include/asm-sh/elf.h

   1 #ifndef __ASM_SH_ELF_H
   2 #define __ASM_SH_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 #include <asm/byteorder.h>
  12
  13 typedef unsigned long elf_greg_t;
  14
  15 #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
  16 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  17
  18 #ifdef CONFIG_CPU_SH4
  19 typedef double elf_fpreg_t;
  20 typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
  21 #else /* SH 3 has no floating point regs */
  22 typedef struct { void *null; } elf_fpregset_t;
  23 #endif
  24
  25 /*
  26  * This is used to ensure we don't load something for the wrong architecture.
  27  */
  28 #define elf_check_arch(x) ( (x) == EM_SH )
  29
  30 /*
  31  * These are used to set parameters in the core dumps.
  32  */
  33 #define ELF_CLASS       ELFCLASS32
  34 #ifdef __LITTLE_ENDIAN
  35 #define ELF_DATA        ELFDATA2LSB
  36 #else
  37 #define ELF_DATA        ELFDATA2MSB
  38 #endif
  39 #define ELF_ARCH        EM_SH
  40
  41 #define USE_ELF_CORE_DUMP
  42 #define ELF_EXEC_PAGESIZE       4096
  43
  44 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
  45    use of this is to invoke "./ld.so someprog" to test out a new version of
  46    the loader.  We need to make sure that it is out of the way of the program
  47    that it will "exec", and that there is sufficient room for the brk.  */
  48
  49 #define ELF_ET_DYN_BASE         (2 * TASK_SIZE / 3)
  50
  51
  52 #define ELF_CORE_COPY_REGS(_dest,_regs)                         \
  53         memcpy((char *) &_dest, (char *) _regs,                 \
  54                sizeof(struct pt_regs));
  55
  56 /* This yields a mask that user programs can use to figure out what
  57    instruction set this CPU supports.  This could be done in user space,
  58    but it's not easy, and we've already done it here.  */
  59
  60 #define ELF_HWCAP       (0)
  61
  62 /* This yields a string that ld.so will use to load implementation
  63    specific libraries for optimization.  This is more specific in
  64    intent than poking at uname or /proc/cpuinfo.
  65
  66    For the moment, we have only optimizations for the Intel generations,
  67    but that could change... */
  68
  69 #define ELF_PLATFORM  (NULL)
  70
  71 #ifdef __KERNEL__
  72 #define SET_PERSONALITY(ex, ibcs2) \
  73         current->personality = PER_LINUX_32BIT
  74 #endif
  75
  76 #endif /* __ASM_SH_ELF_H */