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Remove FP from register list, since the information is already present in registers r28 and r29

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This commit is contained in:
ccrause 2021-07-06 20:26:10 +02:00
parent c6e6de1294
commit 3b36f05e27
1 changed files with 9 additions and 11 deletions
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20
components/fpdebug/fpdbgavrclasses.pas
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@ -31,12 +31,9 @@ const
PCindex = 34; // 4 bytes
RegArrayLength = 35;
// Special register names
nSREG = 'SREG';
nSREG = 'SReg';
nSP = 'SP';
nPC = 'PC';
// Frame pointer for AVR is [r28:r29], but create an alias for stack frame processing
nFP = 'FP';
FPindex = 35;
// Byte level register indexes
SPLindex = 33;
@ -535,9 +532,13 @@ begin
R := AnEntry.RegisterValueList.FindRegisterByDwarfIndex(PCindex);
if R = nil then exit;
Address := R.NumValue;
R := AnEntry.RegisterValueList.FindRegisterByDwarfIndex(FPindex);
R := AnEntry.RegisterValueList.FindRegisterByDwarfIndex(28);
if R = nil then exit;
FrameBase := R.NumValue;
R := AnEntry.RegisterValueList.FindRegisterByDwarfIndex(29);
if R = nil then exit;
FrameBase := FrameBase + (byte(R.NumValue) shl 8);
R := AnEntry.RegisterValueList.FindRegisterByDwarfIndex(SPindex);
if R = nil then exit;
StackPtr := R.NumValue;
@ -554,7 +555,7 @@ begin
// Y pointer register [r28:r29] is used as frame pointer for AVR
// Store these to enable stack based parameters to be read correctly
// as they are frame pointer relative and dwarf stores the frame pointer under r28
AnEntry.RegisterValueList.DbgRegisterAutoCreate[nFP].SetValue(FrameBase, IntToStr(FrameBase),Size, FPindex);
//AnEntry.RegisterValueList.DbgRegisterAutoCreate[nFP].SetValue(FrameBase, IntToStr(FrameBase),Size, FPindex);
b := byte(FrameBase);
AnEntry.RegisterValueList.DbgRegisterAutoCreate['r28'].SetValue(b, IntToStr(b),Size, 28);
b := (FrameBase and $FF00) shr 8;
@ -605,12 +606,9 @@ begin
AnEntry := TDbgCallstackEntry.create(Self, NextIdx, FrameBase, Address);
AnEntry.RegisterValueList.DbgRegisterAutoCreate[nPC].SetValue(Address, IntToStr(Address),Size, PCindex);
AnEntry.RegisterValueList.DbgRegisterAutoCreate[nFP].SetValue(FrameBase, IntToStr(FrameBase),Size, FPindex);
AnEntry.RegisterValueList.DbgRegisterAutoCreate[nSP].SetValue(StackPtr, IntToStr(StackPtr),Size, SPindex);
b := byte(FrameBase);
AnEntry.RegisterValueList.DbgRegisterAutoCreate['r28'].SetValue(b, IntToStr(b),Size, 28);
b := (FrameBase and $FF00) shr 8;
AnEntry.RegisterValueList.DbgRegisterAutoCreate['r29'].SetValue(b, IntToStr(b),Size, 29);
AnEntry.RegisterValueList.DbgRegisterAutoCreate['r28'].SetValue(byte(FrameBase), IntToStr(b),Size, 28);
AnEntry.RegisterValueList.DbgRegisterAutoCreate['r29'].SetValue((FrameBase and $FF00) shr 8, IntToStr(b),Size, 29);
FCallStackEntryList.Add(AnEntry);
Dec(CountNeeded);