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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System;
using System.Runtime.InteropServices;
using Microsoft.Diagnostics.DataContractReader.Contracts.StackWalkHelpers.LoongArch64;
namespace Microsoft.Diagnostics.DataContractReader.Contracts.StackWalkHelpers;
/// <summary>
/// LoongArch64-specific thread context.
/// </summary>
[StructLayout(LayoutKind.Explicit, Pack = 1)]
internal struct LoongArch64Context : IPlatformContext
{
[Flags]
public enum ContextFlagsValues : uint
{
CONTEXT_LOONGARCH64 = 0x00800000,
CONTEXT_CONTROL = CONTEXT_LOONGARCH64 | 0x1,
CONTEXT_INTEGER = CONTEXT_LOONGARCH64 | 0x2,
CONTEXT_FLOATING_POINT = CONTEXT_LOONGARCH64 | 0x4,
CONTEXT_DEBUG_REGISTERS = CONTEXT_LOONGARCH64 | 0x8,
CONTEXT_FULL = CONTEXT_CONTROL | CONTEXT_INTEGER | CONTEXT_FLOATING_POINT,
CONTEXT_ALL = CONTEXT_CONTROL | CONTEXT_INTEGER | CONTEXT_FLOATING_POINT | CONTEXT_DEBUG_REGISTERS,
//
// This flag is set by the unwinder if it has unwound to a call
// site, and cleared whenever it unwinds through a trap frame.
// It is used by language-specific exception handlers to help
// differentiate exception scopes during dispatching.
//
CONTEXT_UNWOUND_TO_CALL = 0x20000000,
CONTEXT_AREA_MASK = 0xFFFF,
}
public readonly uint Size => 0x320;
public readonly uint FullContextFlags => (uint)ContextFlagsValues.CONTEXT_FULL;
public readonly uint AllContextFlags => (uint)ContextFlagsValues.CONTEXT_ALL;
public readonly int StackPointerRegister => 3;
public TargetPointer StackPointer
{
readonly get => new(Sp);
set => Sp = value.Value;
}
public TargetPointer InstructionPointer
{
readonly get => new(Pc);
set => Pc = value.Value;
}
public TargetPointer FramePointer
{
readonly get => new(Fp);
set => Fp = value.Value;
}
public uint RawContextFlags { readonly get => ContextFlags; set => ContextFlags = value; }
public void Unwind(Target target)
{
LoongArch64Unwinder unwinder = new(target);
unwinder.Unwind(ref this);
}
public bool TrySetRegister(string name, TargetNUInt value)
{
if (name.Equals("r0", StringComparison.OrdinalIgnoreCase)) { R0 = value.Value; return true; }
if (name.Equals("ra", StringComparison.OrdinalIgnoreCase)) { Ra = value.Value; return true; }
if (name.Equals("tp", StringComparison.OrdinalIgnoreCase)) { Tp = value.Value; return true; }
if (name.Equals("sp", StringComparison.OrdinalIgnoreCase)) { Sp = value.Value; return true; }
if (name.Equals("a0", StringComparison.OrdinalIgnoreCase)) { A0 = value.Value; return true; }
if (name.Equals("a1", StringComparison.OrdinalIgnoreCase)) { A1 = value.Value; return true; }
if (name.Equals("a2", StringComparison.OrdinalIgnoreCase)) { A2 = value.Value; return true; }
if (name.Equals("a3", StringComparison.OrdinalIgnoreCase)) { A3 = value.Value; return true; }
if (name.Equals("a4", StringComparison.OrdinalIgnoreCase)) { A4 = value.Value; return true; }
if (name.Equals("a5", StringComparison.OrdinalIgnoreCase)) { A5 = value.Value; return true; }
if (name.Equals("a6", StringComparison.OrdinalIgnoreCase)) { A6 = value.Value; return true; }
if (name.Equals("a7", StringComparison.OrdinalIgnoreCase)) { A7 = value.Value; return true; }
if (name.Equals("t0", StringComparison.OrdinalIgnoreCase)) { T0 = value.Value; return true; }
if (name.Equals("t1", StringComparison.OrdinalIgnoreCase)) { T1 = value.Value; return true; }
if (name.Equals("t2", StringComparison.OrdinalIgnoreCase)) { T2 = value.Value; return true; }
if (name.Equals("t3", StringComparison.OrdinalIgnoreCase)) { T3 = value.Value; return true; }
if (name.Equals("t4", StringComparison.OrdinalIgnoreCase)) { T4 = value.Value; return true; }
if (name.Equals("t5", StringComparison.OrdinalIgnoreCase)) { T5 = value.Value; return true; }
if (name.Equals("t6", StringComparison.OrdinalIgnoreCase)) { T6 = value.Value; return true; }
if (name.Equals("t7", StringComparison.OrdinalIgnoreCase)) { T7 = value.Value; return true; }
if (name.Equals("t8", StringComparison.OrdinalIgnoreCase)) { T8 = value.Value; return true; }
if (name.Equals("x0", StringComparison.OrdinalIgnoreCase)) { X0 = value.Value; return true; }
if (name.Equals("fp", StringComparison.OrdinalIgnoreCase)) { Fp = value.Value; return true; }
if (name.Equals("s0", StringComparison.OrdinalIgnoreCase)) { S0 = value.Value; return true; }
if (name.Equals("s1", StringComparison.OrdinalIgnoreCase)) { S1 = value.Value; return true; }
if (name.Equals("s2", StringComparison.OrdinalIgnoreCase)) { S2 = value.Value; return true; }
if (name.Equals("s3", StringComparison.OrdinalIgnoreCase)) { S3 = value.Value; return true; }
if (name.Equals("s4", StringComparison.OrdinalIgnoreCase)) { S4 = value.Value; return true; }
if (name.Equals("s5", StringComparison.OrdinalIgnoreCase)) { S5 = value.Value; return true; }
if (name.Equals("s6", StringComparison.OrdinalIgnoreCase)) { S6 = value.Value; return true; }
if (name.Equals("s7", StringComparison.OrdinalIgnoreCase)) { S7 = value.Value; return true; }
if (name.Equals("s8", StringComparison.OrdinalIgnoreCase)) { S8 = value.Value; return true; }
if (name.Equals("pc", StringComparison.OrdinalIgnoreCase)) { Pc = value.Value; return true; }
if (name.Equals("fcc", StringComparison.OrdinalIgnoreCase)) { Fcc = (uint)value.Value; return true; }
if (name.Equals("fcsr", StringComparison.OrdinalIgnoreCase)) { Fcsr = (uint)value.Value; return true; }
return false;
}
public bool TryReadRegister(string name, out TargetNUInt value)
{
value = default;
if (name.Equals("r0", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(R0); return true; }
if (name.Equals("ra", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(Ra); return true; }
if (name.Equals("tp", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(Tp); return true; }
if (name.Equals("sp", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(Sp); return true; }
if (name.Equals("a0", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(A0); return true; }
if (name.Equals("a1", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(A1); return true; }
if (name.Equals("a2", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(A2); return true; }
if (name.Equals("a3", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(A3); return true; }
if (name.Equals("a4", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(A4); return true; }
if (name.Equals("a5", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(A5); return true; }
if (name.Equals("a6", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(A6); return true; }
if (name.Equals("a7", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(A7); return true; }
if (name.Equals("t0", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(T0); return true; }
if (name.Equals("t1", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(T1); return true; }
if (name.Equals("t2", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(T2); return true; }
if (name.Equals("t3", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(T3); return true; }
if (name.Equals("t4", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(T4); return true; }
if (name.Equals("t5", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(T5); return true; }
if (name.Equals("t6", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(T6); return true; }
if (name.Equals("t7", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(T7); return true; }
if (name.Equals("t8", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(T8); return true; }
if (name.Equals("x0", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(X0); return true; }
if (name.Equals("fp", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(Fp); return true; }
if (name.Equals("s0", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(S0); return true; }
if (name.Equals("s1", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(S1); return true; }
if (name.Equals("s2", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(S2); return true; }
if (name.Equals("s3", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(S3); return true; }
if (name.Equals("s4", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(S4); return true; }
if (name.Equals("s5", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(S5); return true; }
if (name.Equals("s6", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(S6); return true; }
if (name.Equals("s7", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(S7); return true; }
if (name.Equals("s8", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(S8); return true; }
if (name.Equals("pc", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(Pc); return true; }
if (name.Equals("fcc", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(Fcc); return true; }
if (name.Equals("fcsr", StringComparison.OrdinalIgnoreCase)) { value = new TargetNUInt(Fcsr); return true; }
return false;
}
public bool TrySetRegister(int number, TargetNUInt value)
{
switch (number)
{
case 0: R0 = value.Value; return true;
case 1: Ra = value.Value; return true;
case 2: Tp = value.Value; return true;
case 3: Sp = value.Value; return true;
case 4: A0 = value.Value; return true;
case 5: A1 = value.Value; return true;
case 6: A2 = value.Value; return true;
case 7: A3 = value.Value; return true;
case 8: A4 = value.Value; return true;
case 9: A5 = value.Value; return true;
case 10: A6 = value.Value; return true;
case 11: A7 = value.Value; return true;
case 12: T0 = value.Value; return true;
case 13: T1 = value.Value; return true;
case 14: T2 = value.Value; return true;
case 15: T3 = value.Value; return true;
case 16: T4 = value.Value; return true;
case 17: T5 = value.Value; return true;
case 18: T6 = value.Value; return true;
case 19: T7 = value.Value; return true;
case 20: T8 = value.Value; return true;
case 21: X0 = value.Value; return true;
case 22: Fp = value.Value; return true;
case 23: S0 = value.Value; return true;
case 24: S1 = value.Value; return true;
case 25: S2 = value.Value; return true;
case 26: S3 = value.Value; return true;
case 27: S4 = value.Value; return true;
case 28: S5 = value.Value; return true;
case 29: S6 = value.Value; return true;
case 30: S7 = value.Value; return true;
case 31: S8 = value.Value; return true;
default: return false;
}
}
public bool TryReadRegister(int number, out TargetNUInt value)
{
switch (number)
{
case 0: value = new TargetNUInt(R0); return true;
case 1: value = new TargetNUInt(Ra); return true;
case 2: value = new TargetNUInt(Tp); return true;
case 3: value = new TargetNUInt(Sp); return true;
case 4: value = new TargetNUInt(A0); return true;
case 5: value = new TargetNUInt(A1); return true;
case 6: value = new TargetNUInt(A2); return true;
case 7: value = new TargetNUInt(A3); return true;
case 8: value = new TargetNUInt(A4); return true;
case 9: value = new TargetNUInt(A5); return true;
case 10: value = new TargetNUInt(A6); return true;
case 11: value = new TargetNUInt(A7); return true;
case 12: value = new TargetNUInt(T0); return true;
case 13: value = new TargetNUInt(T1); return true;
case 14: value = new TargetNUInt(T2); return true;
case 15: value = new TargetNUInt(T3); return true;
case 16: value = new TargetNUInt(T4); return true;
case 17: value = new TargetNUInt(T5); return true;
case 18: value = new TargetNUInt(T6); return true;
case 19: value = new TargetNUInt(T7); return true;
case 20: value = new TargetNUInt(T8); return true;
case 21: value = new TargetNUInt(X0); return true;
case 22: value = new TargetNUInt(Fp); return true;
case 23: value = new TargetNUInt(S0); return true;
case 24: value = new TargetNUInt(S1); return true;
case 25: value = new TargetNUInt(S2); return true;
case 26: value = new TargetNUInt(S3); return true;
case 27: value = new TargetNUInt(S4); return true;
case 28: value = new TargetNUInt(S5); return true;
case 29: value = new TargetNUInt(S6); return true;
case 30: value = new TargetNUInt(S7); return true;
case 31: value = new TargetNUInt(S8); return true;
default: value = default; return false;
}
}
// Control flags
[FieldOffset(0x0)]
public uint ContextFlags;
#region General registers
[Register(RegisterType.General)]
[FieldOffset(0x8)]
public ulong R0;
[Register(RegisterType.General)]
[FieldOffset(0x10)]
public ulong Ra;
[Register(RegisterType.General)]
[FieldOffset(0x18)]
public ulong Tp;
[Register(RegisterType.General | RegisterType.StackPointer)]
[FieldOffset(0x20)]
public ulong Sp;
[Register(RegisterType.General)]
[FieldOffset(0x28)]
public ulong A0;
[Register(RegisterType.General)]
[FieldOffset(0x30)]
public ulong A1;
[Register(RegisterType.General)]
[FieldOffset(0x38)]
public ulong A2;
[Register(RegisterType.General)]
[FieldOffset(0x40)]
public ulong A3;
[Register(RegisterType.General)]
[FieldOffset(0x48)]
public ulong A4;
[Register(RegisterType.General)]
[FieldOffset(0x50)]
public ulong A5;
[Register(RegisterType.General)]
[FieldOffset(0x58)]
public ulong A6;
[Register(RegisterType.General)]
[FieldOffset(0x60)]
public ulong A7;
[Register(RegisterType.General)]
[FieldOffset(0x68)]
public ulong T0;
[Register(RegisterType.General)]
[FieldOffset(0x70)]
public ulong T1;
[Register(RegisterType.General)]
[FieldOffset(0x78)]
public ulong T2;
[Register(RegisterType.General)]
[FieldOffset(0x80)]
public ulong T3;
[Register(RegisterType.General)]
[FieldOffset(0x88)]
public ulong T4;
[Register(RegisterType.General)]
[FieldOffset(0x90)]
public ulong T5;
[Register(RegisterType.General)]
[FieldOffset(0x98)]
public ulong T6;
[Register(RegisterType.General)]
[FieldOffset(0xa0)]
public ulong T7;
[Register(RegisterType.General)]
[FieldOffset(0xa8)]
public ulong T8;
[Register(RegisterType.General)]
[FieldOffset(0xb0)]
public ulong X0;
[Register(RegisterType.General | RegisterType.FramePointer)]
[FieldOffset(0xb8)]
public ulong Fp;
[Register(RegisterType.General)]
[FieldOffset(0xc0)]
public ulong S0;
[Register(RegisterType.General)]
[FieldOffset(0xc8)]
public ulong S1;
[Register(RegisterType.General)]
[FieldOffset(0xd0)]
public ulong S2;
[Register(RegisterType.General)]
[FieldOffset(0xd8)]
public ulong S3;
[Register(RegisterType.General)]
[FieldOffset(0xe0)]
public ulong S4;
[Register(RegisterType.General)]
[FieldOffset(0xe8)]
public ulong S5;
[Register(RegisterType.General)]
[FieldOffset(0xf0)]
public ulong S6;
[Register(RegisterType.General)]
[FieldOffset(0xf8)]
public ulong S7;
[Register(RegisterType.General)]
[FieldOffset(0x100)]
public ulong S8;
#endregion
#region Control Registers
[Register(RegisterType.Control | RegisterType.ProgramCounter)]
[FieldOffset(0x108)]
public ulong Pc;
#endregion
#region Floating Point Registers
[Register(RegisterType.FloatingPoint)]
[FieldOffset(0x110)]
public unsafe fixed ulong F[32];
[Register(RegisterType.FloatingPoint)]
[FieldOffset(0x210)]
public uint Fcc;
[Register(RegisterType.FloatingPoint)]
[FieldOffset(0x214)]
public uint Fcsr;
#endregion
}
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