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[PATCH] Make CONFIG_REGPARM enabled by default

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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>
This commit is contained in:
Ingo Molnar 2006-03-23 02:59:29 -08:00 committed by Linus Torvalds
parent 69ef4141e0
commit b824eb605c
1 changed files with 10 additions and 2 deletions
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12
arch/i386/Kconfig
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@ -661,9 +661,17 @@ config BOOT_IOREMAP
config REGPARM
bool "Use register arguments"
default y
help
Compile the kernel with -mregparm=3. This uses a different ABI
and passes the first three arguments of a function call in registers.
Compile the kernel with -mregparm=3. This instructs gcc to use
a more efficient function call ABI which passes the first three
arguments of a function call via registers, which results in denser
and faster code.
If this option is disabled, then the default ABI of passing
arguments via the stack is used.
If unsure, say Y.
config SECCOMP
bool "Enable seccomp to safely compute untrusted bytecode"