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  • only in /asuswrt-rt-n18u-9.0.0.4.380.2695/release/src-rt-6.x.4708/linux/linux-2.6/arch/um/sys-i386/asm/
1/*
2 * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
3 * Licensed under the GPL
4 */
5#ifndef __UM_ELF_I386_H
6#define __UM_ELF_I386_H
7
8#include <asm/user.h>
9#include "skas.h"
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
24typedef unsigned long elf_greg_t;
25
26#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
27typedef elf_greg_t elf_gregset_t[ELF_NGREG];
28
29typedef 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; \
49} while (0)
50
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);		\
76} while (0);
77
78struct task_struct;
79
80extern int elf_core_copy_fpregs(struct task_struct *t, elf_fpregset_t *fpu);
81
82#define ELF_CORE_COPY_FPREGS(t, fpu) elf_core_copy_fpregs(t, fpu)
83
84extern long elf_aux_hwcap;
85#define ELF_HWCAP (elf_aux_hwcap)
86
87extern char * elf_aux_platform;
88#define ELF_PLATFORM (elf_aux_platform)
89
90#define SET_PERSONALITY(ex) do { } while (0)
91
92extern unsigned long vsyscall_ehdr;
93extern unsigned long vsyscall_end;
94extern unsigned long __kernel_vsyscall;
95
96#define VSYSCALL_BASE vsyscall_ehdr
97#define VSYSCALL_END vsyscall_end
98
99/*
100 * This is the range that is readable by user mode, and things
101 * acting like user mode such as get_user_pages.
102 */
103#define FIXADDR_USER_START      VSYSCALL_BASE
104#define FIXADDR_USER_END        VSYSCALL_END
105
106/*
107 * Architecture-neutral AT_ values in 0-17, leave some room
108 * for more of them, start the x86-specific ones at 32.
109 */
110#define AT_SYSINFO		32
111#define AT_SYSINFO_EHDR		33
112
113#define ARCH_DLINFO						\
114do {								\
115	if ( vsyscall_ehdr ) {					\
116		NEW_AUX_ENT(AT_SYSINFO,	__kernel_vsyscall);	\
117		NEW_AUX_ENT(AT_SYSINFO_EHDR, vsyscall_ehdr);	\
118	}							\
119} while (0)
120
121#endif
122