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authorStefan Liebler <stli@linux.ibm.com>2018-12-18 13:57:18 +0100
committerStefan Liebler <stli@linux.ibm.com>2018-12-18 13:57:18 +0100
commitc7e7cd266ed123b6dfb722f599934ca5dcfd3e93 (patch)
tree7ef5ef26b7fbed31024f59cefa691369968eea19 /sysdeps/s390/Makefile
parent2e02d0b7a9bf3421638d2d0f2526275a1df5c0da (diff)
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S390: Refactor wcsnlen ifunc handling.
The ifunc handling for wcsnlen 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 wcsnlen variants.
	* sysdeps/s390/Makefile (sysdep_routines): Add wcsnlen variants.
	* sysdeps/s390/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Refactor ifunc handling for wcsnlen.
	* sysdeps/s390/multiarch/wcsnlen-c.c: Move to ...
	* sysdeps/s390/wcsnlen-c.c: ... here and adjust ifunc handling.
	* sysdeps/s390/multiarch/wcsnlen-vx.S: Move to ...
	* sysdeps/s390/wcsnlen-vx.S: ... here and adjust ifunc handling.
	* sysdeps/s390/multiarch/wcsnlen.c: Move to ...
	* sysdeps/s390/wcsnlen.c: ... here and adjust ifunc handling.
	* sysdeps/s390/ifunc-wcsnlen.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 10c0e1bea0..590d2207b7 100644
--- a/sysdeps/s390/Makefile
+++ b/sysdeps/s390/Makefile
@@ -83,5 +83,6 @@ sysdep_routines += bzero memset memset-z900 \
 endif
 
 ifeq ($(subdir),wcsmbs)
-sysdep_routines += wcslen wcslen-vx wcslen-c
+sysdep_routines += wcslen wcslen-vx wcslen-c \
+		   wcsnlen wcsnlen-vx wcsnlen-c
 endif