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authorStefan Liebler <stli@linux.ibm.com>2018-12-18 13:57:24 +0100
committerStefan Liebler <stli@linux.ibm.com>2018-12-18 13:57:24 +0100
commitc62534ae524111eae48b2c2adf3f9a2ca90824f5 (patch)
treeda07e010bcc14752b47a8b438daf39b502faf3a9 /sysdeps/s390/Makefile
parent79b44cf61115bd48006227bb325b709f294c56f9 (diff)
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S390: Refactor wmemchr ifunc handling.
The ifunc handling for wmemchr is adjusted in order to omit ifunc
if the minimum architecture level already supports newer CPUs by default.
Unfortunately the c ifunc variant can't be omitted at all as it is used
by the z13 ifunc variant as fallback if the pointers are not 4-byte aligned.
Glibc internal calls will use the "newer" ifunc variant.

ChangeLog:

	* sysdeps/s390/multiarch/Makefile
	(sysdep_routines): Remove wmemchr variants.
	* sysdeps/s390/Makefile (sysdep_routines): Add wmemchr variants.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Refactor ifunc handling for wmemchr.
	* sysdeps/s390/multiarch/wmemchr-c.c: Move to ...
	* sysdeps/s390/wmemchr-c.c: ... here and adjust ifunc handling.
	* sysdeps/s390/multiarch/wmemchr-vx.S: Move to ...
	* sysdeps/s390/wmemchr-vx.S: ... here and adjust ifunc handling.
	* sysdeps/s390/multiarch/wmemchr.c: Move to ...
	* sysdeps/s390/wmemchr.c: ... here and adjust ifunc handling.
	* sysdeps/s390/ifunc-wmemchr.h: New file.
Diffstat (limited to 'sysdeps/s390/Makefile')
-rw-r--r--sysdeps/s390/Makefile3
1 files changed, 2 insertions, 1 deletions
diff --git a/sysdeps/s390/Makefile b/sysdeps/s390/Makefile
index a9058047a9..17aabf328b 100644
--- a/sysdeps/s390/Makefile
+++ b/sysdeps/s390/Makefile
@@ -98,5 +98,6 @@ sysdep_routines += wcslen wcslen-vx wcslen-c \
 		   wcsrchr wcsrchr-vx wcsrchr-c \
 		   wcsspn wcsspn-vx wcsspn-c \
 		   wcspbrk wcspbrk-vx wcspbrk-c \
-		   wcscspn wcscspn-vx wcscspn-c
+		   wcscspn wcscspn-vx wcscspn-c \
+		   wmemchr wmemchr-vx wmemchr-c
 endif