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dbc35cc7 | 1 | /* |
27f85f12 | 2 | * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
dbc35cc7 BS |
3 | * Licensed under the GPL |
4 | */ | |
27f85f12 AV |
5 | #ifndef __UM_ELF_X86_H |
6 | #define __UM_ELF_X86_H | |
dbc35cc7 BS |
7 | |
8 | #include <asm/user.h> | |
37185b33 | 9 | #include <skas.h> |
dbc35cc7 | 10 | |
27f85f12 AV |
11 | #ifdef CONFIG_X86_32 |
12 | ||
13 | #define R_386_NONE 0 | |
14 | #define R_386_32 1 | |
15 | #define R_386_PC32 2 | |
16 | #define R_386_GOT32 3 | |
17 | #define R_386_PLT32 4 | |
18 | #define R_386_COPY 5 | |
19 | #define R_386_GLOB_DAT 6 | |
20 | #define R_386_JMP_SLOT 7 | |
21 | #define R_386_RELATIVE 8 | |
22 | #define R_386_GOTOFF 9 | |
23 | #define R_386_GOTPC 10 | |
24 | #define R_386_NUM 11 | |
25 | ||
26 | /* | |
27 | * This is used to ensure we don't load something for the wrong architecture. | |
28 | */ | |
29 | #define elf_check_arch(x) \ | |
30 | (((x)->e_machine == EM_386) || ((x)->e_machine == EM_486)) | |
31 | ||
32 | #define ELF_CLASS ELFCLASS32 | |
33 | #define ELF_DATA ELFDATA2LSB | |
34 | #define ELF_ARCH EM_386 | |
35 | ||
36 | #define ELF_PLAT_INIT(regs, load_addr) do { \ | |
243412be AV |
37 | PT_REGS_BX(regs) = 0; \ |
38 | PT_REGS_CX(regs) = 0; \ | |
39 | PT_REGS_DX(regs) = 0; \ | |
40 | PT_REGS_SI(regs) = 0; \ | |
41 | PT_REGS_DI(regs) = 0; \ | |
42 | PT_REGS_BP(regs) = 0; \ | |
43 | PT_REGS_AX(regs) = 0; \ | |
27f85f12 AV |
44 | } while (0) |
45 | ||
46 | /* Shamelessly stolen from include/asm-i386/elf.h */ | |
47 | ||
48 | #define ELF_CORE_COPY_REGS(pr_reg, regs) do { \ | |
243412be AV |
49 | pr_reg[0] = PT_REGS_BX(regs); \ |
50 | pr_reg[1] = PT_REGS_CX(regs); \ | |
51 | pr_reg[2] = PT_REGS_DX(regs); \ | |
52 | pr_reg[3] = PT_REGS_SI(regs); \ | |
53 | pr_reg[4] = PT_REGS_DI(regs); \ | |
54 | pr_reg[5] = PT_REGS_BP(regs); \ | |
55 | pr_reg[6] = PT_REGS_AX(regs); \ | |
27f85f12 AV |
56 | pr_reg[7] = PT_REGS_DS(regs); \ |
57 | pr_reg[8] = PT_REGS_ES(regs); \ | |
58 | /* fake once used fs and gs selectors? */ \ | |
59 | pr_reg[9] = PT_REGS_DS(regs); \ | |
60 | pr_reg[10] = PT_REGS_DS(regs); \ | |
61 | pr_reg[11] = PT_REGS_SYSCALL_NR(regs); \ | |
62 | pr_reg[12] = PT_REGS_IP(regs); \ | |
63 | pr_reg[13] = PT_REGS_CS(regs); \ | |
64 | pr_reg[14] = PT_REGS_EFLAGS(regs); \ | |
65 | pr_reg[15] = PT_REGS_SP(regs); \ | |
66 | pr_reg[16] = PT_REGS_SS(regs); \ | |
67 | } while (0); | |
68 | ||
69 | extern char * elf_aux_platform; | |
70 | #define ELF_PLATFORM (elf_aux_platform) | |
71 | ||
72 | extern unsigned long vsyscall_ehdr; | |
73 | extern unsigned long vsyscall_end; | |
74 | extern unsigned long __kernel_vsyscall; | |
75 | ||
76 | /* | |
77 | * This is the range that is readable by user mode, and things | |
78 | * acting like user mode such as get_user_pages. | |
79 | */ | |
80 | #define FIXADDR_USER_START vsyscall_ehdr | |
81 | #define FIXADDR_USER_END vsyscall_end | |
82 | ||
83 | ||
84 | /* | |
85 | * Architecture-neutral AT_ values in 0-17, leave some room | |
86 | * for more of them, start the x86-specific ones at 32. | |
87 | */ | |
88 | #define AT_SYSINFO 32 | |
89 | #define AT_SYSINFO_EHDR 33 | |
90 | ||
91 | #define ARCH_DLINFO \ | |
92 | do { \ | |
93 | if ( vsyscall_ehdr ) { \ | |
94 | NEW_AUX_ENT(AT_SYSINFO, __kernel_vsyscall); \ | |
95 | NEW_AUX_ENT(AT_SYSINFO_EHDR, vsyscall_ehdr); \ | |
96 | } \ | |
97 | } while (0) | |
98 | ||
99 | #else | |
100 | ||
ba9950c8 JD |
101 | /* x86-64 relocation types, taken from asm-x86_64/elf.h */ |
102 | #define R_X86_64_NONE 0 /* No reloc */ | |
103 | #define R_X86_64_64 1 /* Direct 64 bit */ | |
104 | #define R_X86_64_PC32 2 /* PC relative 32 bit signed */ | |
105 | #define R_X86_64_GOT32 3 /* 32 bit GOT entry */ | |
106 | #define R_X86_64_PLT32 4 /* 32 bit PLT address */ | |
107 | #define R_X86_64_COPY 5 /* Copy symbol at runtime */ | |
108 | #define R_X86_64_GLOB_DAT 6 /* Create GOT entry */ | |
109 | #define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */ | |
110 | #define R_X86_64_RELATIVE 8 /* Adjust by program base */ | |
111 | #define R_X86_64_GOTPCREL 9 /* 32 bit signed pc relative | |
112 | offset to GOT */ | |
113 | #define R_X86_64_32 10 /* Direct 32 bit zero extended */ | |
114 | #define R_X86_64_32S 11 /* Direct 32 bit sign extended */ | |
115 | #define R_X86_64_16 12 /* Direct 16 bit zero extended */ | |
116 | #define R_X86_64_PC16 13 /* 16 bit sign extended pc relative */ | |
117 | #define R_X86_64_8 14 /* Direct 8 bit sign extended */ | |
118 | #define R_X86_64_PC8 15 /* 8 bit sign extended pc relative */ | |
119 | ||
120 | #define R_X86_64_NUM 16 | |
121 | ||
dbc35cc7 BS |
122 | /* |
123 | * This is used to ensure we don't load something for the wrong architecture. | |
124 | */ | |
125 | #define elf_check_arch(x) \ | |
126 | ((x)->e_machine == EM_X86_64) | |
127 | ||
128 | #define ELF_CLASS ELFCLASS64 | |
129 | #define ELF_DATA ELFDATA2LSB | |
130 | #define ELF_ARCH EM_X86_64 | |
131 | ||
132 | #define ELF_PLAT_INIT(regs, load_addr) do { \ | |
243412be AV |
133 | PT_REGS_BX(regs) = 0; \ |
134 | PT_REGS_CX(regs) = 0; \ | |
135 | PT_REGS_DX(regs) = 0; \ | |
136 | PT_REGS_SI(regs) = 0; \ | |
137 | PT_REGS_DI(regs) = 0; \ | |
138 | PT_REGS_BP(regs) = 0; \ | |
139 | PT_REGS_AX(regs) = 0; \ | |
dbc35cc7 BS |
140 | PT_REGS_R8(regs) = 0; \ |
141 | PT_REGS_R9(regs) = 0; \ | |
142 | PT_REGS_R10(regs) = 0; \ | |
143 | PT_REGS_R11(regs) = 0; \ | |
144 | PT_REGS_R12(regs) = 0; \ | |
145 | PT_REGS_R13(regs) = 0; \ | |
146 | PT_REGS_R14(regs) = 0; \ | |
147 | PT_REGS_R15(regs) = 0; \ | |
148 | } while (0) | |
149 | ||
b08cd961 RK |
150 | #define ELF_CORE_COPY_REGS(pr_reg, _regs) \ |
151 | (pr_reg)[0] = (_regs)->regs.gp[0]; \ | |
152 | (pr_reg)[1] = (_regs)->regs.gp[1]; \ | |
153 | (pr_reg)[2] = (_regs)->regs.gp[2]; \ | |
154 | (pr_reg)[3] = (_regs)->regs.gp[3]; \ | |
155 | (pr_reg)[4] = (_regs)->regs.gp[4]; \ | |
156 | (pr_reg)[5] = (_regs)->regs.gp[5]; \ | |
157 | (pr_reg)[6] = (_regs)->regs.gp[6]; \ | |
158 | (pr_reg)[7] = (_regs)->regs.gp[7]; \ | |
159 | (pr_reg)[8] = (_regs)->regs.gp[8]; \ | |
160 | (pr_reg)[9] = (_regs)->regs.gp[9]; \ | |
161 | (pr_reg)[10] = (_regs)->regs.gp[10]; \ | |
162 | (pr_reg)[11] = (_regs)->regs.gp[11]; \ | |
163 | (pr_reg)[12] = (_regs)->regs.gp[12]; \ | |
164 | (pr_reg)[13] = (_regs)->regs.gp[13]; \ | |
165 | (pr_reg)[14] = (_regs)->regs.gp[14]; \ | |
166 | (pr_reg)[15] = (_regs)->regs.gp[15]; \ | |
167 | (pr_reg)[16] = (_regs)->regs.gp[16]; \ | |
168 | (pr_reg)[17] = (_regs)->regs.gp[17]; \ | |
169 | (pr_reg)[18] = (_regs)->regs.gp[18]; \ | |
170 | (pr_reg)[19] = (_regs)->regs.gp[19]; \ | |
171 | (pr_reg)[20] = (_regs)->regs.gp[20]; \ | |
d1254b12 JD |
172 | (pr_reg)[21] = current->thread.arch.fs; \ |
173 | (pr_reg)[22] = 0; \ | |
174 | (pr_reg)[23] = 0; \ | |
175 | (pr_reg)[24] = 0; \ | |
176 | (pr_reg)[25] = 0; \ | |
177 | (pr_reg)[26] = 0; | |
178 | ||
27f85f12 AV |
179 | #define ELF_PLATFORM "x86_64" |
180 | ||
181 | /* No user-accessible fixmap addresses, i.e. vsyscall */ | |
182 | #define FIXADDR_USER_START 0 | |
183 | #define FIXADDR_USER_END 0 | |
184 | ||
185 | #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 | |
186 | struct linux_binprm; | |
187 | extern int arch_setup_additional_pages(struct linux_binprm *bprm, | |
188 | int uses_interp); | |
189 | ||
190 | extern unsigned long um_vdso_addr; | |
191 | #define AT_SYSINFO_EHDR 33 | |
192 | #define ARCH_DLINFO NEW_AUX_ENT(AT_SYSINFO_EHDR, um_vdso_addr) | |
193 | ||
194 | #endif | |
195 | ||
196 | typedef unsigned long elf_greg_t; | |
197 | ||
198 | #define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t)) | |
199 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; | |
200 | ||
201 | typedef struct user_i387_struct elf_fpregset_t; | |
202 | ||
13e165ba PP |
203 | #define task_pt_regs(t) (&(t)->thread.regs) |
204 | ||
4cb3ca7c JK |
205 | struct task_struct; |
206 | ||
8192ab42 | 207 | extern int elf_core_copy_fpregs(struct task_struct *t, elf_fpregset_t *fpu); |
d1254b12 JD |
208 | |
209 | #define ELF_CORE_COPY_FPREGS(t, fpu) elf_core_copy_fpregs(t, fpu) | |
210 | ||
dbc35cc7 BS |
211 | #define ELF_EXEC_PAGESIZE 4096 |
212 | ||
213 | #define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) | |
214 | ||
215 | extern long elf_aux_hwcap; | |
216 | #define ELF_HWCAP (elf_aux_hwcap) | |
217 | ||
0b592682 | 218 | #define SET_PERSONALITY(ex) do ; while(0) |
fc9a0018 | 219 | #define __HAVE_ARCH_GATE_AREA 1 |
fc9a0018 | 220 | |
dbc35cc7 | 221 | #endif |