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-rw-r--r--bootstrap/bmake/compat.c636
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diff --git a/bootstrap/bmake/compat.c b/bootstrap/bmake/compat.c
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+/* $NetBSD: compat.c,v 1.1.1.1 2004/03/11 13:04:01 grant Exp $ */
+
+/*
+ * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
+ * Copyright (c) 1988, 1989 by Adam de Boor
+ * 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.
+ */
+
+#ifdef MAKE_BOOTSTRAP
+static char rcsid[] = "$NetBSD: compat.c,v 1.1.1.1 2004/03/11 13:04:01 grant Exp $";
+#else
+#include <sys/cdefs.h>
+#ifndef lint
+#if 0
+static char sccsid[] = "@(#)compat.c 8.2 (Berkeley) 3/19/94";
+#else
+__RCSID("$NetBSD: compat.c,v 1.1.1.1 2004/03/11 13:04:01 grant Exp $");
+#endif
+#endif /* not lint */
+#endif
+
+#if !defined(MAKE_BOOTSTRAP) && !defined(lint)
+__IDSTRING(rcs_id,"$Id: compat.c,v 1.1.1.1 2004/03/11 13:04:01 grant Exp $");
+#endif
+
+/*-
+ * compat.c --
+ * The routines in this file implement the full-compatibility
+ * mode of PMake. Most of the special functionality of PMake
+ * is available in this mode. Things not supported:
+ * - different shells.
+ * - friendly variable substitution.
+ *
+ * Interface:
+ * Compat_Run Initialize things for this module and recreate
+ * thems as need creatin'
+ */
+
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/signal.h>
+#include <sys/uio.h>
+#include "wait.h"
+#include <sys/errno.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <ctype.h>
+#include <errno.h>
+#include <signal.h>
+#include "make.h"
+#include "hash.h"
+#include "dir.h"
+#include "job.h"
+
+/*
+ * The following array is used to make a fast determination of which
+ * characters are interpreted specially by the shell. If a command
+ * contains any of these characters, it is executed by the shell, not
+ * directly by us.
+ */
+
+static char meta[256];
+
+static GNode *curTarg = NILGNODE;
+static GNode *ENDNode;
+static void CompatInterrupt __P((int));
+static int CompatRunCommand __P((ClientData, ClientData));
+static int CompatMake __P((ClientData, ClientData));
+
+/*-
+ *-----------------------------------------------------------------------
+ * CompatInterrupt --
+ * Interrupt the creation of the current target and remove it if
+ * it ain't precious.
+ *
+ * Results:
+ * None.
+ *
+ * Side Effects:
+ * The target is removed and the process exits. If .INTERRUPT exists,
+ * its commands are run first WITH INTERRUPTS IGNORED..
+ *
+ *-----------------------------------------------------------------------
+ */
+static void
+CompatInterrupt (signo)
+ int signo;
+{
+ GNode *gn;
+
+ if ((curTarg != NILGNODE) && !Targ_Precious (curTarg)) {
+ char *p1;
+ char *file = Var_Value (TARGET, curTarg, &p1);
+
+ if (!noExecute && eunlink(file) != -1) {
+ Error("*** %s removed\n", file);
+ }
+ if (p1)
+ free(p1);
+
+ /*
+ * Run .INTERRUPT only if hit with interrupt signal
+ */
+ if (signo == SIGINT) {
+ gn = Targ_FindNode(".INTERRUPT", TARG_NOCREATE);
+ if (gn != NILGNODE) {
+ Lst_ForEach(gn->commands, CompatRunCommand, (ClientData)gn);
+ }
+ }
+
+ }
+ exit (signo);
+}
+
+/*-
+ *-----------------------------------------------------------------------
+ * CompatRunCommand --
+ * Execute the next command for a target. If the command returns an
+ * error, the node's made field is set to ERROR and creation stops.
+ *
+ * Results:
+ * 0 if the command succeeded, 1 if an error occurred.
+ *
+ * Side Effects:
+ * The node's 'made' field may be set to ERROR.
+ *
+ *-----------------------------------------------------------------------
+ */
+static int
+CompatRunCommand (cmdp, gnp)
+ ClientData cmdp; /* Command to execute */
+ ClientData gnp; /* Node from which the command came */
+{
+ char *cmdStart; /* Start of expanded command */
+ char *cp, *bp;
+ Boolean silent, /* Don't print command */
+ errCheck; /* Check errors */
+ WAIT_T reason; /* Reason for child's death */
+ int status; /* Description of child's death */
+ int cpid; /* Child actually found */
+ ReturnStatus stat; /* Status of fork */
+ LstNode cmdNode; /* Node where current command is located */
+ char **av; /* Argument vector for thing to exec */
+ int argc; /* Number of arguments in av or 0 if not
+ * dynamically allocated */
+ Boolean local; /* TRUE if command should be executed
+ * locally */
+ char *cmd = (char *) cmdp;
+ GNode *gn = (GNode *) gnp;
+
+ /*
+ * Avoid clobbered variable warnings by forcing the compiler
+ * to ``unregister'' variables
+ */
+#if __GNUC__
+ (void) &av;
+ (void) &errCheck;
+#endif
+ silent = gn->type & OP_SILENT;
+ errCheck = !(gn->type & OP_IGNORE);
+
+ cmdNode = Lst_Member (gn->commands, (ClientData)cmd);
+ cmdStart = Var_Subst (NULL, cmd, gn, FALSE);
+
+ /*
+ * brk_string will return an argv with a NULL in av[0], thus causing
+ * execvp to choke and die horribly. Besides, how can we execute a null
+ * command? In any case, we warn the user that the command expanded to
+ * nothing (is this the right thing to do?).
+ */
+
+ if (*cmdStart == '\0') {
+ free(cmdStart);
+ Error("%s expands to empty string", cmd);
+ return(0);
+ } else {
+ cmd = cmdStart;
+ }
+ Lst_Replace (cmdNode, (ClientData)cmdStart);
+
+ if ((gn->type & OP_SAVE_CMDS) && (gn != ENDNode)) {
+ (void)Lst_AtEnd(ENDNode->commands, (ClientData)cmdStart);
+ return(0);
+ } else if (strcmp(cmdStart, "...") == 0) {
+ gn->type |= OP_SAVE_CMDS;
+ return(0);
+ }
+
+ while ((*cmd == '@') || (*cmd == '-')) {
+ if (*cmd == '@') {
+ silent = TRUE;
+ } else {
+ errCheck = FALSE;
+ }
+ cmd++;
+ }
+
+ while (isspace((unsigned char)*cmd))
+ cmd++;
+
+ /*
+ * Search for meta characters in the command. If there are no meta
+ * characters, there's no need to execute a shell to execute the
+ * command.
+ */
+ for (cp = cmd; !meta[(unsigned char)*cp]; cp++) {
+ continue;
+ }
+
+ /*
+ * Print the command before echoing if we're not supposed to be quiet for
+ * this one. We also print the command if -n given.
+ */
+ if (!silent || NoExecute(gn)) {
+ printf ("%s\n", cmd);
+ fflush(stdout);
+ }
+
+ /*
+ * If we're not supposed to execute any commands, this is as far as
+ * we go...
+ */
+ if (NoExecute(gn)) {
+ return (0);
+ }
+
+ if (*cp != '\0') {
+ /*
+ * If *cp isn't the null character, we hit a "meta" character and
+ * need to pass the command off to the shell. We give the shell the
+ * -e flag as well as -c if it's supposed to exit when it hits an
+ * error.
+ */
+ static char *shargv[4] = { "/bin/sh" };
+
+ if (DEBUG(SHELL))
+ shargv[1] = (errCheck ? "-exc" : "-xc");
+ else
+ shargv[1] = (errCheck ? "-ec" : "-c");
+ shargv[2] = cmd;
+ shargv[3] = (char *)NULL;
+ av = shargv;
+ argc = 0;
+ bp = NULL;
+ } else {
+ /*
+ * No meta-characters, so no need to exec a shell. Break the command
+ * into words to form an argument vector we can execute.
+ */
+ av = brk_string(cmd, &argc, TRUE, &bp);
+ }
+
+ local = TRUE;
+
+ /*
+ * Fork and execute the single command. If the fork fails, we abort.
+ */
+ cpid = vfork();
+ if (cpid < 0) {
+ Fatal("Could not fork");
+ }
+ if (cpid == 0) {
+ Check_Cwd(av);
+ if (local)
+ (void)execvp(av[0], av);
+ else
+ (void)execv(av[0], av);
+ execError(av[0]);
+ _exit(1);
+ }
+ if (bp) {
+ free(av);
+ free(bp);
+ }
+ free(cmdStart);
+ Lst_Replace (cmdNode, (ClientData) NULL);
+
+ /*
+ * The child is off and running. Now all we can do is wait...
+ */
+ while (1) {
+
+ while ((stat = wait(&reason)) != cpid) {
+ if (stat == -1 && errno != EINTR) {
+ break;
+ }
+ }
+
+ if (stat > -1) {
+ if (WIFSTOPPED(reason)) {
+ status = WSTOPSIG(reason); /* stopped */
+ } else if (WIFEXITED(reason)) {
+ status = WEXITSTATUS(reason); /* exited */
+ if (status != 0) {
+ printf ("*** Error code %d", status);
+ }
+ } else {
+ status = WTERMSIG(reason); /* signaled */
+ printf ("*** Signal %d", status);
+ }
+
+
+ if (!WIFEXITED(reason) || (status != 0)) {
+ if (errCheck) {
+ gn->made = ERROR;
+ if (keepgoing) {
+ /*
+ * Abort the current target, but let others
+ * continue.
+ */
+ printf (" (continuing)\n");
+ }
+ } else {
+ /*
+ * Continue executing commands for this target.
+ * If we return 0, this will happen...
+ */
+ printf (" (ignored)\n");
+ status = 0;
+ }
+ }
+ break;
+ } else {
+ Fatal ("error in wait: %d: %s", stat, strerror(errno));
+ /*NOTREACHED*/
+ }
+ }
+
+ return (status);
+}
+
+/*-
+ *-----------------------------------------------------------------------
+ * CompatMake --
+ * Make a target.
+ *
+ * Results:
+ * 0
+ *
+ * Side Effects:
+ * If an error is detected and not being ignored, the process exits.
+ *
+ *-----------------------------------------------------------------------
+ */
+static int
+CompatMake (gnp, pgnp)
+ ClientData gnp; /* The node to make */
+ ClientData pgnp; /* Parent to abort if necessary */
+{
+ GNode *gn = (GNode *) gnp;
+ GNode *pgn = (GNode *) pgnp;
+
+ if (pgn->type & OP_MADE) {
+ (void) Dir_MTime(gn);
+ gn->made = UPTODATE;
+ }
+
+ if (gn->made == UNMADE) {
+ /*
+ * First mark ourselves to be made, then apply whatever transformations
+ * the suffix module thinks are necessary. Once that's done, we can
+ * descend and make all our children. If any of them has an error
+ * but the -k flag was given, our 'make' field will be set FALSE again.
+ * This is our signal to not attempt to do anything but abort our
+ * parent as well.
+ */
+ gn->flags |= REMAKE;
+ gn->made = BEINGMADE;
+ Suff_FindDeps (gn);
+ Lst_ForEach (gn->children, CompatMake, (ClientData)gn);
+ if ((gn->flags & REMAKE) == 0) {
+ gn->made = ABORTED;
+ pgn->flags &= ~REMAKE;
+ goto cohorts;
+ }
+
+ if (Lst_Member (gn->iParents, pgn) != NILLNODE) {
+ char *p1;
+ Var_Set (IMPSRC, Var_Value(TARGET, gn, &p1), pgn, 0);
+ if (p1)
+ free(p1);
+ }
+
+ /*
+ * All the children were made ok. Now cmtime contains the modification
+ * time of the newest child, we need to find out if we exist and when
+ * we were modified last. The criteria for datedness are defined by the
+ * Make_OODate function.
+ */
+ if (DEBUG(MAKE)) {
+ printf("Examining %s...", gn->name);
+ }
+ if (! Make_OODate(gn)) {
+ gn->made = UPTODATE;
+ if (DEBUG(MAKE)) {
+ printf("up-to-date.\n");
+ }
+ goto cohorts;
+ } else if (DEBUG(MAKE)) {
+ printf("out-of-date.\n");
+ }
+
+ /*
+ * If the user is just seeing if something is out-of-date, exit now
+ * to tell him/her "yes".
+ */
+ if (queryFlag) {
+ exit (1);
+ }
+
+ /*
+ * We need to be re-made. We also have to make sure we've got a $?
+ * variable. To be nice, we also define the $> variable using
+ * Make_DoAllVar().
+ */
+ Make_DoAllVar(gn);
+
+ /*
+ * Alter our type to tell if errors should be ignored or things
+ * should not be printed so CompatRunCommand knows what to do.
+ */
+ if (Targ_Ignore (gn)) {
+ gn->type |= OP_IGNORE;
+ }
+ if (Targ_Silent (gn)) {
+ gn->type |= OP_SILENT;
+ }
+
+ if (Job_CheckCommands (gn, Fatal)) {
+ /*
+ * Our commands are ok, but we still have to worry about the -t
+ * flag...
+ */
+ if (!touchFlag || (gn->type & OP_MAKE)) {
+ curTarg = gn;
+ Lst_ForEach (gn->commands, CompatRunCommand, (ClientData)gn);
+ curTarg = NILGNODE;
+ } else {
+ Job_Touch (gn, gn->type & OP_SILENT);
+ }
+ } else {
+ gn->made = ERROR;
+ }
+
+ if (gn->made != ERROR) {
+ /*
+ * If the node was made successfully, mark it so, update
+ * its modification time and timestamp all its parents. Note
+ * that for .ZEROTIME targets, the timestamping isn't done.
+ * This is to keep its state from affecting that of its parent.
+ */
+ gn->made = MADE;
+ pgn->flags |= Make_Recheck(gn) == 0 ? FORCE : 0;
+ if (!(gn->type & OP_EXEC)) {
+ pgn->flags |= CHILDMADE;
+ Make_TimeStamp(pgn, gn);
+ }
+ } else if (keepgoing) {
+ pgn->flags &= ~REMAKE;
+ } else {
+ PrintOnError("\n\nStop.");
+ exit (1);
+ }
+ } else if (gn->made == ERROR) {
+ /*
+ * Already had an error when making this beastie. Tell the parent
+ * to abort.
+ */
+ pgn->flags &= ~REMAKE;
+ } else {
+ if (Lst_Member (gn->iParents, pgn) != NILLNODE) {
+ char *p1;
+ Var_Set (IMPSRC, Var_Value(TARGET, gn, &p1), pgn, 0);
+ if (p1)
+ free(p1);
+ }
+ switch(gn->made) {
+ case BEINGMADE:
+ Error("Graph cycles through %s\n", gn->name);
+ gn->made = ERROR;
+ pgn->flags &= ~REMAKE;
+ break;
+ case MADE:
+ if ((gn->type & OP_EXEC) == 0) {
+ pgn->flags |= CHILDMADE;
+ Make_TimeStamp(pgn, gn);
+ }
+ break;
+ case UPTODATE:
+ if ((gn->type & OP_EXEC) == 0) {
+ Make_TimeStamp(pgn, gn);
+ }
+ break;
+ default:
+ break;
+ }
+ }
+
+cohorts:
+ Lst_ForEach (gn->cohorts, CompatMake, pgnp);
+ return (0);
+}
+
+/*-
+ *-----------------------------------------------------------------------
+ * Compat_Run --
+ * Initialize this mode and start making.
+ *
+ * Results:
+ * None.
+ *
+ * Side Effects:
+ * Guess what?
+ *
+ *-----------------------------------------------------------------------
+ */
+void
+Compat_Run(targs)
+ Lst targs; /* List of target nodes to re-create */
+{
+ char *cp; /* Pointer to string of shell meta-characters */
+ GNode *gn = NULL;/* Current root target */
+ int errors; /* Number of targets not remade due to errors */
+
+ if (signal(SIGINT, SIG_IGN) != SIG_IGN) {
+ signal(SIGINT, CompatInterrupt);
+ }
+ if (signal(SIGTERM, SIG_IGN) != SIG_IGN) {
+ signal(SIGTERM, CompatInterrupt);
+ }
+ if (signal(SIGHUP, SIG_IGN) != SIG_IGN) {
+ signal(SIGHUP, CompatInterrupt);
+ }
+ if (signal(SIGQUIT, SIG_IGN) != SIG_IGN) {
+ signal(SIGQUIT, CompatInterrupt);
+ }
+
+ for (cp = "#=|^(){};&<>*?[]:$`\\\n"; *cp != '\0'; cp++) {
+ meta[(unsigned char) *cp] = 1;
+ }
+ /*
+ * The null character serves as a sentinel in the string.
+ */
+ meta[0] = 1;
+
+ ENDNode = Targ_FindNode(".END", TARG_CREATE);
+ /*
+ * If the user has defined a .BEGIN target, execute the commands attached
+ * to it.
+ */
+ if (!queryFlag) {
+ gn = Targ_FindNode(".BEGIN", TARG_NOCREATE);
+ if (gn != NILGNODE) {
+ Lst_ForEach(gn->commands, CompatRunCommand, (ClientData)gn);
+ if (gn->made == ERROR) {
+ PrintOnError("\n\nStop.");
+ exit(1);
+ }
+ }
+ }
+
+ /*
+ * Expand .USE nodes right now, because they can modify the structure
+ * of the tree.
+ */
+ Lst_Destroy(Make_ExpandUse(targs), NOFREE);
+
+ /*
+ * For each entry in the list of targets to create, call CompatMake on
+ * it to create the thing. CompatMake will leave the 'made' field of gn
+ * in one of several states:
+ * UPTODATE gn was already up-to-date
+ * MADE gn was recreated successfully
+ * ERROR An error occurred while gn was being created
+ * ABORTED gn was not remade because one of its inferiors
+ * could not be made due to errors.
+ */
+ errors = 0;
+ while (!Lst_IsEmpty (targs)) {
+ gn = (GNode *) Lst_DeQueue (targs);
+ CompatMake (gn, gn);
+
+ if (gn->made == UPTODATE) {
+ printf ("`%s' is up to date.\n", gn->name);
+ } else if (gn->made == ABORTED) {
+ printf ("`%s' not remade because of errors.\n", gn->name);
+ errors += 1;
+ }
+ }
+
+ /*
+ * If the user has defined a .END target, run its commands.
+ */
+ if (errors == 0) {
+ Lst_ForEach(ENDNode->commands, CompatRunCommand, (ClientData)gn);
+ if (gn->made == ERROR) {
+ PrintOnError("\n\nStop.");
+ exit(1);
+ }
+ }
+}
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