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 #ifdef __KERNEL__
  89 #include <asm/mbus.h>
  90 #include <asm/uaccess.h>
  91
  92 /* Format is:
  93  *      G0 --> G7
  94  *      O0 --> O7
  95  *      L0 --> L7
  96  *      I0 --> I7
  97  *      PSR, PC, nPC, Y, WIM, TBR
  98  */
  99 #define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs)       \
 100 do {    unsigned long *dest = &(__elf_regs[0]);         \
 101         struct pt_regs *src = (__pt_regs);              \
 102         unsigned long __user *sp;                       \
 103         memcpy(&dest[0], &src->u_regs[0],               \
 104                sizeof(unsigned long) * 16);             \
 105         /* Don't try this at home kids... */            \
 106         sp = (unsigned long __user *) src->u_regs[14];  \
 107         copy_from_user(&dest[16], sp,                   \
 108                        sizeof(unsigned long) * 16);     \
 109         dest[32] = src->psr;                            \
 110         dest[33] = src->pc;                             \
 111         dest[34] = src->npc;                            \
 112         dest[35] = src->y;                              \
 113         dest[36] = dest[37] = 0; /* XXX */              \
 114 } while(0); /* Janitors: Don't touch this semicolon. */
 115
 116 #define ELF_CORE_COPY_TASK_REGS(__tsk, __elf_regs)      \
 117         ({ ELF_CORE_COPY_REGS((*(__elf_regs)), (__tsk)->thread.kregs); 1; })
 118
 119 /*
 120  * This is used to ensure we don't load something for the wrong architecture.
 121  */
 122 #define elf_check_arch(x) ((x)->e_machine == EM_SPARC)
 123
 124 /*
 125  * These are used to set parameters in the core dumps.
 126  */
 127 #define ELF_ARCH        EM_SPARC
 128 #define ELF_CLASS       ELFCLASS32
 129 #define ELF_DATA        ELFDATA2MSB
 130
 131 #define USE_ELF_CORE_DUMP
 132 #ifndef CONFIG_SUN4
 133 #define ELF_EXEC_PAGESIZE       4096
 134 #else
 135 #define ELF_EXEC_PAGESIZE       8192
 136 #endif
 137
 138
 139 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
 140    use of this is to invoke "./ld.so someprog" to test out a new version of
 141    the loader.  We need to make sure that it is out of the way of the program
 142    that it will "exec", and that there is sufficient room for the brk.  */
 143
 144 #define ELF_ET_DYN_BASE         (TASK_UNMAPPED_BASE)
 145
 146 /* This yields a mask that user programs can use to figure out what
 147    instruction set this cpu supports.  This can NOT be done in userspace
 148    on Sparc.  */
 149
 150 /* Sun4c has none of the capabilities, most sun4m's have them all.
 151  * XXX This is gross, set some global variable at boot time. -DaveM
 152  */
 153 #define ELF_HWCAP       ((ARCH_SUN4C_SUN4) ? 0 : \
 154                          (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | \
 155                           HWCAP_SPARC_SWAP | \
 156                           ((srmmu_modtype != Cypress && \
 157                             srmmu_modtype != Cypress_vE && \
 158                             srmmu_modtype != Cypress_vD) ? \
 159                            HWCAP_SPARC_MULDIV : 0)))
 160
 161 /* This yields a string that ld.so will use to load implementation
 162    specific libraries for optimization.  This is more specific in
 163    intent than poking at uname or /proc/cpuinfo. */
 164
 165 #define ELF_PLATFORM    (NULL)
 166
 167 #define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
 168
 169 #endif /* __KERNEL__ */
 170
 171 #endif /* !(__ASMSPARC_ELF_H) */