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Diffstat (limited to 'scripts/kconfig/conf.c')
-rw-r--r--scripts/kconfig/conf.c118
1 files changed, 91 insertions, 27 deletions
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index 659326c3e89..fef75fc756f 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -13,12 +13,13 @@
#include <getopt.h>
#include <sys/stat.h>
#include <sys/time.h>
+#include <errno.h>
-#define LKC_DIRECT_LINK
#include "lkc.h"
static void conf(struct menu *menu);
static void check_conf(struct menu *menu);
+static void xfgets(char *str, int size, FILE *in);
enum input_mode {
oldaskconfig,
@@ -32,12 +33,11 @@ enum input_mode {
defconfig,
savedefconfig,
listnewconfig,
- oldnoconfig,
+ olddefconfig,
} input_mode = oldaskconfig;
-char *defconfig_file;
-
static int indent = 1;
+static int tty_stdio;
static int valid_stdin = 1;
static int sync_kconfig;
static int conf_cnt;
@@ -106,9 +106,12 @@ static int conf_askvalue(struct symbol *sym, const char *def)
return 0;
}
check_stdin();
+ /* fall through */
case oldaskconfig:
fflush(stdout);
xfgets(line, 128, stdin);
+ if (!tty_stdio)
+ printf("\n");
return 1;
default:
break;
@@ -150,6 +153,7 @@ static int conf_string(struct menu *menu)
def = NULL;
break;
}
+ /* fall through */
default:
line[strlen(line)-1] = 0;
def = line;
@@ -304,6 +308,7 @@ static int conf_choice(struct menu *menu)
break;
}
check_stdin();
+ /* fall through */
case oldaskconfig:
fflush(stdout);
xfgets(line, 128, stdin);
@@ -332,7 +337,7 @@ static int conf_choice(struct menu *menu)
}
if (!child)
continue;
- if (line[strlen(line) - 1] == '?') {
+ if (line[0] && line[strlen(line) - 1] == '?') {
print_help(child);
continue;
}
@@ -364,11 +369,12 @@ static void conf(struct menu *menu)
case P_MENU:
if ((input_mode == silentoldconfig ||
input_mode == listnewconfig ||
- input_mode == oldnoconfig) &&
+ input_mode == olddefconfig) &&
rootEntry != menu) {
check_conf(menu);
return;
}
+ /* fall through */
case P_COMMENT:
prompt = menu_get_prompt(menu);
if (prompt)
@@ -427,7 +433,7 @@ static void check_conf(struct menu *menu)
if (sym->name && !sym_is_choice_value(sym)) {
printf("%s%s\n", CONFIG_, sym->name);
}
- } else if (input_mode != oldnoconfig) {
+ } else if (input_mode != olddefconfig) {
if (!conf_cnt++)
printf(_("*\n* Restart config...\n*\n"));
rootEntry = menu_get_parent_menu(menu);
@@ -452,20 +458,49 @@ static struct option long_opts[] = {
{"alldefconfig", no_argument, NULL, alldefconfig},
{"randconfig", no_argument, NULL, randconfig},
{"listnewconfig", no_argument, NULL, listnewconfig},
- {"oldnoconfig", no_argument, NULL, oldnoconfig},
+ {"olddefconfig", no_argument, NULL, olddefconfig},
+ /*
+ * oldnoconfig is an alias of olddefconfig, because people already
+ * are dependent on its behavior(sets new symbols to their default
+ * value but not 'n') with the counter-intuitive name.
+ */
+ {"oldnoconfig", no_argument, NULL, olddefconfig},
{NULL, 0, NULL, 0}
};
+static void conf_usage(const char *progname)
+{
+
+ printf("Usage: %s [option] <kconfig-file>\n", progname);
+ printf("[option] is _one_ of the following:\n");
+ printf(" --listnewconfig List new options\n");
+ printf(" --oldaskconfig Start a new configuration using a line-oriented program\n");
+ printf(" --oldconfig Update a configuration using a provided .config as base\n");
+ printf(" --silentoldconfig Same as oldconfig, but quietly, additionally update deps\n");
+ printf(" --olddefconfig Same as silentoldconfig but sets new symbols to their default value\n");
+ printf(" --oldnoconfig An alias of olddefconfig\n");
+ printf(" --defconfig <file> New config with default defined in <file>\n");
+ printf(" --savedefconfig <file> Save the minimal current configuration to <file>\n");
+ printf(" --allnoconfig New config where all options are answered with no\n");
+ printf(" --allyesconfig New config where all options are answered with yes\n");
+ printf(" --allmodconfig New config where all options are answered with mod\n");
+ printf(" --alldefconfig New config with all symbols set to default\n");
+ printf(" --randconfig New config with random answer to all options\n");
+}
+
int main(int ac, char **av)
{
+ const char *progname = av[0];
int opt;
- const char *name;
+ const char *name, *defconfig_file = NULL /* gcc uninit */;
struct stat tmpstat;
setlocale(LC_ALL, "");
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);
+ tty_stdio = isatty(0) && isatty(1) && isatty(2);
+
while ((opt = getopt_long(ac, av, "", long_opts, NULL)) != -1) {
input_mode = (enum input_mode)opt;
switch (opt) {
@@ -480,25 +515,45 @@ int main(int ac, char **av)
{
struct timeval now;
unsigned int seed;
+ char *seed_env;
/*
* Use microseconds derived seed,
* compensate for systems where it may be zero
*/
gettimeofday(&now, NULL);
-
seed = (unsigned int)((now.tv_sec + 1) * (now.tv_usec + 1));
+
+ seed_env = getenv("KCONFIG_SEED");
+ if( seed_env && *seed_env ) {
+ char *endp;
+ int tmp = (int)strtol(seed_env, &endp, 0);
+ if (*endp == '\0') {
+ seed = tmp;
+ }
+ }
+ fprintf( stderr, "KCONFIG_SEED=0x%X\n", seed );
srand(seed);
break;
}
+ case oldaskconfig:
+ case oldconfig:
+ case allnoconfig:
+ case allyesconfig:
+ case allmodconfig:
+ case alldefconfig:
+ case listnewconfig:
+ case olddefconfig:
+ break;
case '?':
- fprintf(stderr, _("See README for usage info\n"));
+ conf_usage(progname);
exit(1);
break;
}
}
if (ac == optind) {
printf(_("%s: Kconfig file missing\n"), av[0]);
+ conf_usage(progname);
exit(1);
}
name = av[optind];
@@ -533,7 +588,7 @@ int main(int ac, char **av)
case oldaskconfig:
case oldconfig:
case listnewconfig:
- case oldnoconfig:
+ case olddefconfig:
conf_read(NULL);
break;
case allnoconfig:
@@ -542,8 +597,15 @@ int main(int ac, char **av)
case alldefconfig:
case randconfig:
name = getenv("KCONFIG_ALLCONFIG");
- if (name && !stat(name, &tmpstat)) {
- conf_read_simple(name, S_DEF_USER);
+ if (!name)
+ break;
+ if ((strcmp(name, "") != 0) && (strcmp(name, "1") != 0)) {
+ if (conf_read_simple(name, S_DEF_USER)) {
+ fprintf(stderr,
+ _("*** Can't read seed configuration \"%s\"!\n"),
+ name);
+ exit(1);
+ }
break;
}
switch (input_mode) {
@@ -554,10 +616,13 @@ int main(int ac, char **av)
case randconfig: name = "allrandom.config"; break;
default: break;
}
- if (!stat(name, &tmpstat))
- conf_read_simple(name, S_DEF_USER);
- else if (!stat("all.config", &tmpstat))
- conf_read_simple("all.config", S_DEF_USER);
+ if (conf_read_simple(name, S_DEF_USER) &&
+ conf_read_simple("all.config", S_DEF_USER)) {
+ fprintf(stderr,
+ _("*** KCONFIG_ALLCONFIG set, but no \"%s\" or \"all.config\" file found\n"),
+ name);
+ exit(1);
+ }
break;
default:
break;
@@ -572,7 +637,7 @@ int main(int ac, char **av)
return 1;
}
}
- valid_stdin = isatty(0) && isatty(1) && isatty(2);
+ valid_stdin = tty_stdio;
}
switch (input_mode) {
@@ -589,7 +654,8 @@ int main(int ac, char **av)
conf_set_all_new_symbols(def_default);
break;
case randconfig:
- conf_set_all_new_symbols(def_random);
+ /* Really nothing to do in this loop */
+ while (conf_set_all_new_symbols(def_random)) ;
break;
case defconfig:
conf_set_all_new_symbols(def_default);
@@ -603,7 +669,7 @@ int main(int ac, char **av)
/* fall through */
case oldconfig:
case listnewconfig:
- case oldnoconfig:
+ case olddefconfig:
case silentoldconfig:
/* Update until a loop caused no more changes */
do {
@@ -611,7 +677,7 @@ int main(int ac, char **av)
check_conf(&rootmenu);
} while (conf_cnt &&
(input_mode != listnewconfig &&
- input_mode != oldnoconfig));
+ input_mode != olddefconfig));
break;
}
@@ -630,7 +696,7 @@ int main(int ac, char **av)
} else if (input_mode == savedefconfig) {
if (conf_write_defconfig(defconfig_file)) {
fprintf(stderr, _("n*** Error while saving defconfig to: %s\n\n"),
- defconfig_file);
+ defconfig_file);
return 1;
}
} else if (input_mode != listnewconfig) {
@@ -641,13 +707,11 @@ int main(int ac, char **av)
}
return 0;
}
+
/*
* Helper function to facilitate fgets() by Jean Sacren.
*/
-void xfgets(str, size, in)
- char *str;
- int size;
- FILE *in;
+void xfgets(char *str, int size, FILE *in)
{
if (fgets(str, size, in) == NULL)
fprintf(stderr, "\nError in reading or end of file.\n");
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 14:37:30 +0000