1 #ifndef __ASMARM_ELF_H 2 #define __ASMARM_ELF_H 3 4 #include <asm/hwcap.h> 5 6 /* 7 * ELF register definitions.. 8 */ 9 #include <asm/ptrace.h> 10 #include <asm/user.h> 11 12 struct task_struct; 13 14 typedef unsigned long elf_greg_t; 15 typedef unsigned long elf_freg_t[3]; 16 17 #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t)) 18 typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 19 20 typedef struct user_fp elf_fpregset_t; 21 22 #define EM_ARM 40 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_V4BX 40 56 #define R_ARM_PREL31 42 57 #define R_ARM_MOVW_ABS_NC 43 58 #define R_ARM_MOVT_ABS 44 59 60 #define R_ARM_THM_CALL 10 61 #define R_ARM_THM_JUMP24 30 62 63 /* 64 * These are used to set parameters in the core dumps. 65 */ 66 #define ELF_CLASS ELFCLASS32 67 #ifdef __ARMEB__ 68 #define ELF_DATA ELFDATA2MSB 69 #else 70 #define ELF_DATA ELFDATA2LSB 71 #endif 72 #define ELF_ARCH EM_ARM 73 74 /* 75 * This yields a string that ld.so will use to load implementation 76 * specific libraries for optimization. This is more specific in 77 * intent than poking at uname or /proc/cpuinfo. 78 * 79 * For now we just provide a fairly general string that describes the 80 * processor family. This could be made more specific later if someone 81 * implemented optimisations that require it. 26-bit CPUs give you 82 * "v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't 83 * supported). 32-bit CPUs give you "v3[lb]" for anything based on an 84 * ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1 85 * core. 86 */ 87 #define ELF_PLATFORM_SIZE 8 88 #define ELF_PLATFORM (elf_platform) 89 90 extern char elf_platform[]; 91 92 struct elf32_hdr; 93 94 /* 95 * This is used to ensure we don't load something for the wrong architecture. 96 */ 97 extern int elf_check_arch(const struct elf32_hdr *); 98 #define elf_check_arch elf_check_arch 99 100 extern int arm_elf_read_implies_exec(const struct elf32_hdr *, int); 101 #define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(&(ex), stk) 102 103 struct task_struct; 104 int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs); 105 #define ELF_CORE_COPY_TASK_REGS dump_task_regs 106 107 #define ELF_EXEC_PAGESIZE 4096 108 109 /* This is the location that an ET_DYN program is loaded if exec'ed. Typical 110 use of this is to invoke "./ld.so someprog" to test out a new version of 111 the loader. We need to make sure that it is out of the way of the program 112 that it will "exec", and that there is sufficient room for the brk. */ 113 114 #define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) 115 116 /* When the program starts, a1 contains a pointer to a function to be 117 registered with atexit, as per the SVR4 ABI. A value of 0 means we 118 have no such handler. */ 119 #define ELF_PLAT_INIT(_r, load_addr) (_r)->ARM_r0 = 0 120 121 extern void elf_set_personality(const struct elf32_hdr *); 122 #define SET_PERSONALITY(ex) elf_set_personality(&(ex)) 123 124 #endif 125