1 /* strstr variant information on S/390 version.
2    Copyright (C) 2018-2022 Free Software Foundation, Inc.
3    This file is part of the GNU C Library.
4 
5    The GNU C Library is free software; you can redistribute it and/or
6    modify it under the terms of the GNU Lesser General Public
7    License as published by the Free Software Foundation; either
8    version 2.1 of the License, or (at your option) any later version.
9 
10    The GNU C Library is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13    Lesser General Public License for more details.
14 
15    You should have received a copy of the GNU Lesser General Public
16    License along with the GNU C Library; if not, see
17    <https://www.gnu.org/licenses/>.  */
18 
19 #if defined USE_MULTIARCH && IS_IN (libc)		\
20   && ! defined HAVE_S390_MIN_ARCH13_ZARCH_ASM_SUPPORT
21 # define HAVE_STRSTR_IFUNC	1
22 #else
23 # define HAVE_STRSTR_IFUNC	0
24 #endif
25 
26 #ifdef HAVE_S390_VX_ASM_SUPPORT
27 # define HAVE_STRSTR_IFUNC_AND_VX_SUPPORT HAVE_STRSTR_IFUNC
28 #else
29 # define HAVE_STRSTR_IFUNC_AND_VX_SUPPORT 0
30 #endif
31 
32 #ifdef HAVE_S390_ARCH13_ASM_SUPPORT
33 # define HAVE_STRSTR_IFUNC_AND_ARCH13_SUPPORT HAVE_STRSTR_IFUNC
34 #else
35 # define HAVE_STRSTR_IFUNC_AND_ARCH13_SUPPORT 0
36 #endif
37 
38 #if defined HAVE_S390_MIN_ARCH13_ZARCH_ASM_SUPPORT
39 # define STRSTR_DEFAULT		STRSTR_ARCH13
40 # define HAVE_STRSTR_C		0
41 # define HAVE_STRSTR_Z13	1
42 # define STRSTR_Z13_ONLY_USED_AS_FALLBACK 1
43 # define HAVE_STRSTR_ARCH13	1
44 #elif defined HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
45 # define STRSTR_DEFAULT		STRSTR_Z13
46 # define HAVE_STRSTR_C		0
47 # define HAVE_STRSTR_Z13	1
48 # define HAVE_STRSTR_ARCH13	HAVE_STRSTR_IFUNC_AND_ARCH13_SUPPORT
49 #else
50 # define STRSTR_DEFAULT		STRSTR_C
51 # define HAVE_STRSTR_C		1
52 # define HAVE_STRSTR_Z13	HAVE_STRSTR_IFUNC_AND_VX_SUPPORT
53 # define HAVE_STRSTR_ARCH13	HAVE_STRSTR_IFUNC_AND_ARCH13_SUPPORT
54 #endif
55 
56 #ifndef STRSTR_Z13_ONLY_USED_AS_FALLBACK
57 # define STRSTR_Z13_ONLY_USED_AS_FALLBACK 0
58 #endif
59 
60 #if HAVE_STRSTR_C
61 # define STRSTR_C		__strstr_c
62 #else
63 # define STRSTR_C		NULL
64 #endif
65 
66 #if HAVE_STRSTR_Z13
67 # define STRSTR_Z13		__strstr_vx
68 #else
69 # define STRSTR_Z13		NULL
70 #endif
71 
72 #if HAVE_STRSTR_ARCH13
73 # define STRSTR_ARCH13		__strstr_arch13
74 #else
75 # define STRSTR_ARCH13		NULL
76 #endif
77