* Copyright 2012, Alex Smith, alex@alex-smith.me.uk.
* Copyright 2009-2012, Ingo Weinhold, ingo_weinhold@gmx.de.
* Copyright 2011-2013, Rene Gollent, rene@gollent.com.
* Distributed under the terms of the MIT License.
*/
#include "CpuStateX8664.h"
#include <new>
#include <string.h>
#include "Register.h"
CpuStateX8664::CpuStateX8664()
:
fSetRegisters()
{
}
CpuStateX8664::CpuStateX8664(const x86_64_debug_cpu_state& state)
:
fSetRegisters(),
fInterruptVector(0)
{
SetIntRegister(X86_64_REGISTER_RIP, state.rip);
SetIntRegister(X86_64_REGISTER_RSP, state.rsp);
SetIntRegister(X86_64_REGISTER_RBP, state.rbp);
SetIntRegister(X86_64_REGISTER_RAX, state.rax);
SetIntRegister(X86_64_REGISTER_RBX, state.rbx);
SetIntRegister(X86_64_REGISTER_RCX, state.rcx);
SetIntRegister(X86_64_REGISTER_RDX, state.rdx);
SetIntRegister(X86_64_REGISTER_RSI, state.rsi);
SetIntRegister(X86_64_REGISTER_RDI, state.rdi);
SetIntRegister(X86_64_REGISTER_R8, state.r8);
SetIntRegister(X86_64_REGISTER_R9, state.r9);
SetIntRegister(X86_64_REGISTER_R10, state.r10);
SetIntRegister(X86_64_REGISTER_R11, state.r11);
SetIntRegister(X86_64_REGISTER_R12, state.r12);
SetIntRegister(X86_64_REGISTER_R13, state.r13);
SetIntRegister(X86_64_REGISTER_R14, state.r14);
SetIntRegister(X86_64_REGISTER_R15, state.r15);
SetIntRegister(X86_64_REGISTER_CS, state.cs);
SetIntRegister(X86_64_REGISTER_DS, state.ds);
SetIntRegister(X86_64_REGISTER_ES, state.es);
SetIntRegister(X86_64_REGISTER_FS, state.fs);
SetIntRegister(X86_64_REGISTER_GS, state.gs);
SetIntRegister(X86_64_REGISTER_SS, state.ss);
const struct savefpu& extended = state.extended_registers;
SetFloatRegister(X86_64_REGISTER_ST0,
(double)(*(long double*)(extended.fp_fxsave.fp[0].value)));
SetFloatRegister(X86_64_REGISTER_ST1,
(double)(*(long double*)(extended.fp_fxsave.fp[1].value)));
SetFloatRegister(X86_64_REGISTER_ST2,
(double)(*(long double*)(extended.fp_fxsave.fp[2].value)));
SetFloatRegister(X86_64_REGISTER_ST3,
(double)(*(long double*)(extended.fp_fxsave.fp[3].value)));
SetFloatRegister(X86_64_REGISTER_ST4,
(double)(*(long double*)(extended.fp_fxsave.fp[4].value)));
SetFloatRegister(X86_64_REGISTER_ST5,
(double)(*(long double*)(extended.fp_fxsave.fp[5].value)));
SetFloatRegister(X86_64_REGISTER_ST6,
(double)(*(long double*)(extended.fp_fxsave.fp[6].value)));
SetFloatRegister(X86_64_REGISTER_ST7,
(double)(*(long double*)(extended.fp_fxsave.fp[7].value)));
SetMMXRegister(X86_64_REGISTER_MM0, extended.fp_fxsave.mmx[0].value);
SetMMXRegister(X86_64_REGISTER_MM1, extended.fp_fxsave.mmx[1].value);
SetMMXRegister(X86_64_REGISTER_MM2, extended.fp_fxsave.mmx[2].value);
SetMMXRegister(X86_64_REGISTER_MM3, extended.fp_fxsave.mmx[3].value);
SetMMXRegister(X86_64_REGISTER_MM4, extended.fp_fxsave.mmx[4].value);
SetMMXRegister(X86_64_REGISTER_MM5, extended.fp_fxsave.mmx[5].value);
SetMMXRegister(X86_64_REGISTER_MM6, extended.fp_fxsave.mmx[6].value);
SetMMXRegister(X86_64_REGISTER_MM7, extended.fp_fxsave.mmx[7].value);
SetXMMRegister(X86_64_REGISTER_XMM0, extended.fp_ymm[0].value,
extended.fp_fxsave.xmm[0].value);
SetXMMRegister(X86_64_REGISTER_XMM1, extended.fp_ymm[1].value,
extended.fp_fxsave.xmm[1].value);
SetXMMRegister(X86_64_REGISTER_XMM2, extended.fp_ymm[2].value,
extended.fp_fxsave.xmm[2].value);
SetXMMRegister(X86_64_REGISTER_XMM3, extended.fp_ymm[3].value,
extended.fp_fxsave.xmm[3].value);
SetXMMRegister(X86_64_REGISTER_XMM4, extended.fp_ymm[4].value,
extended.fp_fxsave.xmm[4].value);
SetXMMRegister(X86_64_REGISTER_XMM5, extended.fp_ymm[5].value,
extended.fp_fxsave.xmm[5].value);
SetXMMRegister(X86_64_REGISTER_XMM6, extended.fp_ymm[6].value,
extended.fp_fxsave.xmm[6].value);
SetXMMRegister(X86_64_REGISTER_XMM7, extended.fp_ymm[7].value,
extended.fp_fxsave.xmm[7].value);
SetXMMRegister(X86_64_REGISTER_XMM8, extended.fp_ymm[8].value,
extended.fp_fxsave.xmm[8].value);
SetXMMRegister(X86_64_REGISTER_XMM9, extended.fp_ymm[9].value,
extended.fp_fxsave.xmm[9].value);
SetXMMRegister(X86_64_REGISTER_XMM10, extended.fp_ymm[10].value,
extended.fp_fxsave.xmm[10].value);
SetXMMRegister(X86_64_REGISTER_XMM11, extended.fp_ymm[11].value,
extended.fp_fxsave.xmm[11].value);
SetXMMRegister(X86_64_REGISTER_XMM12, extended.fp_ymm[12].value,
extended.fp_fxsave.xmm[12].value);
SetXMMRegister(X86_64_REGISTER_XMM13, extended.fp_ymm[13].value,
extended.fp_fxsave.xmm[13].value);
SetXMMRegister(X86_64_REGISTER_XMM14, extended.fp_ymm[14].value,
extended.fp_fxsave.xmm[14].value);
SetXMMRegister(X86_64_REGISTER_XMM15, extended.fp_ymm[15].value,
extended.fp_fxsave.xmm[15].value);
fInterruptVector = state.vector;
}
CpuStateX8664::~CpuStateX8664()
{
}
status_t
CpuStateX8664::Clone(CpuState*& _clone) const
{
CpuStateX8664* newState = new(std::nothrow) CpuStateX8664();
if (newState == NULL)
return B_NO_MEMORY;
memcpy(newState->fIntRegisters, fIntRegisters, sizeof(fIntRegisters));
memcpy(newState->fFloatRegisters, fFloatRegisters,
sizeof(fFloatRegisters));
memcpy(newState->fMMXRegisters, fMMXRegisters, sizeof(fMMXRegisters));
memcpy(newState->fXMMRegisters, fXMMRegisters, sizeof(fXMMRegisters));
newState->fSetRegisters = fSetRegisters;
newState->fInterruptVector = fInterruptVector;
_clone = newState;
return B_OK;
}
status_t
CpuStateX8664::UpdateDebugState(void* state, size_t size) const
{
if (size != sizeof(x86_64_debug_cpu_state))
return B_BAD_VALUE;
x86_64_debug_cpu_state* x64State = (x86_64_debug_cpu_state*)state;
x64State->rip = InstructionPointer();
x64State->rsp = StackPointer();
x64State->rbp = StackFramePointer();
x64State->rax = IntRegisterValue(X86_64_REGISTER_RAX);
x64State->rbx = IntRegisterValue(X86_64_REGISTER_RBX);
x64State->rcx = IntRegisterValue(X86_64_REGISTER_RCX);
x64State->rdx = IntRegisterValue(X86_64_REGISTER_RDX);
x64State->rsi = IntRegisterValue(X86_64_REGISTER_RSI);
x64State->rdi = IntRegisterValue(X86_64_REGISTER_RDI);
x64State->r8 = IntRegisterValue(X86_64_REGISTER_R8);
x64State->r9 = IntRegisterValue(X86_64_REGISTER_R9);
x64State->r10 = IntRegisterValue(X86_64_REGISTER_R10);
x64State->r11 = IntRegisterValue(X86_64_REGISTER_R11);
x64State->r12 = IntRegisterValue(X86_64_REGISTER_R12);
x64State->r13 = IntRegisterValue(X86_64_REGISTER_R13);
x64State->r14 = IntRegisterValue(X86_64_REGISTER_R14);
x64State->r15 = IntRegisterValue(X86_64_REGISTER_R15);
x64State->cs = IntRegisterValue(X86_64_REGISTER_CS);
x64State->ds = IntRegisterValue(X86_64_REGISTER_DS);
x64State->es = IntRegisterValue(X86_64_REGISTER_ES);
x64State->fs = IntRegisterValue(X86_64_REGISTER_FS);
x64State->gs = IntRegisterValue(X86_64_REGISTER_GS);
x64State->ss = IntRegisterValue(X86_64_REGISTER_SS);
for (int32 i = 0; i < 8; i++) {
*(long double*)(x64State->extended_registers.fp_fxsave.fp[i].value)
= (long double)FloatRegisterValue(X86_64_REGISTER_ST0 + i);
if (IsRegisterSet(X86_64_REGISTER_MM0 + i)) {
memcpy(&x64State->extended_registers.fp_fxsave.mmx[i],
&fMMXRegisters[i], sizeof(x86_64_fp_register));
}
}
for (int32 i = 0; i < 16; i++) {
if (IsRegisterSet(X86_64_REGISTER_XMM0 + i)) {
memcpy(&x64State->extended_registers.fp_fxsave.xmm[i],
&fXMMRegisters[i], sizeof(x86_64_xmm_register));
} else {
memset(&x64State->extended_registers.fp_fxsave.xmm[i],
0, sizeof(x86_64_xmm_register));
}
}
return B_OK;
}
target_addr_t
CpuStateX8664::InstructionPointer() const
{
return IsRegisterSet(X86_64_REGISTER_RIP)
? IntRegisterValue(X86_64_REGISTER_RIP) : 0;
}
void
CpuStateX8664::SetInstructionPointer(target_addr_t address)
{
SetIntRegister(X86_64_REGISTER_RIP, address);
}
target_addr_t
CpuStateX8664::StackFramePointer() const
{
return IsRegisterSet(X86_64_REGISTER_RBP)
? IntRegisterValue(X86_64_REGISTER_RBP) : 0;
}
target_addr_t
CpuStateX8664::StackPointer() const
{
return IsRegisterSet(X86_64_REGISTER_RSP)
? IntRegisterValue(X86_64_REGISTER_RSP) : 0;
}
bool
CpuStateX8664::GetRegisterValue(const Register* reg, BVariant& _value) const
{
int32 index = reg->Index();
if (!IsRegisterSet(index))
return false;
if (index >= X86_64_XMM_REGISTER_END)
return false;
if (BVariant::TypeIsInteger(reg->ValueType())) {
if (reg->BitSize() == 16)
_value.SetTo((uint16)fIntRegisters[index]);
else
_value.SetTo(fIntRegisters[index]);
} else if (BVariant::TypeIsFloat(reg->ValueType())) {
index -= X86_64_REGISTER_ST0;
if (reg->ValueType() == B_FLOAT_TYPE)
_value.SetTo((float)fFloatRegisters[index]);
else
_value.SetTo(fFloatRegisters[index]);
} else {
if (index >= X86_64_REGISTER_MM0 && index < X86_64_REGISTER_XMM0) {
index -= X86_64_REGISTER_MM0;
_value.SetTo(fMMXRegisters[index].value);
} else {
index -= X86_64_REGISTER_XMM0;
_value.SetTo(fXMMRegisters[index].value);
}
}
return true;
}
bool
CpuStateX8664::SetRegisterValue(const Register* reg, const BVariant& value)
{
int32 index = reg->Index();
if (index >= X86_64_XMM_REGISTER_END)
return false;
if (index < X86_64_INT_REGISTER_END)
fIntRegisters[index] = value.ToUInt64();
else if (index >= X86_64_REGISTER_ST0 && index < X86_64_FP_REGISTER_END)
fFloatRegisters[index - X86_64_REGISTER_ST0] = value.ToDouble();
else if (index >= X86_64_REGISTER_MM0 && index < X86_64_MMX_REGISTER_END) {
if (value.Size() > sizeof(int64))
return false;
memset(&fMMXRegisters[index - X86_64_REGISTER_MM0], 0,
sizeof(x86_64_fp_register));
memcpy(fMMXRegisters[index - X86_64_REGISTER_MM0].value,
value.ToPointer(), value.Size());
} else if (index >= X86_64_REGISTER_XMM0
&& index < X86_64_XMM_REGISTER_END) {
if (value.Size() > sizeof(x86_64_xmm_register))
return false;
memset(&fXMMRegisters[index - X86_64_REGISTER_XMM0], 0,
sizeof(x86_64_xmm_register));
memcpy(fXMMRegisters[index - X86_64_REGISTER_XMM0].value,
value.ToPointer(), value.Size());
} else
return false;
fSetRegisters[index] = 1;
return true;
}
bool
CpuStateX8664::IsRegisterSet(int32 index) const
{
return index >= 0 && index < X86_64_REGISTER_COUNT && fSetRegisters[index];
}
uint64
CpuStateX8664::IntRegisterValue(int32 index) const
{
if (!IsRegisterSet(index) || index >= X86_64_INT_REGISTER_END)
return 0;
return fIntRegisters[index];
}
void
CpuStateX8664::SetIntRegister(int32 index, uint64 value)
{
if (index < 0 || index >= X86_64_INT_REGISTER_END)
return;
fIntRegisters[index] = value;
fSetRegisters[index] = 1;
}
double
CpuStateX8664::FloatRegisterValue(int32 index) const
{
if (index < X86_64_REGISTER_ST0 || index >= X86_64_FP_REGISTER_END
|| !IsRegisterSet(index)) {
return 0.0;
}
return fFloatRegisters[index - X86_64_REGISTER_ST0];
}
void
CpuStateX8664::SetFloatRegister(int32 index, double value)
{
if (index < X86_64_REGISTER_ST0 || index >= X86_64_FP_REGISTER_END)
return;
fFloatRegisters[index - X86_64_REGISTER_ST0] = value;
fSetRegisters[index] = 1;
}
const void*
CpuStateX8664::MMXRegisterValue(int32 index) const
{
if (index < X86_64_REGISTER_MM0 || index >= X86_64_MMX_REGISTER_END
|| !IsRegisterSet(index)) {
return 0;
}
return fMMXRegisters[index - X86_64_REGISTER_MM0].value;
}
void
CpuStateX8664::SetMMXRegister(int32 index, const uint8* value)
{
if (index < X86_64_REGISTER_MM0 || index >= X86_64_MMX_REGISTER_END)
return;
memcpy(fMMXRegisters[index - X86_64_REGISTER_MM0].value, value,
sizeof(uint64));
fSetRegisters[index] = 1;
}
const void*
CpuStateX8664::XMMRegisterValue(int32 index) const
{
if (index < X86_64_REGISTER_XMM0 || index >= X86_64_XMM_REGISTER_END
|| !IsRegisterSet(index)) {
return NULL;
}
return fXMMRegisters[index - X86_64_REGISTER_XMM0].value;
}
void
CpuStateX8664::SetXMMRegister(int32 index, const uint8* highValue, const uint8* lowValue)
{
if (index < X86_64_REGISTER_XMM0 || index >= X86_64_XMM_REGISTER_END)
return;
memcpy(&fXMMRegisters[index - X86_64_REGISTER_XMM0].value[0], lowValue,
sizeof(x86_64_xmm_register));
memcpy(&fXMMRegisters[index - X86_64_REGISTER_XMM0].value[2], highValue,
sizeof(x86_64_xmm_register));
fSetRegisters[index] = 1;
}
void
CpuStateX8664::UnsetRegister(int32 index)
{
if (index < 0 || index >= X86_64_REGISTER_COUNT)
return;
fSetRegisters[index] = 0;
}
