461 lines
9.6 KiB
C
461 lines
9.6 KiB
C
/*
|
|
* Copyright (C) 2002 Roman Zippel <zippel@linux-m68k.org>
|
|
* Released under the terms of the GNU GPL v2.0.
|
|
*/
|
|
|
|
#include <sys/stat.h>
|
|
#include <ctype.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
|
|
#define LKC_DIRECT_LINK
|
|
#include "lkc.h"
|
|
|
|
const char conf_def_filename[] = ".config";
|
|
|
|
const char conf_defname[] = "arch/$ARCH/defconfig";
|
|
|
|
const char *conf_confnames[] = {
|
|
".config",
|
|
"/lib/modules/$UNAME_RELEASE/.config",
|
|
"/etc/kernel-config",
|
|
"/boot/config-$UNAME_RELEASE",
|
|
conf_defname,
|
|
NULL,
|
|
};
|
|
|
|
static char *conf_expand_value(const signed char *in)
|
|
{
|
|
struct symbol *sym;
|
|
const signed char *src;
|
|
static char res_value[SYMBOL_MAXLENGTH];
|
|
char *dst, name[SYMBOL_MAXLENGTH];
|
|
|
|
res_value[0] = 0;
|
|
dst = name;
|
|
while ((src = strchr(in, '$'))) {
|
|
strncat(res_value, in, src - in);
|
|
src++;
|
|
dst = name;
|
|
while (isalnum(*src) || *src == '_')
|
|
*dst++ = *src++;
|
|
*dst = 0;
|
|
sym = sym_lookup(name, 0);
|
|
sym_calc_value(sym);
|
|
strcat(res_value, sym_get_string_value(sym));
|
|
in = src;
|
|
}
|
|
strcat(res_value, in);
|
|
|
|
return res_value;
|
|
}
|
|
|
|
char *conf_get_default_confname(void)
|
|
{
|
|
struct stat buf;
|
|
static char fullname[PATH_MAX+1];
|
|
char *env, *name;
|
|
|
|
name = conf_expand_value(conf_defname);
|
|
env = getenv(SRCTREE);
|
|
if (env) {
|
|
sprintf(fullname, "%s/%s", env, name);
|
|
if (!stat(fullname, &buf))
|
|
return fullname;
|
|
}
|
|
return name;
|
|
}
|
|
|
|
int conf_read(const char *name)
|
|
{
|
|
FILE *in = NULL;
|
|
char line[1024];
|
|
char *p, *p2;
|
|
int lineno = 0;
|
|
struct symbol *sym;
|
|
struct property *prop;
|
|
struct expr *e;
|
|
int i;
|
|
|
|
if (name) {
|
|
in = zconf_fopen(name);
|
|
} else {
|
|
const char **names = conf_confnames;
|
|
while ((name = *names++)) {
|
|
name = conf_expand_value(name);
|
|
in = zconf_fopen(name);
|
|
if (in) {
|
|
printf(_("#\n"
|
|
"# using defaults found in %s\n"
|
|
"#\n"), name);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!in)
|
|
return 1;
|
|
|
|
for_all_symbols(i, sym) {
|
|
sym->flags |= SYMBOL_NEW | SYMBOL_CHANGED;
|
|
sym->flags &= ~SYMBOL_VALID;
|
|
switch (sym->type) {
|
|
case S_INT:
|
|
case S_HEX:
|
|
case S_STRING:
|
|
if (sym->user.val)
|
|
free(sym->user.val);
|
|
default:
|
|
sym->user.val = NULL;
|
|
sym->user.tri = no;
|
|
}
|
|
}
|
|
|
|
while (fgets(line, sizeof(line), in)) {
|
|
lineno++;
|
|
sym = NULL;
|
|
switch (line[0]) {
|
|
case '#':
|
|
if (memcmp(line + 2, "CONFIG_", 7))
|
|
continue;
|
|
p = strchr(line + 9, ' ');
|
|
if (!p)
|
|
continue;
|
|
*p++ = 0;
|
|
if (strncmp(p, "is not set", 10))
|
|
continue;
|
|
sym = sym_find(line + 9);
|
|
if (!sym) {
|
|
fprintf(stderr, "%s:%d: trying to assign nonexistent symbol %s\n", name, lineno, line + 9);
|
|
break;
|
|
}
|
|
switch (sym->type) {
|
|
case S_BOOLEAN:
|
|
case S_TRISTATE:
|
|
sym->user.tri = no;
|
|
sym->flags &= ~SYMBOL_NEW;
|
|
break;
|
|
default:
|
|
;
|
|
}
|
|
break;
|
|
case 'C':
|
|
if (memcmp(line, "CONFIG_", 7))
|
|
continue;
|
|
p = strchr(line + 7, '=');
|
|
if (!p)
|
|
continue;
|
|
*p++ = 0;
|
|
p2 = strchr(p, '\n');
|
|
if (p2)
|
|
*p2 = 0;
|
|
sym = sym_find(line + 7);
|
|
if (!sym) {
|
|
fprintf(stderr, "%s:%d: trying to assign nonexistent symbol %s\n", name, lineno, line + 7);
|
|
break;
|
|
}
|
|
switch (sym->type) {
|
|
case S_TRISTATE:
|
|
if (p[0] == 'm') {
|
|
sym->user.tri = mod;
|
|
sym->flags &= ~SYMBOL_NEW;
|
|
break;
|
|
}
|
|
case S_BOOLEAN:
|
|
if (p[0] == 'y') {
|
|
sym->user.tri = yes;
|
|
sym->flags &= ~SYMBOL_NEW;
|
|
break;
|
|
}
|
|
if (p[0] == 'n') {
|
|
sym->user.tri = no;
|
|
sym->flags &= ~SYMBOL_NEW;
|
|
break;
|
|
}
|
|
break;
|
|
case S_STRING:
|
|
if (*p++ != '"')
|
|
break;
|
|
for (p2 = p; (p2 = strpbrk(p2, "\"\\")); p2++) {
|
|
if (*p2 == '"') {
|
|
*p2 = 0;
|
|
break;
|
|
}
|
|
memmove(p2, p2 + 1, strlen(p2));
|
|
}
|
|
if (!p2) {
|
|
fprintf(stderr, "%s:%d: invalid string found\n", name, lineno);
|
|
exit(1);
|
|
}
|
|
case S_INT:
|
|
case S_HEX:
|
|
if (sym_string_valid(sym, p)) {
|
|
sym->user.val = strdup(p);
|
|
sym->flags &= ~SYMBOL_NEW;
|
|
} else {
|
|
fprintf(stderr, "%s:%d: symbol value '%s' invalid for %s\n", name, lineno, p, sym->name);
|
|
exit(1);
|
|
}
|
|
break;
|
|
default:
|
|
;
|
|
}
|
|
break;
|
|
case '\n':
|
|
break;
|
|
default:
|
|
continue;
|
|
}
|
|
if (sym && sym_is_choice_value(sym)) {
|
|
struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
|
|
switch (sym->user.tri) {
|
|
case no:
|
|
break;
|
|
case mod:
|
|
if (cs->user.tri == yes)
|
|
/* warn? */;
|
|
break;
|
|
case yes:
|
|
if (cs->user.tri != no)
|
|
/* warn? */;
|
|
cs->user.val = sym;
|
|
break;
|
|
}
|
|
cs->user.tri = E_OR(cs->user.tri, sym->user.tri);
|
|
cs->flags &= ~SYMBOL_NEW;
|
|
}
|
|
}
|
|
fclose(in);
|
|
|
|
if (modules_sym)
|
|
sym_calc_value(modules_sym);
|
|
for_all_symbols(i, sym) {
|
|
sym_calc_value(sym);
|
|
if (sym_has_value(sym) && !sym_is_choice_value(sym)) {
|
|
if (sym->visible == no)
|
|
sym->flags |= SYMBOL_NEW;
|
|
switch (sym->type) {
|
|
case S_STRING:
|
|
case S_INT:
|
|
case S_HEX:
|
|
if (!sym_string_within_range(sym, sym->user.val))
|
|
sym->flags |= SYMBOL_NEW;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
if (!sym_is_choice(sym))
|
|
continue;
|
|
prop = sym_get_choice_prop(sym);
|
|
for (e = prop->expr; e; e = e->left.expr)
|
|
if (e->right.sym->visible != no)
|
|
sym->flags |= e->right.sym->flags & SYMBOL_NEW;
|
|
}
|
|
|
|
sym_change_count = 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int conf_write(const char *name)
|
|
{
|
|
FILE *out, *out_h;
|
|
struct symbol *sym;
|
|
struct menu *menu;
|
|
const char *basename;
|
|
char dirname[128], tmpname[128], newname[128];
|
|
int type, l;
|
|
const char *str;
|
|
time_t now;
|
|
int use_timestamp = 1;
|
|
char *env;
|
|
|
|
dirname[0] = 0;
|
|
if (name && name[0]) {
|
|
struct stat st;
|
|
char *slash;
|
|
|
|
if (!stat(name, &st) && S_ISDIR(st.st_mode)) {
|
|
strcpy(dirname, name);
|
|
strcat(dirname, "/");
|
|
basename = conf_def_filename;
|
|
} else if ((slash = strrchr(name, '/'))) {
|
|
int size = slash - name + 1;
|
|
memcpy(dirname, name, size);
|
|
dirname[size] = 0;
|
|
if (slash[1])
|
|
basename = slash + 1;
|
|
else
|
|
basename = conf_def_filename;
|
|
} else
|
|
basename = name;
|
|
} else
|
|
basename = conf_def_filename;
|
|
|
|
sprintf(newname, "%s.tmpconfig.%d", dirname, (int)getpid());
|
|
out = fopen(newname, "w");
|
|
if (!out)
|
|
return 1;
|
|
out_h = NULL;
|
|
if (!name) {
|
|
out_h = fopen(".tmpconfig.h", "w");
|
|
if (!out_h)
|
|
return 1;
|
|
}
|
|
sym = sym_lookup("KERNELRELEASE", 0);
|
|
sym_calc_value(sym);
|
|
time(&now);
|
|
env = getenv("KCONFIG_NOTIMESTAMP");
|
|
if (env && *env)
|
|
use_timestamp = 0;
|
|
|
|
fprintf(out, _("#\n"
|
|
"# Automatically generated make config: don't edit\n"
|
|
"# Linux kernel version: %s\n"
|
|
"%s%s"
|
|
"#\n"),
|
|
sym_get_string_value(sym),
|
|
use_timestamp ? "# " : "",
|
|
use_timestamp ? ctime(&now) : "");
|
|
if (out_h)
|
|
fprintf(out_h, "/*\n"
|
|
" * Automatically generated C config: don't edit\n"
|
|
" * Linux kernel version: %s\n"
|
|
"%s%s"
|
|
" */\n"
|
|
"#define AUTOCONF_INCLUDED\n",
|
|
sym_get_string_value(sym),
|
|
use_timestamp ? " * " : "",
|
|
use_timestamp ? ctime(&now) : "");
|
|
|
|
if (!sym_change_count)
|
|
sym_clear_all_valid();
|
|
|
|
menu = rootmenu.list;
|
|
while (menu) {
|
|
sym = menu->sym;
|
|
if (!sym) {
|
|
if (!menu_is_visible(menu))
|
|
goto next;
|
|
str = menu_get_prompt(menu);
|
|
fprintf(out, "\n"
|
|
"#\n"
|
|
"# %s\n"
|
|
"#\n", str);
|
|
if (out_h)
|
|
fprintf(out_h, "\n"
|
|
"/*\n"
|
|
" * %s\n"
|
|
" */\n", str);
|
|
} else if (!(sym->flags & SYMBOL_CHOICE)) {
|
|
sym_calc_value(sym);
|
|
if (!(sym->flags & SYMBOL_WRITE))
|
|
goto next;
|
|
sym->flags &= ~SYMBOL_WRITE;
|
|
type = sym->type;
|
|
if (type == S_TRISTATE) {
|
|
sym_calc_value(modules_sym);
|
|
if (modules_sym->curr.tri == no)
|
|
type = S_BOOLEAN;
|
|
}
|
|
switch (type) {
|
|
case S_BOOLEAN:
|
|
case S_TRISTATE:
|
|
switch (sym_get_tristate_value(sym)) {
|
|
case no:
|
|
fprintf(out, "# CONFIG_%s is not set\n", sym->name);
|
|
if (out_h)
|
|
fprintf(out_h, "#undef CONFIG_%s\n", sym->name);
|
|
break;
|
|
case mod:
|
|
fprintf(out, "CONFIG_%s=m\n", sym->name);
|
|
if (out_h)
|
|
fprintf(out_h, "#define CONFIG_%s_MODULE 1\n", sym->name);
|
|
break;
|
|
case yes:
|
|
fprintf(out, "CONFIG_%s=y\n", sym->name);
|
|
if (out_h)
|
|
fprintf(out_h, "#define CONFIG_%s 1\n", sym->name);
|
|
break;
|
|
}
|
|
break;
|
|
case S_STRING:
|
|
// fix me
|
|
str = sym_get_string_value(sym);
|
|
fprintf(out, "CONFIG_%s=\"", sym->name);
|
|
if (out_h)
|
|
fprintf(out_h, "#define CONFIG_%s \"", sym->name);
|
|
do {
|
|
l = strcspn(str, "\"\\");
|
|
if (l) {
|
|
fwrite(str, l, 1, out);
|
|
if (out_h)
|
|
fwrite(str, l, 1, out_h);
|
|
}
|
|
str += l;
|
|
while (*str == '\\' || *str == '"') {
|
|
fprintf(out, "\\%c", *str);
|
|
if (out_h)
|
|
fprintf(out_h, "\\%c", *str);
|
|
str++;
|
|
}
|
|
} while (*str);
|
|
fputs("\"\n", out);
|
|
if (out_h)
|
|
fputs("\"\n", out_h);
|
|
break;
|
|
case S_HEX:
|
|
str = sym_get_string_value(sym);
|
|
if (str[0] != '0' || (str[1] != 'x' && str[1] != 'X')) {
|
|
fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
|
|
if (out_h)
|
|
fprintf(out_h, "#define CONFIG_%s 0x%s\n", sym->name, str);
|
|
break;
|
|
}
|
|
case S_INT:
|
|
str = sym_get_string_value(sym);
|
|
fprintf(out, "CONFIG_%s=%s\n", sym->name, str);
|
|
if (out_h)
|
|
fprintf(out_h, "#define CONFIG_%s %s\n", sym->name, str);
|
|
break;
|
|
}
|
|
}
|
|
|
|
next:
|
|
if (menu->list) {
|
|
menu = menu->list;
|
|
continue;
|
|
}
|
|
if (menu->next)
|
|
menu = menu->next;
|
|
else while ((menu = menu->parent)) {
|
|
if (menu->next) {
|
|
menu = menu->next;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
fclose(out);
|
|
if (out_h) {
|
|
fclose(out_h);
|
|
rename(".tmpconfig.h", "include/linux/autoconf.h");
|
|
file_write_dep(NULL);
|
|
}
|
|
if (!name || basename != conf_def_filename) {
|
|
if (!name)
|
|
name = conf_def_filename;
|
|
sprintf(tmpname, "%s.old", name);
|
|
rename(name, tmpname);
|
|
}
|
|
sprintf(tmpname, "%s%s", dirname, basename);
|
|
if (rename(newname, tmpname))
|
|
return 1;
|
|
|
|
sym_change_count = 0;
|
|
|
|
return 0;
|
|
}
|