221 lines
7.7 KiB
C#
221 lines
7.7 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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using Microsoft.Singularity.Isal.Arm;
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#endif
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[MixinConditional("ARM")]
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[MixinConditional("ISA_ARM")]
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[Mixin(typeof(System.GCs.CalleeSaveRegisters))]
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[AccessedByRuntime("Referenced from halforgc.asm")]
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internal struct CalleeSaveRegistersARM /* : 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: R4={0:x}, R5={0:x}, R6={0:x}, R7={0:x},\n R8={0:x}, R9={0:x}, R10={0:x}, R11={0:x}",
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__arglist(this.r4, this.r5, this.r6, this.r7,
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this.r8, this.r9, this.r10, this.r11));
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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.r11;
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}
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[AccessedByRuntime("Referenced from halforgc.asm")]
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internal UIntPtr r4;
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[AccessedByRuntime("Referenced from halforgc.asm")]
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internal UIntPtr r5;
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[AccessedByRuntime("Referenced from halforgc.asm")]
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internal UIntPtr r6;
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[AccessedByRuntime("Referenced from halforgc.asm")]
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internal UIntPtr r7;
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[AccessedByRuntime("Referenced from halforgc.asm")]
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internal UIntPtr r8;
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[AccessedByRuntime("Referenced from halforgc.asm")]
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internal UIntPtr r9;
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[AccessedByRuntime("Referenced from halforgc.asm")]
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internal UIntPtr r10;
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[AccessedByRuntime("Referenced from halforgc.asm")]
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internal UIntPtr r11;
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}
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[MixinConditional("ARM")]
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[MixinConditional("ISA_ARM")]
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[Mixin(typeof(System.GCs.CalleeSaveLocations))]
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internal unsafe struct CalleeSaveLocationsARM /* : CalleeSaveLocations */
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{
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#if SINGULARITY_KERNEL
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#if false
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[MixinOverride]
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internal void SetCalleeSaves(SpillContext *context) {
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r4.SetCalleeReg(&context->r4);
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r5.SetCalleeReg(&context->r5);
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r6.SetCalleeReg(&context->r6);
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r7.SetCalleeReg(&context->r7);
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r8.SetCalleeReg(&context->r8);
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r9.SetCalleeReg(&context->r9);
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r10.SetCalleeReg(&context->r10);
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r11.SetCalleeReg(&context->r11);
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}
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#endif
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#endif
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[MixinOverride]
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internal
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void SetCalleeSaves(CalleeSaveRegistersARM *calleeSaveRegisters)
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{
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r4.SetCalleeReg(&calleeSaveRegisters->r4);
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r5.SetCalleeReg(&calleeSaveRegisters->r5);
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r6.SetCalleeReg(&calleeSaveRegisters->r6);
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r7.SetCalleeReg(&calleeSaveRegisters->r7);
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r8.SetCalleeReg(&calleeSaveRegisters->r8);
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r9.SetCalleeReg(&calleeSaveRegisters->r9);
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r10.SetCalleeReg(&calleeSaveRegisters->r10);
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r11.SetCalleeReg(&calleeSaveRegisters->r11);
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}
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[MixinOverride]
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internal void ClearCalleeSaves() {
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r4.ClearCalleeReg();
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r5.ClearCalleeReg();
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r6.ClearCalleeReg();
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r7.ClearCalleeReg();
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r8.ClearCalleeReg();
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r9.ClearCalleeReg();
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r10.ClearCalleeReg();
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r11.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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r4.ScanLiveReg((mask >> 0) & 0x3, referenceVisitor);
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r5.ScanLiveReg((mask >> 2) & 0x3, referenceVisitor);
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r6.ScanLiveReg((mask >> 4) & 0x3, referenceVisitor);
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r7.ScanLiveReg((mask >> 6) & 0x3, referenceVisitor);
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r8.ScanLiveReg((mask >> 8) & 0x3, referenceVisitor);
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r9.ScanLiveReg((mask >> 10) & 0x3, referenceVisitor);
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r10.ScanLiveReg((mask >> 12) & 0x3, referenceVisitor);
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r11.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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calleeSaveStart = framePointer - 3; // Step over SP & LR
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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 (!framePointerOmitted || (calleeSaveMask & 0x80) != 0) {
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r11.PopFrameReg(ref calleeSaveStart);
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}
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if ((calleeSaveMask & 0x40) != 0) {
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r10.PopFrameReg(ref calleeSaveStart);
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}
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if ((calleeSaveMask & 0x20) != 0) {
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r9.PopFrameReg(ref calleeSaveStart);
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}
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if ((calleeSaveMask & 0x10) != 0) {
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r8.PopFrameReg(ref calleeSaveStart);
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}
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if ((calleeSaveMask & 0x8) != 0) {
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r7.PopFrameReg(ref calleeSaveStart);
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}
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if ((calleeSaveMask & 0x4) != 0) {
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r6.PopFrameReg(ref calleeSaveStart);
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}
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if ((calleeSaveMask & 0x2) != 0) {
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r5.PopFrameReg(ref calleeSaveStart);
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}
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if ((calleeSaveMask & 0x1) != 0) {
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r4.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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r11.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x1) != 0) {
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r4.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x2) != 0) {
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r5.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x4) != 0) {
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r6.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x8) != 0) {
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r7.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x10) != 0) {
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r8.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x20) != 0) {
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r9.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x40) != 0) {
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r10.ClearFrameReg();
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}
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if ((calleeSaveMask & 0x80) != 0) {
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r11.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 r11.value;
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}
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CalleeSaveLocations.RegLocation r4;
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CalleeSaveLocations.RegLocation r5;
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CalleeSaveLocations.RegLocation r6;
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CalleeSaveLocations.RegLocation r7;
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CalleeSaveLocations.RegLocation r8;
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CalleeSaveLocations.RegLocation r9;
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CalleeSaveLocations.RegLocation r10;
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CalleeSaveLocations.RegLocation r11;
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}
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}
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