include/asm-sparc64/elf.h

   1 /* $Id: elf.h,v 1.32 2002/02/09 19:49:31 davem 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 #include <asm/uaccess.h>
  13 #endif
  14
  15 /*
  16  * Sparc section types
  17  */
  18 #define STT_REGISTER            13
  19
  20 /*
  21  * Sparc ELF relocation types
  22  */
  23 #define R_SPARC_NONE            0
  24 #define R_SPARC_8               1
  25 #define R_SPARC_16              2
  26 #define R_SPARC_32              3
  27 #define R_SPARC_DISP8           4
  28 #define R_SPARC_DISP16          5
  29 #define R_SPARC_DISP32          6
  30 #define R_SPARC_WDISP30         7
  31 #define R_SPARC_WDISP22         8
  32 #define R_SPARC_HI22            9
  33 #define R_SPARC_22              10
  34 #define R_SPARC_13              11
  35 #define R_SPARC_LO10            12
  36 #define R_SPARC_GOT10           13
  37 #define R_SPARC_GOT13           14
  38 #define R_SPARC_GOT22           15
  39 #define R_SPARC_PC10            16
  40 #define R_SPARC_PC22            17
  41 #define R_SPARC_WPLT30          18
  42 #define R_SPARC_COPY            19
  43 #define R_SPARC_GLOB_DAT        20
  44 #define R_SPARC_JMP_SLOT        21
  45 #define R_SPARC_RELATIVE        22
  46 #define R_SPARC_UA32            23
  47 #define R_SPARC_PLT32           24
  48 #define R_SPARC_HIPLT22         25
  49 #define R_SPARC_LOPLT10         26
  50 #define R_SPARC_PCPLT32         27
  51 #define R_SPARC_PCPLT22         28
  52 #define R_SPARC_PCPLT10         29
  53 #define R_SPARC_10              30
  54 #define R_SPARC_11              31
  55 #define R_SPARC_64              32
  56 #define R_SPARC_OLO10           33
  57 #define R_SPARC_WDISP16         40
  58 #define R_SPARC_WDISP19         41
  59 #define R_SPARC_7               43
  60 #define R_SPARC_5               44
  61 #define R_SPARC_6               45
  62
  63 /* Bits present in AT_HWCAP, primarily for Sparc32.  */
  64
  65 #define HWCAP_SPARC_FLUSH       1    /* CPU supports flush instruction. */
  66 #define HWCAP_SPARC_STBAR       2
  67 #define HWCAP_SPARC_SWAP        4
  68 #define HWCAP_SPARC_MULDIV      8
  69 #define HWCAP_SPARC_V9          16
  70 #define HWCAP_SPARC_ULTRA3      32
  71
  72 /*
  73  * These are used to set parameters in the core dumps.
  74  */
  75 #ifndef ELF_ARCH
  76 #define ELF_ARCH                EM_SPARCV9
  77 #define ELF_CLASS               ELFCLASS64
  78 #define ELF_DATA                ELFDATA2MSB
  79
  80 typedef unsigned long elf_greg_t;
  81
  82 #define ELF_NGREG 36
  83 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  84 /* Format of 64-bit elf_gregset_t is:
  85  *      G0 --> G7
  86  *      O0 --> O7
  87  *      L0 --> L7
  88  *      I0 --> I7
  89  *      TSTATE
  90  *      TPC
  91  *      TNPC
  92  *      Y
  93  */
  94 #define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs)       \
  95 do {    unsigned long *dest = &(__elf_regs[0]);         \
  96         struct pt_regs *src = (__pt_regs);              \
  97         unsigned long __user *sp;                       \
  98         int i;                                          \
  99         for(i = 0; i < 16; i++)                         \
 100                 dest[i] = src->u_regs[i];               \
 101         /* Don't try this at home kids... */            \
 102         sp = (unsigned long __user *)                   \
 103          ((src->u_regs[14] + STACK_BIAS)                \
 104           & 0xfffffffffffffff8UL);                      \
 105         for(i = 0; i < 16; i++)                         \
 106                 __get_user(dest[i+16], &sp[i]);         \
 107         dest[32] = src->tstate;                         \
 108         dest[33] = src->tpc;                            \
 109         dest[34] = src->tnpc;                           \
 110         dest[35] = src->y;                              \
 111 } while (0);
 112
 113 typedef struct {
 114         unsigned long   pr_regs[32];
 115         unsigned long   pr_fsr;
 116         unsigned long   pr_gsr;
 117         unsigned long   pr_fprs;
 118 } elf_fpregset_t;
 119 #endif
 120
 121 #define ELF_CORE_COPY_TASK_REGS(__tsk, __elf_regs)      \
 122         ({ ELF_CORE_COPY_REGS((*(__elf_regs)), task_pt_regs(__tsk)); 1; })
 123
 124 /*
 125  * This is used to ensure we don't load something for the wrong architecture.
 126  */
 127 #ifndef elf_check_arch
 128 #define elf_check_arch(x) ((x)->e_machine == ELF_ARCH)  /* Might be EM_SPARCV9 or EM_SPARC */
 129 #endif
 130
 131 #define USE_ELF_CORE_DUMP
 132 #define ELF_EXEC_PAGESIZE       PAGE_SIZE
 133
 134 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
 135    use of this is to invoke "./ld.so someprog" to test out a new version of
 136    the loader.  We need to make sure that it is out of the way of the program
 137    that it will "exec", and that there is sufficient room for the brk.  */
 138
 139 #ifndef ELF_ET_DYN_BASE
 140 #define ELF_ET_DYN_BASE         0x0000010000000000UL
 141 #endif
 142
 143
 144 /* This yields a mask that user programs can use to figure out what
 145    instruction set this cpu supports.  */
 146
 147 /* On Ultra, we support all of the v8 capabilities. */
 148 #define ELF_HWCAP       ((HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | \
 149                           HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV | \
 150                           HWCAP_SPARC_V9) | \
 151                          ((tlb_type == cheetah || tlb_type == cheetah_plus) ? \
 152                           HWCAP_SPARC_ULTRA3 : 0))
 153
 154 /* This yields a string that ld.so will use to load implementation
 155    specific libraries for optimization.  This is more specific in
 156    intent than poking at uname or /proc/cpuinfo.  */
 157
 158 #define ELF_PLATFORM    (NULL)
 159
 160 #ifdef __KERNEL__
 161 #define SET_PERSONALITY(ex, ibcs2)                      \
 162 do {    unsigned long new_flags = current_thread_info()->flags; \
 163         new_flags &= _TIF_32BIT;                        \
 164         if ((ex).e_ident[EI_CLASS] == ELFCLASS32)       \
 165                 new_flags |= _TIF_32BIT;                \
 166         else                                            \
 167                 new_flags &= ~_TIF_32BIT;               \
 168         if ((current_thread_info()->flags & _TIF_32BIT) \
 169             != new_flags)                               \
 170                 set_thread_flag(TIF_ABI_PENDING);       \
 171         else                                            \
 172                 clear_thread_flag(TIF_ABI_PENDING);     \
 173         /* flush_thread will update pgd cache */        \
 174         if (ibcs2)                                      \
 175                 set_personality(PER_SVR4);              \
 176         else if (current->personality != PER_LINUX32)   \
 177                 set_personality(PER_LINUX);             \
 178 } while (0)
 179 #endif
 180
 181 #endif /* !(__ASM_SPARC64_ELF_H) */