1 /* Copyright (C) 2005-2021 Free Software Foundation, Inc.
2 
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 License as
7    published by the Free Software Foundation; either version 2.1 of the
8    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 /* Registers for entry into PLT on AArch64.  */
24 typedef struct La_aarch64_regs
25 {
26   uint64_t lr_xreg[8];
27   uint64_t lr_dreg[8];
28   uint64_t lr_sp;
29   uint64_t lr_lr;
30 } La_aarch64_regs;
31 
32 /* Return values for calls from PLT on AArch64.  */
33 typedef struct La_aarch64_retval
34 {
35   /* Up to two integer registers can be used for a return value.  */
36   uint64_t lrv_xreg[2];
37   /* Up to four D registers can be used for a return value.  */
38   uint64_t lrv_dreg[4];
39 
40 } La_aarch64_retval;
41 __BEGIN_DECLS
42 
43 extern ElfW(Addr)
44 la_aarch64_gnu_pltenter (ElfW(Sym) *__sym, unsigned int __ndx,
45 			 uintptr_t *__refcook,
46 			 uintptr_t *__defcook,
47 			 La_aarch64_regs *__regs,
48 			 unsigned int *__flags,
49 			 const char *__symname,
50 			 long int *__framesizep);
51 
52 extern unsigned int
53 la_aarch64_gnu_pltexit (ElfW(Sym) *__sym, unsigned int __ndx,
54 			uintptr_t *__refcook,
55 			uintptr_t *__defcook,
56 			const La_aarch64_regs *__inregs,
57 			La_aarch64_retval *__outregs,
58 			const char *__symname);
59 
60 __END_DECLS