xref: /haiku/src/system/libroot/posix/glibc/include/arch/riscv64/bits/link.h (revision 51ab221fc753c6755e47a83abee10fbba5918131)
1 /* Machine-specific declarations for dynamic linker interface.  RISC-V version.
2    Copyright (C) 2005-2019 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    <http://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 typedef struct La_riscv_regs
24 {
25   unsigned long int lr_reg[8]; /* a0 - a7 */
26   double lr_fpreg[8]; /* fa0 - fa7 */
27   unsigned long int lr_ra;
28   unsigned long int lr_sp;
29 } La_riscv_regs;
30 
31 /* Return values for calls from PLT on RISC-V.  */
32 typedef struct La_riscv_retval
33 {
34   unsigned long int lrv_a0;
35   unsigned long int lrv_a1;
36   double lrv_fa0;
37   double lrv_fa1;
38 } La_riscv_retval;
39 
40 __BEGIN_DECLS
41 
42 extern ElfW(Addr) la_riscv_gnu_pltenter (ElfW(Sym) *__sym, unsigned int __ndx,
43 					 uintptr_t *__refcook,
44 					 uintptr_t *__defcook,
45 					 La_riscv_regs *__regs,
46 					 unsigned int *__flags,
47 					 const char *__symname,
48 					 long int *__framesizep);
49 extern unsigned int la_riscv_gnu_pltexit (ElfW(Sym) *__sym, unsigned int __ndx,
50 					  uintptr_t *__refcook,
51 					  uintptr_t *__defcook,
52 					  const La_riscv_regs *__inregs,
53 					  La_riscv_retval *__outregs,
54 					  const char *__symname);
55 
56 __END_DECLS
57