c76d7d5047
only in a couple of places and all of them except for one were easily converted to use Lst_First/Lst_Succ. The one place is compatibility mode in job.c where the it was used to advance to the next command on each invocation of JobStart. For this case add a pointer to the node to hold the currently executed command.
2355 lines
62 KiB
C
2355 lines
62 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
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
/*-
|
|
* 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
|
|
* 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
|
|
* 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
|
|
* single-suffix transformation rules */
|
|
|
|
|
|
static void SuffFree(void *);
|
|
static void SuffInsert(Lst *, Suff *);
|
|
static void SuffRemove(Lst *, Suff *);
|
|
static Boolean SuffParseTransform(char *, Suff **, Suff **);
|
|
static int SuffRebuildGraph(void *, void *);
|
|
static int SuffAddSrc(void *, void *);
|
|
static int SuffRemoveSrc(Lst *);
|
|
static void SuffAddLevel(Lst *, Src *);
|
|
static Src *SuffFindThem(Lst *, Lst *);
|
|
static Src *SuffFindCmds(Src *, Lst *);
|
|
static int SuffExpandChildren(void *, void *);
|
|
static Boolean SuffApplyTransform(GNode *, GNode *, Suff *, Suff *);
|
|
static void SuffFindDeps(GNode *, Lst *);
|
|
static void SuffFindArchiveDeps(GNode *, Lst *);
|
|
static void SuffFindNormalDeps(GNode *, Lst *);
|
|
static int SuffPrintName(void *, void *);
|
|
static int SuffPrintSuff(void *, void *);
|
|
static int SuffPrintTrans(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(const char *pref, char *str)
|
|
{
|
|
|
|
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(const Suff *s, char *str)
|
|
{
|
|
const char *p1; /* Pointer into suffix name */
|
|
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.
|
|
*
|
|
* XXX use the function above once constification is complete.
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
static int
|
|
SuffSuffIsSuffixP(const void *is, const void *str)
|
|
{
|
|
const Suff *s = is;
|
|
const char *p1; /* Pointer into suffix name */
|
|
const char *p2 = str; /* Pointer into string being examined */
|
|
|
|
p1 = s->name + s->nameLen;
|
|
|
|
while (p1 >= s->name && *p1 == *p2) {
|
|
p1--;
|
|
p2--;
|
|
}
|
|
|
|
return (p1 != s->name - 1);
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* 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(const void *s, const void *sname)
|
|
{
|
|
|
|
return (strcmp(sname, ((const 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
|
|
*
|
|
* XXX use the function above once constification is complete.
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
static int
|
|
SuffSuffIsPrefix(const void *s, const void *istr)
|
|
{
|
|
const char *pref = ((const Suff *)s)->name;
|
|
const char *str = istr;
|
|
|
|
while (*str != '\0' && *pref == *str) {
|
|
pref++;
|
|
str++;
|
|
}
|
|
|
|
return (*pref != '\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(const void *gn, const void *name)
|
|
{
|
|
|
|
return (strcmp(name, ((const 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(void *sp)
|
|
{
|
|
Suff *s = 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(Lst *l, Suff *s)
|
|
{
|
|
LstNode *ln = Lst_Member(l, 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(Lst *l, Suff *s)
|
|
{
|
|
LstNode *ln; /* current element in l we're examining */
|
|
Suff *s2; /* the suffix descriptor in this element */
|
|
|
|
s2 = NULL;
|
|
for (ln = Lst_First(l); ln != NULL; ln = Lst_Succ(ln)) {
|
|
s2 = Lst_Datum(ln);
|
|
if (s2->sNum >= s->sNum)
|
|
break;
|
|
}
|
|
if (s2 == NULL) {
|
|
DEBUGF(SUFF, ("inserting an empty list?..."));
|
|
}
|
|
|
|
DEBUGF(SUFF, ("inserting %s(%d)...", s->name, s->sNum));
|
|
if (ln == NULL) {
|
|
DEBUGF(SUFF, ("at end of list\n"));
|
|
Lst_AtEnd (l, s);
|
|
s->refCount++;
|
|
Lst_AtEnd(s->ref, l);
|
|
} else if (s2->sNum != s->sNum) {
|
|
DEBUGF(SUFF, ("before %s(%d)\n", s2->name, s2->sNum));
|
|
Lst_Insert(l, ln, s);
|
|
s->refCount++;
|
|
Lst_AtEnd(s->ref, l);
|
|
} else {
|
|
DEBUGF(SUFF, ("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(void)
|
|
{
|
|
|
|
Lst_Concat(suffClean, sufflist, LST_CONCLINK);
|
|
sufflist = Lst_Init();
|
|
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();
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* 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(char *str, Suff **srcPtr, Suff **targPtr)
|
|
{
|
|
LstNode *srcLn; /* element in suffix list of trans source*/
|
|
Suff *src; /* Source of transformation */
|
|
LstNode *targLn; /* element in suffix list of trans target*/
|
|
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, str, SuffSuffIsPrefix);
|
|
} else {
|
|
srcLn = Lst_FindFrom(sufflist, Lst_Succ(srcLn), 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 = Lst_Datum (srcLn);
|
|
str2 = str + src->nameLen;
|
|
if (*str2 == '\0') {
|
|
single = src;
|
|
singleLn = srcLn;
|
|
} else {
|
|
targLn = Lst_Find(sufflist, str2, SuffSuffHasNameP);
|
|
if (targLn != NULL) {
|
|
*srcPtr = src;
|
|
*targPtr = 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(char *str)
|
|
{
|
|
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(char *line)
|
|
{
|
|
GNode *gn; /* GNode of transformation rule */
|
|
Suff *s, /* source suffix */
|
|
*t; /* target suffix */
|
|
LstNode *ln; /* Node for existing transformation */
|
|
|
|
ln = Lst_Find(transforms, 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);
|
|
Lst_AtEnd(transforms, 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 = Lst_Datum(ln);
|
|
Lst_Destroy(gn->commands, NOFREE);
|
|
Lst_Destroy(gn->children, NOFREE);
|
|
gn->commands = Lst_Init();
|
|
gn->children = Lst_Init();
|
|
}
|
|
|
|
gn->type = OP_TRANSFORM;
|
|
|
|
SuffParseTransform(line, &s, &t);
|
|
|
|
/*
|
|
* link the two together in the proper relationship and order
|
|
*/
|
|
DEBUGF(SUFF, ("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(void *gnp, void *dummy __unused)
|
|
{
|
|
GNode *gn = (GNode *)gnp;
|
|
|
|
if ((gn->type & OP_TRANSFORM) && Lst_IsEmpty(gn->commands) &&
|
|
Lst_IsEmpty(gn->children))
|
|
{
|
|
Suff *s, *t;
|
|
|
|
/*
|
|
* SuffParseTransform() may fail for special rules which are not
|
|
* actual transformation rules (e.g., .DEFAULT).
|
|
*/
|
|
if (!SuffParseTransform(gn->name, &s, &t))
|
|
return (0);
|
|
|
|
DEBUGF(SUFF, ("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) {
|
|
DEBUGF(SUFF, ("transformation %s complete\n", gn->name));
|
|
}
|
|
|
|
return (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(void *transformp, void *sp)
|
|
{
|
|
GNode *transform = transformp;
|
|
Suff *s = 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, cp, SuffSuffHasNameP);
|
|
if (ln != NULL)
|
|
s2 = 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 != NULL) {
|
|
/*
|
|
* Null-terminate the source suffix in order to find it.
|
|
*/
|
|
cp[1] = '\0';
|
|
ln = Lst_Find(sufflist, 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 = 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(char *str)
|
|
{
|
|
Suff *s; /* new suffix descriptor */
|
|
LstNode *ln;
|
|
|
|
ln = Lst_Find(sufflist, str, SuffSuffHasNameP);
|
|
if (ln == NULL) {
|
|
s = emalloc(sizeof(Suff));
|
|
|
|
s->name = estrdup(str);
|
|
s->nameLen = strlen (s->name);
|
|
s->searchPath = Lst_Init();
|
|
s->children = Lst_Init();
|
|
s->parents = Lst_Init();
|
|
s->ref = Lst_Init();
|
|
s->sNum = sNum++;
|
|
s->flags = 0;
|
|
s->refCount = 0;
|
|
|
|
Lst_AtEnd(sufflist, s);
|
|
|
|
/*
|
|
* Look for any existing transformations from or to this suffix.
|
|
* XXX: Only do this after a Suff_ClearSuffixes?
|
|
*/
|
|
Lst_ForEach(transforms, SuffRebuildGraph, 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(char *sname)
|
|
{
|
|
LstNode *ln;
|
|
Suff *s;
|
|
|
|
ln = Lst_Find(sufflist, sname, SuffSuffHasNameP);
|
|
if (ln == NULL) {
|
|
return (NULL);
|
|
} else {
|
|
s = 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(void)
|
|
{
|
|
Suff *s;
|
|
LstNode *ln;
|
|
char *ptr;
|
|
Lst *inIncludes; /* Cumulative .INCLUDES path */
|
|
Lst *inLibs; /* Cumulative .LIBS path */
|
|
|
|
inIncludes = Lst_Init();
|
|
inLibs = Lst_Init();
|
|
|
|
for (ln = Lst_First(sufflist); ln != NULL; ln = Lst_Succ(ln)) {
|
|
s = 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);
|
|
}
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* 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(char *sname)
|
|
{
|
|
LstNode *ln;
|
|
Suff *s;
|
|
|
|
ln = Lst_Find(sufflist, sname, SuffSuffHasNameP);
|
|
if (ln != NULL) {
|
|
s = 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(char *sname)
|
|
{
|
|
LstNode *ln;
|
|
Suff *s;
|
|
|
|
ln = Lst_Find(sufflist, sname, SuffSuffHasNameP);
|
|
if (ln != NULL) {
|
|
s = 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(void *sp, void *lsp)
|
|
{
|
|
Suff *s = sp;
|
|
LstSrc *ls = 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 = 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;
|
|
Lst_AtEnd(ls->l, s2);
|
|
#ifdef DEBUG_SRC
|
|
s2->cp = Lst_Init();
|
|
Lst_AtEnd(targ->cp, s2);
|
|
printf("1 add %x %x to %x:", targ, s2, ls->l);
|
|
Lst_ForEach(ls->l, PrintAddr, (void *)NULL);
|
|
printf("\n");
|
|
#endif
|
|
}
|
|
s2 = 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;
|
|
Lst_AtEnd(ls->l, s2);
|
|
#ifdef DEBUG_SRC
|
|
s2->cp = Lst_Init();
|
|
Lst_AtEnd(targ->cp, s2);
|
|
printf("2 add %x %x to %x:", targ, s2, ls->l);
|
|
Lst_ForEach(ls->l, PrintAddr, (void *)NULL);
|
|
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(Lst *l, Src *targ)
|
|
{
|
|
LstSrc ls;
|
|
|
|
ls.s = targ;
|
|
ls.l = l;
|
|
|
|
Lst_ForEach(targ->suff->children, SuffAddSrc, &ls);
|
|
}
|
|
|
|
/*-
|
|
*----------------------------------------------------------------------
|
|
* SuffRemoveSrc --
|
|
* Free all src structures in list that don't have a reference count
|
|
* XXX this actually frees only the first of these.
|
|
*
|
|
* Results:
|
|
* True if a src was removed
|
|
*
|
|
* Side Effects:
|
|
* The memory is free'd.
|
|
*----------------------------------------------------------------------
|
|
*/
|
|
static int
|
|
SuffRemoveSrc(Lst *l)
|
|
{
|
|
LstNode *ln, *ln1;
|
|
Src *s;
|
|
int t = 0;
|
|
|
|
#ifdef DEBUG_SRC
|
|
printf("cleaning %lx: ", (unsigned long) l);
|
|
Lst_ForEach(l, PrintAddr, (void *)NULL);
|
|
printf("\n");
|
|
#endif
|
|
|
|
for (ln = Lst_First(l); ln != NULL; ln = ln1) {
|
|
ln1 = Lst_Succ(ln);
|
|
|
|
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, 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;
|
|
return (TRUE);
|
|
}
|
|
#ifdef DEBUG_SRC
|
|
else {
|
|
printf("keep: [l=%x] p=%x %d: ", l, s, s->children);
|
|
Lst_ForEach(s->cp, PrintAddr, (void *)NULL);
|
|
printf("\n");
|
|
}
|
|
#endif
|
|
}
|
|
|
|
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(Lst *srcs, Lst *slst)
|
|
{
|
|
Src *s; /* current Src */
|
|
Src *rs; /* returned Src */
|
|
char *ptr;
|
|
|
|
rs = NULL;
|
|
|
|
while (!Lst_IsEmpty (srcs)) {
|
|
s = Lst_DeQueue(srcs);
|
|
|
|
DEBUGF(SUFF, ("\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;
|
|
}
|
|
|
|
DEBUGF(SUFF, ("not there\n"));
|
|
|
|
SuffAddLevel(srcs, s);
|
|
Lst_AtEnd(slst, s);
|
|
}
|
|
|
|
if (rs) {
|
|
DEBUGF(SUFF, ("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 (Src *targ, Lst *slst)
|
|
{
|
|
LstNode *ln; /* General-purpose list node */
|
|
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;
|
|
prefLen = strlen(targ->pref);
|
|
|
|
for (ln = Lst_First(t->children); ln != NULL; ln = Lst_Succ(ln)) {
|
|
s = Lst_Datum(ln);
|
|
|
|
cp = strrchr(s->name, '/');
|
|
if (cp == 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, &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 = Lst_Datum(ln);
|
|
|
|
if (Lst_Member(suff->parents, 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 = 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();
|
|
printf("3 add %x %x\n", targ, ret);
|
|
Lst_AtEnd(targ->cp, ret);
|
|
#endif
|
|
Lst_AtEnd(slst, ret);
|
|
DEBUGF(SUFF, ("\tusing existing source %s\n", s->name));
|
|
return (ret);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return (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(void *cgnp, void *pgnp)
|
|
{
|
|
GNode *cgn = cgnp;
|
|
GNode *pgn = 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, 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, '$') != NULL) {
|
|
DEBUGF(SUFF, ("Expanding \"%s\"...", cgn->name));
|
|
cp = Var_Subst(NULL, cgn->name, pgn, TRUE);
|
|
|
|
if (cp != NULL) {
|
|
Lst *members = Lst_Init();
|
|
|
|
if (cgn->type & OP_ARCHV) {
|
|
/*
|
|
* Node was an archive(member) target, so we want to call
|
|
* on the Arch module to find the nodes for us, expanding
|
|
* variables in the parent's context.
|
|
*/
|
|
char *sacrifice = cp;
|
|
|
|
Arch_ParseArchive(&sacrifice, members, pgn);
|
|
} else {
|
|
/*
|
|
* Break the result into a vector of strings whose nodes
|
|
* we can find, then add those nodes to the members list.
|
|
* Unfortunately, we can't use brk_string b/c it
|
|
* doesn't understand about variable specifications with
|
|
* spaces in them...
|
|
*/
|
|
char *start;
|
|
char *initcp = cp; /* For freeing... */
|
|
|
|
for (start = cp; *start == ' ' || *start == '\t'; start++)
|
|
continue;
|
|
for (cp = start; *cp != '\0'; cp++) {
|
|
if (*cp == ' ' || *cp == '\t') {
|
|
/*
|
|
* White-space -- terminate element, find the node,
|
|
* add it, skip any further spaces.
|
|
*/
|
|
*cp++ = '\0';
|
|
gn = Targ_FindNode(start, TARG_CREATE);
|
|
Lst_AtEnd(members, gn);
|
|
while (*cp == ' ' || *cp == '\t') {
|
|
cp++;
|
|
}
|
|
/*
|
|
* Adjust cp for increment at start of loop, but
|
|
* set start to first non-space.
|
|
*/
|
|
start = cp--;
|
|
} else if (*cp == '$') {
|
|
/*
|
|
* Start of a variable spec -- contact variable module
|
|
* to find the end so we can skip over it.
|
|
*/
|
|
char *junk;
|
|
size_t 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);
|
|
Lst_AtEnd(members, 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 = Lst_DeQueue(members);
|
|
|
|
DEBUGF(SUFF, ("%s...", gn->name));
|
|
if (Lst_Member(pgn->children, gn) == NULL) {
|
|
Lst_Append(pgn->children, prevLN, gn);
|
|
prevLN = Lst_Succ(prevLN);
|
|
Lst_AtEnd(gn->parents, pgn);
|
|
pgn->unmade++;
|
|
}
|
|
}
|
|
Lst_Destroy(members, NOFREE);
|
|
/*
|
|
* Free the result
|
|
*/
|
|
free(cp);
|
|
}
|
|
/*
|
|
* Now the source is expanded, remove it from the list of children to
|
|
* keep it from being processed.
|
|
*/
|
|
ln = Lst_Member(pgn->children, cgn);
|
|
pgn->unmade--;
|
|
Lst_Remove(pgn->children, ln);
|
|
DEBUGF(SUFF, ("\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, cp, SuffSuffIsSuffixP);
|
|
|
|
DEBUGF(SUFF, ("Wildcard expanding \"%s\"...", cgn->name));
|
|
|
|
if (ln != NULL) {
|
|
Suff *s = Lst_Datum(ln);
|
|
|
|
DEBUGF(SUFF, ("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();
|
|
Dir_Expand(cgn->name, path, exp);
|
|
|
|
while (!Lst_IsEmpty(exp)) {
|
|
/*
|
|
* Fetch next expansion off the list and find its GNode
|
|
*/
|
|
cp = Lst_DeQueue(exp);
|
|
|
|
DEBUGF(SUFF, ("%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, gn) == NULL) {
|
|
Lst_Append(pgn->children, prevLN, gn);
|
|
prevLN = Lst_Succ(prevLN);
|
|
Lst_AtEnd(gn->parents, 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, cgn);
|
|
pgn->unmade--;
|
|
Lst_Remove(pgn->children, ln);
|
|
DEBUGF(SUFF, ("\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(GNode *tGn, GNode *sGn, Suff *t, Suff *s)
|
|
{
|
|
LstNode *ln; /* General node */
|
|
char *tname; /* Name of transformation rule */
|
|
GNode *gn; /* Node for same */
|
|
|
|
if (Lst_Member(tGn->children, sGn) == NULL) {
|
|
/*
|
|
* Not already linked, so form the proper links between the
|
|
* target and source.
|
|
*/
|
|
Lst_AtEnd(tGn->children, sGn);
|
|
Lst_AtEnd(sGn->parents, 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 = Lst_Datum(ln);
|
|
|
|
if (Lst_Member(tGn->children, gn) == NULL) {
|
|
/*
|
|
* Not already linked, so form the proper links between the
|
|
* target and source.
|
|
*/
|
|
Lst_AtEnd(tGn->children, gn);
|
|
Lst_AtEnd(gn->parents, tGn);
|
|
tGn->unmade += 1;
|
|
}
|
|
}
|
|
}
|
|
/*
|
|
* Locate the transformation rule itself
|
|
*/
|
|
tname = str_concat(s->name, t->name, 0);
|
|
ln = Lst_Find(transforms, 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 = Lst_Datum(ln);
|
|
|
|
DEBUGF(SUFF, ("\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
|
|
*/
|
|
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, tGn);
|
|
}
|
|
|
|
/*
|
|
* Keep track of another parent to which this beast is transformed so
|
|
* the .IMPSRC variable can be set correctly for the parent.
|
|
*/
|
|
Lst_AtEnd(sGn->iParents, tGn);
|
|
|
|
return (TRUE);
|
|
}
|
|
|
|
|
|
/*-
|
|
*-----------------------------------------------------------------------
|
|
* SuffFindArchiveDeps --
|
|
* Locate dependencies for an OP_ARCHV node.
|
|
*
|
|
* Results:
|
|
* None
|
|
*
|
|
* Side Effects:
|
|
* Same as Suff_FindDeps
|
|
*
|
|
*-----------------------------------------------------------------------
|
|
*/
|
|
static void
|
|
SuffFindArchiveDeps(GNode *gn, 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, mem) == NULL) {
|
|
Lst_AtEnd(gn->children, mem);
|
|
Lst_AtEnd(mem->parents, 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);
|
|
free(p1);
|
|
|
|
}
|
|
|
|
ms = mem->suffix;
|
|
if (ms == NULL) {
|
|
/*
|
|
* Didn't know what it was -- use .NULL suffix if not in make mode
|
|
*/
|
|
DEBUGF(SUFF, ("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, Lst_Datum(ln), ms)) {
|
|
DEBUGF(SUFF, ("\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(GNode *gn, 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();
|
|
targs = Lst_Init();
|
|
|
|
/*
|
|
* 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 *target;
|
|
|
|
/*
|
|
* Allocate a Src structure to which things can be transformed
|
|
*/
|
|
target = emalloc(sizeof(Src));
|
|
target->file = estrdup(gn->name);
|
|
target->suff = Lst_Datum(ln);
|
|
target->suff->refCount++;
|
|
target->node = gn;
|
|
target->parent = NULL;
|
|
target->children = 0;
|
|
#ifdef DEBUG_SRC
|
|
target->cp = Lst_Init();
|
|
#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 - target->suff->nameLen) - sopref;
|
|
target->pref = emalloc(prefLen + 1);
|
|
memcpy(target->pref, sopref, prefLen);
|
|
target->pref[prefLen] = '\0';
|
|
|
|
/*
|
|
* Add nodes from which the target can be made
|
|
*/
|
|
SuffAddLevel(srcs, target);
|
|
|
|
/*
|
|
* Record the target so we can nuke it
|
|
*/
|
|
Lst_AtEnd(targs, target);
|
|
|
|
/*
|
|
* Search from this suffix's successor...
|
|
*/
|
|
ln = Lst_Succ(ln);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Handle target of unknown suffix...
|
|
*/
|
|
if (Lst_IsEmpty(targs) && suffNull != NULL) {
|
|
DEBUGF(SUFF, ("\tNo known suffix on %s. Using .NULL suffix\n", gn->name));
|
|
|
|
targ = emalloc(sizeof(Src));
|
|
targ->file = estrdup(gn->name);
|
|
targ->suff = suffNull;
|
|
targ->suff->refCount++;
|
|
targ->node = gn;
|
|
targ->parent = NULL;
|
|
targ->children = 0;
|
|
targ->pref = estrdup(sopref);
|
|
#ifdef DEBUG_SRC
|
|
targ->cp = Lst_Init();
|
|
#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 {
|
|
DEBUGF(SUFF, ("not "));
|
|
}
|
|
|
|
DEBUGF(SUFF, ("adding suffix rules\n"));
|
|
|
|
Lst_AtEnd(targs, 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 == NULL) {
|
|
/*
|
|
* No known transformations -- use the first suffix found for setting
|
|
* the local variables.
|
|
*/
|
|
if (!Lst_IsEmpty(targs)) {
|
|
targ = Lst_Datum(Lst_First(targs));
|
|
} else {
|
|
targ = 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) {
|
|
DEBUGF(SUFF, ("\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++;
|
|
free(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 != 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, bottom) == NULL) {
|
|
Lst_AtEnd(slst, 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 != 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...
|
|
*/
|
|
free(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, bottom) == NULL)
|
|
Lst_AtEnd(slst, 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(GNode *gn)
|
|
{
|
|
|
|
SuffFindDeps(gn, srclist);
|
|
while (SuffRemoveSrc(srclist))
|
|
continue;
|
|
}
|
|
|
|
|
|
static void
|
|
SuffFindDeps(GNode *gn, 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;
|
|
}
|
|
|
|
DEBUGF(SUFF, ("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, LIBSUFF, SuffSuffHasNameP);
|
|
if (gn->suffix)
|
|
gn->suffix->refCount--;
|
|
if (ln != NULL) {
|
|
gn->suffix = s = 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(char *name)
|
|
{
|
|
Suff *s;
|
|
LstNode *ln;
|
|
|
|
ln = Lst_Find(sufflist, name, SuffSuffHasNameP);
|
|
if (ln != NULL) {
|
|
s = Lst_Datum(ln);
|
|
if (suffNull != 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(void)
|
|
{
|
|
|
|
sufflist = Lst_Init();
|
|
suffClean = Lst_Init();
|
|
srclist = Lst_Init();
|
|
transforms = Lst_Init();
|
|
|
|
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 = emalloc(sizeof(Suff));
|
|
|
|
suffNull->name = estrdup("");
|
|
suffNull->nameLen = 0;
|
|
suffNull->searchPath = Lst_Init();
|
|
Dir_Concat(suffNull->searchPath, dirSearchPath);
|
|
suffNull->children = Lst_Init();
|
|
suffNull->parents = Lst_Init();
|
|
suffNull->ref = Lst_Init();
|
|
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(void)
|
|
{
|
|
|
|
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(void *s, void *dummy __unused)
|
|
{
|
|
|
|
printf("`%s' ", ((Suff *)s)->name);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
SuffPrintSuff(void *sp, void *dummy __unused)
|
|
{
|
|
Suff *s = 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;
|
|
default:
|
|
break;
|
|
}
|
|
fputc(flags ? '|' : ')', stdout);
|
|
}
|
|
}
|
|
fputc('\n', stdout);
|
|
printf("#\tTo: ");
|
|
Lst_ForEach(s->parents, SuffPrintName, (void *)NULL);
|
|
fputc('\n', stdout);
|
|
printf("#\tFrom: ");
|
|
Lst_ForEach(s->children, SuffPrintName, (void *)NULL);
|
|
fputc('\n', stdout);
|
|
printf("#\tSearch Path: ");
|
|
Dir_PrintPath(s->searchPath);
|
|
fputc('\n', stdout);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
SuffPrintTrans(void *tp, void *dummy __unused)
|
|
{
|
|
GNode *t = tp;
|
|
|
|
printf("%-16s: ", t->name);
|
|
Targ_PrintType(t->type);
|
|
fputc('\n', stdout);
|
|
Lst_ForEach(t->commands, Targ_PrintCmd, (void *)NULL);
|
|
fputc('\n', stdout);
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
Suff_PrintAll(void)
|
|
{
|
|
|
|
printf("#*** Suffixes:\n");
|
|
Lst_ForEach(sufflist, SuffPrintSuff, (void *)NULL);
|
|
|
|
printf("#*** Transformations:\n");
|
|
Lst_ForEach(transforms, SuffPrintTrans, (void *)NULL);
|
|
}
|