arch/arm/include/asm/elf.h

   1 #ifndef __ASMARM_ELF_H
   2 #define __ASMARM_ELF_H
   3
   4 #include <asm/auxvec.h>
   5 #include <asm/hwcap.h>
   6 #include <asm/vdso_datapage.h>
   7
   8 /*
   9  * ELF register definitions..
  10  */
  11 #include <asm/ptrace.h>
  12 #include <asm/user.h>
  13
  14 struct task_struct;
  15
  16 typedef unsigned long elf_greg_t;
  17 typedef unsigned long elf_freg_t[3];
  18
  19 #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
  20 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
  21
  22 typedef struct user_fp elf_fpregset_t;
  23
  24 #define EF_ARM_EABI_MASK        0xff000000
  25 #define EF_ARM_EABI_UNKNOWN     0x00000000
  26 #define EF_ARM_EABI_VER1        0x01000000
  27 #define EF_ARM_EABI_VER2        0x02000000
  28 #define EF_ARM_EABI_VER3        0x03000000
  29 #define EF_ARM_EABI_VER4        0x04000000
  30 #define EF_ARM_EABI_VER5        0x05000000
  31
  32 #define EF_ARM_BE8              0x00800000      /* ABI 4,5 */
  33 #define EF_ARM_LE8              0x00400000      /* ABI 4,5 */
  34 #define EF_ARM_MAVERICK_FLOAT   0x00000800      /* ABI 0 */
  35 #define EF_ARM_VFP_FLOAT        0x00000400      /* ABI 0 */
  36 #define EF_ARM_SOFT_FLOAT       0x00000200      /* ABI 0 */
  37 #define EF_ARM_OLD_ABI          0x00000100      /* ABI 0 */
  38 #define EF_ARM_NEW_ABI          0x00000080      /* ABI 0 */
  39 #define EF_ARM_ALIGN8           0x00000040      /* ABI 0 */
  40 #define EF_ARM_PIC              0x00000020      /* ABI 0 */
  41 #define EF_ARM_MAPSYMSFIRST     0x00000010      /* ABI 2 */
  42 #define EF_ARM_APCS_FLOAT       0x00000010      /* ABI 0, floats in fp regs */
  43 #define EF_ARM_DYNSYMSUSESEGIDX 0x00000008      /* ABI 2 */
  44 #define EF_ARM_APCS_26          0x00000008      /* ABI 0 */
  45 #define EF_ARM_SYMSARESORTED    0x00000004      /* ABI 1,2 */
  46 #define EF_ARM_INTERWORK        0x00000004      /* ABI 0 */
  47 #define EF_ARM_HASENTRY         0x00000002      /* All */
  48 #define EF_ARM_RELEXEC          0x00000001      /* All */
  49
  50 #define R_ARM_NONE              0
  51 #define R_ARM_PC24              1
  52 #define R_ARM_ABS32             2
  53 #define R_ARM_CALL              28
  54 #define R_ARM_JUMP24            29
  55 #define R_ARM_TARGET1           38
  56 #define R_ARM_V4BX              40
  57 #define R_ARM_PREL31            42
  58 #define R_ARM_MOVW_ABS_NC       43
  59 #define R_ARM_MOVT_ABS          44
  60
  61 #define R_ARM_THM_CALL          10
  62 #define R_ARM_THM_JUMP24        30
  63 #define R_ARM_THM_MOVW_ABS_NC   47
  64 #define R_ARM_THM_MOVT_ABS      48
  65
  66 /*
  67  * These are used to set parameters in the core dumps.
  68  */
  69 #define ELF_CLASS       ELFCLASS32
  70 #ifdef __ARMEB__
  71 #define ELF_DATA        ELFDATA2MSB
  72 #else
  73 #define ELF_DATA        ELFDATA2LSB
  74 #endif
  75 #define ELF_ARCH        EM_ARM
  76
  77 /*
  78  * This yields a string that ld.so will use to load implementation
  79  * specific libraries for optimization.  This is more specific in
  80  * intent than poking at uname or /proc/cpuinfo.
  81  *
  82  * For now we just provide a fairly general string that describes the
  83  * processor family.  This could be made more specific later if someone
  84  * implemented optimisations that require it.  26-bit CPUs give you
  85  * "v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't
  86  * supported).  32-bit CPUs give you "v3[lb]" for anything based on an
  87  * ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1
  88  * core.
  89  */
  90 #define ELF_PLATFORM_SIZE 8
  91 #define ELF_PLATFORM    (elf_platform)
  92
  93 extern char elf_platform[];
  94
  95 struct elf32_hdr;
  96
  97 /*
  98  * This is used to ensure we don't load something for the wrong architecture.
  99  */
 100 extern int elf_check_arch(const struct elf32_hdr *);
 101 #define elf_check_arch elf_check_arch
 102
 103 #define vmcore_elf64_check_arch(x) (0)
 104
 105 extern int arm_elf_read_implies_exec(const struct elf32_hdr *, int);
 106 #define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(&(ex), stk)
 107
 108 struct task_struct;
 109 int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
 110 #define ELF_CORE_COPY_TASK_REGS dump_task_regs
 111
 112 #define CORE_DUMP_USE_REGSET
 113 #define ELF_EXEC_PAGESIZE       4096
 114
 115 /* This is the base location for PIE (ET_DYN with INTERP) loads. */
 116 #define ELF_ET_DYN_BASE         0x400000UL
 117
 118 /* When the program starts, a1 contains a pointer to a function to be
 119    registered with atexit, as per the SVR4 ABI.  A value of 0 means we
 120    have no such handler.  */
 121 #define ELF_PLAT_INIT(_r, load_addr)    (_r)->ARM_r0 = 0
 122
 123 extern void elf_set_personality(const struct elf32_hdr *);
 124 #define SET_PERSONALITY(ex)     elf_set_personality(&(ex))
 125
 126 #ifdef CONFIG_MMU
 127 #ifdef CONFIG_VDSO
 128 #define ARCH_DLINFO                                             \
 129 do {                                                            \
 130         NEW_AUX_ENT(AT_SYSINFO_EHDR,                            \
 131                     (elf_addr_t)current->mm->context.vdso);     \
 132 } while (0)
 133 #endif
 134 #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
 135 struct linux_binprm;
 136 int arch_setup_additional_pages(struct linux_binprm *, int);
 137 #endif
 138
 139 #endif