include/asm-sh/elf.h

   1 #ifndef __ASM_SH_ELF_H
   2 #define __ASM_SH_ELF_H
   3
   4 #include <asm/auxvec.h>
   5 #include <asm/ptrace.h>
   6 #include <asm/user.h>
   7
   8 /* SH relocation types  */
   9 #define R_SH_NONE               0
  10 #define R_SH_DIR32              1
  11 #define R_SH_REL32              2
  12 #define R_SH_DIR8WPN            3
  13 #define R_SH_IND12W             4
  14 #define R_SH_DIR8WPL            5
  15 #define R_SH_DIR8WPZ            6
  16 #define R_SH_DIR8BP             7
  17 #define R_SH_DIR8W              8
  18 #define R_SH_DIR8L              9
  19 #define R_SH_SWITCH16           25
  20 #define R_SH_SWITCH32           26
  21 #define R_SH_USES               27
  22 #define R_SH_COUNT              28
  23 #define R_SH_ALIGN              29
  24 #define R_SH_CODE               30
  25 #define R_SH_DATA               31
  26 #define R_SH_LABEL              32
  27 #define R_SH_SWITCH8            33
  28 #define R_SH_GNU_VTINHERIT      34
  29 #define R_SH_GNU_VTENTRY        35
  30 #define R_SH_TLS_GD_32          144
  31 #define R_SH_TLS_LD_32          145
  32 #define R_SH_TLS_LDO_32         146
  33 #define R_SH_TLS_IE_32          147
  34 #define R_SH_TLS_LE_32          148
  35 #define R_SH_TLS_DTPMOD32       149
  36 #define R_SH_TLS_DTPOFF32       150
  37 #define R_SH_TLS_TPOFF32        151
  38 #define R_SH_GOT32              160
  39 #define R_SH_PLT32              161
  40 #define R_SH_COPY               162
  41 #define R_SH_GLOB_DAT           163
  42 #define R_SH_JMP_SLOT           164
  43 #define R_SH_RELATIVE           165
  44 #define R_SH_GOTOFF             166
  45 #define R_SH_GOTPC              167
  46 /* Keep this the last entry.  */
  47 #define R_SH_NUM                256
  48
  49 /*
  50  * ELF register definitions..
  51  */
  52
  53 typedef unsigned long elf_greg_t;
  54
  55 #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
  56 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  57
  58 typedef struct user_fpu_struct elf_fpregset_t;
  59
  60 /*
  61  * This is used to ensure we don't load something for the wrong architecture.
  62  */
  63 #define elf_check_arch(x) ( (x)->e_machine == EM_SH )
  64
  65 /*
  66  * These are used to set parameters in the core dumps.
  67  */
  68 #define ELF_CLASS       ELFCLASS32
  69 #ifdef __LITTLE_ENDIAN__
  70 #define ELF_DATA        ELFDATA2LSB
  71 #else
  72 #define ELF_DATA        ELFDATA2MSB
  73 #endif
  74 #define ELF_ARCH        EM_SH
  75
  76 #define USE_ELF_CORE_DUMP
  77 #define ELF_EXEC_PAGESIZE       PAGE_SIZE
  78
  79 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
  80    use of this is to invoke "./ld.so someprog" to test out a new version of
  81    the loader.  We need to make sure that it is out of the way of the program
  82    that it will "exec", and that there is sufficient room for the brk.  */
  83
  84 #define ELF_ET_DYN_BASE         (2 * TASK_SIZE / 3)
  85
  86
  87 #define ELF_CORE_COPY_REGS(_dest,_regs)                         \
  88         memcpy((char *) &_dest, (char *) _regs,                 \
  89                sizeof(struct pt_regs));
  90
  91 /* This yields a mask that user programs can use to figure out what
  92    instruction set this CPU supports.  This could be done in user space,
  93    but it's not easy, and we've already done it here.  */
  94
  95 #define ELF_HWCAP       (boot_cpu_data.flags)
  96
  97 /* This yields a string that ld.so will use to load implementation
  98    specific libraries for optimization.  This is more specific in
  99    intent than poking at uname or /proc/cpuinfo.
 100
 101    For the moment, we have only optimizations for the Intel generations,
 102    but that could change... */
 103
 104 #define ELF_PLATFORM  (NULL)
 105
 106 #define ELF_PLAT_INIT(_r, load_addr) \
 107   do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
 108        _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
 109        _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
 110        _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; \
 111        _r->sr = SR_FD; } while (0)
 112
 113 #ifdef __KERNEL__
 114 #define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT)
 115 struct task_struct;
 116 extern int dump_task_regs (struct task_struct *, elf_gregset_t *);
 117 extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *);
 118
 119 #define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
 120 #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
 121 #endif
 122
 123 #ifdef CONFIG_VSYSCALL
 124 /* vDSO has arch_setup_additional_pages */
 125 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES
 126 struct linux_binprm;
 127 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
 128                                        int executable_stack);
 129
 130 extern unsigned int vdso_enabled;
 131 extern void __kernel_vsyscall;
 132
 133 #define VDSO_BASE               ((unsigned long)current->mm->context.vdso)
 134 #define VDSO_SYM(x)             (VDSO_BASE + (unsigned long)(x))
 135
 136 /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
 137 #define ARCH_DLINFO                                             \
 138 do {                                                            \
 139         if (vdso_enabled)                                       \
 140                 NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE);        \
 141 } while (0)
 142 #endif /* CONFIG_VSYSCALL */
 143
 144 #endif /* __ASM_SH_ELF_H */