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path: root/scripts/kconfig/confdata.c
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Diffstat (limited to 'scripts/kconfig/confdata.c') (more/less context) (ignore whitespace changes)
-rw-r--r--scripts/kconfig/confdata.c152
1 files changed, 98 insertions, 54 deletions
diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 9bf7af9..f3796ce 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -1,378 +1,422 @@
/*
* 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 <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-$UNAME_RELEASE",
conf_defname,
NULL,
};
static char *conf_expand_value(const char *in)
{
struct symbol *sym;
const char *src;
static char res_value[SYMBOL_MAXLENGTH];
char *dst, name[SYMBOL_MAXLENGTH];
res_value[0] = 0;
dst = name;
while ((src = strchr(in, '$'))) {
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 (S_VAL(sym->def))
- free(S_VAL(sym->def));
+ if (sym->user.val)
+ free(sym->user.val);
default:
- S_VAL(sym->def) = NULL;
- S_TRI(sym->def) = no;
+ sym->user.val = NULL;
+ sym->user.tri = no;
}
}
while (fgets(line, sizeof(line), in)) {
lineno++;
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_lookup(line + 9, 0);
switch (sym->type) {
case S_BOOLEAN:
case S_TRISTATE:
- sym->def = symbol_no.curr;
+ sym->user = symbol_no.curr;
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') {
- S_TRI(sym->def) = mod;
+ sym->user.tri = mod;
sym->flags &= ~SYMBOL_NEW;
break;
}
case S_BOOLEAN:
if (p[0] == 'y') {
- S_TRI(sym->def) = yes;
+ sym->user.tri = yes;
sym->flags &= ~SYMBOL_NEW;
break;
}
if (p[0] == 'n') {
- S_TRI(sym->def) = no;
+ 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)) {
- S_VAL(sym->def) = strdup(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:
;
}
if (sym_is_choice_value(sym)) {
- prop = sym_get_choice_prop(sym);
- switch (S_TRI(sym->def)) {
+ struct symbol *cs = prop_get_symbol(sym_get_choice_prop(sym));
+ switch (sym->user.tri) {
case mod:
- if (S_TRI(prop->def->def) == yes)
+ if (cs->user.tri == yes)
/* warn? */;
break;
case yes:
- if (S_TRI(prop->def->def) != no)
+ if (cs->user.tri != no)
/* warn? */;
- S_VAL(prop->def->def) = sym;
+ cs->user.val = sym;
break;
case no:
break;
}
- S_TRI(prop->def->def) = S_TRI(sym->def);
+ cs->user.tri = sym->user.tri;
}
break;
case '\n':
break;
default:
continue;
}
}
fclose(in);
for_all_symbols(i, sym) {
+ sym_calc_value(sym);
+ if (sym_has_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);
sym->flags &= ~SYMBOL_NEW;
- for (e = prop->dep; e; e = e->left.expr)
- sym->flags |= e->right.sym->flags & SYMBOL_NEW;
+ 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;
- char oldname[128];
+ const char *basename;
+ char dirname[128], tmpname[128], newname[128];
int type, l;
const char *str;
- out = fopen(".tmpconfig", "w");
+ dirname[0] = 0;
+ if (name && name[0]) {
+ char *slash = strrchr(name, '/');
+ if (slash) {
+ 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, getpid());
+ out = fopen(newname, "w");
if (!out)
return 1;
- out_h = fopen(".tmpconfig.h", "w");
- if (!out_h)
- return 1;
+ out_h = NULL;
+ if (!name) {
+ out_h = fopen(".tmpconfig.h", "w");
+ if (!out_h)
+ return 1;
+ }
fprintf(out, "#\n"
"# Automatically generated make config: don't edit\n"
"#\n");
- fprintf(out_h, "/*\n"
- " * Automatically generated C config: don't edit\n"
- " */\n"
- "#define AUTOCONF_INCLUDED\n");
+ if (out_h)
+ fprintf(out_h, "/*\n"
+ " * Automatically generated C config: don't edit\n"
+ " */\n"
+ "#define AUTOCONF_INCLUDED\n");
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);
- fprintf(out_h, "\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 (S_TRI(modules_sym->curr) == no)
+ 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);
- fprintf(out_h, "#undef CONFIG_%s\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);
- fprintf(out_h, "#define CONFIG_%s_MODULE 1\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);
- fprintf(out_h, "#define CONFIG_%s 1\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);
- fprintf(out_h, "#define 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);
- fwrite(str, l, 1, out_h);
+ if (out_h)
+ fwrite(str, l, 1, out_h);
}
str += l;
while (*str == '\\' || *str == '"') {
fprintf(out, "\\%c", *str);
- fprintf(out_h, "\\%c", *str);
+ if (out_h)
+ fprintf(out_h, "\\%c", *str);
str++;
}
} while (*str);
fputs("\"\n", out);
- fputs("\"\n", out_h);
+ 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);
- fprintf(out_h, "#define CONFIG_%s 0x%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);
- fprintf(out_h, "#define 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);
- fclose(out_h);
-
- if (!name) {
+ if (out_h) {
+ fclose(out_h);
rename(".tmpconfig.h", "include/linux/autoconf.h");
- name = conf_def_filename;
- file_write_dep(NULL);
- } else
- unlink(".tmpconfig.h");
-
- sprintf(oldname, "%s.old", name);
- rename(name, oldname);
- if (rename(".tmpconfig", name))
+ }
+ 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;
}