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authorMatt Mackall <mpm@selenic.com>2006-01-08 01:05:26 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-08 20:14:11 -0800
commit64ca9004b819ab87648dbfc78f3ef49ee491343e (patch)
tree9b5daef5280800a0006343a17f63072658d91a1d /init
parent708e9a794cf8822b760edaccd9053edb07c34d19 (diff)
downloadlinux-64ca9004b819ab87648dbfc78f3ef49ee491343e.tar.gz
[PATCH] Make vm86 support optional
This adds an option to remove vm86 support under CONFIG_EMBEDDED. Saves about 5k. This version eliminates most of the #ifdefs of the previous version and instead uses function stubs in vm86.h. Also, release_vm86_irqs is moved from asm-i386/irq.h to a more appropriate home in vm86.h so that the stubs can live together. $ size vmlinux-baseline vmlinux-novm86 text data bss dec hex filename 2920821 523232 190652 3634705 377611 vmlinux-baseline 2916268 523100 190492 3629860 376324 vmlinux-novm86 Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'init')
-rw-r--r--init/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/init/Kconfig b/init/Kconfig
index 9ac522a4013..f8f6929d8f2 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -237,6 +237,16 @@ config UID16
help
This enables the legacy 16-bit UID syscall wrappers.
+config VM86
+ depends X86
+ default y
+ bool "Enable VM86 support" if EMBEDDED
+ help
+ This option is required by programs like DOSEMU to run 16-bit legacy
+ code on X86 processors. It also may be needed by software like
+ XFree86 to initialize some video cards via BIOS. Disabling this
+ option saves about 6k.
+
config CC_OPTIMIZE_FOR_SIZE
bool "Optimize for size (Look out for broken compilers!)"
default y