include/asm-blackfin/elf.h

   1 /* Changes made by  LG Soft Oct 2004*/
   2
   3 #ifndef __ASMBFIN_ELF_H
   4 #define __ASMBFIN_ELF_H
   5
   6 /*
   7  * ELF register definitions..
   8  */
   9
  10 #include <asm/ptrace.h>
  11 #include <asm/user.h>
  12
  13 /* Processor specific flags for the ELF header e_flags field.  */
  14 #define EF_BFIN_PIC             0x00000001      /* -fpic */
  15 #define EF_BFIN_FDPIC           0x00000002      /* -mfdpic */
  16 #define EF_BFIN_CODE_IN_L1      0x00000010      /* --code-in-l1 */
  17 #define EF_BFIN_DATA_IN_L1      0x00000020      /* --data-in-l1 */
  18
  19 typedef unsigned long elf_greg_t;
  20
  21 #define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t))
  22 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  23
  24 typedef struct user_bfinfp_struct elf_fpregset_t;
  25 /*
  26  * This is used to ensure we don't load something for the wrong architecture.
  27  */
  28 #define elf_check_arch(x) ((x)->e_machine == EM_BLACKFIN)
  29
  30 #define elf_check_fdpic(x) ((x)->e_flags & EF_BFIN_FDPIC /* && !((x)->e_flags & EF_FRV_NON_PIC_RELOCS) */)
  31 #define elf_check_const_displacement(x) ((x)->e_flags & EF_BFIN_PIC)
  32
  33 /* EM_BLACKFIN defined in linux/elf.h   */
  34
  35 /*
  36  * These are used to set parameters in the core dumps.
  37  */
  38 #define ELF_CLASS       ELFCLASS32
  39 #define ELF_DATA        ELFDATA2LSB
  40 #define ELF_ARCH        EM_BLACKFIN
  41
  42 #define ELF_PLAT_INIT(_r)       _r->p1 = 0
  43
  44 #define ELF_FDPIC_PLAT_INIT(_regs, _exec_map_addr, _interp_map_addr, _dynamic_addr)     \
  45 do {                                                                                    \
  46         _regs->r7       = 0;                                            \
  47         _regs->p0       = _exec_map_addr;                               \
  48         _regs->p1       = _interp_map_addr;                             \
  49         _regs->p2       = _dynamic_addr;                                \
  50 } while(0)
  51
  52 #define USE_ELF_CORE_DUMP
  53 #define ELF_FDPIC_CORE_EFLAGS   EF_BFIN_FDPIC
  54 #define ELF_EXEC_PAGESIZE       4096
  55
  56 #define R_unused0       0       /* relocation type 0 is not defined */
  57 #define R_pcrel5m2      1       /*LSETUP part a */
  58 #define R_unused1       2       /* relocation type 2 is not defined */
  59 #define R_pcrel10       3       /* type 3, if cc jump <target>  */
  60 #define R_pcrel12_jump  4       /* type 4, jump <target> */
  61 #define R_rimm16        5       /* type 0x5, rN = <target> */
  62 #define R_luimm16       6       /* # 0x6, preg.l=<target> Load imm 16 to lower half */
  63 #define R_huimm16       7       /* # 0x7, preg.h=<target> Load imm 16 to upper half */
  64 #define R_pcrel12_jump_s 8      /* # 0x8 jump.s <target> */
  65 #define R_pcrel24_jump_x 9      /* # 0x9 jump.x <target> */
  66 #define R_pcrel24       10      /* # 0xa call <target> , not expandable */
  67 #define R_unusedb       11      /* # 0xb not generated */
  68 #define R_unusedc       12      /* # 0xc  not used */
  69 #define R_pcrel24_jump_l 13     /*0xd jump.l <target> */
  70 #define R_pcrel24_call_x 14     /* 0xE, call.x <target> if <target> is above 24 bit limit call through P1 */
  71 #define R_var_eq_symb    15     /* 0xf, linker should treat it same as 0x12 */
  72 #define R_byte_data      16     /* 0x10, .byte var = symbol */
  73 #define R_byte2_data     17     /* 0x11, .byte2 var = symbol */
  74 #define R_byte4_data     18     /* 0x12, .byte4 var = symbol and .var var=symbol */
  75 #define R_pcrel11        19     /* 0x13, lsetup part b */
  76 #define R_unused14      20      /* 0x14, undefined */
  77 #define R_unused15       21     /* not generated by VDSP 3.5 */
  78
  79 /* arithmetic relocations */
  80 #define R_push           0xE0
  81 #define R_const          0xE1
  82 #define R_add            0xE2
  83 #define R_sub            0xE3
  84 #define R_mult           0xE4
  85 #define R_div            0xE5
  86 #define R_mod            0xE6
  87 #define R_lshift         0xE7
  88 #define R_rshift         0xE8
  89 #define R_and            0xE9
  90 #define R_or             0xEA
  91 #define R_xor            0xEB
  92 #define R_land           0xEC
  93 #define R_lor            0xED
  94 #define R_len            0xEE
  95 #define R_neg            0xEF
  96 #define R_comp           0xF0
  97 #define R_page           0xF1
  98 #define R_hwpage         0xF2
  99 #define R_addr           0xF3
 100
 101 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
 102    use of this is to invoke "./ld.so someprog" to test out a new version of
 103    the loader.  We need to make sure that it is out of the way of the program
 104    that it will "exec", and that there is sufficient room for the brk.  */
 105
 106 #define ELF_ET_DYN_BASE         0xD0000000UL
 107
 108 #define ELF_CORE_COPY_REGS(pr_reg, regs)        \
 109         memcpy((char *) &pr_reg, (char *)regs,  \
 110                sizeof(struct pt_regs));
 111
 112 /* This yields a mask that user programs can use to figure out what
 113    instruction set this cpu supports.  */
 114
 115 #define ELF_HWCAP       (0)
 116
 117 /* This yields a string that ld.so will use to load implementation
 118    specific libraries for optimization.  This is more specific in
 119    intent than poking at uname or /proc/cpuinfo.  */
 120
 121 #define ELF_PLATFORM  (NULL)
 122
 123 #define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
 124
 125 #endif