IL2Cpp/Il2CppDumper
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提取函数

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This commit is contained in:
Perfare 2020-02-07 23:18:35 +08:00
parent c03e915182
commit 7a13ac1af9
2 changed files with 18 additions and 10 deletions
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12
Il2CppDumper/Elf.cs
View file

@ -70,6 +70,7 @@ namespace Il2CppDumper
} }
var pt_dynamic = programSegment.First(x => x.p_type == PT_DYNAMIC); var pt_dynamic = programSegment.First(x => x.p_type == PT_DYNAMIC);
dynamicSection = ReadClassArray<Elf32_Dyn>(pt_dynamic.p_offset, pt_dynamic.p_filesz / 8u); dynamicSection = ReadClassArray<Elf32_Dyn>(pt_dynamic.p_offset, pt_dynamic.p_filesz / 8u);
ReadSymbol();
if (!isDumped) if (!isDumped)
{ {
RelocationProcessing(); RelocationProcessing();
@ -204,18 +205,21 @@ namespace Il2CppDumper
return false; return false;
} }
private void ReadSymbol()
{
var dynsymOffset = MapVATR(dynamicSection.First(x => x.d_tag == DT_SYMTAB).d_un);
var dynstrOffset = MapVATR(dynamicSection.First(x => x.d_tag == DT_STRTAB).d_un);
var dynsymSize = dynstrOffset - dynsymOffset;
symbolTable = ReadClassArray<Elf32_Sym>(dynsymOffset, (long)dynsymSize / 16);
}
private void RelocationProcessing() private void RelocationProcessing()
{ {
Console.WriteLine("Applying relocations..."); Console.WriteLine("Applying relocations...");
try try
{ {
var dynsymOffset = MapVATR(dynamicSection.First(x => x.d_tag == DT_SYMTAB).d_un);
var dynstrOffset = MapVATR(dynamicSection.First(x => x.d_tag == DT_STRTAB).d_un);
var dynsymSize = dynstrOffset - dynsymOffset;
var reldynOffset = MapVATR(dynamicSection.First(x => x.d_tag == DT_REL).d_un); var reldynOffset = MapVATR(dynamicSection.First(x => x.d_tag == DT_REL).d_un);
var reldynSize = dynamicSection.First(x => x.d_tag == DT_RELSZ).d_un; var reldynSize = dynamicSection.First(x => x.d_tag == DT_RELSZ).d_un;
symbolTable = ReadClassArray<Elf32_Sym>(dynsymOffset, (long)dynsymSize / 16);
var relTable = ReadClassArray<Elf32_Rel>(reldynOffset, reldynSize / 8); var relTable = ReadClassArray<Elf32_Rel>(reldynOffset, reldynSize / 8);
var isx86 = elfHeader.e_machine == 0x3; var isx86 = elfHeader.e_machine == 0x3;
foreach (var rel in relTable) foreach (var rel in relTable)

16
Il2CppDumper/Elf64.cs
View file

@ -59,6 +59,7 @@ namespace Il2CppDumper
} }
var pt_dynamic = programSegment.First(x => x.p_type == PT_DYNAMIC); var pt_dynamic = programSegment.First(x => x.p_type == PT_DYNAMIC);
dynamicSection = ReadClassArray<Elf64_Dyn>(pt_dynamic.p_offset, (long)pt_dynamic.p_filesz / 16L); dynamicSection = ReadClassArray<Elf64_Dyn>(pt_dynamic.p_offset, (long)pt_dynamic.p_filesz / 16L);
ReadSymbol();
if (!isDumped) if (!isDumped)
{ {
RelocationProcessing(); RelocationProcessing();
@ -145,18 +146,21 @@ namespace Il2CppDumper
return false; return false;
} }
private void ReadSymbol()
{
var dynsymOffset = MapVATR(dynamicSection.First(x => x.d_tag == DT_SYMTAB).d_un);
var dynstrOffset = MapVATR(dynamicSection.First(x => x.d_tag == DT_STRTAB).d_un);
var dynsymSize = dynstrOffset - dynsymOffset;
symbolTable = ReadClassArray<Elf64_Sym>(dynsymOffset, (long)dynsymSize / 24L);
}
private void RelocationProcessing() private void RelocationProcessing()
{ {
Console.WriteLine("Applying relocations..."); Console.WriteLine("Applying relocations...");
try try
{ {
ulong dynsymOffset = MapVATR(dynamicSection.First(x => x.d_tag == DT_SYMTAB).d_un); var relaOffset = MapVATR(dynamicSection.First(x => x.d_tag == DT_RELA).d_un);
ulong dynstrOffset = MapVATR(dynamicSection.First(x => x.d_tag == DT_STRTAB).d_un);
var dynsymSize = dynstrOffset - dynsymOffset;
ulong relaOffset = MapVATR(dynamicSection.First(x => x.d_tag == DT_RELA).d_un);
var relaSize = dynamicSection.First(x => x.d_tag == DT_RELASZ).d_un; var relaSize = dynamicSection.First(x => x.d_tag == DT_RELASZ).d_un;
symbolTable = ReadClassArray<Elf64_Sym>(dynsymOffset, (long)dynsymSize / 24L);
var relaTable = ReadClassArray<Elf64_Rela>(relaOffset, (long)relaSize / 24L); var relaTable = ReadClassArray<Elf64_Rela>(relaOffset, (long)relaSize / 24L);
foreach (var rela in relaTable) foreach (var rela in relaTable)
{ {