1/* Copyright (C) 2005-2026 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/* Registers for entry into PLT on s390-64. */
27typedef struct La_s390_64_regs
28{
29 uint64_t lr_r2;
30 uint64_t lr_r3;
31 uint64_t lr_r4;
32 uint64_t lr_r5;
33 uint64_t lr_r6;
34 double lr_fp0;
35 double lr_fp2;
36 double lr_fp4;
37 double lr_fp6;
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_64_regs;
49
50/* Return values for calls from PLT on s390-64. */
51typedef struct La_s390_64_retval
52{
53 uint64_t lrv_r2;
54 double lrv_fp0;
55# if defined HAVE_S390_VX_ASM_SUPPORT
56 La_s390_vr lrv_v24;
57# endif
58} La_s390_64_retval;
59
60
61__BEGIN_DECLS
62
63extern Elf64_Addr la_s390_64_gnu_pltenter (Elf64_Sym *__sym,
64 unsigned int __ndx,
65 uintptr_t *__refcook,
66 uintptr_t *__defcook,
67 La_s390_64_regs *__regs,
68 unsigned int *__flags,
69 const char *__symname,
70 long int *__framesizep);
71extern unsigned int la_s390_64_gnu_pltexit (Elf64_Sym *__sym,
72 unsigned int __ndx,
73 uintptr_t *__refcook,
74 uintptr_t *__defcook,
75 const La_s390_64_regs *__inregs,
76 La_s390_64_retval *__outregs,
77 const char *__symname);
78
79__END_DECLS