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authorStefan Liebler <stli@linux.ibm.com>2018-12-18 13:57:06 +0100
committerStefan Liebler <stli@linux.ibm.com>2018-12-18 13:57:06 +0100
commitdf3eb8de31a530f285f54f3c41cd7b636816c062 (patch)
tree4fb88ad41349d2ac228d07e63a7c3f355ca79dc0 /posix/tst-getaddrinfo5.c
parentb7e024a838452a85870256d8f1ab946dc8f931cd (diff)
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S390: Unify 31/64bit memcpy.
The implementation of memcpy/mempcpy for s390-32 (31bit)
and s390-64 (64bit) is nearly the same.
This patch unifies it for maintability reasons.

__mem[p]cpy_z10 and __mem[p]cpy_z196 differs between 31 and 64bit:
-31bit needs .machinemode "zarch_nohighgprs" and llgfr   %r4,%r4
-lr vs lgr; lgr can be also used on 31bit as this ifunc variant
is only called if we are on a zarch machine.

__mem[p]cpy_default differs between 31 and 64bit:
-Some 31bit vs 64bit instructions (e.g. ltr vs ltgr.
Solved with 31/64 specific instruction macros).
-The address of mvc instruction is setup in different ways
(larl vs bras). Solved with #if defined __s390x__.

__memcpy_mvcle differs between 31 and 64bit:
-lr vs lgr; ahi vs aghi;
Solved with 31/64bit specific instruction macros.

Otherwise 31/64bit implementation has the same structure of the code.

ChangeLog:

	* sysdeps/s390/s390-64/memcpy.S: Move to ...
	* sysdeps/s390/memcpy.S: ... here.
	Adjust to be usable for 31/64bit.
	* sysdeps/s390/s390-32/memcpy.S: Delete File.
	* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add memcpy.
	* sysdeps/s390/s390-32/multiarch/Makefile: Delete file.
	* sysdeps/s390/s390-64/multiarch/Makefile: Likewise.
	* sysdeps/s390/s390-64/multiarch/memcpy-s390x.S: Move to ...
	* sysdeps/s390/multiarch/memcpy-s390x.S: ... here.
	Adjust to be usable for 31/64bit.
	* sysdeps/s390/s390-32/multiarch/memcpy-s390.S: Delete File.
	* sysdeps/s390/s390-64/multiarch/memcpy.c: Move to ...
	* sysdeps/s390/multiarch/memcpy.c: ... here.
	* sysdeps/s390/s390-32/multiarch/memcpy.c: Delete File.
Diffstat (limited to 'posix/tst-getaddrinfo5.c')
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