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freebsd/contrib/bmake/make.h
Simon J. Gerraty 45447996a0 Merge bmake-20161212
2016-12-19 23:38:07 +00:00

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/* $NetBSD: make.h,v 1.102 2016/12/07 15:00:46 christos Exp $ */
/*
* Copyright (c) 1988, 1989, 1990, 1993
* The Regents of the University of California. 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. 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.
*
* from: @(#)make.h 8.3 (Berkeley) 6/13/95
*/
/*
* 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.
*
* from: @(#)make.h 8.3 (Berkeley) 6/13/95
*/
/*-
* make.h --
* The global definitions for pmake
*/
#ifndef _MAKE_H_
#define _MAKE_H_
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <sys/types.h>
#include <sys/param.h>
#include <ctype.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#ifdef HAVE_STRING_H
#include <string.h>
#else
#include <strings.h>
#endif
#include <unistd.h>
#include <sys/cdefs.h>
#ifndef FD_CLOEXEC
#define FD_CLOEXEC 1
#endif
#if defined(__GNUC__)
#define MAKE_GNUC_PREREQ(x, y) \
((__GNUC__ == (x) && __GNUC_MINOR__ >= (y)) || \
(__GNUC__ > (x)))
#else /* defined(__GNUC__) */
#define MAKE_GNUC_PREREQ(x, y) 0
#endif /* defined(__GNUC__) */
#if MAKE_GNUC_PREREQ(2, 7)
#define MAKE_ATTR_UNUSED __attribute__((__unused__))
#else
#define MAKE_ATTR_UNUSED /* delete */
#endif
#if MAKE_GNUC_PREREQ(2, 5)
#define MAKE_ATTR_DEAD __attribute__((__noreturn__))
#elif defined(__GNUC__)
#define MAKE_ATTR_DEAD __volatile
#else
#define MAKE_ATTR_DEAD /* delete */
#endif
#if MAKE_GNUC_PREREQ(2, 7)
#define MAKE_ATTR_PRINTFLIKE(fmtarg, firstvararg) \
__attribute__((__format__ (__printf__, fmtarg, firstvararg)))
#else
#define MAKE_ATTR_PRINTFLIKE(fmtarg, firstvararg) /* delete */
#endif
#include "sprite.h"
#include "lst.h"
#include "hash.h"
#include "make-conf.h"
#include "buf.h"
#include "make_malloc.h"
/*
* some vendors don't have this --sjg
*/
#if defined(S_IFDIR) && !defined(S_ISDIR)
# define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
#endif
#if defined(sun) && (defined(__svr4__) || defined(__SVR4))
#define POSIX_SIGNALS
#endif
/*-
* 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 (parents)
* 11) a list of nodes on which this depends (children)
* 12) a list of nodes that depend on this, as gleaned from the
* transformation rules (iParents)
* 13) a list of ancestor nodes, which includes parents, iParents,
* and recursive parents of parents
* 14) a list of nodes of the same name created by the :: operator
* 15) a list of nodes that must be made (if they're made) before
* this node can be, but that do not enter into the datedness of
* this node.
* 16) a list of nodes that must be made (if they're made) before
* this node or any child of this node can be, but that do not
* enter into the datedness of this node.
* 17) 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.
* 18) a Lst of ``local'' variables that are specific to this target
* and this target only (qv. var.c [$@ $< $?, etc.])
* 19) 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 *uname; /* The unexpanded name of a .USE node */
char *path; /* The full pathname of the file */
int type; /* Its type (see the OP flags, below) */
int flags;
#define REMAKE 0x1 /* this target needs to be (re)made */
#define CHILDMADE 0x2 /* children of this target were made */
#define FORCE 0x4 /* children don't exist, and we pretend made */
#define DONE_WAIT 0x8 /* Set by Make_ProcessWait() */
#define DONE_ORDER 0x10 /* Build requested by .ORDER processing */
#define FROM_DEPEND 0x20 /* Node created from .depend */
#define DONE_ALLSRC 0x40 /* We do it once only */
#define CYCLE 0x1000 /* Used by MakePrintStatus */
#define DONECYCLE 0x2000 /* Used by MakePrintStatus */
#define INTERNAL 0x4000 /* Internal use only */
enum enum_made {
UNMADE, DEFERRED, REQUESTED, BEINGMADE,
MADE, UPTODATE, ERROR, ABORTED
} made; /* Set to reflect the state of processing
* on this node:
* UNMADE - Not examined yet
* DEFERRED - Examined once (building child)
* REQUESTED - on toBeMade list
* BEINGMADE - Target is already being made.
* Indicates a cycle in the graph.
* MADE - Was out-of-date and has been made
* UPTODATE - Was already up-to-date
* ERROR - An error occurred while it was being
* made (used only in compat mode)
* ABORTED - The target was aborted due to
* an error making an inferior (compat).
*/
int unmade; /* The number of unmade children */
time_t mtime; /* Its modification time */
struct GNode *cmgn; /* The 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 order_pred; /* .ORDER nodes we need made */
Lst order_succ; /* .ORDER nodes who need us */
char cohort_num[8]; /* #n for this cohort */
int unmade_cohorts;/* # of unmade instances on the
cohorts list */
struct GNode *centurion; /* Pointer to the first instance of a ::
node; only set when on a cohorts list */
unsigned int checked; /* Last time we tried to makle this node */
Hash_Table 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) */
const char *fname; /* filename where the GNode got defined */
int lineno; /* line number where the GNode got defined */
} GNode;
/*
* 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 recursive 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_MADE 0x00000800 /* Assume the children of the node have
* been already made */
#define OP_SPECIAL 0x00001000 /* Special .BEGIN, .END, .INTERRUPT */
#define OP_USEBEFORE 0x00002000 /* Like .USE, only prepend commands */
#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 */
#define OP_PHONY 0x00010000 /* Not a file target; run always */
#define OP_NOPATH 0x00020000 /* Don't search for file in the path */
#define OP_WAIT 0x00040000 /* .WAIT phony node */
#define OP_NOMETA 0x00080000 /* .NOMETA do not create a .meta file */
#define OP_META 0x00100000 /* .META we _do_ want a .meta file */
#define OP_NOMETA_CMP 0x00200000 /* Do not compare commands in .meta file */
#define OP_SUBMAKE 0x00400000 /* Possibly a submake node */
/* 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 */
#define OP_MARK 0x01000000 /* Node found while expanding .ALLSRC */
#define NoExecute(gn) ((gn->type & OP_MAKE) ? noRecursiveExecute : noExecute)
/*
* 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)
#define OP_NOTARGET (OP_NOTMAIN|OP_USE|OP_EXEC|OP_TRANSFORM)
/*
* 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 NULL pointer will be returned.
*/
#define TARG_NOCREATE 0x00 /* don't create it */
#define TARG_CREATE 0x01 /* create node if not found */
#define TARG_NOHASH 0x02 /* don't look in/add to hash table */
/*
* 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_ADDSLASH 0x02 /* 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 noRecursiveExecute; /* True if should execute nothing */
extern Boolean allPrecious; /* True if every target is precious */
extern Boolean deleteOnError; /* True if failed targets should be deleted */
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 queryFlag; /* TRUE if we aren't supposed to really make
* anything, just see if the targets are out-
* of-date */
extern Boolean doing_depend; /* TRUE if processing .depend */
extern Boolean checkEnvFirst; /* TRUE if environment should be searched for
* variables before the global context */
extern Boolean jobServer; /* a jobServer already exists */
extern Boolean parseWarnFatal; /* TRUE if makefile parsing warnings are
* treated as errors */
extern Boolean varNoExportEnv; /* TRUE if we should not export variables
* set on the command line to the env. */
extern GNode *DEFAULT; /* .DEFAULT rule */
extern GNode *VAR_INTERNAL; /* Variables defined internally by make
* which should not override those set by
* makefiles.
*/
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 GNode *VAR_FOR; /* Iteration variables */
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 */
extern Lst sysIncPath; /* The system include path. */
extern Lst defIncPath; /* The default include path. */
extern char curdir[]; /* Startup directory */
extern char *progname; /* The program name */
extern char *makeDependfile; /* .depend */
extern char **savedEnv; /* if we replaced environ this will be non-NULL */
/*
* We cannot vfork() in a child of vfork().
* Most systems do not enforce this but some do.
*/
#define vFork() ((getpid() == myPid) ? vfork() : fork())
extern pid_t myPid;
#define MAKEFLAGS ".MAKEFLAGS"
#define MAKEOVERRIDES ".MAKEOVERRIDES"
#define MAKE_JOB_PREFIX ".MAKE.JOB.PREFIX" /* prefix for job target output */
#define MAKE_EXPORTED ".MAKE.EXPORTED" /* variables we export */
#define MAKE_MAKEFILES ".MAKE.MAKEFILES" /* all the makefiles we read */
#define MAKE_LEVEL ".MAKE.LEVEL" /* recursion level */
#define MAKEFILE_PREFERENCE ".MAKE.MAKEFILE_PREFERENCE"
#define MAKE_DEPENDFILE ".MAKE.DEPENDFILE" /* .depend */
#define MAKE_MODE ".MAKE.MODE"
#ifndef MAKE_LEVEL_ENV
# define MAKE_LEVEL_ENV "MAKELEVEL"
#endif
/*
* debug control:
* There is one bit per module. It is up to the module what debug
* information to print.
*/
FILE *debug_file; /* Output written here - default stdout */
extern int debug;
#define DEBUG_ARCH 0x00001
#define DEBUG_COND 0x00002
#define DEBUG_DIR 0x00004
#define DEBUG_GRAPH1 0x00008
#define DEBUG_GRAPH2 0x00010
#define DEBUG_JOB 0x00020
#define DEBUG_MAKE 0x00040
#define DEBUG_SUFF 0x00080
#define DEBUG_TARG 0x00100
#define DEBUG_VAR 0x00200
#define DEBUG_FOR 0x00400
#define DEBUG_SHELL 0x00800
#define DEBUG_ERROR 0x01000
#define DEBUG_LOUD 0x02000
#define DEBUG_META 0x04000
#define DEBUG_GRAPH3 0x10000
#define DEBUG_SCRIPT 0x20000
#define DEBUG_PARSE 0x40000
#define DEBUG_CWD 0x80000
#define CONCAT(a,b) a##b
#define DEBUG(module) (debug & CONCAT(DEBUG_,module))
#include "nonints.h"
int Make_TimeStamp(GNode *, GNode *);
Boolean Make_OODate(GNode *);
void Make_ExpandUse(Lst);
time_t Make_Recheck(GNode *);
void Make_HandleUse(GNode *, GNode *);
void Make_Update(GNode *);
void Make_DoAllVar(GNode *);
Boolean Make_Run(Lst);
char * Check_Cwd_Cmd(const char *);
void Check_Cwd(const char **);
void PrintOnError(GNode *, const char *);
void Main_ExportMAKEFLAGS(Boolean);
Boolean Main_SetObjdir(const char *, ...) MAKE_ATTR_PRINTFLIKE(1, 2);
int mkTempFile(const char *, char **);
int str2Lst_Append(Lst, char *, const char *);
int cached_lstat(const char *, void *);
int cached_stat(const char *, void *);
#define VARF_UNDEFERR 1
#define VARF_WANTRES 2
#define VARF_ASSIGN 4
#ifdef __GNUC__
#define UNCONST(ptr) ({ \
union __unconst { \
const void *__cp; \
void *__p; \
} __d; \
__d.__cp = ptr, __d.__p; })
#else
#define UNCONST(ptr) (void *)(ptr)
#endif
#ifndef MIN
#define MIN(a, b) ((a < b) ? a : b)
#endif
#ifndef MAX
#define MAX(a, b) ((a > b) ? a : b)
#endif
/* At least GNU/Hurd systems lack hardcoded MAXPATHLEN/PATH_MAX */
#ifdef HAVE_LIMITS_H
#include <limits.h>
#endif
#ifndef MAXPATHLEN
#define MAXPATHLEN BMAKE_PATH_MAX
#endif
#ifndef PATH_MAX
#define PATH_MAX MAXPATHLEN
#endif
#endif /* _MAKE_H_ */
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