NetBSD/usr.sbin/config/mkmakefile.c

516 lines
12 KiB
C

/* $NetBSD: mkmakefile.c,v 1.57 2002/11/19 04:24:16 atatat 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. 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.
*
* from: @(#)mkmakefile.c 8.1 (Berkeley) 6/6/93
*/
#include <sys/param.h>
#include <ctype.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "defs.h"
#include "sem.h"
/*
* Make the Makefile.
*/
static const char *srcpath(struct files *);
static const char *prefix_prologue(const char *);
static int emitdefs(FILE *);
static int emitfiles(FILE *, int, int);
static int emitobjs(FILE *);
static int emitcfiles(FILE *);
static int emitsfiles(FILE *);
static int emitrules(FILE *);
static int emitload(FILE *);
static int emitincludes(FILE *);
int
mkmakefile(void)
{
FILE *ifp, *ofp;
int lineno;
int (*fn)(FILE *);
char *ifname;
char line[BUFSIZ], buf[200];
/* Try a makefile for the port first.
*/
(void)sprintf(buf, "arch/%s/conf/Makefile.%s", machine, machine);
ifname = sourcepath(buf);
if ((ifp = fopen(ifname, "r")) == NULL) {
/* Try a makefile for the architecture second.
*/
(void)sprintf(buf, "arch/%s/conf/Makefile.%s", machinearch,
machinearch);
ifname = sourcepath(buf);
}
if ((ifp = fopen(ifname, "r")) == NULL) {
(void)fprintf(stderr, "config: cannot read %s: %s\n",
ifname, strerror(errno));
free(ifname);
return (1);
}
if ((ofp = fopen("Makefile.tmp", "w")) == NULL) {
(void)fprintf(stderr, "config: cannot write Makefile: %s\n",
strerror(errno));
free(ifname);
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 if (strcmp(line, "%INCLUDES\n") == 0)
fn = emitincludes;
else {
xerror(ifname, lineno,
"unknown %% construct ignored: %s", line);
continue;
}
if ((*fn)(ofp))
goto wrerror;
}
if (ferror(ifp)) {
(void)fprintf(stderr,
"config: error reading %s (at line %d): %s\n",
ifname, lineno, strerror(errno));
goto bad;
/* (void)unlink("Makefile.tmp"); */
free(ifname);
return (1);
}
if (fclose(ofp)) {
ofp = NULL;
goto wrerror;
}
(void)fclose(ifp);
if (moveifchanged("Makefile.tmp", "Makefile") != 0) {
(void)fprintf(stderr,
"config: error renaming Makefile: %s\n",
strerror(errno));
goto bad;
}
free(ifname);
return (0);
wrerror:
(void)fprintf(stderr, "config: error writing Makefile: %s\n",
strerror(errno));
bad:
if (ofp != NULL)
(void)fclose(ofp);
/* (void)unlink("Makefile.tmp"); */
free(ifname);
return (1);
}
/*
* 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)
{
#if 1
/* Always have source, don't support object dirs for kernel builds. */
return (fi->fi_path);
#else
static char buf[MAXPATHLEN];
if (have_source || (fi->fi_flags & FI_ALWAYSSRC) != 0)
return (fi->fi_path);
if (objpath == NULL) {
error("obj-directory not set");
return (NULL);
}
(void)snprintf(buf, sizeof buf, "%s/%s.o", objpath, fi->fi_base);
return (buf);
#endif
}
static const char *
prefix_prologue(const char *path)
{
if (*path == '/')
return ("");
else
return ("$S/");
}
static int
emitdefs(FILE *fp)
{
struct nvlist *nv;
char *sp;
if (fprintf(fp, "KERNEL_BUILD=%s\n", conffile) < 0)
return (1);
if (fputs("IDENT=", fp) < 0)
return (1);
sp = "";
for (nv = options; nv != NULL; nv = nv->nv_next) {
/* skip any options output to a header file */
if (DEFINED_OPTION(nv->nv_name))
continue;
if (fprintf(fp, "%s-D%s", sp, nv->nv_name) < 0)
return 1;
if (nv->nv_str)
if (fprintf(fp, "=\"%s\"", nv->nv_str) < 0)
return 1;
sp = " ";
}
if (putc('\n', fp) < 0)
return (1);
if (fprintf(fp, "PARAM=-DMAXUSERS=%d\n", maxusers) < 0)
return (1);
if (fprintf(fp, "MACHINE=%s\n", machine) < 0)
return (1);
if (*srcdir == '/' || *srcdir == '.') {
if (fprintf(fp, "S=\t%s\n", srcdir) < 0)
return (1);
} else {
/*
* libkern and libcompat "Makefile.inc"s want relative S
* specification to begin with '.'.
*/
if (fprintf(fp, "S=\t./%s\n", srcdir) < 0)
return (1);
}
for (nv = mkoptions; nv != NULL; nv = nv->nv_next)
if (fprintf(fp, "%s=%s\n", nv->nv_name, nv->nv_str) < 0)
return (1);
return (0);
}
static int
emitobjs(FILE *fp)
{
struct files *fi;
struct objects *oi;
int lpos, len, sp;
if (fputs("OBJS=", fp) < 0)
return (1);
sp = '\t';
lpos = 7;
TAILQ_FOREACH(fi, &allfiles, fi_next) {
if ((fi->fi_flags & FI_SEL) == 0)
continue;
len = strlen(fi->fi_base) + 2;
if (lpos + len > 72) {
if (fputs(" \\\n", fp) < 0)
return (1);
sp = '\t';
lpos = 7;
}
if (fprintf(fp, "%c%s.o", sp, fi->fi_base) < 0)
return (1);
lpos += len + 1;
sp = ' ';
}
TAILQ_FOREACH(oi, &allobjects, oi_next) {
if ((oi->oi_flags & OI_SEL) == 0)
continue;
len = strlen(oi->oi_path);
if (*oi->oi_path != '/') {
len += 3; /* "$S/" */
if (oi->oi_prefix != NULL)
len += strlen(oi->oi_prefix) + 1;
}
if (lpos + len > 72) {
if (fputs(" \\\n", fp) < 0)
return (1);
sp = '\t';
lpos = 7;
}
if (*oi->oi_path == '/') {
if (fprintf(fp, "%c%s", sp, oi->oi_path) < 0)
return (1);
} else {
if (oi->oi_prefix != NULL) {
if (fprintf(fp, "%c%s%s/%s", sp,
prefix_prologue(oi->oi_prefix),
oi->oi_prefix, oi->oi_path) < 0)
return (1);
} else {
if (fprintf(fp, "%c$S/%s", sp, oi->oi_path) < 0)
return (1);
}
}
lpos += len + 1;
sp = ' ';
}
if (putc('\n', fp) < 0)
return (1);
return (0);
}
static int
emitcfiles(FILE *fp)
{
return (emitfiles(fp, 'c', 0));
}
static int
emitsfiles(FILE *fp)
{
return (emitfiles(fp, 's', 1));
}
static int
emitfiles(FILE *fp, int suffix, int upper_suffix)
{
struct files *fi;
struct config *cf;
int lpos, len, sp;
const char *fpath;
char swapname[100];
if (fprintf(fp, "%cFILES=", toupper(suffix)) < 0)
return (1);
sp = '\t';
lpos = 7;
TAILQ_FOREACH(fi, &allfiles, fi_next) {
if ((fi->fi_flags & FI_SEL) == 0)
continue;
if ((fpath = srcpath(fi)) == NULL)
return (1);
len = strlen(fpath);
if (! ((fpath[len - 1] == suffix) ||
(upper_suffix && fpath[len - 1] == toupper(suffix))))
continue;
if (*fpath != '/') {
len += 3; /* "$S/" */
if (fi->fi_prefix != NULL)
len += strlen(fi->fi_prefix) + 1;
}
if (lpos + len > 72) {
if (fputs(" \\\n", fp) < 0)
return (1);
sp = '\t';
lpos = 7;
}
if (*fi->fi_path == '/') {
if (fprintf(fp, "%c%s", sp, fi->fi_path) < 0)
return (1);
} else {
if (fi->fi_prefix != NULL) {
if (fprintf(fp, "%c%s%s/%s", sp,
prefix_prologue(fi->fi_prefix),
fi->fi_prefix, fi->fi_path) < 0)
return (1);
} else {
if (fprintf(fp, "%c$S/%s", sp, fi->fi_path) < 0)
return (1);
}
}
lpos += len + 1;
sp = ' ';
}
/*
* The allfiles list does not include the configuration-specific
* C source files. These files should be eliminated someday, but
* for now, we have to add them to ${CFILES} (and only ${CFILES}).
*/
if (suffix == 'c') {
TAILQ_FOREACH(cf, &allcf, cf_next) {
(void)sprintf(swapname, "swap%s.c", cf->cf_name);
len = strlen(swapname);
if (lpos + len > 72) {
if (fputs(" \\\n", fp) < 0)
return (1);
sp = '\t';
lpos = 7;
}
if (fprintf(fp, "%c%s", sp, swapname) < 0)
return (1);
lpos += len + 1;
sp = ' ';
}
}
if (putc('\n', fp) < 0)
return (1);
return (0);
}
/*
* Emit the make-rules.
*/
static int
emitrules(FILE *fp)
{
struct files *fi;
const char *cp, *fpath;
int ch;
char buf[200];
TAILQ_FOREACH(fi, &allfiles, fi_next) {
if ((fi->fi_flags & FI_SEL) == 0)
continue;
if ((fpath = srcpath(fi)) == NULL)
return (1);
if (*fpath == '/') {
if (fprintf(fp, "%s.o: %s\n", fi->fi_base, fpath) < 0)
return (1);
} else {
if (fi->fi_prefix != NULL) {
if (fprintf(fp, "%s.o: %s%s/%s\n", fi->fi_base,
prefix_prologue(fi->fi_prefix),
fi->fi_prefix, fpath) < 0)
return (1);
} else {
if (fprintf(fp, "%s.o: $S/%s\n", fi->fi_base,
fpath) < 0)
return (1);
}
}
if ((cp = fi->fi_mkrule) == NULL) {
cp = "NORMAL";
ch = fpath[strlen(fpath) - 1];
if (islower(ch))
ch = toupper(ch);
(void)sprintf(buf, "${%s_%c}", cp, ch);
cp = buf;
}
if (fprintf(fp, "\t%s\n\n", cp) < 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;
if (fputs(".MAIN: all\nall:", fp) < 0)
return (1);
TAILQ_FOREACH(cf, &allcf, cf_next) {
if (fprintf(fp, " %s", cf->cf_name) < 0)
return (1);
}
if (fputs("\n\n", fp) < 0)
return (1);
TAILQ_FOREACH(cf, &allcf, cf_next) {
nm = cf->cf_name;
swname =
cf->cf_root != NULL ? cf->cf_name : "generic";
if (fprintf(fp, "KERNELS+=%s\n", nm) < 0)
return (1);
if (fprintf(fp, "SWAP_OBJ%s=swap%s.o\n", nm, swname) < 0)
return (1);
if (fprintf(fp, "%s: ${SYSTEM_DEP} swap%s.o vers.o", nm,
swname) < 0)
return (1);
if (fprintf(fp, "\n\
\t${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, "$S/arch/%s/%s/swapgeneric.c\n",
machine, machine) < 0)
return (1);
}
if (fputs("\t${NORMAL_C}\n\n", fp) < 0)
return (1);
}
return (0);
}
/*
* Emit include headers (for any prefixes encountered)
*/
static int
emitincludes(FILE *fp)
{
struct prefix *pf;
SLIST_FOREACH(pf, &allprefixes, pf_next) {
if (fprintf(fp, "EXTRA_INCLUDES+=\t-I%s%s\n",
prefix_prologue(pf->pf_prefix), pf->pf_prefix) < 0)
return (1);
}
return (0);
}