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1da177e4 LT |
1 | /* elf.h: FR-V ELF definitions |
2 | * | |
3 | * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved. | |
4 | * Written by David Howells (dhowells@redhat.com) | |
5 | * - Derived from include/asm-m68knommu/elf.h | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or | |
8 | * modify it under the terms of the GNU General Public License | |
9 | * as published by the Free Software Foundation; either version | |
10 | * 2 of the License, or (at your option) any later version. | |
11 | */ | |
12 | #ifndef __ASM_ELF_H | |
13 | #define __ASM_ELF_H | |
14 | ||
1da177e4 LT |
15 | #include <asm/ptrace.h> |
16 | #include <asm/user.h> | |
17 | ||
18 | struct elf32_hdr; | |
19 | ||
20 | /* | |
21 | * ELF header e_flags defines. | |
22 | */ | |
23 | #define EF_FRV_GPR_MASK 0x00000003 /* mask for # of gprs */ | |
24 | #define EF_FRV_GPR32 0x00000001 /* Only uses GR on 32-register */ | |
25 | #define EF_FRV_GPR64 0x00000002 /* Only uses GR on 64-register */ | |
26 | #define EF_FRV_FPR_MASK 0x0000000c /* mask for # of fprs */ | |
27 | #define EF_FRV_FPR32 0x00000004 /* Only uses FR on 32-register */ | |
28 | #define EF_FRV_FPR64 0x00000008 /* Only uses FR on 64-register */ | |
29 | #define EF_FRV_FPR_NONE 0x0000000C /* Uses software floating-point */ | |
30 | #define EF_FRV_DWORD_MASK 0x00000030 /* mask for dword support */ | |
31 | #define EF_FRV_DWORD_YES 0x00000010 /* Assumes stack aligned to 8-byte boundaries. */ | |
32 | #define EF_FRV_DWORD_NO 0x00000020 /* Assumes stack aligned to 4-byte boundaries. */ | |
33 | #define EF_FRV_DOUBLE 0x00000040 /* Uses double instructions. */ | |
34 | #define EF_FRV_MEDIA 0x00000080 /* Uses media instructions. */ | |
35 | #define EF_FRV_PIC 0x00000100 /* Uses position independent code. */ | |
36 | #define EF_FRV_NON_PIC_RELOCS 0x00000200 /* Does not use position Independent code. */ | |
37 | #define EF_FRV_MULADD 0x00000400 /* -mmuladd */ | |
38 | #define EF_FRV_BIGPIC 0x00000800 /* -fPIC */ | |
39 | #define EF_FRV_LIBPIC 0x00001000 /* -mlibrary-pic */ | |
40 | #define EF_FRV_G0 0x00002000 /* -G 0, no small data ptr */ | |
41 | #define EF_FRV_NOPACK 0x00004000 /* -mnopack */ | |
42 | #define EF_FRV_FDPIC 0x00008000 /* -mfdpic */ | |
43 | #define EF_FRV_CPU_MASK 0xff000000 /* specific cpu bits */ | |
44 | #define EF_FRV_CPU_GENERIC 0x00000000 /* Set CPU type is FR-V */ | |
45 | #define EF_FRV_CPU_FR500 0x01000000 /* Set CPU type is FR500 */ | |
46 | #define EF_FRV_CPU_FR300 0x02000000 /* Set CPU type is FR300 */ | |
47 | #define EF_FRV_CPU_SIMPLE 0x03000000 /* SIMPLE */ | |
48 | #define EF_FRV_CPU_TOMCAT 0x04000000 /* Tomcat, FR500 prototype */ | |
49 | #define EF_FRV_CPU_FR400 0x05000000 /* Set CPU type is FR400 */ | |
50 | #define EF_FRV_CPU_FR550 0x06000000 /* Set CPU type is FR550 */ | |
51 | #define EF_FRV_CPU_FR405 0x07000000 /* Set CPU type is FR405 */ | |
52 | #define EF_FRV_CPU_FR450 0x08000000 /* Set CPU type is FR450 */ | |
53 | ||
54 | /* | |
55 | * FR-V ELF relocation types | |
56 | */ | |
57 | ||
58 | ||
59 | /* | |
60 | * ELF register definitions.. | |
61 | */ | |
62 | typedef unsigned long elf_greg_t; | |
63 | ||
64 | #define ELF_NGREG (sizeof(struct pt_regs) / sizeof(elf_greg_t)) | |
65 | typedef elf_greg_t elf_gregset_t[ELF_NGREG]; | |
66 | ||
6d8c4e3b | 67 | typedef struct user_fpmedia_regs elf_fpregset_t; |
1da177e4 LT |
68 | |
69 | /* | |
70 | * This is used to ensure we don't load something for the wrong architecture. | |
71 | */ | |
72 | extern int elf_check_arch(const struct elf32_hdr *hdr); | |
73 | ||
74 | #define elf_check_fdpic(x) ((x)->e_flags & EF_FRV_FDPIC && !((x)->e_flags & EF_FRV_NON_PIC_RELOCS)) | |
75 | #define elf_check_const_displacement(x) ((x)->e_flags & EF_FRV_PIC) | |
76 | ||
77 | /* | |
78 | * These are used to set parameters in the core dumps. | |
79 | */ | |
80 | #define ELF_CLASS ELFCLASS32 | |
81 | #define ELF_DATA ELFDATA2MSB | |
82 | #define ELF_ARCH EM_FRV | |
83 | ||
84 | #define ELF_PLAT_INIT(_r) \ | |
85 | do { \ | |
86 | __kernel_frame0_ptr->gr16 = 0; \ | |
87 | __kernel_frame0_ptr->gr17 = 0; \ | |
88 | __kernel_frame0_ptr->gr18 = 0; \ | |
89 | __kernel_frame0_ptr->gr19 = 0; \ | |
90 | __kernel_frame0_ptr->gr20 = 0; \ | |
91 | __kernel_frame0_ptr->gr21 = 0; \ | |
92 | __kernel_frame0_ptr->gr22 = 0; \ | |
93 | __kernel_frame0_ptr->gr23 = 0; \ | |
94 | __kernel_frame0_ptr->gr24 = 0; \ | |
95 | __kernel_frame0_ptr->gr25 = 0; \ | |
96 | __kernel_frame0_ptr->gr26 = 0; \ | |
97 | __kernel_frame0_ptr->gr27 = 0; \ | |
98 | __kernel_frame0_ptr->gr29 = 0; \ | |
99 | } while(0) | |
100 | ||
101 | #define ELF_FDPIC_PLAT_INIT(_regs, _exec_map_addr, _interp_map_addr, _dynamic_addr) \ | |
102 | do { \ | |
103 | __kernel_frame0_ptr->gr16 = _exec_map_addr; \ | |
104 | __kernel_frame0_ptr->gr17 = _interp_map_addr; \ | |
105 | __kernel_frame0_ptr->gr18 = _dynamic_addr; \ | |
106 | __kernel_frame0_ptr->gr19 = 0; \ | |
107 | __kernel_frame0_ptr->gr20 = 0; \ | |
108 | __kernel_frame0_ptr->gr21 = 0; \ | |
109 | __kernel_frame0_ptr->gr22 = 0; \ | |
110 | __kernel_frame0_ptr->gr23 = 0; \ | |
111 | __kernel_frame0_ptr->gr24 = 0; \ | |
112 | __kernel_frame0_ptr->gr25 = 0; \ | |
113 | __kernel_frame0_ptr->gr26 = 0; \ | |
114 | __kernel_frame0_ptr->gr27 = 0; \ | |
115 | __kernel_frame0_ptr->gr29 = 0; \ | |
116 | } while(0) | |
117 | ||
118 | #define USE_ELF_CORE_DUMP | |
6d8c4e3b | 119 | #define ELF_FDPIC_CORE_EFLAGS EF_FRV_FDPIC |
1da177e4 LT |
120 | #define ELF_EXEC_PAGESIZE 16384 |
121 | ||
122 | /* This is the location that an ET_DYN program is loaded if exec'ed. Typical | |
123 | use of this is to invoke "./ld.so someprog" to test out a new version of | |
124 | the loader. We need to make sure that it is out of the way of the program | |
125 | that it will "exec", and that there is sufficient room for the brk. */ | |
126 | ||
127 | #define ELF_ET_DYN_BASE 0x08000000UL | |
128 | ||
1da177e4 LT |
129 | /* This yields a mask that user programs can use to figure out what |
130 | instruction set this cpu supports. */ | |
131 | ||
132 | #define ELF_HWCAP (0) | |
133 | ||
134 | /* This yields a string that ld.so will use to load implementation | |
135 | specific libraries for optimization. This is more specific in | |
136 | intent than poking at uname or /proc/cpuinfo. */ | |
137 | ||
138 | #define ELF_PLATFORM (NULL) | |
139 | ||
0b592682 | 140 | #define SET_PERSONALITY(ex) set_personality(PER_LINUX) |
1da177e4 LT |
141 | |
142 | #endif |