include/asm-m68knommu/elf.h

   1 #ifndef __ASMm68k_ELF_H
   2 #define __ASMm68k_ELF_H
   3
   4 /*
   5  * ELF register definitions..
   6  */
   7
   8 #include <linux/config.h>
   9 #include <asm/ptrace.h>
  10 #include <asm/user.h>
  11
  12 /*
  13  * 68k ELF relocation types
  14  */
  15 #define R_68K_NONE  0
  16 #define R_68K_32    1
  17 #define R_68K_16    2
  18 #define R_68K_8     3
  19 #define R_68K_PC32  4
  20 #define R_68K_PC16  5
  21 #define R_68K_PC8   6
  22 #define R_68K_GOT32 7
  23 #define R_68K_GOT16 8
  24 #define R_68K_GOT8  9
  25 #define R_68K_GOT32O    10
  26 #define R_68K_GOT16O    11
  27 #define R_68K_GOT8O 12
  28 #define R_68K_PLT32 13
  29 #define R_68K_PLT16 14
  30 #define R_68K_PLT8  15
  31 #define R_68K_PLT32O    16
  32 #define R_68K_PLT16O    17
  33 #define R_68K_PLT8O 18
  34 #define R_68K_COPY  19
  35 #define R_68K_GLOB_DAT  20
  36 #define R_68K_JMP_SLOT  21
  37 #define R_68K_RELATIVE  22
  38
  39 typedef unsigned long elf_greg_t;
  40
  41 #define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t))
  42 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  43
  44 typedef struct user_m68kfp_struct elf_fpregset_t;
  45
  46 /*
  47  * This is used to ensure we don't load something for the wrong architecture.
  48  */
  49 #define elf_check_arch(x) ((x)->e_machine == EM_68K)
  50
  51 /*
  52  * These are used to set parameters in the core dumps.
  53  */
  54 #define ELF_CLASS       ELFCLASS32
  55 #define ELF_DATA        ELFDATA2MSB
  56 #define ELF_ARCH        EM_68K
  57
  58 /* For SVR4/m68k the function pointer to be registered with `atexit' is
  59    passed in %a1.  Although my copy of the ABI has no such statement, it
  60    is actually used on ASV.  */
  61 #define ELF_PLAT_INIT(_r, load_addr)    _r->a1 = 0
  62
  63 #define USE_ELF_CORE_DUMP
  64 #define ELF_EXEC_PAGESIZE       4096
  65
  66 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
  67    use of this is to invoke "./ld.so someprog" to test out a new version of
  68    the loader.  We need to make sure that it is out of the way of the program
  69    that it will "exec", and that there is sufficient room for the brk.  */
  70
  71 #define ELF_ET_DYN_BASE         0xD0000000UL
  72
  73 #define ELF_CORE_COPY_REGS(pr_reg, regs)                                \
  74         /* Bleech. */                                                   \
  75         pr_reg[0] = regs->d1;                                           \
  76         pr_reg[1] = regs->d2;                                           \
  77         pr_reg[2] = regs->d3;                                           \
  78         pr_reg[3] = regs->d4;                                           \
  79         pr_reg[4] = regs->d5;                                           \
  80         pr_reg[7] = regs->a0;                                           \
  81         pr_reg[8] = regs->a1;                                           \
  82         pr_reg[14] = regs->d0;                                          \
  83         pr_reg[15] = rdusp();                                           \
  84         pr_reg[16] = 0 /* regs->orig_d0 */;                             \
  85         pr_reg[17] = regs->sr;                                          \
  86         pr_reg[18] = regs->pc;                                          \
  87         /* pr_reg[19] = (regs->format << 12) | regs->vector; */         \
  88         {                                                               \
  89           struct switch_stack *sw = ((struct switch_stack *)regs) - 1;  \
  90           pr_reg[5] = sw->d6;                                           \
  91           pr_reg[6] = sw->d7;                                           \
  92           pr_reg[10] = sw->a3;                                          \
  93           pr_reg[11] = sw->a4;                                          \
  94           pr_reg[12] = sw->a5;                                          \
  95           pr_reg[13] = sw->a6;                                          \
  96         }
  97
  98 /* This yields a mask that user programs can use to figure out what
  99    instruction set this cpu supports.  */
 100
 101 #define ELF_HWCAP       (0)
 102
 103 /* This yields a string that ld.so will use to load implementation
 104    specific libraries for optimization.  This is more specific in
 105    intent than poking at uname or /proc/cpuinfo.  */
 106
 107 #define ELF_PLATFORM  (NULL)
 108
 109 #ifdef __KERNEL__
 110 #define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
 111 #endif
 112
 113 #endif