LXR linux/arch/unicore32/include/asm/elf.h

   1/*
   2 * linux/arch/unicore32/include/asm/elf.h
   3 *
   4 * Code specific to PKUnity SoC and UniCore ISA
   5 *
   6 * Copyright (C) 2001-2010 GUAN Xue-tao
   7 *
   8 * This program is free software; you can redistribute it and/or modify
   9 * it under the terms of the GNU General Public License version 2 as
  10 * published by the Free Software Foundation.
  11 */
  12
  13#ifndef __UNICORE_ELF_H__
  14#define __UNICORE_ELF_H__
  15
  16#include <asm/hwcap.h>
  17
  18/*
  19 * ELF register definitions..
  20 */
  21#include <asm/ptrace.h>
  22
  23typedef unsigned long elf_greg_t;
  24typedef unsigned long elf_freg_t[3];
  25
  26#define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t))
  27typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  28
  29typedef struct fp_state elf_fpregset_t;
  30
  31#define EM_UNICORE              110
  32
  33#define R_UNICORE_NONE          0
  34#define R_UNICORE_PC24          1
  35#define R_UNICORE_ABS32         2
  36#define R_UNICORE_CALL          28
  37#define R_UNICORE_JUMP24        29
  38
  39/*
  40 * These are used to set parameters in the core dumps.
  41 */
  42#define ELF_CLASS       ELFCLASS32
  43#define ELF_DATA        ELFDATA2LSB
  44#define ELF_ARCH        EM_UNICORE
  45
  46/*
  47 * This yields a string that ld.so will use to load implementation
  48 * specific libraries for optimization.  This is more specific in
  49 * intent than poking at uname or /proc/cpuinfo.
  50 *
  51 */
  52#define ELF_PLATFORM_SIZE 8
  53#define ELF_PLATFORM    (elf_platform)
  54
  55extern char elf_platform[];
  56
  57struct elf32_hdr;
  58
  59/*
  60 * This is used to ensure we don't load something for the wrong architecture.
  61 */
  62extern int elf_check_arch(const struct elf32_hdr *);
  63#define elf_check_arch elf_check_arch
  64
  65struct task_struct;
  66int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
  67#define ELF_CORE_COPY_TASK_REGS dump_task_regs
  68
  69#define ELF_EXEC_PAGESIZE       4096
  70
  71/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
  72   use of this is to invoke "./ld.so someprog" to test out a new version of
  73   the loader.  We need to make sure that it is out of the way of the program
  74   that it will "exec", and that there is sufficient room for the brk.  */
  75
  76#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
  77
  78/* When the program starts, a1 contains a pointer to a function to be
  79   registered with atexit, as per the SVR4 ABI.  A value of 0 means we
  80   have no such handler.  */
  81#define ELF_PLAT_INIT(_r, load_addr)    {(_r)->UCreg_00 = 0; }
  82
  83extern void elf_set_personality(const struct elf32_hdr *);
  84#define SET_PERSONALITY(ex)     elf_set_personality(&(ex))
  85
  86struct mm_struct;
  87extern unsigned long arch_randomize_brk(struct mm_struct *mm);
  88#define arch_randomize_brk arch_randomize_brk
  89
  90extern int vectors_user_mapping(void);
  91#define arch_setup_additional_pages(bprm, uses_interp) vectors_user_mapping()
  92#define ARCH_HAS_SETUP_ADDITIONAL_PAGES
  93
  94#endif
  95