1 /* $OpenBSD: exec.h,v 1.1 2004/10/18 19:05:36 grange Exp $ */
3 /*
4 * Copyright (c) 1996-2004 Per Fogelstrom, Opsycon AB
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
16 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
19 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 */
29 #ifndef _MIPS64_EXEC_H_
30 #define _MIPS64_EXEC_H_
32 #define __LDPGSZ 4096
34 /*
35 * Define what exec "formats" we should handle.
36 */
37 #define NATIVE_EXEC_ELF
38 #define NATIVE_ELFSIZE 64
39 #define EXEC_SCRIPT
41 /*
42 * If included from sys/exec.h define kernels ELF format.
43 */
44 #ifdef __LP64__
45 #define ARCH_ELFSIZE 64
46 #define DB_ELFSIZE 64
47 #define ELF_TARG_CLASS ELFCLASS64
48 #else
49 #define ARCH_ELFSIZE 32
50 #define DB_ELFSIZE 32
51 #define ELF_TARG_CLASS ELFCLASS32
52 #endif
54 #if defined(__MIPSEB__)
55 #define ELF_TARG_DATA ELFDATA2MSB
56 #else
57 #define ELF_TARG_DATA ELFDATA2LSB
58 #endif
59 #define ELF_TARG_MACH EM_MIPS
61 #define _NLIST_DO_ELF
63 #if defined(_LP64)
64 #define _KERN_DO_ELF64
65 #if defined(COMPAT_O32)
66 #define _KERN_DO_ELF
67 #endif
68 #else
69 #define _KERN_DO_ELF
70 #endif
72 /* Information taken from MIPS ABI supplemental */
74 /* Architecture dependent Segment types - p_type */
75 #define PT_MIPS_REGINFO 0x70000000 /* Register usage information */
77 /* Architecture dependent d_tag field for Elf32_Dyn. */
78 #define DT_MIPS_RLD_VERSION 0x70000001 /* Runtime Linker Interface ID */
79 #define DT_MIPS_TIME_STAMP 0x70000002 /* Timestamp */
80 #define DT_MIPS_ICHECKSUM 0x70000003 /* Cksum of ext. str. and com. sizes */
81 #define DT_MIPS_IVERSION 0x70000004 /* Version string (string tbl index) */
82 #define DT_MIPS_FLAGS 0x70000005 /* Flags */
83 #define DT_MIPS_BASE_ADDRESS 0x70000006 /* Segment base address */
84 #define DT_MIPS_CONFLICT 0x70000008 /* Adr of .conflict section */
85 #define DT_MIPS_LIBLIST 0x70000009 /* Address of .liblist section */
86 #define DT_MIPS_LOCAL_GOTNO 0x7000000a /* Number of local .GOT entries */
87 #define DT_MIPS_CONFLICTNO 0x7000000b /* Number of .conflict entries */
88 #define DT_MIPS_LIBLISTNO 0x70000010 /* Number of .liblist entries */
89 #define DT_MIPS_SYMTABNO 0x70000011 /* Number of .dynsym entries */
90 #define DT_MIPS_UNREFEXTNO 0x70000012 /* First external DYNSYM */
91 #define DT_MIPS_GOTSYM 0x70000013 /* First GOT entry in .dynsym */
92 #define DT_MIPS_HIPAGENO 0x70000014 /* Number of GOT page table entries */
93 #define DT_MIPS_RLD_MAP 0x70000016 /* Address of debug map pointer */
95 #define DT_PROCNUM (DT_MIPS_RLD_MAP - DT_LOPROC + 1)
97 /*
98 * Legal values for e_flags field of Elf32_Ehdr.
99 */
100 #define EF_MIPS_NOREORDER 0x00000001 /* .noreorder was used */
101 #define EF_MIPS_PIC 0x00000002 /* Contains PIC code */
102 #define EF_MIPS_CPIC 0x00000004 /* Uses PIC calling sequence */
103 #define EF_MIPS_ABI2 0x00000020 /* -n32 on Irix 6 */
104 #define EF_MIPS_32BITMODE 0x00000100 /* 64 bit in 32 bit mode... */
105 #define EF_MIPS_ARCH 0xf0000000 /* MIPS architecture level */
106 #define E_MIPS_ARCH_1 0x00000000
107 #define E_MIPS_ARCH_2 0x10000000
108 #define E_MIPS_ARCH_3 0x20000000
109 #define E_MIPS_ARCH_4 0x30000000
110 #define EF_MIPS_ABI 0x0000f000 /* ABI level */
111 #define E_MIPS_ABI_NONE 0x00000000 /* ABI level not set */
112 #define E_MIPS_ABI_O32 0x00001000
113 #define E_MIPS_ABI_O64 0x00002000
114 #define E_MIPS_ABI_EABI32 0x00004000
115 #define E_MIPS_ABI_EABI64 0x00004000
117 /*
118 * Mips special sections.
119 */
120 #define SHN_MIPS_ACOMMON 0xff00 /* Allocated common symbols */
121 #define SHN_MIPS_SCOMMON 0xff03 /* Small common symbols */
122 #define SHN_MIPS_SUNDEFINED 0xff04 /* Small undefined symbols */
124 /*
125 * Legal values for sh_type field of Elf32_Shdr.
126 */
127 #define SHT_MIPS_LIBLIST 0x70000000 /* Shared objects used in link */
128 #define SHT_MIPS_CONFLICT 0x70000002 /* Conflicting symbols */
129 #define SHT_MIPS_GPTAB 0x70000003 /* Global data area sizes */
130 #define SHT_MIPS_UCODE 0x70000004 /* Reserved for SGI/MIPS compilers */
131 #define SHT_MIPS_DEBUG 0x70000005 /* MIPS ECOFF debugging information */
132 #define SHT_MIPS_REGINFO 0x70000006 /* Register usage information */
134 /*
135 * Legal values for sh_flags field of Elf32_Shdr.
136 */
137 #define SHF_MIPS_GPREL 0x10000000 /* Must be part of global data area */
139 #if 0
140 /*
141 * Entries found in sections of type SHT_MIPS_GPTAB.
142 */
143 typedef union {
144 struct {
145 Elf32_Word gt_current_g_value; /* -G val used in compilation */
146 Elf32_Word gt_unused; /* Not used */
147 } gt_header; /* First entry in section */
148 struct {
149 Elf32_Word gt_g_value; /* If this val were used for -G */
150 Elf32_Word gt_bytes; /* This many bytes would be used */
151 } gt_entry; /* Subsequent entries in section */
152 } Elf32_gptab;
154 /*
155 * Entry found in sections of type SHT_MIPS_REGINFO.
156 */
157 typedef struct {
158 Elf32_Word ri_gprmask; /* General registers used */
159 Elf32_Word ri_cprmask[4]; /* Coprocessor registers used */
160 Elf32_Sword ri_gp_value; /* $gp register value */
161 } Elf32_RegInfo;
162 #endif
165 /*
166 * Mips relocations.
167 */
169 #define R_MIPS_NONE 0 /* No reloc */
170 #define R_MIPS_16 1 /* Direct 16 bit */
171 #define R_MIPS_32 2 /* Direct 32 bit */
172 #define R_MIPS_REL32 3 /* PC relative 32 bit */
173 #define R_MIPS_26 4 /* Direct 26 bit shifted */
174 #define R_MIPS_HI16 5 /* High 16 bit */
175 #define R_MIPS_LO16 6 /* Low 16 bit */
176 #define R_MIPS_GPREL16 7 /* GP relative 16 bit */
177 #define R_MIPS_LITERAL 8 /* 16 bit literal entry */
178 #define R_MIPS_GOT16 9 /* 16 bit GOT entry */
179 #define R_MIPS_PC16 10 /* PC relative 16 bit */
180 #define R_MIPS_CALL16 11 /* 16 bit GOT entry for function */
181 #define R_MIPS_GPREL32 12 /* GP relative 32 bit */
183 #define R_MIPS_64 18
185 #define R_MIPS_REL32_64 ((R_MIPS_64 << 8) | R_MIPS_REL32)
188 #endif /* !_MIPS64_EXEC_H_ */