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688903eb3e
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3 Commits

Author SHA1 Message Date
Joseph Myers
688903eb3e Update copyright dates with scripts/update-copyrights. 
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
 2018-01-01 00:32:25 +00:00
Adhemerval Zanella
65687ac76c Remove remaining _HAVE_STRING_ARCH_* definitions (BZ #18858) 
Since the removal of bits/string.h, _HAVE_STRING_ARCH_* are no
longer used.  This patch removes the unused macros from i686
and x86_64 sysdeps folder.

Checked on x86_64-linux-gnu and i686-linux-gnu.

	* sysdeps/i386/i686/multiarch/strncpy.c (_HAVE_STRING_ARCH_strncpy):
	Remove define.
	* sysdeps/x86_64/multiarch/stpcpy.c (_HAVE_STRING_ARCH_stpcpy):
	Likewise.
	* sysdeps/x86_64/multiarch/strcspn.c (_HAVE_STRING_ARCH_strcspn):
	Likewise.
	* sysdeps/x86_64/multiarch/strncat.c (_HAVE_STRING_ARCH_strncat):
	Likewise.
	* sysdeps/x86_64/multiarch/strncpy.c (_HAVE_STRING_ARCH_strncpy):
	Likewise.
	* sysdeps/x86_64/multiarch/strpbrk.c (_HAVE_STRING_ARCH_strpbrk):
	Likewise.
	* sysdeps/x86_64/multiarch/strspn.c (_HAVE_STRING_ARCH_strspn):
	Likewise.
 2017-09-06 14:35:23 -03:00
H.J. Lu
9ed0aa15d3 x86-64: Implement strcat family IFUNC selectors in C 
Implement strcat family IFUNC selectors in C.

All internal calls within libc.so can use IFUNC on x86-64 since unlike
x86, x86-64 supports PC-relative addressing to access the GOT entry so
that it can call via PLT without using an extra register.  For libc.a,
we can't use IFUNC for functions which are called before IFUNC has been
initialized.  Use IFUNC internally reduces the icache footprint since
libc.so and other codes in the process use the same implementations.
This patch uses IFUNC for strcat family functions within libc.

	* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add
	strcat-sse2.
	* sysdeps/x86_64/multiarch/strcat-sse2.S: New file.
	* sysdeps/x86_64/multiarch/strcat.c: Likewise.
	* sysdeps/x86_64/multiarch/strncat.c: Likewise.
	* sysdeps/x86_64/multiarch/strcat.S: Removed.
	* sysdeps/x86_64/multiarch/strncat.S: Likewise.
 2017-06-15 08:56:59 -07:00