diff options
Diffstat (limited to 'include/lldb/Core/Scalar.h')
-rw-r--r-- | include/lldb/Core/Scalar.h | 654 |
1 files changed, 309 insertions, 345 deletions
diff --git a/include/lldb/Core/Scalar.h b/include/lldb/Core/Scalar.h index be2176e2b50e..cee257711c5f 100644 --- a/include/lldb/Core/Scalar.h +++ b/include/lldb/Core/Scalar.h @@ -11,8 +11,8 @@ #define liblldb_Scalar_h_ #include "lldb/lldb-private.h" -#include "llvm/ADT/APInt.h" #include "llvm/ADT/APFloat.h" +#include "llvm/ADT/APInt.h" #define NUM_OF_WORDS_INT128 2 #define BITWIDTH_INT128 128 @@ -27,343 +27,307 @@ namespace lldb_private { // their types and values before performing these operations. Type // promotion currently follows the ANSI C type promotion rules. //---------------------------------------------------------------------- -class Scalar -{ +class Scalar { public: - enum Type - { - e_void = 0, - e_sint, - e_uint, - e_slong, - e_ulong, - e_slonglong, - e_ulonglong, - e_float, - e_double, - e_long_double, - e_uint128, - e_sint128, - e_uint256, - e_sint256 - }; - - //------------------------------------------------------------------ - // Constructors and Destructors - //------------------------------------------------------------------ - Scalar(); - Scalar(int v) : m_type(e_sint), m_float((float)0) { m_integer = llvm::APInt(sizeof(int) * 8, v, true);} - Scalar(unsigned int v) : m_type(e_uint), m_float((float)0) { m_integer = llvm::APInt(sizeof(int) * 8, v);} - Scalar(long v) : m_type(e_slong), m_float((float)0) { m_integer = llvm::APInt(sizeof(long) * 8, v, true);} - Scalar(unsigned long v) : m_type(e_ulong), m_float((float)0) { m_integer = llvm::APInt(sizeof(long) * 8, v);} - Scalar(long long v) : m_type(e_slonglong), m_float((float)0) { m_integer = llvm::APInt(sizeof(long long) * 8, v, true);} - Scalar(unsigned long long v): m_type(e_ulonglong), m_float((float)0) { m_integer = llvm::APInt(sizeof(long long) * 8, v);} - Scalar(float v) : m_type(e_float), m_float(v) { m_float = llvm::APFloat(v); } - Scalar(double v) : m_type(e_double), m_float(v) { m_float = llvm::APFloat(v); } - Scalar(long double v, bool ieee_quad) - : m_type(e_long_double), m_float((float)0), m_ieee_quad(ieee_quad) - { - if(ieee_quad) - m_float = llvm::APFloat(llvm::APFloat::IEEEquad, llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, ((type128 *)&v)->x)); - else - m_float = llvm::APFloat(llvm::APFloat::x87DoubleExtended, llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, ((type128 *)&v)->x)); - } - Scalar(llvm::APInt v) : - m_type(), - m_float((float)0) - { - m_integer = llvm::APInt(v); - switch(m_integer.getBitWidth()) - { - case 8: - case 16: - case 32: - if(m_integer.isSignedIntN(sizeof(sint_t) * 8)) - m_type = e_sint; - else - m_type = e_uint; - break; - case 64: - if(m_integer.isSignedIntN(sizeof(slonglong_t) * 8)) - m_type = e_slonglong; - else - m_type = e_ulonglong; - break; - case 128: - if(m_integer.isSignedIntN(BITWIDTH_INT128)) - m_type = e_sint128; - else - m_type = e_uint128; - break; - case 256: - if(m_integer.isSignedIntN(BITWIDTH_INT256)) - m_type = e_sint256; - else - m_type = e_uint256; - break; - } - } - Scalar(const Scalar& rhs); - //Scalar(const RegisterValue& reg_value); - virtual ~Scalar(); - - bool - SignExtend (uint32_t bit_pos); - - bool - ExtractBitfield (uint32_t bit_size, - uint32_t bit_offset); - - bool - SetBit(uint32_t bit); - - bool - ClearBit(uint32_t bit); - - const void * - GetBytes() const; - - size_t - GetByteSize() const; - - bool - GetData (DataExtractor &data, size_t limit_byte_size = UINT32_MAX) const; - - size_t - GetAsMemoryData (void *dst, - size_t dst_len, - lldb::ByteOrder dst_byte_order, - Error &error) const; - - bool - IsZero() const; - - void - Clear() { m_type = e_void; m_integer.clearAllBits(); } - - const char * - GetTypeAsCString() const; - - void - GetValue (Stream *s, bool show_type) const; - - bool - IsValid() const - { - return (m_type >= e_sint) && (m_type <= e_long_double); + enum Type { + e_void = 0, + e_sint, + e_uint, + e_slong, + e_ulong, + e_slonglong, + e_ulonglong, + e_float, + e_double, + e_long_double, + e_uint128, + e_sint128, + e_uint256, + e_sint256 + }; + + //------------------------------------------------------------------ + // Constructors and Destructors + //------------------------------------------------------------------ + Scalar(); + Scalar(int v) : m_type(e_sint), m_float((float)0) { + m_integer = llvm::APInt(sizeof(int) * 8, v, true); + } + Scalar(unsigned int v) : m_type(e_uint), m_float((float)0) { + m_integer = llvm::APInt(sizeof(int) * 8, v); + } + Scalar(long v) : m_type(e_slong), m_float((float)0) { + m_integer = llvm::APInt(sizeof(long) * 8, v, true); + } + Scalar(unsigned long v) : m_type(e_ulong), m_float((float)0) { + m_integer = llvm::APInt(sizeof(long) * 8, v); + } + Scalar(long long v) : m_type(e_slonglong), m_float((float)0) { + m_integer = llvm::APInt(sizeof(long long) * 8, v, true); + } + Scalar(unsigned long long v) : m_type(e_ulonglong), m_float((float)0) { + m_integer = llvm::APInt(sizeof(long long) * 8, v); + } + Scalar(float v) : m_type(e_float), m_float(v) { m_float = llvm::APFloat(v); } + Scalar(double v) : m_type(e_double), m_float(v) { + m_float = llvm::APFloat(v); + } + Scalar(long double v, bool ieee_quad) + : m_type(e_long_double), m_float((float)0), m_ieee_quad(ieee_quad) { + if (ieee_quad) + m_float = llvm::APFloat(llvm::APFloat::IEEEquad(), + llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, + ((type128 *)&v)->x)); + else + m_float = llvm::APFloat(llvm::APFloat::x87DoubleExtended(), + llvm::APInt(BITWIDTH_INT128, NUM_OF_WORDS_INT128, + ((type128 *)&v)->x)); + } + Scalar(llvm::APInt v) : m_type(), m_float((float)0) { + m_integer = llvm::APInt(v); + switch (m_integer.getBitWidth()) { + case 8: + case 16: + case 32: + if (m_integer.isSignedIntN(sizeof(sint_t) * 8)) + m_type = e_sint; + else + m_type = e_uint; + break; + case 64: + if (m_integer.isSignedIntN(sizeof(slonglong_t) * 8)) + m_type = e_slonglong; + else + m_type = e_ulonglong; + break; + case 128: + if (m_integer.isSignedIntN(BITWIDTH_INT128)) + m_type = e_sint128; + else + m_type = e_uint128; + break; + case 256: + if (m_integer.isSignedIntN(BITWIDTH_INT256)) + m_type = e_sint256; + else + m_type = e_uint256; + break; } + } + Scalar(const Scalar &rhs); + // Scalar(const RegisterValue& reg_value); + virtual ~Scalar(); + + bool SignExtend(uint32_t bit_pos); - bool - Promote(Scalar::Type type); - - bool - Cast (Scalar::Type type); - - bool - MakeSigned (); - - bool - MakeUnsigned (); - - static const char * - GetValueTypeAsCString (Scalar::Type value_type); - - static Scalar::Type - GetValueTypeForSignedIntegerWithByteSize (size_t byte_size); - - static Scalar::Type - GetValueTypeForUnsignedIntegerWithByteSize (size_t byte_size); - - static Scalar::Type - GetValueTypeForFloatWithByteSize (size_t byte_size); - - //---------------------------------------------------------------------- - // All operators can benefits from the implicit conversions that will - // happen automagically by the compiler, so no temporary objects will - // need to be created. As a result, we currently don't need a variety of - // overloaded set value accessors. - //---------------------------------------------------------------------- - Scalar& operator= (const int i); - Scalar& operator= (unsigned int v); - Scalar& operator= (long v); - Scalar& operator= (unsigned long v); - Scalar& operator= (long long v); - Scalar& operator= (unsigned long long v); - Scalar& operator= (float v); - Scalar& operator= (double v); - Scalar& operator= (long double v); - Scalar& operator= (llvm::APInt v); - Scalar& operator= (const Scalar& rhs); // Assignment operator - Scalar& operator+= (const Scalar& rhs); - Scalar& operator<<= (const Scalar& rhs); // Shift left - Scalar& operator>>= (const Scalar& rhs); // Shift right (arithmetic) - Scalar& operator&= (const Scalar& rhs); - - //---------------------------------------------------------------------- - // Shifts the current value to the right without maintaining the current - // sign of the value (if it is signed). - //---------------------------------------------------------------------- - bool - ShiftRightLogical(const Scalar& rhs); // Returns true on success - - //---------------------------------------------------------------------- - // Takes the absolute value of the current value if it is signed, else - // the value remains unchanged. - // Returns false if the contained value has a void type. - //---------------------------------------------------------------------- - bool - AbsoluteValue(); // Returns true on success - //---------------------------------------------------------------------- - // Negates the current value (even for unsigned values). - // Returns false if the contained value has a void type. - //---------------------------------------------------------------------- - bool - UnaryNegate(); // Returns true on success - //---------------------------------------------------------------------- - // Inverts all bits in the current value as long as it isn't void or - // a float/double/long double type. - // Returns false if the contained value has a void/float/double/long - // double type, else the value is inverted and true is returned. - //---------------------------------------------------------------------- - bool - OnesComplement(); // Returns true on success - - //---------------------------------------------------------------------- - // Access the type of the current value. - //---------------------------------------------------------------------- - Scalar::Type - GetType() const { return m_type; } - - //---------------------------------------------------------------------- - // Returns a casted value of the current contained data without - // modifying the current value. FAIL_VALUE will be returned if the type - // of the value is void or invalid. - //---------------------------------------------------------------------- - int - SInt(int fail_value = 0) const; - - unsigned char - UChar(unsigned char fail_value = 0) const; - - signed char - SChar(char fail_value = 0) const; - - unsigned short - UShort(unsigned short fail_value = 0) const; - - short - SShort(short fail_value = 0) const; - - unsigned int - UInt(unsigned int fail_value = 0) const; - - long - SLong(long fail_value = 0) const; - - unsigned long - ULong(unsigned long fail_value = 0) const; - - long long - SLongLong(long long fail_value = 0) const; - - unsigned long long - ULongLong(unsigned long long fail_value = 0) const; - - llvm::APInt - SInt128(llvm::APInt& fail_value) const; - - llvm::APInt - UInt128(const llvm::APInt& fail_value) const; - - llvm::APInt - SInt256(llvm::APInt& fail_value) const; - - llvm::APInt - UInt256(const llvm::APInt& fail_value) const; - - float - Float(float fail_value = 0.0f) const; - - double - Double(double fail_value = 0.0) const; - - long double - LongDouble(long double fail_value = 0.0) const; - - Error - SetValueFromCString (const char *s, lldb::Encoding encoding, size_t byte_size); - - Error - SetValueFromData (DataExtractor &data, lldb::Encoding encoding, size_t byte_size); - - static bool - UIntValueIsValidForSize (uint64_t uval64, size_t total_byte_size) - { - if (total_byte_size > 8) - return false; - - if (total_byte_size == 8) - return true; - - const uint64_t max = ((uint64_t)1 << (uint64_t)(total_byte_size * 8)) - 1; - return uval64 <= max; - } + bool ExtractBitfield(uint32_t bit_size, uint32_t bit_offset); + + bool SetBit(uint32_t bit); + + bool ClearBit(uint32_t bit); + + const void *GetBytes() const; + + size_t GetByteSize() const; + + bool GetData(DataExtractor &data, size_t limit_byte_size = UINT32_MAX) const; - static bool - SIntValueIsValidForSize (int64_t sval64, size_t total_byte_size) - { - if (total_byte_size > 8) - return false; + size_t GetAsMemoryData(void *dst, size_t dst_len, + lldb::ByteOrder dst_byte_order, Error &error) const; - if (total_byte_size == 8) - return true; + bool IsZero() const; - const int64_t max = ((int64_t)1 << (uint64_t)(total_byte_size * 8 - 1)) - 1; - const int64_t min = ~(max); - return min <= sval64 && sval64 <= max; - } + void Clear() { + m_type = e_void; + m_integer.clearAllBits(); + } + + const char *GetTypeAsCString() const; + + void GetValue(Stream *s, bool show_type) const; + + bool IsValid() const { + return (m_type >= e_sint) && (m_type <= e_long_double); + } + + bool Promote(Scalar::Type type); + + bool Cast(Scalar::Type type); + + bool MakeSigned(); + + bool MakeUnsigned(); + + static const char *GetValueTypeAsCString(Scalar::Type value_type); + + static Scalar::Type + GetValueTypeForSignedIntegerWithByteSize(size_t byte_size); + + static Scalar::Type + GetValueTypeForUnsignedIntegerWithByteSize(size_t byte_size); + + static Scalar::Type GetValueTypeForFloatWithByteSize(size_t byte_size); + + //---------------------------------------------------------------------- + // All operators can benefits from the implicit conversions that will + // happen automagically by the compiler, so no temporary objects will + // need to be created. As a result, we currently don't need a variety of + // overloaded set value accessors. + //---------------------------------------------------------------------- + Scalar &operator=(const int i); + Scalar &operator=(unsigned int v); + Scalar &operator=(long v); + Scalar &operator=(unsigned long v); + Scalar &operator=(long long v); + Scalar &operator=(unsigned long long v); + Scalar &operator=(float v); + Scalar &operator=(double v); + Scalar &operator=(long double v); + Scalar &operator=(llvm::APInt v); + Scalar &operator=(const Scalar &rhs); // Assignment operator + Scalar &operator+=(const Scalar &rhs); + Scalar &operator<<=(const Scalar &rhs); // Shift left + Scalar &operator>>=(const Scalar &rhs); // Shift right (arithmetic) + Scalar &operator&=(const Scalar &rhs); + + //---------------------------------------------------------------------- + // Shifts the current value to the right without maintaining the current + // sign of the value (if it is signed). + //---------------------------------------------------------------------- + bool ShiftRightLogical(const Scalar &rhs); // Returns true on success + + //---------------------------------------------------------------------- + // Takes the absolute value of the current value if it is signed, else + // the value remains unchanged. + // Returns false if the contained value has a void type. + //---------------------------------------------------------------------- + bool AbsoluteValue(); // Returns true on success + //---------------------------------------------------------------------- + // Negates the current value (even for unsigned values). + // Returns false if the contained value has a void type. + //---------------------------------------------------------------------- + bool UnaryNegate(); // Returns true on success + //---------------------------------------------------------------------- + // Inverts all bits in the current value as long as it isn't void or + // a float/double/long double type. + // Returns false if the contained value has a void/float/double/long + // double type, else the value is inverted and true is returned. + //---------------------------------------------------------------------- + bool OnesComplement(); // Returns true on success + + //---------------------------------------------------------------------- + // Access the type of the current value. + //---------------------------------------------------------------------- + Scalar::Type GetType() const { return m_type; } + + //---------------------------------------------------------------------- + // Returns a casted value of the current contained data without + // modifying the current value. FAIL_VALUE will be returned if the type + // of the value is void or invalid. + //---------------------------------------------------------------------- + int SInt(int fail_value = 0) const; + + unsigned char UChar(unsigned char fail_value = 0) const; + + signed char SChar(char fail_value = 0) const; + + unsigned short UShort(unsigned short fail_value = 0) const; + + short SShort(short fail_value = 0) const; + + unsigned int UInt(unsigned int fail_value = 0) const; + + long SLong(long fail_value = 0) const; + + unsigned long ULong(unsigned long fail_value = 0) const; + + long long SLongLong(long long fail_value = 0) const; + + unsigned long long ULongLong(unsigned long long fail_value = 0) const; + + llvm::APInt SInt128(llvm::APInt &fail_value) const; + + llvm::APInt UInt128(const llvm::APInt &fail_value) const; + + llvm::APInt SInt256(llvm::APInt &fail_value) const; + + llvm::APInt UInt256(const llvm::APInt &fail_value) const; + + float Float(float fail_value = 0.0f) const; + + double Double(double fail_value = 0.0) const; + + long double LongDouble(long double fail_value = 0.0) const; + + Error SetValueFromCString(const char *s, lldb::Encoding encoding, + size_t byte_size); + + Error SetValueFromData(DataExtractor &data, lldb::Encoding encoding, + size_t byte_size); + + static bool UIntValueIsValidForSize(uint64_t uval64, size_t total_byte_size) { + if (total_byte_size > 8) + return false; + + if (total_byte_size == 8) + return true; + + const uint64_t max = ((uint64_t)1 << (uint64_t)(total_byte_size * 8)) - 1; + return uval64 <= max; + } + + static bool SIntValueIsValidForSize(int64_t sval64, size_t total_byte_size) { + if (total_byte_size > 8) + return false; + + if (total_byte_size == 8) + return true; + + const int64_t max = ((int64_t)1 << (uint64_t)(total_byte_size * 8 - 1)) - 1; + const int64_t min = ~(max); + return min <= sval64 && sval64 <= max; + } protected: - typedef char schar_t; - typedef unsigned char uchar_t; - typedef short sshort_t; - typedef unsigned short ushort_t; - typedef int sint_t; - typedef unsigned int uint_t; - typedef long slong_t; - typedef unsigned long ulong_t; - typedef long long slonglong_t; - typedef unsigned long long ulonglong_t; - typedef float float_t; - typedef double double_t; - typedef long double long_double_t; - - //------------------------------------------------------------------ - // Classes that inherit from Scalar can see and modify these - //------------------------------------------------------------------ - Scalar::Type m_type; - llvm::APInt m_integer; - llvm::APFloat m_float; - bool m_ieee_quad = false; + typedef char schar_t; + typedef unsigned char uchar_t; + typedef short sshort_t; + typedef unsigned short ushort_t; + typedef int sint_t; + typedef unsigned int uint_t; + typedef long slong_t; + typedef unsigned long ulong_t; + typedef long long slonglong_t; + typedef unsigned long long ulonglong_t; + typedef float float_t; + typedef double double_t; + typedef long double long_double_t; + + //------------------------------------------------------------------ + // Classes that inherit from Scalar can see and modify these + //------------------------------------------------------------------ + Scalar::Type m_type; + llvm::APInt m_integer; + llvm::APFloat m_float; + bool m_ieee_quad = false; private: - friend const Scalar operator+ (const Scalar& lhs, const Scalar& rhs); - friend const Scalar operator- (const Scalar& lhs, const Scalar& rhs); - friend const Scalar operator/ (const Scalar& lhs, const Scalar& rhs); - friend const Scalar operator* (const Scalar& lhs, const Scalar& rhs); - friend const Scalar operator& (const Scalar& lhs, const Scalar& rhs); - friend const Scalar operator| (const Scalar& lhs, const Scalar& rhs); - friend const Scalar operator% (const Scalar& lhs, const Scalar& rhs); - friend const Scalar operator^ (const Scalar& lhs, const Scalar& rhs); - friend const Scalar operator<< (const Scalar& lhs, const Scalar& rhs); - friend const Scalar operator>> (const Scalar& lhs, const Scalar& rhs); - friend bool operator== (const Scalar& lhs, const Scalar& rhs); - friend bool operator!= (const Scalar& lhs, const Scalar& rhs); - friend bool operator< (const Scalar& lhs, const Scalar& rhs); - friend bool operator<= (const Scalar& lhs, const Scalar& rhs); - friend bool operator> (const Scalar& lhs, const Scalar& rhs); - friend bool operator>= (const Scalar& lhs, const Scalar& rhs); - + friend const Scalar operator+(const Scalar &lhs, const Scalar &rhs); + friend const Scalar operator-(const Scalar &lhs, const Scalar &rhs); + friend const Scalar operator/(const Scalar &lhs, const Scalar &rhs); + friend const Scalar operator*(const Scalar &lhs, const Scalar &rhs); + friend const Scalar operator&(const Scalar &lhs, const Scalar &rhs); + friend const Scalar operator|(const Scalar &lhs, const Scalar &rhs); + friend const Scalar operator%(const Scalar &lhs, const Scalar &rhs); + friend const Scalar operator^(const Scalar &lhs, const Scalar &rhs); + friend const Scalar operator<<(const Scalar &lhs, const Scalar &rhs); + friend const Scalar operator>>(const Scalar &lhs, const Scalar &rhs); + friend bool operator==(const Scalar &lhs, const Scalar &rhs); + friend bool operator!=(const Scalar &lhs, const Scalar &rhs); + friend bool operator<(const Scalar &lhs, const Scalar &rhs); + friend bool operator<=(const Scalar &lhs, const Scalar &rhs); + friend bool operator>(const Scalar &lhs, const Scalar &rhs); + friend bool operator>=(const Scalar &lhs, const Scalar &rhs); }; //---------------------------------------------------------------------- @@ -381,23 +345,23 @@ private: // Differentiate among members functions, non-member functions, and // friend functions //---------------------------------------------------------------------- -const Scalar operator+ (const Scalar& lhs, const Scalar& rhs); -const Scalar operator- (const Scalar& lhs, const Scalar& rhs); -const Scalar operator/ (const Scalar& lhs, const Scalar& rhs); -const Scalar operator* (const Scalar& lhs, const Scalar& rhs); -const Scalar operator& (const Scalar& lhs, const Scalar& rhs); -const Scalar operator| (const Scalar& lhs, const Scalar& rhs); -const Scalar operator% (const Scalar& lhs, const Scalar& rhs); -const Scalar operator^ (const Scalar& lhs, const Scalar& rhs); -const Scalar operator<< (const Scalar& lhs, const Scalar& rhs); -const Scalar operator>> (const Scalar& lhs, const Scalar& rhs); -bool operator== (const Scalar& lhs, const Scalar& rhs); -bool operator!= (const Scalar& lhs, const Scalar& rhs); -bool operator< (const Scalar& lhs, const Scalar& rhs); -bool operator<= (const Scalar& lhs, const Scalar& rhs); -bool operator> (const Scalar& lhs, const Scalar& rhs); -bool operator>= (const Scalar& lhs, const Scalar& rhs); +const Scalar operator+(const Scalar &lhs, const Scalar &rhs); +const Scalar operator-(const Scalar &lhs, const Scalar &rhs); +const Scalar operator/(const Scalar &lhs, const Scalar &rhs); +const Scalar operator*(const Scalar &lhs, const Scalar &rhs); +const Scalar operator&(const Scalar &lhs, const Scalar &rhs); +const Scalar operator|(const Scalar &lhs, const Scalar &rhs); +const Scalar operator%(const Scalar &lhs, const Scalar &rhs); +const Scalar operator^(const Scalar &lhs, const Scalar &rhs); +const Scalar operator<<(const Scalar &lhs, const Scalar &rhs); +const Scalar operator>>(const Scalar &lhs, const Scalar &rhs); +bool operator==(const Scalar &lhs, const Scalar &rhs); +bool operator!=(const Scalar &lhs, const Scalar &rhs); +bool operator<(const Scalar &lhs, const Scalar &rhs); +bool operator<=(const Scalar &lhs, const Scalar &rhs); +bool operator>(const Scalar &lhs, const Scalar &rhs); +bool operator>=(const Scalar &lhs, const Scalar &rhs); } // namespace lldb_private -#endif // liblldb_Scalar_h_ +#endif // liblldb_Scalar_h_ |