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1/* Copyright (C) 2005-2025 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
8
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <https://www.gnu.org/licenses/>. */
17
18#ifndef _LINK_H
19# error "Never include <bits/link.h> directly; use <link.h> instead."
20#endif
21
22#if defined HAVE_S390_VX_ASM_SUPPORT
23typedef char La_s390_vr[16];
24#endif
25
26#if __ELF_NATIVE_CLASS == 32
27
28/* Registers for entry into PLT on s390-32. */
29typedef struct La_s390_32_regs
30{
31 uint32_t lr_r2;
32 uint32_t lr_r3;
33 uint32_t lr_r4;
34 uint32_t lr_r5;
35 uint32_t lr_r6;
36 double lr_fp0;
37 double lr_fp2;
38# if defined HAVE_S390_VX_ASM_SUPPORT
39 La_s390_vr lr_v24;
40 La_s390_vr lr_v25;
41 La_s390_vr lr_v26;
42 La_s390_vr lr_v27;
43 La_s390_vr lr_v28;
44 La_s390_vr lr_v29;
45 La_s390_vr lr_v30;
46 La_s390_vr lr_v31;
47# endif
48} La_s390_32_regs;
49
50/* Return values for calls from PLT on s390-32. */
51typedef struct La_s390_32_retval
52{
53 uint32_t lrv_r2;
54 uint32_t lrv_r3;
55 double lrv_fp0;
56# if defined HAVE_S390_VX_ASM_SUPPORT
57 La_s390_vr lrv_v24;
58# endif
59} La_s390_32_retval;
60
61
62__BEGIN_DECLS
63
64extern Elf32_Addr la_s390_32_gnu_pltenter (Elf32_Sym *__sym,
65 unsigned int __ndx,
66 uintptr_t *__refcook,
67 uintptr_t *__defcook,
68 La_s390_32_regs *__regs,
69 unsigned int *__flags,
70 const char *__symname,
71 long int *__framesizep);
72extern unsigned int la_s390_32_gnu_pltexit (Elf32_Sym *__sym,
73 unsigned int __ndx,
74 uintptr_t *__refcook,
75 uintptr_t *__defcook,
76 const La_s390_32_regs *__inregs,
77 La_s390_32_retval *__outregs,
78 const char *symname);
79
80__END_DECLS
81
82#else
83
84/* Registers for entry into PLT on s390-64. */
85typedef struct La_s390_64_regs
86{
87 uint64_t lr_r2;
88 uint64_t lr_r3;
89 uint64_t lr_r4;
90 uint64_t lr_r5;
91 uint64_t lr_r6;
92 double lr_fp0;
93 double lr_fp2;
94 double lr_fp4;
95 double lr_fp6;
96# if defined HAVE_S390_VX_ASM_SUPPORT
97 La_s390_vr lr_v24;
98 La_s390_vr lr_v25;
99 La_s390_vr lr_v26;
100 La_s390_vr lr_v27;
101 La_s390_vr lr_v28;
102 La_s390_vr lr_v29;
103 La_s390_vr lr_v30;
104 La_s390_vr lr_v31;
105# endif
106} La_s390_64_regs;
107
108/* Return values for calls from PLT on s390-64. */
109typedef struct La_s390_64_retval
110{
111 uint64_t lrv_r2;
112 double lrv_fp0;
113# if defined HAVE_S390_VX_ASM_SUPPORT
114 La_s390_vr lrv_v24;
115# endif
116} La_s390_64_retval;
117
118
119__BEGIN_DECLS
120
121extern Elf64_Addr la_s390_64_gnu_pltenter (Elf64_Sym *__sym,
122 unsigned int __ndx,
123 uintptr_t *__refcook,
124 uintptr_t *__defcook,
125 La_s390_64_regs *__regs,
126 unsigned int *__flags,
127 const char *__symname,
128 long int *__framesizep);
129extern unsigned int la_s390_64_gnu_pltexit (Elf64_Sym *__sym,
130 unsigned int __ndx,
131 uintptr_t *__refcook,
132 uintptr_t *__defcook,
133 const La_s390_64_regs *__inregs,
134 La_s390_64_retval *__outregs,
135 const char *__symname);
136
137__END_DECLS
138
139#endif