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| author | Adrian Bunk <bunk@stusta.de> | 2006-12-07 02:14:12 +0100 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2006-12-07 02:14:12 +0100 |
| commit | a1a70c25bed75ed36ed48bbe18b9029428d2452d (patch) | |
| tree | 0ab9fcebc25f9f71be61f91bfca96aa1e0585a0d /arch | |
| parent | 73ad8355d7db6a3cdcf313d4a4586a8f81b19c2f (diff) | |
| download | blackbird-op-linux-a1a70c25bed75ed36ed48bbe18b9029428d2452d.tar.gz blackbird-op-linux-a1a70c25bed75ed36ed48bbe18b9029428d2452d.zip | |
[PATCH] i386: always enable regparm
-mregparm=3 has been enabled by default for some time on i386, and AFAIK
there aren't any problems with it left.
This patch removes the REGPARM config option and sets -mregparm=3
unconditionally.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/Kconfig | 14 | ||||
| -rw-r--r-- | arch/i386/Makefile | 4 |
2 files changed, 1 insertions, 17 deletions
diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig index bb1fa061c6cf..b6b2df40ca78 100644 --- a/arch/i386/Kconfig +++ b/arch/i386/Kconfig @@ -721,20 +721,6 @@ config BOOT_IOREMAP depends on (((X86_SUMMIT || X86_GENERICARCH) && NUMA) || (X86 && EFI)) default y -config REGPARM - bool "Use register arguments" - default y - help - 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" depends on PROC_FS diff --git a/arch/i386/Makefile b/arch/i386/Makefile index d1aca52bf690..f7ac1aea1d8a 100644 --- a/arch/i386/Makefile +++ b/arch/i386/Makefile @@ -31,7 +31,7 @@ LDFLAGS_vmlinux := --emit-relocs endif CHECKFLAGS += -D__i386__ -CFLAGS += -pipe -msoft-float +CFLAGS += -pipe -msoft-float -mregparm=3 # prevent gcc from keeping the stack 16 byte aligned CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2) @@ -39,8 +39,6 @@ CFLAGS += $(call cc-option,-mpreferred-stack-boundary=2) # CPU-specific tuning. Anything which can be shared with UML should go here. include $(srctree)/arch/i386/Makefile.cpu -cflags-$(CONFIG_REGPARM) += -mregparm=3 - # temporary until string.h is fixed cflags-y += -ffreestanding |
