1 /* Machine-specific declarations for dynamic linker interface. PowerPC version
2 Copyright (C) 2004-2023 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 #ifndef _LINK_H
20 # error "Never include <bits/link.h> directly; use <link.h> instead."
21 #endif
22
23
24 #if __ELF_NATIVE_CLASS == 32
25
26 /* Registers for entry into PLT on PPC32. */
27 typedef struct La_ppc32_regs
28 {
29 uint32_t lr_reg[8];
30 double lr_fp[8];
31 uint32_t lr_vreg[12][4];
32 uint32_t lr_r1;
33 uint32_t lr_lr;
34 } La_ppc32_regs;
35
36 /* Return values for calls from PLT on PPC32. */
37 typedef struct La_ppc32_retval
38 {
39 uint32_t lrv_r3;
40 uint32_t lrv_r4;
41 double lrv_fp[8];
42 uint32_t lrv_v2[4];
43 } La_ppc32_retval;
44
45
46 __BEGIN_DECLS
47
48 extern Elf32_Addr la_ppc32_gnu_pltenter (Elf32_Sym *__sym,
49 unsigned int __ndx,
50 uintptr_t *__refcook,
51 uintptr_t *__defcook,
52 La_ppc32_regs *__regs,
53 unsigned int *__flags,
54 const char *__symname,
55 long int *__framesizep);
56 extern unsigned int la_ppc32_gnu_pltexit (Elf32_Sym *__sym,
57 unsigned int __ndx,
58 uintptr_t *__refcook,
59 uintptr_t *__defcook,
60 const La_ppc32_regs *__inregs,
61 La_ppc32_retval *__outregs,
62 const char *__symname);
63
64 __END_DECLS
65
66 #elif __ELF_NATIVE_CLASS == 64
67 # if _CALL_ELF != 2
68
69 /* Registers for entry into PLT on PPC64. */
70 typedef struct La_ppc64_regs
71 {
72 uint64_t lr_reg[8];
73 double lr_fp[13];
74 uint32_t __padding;
75 uint32_t lr_vrsave;
76 uint32_t lr_vreg[12][4];
77 uint64_t lr_r1;
78 uint64_t lr_lr;
79 } La_ppc64_regs;
80
81 /* Return values for calls from PLT on PPC64. */
82 typedef struct La_ppc64_retval
83 {
84 uint64_t lrv_r3;
85 uint64_t lrv_r4;
86 double lrv_fp[4]; /* f1-f4, float - complex long double. */
87 uint32_t lrv_v2[4]; /* v2. */
88 } La_ppc64_retval;
89
90
91 __BEGIN_DECLS
92
93 extern Elf64_Addr la_ppc64_gnu_pltenter (Elf64_Sym *__sym,
94 unsigned int __ndx,
95 uintptr_t *__refcook,
96 uintptr_t *__defcook,
97 La_ppc64_regs *__regs,
98 unsigned int *__flags,
99 const char *__symname,
100 long int *__framesizep);
101 extern unsigned int la_ppc64_gnu_pltexit (Elf64_Sym *__sym,
102 unsigned int __ndx,
103 uintptr_t *__refcook,
104 uintptr_t *__defcook,
105 const La_ppc64_regs *__inregs,
106 La_ppc64_retval *__outregs,
107 const char *__symname);
108
109 __END_DECLS
110
111 # else
112
113 /* Registers for entry into PLT on PPC64 in the ELFv2 ABI. */
114 typedef struct La_ppc64v2_regs
115 {
116 uint64_t lr_reg[8];
117 double lr_fp[13];
118 uint32_t __padding;
119 uint32_t lr_vrsave;
120 uint32_t lr_vreg[12][4] __attribute__ ((aligned (16)));
121 uint64_t lr_r1;
122 uint64_t lr_lr;
123 } La_ppc64v2_regs;
124
125 /* Return values for calls from PLT on PPC64 in the ELFv2 ABI. */
126 typedef struct La_ppc64v2_retval
127 {
128 uint64_t lrv_r3;
129 uint64_t lrv_r4;
130 double lrv_fp[10];
131 uint32_t lrv_vreg[8][4] __attribute__ ((aligned (16)));
132 } La_ppc64v2_retval;
133
134
135 __BEGIN_DECLS
136
137 extern Elf64_Addr la_ppc64v2_gnu_pltenter (Elf64_Sym *__sym,
138 unsigned int __ndx,
139 uintptr_t *__refcook,
140 uintptr_t *__defcook,
141 La_ppc64v2_regs *__regs,
142 unsigned int *__flags,
143 const char *__symname,
144 long int *__framesizep);
145 extern unsigned int la_ppc64v2_gnu_pltexit (Elf64_Sym *__sym,
146 unsigned int __ndx,
147 uintptr_t *__refcook,
148 uintptr_t *__defcook,
149 const La_ppc64v2_regs *__inregs,
150 La_ppc64v2_retval *__outregs,
151 const char *__symname);
152
153 __END_DECLS
154
155 # endif
156 #endif