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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 7597 | akron1 | 1 | (* |
| 2 | BSD 2-Clause License |
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| 6613 | leency | 3 | |
| 7597 | akron1 | 4 | Copyright (c) 2019, Anton Krotov |
| 5 | All rights reserved. |
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| 6 | *) |
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| 6613 | leency | 7 | |
| 7597 | akron1 | 8 | MODULE ELF; |
| 6613 | leency | 9 | |
| 7693 | akron1 | 10 | IMPORT BIN, WR := WRITER, CHL := CHUNKLISTS, LISTS; |
| 6613 | leency | 11 | |
| 12 | |||
| 7597 | akron1 | 13 | CONST |
| 6613 | leency | 14 | |
| 7597 | akron1 | 15 | EI_NIDENT = 16; |
| 16 | ET_EXEC = 2; |
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| 17 | ET_DYN = 3; |
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| 6613 | leency | 18 | |
| 7597 | akron1 | 19 | EM_386 = 3; |
| 20 | EM_8664 = 3EH; |
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| 6613 | leency | 21 | |
| 7597 | akron1 | 22 | ELFCLASS32 = 1; |
| 23 | ELFCLASS64 = 2; |
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| 24 | |||
| 25 | ELFDATA2LSB = 1; |
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| 26 | ELFDATA2MSB = 2; |
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| 27 | |||
| 28 | PF_X = 1; |
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| 29 | PF_W = 2; |
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| 30 | PF_R = 4; |
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| 31 | |||
| 32 | |||
| 33 | TYPE |
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| 34 | |||
| 35 | Elf32_Ehdr = RECORD |
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| 36 | |||
| 37 | e_ident: ARRAY EI_NIDENT OF BYTE; |
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| 38 | |||
| 39 | e_type, |
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| 40 | e_machine: WCHAR; |
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| 41 | |||
| 42 | e_version, |
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| 43 | e_entry, |
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| 44 | e_phoff, |
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| 45 | e_shoff, |
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| 46 | e_flags: INTEGER; |
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| 47 | |||
| 48 | e_ehsize, |
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| 49 | e_phentsize, |
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| 50 | e_phnum, |
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| 51 | e_shentsize, |
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| 52 | e_shnum, |
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| 53 | e_shstrndx: WCHAR |
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| 54 | |||
| 55 | END; |
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| 56 | |||
| 57 | |||
| 58 | Elf32_Phdr = RECORD |
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| 59 | |||
| 60 | p_type, |
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| 61 | p_offset, |
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| 62 | p_vaddr, |
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| 63 | p_paddr, |
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| 64 | p_filesz, |
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| 65 | p_memsz, |
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| 66 | p_flags, |
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| 67 | p_align: INTEGER |
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| 68 | |||
| 69 | END; |
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| 70 | |||
| 7693 | akron1 | 71 | |
| 72 | Elf32_Dyn = POINTER TO RECORD (LISTS.ITEM) |
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| 73 | |||
| 74 | d_tag, d_val: INTEGER |
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| 75 | |||
| 76 | END; |
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| 77 | |||
| 78 | |||
| 79 | Elf32_Sym = POINTER TO RECORD (LISTS.ITEM) |
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| 80 | |||
| 81 | name, value, size: INTEGER; |
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| 82 | info, other: CHAR; |
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| 83 | shndx: WCHAR |
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| 84 | |||
| 85 | END; |
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| 86 | |||
| 87 | |||
| 7597 | akron1 | 88 | FILE = WR.FILE; |
| 89 | |||
| 90 | |||
| 7693 | akron1 | 91 | VAR |
| 92 | |||
| 93 | dynamic: LISTS.LIST; |
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| 94 | strtab: CHL.BYTELIST; |
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| 95 | symtab: LISTS.LIST; |
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| 96 | |||
| 97 | hashtab, bucket, chain: CHL.INTLIST; |
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| 98 | |||
| 99 | |||
| 7597 | akron1 | 100 | PROCEDURE align (n, _align: INTEGER): INTEGER; |
| 6613 | leency | 101 | BEGIN |
| 7597 | akron1 | 102 | IF n MOD _align # 0 THEN |
| 103 | n := n + _align - (n MOD _align) |
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| 104 | END |
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| 6613 | leency | 105 | |
| 7597 | akron1 | 106 | RETURN n |
| 107 | END align; |
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| 6613 | leency | 108 | |
| 7597 | akron1 | 109 | |
| 110 | PROCEDURE Write16 (file: FILE; w: WCHAR); |
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| 111 | BEGIN |
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| 112 | WR.Write16LE(file, ORD(w)) |
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| 113 | END Write16; |
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| 114 | |||
| 115 | |||
| 116 | PROCEDURE WritePH (file: FILE; ph: Elf32_Phdr); |
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| 117 | BEGIN |
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| 118 | WR.Write32LE(file, ph.p_type); |
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| 119 | WR.Write32LE(file, ph.p_offset); |
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| 120 | WR.Write32LE(file, ph.p_vaddr); |
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| 121 | WR.Write32LE(file, ph.p_paddr); |
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| 122 | WR.Write32LE(file, ph.p_filesz); |
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| 123 | WR.Write32LE(file, ph.p_memsz); |
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| 124 | WR.Write32LE(file, ph.p_flags); |
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| 125 | WR.Write32LE(file, ph.p_align) |
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| 126 | END WritePH; |
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| 127 | |||
| 128 | |||
| 129 | PROCEDURE WritePH64 (file: FILE; ph: Elf32_Phdr); |
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| 130 | BEGIN |
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| 131 | WR.Write32LE(file, ph.p_type); |
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| 132 | WR.Write32LE(file, ph.p_flags); |
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| 133 | WR.Write64LE(file, ph.p_offset); |
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| 134 | WR.Write64LE(file, ph.p_vaddr); |
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| 135 | WR.Write64LE(file, ph.p_paddr); |
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| 136 | WR.Write64LE(file, ph.p_filesz); |
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| 137 | WR.Write64LE(file, ph.p_memsz); |
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| 138 | WR.Write64LE(file, ph.p_align) |
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| 139 | END WritePH64; |
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| 140 | |||
| 141 | |||
| 142 | PROCEDURE fixup (program: BIN.PROGRAM; text, data, bss: INTEGER; amd64: BOOLEAN); |
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| 143 | VAR |
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| 144 | reloc: BIN.RELOC; |
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| 145 | L, delta: INTEGER; |
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| 146 | |||
| 147 | BEGIN |
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| 148 | reloc := program.rel_list.first(BIN.RELOC); |
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| 149 | WHILE reloc # NIL DO |
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| 150 | |||
| 151 | L := BIN.get32le(program.code, reloc.offset); |
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| 152 | delta := 3 - reloc.offset - text - 7 * ORD(amd64); |
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| 153 | |||
| 154 | CASE reloc.opcode OF |
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| 155 | |BIN.PICDATA: BIN.put32le(program.code, reloc.offset, L + data + delta) |
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| 156 | |BIN.PICCODE: BIN.put32le(program.code, reloc.offset, BIN.GetLabel(program, L) + text + delta) |
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| 157 | |BIN.PICBSS: BIN.put32le(program.code, reloc.offset, L + bss + delta) |
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| 158 | END; |
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| 159 | |||
| 160 | reloc := reloc.next(BIN.RELOC) |
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| 161 | END; |
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| 162 | END fixup; |
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| 163 | |||
| 164 | |||
| 7693 | akron1 | 165 | PROCEDURE NewDyn (tag, val: INTEGER); |
| 166 | VAR |
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| 167 | dyn: Elf32_Dyn; |
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| 168 | |||
| 169 | BEGIN |
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| 170 | NEW(dyn); |
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| 171 | dyn.d_tag := tag; |
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| 172 | dyn.d_val := val; |
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| 173 | LISTS.push(dynamic, dyn) |
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| 174 | END NewDyn; |
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| 175 | |||
| 176 | |||
| 177 | PROCEDURE NewSym (name, value, size: INTEGER; info, other: CHAR; shndx: WCHAR); |
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| 178 | VAR |
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| 179 | sym: Elf32_Sym; |
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| 180 | |||
| 181 | BEGIN |
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| 182 | NEW(sym); |
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| 183 | sym.name := name; |
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| 184 | sym.value := value; |
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| 185 | sym.size := size; |
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| 186 | sym.info := info; |
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| 187 | sym.other := other; |
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| 188 | sym.shndx := shndx; |
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| 189 | |||
| 190 | LISTS.push(symtab, sym) |
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| 191 | END NewSym; |
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| 192 | |||
| 193 | |||
| 194 | PROCEDURE HashStr (name: ARRAY OF CHAR): INTEGER; |
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| 195 | VAR |
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| 196 | i, h: INTEGER; |
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| 197 | g: SET; |
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| 198 | |||
| 199 | BEGIN |
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| 200 | h := 0; |
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| 201 | i := 0; |
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| 202 | WHILE name[i] # 0X DO |
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| 203 | h := h * 16 + ORD(name[i]); |
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| 204 | g := BITS(h) * {28..31}; |
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| 205 | h := ORD(BITS(h) / BITS(LSR(ORD(g), 24)) - g); |
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| 206 | INC(i) |
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| 207 | END |
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| 208 | |||
| 209 | RETURN h |
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| 210 | END HashStr; |
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| 211 | |||
| 212 | |||
| 213 | PROCEDURE MakeHash (bucket, chain: CHL.INTLIST; symCount: INTEGER); |
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| 214 | VAR |
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| 215 | symi, hi, k: INTEGER; |
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| 216 | |||
| 217 | BEGIN |
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| 218 | FOR symi := 0 TO symCount - 1 DO |
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| 219 | CHL.SetInt(chain, symi, 0); |
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| 220 | hi := CHL.GetInt(hashtab, symi) MOD symCount; |
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| 221 | IF CHL.GetInt(bucket, hi) # 0 THEN |
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| 222 | k := symi; |
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| 223 | WHILE CHL.GetInt(chain, k) # 0 DO |
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| 224 | k := CHL.GetInt(chain, k) |
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| 225 | END; |
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| 226 | CHL.SetInt(chain, k, CHL.GetInt(bucket, hi)) |
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| 227 | END; |
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| 228 | CHL.SetInt(bucket, hi, symi) |
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| 229 | END |
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| 230 | END MakeHash; |
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| 231 | |||
| 232 | |||
| 233 | PROCEDURE write* (program: BIN.PROGRAM; FileName: ARRAY OF CHAR; fini: INTEGER; so, amd64: BOOLEAN); |
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| 7597 | akron1 | 234 | CONST |
| 235 | interp = 0; |
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| 236 | dyn = 1; |
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| 237 | header = 2; |
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| 238 | text = 3; |
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| 239 | data = 4; |
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| 240 | bss = 5; |
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| 241 | |||
| 7693 | akron1 | 242 | linuxInterpreter64 = "/lib64/ld-linux-x86-64.so.2"; |
| 243 | linuxInterpreter32 = "/lib/ld-linux.so.2"; |
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| 244 | |||
| 245 | exeBaseAddress32 = 8048000H; |
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| 246 | exeBaseAddress64 = 400000H; |
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| 247 | dllBaseAddress = 0; |
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| 248 | |||
| 249 | DT_NULL = 0; |
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| 250 | DT_NEEDED = 1; |
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| 251 | DT_HASH = 4; |
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| 252 | DT_STRTAB = 5; |
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| 253 | DT_SYMTAB = 6; |
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| 254 | DT_RELA = 7; |
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| 255 | DT_RELASZ = 8; |
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| 256 | DT_RELAENT = 9; |
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| 257 | DT_STRSZ = 10; |
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| 258 | DT_SYMENT = 11; |
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| 259 | DT_INIT = 12; |
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| 260 | DT_FINI = 13; |
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| 261 | DT_SONAME = 14; |
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| 262 | DT_REL = 17; |
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| 263 | DT_RELSZ = 18; |
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| 264 | DT_RELENT = 19; |
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| 265 | |||
| 7597 | akron1 | 266 | VAR |
| 267 | ehdr: Elf32_Ehdr; |
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| 268 | phdr: ARRAY 16 OF Elf32_Phdr; |
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| 269 | |||
| 7693 | akron1 | 270 | i, BaseAdr, offset, pad, VA, symCount: INTEGER; |
| 7597 | akron1 | 271 | |
| 272 | SizeOf: RECORD header, code, data, bss: INTEGER END; |
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| 273 | |||
| 7693 | akron1 | 274 | Offset: RECORD symtab, reltab, hash, strtab, dyn: INTEGER END; |
| 275 | |||
| 7597 | akron1 | 276 | File: FILE; |
| 277 | |||
| 7693 | akron1 | 278 | Interpreter: ARRAY 40 OF CHAR; lenInterpreter: INTEGER; |
| 7597 | akron1 | 279 | |
| 7693 | akron1 | 280 | item: LISTS.ITEM; |
| 281 | |||
| 282 | Name: ARRAY 2048 OF CHAR; |
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| 283 | |||
| 7597 | akron1 | 284 | BEGIN |
| 7693 | akron1 | 285 | dynamic := LISTS.create(NIL); |
| 286 | symtab := LISTS.create(NIL); |
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| 287 | strtab := CHL.CreateByteList(); |
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| 288 | |||
| 7597 | akron1 | 289 | IF amd64 THEN |
| 7693 | akron1 | 290 | BaseAdr := exeBaseAddress64; |
| 291 | Interpreter := linuxInterpreter64 |
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| 7597 | akron1 | 292 | ELSE |
| 7693 | akron1 | 293 | BaseAdr := exeBaseAddress32; |
| 294 | Interpreter := linuxInterpreter32 |
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| 7597 | akron1 | 295 | END; |
| 296 | |||
| 7693 | akron1 | 297 | IF so THEN |
| 298 | BaseAdr := dllBaseAddress |
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| 7597 | akron1 | 299 | END; |
| 300 | |||
| 7693 | akron1 | 301 | lenInterpreter := LENGTH(Interpreter) + 1; |
| 302 | |||
| 7597 | akron1 | 303 | SizeOf.code := CHL.Length(program.code); |
| 304 | SizeOf.data := CHL.Length(program.data); |
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| 305 | SizeOf.bss := program.bss; |
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| 306 | |||
| 307 | ehdr.e_ident[0] := 7FH; |
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| 308 | ehdr.e_ident[1] := ORD("E"); |
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| 309 | ehdr.e_ident[2] := ORD("L"); |
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| 310 | ehdr.e_ident[3] := ORD("F"); |
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| 311 | IF amd64 THEN |
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| 312 | ehdr.e_ident[4] := ELFCLASS64 |
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| 313 | ELSE |
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| 314 | ehdr.e_ident[4] := ELFCLASS32 |
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| 315 | END; |
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| 316 | ehdr.e_ident[5] := ELFDATA2LSB; |
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| 317 | ehdr.e_ident[6] := 1; |
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| 318 | ehdr.e_ident[7] := 3; |
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| 319 | FOR i := 8 TO EI_NIDENT - 1 DO |
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| 320 | ehdr.e_ident[i] := 0 |
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| 321 | END; |
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| 322 | |||
| 7693 | akron1 | 323 | IF so THEN |
| 324 | ehdr.e_type := WCHR(ET_DYN) |
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| 325 | ELSE |
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| 326 | ehdr.e_type := WCHR(ET_EXEC) |
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| 327 | END; |
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| 328 | |||
| 7597 | akron1 | 329 | ehdr.e_version := 1; |
| 330 | ehdr.e_shoff := 0; |
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| 331 | ehdr.e_flags := 0; |
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| 332 | ehdr.e_shnum := WCHR(0); |
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| 333 | ehdr.e_shstrndx := WCHR(0); |
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| 334 | ehdr.e_phnum := WCHR(6); |
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| 335 | |||
| 336 | IF amd64 THEN |
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| 337 | ehdr.e_machine := WCHR(EM_8664); |
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| 338 | ehdr.e_phoff := 40H; |
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| 339 | ehdr.e_ehsize := WCHR(40H); |
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| 340 | ehdr.e_phentsize := WCHR(38H); |
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| 341 | ehdr.e_shentsize := WCHR(40H) |
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| 342 | ELSE |
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| 343 | ehdr.e_machine := WCHR(EM_386); |
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| 344 | ehdr.e_phoff := 34H; |
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| 345 | ehdr.e_ehsize := WCHR(34H); |
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| 346 | ehdr.e_phentsize := WCHR(20H); |
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| 347 | ehdr.e_shentsize := WCHR(28H) |
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| 348 | END; |
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| 349 | |||
| 350 | SizeOf.header := ORD(ehdr.e_ehsize) + ORD(ehdr.e_phentsize) * ORD(ehdr.e_phnum); |
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| 351 | |||
| 352 | phdr[interp].p_type := 3; |
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| 353 | phdr[interp].p_offset := SizeOf.header; |
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| 7693 | akron1 | 354 | phdr[interp].p_vaddr := BaseAdr + phdr[interp].p_offset; |
| 355 | phdr[interp].p_paddr := phdr[interp].p_vaddr; |
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| 356 | phdr[interp].p_filesz := lenInterpreter; |
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| 357 | phdr[interp].p_memsz := lenInterpreter; |
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| 7597 | akron1 | 358 | phdr[interp].p_flags := PF_R; |
| 359 | phdr[interp].p_align := 1; |
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| 360 | |||
| 361 | phdr[dyn].p_type := 2; |
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| 362 | phdr[dyn].p_offset := phdr[interp].p_offset + phdr[interp].p_filesz; |
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| 7693 | akron1 | 363 | phdr[dyn].p_vaddr := BaseAdr + phdr[dyn].p_offset; |
| 364 | phdr[dyn].p_paddr := phdr[dyn].p_vaddr; |
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| 365 | |||
| 366 | hashtab := CHL.CreateIntList(); |
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| 367 | |||
| 368 | CHL.PushInt(hashtab, HashStr("")); |
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| 369 | NewSym(CHL.PushStr(strtab, ""), 0, 0, 0X, 0X, 0X); |
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| 370 | CHL.PushInt(hashtab, HashStr("dlopen")); |
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| 371 | NewSym(CHL.PushStr(strtab, "dlopen"), 0, 0, 12X, 0X, 0X); |
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| 372 | CHL.PushInt(hashtab, HashStr("dlsym")); |
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| 373 | NewSym(CHL.PushStr(strtab, "dlsym"), 0, 0, 12X, 0X, 0X); |
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| 374 | |||
| 375 | IF so THEN |
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| 376 | item := program.exp_list.first; |
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| 377 | WHILE item # NIL DO |
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| 378 | ASSERT(CHL.GetStr(program.export, item(BIN.EXPRT).nameoffs, Name)); |
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| 379 | CHL.PushInt(hashtab, HashStr(Name)); |
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| 380 | NewSym(CHL.PushStr(strtab, Name), item(BIN.EXPRT).label, 0, 12X, 0X, 0X); |
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| 381 | item := item.next |
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| 382 | END; |
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| 383 | ASSERT(CHL.GetStr(program.data, program.modname, Name)) |
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| 384 | END; |
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| 385 | |||
| 386 | symCount := LISTS.count(symtab); |
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| 387 | |||
| 388 | bucket := CHL.CreateIntList(); |
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| 389 | chain := CHL.CreateIntList(); |
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| 390 | |||
| 391 | FOR i := 1 TO symCount DO |
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| 392 | CHL.PushInt(bucket, 0); |
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| 393 | CHL.PushInt(chain, 0) |
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| 394 | END; |
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| 395 | |||
| 396 | MakeHash(bucket, chain, symCount); |
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| 397 | |||
| 398 | NewDyn(DT_NEEDED, CHL.PushStr(strtab, "libdl.so.2")); |
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| 399 | NewDyn(DT_STRTAB, 0); |
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| 400 | NewDyn(DT_STRSZ, CHL.Length(strtab)); |
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| 401 | NewDyn(DT_SYMTAB, 0); |
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| 402 | |||
| 7597 | akron1 | 403 | IF amd64 THEN |
| 7693 | akron1 | 404 | NewDyn(DT_SYMENT, 24); |
| 405 | NewDyn(DT_RELA, 0); |
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| 406 | NewDyn(DT_RELASZ, 48); |
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| 407 | NewDyn(DT_RELAENT, 24) |
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| 7597 | akron1 | 408 | ELSE |
| 7693 | akron1 | 409 | NewDyn(DT_SYMENT, 16); |
| 410 | NewDyn(DT_REL, 0); |
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| 411 | NewDyn(DT_RELSZ, 16); |
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| 412 | NewDyn(DT_RELENT, 8) |
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| 7597 | akron1 | 413 | END; |
| 7693 | akron1 | 414 | |
| 415 | NewDyn(DT_HASH, 0); |
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| 416 | |||
| 417 | IF so THEN |
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| 418 | NewDyn(DT_SONAME, CHL.PushStr(strtab, Name)); |
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| 419 | NewDyn(DT_INIT, 0); |
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| 420 | NewDyn(DT_FINI, 0) |
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| 421 | END; |
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| 422 | |||
| 423 | NewDyn(DT_NULL, 0); |
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| 424 | |||
| 425 | Offset.symtab := LISTS.count(dynamic) * (8 + 8 * ORD(amd64)); |
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| 426 | Offset.reltab := Offset.symtab + symCount * (16 + 8 * ORD(amd64)); |
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| 427 | Offset.hash := Offset.reltab + (8 + 16 * ORD(amd64)) * 2; |
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| 428 | Offset.strtab := Offset.hash + (symCount * 2 + 2) * 4; |
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| 429 | |||
| 430 | Offset.dyn := phdr[dyn].p_offset; |
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| 431 | |||
| 432 | item := LISTS.getidx(dynamic, 1); item(Elf32_Dyn).d_val := Offset.strtab + Offset.dyn + BaseAdr; |
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| 433 | item := LISTS.getidx(dynamic, 3); item(Elf32_Dyn).d_val := Offset.symtab + Offset.dyn + BaseAdr; |
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| 434 | item := LISTS.getidx(dynamic, 5); item(Elf32_Dyn).d_val := Offset.reltab + Offset.dyn + BaseAdr; |
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| 435 | item := LISTS.getidx(dynamic, 8); item(Elf32_Dyn).d_val := Offset.hash + Offset.dyn + BaseAdr; |
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| 436 | |||
| 437 | phdr[dyn].p_filesz := Offset.strtab + CHL.Length(strtab) + 8 + 8 * ORD(amd64); |
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| 438 | phdr[dyn].p_memsz := phdr[dyn].p_filesz; |
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| 439 | |||
| 7597 | akron1 | 440 | phdr[dyn].p_flags := PF_R; |
| 441 | phdr[dyn].p_align := 1; |
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| 442 | |||
| 443 | offset := 0; |
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| 444 | |||
| 445 | phdr[header].p_type := 1; |
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| 446 | phdr[header].p_offset := offset; |
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| 7693 | akron1 | 447 | phdr[header].p_vaddr := BaseAdr; |
| 448 | phdr[header].p_paddr := BaseAdr; |
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| 449 | phdr[header].p_filesz := 244 + 156 * ORD(amd64) + lenInterpreter + phdr[dyn].p_filesz; |
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| 450 | phdr[header].p_memsz := phdr[header].p_filesz; |
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| 7597 | akron1 | 451 | phdr[header].p_flags := PF_R + PF_W; |
| 452 | phdr[header].p_align := 1000H; |
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| 7693 | akron1 | 453 | |
| 7597 | akron1 | 454 | offset := offset + phdr[header].p_filesz; |
| 7693 | akron1 | 455 | VA := BaseAdr + offset + 1000H; |
| 7597 | akron1 | 456 | |
| 457 | phdr[text].p_type := 1; |
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| 458 | phdr[text].p_offset := offset; |
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| 459 | phdr[text].p_vaddr := VA; |
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| 460 | phdr[text].p_paddr := VA; |
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| 461 | phdr[text].p_filesz := SizeOf.code; |
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| 462 | phdr[text].p_memsz := SizeOf.code; |
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| 463 | phdr[text].p_flags := PF_X + PF_R; |
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| 464 | phdr[text].p_align := 1000H; |
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| 465 | |||
| 466 | ehdr.e_entry := phdr[text].p_vaddr; |
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| 7693 | akron1 | 467 | |
| 7597 | akron1 | 468 | offset := offset + phdr[text].p_filesz; |
| 7693 | akron1 | 469 | VA := BaseAdr + offset + 2000H; |
| 7597 | akron1 | 470 | pad := (16 - VA MOD 16) MOD 16; |
| 471 | |||
| 472 | phdr[data].p_type := 1; |
||
| 473 | phdr[data].p_offset := offset; |
||
| 474 | phdr[data].p_vaddr := VA; |
||
| 475 | phdr[data].p_paddr := VA; |
||
| 476 | phdr[data].p_filesz := SizeOf.data + pad; |
||
| 477 | phdr[data].p_memsz := SizeOf.data + pad; |
||
| 478 | phdr[data].p_flags := PF_R + PF_W; |
||
| 479 | phdr[data].p_align := 1000H; |
||
| 7693 | akron1 | 480 | |
| 7597 | akron1 | 481 | offset := offset + phdr[data].p_filesz; |
| 7693 | akron1 | 482 | VA := BaseAdr + offset + 3000H; |
| 7597 | akron1 | 483 | |
| 484 | phdr[bss].p_type := 1; |
||
| 485 | phdr[bss].p_offset := offset; |
||
| 486 | phdr[bss].p_vaddr := VA; |
||
| 487 | phdr[bss].p_paddr := VA; |
||
| 488 | phdr[bss].p_filesz := 0; |
||
| 489 | phdr[bss].p_memsz := SizeOf.bss + 16; |
||
| 490 | phdr[bss].p_flags := PF_R + PF_W; |
||
| 491 | phdr[bss].p_align := 1000H; |
||
| 492 | |||
| 7693 | akron1 | 493 | fixup(program, ehdr.e_entry, phdr[data].p_vaddr + pad, align(phdr[bss].p_vaddr, 16), amd64); |
| 7597 | akron1 | 494 | |
| 7693 | akron1 | 495 | item := symtab.first; |
| 496 | WHILE item # NIL DO |
||
| 497 | IF item(Elf32_Sym).value # 0 THEN |
||
| 498 | INC(item(Elf32_Sym).value, ehdr.e_entry) |
||
| 499 | END; |
||
| 500 | item := item.next |
||
| 501 | END; |
||
| 502 | |||
| 503 | IF so THEN |
||
| 504 | item := LISTS.getidx(dynamic, 10); item(Elf32_Dyn).d_val := ehdr.e_entry; |
||
| 505 | item := LISTS.getidx(dynamic, 11); item(Elf32_Dyn).d_val := BIN.GetLabel(program, fini) + ehdr.e_entry |
||
| 506 | END; |
||
| 507 | |||
| 7597 | akron1 | 508 | File := WR.Create(FileName); |
| 509 | |||
| 510 | FOR i := 0 TO EI_NIDENT - 1 DO |
||
| 511 | WR.WriteByte(File, ehdr.e_ident[i]) |
||
| 512 | END; |
||
| 513 | |||
| 514 | Write16(File, ehdr.e_type); |
||
| 515 | Write16(File, ehdr.e_machine); |
||
| 516 | |||
| 517 | WR.Write32LE(File, ehdr.e_version); |
||
| 518 | IF amd64 THEN |
||
| 519 | WR.Write64LE(File, ehdr.e_entry); |
||
| 520 | WR.Write64LE(File, ehdr.e_phoff); |
||
| 521 | WR.Write64LE(File, ehdr.e_shoff) |
||
| 522 | ELSE |
||
| 523 | WR.Write32LE(File, ehdr.e_entry); |
||
| 524 | WR.Write32LE(File, ehdr.e_phoff); |
||
| 525 | WR.Write32LE(File, ehdr.e_shoff) |
||
| 526 | END; |
||
| 527 | WR.Write32LE(File, ehdr.e_flags); |
||
| 528 | |||
| 529 | Write16(File, ehdr.e_ehsize); |
||
| 530 | Write16(File, ehdr.e_phentsize); |
||
| 531 | Write16(File, ehdr.e_phnum); |
||
| 532 | Write16(File, ehdr.e_shentsize); |
||
| 533 | Write16(File, ehdr.e_shnum); |
||
| 534 | Write16(File, ehdr.e_shstrndx); |
||
| 535 | |||
| 536 | IF amd64 THEN |
||
| 537 | WritePH64(File, phdr[interp]); |
||
| 538 | WritePH64(File, phdr[dyn]); |
||
| 539 | WritePH64(File, phdr[header]); |
||
| 540 | WritePH64(File, phdr[text]); |
||
| 541 | WritePH64(File, phdr[data]); |
||
| 542 | WritePH64(File, phdr[bss]) |
||
| 543 | ELSE |
||
| 544 | WritePH(File, phdr[interp]); |
||
| 545 | WritePH(File, phdr[dyn]); |
||
| 546 | WritePH(File, phdr[header]); |
||
| 547 | WritePH(File, phdr[text]); |
||
| 548 | WritePH(File, phdr[data]); |
||
| 549 | WritePH(File, phdr[bss]) |
||
| 550 | END; |
||
| 551 | |||
| 7693 | akron1 | 552 | FOR i := 0 TO lenInterpreter - 1 DO |
| 553 | WR.WriteByte(File, ORD(Interpreter[i])) |
||
| 7597 | akron1 | 554 | END; |
| 555 | |||
| 556 | i := 0; |
||
| 557 | IF amd64 THEN |
||
| 7693 | akron1 | 558 | item := dynamic.first; |
| 559 | WHILE item # NIL DO |
||
| 560 | WR.Write64LE(File, item(Elf32_Dyn).d_tag); |
||
| 561 | WR.Write64LE(File, item(Elf32_Dyn).d_val); |
||
| 562 | item := item.next |
||
| 563 | END; |
||
| 564 | |||
| 565 | item := symtab.first; |
||
| 566 | WHILE item # NIL DO |
||
| 567 | WR.Write32LE(File, item(Elf32_Sym).name); |
||
| 568 | WR.WriteByte(File, ORD(item(Elf32_Sym).info)); |
||
| 569 | WR.WriteByte(File, ORD(item(Elf32_Sym).other)); |
||
| 570 | Write16(File, item(Elf32_Sym).shndx); |
||
| 571 | WR.Write64LE(File, item(Elf32_Sym).value); |
||
| 572 | WR.Write64LE(File, item(Elf32_Sym).size); |
||
| 573 | item := item.next |
||
| 574 | END; |
||
| 575 | |||
| 576 | WR.Write64LE(File, phdr[dyn].p_filesz + Offset.dyn + BaseAdr - 16); |
||
| 577 | WR.Write32LE(File, 1); |
||
| 578 | WR.Write32LE(File, 1); |
||
| 579 | WR.Write64LE(File, 0); |
||
| 580 | WR.Write64LE(File, phdr[dyn].p_filesz + Offset.dyn + BaseAdr - 8); |
||
| 581 | WR.Write32LE(File, 1); |
||
| 582 | WR.Write32LE(File, 2); |
||
| 583 | WR.Write64LE(File, 0); |
||
| 584 | |||
| 585 | WR.Write32LE(File, symCount); |
||
| 586 | WR.Write32LE(File, symCount); |
||
| 587 | |||
| 588 | FOR i := 0 TO symCount - 1 DO |
||
| 589 | WR.Write32LE(File, CHL.GetInt(bucket, i)) |
||
| 590 | END; |
||
| 591 | |||
| 592 | FOR i := 0 TO symCount - 1 DO |
||
| 593 | WR.Write32LE(File, CHL.GetInt(chain, i)) |
||
| 594 | END; |
||
| 595 | |||
| 596 | CHL.WriteToFile(File, strtab); |
||
| 597 | WR.Write64LE(File, 0); |
||
| 598 | WR.Write64LE(File, 0) |
||
| 599 | |||
| 7597 | akron1 | 600 | ELSE |
| 7693 | akron1 | 601 | item := dynamic.first; |
| 602 | WHILE item # NIL DO |
||
| 603 | WR.Write32LE(File, item(Elf32_Dyn).d_tag); |
||
| 604 | WR.Write32LE(File, item(Elf32_Dyn).d_val); |
||
| 605 | item := item.next |
||
| 606 | END; |
||
| 607 | |||
| 608 | item := symtab.first; |
||
| 609 | WHILE item # NIL DO |
||
| 610 | WR.Write32LE(File, item(Elf32_Sym).name); |
||
| 611 | WR.Write32LE(File, item(Elf32_Sym).value); |
||
| 612 | WR.Write32LE(File, item(Elf32_Sym).size); |
||
| 613 | WR.WriteByte(File, ORD(item(Elf32_Sym).info)); |
||
| 614 | WR.WriteByte(File, ORD(item(Elf32_Sym).other)); |
||
| 615 | Write16(File, item(Elf32_Sym).shndx); |
||
| 616 | item := item.next |
||
| 617 | END; |
||
| 618 | |||
| 619 | WR.Write32LE(File, phdr[dyn].p_filesz + Offset.dyn + BaseAdr - 8); |
||
| 620 | WR.Write32LE(File, 00000101H); |
||
| 621 | WR.Write32LE(File, phdr[dyn].p_filesz + Offset.dyn + BaseAdr - 4); |
||
| 622 | WR.Write32LE(File, 00000201H); |
||
| 623 | |||
| 624 | WR.Write32LE(File, symCount); |
||
| 625 | WR.Write32LE(File, symCount); |
||
| 626 | |||
| 627 | FOR i := 0 TO symCount - 1 DO |
||
| 628 | WR.Write32LE(File, CHL.GetInt(bucket, i)) |
||
| 629 | END; |
||
| 630 | |||
| 631 | FOR i := 0 TO symCount - 1 DO |
||
| 632 | WR.Write32LE(File, CHL.GetInt(chain, i)) |
||
| 633 | END; |
||
| 634 | |||
| 635 | CHL.WriteToFile(File, strtab); |
||
| 636 | WR.Write32LE(File, 0); |
||
| 637 | WR.Write32LE(File, 0) |
||
| 638 | |||
| 7597 | akron1 | 639 | END; |
| 640 | |||
| 641 | CHL.WriteToFile(File, program.code); |
||
| 642 | WHILE pad > 0 DO |
||
| 643 | WR.WriteByte(File, 0); |
||
| 644 | DEC(pad) |
||
| 645 | END; |
||
| 646 | CHL.WriteToFile(File, program.data); |
||
| 647 | WR.Close(File) |
||
| 648 | END write; |
||
| 649 | |||
| 650 | |||
| 6613 | leency | 651 | END ELF. |