include/asm-sh64/elf.h

   1 #ifndef __ASM_SH64_ELF_H
   2 #define __ASM_SH64_ELF_H
   3
   4 /*
   5  * This file is subject to the terms and conditions of the GNU General Public
   6  * License.  See the file "COPYING" in the main directory of this archive
   7  * for more details.
   8  *
   9  * include/asm-sh64/elf.h
  10  *
  11  * Copyright (C) 2000, 2001  Paolo Alberelli
  12  *
  13  */
  14
  15 /*
  16  * ELF register definitions..
  17  */
  18
  19 #include <asm/ptrace.h>
  20 #include <asm/user.h>
  21 #include <asm/byteorder.h>
  22
  23 typedef unsigned long elf_greg_t;
  24
  25 #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
  26 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  27
  28 typedef struct user_fpu_struct elf_fpregset_t;
  29
  30 /*
  31  * This is used to ensure we don't load something for the wrong architecture.
  32  */
  33 #define elf_check_arch(x) ( (x)->e_machine == EM_SH )
  34
  35 /*
  36  * These are used to set parameters in the core dumps.
  37  */
  38 #define ELF_CLASS       ELFCLASS32
  39 #ifdef __LITTLE_ENDIAN__
  40 #define ELF_DATA        ELFDATA2LSB
  41 #else
  42 #define ELF_DATA        ELFDATA2MSB
  43 #endif
  44 #define ELF_ARCH        EM_SH
  45
  46 #define USE_ELF_CORE_DUMP
  47 #define ELF_EXEC_PAGESIZE       4096
  48
  49 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
  50    use of this is to invoke "./ld.so someprog" to test out a new version of
  51    the loader.  We need to make sure that it is out of the way of the program
  52    that it will "exec", and that there is sufficient room for the brk.  */
  53
  54 #define ELF_ET_DYN_BASE         (2 * TASK_SIZE / 3)
  55
  56 #define R_SH_DIR32              1
  57 #define R_SH_REL32              2
  58 #define R_SH_IMM_LOW16          246
  59 #define R_SH_IMM_LOW16_PCREL    247
  60 #define R_SH_IMM_MEDLOW16       248
  61 #define R_SH_IMM_MEDLOW16_PCREL 249
  62
  63 #define ELF_CORE_COPY_REGS(_dest,_regs)                         \
  64         memcpy((char *) &_dest, (char *) _regs,                 \
  65                sizeof(struct pt_regs));
  66
  67 /* This yields a mask that user programs can use to figure out what
  68    instruction set this CPU supports.  This could be done in user space,
  69    but it's not easy, and we've already done it here.  */
  70
  71 #define ELF_HWCAP       (0)
  72
  73 /* This yields a string that ld.so will use to load implementation
  74    specific libraries for optimization.  This is more specific in
  75    intent than poking at uname or /proc/cpuinfo.
  76
  77    For the moment, we have only optimizations for the Intel generations,
  78    but that could change... */
  79
  80 #define ELF_PLATFORM  (NULL)
  81
  82 #define ELF_PLAT_INIT(_r, load_addr) \
  83   do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
  84        _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
  85        _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
  86        _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; _r->regs[15]=0; \
  87        _r->regs[16]=0; _r->regs[17]=0; _r->regs[18]=0; _r->regs[19]=0; \
  88        _r->regs[20]=0; _r->regs[21]=0; _r->regs[22]=0; _r->regs[23]=0; \
  89        _r->regs[24]=0; _r->regs[25]=0; _r->regs[26]=0; _r->regs[27]=0; \
  90        _r->regs[28]=0; _r->regs[29]=0; _r->regs[30]=0; _r->regs[31]=0; \
  91        _r->regs[32]=0; _r->regs[33]=0; _r->regs[34]=0; _r->regs[35]=0; \
  92        _r->regs[36]=0; _r->regs[37]=0; _r->regs[38]=0; _r->regs[39]=0; \
  93        _r->regs[40]=0; _r->regs[41]=0; _r->regs[42]=0; _r->regs[43]=0; \
  94        _r->regs[44]=0; _r->regs[45]=0; _r->regs[46]=0; _r->regs[47]=0; \
  95        _r->regs[48]=0; _r->regs[49]=0; _r->regs[50]=0; _r->regs[51]=0; \
  96        _r->regs[52]=0; _r->regs[53]=0; _r->regs[54]=0; _r->regs[55]=0; \
  97        _r->regs[56]=0; _r->regs[57]=0; _r->regs[58]=0; _r->regs[59]=0; \
  98        _r->regs[60]=0; _r->regs[61]=0; _r->regs[62]=0; \
  99        _r->tregs[0]=0; _r->tregs[1]=0; _r->tregs[2]=0; _r->tregs[3]=0; \
 100        _r->tregs[4]=0; _r->tregs[5]=0; _r->tregs[6]=0; _r->tregs[7]=0; \
 101        _r->sr = SR_FD | SR_MMU; } while (0)
 102
 103 #ifdef __KERNEL__
 104 #define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT)
 105 #endif
 106
 107 #endif /* __ASM_SH64_ELF_H */