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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 /ChangeLog
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 'ChangeLog')
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diff --git a/ChangeLog b/ChangeLog
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--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,21 @@
 2018-12-18  Stefan Liebler  <stli@linux.ibm.com>
 
 	* 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.
+
+2018-12-18  Stefan Liebler  <stli@linux.ibm.com>
+
+	* sysdeps/s390/multiarch/Makefile
 	(sysdep_routines): Remove wcscspn variants.
 	* sysdeps/s390/Makefile (sysdep_routines): Add wcscspn variants.
 	* sysdeps/s390/multiarch/ifunc-impl-list.c