PowerPC: Fix --disable-multi-arch builds

This patch fixes some powerpc32 and powerpc64 builds with
--disable-multi-arch option along with different --with-cpu=powerN.
It cleanups the Implies directories by removing the multiarch
folder for non multiarch config and also fixing two assembly
implementations: powerpc64/power7/strncat.S that is calling the
wrong strlen; and power8/fpu/s_isnan.S that misses the hidden_def and
weak_alias directives.

It is a backport of de21c33c068c8e39afb5711613a7c083c11ce6a1.

11 files changed, 31 insertions, 6 deletions

diff --git a/ChangeLog b/ChangeLog
index 0013bcb37b..2b48b1f12d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,20 @@
+2014-06-06  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
+
+	* sysdeps/powerpc/powerpc32/power6x/fpu/Implies: New file.
+	* sysdeps/powerpc/powerpc64/power6x/fpu/Implies: new file.
+	* sysdeps/powerpc/powerpc64/power6x/multiarch/Implies: New file.
+	* sysdeps/powerpc/powerpc64/power5+/fpu/Implies: Remove multiarch
+	imply folder.
+	* sysdeps/powerpc/powerpc64/power5/fpu/Implies: Likewise.
+	* sysdeps/powerpc/powerpc64/power7/fpu/Implies: Likewise.
+	* sysdeps/powerpc/powerpc64/power8/fpu/Implies: Likewise.
+	* sysdeps/powerpc/powerpc64/power6x/fpu/multiarch/Implies: Adjust
+	correct imply path.
+	* sysdeps/powerpc/powerpc64/power7/strncat.S (STRLEN): Define correct
+	strlen symbol for non multi-arch builds.
+	* sysdeps/powerpc/powerpc64/power8/fpu/s_isnan.S (__isnan): Add
+	missing hidden_def and weak_alias.
+
 2014-05-26  Adhemerval Zanella  <azanella@linux.vnet.ibm.com>
 
 	* sysdeps/powerpc/powerpc32/power4/memset.S (memset): Replace insrdi
diff --git a/sysdeps/powerpc/powerpc32/power6x/fpu/Implies b/sysdeps/powerpc/powerpc32/power6x/fpu/Implies
new file mode 100644
index 0000000000..d53ce2573c
--- /dev/null
+++ b/sysdeps/powerpc/powerpc32/power6x/fpu/Implies
@@ -0,0 +1 @@
+powerpc/powerpc32/power6/fpu
diff --git a/sysdeps/powerpc/powerpc64/power5+/fpu/Implies b/sysdeps/powerpc/powerpc64/power5+/fpu/Implies
index c0e67848e2..f00c50fb49 100644
--- a/sysdeps/powerpc/powerpc64/power5+/fpu/Implies
+++ b/sysdeps/powerpc/powerpc64/power5+/fpu/Implies
@@ -1 +1 @@
-powerpc/powerpc64/power5/fpu/multiarch
+powerpc/powerpc64/power5/fpu
diff --git a/sysdeps/powerpc/powerpc64/power5/fpu/Implies b/sysdeps/powerpc/powerpc64/power5/fpu/Implies
index 3740d050a6..6b8c23efa6 100644
--- a/sysdeps/powerpc/powerpc64/power5/fpu/Implies
+++ b/sysdeps/powerpc/powerpc64/power5/fpu/Implies
@@ -1 +1 @@
-powerpc/powerpc64/power4/fpu/multiarch
+powerpc/powerpc64/power4/fpu/
diff --git a/sysdeps/powerpc/powerpc64/power6x/fpu/Implies b/sysdeps/powerpc/powerpc64/power6x/fpu/Implies
new file mode 100644
index 0000000000..30fa17646e
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/power6x/fpu/Implies
@@ -0,0 +1 @@
+powerpc/powerpc64/power6/fpu
diff --git a/sysdeps/powerpc/powerpc64/power6x/fpu/multiarch/Implies b/sysdeps/powerpc/powerpc64/power6x/fpu/multiarch/Implies
index f54ff23500..410d289a6d 100644
--- a/sysdeps/powerpc/powerpc64/power6x/fpu/multiarch/Implies
+++ b/sysdeps/powerpc/powerpc64/power6x/fpu/multiarch/Implies
@@ -1 +1 @@
-sysdeps/powerpc/powerpc64/power6/fpu/multiarch
+powerpc/powerpc64/power6/fpu/multiarch
diff --git a/sysdeps/powerpc/powerpc64/power6x/multiarch/Implies b/sysdeps/powerpc/powerpc64/power6x/multiarch/Implies
new file mode 100644
index 0000000000..bf5d6171a5
--- /dev/null
+++ b/sysdeps/powerpc/powerpc64/power6x/multiarch/Implies
@@ -0,0 +1 @@
+powerpc/powerpc64/power6/multiarch
diff --git a/sysdeps/powerpc/powerpc64/power7/fpu/Implies b/sysdeps/powerpc/powerpc64/power7/fpu/Implies
index 410d289a6d..30fa17646e 100644
--- a/sysdeps/powerpc/powerpc64/power7/fpu/Implies
+++ b/sysdeps/powerpc/powerpc64/power7/fpu/Implies
@@ -1 +1 @@
-powerpc/powerpc64/power6/fpu/multiarch
+powerpc/powerpc64/power6/fpu
diff --git a/sysdeps/powerpc/powerpc64/power7/strncat.S b/sysdeps/powerpc/powerpc64/power7/strncat.S
index 1a1a95e030..e7e36a4de4 100644
--- a/sysdeps/powerpc/powerpc64/power7/strncat.S
+++ b/sysdeps/powerpc/powerpc64/power7/strncat.S
@@ -38,7 +38,9 @@
 #endif
 
 #ifndef STRLEN
-# define STRLEN   __strlen_ppc
+/* For builds with no IFUNC support, local calls should be made to internal
+   GLIBC symbol (created by libc_hidden_builtin_def).  */
+# define STRLEN   __GI_strlen
 #endif
 
 #define	FRAMESIZE	(FRAME_MIN_SIZE+32)
diff --git a/sysdeps/powerpc/powerpc64/power8/fpu/Implies b/sysdeps/powerpc/powerpc64/power8/fpu/Implies
index 7fd86fdf87..1187cdfb0a 100644
--- a/sysdeps/powerpc/powerpc64/power8/fpu/Implies
+++ b/sysdeps/powerpc/powerpc64/power8/fpu/Implies
@@ -1 +1 @@
-powerpc/powerpc64/power7/fpu/multiarch
+powerpc/powerpc64/power7/fpu/
diff --git a/sysdeps/powerpc/powerpc64/power8/fpu/s_isnan.S b/sysdeps/powerpc/powerpc64/power8/fpu/s_isnan.S
index b03c896acf..cf119e5c98 100644
--- a/sysdeps/powerpc/powerpc64/power8/fpu/s_isnan.S
+++ b/sysdeps/powerpc/powerpc64/power8/fpu/s_isnan.S
@@ -39,6 +39,9 @@ EALIGN (__isnan, 4, 0)
 	blr
 END (__isnan)
 
+hidden_def (__isnan)
+weak_alias (__isnan, isnan)
+
 /* It turns out that the 'double' version will also always work for
    single-precision.  */
 strong_alias (__isnan, __isnanf)