i386/linux-2.3.21/include/asm-mips/elf.h

   1 /*
   2  * $Id: elf.h,v 1.10 1998/05/01 01:35:51 ralf Exp $
   3  */
   4 #ifndef __ASM_MIPS_ELF_H
   5 #define __ASM_MIPS_ELF_H
   6
   7 /* ELF register definitions */
   8 #define ELF_NGREG       45
   9 #define ELF_NFPREG      33
  10
  11 typedef unsigned long elf_greg_t;
  12 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  13
  14 typedef double elf_fpreg_t;
  15 typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
  16
  17 /*
  18  * This is used to ensure we don't load something for the wrong architecture.
  19  */
  20 #define elf_check_arch(x) ((x) == EM_MIPS || (x) == EM_MIPS_RS4_BE)
  21
  22 /*
  23  * These are used to set parameters in the core dumps.
  24  * FIXME(eric) I don't know what the correct endianness to use is.
  25  */
  26 #define ELF_CLASS       ELFCLASS32
  27 #ifdef __MIPSEB__
  28 #define ELF_DATA        ELFDATA2MSB
  29 #elif __MIPSEL__
  30 #define ELF_DATA        ELFDATA2LSB
  31 #endif
  32 #define ELF_ARCH        EM_MIPS
  33
  34 #define USE_ELF_CORE_DUMP
  35 #define ELF_EXEC_PAGESIZE       4096
  36
  37 #define ELF_CORE_COPY_REGS(_dest,_regs)                         \
  38         memcpy((char *) &_dest, (char *) _regs,                 \
  39                sizeof(struct pt_regs));
  40
  41 /* This yields a mask that user programs can use to figure out what
  42    instruction set this cpu supports.  This could be done in userspace,
  43    but it's not easy, and we've already done it here.  */
  44
  45 #define ELF_HWCAP       (0)
  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    For the moment, we have only optimizations for the Intel generations,
  52    but that could change... */
  53
  54 #define ELF_PLATFORM  (NULL)
  55
  56 /*
  57  * See comments in asm-alpha/elf.h, this is the same thing
  58  * on the MIPS.
  59  */
  60 #define ELF_PLAT_INIT(_r)       do { \
  61         _r->regs[1] = _r->regs[2] = _r->regs[3] = _r->regs[4] = 0;      \
  62         _r->regs[5] = _r->regs[6] = _r->regs[7] = _r->regs[8] = 0;      \
  63         _r->regs[9] = _r->regs[10] = _r->regs[11] = _r->regs[12] = 0;   \
  64         _r->regs[13] = _r->regs[14] = _r->regs[15] = _r->regs[16] = 0;  \
  65         _r->regs[17] = _r->regs[18] = _r->regs[19] = _r->regs[20] = 0;  \
  66         _r->regs[21] = _r->regs[22] = _r->regs[23] = _r->regs[24] = 0;  \
  67         _r->regs[25] = _r->regs[26] = _r->regs[27] = _r->regs[28] = 0;  \
  68         _r->regs[30] = _r->regs[31] = 0;                                \
  69 } while (0)
  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 #ifdef __KERNEL__
  79 #define SET_PERSONALITY(ex,ibcs2) \
  80         current->personality = (ibcs2 ? PER_SVR4 : PER_LINUX)
  81 #endif
  82
  83 #endif /* __ASM_MIPS_ELF_H */