arch/m32r/include/asm/elf.h

   1 #ifndef _ASM_M32R__ELF_H
   2 #define _ASM_M32R__ELF_H
   3
   4 /*
   5  * ELF-specific definitions.
   6  *
   7  * Copyright (C) 1999-2004, Renesas Technology Corp.
   8  *      Hirokazu Takata <takata at linux-m32r.org>
   9  */
  10
  11 #include <asm/ptrace.h>
  12 #include <asm/user.h>
  13 #include <asm/page.h>
  14
  15 /* M32R relocation types  */
  16 #define R_M32R_NONE             0
  17 #define R_M32R_16               1
  18 #define R_M32R_32               2
  19 #define R_M32R_24               3
  20 #define R_M32R_10_PCREL         4
  21 #define R_M32R_18_PCREL         5
  22 #define R_M32R_26_PCREL         6
  23 #define R_M32R_HI16_ULO         7
  24 #define R_M32R_HI16_SLO         8
  25 #define R_M32R_LO16             9
  26 #define R_M32R_SDA16            10
  27 #define R_M32R_GNU_VTINHERIT    11
  28 #define R_M32R_GNU_VTENTRY      12
  29
  30 #define R_M32R_16_RELA          33
  31 #define R_M32R_32_RELA          34
  32 #define R_M32R_24_RELA          35
  33 #define R_M32R_10_PCREL_RELA    36
  34 #define R_M32R_18_PCREL_RELA    37
  35 #define R_M32R_26_PCREL_RELA    38
  36 #define R_M32R_HI16_ULO_RELA    39
  37 #define R_M32R_HI16_SLO_RELA    40
  38 #define R_M32R_LO16_RELA        41
  39 #define R_M32R_SDA16_RELA       42
  40 #define R_M32R_RELA_GNU_VTINHERIT       43
  41 #define R_M32R_RELA_GNU_VTENTRY 44
  42
  43 #define R_M32R_GOT24            48
  44 #define R_M32R_26_PLTREL        49
  45 #define R_M32R_COPY             50
  46 #define R_M32R_GLOB_DAT         51
  47 #define R_M32R_JMP_SLOT         52
  48 #define R_M32R_RELATIVE         53
  49 #define R_M32R_GOTOFF           54
  50 #define R_M32R_GOTPC24          55
  51 #define R_M32R_GOT16_HI_ULO     56
  52 #define R_M32R_GOT16_HI_SLO     57
  53 #define R_M32R_GOT16_LO         58
  54 #define R_M32R_GOTPC_HI_ULO     59
  55 #define R_M32R_GOTPC_HI_SLO     60
  56 #define R_M32R_GOTPC_LO         61
  57 #define R_M32R_GOTOFF_HI_ULO    62
  58 #define R_M32R_GOTOFF_HI_SLO    63
  59 #define R_M32R_GOTOFF_LO        64
  60
  61 #define R_M32R_NUM              256
  62
  63 /*
  64  * ELF register definitions..
  65  */
  66 #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
  67
  68 typedef unsigned long elf_greg_t;
  69 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  70
  71 /* We have no FP mumumu.  */
  72 typedef double elf_fpreg_t;
  73 typedef elf_fpreg_t elf_fpregset_t;
  74
  75 /*
  76  * This is used to ensure we don't load something for the wrong architecture.
  77  */
  78 #define elf_check_arch(x) \
  79         (((x)->e_machine == EM_M32R) || ((x)->e_machine == EM_CYGNUS_M32R))
  80
  81 /*
  82  * These are used to set parameters in the core dumps.
  83  */
  84 #define ELF_CLASS       ELFCLASS32
  85 #if defined(__LITTLE_ENDIAN__)
  86 #define ELF_DATA        ELFDATA2LSB
  87 #elif defined(__BIG_ENDIAN__)
  88 #define ELF_DATA        ELFDATA2MSB
  89 #else
  90 #error no endian defined
  91 #endif
  92 #define ELF_ARCH        EM_M32R
  93
  94 /* r0 is set by ld.so to a pointer to a function which might be
  95  * registered using 'atexit'.  This provides a mean for the dynamic
  96  * linker to call DT_FINI functions for shared libraries that have
  97  * been loaded before the code runs.
  98  *
  99  * So that we can use the same startup file with static executables,
 100  * we start programs with a value of 0 to indicate that there is no
 101  * such function.
 102  */
 103 #define ELF_PLAT_INIT(_r, load_addr)    (_r)->r0 = 0
 104
 105 #define ELF_EXEC_PAGESIZE       PAGE_SIZE
 106
 107 /*
 108  * This is the location that an ET_DYN program is loaded if exec'ed.
 109  * Typical use of this is to invoke "./ld.so someprog" to test out a
 110  * new version of the loader.  We need to make sure that it is out of
 111  * the way of the program that it will "exec", and that there is
 112  * sufficient room for the brk.
 113  */
 114 #define ELF_ET_DYN_BASE         (TASK_SIZE / 3 * 2)
 115
 116 /* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
 117    now struct_user_regs, they are different) */
 118
 119 #define ELF_CORE_COPY_REGS(pr_reg, regs)  \
 120         memcpy((char *)pr_reg, (char *)regs, sizeof (struct pt_regs));
 121
 122 /* This yields a mask that user programs can use to figure out what
 123    instruction set this CPU supports.  */
 124 #define ELF_HWCAP       (0)
 125
 126 /* This yields a string that ld.so will use to load implementation
 127    specific libraries for optimization.  This is more specific in
 128    intent than poking at uname or /proc/cpuinfo.  */
 129 #define ELF_PLATFORM    (NULL)
 130
 131 #define SET_PERSONALITY(ex) set_personality(PER_LINUX)
 132
 133 #endif  /* _ASM_M32R__ELF_H */