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 12struct task_struct; 13 14typedef unsigned long elf_greg_t; 15typedef unsigned long elf_freg_t[3]; 16 17#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t)) 18typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 19 20typedef 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#define R_ARM_THM_MOVW_ABS_NC 47 63#define R_ARM_THM_MOVT_ABS 48 64 65/* 66 * These are used to set parameters in the core dumps. 67 */ 68#define ELF_CLASS ELFCLASS32 69#ifdef __ARMEB__ 70#define ELF_DATA ELFDATA2MSB 71#else 72#define ELF_DATA ELFDATA2LSB 73#endif 74#define ELF_ARCH EM_ARM 75 76/* 77 * This yields a string that ld.so will use to load implementation 78 * specific libraries for optimization. This is more specific in 79 * intent than poking at uname or /proc/cpuinfo. 80 * 81 * For now we just provide a fairly general string that describes the 82 * processor family. This could be made more specific later if someone 83 * implemented optimisations that require it. 26-bit CPUs give you 84 * "v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't 85 * supported). 32-bit CPUs give you "v3[lb]" for anything based on an 86 * ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1 87 * core. 88 */ 89#define ELF_PLATFORM_SIZE 8 90#define ELF_PLATFORM (elf_platform) 91 92extern char elf_platform[]; 93 94struct elf32_hdr; 95 96/* 97 * This is used to ensure we don't load something for the wrong architecture. 98 */ 99extern int elf_check_arch(const struct elf32_hdr *); 100#define elf_check_arch elf_check_arch 101 102extern int arm_elf_read_implies_exec(const struct elf32_hdr *, int); 103#define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(&(ex), stk) 104 105struct task_struct; 106int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs); 107#define ELF_CORE_COPY_TASK_REGS dump_task_regs 108 109#define ELF_EXEC_PAGESIZE 4096 110 111/* This is the location that an ET_DYN program is loaded if exec'ed. Typical 112 use of this is to invoke "./ld.so someprog" to test out a new version of 113 the loader. We need to make sure that it is out of the way of the program 114 that it will "exec", and that there is sufficient room for the brk. */ 115 116#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) 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 123extern void elf_set_personality(const struct elf32_hdr *); 124#define SET_PERSONALITY(ex) elf_set_personality(&(ex)) 125 126struct mm_struct; 127extern unsigned long arch_randomize_brk(struct mm_struct *mm); 128#define arch_randomize_brk arch_randomize_brk 129 130#endif 131