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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 | /* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASMARM_ELF_H
#define __ASMARM_ELF_H
#include <asm/auxvec.h>
#include <asm/hwcap.h>
#include <asm/vdso_datapage.h>
/*
* ELF register definitions..
*/
#include <asm/ptrace.h>
#include <asm/user.h>
struct task_struct;
typedef unsigned long elf_greg_t;
typedef unsigned long elf_freg_t[3];
#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];
typedef struct user_fp elf_fpregset_t;
#define EF_ARM_EABI_MASK 0xff000000
#define EF_ARM_EABI_UNKNOWN 0x00000000
#define EF_ARM_EABI_VER1 0x01000000
#define EF_ARM_EABI_VER2 0x02000000
#define EF_ARM_EABI_VER3 0x03000000
#define EF_ARM_EABI_VER4 0x04000000
#define EF_ARM_EABI_VER5 0x05000000
#define EF_ARM_BE8 0x00800000 /* ABI 4,5 */
#define EF_ARM_LE8 0x00400000 /* ABI 4,5 */
#define EF_ARM_MAVERICK_FLOAT 0x00000800 /* ABI 0 */
#define EF_ARM_VFP_FLOAT 0x00000400 /* ABI 0 */
#define EF_ARM_SOFT_FLOAT 0x00000200 /* ABI 0 */
#define EF_ARM_OLD_ABI 0x00000100 /* ABI 0 */
#define EF_ARM_NEW_ABI 0x00000080 /* ABI 0 */
#define EF_ARM_ALIGN8 0x00000040 /* ABI 0 */
#define EF_ARM_PIC 0x00000020 /* ABI 0 */
#define EF_ARM_MAPSYMSFIRST 0x00000010 /* ABI 2 */
#define EF_ARM_APCS_FLOAT 0x00000010 /* ABI 0, floats in fp regs */
#define EF_ARM_DYNSYMSUSESEGIDX 0x00000008 /* ABI 2 */
#define EF_ARM_APCS_26 0x00000008 /* ABI 0 */
#define EF_ARM_SYMSARESORTED 0x00000004 /* ABI 1,2 */
#define EF_ARM_INTERWORK 0x00000004 /* ABI 0 */
#define EF_ARM_HASENTRY 0x00000002 /* All */
#define EF_ARM_RELEXEC 0x00000001 /* All */
#define R_ARM_NONE 0
#define R_ARM_PC24 1
#define R_ARM_ABS32 2
#define R_ARM_CALL 28
#define R_ARM_JUMP24 29
#define R_ARM_TARGET1 38
#define R_ARM_V4BX 40
#define R_ARM_PREL31 42
#define R_ARM_MOVW_ABS_NC 43
#define R_ARM_MOVT_ABS 44
#define R_ARM_THM_CALL 10
#define R_ARM_THM_JUMP24 30
#define R_ARM_THM_MOVW_ABS_NC 47
#define R_ARM_THM_MOVT_ABS 48
/*
* These are used to set parameters in the core dumps.
*/
#define ELF_CLASS ELFCLASS32
#ifdef __ARMEB__
#define ELF_DATA ELFDATA2MSB
#else
#define ELF_DATA ELFDATA2LSB
#endif
#define ELF_ARCH EM_ARM
/*
* This yields a string that ld.so will use to load implementation
* specific libraries for optimization. This is more specific in
* intent than poking at uname or /proc/cpuinfo.
*
* For now we just provide a fairly general string that describes the
* processor family. This could be made more specific later if someone
* implemented optimisations that require it. 26-bit CPUs give you
* "v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't
* supported). 32-bit CPUs give you "v3[lb]" for anything based on an
* ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1
* core.
*/
#define ELF_PLATFORM_SIZE 8
#define ELF_PLATFORM (elf_platform)
extern char elf_platform[];
struct elf32_hdr;
/*
* This is used to ensure we don't load something for the wrong architecture.
*/
extern int elf_check_arch(const struct elf32_hdr *);
#define elf_check_arch elf_check_arch
#define ELFOSABI_ARM_FDPIC 65 /* ARM FDPIC platform */
#define elf_check_fdpic(x) ((x)->e_ident[EI_OSABI] == ELFOSABI_ARM_FDPIC)
#define elf_check_const_displacement(x) ((x)->e_flags & EF_ARM_PIC)
#define ELF_FDPIC_CORE_EFLAGS 0
#define vmcore_elf64_check_arch(x) (0)
extern int arm_elf_read_implies_exec(int);
#define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(stk)
struct task_struct;
int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs);
#define ELF_CORE_COPY_TASK_REGS dump_task_regs
#define CORE_DUMP_USE_REGSET
#define ELF_EXEC_PAGESIZE 4096
/* This is the base location for PIE (ET_DYN with INTERP) loads. */
#define ELF_ET_DYN_BASE 0x400000UL
/* When the program starts, a1 contains a pointer to a function to be
registered with atexit, as per the SVR4 ABI. A value of 0 means we
have no such handler. */
#define ELF_PLAT_INIT(_r, load_addr) (_r)->ARM_r0 = 0
#define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr, _interp_map_addr, dynamic_addr) \
do { \
(_r)->ARM_r7 = _exec_map_addr; \
(_r)->ARM_r8 = _interp_map_addr; \
(_r)->ARM_r9 = dynamic_addr; \
} while(0)
extern void elf_set_personality(const struct elf32_hdr *);
#define SET_PERSONALITY(ex) elf_set_personality(&(ex))
#ifdef CONFIG_MMU
#ifdef CONFIG_VDSO
#define ARCH_DLINFO \
do { \
NEW_AUX_ENT(AT_SYSINFO_EHDR, \
(elf_addr_t)current->mm->context.vdso); \
} while (0)
#endif
#define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1
struct linux_binprm;
int arch_setup_additional_pages(struct linux_binprm *, int);
#endif
#endif
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