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authorIngo Molnar <mingo@elte.hu>2006-03-23 05:59:29 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-03-23 10:38:03 -0500
commitb824eb605ccba995fd32c6590aed365f93d48002 (patch)
treef5720240b044b46ac83e127e2c5586cd8ef2ed75 /arch/i386/Kconfig
parent69ef4141e03fab1c6956d3c760584c72b548a26f (diff)
[PATCH] Make CONFIG_REGPARM enabled by default
Make CONFIG_REGPARM enabled by default. It's a noticable win both for size and for performance, and gcc[34] handles it correctly. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/i386/Kconfig')
-rw-r--r--arch/i386/Kconfig12
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 69c8a70e854b..5f89c74537ef 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -661,9 +661,17 @@ config BOOT_IOREMAP
661 661
662config REGPARM 662config REGPARM
663 bool "Use register arguments" 663 bool "Use register arguments"
664 default y
664 help 665 help
665 Compile the kernel with -mregparm=3. This uses a different ABI 666 Compile the kernel with -mregparm=3. This instructs gcc to use
666 and passes the first three arguments of a function call in registers. 667 a more efficient function call ABI which passes the first three
668 arguments of a function call via registers, which results in denser
669 and faster code.
670
671 If this option is disabled, then the default ABI of passing
672 arguments via the stack is used.
673
674 If unsure, say Y.
667 675
668config SECCOMP 676config SECCOMP
669 bool "Enable seccomp to safely compute untrusted bytecode" 677 bool "Enable seccomp to safely compute untrusted bytecode"