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1da177e4 LT |
1 | #ifndef __ASMm68k_ELF_H |
2 | #define __ASMm68k_ELF_H | |
3 | ||
4 | /* | |
5 | * ELF register definitions.. | |
6 | */ | |
7 | ||
8 | #include <linux/config.h> | |
9 | #include <asm/ptrace.h> | |
10 | #include <asm/user.h> | |
11 | ||
12 | /* | |
13 | * 68k ELF relocation types | |
14 | */ | |
15 | #define R_68K_NONE 0 | |
16 | #define R_68K_32 1 | |
17 | #define R_68K_16 2 | |
18 | #define R_68K_8 3 | |
19 | #define R_68K_PC32 4 | |
20 | #define R_68K_PC16 5 | |
21 | #define R_68K_PC8 6 | |
22 | #define R_68K_GOT32 7 | |
23 | #define R_68K_GOT16 8 | |
24 | #define R_68K_GOT8 9 | |
25 | #define R_68K_GOT32O 10 | |
26 | #define R_68K_GOT16O 11 | |
27 | #define R_68K_GOT8O 12 | |
28 | #define R_68K_PLT32 13 | |
29 | #define R_68K_PLT16 14 | |
30 | #define R_68K_PLT8 15 | |
31 | #define R_68K_PLT32O 16 | |
32 | #define R_68K_PLT16O 17 | |
33 | #define R_68K_PLT8O 18 | |
34 | #define R_68K_COPY 19 | |
35 | #define R_68K_GLOB_DAT 20 | |
36 | #define R_68K_JMP_SLOT 21 | |
37 | #define R_68K_RELATIVE 22 | |
38 | ||
39 | typedef unsigned long elf_greg_t; | |
40 | ||
41 | #define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t)) | |
42 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; | |
43 | ||
44 | typedef struct user_m68kfp_struct elf_fpregset_t; | |
45 | ||
46 | /* | |
47 | * This is used to ensure we don't load something for the wrong architecture. | |
48 | */ | |
49 | #define elf_check_arch(x) ((x)->e_machine == EM_68K) | |
50 | ||
51 | /* | |
52 | * These are used to set parameters in the core dumps. | |
53 | */ | |
54 | #define ELF_CLASS ELFCLASS32 | |
55 | #define ELF_DATA ELFDATA2MSB | |
56 | #define ELF_ARCH EM_68K | |
57 | ||
58 | /* For SVR4/m68k the function pointer to be registered with `atexit' is | |
59 | passed in %a1. Although my copy of the ABI has no such statement, it | |
60 | is actually used on ASV. */ | |
61 | #define ELF_PLAT_INIT(_r, load_addr) _r->a1 = 0 | |
62 | ||
63 | #define USE_ELF_CORE_DUMP | |
64 | #define ELF_EXEC_PAGESIZE 4096 | |
65 | ||
66 | /* This is the location that an ET_DYN program is loaded if exec'ed. Typical | |
67 | use of this is to invoke "./ld.so someprog" to test out a new version of | |
68 | the loader. We need to make sure that it is out of the way of the program | |
69 | that it will "exec", and that there is sufficient room for the brk. */ | |
70 | ||
71 | #define ELF_ET_DYN_BASE 0xD0000000UL | |
72 | ||
73 | #define ELF_CORE_COPY_REGS(pr_reg, regs) \ | |
74 | /* Bleech. */ \ | |
75 | pr_reg[0] = regs->d1; \ | |
76 | pr_reg[1] = regs->d2; \ | |
77 | pr_reg[2] = regs->d3; \ | |
78 | pr_reg[3] = regs->d4; \ | |
79 | pr_reg[4] = regs->d5; \ | |
80 | pr_reg[7] = regs->a0; \ | |
81 | pr_reg[8] = regs->a1; \ | |
82 | pr_reg[14] = regs->d0; \ | |
83 | pr_reg[15] = rdusp(); \ | |
84 | pr_reg[16] = 0 /* regs->orig_d0 */; \ | |
85 | pr_reg[17] = regs->sr; \ | |
86 | pr_reg[18] = regs->pc; \ | |
87 | /* pr_reg[19] = (regs->format << 12) | regs->vector; */ \ | |
88 | { \ | |
89 | struct switch_stack *sw = ((struct switch_stack *)regs) - 1; \ | |
90 | pr_reg[5] = sw->d6; \ | |
91 | pr_reg[6] = sw->d7; \ | |
92 | pr_reg[10] = sw->a3; \ | |
93 | pr_reg[11] = sw->a4; \ | |
94 | pr_reg[12] = sw->a5; \ | |
95 | pr_reg[13] = sw->a6; \ | |
96 | } | |
97 | ||
98 | /* This yields a mask that user programs can use to figure out what | |
99 | instruction set this cpu supports. */ | |
100 | ||
101 | #define ELF_HWCAP (0) | |
102 | ||
103 | /* This yields a string that ld.so will use to load implementation | |
104 | specific libraries for optimization. This is more specific in | |
105 | intent than poking at uname or /proc/cpuinfo. */ | |
106 | ||
107 | #define ELF_PLATFORM (NULL) | |
108 | ||
109 | #ifdef __KERNEL__ | |
110 | #define SET_PERSONALITY(ex, ibcs2) set_personality((ibcs2)?PER_SVR4:PER_LINUX) | |
111 | #endif | |
112 | ||
113 | #endif |