From 0da1d4a0b9516adb2acc4841e9f6da6618f47f4e Mon Sep 17 00:00:00 2001 From: Josh Triplett Date: Fri, 8 Aug 2014 16:25:47 -0700 Subject: x86: Add "make tinyconfig" to configure the tiniest possible kernel Since commit 5d2acfc7b974bbd3858b4dd3f2cdc6362dd8843a ("kconfig: make allnoconfig disable options behind EMBEDDED and EXPERT") in 3.15-rc1, "make allnoconfig" disables every possible config option. However, a few configuration options (CC_OPTIMIZE_FOR_SIZE, OPTIMIZE_INLINING) produce a smaller kernel when turned on, and a few choices exist (compression, highmem, allocator) for which a non-default option produces a smaller kernel. Add a "tinyconfig" option, which starts from allnoconfig and then sets these options to configure the tiniest possible kernel. This provides a better baseline for embedded systems or efforts to reduce kernel size. Signed-off-by: Josh Triplett --- scripts/kconfig/Makefile | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'scripts') diff --git a/scripts/kconfig/Makefile b/scripts/kconfig/Makefile index 8083b94b45ee..ebf40f6edb4d 100644 --- a/scripts/kconfig/Makefile +++ b/scripts/kconfig/Makefile @@ -117,6 +117,10 @@ PHONY += kvmconfig kvmconfig: $(call mergeconfig,kvm_guest) +PHONY += tinyconfig +tinyconfig: allnoconfig + $(call mergeconfig,tiny) + # Help text used by make help help: @echo ' config - Update current config utilising a line-oriented program' @@ -138,6 +142,7 @@ help: @echo ' listnewconfig - List new options' @echo ' olddefconfig - Same as silentoldconfig but sets new symbols to their default value' @echo ' kvmconfig - Enable additional options for guest kernel support' + @echo ' tinyconfig - Configure the tiniest possible kernel' # lxdialog stuff check-lxdialog := $(srctree)/$(src)/lxdialog/check-lxdialog.sh -- cgit v1.2.3