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authorCédric Le Goater <clg@fr.ibm.com>2014-04-24 07:23:39 (GMT)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2014-04-28 07:36:21 (GMT)
commit147c05168fc86e824ccd1c0a02b40843e3cbca88 (patch)
treeb11fef2a92755918913b6c630d4fdb8f64af394a /arch/powerpc/boot/pseries-head.S
parent2d9afb369bc069f11a3a8696c4bdf95d4ddf1281 (diff)
downloadlinux-147c05168fc86e824ccd1c0a02b40843e3cbca88.tar.xz
powerpc/boot: Add support for 64bit little endian wrapper
The code is only slightly modified : entry points now use the FIXUP_ENDIAN trampoline to switch endian order. The 32bit wrapper is kept for big endian kernels and 64bit is enforced for little endian kernels with a PPC64_BOOT_WRAPPER config option. The linker script is generated using the kernel preprocessor flags to make use of the CONFIG_* definitions and the wrapper script is modified to take into account the new elf64ppc format. Finally, the zImage file is compiled as a position independent executable (-pie) which makes it loadable at any address by the firmware. Signed-off-by: Cédric Le Goater <clg@fr.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/boot/pseries-head.S')
-rw-r--r--arch/powerpc/boot/pseries-head.S3
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/boot/pseries-head.S b/arch/powerpc/boot/pseries-head.S
index 655c3d2..6ef6e02 100644
--- a/arch/powerpc/boot/pseries-head.S
+++ b/arch/powerpc/boot/pseries-head.S
@@ -1,5 +1,8 @@
+#include "ppc_asm.h"
+
.text
.globl _zimage_start
_zimage_start:
+ FIXUP_ENDIAN
b _zimage_start_lib