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 #ifdef __KERNEL__
  12 #include <asm/mbus.h>
  13 #include <asm/uaccess.h>
  14 #endif
  15
  16 /*
  17  * Sparc section types
  18  */
  19 #define STT_REGISTER            13
  20
  21 /*
  22  * Sparc ELF relocation types
  23  */
  24 #define R_SPARC_NONE            0
  25 #define R_SPARC_8               1
  26 #define R_SPARC_16              2
  27 #define R_SPARC_32              3
  28 #define R_SPARC_DISP8           4
  29 #define R_SPARC_DISP16          5
  30 #define R_SPARC_DISP32          6
  31 #define R_SPARC_WDISP30         7
  32 #define R_SPARC_WDISP22         8
  33 #define R_SPARC_HI22            9
  34 #define R_SPARC_22              10
  35 #define R_SPARC_13              11
  36 #define R_SPARC_LO10            12
  37 #define R_SPARC_GOT10           13
  38 #define R_SPARC_GOT13           14
  39 #define R_SPARC_GOT22           15
  40 #define R_SPARC_PC10            16
  41 #define R_SPARC_PC22            17
  42 #define R_SPARC_WPLT30          18
  43 #define R_SPARC_COPY            19
  44 #define R_SPARC_GLOB_DAT        20
  45 #define R_SPARC_JMP_SLOT        21
  46 #define R_SPARC_RELATIVE        22
  47 #define R_SPARC_UA32            23
  48 #define R_SPARC_PLT32           24
  49 #define R_SPARC_HIPLT22         25
  50 #define R_SPARC_LOPLT10         26
  51 #define R_SPARC_PCPLT32         27
  52 #define R_SPARC_PCPLT22         28
  53 #define R_SPARC_PCPLT10         29
  54 #define R_SPARC_10              30
  55 #define R_SPARC_11              31
  56 #define R_SPARC_64              32
  57 #define R_SPARC_OLO10           33
  58 #define R_SPARC_WDISP16         40
  59 #define R_SPARC_WDISP19         41
  60 #define R_SPARC_7               43
  61 #define R_SPARC_5               44
  62 #define R_SPARC_6               45
  63
  64 /* Bits present in AT_HWCAP, primarily for Sparc32.  */
  65
  66 #define HWCAP_SPARC_FLUSH       1    /* CPU supports flush instruction. */
  67 #define HWCAP_SPARC_STBAR       2
  68 #define HWCAP_SPARC_SWAP        4
  69 #define HWCAP_SPARC_MULDIV      8
  70 #define HWCAP_SPARC_V9          16
  71 #define HWCAP_SPARC_ULTRA3      32
  72
  73 /* For the most part we present code dumps in the format
  74  * Solaris does.
  75  */
  76 typedef unsigned long elf_greg_t;
  77 #define ELF_NGREG 38
  78 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  79
  80 /* Format is:
  81  *      G0 --> G7
  82  *      O0 --> O7
  83  *      L0 --> L7
  84  *      I0 --> I7
  85  *      PSR, PC, nPC, Y, WIM, TBR
  86  */
  87 #define ELF_CORE_COPY_REGS(__elf_regs, __pt_regs)       \
  88 do {    unsigned long *dest = &(__elf_regs[0]);         \
  89         struct pt_regs *src = (__pt_regs);              \
  90         unsigned long __user *sp;                       \
  91         memcpy(&dest[0], &src->u_regs[0],               \
  92                sizeof(unsigned long) * 16);             \
  93         /* Don't try this at home kids... */            \
  94         sp = (unsigned long __user *) src->u_regs[14];  \
  95         copy_from_user(&dest[16], sp,                   \
  96                        sizeof(unsigned long) * 16);     \
  97         dest[32] = src->psr;                            \
  98         dest[33] = src->pc;                             \
  99         dest[34] = src->npc;                            \
 100         dest[35] = src->y;                              \
 101         dest[36] = dest[37] = 0; /* XXX */              \
 102 } while(0); /* Janitors: Don't touch this colon. */
 103
 104 typedef struct {
 105         union {
 106                 unsigned long   pr_regs[32];
 107                 double          pr_dregs[16];
 108         } pr_fr;
 109         unsigned long __unused;
 110         unsigned long   pr_fsr;
 111         unsigned char   pr_qcnt;
 112         unsigned char   pr_q_entrysize;
 113         unsigned char   pr_en;
 114         unsigned int    pr_q[64];
 115 } elf_fpregset_t;
 116
 117 #define ELF_CORE_COPY_TASK_REGS(__tsk, __elf_regs)      \
 118         ({ ELF_CORE_COPY_REGS((*(__elf_regs)), (__tsk)->thread.kregs); 1; })
 119
 120 /*
 121  * This is used to ensure we don't load something for the wrong architecture.
 122  */
 123 #define elf_check_arch(x) ((x)->e_machine == EM_SPARC)
 124
 125 /*
 126  * These are used to set parameters in the core dumps.
 127  */
 128 #define ELF_ARCH        EM_SPARC
 129 #define ELF_CLASS       ELFCLASS32
 130 #define ELF_DATA        ELFDATA2MSB
 131
 132 #define USE_ELF_CORE_DUMP
 133 #ifndef CONFIG_SUN4
 134 #define ELF_EXEC_PAGESIZE       4096
 135 #else
 136 #define ELF_EXEC_PAGESIZE       8192
 137 #endif
 138
 139
 140 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
 141    use of this is to invoke "./ld.so someprog" to test out a new version of
 142    the loader.  We need to make sure that it is out of the way of the program
 143    that it will "exec", and that there is sufficient room for the brk.  */
 144
 145 #define ELF_ET_DYN_BASE         (TASK_UNMAPPED_BASE)
 146
 147 /* This yields a mask that user programs can use to figure out what
 148    instruction set this cpu supports.  This can NOT be done in userspace
 149    on Sparc.  */
 150
 151 /* Sun4c has none of the capabilities, most sun4m's have them all.
 152  * XXX This is gross, set some global variable at boot time. -DaveM
 153  */
 154 #define ELF_HWCAP       ((ARCH_SUN4C_SUN4) ? 0 : \
 155                          (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR | \
 156                           HWCAP_SPARC_SWAP | \
 157                           ((srmmu_modtype != Cypress && \
 158                             srmmu_modtype != Cypress_vE && \
 159                             srmmu_modtype != Cypress_vD) ? \
 160                            HWCAP_SPARC_MULDIV : 0)))
 161
 162 /* This yields a string that ld.so will use to load implementation
 163    specific libraries for optimization.  This is more specific in
 164    intent than poking at uname or /proc/cpuinfo. */
 165
 166 #define ELF_PLATFORM    (NULL)
 167
 168 #ifdef __KERNEL__
 169 #define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX)
 170 #endif
 171
 172 #endif /* !(__ASMSPARC_ELF_H) */