include/asm-ppc/elf.h

   1 #ifndef __PPC_ELF_H
   2 #define __PPC_ELF_H
   3
   4 /*
   5  * ELF register definitions..
   6  */
   7 #include <asm/ptrace.h>
   8
   9 #define ELF_NGREG       48      /* includes nip, msr, lr, etc. */
  10 #define ELF_NFPREG      33      /* includes fpscr */
  11 #define ELF_NVRREG      33      /* includes vscr */
  12
  13 /*
  14  * This is used to ensure we don't load something for the wrong architecture.
  15  */
  16 #define elf_check_arch(x) ((x)->e_machine == EM_PPC)
  17
  18 /*
  19  * These are used to set parameters in the core dumps.
  20  */
  21 #define ELF_ARCH        EM_PPC
  22 #define ELF_CLASS       ELFCLASS32
  23 #define ELF_DATA        ELFDATA2MSB
  24
  25 #define USE_ELF_CORE_DUMP
  26 #define ELF_EXEC_PAGESIZE       4096
  27
  28 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
  29    use of this is to invoke "./ld.so someprog" to test out a new version of
  30    the loader.  We need to make sure that it is out of the way of the program
  31    that it will "exec", and that there is sufficient room for the brk.  */
  32
  33 #define ELF_ET_DYN_BASE         (0x08000000)
  34
  35 typedef unsigned long elf_greg_t;
  36 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  37
  38 typedef double elf_fpreg_t;
  39 typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
  40
  41 #ifdef __KERNEL__
  42 /* Altivec registers */
  43 typedef vector128 elf_vrreg_t;
  44 typedef elf_vrreg_t elf_vrregset_t[ELF_NVRREG];
  45 #endif /* __KERNEL__ */
  46
  47 #define ELF_CORE_COPY_REGS(gregs, regs) \
  48         memcpy(gregs, regs, \
  49                sizeof(struct pt_regs) < sizeof(elf_gregset_t)? \
  50                sizeof(struct pt_regs): sizeof(elf_gregset_t));
  51
  52
  53 /* This yields a mask that user programs can use to figure out what
  54    instruction set this cpu supports.  This could be done in userspace,
  55    but it's not easy, and we've already done it here.  */
  56
  57 #define ELF_HWCAP       (0)
  58
  59 /* This yields a string that ld.so will use to load implementation
  60    specific libraries for optimization.  This is more specific in
  61    intent than poking at uname or /proc/cpuinfo.
  62
  63    For the moment, we have only optimizations for the Intel generations,
  64    but that could change... */
  65
  66 #define ELF_PLATFORM    (NULL)
  67
  68 #ifdef __KERNEL__
  69 #define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
  70 #endif
  71
  72 #endif