Commit 9dfb563b authored by Randy Dunlap's avatar Randy Dunlap Committed by Linus Torvalds

[PATCH] config: update usage/help info

Replace outdated help message with a reference to README.  Update README
for make *config variants and environment variable info.
Signed-off-by: 's avatarRandy Dunlap <rdunlap@xenotime.net>
Acked-by: 's avatarSam Ravnborg <sam@ravnborg.org>
Signed-off-by: 's avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: 's avatarLinus Torvalds <torvalds@osdl.org>
parent 7420884c
......@@ -165,10 +165,31 @@ CONFIGURING the kernel:
"make xconfig" X windows (Qt) based configuration tool.
"make gconfig" X windows (Gtk) based configuration tool.
"make oldconfig" Default all questions based on the contents of
your existing ./.config file.
your existing ./.config file and asking about
new config symbols.
"make silentoldconfig"
Like above, but avoids cluttering the screen
with questions already answered.
"make defconfig" Create a ./.config file by using the default
symbol values from arch/$ARCH/defconfig.
"make allyesconfig"
Create a ./.config file by setting symbol
values to 'y' as much as possible.
"make allmodconfig"
Create a ./.config file by setting symbol
values to 'm' as much as possible.
"make allnoconfig" Create a ./.config file by setting symbol
values to 'n' as much as possible.
"make randconfig" Create a ./.config file by setting symbol
values to random values.
The allyesconfig/allmodconfig/allnoconfig/randconfig variants can
also use the environment variable KCONFIG_ALLCONFIG to specify a
filename that contains config options that the user requires to be
set to a specific value. If KCONFIG_ALLCONFIG=filename is not used,
"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.
NOTES on "make config":
- having unnecessary drivers will make the kernel bigger, and can
......
......@@ -5,6 +5,7 @@
#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <time.h>
......@@ -531,7 +532,7 @@ int main(int ac, char **av)
break;
case 'h':
case '?':
printf("%s [-o|-s] config\n", av[0]);
fprintf(stderr, "See README for usage info\n");
exit(0);
}
}
......
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