From da3de6df33f5f42ff9dc40093fbc884f524c9a49 Mon Sep 17 00:00:00 2001 From: Kumar Gala Date: Fri, 13 Jun 2008 07:20:58 +1000 Subject: [POWERPC] Fix -Os kernel builds with newer gcc versions GCC 4.4.x looks to be adding support for generating out-of-line register saves/restores based on: http://gcc.gnu.org/ml/gcc-patches/2008-04/msg01678.html This breaks the kernel if we enable CONFIG_CC_OPTIMIZE_FOR_SIZE. To fix this we add the use the save/restore code from gcc and simplified it down for our needs (integer only). Additionally, we have to link this code into each module. The other solution was to add EXPORT_SYMBOL() which meant going through the trampoline which seemed nonsensical for these out-of-line routines. Finally, we add some checks to prom_init_check.sh to ignore the out-of-line save/restore functions. Signed-off-by: Kumar Gala Signed-off-by: Paul Mackerras --- arch/powerpc/lib/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/powerpc/lib/Makefile') diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile index c71d37dc6a88..e522b06cc42f 100644 --- a/arch/powerpc/lib/Makefile +++ b/arch/powerpc/lib/Makefile @@ -9,7 +9,7 @@ endif ifeq ($(CONFIG_PPC_MERGE),y) obj-y := string.o alloc.o \ checksum_$(CONFIG_WORD_SIZE).o -obj-$(CONFIG_PPC32) += div64.o copy_32.o +obj-$(CONFIG_PPC32) += div64.o copy_32.o crtsavres.o obj-$(CONFIG_HAS_IOMEM) += devres.o endif -- cgit v1.2.2