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authorIan Munsie <imunsie@au1.ibm.com>2013-09-23 04:05:11 +0200
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2013-10-11 07:48:56 +0200
commitd72b08017161ab385d4ae080ea415c9eb7ceef83 (patch)
treec20ece2f9d78bf9e7d01824aec499713053c7120 /arch/powerpc/kernel/vdso64
parentKVM: PPC: Disable KVM on little endian builds (diff)
downloadlinux-d72b08017161ab385d4ae080ea415c9eb7ceef83.tar.xz
linux-d72b08017161ab385d4ae080ea415c9eb7ceef83.zip
powerpc: Add ability to build little endian kernels
This patch allows the kbuild system to successfully compile a kernel for the little endian PowerPC64 architecture. A subsequent patch will add the CONFIG_CPU_LITTLE_ENDIAN kernel config option which must be set to build such a kernel. If cross compiling, CROSS_COMPILE must point to a suitable toolchain (compiled for the powerpc64le-linux and powerpcle-linux targets). Signed-off-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/vdso64')
-rw-r--r--arch/powerpc/kernel/vdso64/vdso64.lds.S4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/vdso64/vdso64.lds.S b/arch/powerpc/kernel/vdso64/vdso64.lds.S
index e4863819663b..64fb183a47c2 100644
--- a/arch/powerpc/kernel/vdso64/vdso64.lds.S
+++ b/arch/powerpc/kernel/vdso64/vdso64.lds.S
@@ -4,7 +4,11 @@
*/
#include <asm/vdso.h>
+#ifdef __LITTLE_ENDIAN__
+OUTPUT_FORMAT("elf64-powerpcle", "elf64-powerpcle", "elf64-powerpcle")
+#else
OUTPUT_FORMAT("elf64-powerpc", "elf64-powerpc", "elf64-powerpc")
+#endif
OUTPUT_ARCH(powerpc:common64)
ENTRY(_start)