sparc: Unify strlen assembler.

Use the new asm/asm.h header to help commonize the
strlen assembler between 32-bit and 64-bit

While we're here, use proper linux/linkage.h macros
instead of by-hand stuff.

Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 21 insertions, 102 deletions

diff --git a/arch/sparc/lib/Makefile b/arch/sparc/lib/Makefile
index 05ae5c945e3..0db2c61a0f7 100644
--- a/arch/sparc/lib/Makefile
+++ b/arch/sparc/lib/Makefile
@@ -6,7 +6,7 @@ ccflags-y := -Werror
 
 lib-$(CONFIG_SPARC32) += mul.o rem.o sdiv.o udiv.o umul.o urem.o ashrdi3.o
 lib-$(CONFIG_SPARC32) += memcpy.o memset.o
-lib-y                 += strlen_$(BITS).o
+lib-y                 += strlen.o
 lib-y                 += checksum_$(BITS).o
 lib-$(CONFIG_SPARC32) += blockops.o
 lib-y                 += memscan_$(BITS).o memcmp_$(BITS).o strncmp_$(BITS).o
diff --git a/arch/sparc/lib/strlen_64.S b/arch/sparc/lib/strlen.S
index e9ba1920d81..536f83507fb 100644
--- a/arch/sparc/lib/strlen_64.S
+++ b/arch/sparc/lib/strlen.S
@@ -1,37 +1,38 @@
-/* strlen.S: Sparc64 optimized strlen code
+/* strlen.S: Sparc optimized strlen code
  * Hand optimized from GNU libc's strlen
  * Copyright (C) 1991,1996 Free Software Foundation
- * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1996,2008 David S. Miller (davem@davemloft.net)
  * Copyright (C) 1996, 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
  */
 
+#include <linux/linkage.h>
+#include <asm/asm.h>
+
 #define LO_MAGIC 0x01010101
 #define HI_MAGIC 0x80808080
 
-        .align  32
-        .globl  strlen
-        .type   strlen,#function
-strlen:
+        .text
+ENTRY(strlen)
         mov     %o0, %o1
         andcc   %o0, 3, %g0
-        be,pt   %icc, 9f
+        BRANCH32(be, pt, 9f)
          sethi  %hi(HI_MAGIC), %o4
         ldub    [%o0], %o5
-        brz,pn  %o5, 11f
+        BRANCH_REG_ZERO(pn, %o5, 11f)
          add    %o0, 1, %o0
         andcc   %o0, 3, %g0
-        be,pn   %icc, 4f
+        BRANCH32(be, pn, 4f)
          or     %o4, %lo(HI_MAGIC), %o3
         ldub    [%o0], %o5
-        brz,pn  %o5, 12f
+        BRANCH_REG_ZERO(pn, %o5, 12f)
          add    %o0, 1, %o0
         andcc   %o0, 3, %g0
-        be,pt   %icc, 5f
+        BRANCH32(be, pt, 5f)
          sethi  %hi(LO_MAGIC), %o4
         ldub    [%o0], %o5
-        brz,pn  %o5, 13f
+        BRANCH_REG_ZERO(pn, %o5, 13f)
          add    %o0, 1, %o0
-        ba,pt   %icc, 8f
+        BRANCH32(ba, pt, 8f)
          or     %o4, %lo(LO_MAGIC), %o2
 9:
         or      %o4, %lo(HI_MAGIC), %o3
@@ -44,24 +45,24 @@ strlen:
 2:
         sub     %o5, %o2, %o4
         andcc   %o4, %o3, %g0
-        be,pt   %icc, 8b
+        BRANCH32(be, pt, 8b)
          add    %o0, 4, %o0
 
         /* Check every byte. */
         srl     %o5, 24, %g7
         andcc   %g7, 0xff, %g0
-        be,pn   %icc, 1f
+        BRANCH32(be, pn, 1f)
          add    %o0, -4, %o4
         srl     %o5, 16, %g7
         andcc   %g7, 0xff, %g0
-        be,pn   %icc, 1f
+        BRANCH32(be, pn, 1f)
          add    %o4, 1, %o4
         srl     %o5, 8, %g7
         andcc   %g7, 0xff, %g0
-        be,pn   %icc, 1f
+        BRANCH32(be, pn, 1f)
          add    %o4, 1, %o4
         andcc   %o5, 0xff, %g0
-        bne,a,pt %icc, 2b
+        BRANCH32_ANNUL(bne, pt, 2b)
          ld     [%o0], %o5
         add     %o4, 1, %o4
 1:
@@ -76,5 +77,4 @@ strlen:
 13:
         retl
          mov    2, %o0
-
-        .size   strlen, .-strlen
+ENDPROC(strlen)
diff --git a/arch/sparc/lib/strlen_32.S b/arch/sparc/lib/strlen_32.S
deleted file mode 100644
index ed9a763368c..00000000000
--- a/arch/sparc/lib/strlen_32.S
+++ /dev/null
@@ -1,81 +0,0 @@
-/* strlen.S: Sparc optimized strlen code
- * Hand optimized from GNU libc's strlen
- * Copyright (C) 1991,1996 Free Software Foundation
- * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
- * Copyright (C) 1996 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- */
-
-#define LO_MAGIC 0x01010101
-#define HI_MAGIC 0x80808080
-
-0:
-        ldub    [%o0], %o5
-        cmp     %o5, 0
-        be      1f
-         add    %o0, 1, %o0
-        andcc   %o0, 3, %g0
-        be      4f
-         or     %o4, %lo(HI_MAGIC), %o3
-        ldub    [%o0], %o5
-        cmp     %o5, 0
-        be      2f
-         add    %o0, 1, %o0
-        andcc   %o0, 3, %g0
-        be      5f
-         sethi  %hi(LO_MAGIC), %o4
-        ldub    [%o0], %o5
-        cmp     %o5, 0
-        be      3f
-         add    %o0, 1, %o0
-        b       8f
-         or     %o4, %lo(LO_MAGIC), %o2
-1:
-        retl
-         mov    0, %o0
-2:
-        retl
-         mov    1, %o0
-3:
-        retl
-         mov    2, %o0
-
-        .align 4
-        .global strlen
-strlen:
-        mov     %o0, %o1
-        andcc   %o0, 3, %g0
-        bne     0b
-         sethi  %hi(HI_MAGIC), %o4
-        or      %o4, %lo(HI_MAGIC), %o3
-4:
-        sethi   %hi(LO_MAGIC), %o4
-5:
-        or      %o4, %lo(LO_MAGIC), %o2
-8:
-        ld      [%o0], %o5
-2:
-        sub     %o5, %o2, %o4
-        andcc   %o4, %o3, %g0
-        be      8b
-         add    %o0, 4, %o0
-
-        /* Check every byte. */
-        srl     %o5, 24, %g5
-        andcc   %g5, 0xff, %g0
-        be      1f
-         add    %o0, -4, %o4
-        srl     %o5, 16, %g5
-        andcc   %g5, 0xff, %g0
-        be      1f
-         add    %o4, 1, %o4
-        srl     %o5, 8, %g5
-        andcc   %g5, 0xff, %g0
-        be      1f
-         add    %o4, 1, %o4
-        andcc   %o5, 0xff, %g0
-        bne,a   2b
-         ld     [%o0], %o5
-        add     %o4, 1, %o4
-1:
-        retl
-         sub    %o4, %o1, %o0