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1 | #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 | ||
68 | typedef unsigned long elf_greg_t; | |
69 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; | |
70 | ||
71 | /* We have no FP mumumu. */ | |
72 | typedef double elf_fpreg_t; | |
73 | typedef 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 | ||
1da177e4 | 132 | #define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX) |
1da177e4 LT |
133 | |
134 | #endif /* _ASM_M32R__ELF_H */ |