Annotation of sys/arch/mips64/include/exec.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: exec.h,v 1.1 2004/10/18 19:05:36 grange Exp $ */
2:
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: */
28:
29: #ifndef _MIPS64_EXEC_H_
30: #define _MIPS64_EXEC_H_
31:
32: #define __LDPGSZ 4096
33:
34: /*
35: * Define what exec "formats" we should handle.
36: */
37: #define NATIVE_EXEC_ELF
38: #define NATIVE_ELFSIZE 64
39: #define EXEC_SCRIPT
40:
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
53:
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
60:
61: #define _NLIST_DO_ELF
62:
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
71:
72: /* Information taken from MIPS ABI supplemental */
73:
74: /* Architecture dependent Segment types - p_type */
75: #define PT_MIPS_REGINFO 0x70000000 /* Register usage information */
76:
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 */
94:
95: #define DT_PROCNUM (DT_MIPS_RLD_MAP - DT_LOPROC + 1)
96:
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
116:
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 */
123:
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 */
133:
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 */
138:
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;
153:
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
163:
164:
165: /*
166: * Mips relocations.
167: */
168:
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 */
182:
183: #define R_MIPS_64 18
184:
185: #define R_MIPS_REL32_64 ((R_MIPS_64 << 8) | R_MIPS_REL32)
186:
187:
188: #endif /* !_MIPS64_EXEC_H_ */
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