chizui/Il2CppInspectorRedux
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tweak symbol reading a bit and remove sht relocation reading

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This commit is contained in:
LukeFZ
2025-07-25 17:43:29 +02:00
parent cb6f913bce
commit 771eb8eb52
1 changed files with 21 additions and 18 deletions
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39
Il2CppInspector.Common/FileFormatStreams/ElfReader.cs
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@@ -267,21 +267,6 @@ namespace Il2CppInspector
StatusUpdate("Finding relocations"); StatusUpdate("Finding relocations");
// Two types: add value from offset in image, and add value from specified addend
foreach (var relSection in GetSections(Elf.SHT_REL)) {
reverseMapExclusions.Add(((uint) conv.Int(relSection.sh_offset), (uint) (conv.Int(relSection.sh_offset) + conv.Int(relSection.sh_size) - 1)));
rels.UnionWith(
from rel in ReadArray<elf_rel<TWord>>(conv.Long(relSection.sh_offset), conv.Int(conv.Div(relSection.sh_size, relSection.sh_entsize)))
select new ElfReloc(rel, SHT[relSection.sh_link].sh_offset));
}
foreach (var relaSection in GetSections(Elf.SHT_RELA)) {
reverseMapExclusions.Add(((uint) conv.Int(relaSection.sh_offset), (uint) (conv.Int(relaSection.sh_offset) + conv.Int(relaSection.sh_size) - 1)));
rels.UnionWith(
from rela in ReadArray<elf_rela<TWord>>(conv.Long(relaSection.sh_offset), conv.Int(conv.Div(relaSection.sh_size, relaSection.sh_entsize)))
select new ElfReloc(rela, SHT[relaSection.sh_link].sh_offset));
}
// Relocations in dynamic section // Relocations in dynamic section
if (GetDynamicEntry(Elf.DT_REL) is elf_dynamic<TWord> dt_rel) { if (GetDynamicEntry(Elf.DT_REL) is elf_dynamic<TWord> dt_rel) {
var dt_rel_count = conv.Int(conv.Div(GetDynamicEntry(Elf.DT_RELSZ).d_un, GetDynamicEntry(Elf.DT_RELENT).d_un)); var dt_rel_count = conv.Int(conv.Div(GetDynamicEntry(Elf.DT_RELSZ).d_un, GetDynamicEntry(Elf.DT_RELENT).d_un));
@@ -314,7 +299,26 @@ namespace Il2CppInspector
if (currentRel % 1000 == 0) if (currentRel % 1000 == 0)
StatusUpdate($"Processing relocations ({currentRel * 100 / totalRel:F0}%)"); StatusUpdate($"Processing relocations ({currentRel * 100 / totalRel:F0}%)");
var symValue = ReadObject<TSym>(conv.Long(rel.SymbolTable) + conv.Long(rel.SymbolIndex) * relsz).st_value; // S TWord symValue;
try
{
// man this really needs a full overhaul
symValue = ReadMappedObject<TSym>(conv.ULong(rel.SymbolTable) + conv.ULong(rel.SymbolIndex) * relsz)
.st_value; // S
}
catch (InvalidOperationException)
{
try
{
symValue = ReadObject<TSym>(conv.Long(rel.SymbolTable) + conv.Long(rel.SymbolIndex) * relsz)
.st_value; // S
}
catch (InvalidOperationException)
{
continue;
}
}
// Ignore relocations into memory addresses not mapped from the image // Ignore relocations into memory addresses not mapped from the image
try { try {
@@ -455,8 +459,7 @@ namespace Il2CppInspector
foreach (var pTab in pTables) foreach (var pTab in pTables)
{ {
if (alreadyProcessed.Any(x => if (alreadyProcessed.Any(x =>
conv.ULong(x.offset) == conv.ULong(pTab.offset) && conv.ULong(x.offset) == conv.ULong(pTab.offset)))
conv.ULong(x.count) >= conv.ULong(pTab.count)))
continue; continue;
alreadyProcessed.Add((pTab.offset, pTab.count)); alreadyProcessed.Add((pTab.offset, pTab.count));