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[PATCH 1/9] powerpc: refactor stpcpy, stpncpy, strcpy, and strncpy IFUNC.

From: Wainer dos Santos Moschetta <wainersm at linux dot vnet dot ibm dot com>
To: libc-alpha at sourceware dot org
Date: Mon, 3 Apr 2017 18:19:11 -0300
Subject: [PATCH 1/9] powerpc: refactor stpcpy, stpncpy, strcpy, and strncpy IFUNC.
Authentication-results: sourceware.org; auth=none
References: <cover.1491252969.git.wainersm@linux.vnet.ibm.com>
References: <cover.1491252969.git.wainersm@linux.vnet.ibm.com>

2017-04-03  Wainer dos Santos Moschetta  <wainersm@linux.vnet.ibm.com>

	* sysdeps/powerpc/powerpc64/multiarch/stpcpy-power8.S: Define the
	implementation-specific function name and remove unneeded macros definition.
	* sysdeps/powerpc/powerpc64/multiarch/stpncpy-power7.S: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/stpncpy-power8.S: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strcpy-power8.S: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strncpy-power7.S: Likewise.
	* sysdeps/powerpc/powerpc64/multiarch/strncpy-power8.S: Likewise.
	* sysdeps/powerpc/powerpc64/power7/strncpy.S: Set a default
	function name if not defined.
	* sysdeps/powerpc/powerpc64/power8/strcpy.S: Likewise.
	* sysdeps/powerpc/powerpc64/power8/strncpy.S: Likewise.
---
 sysdeps/powerpc/powerpc64/multiarch/stpcpy-power8.S  | 16 +---------------
 sysdeps/powerpc/powerpc64/multiarch/stpncpy-power7.S | 16 +---------------
 sysdeps/powerpc/powerpc64/multiarch/stpncpy-power8.S | 16 +---------------
 sysdeps/powerpc/powerpc64/multiarch/strcpy-power8.S  | 16 +---------------
 sysdeps/powerpc/powerpc64/multiarch/strncpy-power7.S | 16 +---------------
 sysdeps/powerpc/powerpc64/multiarch/strncpy-power8.S | 16 +---------------
 sysdeps/powerpc/powerpc64/power7/strncpy.S           | 14 +++++++++++---
 sysdeps/powerpc/powerpc64/power8/strcpy.S            | 14 +++++++++++---
 sysdeps/powerpc/powerpc64/power8/strncpy.S           | 14 +++++++++++---
 9 files changed, 39 insertions(+), 99 deletions(-)

diff --git a/sysdeps/powerpc/powerpc64/multiarch/stpcpy-power8.S b/sysdeps/powerpc/powerpc64/multiarch/stpcpy-power8.S
index a614b5b..9353471 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/stpcpy-power8.S
+++ b/sysdeps/powerpc/powerpc64/multiarch/stpcpy-power8.S
@@ -18,21 +18,7 @@
 
 #include <sysdep.h>
 
-#undef EALIGN
-#define EALIGN(name, alignt, words)				\
-  .section ".text";						\
-  ENTRY_2(__stpcpy_power8)					\
-  .align ALIGNARG(alignt);					\
-  EALIGN_W_##words;						\
-  BODY_LABEL(__stpcpy_power8):					\
-  cfi_startproc;						\
-  LOCALENTRY(__stpcpy_power8)
-
-#undef END
-#define END(name)						\
-  cfi_endproc;							\
-  TRACEBACK(__stpcpy_power8)					\
-  END_2(__stpcpy_power8)
+#define STPCPY __stpcpy_power8
 
 #undef libc_hidden_builtin_def
 #define libc_hidden_builtin_def(name)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/stpncpy-power7.S b/sysdeps/powerpc/powerpc64/multiarch/stpncpy-power7.S
index 6c88da3..6636b01 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/stpncpy-power7.S
+++ b/sysdeps/powerpc/powerpc64/multiarch/stpncpy-power7.S
@@ -20,21 +20,7 @@
 
 #define USE_AS_STPNCPY
 
-#undef EALIGN
-#define EALIGN(name, alignt, words)				\
-  .section ".text";						\
-  ENTRY_2(__stpncpy_power7)					\
-  .align ALIGNARG(alignt);					\
-  EALIGN_W_##words;						\
-  BODY_LABEL(__stpncpy_power7):					\
-  cfi_startproc;						\
-  LOCALENTRY(__stpncpy_power7)
-
-#undef END
-#define END(name)						\
-  cfi_endproc;							\
-  TRACEBACK(__stpncpy_power7)					\
-  END_2(__stpncpy_power7)
+#define STPNCPY __stpncpy_power7
 
 #undef libc_hidden_builtin_def
 #define libc_hidden_builtin_def(name)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/stpncpy-power8.S b/sysdeps/powerpc/powerpc64/multiarch/stpncpy-power8.S
index ff6d3dd..6ce706a 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/stpncpy-power8.S
+++ b/sysdeps/powerpc/powerpc64/multiarch/stpncpy-power8.S
@@ -20,21 +20,7 @@
 
 #define USE_AS_STPNCPY
 
-#undef EALIGN
-#define EALIGN(name, alignt, words)				\
-  .section ".text";						\
-  ENTRY_2(__stpncpy_power8)					\
-  .align ALIGNARG(alignt);					\
-  EALIGN_W_##words;						\
-  BODY_LABEL(__stpncpy_power8):					\
-  cfi_startproc;						\
-  LOCALENTRY(__stpncpy_power8)
-
-#undef END
-#define END(name)						\
-  cfi_endproc;							\
-  TRACEBACK(__stpncpy_power8)					\
-  END_2(__stpncpy_power8)
+#define STPNCPY __stpncpy_power8
 
 #undef libc_hidden_builtin_def
 #define libc_hidden_builtin_def(name)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strcpy-power8.S b/sysdeps/powerpc/powerpc64/multiarch/strcpy-power8.S
index 576d260..6c753b5 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strcpy-power8.S
+++ b/sysdeps/powerpc/powerpc64/multiarch/strcpy-power8.S
@@ -18,21 +18,7 @@
 
 #include <sysdep.h>
 
-#undef EALIGN
-#define EALIGN(name, alignt, words)				\
-  .section ".text";						\
-  ENTRY_2(__strcpy_power8)					\
-  .align ALIGNARG(alignt);					\
-  EALIGN_W_##words;						\
-  BODY_LABEL(__strcpy_power8):					\
-  cfi_startproc;						\
-  LOCALENTRY(__strcpy_power8)
-
-#undef END
-#define END(name)						\
-  cfi_endproc;							\
-  TRACEBACK(__strcpy_power8)					\
-  END_2(__strcpy_power8)
+#define STRCPY __strcpy_power8
 
 #undef libc_hidden_builtin_def
 #define libc_hidden_builtin_def(name)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncpy-power7.S b/sysdeps/powerpc/powerpc64/multiarch/strncpy-power7.S
index 5387e49..03f7f83 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strncpy-power7.S
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncpy-power7.S
@@ -18,21 +18,7 @@
 
 #include <sysdep.h>
 
-#undef EALIGN
-#define EALIGN(name, alignt, words)				\
-  .section ".text";						\
-  ENTRY_2(__strncpy_power7)					\
-  .align ALIGNARG(alignt);					\
-  EALIGN_W_##words;						\
-  BODY_LABEL(__strncpy_power7):					\
-  cfi_startproc;						\
-  LOCALENTRY(__strncpy_power7)
-
-#undef END
-#define END(name)						\
-  cfi_endproc;							\
-  TRACEBACK(__strncpy_power7)					\
-  END_2(__strncpy_power7)
+#define STRNCPY __strncpy_power7
 
 #undef libc_hidden_builtin_def
 #define libc_hidden_builtin_def(name)
diff --git a/sysdeps/powerpc/powerpc64/multiarch/strncpy-power8.S b/sysdeps/powerpc/powerpc64/multiarch/strncpy-power8.S
index 37902cf..17117eb 100644
--- a/sysdeps/powerpc/powerpc64/multiarch/strncpy-power8.S
+++ b/sysdeps/powerpc/powerpc64/multiarch/strncpy-power8.S
@@ -18,21 +18,7 @@
 
 #include <sysdep.h>
 
-#undef EALIGN
-#define EALIGN(name, alignt, words)				\
-  .section ".text";						\
-  ENTRY_2(__strncpy_power8)					\
-  .align ALIGNARG(alignt);					\
-  EALIGN_W_##words;						\
-  BODY_LABEL(__strncpy_power8):					\
-  cfi_startproc;						\
-  LOCALENTRY(__strncpy_power8)
-
-#undef END
-#define END(name)						\
-  cfi_endproc;							\
-  TRACEBACK(__strncpy_power8)					\
-  END_2(__strncpy_power8)
+#define STRNCPY __strncpy_power8
 
 #undef libc_hidden_builtin_def
 #define libc_hidden_builtin_def(name)
diff --git a/sysdeps/powerpc/powerpc64/power7/strncpy.S b/sysdeps/powerpc/powerpc64/power7/strncpy.S
index 98aabda..0224f74 100644
--- a/sysdeps/powerpc/powerpc64/power7/strncpy.S
+++ b/sysdeps/powerpc/powerpc64/power7/strncpy.S
@@ -40,10 +40,18 @@
       memset.  */
 
 #ifdef USE_AS_STPNCPY
-# define FUNC_NAME __stpncpy
+# ifndef STPNCPY
+#  define FUNC_NAME __stpncpy
+# else
+#  define FUNC_NAME STPNCPY
+# endif
 #else
-# define FUNC_NAME strncpy
-#endif
+# ifndef STRNCPY
+#  define FUNC_NAME strncpy
+# else
+#  define FUNC_NAME STRNCPY
+# endif
+#endif  /* !USE_AS_STPNCPY  */
 
 #define		FRAMESIZE	(FRAME_MIN_SIZE+32)
 
diff --git a/sysdeps/powerpc/powerpc64/power8/strcpy.S b/sysdeps/powerpc/powerpc64/power8/strcpy.S
index 27440cd..7f2cee4 100644
--- a/sysdeps/powerpc/powerpc64/power8/strcpy.S
+++ b/sysdeps/powerpc/powerpc64/power8/strcpy.S
@@ -19,10 +19,18 @@
 #include <sysdep.h>
 
 #ifdef USE_AS_STPCPY
-# define FUNC_NAME __stpcpy
+# ifndef STPCPY
+#   define FUNC_NAME __stpcpy
+# else
+#   define FUNC_NAME STPCPY
+# endif
 #else
-# define FUNC_NAME strcpy
-#endif
+# ifndef STRCPY
+#  define FUNC_NAME strcpy
+# else
+#  define FUNC_NAME STRCPY
+# endif
+#endif  /* !USE_AS_STPCPY  */
 
 /* Implements the function
 
diff --git a/sysdeps/powerpc/powerpc64/power8/strncpy.S b/sysdeps/powerpc/powerpc64/power8/strncpy.S
index 622a55d..6d40f30 100644
--- a/sysdeps/powerpc/powerpc64/power8/strncpy.S
+++ b/sysdeps/powerpc/powerpc64/power8/strncpy.S
@@ -19,10 +19,18 @@
 #include <sysdep.h>
 
 #ifdef USE_AS_STPNCPY
-# define FUNC_NAME __stpncpy
+# ifndef STPNCPY
+#   define FUNC_NAME __stpncpy
+# else
+#   define FUNC_NAME STPNCPY
+# endif
 #else
-# define FUNC_NAME strncpy
-#endif
+# ifndef STRNCPY
+#  define FUNC_NAME strncpy
+# else
+#  define FUNC_NAME STRNCPY
+# endif
+#endif  /* !USE_AS_STPNCPY  */
 
 #ifndef MEMSET
 /* For builds without IFUNC support, local calls should be made to internal
-- 
1.9.1

References:
- [PATCH 0/9] powerpc: cleanup IFUNC implementations.
  - From: Wainer dos Santos Moschetta

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