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freebsd-skq/usr.sbin/config/mkmakefile.c
bdrewery 49f4465004 config: Add no-ctfconvert support. 
Bump CONFIGVERS to 600018 for this support.

Some files may purposely have debug info disabled or are *source files*
that attempt to run ctfconvert on them. Currently ctfconvert ignores
these errors but I have a change to make the errors real so we can
catch real problems like exceeding type limits.

Sponsored by:		Dell EMC
Reviewed by:		imp, cem, kevans
Differential Revision:	https://reviews.freebsd.org/D24535
2020-04-28 16:09:22 +00:00

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/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* 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 <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <sys/cnv.h>
#include <sys/nv.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 void read_files(void);
static void sanitize_envline(char *result, const char *src);
static bool preprocess(char *line, char *result);
static void process_into_file(char *line, FILE *ofp);
static void process_into_nvlist(char *line, nvlist_t *nvl);
static void dump_nvlist(nvlist_t *nvl, FILE *ofp);
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"));
}
static void
sanitize_envline(char *result, const char *src)
{
const char *eq;
char c, *dst;
bool leading;
/* If there is no '=' it's not a well-formed name=value line. */
if ((eq = strchr(src, '=')) == NULL) {
*result = 0;
return;
}
dst = result;
/* Copy chars before the '=', skipping any leading spaces/quotes. */
leading = true;
while (src < eq) {
c = *src++;
if (leading && (isspace(c) || c == '"'))
continue;
*dst++ = c;
leading = false;
}
/* If it was all leading space, we don't have a well-formed line. */
if (leading) {
*result = 0;
return;
}
/* Trim spaces/quotes immediately before the '=', then copy the '='. */
while (isspace(dst[-1]) || dst[-1] == '"')
--dst;
*dst++ = *src++;
/* Copy chars after the '=', skipping any leading whitespace. */
leading = true;
while ((c = *src++) != 0) {
if (leading && (isspace(c) || c == '"'))
continue;
*dst++ = c;
leading = false;
}
/* If it was all leading space, it's a valid 'var=' (nil value). */
if (leading) {
*dst = 0;
return;
}
/* Trim trailing whitespace and quotes. */
while (isspace(dst[-1]) || dst[-1] == '"')
--dst;
*dst = 0;
}
/*
* Returns true if the caller may use the string.
*/
static bool
preprocess(char *line, char *result)
{
char *s;
/* Strip any comments */
if ((s = strchr(line, '#')) != NULL)
*s = '\0';
sanitize_envline(result, line);
/* Return true if it's non-empty */
return (*result != '\0');
}
static void
process_into_file(char *line, FILE *ofp)
{
char result[BUFSIZ];
if (preprocess(line, result))
fprintf(ofp, "\"%s\\0\"\n", result);
}
static void
process_into_nvlist(char *line, nvlist_t *nvl)
{
char result[BUFSIZ], *s;
if (preprocess(line, result)) {
s = strchr(result, '=');
*s = '\0';
if (nvlist_exists(nvl, result))
nvlist_free(nvl, result);
nvlist_add_string(nvl, result, s + 1);
}
}
static void
dump_nvlist(nvlist_t *nvl, FILE *ofp)
{
const char *name;
void *cookie;
if (nvl == NULL)
return;
while (!nvlist_empty(nvl)) {
cookie = NULL;
name = nvlist_next(nvl, NULL, &cookie);
fprintf(ofp, "\"%s=%s\\0\"\n", name,
cnvlist_get_string(cookie));
cnvlist_free_string(cookie);
}
}
/*
* Build hints.c from the skeleton
*/
void
makehints(void)
{
FILE *ifp, *ofp;
nvlist_t *nvl;
char line[BUFSIZ];
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");
/*
* Write out hintmode for older kernels. Remove when config(8) major
* version rolls over.
*/
if (versreq <= CONFIGVERS_ENVMODE_REQ)
fprintf(ofp, "int hintmode = %d;\n",
!STAILQ_EMPTY(&hints) ? 1 : 0);
fprintf(ofp, "char static_hints[] = {\n");
nvl = nvlist_create(0);
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)
process_into_nvlist(line, nvl);
dump_nvlist(nvl, ofp);
fclose(ifp);
}
nvlist_destroy(nvl);
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;
nvlist_t *nvl;
char line[BUFSIZ];
struct envvar *envvar;
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");
/*
* Write out envmode for older kernels. Remove when config(8) major
* version rolls over.
*/
if (versreq <= CONFIGVERS_ENVMODE_REQ)
fprintf(ofp, "int envmode = %d;\n",
!STAILQ_EMPTY(&envvars) ? 1 : 0);
fprintf(ofp, "char static_env[] = {\n");
nvl = nvlist_create(0);
STAILQ_FOREACH(envvar, &envvars, envvar_next) {
if (envvar->env_is_file) {
ifp = fopen(envvar->env_str, "r");
if (ifp == NULL)
err(1, "%s", envvar->env_str);
while (fgets(line, BUFSIZ, ifp) != NULL)
process_into_nvlist(line, nvl);
dump_nvlist(nvl, ofp);
fclose(ifp);
} else
process_into_file(envvar->env_str, ofp);
}
nvlist_destroy(nvl);
fprintf(ofp, "\"\\0\"\n};\n");
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_ctfconvert, 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"]
* [ nowerror ] [ local ]
*/
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_ctfconvert = 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-ctfconvert")) {
no_ctfconvert++;
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 &&
strcasecmp(op->op_name, wd) == 0) {
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 (filetype == LOCAL)
tp->f_srcprefix = "";
else
tp->f_srcprefix = "$S/";
if (imp_rule)
tp->f_flags |= NO_IMPLCT_RULE;
if (no_ctfconvert)
tp->f_flags |= NO_CTFCONVERT;
if (no_obj)
tp->f_flags |= NO_OBJ | NO_CTFCONVERT;
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 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) + strlen(tp->f_srcprefix);
if (len + lpos > 72) {
lpos = 8;
fputs("\\\n\t", fp);
}
if (tp->f_flags & NO_IMPLCT_RULE)
lpos += fprintf(fp, "%s ", tp->f_fn);
else
lpos += fprintf(fp, "%s%s ", tp->f_srcprefix,
tp->f_fn);
}
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 + strlen(tp->f_srcprefix) + lpos > 72) {
lpos = 8;
fputs("\\\n\t", fp);
}
lpos += fprintf(fp, "%s%s ", tp->f_srcprefix, tp->f_fn);
}
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),
ftp->f_srcprefix, np);
continue;
}
if (ftp->f_depends) {
fprintf(f, "%s%so: %s%s%c %s\n",
ftp->f_objprefix, tail(np),
ftp->f_srcprefix, np, och,
ftp->f_depends);
}
else {
fprintf(f, "%s%so: %s%s%c\n",
ftp->f_objprefix, tail(np),
ftp->f_srcprefix, 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,
ftp->f_srcprefix, np);
else
fprintf(f, "\t%s\n", compilewith);
if (!(ftp->f_flags & NO_CTFCONVERT))
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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