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 #include <asm/processor.h>
  11 #include <asm/uaccess.h>
  12 #include <asm/spitfire.h>
  13
  14 /*
  15  * Sparc section types
  16  */
  17 #define STT_REGISTER            13
  18
  19 /*
  20  * Sparc ELF relocation types
  21  */
  22 #define R_SPARC_NONE            0
  23 #define R_SPARC_8               1
  24 #define R_SPARC_16              2
  25 #define R_SPARC_32              3
  26 #define R_SPARC_DISP8           4
  27 #define R_SPARC_DISP16          5
  28 #define R_SPARC_DISP32          6
  29 #define R_SPARC_WDISP30         7
  30 #define R_SPARC_WDISP22         8
  31 #define R_SPARC_HI22            9
  32 #define R_SPARC_22              10
  33 #define R_SPARC_13              11
  34 #define R_SPARC_LO10            12
  35 #define R_SPARC_GOT10           13
  36 #define R_SPARC_GOT13           14
  37 #define R_SPARC_GOT22           15
  38 #define R_SPARC_PC10            16
  39 #define R_SPARC_PC22            17
  40 #define R_SPARC_WPLT30          18
  41 #define R_SPARC_COPY            19
  42 #define R_SPARC_GLOB_DAT        20
  43 #define R_SPARC_JMP_SLOT        21
  44 #define R_SPARC_RELATIVE        22
  45 #define R_SPARC_UA32            23
  46 #define R_SPARC_PLT32           24
  47 #define R_SPARC_HIPLT22         25
  48 #define R_SPARC_LOPLT10         26
  49 #define R_SPARC_PCPLT32         27
  50 #define R_SPARC_PCPLT22         28
  51 #define R_SPARC_PCPLT10         29
  52 #define R_SPARC_10              30
  53 #define R_SPARC_11              31
  54 #define R_SPARC_64              32
  55 #define R_SPARC_OLO10           33
  56 #define R_SPARC_WDISP16         40
  57 #define R_SPARC_WDISP19         41
  58 #define R_SPARC_7               43
  59 #define R_SPARC_5               44
  60 #define R_SPARC_6               45
  61
  62 /* Bits present in AT_HWCAP, primarily for Sparc32.  */
  63
  64 #define HWCAP_SPARC_FLUSH       1    /* CPU supports flush instruction. */
  65 #define HWCAP_SPARC_STBAR       2
  66 #define HWCAP_SPARC_SWAP        4
  67 #define HWCAP_SPARC_MULDIV      8
  68 #define HWCAP_SPARC_V9          16
  69 #define HWCAP_SPARC_ULTRA3      32
  70 #define HWCAP_SPARC_BLKINIT     64
  71 #define HWCAP_SPARC_N2          128
  72
  73 #define CORE_DUMP_USE_REGSET
  74
  75 /*
  76  * These are used to set parameters in the core dumps.
  77  */
  78 #define ELF_ARCH                EM_SPARCV9
  79 #define ELF_CLASS               ELFCLASS64
  80 #define ELF_DATA                ELFDATA2MSB
  81
  82 /* Format of 64-bit elf_gregset_t is:
  83  *      G0 --> G7
  84  *      O0 --> O7
  85  *      L0 --> L7
  86  *      I0 --> I7
  87  *      TSTATE
  88  *      TPC
  89  *      TNPC
  90  *      Y
  91  */
  92 typedef unsigned long elf_greg_t;
  93 #define ELF_NGREG 36
  94 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  95
  96 typedef struct {
  97         unsigned long   pr_regs[32];
  98         unsigned long   pr_fsr;
  99         unsigned long   pr_gsr;
 100         unsigned long   pr_fprs;
 101 } elf_fpregset_t;
 102
 103 /* Format of 32-bit elf_gregset_t is:
 104  *      G0 --> G7
 105  *      O0 --> O7
 106  *      L0 --> L7
 107  *      I0 --> I7
 108  *      PSR, PC, nPC, Y, WIM, TBR
 109  */
 110 typedef unsigned int compat_elf_greg_t;
 111 #define COMPAT_ELF_NGREG 38
 112 typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
 113
 114 typedef struct {
 115         union {
 116                 unsigned int    pr_regs[32];
 117                 unsigned long   pr_dregs[16];
 118         } pr_fr;
 119         unsigned int __unused;
 120         unsigned int    pr_fsr;
 121         unsigned char   pr_qcnt;
 122         unsigned char   pr_q_entrysize;
 123         unsigned char   pr_en;
 124         unsigned int    pr_q[64];
 125 } compat_elf_fpregset_t;
 126
 127 /* UltraSparc extensions.  Still unused, but will be eventually.  */
 128 typedef struct {
 129         unsigned int pr_type;
 130         unsigned int pr_align;
 131         union {
 132                 struct {
 133                         union {
 134                                 unsigned int    pr_regs[32];
 135                                 unsigned long   pr_dregs[16];
 136                                 long double     pr_qregs[8];
 137                         } pr_xfr;
 138                 } pr_v8p;
 139                 unsigned int    pr_xfsr;
 140                 unsigned int    pr_fprs;
 141                 unsigned int    pr_xg[8];
 142                 unsigned int    pr_xo[8];
 143                 unsigned long   pr_tstate;
 144                 unsigned int    pr_filler[8];
 145         } pr_un;
 146 } elf_xregset_t;
 147
 148 /*
 149  * This is used to ensure we don't load something for the wrong architecture.
 150  */
 151 #define elf_check_arch(x)               ((x)->e_machine == ELF_ARCH)
 152 #define compat_elf_check_arch(x)        ((x)->e_machine == EM_SPARC || \
 153                                          (x)->e_machine == EM_SPARC32PLUS)
 154 #define compat_start_thread             start_thread32
 155
 156 #define USE_ELF_CORE_DUMP
 157 #define ELF_EXEC_PAGESIZE       PAGE_SIZE
 158
 159 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
 160    use of this is to invoke "./ld.so someprog" to test out a new version of
 161    the loader.  We need to make sure that it is out of the way of the program
 162    that it will "exec", and that there is sufficient room for the brk.  */
 163
 164 #define ELF_ET_DYN_BASE         0x0000010000000000UL
 165 #define COMPAT_ELF_ET_DYN_BASE  0x0000000070000000UL
 166
 167
 168 /* This yields a mask that user programs can use to figure out what
 169    instruction set this cpu supports.  */
 170
 171 /* On Ultra, we support all of the v8 capabilities. */
 172 static inline unsigned int sparc64_elf_hwcap(void)
 173 {
 174         unsigned int cap = (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR |
 175                             HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV |
 176                             HWCAP_SPARC_V9);
 177
 178         if (tlb_type == cheetah || tlb_type == cheetah_plus)
 179                 cap |= HWCAP_SPARC_ULTRA3;
 180         else if (tlb_type == hypervisor) {
 181                 if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 ||
 182                     sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
 183                         cap |= HWCAP_SPARC_BLKINIT;
 184                 if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
 185                         cap |= HWCAP_SPARC_N2;
 186         }
 187
 188         return cap;
 189 }
 190
 191 #define ELF_HWCAP       sparc64_elf_hwcap();
 192
 193 /* This yields a string that ld.so will use to load implementation
 194    specific libraries for optimization.  This is more specific in
 195    intent than poking at uname or /proc/cpuinfo.  */
 196
 197 #define ELF_PLATFORM    (NULL)
 198
 199 #define SET_PERSONALITY(ex, ibcs2)                      \
 200 do {    unsigned long new_flags = current_thread_info()->flags; \
 201         new_flags &= _TIF_32BIT;                        \
 202         if ((ex).e_ident[EI_CLASS] == ELFCLASS32)       \
 203                 new_flags |= _TIF_32BIT;                \
 204         else                                            \
 205                 new_flags &= ~_TIF_32BIT;               \
 206         if ((current_thread_info()->flags & _TIF_32BIT) \
 207             != new_flags)                               \
 208                 set_thread_flag(TIF_ABI_PENDING);       \
 209         else                                            \
 210                 clear_thread_flag(TIF_ABI_PENDING);     \
 211         /* flush_thread will update pgd cache */        \
 212         if (ibcs2)                                      \
 213                 set_personality(PER_SVR4);              \
 214         else if (current->personality != PER_LINUX32)   \
 215                 set_personality(PER_LINUX);             \
 216 } while (0)
 217
 218 #endif /* !(__ASM_SPARC64_ELF_H) */