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freebsd-nq/usr.sbin/config/mkmakefile.c
Warner Losh fbbd9655e5 Renumber copyright clause 4 
Renumber cluase 4 to 3, per what everybody else did when BSD granted
them permission to remove clause 3. My insistance on keeping the same
numbering for legal reasons is too pedantic, so give up on that point.

Submitted by:	Jan Schaumann <jschauma@stevens.edu>
Pull Request:	https://github.com/freebsd/freebsd/pull/96
2017-02-28 23:42:47 +00:00

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/*
* Copyright (c) 1980, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* 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.
*/
#ifndef lint
#if 0
static char sccsid[] = "@(#)mkmakefile.c 8.1 (Berkeley) 6/6/93";
#endif
static const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
/*
* Build the makefile for the system, from
* the information in the files files and the
* additional files for the machine being compiled to.
*/
#include <ctype.h>
#include <err.h>
#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <sys/param.h>
#include "y.tab.h"
#include "config.h"
#include "configvers.h"
static char *tail(char *);
static void do_clean(FILE *);
static void do_rules(FILE *);
static void do_xxfiles(char *, FILE *);
static void do_objs(FILE *);
static void do_before_depend(FILE *);
static int opteq(const char *, const char *);
static void read_files(void);
static void errout(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
vfprintf(stderr, fmt, ap);
va_end(ap);
exit(1);
}
/*
* Lookup a file, by name.
*/
static struct file_list *
fl_lookup(char *file)
{
struct file_list *fp;
STAILQ_FOREACH(fp, &ftab, f_next) {
if (eq(fp->f_fn, file))
return (fp);
}
return (0);
}
/*
* Make a new file list entry
*/
static struct file_list *
new_fent(void)
{
struct file_list *fp;
fp = (struct file_list *) calloc(1, sizeof *fp);
if (fp == NULL)
err(EXIT_FAILURE, "calloc");
STAILQ_INSERT_TAIL(&ftab, fp, f_next);
return (fp);
}
/*
* Open the correct Makefile and return it, or error out.
*/
FILE *
open_makefile_template(void)
{
FILE *ifp;
char line[BUFSIZ];
snprintf(line, sizeof(line), "../../conf/Makefile.%s", machinename);
ifp = fopen(line, "r");
if (ifp == NULL) {
snprintf(line, sizeof(line), "Makefile.%s", machinename);
ifp = fopen(line, "r");
}
if (ifp == NULL)
err(1, "%s", line);
return (ifp);
}
/*
* Build the makefile from the skeleton
*/
void
makefile(void)
{
FILE *ifp, *ofp;
char line[BUFSIZ];
struct opt *op, *t;
read_files();
ifp = open_makefile_template();
ofp = fopen(path("Makefile.new"), "w");
if (ofp == NULL)
err(1, "%s", path("Makefile.new"));
fprintf(ofp, "KERN_IDENT=%s\n", ident);
fprintf(ofp, "MACHINE=%s\n", machinename);
fprintf(ofp, "MACHINE_ARCH=%s\n", machinearch);
SLIST_FOREACH_SAFE(op, &mkopt, op_next, t) {
fprintf(ofp, "%s=%s", op->op_name, op->op_value);
while ((op = SLIST_NEXT(op, op_append)) != NULL)
fprintf(ofp, " %s", op->op_value);
fprintf(ofp, "\n");
}
if (debugging)
fprintf(ofp, "DEBUG=-g\n");
if (profiling)
fprintf(ofp, "PROFLEVEL=%d\n", profiling);
if (*srcdir != '\0')
fprintf(ofp,"S=%s\n", srcdir);
while (fgets(line, BUFSIZ, ifp) != NULL) {
if (*line != '%') {
fprintf(ofp, "%s", line);
continue;
}
if (eq(line, "%BEFORE_DEPEND\n"))
do_before_depend(ofp);
else if (eq(line, "%OBJS\n"))
do_objs(ofp);
else if (strncmp(line, "%FILES.", 7) == 0)
do_xxfiles(line, ofp);
else if (eq(line, "%RULES\n"))
do_rules(ofp);
else if (eq(line, "%CLEAN\n"))
do_clean(ofp);
else if (strncmp(line, "%VERSREQ=", 9) == 0)
line[0] = '\0'; /* handled elsewhere */
else
fprintf(stderr,
"Unknown %% construct in generic makefile: %s",
line);
}
(void) fclose(ifp);
(void) fclose(ofp);
moveifchanged(path("Makefile.new"), path("Makefile"));
}
/*
* Build hints.c from the skeleton
*/
void
makehints(void)
{
FILE *ifp, *ofp;
char line[BUFSIZ];
char *s;
struct hint *hint;
ofp = fopen(path("hints.c.new"), "w");
if (ofp == NULL)
err(1, "%s", path("hints.c.new"));
fprintf(ofp, "#include <sys/types.h>\n");
fprintf(ofp, "#include <sys/systm.h>\n");
fprintf(ofp, "\n");
fprintf(ofp, "int hintmode = %d;\n", hintmode);
fprintf(ofp, "char static_hints[] = {\n");
STAILQ_FOREACH(hint, &hints, hint_next) {
ifp = fopen(hint->hint_name, "r");
if (ifp == NULL)
err(1, "%s", hint->hint_name);
while (fgets(line, BUFSIZ, ifp) != NULL) {
/* zap trailing CR and/or LF */
while ((s = strrchr(line, '\n')) != NULL)
*s = '\0';
while ((s = strrchr(line, '\r')) != NULL)
*s = '\0';
/* remove # comments */
s = strchr(line, '#');
if (s)
*s = '\0';
/* remove any whitespace and " characters */
s = line;
while (*s) {
if (*s == ' ' || *s == '\t' || *s == '"') {
while (*s) {
s[0] = s[1];
s++;
}
/* start over */
s = line;
continue;
}
s++;
}
/* anything left? */
if (*line == '\0')
continue;
fprintf(ofp, "\"%s\\0\"\n", line);
}
fclose(ifp);
}
fprintf(ofp, "\"\\0\"\n};\n");
fclose(ofp);
moveifchanged(path("hints.c.new"), path("hints.c"));
}
/*
* Build env.c from the skeleton
*/
void
makeenv(void)
{
FILE *ifp, *ofp;
char line[BUFSIZ];
char *s;
if (env) {
ifp = fopen(env, "r");
if (ifp == NULL)
err(1, "%s", env);
} else {
ifp = NULL;
}
ofp = fopen(path("env.c.new"), "w");
if (ofp == NULL)
err(1, "%s", path("env.c.new"));
fprintf(ofp, "#include <sys/types.h>\n");
fprintf(ofp, "#include <sys/systm.h>\n");
fprintf(ofp, "\n");
fprintf(ofp, "int envmode = %d;\n", envmode);
fprintf(ofp, "char static_env[] = {\n");
if (ifp) {
while (fgets(line, BUFSIZ, ifp) != NULL) {
/* zap trailing CR and/or LF */
while ((s = strrchr(line, '\n')) != NULL)
*s = '\0';
while ((s = strrchr(line, '\r')) != NULL)
*s = '\0';
/* remove # comments */
s = strchr(line, '#');
if (s)
*s = '\0';
/* remove any whitespace and " characters */
s = line;
while (*s) {
if (*s == ' ' || *s == '\t' || *s == '"') {
while (*s) {
s[0] = s[1];
s++;
}
/* start over */
s = line;
continue;
}
s++;
}
/* anything left? */
if (*line == '\0')
continue;
fprintf(ofp, "\"%s\\0\"\n", line);
}
}
fprintf(ofp, "\"\\0\"\n};\n");
if (ifp)
fclose(ifp);
fclose(ofp);
moveifchanged(path("env.c.new"), path("env.c"));
}
static void
read_file(char *fname)
{
char ifname[MAXPATHLEN];
FILE *fp;
struct file_list *tp;
struct device *dp;
struct opt *op;
char *wd, *this, *compilewith, *depends, *clean, *warning;
const char *objprefix;
int compile, match, nreqs, std, filetype, not,
imp_rule, no_obj, before_depend, nowerror;
fp = fopen(fname, "r");
if (fp == NULL)
err(1, "%s", fname);
next:
/*
* include "filename"
* filename [ standard | optional ]
* [ dev* [ | dev* ... ] | profiling-routine ] [ no-obj ]
* [ compile-with "compile rule" [no-implicit-rule] ]
* [ dependency "dependency-list"] [ before-depend ]
* [ clean "file-list"] [ warning "text warning" ]
* [ obj-prefix "file prefix"]
*/
wd = get_word(fp);
if (wd == (char *)EOF) {
(void) fclose(fp);
return;
}
if (wd == NULL)
goto next;
if (wd[0] == '#')
{
while (((wd = get_word(fp)) != (char *)EOF) && wd)
;
goto next;
}
if (eq(wd, "include")) {
wd = get_quoted_word(fp);
if (wd == (char *)EOF || wd == NULL)
errout("%s: missing include filename.\n", fname);
(void) snprintf(ifname, sizeof(ifname), "../../%s", wd);
read_file(ifname);
while (((wd = get_word(fp)) != (char *)EOF) && wd)
;
goto next;
}
this = ns(wd);
wd = get_word(fp);
if (wd == (char *)EOF)
return;
if (wd == NULL)
errout("%s: No type for %s.\n", fname, this);
tp = fl_lookup(this);
compile = 0;
match = 1;
nreqs = 0;
compilewith = 0;
depends = 0;
clean = 0;
warning = 0;
std = 0;
imp_rule = 0;
no_obj = 0;
before_depend = 0;
nowerror = 0;
not = 0;
filetype = NORMAL;
objprefix = "";
if (eq(wd, "standard"))
std = 1;
else if (!eq(wd, "optional"))
errout("%s: \"%s\" %s must be optional or standard\n",
fname, wd, this);
for (wd = get_word(fp); wd; wd = get_word(fp)) {
if (wd == (char *)EOF)
return;
if (eq(wd, "!")) {
not = 1;
continue;
}
if (eq(wd, "|")) {
if (nreqs == 0)
errout("%s: syntax error describing %s\n",
fname, this);
compile += match;
match = 1;
nreqs = 0;
continue;
}
if (eq(wd, "no-obj")) {
no_obj++;
continue;
}
if (eq(wd, "no-implicit-rule")) {
if (compilewith == NULL)
errout("%s: alternate rule required when "
"\"no-implicit-rule\" is specified for"
" %s.\n",
fname, this);
imp_rule++;
continue;
}
if (eq(wd, "before-depend")) {
before_depend++;
continue;
}
if (eq(wd, "dependency")) {
wd = get_quoted_word(fp);
if (wd == (char *)EOF || wd == NULL)
errout("%s: %s missing dependency string.\n",
fname, this);
depends = ns(wd);
continue;
}
if (eq(wd, "clean")) {
wd = get_quoted_word(fp);
if (wd == (char *)EOF || wd == NULL)
errout("%s: %s missing clean file list.\n",
fname, this);
clean = ns(wd);
continue;
}
if (eq(wd, "compile-with")) {
wd = get_quoted_word(fp);
if (wd == (char *)EOF || wd == NULL)
errout("%s: %s missing compile command string.\n",
fname, this);
compilewith = ns(wd);
continue;
}
if (eq(wd, "warning")) {
wd = get_quoted_word(fp);
if (wd == (char *)EOF || wd == NULL)
errout("%s: %s missing warning text string.\n",
fname, this);
warning = ns(wd);
continue;
}
if (eq(wd, "obj-prefix")) {
wd = get_quoted_word(fp);
if (wd == (char *)EOF || wd == NULL)
errout("%s: %s missing object prefix string.\n",
fname, this);
objprefix = ns(wd);
continue;
}
if (eq(wd, "nowerror")) {
nowerror = 1;
continue;
}
if (eq(wd, "local")) {
filetype = LOCAL;
continue;
}
if (eq(wd, "no-depend")) {
filetype = NODEPEND;
continue;
}
nreqs++;
if (eq(wd, "profiling-routine")) {
filetype = PROFILING;
continue;
}
if (std)
errout("standard entry %s has optional inclusion specifier %s!\n",
this, wd);
STAILQ_FOREACH(dp, &dtab, d_next)
if (eq(dp->d_name, wd)) {
if (not)
match = 0;
else
dp->d_done |= DEVDONE;
goto nextparam;
}
SLIST_FOREACH(op, &opt, op_next)
if (op->op_value == 0 && opteq(op->op_name, wd)) {
if (not)
match = 0;
goto nextparam;
}
match &= not;
nextparam:;
not = 0;
}
compile += match;
if (compile && tp == NULL) {
if (std == 0 && nreqs == 0)
errout("%s: what is %s optional on?\n",
fname, this);
if (filetype == PROFILING && profiling == 0)
goto next;
tp = new_fent();
tp->f_fn = this;
tp->f_type = filetype;
if (imp_rule)
tp->f_flags |= NO_IMPLCT_RULE;
if (no_obj)
tp->f_flags |= NO_OBJ;
if (before_depend)
tp->f_flags |= BEFORE_DEPEND;
if (nowerror)
tp->f_flags |= NOWERROR;
tp->f_compilewith = compilewith;
tp->f_depends = depends;
tp->f_clean = clean;
tp->f_warn = warning;
tp->f_objprefix = objprefix;
}
goto next;
}
/*
* Read in the information about files used in making the system.
* Store it in the ftab linked list.
*/
static void
read_files(void)
{
char fname[MAXPATHLEN];
struct files_name *nl, *tnl;
(void) snprintf(fname, sizeof(fname), "../../conf/files");
read_file(fname);
(void) snprintf(fname, sizeof(fname),
"../../conf/files.%s", machinename);
read_file(fname);
for (nl = STAILQ_FIRST(&fntab); nl != NULL; nl = tnl) {
read_file(nl->f_name);
tnl = STAILQ_NEXT(nl, f_next);
free(nl->f_name);
free(nl);
}
}
static int
opteq(const char *cp, const char *dp)
{
char c, d;
for (; ; cp++, dp++) {
if (*cp != *dp) {
c = isupper(*cp) ? tolower(*cp) : *cp;
d = isupper(*dp) ? tolower(*dp) : *dp;
if (c != d)
return (0);
}
if (*cp == 0)
return (1);
}
}
static void
do_before_depend(FILE *fp)
{
struct file_list *tp;
int lpos, len;
fputs("BEFORE_DEPEND=", fp);
lpos = 15;
STAILQ_FOREACH(tp, &ftab, f_next)
if (tp->f_flags & BEFORE_DEPEND) {
len = strlen(tp->f_fn);
if ((len = 3 + len) + lpos > 72) {
lpos = 8;
fputs("\\\n\t", fp);
}
if (tp->f_flags & NO_IMPLCT_RULE)
fprintf(fp, "%s ", tp->f_fn);
else
fprintf(fp, "$S/%s ", tp->f_fn);
lpos += len + 1;
}
if (lpos != 8)
putc('\n', fp);
}
static void
do_objs(FILE *fp)
{
struct file_list *tp;
int lpos, len;
char *cp, och, *sp;
fprintf(fp, "OBJS=");
lpos = 6;
STAILQ_FOREACH(tp, &ftab, f_next) {
if (tp->f_flags & NO_OBJ)
continue;
sp = tail(tp->f_fn);
cp = sp + (len = strlen(sp)) - 1;
och = *cp;
*cp = 'o';
len += strlen(tp->f_objprefix);
if (len + lpos > 72) {
lpos = 8;
fprintf(fp, "\\\n\t");
}
fprintf(fp, "%s%s ", tp->f_objprefix, sp);
lpos += len + 1;
*cp = och;
}
if (lpos != 8)
putc('\n', fp);
}
static void
do_xxfiles(char *tag, FILE *fp)
{
struct file_list *tp;
int lpos, len, slen;
char *suff, *SUFF;
if (tag[strlen(tag) - 1] == '\n')
tag[strlen(tag) - 1] = '\0';
suff = ns(tag + 7);
SUFF = ns(suff);
raisestr(SUFF);
slen = strlen(suff);
fprintf(fp, "%sFILES=", SUFF);
free(SUFF);
lpos = 8;
STAILQ_FOREACH(tp, &ftab, f_next)
if (tp->f_type != NODEPEND) {
len = strlen(tp->f_fn);
if (tp->f_fn[len - slen - 1] != '.')
continue;
if (strcasecmp(&tp->f_fn[len - slen], suff) != 0)
continue;
if ((len = 3 + len) + lpos > 72) {
lpos = 8;
fputs("\\\n\t", fp);
}
if (tp->f_type != LOCAL)
fprintf(fp, "$S/%s ", tp->f_fn);
else
fprintf(fp, "%s ", tp->f_fn);
lpos += len + 1;
}
free(suff);
if (lpos != 8)
putc('\n', fp);
}
static char *
tail(char *fn)
{
char *cp;
cp = strrchr(fn, '/');
if (cp == NULL)
return (fn);
return (cp+1);
}
/*
* Create the makerules for each file
* which is part of the system.
*/
static void
do_rules(FILE *f)
{
char *cp, *np, och;
struct file_list *ftp;
char *compilewith;
char cmd[128];
STAILQ_FOREACH(ftp, &ftab, f_next) {
if (ftp->f_warn)
fprintf(stderr, "WARNING: %s\n", ftp->f_warn);
cp = (np = ftp->f_fn) + strlen(ftp->f_fn) - 1;
och = *cp;
if (ftp->f_flags & NO_IMPLCT_RULE) {
if (ftp->f_depends)
fprintf(f, "%s%s: %s\n",
ftp->f_objprefix, np, ftp->f_depends);
else
fprintf(f, "%s%s: \n", ftp->f_objprefix, np);
}
else {
*cp = '\0';
if (och == 'o') {
fprintf(f, "%s%so:\n\t-cp $S/%so .\n\n",
ftp->f_objprefix, tail(np), np);
continue;
}
if (ftp->f_depends) {
fprintf(f, "%s%sln: $S/%s%c %s\n",
ftp->f_objprefix, tail(np), np, och,
ftp->f_depends);
fprintf(f, "\t${NORMAL_LINT}\n\n");
fprintf(f, "%s%so: $S/%s%c %s\n",
ftp->f_objprefix, tail(np), np, och,
ftp->f_depends);
}
else {
fprintf(f, "%s%sln: $S/%s%c\n",
ftp->f_objprefix, tail(np), np, och);
fprintf(f, "\t${NORMAL_LINT}\n\n");
fprintf(f, "%s%so: $S/%s%c\n",
ftp->f_objprefix, tail(np), np, och);
}
}
compilewith = ftp->f_compilewith;
if (compilewith == NULL) {
const char *ftype = NULL;
switch (ftp->f_type) {
case NORMAL:
ftype = "NORMAL";
break;
case PROFILING:
if (!profiling)
continue;
ftype = "PROFILE";
break;
default:
fprintf(stderr,
"config: don't know rules for %s\n", np);
break;
}
snprintf(cmd, sizeof(cmd),
"${%s_%c%s}", ftype,
toupper(och),
ftp->f_flags & NOWERROR ? "_NOWERROR" : "");
compilewith = cmd;
}
*cp = och;
if (strlen(ftp->f_objprefix))
fprintf(f, "\t%s $S/%s\n", compilewith, np);
else
fprintf(f, "\t%s\n", compilewith);
if (!(ftp->f_flags & NO_OBJ))
fprintf(f, "\t${NORMAL_CTFCONVERT}\n\n");
else
fprintf(f, "\n");
}
}
static void
do_clean(FILE *fp)
{
struct file_list *tp;
int lpos, len;
fputs("CLEAN=", fp);
lpos = 7;
STAILQ_FOREACH(tp, &ftab, f_next)
if (tp->f_clean) {
len = strlen(tp->f_clean);
if (len + lpos > 72) {
lpos = 8;
fputs("\\\n\t", fp);
}
fprintf(fp, "%s ", tp->f_clean);
lpos += len + 1;
}
if (lpos != 8)
putc('\n', fp);
}
char *
raisestr(char *str)
{
char *cp = str;
while (*str) {
if (islower(*str))
*str = toupper(*str);
str++;
}
return (cp);
}
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