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//===-- DNBArchImpl.h -------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Created by Greg Clayton on 6/25/07.
//
//===----------------------------------------------------------------------===//
#ifndef __DebugNubArchMachPPC_h__
#define __DebugNubArchMachPPC_h__
#if defined(__powerpc__) || defined(__ppc__) || defined(__ppc64__)
#include "DNBArch.h"
class MachThread;
class DNBArchMachPPC : public DNBArchProtocol {
public:
DNBArchMachPPC(MachThread *thread) : m_thread(thread), m_state() {}
virtual ~DNBArchMachPPC() {}
virtual const DNBRegisterSetInfo *
GetRegisterSetInfo(nub_size_t *num_reg_sets) const;
virtual bool GetRegisterValue(uint32_t set, uint32_t reg,
DNBRegisterValue *value) const;
virtual kern_return_t GetRegisterState(int set, bool force);
virtual kern_return_t SetRegisterState(int set);
virtual bool RegisterSetStateIsValid(int set) const;
virtual uint64_t GetPC(uint64_t failValue); // Get program counter
virtual kern_return_t SetPC(uint64_t value);
virtual uint64_t GetSP(uint64_t failValue); // Get stack pointer
virtual bool ThreadWillResume();
virtual bool ThreadDidStop();
static const uint8_t *SoftwareBreakpointOpcode(nub_size_t byte_size);
static uint32_t GetCPUType();
protected:
kern_return_t EnableHardwareSingleStep(bool enable);
typedef enum RegisterSetTag {
e_regSetALL = REGISTER_SET_ALL,
e_regSetGPR,
e_regSetFPR,
e_regSetEXC,
e_regSetVEC,
kNumRegisterSets
} RegisterSet;
typedef enum RegisterSetWordSizeTag {
e_regSetWordSizeGPR = PPC_THREAD_STATE_COUNT,
e_regSetWordSizeFPR = PPC_FLOAT_STATE_COUNT,
e_regSetWordSizeEXC = PPC_EXCEPTION_STATE_COUNT,
e_regSetWordSizeVEC = PPC_VECTOR_STATE_COUNT
} RegisterSetWordSize;
enum { Read = 0, Write = 1, kNumErrors = 2 };
struct State {
ppc_thread_state_t gpr;
ppc_float_state_t fpr;
ppc_exception_state_t exc;
ppc_vector_state_t vec;
kern_return_t gpr_errs[2]; // Read/Write errors
kern_return_t fpr_errs[2]; // Read/Write errors
kern_return_t exc_errs[2]; // Read/Write errors
kern_return_t vec_errs[2]; // Read/Write errors
State() {
uint32_t i;
for (i = 0; i < kNumErrors; i++) {
gpr_errs[i] = -1;
fpr_errs[i] = -1;
exc_errs[i] = -1;
vec_errs[i] = -1;
}
}
void InvalidateAllRegisterStates() { SetError(e_regSetALL, Read, -1); }
kern_return_t GetError(int set, uint32_t err_idx) const {
if (err_idx < kNumErrors) {
switch (set) {
// When getting all errors, just OR all values together to see if
// we got any kind of error.
case e_regSetALL:
return gpr_errs[err_idx] | fpr_errs[err_idx] | exc_errs[err_idx] |
vec_errs[err_idx];
case e_regSetGPR:
return gpr_errs[err_idx];
case e_regSetFPR:
return fpr_errs[err_idx];
case e_regSetEXC:
return exc_errs[err_idx];
case e_regSetVEC:
return vec_errs[err_idx];
default:
break;
}
}
return -1;
}
bool SetError(int set, uint32_t err_idx, kern_return_t err) {
if (err_idx < kNumErrors) {
switch (set) {
case e_regSetALL:
gpr_errs[err_idx] = fpr_errs[err_idx] = exc_errs[err_idx] =
vec_errs[err_idx] = err;
return true;
case e_regSetGPR:
gpr_errs[err_idx] = err;
return true;
case e_regSetFPR:
fpr_errs[err_idx] = err;
return true;
case e_regSetEXC:
exc_errs[err_idx] = err;
return true;
case e_regSetVEC:
vec_errs[err_idx] = err;
return true;
default:
break;
}
}
return false;
}
bool RegsAreValid(int set) const {
return GetError(set, Read) == KERN_SUCCESS;
}
};
kern_return_t GetGPRState(bool force);
kern_return_t GetFPRState(bool force);
kern_return_t GetEXCState(bool force);
kern_return_t GetVECState(bool force);
kern_return_t SetGPRState();
kern_return_t SetFPRState();
kern_return_t SetEXCState();
kern_return_t SetVECState();
protected:
MachThread *m_thread;
State m_state;
};
#endif // #if defined (__powerpc__) || defined (__ppc__) || defined (__ppc64__)
#endif // #ifndef __DebugNubArchMachPPC_h__
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