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Merge branch 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild 

Pull kconfig changes from Michal Marek:

 - Error handling for make KCONFIG_ALLCONFIG=<...> all*config plus a fix
   for a bug that was exposed by this

 - Fix for the script/config utility.

* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  scripts/config: properly report and set string options
  kbuild: all{no,yes,mod,def,rand}config only read files when instructed to.
  kconfig: Add error handling to KCONFIG_ALLCONFIG
This commit is contained in:
Linus Torvalds 2012-05-28 10:37:56 -07:00
parent 1347a2cebc d6686da814
commit da85d3426f
3 changed files with 32 additions and 19 deletions
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18
Documentation/kbuild/kconfig.txt
View File

@ -53,15 +53,15 @@ KCONFIG_ALLCONFIG
--------------------------------------------------
(partially based on lkml email from/by Rob Landley, re: miniconfig)
--------------------------------------------------
The allyesconfig/allmodconfig/allnoconfig/randconfig variants can
also use the environment variable KCONFIG_ALLCONFIG as a flag or a
filename that contains config symbols that the user requires to be
set to a specific value. If KCONFIG_ALLCONFIG is used without a
filename, "make *config" checks for a file named
"all{yes/mod/no/def/random}.config" (corresponding to the *config command
that was used) for symbol values that are to be forced. If this file
is not found, it checks for a file named "all.config" to contain forced
values.
The allyesconfig/allmodconfig/allnoconfig/randconfig variants can also
use the environment variable KCONFIG_ALLCONFIG as a flag or a filename
that contains config symbols that the user requires to be set to a
specific value. If KCONFIG_ALLCONFIG is used without a filename where
KCONFIG_ALLCONFIG == "" or KCONFIG_ALLCONFIG == "1", "make *config"
checks for a file named "all{yes/mod/no/def/random}.config"
(corresponding to the *config command that was used) for symbol values
that are to be forced. If this file is not found, it checks for a
file named "all.config" to contain forced values.
This enables you to create "miniature" config (miniconfig) or custom
config files containing just the config symbols that you are interested

11
scripts/config
View File

@ -107,7 +107,8 @@ while [ "$1" != "" ] ; do
;;
--set-str)
set_var "CONFIG_$ARG" "CONFIG_$ARG=\"$1\""
# sed swallows one level of escaping, so we need double-escaping
set_var "CONFIG_$ARG" "CONFIG_$ARG=\"${1//\"/\\\\\"}\""
shift
;;
@ -124,9 +125,11 @@ while [ "$1" != "" ] ; do
if [ $? != 0 ] ; then
echo undef
else
V="${V/CONFIG_$ARG=/}"
V="${V/\"/}"
echo "$V"
V="${V/#CONFIG_$ARG=/}"
V="${V/#\"/}"
V="${V/%\"/}"
V="${V/\\\"/\"}"
echo "${V}"
fi
fi
;;

22
scripts/kconfig/conf.c
View File

@ -574,8 +574,15 @@ 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) {
@ -586,10 +593,13 @@ 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;