summaryrefslogtreecommitdiff
path: root/arch/powerpc/boot/crt0.S
diff options
context:
space:
mode:
authorSteve French <sfrench@us.ibm.com>2006-01-17 19:49:59 -0800
committerSteve French <sfrench@us.ibm.com>2006-01-17 19:49:59 -0800
commitd65177c1ae7f085723154105c5dc8d9e16ae8265 (patch)
tree14408129d880d89cc5e937f2810f243ed1e6fcde /arch/powerpc/boot/crt0.S
parentd41f084a74de860fe879403fbbad13abdf7aea8e (diff)
parent15578eeb6cd4b74492f26e60624aa1a9a52ddd7b (diff)
Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'arch/powerpc/boot/crt0.S')
-rw-r--r--arch/powerpc/boot/crt0.S21
1 files changed, 13 insertions, 8 deletions
diff --git a/arch/powerpc/boot/crt0.S b/arch/powerpc/boot/crt0.S
index d2f2ace56cd3..e0192c26037b 100644
--- a/arch/powerpc/boot/crt0.S
+++ b/arch/powerpc/boot/crt0.S
@@ -12,17 +12,23 @@
#include "ppc_asm.h"
.text
+ /* a procedure descriptor used when booting this as a COFF file */
+_zimage_start_opd:
+ .long _zimage_start, 0, 0, 0
+
.globl _zimage_start
_zimage_start:
+ /* Work out the offset between the address we were linked at
+ and the address where we're running. */
bl 1f
-
-1:
- mflr r0
+1: mflr r0
lis r9,1b@ha
addi r9,r9,1b@l
subf. r0,r9,r0
- beq 3f
+ beq 3f /* if running at same address as linked */
+ /* The .got2 section contains a list of addresses, so add
+ the address offset onto each entry. */
lis r9,__got2_start@ha
addi r9,r9,__got2_start@l
lis r8,__got2_end@ha
@@ -32,15 +38,14 @@ _zimage_start:
srwi. r8,r8,2
mtctr r8
add r9,r0,r9
-2:
- lwz r8,0(r9)
+2: lwz r8,0(r9)
add r8,r8,r0
stw r8,0(r9)
addi r9,r9,4
bdnz 2b
-3:
- lis r9,_start@h
+ /* Do a cache flush for our text, in case OF didn't */
+3: lis r9,_start@h
add r9,r0,r9
lis r8,_etext@ha
addi r8,r8,_etext@l