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Subject[PATCH 2/2] kconfig: make oldconfig less chatty and clean up conf.c
From 48ff933e08c7c5b625a82ffdae5ece9c0f4e0a87 Mon Sep 17 00:00:00 2001
From: Sam Ravnborg <sam@ravnborg.org>
Date: Sun, 4 May 2008 20:50:14 +0200
Subject: [PATCH] kconfig: make oldconfig less chatty and clean up conf.c

Moving randconfg, all*config support to aconf.c
allowed conf.c to be cleaned up.
While cleaning up conf.c the chatty oldconfig mode
was killed and conf.c is now only used for two purposes:

make config:
Interactively ask for each config option

make oldconfig
Interactively ask for each new config option

We now check for valid stadin in both cases and this
may break a script here and there.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
---
Makefile | 2 +-
scripts/kconfig/Makefile | 5 +-
scripts/kconfig/conf.c | 168 ++++------------------------------------------
3 files changed, 16 insertions(+), 159 deletions(-)

diff --git a/Makefile b/Makefile
index 4492984..1e91804 100644
--- a/Makefile
+++ b/Makefile
@@ -473,7 +473,7 @@ $(KCONFIG_CONFIG) include/config/auto.conf.cmd: ;
# if auto.conf.cmd is missing then we are probably in a cleaned tree so
# we execute the config step to be sure to catch updated Kconfig files
include/config/auto.conf: $(KCONFIG_CONFIG) include/config/auto.conf.cmd
- $(Q)$(MAKE) -f $(srctree)/Makefile silentoldconfig
+ $(Q)$(MAKE) -f $(srctree)/Makefile oldconfig
else
# external modules needs include/linux/autoconf.h and include/config/auto.conf
# but do not care if they are up-to-date. Use auto.conf to trigger the test
diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile
index 70b329d..fa4f746 100644
--- a/scripts/kconfig/Makefile
+++ b/scripts/kconfig/Makefile
@@ -18,12 +18,9 @@ menuconfig: $(obj)/mconf
config: $(obj)/conf
$< $(Kconfig)

-oldconfig: $(obj)/conf
+oldconfig silentoldconfig: $(obj)/conf
$< -o $(Kconfig)

-silentoldconfig: $(obj)/conf
- $< -s $(Kconfig)
-
# Create new linux.pot file
# Adjust charset to UTF-8 in .po file to accept UTF-8 in Kconfig files
# The symlink is used to repair a deficiency in arch/um
diff --git a/scripts/kconfig/conf.c b/scripts/kconfig/conf.c
index fda6313..263165d 100644
--- a/scripts/kconfig/conf.c
+++ b/scripts/kconfig/conf.c
@@ -21,14 +21,7 @@ static void check_conf(struct menu *menu);
enum {
ask_all,
ask_new,
- ask_silent,
- set_default,
- set_yes,
- set_mod,
- set_no,
- set_random
} input_mode = ask_all;
-char *defconfig_file;

static int indent = 1;
static int valid_stdin = 1;
@@ -65,18 +58,17 @@ static void strip(char *str)

static void check_stdin(void)
{
- if (!valid_stdin && input_mode == ask_silent) {
- printf(_("aborted!\n\n"));
- printf(_("Console input/output is redirected. "));
- printf(_("Run 'make oldconfig' to update configuration.\n\n"));
- exit(1);
- }
+ if (valid_stdin)
+ return;
+ fprintf(stderr, _("aborted!\n\n"));
+ fprintf(stderr, _("Console input/output is redirected. "));
+ fprintf(stderr, _("Run 'make oldconfig' to update configuration.\n\n"));
+ exit(1);
}

static int conf_askvalue(struct symbol *sym, const char *def)
{
enum symbol_type type = sym_get_type(sym);
- tristate val;

if (!sym_has_value(sym))
printf(_("(NEW) "));
@@ -91,32 +83,17 @@ static int conf_askvalue(struct symbol *sym, const char *def)
return 0;
}

+ check_stdin();
switch (input_mode) {
- case set_no:
- case set_mod:
- case set_yes:
- case set_random:
- if (sym_has_value(sym)) {
- printf("%s\n", def);
- return 0;
- }
- break;
case ask_new:
- case ask_silent:
if (sym_has_value(sym)) {
printf("%s\n", def);
return 0;
}
- check_stdin();
case ask_all:
fflush(stdout);
fgets(line, 128, stdin);
return 1;
- case set_default:
- printf("%s\n", def);
- return 1;
- default:
- break;
}

switch (type) {
@@ -128,52 +105,6 @@ static int conf_askvalue(struct symbol *sym, const char *def)
default:
;
}
- switch (input_mode) {
- case set_yes:
- if (sym_tristate_within_range(sym, yes)) {
- line[0] = 'y';
- line[1] = '\n';
- line[2] = 0;
- break;
- }
- case set_mod:
- if (type == S_TRISTATE) {
- if (sym_tristate_within_range(sym, mod)) {
- line[0] = 'm';
- line[1] = '\n';
- line[2] = 0;
- break;
- }
- } else {
- if (sym_tristate_within_range(sym, yes)) {
- line[0] = 'y';
- line[1] = '\n';
- line[2] = 0;
- break;
- }
- }
- case set_no:
- if (sym_tristate_within_range(sym, no)) {
- line[0] = 'n';
- line[1] = '\n';
- line[2] = 0;
- break;
- }
- case set_random:
- do {
- val = (tristate)(rand() % 3);
- } while (!sym_tristate_within_range(sym, val));
- switch (val) {
- case no: line[0] = 'n'; break;
- case mod: line[0] = 'm'; break;
- case yes: line[0] = 'y'; break;
- }
- line[1] = '\n';
- line[2] = 0;
- break;
- default:
- break;
- }
printf("%s", line);
return 1;
}
@@ -352,7 +283,6 @@ static int conf_choice(struct menu *menu)
printf("]: ");
switch (input_mode) {
case ask_new:
- case ask_silent:
if (!is_new) {
cnt = def;
printf("%d\n", cnt);
@@ -374,16 +304,6 @@ static int conf_choice(struct menu *menu)
else
continue;
break;
- case set_random:
- if (is_new)
- def = (rand() % cnt) + 1;
- case set_default:
- case set_yes:
- case set_mod:
- case set_no:
- cnt = def;
- printf("%d\n", cnt);
- break;
}

conf_childs:
@@ -425,7 +345,7 @@ static void conf(struct menu *menu)

switch (prop->type) {
case P_MENU:
- if (input_mode == ask_silent && rootEntry != menu) {
+ if (input_mode != ask_all && rootEntry != menu) {
check_conf(menu);
return;
}
@@ -504,35 +424,13 @@ int main(int ac, char **av)
bindtextdomain(PACKAGE, LOCALEDIR);
textdomain(PACKAGE);

- while ((opt = getopt(ac, av, "osdD:nmyrh")) != -1) {
+ valid_stdin = isatty(0) && isatty(1) && isatty(2);
+
+ while ((opt = getopt(ac, av, "oh")) != -1) {
switch (opt) {
case 'o':
input_mode = ask_new;
break;
- case 's':
- input_mode = ask_silent;
- valid_stdin = isatty(0) && isatty(1) && isatty(2);
- break;
- case 'd':
- input_mode = set_default;
- break;
- case 'D':
- input_mode = set_default;
- defconfig_file = optarg;
- break;
- case 'n':
- input_mode = set_no;
- break;
- case 'm':
- input_mode = set_mod;
- break;
- case 'y':
- input_mode = set_yes;
- break;
- case 'r':
- input_mode = set_random;
- srand(time(NULL));
- break;
case 'h':
printf(_("See README for usage info\n"));
exit(0);
@@ -550,17 +448,7 @@ int main(int ac, char **av)
conf_parse(name);
//zconfdump(stdout);
switch (input_mode) {
- case set_default:
- if (!defconfig_file)
- defconfig_file = conf_get_default_confname();
- if (conf_read(defconfig_file)) {
- printf(_("***\n"
- "*** Can't find default configuration \"%s\"!\n"
- "***\n"), defconfig_file);
- exit(1);
- }
- break;
- case ask_silent:
+ case ask_new:
if (stat(".config", &tmpstat)) {
printf(_("***\n"
"*** You have not yet configured your kernel!\n"
@@ -572,41 +460,13 @@ int main(int ac, char **av)
exit(1);
}
case ask_all:
- case ask_new:
conf_read(NULL);
break;
- case set_no:
- case set_mod:
- case set_yes:
- case set_random:
- name = getenv("KCONFIG_ALLCONFIG");
- if (name && !stat(name, &tmpstat)) {
- conf_read_simple(name, S_DEF_USER);
- break;
- }
- switch (input_mode) {
- case set_no: name = "allno.config"; break;
- case set_mod: name = "allmod.config"; break;
- case set_yes: name = "allyes.config"; break;
- case set_random: 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);
- break;
- default:
- break;
}

- if (input_mode != ask_silent) {
+ if (input_mode == ask_all) {
rootEntry = &rootmenu;
conf(&rootmenu);
- if (input_mode == ask_all) {
- input_mode = ask_silent;
- valid_stdin = 1;
- }
} else if (conf_get_changed()) {
name = getenv("KCONFIG_NOSILENTUPDATE");
if (name && *name) {
@@ -625,7 +485,7 @@ int main(int ac, char **av)
return 1;
}
skip_check:
- if (input_mode == ask_silent && conf_write_autoconf()) {
+ if (conf_write_autoconf()) {
fprintf(stderr, _("\n*** Error during writing of the kernel configuration.\n\n"));
return 1;
}
--
1.5.4.1.143.ge7e51


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