powerpc: refactor memchr, memrchr, and rawmemchr IFUNC.

Clean up the IFUNC implementations for powerpc in order to remove
unneeded macro definitions.

Tested on ppc64le with and without --disable-multi-arch flag.

	* sysdeps/powerpc/powerpc64/multiarch/memchr-power7.S: Define the
	implementation-specific function name and remove unneeded macros
	definition.
	* sysdeps/powerpc/powerpc64/multiarch/memrchr-power7.S: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/rawmemchr-power7.S: Likewise.
	* sysdeps/powerpc/powerpc64/power7/memchr.S: Set a default
	function name if not defined and pass as parameter to macros
	accordingly.
	* sysdeps/powerpc/powerpc64/power7/memrchr.S: Likewise.
	* sysdeps/powerpc/powerpc64/power7/rawmemchr.S: Likewise.

7 files changed, 32 insertions, 48 deletions

diff --git a/ChangeLog b/ChangeLog
index 7c0ce8964f..48187ba927 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,16 @@
 2017-04-11  Wainer dos Santos Moschetta  <wainersm@linux.vnet.ibm.com>
 
+	* sysdeps/powerpc/powerpc64/multiarch/memchr-power7.S: Define the
+	implementation-specific function name and remove unneeded macros
+	definition.
+	* sysdeps/powerpc/powerpc64/multiarch/memrchr-power7.S: Likewise.
+	* sysdeps/powerpc/powerpc64/multiarch/rawmemchr-power7.S: Likewise.
+	* sysdeps/powerpc/powerpc64/power7/memchr.S: Set a default
+	function name if not defined and pass as parameter to macros
+	accordingly.
+	* sysdeps/powerpc/powerpc64/power7/memrchr.S: Likewise.
+	* sysdeps/powerpc/powerpc64/power7/rawmemchr.S: Likewise.
+
 	* sysdeps/powerpc/powerpc64/multiarch/memset-power4.S: Define the
 	implementation-specific function name and remove unneeded macros
 	definition.
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memchr-power7.S b/sysdeps/powerpc/powerpc64/multiarch/memchr-power7.S
index 5d783abfcc..fedca9c997 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/memchr-power7.S
+++ b/sysdeps/powerpc/powerpc64/multiarch/memchr-power7.S
@@ -18,20 +18,7 @@
 
 #include <sysdep.h>
 
-#undef ENTRY
-#define ENTRY(name)						\
-  .section ".text";						\
-  ENTRY_2(__memchr_power7)					\
-  .align ALIGNARG(2);						\
-  BODY_LABEL(__memchr_power7):					\
-  cfi_startproc;						\
-  LOCALENTRY(__memchr_power7)
-
-#undef END
-#define END(name)						\
-  cfi_endproc;							\
-  TRACEBACK(__memchr_power7)					\
-  END_2(__memchr_power7)
+#define MEMCHR __memchr_power7
 
 #undef libc_hidden_builtin_def
 #define libc_hidden_builtin_def(name)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/memrchr-power7.S b/sysdeps/powerpc/powerpc64/multiarch/memrchr-power7.S
index 9ee6a3b90a..052aa732ba 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/memrchr-power7.S
+++ b/sysdeps/powerpc/powerpc64/multiarch/memrchr-power7.S
@@ -18,20 +18,7 @@
 
 #include <sysdep.h>
 
-#undef ENTRY
-#define ENTRY(name)						\
-  .section ".text";						\
-  ENTRY_2(__memrchr_power7)					\
-  .align ALIGNARG(2);						\
-  BODY_LABEL(__memrchr_power7):					\
-  cfi_startproc;						\
-  LOCALENTRY(__memrchr_power7)
-
-#undef END
-#define END(name)						\
-  cfi_endproc;							\
-  TRACEBACK(__memrchr_power7)					\
-  END_2(__memrchr_power7)
+#define MEMRCHR __memrchr_power7
 
 #undef libc_hidden_builtin_def
 #define libc_hidden_builtin_def(name)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/rawmemchr-power7.S b/sysdeps/powerpc/powerpc64/multiarch/rawmemchr-power7.S
index ad2fd80647..d79d72820c 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/rawmemchr-power7.S
+++ b/sysdeps/powerpc/powerpc64/multiarch/rawmemchr-power7.S
@@ -18,19 +18,6 @@
 
 #include <sysdep.h>
 
-#undef ENTRY
-#define ENTRY(name)						\
-  .section ".text";						\
-  ENTRY_2(__rawmemchr_power7)					\
-  .align ALIGNARG(2);						\
-  BODY_LABEL(__rawmemchr_power7):				\
-  cfi_startproc;						\
-  LOCALENTRY(__rawmemchr_power7)
-
-#undef END
-#define END(name)						\
-  cfi_endproc;							\
-  TRACEBACK(__rawmemchr_power7)					\
-  END_2(__rawmemchr_power7)
+#define RAWMEMCHR __rawmemchr_power7
 
 #include <sysdeps/powerpc/powerpc64/power7/rawmemchr.S>
diff --git a/sysdeps/powerpc/powerpc64/power7/memchr.S b/sysdeps/powerpc/powerpc64/power7/memchr.S
index 6ef665f2eb..5e9707aa02 100644
--- a/sysdeps/powerpc/powerpc64/power7/memchr.S
+++ b/sysdeps/powerpc/powerpc64/power7/memchr.S
@@ -20,8 +20,12 @@
 #include <sysdep.h>
 
 /* int [r3] memchr (char *s [r3], int byte [r4], int size [r5])  */
+
+#ifndef MEMCHR
+# define MEMCHR __memchr
+#endif
 	.machine  power7
-ENTRY (__memchr)
+ENTRY (MEMCHR)
 	CALL_MCOUNT 3
 	dcbt	0,r3
 	clrrdi  r8,r3,3
@@ -190,6 +194,6 @@ L(small_range):
 	bne	cr6,L(done)
 	blr
 
-END (__memchr)
+END (MEMCHR)
 weak_alias (__memchr, memchr)
 libc_hidden_builtin_def (memchr)
diff --git a/sysdeps/powerpc/powerpc64/power7/memrchr.S b/sysdeps/powerpc/powerpc64/power7/memrchr.S
index 4e86400437..4276768915 100644
--- a/sysdeps/powerpc/powerpc64/power7/memrchr.S
+++ b/sysdeps/powerpc/powerpc64/power7/memrchr.S
@@ -20,8 +20,12 @@
 #include <sysdep.h>
 
 /* int [r3] memrchr (char *s [r3], int byte [r4], int size [r5])  */
+
+#ifndef MEMRCHR
+# define MEMRCHR __memrchr
+#endif
 	.machine  power7
-ENTRY (__memrchr)
+ENTRY (MEMRCHR)
 	CALL_MCOUNT 3
 	add	r7,r3,r5      /* Calculate the last acceptable address.  */
 	neg	r0,r7
@@ -192,6 +196,6 @@ L(loop_small):
 	bne	L(loop_small)
 	blr
 
-END (__memrchr)
+END (MEMRCHR)
 weak_alias (__memrchr, memrchr)
 libc_hidden_builtin_def (memrchr)
diff --git a/sysdeps/powerpc/powerpc64/power7/rawmemchr.S b/sysdeps/powerpc/powerpc64/power7/rawmemchr.S
index b99ad62b0d..48afb75943 100644
--- a/sysdeps/powerpc/powerpc64/power7/rawmemchr.S
+++ b/sysdeps/powerpc/powerpc64/power7/rawmemchr.S
@@ -20,8 +20,12 @@
 #include <sysdep.h>
 
 /* int [r3] rawmemchr (void *s [r3], int c [r4])  */
+
+#ifndef RAWMEMCHR
+# define RAWMEMCHR __rawmemchr
+#endif
 	.machine  power7
-ENTRY (__rawmemchr)
+ENTRY (RAWMEMCHR)
 	CALL_MCOUNT 2
 	dcbt	0,r3
 	clrrdi	r8,r3,3	      /* Align the address to doubleword boundary.  */
@@ -106,6 +110,6 @@ L(done):
 	srdi	r0,r0,3	      /* Convert leading zeros to bytes.  */
 	add	r3,r8,r0      /* Return address of the matching char.  */
 	blr
-END (__rawmemchr)
+END (RAWMEMCHR)
 weak_alias (__rawmemchr,rawmemchr)
 libc_hidden_builtin_def (__rawmemchr)