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Debugger: Implement ArchitectureX8664::GetReturnAddressLocation().

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This commit is contained in:
Rene Gollent 2013-07-27 22:57:37 -04:00
parent d1189a6c75
commit 4dcab59fe7
1 changed files with 32 additions and 2 deletions
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34
src/apps/debugger/arch/x86_64/ArchitectureX8664.cpp
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@ -24,6 +24,7 @@
#include "StackFrame.h"
#include "Statement.h"
#include "TeamMemory.h"
#include "ValueLocation.h"
#include "X86AssemblyLanguage.h"
#include "disasm/DisassemblerX8664.h"
@ -639,8 +640,37 @@ ArchitectureX8664::GetWatchpointDebugCapabilities(int32& _maxRegisterCount,
status_t
ArchitectureX8664::GetReturnAddressLocation(StackFrame* frame,
target_size_t valueSize, ValueLocation*& _location) {
return B_NOT_SUPPORTED;
target_size_t valueSize, ValueLocation*& _location)
{
// for the calling conventions currently in use on Haiku,
// the x86-64 rules for how values are returned are as follows:
//
// - 64 bit or smaller values are returned in RAX.
// - > 64 bit values are returned on the stack.
ValueLocation* location = new(std::nothrow) ValueLocation(
IsBigEndian());
if (location == NULL)
return B_NO_MEMORY;
BReference<ValueLocation> locationReference(location,
true);
if (valueSize <= 8) {
ValuePieceLocation piece;
piece.SetSize(valueSize);
piece.SetToRegister(X86_64_REGISTER_RAX);
if (!location->AddPiece(piece))
return B_NO_MEMORY;
} else {
ValuePieceLocation piece;
CpuStateX8664* state = dynamic_cast<CpuStateX8664*>(frame->GetCpuState());
piece.SetToMemory(state->IntRegisterValue(X86_64_REGISTER_RAX));
piece.SetSize(valueSize);
if (!location->AddPiece(piece))
return B_NO_MEMORY;
}
_location = locationReference.Detach();
return B_OK;
}