a333d4f752
list was cleared. Rules with null suffixes would not be rebuilt when the suffixes were added again. Adding null suffix rules would fail when a rule for the same source was declared before the suffix list was cleared. PR: 23328, 24102 Reviewed by: will Approved by: rwatson
2447 lines
66 KiB
C
2447 lines
66 KiB
C
/*
|
||
* 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.
|
||
*
|
||
* @(#)suff.c 8.4 (Berkeley) 3/21/94
|
||
*/
|
||
|
||
#ifndef lint
|
||
#include <sys/cdefs.h>
|
||
__RCSID("$FreeBSD$");
|
||
#endif /* not lint */
|
||
|
||
/*-
|
||
* suff.c --
|
||
* Functions to maintain suffix lists and find implicit dependents
|
||
* using suffix transformation rules
|
||
*
|
||
* Interface:
|
||
* Suff_Init Initialize all things to do with suffixes.
|
||
*
|
||
* Suff_End Cleanup the module
|
||
*
|
||
* Suff_DoPaths This function is used to make life easier
|
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* when searching for a file according to its
|
||
* suffix. It takes the global search path,
|
||
* as defined using the .PATH: target, and appends
|
||
* its directories to the path of each of the
|
||
* defined suffixes, as specified using
|
||
* .PATH<suffix>: targets. In addition, all
|
||
* directories given for suffixes labeled as
|
||
* include files or libraries, using the .INCLUDES
|
||
* or .LIBS targets, are played with using
|
||
* Dir_MakeFlags to create the .INCLUDES and
|
||
* .LIBS global variables.
|
||
*
|
||
* Suff_ClearSuffixes Clear out all the suffixes and defined
|
||
* transformations.
|
||
*
|
||
* Suff_IsTransform Return TRUE if the passed string is the lhs
|
||
* of a transformation rule.
|
||
*
|
||
* Suff_AddSuffix Add the passed string as another known suffix.
|
||
*
|
||
* Suff_GetPath Return the search path for the given suffix.
|
||
*
|
||
* Suff_AddInclude Mark the given suffix as denoting an include
|
||
* file.
|
||
*
|
||
* Suff_AddLib Mark the given suffix as denoting a library.
|
||
*
|
||
* Suff_AddTransform Add another transformation to the suffix
|
||
* graph. Returns GNode suitable for framing, I
|
||
* mean, tacking commands, attributes, etc. on.
|
||
*
|
||
* Suff_SetNull Define the suffix to consider the suffix of
|
||
* any file that doesn't have a known one.
|
||
*
|
||
* Suff_FindDeps Find implicit sources for and the location of
|
||
* a target based on its suffix. Returns the
|
||
* bottom-most node added to the graph or NULL
|
||
* if the target had no implicit sources.
|
||
*/
|
||
|
||
#include <stdio.h>
|
||
#include "make.h"
|
||
#include "hash.h"
|
||
#include "dir.h"
|
||
|
||
static Lst sufflist; /* Lst of suffixes */
|
||
static Lst suffClean; /* Lst of suffixes to be cleaned */
|
||
static Lst srclist; /* Lst of sources */
|
||
static Lst transforms; /* Lst of transformation rules */
|
||
|
||
static int sNum = 0; /* Counter for assigning suffix numbers */
|
||
|
||
/*
|
||
* Structure describing an individual suffix.
|
||
*/
|
||
typedef struct _Suff {
|
||
char *name; /* The suffix itself */
|
||
int nameLen; /* Length of the suffix */
|
||
short flags; /* Type of suffix */
|
||
#define SUFF_INCLUDE 0x01 /* One which is #include'd */
|
||
#define SUFF_LIBRARY 0x02 /* One which contains a library */
|
||
#define SUFF_NULL 0x04 /* The empty suffix */
|
||
Lst searchPath; /* The path along which files of this suffix
|
||
* may be found */
|
||
int sNum; /* The suffix number */
|
||
int refCount; /* Reference count of list membership */
|
||
Lst parents; /* Suffixes we have a transformation to */
|
||
Lst children; /* Suffixes we have a transformation from */
|
||
Lst ref; /* List of lists this suffix is referenced */
|
||
} Suff;
|
||
|
||
/*
|
||
* Structure used in the search for implied sources.
|
||
*/
|
||
typedef struct _Src {
|
||
char *file; /* The file to look for */
|
||
char *pref; /* Prefix from which file was formed */
|
||
Suff *suff; /* The suffix on the file */
|
||
struct _Src *parent; /* The Src for which this is a source */
|
||
GNode *node; /* The node describing the file */
|
||
int children; /* Count of existing children (so we don't free
|
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* this thing too early or never nuke it) */
|
||
#ifdef DEBUG_SRC
|
||
Lst cp; /* Debug; children list */
|
||
#endif
|
||
} Src;
|
||
|
||
/*
|
||
* A structure for passing more than one argument to the Lst-library-invoked
|
||
* function...
|
||
*/
|
||
typedef struct {
|
||
Lst l;
|
||
Src *s;
|
||
} LstSrc;
|
||
|
||
static Suff *suffNull; /* The NULL suffix for this run */
|
||
static Suff *emptySuff; /* The empty suffix required for POSIX
|
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* single-suffix transformation rules */
|
||
|
||
|
||
static char *SuffStrIsPrefix __P((char *, char *));
|
||
static char *SuffSuffIsSuffix __P((Suff *, char *));
|
||
static int SuffSuffIsSuffixP __P((void *, void *));
|
||
static int SuffSuffHasNameP __P((void *, void *));
|
||
static int SuffSuffIsPrefix __P((void *, void *));
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||
static int SuffGNHasNameP __P((void *, void *));
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||
static void SuffFree __P((void *));
|
||
static void SuffInsert __P((Lst, Suff *));
|
||
static void SuffRemove __P((Lst, Suff *));
|
||
static Boolean SuffParseTransform __P((char *, Suff **, Suff **));
|
||
static int SuffRebuildGraph __P((void *, void *));
|
||
static int SuffAddSrc __P((void *, void *));
|
||
static int SuffRemoveSrc __P((Lst));
|
||
static void SuffAddLevel __P((Lst, Src *));
|
||
static Src *SuffFindThem __P((Lst, Lst));
|
||
static Src *SuffFindCmds __P((Src *, Lst));
|
||
static int SuffExpandChildren __P((void *, void *));
|
||
static Boolean SuffApplyTransform __P((GNode *, GNode *, Suff *, Suff *));
|
||
static void SuffFindDeps __P((GNode *, Lst));
|
||
static void SuffFindArchiveDeps __P((GNode *, Lst));
|
||
static void SuffFindNormalDeps __P((GNode *, Lst));
|
||
static int SuffPrintName __P((void *, void *));
|
||
static int SuffPrintSuff __P((void *, void *));
|
||
static int SuffPrintTrans __P((void *, void *));
|
||
|
||
/*************** Lst Predicates ****************/
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffStrIsPrefix --
|
||
* See if pref is a prefix of str.
|
||
*
|
||
* Results:
|
||
* NULL if it ain't, pointer to character in str after prefix if so
|
||
*
|
||
* Side Effects:
|
||
* None
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static char *
|
||
SuffStrIsPrefix (pref, str)
|
||
register char *pref; /* possible prefix */
|
||
register char *str; /* string to check */
|
||
{
|
||
while (*str && *pref == *str) {
|
||
pref++;
|
||
str++;
|
||
}
|
||
|
||
return (*pref ? NULL : str);
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffSuffIsSuffix --
|
||
* See if suff is a suffix of str. Str should point to THE END of the
|
||
* string to check. (THE END == the null byte)
|
||
*
|
||
* Results:
|
||
* NULL if it ain't, pointer to character in str before suffix if
|
||
* it is.
|
||
*
|
||
* Side Effects:
|
||
* None
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static char *
|
||
SuffSuffIsSuffix (s, str)
|
||
register Suff *s; /* possible suffix */
|
||
char *str; /* string to examine */
|
||
{
|
||
register char *p1; /* Pointer into suffix name */
|
||
register char *p2; /* Pointer into string being examined */
|
||
|
||
p1 = s->name + s->nameLen;
|
||
p2 = str;
|
||
|
||
while (p1 >= s->name && *p1 == *p2) {
|
||
p1--;
|
||
p2--;
|
||
}
|
||
|
||
return (p1 == s->name - 1 ? p2 : NULL);
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffSuffIsSuffixP --
|
||
* Predicate form of SuffSuffIsSuffix. Passed as the callback function
|
||
* to Lst_Find.
|
||
*
|
||
* Results:
|
||
* 0 if the suffix is the one desired, non-zero if not.
|
||
*
|
||
* Side Effects:
|
||
* None.
|
||
*
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static int
|
||
SuffSuffIsSuffixP(s, str)
|
||
void * s;
|
||
void * str;
|
||
{
|
||
return(!SuffSuffIsSuffix((Suff *) s, (char *) str));
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffSuffHasNameP --
|
||
* Callback procedure for finding a suffix based on its name. Used by
|
||
* Suff_GetPath.
|
||
*
|
||
* Results:
|
||
* 0 if the suffix is of the given name. non-zero otherwise.
|
||
*
|
||
* Side Effects:
|
||
* None
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static int
|
||
SuffSuffHasNameP (s, sname)
|
||
void * s; /* Suffix to check */
|
||
void * sname; /* Desired name */
|
||
{
|
||
return (strcmp ((char *) sname, ((Suff *) s)->name));
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffSuffIsPrefix --
|
||
* See if the suffix described by s is a prefix of the string. Care
|
||
* must be taken when using this to search for transformations and
|
||
* what-not, since there could well be two suffixes, one of which
|
||
* is a prefix of the other...
|
||
*
|
||
* Results:
|
||
* 0 if s is a prefix of str. non-zero otherwise
|
||
*
|
||
* Side Effects:
|
||
* None
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static int
|
||
SuffSuffIsPrefix (s, str)
|
||
void * s; /* suffix to compare */
|
||
void * str; /* string to examine */
|
||
{
|
||
return (SuffStrIsPrefix (((Suff *) s)->name, (char *) str) == NULL ? 1 : 0);
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffGNHasNameP --
|
||
* See if the graph node has the desired name
|
||
*
|
||
* Results:
|
||
* 0 if it does. non-zero if it doesn't
|
||
*
|
||
* Side Effects:
|
||
* None
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static int
|
||
SuffGNHasNameP (gn, name)
|
||
void * gn; /* current node we're looking at */
|
||
void * name; /* name we're looking for */
|
||
{
|
||
return (strcmp ((char *) name, ((GNode *) gn)->name));
|
||
}
|
||
|
||
/*********** Maintenance Functions ************/
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffFree --
|
||
* Free up all memory associated with the given suffix structure.
|
||
*
|
||
* Results:
|
||
* none
|
||
*
|
||
* Side Effects:
|
||
* the suffix entry is detroyed
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static void
|
||
SuffFree (sp)
|
||
void * sp;
|
||
{
|
||
Suff *s = (Suff *) sp;
|
||
|
||
if (s == suffNull)
|
||
suffNull = NULL;
|
||
|
||
if (s == emptySuff)
|
||
emptySuff = NULL;
|
||
|
||
Lst_Destroy (s->ref, NOFREE);
|
||
Lst_Destroy (s->children, NOFREE);
|
||
Lst_Destroy (s->parents, NOFREE);
|
||
Lst_Destroy (s->searchPath, Dir_Destroy);
|
||
|
||
free (s->name);
|
||
free (s);
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffRemove --
|
||
* Remove the suffix into the list
|
||
*
|
||
* Results:
|
||
* None
|
||
*
|
||
* Side Effects:
|
||
* The reference count for the suffix is decremented
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static void
|
||
SuffRemove(l, s)
|
||
Lst l;
|
||
Suff *s;
|
||
{
|
||
LstNode ln = Lst_Member(l, (void *)s);
|
||
if (ln != NULL) {
|
||
Lst_Remove(l, ln);
|
||
s->refCount--;
|
||
}
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffInsert --
|
||
* Insert the suffix into the list keeping the list ordered by suffix
|
||
* numbers.
|
||
*
|
||
* Results:
|
||
* None
|
||
*
|
||
* Side Effects:
|
||
* The reference count of the suffix is incremented
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static void
|
||
SuffInsert (l, s)
|
||
Lst l; /* the list where in s should be inserted */
|
||
Suff *s; /* the suffix to insert */
|
||
{
|
||
LstNode ln; /* current element in l we're examining */
|
||
Suff *s2 = NULL; /* the suffix descriptor in this element */
|
||
|
||
if (Lst_Open (l) == FAILURE) {
|
||
return;
|
||
}
|
||
while ((ln = Lst_Next (l)) != NULL) {
|
||
s2 = (Suff *) Lst_Datum (ln);
|
||
if (s2->sNum >= s->sNum) {
|
||
break;
|
||
}
|
||
}
|
||
|
||
Lst_Close (l);
|
||
if (DEBUG(SUFF)) {
|
||
printf("inserting %s(%d)...", s->name, s->sNum);
|
||
}
|
||
if (ln == NULL) {
|
||
if (DEBUG(SUFF)) {
|
||
printf("at end of list\n");
|
||
}
|
||
(void)Lst_AtEnd (l, (void *)s);
|
||
s->refCount++;
|
||
(void)Lst_AtEnd(s->ref, (void *) l);
|
||
} else if (s2->sNum != s->sNum) {
|
||
if (DEBUG(SUFF)) {
|
||
printf("before %s(%d)\n", s2->name, s2->sNum);
|
||
}
|
||
(void)Lst_Insert (l, ln, (void *)s);
|
||
s->refCount++;
|
||
(void)Lst_AtEnd(s->ref, (void *) l);
|
||
} else if (DEBUG(SUFF)) {
|
||
printf("already there\n");
|
||
}
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* Suff_ClearSuffixes --
|
||
* This is gross. Nuke the list of suffixes but keep all transformation
|
||
* rules around. The transformation graph is destroyed in this process,
|
||
* but we leave the list of rules so when a new graph is formed the rules
|
||
* will remain.
|
||
* This function is called from the parse module when a
|
||
* .SUFFIXES:\n line is encountered.
|
||
*
|
||
* Results:
|
||
* none
|
||
*
|
||
* Side Effects:
|
||
* the sufflist and its graph nodes are destroyed
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
void
|
||
Suff_ClearSuffixes ()
|
||
{
|
||
Lst_Concat (suffClean, sufflist, LST_CONCLINK);
|
||
sufflist = Lst_Init(FALSE);
|
||
sNum = 1;
|
||
suffNull = emptySuff;
|
||
/*
|
||
* Clear suffNull's children list (the other suffixes are built new, but
|
||
* suffNull is used as is).
|
||
* NOFREE is used because all suffixes are are on the suffClean list.
|
||
* suffNull should not have parents.
|
||
*/
|
||
Lst_Destroy(suffNull->children, NOFREE);
|
||
suffNull->children = Lst_Init(FALSE);
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffParseTransform --
|
||
* Parse a transformation string to find its two component suffixes.
|
||
*
|
||
* Results:
|
||
* TRUE if the string is a valid transformation and FALSE otherwise.
|
||
*
|
||
* Side Effects:
|
||
* The passed pointers are overwritten.
|
||
*
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static Boolean
|
||
SuffParseTransform(str, srcPtr, targPtr)
|
||
char *str; /* String being parsed */
|
||
Suff **srcPtr; /* Place to store source of trans. */
|
||
Suff **targPtr; /* Place to store target of trans. */
|
||
{
|
||
register LstNode srcLn; /* element in suffix list of trans source*/
|
||
register Suff *src; /* Source of transformation */
|
||
register LstNode targLn; /* element in suffix list of trans target*/
|
||
register char *str2; /* Extra pointer (maybe target suffix) */
|
||
LstNode singleLn; /* element in suffix list of any suffix
|
||
* that exactly matches str */
|
||
Suff *single = NULL;/* Source of possible transformation to
|
||
* null suffix */
|
||
|
||
srcLn = NULL;
|
||
singleLn = NULL;
|
||
|
||
/*
|
||
* Loop looking first for a suffix that matches the start of the
|
||
* string and then for one that exactly matches the rest of it. If
|
||
* we can find two that meet these criteria, we've successfully
|
||
* parsed the string.
|
||
*/
|
||
for (;;) {
|
||
if (srcLn == NULL) {
|
||
srcLn = Lst_Find(sufflist, (void *)str, SuffSuffIsPrefix);
|
||
} else {
|
||
srcLn = Lst_FindFrom (sufflist, Lst_Succ(srcLn), (void *)str,
|
||
SuffSuffIsPrefix);
|
||
}
|
||
if (srcLn == NULL) {
|
||
/*
|
||
* Ran out of source suffixes -- no such rule
|
||
*/
|
||
if (singleLn != NULL) {
|
||
/*
|
||
* Not so fast Mr. Smith! There was a suffix that encompassed
|
||
* the entire string, so we assume it was a transformation
|
||
* to the null suffix (thank you POSIX). We still prefer to
|
||
* find a double rule over a singleton, hence we leave this
|
||
* check until the end.
|
||
*
|
||
* XXX: Use emptySuff over suffNull?
|
||
*/
|
||
*srcPtr = single;
|
||
*targPtr = suffNull;
|
||
return(TRUE);
|
||
}
|
||
return (FALSE);
|
||
}
|
||
src = (Suff *) Lst_Datum (srcLn);
|
||
str2 = str + src->nameLen;
|
||
if (*str2 == '\0') {
|
||
single = src;
|
||
singleLn = srcLn;
|
||
} else {
|
||
targLn = Lst_Find(sufflist, (void *)str2, SuffSuffHasNameP);
|
||
if (targLn != NULL) {
|
||
*srcPtr = src;
|
||
*targPtr = (Suff *)Lst_Datum(targLn);
|
||
return (TRUE);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* Suff_IsTransform --
|
||
* Return TRUE if the given string is a transformation rule
|
||
*
|
||
*
|
||
* Results:
|
||
* TRUE if the string is a concatenation of two known suffixes.
|
||
* FALSE otherwise
|
||
*
|
||
* Side Effects:
|
||
* None
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
Boolean
|
||
Suff_IsTransform (str)
|
||
char *str; /* string to check */
|
||
{
|
||
Suff *src, *targ;
|
||
|
||
return (SuffParseTransform(str, &src, &targ));
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* Suff_AddTransform --
|
||
* Add the transformation rule described by the line to the
|
||
* list of rules and place the transformation itself in the graph
|
||
*
|
||
* Results:
|
||
* The node created for the transformation in the transforms list
|
||
*
|
||
* Side Effects:
|
||
* The node is placed on the end of the transforms Lst and links are
|
||
* made between the two suffixes mentioned in the target name
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
GNode *
|
||
Suff_AddTransform (line)
|
||
char *line; /* name of transformation to add */
|
||
{
|
||
GNode *gn; /* GNode of transformation rule */
|
||
Suff *s, /* source suffix */
|
||
*t; /* target suffix */
|
||
LstNode ln; /* Node for existing transformation */
|
||
|
||
ln = Lst_Find (transforms, (void *)line, SuffGNHasNameP);
|
||
if (ln == NULL) {
|
||
/*
|
||
* Make a new graph node for the transformation. It will be filled in
|
||
* by the Parse module.
|
||
*/
|
||
gn = Targ_NewGN (line);
|
||
(void)Lst_AtEnd (transforms, (void *)gn);
|
||
} else {
|
||
/*
|
||
* New specification for transformation rule. Just nuke the old list
|
||
* of commands so they can be filled in again... We don't actually
|
||
* free the commands themselves, because a given command can be
|
||
* attached to several different transformations.
|
||
*/
|
||
gn = (GNode *) Lst_Datum (ln);
|
||
Lst_Destroy (gn->commands, NOFREE);
|
||
Lst_Destroy (gn->children, NOFREE);
|
||
gn->commands = Lst_Init (FALSE);
|
||
gn->children = Lst_Init (FALSE);
|
||
}
|
||
|
||
gn->type = OP_TRANSFORM;
|
||
|
||
(void)SuffParseTransform(line, &s, &t);
|
||
|
||
/*
|
||
* link the two together in the proper relationship and order
|
||
*/
|
||
if (DEBUG(SUFF)) {
|
||
printf("defining transformation from `%s' to `%s'\n",
|
||
s->name, t->name);
|
||
}
|
||
SuffInsert (t->children, s);
|
||
SuffInsert (s->parents, t);
|
||
|
||
return (gn);
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* Suff_EndTransform --
|
||
* Handle the finish of a transformation definition, removing the
|
||
* transformation from the graph if it has neither commands nor
|
||
* sources. This is a callback procedure for the Parse module via
|
||
* Lst_ForEach
|
||
*
|
||
* Results:
|
||
* === 0
|
||
*
|
||
* Side Effects:
|
||
* If the node has no commands or children, the children and parents
|
||
* lists of the affected suffices are altered.
|
||
*
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
int
|
||
Suff_EndTransform(gnp, dummy)
|
||
void * gnp; /* Node for transformation */
|
||
void * dummy; /* Node for transformation */
|
||
{
|
||
GNode *gn = (GNode *) gnp;
|
||
|
||
if ((gn->type & OP_TRANSFORM) && Lst_IsEmpty(gn->commands) &&
|
||
Lst_IsEmpty(gn->children))
|
||
{
|
||
Suff *s, *t;
|
||
|
||
(void)SuffParseTransform(gn->name, &s, &t);
|
||
|
||
if (DEBUG(SUFF)) {
|
||
printf("deleting transformation from `%s' to `%s'\n",
|
||
s->name, t->name);
|
||
}
|
||
|
||
/*
|
||
* Remove the source from the target's children list. We check for a
|
||
* NULL return to handle a beanhead saying something like
|
||
* .c.o .c.o:
|
||
*
|
||
* We'll be called twice when the next target is seen, but .c and .o
|
||
* are only linked once...
|
||
*/
|
||
SuffRemove(t->children, s);
|
||
|
||
/*
|
||
* Remove the target from the source's parents list
|
||
*/
|
||
SuffRemove(s->parents, t);
|
||
} else if ((gn->type & OP_TRANSFORM) && DEBUG(SUFF)) {
|
||
printf("transformation %s complete\n", gn->name);
|
||
}
|
||
|
||
return(dummy ? 0 : 0);
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffRebuildGraph --
|
||
* Called from Suff_AddSuffix via Lst_ForEach to search through the
|
||
* list of existing transformation rules and rebuild the transformation
|
||
* graph when it has been destroyed by Suff_ClearSuffixes. If the
|
||
* given rule is a transformation involving this suffix and another,
|
||
* existing suffix, the proper relationship is established between
|
||
* the two.
|
||
*
|
||
* Results:
|
||
* Always 0.
|
||
*
|
||
* Side Effects:
|
||
* The appropriate links will be made between this suffix and
|
||
* others if transformation rules exist for it.
|
||
*
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static int
|
||
SuffRebuildGraph(transformp, sp)
|
||
void * transformp; /* Transformation to test */
|
||
void * sp; /* Suffix to rebuild */
|
||
{
|
||
GNode *transform = (GNode *) transformp;
|
||
Suff *s = (Suff *) sp;
|
||
char *cp;
|
||
LstNode ln;
|
||
Suff *s2 = NULL;
|
||
|
||
/*
|
||
* First see if it is a transformation from this suffix.
|
||
*/
|
||
cp = SuffStrIsPrefix(s->name, transform->name);
|
||
if (cp != (char *)NULL) {
|
||
if (cp[0] == '\0') /* null rule */
|
||
s2 = suffNull;
|
||
else {
|
||
ln = Lst_Find(sufflist, (void *)cp, SuffSuffHasNameP);
|
||
if (ln != NULL)
|
||
s2 = (Suff *)Lst_Datum(ln);
|
||
}
|
||
if (s2 != NULL) {
|
||
/*
|
||
* Found target. Link in and return, since it can't be anything
|
||
* else.
|
||
*/
|
||
SuffInsert(s2->children, s);
|
||
SuffInsert(s->parents, s2);
|
||
return(0);
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Not from, maybe to?
|
||
*/
|
||
cp = SuffSuffIsSuffix(s, transform->name + strlen(transform->name));
|
||
if (cp != (char *)NULL) {
|
||
/*
|
||
* Null-terminate the source suffix in order to find it.
|
||
*/
|
||
cp[1] = '\0';
|
||
ln = Lst_Find(sufflist, (void *)transform->name, SuffSuffHasNameP);
|
||
/*
|
||
* Replace the start of the target suffix
|
||
*/
|
||
cp[1] = s->name[0];
|
||
if (ln != NULL) {
|
||
/*
|
||
* Found it -- establish the proper relationship
|
||
*/
|
||
s2 = (Suff *)Lst_Datum(ln);
|
||
SuffInsert(s->children, s2);
|
||
SuffInsert(s2->parents, s);
|
||
}
|
||
}
|
||
return(0);
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* Suff_AddSuffix --
|
||
* Add the suffix in string to the end of the list of known suffixes.
|
||
* Should we restructure the suffix graph? Make doesn't...
|
||
*
|
||
* Results:
|
||
* None
|
||
*
|
||
* Side Effects:
|
||
* A GNode is created for the suffix and a Suff structure is created and
|
||
* added to the suffixes list unless the suffix was already known.
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
void
|
||
Suff_AddSuffix (str)
|
||
char *str; /* the name of the suffix to add */
|
||
{
|
||
Suff *s; /* new suffix descriptor */
|
||
LstNode ln;
|
||
|
||
ln = Lst_Find (sufflist, (void *)str, SuffSuffHasNameP);
|
||
if (ln == NULL) {
|
||
s = (Suff *) emalloc (sizeof (Suff));
|
||
|
||
s->name = estrdup (str);
|
||
s->nameLen = strlen (s->name);
|
||
s->searchPath = Lst_Init (FALSE);
|
||
s->children = Lst_Init (FALSE);
|
||
s->parents = Lst_Init (FALSE);
|
||
s->ref = Lst_Init (FALSE);
|
||
s->sNum = sNum++;
|
||
s->flags = 0;
|
||
s->refCount = 0;
|
||
|
||
(void)Lst_AtEnd (sufflist, (void *)s);
|
||
/*
|
||
* Look for any existing transformations from or to this suffix.
|
||
* XXX: Only do this after a Suff_ClearSuffixes?
|
||
*/
|
||
Lst_ForEach (transforms, SuffRebuildGraph, (void *)s);
|
||
}
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* Suff_GetPath --
|
||
* Return the search path for the given suffix, if it's defined.
|
||
*
|
||
* Results:
|
||
* The searchPath for the desired suffix or NULL if the suffix isn't
|
||
* defined.
|
||
*
|
||
* Side Effects:
|
||
* None
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
Lst
|
||
Suff_GetPath (sname)
|
||
char *sname;
|
||
{
|
||
LstNode ln;
|
||
Suff *s;
|
||
|
||
ln = Lst_Find (sufflist, (void *)sname, SuffSuffHasNameP);
|
||
if (ln == NULL) {
|
||
return (NULL);
|
||
} else {
|
||
s = (Suff *) Lst_Datum (ln);
|
||
return (s->searchPath);
|
||
}
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* Suff_DoPaths --
|
||
* Extend the search paths for all suffixes to include the default
|
||
* search path.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side Effects:
|
||
* The searchPath field of all the suffixes is extended by the
|
||
* directories in dirSearchPath. If paths were specified for the
|
||
* ".h" suffix, the directories are stuffed into a global variable
|
||
* called ".INCLUDES" with each directory preceded by a -I. The same
|
||
* is done for the ".a" suffix, except the variable is called
|
||
* ".LIBS" and the flag is -L.
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
void
|
||
Suff_DoPaths()
|
||
{
|
||
register Suff *s;
|
||
register LstNode ln;
|
||
char *ptr;
|
||
Lst inIncludes; /* Cumulative .INCLUDES path */
|
||
Lst inLibs; /* Cumulative .LIBS path */
|
||
|
||
if (Lst_Open (sufflist) == FAILURE) {
|
||
return;
|
||
}
|
||
|
||
inIncludes = Lst_Init(FALSE);
|
||
inLibs = Lst_Init(FALSE);
|
||
|
||
while ((ln = Lst_Next (sufflist)) != NULL) {
|
||
s = (Suff *) Lst_Datum (ln);
|
||
if (!Lst_IsEmpty (s->searchPath)) {
|
||
#ifdef INCLUDES
|
||
if (s->flags & SUFF_INCLUDE) {
|
||
Dir_Concat(inIncludes, s->searchPath);
|
||
}
|
||
#endif /* INCLUDES */
|
||
#ifdef LIBRARIES
|
||
if (s->flags & SUFF_LIBRARY) {
|
||
Dir_Concat(inLibs, s->searchPath);
|
||
}
|
||
#endif /* LIBRARIES */
|
||
Dir_Concat(s->searchPath, dirSearchPath);
|
||
} else {
|
||
Lst_Destroy (s->searchPath, Dir_Destroy);
|
||
s->searchPath = Lst_Duplicate(dirSearchPath, Dir_CopyDir);
|
||
}
|
||
}
|
||
|
||
Var_Set(".INCLUDES", ptr = Dir_MakeFlags("-I", inIncludes), VAR_GLOBAL);
|
||
free(ptr);
|
||
Var_Set(".LIBS", ptr = Dir_MakeFlags("-L", inLibs), VAR_GLOBAL);
|
||
free(ptr);
|
||
|
||
Lst_Destroy(inIncludes, Dir_Destroy);
|
||
Lst_Destroy(inLibs, Dir_Destroy);
|
||
|
||
Lst_Close (sufflist);
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* Suff_AddInclude --
|
||
* Add the given suffix as a type of file which gets included.
|
||
* Called from the parse module when a .INCLUDES line is parsed.
|
||
* The suffix must have already been defined.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side Effects:
|
||
* The SUFF_INCLUDE bit is set in the suffix's flags field
|
||
*
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
void
|
||
Suff_AddInclude (sname)
|
||
char *sname; /* Name of suffix to mark */
|
||
{
|
||
LstNode ln;
|
||
Suff *s;
|
||
|
||
ln = Lst_Find (sufflist, (void *)sname, SuffSuffHasNameP);
|
||
if (ln != NULL) {
|
||
s = (Suff *) Lst_Datum (ln);
|
||
s->flags |= SUFF_INCLUDE;
|
||
}
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* Suff_AddLib --
|
||
* Add the given suffix as a type of file which is a library.
|
||
* Called from the parse module when parsing a .LIBS line. The
|
||
* suffix must have been defined via .SUFFIXES before this is
|
||
* called.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side Effects:
|
||
* The SUFF_LIBRARY bit is set in the suffix's flags field
|
||
*
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
void
|
||
Suff_AddLib (sname)
|
||
char *sname; /* Name of suffix to mark */
|
||
{
|
||
LstNode ln;
|
||
Suff *s;
|
||
|
||
ln = Lst_Find (sufflist, (void *)sname, SuffSuffHasNameP);
|
||
if (ln != NULL) {
|
||
s = (Suff *) Lst_Datum (ln);
|
||
s->flags |= SUFF_LIBRARY;
|
||
}
|
||
}
|
||
|
||
/********** Implicit Source Search Functions *********/
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffAddSrc --
|
||
* Add a suffix as a Src structure to the given list with its parent
|
||
* being the given Src structure. If the suffix is the null suffix,
|
||
* the prefix is used unaltered as the file name in the Src structure.
|
||
*
|
||
* Results:
|
||
* always returns 0
|
||
*
|
||
* Side Effects:
|
||
* A Src structure is created and tacked onto the end of the list
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static int
|
||
SuffAddSrc (sp, lsp)
|
||
void * sp; /* suffix for which to create a Src structure */
|
||
void * lsp; /* list and parent for the new Src */
|
||
{
|
||
Suff *s = (Suff *) sp;
|
||
LstSrc *ls = (LstSrc *) lsp;
|
||
Src *s2; /* new Src structure */
|
||
Src *targ; /* Target structure */
|
||
|
||
targ = ls->s;
|
||
|
||
if ((s->flags & SUFF_NULL) && (*s->name != '\0')) {
|
||
/*
|
||
* If the suffix has been marked as the NULL suffix, also create a Src
|
||
* structure for a file with no suffix attached. Two birds, and all
|
||
* that...
|
||
*/
|
||
s2 = (Src *) emalloc (sizeof (Src));
|
||
s2->file = estrdup(targ->pref);
|
||
s2->pref = targ->pref;
|
||
s2->parent = targ;
|
||
s2->node = NULL;
|
||
s2->suff = s;
|
||
s->refCount++;
|
||
s2->children = 0;
|
||
targ->children += 1;
|
||
(void)Lst_AtEnd (ls->l, (void *)s2);
|
||
#ifdef DEBUG_SRC
|
||
s2->cp = Lst_Init(FALSE);
|
||
Lst_AtEnd(targ->cp, (void *) s2);
|
||
printf("1 add %x %x to %x:", targ, s2, ls->l);
|
||
Lst_ForEach(ls->l, PrintAddr, (void *) 0);
|
||
printf("\n");
|
||
#endif
|
||
}
|
||
s2 = (Src *) emalloc (sizeof (Src));
|
||
s2->file = str_concat (targ->pref, s->name, 0);
|
||
s2->pref = targ->pref;
|
||
s2->parent = targ;
|
||
s2->node = NULL;
|
||
s2->suff = s;
|
||
s->refCount++;
|
||
s2->children = 0;
|
||
targ->children += 1;
|
||
(void)Lst_AtEnd (ls->l, (void *)s2);
|
||
#ifdef DEBUG_SRC
|
||
s2->cp = Lst_Init(FALSE);
|
||
Lst_AtEnd(targ->cp, (void *) s2);
|
||
printf("2 add %x %x to %x:", targ, s2, ls->l);
|
||
Lst_ForEach(ls->l, PrintAddr, (void *) 0);
|
||
printf("\n");
|
||
#endif
|
||
|
||
return(0);
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffAddLevel --
|
||
* Add all the children of targ as Src structures to the given list
|
||
*
|
||
* Results:
|
||
* None
|
||
*
|
||
* Side Effects:
|
||
* Lots of structures are created and added to the list
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static void
|
||
SuffAddLevel (l, targ)
|
||
Lst l; /* list to which to add the new level */
|
||
Src *targ; /* Src structure to use as the parent */
|
||
{
|
||
LstSrc ls;
|
||
|
||
ls.s = targ;
|
||
ls.l = l;
|
||
|
||
Lst_ForEach (targ->suff->children, SuffAddSrc, (void *)&ls);
|
||
}
|
||
|
||
/*-
|
||
*----------------------------------------------------------------------
|
||
* SuffRemoveSrc --
|
||
* Free all src structures in list that don't have a reference count
|
||
*
|
||
* Results:
|
||
* Ture if an src was removed
|
||
*
|
||
* Side Effects:
|
||
* The memory is free'd.
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
static int
|
||
SuffRemoveSrc (l)
|
||
Lst l;
|
||
{
|
||
LstNode ln;
|
||
Src *s;
|
||
int t = 0;
|
||
|
||
if (Lst_Open (l) == FAILURE) {
|
||
return 0;
|
||
}
|
||
#ifdef DEBUG_SRC
|
||
printf("cleaning %lx: ", (unsigned long) l);
|
||
Lst_ForEach(l, PrintAddr, (void *) 0);
|
||
printf("\n");
|
||
#endif
|
||
|
||
|
||
while ((ln = Lst_Next (l)) != NULL) {
|
||
s = (Src *) Lst_Datum (ln);
|
||
if (s->children == 0) {
|
||
free (s->file);
|
||
if (!s->parent)
|
||
free(s->pref);
|
||
else {
|
||
#ifdef DEBUG_SRC
|
||
LstNode ln = Lst_Member(s->parent->cp, (void *)s);
|
||
if (ln != NULL)
|
||
Lst_Remove(s->parent->cp, ln);
|
||
#endif
|
||
--s->parent->children;
|
||
}
|
||
#ifdef DEBUG_SRC
|
||
printf("free: [l=%x] p=%x %d\n", l, s, s->children);
|
||
Lst_Destroy(s->cp, NOFREE);
|
||
#endif
|
||
Lst_Remove(l, ln);
|
||
free (s);
|
||
t |= 1;
|
||
Lst_Close(l);
|
||
return TRUE;
|
||
}
|
||
#ifdef DEBUG_SRC
|
||
else {
|
||
printf("keep: [l=%x] p=%x %d: ", l, s, s->children);
|
||
Lst_ForEach(s->cp, PrintAddr, (void *) 0);
|
||
printf("\n");
|
||
}
|
||
#endif
|
||
}
|
||
|
||
Lst_Close(l);
|
||
|
||
return t;
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffFindThem --
|
||
* Find the first existing file/target in the list srcs
|
||
*
|
||
* Results:
|
||
* The lowest structure in the chain of transformations
|
||
*
|
||
* Side Effects:
|
||
* None
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static Src *
|
||
SuffFindThem (srcs, slst)
|
||
Lst srcs; /* list of Src structures to search through */
|
||
Lst slst;
|
||
{
|
||
Src *s; /* current Src */
|
||
Src *rs; /* returned Src */
|
||
char *ptr;
|
||
|
||
rs = (Src *) NULL;
|
||
|
||
while (!Lst_IsEmpty (srcs)) {
|
||
s = (Src *) Lst_DeQueue (srcs);
|
||
|
||
if (DEBUG(SUFF)) {
|
||
printf ("\ttrying %s...", s->file);
|
||
}
|
||
|
||
/*
|
||
* A file is considered to exist if either a node exists in the
|
||
* graph for it or the file actually exists.
|
||
*/
|
||
if (Targ_FindNode(s->file, TARG_NOCREATE) != NULL) {
|
||
#ifdef DEBUG_SRC
|
||
printf("remove %x from %x\n", s, srcs);
|
||
#endif
|
||
rs = s;
|
||
break;
|
||
}
|
||
|
||
if ((ptr = Dir_FindFile (s->file, s->suff->searchPath)) != NULL) {
|
||
rs = s;
|
||
#ifdef DEBUG_SRC
|
||
printf("remove %x from %x\n", s, srcs);
|
||
#endif
|
||
free(ptr);
|
||
break;
|
||
}
|
||
|
||
if (DEBUG(SUFF)) {
|
||
printf ("not there\n");
|
||
}
|
||
|
||
SuffAddLevel (srcs, s);
|
||
Lst_AtEnd(slst, (void *) s);
|
||
}
|
||
|
||
if (DEBUG(SUFF) && rs) {
|
||
printf ("got it\n");
|
||
}
|
||
return (rs);
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffFindCmds --
|
||
* See if any of the children of the target in the Src structure is
|
||
* one from which the target can be transformed. If there is one,
|
||
* a Src structure is put together for it and returned.
|
||
*
|
||
* Results:
|
||
* The Src structure of the "winning" child, or NULL if no such beast.
|
||
*
|
||
* Side Effects:
|
||
* A Src structure may be allocated.
|
||
*
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static Src *
|
||
SuffFindCmds (targ, slst)
|
||
Src *targ; /* Src structure to play with */
|
||
Lst slst;
|
||
{
|
||
LstNode ln; /* General-purpose list node */
|
||
register GNode *t, /* Target GNode */
|
||
*s; /* Source GNode */
|
||
int prefLen;/* The length of the defined prefix */
|
||
Suff *suff; /* Suffix on matching beastie */
|
||
Src *ret; /* Return value */
|
||
char *cp;
|
||
|
||
t = targ->node;
|
||
(void) Lst_Open (t->children);
|
||
prefLen = strlen (targ->pref);
|
||
|
||
while ((ln = Lst_Next (t->children)) != NULL) {
|
||
s = (GNode *)Lst_Datum (ln);
|
||
|
||
cp = strrchr (s->name, '/');
|
||
if (cp == (char *)NULL) {
|
||
cp = s->name;
|
||
} else {
|
||
cp++;
|
||
}
|
||
if (strncmp (cp, targ->pref, prefLen) == 0) {
|
||
/*
|
||
* The node matches the prefix ok, see if it has a known
|
||
* suffix.
|
||
*/
|
||
ln = Lst_Find (sufflist, (void *)&cp[prefLen],
|
||
SuffSuffHasNameP);
|
||
if (ln != NULL) {
|
||
/*
|
||
* It even has a known suffix, see if there's a transformation
|
||
* defined between the node's suffix and the target's suffix.
|
||
*
|
||
* XXX: Handle multi-stage transformations here, too.
|
||
*/
|
||
suff = (Suff *)Lst_Datum (ln);
|
||
|
||
if (Lst_Member (suff->parents,
|
||
(void *)targ->suff) != NULL)
|
||
{
|
||
/*
|
||
* Hot Damn! Create a new Src structure to describe
|
||
* this transformation (making sure to duplicate the
|
||
* source node's name so Suff_FindDeps can free it
|
||
* again (ick)), and return the new structure.
|
||
*/
|
||
ret = (Src *)emalloc (sizeof (Src));
|
||
ret->file = estrdup(s->name);
|
||
ret->pref = targ->pref;
|
||
ret->suff = suff;
|
||
suff->refCount++;
|
||
ret->parent = targ;
|
||
ret->node = s;
|
||
ret->children = 0;
|
||
targ->children += 1;
|
||
#ifdef DEBUG_SRC
|
||
ret->cp = Lst_Init(FALSE);
|
||
printf("3 add %x %x\n", targ, ret);
|
||
Lst_AtEnd(targ->cp, (void *) ret);
|
||
#endif
|
||
Lst_AtEnd(slst, (void *) ret);
|
||
if (DEBUG(SUFF)) {
|
||
printf ("\tusing existing source %s\n", s->name);
|
||
}
|
||
return (ret);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
Lst_Close (t->children);
|
||
return ((Src *)NULL);
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffExpandChildren --
|
||
* Expand the names of any children of a given node that contain
|
||
* variable invocations or file wildcards into actual targets.
|
||
*
|
||
* Results:
|
||
* === 0 (continue)
|
||
*
|
||
* Side Effects:
|
||
* The expanded node is removed from the parent's list of children,
|
||
* and the parent's unmade counter is decremented, but other nodes
|
||
* may be added.
|
||
*
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static int
|
||
SuffExpandChildren(cgnp, pgnp)
|
||
void * cgnp; /* Child to examine */
|
||
void * pgnp; /* Parent node being processed */
|
||
{
|
||
GNode *cgn = (GNode *) cgnp;
|
||
GNode *pgn = (GNode *) pgnp;
|
||
GNode *gn; /* New source 8) */
|
||
LstNode prevLN; /* Node after which new source should be put */
|
||
LstNode ln; /* List element for old source */
|
||
char *cp; /* Expanded value */
|
||
|
||
/*
|
||
* New nodes effectively take the place of the child, so place them
|
||
* after the child
|
||
*/
|
||
prevLN = Lst_Member(pgn->children, (void *)cgn);
|
||
|
||
/*
|
||
* First do variable expansion -- this takes precedence over
|
||
* wildcard expansion. If the result contains wildcards, they'll be gotten
|
||
* to later since the resulting words are tacked on to the end of
|
||
* the children list.
|
||
*/
|
||
if (strchr(cgn->name, '$') != (char *)NULL) {
|
||
if (DEBUG(SUFF)) {
|
||
printf("Expanding \"%s\"...", cgn->name);
|
||
}
|
||
cp = Var_Subst(NULL, cgn->name, pgn, TRUE);
|
||
|
||
if (cp != (char *)NULL) {
|
||
Lst members = Lst_Init(FALSE);
|
||
|
||
if (cgn->type & OP_ARCHV) {
|
||
/*
|
||
* Node was an archive(member) target, so we want to call
|
||
* on the Arch module to find the nodes for us, expanding
|
||
* variables in the parent's context.
|
||
*/
|
||
char *sacrifice = cp;
|
||
|
||
(void)Arch_ParseArchive(&sacrifice, members, pgn);
|
||
} else {
|
||
/*
|
||
* Break the result into a vector of strings whose nodes
|
||
* we can find, then add those nodes to the members list.
|
||
* Unfortunately, we can't use brk_string b/c it
|
||
* doesn't understand about variable specifications with
|
||
* spaces in them...
|
||
*/
|
||
char *start;
|
||
char *initcp = cp; /* For freeing... */
|
||
|
||
for (start = cp; *start == ' ' || *start == '\t'; start++)
|
||
continue;
|
||
for (cp = start; *cp != '\0'; cp++) {
|
||
if (*cp == ' ' || *cp == '\t') {
|
||
/*
|
||
* White-space -- terminate element, find the node,
|
||
* add it, skip any further spaces.
|
||
*/
|
||
*cp++ = '\0';
|
||
gn = Targ_FindNode(start, TARG_CREATE);
|
||
(void)Lst_AtEnd(members, (void *)gn);
|
||
while (*cp == ' ' || *cp == '\t') {
|
||
cp++;
|
||
}
|
||
/*
|
||
* Adjust cp for increment at start of loop, but
|
||
* set start to first non-space.
|
||
*/
|
||
start = cp--;
|
||
} else if (*cp == '$') {
|
||
/*
|
||
* Start of a variable spec -- contact variable module
|
||
* to find the end so we can skip over it.
|
||
*/
|
||
char *junk;
|
||
int len;
|
||
Boolean doFree;
|
||
|
||
junk = Var_Parse(cp, pgn, TRUE, &len, &doFree);
|
||
if (junk != var_Error) {
|
||
cp += len - 1;
|
||
}
|
||
|
||
if (doFree) {
|
||
free(junk);
|
||
}
|
||
} else if (*cp == '\\' && *cp != '\0') {
|
||
/*
|
||
* Escaped something -- skip over it
|
||
*/
|
||
cp++;
|
||
}
|
||
}
|
||
|
||
if (cp != start) {
|
||
/*
|
||
* Stuff left over -- add it to the list too
|
||
*/
|
||
gn = Targ_FindNode(start, TARG_CREATE);
|
||
(void)Lst_AtEnd(members, (void *)gn);
|
||
}
|
||
/*
|
||
* Point cp back at the beginning again so the variable value
|
||
* can be freed.
|
||
*/
|
||
cp = initcp;
|
||
}
|
||
/*
|
||
* Add all elements of the members list to the parent node.
|
||
*/
|
||
while(!Lst_IsEmpty(members)) {
|
||
gn = (GNode *)Lst_DeQueue(members);
|
||
|
||
if (DEBUG(SUFF)) {
|
||
printf("%s...", gn->name);
|
||
}
|
||
if (Lst_Member(pgn->children, (void *)gn) == NULL) {
|
||
(void)Lst_Append(pgn->children, prevLN, (void *)gn);
|
||
prevLN = Lst_Succ(prevLN);
|
||
(void)Lst_AtEnd(gn->parents, (void *)pgn);
|
||
pgn->unmade++;
|
||
}
|
||
}
|
||
Lst_Destroy(members, NOFREE);
|
||
/*
|
||
* Free the result
|
||
*/
|
||
free((char *)cp);
|
||
}
|
||
/*
|
||
* Now the source is expanded, remove it from the list of children to
|
||
* keep it from being processed.
|
||
*/
|
||
ln = Lst_Member(pgn->children, (void *)cgn);
|
||
pgn->unmade--;
|
||
Lst_Remove(pgn->children, ln);
|
||
if (DEBUG(SUFF)) {
|
||
printf("\n");
|
||
}
|
||
} else if (Dir_HasWildcards(cgn->name)) {
|
||
Lst exp; /* List of expansions */
|
||
Lst path; /* Search path along which to expand */
|
||
|
||
/*
|
||
* Find a path along which to expand the word.
|
||
*
|
||
* If the word has a known suffix, use that path.
|
||
* If it has no known suffix and we're allowed to use the null
|
||
* suffix, use its path.
|
||
* Else use the default system search path.
|
||
*/
|
||
cp = cgn->name + strlen(cgn->name);
|
||
ln = Lst_Find(sufflist, (void *)cp, SuffSuffIsSuffixP);
|
||
|
||
if (DEBUG(SUFF)) {
|
||
printf("Wildcard expanding \"%s\"...", cgn->name);
|
||
}
|
||
|
||
if (ln != NULL) {
|
||
Suff *s = (Suff *)Lst_Datum(ln);
|
||
|
||
if (DEBUG(SUFF)) {
|
||
printf("suffix is \"%s\"...", s->name);
|
||
}
|
||
path = s->searchPath;
|
||
} else {
|
||
/*
|
||
* Use default search path
|
||
*/
|
||
path = dirSearchPath;
|
||
}
|
||
|
||
/*
|
||
* Expand the word along the chosen path
|
||
*/
|
||
exp = Lst_Init(FALSE);
|
||
Dir_Expand(cgn->name, path, exp);
|
||
|
||
while (!Lst_IsEmpty(exp)) {
|
||
/*
|
||
* Fetch next expansion off the list and find its GNode
|
||
*/
|
||
cp = (char *)Lst_DeQueue(exp);
|
||
|
||
if (DEBUG(SUFF)) {
|
||
printf("%s...", cp);
|
||
}
|
||
gn = Targ_FindNode(cp, TARG_CREATE);
|
||
|
||
/*
|
||
* If gn isn't already a child of the parent, make it so and
|
||
* up the parent's count of unmade children.
|
||
*/
|
||
if (Lst_Member(pgn->children, (void *)gn) == NULL) {
|
||
(void)Lst_Append(pgn->children, prevLN, (void *)gn);
|
||
prevLN = Lst_Succ(prevLN);
|
||
(void)Lst_AtEnd(gn->parents, (void *)pgn);
|
||
pgn->unmade++;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Nuke what's left of the list
|
||
*/
|
||
Lst_Destroy(exp, NOFREE);
|
||
|
||
/*
|
||
* Now the source is expanded, remove it from the list of children to
|
||
* keep it from being processed.
|
||
*/
|
||
ln = Lst_Member(pgn->children, (void *)cgn);
|
||
pgn->unmade--;
|
||
Lst_Remove(pgn->children, ln);
|
||
if (DEBUG(SUFF)) {
|
||
printf("\n");
|
||
}
|
||
}
|
||
|
||
return(0);
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffApplyTransform --
|
||
* Apply a transformation rule, given the source and target nodes
|
||
* and suffixes.
|
||
*
|
||
* Results:
|
||
* TRUE if successful, FALSE if not.
|
||
*
|
||
* Side Effects:
|
||
* The source and target are linked and the commands from the
|
||
* transformation are added to the target node's commands list.
|
||
* All attributes but OP_DEPMASK and OP_TRANSFORM are applied
|
||
* to the target. The target also inherits all the sources for
|
||
* the transformation rule.
|
||
*
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static Boolean
|
||
SuffApplyTransform(tGn, sGn, t, s)
|
||
GNode *tGn; /* Target node */
|
||
GNode *sGn; /* Source node */
|
||
Suff *t; /* Target suffix */
|
||
Suff *s; /* Source suffix */
|
||
{
|
||
LstNode ln; /* General node */
|
||
char *tname; /* Name of transformation rule */
|
||
GNode *gn; /* Node for same */
|
||
|
||
if (Lst_Member(tGn->children, (void *)sGn) == NULL) {
|
||
/*
|
||
* Not already linked, so form the proper links between the
|
||
* target and source.
|
||
*/
|
||
(void)Lst_AtEnd(tGn->children, (void *)sGn);
|
||
(void)Lst_AtEnd(sGn->parents, (void *)tGn);
|
||
tGn->unmade += 1;
|
||
}
|
||
|
||
if ((sGn->type & OP_OPMASK) == OP_DOUBLEDEP) {
|
||
/*
|
||
* When a :: node is used as the implied source of a node, we have
|
||
* to link all its cohorts in as sources as well. Only the initial
|
||
* sGn gets the target in its iParents list, however, as that
|
||
* will be sufficient to get the .IMPSRC variable set for tGn
|
||
*/
|
||
for (ln=Lst_First(sGn->cohorts); ln != NULL; ln=Lst_Succ(ln)) {
|
||
gn = (GNode *)Lst_Datum(ln);
|
||
|
||
if (Lst_Member(tGn->children, (void *)gn) == NULL) {
|
||
/*
|
||
* Not already linked, so form the proper links between the
|
||
* target and source.
|
||
*/
|
||
(void)Lst_AtEnd(tGn->children, (void *)gn);
|
||
(void)Lst_AtEnd(gn->parents, (void *)tGn);
|
||
tGn->unmade += 1;
|
||
}
|
||
}
|
||
}
|
||
/*
|
||
* Locate the transformation rule itself
|
||
*/
|
||
tname = str_concat(s->name, t->name, 0);
|
||
ln = Lst_Find(transforms, (void *)tname, SuffGNHasNameP);
|
||
free(tname);
|
||
|
||
if (ln == NULL) {
|
||
/*
|
||
* Not really such a transformation rule (can happen when we're
|
||
* called to link an OP_MEMBER and OP_ARCHV node), so return
|
||
* FALSE.
|
||
*/
|
||
return(FALSE);
|
||
}
|
||
|
||
gn = (GNode *)Lst_Datum(ln);
|
||
|
||
if (DEBUG(SUFF)) {
|
||
printf("\tapplying %s -> %s to \"%s\"\n", s->name, t->name, tGn->name);
|
||
}
|
||
|
||
/*
|
||
* Record last child for expansion purposes
|
||
*/
|
||
ln = Lst_Last(tGn->children);
|
||
|
||
/*
|
||
* Pass the buck to Make_HandleUse to apply the rule
|
||
*/
|
||
(void)Make_HandleUse(gn, tGn);
|
||
|
||
/*
|
||
* Deal with wildcards and variables in any acquired sources
|
||
*/
|
||
ln = Lst_Succ(ln);
|
||
if (ln != NULL) {
|
||
Lst_ForEachFrom(tGn->children, ln,
|
||
SuffExpandChildren, (void *)tGn);
|
||
}
|
||
|
||
/*
|
||
* Keep track of another parent to which this beast is transformed so
|
||
* the .IMPSRC variable can be set correctly for the parent.
|
||
*/
|
||
(void)Lst_AtEnd(sGn->iParents, (void *)tGn);
|
||
|
||
return(TRUE);
|
||
}
|
||
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffFindArchiveDeps --
|
||
* Locate dependencies for an OP_ARCHV node.
|
||
*
|
||
* Results:
|
||
* None
|
||
*
|
||
* Side Effects:
|
||
* Same as Suff_FindDeps
|
||
*
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static void
|
||
SuffFindArchiveDeps(gn, slst)
|
||
GNode *gn; /* Node for which to locate dependencies */
|
||
Lst slst;
|
||
{
|
||
char *eoarch; /* End of archive portion */
|
||
char *eoname; /* End of member portion */
|
||
GNode *mem; /* Node for member */
|
||
static char *copy[] = { /* Variables to be copied from the member node */
|
||
TARGET, /* Must be first */
|
||
PREFIX, /* Must be second */
|
||
};
|
||
int i; /* Index into copy and vals */
|
||
Suff *ms; /* Suffix descriptor for member */
|
||
char *name; /* Start of member's name */
|
||
|
||
/*
|
||
* The node is an archive(member) pair. so we must find a
|
||
* suffix for both of them.
|
||
*/
|
||
eoarch = strchr (gn->name, '(');
|
||
eoname = strchr (eoarch, ')');
|
||
|
||
*eoname = '\0'; /* Nuke parentheses during suffix search */
|
||
*eoarch = '\0'; /* So a suffix can be found */
|
||
|
||
name = eoarch + 1;
|
||
|
||
/*
|
||
* To simplify things, call Suff_FindDeps recursively on the member now,
|
||
* so we can simply compare the member's .PREFIX and .TARGET variables
|
||
* to locate its suffix. This allows us to figure out the suffix to
|
||
* use for the archive without having to do a quadratic search over the
|
||
* suffix list, backtracking for each one...
|
||
*/
|
||
mem = Targ_FindNode(name, TARG_CREATE);
|
||
SuffFindDeps(mem, slst);
|
||
|
||
/*
|
||
* Create the link between the two nodes right off
|
||
*/
|
||
if (Lst_Member(gn->children, (void *)mem) == NULL) {
|
||
(void)Lst_AtEnd(gn->children, (void *)mem);
|
||
(void)Lst_AtEnd(mem->parents, (void *)gn);
|
||
gn->unmade += 1;
|
||
}
|
||
|
||
/*
|
||
* Copy in the variables from the member node to this one.
|
||
*/
|
||
for (i = (sizeof(copy)/sizeof(copy[0]))-1; i >= 0; i--) {
|
||
char *p1;
|
||
Var_Set(copy[i], Var_Value(copy[i], mem, &p1), gn);
|
||
efree(p1);
|
||
|
||
}
|
||
|
||
ms = mem->suffix;
|
||
if (ms == NULL) {
|
||
/*
|
||
* Didn't know what it was -- use .NULL suffix if not in make mode
|
||
*/
|
||
if (DEBUG(SUFF)) {
|
||
printf("using null suffix\n");
|
||
}
|
||
ms = suffNull;
|
||
}
|
||
|
||
|
||
/*
|
||
* Set the other two local variables required for this target.
|
||
*/
|
||
Var_Set (MEMBER, name, gn);
|
||
Var_Set (ARCHIVE, gn->name, gn);
|
||
|
||
if (ms != NULL) {
|
||
/*
|
||
* Member has a known suffix, so look for a transformation rule from
|
||
* it to a possible suffix of the archive. Rather than searching
|
||
* through the entire list, we just look at suffixes to which the
|
||
* member's suffix may be transformed...
|
||
*/
|
||
LstNode ln;
|
||
|
||
/*
|
||
* Use first matching suffix...
|
||
*/
|
||
ln = Lst_Find(ms->parents, eoarch, SuffSuffIsSuffixP);
|
||
|
||
if (ln != NULL) {
|
||
/*
|
||
* Got one -- apply it
|
||
*/
|
||
if (!SuffApplyTransform(gn, mem, (Suff *)Lst_Datum(ln), ms) &&
|
||
DEBUG(SUFF))
|
||
{
|
||
printf("\tNo transformation from %s -> %s\n",
|
||
ms->name, ((Suff *)Lst_Datum(ln))->name);
|
||
}
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Replace the opening and closing parens now we've no need of the separate
|
||
* pieces.
|
||
*/
|
||
*eoarch = '('; *eoname = ')';
|
||
|
||
/*
|
||
* Pretend gn appeared to the left of a dependency operator so
|
||
* the user needn't provide a transformation from the member to the
|
||
* archive.
|
||
*/
|
||
if (OP_NOP(gn->type)) {
|
||
gn->type |= OP_DEPENDS;
|
||
}
|
||
|
||
/*
|
||
* Flag the member as such so we remember to look in the archive for
|
||
* its modification time.
|
||
*/
|
||
mem->type |= OP_MEMBER;
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* SuffFindNormalDeps --
|
||
* Locate implicit dependencies for regular targets.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side Effects:
|
||
* Same as Suff_FindDeps...
|
||
*
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
static void
|
||
SuffFindNormalDeps(gn, slst)
|
||
GNode *gn; /* Node for which to find sources */
|
||
Lst slst;
|
||
{
|
||
char *eoname; /* End of name */
|
||
char *sopref; /* Start of prefix */
|
||
LstNode ln; /* Next suffix node to check */
|
||
Lst srcs; /* List of sources at which to look */
|
||
Lst targs; /* List of targets to which things can be
|
||
* transformed. They all have the same file,
|
||
* but different suff and pref fields */
|
||
Src *bottom; /* Start of found transformation path */
|
||
Src *src; /* General Src pointer */
|
||
char *pref; /* Prefix to use */
|
||
Src *targ; /* General Src target pointer */
|
||
|
||
|
||
eoname = gn->name + strlen(gn->name);
|
||
|
||
sopref = gn->name;
|
||
|
||
/*
|
||
* Begin at the beginning...
|
||
*/
|
||
ln = Lst_First(sufflist);
|
||
srcs = Lst_Init(FALSE);
|
||
targs = Lst_Init(FALSE);
|
||
|
||
/*
|
||
* We're caught in a catch-22 here. On the one hand, we want to use any
|
||
* transformation implied by the target's sources, but we can't examine
|
||
* the sources until we've expanded any variables/wildcards they may hold,
|
||
* and we can't do that until we've set up the target's local variables
|
||
* and we can't do that until we know what the proper suffix for the
|
||
* target is (in case there are two suffixes one of which is a suffix of
|
||
* the other) and we can't know that until we've found its implied
|
||
* source, which we may not want to use if there's an existing source
|
||
* that implies a different transformation.
|
||
*
|
||
* In an attempt to get around this, which may not work all the time,
|
||
* but should work most of the time, we look for implied sources first,
|
||
* checking transformations to all possible suffixes of the target,
|
||
* use what we find to set the target's local variables, expand the
|
||
* children, then look for any overriding transformations they imply.
|
||
* Should we find one, we discard the one we found before.
|
||
*/
|
||
|
||
while (ln != NULL) {
|
||
/*
|
||
* Look for next possible suffix...
|
||
*/
|
||
ln = Lst_FindFrom(sufflist, ln, eoname, SuffSuffIsSuffixP);
|
||
|
||
if (ln != NULL) {
|
||
int prefLen; /* Length of the prefix */
|
||
Src *targ;
|
||
|
||
/*
|
||
* Allocate a Src structure to which things can be transformed
|
||
*/
|
||
targ = (Src *)emalloc(sizeof (Src));
|
||
targ->file = estrdup(gn->name);
|
||
targ->suff = (Suff *)Lst_Datum(ln);
|
||
targ->suff->refCount++;
|
||
targ->node = gn;
|
||
targ->parent = (Src *)NULL;
|
||
targ->children = 0;
|
||
#ifdef DEBUG_SRC
|
||
targ->cp = Lst_Init(FALSE);
|
||
#endif
|
||
|
||
/*
|
||
* Allocate room for the prefix, whose end is found by subtracting
|
||
* the length of the suffix from the end of the name.
|
||
*/
|
||
prefLen = (eoname - targ->suff->nameLen) - sopref;
|
||
targ->pref = emalloc(prefLen + 1);
|
||
memcpy(targ->pref, sopref, prefLen);
|
||
targ->pref[prefLen] = '\0';
|
||
|
||
/*
|
||
* Add nodes from which the target can be made
|
||
*/
|
||
SuffAddLevel(srcs, targ);
|
||
|
||
/*
|
||
* Record the target so we can nuke it
|
||
*/
|
||
(void)Lst_AtEnd(targs, (void *)targ);
|
||
|
||
/*
|
||
* Search from this suffix's successor...
|
||
*/
|
||
ln = Lst_Succ(ln);
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Handle target of unknown suffix...
|
||
*/
|
||
if (Lst_IsEmpty(targs) && suffNull != NULL) {
|
||
if (DEBUG(SUFF)) {
|
||
printf("\tNo known suffix on %s. Using .NULL suffix\n", gn->name);
|
||
}
|
||
|
||
targ = (Src *)emalloc(sizeof (Src));
|
||
targ->file = estrdup(gn->name);
|
||
targ->suff = suffNull;
|
||
targ->suff->refCount++;
|
||
targ->node = gn;
|
||
targ->parent = (Src *)NULL;
|
||
targ->children = 0;
|
||
targ->pref = estrdup(sopref);
|
||
#ifdef DEBUG_SRC
|
||
targ->cp = Lst_Init(FALSE);
|
||
#endif
|
||
|
||
/*
|
||
* Only use the default suffix rules if we don't have commands
|
||
* or dependencies defined for this gnode
|
||
*/
|
||
if (Lst_IsEmpty(gn->commands) && Lst_IsEmpty(gn->children))
|
||
SuffAddLevel(srcs, targ);
|
||
else {
|
||
if (DEBUG(SUFF))
|
||
printf("not ");
|
||
}
|
||
|
||
if (DEBUG(SUFF))
|
||
printf("adding suffix rules\n");
|
||
|
||
(void)Lst_AtEnd(targs, (void *)targ);
|
||
}
|
||
|
||
/*
|
||
* Using the list of possible sources built up from the target suffix(es),
|
||
* try and find an existing file/target that matches.
|
||
*/
|
||
bottom = SuffFindThem(srcs, slst);
|
||
|
||
if (bottom == (Src *)NULL) {
|
||
/*
|
||
* No known transformations -- use the first suffix found for setting
|
||
* the local variables.
|
||
*/
|
||
if (!Lst_IsEmpty(targs)) {
|
||
targ = (Src *)Lst_Datum(Lst_First(targs));
|
||
} else {
|
||
targ = (Src *)NULL;
|
||
}
|
||
} else {
|
||
/*
|
||
* Work up the transformation path to find the suffix of the
|
||
* target to which the transformation was made.
|
||
*/
|
||
for (targ = bottom; targ->parent != NULL; targ = targ->parent)
|
||
continue;
|
||
}
|
||
|
||
/*
|
||
* The .TARGET variable we always set to be the name at this point,
|
||
* since it's only set to the path if the thing is only a source and
|
||
* if it's only a source, it doesn't matter what we put here as far
|
||
* as expanding sources is concerned, since it has none...
|
||
*/
|
||
Var_Set(TARGET, gn->name, gn);
|
||
|
||
pref = (targ != NULL) ? targ->pref : gn->name;
|
||
Var_Set(PREFIX, pref, gn);
|
||
|
||
/*
|
||
* Now we've got the important local variables set, expand any sources
|
||
* that still contain variables or wildcards in their names.
|
||
*/
|
||
Lst_ForEach(gn->children, SuffExpandChildren, (void *)gn);
|
||
|
||
if (targ == NULL) {
|
||
if (DEBUG(SUFF)) {
|
||
printf("\tNo valid suffix on %s\n", gn->name);
|
||
}
|
||
|
||
sfnd_abort:
|
||
/*
|
||
* Deal with finding the thing on the default search path if the
|
||
* node is only a source (not on the lhs of a dependency operator
|
||
* or [XXX] it has neither children or commands).
|
||
*/
|
||
if (OP_NOP(gn->type) ||
|
||
(Lst_IsEmpty(gn->children) && Lst_IsEmpty(gn->commands)))
|
||
{
|
||
gn->path = Dir_FindFile(gn->name,
|
||
(targ == NULL ? dirSearchPath :
|
||
targ->suff->searchPath));
|
||
if (gn->path != NULL) {
|
||
char *ptr;
|
||
Var_Set(TARGET, gn->path, gn);
|
||
|
||
if (targ != NULL) {
|
||
/*
|
||
* Suffix known for the thing -- trim the suffix off
|
||
* the path to form the proper .PREFIX variable.
|
||
*/
|
||
int savep = strlen(gn->path) - targ->suff->nameLen;
|
||
char savec;
|
||
|
||
if (gn->suffix)
|
||
gn->suffix->refCount--;
|
||
gn->suffix = targ->suff;
|
||
gn->suffix->refCount++;
|
||
|
||
savec = gn->path[savep];
|
||
gn->path[savep] = '\0';
|
||
|
||
if ((ptr = strrchr(gn->path, '/')) != NULL)
|
||
ptr++;
|
||
else
|
||
ptr = gn->path;
|
||
|
||
Var_Set(PREFIX, ptr, gn);
|
||
|
||
gn->path[savep] = savec;
|
||
} else {
|
||
/*
|
||
* The .PREFIX gets the full path if the target has
|
||
* no known suffix.
|
||
*/
|
||
if (gn->suffix)
|
||
gn->suffix->refCount--;
|
||
gn->suffix = NULL;
|
||
|
||
if ((ptr = strrchr(gn->path, '/')) != NULL)
|
||
ptr++;
|
||
else
|
||
ptr = gn->path;
|
||
|
||
Var_Set(PREFIX, ptr, gn);
|
||
}
|
||
}
|
||
} else {
|
||
/*
|
||
* Not appropriate to search for the thing -- set the
|
||
* path to be the name so Dir_MTime won't go grovelling for
|
||
* it.
|
||
*/
|
||
if (gn->suffix)
|
||
gn->suffix->refCount--;
|
||
gn->suffix = (targ == NULL) ? NULL : targ->suff;
|
||
if (gn->suffix)
|
||
gn->suffix->refCount++;
|
||
efree(gn->path);
|
||
gn->path = estrdup(gn->name);
|
||
}
|
||
|
||
goto sfnd_return;
|
||
}
|
||
|
||
/*
|
||
* If the suffix indicates that the target is a library, mark that in
|
||
* the node's type field.
|
||
*/
|
||
if (targ->suff->flags & SUFF_LIBRARY) {
|
||
gn->type |= OP_LIB;
|
||
}
|
||
|
||
/*
|
||
* Check for overriding transformation rule implied by sources
|
||
*/
|
||
if (!Lst_IsEmpty(gn->children)) {
|
||
src = SuffFindCmds(targ, slst);
|
||
|
||
if (src != (Src *)NULL) {
|
||
/*
|
||
* Free up all the Src structures in the transformation path
|
||
* up to, but not including, the parent node.
|
||
*/
|
||
while (bottom && bottom->parent != NULL) {
|
||
if (Lst_Member(slst, (void *) bottom) == NULL) {
|
||
Lst_AtEnd(slst, (void *) bottom);
|
||
}
|
||
bottom = bottom->parent;
|
||
}
|
||
bottom = src;
|
||
}
|
||
}
|
||
|
||
if (bottom == NULL) {
|
||
/*
|
||
* No idea from where it can come -- return now.
|
||
*/
|
||
goto sfnd_abort;
|
||
}
|
||
|
||
/*
|
||
* We now have a list of Src structures headed by 'bottom' and linked via
|
||
* their 'parent' pointers. What we do next is create links between
|
||
* source and target nodes (which may or may not have been created)
|
||
* and set the necessary local variables in each target. The
|
||
* commands for each target are set from the commands of the
|
||
* transformation rule used to get from the src suffix to the targ
|
||
* suffix. Note that this causes the commands list of the original
|
||
* node, gn, to be replaced by the commands of the final
|
||
* transformation rule. Also, the unmade field of gn is incremented.
|
||
* Etc.
|
||
*/
|
||
if (bottom->node == NULL) {
|
||
bottom->node = Targ_FindNode(bottom->file, TARG_CREATE);
|
||
}
|
||
|
||
for (src = bottom; src->parent != (Src *)NULL; src = src->parent) {
|
||
targ = src->parent;
|
||
|
||
if (src->node->suffix)
|
||
src->node->suffix->refCount--;
|
||
src->node->suffix = src->suff;
|
||
src->node->suffix->refCount++;
|
||
|
||
if (targ->node == NULL) {
|
||
targ->node = Targ_FindNode(targ->file, TARG_CREATE);
|
||
}
|
||
|
||
SuffApplyTransform(targ->node, src->node,
|
||
targ->suff, src->suff);
|
||
|
||
if (targ->node != gn) {
|
||
/*
|
||
* Finish off the dependency-search process for any nodes
|
||
* between bottom and gn (no point in questing around the
|
||
* filesystem for their implicit source when it's already
|
||
* known). Note that the node can't have any sources that
|
||
* need expanding, since SuffFindThem will stop on an existing
|
||
* node, so all we need to do is set the standard and System V
|
||
* variables.
|
||
*/
|
||
targ->node->type |= OP_DEPS_FOUND;
|
||
|
||
Var_Set(PREFIX, targ->pref, targ->node);
|
||
|
||
Var_Set(TARGET, targ->node->name, targ->node);
|
||
}
|
||
}
|
||
|
||
if (gn->suffix)
|
||
gn->suffix->refCount--;
|
||
gn->suffix = src->suff;
|
||
gn->suffix->refCount++;
|
||
|
||
/*
|
||
* So Dir_MTime doesn't go questing for it...
|
||
*/
|
||
efree(gn->path);
|
||
gn->path = estrdup(gn->name);
|
||
|
||
/*
|
||
* Nuke the transformation path and the Src structures left over in the
|
||
* two lists.
|
||
*/
|
||
sfnd_return:
|
||
if (bottom)
|
||
if (Lst_Member(slst, (void *) bottom) == NULL)
|
||
Lst_AtEnd(slst, (void *) bottom);
|
||
|
||
while (SuffRemoveSrc(srcs) || SuffRemoveSrc(targs))
|
||
continue;
|
||
|
||
Lst_Concat(slst, srcs, LST_CONCLINK);
|
||
Lst_Concat(slst, targs, LST_CONCLINK);
|
||
}
|
||
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* Suff_FindDeps --
|
||
* Find implicit sources for the target described by the graph node
|
||
* gn
|
||
*
|
||
* Results:
|
||
* Nothing.
|
||
*
|
||
* Side Effects:
|
||
* Nodes are added to the graph below the passed-in node. The nodes
|
||
* are marked to have their IMPSRC variable filled in. The
|
||
* PREFIX variable is set for the given node and all its
|
||
* implied children.
|
||
*
|
||
* Notes:
|
||
* The path found by this target is the shortest path in the
|
||
* transformation graph, which may pass through non-existent targets,
|
||
* to an existing target. The search continues on all paths from the
|
||
* root suffix until a file is found. I.e. if there's a path
|
||
* .o -> .c -> .l -> .l,v from the root and the .l,v file exists but
|
||
* the .c and .l files don't, the search will branch out in
|
||
* all directions from .o and again from all the nodes on the
|
||
* next level until the .l,v node is encountered.
|
||
*
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
|
||
void
|
||
Suff_FindDeps(gn)
|
||
GNode *gn;
|
||
{
|
||
|
||
SuffFindDeps(gn, srclist);
|
||
while (SuffRemoveSrc(srclist))
|
||
continue;
|
||
}
|
||
|
||
|
||
static void
|
||
SuffFindDeps (gn, slst)
|
||
GNode *gn; /* node we're dealing with */
|
||
Lst slst;
|
||
{
|
||
if (gn->type & OP_DEPS_FOUND) {
|
||
/*
|
||
* If dependencies already found, no need to do it again...
|
||
*/
|
||
return;
|
||
} else {
|
||
gn->type |= OP_DEPS_FOUND;
|
||
}
|
||
|
||
if (DEBUG(SUFF)) {
|
||
printf ("SuffFindDeps (%s)\n", gn->name);
|
||
}
|
||
|
||
if (gn->type & OP_ARCHV) {
|
||
SuffFindArchiveDeps(gn, slst);
|
||
} else if (gn->type & OP_LIB) {
|
||
/*
|
||
* If the node is a library, it is the arch module's job to find it
|
||
* and set the TARGET variable accordingly. We merely provide the
|
||
* search path, assuming all libraries end in ".a" (if the suffix
|
||
* hasn't been defined, there's nothing we can do for it, so we just
|
||
* set the TARGET variable to the node's name in order to give it a
|
||
* value).
|
||
*/
|
||
LstNode ln;
|
||
Suff *s;
|
||
|
||
ln = Lst_Find (sufflist, (void *)LIBSUFF, SuffSuffHasNameP);
|
||
if (gn->suffix)
|
||
gn->suffix->refCount--;
|
||
if (ln != NULL) {
|
||
gn->suffix = s = (Suff *) Lst_Datum (ln);
|
||
gn->suffix->refCount++;
|
||
Arch_FindLib (gn, s->searchPath);
|
||
} else {
|
||
gn->suffix = NULL;
|
||
Var_Set (TARGET, gn->name, gn);
|
||
}
|
||
/*
|
||
* Because a library (-lfoo) target doesn't follow the standard
|
||
* filesystem conventions, we don't set the regular variables for
|
||
* the thing. .PREFIX is simply made empty...
|
||
*/
|
||
Var_Set(PREFIX, "", gn);
|
||
} else {
|
||
SuffFindNormalDeps(gn, slst);
|
||
}
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* Suff_SetNull --
|
||
* Define which suffix is the null suffix.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side Effects:
|
||
* 'suffNull' is altered.
|
||
*
|
||
* Notes:
|
||
* Need to handle the changing of the null suffix gracefully so the
|
||
* old transformation rules don't just go away.
|
||
*
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
void
|
||
Suff_SetNull(name)
|
||
char *name; /* Name of null suffix */
|
||
{
|
||
Suff *s;
|
||
LstNode ln;
|
||
|
||
ln = Lst_Find(sufflist, (void *)name, SuffSuffHasNameP);
|
||
if (ln != NULL) {
|
||
s = (Suff *)Lst_Datum(ln);
|
||
if (suffNull != (Suff *)NULL) {
|
||
suffNull->flags &= ~SUFF_NULL;
|
||
}
|
||
s->flags |= SUFF_NULL;
|
||
/*
|
||
* XXX: Here's where the transformation mangling would take place
|
||
*/
|
||
suffNull = s;
|
||
} else {
|
||
Parse_Error (PARSE_WARNING, "Desired null suffix %s not defined.",
|
||
name);
|
||
}
|
||
}
|
||
|
||
/*-
|
||
*-----------------------------------------------------------------------
|
||
* Suff_Init --
|
||
* Initialize suffixes module
|
||
*
|
||
* Results:
|
||
* None
|
||
*
|
||
* Side Effects:
|
||
* Many
|
||
*-----------------------------------------------------------------------
|
||
*/
|
||
void
|
||
Suff_Init ()
|
||
{
|
||
sufflist = Lst_Init (FALSE);
|
||
suffClean = Lst_Init(FALSE);
|
||
srclist = Lst_Init (FALSE);
|
||
transforms = Lst_Init (FALSE);
|
||
|
||
sNum = 0;
|
||
/*
|
||
* Create null suffix for single-suffix rules (POSIX). The thing doesn't
|
||
* actually go on the suffix list or everyone will think that's its
|
||
* suffix.
|
||
*/
|
||
emptySuff = suffNull = (Suff *) emalloc (sizeof (Suff));
|
||
|
||
suffNull->name = estrdup ("");
|
||
suffNull->nameLen = 0;
|
||
suffNull->searchPath = Lst_Init (FALSE);
|
||
Dir_Concat(suffNull->searchPath, dirSearchPath);
|
||
suffNull->children = Lst_Init (FALSE);
|
||
suffNull->parents = Lst_Init (FALSE);
|
||
suffNull->ref = Lst_Init (FALSE);
|
||
suffNull->sNum = sNum++;
|
||
suffNull->flags = SUFF_NULL;
|
||
suffNull->refCount = 1;
|
||
|
||
}
|
||
|
||
|
||
/*-
|
||
*----------------------------------------------------------------------
|
||
* Suff_End --
|
||
* Cleanup the this module
|
||
*
|
||
* Results:
|
||
* None
|
||
*
|
||
* Side Effects:
|
||
* The memory is free'd.
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
void
|
||
Suff_End()
|
||
{
|
||
Lst_Destroy(sufflist, SuffFree);
|
||
Lst_Destroy(suffClean, SuffFree);
|
||
if (suffNull)
|
||
SuffFree(suffNull);
|
||
Lst_Destroy(srclist, NOFREE);
|
||
Lst_Destroy(transforms, NOFREE);
|
||
}
|
||
|
||
|
||
/********************* DEBUGGING FUNCTIONS **********************/
|
||
|
||
static int SuffPrintName(s, dummy)
|
||
void * s;
|
||
void * dummy;
|
||
{
|
||
printf ("`%s' ", ((Suff *) s)->name);
|
||
return (dummy ? 0 : 0);
|
||
}
|
||
|
||
static int
|
||
SuffPrintSuff (sp, dummy)
|
||
void * sp;
|
||
void * dummy;
|
||
{
|
||
Suff *s = (Suff *) sp;
|
||
int flags;
|
||
int flag;
|
||
|
||
printf ("# `%s' [%d] ", s->name, s->refCount);
|
||
|
||
flags = s->flags;
|
||
if (flags) {
|
||
fputs (" (", stdout);
|
||
while (flags) {
|
||
flag = 1 << (ffs(flags) - 1);
|
||
flags &= ~flag;
|
||
switch (flag) {
|
||
case SUFF_NULL:
|
||
printf ("NULL");
|
||
break;
|
||
case SUFF_INCLUDE:
|
||
printf ("INCLUDE");
|
||
break;
|
||
case SUFF_LIBRARY:
|
||
printf ("LIBRARY");
|
||
break;
|
||
}
|
||
fputc(flags ? '|' : ')', stdout);
|
||
}
|
||
}
|
||
fputc ('\n', stdout);
|
||
printf ("#\tTo: ");
|
||
Lst_ForEach (s->parents, SuffPrintName, (void *)0);
|
||
fputc ('\n', stdout);
|
||
printf ("#\tFrom: ");
|
||
Lst_ForEach (s->children, SuffPrintName, (void *)0);
|
||
fputc ('\n', stdout);
|
||
printf ("#\tSearch Path: ");
|
||
Dir_PrintPath (s->searchPath);
|
||
fputc ('\n', stdout);
|
||
return (dummy ? 0 : 0);
|
||
}
|
||
|
||
static int
|
||
SuffPrintTrans (tp, dummy)
|
||
void * tp;
|
||
void * dummy;
|
||
{
|
||
GNode *t = (GNode *) tp;
|
||
|
||
printf ("%-16s: ", t->name);
|
||
Targ_PrintType (t->type);
|
||
fputc ('\n', stdout);
|
||
Lst_ForEach (t->commands, Targ_PrintCmd, (void *)0);
|
||
fputc ('\n', stdout);
|
||
return(dummy ? 0 : 0);
|
||
}
|
||
|
||
void
|
||
Suff_PrintAll()
|
||
{
|
||
printf ("#*** Suffixes:\n");
|
||
Lst_ForEach (sufflist, SuffPrintSuff, (void *)0);
|
||
|
||
printf ("#*** Transformations:\n");
|
||
Lst_ForEach (transforms, SuffPrintTrans, (void *)0);
|
||
}
|