBLE 0x00004000 /* The node is invisible to its parents.
* I.e. it doesn't show up in the parents's
* local variables. */
#define OP_NOTMAIN 0x00008000 /* The node is exempt from normal 'main
* target' processing in parse.c */
/* Attributes applied by PMake */
#define OP_TRANSFORM 0x80000000 /* The node is a transformation rule */
#define OP_MEMBER 0x40000000 /* Target is a member of an archive */
#define OP_LIB 0x20000000 /* Target is a library */
#define OP_ARCHV 0x10000000 /* Target is an archive construct */
#define OP_HAS_COMMANDS 0x08000000 /* Target has all the commands it should.
* Used when parsing to catch multiple
* commands for a target */
#define OP_SAVE_CMDS 0x04000000 /* Saving commands on .END (Compat) */
#define OP_DEPS_FOUND 0x02000000 /* Already processed by Suff_FindDeps */
/*
* OP_NOP will return TRUE if the node with the given type was not the
* object of a dependency operator
*/
#define OP_NOP(t) (((t) & OP_OPMASK) == 0x00000000)
/*
* The TARG_ constants are used when calling the Targ_FindNode and
* Targ_FindList functions in targ.c. They simply tell the functions what to
* do if the desired node(s) is (are) not found. If the TARG_CREATE constant
* is given, a new, empty node will be created for the target, placed in the
* table of all targets and its address returned. If TARG_NOCREATE is given,
* a NIL pointer will be returned.
*/
#define TARG_CREATE 0x01 /* create node if not found */
#define TARG_NOCREATE 0x00 /* don't create it */
/*
* There are several places where expandable buffers are used (parse.c and
* var.c). This constant is merely the starting point for those buffers. If
* lines tend to be much shorter than this, it would be best to reduce BSIZE.
* If longer, it should be increased. Reducing it will cause more copying to
* be done for longer lines, but will save space for shorter ones. In any
* case, it ought to be a power of two simply because most storage allocation
* schemes allocate in powers of two.
*/
#define MAKE_BSIZE 256 /* starting size for expandable buffers */
/*
* These constants are all used by the Str_Concat function to decide how the
* final string should look. If STR_ADDSPACE is given, a space will be
* placed between the two strings. If STR_ADDSLASH is given, a '/' will
* be used instead of a space. If neither is given, no intervening characters
* will be placed between the two strings in the final output. If the
* STR_DOFREE bit is set, the two input strings will be freed before
* Str_Concat returns.
*/
#define STR_ADDSPACE 0x01 /* add a space when Str_Concat'ing */
#define STR_DOFREE 0x02 /* free source strings after concatenation */
#define STR_ADDSLASH 0x04 /* add a slash when Str_Concat'ing */
/*
* Error levels for parsing. PARSE_FATAL means the process cannot continue
* once the makefile has been parsed. PARSE_WARNING means it can. Passed
* as the first argument to Parse_Error.
*/
#define PARSE_WARNING 2
#define PARSE_FATAL 1
/*
* Values returned by Cond_Eval.
*/
#define COND_PARSE 0 /* Parse the next lines */
#define COND_SKIP 1 /* Skip the next lines */
#define COND_INVALID 2 /* Not a conditional statement */
/*
* Definitions for the "local" variables. Used only for clarity.
*/
#define TARGET "@" /* Target of dependency */
#define OODATE "?" /* All out-of-date sources */
#define ALLSRC ">" /* All sources */
#define IMPSRC "<" /* Source implied by transformation */
#define PREFIX "*" /* Common prefix */
#define ARCHIVE "!" /* Archive in "archive(member)" syntax */
#define MEMBER "%" /* Member in "archive(member)" syntax */
#define FTARGET "@F" /* file part of TARGET */
#define DTARGET "@D" /* directory part of TARGET */
#define FIMPSRC "<F" /* file part of IMPSRC */
#define DIMPSRC "<D" /* directory part of IMPSRC */
#define FPREFIX "*F" /* file part of PREFIX */
#define DPREFIX "*D" /* directory part of PREFIX */
/*
* Global Variables
*/
extern Lst create; /* The list of target names specified on the
* command line. used to resolve #if
* make(...) statements */
extern Lst dirSearchPath; /* The list of directories to search when
* looking for targets */
extern Boolean compatMake; /* True if we are make compatible */
extern Boolean ignoreErrors; /* True if should ignore all errors */
extern Boolean beSilent; /* True if should print no commands */
extern Boolean noExecute; /* True if should execute nothing */
extern Boolean allPrecious; /* True if every target is precious */
extern Boolean keepgoing; /* True if should continue on unaffected
* portions of the graph when have an error
* in one portion */
extern Boolean touchFlag; /* TRUE if targets should just be 'touched'
* if out of date. Set by the -t flag */
extern Boolean usePipes; /* TRUE if should capture the output of
* subshells by means of pipes. Otherwise it
* is routed to temporary files from which it
* is retrieved when the shell exits */
extern Boolean queryFlag; /* TRUE if we aren't supposed to really make
* anything, just see if the targets are out-
* of-date */
extern Boolean checkEnvFirst; /* TRUE if environment should be searched for
* variables before the global context */
extern GNode *DEFAULT; /* .DEFAULT rule */
extern GNode *VAR_GLOBAL; /* Variables defined in a global context, e.g
* in the Makefile itself */
extern GNode *VAR_CMD; /* Variables defined on the command line */
extern char var_Error[]; /* Value returned by Var_Parse when an error
* is encountered. It actually points to
* an empty string, so naive callers needn't
* worry about it. */
extern time_t now; /* The time at the start of this whole
* process */
extern Boolean oldVars; /* Do old-style variable substitution */
/*
* debug control:
* There is one bit per module. It is up to the module what debug
* information to print.
*/
extern int debug;
#define DEBUG_ARCH 0x0001
#define DEBUG_COND 0x0002
#define DEBUG_DIR 0x0004
#define DEBUG_GRAPH1 0x0008
#define DEBUG_GRAPH2 0x0010
#define DEBUG_JOB 0x0020
#define DEBUG_MAKE 0x0040
#define DEBUG_SUFF 0x0080
#define DEBUG_TARG 0x0100
#define DEBUG_VAR 0x0200
#define DEBUG_FOR 0x0400
#ifdef __STDC__
#define CONCAT(a,b) a##b
#else
#define I(a) a
#define CONCAT(a,b) I(a)b
#endif /* __STDC__ */
#define DEBUG(module) (debug & CONCAT(DEBUG_,module))
/*
* Since there are so many, all functions that return non-integer values are
* extracted by means of a sed script or two and stuck in the file "nonints.h"
*/
#include "nonints.h"
int Make_TimeStamp __P((GNode *, GNode *));
Boolean Make_OODate __P((GNode *));
int Make_HandleUse __P((GNode *, GNode *));
void Make_Update __P((GNode *));
void Make_DoAllVar __P((GNode *));
Boolean Make_Run __P((Lst));
#endif /* _MAKE_H_ */
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