arch/um/sys-x86_64/asm/elf.h

   1 /*
   2  * Copyright 2003 PathScale, Inc.
   3  * Copyright (C) 2003 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
   4  *
   5  * Licensed under the GPL
   6  */
   7 #ifndef __UM_ELF_X86_64_H
   8 #define __UM_ELF_X86_64_H
   9
  10 #include <asm/user.h>
  11 #include "skas.h"
  12
  13 /* x86-64 relocation types, taken from asm-x86_64/elf.h */
  14 #define R_X86_64_NONE           0       /* No reloc */
  15 #define R_X86_64_64             1       /* Direct 64 bit  */
  16 #define R_X86_64_PC32           2       /* PC relative 32 bit signed */
  17 #define R_X86_64_GOT32          3       /* 32 bit GOT entry */
  18 #define R_X86_64_PLT32          4       /* 32 bit PLT address */
  19 #define R_X86_64_COPY           5       /* Copy symbol at runtime */
  20 #define R_X86_64_GLOB_DAT       6       /* Create GOT entry */
  21 #define R_X86_64_JUMP_SLOT      7       /* Create PLT entry */
  22 #define R_X86_64_RELATIVE       8       /* Adjust by program base */
  23 #define R_X86_64_GOTPCREL       9       /* 32 bit signed pc relative
  24                                            offset to GOT */
  25 #define R_X86_64_32             10      /* Direct 32 bit zero extended */
  26 #define R_X86_64_32S            11      /* Direct 32 bit sign extended */
  27 #define R_X86_64_16             12      /* Direct 16 bit zero extended */
  28 #define R_X86_64_PC16           13      /* 16 bit sign extended pc relative */
  29 #define R_X86_64_8              14      /* Direct 8 bit sign extended  */
  30 #define R_X86_64_PC8            15      /* 8 bit sign extended pc relative */
  31
  32 #define R_X86_64_NUM            16
  33
  34 typedef unsigned long elf_greg_t;
  35
  36 #define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
  37 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  38
  39 typedef struct user_i387_struct elf_fpregset_t;
  40
  41 /*
  42  * This is used to ensure we don't load something for the wrong architecture.
  43  */
  44 #define elf_check_arch(x) \
  45         ((x)->e_machine == EM_X86_64)
  46
  47 #define ELF_CLASS       ELFCLASS64
  48 #define ELF_DATA        ELFDATA2LSB
  49 #define ELF_ARCH        EM_X86_64
  50
  51 #define ELF_PLAT_INIT(regs, load_addr)    do { \
  52         PT_REGS_RBX(regs) = 0; \
  53         PT_REGS_RCX(regs) = 0; \
  54         PT_REGS_RDX(regs) = 0; \
  55         PT_REGS_RSI(regs) = 0; \
  56         PT_REGS_RDI(regs) = 0; \
  57         PT_REGS_RBP(regs) = 0; \
  58         PT_REGS_RAX(regs) = 0; \
  59         PT_REGS_R8(regs) = 0; \
  60         PT_REGS_R9(regs) = 0; \
  61         PT_REGS_R10(regs) = 0; \
  62         PT_REGS_R11(regs) = 0; \
  63         PT_REGS_R12(regs) = 0; \
  64         PT_REGS_R13(regs) = 0; \
  65         PT_REGS_R14(regs) = 0; \
  66         PT_REGS_R15(regs) = 0; \
  67 } while (0)
  68
  69 #define ELF_CORE_COPY_REGS(pr_reg, _regs)               \
  70         (pr_reg)[0] = (_regs)->regs.gp[0];                      \
  71         (pr_reg)[1] = (_regs)->regs.gp[1];                      \
  72         (pr_reg)[2] = (_regs)->regs.gp[2];                      \
  73         (pr_reg)[3] = (_regs)->regs.gp[3];                      \
  74         (pr_reg)[4] = (_regs)->regs.gp[4];                      \
  75         (pr_reg)[5] = (_regs)->regs.gp[5];                      \
  76         (pr_reg)[6] = (_regs)->regs.gp[6];                      \
  77         (pr_reg)[7] = (_regs)->regs.gp[7];                      \
  78         (pr_reg)[8] = (_regs)->regs.gp[8];                      \
  79         (pr_reg)[9] = (_regs)->regs.gp[9];                      \
  80         (pr_reg)[10] = (_regs)->regs.gp[10];                    \
  81         (pr_reg)[11] = (_regs)->regs.gp[11];                    \
  82         (pr_reg)[12] = (_regs)->regs.gp[12];                    \
  83         (pr_reg)[13] = (_regs)->regs.gp[13];                    \
  84         (pr_reg)[14] = (_regs)->regs.gp[14];                    \
  85         (pr_reg)[15] = (_regs)->regs.gp[15];                    \
  86         (pr_reg)[16] = (_regs)->regs.gp[16];                    \
  87         (pr_reg)[17] = (_regs)->regs.gp[17];                    \
  88         (pr_reg)[18] = (_regs)->regs.gp[18];                    \
  89         (pr_reg)[19] = (_regs)->regs.gp[19];                    \
  90         (pr_reg)[20] = (_regs)->regs.gp[20];                    \
  91         (pr_reg)[21] = current->thread.arch.fs;                 \
  92         (pr_reg)[22] = 0;                                       \
  93         (pr_reg)[23] = 0;                                       \
  94         (pr_reg)[24] = 0;                                       \
  95         (pr_reg)[25] = 0;                                       \
  96         (pr_reg)[26] = 0;
  97
  98 extern int elf_core_copy_fpregs(struct task_struct *t, elf_fpregset_t *fpu);
  99
 100 #define ELF_CORE_COPY_FPREGS(t, fpu) elf_core_copy_fpregs(t, fpu)
 101
 102 #ifdef TIF_IA32 /* XXX */
 103 #error XXX, indeed
 104         clear_thread_flag(TIF_IA32);
 105 #endif
 106
 107 #define ELF_EXEC_PAGESIZE 4096
 108
 109 #define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
 110
 111 extern long elf_aux_hwcap;
 112 #define ELF_HWCAP (elf_aux_hwcap)
 113
 114 #define ELF_PLATFORM "x86_64"
 115
 116 #define SET_PERSONALITY(ex) do ; while(0)
 117
 118 #endif