include/asm-sparc/elf.h

   1 /* $Id: elf.h,v 1.22 2000/07/12 01:27:08 davem Exp $ */
   2 #ifndef __ASMSPARC_ELF_H
   3 #define __ASMSPARC_ELF_H
   4
   5 /*
   6  * ELF register definitions..
   7  */
   8
   9 #include <asm/ptrace.h>
  10
  11 /*
  12  * Sparc section types
  13  */
  14 #define STT_REGISTER            13
  15
  16 /*
  17  * Sparc ELF relocation types
  18  */
  19 #define R_SPARC_NONE            0
  20 #define R_SPARC_8               1
  21 #define R_SPARC_16              2
  22 #define R_SPARC_32              3
  23 #define R_SPARC_DISP8           4
  24 #define R_SPARC_DISP16          5
  25 #define R_SPARC_DISP32          6
  26 #define R_SPARC_WDISP30         7
  27 #define R_SPARC_WDISP22         8
  28 #define R_SPARC_HI22            9
  29 #define R_SPARC_22              10
  30 #define R_SPARC_13              11
  31 #define R_SPARC_LO10            12
  32 #define R_SPARC_GOT10           13
  33 #define R_SPARC_GOT13           14
  34 #define R_SPARC_GOT22           15
  35 #define R_SPARC_PC10            16
  36 #define R_SPARC_PC22            17
  37 #define R_SPARC_WPLT30          18
  38 #define R_SPARC_COPY            19
  39 #define R_SPARC_GLOB_DAT        20
  40 #define R_SPARC_JMP_SLOT        21
  41 #define R_SPARC_RELATIVE        22
  42 #define R_SPARC_UA32            23
  43 #define R_SPARC_PLT32           24
  44 #define R_SPARC_HIPLT22         25
  45 #define R_SPARC_LOPLT10         26
  46 #define R_SPARC_PCPLT32         27
  47 #define R_SPARC_PCPLT22         28
  48 #define R_SPARC_PCPLT10         29
  49 #define R_SPARC_10              30
  50 #define R_SPARC_11              31
  51 #define R_SPARC_64              32
  52 #define R_SPARC_OLO10           33
  53 #define R_SPARC_WDISP16         40
  54 #define R_SPARC_WDISP19         41
  55 #define R_SPARC_7               43
  56 #define R_SPARC_5               44
  57 #define R_SPARC_6               45
  58
  59 /* Bits present in AT_HWCAP, primarily for Sparc32.  */
  60
  61 #define HWCAP_SPARC_FLUSH       1    /* CPU supports flush instruction. */
  62 #define HWCAP_SPARC_STBAR       2
  63 #define HWCAP_SPARC_SWAP        4
  64 #define HWCAP_SPARC_MULDIV      8
  65 #define HWCAP_SPARC_V9          16
  66 #define HWCAP_SPARC_ULTRA3      32
  67
  68 /* For the most part we present code dumps in the format
  69  * Solaris does.
  70  */
  71 typedef unsigned long elf_greg_t;
  72 #define ELF_NGREG 38
  73 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  74
  75 typedef struct {
  76         union {
  77                 unsigned long   pr_regs[32];
  78                 double          pr_dregs[16];
  79         } pr_fr;
  80         unsigned long __unused;
  81         unsigned long   pr_fsr;
  82         unsigned char   pr_qcnt;
  83         unsigned char   pr_q_entrysize;
  84         unsigned char   pr_en;
  85         unsigned int    pr_q[64];
  86 } elf_fpregset_t;
  87
  88 #include <asm/mbus.h>
  89 #include <asm/uaccess.h>
  90
  91 /* Format is:
  92  *      G0 --> G7
  93  *      O0 --> O7
  94  *      L0 --> L7
  95  *      I0 --> I7
  96  *      PSR, PC, nPC, Y, WIM, TBR
  97  */
  98 #define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs)       \
  99 do {    unsigned long *dest = &(__elf_regs[0]);         \
 100         struct pt_regs *src = (__pt_regs);              \
 101         unsigned long __user *sp;                       \
 102         memcpy(&dest[0], &src->u_regs[0],               \
 103                sizeof(unsigned long) * 16);             \
 104         /* Don't try this at home kids... */            \
 105         sp = (unsigned long __user *) src->u_regs[14];  \
 106         copy_from_user(&dest[16], sp,                   \
 107                        sizeof(unsigned long) * 16);     \
 108         dest[32] = src->psr;                            \
 109         dest[33] = src->pc;                             \
 110         dest[34] = src->npc;                            \
 111         dest[35] = src->y;                              \
 112         dest[36] = dest[37] = 0; /* XXX */              \
 113 } while(0); /* Janitors: Don't touch this semicolon. */
 114
 115 #define ELF_CORE_COPY_TASK_REGS(__tsk, __elf_regs)      \
 116         ({ ELF_CORE_COPY_REGS((*(__elf_regs)), (__tsk)->thread.kregs); 1; })
 117
 118 /*
 119  * This is used to ensure we don't load something for the wrong architecture.
 120  */
 121 #define elf_check_arch(x) ((x)->e_machine == EM_SPARC)
 122
 123 /*
 124  * These are used to set parameters in the core dumps.
 125  */
 126 #define ELF_ARCH        EM_SPARC
 127 #define ELF_CLASS       ELFCLASS32
 128 #define ELF_DATA        ELFDATA2MSB
 129
 130 #define USE_ELF_CORE_DUMP
 131 #ifndef CONFIG_SUN4
 132 #define ELF_EXEC_PAGESIZE       4096
 133 #else
 134 #define ELF_EXEC_PAGESIZE       8192
 135 #endif
 136
 137
 138 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
 139    use of this is to invoke "./ld.so someprog" to test out a new version of
 140    the loader.  We need to make sure that it is out of the way of the program
 141    that it will "exec", and that there is sufficient room for the brk.  */
 142
 143 #define ELF_ET_DYN_BASE         (TASK_UNMAPPED_BASE)
 144
 145 /* This yields a mask that user programs can use to figure out what
 146    instruction set this cpu supports.  This can NOT be done in userspace
 147    on Sparc.  */
 148
 149 /* Sun4c has none of the capabilities, most sun4m's have them all.
 150  * XXX This is gross, set some global variable at boot time. -DaveM
 151  */
 152 #define ELF_HWCAP       ((ARCH_SUN4C_SUN4) ? 0 : \
 153                          (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | \
 154                           HWCAP_SPARC_SWAP | \
 155                           ((srmmu_modtype != Cypress && \
 156                             srmmu_modtype != Cypress_vE && \
 157                             srmmu_modtype != Cypress_vD) ? \
 158                            HWCAP_SPARC_MULDIV : 0)))
 159
 160 /* This yields a string that ld.so will use to load implementation
 161    specific libraries for optimization.  This is more specific in
 162    intent than poking at uname or /proc/cpuinfo. */
 163
 164 #define ELF_PLATFORM    (NULL)
 165
 166 #define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
 167
 168 #endif /* !(__ASMSPARC_ELF_H) */