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  1 a84cbb2a 2004-04-19 devnull /*

  2 a84cbb2a 2004-04-19 devnull  * Copyright (c) 2004 Russ Cox.  See LICENSE.

  3 a84cbb2a 2004-04-19 devnull  */

  4 a84cbb2a 2004-04-19 devnull 

  5 a84cbb2a 2004-04-19 devnull /* /home/rsc/papers/elfXXelf.pdf */

  6 a84cbb2a 2004-04-19 devnull 

  7 a84cbb2a 2004-04-19 devnull typedef struct Elf Elf;

  8 a84cbb2a 2004-04-19 devnull typedef struct ElfHdr ElfHdr;

  9 a84cbb2a 2004-04-19 devnull typedef struct ElfSect ElfSect;

 10 a84cbb2a 2004-04-19 devnull typedef struct ElfProg ElfProg;

 11 a84cbb2a 2004-04-19 devnull typedef struct ElfNote ElfNote;

 12 a84cbb2a 2004-04-19 devnull typedef struct ElfSym ElfSym;

 13 a84cbb2a 2004-04-19 devnull 

 14 a84cbb2a 2004-04-19 devnull enum

 15 a84cbb2a 2004-04-19 devnull {

 16 a84cbb2a 2004-04-19 devnull 	ElfClassNone = 0,

 17 a84cbb2a 2004-04-19 devnull 	ElfClass32,

 18 a84cbb2a 2004-04-19 devnull 	ElfClass64,

 19 a84cbb2a 2004-04-19 devnull 

 20 a84cbb2a 2004-04-19 devnull 	ElfDataNone = 0,

 21 a84cbb2a 2004-04-19 devnull 	ElfDataLsb,

 22 a84cbb2a 2004-04-19 devnull 	ElfDataMsb,

 23 a84cbb2a 2004-04-19 devnull 

 24 a84cbb2a 2004-04-19 devnull 	ElfTypeNone = 0,

 25 a84cbb2a 2004-04-19 devnull 	ElfTypeRelocatable,

 26 a84cbb2a 2004-04-19 devnull 	ElfTypeExecutable,

 27 a84cbb2a 2004-04-19 devnull 	ElfTypeSharedObject,

 28 a84cbb2a 2004-04-19 devnull 	ElfTypeCore,

 29 a84cbb2a 2004-04-19 devnull 	/* 0xFF00 - 0xFFFF reserved for processor-specific types */

 30 a84cbb2a 2004-04-19 devnull 

 31 a84cbb2a 2004-04-19 devnull 	ElfMachNone = 0,

 32 a84cbb2a 2004-04-19 devnull 	ElfMach32100,		/* AT&T WE 32100 */

 33 a84cbb2a 2004-04-19 devnull 	ElfMachSparc,		/* SPARC */

 34 a84cbb2a 2004-04-19 devnull 	ElfMach386,		/* Intel 80386 */

 35 a84cbb2a 2004-04-19 devnull 	ElfMach68000,		/* Motorola 68000 */

 36 a84cbb2a 2004-04-19 devnull 	ElfMach88000,		/* Motorola 88000 */

 37 a84cbb2a 2004-04-19 devnull 	ElfMach486,		/* Intel 80486, no longer used */

 38 a84cbb2a 2004-04-19 devnull 	ElfMach860,		/* Intel 80860 */

 39 a84cbb2a 2004-04-19 devnull 	ElfMachMips,		/* MIPS RS3000 */

 40 a84cbb2a 2004-04-19 devnull 	ElfMachS370,		/* IBM System/370 */

 41 a84cbb2a 2004-04-19 devnull 	ElfMachMipsLe,	/* MIPS RS3000 LE */

 42 a84cbb2a 2004-04-19 devnull 	ElfMachParisc = 15,		/* HP PA RISC */

 43 a84cbb2a 2004-04-19 devnull 	ElfMachVpp500 = 17,	/* Fujitsu VPP500 */

 44 a84cbb2a 2004-04-19 devnull 	ElfMachSparc32Plus,	/* SPARC V8+ */

 45 a84cbb2a 2004-04-19 devnull 	ElfMach960,		/* Intel 80960 */

 46 a84cbb2a 2004-04-19 devnull 	ElfMachPower,		/* PowerPC */

 47 a84cbb2a 2004-04-19 devnull 	ElfMachPower64,	/* PowerPC 64 */

 48 a84cbb2a 2004-04-19 devnull 	ElfMachS390,		/* IBM System/390 */

 49 a84cbb2a 2004-04-19 devnull 	ElfMachV800 = 36,	/* NEC V800 */

 50 a84cbb2a 2004-04-19 devnull 	ElfMachFr20,		/* Fujitsu FR20 */

 51 a84cbb2a 2004-04-19 devnull 	ElfMachRh32,		/* TRW RH-32 */

 52 a84cbb2a 2004-04-19 devnull 	ElfMachRce,		/* Motorola RCE */

 53 a84cbb2a 2004-04-19 devnull 	ElfMachArm,		/* ARM */

 54 a84cbb2a 2004-04-19 devnull 	ElfMachAlpha,		/* Digital Alpha */

 55 a84cbb2a 2004-04-19 devnull 	ElfMachSH,		/* Hitachi SH */

 56 a84cbb2a 2004-04-19 devnull 	ElfMachSparc9,		/* SPARC V9 */

 57 443d6288 2012-02-19 rsc 	ElfMachAmd64 = 62,	/* x86-64 */

 58 a84cbb2a 2004-04-19 devnull 	/* and the list goes on... */

 59 a84cbb2a 2004-04-19 devnull 

 60 a84cbb2a 2004-04-19 devnull 	ElfAbiNone = 0,

 61 a84cbb2a 2004-04-19 devnull 	ElfAbiSystemV = 0,	/* [sic] */

 62 a84cbb2a 2004-04-19 devnull 	ElfAbiHPUX,

 63 a84cbb2a 2004-04-19 devnull 	ElfAbiNetBSD,

 64 a84cbb2a 2004-04-19 devnull 	ElfAbiLinux,

 65 a84cbb2a 2004-04-19 devnull 	ElfAbiSolaris = 6,

 66 a84cbb2a 2004-04-19 devnull 	ElfAbiAix,

 67 a84cbb2a 2004-04-19 devnull 	ElfAbiIrix,

 68 a84cbb2a 2004-04-19 devnull 	ElfAbiFreeBSD,

 69 a84cbb2a 2004-04-19 devnull 	ElfAbiTru64,

 70 a84cbb2a 2004-04-19 devnull 	ElfAbiModesto,

 71 a84cbb2a 2004-04-19 devnull 	ElfAbiOpenBSD,

 72 a84cbb2a 2004-04-19 devnull 	ElfAbiARM = 97,

 73 a84cbb2a 2004-04-19 devnull 	ElfAbiEmbedded = 255,

 74 a84cbb2a 2004-04-19 devnull 

 75 a84cbb2a 2004-04-19 devnull 	/* some of sections 0xFF00 - 0xFFFF reserved for various things */

 76 a84cbb2a 2004-04-19 devnull 	ElfSectNone = 0,

 77 a84cbb2a 2004-04-19 devnull 	ElfSectProgbits,

 78 a84cbb2a 2004-04-19 devnull 	ElfSectSymtab,

 79 a84cbb2a 2004-04-19 devnull 	ElfSectStrtab,

 80 a84cbb2a 2004-04-19 devnull 	ElfSectRela,

 81 a84cbb2a 2004-04-19 devnull 	ElfSectHash,

 82 a84cbb2a 2004-04-19 devnull 	ElfSectDynamic,

 83 a84cbb2a 2004-04-19 devnull 	ElfSectNote,

 84 a84cbb2a 2004-04-19 devnull 	ElfSectNobits,

 85 a84cbb2a 2004-04-19 devnull 	ElfSectRel,

 86 a84cbb2a 2004-04-19 devnull 	ElfSectShlib,

 87 a84cbb2a 2004-04-19 devnull 	ElfSectDynsym,

 88 a84cbb2a 2004-04-19 devnull 

 89 a84cbb2a 2004-04-19 devnull 	ElfSectFlagWrite = 0x1,

 90 a84cbb2a 2004-04-19 devnull 	ElfSectFlagAlloc = 0x2,

 91 a84cbb2a 2004-04-19 devnull 	ElfSectFlagExec = 0x4,

 92 a84cbb2a 2004-04-19 devnull 	/* 0xF0000000 are reserved for processor specific */

 93 a84cbb2a 2004-04-19 devnull 

 94 a84cbb2a 2004-04-19 devnull 	ElfSymBindLocal = 0,

 95 a84cbb2a 2004-04-19 devnull 	ElfSymBindGlobal,

 96 a84cbb2a 2004-04-19 devnull 	ElfSymBindWeak,

 97 a84cbb2a 2004-04-19 devnull 	/* 13-15 reserved */

 98 a84cbb2a 2004-04-19 devnull 

 99 a84cbb2a 2004-04-19 devnull 	ElfSymTypeNone = 0,

100 a84cbb2a 2004-04-19 devnull 	ElfSymTypeObject,

101 a84cbb2a 2004-04-19 devnull 	ElfSymTypeFunc,

102 a84cbb2a 2004-04-19 devnull 	ElfSymTypeSection,

103 a84cbb2a 2004-04-19 devnull 	ElfSymTypeFile,

104 a84cbb2a 2004-04-19 devnull 	/* 13-15 reserved */

105 a84cbb2a 2004-04-19 devnull 

106 a84cbb2a 2004-04-19 devnull 	ElfSymShnNone = 0,

107 a84cbb2a 2004-04-19 devnull 	ElfSymShnAbs = 0xFFF1,

108 a84cbb2a 2004-04-19 devnull 	ElfSymShnCommon = 0xFFF2,

109 a84cbb2a 2004-04-19 devnull 	/* 0xFF00-0xFF1F reserved for processors */

110 a84cbb2a 2004-04-19 devnull 	/* 0xFF20-0xFF3F reserved for operating systems */

111 a84cbb2a 2004-04-19 devnull 

112 a84cbb2a 2004-04-19 devnull 	ElfProgNone = 0,

113 a84cbb2a 2004-04-19 devnull 	ElfProgLoad,

114 a84cbb2a 2004-04-19 devnull 	ElfProgDynamic,

115 a84cbb2a 2004-04-19 devnull 	ElfProgInterp,

116 a84cbb2a 2004-04-19 devnull 	ElfProgNote,

117 a84cbb2a 2004-04-19 devnull 	ElfProgShlib,

118 a84cbb2a 2004-04-19 devnull 	ElfProgPhdr,

119 a84cbb2a 2004-04-19 devnull 

120 a84cbb2a 2004-04-19 devnull 	ElfProgFlagExec = 0x1,

121 a84cbb2a 2004-04-19 devnull 	ElfProgFlagWrite = 0x2,

122 a84cbb2a 2004-04-19 devnull 	ElfProgFlagRead = 0x4,

123 a84cbb2a 2004-04-19 devnull 

124 a84cbb2a 2004-04-19 devnull 	ElfNotePrStatus = 1,

125 a84cbb2a 2004-04-19 devnull 	ElfNotePrFpreg = 2,

126 a84cbb2a 2004-04-19 devnull 	ElfNotePrPsinfo = 3,

127 a84cbb2a 2004-04-19 devnull 	ElfNotePrTaskstruct = 4,

128 a84cbb2a 2004-04-19 devnull 	ElfNotePrAuxv = 6,

129 cbeb0b26 2006-04-01 devnull 	ElfNotePrXfpreg = 0x46e62b7f	/* for gdb/386 */

130 a84cbb2a 2004-04-19 devnull };

131 a84cbb2a 2004-04-19 devnull 

132 a84cbb2a 2004-04-19 devnull struct ElfHdr

133 a84cbb2a 2004-04-19 devnull {

134 a84cbb2a 2004-04-19 devnull 	uchar	magic[4];

135 a84cbb2a 2004-04-19 devnull 	uchar	class;

136 a84cbb2a 2004-04-19 devnull 	uchar	encoding;

137 a84cbb2a 2004-04-19 devnull 	uchar	version;

138 a84cbb2a 2004-04-19 devnull 	uchar	abi;

139 a84cbb2a 2004-04-19 devnull 	uchar	abiversion;

140 a84cbb2a 2004-04-19 devnull 	u32int	type;

141 a84cbb2a 2004-04-19 devnull 	u32int	machine;

142 443d6288 2012-02-19 rsc 	u64int	entry;

143 443d6288 2012-02-19 rsc 	u64int	phoff;

144 443d6288 2012-02-19 rsc 	u64int	shoff;

145 a84cbb2a 2004-04-19 devnull 	u32int	flags;

146 a84cbb2a 2004-04-19 devnull 	u32int	ehsize;

147 a84cbb2a 2004-04-19 devnull 	u32int	phentsize;

148 a84cbb2a 2004-04-19 devnull 	u32int	phnum;

149 a84cbb2a 2004-04-19 devnull 	u32int	shentsize;

150 a84cbb2a 2004-04-19 devnull 	u32int	shnum;

151 a84cbb2a 2004-04-19 devnull 	u32int	shstrndx;

152 a84cbb2a 2004-04-19 devnull 	u16int	(*e2)(uchar*);

153 a84cbb2a 2004-04-19 devnull 	u32int	(*e4)(uchar*);

154 a84cbb2a 2004-04-19 devnull 	u64int	(*e8)(uchar*);

155 a84cbb2a 2004-04-19 devnull };

156 a84cbb2a 2004-04-19 devnull 

157 a84cbb2a 2004-04-19 devnull struct ElfSect

158 a84cbb2a 2004-04-19 devnull {

159 a84cbb2a 2004-04-19 devnull 	char		*name;

160 a84cbb2a 2004-04-19 devnull 	u32int	type;

161 443d6288 2012-02-19 rsc 	u64int	flags;

162 443d6288 2012-02-19 rsc 	u64int	addr;

163 443d6288 2012-02-19 rsc 	u64int	offset;

164 443d6288 2012-02-19 rsc 	u64int	size;

165 a84cbb2a 2004-04-19 devnull 	u32int	link;

166 a84cbb2a 2004-04-19 devnull 	u32int	info;

167 443d6288 2012-02-19 rsc 	u64int	align;

168 443d6288 2012-02-19 rsc 	u64int	entsize;

169 a84cbb2a 2004-04-19 devnull 	uchar	*base;

170 a84cbb2a 2004-04-19 devnull };

171 a84cbb2a 2004-04-19 devnull 

172 a84cbb2a 2004-04-19 devnull struct ElfProg

173 a84cbb2a 2004-04-19 devnull {

174 a84cbb2a 2004-04-19 devnull 	u32int	type;

175 443d6288 2012-02-19 rsc 	u64int	offset;

176 443d6288 2012-02-19 rsc 	u64int	vaddr;

177 443d6288 2012-02-19 rsc 	u64int	paddr;

178 443d6288 2012-02-19 rsc 	u64int	filesz;

179 443d6288 2012-02-19 rsc 	u64int	memsz;

180 a84cbb2a 2004-04-19 devnull 	u32int	flags;

181 443d6288 2012-02-19 rsc 	u64int	align;

182 a84cbb2a 2004-04-19 devnull };

183 a84cbb2a 2004-04-19 devnull 

184 a84cbb2a 2004-04-19 devnull struct ElfNote

185 a84cbb2a 2004-04-19 devnull {

186 a84cbb2a 2004-04-19 devnull 	u32int	namesz;

187 a84cbb2a 2004-04-19 devnull 	u32int	descsz;

188 a84cbb2a 2004-04-19 devnull 	u32int	type;

189 a84cbb2a 2004-04-19 devnull 	char	*name;

190 a84cbb2a 2004-04-19 devnull 	uchar	*desc;

191 a84cbb2a 2004-04-19 devnull 	u32int	offset;	/* in-memory only */

192 a84cbb2a 2004-04-19 devnull };

193 a84cbb2a 2004-04-19 devnull 

194 a84cbb2a 2004-04-19 devnull struct ElfSym

195 a84cbb2a 2004-04-19 devnull {

196 a84cbb2a 2004-04-19 devnull 	char*	name;

197 443d6288 2012-02-19 rsc 	u64int	value;

198 443d6288 2012-02-19 rsc 	u64int	size;

199 a84cbb2a 2004-04-19 devnull 	uchar	bind;

200 a84cbb2a 2004-04-19 devnull 	uchar	type;

201 a84cbb2a 2004-04-19 devnull 	uchar	other;

202 a84cbb2a 2004-04-19 devnull 	u16int	shndx;

203 a84cbb2a 2004-04-19 devnull };

204 a84cbb2a 2004-04-19 devnull 

205 a84cbb2a 2004-04-19 devnull struct Elf

206 a84cbb2a 2004-04-19 devnull {

207 a84cbb2a 2004-04-19 devnull 	int		fd;

208 a84cbb2a 2004-04-19 devnull 	ElfHdr	hdr;

209 a84cbb2a 2004-04-19 devnull 	ElfSect	*sect;

210 a84cbb2a 2004-04-19 devnull 	uint		nsect;

211 a84cbb2a 2004-04-19 devnull 	ElfProg	*prog;

212 a84cbb2a 2004-04-19 devnull 	uint		nprog;

213 a84cbb2a 2004-04-19 devnull 	char		*shstrtab;

214 a84cbb2a 2004-04-19 devnull 

215 a84cbb2a 2004-04-19 devnull 	int		nsymtab;

216 a84cbb2a 2004-04-19 devnull 	ElfSect	*symtab;

217 a84cbb2a 2004-04-19 devnull 	ElfSect	*symstr;

218 a84cbb2a 2004-04-19 devnull 	int		ndynsym;

219 a84cbb2a 2004-04-19 devnull 	ElfSect	*dynsym;

220 a84cbb2a 2004-04-19 devnull 	ElfSect	*dynstr;

221 a84cbb2a 2004-04-19 devnull 	ElfSect	*bss;

222 1cc215aa 2004-12-25 devnull 	ulong	dynamic;		/* offset to elf dynamic crap */

223 a84cbb2a 2004-04-19 devnull 

224 a84cbb2a 2004-04-19 devnull 	int		(*coreregs)(Elf*, ElfNote*, uchar**);

225 20173464 2005-01-18 devnull 	int		(*corecmd)(Elf*, ElfNote*, char**);

226 a84cbb2a 2004-04-19 devnull };

227 a84cbb2a 2004-04-19 devnull 

228 a84cbb2a 2004-04-19 devnull Elf*	elfopen(char*);

229 a84cbb2a 2004-04-19 devnull Elf*	elfinit(int);

230 a84cbb2a 2004-04-19 devnull ElfSect *elfsection(Elf*, char*);

231 a84cbb2a 2004-04-19 devnull void	elfclose(Elf*);

232 a84cbb2a 2004-04-19 devnull int	elfsym(Elf*, int, ElfSym*);

233 1cc215aa 2004-12-25 devnull int	elfsymlookup(Elf*, char*, ulong*);

234 a84cbb2a 2004-04-19 devnull int	elfmap(Elf*, ElfSect*);

235 a84cbb2a 2004-04-19 devnull 

236 dd944ec7 2005-01-23 devnull struct Fhdr;

237 dd944ec7 2005-01-23 devnull void	elfcorelinux386(struct Fhdr*, Elf*, ElfNote*);

238 443d6288 2012-02-19 rsc void	elfcorefreebsd386(struct Fhdr*, Elf*, ElfNote*);

239 443d6288 2012-02-19 rsc void	elfcorefreebsdamd64(struct Fhdr*, Elf*, ElfNote*);

240 dd944ec7 2005-01-23 devnull void	elfdl386mapdl(int);