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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef _ASM_M32R__ELF_H
2#define _ASM_M32R__ELF_H
3
4/*
5 * ELF-specific definitions.
6 *
7 * Copyright (C) 1999-2004, Renesas Technology Corp.
8 * Hirokazu Takata <takata at linux-m32r.org>
9 */
10
11#include <asm/ptrace.h>
12#include <asm/user.h>
13#include <asm/page.h>
14
15/* M32R relocation types */
16#define R_M32R_NONE 0
17#define R_M32R_16 1
18#define R_M32R_32 2
19#define R_M32R_24 3
20#define R_M32R_10_PCREL 4
21#define R_M32R_18_PCREL 5
22#define R_M32R_26_PCREL 6
23#define R_M32R_HI16_ULO 7
24#define R_M32R_HI16_SLO 8
25#define R_M32R_LO16 9
26#define R_M32R_SDA16 10
27#define R_M32R_GNU_VTINHERIT 11
28#define R_M32R_GNU_VTENTRY 12
29
30#define R_M32R_16_RELA 33
31#define R_M32R_32_RELA 34
32#define R_M32R_24_RELA 35
33#define R_M32R_10_PCREL_RELA 36
34#define R_M32R_18_PCREL_RELA 37
35#define R_M32R_26_PCREL_RELA 38
36#define R_M32R_HI16_ULO_RELA 39
37#define R_M32R_HI16_SLO_RELA 40
38#define R_M32R_LO16_RELA 41
39#define R_M32R_SDA16_RELA 42
40#define R_M32R_RELA_GNU_VTINHERIT 43
41#define R_M32R_RELA_GNU_VTENTRY 44
42
43#define R_M32R_GOT24 48
44#define R_M32R_26_PLTREL 49
45#define R_M32R_COPY 50
46#define R_M32R_GLOB_DAT 51
47#define R_M32R_JMP_SLOT 52
48#define R_M32R_RELATIVE 53
49#define R_M32R_GOTOFF 54
50#define R_M32R_GOTPC24 55
51#define R_M32R_GOT16_HI_ULO 56
52#define R_M32R_GOT16_HI_SLO 57
53#define R_M32R_GOT16_LO 58
54#define R_M32R_GOTPC_HI_ULO 59
55#define R_M32R_GOTPC_HI_SLO 60
56#define R_M32R_GOTPC_LO 61
57#define R_M32R_GOTOFF_HI_ULO 62
58#define R_M32R_GOTOFF_HI_SLO 63
59#define R_M32R_GOTOFF_LO 64
60
61#define R_M32R_NUM 256
62
63/*
64 * ELF register definitions..
65 */
66#define ELF_NGREG (sizeof (struct pt_regs) / sizeof(elf_greg_t))
67
68typedef unsigned long elf_greg_t;
69typedef elf_greg_t elf_gregset_t[ELF_NGREG];
70
71/* We have no FP mumumu. */
72typedef double elf_fpreg_t;
73typedef elf_fpreg_t elf_fpregset_t;
74
75/*
76 * This is used to ensure we don't load something for the wrong architecture.
77 */
78#define elf_check_arch(x) \
79 (((x)->e_machine == EM_M32R) || ((x)->e_machine == EM_CYGNUS_M32R))
80
81/*
82 * These are used to set parameters in the core dumps.
83 */
84#define ELF_CLASS ELFCLASS32
85#if defined(__LITTLE_ENDIAN)
86#define ELF_DATA ELFDATA2LSB
87#elif defined(__BIG_ENDIAN)
88#define ELF_DATA ELFDATA2MSB
89#else
90#error no endian defined
91#endif
92#define ELF_ARCH EM_M32R
93
94/* r0 is set by ld.so to a pointer to a function which might be
95 * registered using 'atexit'. This provides a mean for the dynamic
96 * linker to call DT_FINI functions for shared libraries that have
97 * been loaded before the code runs.
98 *
99 * So that we can use the same startup file with static executables,
100 * we start programs with a value of 0 to indicate that there is no
101 * such function.
102 */
103#define ELF_PLAT_INIT(_r, load_addr) (_r)->r0 = 0
104
105#define USE_ELF_CORE_DUMP
106#define ELF_EXEC_PAGESIZE PAGE_SIZE
107
108/*
109 * This is the location that an ET_DYN program is loaded if exec'ed.
110 * Typical use of this is to invoke "./ld.so someprog" to test out a
111 * new version of the loader. We need to make sure that it is out of
112 * the way of the program that it will "exec", and that there is
113 * sufficient room for the brk.
114 */
115#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2)
116
117/* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
118 now struct_user_regs, they are different) */
119
120#define ELF_CORE_COPY_REGS(pr_reg, regs) \
121 memcpy((char *)pr_reg, (char *)regs, sizeof (struct pt_regs));
122
123/* This yields a mask that user programs can use to figure out what
124 instruction set this CPU supports. */
125#define ELF_HWCAP (0)
126
127/* This yields a string that ld.so will use to load implementation
128 specific libraries for optimization. This is more specific in
129 intent than poking at uname or /proc/cpuinfo. */
130#define ELF_PLATFORM (NULL)
131
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133
134#endif /* _ASM_M32R__ELF_H */