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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | #ifndef __ASMARM_ELF_H |
3 | #define __ASMARM_ELF_H | |
4 | ||
1713ce7c | 5 | #include <asm/auxvec.h> |
f393e99d | 6 | #include <asm/hwcap.h> |
1713ce7c | 7 | #include <asm/vdso_datapage.h> |
f393e99d | 8 | |
1da177e4 LT |
9 | /* |
10 | * ELF register definitions.. | |
11 | */ | |
1da177e4 LT |
12 | #include <asm/ptrace.h> |
13 | #include <asm/user.h> | |
1da177e4 | 14 | |
ea5ce655 AM |
15 | struct task_struct; |
16 | ||
1da177e4 LT |
17 | typedef unsigned long elf_greg_t; |
18 | typedef unsigned long elf_freg_t[3]; | |
19 | ||
4a5222ca RK |
20 | #define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t)) |
21 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; | |
22 | ||
23 | typedef struct user_fp elf_fpregset_t; | |
4a5222ca | 24 | |
8ec53663 RK |
25 | #define EF_ARM_EABI_MASK 0xff000000 |
26 | #define EF_ARM_EABI_UNKNOWN 0x00000000 | |
27 | #define EF_ARM_EABI_VER1 0x01000000 | |
28 | #define EF_ARM_EABI_VER2 0x02000000 | |
29 | #define EF_ARM_EABI_VER3 0x03000000 | |
30 | #define EF_ARM_EABI_VER4 0x04000000 | |
31 | #define EF_ARM_EABI_VER5 0x05000000 | |
32 | ||
33 | #define EF_ARM_BE8 0x00800000 /* ABI 4,5 */ | |
34 | #define EF_ARM_LE8 0x00400000 /* ABI 4,5 */ | |
35 | #define EF_ARM_MAVERICK_FLOAT 0x00000800 /* ABI 0 */ | |
36 | #define EF_ARM_VFP_FLOAT 0x00000400 /* ABI 0 */ | |
37 | #define EF_ARM_SOFT_FLOAT 0x00000200 /* ABI 0 */ | |
38 | #define EF_ARM_OLD_ABI 0x00000100 /* ABI 0 */ | |
39 | #define EF_ARM_NEW_ABI 0x00000080 /* ABI 0 */ | |
40 | #define EF_ARM_ALIGN8 0x00000040 /* ABI 0 */ | |
41 | #define EF_ARM_PIC 0x00000020 /* ABI 0 */ | |
42 | #define EF_ARM_MAPSYMSFIRST 0x00000010 /* ABI 2 */ | |
43 | #define EF_ARM_APCS_FLOAT 0x00000010 /* ABI 0, floats in fp regs */ | |
44 | #define EF_ARM_DYNSYMSUSESEGIDX 0x00000008 /* ABI 2 */ | |
45 | #define EF_ARM_APCS_26 0x00000008 /* ABI 0 */ | |
46 | #define EF_ARM_SYMSARESORTED 0x00000004 /* ABI 1,2 */ | |
47 | #define EF_ARM_INTERWORK 0x00000004 /* ABI 0 */ | |
48 | #define EF_ARM_HASENTRY 0x00000002 /* All */ | |
49 | #define EF_ARM_RELEXEC 0x00000001 /* All */ | |
1da177e4 | 50 | |
ae51e609 PG |
51 | #define R_ARM_NONE 0 |
52 | #define R_ARM_PC24 1 | |
53 | #define R_ARM_ABS32 2 | |
54 | #define R_ARM_CALL 28 | |
55 | #define R_ARM_JUMP24 29 | |
55f0fb6a | 56 | #define R_ARM_TARGET1 38 |
ae51e609 PG |
57 | #define R_ARM_V4BX 40 |
58 | #define R_ARM_PREL31 42 | |
59 | #define R_ARM_MOVW_ABS_NC 43 | |
60 | #define R_ARM_MOVT_ABS 44 | |
1da177e4 | 61 | |
adca6dc2 CM |
62 | #define R_ARM_THM_CALL 10 |
63 | #define R_ARM_THM_JUMP24 30 | |
8dd47741 CM |
64 | #define R_ARM_THM_MOVW_ABS_NC 47 |
65 | #define R_ARM_THM_MOVT_ABS 48 | |
adca6dc2 | 66 | |
1da177e4 LT |
67 | /* |
68 | * These are used to set parameters in the core dumps. | |
69 | */ | |
70 | #define ELF_CLASS ELFCLASS32 | |
71 | #ifdef __ARMEB__ | |
718a30a5 | 72 | #define ELF_DATA ELFDATA2MSB |
1da177e4 | 73 | #else |
718a30a5 | 74 | #define ELF_DATA ELFDATA2LSB |
1da177e4 LT |
75 | #endif |
76 | #define ELF_ARCH EM_ARM | |
77 | ||
4a5222ca RK |
78 | /* |
79 | * This yields a string that ld.so will use to load implementation | |
80 | * specific libraries for optimization. This is more specific in | |
81 | * intent than poking at uname or /proc/cpuinfo. | |
82 | * | |
83 | * For now we just provide a fairly general string that describes the | |
84 | * processor family. This could be made more specific later if someone | |
85 | * implemented optimisations that require it. 26-bit CPUs give you | |
86 | * "v1l" for ARM2 (no SWP) and "v2l" for anything else (ARM1 isn't | |
87 | * supported). 32-bit CPUs give you "v3[lb]" for anything based on an | |
88 | * ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1 | |
89 | * core. | |
90 | */ | |
91 | #define ELF_PLATFORM_SIZE 8 | |
92 | #define ELF_PLATFORM (elf_platform) | |
93 | ||
94 | extern char elf_platform[]; | |
4a5222ca | 95 | |
8ec53663 | 96 | struct elf32_hdr; |
4a5222ca RK |
97 | |
98 | /* | |
8ec53663 | 99 | * This is used to ensure we don't load something for the wrong architecture. |
4a5222ca | 100 | */ |
8ec53663 RK |
101 | extern int elf_check_arch(const struct elf32_hdr *); |
102 | #define elf_check_arch elf_check_arch | |
4a5222ca | 103 | |
4b3bf7ae MW |
104 | #define vmcore_elf64_check_arch(x) (0) |
105 | ||
8ec53663 RK |
106 | extern int arm_elf_read_implies_exec(const struct elf32_hdr *, int); |
107 | #define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(&(ex), stk) | |
6ff6340a | 108 | |
bb35579b | 109 | struct task_struct; |
cde3f860 AB |
110 | int dump_task_regs(struct task_struct *t, elf_gregset_t *elfregs); |
111 | #define ELF_CORE_COPY_TASK_REGS dump_task_regs | |
112 | ||
5be6f62b | 113 | #define CORE_DUMP_USE_REGSET |
1da177e4 LT |
114 | #define ELF_EXEC_PAGESIZE 4096 |
115 | ||
6a9af90a KC |
116 | /* This is the base location for PIE (ET_DYN with INTERP) loads. */ |
117 | #define ELF_ET_DYN_BASE 0x400000UL | |
1da177e4 LT |
118 | |
119 | /* When the program starts, a1 contains a pointer to a function to be | |
120 | registered with atexit, as per the SVR4 ABI. A value of 0 means we | |
121 | have no such handler. */ | |
122 | #define ELF_PLAT_INIT(_r, load_addr) (_r)->ARM_r0 = 0 | |
123 | ||
8ec53663 | 124 | extern void elf_set_personality(const struct elf32_hdr *); |
0b592682 | 125 | #define SET_PERSONALITY(ex) elf_set_personality(&(ex)) |
1da177e4 | 126 | |
8c0cc8a5 | 127 | #ifdef CONFIG_MMU |
1713ce7c NL |
128 | #ifdef CONFIG_VDSO |
129 | #define ARCH_DLINFO \ | |
130 | do { \ | |
131 | NEW_AUX_ENT(AT_SYSINFO_EHDR, \ | |
132 | (elf_addr_t)current->mm->context.vdso); \ | |
133 | } while (0) | |
134 | #endif | |
48be69a0 RK |
135 | #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 |
136 | struct linux_binprm; | |
137 | int arch_setup_additional_pages(struct linux_binprm *, int); | |
8c0cc8a5 | 138 | #endif |
48be69a0 | 139 | |
1da177e4 | 140 | #endif |