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authorStephen Rothwell <sfr@canb.auug.org.au>2005-10-31 18:39:20 +1100
committerStephen Rothwell <sfr@canb.auug.org.au>2005-11-01 14:34:17 +1100
commit5015b49448cbe5352b9cc232333ab26f3e608a07 (patch)
tree77267c0fbc585ee6988a33ffec49030c6c2b5030 /arch/ppc64
parent2df5e8bcca53e528a78ee0e3b114d0d21dd6d043 (diff)
powerpc: fix __strnlen_user in merge tree
Change USER/KERNEL_DS so that the merged version of __strnlen_user can be used which allows us to complete the removal of arch/ppc64/lib/. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Diffstat (limited to 'arch/ppc64')
-rw-r--r--arch/ppc64/Makefile1
-rw-r--r--arch/ppc64/lib/Makefile5
-rw-r--r--arch/ppc64/lib/string.S179
3 files changed, 0 insertions, 185 deletions
diff --git a/arch/ppc64/Makefile b/arch/ppc64/Makefile
index fdbd6f44adc..a55a82d145d 100644
--- a/arch/ppc64/Makefile
+++ b/arch/ppc64/Makefile
@@ -86,7 +86,6 @@ head-y := arch/ppc64/kernel/head.o
head-y += arch/powerpc/kernel/fpu.o
head-y += arch/powerpc/kernel/entry_64.o
-libs-y += arch/ppc64/lib/
core-y += arch/ppc64/kernel/ arch/powerpc/kernel/
core-y += arch/powerpc/mm/
core-y += arch/powerpc/sysdev/
diff --git a/arch/ppc64/lib/Makefile b/arch/ppc64/lib/Makefile
deleted file mode 100644
index 42d5295bf34..00000000000
--- a/arch/ppc64/lib/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for ppc64-specific library files..
-#
-
-lib-y := string.o
diff --git a/arch/ppc64/lib/string.S b/arch/ppc64/lib/string.S
deleted file mode 100644
index e21a0038a4d..00000000000
--- a/arch/ppc64/lib/string.S
+++ /dev/null
@@ -1,179 +0,0 @@
-/*
- * String handling functions for PowerPC.
- *
- * Copyright (C) 1996 Paul Mackerras.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <asm/processor.h>
-#include <asm/errno.h>
-#include <asm/ppc_asm.h>
-
-_GLOBAL(strcpy)
- addi r5,r3,-1
- addi r4,r4,-1
-1: lbzu r0,1(r4)
- cmpwi 0,r0,0
- stbu r0,1(r5)
- bne 1b
- blr
-
-_GLOBAL(strncpy)
- cmpwi 0,r5,0
- beqlr
- mtctr r5
- addi r6,r3,-1
- addi r4,r4,-1
-1: lbzu r0,1(r4)
- cmpwi 0,r0,0
- stbu r0,1(r6)
- bdnzf 2,1b /* dec ctr, branch if ctr != 0 && !cr0.eq */
- blr
-
-_GLOBAL(strcat)
- addi r5,r3,-1
- addi r4,r4,-1
-1: lbzu r0,1(r5)
- cmpwi 0,r0,0
- bne 1b
- addi r5,r5,-1
-1: lbzu r0,1(r4)
- cmpwi 0,r0,0
- stbu r0,1(r5)
- bne 1b
- blr
-
-_GLOBAL(strcmp)
- addi r5,r3,-1
- addi r4,r4,-1
-1: lbzu r3,1(r5)
- cmpwi 1,r3,0
- lbzu r0,1(r4)
- subf. r3,r0,r3
- beqlr 1
- beq 1b
- blr
-
-_GLOBAL(strlen)
- addi r4,r3,-1
-1: lbzu r0,1(r4)
- cmpwi 0,r0,0
- bne 1b
- subf r3,r3,r4
- blr
-
-_GLOBAL(memcmp)
- cmpwi 0,r5,0
- ble- 2f
- mtctr r5
- addi r6,r3,-1
- addi r4,r4,-1
-1: lbzu r3,1(r6)
- lbzu r0,1(r4)
- subf. r3,r0,r3
- bdnzt 2,1b
- blr
-2: li r3,0
- blr
-
-_GLOBAL(memchr)
- cmpwi 0,r5,0
- ble- 2f
- mtctr r5
- addi r3,r3,-1
-1: lbzu r0,1(r3)
- cmpw 0,r0,r4
- bdnzf 2,1b
- beqlr
-2: li r3,0
- blr
-
-_GLOBAL(__clear_user)
- addi r6,r3,-4
- li r3,0
- li r5,0
- cmplwi 0,r4,4
- blt 7f
- /* clear a single word */
-11: stwu r5,4(r6)
- beqlr
- /* clear word sized chunks */
- andi. r0,r6,3
- add r4,r0,r4
- subf r6,r0,r6
- srwi r0,r4,2
- andi. r4,r4,3
- mtctr r0
- bdz 7f
-1: stwu r5,4(r6)
- bdnz 1b
- /* clear byte sized chunks */
-7: cmpwi 0,r4,0
- beqlr
- mtctr r4
- addi r6,r6,3
-8: stbu r5,1(r6)
- bdnz 8b
- blr
-90: mr r3,r4
- blr
-91: mfctr r3
- slwi r3,r3,2
- add r3,r3,r4
- blr
-92: mfctr r3
- blr
-
- .section __ex_table,"a"
- .align 3
- .llong 11b,90b
- .llong 1b,91b
- .llong 8b,92b
- .text
-
-/* r3 = dst, r4 = src, r5 = count */
-_GLOBAL(__strncpy_from_user)
- addi r6,r3,-1
- addi r4,r4,-1
- cmpwi 0,r5,0
- beq 2f
- mtctr r5
-1: lbzu r0,1(r4)
- cmpwi 0,r0,0
- stbu r0,1(r6)
- bdnzf 2,1b /* dec ctr, branch if ctr != 0 && !cr0.eq */
- beq 3f
-2: addi r6,r6,1
-3: subf r3,r3,r6
- blr
-99: li r3,-EFAULT
- blr
-
- .section __ex_table,"a"
- .align 3
- .llong 1b,99b
- .text
-
-/* r3 = str, r4 = len (> 0) */
-_GLOBAL(__strnlen_user)
- addi r7,r3,-1
- mtctr r4 /* ctr = len */
-1: lbzu r0,1(r7) /* get next byte */
- cmpwi 0,r0,0
- bdnzf 2,1b /* loop if --ctr != 0 && byte != 0 */
- addi r7,r7,1
- subf r3,r3,r7 /* number of bytes we have looked at */
- beqlr /* return if we found a 0 byte */
- cmpw 0,r3,r4 /* did we look at all len bytes? */
- blt 99f /* if not, must have hit top */
- addi r3,r4,1 /* return len + 1 to indicate no null found */
- blr
-99: li r3,0 /* bad address, return 0 */
- blr
-
- .section __ex_table,"a"
- .align 3
- .llong 1b,99b