226 lines
8.0 KiB
C#
226 lines
8.0 KiB
C#
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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/*******************************************************************/
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/* WARNING */
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/* This file should be identical in the Bartok and Singularity */
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/* depots. Master copy resides in Bartok Depot. Changes should be */
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/* made to Bartok Depot and propagated to Singularity Depot. */
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/*******************************************************************/
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namespace System.GCs {
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using Microsoft.Bartok.Options;
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using System.Runtime.CompilerServices;
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#if SINGULARITY
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using Microsoft.Singularity;
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using Microsoft.Singularity.Isal;
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#endif
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[MixinConditional("X64")]
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[MixinConditional("ISA_IX64")]
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[Mixin(typeof(System.GCs.CalleeSaveRegisters))]
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[AccessedByRuntime("referenced from halforgc.asm")]
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internal struct CalleeSaveRegistersX64 /* : CalleeSaveRegisters */
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{
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[MixinOverride]
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internal void DebugTrace() {
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Trace.Log(Trace.Area.Stack,
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"Registers: EBX={0:x}, EDI={1:x}, ESI={2:x}, EBP={3:x}"+
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"\nR12={4:x}, R13={5:x}, R14={6:x}, R15={7:x}",
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__arglist(this.EBX, this.EDI, this.ESI, this.EBP,
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this.R12, this.R13, this.R14, this.R15));
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}
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[MixinOverride]
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internal UIntPtr GetFramePointer()
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{
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return this.EBP;
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}
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[AccessedByRuntime("referenced from halforgc.asm")]
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internal UIntPtr EBX;
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[AccessedByRuntime("referenced from halforgc.asm")]
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internal UIntPtr EDI;
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[AccessedByRuntime("referenced from halforgc.asm")]
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internal UIntPtr ESI;
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[AccessedByRuntime("referenced from halforgc.asm")]
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internal UIntPtr EBP;
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[AccessedByRuntime("referenced from halforgc.asm")]
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internal UIntPtr R12;
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[AccessedByRuntime("referenced from halforgc.asm")]
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internal UIntPtr R13;
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[AccessedByRuntime("referenced from halforgc.asm")]
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internal UIntPtr R14;
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[AccessedByRuntime("referenced from halforgc.asm")]
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internal UIntPtr R15;
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}
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[MixinConditional("X64")]
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[MixinConditional("ISA_IX64")]
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[Mixin(typeof(System.GCs.CalleeSaveLocations))]
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internal unsafe struct CalleeSaveLocationsX64 /* : CalleeSaveLocations */
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{
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#if SINGULARITY_KERNEL
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[MixinOverride]
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internal void SetCalleeSaves(SpillContext *context) {
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EBX.SetCalleeReg(&context->bx);
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EDI.SetCalleeReg(&context->di);
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ESI.SetCalleeReg(&context->si);
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EBP.SetCalleeReg(&context->bp);
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R12.SetCalleeReg(&context->r12);
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R13.SetCalleeReg(&context->r13);
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R14.SetCalleeReg(&context->r14);
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R15.SetCalleeReg(&context->r15);
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}
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#endif
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[MixinOverride]
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internal
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void SetCalleeSaves(CalleeSaveRegistersX64 *calleeSaveRegisters)
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{
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EBX.SetCalleeReg(&calleeSaveRegisters->EBX);
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EDI.SetCalleeReg(&calleeSaveRegisters->EDI);
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ESI.SetCalleeReg(&calleeSaveRegisters->ESI);
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EBP.SetCalleeReg(&calleeSaveRegisters->EBP);
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R12.SetCalleeReg(&calleeSaveRegisters->R12);
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R13.SetCalleeReg(&calleeSaveRegisters->R13);
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R14.SetCalleeReg(&calleeSaveRegisters->R14);
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R15.SetCalleeReg(&calleeSaveRegisters->R15);
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}
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[MixinOverride]
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internal void ClearCalleeSaves() {
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EBX.ClearCalleeReg();
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ESI.ClearCalleeReg();
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EDI.ClearCalleeReg();
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EBP.ClearCalleeReg();
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R12.ClearCalleeReg();
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R13.ClearCalleeReg();
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R14.ClearCalleeReg();
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R15.ClearCalleeReg();
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}
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[MixinOverride]
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internal void ScanLiveRegs(UIntPtr mask,
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NonNullReferenceVisitor referenceVisitor)
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{
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EDI.ScanLiveReg((mask >> 2) & 0x3, referenceVisitor);
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ESI.ScanLiveReg((mask >> 4) & 0x3, referenceVisitor);
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EBX.ScanLiveReg((mask >> 0) & 0x3, referenceVisitor);
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R12.ScanLiveReg((mask >> 6) & 0x3, referenceVisitor);
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R13.ScanLiveReg((mask >> 8) & 0x3, referenceVisitor);
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R14.ScanLiveReg((mask >> 10) & 0x3, referenceVisitor);
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R15.ScanLiveReg((mask >> 12) & 0x3, referenceVisitor);
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EBP.ScanLiveReg((mask >> 14) & 0x3, referenceVisitor);
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}
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[MixinOverride]
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internal void PopFrame(UIntPtr *framePointer,
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UIntPtr calleeSaveMask,
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bool framePointerOmitted,
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bool hasTransitionRecord)
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{
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UIntPtr *calleeSaveStart;
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if (framePointerOmitted) {
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calleeSaveStart = framePointer - 1;
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} else {
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VTable.Assert((calleeSaveMask & 0x100) == 0,
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"EBP should not be callee saved");
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calleeSaveStart = framePointer;
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EBP.PopFrameReg(ref calleeSaveStart);
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}
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if (hasTransitionRecord) {
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calleeSaveStart -=
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sizeof(CallStack.TransitionRecord) / sizeof(UIntPtr);
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}
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// Note: the order in which these appear is important!
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if ((calleeSaveMask & 0x1) != 0) {
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EBX.PopFrameReg(ref calleeSaveStart);
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}
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if ((calleeSaveMask & 0x80) != 0) {
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EBP.PopFrameReg(ref calleeSaveStart);
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}
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if ((calleeSaveMask & 0x4) != 0) {
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ESI.PopFrameReg(ref calleeSaveStart);
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}
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if ((calleeSaveMask & 0x2) != 0) {
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EDI.PopFrameReg(ref calleeSaveStart);
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}
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if ((calleeSaveMask & 0x8) != 0) {
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R12.PopFrameReg(ref calleeSaveStart);
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}
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if ((calleeSaveMask & 0x10) != 0) {
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R13.PopFrameReg(ref calleeSaveStart);
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}
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if ((calleeSaveMask & 0x20) != 0) {
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R14.PopFrameReg(ref calleeSaveStart);
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}
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if ((calleeSaveMask & 0x40) != 0) {
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R15.PopFrameReg(ref calleeSaveStart);
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}
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}
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[MixinOverride]
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internal void ClearFrame(UIntPtr calleeSaveMask,
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bool framePointerOmitted)
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{
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if (!framePointerOmitted) {
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VTable.Assert((calleeSaveMask & 0x100) == 0,
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"EBP should not be callee saved");
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EBP.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x1) != 0) {
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EBX.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x80) != 0) {
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EBP.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x4) != 0) {
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ESI.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x2) != 0) {
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EDI.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x8) != 0) {
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R12.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x10) != 0) {
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R13.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x20) != 0) {
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R14.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x40) != 0) {
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R15.ClearFrameReg();
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}
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}
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[MixinOverride]
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internal UIntPtr GetFramePointer()
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{
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return EBP.value;
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}
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CalleeSaveLocations.RegLocation EBX;
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CalleeSaveLocations.RegLocation EDI;
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CalleeSaveLocations.RegLocation ESI;
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CalleeSaveLocations.RegLocation EBP;
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CalleeSaveLocations.RegLocation R12;
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CalleeSaveLocations.RegLocation R13;
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CalleeSaveLocations.RegLocation R14;
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CalleeSaveLocations.RegLocation R15;
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}
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}
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