Messages in this thread Patch in this message | | | Date | Sun, 4 Jul 2004 13:24:20 +0200 | From | Olaf Hering <> | Subject | [PATCH] biarch gcc support for ppc32 |
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a native powerpc64-linux gcc can not compile a ppc32 kernel properly. This patch fixes it. It was copied from ppc64. The change to vmlinux.lds.S fixes this error:
ld: warning: powerpc:common architecture of input file `init/built-in.o' is incompatible with powerpc:common64 output
diff -purNX /tmp/kernel_exclude.txt linux-2.6.7.orig/arch/ppc/Makefile linux-2.6.7/arch/ppc/Makefile --- linux-2.6.7.orig/arch/ppc/Makefile 2004-07-04 08:42:32.000000000 +0000 +++ linux-2.6.7/arch/ppc/Makefile 2004-07-04 10:44:18.997644396 +0000 @@ -13,6 +13,13 @@ # This must match PAGE_OFFSET in include/asm-ppc/page.h. KERNELLOAD := $(CONFIG_KERNEL_START) +HAS_BIARCH := $(shell if $(CC) -m32 -S -o /dev/null -xc /dev/null > /dev/null 2>&1; then echo y; else echo n; fi;) +ifeq ($(HAS_BIARCH),y) +AS := $(AS) -a32 +LD := $(LD) -m elf32ppc +CC := $(CC) -m32 +endif + LDFLAGS_vmlinux := -Ttext $(KERNELLOAD) -Bstatic CPPFLAGS += -Iarch/$(ARCH) AFLAGS += -Iarch/$(ARCH) diff -purNX /tmp/kernel_exclude.txt linux-2.6.7.orig/arch/ppc/kernel/vmlinux.lds.S linux-2.6.7/arch/ppc/kernel/vmlinux.lds.S --- linux-2.6.7.orig/arch/ppc/kernel/vmlinux.lds.S 2004-06-16 05:20:26.000000000 +0000 +++ linux-2.6.7/arch/ppc/kernel/vmlinux.lds.S 2004-07-04 10:39:32.000000000 +0000 @@ -1,6 +1,6 @@ #include <asm-generic/vmlinux.lds.h> -OUTPUT_ARCH(powerpc) +OUTPUT_ARCH(powerpc:common) jiffies = jiffies_64 + 4; SECTIONS { -- USB is for mice, FireWire is for men! sUse lINUX ag, nÜRNBERG - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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