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