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//===-- RegisterContextDarwin_i386.h ----------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_RegisterContextDarwin_i386_h_
#define liblldb_RegisterContextDarwin_i386_h_
// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/lldb-private.h"
#include "lldb/Target/RegisterContext.h"
class RegisterContextDarwin_i386 : public lldb_private::RegisterContext
{
public:
RegisterContextDarwin_i386(lldb_private::Thread &thread,
uint32_t concrete_frame_idx);
virtual
~RegisterContextDarwin_i386();
virtual void
InvalidateAllRegisters ();
virtual size_t
GetRegisterCount ();
virtual const lldb_private::RegisterInfo *
GetRegisterInfoAtIndex (size_t reg);
virtual size_t
GetRegisterSetCount ();
virtual const lldb_private::RegisterSet *
GetRegisterSet (size_t set);
virtual bool
ReadRegister (const lldb_private::RegisterInfo *reg_info, lldb_private::RegisterValue &value);
virtual bool
WriteRegister (const lldb_private::RegisterInfo *reg_info, const lldb_private::RegisterValue &value);
virtual bool
ReadAllRegisterValues (lldb::DataBufferSP &data_sp);
virtual bool
WriteAllRegisterValues (const lldb::DataBufferSP &data_sp);
virtual uint32_t
ConvertRegisterKindToRegisterNumber (lldb::RegisterKind kind, uint32_t num);
virtual bool
HardwareSingleStep (bool enable);
struct GPR
{
uint32_t eax;
uint32_t ebx;
uint32_t ecx;
uint32_t edx;
uint32_t edi;
uint32_t esi;
uint32_t ebp;
uint32_t esp;
uint32_t ss;
uint32_t eflags;
uint32_t eip;
uint32_t cs;
uint32_t ds;
uint32_t es;
uint32_t fs;
uint32_t gs;
};
struct MMSReg
{
uint8_t bytes[10];
uint8_t pad[6];
};
struct XMMReg
{
uint8_t bytes[16];
};
struct FPU
{
uint32_t pad[2];
uint16_t fcw;
uint16_t fsw;
uint8_t ftw;
uint8_t pad1;
uint16_t fop;
uint32_t ip;
uint16_t cs;
uint16_t pad2;
uint32_t dp;
uint16_t ds;
uint16_t pad3;
uint32_t mxcsr;
uint32_t mxcsrmask;
MMSReg stmm[8];
XMMReg xmm[8];
uint8_t pad4[14*16];
int pad5;
};
struct EXC
{
uint32_t trapno;
uint32_t err;
uint32_t faultvaddr;
};
protected:
enum
{
GPRRegSet = 1,
FPURegSet = 2,
EXCRegSet = 3
};
enum
{
GPRWordCount = sizeof(GPR)/sizeof(uint32_t),
FPUWordCount = sizeof(FPU)/sizeof(uint32_t),
EXCWordCount = sizeof(EXC)/sizeof(uint32_t)
};
enum
{
Read = 0,
Write = 1,
kNumErrors = 2
};
GPR gpr;
FPU fpu;
EXC exc;
int gpr_errs[2]; // Read/Write errors
int fpu_errs[2]; // Read/Write errors
int exc_errs[2]; // Read/Write errors
void
InvalidateAllRegisterStates()
{
SetError (GPRRegSet, Read, -1);
SetError (FPURegSet, Read, -1);
SetError (EXCRegSet, Read, -1);
}
int
GetError (int flavor, uint32_t err_idx) const
{
if (err_idx < kNumErrors)
{
switch (flavor)
{
// When getting all errors, just OR all values together to see if
// we got any kind of error.
case GPRRegSet: return gpr_errs[err_idx];
case FPURegSet: return fpu_errs[err_idx];
case EXCRegSet: return exc_errs[err_idx];
default: break;
}
}
return -1;
}
bool
SetError (int flavor, uint32_t err_idx, int err)
{
if (err_idx < kNumErrors)
{
switch (flavor)
{
case GPRRegSet:
gpr_errs[err_idx] = err;
return true;
case FPURegSet:
fpu_errs[err_idx] = err;
return true;
case EXCRegSet:
exc_errs[err_idx] = err;
return true;
default: break;
}
}
return false;
}
bool
RegisterSetIsCached (int set) const
{
return GetError(set, Read) == 0;
}
void
LogGPR (lldb_private::Log *log, const char *title);
int
ReadGPR (bool force);
int
ReadFPU (bool force);
int
ReadEXC (bool force);
int
WriteGPR ();
int
WriteFPU ();
int
WriteEXC ();
// Subclasses override these to do the actual reading.
virtual int
DoReadGPR (lldb::tid_t tid, int flavor, GPR &gpr) = 0;
virtual int
DoReadFPU (lldb::tid_t tid, int flavor, FPU &fpu) = 0;
virtual int
DoReadEXC (lldb::tid_t tid, int flavor, EXC &exc) = 0;
virtual int
DoWriteGPR (lldb::tid_t tid, int flavor, const GPR &gpr) = 0;
virtual int
DoWriteFPU (lldb::tid_t tid, int flavor, const FPU &fpu) = 0;
virtual int
DoWriteEXC (lldb::tid_t tid, int flavor, const EXC &exc) = 0;
int
ReadRegisterSet (uint32_t set, bool force);
int
WriteRegisterSet (uint32_t set);
static uint32_t
GetRegisterNumber (uint32_t reg_kind, uint32_t reg_num);
static int
GetSetForNativeRegNum (int reg_num);
static size_t
GetRegisterInfosCount ();
static const lldb_private::RegisterInfo *
GetRegisterInfos ();
};
#endif // liblldb_RegisterContextDarwin_i386_h_
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