Mercurial > vba-linux

     1 #ifndef VBA_ELF_H

     2 #define VBA_ELF_H

     3 

     4 #if _MSC_VER > 1000

     5 #pragma once

     6 #endif // _MSC_VER > 1000

     7 

     8 enum LocationType

     9 {

    10 	LOCATION_register,

    11 	LOCATION_memory,

    12 	LOCATION_value

    13 };

    14 

    15 #define DW_ATE_boolean       0x02

    16 #define DW_ATE_signed        0x05

    17 #define DW_ATE_unsigned      0x07

    18 #define DW_ATE_unsigned_char 0x08

    19 

    20 struct ELFHeader

    21 {

    22 	u32 magic;

    23 	u8  clazz;

    24 	u8  data;

    25 	u8  version;

    26 	u8  pad[9];

    27 	u16 e_type;

    28 	u16 e_machine;

    29 	u32 e_version;

    30 	u32 e_entry;

    31 	u32 e_phoff;

    32 	u32 e_shoff;

    33 	u32 e_flags;

    34 	u16 e_ehsize;

    35 	u16 e_phentsize;

    36 	u16 e_phnum;

    37 	u16 e_shentsize;

    38 	u16 e_shnum;

    39 	u16 e_shstrndx;

    40 };

    41 

    42 struct ELFProgramHeader

    43 {

    44 	u32 type;

    45 	u32 offset;

    46 	u32 vaddr;

    47 	u32 paddr;

    48 	u32 filesz;

    49 	u32 memsz;

    50 	u32 flags;

    51 	u32 align;

    52 };

    53 

    54 struct ELFSectionHeader

    55 {

    56 	u32 name;

    57 	u32 type;

    58 	u32 flags;

    59 	u32 addr;

    60 	u32 offset;

    61 	u32 size;

    62 	u32 link;

    63 	u32 info;

    64 	u32 addralign;

    65 	u32 entsize;

    66 };

    67 

    68 struct ELFSymbol

    69 {

    70 	u32 name;

    71 	u32 value;

    72 	u32 size;

    73 	u8  info;

    74 	u8  other;

    75 	u16 shndx;

    76 };

    77 

    78 struct ELFBlock

    79 {

    80 	int length;

    81 	u8 *data;

    82 };

    83 

    84 struct ELFAttr

    85 {

    86 	u32 name;

    87 	u32 form;

    88 	union

    89 	{

    90 		u32       value;

    91 		char *    string;

    92 		u8 *      data;

    93 		bool      flag;

    94 		ELFBlock *block;

    95 	};

    96 };

    97 

    98 struct ELFAbbrev

    99 {

   100 	u32        number;

   101 	u32        tag;

   102 	bool       hasChildren;

   103 	int        numAttrs;

   104 	ELFAttr *  attrs;

   105 	ELFAbbrev *next;

   106 };

   107 

   108 enum TypeEnum

   109 {

   110 	TYPE_base,

   111 	TYPE_pointer,

   112 	TYPE_function,

   113 	TYPE_void,

   114 	TYPE_array,

   115 	TYPE_struct,

   116 	TYPE_reference,

   117 	TYPE_enum,

   118 	TYPE_union

   119 };

   120 

   121 struct Type;

   122 struct Object;

   123 

   124 struct FunctionType

   125 {

   126 	Type *  returnType;

   127 	Object *args;

   128 };

   129 

   130 struct Member

   131 {

   132 	char *    name;

   133 	Type *    type;

   134 	int       bitSize;

   135 	int       bitOffset;

   136 	int       byteSize;

   137 	ELFBlock *location;

   138 };

   139 

   140 struct Struct

   141 {

   142 	int     memberCount;

   143 	Member *members;

   144 };

   145 

   146 struct Array

   147 {

   148 	Type *type;

   149 	int   maxBounds;

   150 	int * bounds;

   151 };

   152 

   153 struct EnumMember

   154 {

   155 	char *name;

   156 	u32   value;

   157 };

   158 

   159 struct Enum

   160 {

   161 	int         count;

   162 	EnumMember *members;

   163 };

   164 

   165 struct Type

   166 {

   167 	u32      offset;

   168 	TypeEnum type;

   169 	char *   name;

   170 	int      encoding;

   171 	int      size;

   172 	int      bitSize;

   173 	union

   174 	{

   175 		Type *        pointer;

   176 		FunctionType *function;

   177 		Array *       array;

   178 		Struct *      structure;

   179 		Enum *        enumeration;

   180 	};

   181 	Type *next;

   182 };

   183 

   184 struct Object

   185 {

   186 	char *    name;

   187 	int       file;

   188 	int       line;

   189 	bool      external;

   190 	Type *    type;

   191 	ELFBlock *location;

   192 	u32       startScope;

   193 	u32       endScope;

   194 	Object *  next;

   195 };

   196 

   197 struct Function

   198 {

   199 	char *    name;

   200 	u32       lowPC;

   201 	u32       highPC;

   202 	int       file;

   203 	int       line;

   204 	bool      external;

   205 	Type *    returnType;

   206 	Object *  parameters;

   207 	Object *  variables;

   208 	ELFBlock *frameBase;

   209 	Function *next;

   210 };

   211 

   212 struct LineInfoItem

   213 {

   214 	u32   address;

   215 	char *file;

   216 	int   line;

   217 };

   218 

   219 struct LineInfo

   220 {

   221 	int           fileCount;

   222 	char **       files;

   223 	int           number;

   224 	LineInfoItem *lines;

   225 };

   226 

   227 struct ARange

   228 {

   229 	u32 lowPC;

   230 	u32 highPC;

   231 };

   232 

   233 struct ARanges

   234 {

   235 	u32     offset;

   236 	int     count;

   237 	ARange *ranges;

   238 };

   239 

   240 struct CompileUnit

   241 {

   242 	u32          length;

   243 	u8 *         top;

   244 	u32          offset;

   245 	ELFAbbrev ** abbrevs;

   246 	ARanges *    ranges;

   247 	char *       name;

   248 	char *       compdir;

   249 	u32          lowPC;

   250 	u32          highPC;

   251 	bool         hasLineInfo;

   252 	u32          lineInfo;

   253 	LineInfo *   lineInfoTable;

   254 	Function *   functions;

   255 	Function *   lastFunction;

   256 	Object *     variables;

   257 	Type *       types;

   258 	CompileUnit *next;

   259 };

   260 

   261 struct DebugInfo

   262 {

   263 	u8 *     debugfile;

   264 	u8 *     abbrevdata;

   265 	u8 *     debugdata;

   266 	u8 *     infodata;

   267 	int      numRanges;

   268 	ARanges *ranges;

   269 };

   270 

   271 struct Symbol

   272 {

   273 	char *name;

   274 	int   type;

   275 	int   binding;

   276 	u32   address;

   277 	u32   value;

   278 	u32   size;

   279 };

   280 

   281 extern u32 elfReadLEB128(u8 *, int *);

   282 extern s32 elfReadSignedLEB128(u8 *, int *);

   283 extern bool elfRead(const char *, int &, FILE *f);

   284 extern bool elfGetSymbolAddress(char *, u32 *, u32 *, int *);

   285 extern char *elfGetAddressSymbol(u32);

   286 extern char *elfGetSymbol(int, u32 *, u32 *, int *);

   287 extern void elfCleanUp();

   288 extern bool elfGetCurrentFunction(u32, Function **, CompileUnit **c);

   289 extern bool elfGetObject(char *, Function *, CompileUnit *, Object * *);

   290 extern bool elfFindLineInUnit(u32 *, CompileUnit *, int);

   291 extern bool elfFindLineInModule(u32 *, char *, int);

   292 u32 elfDecodeLocation(Function *, ELFBlock *, LocationType *);

   293 u32 elfDecodeLocation(Function *, ELFBlock *, LocationType *, u32);

   294 int elfFindLine(CompileUnit *unit, Function *func, u32 addr, char * *);

   295 

   296 #endif // VBA_ELF_H
author	Robert McIntyre <rlm@mit.edu>
date	Sun, 04 Mar 2012 20:32:31 -0600
parents	f9f4f1b99eed
children