S390: Refactor ifunc implementations and enable ifunc-test-framework.

On s390 all ifunc resolvers were implemented in multiarch/ifunc-resolve.c.
The resulting single object files has undefined references to all ifunc-functions.
This patch introduces one multiarch/<func>.c file for each of memcpy, memcmp
and memset with the function specific ifunc resolver. The different function
implementations are now implemented in multiarch/<func>-s390x.S
(moved from multiarch/<func>.S).

The new multiarch/ifunc-resolve.h file contains the ifunc-resolver macro
and other helper-macros. They are merged and are now used in common for
32/64bit. Therefore the __<func>_g5/__<func>_z900 functions were renamed to
__<func>_default.

This patch also enables testing the ifunc implementations by implementing
the function __libc_ifunc_impl_list. It uses the helper-macros of ifunc-resolve.h.

ChangeLog:

	* sysdeps/s390/s390-32/multiarch/Makefile (sysdep_routines):
	Remove ifunc-resolve, add memset-s390, memcpy-s390, memcmp-s390.
	* sysdeps/s390/s390-32/multiarch/ifunc-resolve.c: Delete File.
	* sysdeps/s390/s390-32/multiarch/memcmp.S: Move to ...
	* sysdeps/s390/s390-32/multiarch/memcmp-s390.S: ... here.
	(memcmp, bcmp): Use __memcmp_default as alias source.
	* sysdeps/s390/s390-32/multiarch/memcmp.c: New File.
	* sysdeps/s390/s390-32/memcmp.S (__memcmp_g5):
	Rename to __memcmp_default.
	* sysdeps/s390/s390-32/multiarch/memcpy.S: Move to ...
	* sysdeps/s390/s390-32/multiarch/memcpy-s390.S: ... here.
	(memcpy): Use __memcpy_default as alias source.
	* sysdeps/s390/s390-32/multiarch/memcpy.c: New File.
	* sysdeps/s390/s390-32/memcpy.S (__memcpy_g5):
	Rename to __memcpy_default.
	* sysdeps/s390/s390-32/multiarch/memset.S: Move to ...
	* sysdeps/s390/s390-32/multiarch/memset-s390.S: ... here.
	(memset): Use __memset_default as alias source.
	* sysdeps/s390/s390-32/multiarch/memset.c: New File.
	* sysdeps/s390/s390-32/memset.S (__memset_g5):
	Rename to __memset_default.
	* sysdeps/s390/s390-64/multiarch/Makefile (sysdep_routines):
	Remove ifunc-resolve, add memset-s390x, memcpy-s390x, memcmp-s390x.
	* sysdeps/s390/s390-64/multiarch/ifunc-resolve.c: Delete File.
	* sysdeps/s390/s390-64/multiarch/memcmp.S: Move to ...
	* sysdeps/s390/s390-64/multiarch/memcmp-s390x.S: ... here.
	(memcmp, bcmp): Use __memcmp_default as alias source.
	* sysdeps/s390/s390-64/multiarch/memcmp.c: New File.
	* sysdeps/s390/s390-64/memcmp.S (__memcmp_z900):
	Rename to __memcmp_default.
	* sysdeps/s390/s390-64/multiarch/memcpy.S: Move to ...
	* sysdeps/s390/s390-64/multiarch/memcpy-s390x.S: ... here.
	(memcpy): Use __memcpy_default as alias source.
	* sysdeps/s390/s390-64/multiarch/memcpy.c: New File.
	* sysdeps/s390/s390-64/memcpy.S (__memcpy_z900):
	Rename to __memcpy_default.
	* sysdeps/s390/s390-64/multiarch/memset.S: Move to ...
	* sysdeps/s390/s390-64/multiarch/memset-s390x.S: ... here.
	(memset): Use __memset_default as alias source.
	* sysdeps/s390/s390-64/multiarch/memset.c: New File.
	* sysdeps/s390/s390-64/memset.S (__memset_z900):
	Rename to __memset_default.
	* sysdeps/s390/multiarch/ifunc-resolve.h: New File.
	* sysdeps/s390/multiarch/ifunc-impl-list.c: New File.

1 files changed, 0 insertions, 113 deletions

diff --git a/sysdeps/s390/s390-32/multiarch/memset.S b/sysdeps/s390/s390-32/multiarch/memset.S
deleted file mode 100644
index 1a7b45f369..0000000000
--- a/sysdeps/s390/s390-32/multiarch/memset.S
+++ /dev/null
@@ -1,113 +0,0 @@
-/* Set a block of memory to some byte value.  32 bit S/390 version.
-   Copyright (C) 2012-2015 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-
-#include "sysdep.h"
-#include "asm-syntax.h"
-
-/* INPUT PARAMETERS
-     %r2 = address of memory area
-     %r3 = byte to fill memory with
-     %r4 = number of bytes to fill.  */
-
-       .text
-
-#if IS_IN (libc)
-
-ENTRY(__memset_z196)
-	.machine "z196"
-	.machinemode "zarch_nohighgprs"
-        llgfr   %r4,%r4
-        ltgr    %r4,%r4
-        je      .L_Z196_4
-        stc     %r3,0(%r2)
-        lr      %r1,%r2
-        cghi    %r4,1
-        je      .L_Z196_4
-        aghi    %r4,-2
-        srlg    %r5,%r4,8
-        ltgr    %r5,%r5
-        jne     .L_Z196_1
-.L_Z196_3:
-        exrl    %r4,.L_Z196_17
-.L_Z196_4:
-        br      %r14
-.L_Z196_1:
-	cgfi	%r5,1048576
-	jh	__memset_mvcle	   # Switch to mvcle for >256MB
-.L_Z196_2:
-        pfd     2,1024(%r1)
-        mvc     1(256,%r1),0(%r1)
-        aghi    %r5,-1
-        la      %r1,256(%r1)
-        jne     .L_Z196_2
-        j       .L_Z196_3
-.L_Z196_17:
-        mvc     1(1,%r1),0(%r1)
-END(__memset_z196)
-
-ENTRY(__memset_z10)
-	.machine "z10"
-	.machinemode "zarch_nohighgprs"
-        llgfr   %r4,%r4
-        cgije   %r4,0,.L_Z10_4
-        stc     %r3,0(%r2)
-        lr      %r1,%r2
-        cgije   %r4,1,.L_Z10_4
-        aghi    %r4,-2
-        srlg    %r5,%r4,8
-        cgijlh  %r5,0,.L_Z10_15
-.L_Z10_3:
-        exrl    %r4,.L_Z10_18
-.L_Z10_4:
-        br      %r14
-.L_Z10_15:
-	cgfi	%r5,163840          # Switch to mvcle for >40MB
-	jh	__memset_mvcle
-.L_Z10_14:
-        pfd     2,1024(%r1)
-        mvc     1(256,%r1),0(%r1)
-        la      %r1,256(%r1)
-        brctg   %r5,.L_Z10_14
-        j       .L_Z10_3
-.L_Z10_18:
-        mvc     1(1,%r1),0(%r1)
-END(__memset_z10)
-
-ENTRY(__memset_mvcle)
-	ahi	%r4,2               # take back the change done by the caller
-	lr      %r0,%r2             # save source address
-	lr      %r1,%r3             # move pad byte to R1
-	lr      %r3,%r4
-	sr      %r4,%r4             # no source for MVCLE, only a pad byte
-	sr      %r5,%r5
-.L0:    mvcle   %r2,%r4,0(%r1)      # thats it, MVCLE is your friend
-	jo      .L0
-	lr      %r2,%r0             # return value is source address
-.L1:
-	br      %r14
-END(__memset_mvcle)
-
-#endif
-
-#include "../memset.S"
-
-#if !IS_IN (libc)
-.globl   memset
-.set     memset,__memset_g5
-#endif