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[PATCH] Fix boot code head.S warning

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When compiling a 64-bit kernel on an Ubuntu 6.06 32bit system (whose GCC is also
a cross-compiler for x86_64) I've seen that head.o is compiled as a 64-bit file
(while it should not) and ld complaining about this during linking:
[AK: it happens on all systems with new binutils]

ld: warning: i386:x86-64 architecture of input file
`arch/x86_64/boot/compressed/head.o' is incompatible with i386 output

I've verified that removing -m64 from compilation flags to turn
"-m64 -traditional -m32" into "-traditional -m32" fixes the issue.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andi Kleen <ak@suse.de>
This commit is contained in:
Paolo 'Blaisorblade' Giarrusso 2006-09-26 10:52:37 +02:00 committed by Andi Kleen
parent 7a0a2dff1c
commit b3698c03eb
1 changed files with 2 additions and 1 deletions
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3
arch/x86_64/boot/compressed/Makefile
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@ -7,7 +7,8 @@
#
targets := vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o
EXTRA_AFLAGS := -traditional -m32
EXTRA_AFLAGS := -traditional
AFLAGS := $(subst -m64,-m32,$(AFLAGS))
# cannot use EXTRA_CFLAGS because base CFLAGS contains -mkernel which conflicts with
# -m32