powerpc: refactor strcasestr and strstr 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/strcasestr-power8.S: Define the
	strcasestr implementation name and remove unneeded macros definition.
	* sysdeps/powerpc/powerpc64/multiarch/strstr-power7.S: Define
	strstr implementation name and remove unneeded macros definition.
	* sysdeps/powerpc/powerpc64/power7/strstr.S: Set a default function
	name if not defined and pass as parameter to macros accordingly.
	* sysdeps/powerpc/powerpc64/power8/strcasestr.S: Likewise.

5 files changed, 22 insertions, 34 deletions

diff --git a/ChangeLog b/ChangeLog
index a02f848c5a..3b069a9209 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,13 @@
 2017-04-11  Wainer dos Santos Moschetta  <wainersm@linux.vnet.ibm.com>
 
+	* sysdeps/powerpc/powerpc64/multiarch/strcasestr-power8.S: Define the
+	strcasestr implementation name and remove unneeded macros definition.
+	* sysdeps/powerpc/powerpc64/multiarch/strstr-power7.S: Define
+	strstr implementation name and remove unneeded macros definition.
+	* sysdeps/powerpc/powerpc64/power7/strstr.S: Set a default function
+	name if not defined and pass as parameter to macros accordingly.
+	* sysdeps/powerpc/powerpc64/power8/strcasestr.S: Likewise.
+
 	* sysdeps/powerpc/powerpc64/multiarch/strchr-power7.S: Define the
 	implementation-specific function name and remove unneeded macros
 	definition.
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcasestr-power8.S b/sysdeps/powerpc/powerpc64/multiarch/strcasestr-power8.S
index 5a0eb9cd78..2cfb5ae77a 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strcasestr-power8.S
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcasestr-power8.S
@@ -18,21 +18,7 @@
 
 #include <sysdep.h>
 
-#undef EALIGN
-#define EALIGN(name, alignt, words)				\
-  .section ".text";						\
-  ENTRY_2(__strcasestr_power8)					\
-  .align ALIGNARG(alignt);					\
-  EALIGN_W_##words;						\
-  BODY_LABEL(__strcasestr_power8):				\
-  cfi_startproc;						\
-  LOCALENTRY(__strcasestr_power8)
-
-#undef END
-#define END(name)						\
-  cfi_endproc;							\
-  TRACEBACK(__strcasestr_power8)				\
-  END_2(__strcasestr_power8)
+#define STRCASESTR __strcasestr_power8
 
 #undef libc_hidden_builtin_def
 #define libc_hidden_builtin_def(name)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strstr-power7.S b/sysdeps/powerpc/powerpc64/multiarch/strstr-power7.S
index 5ac7b85650..3991df74a8 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strstr-power7.S
+++ b/sysdeps/powerpc/powerpc64/multiarch/strstr-power7.S
@@ -18,21 +18,7 @@
 
 #include <sysdep.h>
 
-#undef EALIGN
-#define EALIGN(name, alignt, words)				\
-  .section ".text";						\
-  ENTRY_2(__strstr_power7)					\
-  .align ALIGNARG(alignt);					\
-  EALIGN_W_##words;						\
-  BODY_LABEL(__strstr_power7):					\
-  cfi_startproc;						\
-  LOCALENTRY(__strstr_power7)
-
-#undef END
-#define END(name)						\
-  cfi_endproc;							\
-  TRACEBACK(__strstr_power7)					\
-  END_2(__strstr_power7)
+#define STRSTR __strstr_power7
 
 #undef libc_hidden_builtin_def
 #define libc_hidden_builtin_def(name)
diff --git a/sysdeps/powerpc/powerpc64/power7/strstr.S b/sysdeps/powerpc/powerpc64/power7/strstr.S
index 2a79b8bcc2..260db2ed6d 100644
--- a/sysdeps/powerpc/powerpc64/power7/strstr.S
+++ b/sysdeps/powerpc/powerpc64/power7/strstr.S
@@ -25,6 +25,10 @@
 
 #define ITERATIONS	64
 
+#ifndef STRSTR
+# define STRSTR strstr
+#endif
+
 #ifndef STRLEN
 /* For builds with no IFUNC support, local calls should be made to internal
    GLIBC symbol (created by libc_hidden_builtin_def).  */
@@ -55,7 +59,7 @@
 
 #define	FRAMESIZE	(FRAME_MIN_SIZE+32)
 	.machine  power7
-EALIGN (strstr, 4, 0)
+EALIGN (STRSTR, 4, 0)
 	CALL_MCOUNT 2
 	mflr	r0			/* Load link register LR to r0.  */
 	std	r31, -8(r1)		/* Save callers register r31.  */
@@ -513,5 +517,5 @@ L(end):
 	ld	r31, -8(r1)	/* Restore callers save register r31.  */
 	mtlr	r0		/* Branch to link register.  */
 	blr
-END (strstr)
+END (STRSTR)
 libc_hidden_builtin_def (strstr)
diff --git a/sysdeps/powerpc/powerpc64/power8/strcasestr.S b/sysdeps/powerpc/powerpc64/power8/strcasestr.S
index 86f1672893..6ac6572f3b 100644
--- a/sysdeps/powerpc/powerpc64/power8/strcasestr.S
+++ b/sysdeps/powerpc/powerpc64/power8/strcasestr.S
@@ -27,6 +27,10 @@
    fallback to default.  */
 #define ITERATIONS	64
 
+#ifndef STRCASESTR
+# define STRCASESTR __strcasestr
+#endif
+
 #ifndef STRLEN
 /* For builds without IFUNC support, local calls should be made to internal
    GLIBC symbol (created by libc_hidden_builtin_def).  */
@@ -81,7 +85,7 @@
 /* TODO: change this to .machine power8 when the minimum required binutils
    allows it.  */
 	.machine  power7
-EALIGN (__strcasestr, 4, 0)
+EALIGN (STRCASESTR, 4, 0)
 	CALL_MCOUNT 2
 	mflr	r0			/* Load link register LR to r0.  */
 	std	r31, -8(r1)		/* Save callers register r31.  */
@@ -527,7 +531,7 @@ L(end):
 	cfi_restore(r31)
 	mtlr	r0		/* Branch to link register.  */
 	blr
-END (__strcasestr)
+END (STRCASESTR)
 
 weak_alias (__strcasestr, strcasestr)
 libc_hidden_def (__strcasestr)