elf.h (5ec9407dd1196daaf12b427b351e2cd62d2a16a7) elf.h (8ec53663d2698076468b3e1edc4e1b418bd54de3)
1#ifndef __ASMARM_ELF_H
2#define __ASMARM_ELF_H
3
4#include <asm/hwcap.h>
5
6/*
7 * ELF register definitions..
8 */

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13typedef unsigned long elf_freg_t[3];
14
15#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
16typedef elf_greg_t elf_gregset_t[ELF_NGREG];
17
18typedef struct user_fp elf_fpregset_t;
19
20#define EM_ARM 40
1#ifndef __ASMARM_ELF_H
2#define __ASMARM_ELF_H
3
4#include <asm/hwcap.h>
5
6/*
7 * ELF register definitions..
8 */

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13typedef unsigned long elf_freg_t[3];
14
15#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
16typedef elf_greg_t elf_gregset_t[ELF_NGREG];
17
18typedef struct user_fp elf_fpregset_t;
19
20#define EM_ARM 40
21#define EF_ARM_APCS26 0x08
22#define EF_ARM_SOFT_FLOAT 0x200
23#define EF_ARM_EABI_MASK 0xFF000000
24
21
22#define EF_ARM_EABI_MASK 0xff000000
23#define EF_ARM_EABI_UNKNOWN 0x00000000
24#define EF_ARM_EABI_VER1 0x01000000
25#define EF_ARM_EABI_VER2 0x02000000
26#define EF_ARM_EABI_VER3 0x03000000
27#define EF_ARM_EABI_VER4 0x04000000
28#define EF_ARM_EABI_VER5 0x05000000
29
30#define EF_ARM_BE8 0x00800000 /* ABI 4,5 */
31#define EF_ARM_LE8 0x00400000 /* ABI 4,5 */
32#define EF_ARM_MAVERICK_FLOAT 0x00000800 /* ABI 0 */
33#define EF_ARM_VFP_FLOAT 0x00000400 /* ABI 0 */
34#define EF_ARM_SOFT_FLOAT 0x00000200 /* ABI 0 */
35#define EF_ARM_OLD_ABI 0x00000100 /* ABI 0 */
36#define EF_ARM_NEW_ABI 0x00000080 /* ABI 0 */
37#define EF_ARM_ALIGN8 0x00000040 /* ABI 0 */
38#define EF_ARM_PIC 0x00000020 /* ABI 0 */
39#define EF_ARM_MAPSYMSFIRST 0x00000010 /* ABI 2 */
40#define EF_ARM_APCS_FLOAT 0x00000010 /* ABI 0, floats in fp regs */
41#define EF_ARM_DYNSYMSUSESEGIDX 0x00000008 /* ABI 2 */
42#define EF_ARM_APCS_26 0x00000008 /* ABI 0 */
43#define EF_ARM_SYMSARESORTED 0x00000004 /* ABI 1,2 */
44#define EF_ARM_INTERWORK 0x00000004 /* ABI 0 */
45#define EF_ARM_HASENTRY 0x00000002 /* All */
46#define EF_ARM_RELEXEC 0x00000001 /* All */
47
25#define R_ARM_NONE 0
26#define R_ARM_PC24 1
27#define R_ARM_ABS32 2
28#define R_ARM_CALL 28
29#define R_ARM_JUMP24 29
30
31/*
32 * These are used to set parameters in the core dumps.

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52 * ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1
53 * core.
54 */
55#define ELF_PLATFORM_SIZE 8
56#define ELF_PLATFORM (elf_platform)
57
58extern char elf_platform[];
59
48#define R_ARM_NONE 0
49#define R_ARM_PC24 1
50#define R_ARM_ABS32 2
51#define R_ARM_CALL 28
52#define R_ARM_JUMP24 29
53
54/*
55 * These are used to set parameters in the core dumps.

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75 * ARM6 or ARM7 core and "armv4[lb]" for anything based on a StrongARM-1
76 * core.
77 */
78#define ELF_PLATFORM_SIZE 8
79#define ELF_PLATFORM (elf_platform)
80
81extern char elf_platform[];
82
83struct elf32_hdr;
84
60/*
61 * This is used to ensure we don't load something for the wrong architecture.
62 */
85/*
86 * This is used to ensure we don't load something for the wrong architecture.
87 */
63#define elf_check_arch(x) ((x)->e_machine == EM_ARM && ELF_PROC_OK(x))
88extern int elf_check_arch(const struct elf32_hdr *);
89#define elf_check_arch elf_check_arch
64
90
65/*
66 * 32-bit code is always OK. Some cpus can do 26-bit, some can't.
67 */
68#define ELF_PROC_OK(x) (ELF_THUMB_OK(x) && ELF_26BIT_OK(x))
91extern int arm_elf_read_implies_exec(const struct elf32_hdr *, int);
92#define elf_read_implies_exec(ex,stk) arm_elf_read_implies_exec(&(ex), stk)
69
93
70#define ELF_THUMB_OK(x) \
71 ((elf_hwcap & HWCAP_THUMB && ((x)->e_entry & 1) == 1) || \
72 ((x)->e_entry & 3) == 0)
73
74#define ELF_26BIT_OK(x) \
75 ((elf_hwcap & HWCAP_26BIT && (x)->e_flags & EF_ARM_APCS26) || \
76 ((x)->e_flags & EF_ARM_APCS26) == 0)
77
78#define USE_ELF_CORE_DUMP
79#define ELF_EXEC_PAGESIZE 4096
80
81/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
82 use of this is to invoke "./ld.so someprog" to test out a new version of
83 the loader. We need to make sure that it is out of the way of the program
84 that it will "exec", and that there is sufficient room for the brk. */
85
86#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
87
88/* When the program starts, a1 contains a pointer to a function to be
89 registered with atexit, as per the SVR4 ABI. A value of 0 means we
90 have no such handler. */
91#define ELF_PLAT_INIT(_r, load_addr) (_r)->ARM_r0 = 0
92
94#define USE_ELF_CORE_DUMP
95#define ELF_EXEC_PAGESIZE 4096
96
97/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
98 use of this is to invoke "./ld.so someprog" to test out a new version of
99 the loader. We need to make sure that it is out of the way of the program
100 that it will "exec", and that there is sufficient room for the brk. */
101
102#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
103
104/* When the program starts, a1 contains a pointer to a function to be
105 registered with atexit, as per the SVR4 ABI. A value of 0 means we
106 have no such handler. */
107#define ELF_PLAT_INIT(_r, load_addr) (_r)->ARM_r0 = 0
108
93/*
94 * Since the FPA coprocessor uses CP1 and CP2, and iWMMXt uses CP0
95 * and CP1, we only enable access to the iWMMXt coprocessor if the
96 * binary is EABI or softfloat (and thus, guaranteed not to use
97 * FPA instructions.)
98 */
99#define SET_PERSONALITY(ex, ibcs2) \
100 do { \
101 if ((ex).e_flags & EF_ARM_APCS26) { \
102 set_personality(PER_LINUX); \
103 } else { \
104 set_personality(PER_LINUX_32BIT); \
105 if (elf_hwcap & HWCAP_IWMMXT && (ex).e_flags & (EF_ARM_EABI_MASK | EF_ARM_SOFT_FLOAT)) \
106 set_thread_flag(TIF_USING_IWMMXT); \
107 else \
108 clear_thread_flag(TIF_USING_IWMMXT); \
109 } \
110 } while (0)
109extern void elf_set_personality(const struct elf32_hdr *);
110#define SET_PERSONALITY(ex, ibcs2) elf_set_personality(&(ex))
111
112#endif
111
112#endif