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IL2CPP: Change metadata and binary to derive from BinaryObjectStream

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This commit is contained in:
Katy Coe
2020-12-21 06:37:29 +01:00
parent 620d985b71
commit c00b474f33
31 changed files with 172 additions and 179 deletions
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10
Il2CppInspector.Common/Architectures/Il2CppBinaryARM64.cs
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@@ -12,9 +12,9 @@ namespace Il2CppInspector
// A64 ISA reference: https://static.docs.arm.com/ddi0596/a/DDI_0596_ARM_a64_instruction_set_architecture.pdf
internal class Il2CppBinaryARM64 : Il2CppBinary
{
public Il2CppBinaryARM64(IFileFormatReader stream, EventHandler<string> statusCallback = null) : base(stream, statusCallback) { }
public Il2CppBinaryARM64(IFileFormatStream stream, EventHandler<string> statusCallback = null) : base(stream, statusCallback) { }
public Il2CppBinaryARM64(IFileFormatReader stream, uint codeRegistration, uint metadataRegistration, EventHandler<string> statusCallback = null)
public Il2CppBinaryARM64(IFileFormatStream stream, uint codeRegistration, uint metadataRegistration, EventHandler<string> statusCallback = null)
: base(stream, codeRegistration, metadataRegistration, statusCallback) { }
private (uint reg, ulong page)? getAdrp(uint inst, ulong pc) {
@@ -70,7 +70,7 @@ namespace Il2CppInspector
private bool isB(uint inst) => inst.Bits(26, 6) == 0b_000101;
private Dictionary<uint, ulong> sweepForAddressLoads(List<uint> func, ulong baseAddress, IFileFormatReader image) {
private Dictionary<uint, ulong> sweepForAddressLoads(List<uint> func, ulong baseAddress, IFileFormatStream image) {
// List of registers and addresses loaded into them
var regs = new Dictionary<uint, ulong>();
@@ -118,7 +118,7 @@ namespace Il2CppInspector
return regs;
}
private List<uint> getFunctionAtFileOffset(IFileFormatReader image, uint loc, uint maxLength) {
private List<uint> getFunctionAtFileOffset(IFileFormatStream image, uint loc, uint maxLength) {
// Read a function that ends in a hard branch (B) or exceeds maxLength instructions
var func = new List<uint>();
uint inst;
@@ -141,7 +141,7 @@ namespace Il2CppInspector
// - Loads can be done either with ADRP+ADD (loads the address of the wanted struct) or ADRP+LDR (loads a pointer to the address which must be de-referenced)
// - Loads do not need to be pairs of sequential instructions
// - We need to sweep the whole function from the ADRP to the next B to find an ADD or LDR with a corresponding register
protected override (ulong, ulong) ConsiderCode(IFileFormatReader image, uint loc) {
protected override (ulong, ulong) ConsiderCode(IFileFormatStream image, uint loc) {
// Load function into memory
// In practice, the longest function length we need is not generally longer than 7 instructions (0x1C bytes)
var func = getFunctionAtFileOffset(image, loc, 7);