kconfig: use $K64BIT to set 64BIT with all*config targets

The variable K64BIT can now be used to select the value of CONFIG_64BIT. This is for example useful for powerpc to generate allmodconfig for both bit sizes - like this: make ARCH=powerpc K64BIT=y make ARCH=powerpc K64BIT=n To use this the Kconfig file must use "64BIT" as the config value to select between 32 and 64 bit. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org>

kconfig: use $K64BIT to set 64BIT with all*config targets
The variable K64BIT can now be used to select the value of CONFIG_64BIT. This is for example useful for powerpc to generate allmodconfig for both bit sizes - like this: make ARCH=powerpc K64BIT=y make ARCH=powerpc K64BIT=n To use this the Kconfig file must use "64BIT" as the config value to select between 32 and 64 bit. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Roman Zippel <zippel@linux-m68k.org>
Sam Ravnborg
1 parent 0f855aa64b
Showing 2 changed files with 3 additions and 0 deletions Side-by-side Diff
README
scripts/kconfig/conf.c
@@ -194,6 +194,8 @@
    "make *config" checks for a file named "all{yes/mod/no/random}.config"
    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.
+   Finally it checks the environment variable K64BIT and if found, sets
+   the config symbol "64BIT" to the value of the K64BIT variable.
  
 	NOTES on "make config":
 	- having unnecessary drivers will make the kernel bigger, and can
@@ -591,6 +591,7 @@
 			conf_read_simple(name, S_DEF_USER);
 		else if (!stat("all.config", &tmpstat))
 			conf_read_simple("all.config", S_DEF_USER);
+		conf_set_env_sym("K64BIT", "64BIT", S_DEF_USER);
 		break;
 	default:
 		break;
...	...	@@ -194,6 +194,8 @@
194	194	"make *config" checks for a file named "all{yes/mod/no/random}.config"
195	195	for symbol values that are to be forced. If this file is not found,
196	196	it checks for a file named "all.config" to contain forced values.
	197	+ Finally it checks the environment variable K64BIT and if found, sets
	198	+ the config symbol "64BIT" to the value of the K64BIT variable.
197	199
198	200	NOTES on "make config":
199	201	- having unnecessary drivers will make the kernel bigger, and can
...	...	@@ -591,6 +591,7 @@
591	591	conf_read_simple(name, S_DEF_USER);
592	592	else if (!stat("all.config", &tmpstat))
593	593	conf_read_simple("all.config", S_DEF_USER);
	594	+ conf_set_env_sym("K64BIT", "64BIT", S_DEF_USER);
594	595	break;
595	596	default:
596	597	break;