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 14struct task_struct; 15 16typedef unsigned long elf_greg_t; 17typedef unsigned long elf_freg_t[3]; 18 19#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t)) 20typedef elf_greg_t elf_gregset_t[ELF_NGREG]; 21 22typedef 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 93extern char elf_platform[]; 94 95struct elf32_hdr; 96 97/* 98 * This is used to ensure we don't load something for the wrong architecture. 99 */ 100extern 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 105extern 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 108struct task_struct; 109int 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 location that an ET_DYN program is loaded if exec'ed. Typical 116 use of this is to invoke "./ld.so someprog" to test out a new version of 117 the loader. We need to make sure that it is out of the way of the program 118 that it will "exec", and that there is sufficient room for the brk. */ 119 120#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) 121 122/* When the program starts, a1 contains a pointer to a function to be 123 registered with atexit, as per the SVR4 ABI. A value of 0 means we 124 have no such handler. */ 125#define ELF_PLAT_INIT(_r, load_addr) (_r)->ARM_r0 = 0 126 127extern void elf_set_personality(const struct elf32_hdr *); 128#define SET_PERSONALITY(ex) elf_set_personality(&(ex)) 129 130#ifdef CONFIG_MMU 131#ifdef CONFIG_VDSO 132#define ARCH_DLINFO \ 133do { \ 134 NEW_AUX_ENT(AT_SYSINFO_EHDR, \ 135 (elf_addr_t)current->mm->context.vdso); \ 136} while (0) 137#endif 138#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 139struct linux_binprm; 140int arch_setup_additional_pages(struct linux_binprm *, int); 141#endif 142 143#endif 144