[PATCH] ppc boot: replace string labels with numbers

Olaf Hering olh at suse.de
Fri Nov 18 08:09:02 EST 2005

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 at suse.de>

 arch/powerpc/boot/crt0.S |   23 +++++++++++------------
 1 files changed, 11 insertions(+), 12 deletions(-)

Index: linux-2.6.15-rc1-olh/arch/powerpc/boot/crt0.S
--- linux-2.6.15-rc1-olh.orig/arch/powerpc/boot/crt0.S
+++ linux-2.6.15-rc1-olh/arch/powerpc/boot/crt0.S
@@ -14,43 +14,42 @@
 	.globl	_zimage_start
-	bl	reloc_offset
+	bl	1f
 	mflr	r0
-	lis	r9,reloc_offset at ha
-	addi	r9,r9,reloc_offset at l
+	lis	r9,1b at ha
+	addi	r9,r9,1b at l
 	subf.	r0,r9,r0
-	beq	clear_caches
+	beq	3f
 	lis	r9,__got2_start at ha
 	addi	r9,r9,__got2_start at l
 	lis	r8,__got2_end at ha
 	addi	r8,r8,__got2_end at l
 	subf.	r8,r9,r8
-	beq	clear_caches
+	beq	3f
 	srwi.	r8,r8,2
 	mtctr	r8
 	add	r9,r0,r9
 	lwz	r8,0(r9)
 	add	r8,r8,r0
 	stw	r8,0(r9)
 	addi	r9,r9,4
-	bdnz	reloc_got2_loop
+	bdnz	2b
 	lis	r9,_start at h
 	add	r9,r0,r9
 	lis	r8,_etext at ha
 	addi	r8,r8,_etext at 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
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