Lots of code refactoring, simplification and cleanup. Lots of new unit-tests providing much higher code coverage. All courtesy of rillig at netbsd. Other significant changes: o new read-only variable .SHELL which provides the path of the shell used to run scripts (as defined by the .SHELL target). o variable parsing detects more errors. o new debug option -dl: LINT mode, does the equivalent of := for all variable assignments so that file and line number are reported for variable parse errors.
1562 lines
46 KiB
C
1562 lines
46 KiB
C
/* $NetBSD: make.c,v 1.133 2020/08/30 14:11:42 rillig Exp $ */
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/*
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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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*
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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
|
|
* 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
|
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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
|
|
* 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
|
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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
|
|
* 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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/*
|
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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
|
|
* 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.
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|
* 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)
|
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef MAKE_NATIVE
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static char rcsid[] = "$NetBSD: make.c,v 1.133 2020/08/30 14:11:42 rillig Exp $";
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#else
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)make.c 8.1 (Berkeley) 6/6/93";
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#else
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__RCSID("$NetBSD: make.c,v 1.133 2020/08/30 14:11:42 rillig Exp $");
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#endif
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#endif /* not lint */
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#endif
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|
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/*-
|
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* make.c --
|
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* The functions which perform the examination of targets and
|
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* their suitability for creation
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*
|
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* Interface:
|
|
* Make_Run Initialize things for the module and recreate
|
|
* whatever needs recreating. Returns TRUE if
|
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* work was (or would have been) done and FALSE
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* otherwise.
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*
|
|
* Make_Update Update all parents of a given child. Performs
|
|
* various bookkeeping chores like the updating
|
|
* of the cmgn field of the parent, filling
|
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* of the IMPSRC context variable, etc. It will
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* place the parent on the toBeMade queue if it
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* should be.
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*
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* Make_TimeStamp Function to set the parent's cmgn field
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* based on a child's modification time.
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*
|
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* Make_DoAllVar Set up the various local variables for a
|
|
* target, including the .ALLSRC variable, making
|
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* sure that any variable that needs to exist
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* at the very least has the empty value.
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*
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* Make_OODate Determine if a target is out-of-date.
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*
|
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* Make_HandleUse See if a child is a .USE node for a parent
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* and perform the .USE actions if so.
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*
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* Make_ExpandUse Expand .USE nodes
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*/
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#include "make.h"
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#include "enum.h"
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#include "dir.h"
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#include "job.h"
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|
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static unsigned int checked = 1;/* Sequence # to detect recursion */
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|
static Lst toBeMade; /* The current fringe of the graph. These
|
|
* are nodes which await examination by
|
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* MakeOODate. It is added to by
|
|
* Make_Update and subtracted from by
|
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* MakeStartJobs */
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|
|
static int MakeAddChild(void *, void *);
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|
static int MakeFindChild(void *, void *);
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|
static int MakeUnmark(void *, void *);
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static int MakeAddAllSrc(void *, void *);
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|
static int MakeTimeStamp(void *, void *);
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|
static int MakeHandleUse(void *, void *);
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|
static Boolean MakeStartJobs(void);
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|
static int MakePrintStatus(void *, void *);
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|
static int MakeCheckOrder(void *, void *);
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static int MakeBuildChild(void *, void *);
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static int MakeBuildParent(void *, void *);
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|
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MAKE_ATTR_DEAD static void
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make_abort(GNode *gn, int line)
|
|
{
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|
static int two = 2;
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fprintf(debug_file, "make_abort from line %d\n", line);
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Targ_PrintNode(gn, &two);
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Lst_ForEach(toBeMade, Targ_PrintNode, &two);
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|
Targ_PrintGraph(3);
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|
abort();
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|
}
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ENUM_VALUE_RTTI_8(GNodeMade,
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UNMADE, DEFERRED, REQUESTED, BEINGMADE,
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MADE, UPTODATE, ERROR, ABORTED);
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ENUM_FLAGS_RTTI_31(GNodeType,
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OP_DEPENDS, OP_FORCE, OP_DOUBLEDEP,
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|
/* OP_OPMASK is omitted since it combines other flags */
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OP_OPTIONAL, OP_USE, OP_EXEC, OP_IGNORE,
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OP_PRECIOUS, OP_SILENT, OP_MAKE, OP_JOIN,
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OP_MADE, OP_SPECIAL, OP_USEBEFORE, OP_INVISIBLE,
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|
OP_NOTMAIN, OP_PHONY, OP_NOPATH, OP_WAIT,
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OP_NOMETA, OP_META, OP_NOMETA_CMP, OP_SUBMAKE,
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OP_TRANSFORM, OP_MEMBER, OP_LIB, OP_ARCHV,
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OP_HAS_COMMANDS, OP_SAVE_CMDS, OP_DEPS_FOUND, OP_MARK);
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|
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ENUM_FLAGS_RTTI_10(GNodeFlags,
|
|
REMAKE, CHILDMADE, FORCE, DONE_WAIT,
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DONE_ORDER, FROM_DEPEND, DONE_ALLSRC, CYCLE,
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DONECYCLE, INTERNAL);
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|
|
void
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|
GNode_FprintDetails(FILE *f, const char *prefix, const GNode *gn,
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|
const char *suffix)
|
|
{
|
|
char type_buf[GNodeType_ToStringSize];
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|
char flags_buf[GNodeFlags_ToStringSize];
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fprintf(f, "%smade %s, type %s, flags %s%s",
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prefix,
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|
Enum_ValueToString(gn->made, GNodeMade_ToStringSpecs),
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|
Enum_FlagsToString(type_buf, sizeof type_buf,
|
|
gn->type, GNodeType_ToStringSpecs),
|
|
Enum_FlagsToString(flags_buf, sizeof flags_buf,
|
|
gn->flags, GNodeFlags_ToStringSpecs),
|
|
suffix);
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* Make_TimeStamp --
|
|
* Set the cmgn field of a parent node based on the mtime stamp in its
|
|
* child. Called from MakeOODate via Lst_ForEach.
|
|
*
|
|
* Input:
|
|
* pgn the current parent
|
|
* cgn the child we've just examined
|
|
*
|
|
* Results:
|
|
* Always returns 0.
|
|
*
|
|
* Side Effects:
|
|
* The cmgn of the parent node will be changed if the mtime
|
|
* field of the child is greater than it.
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
int
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|
Make_TimeStamp(GNode *pgn, GNode *cgn)
|
|
{
|
|
if (pgn->cmgn == NULL || cgn->mtime > pgn->cmgn->mtime) {
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|
pgn->cmgn = cgn;
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|
}
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|
return 0;
|
|
}
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|
|
|
/*
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|
* Input:
|
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* pgn the current parent
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|
* cgn the child we've just examined
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*
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|
*/
|
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static int
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MakeTimeStamp(void *pgn, void *cgn)
|
|
{
|
|
return Make_TimeStamp((GNode *)pgn, (GNode *)cgn);
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* Make_OODate --
|
|
* See if a given node is out of date with respect to its sources.
|
|
* Used by Make_Run when deciding which nodes to place on the
|
|
* toBeMade queue initially and by Make_Update to screen out USE and
|
|
* EXEC nodes. In the latter case, however, any other sort of node
|
|
* must be considered out-of-date since at least one of its children
|
|
* will have been recreated.
|
|
*
|
|
* Input:
|
|
* gn the node to check
|
|
*
|
|
* Results:
|
|
* TRUE if the node is out of date. FALSE otherwise.
|
|
*
|
|
* Side Effects:
|
|
* The mtime field of the node and the cmgn field of its parents
|
|
* will/may be changed.
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
Boolean
|
|
Make_OODate(GNode *gn)
|
|
{
|
|
Boolean oodate;
|
|
|
|
/*
|
|
* Certain types of targets needn't even be sought as their datedness
|
|
* doesn't depend on their modification time...
|
|
*/
|
|
if ((gn->type & (OP_JOIN|OP_USE|OP_USEBEFORE|OP_EXEC)) == 0) {
|
|
(void)Dir_MTime(gn, 1);
|
|
if (DEBUG(MAKE)) {
|
|
if (gn->mtime != 0) {
|
|
fprintf(debug_file, "modified %s...", Targ_FmtTime(gn->mtime));
|
|
} else {
|
|
fprintf(debug_file, "non-existent...");
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* A target is remade in one of the following circumstances:
|
|
* its modification time is smaller than that of its youngest child
|
|
* and it would actually be run (has commands or type OP_NOP)
|
|
* it's the object of a force operator
|
|
* it has no children, was on the lhs of an operator and doesn't exist
|
|
* already.
|
|
*
|
|
* Libraries are only considered out-of-date if the archive module says
|
|
* they are.
|
|
*
|
|
* These weird rules are brought to you by Backward-Compatibility and
|
|
* the strange people who wrote 'Make'.
|
|
*/
|
|
if (gn->type & (OP_USE|OP_USEBEFORE)) {
|
|
/*
|
|
* If the node is a USE node it is *never* out of date
|
|
* no matter *what*.
|
|
*/
|
|
if (DEBUG(MAKE)) {
|
|
fprintf(debug_file, ".USE node...");
|
|
}
|
|
oodate = FALSE;
|
|
} else if ((gn->type & OP_LIB) &&
|
|
((gn->mtime==0) || Arch_IsLib(gn))) {
|
|
if (DEBUG(MAKE)) {
|
|
fprintf(debug_file, "library...");
|
|
}
|
|
|
|
/*
|
|
* always out of date if no children and :: target
|
|
* or non-existent.
|
|
*/
|
|
oodate = (gn->mtime == 0 || Arch_LibOODate(gn) ||
|
|
(gn->cmgn == NULL && (gn->type & OP_DOUBLEDEP)));
|
|
} else if (gn->type & OP_JOIN) {
|
|
/*
|
|
* A target with the .JOIN attribute is only considered
|
|
* out-of-date if any of its children was out-of-date.
|
|
*/
|
|
if (DEBUG(MAKE)) {
|
|
fprintf(debug_file, ".JOIN node...");
|
|
}
|
|
if (DEBUG(MAKE)) {
|
|
fprintf(debug_file, "source %smade...", gn->flags & CHILDMADE ? "" : "not ");
|
|
}
|
|
oodate = (gn->flags & CHILDMADE) ? TRUE : FALSE;
|
|
} else if (gn->type & (OP_FORCE|OP_EXEC|OP_PHONY)) {
|
|
/*
|
|
* A node which is the object of the force (!) operator or which has
|
|
* the .EXEC attribute is always considered out-of-date.
|
|
*/
|
|
if (DEBUG(MAKE)) {
|
|
if (gn->type & OP_FORCE) {
|
|
fprintf(debug_file, "! operator...");
|
|
} else if (gn->type & OP_PHONY) {
|
|
fprintf(debug_file, ".PHONY node...");
|
|
} else {
|
|
fprintf(debug_file, ".EXEC node...");
|
|
}
|
|
}
|
|
oodate = TRUE;
|
|
} else if ((gn->cmgn != NULL && gn->mtime < gn->cmgn->mtime) ||
|
|
(gn->cmgn == NULL &&
|
|
((gn->mtime == 0 && !(gn->type & OP_OPTIONAL))
|
|
|| gn->type & OP_DOUBLEDEP)))
|
|
{
|
|
/*
|
|
* A node whose modification time is less than that of its
|
|
* youngest child or that has no children (cmgn == NULL) and
|
|
* either doesn't exist (mtime == 0) and it isn't optional
|
|
* or was the object of a * :: operator is out-of-date.
|
|
* Why? Because that's the way Make does it.
|
|
*/
|
|
if (DEBUG(MAKE)) {
|
|
if (gn->cmgn != NULL && gn->mtime < gn->cmgn->mtime) {
|
|
fprintf(debug_file, "modified before source %s...",
|
|
gn->cmgn->path ? gn->cmgn->path : gn->cmgn->name);
|
|
} else if (gn->mtime == 0) {
|
|
fprintf(debug_file, "non-existent and no sources...");
|
|
} else {
|
|
fprintf(debug_file, ":: operator and no sources...");
|
|
}
|
|
}
|
|
oodate = TRUE;
|
|
} else {
|
|
/*
|
|
* When a non-existing child with no sources
|
|
* (such as a typically used FORCE source) has been made and
|
|
* the target of the child (usually a directory) has the same
|
|
* timestamp as the timestamp just given to the non-existing child
|
|
* after it was considered made.
|
|
*/
|
|
if (DEBUG(MAKE)) {
|
|
if (gn->flags & FORCE)
|
|
fprintf(debug_file, "non existing child...");
|
|
}
|
|
oodate = (gn->flags & FORCE) ? TRUE : FALSE;
|
|
}
|
|
|
|
#ifdef USE_META
|
|
if (useMeta) {
|
|
oodate = meta_oodate(gn, oodate);
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* If the target isn't out-of-date, the parents need to know its
|
|
* modification time. Note that targets that appear to be out-of-date
|
|
* but aren't, because they have no commands and aren't of type OP_NOP,
|
|
* have their mtime stay below their children's mtime to keep parents from
|
|
* thinking they're out-of-date.
|
|
*/
|
|
if (!oodate) {
|
|
Lst_ForEach(gn->parents, MakeTimeStamp, gn);
|
|
}
|
|
|
|
return oodate;
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* MakeAddChild --
|
|
* Function used by Make_Run to add a child to the list l.
|
|
* It will only add the child if its make field is FALSE.
|
|
*
|
|
* Input:
|
|
* gnp the node to add
|
|
* lp the list to which to add it
|
|
*
|
|
* Results:
|
|
* Always returns 0
|
|
*
|
|
* Side Effects:
|
|
* The given list is extended
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
static int
|
|
MakeAddChild(void *gnp, void *lp)
|
|
{
|
|
GNode *gn = (GNode *)gnp;
|
|
Lst l = (Lst) lp;
|
|
|
|
if ((gn->flags & REMAKE) == 0 && !(gn->type & (OP_USE|OP_USEBEFORE))) {
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "MakeAddChild: need to examine %s%s\n",
|
|
gn->name, gn->cohort_num);
|
|
Lst_Enqueue(l, gn);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* MakeFindChild --
|
|
* Function used by Make_Run to find the pathname of a child
|
|
* that was already made.
|
|
*
|
|
* Input:
|
|
* gnp the node to find
|
|
*
|
|
* Results:
|
|
* Always returns 0
|
|
*
|
|
* Side Effects:
|
|
* The path and mtime of the node and the cmgn of the parent are
|
|
* updated; the unmade children count of the parent is decremented.
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
static int
|
|
MakeFindChild(void *gnp, void *pgnp)
|
|
{
|
|
GNode *gn = (GNode *)gnp;
|
|
GNode *pgn = (GNode *)pgnp;
|
|
|
|
(void)Dir_MTime(gn, 0);
|
|
Make_TimeStamp(pgn, gn);
|
|
pgn->unmade--;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Called by Make_Run and SuffApplyTransform on the downward pass to handle
|
|
* .USE and transformation nodes, by copying the child node's commands, type
|
|
* flags and children to the parent node.
|
|
*
|
|
* A .USE node is much like an explicit transformation rule, except its
|
|
* commands are always added to the target node, even if the target already
|
|
* has commands.
|
|
*
|
|
* Input:
|
|
* cgn The .USE node
|
|
* pgn The target of the .USE node
|
|
*/
|
|
void
|
|
Make_HandleUse(GNode *cgn, GNode *pgn)
|
|
{
|
|
LstNode ln; /* An element in the children list */
|
|
|
|
#ifdef DEBUG_SRC
|
|
if ((cgn->type & (OP_USE|OP_USEBEFORE|OP_TRANSFORM)) == 0) {
|
|
fprintf(debug_file, "Make_HandleUse: called for plain node %s\n", cgn->name);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
if ((cgn->type & (OP_USE|OP_USEBEFORE)) || Lst_IsEmpty(pgn->commands)) {
|
|
if (cgn->type & OP_USEBEFORE) {
|
|
/* .USEBEFORE */
|
|
Lst_PrependAll(pgn->commands, cgn->commands);
|
|
} else {
|
|
/* .USE, or target has no commands */
|
|
Lst_AppendAll(pgn->commands, cgn->commands);
|
|
}
|
|
}
|
|
|
|
Lst_Open(cgn->children);
|
|
while ((ln = Lst_Next(cgn->children)) != NULL) {
|
|
GNode *gn = LstNode_Datum(ln);
|
|
|
|
/*
|
|
* Expand variables in the .USE node's name
|
|
* and save the unexpanded form.
|
|
* We don't need to do this for commands.
|
|
* They get expanded properly when we execute.
|
|
*/
|
|
if (gn->uname == NULL) {
|
|
gn->uname = gn->name;
|
|
} else {
|
|
free(gn->name);
|
|
}
|
|
gn->name = Var_Subst(gn->uname, pgn, VARE_WANTRES);
|
|
if (gn->uname && strcmp(gn->name, gn->uname) != 0) {
|
|
/* See if we have a target for this node. */
|
|
GNode *tgn = Targ_FindNode(gn->name, TARG_NOCREATE);
|
|
if (tgn != NULL)
|
|
gn = tgn;
|
|
}
|
|
|
|
Lst_Append(pgn->children, gn);
|
|
Lst_Append(gn->parents, pgn);
|
|
pgn->unmade += 1;
|
|
}
|
|
Lst_Close(cgn->children);
|
|
|
|
pgn->type |= cgn->type & ~(OP_OPMASK|OP_USE|OP_USEBEFORE|OP_TRANSFORM);
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* MakeHandleUse --
|
|
* Callback function for Lst_ForEach, used by Make_Run on the downward
|
|
* pass to handle .USE nodes. Should be called before the children
|
|
* are enqueued to be looked at by MakeAddChild.
|
|
* This function calls Make_HandleUse to copy the .USE node's commands,
|
|
* type flags and children to the parent node.
|
|
*
|
|
* Input:
|
|
* cgnp the child we've just examined
|
|
* pgnp the current parent
|
|
*
|
|
* Results:
|
|
* returns 0.
|
|
*
|
|
* Side Effects:
|
|
* After expansion, .USE child nodes are removed from the parent
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
static int
|
|
MakeHandleUse(void *cgnp, void *pgnp)
|
|
{
|
|
GNode *cgn = (GNode *)cgnp;
|
|
GNode *pgn = (GNode *)pgnp;
|
|
LstNode ln; /* An element in the children list */
|
|
int unmarked;
|
|
|
|
unmarked = ((cgn->type & OP_MARK) == 0);
|
|
cgn->type |= OP_MARK;
|
|
|
|
if ((cgn->type & (OP_USE|OP_USEBEFORE)) == 0)
|
|
return 0;
|
|
|
|
if (unmarked)
|
|
Make_HandleUse(cgn, pgn);
|
|
|
|
/*
|
|
* This child node is now "made", so we decrement the count of
|
|
* unmade children in the parent... We also remove the child
|
|
* from the parent's list to accurately reflect the number of decent
|
|
* children the parent has. This is used by Make_Run to decide
|
|
* whether to queue the parent or examine its children...
|
|
*/
|
|
if ((ln = Lst_FindDatum(pgn->children, cgn)) != NULL) {
|
|
Lst_Remove(pgn->children, ln);
|
|
pgn->unmade--;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* Make_Recheck --
|
|
* Check the modification time of a gnode, and update it as described
|
|
* in the comments below.
|
|
*
|
|
* Results:
|
|
* returns 0 if the gnode does not exist, or its filesystem
|
|
* time if it does.
|
|
*
|
|
* Side Effects:
|
|
* the gnode's modification time and path name are affected.
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
time_t
|
|
Make_Recheck(GNode *gn)
|
|
{
|
|
time_t mtime = Dir_MTime(gn, 1);
|
|
|
|
#ifndef RECHECK
|
|
/*
|
|
* We can't re-stat the thing, but we can at least take care of rules
|
|
* where a target depends on a source that actually creates the
|
|
* target, but only if it has changed, e.g.
|
|
*
|
|
* parse.h : parse.o
|
|
*
|
|
* parse.o : parse.y
|
|
* yacc -d parse.y
|
|
* cc -c y.tab.c
|
|
* mv y.tab.o parse.o
|
|
* cmp -s y.tab.h parse.h || mv y.tab.h parse.h
|
|
*
|
|
* In this case, if the definitions produced by yacc haven't changed
|
|
* from before, parse.h won't have been updated and gn->mtime will
|
|
* reflect the current modification time for parse.h. This is
|
|
* something of a kludge, I admit, but it's a useful one..
|
|
* XXX: People like to use a rule like
|
|
*
|
|
* FRC:
|
|
*
|
|
* To force things that depend on FRC to be made, so we have to
|
|
* check for gn->children being empty as well...
|
|
*/
|
|
if (!Lst_IsEmpty(gn->commands) || Lst_IsEmpty(gn->children)) {
|
|
gn->mtime = now;
|
|
}
|
|
#else
|
|
/*
|
|
* This is what Make does and it's actually a good thing, as it
|
|
* allows rules like
|
|
*
|
|
* cmp -s y.tab.h parse.h || cp y.tab.h parse.h
|
|
*
|
|
* to function as intended. Unfortunately, thanks to the stateless
|
|
* nature of NFS (by which I mean the loose coupling of two clients
|
|
* using the same file from a common server), there are times
|
|
* when the modification time of a file created on a remote
|
|
* machine will not be modified before the local stat() implied by
|
|
* the Dir_MTime occurs, thus leading us to believe that the file
|
|
* is unchanged, wreaking havoc with files that depend on this one.
|
|
*
|
|
* I have decided it is better to make too much than to make too
|
|
* little, so this stuff is commented out unless you're sure it's ok.
|
|
* -- ardeb 1/12/88
|
|
*/
|
|
/*
|
|
* Christos, 4/9/92: If we are saving commands pretend that
|
|
* the target is made now. Otherwise archives with ... rules
|
|
* don't work!
|
|
*/
|
|
if (NoExecute(gn) || (gn->type & OP_SAVE_CMDS) ||
|
|
(mtime == 0 && !(gn->type & OP_WAIT))) {
|
|
if (DEBUG(MAKE)) {
|
|
fprintf(debug_file, " recheck(%s): update time from %s to now\n",
|
|
gn->name, Targ_FmtTime(gn->mtime));
|
|
}
|
|
gn->mtime = now;
|
|
}
|
|
else {
|
|
if (DEBUG(MAKE)) {
|
|
fprintf(debug_file, " recheck(%s): current update time: %s\n",
|
|
gn->name, Targ_FmtTime(gn->mtime));
|
|
}
|
|
}
|
|
#endif
|
|
return mtime;
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* Make_Update --
|
|
* Perform update on the parents of a node. Used by JobFinish once
|
|
* a node has been dealt with and by MakeStartJobs if it finds an
|
|
* up-to-date node.
|
|
*
|
|
* Input:
|
|
* cgn the child node
|
|
*
|
|
* Results:
|
|
* Always returns 0
|
|
*
|
|
* Side Effects:
|
|
* The unmade field of pgn is decremented and pgn may be placed on
|
|
* the toBeMade queue if this field becomes 0.
|
|
*
|
|
* If the child was made, the parent's flag CHILDMADE field will be
|
|
* set true.
|
|
*
|
|
* If the child is not up-to-date and still does not exist,
|
|
* set the FORCE flag on the parents.
|
|
*
|
|
* If the child wasn't made, the cmgn field of the parent will be
|
|
* altered if the child's mtime is big enough.
|
|
*
|
|
* Finally, if the child is the implied source for the parent, the
|
|
* parent's IMPSRC variable is set appropriately.
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
void
|
|
Make_Update(GNode *cgn)
|
|
{
|
|
GNode *pgn; /* the parent node */
|
|
const char *cname; /* the child's name */
|
|
LstNode ln; /* Element in parents and implicitParents lists */
|
|
time_t mtime = -1;
|
|
char *p1;
|
|
Lst parents;
|
|
GNode *centurion;
|
|
|
|
/* It is save to re-examine any nodes again */
|
|
checked++;
|
|
|
|
cname = Var_Value(TARGET, cgn, &p1);
|
|
bmake_free(p1);
|
|
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "Make_Update: %s%s\n", cgn->name, cgn->cohort_num);
|
|
|
|
/*
|
|
* If the child was actually made, see what its modification time is
|
|
* now -- some rules won't actually update the file. If the file still
|
|
* doesn't exist, make its mtime now.
|
|
*/
|
|
if (cgn->made != UPTODATE) {
|
|
mtime = Make_Recheck(cgn);
|
|
}
|
|
|
|
/*
|
|
* If this is a `::' node, we must consult its first instance
|
|
* which is where all parents are linked.
|
|
*/
|
|
if ((centurion = cgn->centurion) != NULL) {
|
|
if (!Lst_IsEmpty(cgn->parents))
|
|
Punt("%s%s: cohort has parents", cgn->name, cgn->cohort_num);
|
|
centurion->unmade_cohorts -= 1;
|
|
if (centurion->unmade_cohorts < 0)
|
|
Error("Graph cycles through centurion %s", centurion->name);
|
|
} else {
|
|
centurion = cgn;
|
|
}
|
|
parents = centurion->parents;
|
|
|
|
/* If this was a .ORDER node, schedule the RHS */
|
|
Lst_ForEach(centurion->order_succ, MakeBuildParent, Lst_First(toBeMade));
|
|
|
|
/* Now mark all the parents as having one less unmade child */
|
|
Lst_Open(parents);
|
|
while ((ln = Lst_Next(parents)) != NULL) {
|
|
pgn = LstNode_Datum(ln);
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "inspect parent %s%s: flags %x, "
|
|
"type %x, made %d, unmade %d ",
|
|
pgn->name, pgn->cohort_num, pgn->flags,
|
|
pgn->type, pgn->made, pgn->unmade-1);
|
|
|
|
if (!(pgn->flags & REMAKE)) {
|
|
/* This parent isn't needed */
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "- not needed\n");
|
|
continue;
|
|
}
|
|
if (mtime == 0 && !(cgn->type & OP_WAIT))
|
|
pgn->flags |= FORCE;
|
|
|
|
/*
|
|
* If the parent has the .MADE attribute, its timestamp got
|
|
* updated to that of its newest child, and its unmake
|
|
* child count got set to zero in Make_ExpandUse().
|
|
* However other things might cause us to build one of its
|
|
* children - and so we mustn't do any processing here when
|
|
* the child build finishes.
|
|
*/
|
|
if (pgn->type & OP_MADE) {
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "- .MADE\n");
|
|
continue;
|
|
}
|
|
|
|
if ( ! (cgn->type & (OP_EXEC|OP_USE|OP_USEBEFORE))) {
|
|
if (cgn->made == MADE)
|
|
pgn->flags |= CHILDMADE;
|
|
(void)Make_TimeStamp(pgn, cgn);
|
|
}
|
|
|
|
/*
|
|
* A parent must wait for the completion of all instances
|
|
* of a `::' dependency.
|
|
*/
|
|
if (centurion->unmade_cohorts != 0 || centurion->made < MADE) {
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file,
|
|
"- centurion made %d, %d unmade cohorts\n",
|
|
centurion->made, centurion->unmade_cohorts);
|
|
continue;
|
|
}
|
|
|
|
/* One more child of this parent is now made */
|
|
pgn->unmade -= 1;
|
|
if (pgn->unmade < 0) {
|
|
if (DEBUG(MAKE)) {
|
|
fprintf(debug_file, "Graph cycles through %s%s\n",
|
|
pgn->name, pgn->cohort_num);
|
|
Targ_PrintGraph(2);
|
|
}
|
|
Error("Graph cycles through %s%s", pgn->name, pgn->cohort_num);
|
|
}
|
|
|
|
/* We must always rescan the parents of .WAIT and .ORDER nodes. */
|
|
if (pgn->unmade != 0 && !(centurion->type & OP_WAIT)
|
|
&& !(centurion->flags & DONE_ORDER)) {
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "- unmade children\n");
|
|
continue;
|
|
}
|
|
if (pgn->made != DEFERRED) {
|
|
/*
|
|
* Either this parent is on a different branch of the tree,
|
|
* or it on the RHS of a .WAIT directive
|
|
* or it is already on the toBeMade list.
|
|
*/
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "- not deferred\n");
|
|
continue;
|
|
}
|
|
assert(pgn->order_pred != NULL);
|
|
if (Lst_ForEach(pgn->order_pred, MakeCheckOrder, 0)) {
|
|
/* A .ORDER rule stops us building this */
|
|
continue;
|
|
}
|
|
if (DEBUG(MAKE)) {
|
|
static int two = 2;
|
|
fprintf(debug_file, "- %s%s made, schedule %s%s (made %d)\n",
|
|
cgn->name, cgn->cohort_num,
|
|
pgn->name, pgn->cohort_num, pgn->made);
|
|
Targ_PrintNode(pgn, &two);
|
|
}
|
|
/* Ok, we can schedule the parent again */
|
|
pgn->made = REQUESTED;
|
|
Lst_Enqueue(toBeMade, pgn);
|
|
}
|
|
Lst_Close(parents);
|
|
|
|
/*
|
|
* Set the .PREFIX and .IMPSRC variables for all the implied parents
|
|
* of this node.
|
|
*/
|
|
Lst_Open(cgn->implicitParents);
|
|
{
|
|
const char *cpref = Var_Value(PREFIX, cgn, &p1);
|
|
|
|
while ((ln = Lst_Next(cgn->implicitParents)) != NULL) {
|
|
pgn = LstNode_Datum(ln);
|
|
if (pgn->flags & REMAKE) {
|
|
Var_Set(IMPSRC, cname, pgn);
|
|
if (cpref != NULL)
|
|
Var_Set(PREFIX, cpref, pgn);
|
|
}
|
|
}
|
|
bmake_free(p1);
|
|
Lst_Close(cgn->implicitParents);
|
|
}
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* MakeAddAllSrc --
|
|
* Add a child's name to the ALLSRC and OODATE variables of the given
|
|
* node. Called from Make_DoAllVar via Lst_ForEach. A child is added only
|
|
* if it has not been given the .EXEC, .USE or .INVISIBLE attributes.
|
|
* .EXEC and .USE children are very rarely going to be files, so...
|
|
* If the child is a .JOIN node, its ALLSRC is propagated to the parent.
|
|
*
|
|
* A child is added to the OODATE variable if its modification time is
|
|
* later than that of its parent, as defined by Make, except if the
|
|
* parent is a .JOIN node. In that case, it is only added to the OODATE
|
|
* variable if it was actually made (since .JOIN nodes don't have
|
|
* modification times, the comparison is rather unfair...)..
|
|
*
|
|
* Results:
|
|
* Always returns 0
|
|
*
|
|
* Side Effects:
|
|
* The ALLSRC variable for the given node is extended.
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
static int
|
|
MakeUnmark(void *cgnp, void *pgnp MAKE_ATTR_UNUSED)
|
|
{
|
|
GNode *cgn = (GNode *)cgnp;
|
|
|
|
cgn->type &= ~OP_MARK;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Input:
|
|
* cgnp The child to add
|
|
* pgnp The parent to whose ALLSRC variable it should
|
|
* be added
|
|
*
|
|
*/
|
|
static int
|
|
MakeAddAllSrc(void *cgnp, void *pgnp)
|
|
{
|
|
GNode *cgn = (GNode *)cgnp;
|
|
GNode *pgn = (GNode *)pgnp;
|
|
|
|
if (cgn->type & OP_MARK)
|
|
return 0;
|
|
cgn->type |= OP_MARK;
|
|
|
|
if ((cgn->type & (OP_EXEC|OP_USE|OP_USEBEFORE|OP_INVISIBLE)) == 0) {
|
|
const char *child, *allsrc;
|
|
char *p1 = NULL, *p2 = NULL;
|
|
|
|
if (cgn->type & OP_ARCHV)
|
|
child = Var_Value(MEMBER, cgn, &p1);
|
|
else
|
|
child = cgn->path ? cgn->path : cgn->name;
|
|
if (cgn->type & OP_JOIN) {
|
|
allsrc = Var_Value(ALLSRC, cgn, &p2);
|
|
} else {
|
|
allsrc = child;
|
|
}
|
|
if (allsrc != NULL)
|
|
Var_Append(ALLSRC, allsrc, pgn);
|
|
bmake_free(p2);
|
|
if (pgn->type & OP_JOIN) {
|
|
if (cgn->made == MADE) {
|
|
Var_Append(OODATE, child, pgn);
|
|
}
|
|
} else if ((pgn->mtime < cgn->mtime) ||
|
|
(cgn->mtime >= now && cgn->made == MADE))
|
|
{
|
|
/*
|
|
* It goes in the OODATE variable if the parent is younger than the
|
|
* child or if the child has been modified more recently than
|
|
* the start of the make. This is to keep pmake from getting
|
|
* confused if something else updates the parent after the
|
|
* make starts (shouldn't happen, I know, but sometimes it
|
|
* does). In such a case, if we've updated the kid, the parent
|
|
* is likely to have a modification time later than that of
|
|
* the kid and anything that relies on the OODATE variable will
|
|
* be hosed.
|
|
*
|
|
* XXX: This will cause all made children to go in the OODATE
|
|
* variable, even if they're not touched, if RECHECK isn't defined,
|
|
* since cgn->mtime is set to now in Make_Update. According to
|
|
* some people, this is good...
|
|
*/
|
|
Var_Append(OODATE, child, pgn);
|
|
}
|
|
bmake_free(p1);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* Make_DoAllVar --
|
|
* Set up the ALLSRC and OODATE variables. Sad to say, it must be
|
|
* done separately, rather than while traversing the graph. This is
|
|
* because Make defined OODATE to contain all sources whose modification
|
|
* times were later than that of the target, *not* those sources that
|
|
* were out-of-date. Since in both compatibility and native modes,
|
|
* the modification time of the parent isn't found until the child
|
|
* has been dealt with, we have to wait until now to fill in the
|
|
* variable. As for ALLSRC, the ordering is important and not
|
|
* guaranteed when in native mode, so it must be set here, too.
|
|
*
|
|
* Results:
|
|
* None
|
|
*
|
|
* Side Effects:
|
|
* The ALLSRC and OODATE variables of the given node is filled in.
|
|
* If the node is a .JOIN node, its TARGET variable will be set to
|
|
* match its ALLSRC variable.
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
void
|
|
Make_DoAllVar(GNode *gn)
|
|
{
|
|
if (gn->flags & DONE_ALLSRC)
|
|
return;
|
|
|
|
Lst_ForEach(gn->children, MakeUnmark, gn);
|
|
Lst_ForEach(gn->children, MakeAddAllSrc, gn);
|
|
|
|
if (!Var_Exists (OODATE, gn)) {
|
|
Var_Set(OODATE, "", gn);
|
|
}
|
|
if (!Var_Exists (ALLSRC, gn)) {
|
|
Var_Set(ALLSRC, "", gn);
|
|
}
|
|
|
|
if (gn->type & OP_JOIN) {
|
|
char *p1;
|
|
Var_Set(TARGET, Var_Value(ALLSRC, gn, &p1), gn);
|
|
bmake_free(p1);
|
|
}
|
|
gn->flags |= DONE_ALLSRC;
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* MakeStartJobs --
|
|
* Start as many jobs as possible.
|
|
*
|
|
* Results:
|
|
* If the query flag was given to pmake, no job will be started,
|
|
* but as soon as an out-of-date target is found, this function
|
|
* returns TRUE. At all other times, this function returns FALSE.
|
|
*
|
|
* Side Effects:
|
|
* Nodes are removed from the toBeMade queue and job table slots
|
|
* are filled.
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
static int
|
|
MakeCheckOrder(void *v_bn, void *ignore MAKE_ATTR_UNUSED)
|
|
{
|
|
GNode *bn = v_bn;
|
|
|
|
if (bn->made >= MADE || !(bn->flags & REMAKE))
|
|
return 0;
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "MakeCheckOrder: Waiting for .ORDER node %s%s\n",
|
|
bn->name, bn->cohort_num);
|
|
return 1;
|
|
}
|
|
|
|
static int
|
|
MakeBuildChild(void *v_cn, void *toBeMade_next)
|
|
{
|
|
GNode *cn = v_cn;
|
|
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "MakeBuildChild: inspect %s%s, made %d, type %x\n",
|
|
cn->name, cn->cohort_num, cn->made, cn->type);
|
|
if (cn->made > DEFERRED)
|
|
return 0;
|
|
|
|
/* If this node is on the RHS of a .ORDER, check LHSs. */
|
|
assert(cn->order_pred);
|
|
if (Lst_ForEach(cn->order_pred, MakeCheckOrder, 0)) {
|
|
/* Can't build this (or anything else in this child list) yet */
|
|
cn->made = DEFERRED;
|
|
return 0; /* but keep looking */
|
|
}
|
|
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "MakeBuildChild: schedule %s%s\n",
|
|
cn->name, cn->cohort_num);
|
|
|
|
cn->made = REQUESTED;
|
|
if (toBeMade_next == NULL)
|
|
Lst_Append(toBeMade, cn);
|
|
else
|
|
Lst_InsertBefore(toBeMade, toBeMade_next, cn);
|
|
|
|
if (cn->unmade_cohorts != 0)
|
|
Lst_ForEach(cn->cohorts, MakeBuildChild, toBeMade_next);
|
|
|
|
/*
|
|
* If this node is a .WAIT node with unmade chlidren
|
|
* then don't add the next sibling.
|
|
*/
|
|
return cn->type & OP_WAIT && cn->unmade > 0;
|
|
}
|
|
|
|
/* When a .ORDER LHS node completes we do this on each RHS */
|
|
static int
|
|
MakeBuildParent(void *v_pn, void *toBeMade_next)
|
|
{
|
|
GNode *pn = v_pn;
|
|
|
|
if (pn->made != DEFERRED)
|
|
return 0;
|
|
|
|
if (MakeBuildChild(pn, toBeMade_next) == 0) {
|
|
/* Mark so that when this node is built we reschedule its parents */
|
|
pn->flags |= DONE_ORDER;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static Boolean
|
|
MakeStartJobs(void)
|
|
{
|
|
GNode *gn;
|
|
int have_token = 0;
|
|
|
|
while (!Lst_IsEmpty(toBeMade)) {
|
|
/* Get token now to avoid cycling job-list when we only have 1 token */
|
|
if (!have_token && !Job_TokenWithdraw())
|
|
break;
|
|
have_token = 1;
|
|
|
|
gn = Lst_Dequeue(toBeMade);
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "Examining %s%s...\n",
|
|
gn->name, gn->cohort_num);
|
|
|
|
if (gn->made != REQUESTED) {
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "state %d\n", gn->made);
|
|
|
|
make_abort(gn, __LINE__);
|
|
}
|
|
|
|
if (gn->checked == checked) {
|
|
/* We've already looked at this node since a job finished... */
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "already checked %s%s\n",
|
|
gn->name, gn->cohort_num);
|
|
gn->made = DEFERRED;
|
|
continue;
|
|
}
|
|
gn->checked = checked;
|
|
|
|
if (gn->unmade != 0) {
|
|
/*
|
|
* We can't build this yet, add all unmade children to toBeMade,
|
|
* just before the current first element.
|
|
*/
|
|
gn->made = DEFERRED;
|
|
Lst_ForEach(gn->children, MakeBuildChild, Lst_First(toBeMade));
|
|
/* and drop this node on the floor */
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "dropped %s%s\n", gn->name, gn->cohort_num);
|
|
continue;
|
|
}
|
|
|
|
gn->made = BEINGMADE;
|
|
if (Make_OODate(gn)) {
|
|
if (DEBUG(MAKE)) {
|
|
fprintf(debug_file, "out-of-date\n");
|
|
}
|
|
if (queryFlag) {
|
|
return TRUE;
|
|
}
|
|
Make_DoAllVar(gn);
|
|
Job_Make(gn);
|
|
have_token = 0;
|
|
} else {
|
|
if (DEBUG(MAKE)) {
|
|
fprintf(debug_file, "up-to-date\n");
|
|
}
|
|
gn->made = UPTODATE;
|
|
if (gn->type & OP_JOIN) {
|
|
/*
|
|
* Even for an up-to-date .JOIN node, we need it to have its
|
|
* context variables so references to it get the correct
|
|
* value for .TARGET when building up the context variables
|
|
* of its parent(s)...
|
|
*/
|
|
Make_DoAllVar(gn);
|
|
}
|
|
Make_Update(gn);
|
|
}
|
|
}
|
|
|
|
if (have_token)
|
|
Job_TokenReturn();
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* MakePrintStatus --
|
|
* Print the status of a top-level node, viz. it being up-to-date
|
|
* already or not created due to an error in a lower level.
|
|
* Callback function for Make_Run via Lst_ForEach.
|
|
*
|
|
* Input:
|
|
* gnp Node to examine
|
|
* cyclep True if gn->unmade being non-zero implies a
|
|
* cycle in the graph, not an error in an
|
|
* inferior.
|
|
*
|
|
* Results:
|
|
* Always returns 0.
|
|
*
|
|
* Side Effects:
|
|
* A message may be printed.
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
static int
|
|
MakePrintStatusOrder(void *ognp, void *gnp)
|
|
{
|
|
GNode *ogn = ognp;
|
|
GNode *gn = gnp;
|
|
|
|
if (!(ogn->flags & REMAKE) || ogn->made > REQUESTED)
|
|
/* not waiting for this one */
|
|
return 0;
|
|
|
|
printf(" `%s%s' has .ORDER dependency against %s%s ",
|
|
gn->name, gn->cohort_num, ogn->name, ogn->cohort_num);
|
|
GNode_FprintDetails(stdout, "(", ogn, ")\n");
|
|
|
|
if (DEBUG(MAKE) && debug_file != stdout) {
|
|
fprintf(debug_file, " `%s%s' has .ORDER dependency against %s%s ",
|
|
gn->name, gn->cohort_num, ogn->name, ogn->cohort_num);
|
|
GNode_FprintDetails(debug_file, "(", ogn, ")\n");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
MakePrintStatus(void *gnp, void *v_errors)
|
|
{
|
|
GNode *gn = (GNode *)gnp;
|
|
int *errors = v_errors;
|
|
|
|
if (gn->flags & DONECYCLE)
|
|
/* We've completely processed this node before, don't do it again. */
|
|
return 0;
|
|
|
|
if (gn->unmade == 0) {
|
|
gn->flags |= DONECYCLE;
|
|
switch (gn->made) {
|
|
case UPTODATE:
|
|
printf("`%s%s' is up to date.\n", gn->name, gn->cohort_num);
|
|
break;
|
|
case MADE:
|
|
break;
|
|
case UNMADE:
|
|
case DEFERRED:
|
|
case REQUESTED:
|
|
case BEINGMADE:
|
|
(*errors)++;
|
|
printf("`%s%s' was not built", gn->name, gn->cohort_num);
|
|
GNode_FprintDetails(stdout, " (", gn, ")!\n");
|
|
if (DEBUG(MAKE) && debug_file != stdout) {
|
|
fprintf(debug_file, "`%s%s' was not built",
|
|
gn->name, gn->cohort_num);
|
|
GNode_FprintDetails(debug_file, " (", gn, ")!\n");
|
|
}
|
|
/* Most likely problem is actually caused by .ORDER */
|
|
Lst_ForEach(gn->order_pred, MakePrintStatusOrder, gn);
|
|
break;
|
|
default:
|
|
/* Errors - already counted */
|
|
printf("`%s%s' not remade because of errors.\n",
|
|
gn->name, gn->cohort_num);
|
|
if (DEBUG(MAKE) && debug_file != stdout)
|
|
fprintf(debug_file, "`%s%s' not remade because of errors.\n",
|
|
gn->name, gn->cohort_num);
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "MakePrintStatus: %s%s has %d unmade children\n",
|
|
gn->name, gn->cohort_num, gn->unmade);
|
|
/*
|
|
* If printing cycles and came to one that has unmade children,
|
|
* print out the cycle by recursing on its children.
|
|
*/
|
|
if (!(gn->flags & CYCLE)) {
|
|
/* Fist time we've seen this node, check all children */
|
|
gn->flags |= CYCLE;
|
|
Lst_ForEach(gn->children, MakePrintStatus, errors);
|
|
/* Mark that this node needn't be processed again */
|
|
gn->flags |= DONECYCLE;
|
|
return 0;
|
|
}
|
|
|
|
/* Only output the error once per node */
|
|
gn->flags |= DONECYCLE;
|
|
Error("Graph cycles through `%s%s'", gn->name, gn->cohort_num);
|
|
if ((*errors)++ > 100)
|
|
/* Abandon the whole error report */
|
|
return 1;
|
|
|
|
/* Reporting for our children will give the rest of the loop */
|
|
Lst_ForEach(gn->children, MakePrintStatus, errors);
|
|
return 0;
|
|
}
|
|
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* Make_ExpandUse --
|
|
* Expand .USE nodes and create a new targets list
|
|
*
|
|
* Input:
|
|
* targs the initial list of targets
|
|
*
|
|
* Side Effects:
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
void
|
|
Make_ExpandUse(Lst targs)
|
|
{
|
|
GNode *gn; /* a temporary pointer */
|
|
Lst examine; /* List of targets to examine */
|
|
|
|
examine = Lst_Copy(targs, NULL);
|
|
|
|
/*
|
|
* Make an initial downward pass over the graph, marking nodes to be made
|
|
* as we go down. We call Suff_FindDeps to find where a node is and
|
|
* to get some children for it if it has none and also has no commands.
|
|
* If the node is a leaf, we stick it on the toBeMade queue to
|
|
* be looked at in a minute, otherwise we add its children to our queue
|
|
* and go on about our business.
|
|
*/
|
|
while (!Lst_IsEmpty(examine)) {
|
|
gn = Lst_Dequeue(examine);
|
|
|
|
if (gn->flags & REMAKE)
|
|
/* We've looked at this one already */
|
|
continue;
|
|
gn->flags |= REMAKE;
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "Make_ExpandUse: examine %s%s\n",
|
|
gn->name, gn->cohort_num);
|
|
|
|
if (gn->type & OP_DOUBLEDEP)
|
|
Lst_PrependAll(examine, gn->cohorts);
|
|
|
|
/*
|
|
* Apply any .USE rules before looking for implicit dependencies
|
|
* to make sure everything has commands that should...
|
|
* Make sure that the TARGET is set, so that we can make
|
|
* expansions.
|
|
*/
|
|
if (gn->type & OP_ARCHV) {
|
|
char *eoa, *eon;
|
|
eoa = strchr(gn->name, '(');
|
|
eon = strchr(gn->name, ')');
|
|
if (eoa == NULL || eon == NULL)
|
|
continue;
|
|
*eoa = '\0';
|
|
*eon = '\0';
|
|
Var_Set(MEMBER, eoa + 1, gn);
|
|
Var_Set(ARCHIVE, gn->name, gn);
|
|
*eoa = '(';
|
|
*eon = ')';
|
|
}
|
|
|
|
(void)Dir_MTime(gn, 0);
|
|
Var_Set(TARGET, gn->path ? gn->path : gn->name, gn);
|
|
Lst_ForEach(gn->children, MakeUnmark, gn);
|
|
Lst_ForEach(gn->children, MakeHandleUse, gn);
|
|
|
|
if ((gn->type & OP_MADE) == 0)
|
|
Suff_FindDeps(gn);
|
|
else {
|
|
/* Pretend we made all this node's children */
|
|
Lst_ForEach(gn->children, MakeFindChild, gn);
|
|
if (gn->unmade != 0)
|
|
printf("Warning: %s%s still has %d unmade children\n",
|
|
gn->name, gn->cohort_num, gn->unmade);
|
|
}
|
|
|
|
if (gn->unmade != 0)
|
|
Lst_ForEach(gn->children, MakeAddChild, examine);
|
|
}
|
|
|
|
Lst_Free(examine);
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* Make_ProcessWait --
|
|
* Convert .WAIT nodes into dependencies
|
|
*
|
|
* Input:
|
|
* targs the initial list of targets
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
|
|
static int
|
|
link_parent(void *cnp, void *pnp)
|
|
{
|
|
GNode *cn = cnp;
|
|
GNode *pn = pnp;
|
|
|
|
Lst_Append(pn->children, cn);
|
|
Lst_Append(cn->parents, pn);
|
|
pn->unmade++;
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
add_wait_dep(void *v_cn, void *v_wn)
|
|
{
|
|
GNode *cn = v_cn;
|
|
GNode *wn = v_wn;
|
|
|
|
if (cn == wn)
|
|
return 1;
|
|
|
|
if (cn == NULL || wn == NULL) {
|
|
printf("bad wait dep %p %p\n", cn, wn);
|
|
exit(4);
|
|
}
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, ".WAIT: add dependency %s%s -> %s\n",
|
|
cn->name, cn->cohort_num, wn->name);
|
|
|
|
Lst_Append(wn->children, cn);
|
|
wn->unmade++;
|
|
Lst_Append(cn->parents, wn);
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
Make_ProcessWait(Lst targs)
|
|
{
|
|
GNode *pgn; /* 'parent' node we are examining */
|
|
GNode *cgn; /* Each child in turn */
|
|
LstNode owln; /* Previous .WAIT node */
|
|
Lst examine; /* List of targets to examine */
|
|
LstNode ln;
|
|
|
|
/*
|
|
* We need all the nodes to have a common parent in order for the
|
|
* .WAIT and .ORDER scheduling to work.
|
|
* Perhaps this should be done earlier...
|
|
*/
|
|
|
|
pgn = Targ_NewGN(".MAIN");
|
|
pgn->flags = REMAKE;
|
|
pgn->type = OP_PHONY | OP_DEPENDS;
|
|
/* Get it displayed in the diag dumps */
|
|
Lst_Prepend(Targ_List(), pgn);
|
|
|
|
Lst_ForEach(targs, link_parent, pgn);
|
|
|
|
/* Start building with the 'dummy' .MAIN' node */
|
|
MakeBuildChild(pgn, NULL);
|
|
|
|
examine = Lst_Init();
|
|
Lst_Append(examine, pgn);
|
|
|
|
while (!Lst_IsEmpty(examine)) {
|
|
pgn = Lst_Dequeue(examine);
|
|
|
|
/* We only want to process each child-list once */
|
|
if (pgn->flags & DONE_WAIT)
|
|
continue;
|
|
pgn->flags |= DONE_WAIT;
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "Make_ProcessWait: examine %s\n", pgn->name);
|
|
|
|
if (pgn->type & OP_DOUBLEDEP)
|
|
Lst_PrependAll(examine, pgn->cohorts);
|
|
|
|
owln = Lst_First(pgn->children);
|
|
Lst_Open(pgn->children);
|
|
for (; (ln = Lst_Next(pgn->children)) != NULL; ) {
|
|
cgn = LstNode_Datum(ln);
|
|
if (cgn->type & OP_WAIT) {
|
|
/* Make the .WAIT node depend on the previous children */
|
|
Lst_ForEachFrom(pgn->children, owln, add_wait_dep, cgn);
|
|
owln = ln;
|
|
} else {
|
|
Lst_Append(examine, cgn);
|
|
}
|
|
}
|
|
Lst_Close(pgn->children);
|
|
}
|
|
|
|
Lst_Free(examine);
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* Make_Run --
|
|
* Initialize the nodes to remake and the list of nodes which are
|
|
* ready to be made by doing a breadth-first traversal of the graph
|
|
* starting from the nodes in the given list. Once this traversal
|
|
* is finished, all the 'leaves' of the graph are in the toBeMade
|
|
* queue.
|
|
* Using this queue and the Job module, work back up the graph,
|
|
* calling on MakeStartJobs to keep the job table as full as
|
|
* possible.
|
|
*
|
|
* Input:
|
|
* targs the initial list of targets
|
|
*
|
|
* Results:
|
|
* TRUE if work was done. FALSE otherwise.
|
|
*
|
|
* Side Effects:
|
|
* The make field of all nodes involved in the creation of the given
|
|
* targets is set to 1. The toBeMade list is set to contain all the
|
|
* 'leaves' of these subgraphs.
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
Boolean
|
|
Make_Run(Lst targs)
|
|
{
|
|
int errors; /* Number of errors the Job module reports */
|
|
|
|
/* Start trying to make the current targets... */
|
|
toBeMade = Lst_Init();
|
|
|
|
Make_ExpandUse(targs);
|
|
Make_ProcessWait(targs);
|
|
|
|
if (DEBUG(MAKE)) {
|
|
fprintf(debug_file, "#***# full graph\n");
|
|
Targ_PrintGraph(1);
|
|
}
|
|
|
|
if (queryFlag) {
|
|
/*
|
|
* We wouldn't do any work unless we could start some jobs in the
|
|
* next loop... (we won't actually start any, of course, this is just
|
|
* to see if any of the targets was out of date)
|
|
*/
|
|
return MakeStartJobs();
|
|
}
|
|
/*
|
|
* Initialization. At the moment, no jobs are running and until some
|
|
* get started, nothing will happen since the remaining upward
|
|
* traversal of the graph is performed by the routines in job.c upon
|
|
* the finishing of a job. So we fill the Job table as much as we can
|
|
* before going into our loop.
|
|
*/
|
|
(void)MakeStartJobs();
|
|
|
|
/*
|
|
* Main Loop: The idea here is that the ending of jobs will take
|
|
* care of the maintenance of data structures and the waiting for output
|
|
* will cause us to be idle most of the time while our children run as
|
|
* much as possible. Because the job table is kept as full as possible,
|
|
* the only time when it will be empty is when all the jobs which need
|
|
* running have been run, so that is the end condition of this loop.
|
|
* Note that the Job module will exit if there were any errors unless the
|
|
* keepgoing flag was given.
|
|
*/
|
|
while (!Lst_IsEmpty(toBeMade) || jobTokensRunning > 0) {
|
|
Job_CatchOutput();
|
|
(void)MakeStartJobs();
|
|
}
|
|
|
|
errors = Job_Finish();
|
|
|
|
/*
|
|
* Print the final status of each target. E.g. if it wasn't made
|
|
* because some inferior reported an error.
|
|
*/
|
|
if (DEBUG(MAKE))
|
|
fprintf(debug_file, "done: errors %d\n", errors);
|
|
if (errors == 0) {
|
|
Lst_ForEach(targs, MakePrintStatus, &errors);
|
|
if (DEBUG(MAKE)) {
|
|
fprintf(debug_file, "done: errors %d\n", errors);
|
|
if (errors)
|
|
Targ_PrintGraph(4);
|
|
}
|
|
}
|
|
return errors != 0;
|
|
}
|