diff options
| author | Olaf Hering <olh@suse.de> | 2005-10-28 17:46:45 -0700 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2005-10-29 15:07:38 +1000 |
| commit | 9b0cbe97566dd7123eee0462d91703434fe61090 (patch) | |
| tree | 816d6f93e2b84741c891e5edd600c6fdab91b675 /arch/ppc64/boot/crt0.S | |
| parent | 06cf26beffc54bb43aebbefa60f84e0dffde3141 (diff) | |
[PATCH] ppc64 boot: use memset to clear bss
Use memset to clear bss, instead of own version.
Signed-off-by: Olaf Hering <olh@suse.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'arch/ppc64/boot/crt0.S')
| -rw-r--r-- | arch/ppc64/boot/crt0.S | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/arch/ppc64/boot/crt0.S b/arch/ppc64/boot/crt0.S index 3861e7f9cf1..da6618a865c 100644 --- a/arch/ppc64/boot/crt0.S +++ b/arch/ppc64/boot/crt0.S @@ -25,24 +25,5 @@ _start: sync isync - ## Clear out the BSS as per ANSI C requirements - - lis r7,_end@ha - addi r7,r7,_end@l # r7 = &_end - lis r8,__bss_start@ha # - addi r8,r8,__bss_start@l # r8 = &_bss_start - - ## Determine how large an area, in number of words, to clear - - subf r7,r8,r7 # r7 = &_end - &_bss_start + 1 - addi r7,r7,3 # r7 += 3 - srwi. r7,r7,2 # r7 = size in words. - beq 3f # If the size is zero, don't bother - addi r8,r8,-4 # r8 -= 4 - mtctr r7 # SPRN_CTR = number of words to clear - li r0,0 # r0 = 0 -2: stwu r0,4(r8) # Clear out a word - bdnz 2b # Keep clearing until done -3: b start |