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| author | Andi Kleen <ak@suse.de> | 2006-01-11 22:43:54 +0100 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-11 19:04:52 -0800 |
| commit | bb33421dde79f9a36d5485c56335ff178ac7d268 (patch) | |
| tree | f4b8843d9295c1efb550e869352e578cb8667ce1 /arch/x86_64/Makefile | |
| parent | 79c62cf1789f935280138b412bb750be84aec747 (diff) | |
| download | linux-3.10-bb33421dde79f9a36d5485c56335ff178ac7d268.tar.gz linux-3.10-bb33421dde79f9a36d5485c56335ff178ac7d268.tar.bz2 linux-3.10-bb33421dde79f9a36d5485c56335ff178ac7d268.zip | |
[PATCH] x86_64: Allow compilation on a 32bit biarch toolchain
This might help on distributions that use a 32bit biarch compiler.
First pass -m64 by default.
Secondly add some more .code32s because at least the Ubuntu biarch
32bit as called by gcc doesn't seem to handle -m64 -m32 as generated
by the Makefile without such assistance.
And finally make sure the linker script can be preprocessed
with a 32bit cpp.
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/x86_64/Makefile')
| -rw-r--r-- | arch/x86_64/Makefile | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile index 2d3e9be229c..d7fd46479c5 100644 --- a/arch/x86_64/Makefile +++ b/arch/x86_64/Makefile @@ -31,6 +31,7 @@ cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8) cflags-$(CONFIG_MPSC) += $(call cc-option,-march=nocona) CFLAGS += $(cflags-y) +CFLAGS += -m64 CFLAGS += -mno-red-zone CFLAGS += -mcmodel=kernel CFLAGS += -pipe @@ -52,6 +53,8 @@ CFLAGS += $(call cc-option,-funit-at-a-time) # prevent gcc from generating any FP code by mistake CFLAGS += $(call cc-option,-mno-sse -mno-mmx -mno-sse2 -mno-3dnow,) +AFLAGS += -m64 + head-y := arch/x86_64/kernel/head.o arch/x86_64/kernel/head64.o arch/x86_64/kernel/init_task.o libs-y += arch/x86_64/lib/ |