/* $OpenBSD: targ.c,v 1.28 2000/09/14 13:52:42 espie Exp $ */ /* $NetBSD: targ.c,v 1.11 1997/02/20 16:51:50 christos Exp $ */ /* * 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. */ /*- * targ.c -- * Target nodes are kept into a hash table. * * Interface: * Targ_Init Initialization procedure. * * Targ_End Cleanup the module * * Targ_NewGN Create a new GNode for the passed target * (string). The node is *not* placed in the * hash table, though all its fields are * initialized. * * Targ_FindNode Find the node for a given target, creating * and storing it if it doesn't exist and the * flags are right (TARG_CREATE) * * Targ_FindList Given a list of names, find nodes for all * of them, creating nodes if needed. * * Targ_Ignore Return TRUE if errors should be ignored when * creating the given target. * * Targ_Silent Return TRUE if we should be silent when * creating the given target. * * Targ_Precious Return TRUE if the target is precious and * should not be removed if we are interrupted. * * Debugging: * Targ_PrintGraph Print out the entire graphm all variables * and statistics for the directory cache. Should * print something for suffixes, too, but... */ #include #include #include #include "make.h" #include "ohash.h" #include "dir.h" #ifndef lint #if 0 static char sccsid[] = "@(#)targ.c 8.2 (Berkeley) 3/19/94"; #else UNUSED static char *rcsid = "$OpenBSD: targ.c,v 1.28 2000/09/14 13:52:42 espie Exp $"; #endif #endif /* not lint */ #ifdef CLEANUP static LIST allGNs; /* List of all the GNodes */ #endif static struct hash targets; /* a hash table of same */ static struct hash_info gnode_info = { offsetof(GNode, name), NULL, hash_alloc, hash_free, element_alloc }; static void TargPrintOnlySrc __P((GNode *)); static void TargPrintName __P((void *)); static void TargPrintNode __P((GNode *, int)); #ifdef CLEANUP static void TargFreeGN __P((void *)); #endif /*- *----------------------------------------------------------------------- * Targ_Init -- * Initialize this module * * Side Effects: * The targets hash table is initialized *----------------------------------------------------------------------- */ void Targ_Init() { #ifdef CLEANUP Lst_Init(&allGNs); #endif /* A small make file already creates 200 targets. */ hash_init(&targets, 10, &gnode_info); } /*- *----------------------------------------------------------------------- * Targ_End -- * Finalize this module * * Side Effects: * All lists and gnodes are cleared *----------------------------------------------------------------------- */ void Targ_End () { #ifdef CLEANUP Lst_Destroy(&allGNs, TargFreeGN); hash_delete(&targets); #endif } /*- *----------------------------------------------------------------------- * Targ_NewGN -- * Create and initialize a new graph node * * Results: * An initialized graph node with the name field filled with a copy * of the passed name * * Side Effects: * The gnode is added to the set of all gnodes. *----------------------------------------------------------------------- */ GNode * Targ_NewGN(name, end) const char *name; /* the name to stick in the new node */ const char *end; { GNode *gn; gn = hash_create_entry(&gnode_info, name, &end); gn->path = NULL; if (name[0] == '-' && name[1] == 'l') { gn->type = OP_LIB; } else { gn->type = 0; } gn->unmade = 0; gn->make = FALSE; gn->made = UNMADE; gn->childMade = FALSE; gn->order = 0; gn->mtime = gn->cmtime = OUT_OF_DATE; Lst_Init(&gn->iParents); Lst_Init(&gn->cohorts); Lst_Init(&gn->parents); Lst_Init(&gn->children); Lst_Init(&gn->successors); Lst_Init(&gn->preds); SymTable_Init(&gn->context); gn->lineno = 0; gn->fname = NULL; Lst_Init(&gn->commands); gn->suffix = NULL; #ifdef CLEANUP Lst_AtEnd(&allGNs, gn); #endif return gn; } #ifdef CLEANUP /*- *----------------------------------------------------------------------- * TargFreeGN -- * Destroy a GNode * * Results: * None. * * Side Effects: * None. *----------------------------------------------------------------------- */ static void TargFreeGN(gnp) void *gnp; { GNode *gn = (GNode *) gnp; efree(gn->path); Lst_Destroy(&gn->iParents, NOFREE); Lst_Destroy(&gn->cohorts, NOFREE); Lst_Destroy(&gn->parents, NOFREE); Lst_Destroy(&gn->children, NOFREE); Lst_Destroy(&gn->successors, NOFREE); Lst_Destroy(&gn->preds, NOFREE); SymTable_Destroy(&gn->context); Lst_Destroy(&gn->commands, NOFREE); free(gn); } #endif /*- *----------------------------------------------------------------------- * Targ_FindNode -- * Find a node in the list using the given name for matching * * Results: * The node in the list if it was. If it wasn't, return NULL of * flags was TARG_NOCREATE or the newly created and initialized node * if it was TARG_CREATE * * Side Effects: * Sometimes a node is created and added to the list *----------------------------------------------------------------------- */ GNode * Targ_FindNode(name, flags) const char *name; /* the name to find */ int flags; /* flags governing events when target not * found */ { const char *end = NULL; GNode *gn; /* node in that element */ unsigned int slot; slot = hash_qlookupi(&targets, name, &end); gn = hash_find(&targets, slot); if (gn == NULL && (flags & TARG_CREATE)) { gn = Targ_NewGN(name, end); hash_insert(&targets, slot, gn); } return gn; } /*- *----------------------------------------------------------------------- * Targ_FindList -- * Make a complete list of GNodes from the given list of names * * Side Effects: * Nodes will be created for all names which do not yet have graph * nodes. * * A complete list of graph nodes corresponding to all instances of * all names is added to nodes. * ----------------------------------------------------------------------- */ void Targ_FindList(nodes, names) Lst nodes; /* result list */ Lst names; /* list of names to find */ { LstNode ln; /* name list element */ GNode *gn; /* node in tLn */ char *name; for (ln = Lst_First(names); ln != NULL; ln = Lst_Adv(ln)) { name = (char *)Lst_Datum(ln); gn = Targ_FindNode(name, TARG_CREATE); /* * Note: Lst_AtEnd must come before the Lst_Concat so the nodes * are added to the list in the order in which they were * encountered in the makefile. */ Lst_AtEnd(nodes, gn); if (gn->type & OP_DOUBLEDEP) Lst_Concat(nodes, &gn->cohorts); } } /*- *----------------------------------------------------------------------- * Targ_Ignore -- * Return true if should ignore errors when creating gn *----------------------------------------------------------------------- */ Boolean Targ_Ignore(gn) GNode *gn; /* node to check for */ { if (ignoreErrors || gn->type & OP_IGNORE) return TRUE; else return FALSE; } /*- *----------------------------------------------------------------------- * Targ_Silent -- * Return true if be silent when creating gn *----------------------------------------------------------------------- */ Boolean Targ_Silent(gn) GNode *gn; /* node to check for */ { if (beSilent || gn->type & OP_SILENT) return TRUE; else return FALSE; } /*- *----------------------------------------------------------------------- * Targ_Precious -- * See if the given target is precious *----------------------------------------------------------------------- */ Boolean Targ_Precious (gn) GNode *gn; /* the node to check */ { if (allPrecious || (gn->type & (OP_PRECIOUS|OP_DOUBLEDEP))) return TRUE; else return FALSE; } /******************* DEBUG INFO PRINTING ****************/ static GNode *mainTarg; /* the main target, as set by Targ_SetMain */ /*- *----------------------------------------------------------------------- * Targ_SetMain -- * Set our idea of the main target we'll be creating. Used for * debugging output. * * Side Effects: * "mainTarg" is set to the main target's node. *----------------------------------------------------------------------- */ void Targ_SetMain(gn) GNode *gn; /* The main target we'll create */ { mainTarg = gn; } static void TargPrintName(gnp) void *gnp; { GNode *gn = (GNode *)gnp; printf("%s ", gn->name); } void Targ_PrintCmd(cmd) void *cmd; { printf("\t%s\n", (char *)cmd); } /*- *----------------------------------------------------------------------- * Targ_FmtTime -- * Format a modification time in some reasonable way and return it. * * Results: * The time reformatted. * * Side Effects: * The time is placed in a static area, so it is overwritten * with each call. * *----------------------------------------------------------------------- */ char * Targ_FmtTime(time) time_t time; { struct tm *parts; static char buf[128]; parts = localtime(&time); strftime(buf, sizeof buf, "%k:%M:%S %b %d, %Y", parts); buf[sizeof(buf) - 1] = '\0'; return(buf); } /*- *----------------------------------------------------------------------- * Targ_PrintType -- * Print out a type field giving only those attributes the user can * set. *----------------------------------------------------------------------- */ void Targ_PrintType(type) int type; { int tbit; #ifdef __STDC__ #define PRINTBIT(attr) case CONCAT(OP_,attr): printf("." #attr " "); break #define PRINTDBIT(attr) case CONCAT(OP_,attr): if (DEBUG(TARG)) printf("." #attr " "); break #else #define PRINTBIT(attr) case CONCAT(OP_,attr): printf(".attr "); break #define PRINTDBIT(attr) case CONCAT(OP_,attr): if (DEBUG(TARG)) printf(".attr "); break #endif /* __STDC__ */ type &= ~OP_OPMASK; while (type) { tbit = 1 << (ffs(type) - 1); type &= ~tbit; switch(tbit) { PRINTBIT(OPTIONAL); PRINTBIT(USE); PRINTBIT(EXEC); PRINTBIT(IGNORE); PRINTBIT(PRECIOUS); PRINTBIT(SILENT); PRINTBIT(MAKE); PRINTBIT(JOIN); PRINTBIT(INVISIBLE); PRINTBIT(NOTMAIN); PRINTDBIT(LIB); /*XXX: MEMBER is defined, so CONCAT(OP_,MEMBER) gives OP_"%" */ case OP_MEMBER: if (DEBUG(TARG)) printf(".MEMBER "); break; PRINTDBIT(ARCHV); } } } /*- *----------------------------------------------------------------------- * TargPrintNode -- * print the contents of a node *----------------------------------------------------------------------- */ static void TargPrintNode(gn, pass) GNode *gn; int pass; { if (!OP_NOP(gn->type)) { printf("#\n"); if (gn == mainTarg) printf("# *** MAIN TARGET ***\n"); if (pass == 2) { if (gn->unmade) printf("# %d unmade children\n", gn->unmade); else printf("# No unmade children\n"); if (! (gn->type & (OP_JOIN|OP_USE|OP_EXEC))) { if (gn->mtime != OUT_OF_DATE) printf("# last modified %s: %s\n", Targ_FmtTime(gn->mtime), (gn->made == UNMADE ? "unmade" : (gn->made == MADE ? "made" : (gn->made == UPTODATE ? "up-to-date" : "error when made")))); else if (gn->made != UNMADE) printf("# non-existent (maybe): %s\n", (gn->made == MADE ? "made" : (gn->made == UPTODATE ? "up-to-date" : (gn->made == ERROR ? "error when made" : "aborted")))); else printf("# unmade\n"); } if (!Lst_IsEmpty(&gn->iParents)) { printf("# implicit parents: "); Lst_Every(&gn->iParents, TargPrintName); fputc('\n', stdout); } } if (!Lst_IsEmpty(&gn->parents)) { printf("# parents: "); Lst_Every(&gn->parents, TargPrintName); fputc ('\n', stdout); } printf("%-16s", gn->name); switch (gn->type & OP_OPMASK) { case OP_DEPENDS: printf(": "); break; case OP_FORCE: printf("! "); break; case OP_DOUBLEDEP: printf(":: "); break; } Targ_PrintType(gn->type); Lst_Every(&gn->children, TargPrintName); fputc('\n', stdout); Lst_Every(&gn->commands, Targ_PrintCmd); printf("\n\n"); if (gn->type & OP_DOUBLEDEP) { LstNode ln; for (ln = Lst_First(&gn->cohorts); ln != NULL; ln = Lst_Adv(ln)) TargPrintNode((GNode *)Lst_Datum(ln), pass); } } } /*- *----------------------------------------------------------------------- * TargPrintOnlySrc -- * Print only those targets that are just a source. *----------------------------------------------------------------------- */ static void TargPrintOnlySrc(gn) GNode *gn; { if (OP_NOP(gn->type)) printf("#\t%s [%s]\n", gn->name, gn->path ? gn->path : gn->name); } /*- *----------------------------------------------------------------------- * Targ_PrintGraph -- * print the entire graph. *----------------------------------------------------------------------- */ void Targ_PrintGraph(pass) int pass; /* Which pass this is. 1 => no processing * 2 => processing done */ { GNode *gn; unsigned int i; printf("#*** Input graph:\n"); for (gn = hash_first(&targets, &i); gn != NULL; gn = hash_next(&targets, &i)) TargPrintNode(gn, pass); printf("\n\n"); printf("#\n# Files that are only sources:\n"); for (gn = hash_first(&targets, &i); gn != NULL; gn = hash_next(&targets, &i)) TargPrintOnlySrc(gn); printf("#*** Global Variables:\n"); Var_Dump(VAR_GLOBAL); printf("#*** Command-line Variables:\n"); Var_Dump(VAR_CMD); printf("\n"); Dir_PrintDirectories(); printf("\n"); Suff_PrintAll(); }