1 /* SPDX-License-Identifier: GPL-2.0 */ 1
2 #ifndef __ASMm68k_ELF_H
3 #define __ASMm68k_ELF_H
4
5 /*
6 * ELF register definitions..
7 */
8
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_str
42 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
43
44 typedef struct user_m68kfp_struct elf_fpregset
45
46 /*
47 * This is used to ensure we don't load someth
48 */
49 #define elf_check_arch(x) ((x)->e_machine == E
50
51 /*
52 * These are used to set parameters in the cor
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 re
59 passed in %a1. Although my copy of the ABI
60 is actually used on ASV. */
61 #define ELF_PLAT_INIT(_r, load_addr) _r->a1
62
63 #define ELF_FDPIC_PLAT_INIT(_r, _exec_map_addr
64 do { \
65 (_r)->d3 = _exec_map_addr; \
66 (_r)->d4 = _interp_map_addr; \
67 (_r)->d5 = dynamic_addr; \
68 } while(0)
69
70 #if defined(CONFIG_SUN3) || defined(CONFIG_COL
71 #define ELF_EXEC_PAGESIZE 8192
72 #else
73 #define ELF_EXEC_PAGESIZE 4096
74 #endif
75
76 /* This is the location that an ET_DYN program
77 use of this is to invoke "./ld.so someprog"
78 the loader. We need to make sure that it i
79 that it will "exec", and that there is suff
80
81 #ifndef CONFIG_SUN3
82 #define ELF_ET_DYN_BASE 0xD0000000UL
83 #else
84 #define ELF_ET_DYN_BASE 0x0D800000UL
85 #endif
86
87 #define ELF_CORE_COPY_REGS(pr_reg, regs)
88 /* Bleech. */
89 pr_reg[0] = regs->d1;
90 pr_reg[1] = regs->d2;
91 pr_reg[2] = regs->d3;
92 pr_reg[3] = regs->d4;
93 pr_reg[4] = regs->d5;
94 pr_reg[7] = regs->a0;
95 pr_reg[8] = regs->a1;
96 pr_reg[9] = regs->a2;
97 pr_reg[14] = regs->d0;
98 pr_reg[15] = rdusp();
99 pr_reg[16] = regs->orig_d0;
100 pr_reg[17] = regs->sr;
101 pr_reg[18] = regs->pc;
102 pr_reg[19] = (regs->format << 12) | re
103 {
104 struct switch_stack *sw = ((struct s
105 pr_reg[5] = sw->d6;
106 pr_reg[6] = sw->d7;
107 pr_reg[10] = sw->a3;
108 pr_reg[11] = sw->a4;
109 pr_reg[12] = sw->a5;
110 pr_reg[13] = sw->a6;
111 }
112
113 /* This yields a mask that user programs can u
114 instruction set this cpu supports. */
115
116 #define ELF_HWCAP (0)
117
118 /* This yields a string that ld.so will use to
119 specific libraries for optimization. This
120 intent than poking at uname or /proc/cpuinf
121
122 #define ELF_PLATFORM (NULL)
123
124 #define ELF_FDPIC_CORE_EFLAGS 0
125
126 #endif
127
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