[PATCH] ppc boot: replace string labels with numbers
Replacing the string labels with numbers saves 117 bytes in the final zImage.
These local labels are not discared.
Signed-off-by: Olaf Hering <olh@suse.de>
arch/powerpc/boot/crt0.S | 23 +++++++++++------------
1 files changed, 11 insertions(+), 12 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/boot/crt0.S b/arch/powerpc/boot/crt0.S
index 9cc4422..d2f2ace 100644
--- a/arch/powerpc/boot/crt0.S
+++ b/arch/powerpc/boot/crt0.S
@@ -14,43 +14,42 @@
.text
.globl _zimage_start
_zimage_start:
- bl reloc_offset
+ bl 1f
-reloc_offset:
+1:
mflr r0
- lis r9,reloc_offset@ha
- addi r9,r9,reloc_offset@l
+ lis r9,1b@ha
+ addi r9,r9,1b@l
subf. r0,r9,r0
- beq clear_caches
+ beq 3f
-reloc_got2:
lis r9,__got2_start@ha
addi r9,r9,__got2_start@l
lis r8,__got2_end@ha
addi r8,r8,__got2_end@l
subf. r8,r9,r8
- beq clear_caches
+ beq 3f
srwi. r8,r8,2
mtctr r8
add r9,r0,r9
-reloc_got2_loop:
+2:
lwz r8,0(r9)
add r8,r8,r0
stw r8,0(r9)
addi r9,r9,4
- bdnz reloc_got2_loop
+ bdnz 2b
-clear_caches:
+3:
lis r9,_start@h
add r9,r0,r9
lis r8,_etext@ha
addi r8,r8,_etext@l
add r8,r0,r8
-1: dcbf r0,r9
+4: dcbf r0,r9
icbi r0,r9
addi r9,r9,0x20
cmplwi 0,r9,8
- blt 1b
+ blt 4b
sync
isync