Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/config/mkmakefile.c	Lines:	0	240	0.0 %
Date:	2017-11-13	Branches:	0	228	0.0 %


/*	$OpenBSD: mkmakefile.c,v 1.45 2017/11/05 10:29:24 rpe Exp $	*/
/*	$NetBSD: mkmakefile.c,v 1.34 1997/02/02 21:12:36 thorpej Exp $	*/

/*
 * Copyright (c) 1992, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * This software was developed by the Computer Systems Engineering group
 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
 * contributed to Berkeley.
 *
 * 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, Lawrence Berkeley Laboratories.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    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.
 *
 *	from: @(#)mkmakefile.c	8.1 (Berkeley) 6/6/93
 */

#include <ctype.h>
#include <err.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "config.h"
#include "sem.h"

/*
 * Make the Makefile.
 */

static const char *srcpath(struct files *);

static int emitdefs(FILE *);
static int emitreconfig(FILE *);
static int emitfiles(FILE *, int);

static int emitobjs(FILE *);
static int emitcfiles(FILE *);
static int emitsfiles(FILE *);
static int emitrules(FILE *);
static int emitload(FILE *);

int
mkmakefile(void)
{
	FILE *ifp, *ofp;
	int lineno;
	int (*fn)(FILE *);
	char *ifname;
	char line[BUFSIZ], buf[200];

	(void)snprintf(buf, sizeof buf, "arch/%s/conf/Makefile.%s",
	    machine, machine);
	ifname = sourcepath(buf);
	if ((ifp = fopen(ifname, "r")) == NULL) {
		warn("cannot read %s", ifname);
		free(ifname);
		return (1);
	}
	if ((ofp = fopen("Makefile", "w")) == NULL) {
		warn("cannot write Makefile");
		free(ifname);
		(void)fclose(ifp);
		return (1);
	}
	if (emitdefs(ofp) != 0)
		goto wrerror;
	lineno = 0;
	while (fgets(line, sizeof(line), ifp) != NULL) {
		lineno++;
		if (line[0] != '%') {
			if (fputs(line, ofp) < 0)
				goto wrerror;
			continue;
		}
		if (strcmp(line, "%OBJS\n") == 0)
			fn = emitobjs;
		else if (strcmp(line, "%CFILES\n") == 0)
			fn = emitcfiles;
		else if (strcmp(line, "%SFILES\n") == 0)
			fn = emitsfiles;
		else if (strcmp(line, "%RULES\n") == 0)
			fn = emitrules;
		else if (strcmp(line, "%LOAD\n") == 0)
			fn = emitload;
		else {
			xerror(ifname, lineno,
			    "unknown %% construct ignored: %s", line);
			continue;
		}
		if ((*fn)(ofp))
			goto wrerror;
	}
	if (startdir != NULL) {
		if (emitreconfig(ofp) != 0)
			goto wrerror;
	}
	if (ferror(ifp)) {
		warn("error reading %s (at line %d)", ifname, lineno);
		goto bad;
	}
	if (fclose(ofp)) {
		ofp = NULL;
		goto wrerror;
	}
	(void)fclose(ifp);
	free(ifname);
	return (0);
wrerror:
	warn("error writing Makefile");
bad:
	if (ofp != NULL)
		(void)fclose(ofp);
	/* (void)unlink("Makefile"); */
	free(ifname);
	return (1);
}

char *
expandname(const char *_nam)
{
	char *ret = NULL, *nam, *n, *s, *e, *expand;
	const char *var = NULL;

	if ((nam = n = strdup(_nam)) == NULL)
		errx(1, "out of memory");

	while (*n) {
		/* Search for a ${name} to expand */
		if ((s = strchr(n, '$')) == NULL) {
			if (ret == NULL)
				break;
			if (asprintf(&expand, "%s%s", ret, n) == -1)
				errx(1, "out of memory");
			free(ret);
			ret = expand;
			break;
		}
		*s++ = '\0';
		if (*s != '{')
			error("{");
		e = strchr(++s, '}');
		if (!e)
			error("}");
		*e = '\0';

		if (strcmp(s, "MACHINE_ARCH") == 0)
			var = machinearch ? machinearch : machine;
		else if (strcmp(s, "MACHINE") == 0)
			var = machine;
		else
			error("variable `%s' not supported", s);

		if (asprintf(&expand, "%s%s", ret ? ret : nam, var) == -1)
			errx(1, "out of memory");
		free(ret);
		ret = expand;
		n = e + 1;
	}
	free(nam);
	return (ret);
}

/*
 * Return (possibly in a static buffer) the name of the `source' for a
 * file.  If we have `options source', or if the file is marked `always
 * source', this is always the path from the `file' line; otherwise we
 * get the .o from the obj-directory.
 */
static const char *
srcpath(struct files *fi)
{
	/* Always have source, don't support object dirs for kernel builds. */
	struct nvlist *nv, *nv1;
	char *expand, *source;

	/* Search path list for files we will want to use */
	if (fi->fi_nvpath->nv_next == NULL) {
		nv = fi->fi_nvpath;
		goto onlyone;
	}

	for (nv = fi->fi_nvpath; nv; nv = nv->nv_next) {
		expand = expandname(nv->nv_name);
		source = sourcepath(expand ? expand : nv->nv_name);
		if (access(source, R_OK) == 0) {
			/* XXX poolalloc() prevents freeing old nv_name */
			if (expand)
				nv->nv_name = intern(expand);
			break;
		}
		free(expand);
		free(source);
	}
	if (nv == NULL)
		nv = fi->fi_nvpath;

	/*
	 * Now that we know which path is selected, delete all the
	 * other paths to skip the access() checks next time.
	 */
	while ((nv1 = fi->fi_nvpath)) {
		nv1 = nv1->nv_next;
		if (fi->fi_nvpath != nv)
			nvfree(fi->fi_nvpath);
		fi->fi_nvpath = nv1;
	}
	fi->fi_nvpath = nv;
	nv->nv_next = NULL;
onlyone:
	return (nv->nv_name);
}

static int
emitdefs(FILE *fp)
{
	struct nvlist *nv;
	char *sp;

	if (fputs("IDENT=", fp) < 0)
		return (1);
	sp = "";
	for (nv = options; nv != NULL; nv = nv->nv_next) {
		if (ht_lookup(defopttab, nv->nv_name) != NULL)
			continue;
		if (fprintf(fp, "%s-D%s", sp, nv->nv_name) < 0)
		    return 1;
		if (nv->nv_str)
		    if (fprintf(fp, "=\"%s\"", nv->nv_str) < 0)
			return 1;
		sp = " ";
	}
	if (putc('\n', fp) < 0)
		return (1);
	if (fprintf(fp, "PARAM=-DMAXUSERS=%d\n", maxusers) < 0)
		return (1);
	if (fprintf(fp, "S=\t%s\n", srcdir) < 0)
		return (1);
	if (fprintf(fp, "_mach=%s\n", machine) < 0)
		return (1);
	if (fprintf(fp, "_arch=%s\n", machinearch ? machinearch : machine) < 0)
		return (1);
	for (nv = mkoptions; nv != NULL; nv = nv->nv_next)
		if (fprintf(fp, "%s=%s\n", nv->nv_name, nv->nv_str) < 0)
			return (1);
	return (0);
}

static int
emitreconfig(FILE *fp)
{
	if (fputs("\n"
	    ".PHONY: config\n"
	    "config:\n", fp) < 0)
		return (1);
	if (fprintf(fp, "\tcd %s && config ", startdir) < 0)
		return (1);
	if (pflag) {
		if (fputs("-p ", fp) < 0)
			return (1);
	}
	if (sflag) {
		if (fprintf(fp, "-s %s ", sflag) < 0)
			return (1);
	}
	if (bflag) {
		if (fprintf(fp, "-b %s ", bflag) < 0)
			return (1);
	}
	/* other options */
	if (fprintf(fp, "%s\n", conffile) < 0)
		return (1);
	return (0);
}

static int
emitobjs(FILE *fp)
{
	struct files *fi;
	struct objects *oi;
	int lpos, len, sp;
	const char *fpath;

	if (fputs("OBJS=", fp) < 0)
		return (1);
	sp = '\t';
	lpos = 7;
	for (fi = allfiles; fi != NULL; fi = fi->fi_next) {
		if ((fi->fi_flags & FI_SEL) == 0)
			continue;
		if ((fpath = srcpath(fi)) == NULL)
			return (1);
		len = strlen(fi->fi_base) + 3;
		if (lpos + len > 72) {
			if (fputs(" \\\n", fp) < 0)
				return (1);
			sp = '\t';
			lpos = 7;
		}
		if (fprintf(fp, "%c%s.o", sp, fi->fi_base) < 0)
			return (1);
		lpos += len + 1;
		sp = ' ';
	}
	for (oi = allobjects; oi != NULL; oi = oi->oi_next) {
		if ((oi->oi_flags & OI_SEL) == 0)
			continue;
		len = strlen(oi->oi_path) + 3;
		if (lpos + len > 72) {
			if (fputs(" \\\n", fp) < 0)
				return (1);
			sp = '\t';
			lpos = 7;
		}
		if (fprintf(fp, "%c$S/%s", sp, oi->oi_path) < 0)
			return (1);
		lpos += len + 1;
		sp = ' ';
	}
	if (putc('\n', fp) < 0)
		return (1);
	return (0);
}

static int
emitcfiles(FILE *fp)
{

	return (emitfiles(fp, 'c'));
}

static int
emitsfiles(FILE *fp)
{

	return (emitfiles(fp, 's'));
}

static int
emitfiles(FILE *fp, int suffix)
{
	struct files *fi;
	int lpos, len, sp;
	const char *fpath;
	char uppersuffix = toupper((unsigned char)suffix);

	if (fprintf(fp, "%cFILES=", uppersuffix) < 0)
		return (1);
	sp = '\t';
	lpos = 7;
	for (fi = allfiles; fi != NULL; fi = fi->fi_next) {
		if ((fi->fi_flags & FI_SEL) == 0)
			continue;
		if ((fpath = srcpath(fi)) == NULL)
			return (1);
		len = strlen(fpath);
		if (fpath[len - 1] != suffix && fpath[len - 1] != uppersuffix)
			continue;
		if (*fpath != '/')
			len += 3;	/* "$S/" */
		if (lpos + len > 72) {
			if (fputs(" \\\n", fp) < 0)
				return (1);
			sp = '\t';
			lpos = 7;
		}
		if (fprintf(fp, "%c%s%s", sp, *fpath != '/' ? "$S/" : "",
		    fpath) < 0)
			return (1);
		lpos += len + 1;
		sp = ' ';
	}
	if (putc('\n', fp) < 0)
		return (1);
	return (0);
}

/*
 * Emit the make-rules.
 */
static int
emit_1rule(FILE *fp, struct files *fi, const char *fpath, const char *suffix)
{
	if (fprintf(fp, "%s%s: %s%s\n", fi->fi_base, suffix,
	    *fpath != '/' ? "$S/" : "", fpath) < 0)
		return (1);
	if (fi->fi_mkrule != NULL) {
		if (fprintf(fp, "\t%s\n\n", fi->fi_mkrule) < 0)
			return (1);
	}
	return (0);
}

static int
emitrules(FILE *fp)
{
	struct files *fi;
	const char *fpath;

	/* write suffixes */
	if (fprintf(fp,
	    ".SUFFIXES:\n"
	    ".SUFFIXES: .s .S .c .o\n\n"

	    ".PHONY: depend all install clean tags newbsd update-link\n\n"

	    ".c.o:\n"
	    "\t${NORMAL_C}\n\n"

	    ".s.o:\n"
	    "\t${NORMAL_S}\n\n"

	    ".S.o:\n"
	    "\t${NORMAL_S}\n\n") < 0)
		return (1);


	for (fi = allfiles; fi != NULL; fi = fi->fi_next) {
		if ((fi->fi_flags & FI_SEL) == 0)
			continue;
		if ((fpath = srcpath(fi)) == NULL)
			return (1);
		/* special rule: need to emit them independently */
		if (fi->fi_mkrule) {
			if (emit_1rule(fp, fi, fpath, ".o"))
				return (1);
		/* simple default rule */
		} else {
			if (fprintf(fp, "%s.o: %s%s\n", fi->fi_base,
			    *fpath != '/' ? "$S/" : "", fpath) < 0)
				return (1);
		}

	}
	return (0);
}

/*
 * Emit the load commands.
 *
 * This function is not to be called `spurt'.
 */
static int
emitload(FILE *fp)
{
	struct config *cf;
	const char *nm, *swname;
	int first;

	if (fputs("all:", fp) < 0)
		return (1);
	for (cf = allcf; cf != NULL; cf = cf->cf_next) {
		if (fprintf(fp, " %s", cf->cf_name) < 0)
			return (1);
	}
	if (fputs("\n\n", fp) < 0)
		return (1);
	for (first = 1, cf = allcf; cf != NULL; cf = cf->cf_next) {
		nm = cf->cf_name;
		swname =
		    cf->cf_root != NULL ? cf->cf_name : "generic";
		if (fprintf(fp, "%s: ${SYSTEM_DEP} swap%s.o", nm, swname) < 0)
			return (1);
		if (first) {
			if (fputs(" vers.o", fp) < 0)
				return (1);
			first = 0;
		}
		if (fprintf(fp, "\n"
		    "\t${SYSTEM_LD_HEAD}\n"
		    "\t${SYSTEM_LD} swap%s.o\n"
		    "\t${SYSTEM_LD_TAIL}\n"
		    "\n"
		    "swap%s.o: ", swname, swname) < 0)
			return (1);
		if (cf->cf_root != NULL) {
			if (fprintf(fp, "swap%s.c\n", nm) < 0)
				return (1);
		} else {
			if (fprintf(fp, "$S/conf/swapgeneric.c\n") < 0)
				return (1);
		}
		if (fputs("\t${NORMAL_C}\n\n", fp) < 0)
			return (1);

		if (fprintf(fp, "new%s:\n", nm) < 0)
			return (1);
		if (fprintf(fp,
		    "\t${MAKE_GAP}\n"
		    "\t${SYSTEM_LD_HEAD}\n"
		    "\t${SYSTEM_LD} swap%s.o\n"
		    "\t${SYSTEM_LD_TAIL}\n"
		    "\tmv -f new%s %s\n\n",
		    swname, nm, nm) < 0)
			return (1);

		if (fprintf(fp, "update-link:\n") < 0)
			return (1);
		if (fprintf(fp,
		    "\tmkdir -p -m 700 /usr/share/relink/kernel\n"
		    "\trm -rf /usr/share/relink/kernel/%s /usr/share/relink/kernel.tgz\n"
		    "\tmkdir /usr/share/relink/kernel/%s\n"
		    "\ttar -chf - Makefile makegap.sh ld.script *.o | \\\n"
		    "\t    tar -C /usr/share/relink/kernel/%s -xf -\n\n",
		    last_component, last_component, last_component) < 0)
			return (1);
	}
	return (0);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: mkmakefile.c,v 1.45 2017/11/05 10:29:24 rpe Exp $ */
2			/* $NetBSD: mkmakefile.c,v 1.34 1997/02/02 21:12:36 thorpej Exp $ */
3
4			/*
5			* Copyright (c) 1992, 1993
6			* The Regents of the University of California. All rights reserved.
7			*
8			* This software was developed by the Computer Systems Engineering group
9			* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
10			* contributed to Berkeley.
11			*
12			* All advertising materials mentioning features or use of this software
13			* must display the following acknowledgement:
14			* This product includes software developed by the University of
15			* California, Lawrence Berkeley Laboratories.
16			*
17			* Redistribution and use in source and binary forms, with or without
18			* modification, are permitted provided that the following conditions
19			* are met:
20			* 1. Redistributions of source code must retain the above copyright
21			* notice, this list of conditions and the following disclaimer.
22			* 2. Redistributions in binary form must reproduce the above copyright
23			* notice, this list of conditions and the following disclaimer in the
24			* documentation and/or other materials provided with the distribution.
25			* 3. Neither the name of the University nor the names of its contributors
26			* may be used to endorse or promote products derived from this software
27			* without specific prior written permission.
28			*
29			* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
30			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
31			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
32			* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
33			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
37			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
38			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39			* SUCH DAMAGE.
40			*
41			* from: @(#)mkmakefile.c 8.1 (Berkeley) 6/6/93
42			*/
43
44			#include <ctype.h>
45			#include <err.h>
46			#include <errno.h>
47			#include <stdio.h>
48			#include <stdlib.h>
49			#include <string.h>
50
51			#include "config.h"
52			#include "sem.h"
53
54			/*
55			* Make the Makefile.
56			*/
57
58			static const char srcpath(struct files );
59
60			static int emitdefs(FILE *);
61			static int emitreconfig(FILE *);
62			static int emitfiles(FILE *, int);
63
64			static int emitobjs(FILE *);
65			static int emitcfiles(FILE *);
66			static int emitsfiles(FILE *);
67			static int emitrules(FILE *);
68			static int emitload(FILE *);
69
70			int
71			mkmakefile(void)
72			{
73			FILE ifp, ofp;
74			int lineno;
75			int (fn)(FILE );
76			char *ifname;
77			char line[BUFSIZ], buf[200];
78
79			(void)snprintf(buf, sizeof buf, "arch/%s/conf/Makefile.%s",
80			machine, machine);
81			ifname = sourcepath(buf);
82			if ((ifp = fopen(ifname, "r")) == NULL) {
83			warn("cannot read %s", ifname);
84			free(ifname);
85			return (1);
86			}
87			if ((ofp = fopen("Makefile", "w")) == NULL) {
88			warn("cannot write Makefile");
89			free(ifname);
90			(void)fclose(ifp);
91			return (1);
92			}
93			if (emitdefs(ofp) != 0)
94			goto wrerror;
95			lineno = 0;
96			while (fgets(line, sizeof(line), ifp) != NULL) {
97			lineno++;
98			if (line[0] != '%') {
99			if (fputs(line, ofp) < 0)
100			goto wrerror;
101			continue;
102			}
103			if (strcmp(line, "%OBJS\n") == 0)
104			fn = emitobjs;
105			else if (strcmp(line, "%CFILES\n") == 0)
106			fn = emitcfiles;
107			else if (strcmp(line, "%SFILES\n") == 0)
108			fn = emitsfiles;
109			else if (strcmp(line, "%RULES\n") == 0)
110			fn = emitrules;
111			else if (strcmp(line, "%LOAD\n") == 0)
112			fn = emitload;
113			else {
114			xerror(ifname, lineno,
115			"unknown %% construct ignored: %s", line);
116			continue;
117			}
118			if ((*fn)(ofp))
119			goto wrerror;
120			}
121			if (startdir != NULL) {
122			if (emitreconfig(ofp) != 0)
123			goto wrerror;
124			}
125			if (ferror(ifp)) {
126			warn("error reading %s (at line %d)", ifname, lineno);
127			goto bad;
128			}
129			if (fclose(ofp)) {
130			ofp = NULL;
131			goto wrerror;
132			}
133			(void)fclose(ifp);
134			free(ifname);
135			return (0);
136			wrerror:
137			warn("error writing Makefile");
138			bad:
139			if (ofp != NULL)
140			(void)fclose(ofp);
141			/* (void)unlink("Makefile"); */
142			free(ifname);
143			return (1);
144			}
145
146			char *
147			expandname(const char *_nam)
148			{
149			char ret = NULL, nam, n, s, e, expand;
150			const char *var = NULL;
151
152			if ((nam = n = strdup(_nam)) == NULL)
153			errx(1, "out of memory");
154
155			while (*n) {
156			/* Search for a ${name} to expand */
157			if ((s = strchr(n, '$')) == NULL) {
158			if (ret == NULL)
159			break;
160			if (asprintf(&expand, "%s%s", ret, n) == -1)
161			errx(1, "out of memory");
162			free(ret);
163			ret = expand;
164			break;
165			}
166			*s++ = '\0';
167			if (*s != '{')
168			error("{");
169			e = strchr(++s, '}');
170			if (!e)
171			error("}");
172			*e = '\0';
173
174			if (strcmp(s, "MACHINE_ARCH") == 0)
175			var = machinearch ? machinearch : machine;
176			else if (strcmp(s, "MACHINE") == 0)
177			var = machine;
178			else
179			error("variable `%s' not supported", s);
180
181			if (asprintf(&expand, "%s%s", ret ? ret : nam, var) == -1)
182			errx(1, "out of memory");
183			free(ret);
184			ret = expand;
185			n = e + 1;
186			}
187			free(nam);
188			return (ret);
189			}
190
191			/*
192			* Return (possibly in a static buffer) the name of the `source' for a
193			* file. If we have `options source', or if the file is marked `always
194			* source', this is always the path from the `file' line; otherwise we
195			* get the .o from the obj-directory.
196			*/
197			static const char *
198			srcpath(struct files *fi)
199			{
200			/* Always have source, don't support object dirs for kernel builds. */
201			struct nvlist nv, nv1;
202			char expand, source;
203
204			/* Search path list for files we will want to use */
205			if (fi->fi_nvpath->nv_next == NULL) {
206			nv = fi->fi_nvpath;
207			goto onlyone;
208			}
209
210			for (nv = fi->fi_nvpath; nv; nv = nv->nv_next) {
211			expand = expandname(nv->nv_name);
212			source = sourcepath(expand ? expand : nv->nv_name);
213			if (access(source, R_OK) == 0) {
214			/* XXX poolalloc() prevents freeing old nv_name */
215			if (expand)
216			nv->nv_name = intern(expand);
217			break;
218			}
219			free(expand);
220			free(source);
221			}
222			if (nv == NULL)
223			nv = fi->fi_nvpath;
224
225			/*
226			* Now that we know which path is selected, delete all the
227			* other paths to skip the access() checks next time.
228			*/
229			while ((nv1 = fi->fi_nvpath)) {
230			nv1 = nv1->nv_next;
231			if (fi->fi_nvpath != nv)
232			nvfree(fi->fi_nvpath);
233			fi->fi_nvpath = nv1;
234			}
235			fi->fi_nvpath = nv;
236			nv->nv_next = NULL;
237			onlyone:
238			return (nv->nv_name);
239			}
240
241			static int
242			emitdefs(FILE *fp)
243			{
244			struct nvlist *nv;
245			char *sp;
246
247			if (fputs("IDENT=", fp) < 0)
248			return (1);
249			sp = "";
250			for (nv = options; nv != NULL; nv = nv->nv_next) {
251			if (ht_lookup(defopttab, nv->nv_name) != NULL)
252			continue;
253			if (fprintf(fp, "%s-D%s", sp, nv->nv_name) < 0)
254			return 1;
255			if (nv->nv_str)
256			if (fprintf(fp, "=\"%s\"", nv->nv_str) < 0)
257			return 1;
258			sp = " ";
259			}
260			if (putc('\n', fp) < 0)
261			return (1);
262			if (fprintf(fp, "PARAM=-DMAXUSERS=%d\n", maxusers) < 0)
263			return (1);
264			if (fprintf(fp, "S=\t%s\n", srcdir) < 0)
265			return (1);
266			if (fprintf(fp, "_mach=%s\n", machine) < 0)
267			return (1);
268			if (fprintf(fp, "_arch=%s\n", machinearch ? machinearch : machine) < 0)
269			return (1);
270			for (nv = mkoptions; nv != NULL; nv = nv->nv_next)
271			if (fprintf(fp, "%s=%s\n", nv->nv_name, nv->nv_str) < 0)
272			return (1);
273			return (0);
274			}
275
276			static int
277			emitreconfig(FILE *fp)
278			{
279			if (fputs("\n"
280			".PHONY: config\n"
281			"config:\n", fp) < 0)
282			return (1);
283			if (fprintf(fp, "\tcd %s && config ", startdir) < 0)
284			return (1);
285			if (pflag) {
286			if (fputs("-p ", fp) < 0)
287			return (1);
288			}
289			if (sflag) {
290			if (fprintf(fp, "-s %s ", sflag) < 0)
291			return (1);
292			}
293			if (bflag) {
294			if (fprintf(fp, "-b %s ", bflag) < 0)
295			return (1);
296			}
297			/* other options */
298			if (fprintf(fp, "%s\n", conffile) < 0)
299			return (1);
300			return (0);
301			}
302
303			static int
304			emitobjs(FILE *fp)
305			{
306			struct files *fi;
307			struct objects *oi;
308			int lpos, len, sp;
309			const char *fpath;
310
311			if (fputs("OBJS=", fp) < 0)
312			return (1);
313			sp = '\t';
314			lpos = 7;
315			for (fi = allfiles; fi != NULL; fi = fi->fi_next) {
316			if ((fi->fi_flags & FI_SEL) == 0)
317			continue;
318			if ((fpath = srcpath(fi)) == NULL)
319			return (1);
320			len = strlen(fi->fi_base) + 3;
321			if (lpos + len > 72) {
322			if (fputs(" \\\n", fp) < 0)
323			return (1);
324			sp = '\t';
325			lpos = 7;
326			}
327			if (fprintf(fp, "%c%s.o", sp, fi->fi_base) < 0)
328			return (1);
329			lpos += len + 1;
330			sp = ' ';
331			}
332			for (oi = allobjects; oi != NULL; oi = oi->oi_next) {
333			if ((oi->oi_flags & OI_SEL) == 0)
334			continue;
335			len = strlen(oi->oi_path) + 3;
336			if (lpos + len > 72) {
337			if (fputs(" \\\n", fp) < 0)
338			return (1);
339			sp = '\t';
340			lpos = 7;
341			}
342			if (fprintf(fp, "%c$S/%s", sp, oi->oi_path) < 0)
343			return (1);
344			lpos += len + 1;
345			sp = ' ';
346			}
347			if (putc('\n', fp) < 0)
348			return (1);
349			return (0);
350			}
351
352			static int
353			emitcfiles(FILE *fp)
354			{
355
356			return (emitfiles(fp, 'c'));
357			}
358
359			static int
360			emitsfiles(FILE *fp)
361			{
362
363			return (emitfiles(fp, 's'));
364			}
365
366			static int
367			emitfiles(FILE *fp, int suffix)
368			{
369			struct files *fi;
370			int lpos, len, sp;
371			const char *fpath;
372			char uppersuffix = toupper((unsigned char)suffix);
373
374			if (fprintf(fp, "%cFILES=", uppersuffix) < 0)
375			return (1);
376			sp = '\t';
377			lpos = 7;
378			for (fi = allfiles; fi != NULL; fi = fi->fi_next) {
379			if ((fi->fi_flags & FI_SEL) == 0)
380			continue;
381			if ((fpath = srcpath(fi)) == NULL)
382			return (1);
383			len = strlen(fpath);
384			if (fpath[len - 1] != suffix && fpath[len - 1] != uppersuffix)
385			continue;
386			if (*fpath != '/')
387			len += 3; /* "$S/" */
388			if (lpos + len > 72) {
389			if (fputs(" \\\n", fp) < 0)
390			return (1);
391			sp = '\t';
392			lpos = 7;
393			}
394			if (fprintf(fp, "%c%s%s", sp, *fpath != '/' ? "$S/" : "",
395			fpath) < 0)
396			return (1);
397			lpos += len + 1;
398			sp = ' ';
399			}
400			if (putc('\n', fp) < 0)
401			return (1);
402			return (0);
403			}
404
405			/*
406			* Emit the make-rules.
407			*/
408			static int
409			emit_1rule(FILE fp, struct files fi, const char fpath, const char suffix)
410			{
411			if (fprintf(fp, "%s%s: %s%s\n", fi->fi_base, suffix,
412			*fpath != '/' ? "$S/" : "", fpath) < 0)
413			return (1);
414			if (fi->fi_mkrule != NULL) {
415			if (fprintf(fp, "\t%s\n\n", fi->fi_mkrule) < 0)
416			return (1);
417			}
418			return (0);
419			}
420
421			static int
422			emitrules(FILE *fp)
423			{
424			struct files *fi;
425			const char *fpath;
426
427			/* write suffixes */
428			if (fprintf(fp,
429			".SUFFIXES:\n"
430			".SUFFIXES: .s .S .c .o\n\n"
431
432			".PHONY: depend all install clean tags newbsd update-link\n\n"
433
434			".c.o:\n"
435			"\t${NORMAL_C}\n\n"
436
437			".s.o:\n"
438			"\t${NORMAL_S}\n\n"
439
440			".S.o:\n"
441			"\t${NORMAL_S}\n\n") < 0)
442			return (1);
443
444
445			for (fi = allfiles; fi != NULL; fi = fi->fi_next) {
446			if ((fi->fi_flags & FI_SEL) == 0)
447			continue;
448			if ((fpath = srcpath(fi)) == NULL)
449			return (1);
450			/* special rule: need to emit them independently */
451			if (fi->fi_mkrule) {
452			if (emit_1rule(fp, fi, fpath, ".o"))
453			return (1);
454			/* simple default rule */
455			} else {
456			if (fprintf(fp, "%s.o: %s%s\n", fi->fi_base,
457			*fpath != '/' ? "$S/" : "", fpath) < 0)
458			return (1);
459			}
460
461			}
462			return (0);
463			}
464
465			/*
466			* Emit the load commands.
467			*
468			* This function is not to be called `spurt'.
469			*/
470			static int
471			emitload(FILE *fp)
472			{
473			struct config *cf;
474			const char nm, swname;
475			int first;
476
477			if (fputs("all:", fp) < 0)
478			return (1);
479			for (cf = allcf; cf != NULL; cf = cf->cf_next) {
480			if (fprintf(fp, " %s", cf->cf_name) < 0)
481			return (1);
482			}
483			if (fputs("\n\n", fp) < 0)
484			return (1);
485			for (first = 1, cf = allcf; cf != NULL; cf = cf->cf_next) {
486			nm = cf->cf_name;
487			swname =
488			cf->cf_root != NULL ? cf->cf_name : "generic";
489			if (fprintf(fp, "%s: ${SYSTEM_DEP} swap%s.o", nm, swname) < 0)
490			return (1);
491			if (first) {
492			if (fputs(" vers.o", fp) < 0)
493			return (1);
494			first = 0;
495			}
496			if (fprintf(fp, "\n"
497			"\t${SYSTEM_LD_HEAD}\n"
498			"\t${SYSTEM_LD} swap%s.o\n"
499			"\t${SYSTEM_LD_TAIL}\n"
500			"\n"
501			"swap%s.o: ", swname, swname) < 0)
502			return (1);
503			if (cf->cf_root != NULL) {
504			if (fprintf(fp, "swap%s.c\n", nm) < 0)
505			return (1);
506			} else {
507			if (fprintf(fp, "$S/conf/swapgeneric.c\n") < 0)
508			return (1);
509			}
510			if (fputs("\t${NORMAL_C}\n\n", fp) < 0)
511			return (1);
512
513			if (fprintf(fp, "new%s:\n", nm) < 0)
514			return (1);
515			if (fprintf(fp,
516			"\t${MAKE_GAP}\n"
517			"\t${SYSTEM_LD_HEAD}\n"
518			"\t${SYSTEM_LD} swap%s.o\n"
519			"\t${SYSTEM_LD_TAIL}\n"
520			"\tmv -f new%s %s\n\n",
521			swname, nm, nm) < 0)
522			return (1);
523
524			if (fprintf(fp, "update-link:\n") < 0)
525			return (1);
526			if (fprintf(fp,
527			"\tmkdir -p -m 700 /usr/share/relink/kernel\n"
528			"\trm -rf /usr/share/relink/kernel/%s /usr/share/relink/kernel.tgz\n"
529			"\tmkdir /usr/share/relink/kernel/%s\n"
530			"\ttar -chf - Makefile makegap.sh ld.script *.o \| \\\n"
531			"\t tar -C /usr/share/relink/kernel/%s -xf -\n\n",
532			last_component, last_component, last_component) < 0)
533			return (1);
534			}
535			return (0);
536			}