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 (particularly SHcompact) 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 /* SHmedia relocs */
  47 #define R_SH_IMM_LOW16          246
  48 #define R_SH_IMM_LOW16_PCREL    247
  49 #define R_SH_IMM_MEDLOW16       248
  50 #define R_SH_IMM_MEDLOW16_PCREL 249
  51 /* Keep this the last entry.  */
  52 #define R_SH_NUM                256
  53
  54 /*
  55  * ELF register definitions..
  56  */
  57
  58 typedef unsigned long elf_greg_t;
  59
  60 #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
  61 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  62
  63 typedef struct user_fpu_struct elf_fpregset_t;
  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 #ifdef __KERNEL__
  77 /*
  78  * This is used to ensure we don't load something for the wrong architecture.
  79  */
  80 #define elf_check_arch(x) ( (x)->e_machine == EM_SH )
  81
  82 #define USE_ELF_CORE_DUMP
  83 #define ELF_EXEC_PAGESIZE       PAGE_SIZE
  84
  85 /* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
  86    use of this is to invoke "./ld.so someprog" to test out a new version of
  87    the loader.  We need to make sure that it is out of the way of the program
  88    that it will "exec", and that there is sufficient room for the brk.  */
  89
  90 #define ELF_ET_DYN_BASE         (2 * TASK_SIZE / 3)
  91
  92 #define ELF_CORE_COPY_REGS(_dest,_regs)                         \
  93         memcpy((char *) &_dest, (char *) _regs,                 \
  94                sizeof(struct pt_regs));
  95
  96 /* This yields a mask that user programs can use to figure out what
  97    instruction set this CPU supports.  This could be done in user space,
  98    but it's not easy, and we've already done it here.  */
  99
 100 #define ELF_HWCAP       (boot_cpu_data.flags)
 101
 102 /* This yields a string that ld.so will use to load implementation
 103    specific libraries for optimization.  This is more specific in
 104    intent than poking at uname or /proc/cpuinfo.
 105
 106    For the moment, we have only optimizations for the Intel generations,
 107    but that could change... */
 108
 109 #define ELF_PLATFORM    (utsname()->machine)
 110
 111 #ifdef __SH5__
 112 #define ELF_PLAT_INIT(_r, load_addr) \
 113   do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
 114        _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
 115        _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
 116        _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; _r->regs[15]=0; \
 117        _r->regs[16]=0; _r->regs[17]=0; _r->regs[18]=0; _r->regs[19]=0; \
 118        _r->regs[20]=0; _r->regs[21]=0; _r->regs[22]=0; _r->regs[23]=0; \
 119        _r->regs[24]=0; _r->regs[25]=0; _r->regs[26]=0; _r->regs[27]=0; \
 120        _r->regs[28]=0; _r->regs[29]=0; _r->regs[30]=0; _r->regs[31]=0; \
 121        _r->regs[32]=0; _r->regs[33]=0; _r->regs[34]=0; _r->regs[35]=0; \
 122        _r->regs[36]=0; _r->regs[37]=0; _r->regs[38]=0; _r->regs[39]=0; \
 123        _r->regs[40]=0; _r->regs[41]=0; _r->regs[42]=0; _r->regs[43]=0; \
 124        _r->regs[44]=0; _r->regs[45]=0; _r->regs[46]=0; _r->regs[47]=0; \
 125        _r->regs[48]=0; _r->regs[49]=0; _r->regs[50]=0; _r->regs[51]=0; \
 126        _r->regs[52]=0; _r->regs[53]=0; _r->regs[54]=0; _r->regs[55]=0; \
 127        _r->regs[56]=0; _r->regs[57]=0; _r->regs[58]=0; _r->regs[59]=0; \
 128        _r->regs[60]=0; _r->regs[61]=0; _r->regs[62]=0; \
 129        _r->tregs[0]=0; _r->tregs[1]=0; _r->tregs[2]=0; _r->tregs[3]=0; \
 130        _r->tregs[4]=0; _r->tregs[5]=0; _r->tregs[6]=0; _r->tregs[7]=0; \
 131        _r->sr = SR_FD | SR_MMU; } while (0)
 132 #else
 133 #define ELF_PLAT_INIT(_r, load_addr) \
 134   do { _r->regs[0]=0; _r->regs[1]=0; _r->regs[2]=0; _r->regs[3]=0; \
 135        _r->regs[4]=0; _r->regs[5]=0; _r->regs[6]=0; _r->regs[7]=0; \
 136        _r->regs[8]=0; _r->regs[9]=0; _r->regs[10]=0; _r->regs[11]=0; \
 137        _r->regs[12]=0; _r->regs[13]=0; _r->regs[14]=0; \
 138        _r->sr = SR_FD; } while (0)
 139 #endif
 140
 141 #define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT)
 142 struct task_struct;
 143 extern int dump_task_regs (struct task_struct *, elf_gregset_t *);
 144 extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *);
 145
 146 #define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
 147 #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
 148
 149 #ifdef CONFIG_VSYSCALL
 150 /* vDSO has arch_setup_additional_pages */
 151 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES
 152 struct linux_binprm;
 153 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
 154                                        int executable_stack);
 155
 156 extern unsigned int vdso_enabled;
 157 extern void __kernel_vsyscall;
 158
 159 #define VDSO_BASE               ((unsigned long)current->mm->context.vdso)
 160 #define VDSO_SYM(x)             (VDSO_BASE + (unsigned long)(x))
 161
 162 #define VSYSCALL_AUX_ENT                                        \
 163         if (vdso_enabled)                                       \
 164                 NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE);
 165 #else
 166 #define VSYSCALL_AUX_ENT
 167 #endif /* CONFIG_VSYSCALL */
 168
 169 #ifdef CONFIG_SH_FPU
 170 #define FPU_AUX_ENT     NEW_AUX_ENT(AT_FPUCW, FPSCR_INIT)
 171 #else
 172 #define FPU_AUX_ENT
 173 #endif
 174
 175 extern int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;
 176
 177 /* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
 178 #define ARCH_DLINFO                                             \
 179 do {                                                            \
 180         /* Optional FPU initialization */                       \
 181         FPU_AUX_ENT;                                            \
 182                                                                 \
 183         /* Optional vsyscall entry */                           \
 184         VSYSCALL_AUX_ENT;                                       \
 185                                                                 \
 186         /* Cache desc */                                        \
 187         NEW_AUX_ENT(AT_L1I_CACHESHAPE, l1i_cache_shape);        \
 188         NEW_AUX_ENT(AT_L1D_CACHESHAPE, l1d_cache_shape);        \
 189         NEW_AUX_ENT(AT_L2_CACHESHAPE, l2_cache_shape);          \
 190 } while (0)
 191
 192 #endif /* __KERNEL__ */
 193 #endif /* __ASM_SH_ELF_H */