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elf.h (97564) elf.h (114349)
1/*-
2 * Copyright (c) 1996-1997 John D. Polstra.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
1/*-
2 * Copyright (c) 1996-1997 John D. Polstra.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

--- 9 unchanged lines hidden (view full) ---

18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/amd64/include/elf.h 97564 2002-05-30 08:32:18Z dfr $
26 * $FreeBSD: head/sys/amd64/include/elf.h 114349 2003-05-01 01:05:25Z peter $
27 */
28
29#ifndef _MACHINE_ELF_H_
30#define _MACHINE_ELF_H_ 1
31
32/*
27 */
28
29#ifndef _MACHINE_ELF_H_
30#define _MACHINE_ELF_H_ 1
31
32/*
33 * ELF definitions for the i386 architecture.
33 * ELF definitions for the AMD64 architecture.
34 */
35
34 */
35
36#include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */
36#include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */
37
37
38#define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */
38#define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */
39#include <sys/elf_generic.h>
40
39#include <sys/elf_generic.h>
40
41#define ELF_ARCH EM_386
41#define ELF_ARCH EM_X86_64
42
42
43#define ELF_MACHINE_OK(x) ((x) == EM_386 || (x) == EM_486)
43#define ELF_MACHINE_OK(x) ((x) == EM_X86_64)
44
45/*
46 * Auxiliary vector entries for passing information to the interpreter.
47 *
48 * The i386 supplement to the SVR4 ABI specification names this "auxv_t",
49 * but POSIX lays claim to all symbols ending with "_t".
50 */
51
52typedef struct { /* Auxiliary vector entry on initial stack */
44
45/*
46 * Auxiliary vector entries for passing information to the interpreter.
47 *
48 * The i386 supplement to the SVR4 ABI specification names this "auxv_t",
49 * but POSIX lays claim to all symbols ending with "_t".
50 */
51
52typedef struct { /* Auxiliary vector entry on initial stack */
53 int a_type; /* Entry type. */
53 long a_type; /* Entry type. */
54 union {
55 long a_val; /* Integer value. */
56 void *a_ptr; /* Address. */
57 void (*a_fcn)(void); /* Function pointer (not used). */
58 } a_un;
54 union {
55 long a_val; /* Integer value. */
56 void *a_ptr; /* Address. */
57 void (*a_fcn)(void); /* Function pointer (not used). */
58 } a_un;
59} Elf32_Auxinfo;
59} Elf64_Auxinfo;
60
61__ElfType(Auxinfo);
62
63/* Values for a_type. */
64#define AT_NULL 0 /* Terminates the vector. */
65#define AT_IGNORE 1 /* Ignored entry. */
66#define AT_EXECFD 2 /* File descriptor of program to load. */
67#define AT_PHDR 3 /* Program header of program already loaded. */

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93#define AT_EGID 14 /* Effective gid. */
94
95#define AT_COUNT 15 /* Count of defined aux entry types. */
96
97/*
98 * Relocation types.
99 */
100
60
61__ElfType(Auxinfo);
62
63/* Values for a_type. */
64#define AT_NULL 0 /* Terminates the vector. */
65#define AT_IGNORE 1 /* Ignored entry. */
66#define AT_EXECFD 2 /* File descriptor of program to load. */
67#define AT_PHDR 3 /* Program header of program already loaded. */

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93#define AT_EGID 14 /* Effective gid. */
94
95#define AT_COUNT 15 /* Count of defined aux entry types. */
96
97/*
98 * Relocation types.
99 */
100
101#define R_386_NONE 0 /* No relocation. */
102#define R_386_32 1 /* Add symbol value. */
103#define R_386_PC32 2 /* Add PC-relative symbol value. */
104#define R_386_GOT32 3 /* Add PC-relative GOT offset. */
105#define R_386_PLT32 4 /* Add PC-relative PLT offset. */
106#define R_386_COPY 5 /* Copy data from shared object. */
107#define R_386_GLOB_DAT 6 /* Set GOT entry to data address. */
108#define R_386_JMP_SLOT 7 /* Set GOT entry to code address. */
109#define R_386_RELATIVE 8 /* Add load address of shared object. */
110#define R_386_GOTOFF 9 /* Add GOT-relative symbol address. */
111#define R_386_GOTPC 10 /* Add PC-relative GOT table address. */
101#define R_X86_64_NONE 0 /* No relocation. */
102#define R_X86_64_64 1 /* Add 64 bit symbol value. */
103#define R_X86_64_PC32 2 /* PC-relative 32 bit signed sym value. */
104#define R_X86_64_GOT32 3 /* PC-relative 32 bit GOT offset. */
105#define R_X86_64_PLT32 4 /* PC-relative 32 bit PLT offset. */
106#define R_X86_64_COPY 5 /* Copy data from shared object. */
107#define R_X86_64_GLOB_DAT 6 /* Set GOT entry to data address. */
108#define R_X86_64_JMP_SLOT 7 /* Set GOT entry to code address. */
109#define R_X86_64_RELATIVE 8 /* Add load address of shared object. */
110#define R_X86_64_GOTPCREL 9 /* Add 32 bit signed pcrel offset to GOT. */
111#define R_X86_64_32 10 /* Add 32 bit zero extended symbol value */
112#define R_X86_64_32S 11 /* Add 32 bit sign extended symbol value */
113#define R_X86_64_16 12 /* Add 16 bit zero extended symbol value */
114#define R_X86_64_PC16 13 /* Add 16 bit signed extended pc relative symbol value */
115#define R_X86_64_8 14 /* Add 8 bit zero extended symbol value */
116#define R_X86_64_PC8 15 /* Add 8 bit signed extended pc relative symbol value */
112
117
113#define R_386_COUNT 11 /* Count of defined relocation types. */
118#define R_X86_64_COUNT 16 /* Count of defined relocation types. */
114
115/* Define "machine" characteristics */
119
120/* Define "machine" characteristics */
116#define ELF_TARG_CLASS ELFCLASS32
121#define ELF_TARG_CLASS ELFCLASS64
117#define ELF_TARG_DATA ELFDATA2LSB
122#define ELF_TARG_DATA ELFDATA2LSB
118#define ELF_TARG_MACH EM_386
123#define ELF_TARG_MACH EM_X86_64
119#define ELF_TARG_VER 1
120
121#ifdef _KERNEL
122
123/*
124 * On the i386 we load the dynamic linker where a userland call
125 * to mmap(0, ...) would put it. The rationale behind this
126 * calculation is that it leaves room for the heap to grow to
127 * its maximum allowed size.
128 */
129#define ELF_RTLD_ADDR(vmspace) \
130 (round_page((vm_offset_t)(vmspace)->vm_daddr + maxdsiz))
131
132#endif /* _KERNEL */
133#endif /* !_MACHINE_ELF_H_ */
124#define ELF_TARG_VER 1
125
126#ifdef _KERNEL
127
128/*
129 * On the i386 we load the dynamic linker where a userland call
130 * to mmap(0, ...) would put it. The rationale behind this
131 * calculation is that it leaves room for the heap to grow to
132 * its maximum allowed size.
133 */
134#define ELF_RTLD_ADDR(vmspace) \
135 (round_page((vm_offset_t)(vmspace)->vm_daddr + maxdsiz))
136
137#endif /* _KERNEL */
138#endif /* !_MACHINE_ELF_H_ */