src/usr.sbin/config/mkmakefile.c

537 lines
12 KiB
C

/* $OpenBSD: mkmakefile.c,v 1.48 2021/11/28 19:26:03 deraadt 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) == EOF)
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) == EOF) {
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) {
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) == EOF)
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) == EOF)
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) == EOF)
return (1);
if (fprintf(fp, "\tcd %s && config ", startdir) < 0)
return (1);
if (pflag) {
if (fputs("-p ", fp) == EOF)
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) == EOF)
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) == EOF)
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) == EOF)
return (1);
sp = '\t';
lpos = 7;
}
if (fprintf(fp, "%c$S/%s", sp, oi->oi_path) < 0)
return (1);
lpos += len + 1;
sp = ' ';
}
if (putc('\n', fp) == EOF)
return (1);
return (0);
}
static int
emitcfiles(FILE *fp)
{
return (emitfiles(fp, 'c'));
}
static int
emitsfiles(FILE *fp)
{
return (emitfiles(fp, 's'));
}
static int
emitfiles(FILE *fp, int suffix)
{
struct files *fi;
int lpos, len, sp;
const char *fpath;
char uppersuffix = toupper((unsigned char)suffix);
if (fprintf(fp, "%cFILES=", uppersuffix) < 0)
return (1);
sp = '\t';
lpos = 7;
for (fi = allfiles; fi != NULL; fi = fi->fi_next) {
if ((fi->fi_flags & FI_SEL) == 0)
continue;
if ((fpath = srcpath(fi)) == NULL)
return (1);
len = strlen(fpath);
if (fpath[len - 1] != suffix && fpath[len - 1] != uppersuffix)
continue;
if (*fpath != '/')
len += 3; /* "$S/" */
if (lpos + len > 72) {
if (fputs(" \\\n", fp) == EOF)
return (1);
sp = '\t';
lpos = 7;
}
if (fprintf(fp, "%c%s%s", sp, *fpath != '/' ? "$S/" : "",
fpath) < 0)
return (1);
lpos += len + 1;
sp = ' ';
}
if (putc('\n', fp) == EOF)
return (1);
return (0);
}
/*
* Emit the make-rules.
*/
static int
emit_1rule(FILE *fp, struct files *fi, const char *fpath, const char *suffix)
{
if (fprintf(fp, "%s%s: %s%s\n", fi->fi_base, suffix,
*fpath != '/' ? "$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) == EOF)
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) == EOF)
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: ${SYSTEM_DEP} swap%s.o", nm, swname) < 0)
return (1);
if (first) {
if (fputs(" vers.o", fp) == EOF)
return (1);
first = 0;
}
if (fprintf(fp, "\n"
"\t${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) == EOF)
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"
"\trm -f %s.gdb\n"
"\tmv -f new%s %s\n\n",
swname, nm, 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);
}