1 /* Copyright (C) 2004-2022 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 23 #ifndef __x86_64__ 24 /* Registers for entry into PLT on IA-32. */ 25 typedef struct La_i86_regs 26 { 27 uint32_t lr_edx; 28 uint32_t lr_ecx; 29 uint32_t lr_eax; 30 uint32_t lr_ebp; 31 uint32_t lr_esp; 32 } La_i86_regs; 33 34 /* Return values for calls from PLT on IA-32. */ 35 typedef struct La_i86_retval 36 { 37 uint32_t lrv_eax; 38 uint32_t lrv_edx; 39 long double lrv_st0; 40 long double lrv_st1; 41 uint64_t __glibc_unused1; 42 uint64_t __glibc_unused2; 43 } La_i86_retval; 44 45 46 __BEGIN_DECLS 47 48 extern Elf32_Addr la_i86_gnu_pltenter (Elf32_Sym *__sym, unsigned int __ndx, 49 uintptr_t *__refcook, 50 uintptr_t *__defcook, 51 La_i86_regs *__regs, 52 unsigned int *__flags, 53 const char *__symname, 54 long int *__framesizep); 55 extern unsigned int la_i86_gnu_pltexit (Elf32_Sym *__sym, unsigned int __ndx, 56 uintptr_t *__refcook, 57 uintptr_t *__defcook, 58 const La_i86_regs *__inregs, 59 La_i86_retval *__outregs, 60 const char *symname); 61 62 __END_DECLS 63 64 #else 65 66 /* Registers for entry into PLT on x86-64. */ 67 # if __GNUC_PREREQ (4,0) 68 typedef float La_x86_64_xmm __attribute__ ((__vector_size__ (16))); 69 typedef float La_x86_64_ymm 70 __attribute__ ((__vector_size__ (32), __aligned__ (16))); 71 typedef double La_x86_64_zmm 72 __attribute__ ((__vector_size__ (64), __aligned__ (16))); 73 # else 74 typedef float La_x86_64_xmm __attribute__ ((__mode__ (__V4SF__))); 75 # endif 76 77 typedef union 78 { 79 # if __GNUC_PREREQ (4,0) 80 La_x86_64_ymm ymm[2]; 81 La_x86_64_zmm zmm[1]; 82 # endif 83 La_x86_64_xmm xmm[4]; 84 } La_x86_64_vector __attribute__ ((__aligned__ (16))); 85 86 typedef struct La_x86_64_regs 87 { 88 uint64_t lr_rdx; 89 uint64_t lr_r8; 90 uint64_t lr_r9; 91 uint64_t lr_rcx; 92 uint64_t lr_rsi; 93 uint64_t lr_rdi; 94 uint64_t lr_rbp; 95 uint64_t lr_rsp; 96 La_x86_64_xmm lr_xmm[8]; 97 La_x86_64_vector lr_vector[8]; 98 #ifndef __ILP32__ 99 __int128_t __glibc_unused1[4]; 100 #endif 101 } La_x86_64_regs; 102 103 /* Return values for calls from PLT on x86-64. */ 104 typedef struct La_x86_64_retval 105 { 106 uint64_t lrv_rax; 107 uint64_t lrv_rdx; 108 La_x86_64_xmm lrv_xmm0; 109 La_x86_64_xmm lrv_xmm1; 110 long double lrv_st0; 111 long double lrv_st1; 112 La_x86_64_vector lrv_vector0; 113 La_x86_64_vector lrv_vector1; 114 #ifndef __ILP32__ 115 __int128_t __glibc_unused1; 116 __int128_t __glibc_unused2; 117 #endif 118 } La_x86_64_retval; 119 120 #define La_x32_regs La_x86_64_regs 121 #define La_x32_retval La_x86_64_retval 122 123 __BEGIN_DECLS 124 125 extern Elf64_Addr la_x86_64_gnu_pltenter (Elf64_Sym *__sym, 126 unsigned int __ndx, 127 uintptr_t *__refcook, 128 uintptr_t *__defcook, 129 La_x86_64_regs *__regs, 130 unsigned int *__flags, 131 const char *__symname, 132 long int *__framesizep); 133 extern unsigned int la_x86_64_gnu_pltexit (Elf64_Sym *__sym, 134 unsigned int __ndx, 135 uintptr_t *__refcook, 136 uintptr_t *__defcook, 137 const La_x86_64_regs *__inregs, 138 La_x86_64_retval *__outregs, 139 const char *__symname); 140 141 extern Elf32_Addr la_x32_gnu_pltenter (Elf32_Sym *__sym, 142 unsigned int __ndx, 143 uintptr_t *__refcook, 144 uintptr_t *__defcook, 145 La_x32_regs *__regs, 146 unsigned int *__flags, 147 const char *__symname, 148 long int *__framesizep); 149 extern unsigned int la_x32_gnu_pltexit (Elf32_Sym *__sym, 150 unsigned int __ndx, 151 uintptr_t *__refcook, 152 uintptr_t *__defcook, 153 const La_x32_regs *__inregs, 154 La_x32_retval *__outregs, 155 const char *__symname); 156 157 __END_DECLS 158 159 #endif 160