Commit | Line | Data |
---|---|---|
dbc35cc7 | 1 | /* |
009ec2a9 | 2 | * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) |
dbc35cc7 BS |
3 | * Licensed under the GPL |
4 | */ | |
5 | #ifndef __UM_ELF_I386_H | |
6 | #define __UM_ELF_I386_H | |
7 | ||
8192ab42 | 8 | #include <asm/user.h> |
058ac308 | 9 | #include "skas.h" |
dbc35cc7 BS |
10 | |
11 | #define R_386_NONE 0 | |
12 | #define R_386_32 1 | |
13 | #define R_386_PC32 2 | |
14 | #define R_386_GOT32 3 | |
15 | #define R_386_PLT32 4 | |
16 | #define R_386_COPY 5 | |
17 | #define R_386_GLOB_DAT 6 | |
18 | #define R_386_JMP_SLOT 7 | |
19 | #define R_386_RELATIVE 8 | |
20 | #define R_386_GOTOFF 9 | |
21 | #define R_386_GOTPC 10 | |
22 | #define R_386_NUM 11 | |
23 | ||
24 | typedef unsigned long elf_greg_t; | |
25 | ||
26 | #define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t)) | |
27 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; | |
28 | ||
29 | typedef struct user_i387_struct elf_fpregset_t; | |
30 | ||
31 | /* | |
32 | * This is used to ensure we don't load something for the wrong architecture. | |
33 | */ | |
34 | #define elf_check_arch(x) \ | |
35 | (((x)->e_machine == EM_386) || ((x)->e_machine == EM_486)) | |
36 | ||
37 | #define ELF_CLASS ELFCLASS32 | |
38 | #define ELF_DATA ELFDATA2LSB | |
39 | #define ELF_ARCH EM_386 | |
40 | ||
41 | #define ELF_PLAT_INIT(regs, load_addr) do { \ | |
42 | PT_REGS_EBX(regs) = 0; \ | |
43 | PT_REGS_ECX(regs) = 0; \ | |
44 | PT_REGS_EDX(regs) = 0; \ | |
45 | PT_REGS_ESI(regs) = 0; \ | |
46 | PT_REGS_EDI(regs) = 0; \ | |
47 | PT_REGS_EBP(regs) = 0; \ | |
48 | PT_REGS_EAX(regs) = 0; \ | |
009ec2a9 | 49 | } while (0) |
dbc35cc7 | 50 | |
dbc35cc7 BS |
51 | #define ELF_EXEC_PAGESIZE 4096 |
52 | ||
53 | #define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) | |
54 | ||
55 | /* Shamelessly stolen from include/asm-i386/elf.h */ | |
56 | ||
57 | #define ELF_CORE_COPY_REGS(pr_reg, regs) do { \ | |
58 | pr_reg[0] = PT_REGS_EBX(regs); \ | |
59 | pr_reg[1] = PT_REGS_ECX(regs); \ | |
60 | pr_reg[2] = PT_REGS_EDX(regs); \ | |
61 | pr_reg[3] = PT_REGS_ESI(regs); \ | |
62 | pr_reg[4] = PT_REGS_EDI(regs); \ | |
63 | pr_reg[5] = PT_REGS_EBP(regs); \ | |
64 | pr_reg[6] = PT_REGS_EAX(regs); \ | |
65 | pr_reg[7] = PT_REGS_DS(regs); \ | |
66 | pr_reg[8] = PT_REGS_ES(regs); \ | |
67 | /* fake once used fs and gs selectors? */ \ | |
68 | pr_reg[9] = PT_REGS_DS(regs); \ | |
69 | pr_reg[10] = PT_REGS_DS(regs); \ | |
70 | pr_reg[11] = PT_REGS_SYSCALL_NR(regs); \ | |
71 | pr_reg[12] = PT_REGS_IP(regs); \ | |
72 | pr_reg[13] = PT_REGS_CS(regs); \ | |
73 | pr_reg[14] = PT_REGS_EFLAGS(regs); \ | |
74 | pr_reg[15] = PT_REGS_SP(regs); \ | |
75 | pr_reg[16] = PT_REGS_SS(regs); \ | |
009ec2a9 | 76 | } while (0); |
dbc35cc7 | 77 | |
8192ab42 | 78 | extern int elf_core_copy_fpregs(struct task_struct *t, elf_fpregset_t *fpu); |
058ac308 JD |
79 | |
80 | #define ELF_CORE_COPY_FPREGS(t, fpu) elf_core_copy_fpregs(t, fpu) | |
81 | ||
dbc35cc7 BS |
82 | extern long elf_aux_hwcap; |
83 | #define ELF_HWCAP (elf_aux_hwcap) | |
84 | ||
85 | extern char * elf_aux_platform; | |
86 | #define ELF_PLATFORM (elf_aux_platform) | |
87 | ||
0b592682 | 88 | #define SET_PERSONALITY(ex) do { } while (0) |
dbc35cc7 BS |
89 | |
90 | extern unsigned long vsyscall_ehdr; | |
91 | extern unsigned long vsyscall_end; | |
92 | extern unsigned long __kernel_vsyscall; | |
93 | ||
94 | #define VSYSCALL_BASE vsyscall_ehdr | |
95 | #define VSYSCALL_END vsyscall_end | |
96 | ||
97 | /* | |
98 | * This is the range that is readable by user mode, and things | |
99 | * acting like user mode such as get_user_pages. | |
100 | */ | |
101 | #define FIXADDR_USER_START VSYSCALL_BASE | |
102 | #define FIXADDR_USER_END VSYSCALL_END | |
103 | ||
104 | /* | |
105 | * Architecture-neutral AT_ values in 0-17, leave some room | |
106 | * for more of them, start the x86-specific ones at 32. | |
107 | */ | |
108 | #define AT_SYSINFO 32 | |
109 | #define AT_SYSINFO_EHDR 33 | |
110 | ||
111 | #define ARCH_DLINFO \ | |
112 | do { \ | |
113 | if ( vsyscall_ehdr ) { \ | |
114 | NEW_AUX_ENT(AT_SYSINFO, __kernel_vsyscall); \ | |
115 | NEW_AUX_ENT(AT_SYSINFO_EHDR, vsyscall_ehdr); \ | |
116 | } \ | |
117 | } while (0) | |
118 | ||
dbc35cc7 | 119 | #endif |