include/asm-sparc64/elf.h

   1 /* $Id: elf.h,v 1.1.1.1 2005/04/11 02:50:57 jack Exp $ */
   2 #ifndef __ASM_SPARC64_ELF_H
   3 #define __ASM_SPARC64_ELF_H
   4
   5 /*
   6  * ELF register definitions..
   7  */
   8
   9 #include <asm/ptrace.h>
  10 #ifdef __KERNEL__
  11 #include <asm/processor.h>
  12 #endif
  13
  14 /*
  15  * These are used to set parameters in the core dumps.
  16  */
  17 #ifndef ELF_ARCH
  18 #define ELF_ARCH                EM_SPARCV9
  19 #define ELF_CLASS               ELFCLASS64
  20 #define ELF_DATA                ELFDATA2MSB
  21
  22 typedef unsigned long elf_greg_t;
  23
  24 #define ELF_NGREG 36
  25 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  26 /* Format of 64-bit elf_gregset_t is:
  27  *      G0 --> G7
  28  *      O0 --> O7
  29  *      L0 --> L7
  30  *      I0 --> I7
  31  *      TSTATE
  32  *      TPC
  33  *      TNPC
  34  *      Y
  35  */
  36 #include <asm/psrcompat.h>
  37 #define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs)       \
  38 do {    unsigned long *dest = &(__elf_regs[0]);         \
  39         struct pt_regs *src = (__pt_regs);              \
  40         unsigned long *sp;                              \
  41         int i;                                          \
  42         for(i = 0; i < 16; i++)                         \
  43                 dest[i] = src->u_regs[i];               \
  44         /* Don't try this at home kids... */            \
  45         set_fs(USER_DS);                                \
  46         sp = (unsigned long *)                          \
  47          ((src->u_regs[14] + STACK_BIAS)                \
  48           & 0xfffffffffffffff8UL);                      \
  49         for(i = 0; i < 16; i++)                         \
  50                 __get_user(dest[i+16], &sp[i]);         \
  51         set_fs(KERNEL_DS);                              \
  52         dest[32] = src->tstate;                         \
  53         dest[33] = src->tpc;                            \
  54         dest[34] = src->tnpc;                           \
  55         dest[35] = src->y;                              \
  56 } while (0);
  57
  58 typedef struct {
  59         unsigned long   pr_regs[32];
  60         unsigned long   pr_fsr;
  61         unsigned long   pr_gsr;
  62         unsigned long   pr_fprs;
  63 } elf_fpregset_t;
  64 #endif
  65
  66 /*
  67  * This is used to ensure we don't load something for the wrong architecture.
  68  */
  69 #ifndef elf_check_arch
  70 #define elf_check_arch(x) ((x)->e_machine == ELF_ARCH)  /* Might be EM_SPARCV9 or EM_SPARC */
  71 #endif
  72
  73 #define USE_ELF_CORE_DUMP
  74 #define ELF_EXEC_PAGESIZE       PAGE_SIZE
  75
  76 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
  77    use of this is to invoke "./ld.so someprog" to test out a new version of
  78    the loader.  We need to make sure that it is out of the way of the program
  79    that it will "exec", and that there is sufficient room for the brk.  */
  80
  81 #ifndef ELF_ET_DYN_BASE
  82 #define ELF_ET_DYN_BASE         0x0000010000000000UL
  83 #endif
  84
  85
  86 /* This yields a mask that user programs can use to figure out what
  87    instruction set this cpu supports.  */
  88
  89 /* On Ultra, we support all of the v8 capabilities. */
  90 #define ELF_HWCAP       ((HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | \
  91                           HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV | \
  92                           HWCAP_SPARC_V9) | \
  93                          ((tlb_type == cheetah || tlb_type == cheetah_plus) ? \
  94                           HWCAP_SPARC_ULTRA3 : 0))
  95
  96 /* This yields a string that ld.so will use to load implementation
  97    specific libraries for optimization.  This is more specific in
  98    intent than poking at uname or /proc/cpuinfo.  */
  99
 100 #define ELF_PLATFORM    (NULL)
 101
 102 #ifdef __KERNEL__
 103 #define SET_PERSONALITY(ex, ibcs2)                      \
 104 do {    unsigned char flags = current->thread.flags;    \
 105         if ((ex).e_ident[EI_CLASS] == ELFCLASS32)       \
 106                 flags |= SPARC_FLAG_32BIT;              \
 107         else                                            \
 108                 flags &= ~SPARC_FLAG_32BIT;             \
 109         if (flags != current->thread.flags) {           \
 110                 /* flush_thread will update pgd cache */\
 111                 current->thread.flags |= SPARC_FLAG_ABI_PENDING; \
 112         } else {                                        \
 113                 current->thread.flags &= ~SPARC_FLAG_ABI_PENDING; \
 114         }                                               \
 115         if (ibcs2)                                      \
 116                 set_personality(PER_SVR4);              \
 117         else if (current->personality != PER_LINUX32)   \
 118                 set_personality(PER_LINUX);             \
 119 } while (0)
 120 #endif
 121
 122 #endif /* !(__ASM_SPARC64_ELF_H) */