| //===-- MICmnLLDBProxySBValue.cpp -------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| //++ |
| // File: MICmnLLDBProxySBValue.cpp |
| // |
| // Overview: CMICmnLLDBProxySBValue implementation. |
| // |
| // Environment: Compilers: Visual C++ 12. |
| // gcc (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1 |
| // Libraries: See MIReadmetxt. |
| // |
| // Copyright: None. |
| //-- |
| |
| #include <stdlib.h> |
| |
| // Third Party Headers: |
| #include <lldb/API/SBError.h> |
| |
| // In-house headers: |
| #include "MICmnLLDBProxySBValue.h" |
| #include "MIUtilString.h" |
| #include "MICmnLLDBDebugSessionInfo.h" |
| |
| //++ ------------------------------------------------------------------------------------ |
| // Details: Retrieve the numerical value from the SBValue object. If the function fails |
| // it could indicate the SBValue object does not represent an internal type. |
| // Type: Static method. |
| // Args: vrValue - (R) The SBValue object to get a value from. |
| // vwValue - (W) The numerical value. |
| // Return: MIstatus::success - Functionality succeeded. |
| // MIstatus::failure - Functionality failed. |
| // Throws: None. |
| //-- |
| bool |
| CMICmnLLDBProxySBValue::GetValueAsUnsigned(const lldb::SBValue &vrValue, MIuint64 &vwValue) |
| { |
| lldb::SBValue &rValue = const_cast<lldb::SBValue &>(vrValue); |
| bool bCompositeType = true; |
| MIuint64 nFailValue = 0; |
| MIuint64 nValue = rValue.GetValueAsUnsigned(nFailValue); |
| if (nValue == nFailValue) |
| { |
| nFailValue = 5; // Some arbitary number |
| nValue = rValue.GetValueAsUnsigned(nFailValue); |
| if (nValue != nFailValue) |
| { |
| bCompositeType = false; |
| vwValue = nValue; |
| } |
| } |
| else |
| { |
| bCompositeType = false; |
| vwValue = nValue; |
| } |
| |
| return (bCompositeType ? MIstatus::failure : MIstatus::success); |
| } |
| |
| //++ ------------------------------------------------------------------------------------ |
| // Details: Retrieve the numerical value from the SBValue object. If the function fails |
| // it could indicate the SBValue object does not represent an internal type. |
| // Type: Static method. |
| // Args: vrValue - (R) The SBValue object to get a value from. |
| // vwValue - (W) The numerical value. |
| // Return: MIstatus::success - Functionality succeeded. |
| // MIstatus::failure - Functionality failed. |
| // Throws: None. |
| //-- |
| bool |
| CMICmnLLDBProxySBValue::GetValueAsSigned(const lldb::SBValue &vrValue, MIint64 &vwValue) |
| { |
| lldb::SBValue &rValue = const_cast<lldb::SBValue &>(vrValue); |
| bool bCompositeType = true; |
| MIuint64 nFailValue = 0; |
| MIuint64 nValue = rValue.GetValueAsSigned(nFailValue); |
| if (nValue == nFailValue) |
| { |
| nFailValue = 5; // Some arbitary number |
| nValue = rValue.GetValueAsSigned(nFailValue); |
| if (nValue != nFailValue) |
| { |
| bCompositeType = false; |
| vwValue = nValue; |
| } |
| } |
| else |
| { |
| bCompositeType = false; |
| vwValue = nValue; |
| } |
| |
| return (bCompositeType ? MIstatus::failure : MIstatus::success); |
| } |
| |
| //++ ------------------------------------------------------------------------------------ |
| // Details: Retrieve the NUL terminated string from the SBValue object if it of the type |
| // unsigned char *. |
| // Type: Static method. |
| // Args: vrValue - (R) The SBValue object to get a value from. |
| // vwCString - (W) The text data '\0' terminated. |
| // Return: MIstatus::success - Functionality succeeded. |
| // MIstatus::failure - Functionality failed, not suitable type. |
| // Throws: None. |
| //-- |
| bool |
| CMICmnLLDBProxySBValue::GetCString(const lldb::SBValue &vrValue, CMIUtilString &vwCString) |
| { |
| lldb::SBValue &rValue = const_cast<lldb::SBValue &>(vrValue); |
| const MIchar *pCType = rValue.GetTypeName(); |
| if (pCType == nullptr) |
| return MIstatus::failure; |
| |
| const MIchar *pType = "unsigned char *"; |
| if (!CMIUtilString::Compare(pCType, pType)) |
| return MIstatus::failure; |
| |
| const CMIUtilString strAddr(rValue.GetValue()); |
| MIint64 nNum = 0; |
| if (!strAddr.ExtractNumber(nNum)) |
| return MIstatus::failure; |
| |
| CMICmnLLDBDebugSessionInfo &rSessionInfo(CMICmnLLDBDebugSessionInfo::Instance()); |
| lldb::SBProcess &rProcess = rSessionInfo.m_lldbProcess; |
| MIuint nBufferSize = 64; |
| bool bNeedResize = false; |
| MIchar *pBuffer = static_cast<MIchar *>(::malloc(nBufferSize)); |
| do |
| { |
| lldb::SBError error; |
| const size_t nReadSize = rProcess.ReadCStringFromMemory((lldb::addr_t)nNum, pBuffer, nBufferSize, error); |
| if (nReadSize == (nBufferSize - 1)) |
| { |
| bNeedResize = true; |
| nBufferSize = nBufferSize << 1; |
| pBuffer = static_cast<MIchar *>(::realloc(pBuffer, nBufferSize)); |
| } |
| else |
| bNeedResize = false; |
| } while (bNeedResize); |
| |
| vwCString = pBuffer; |
| free((void *)pBuffer); |
| |
| return MIstatus::success; |
| } |