summaryrefslogtreecommitdiffstats
path: root/arch/um/sys-x86_64/asm/elf.h
blob: 11a2bfb3885960d8811b4e89e0e03c734d0a51a4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
/*
 * Copyright 2003 PathScale, Inc.
 * Copyright (C) 2003 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
 *
 * Licensed under the GPL
 */
#ifndef __UM_ELF_X86_64_H
#define __UM_ELF_X86_64_H

#include <asm/user.h>
#include "skas.h"

/* x86-64 relocation types, taken from asm-x86_64/elf.h */
#define R_X86_64_NONE		0	/* No reloc */
#define R_X86_64_64		1	/* Direct 64 bit  */
#define R_X86_64_PC32		2	/* PC relative 32 bit signed */
#define R_X86_64_GOT32		3	/* 32 bit GOT entry */
#define R_X86_64_PLT32		4	/* 32 bit PLT address */
#define R_X86_64_COPY		5	/* Copy symbol at runtime */
#define R_X86_64_GLOB_DAT	6	/* Create GOT entry */
#define R_X86_64_JUMP_SLOT	7	/* Create PLT entry */
#define R_X86_64_RELATIVE	8	/* Adjust by program base */
#define R_X86_64_GOTPCREL	9	/* 32 bit signed pc relative
					   offset to GOT */
#define R_X86_64_32		10	/* Direct 32 bit zero extended */
#define R_X86_64_32S		11	/* Direct 32 bit sign extended */
#define R_X86_64_16		12	/* Direct 16 bit zero extended */
#define R_X86_64_PC16		13	/* 16 bit sign extended pc relative */
#define R_X86_64_8		14	/* Direct 8 bit sign extended  */
#define R_X86_64_PC8		15	/* 8 bit sign extended pc relative */

#define R_X86_64_NUM		16

typedef unsigned long elf_greg_t;

#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];

typedef struct user_i387_struct elf_fpregset_t;

/*
 * This is used to ensure we don't load something for the wrong architecture.
 */
#define elf_check_arch(x) \
	((x)->e_machine == EM_X86_64)

#define ELF_CLASS	ELFCLASS64
#define ELF_DATA        ELFDATA2LSB
#define ELF_ARCH        EM_X86_64

#define ELF_PLAT_INIT(regs, load_addr)    do { \
	PT_REGS_RBX(regs) = 0; \
	PT_REGS_RCX(regs) = 0; \
	PT_REGS_RDX(regs) = 0; \
	PT_REGS_RSI(regs) = 0; \
	PT_REGS_RDI(regs) = 0; \
	PT_REGS_RBP(regs) = 0; \
	PT_REGS_RAX(regs) = 0; \
	PT_REGS_R8(regs) = 0; \
	PT_REGS_R9(regs) = 0; \
	PT_REGS_R10(regs) = 0; \
	PT_REGS_R11(regs) = 0; \
	PT_REGS_R12(regs) = 0; \
	PT_REGS_R13(regs) = 0; \
	PT_REGS_R14(regs) = 0; \
	PT_REGS_R15(regs) = 0; \
} while (0)

#define ELF_CORE_COPY_REGS(pr_reg, _regs)		\
	(pr_reg)[0] = (_regs)->regs.gp[0];			\
	(pr_reg)[1] = (_regs)->regs.gp[1];			\
	(pr_reg)[2] = (_regs)->regs.gp[2];			\
	(pr_reg)[3] = (_regs)->regs.gp[3];			\
	(pr_reg)[4] = (_regs)->regs.gp[4];			\
	(pr_reg)[5] = (_regs)->regs.gp[5];			\
	(pr_reg)[6] = (_regs)->regs.gp[6];			\
	(pr_reg)[7] = (_regs)->regs.gp[7];			\
	(pr_reg)[8] = (_regs)->regs.gp[8];			\
	(pr_reg)[9] = (_regs)->regs.gp[9];			\
	(pr_reg)[10] = (_regs)->regs.gp[10];			\
	(pr_reg)[11] = (_regs)->regs.gp[11];			\
	(pr_reg)[12] = (_regs)->regs.gp[12];			\
	(pr_reg)[13] = (_regs)->regs.gp[13];			\
	(pr_reg)[14] = (_regs)->regs.gp[14];			\
	(pr_reg)[15] = (_regs)->regs.gp[15];			\
	(pr_reg)[16] = (_regs)->regs.gp[16];			\
	(pr_reg)[17] = (_regs)->regs.gp[17];			\
	(pr_reg)[18] = (_regs)->regs.gp[18];			\
	(pr_reg)[19] = (_regs)->regs.gp[19];			\
	(pr_reg)[20] = (_regs)->regs.gp[20];			\
	(pr_reg)[21] = current->thread.arch.fs;			\
	(pr_reg)[22] = 0;					\
	(pr_reg)[23] = 0;					\
	(pr_reg)[24] = 0;					\
	(pr_reg)[25] = 0;					\
	(pr_reg)[26] = 0;

#define task_pt_regs(t) (&(t)->thread.regs)

struct task_struct;

extern int elf_core_copy_fpregs(struct task_struct *t, elf_fpregset_t *fpu);

#define ELF_CORE_COPY_FPREGS(t, fpu) elf_core_copy_fpregs(t, fpu)

#ifdef TIF_IA32 /* XXX */
#error XXX, indeed
        clear_thread_flag(TIF_IA32);
#endif

#define ELF_EXEC_PAGESIZE 4096

#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)

extern long elf_aux_hwcap;
#define ELF_HWCAP (elf_aux_hwcap)

#define ELF_PLATFORM "x86_64"

#define SET_PERSONALITY(ex) do ; while(0)

#define __HAVE_ARCH_GATE_AREA 1
#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
struct linux_binprm;
extern int arch_setup_additional_pages(struct linux_binprm *bprm,
	int uses_interp);

extern unsigned long um_vdso_addr;
#define AT_SYSINFO_EHDR 33
#define ARCH_DLINFO	NEW_AUX_ENT(AT_SYSINFO_EHDR, um_vdso_addr)

#endif
OpenPOWER on IntegriCloud