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[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>
This commit is contained in:
Olaf Hering 2005-11-17 22:09:02 +01:00 committed by Paul Mackerras
parent d2a3317097
commit 68643cfb87
1 changed files with 11 additions and 12 deletions
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23
arch/powerpc/boot/crt0.S
View File

@ -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