1 //===-- RegisterValue.cpp ----------------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 #include "lldb/Core/RegisterValue.h"
14 // Other libraries and framework includes
16 #include "lldb/Core/DataExtractor.h"
17 #include "lldb/Core/Error.h"
18 #include "lldb/Core/Scalar.h"
19 #include "lldb/Core/Stream.h"
20 #include "lldb/Core/StreamString.h"
21 #include "lldb/Interpreter/Args.h"
22 #include "lldb/Host/StringConvert.h"
25 using namespace lldb_private;
29 RegisterValue::Dump (Stream *s,
30 const RegisterInfo *reg_info,
31 bool prefix_with_name,
32 bool prefix_with_alt_name,
34 uint32_t reg_name_right_align_at) const
39 bool name_printed = false;
40 // For simplicity, alignment of the register name printing applies only
41 // in the most common case where:
43 // prefix_with_name^prefix_with_alt_name is true
45 StreamString format_string;
46 if (reg_name_right_align_at && (prefix_with_name^prefix_with_alt_name))
47 format_string.Printf("%%%us", reg_name_right_align_at);
49 format_string.Printf("%%s");
50 const char *fmt = format_string.GetData();
55 s->Printf (fmt, reg_info->name);
58 else if (reg_info->alt_name)
60 s->Printf (fmt, reg_info->alt_name);
61 prefix_with_alt_name = false;
65 if (prefix_with_alt_name)
69 if (reg_info->alt_name)
71 s->Printf (fmt, reg_info->alt_name);
74 else if (!name_printed)
76 // No alternate name but we were asked to display a name, so show the main name
77 s->Printf (fmt, reg_info->name);
82 s->PutCString (" = ");
84 if (format == eFormatDefault)
85 format = reg_info->format;
88 0, // Offset in "data"
89 format, // Format to use when dumping
90 reg_info->byte_size, // item_byte_size
92 UINT32_MAX, // num_per_line
93 LLDB_INVALID_ADDRESS, // base_addr
95 0); // item_bit_offset
103 RegisterValue::GetData (DataExtractor &data) const
105 return data.SetData(GetBytes(), GetByteSize(), GetByteOrder()) > 0;
110 RegisterValue::GetAsMemoryData (const RegisterInfo *reg_info,
113 lldb::ByteOrder dst_byte_order,
116 if (reg_info == NULL)
118 error.SetErrorString ("invalid register info argument.");
122 // ReadRegister should have already been called on tgus object prior to
124 if (GetType() == eTypeInvalid)
126 // No value has been read into this object...
127 error.SetErrorStringWithFormat("invalid register value type for register %s", reg_info->name);
131 if (dst_len > kMaxRegisterByteSize)
133 error.SetErrorString ("destination is too big");
137 const uint32_t src_len = reg_info->byte_size;
139 // Extract the register data into a data extractor
140 DataExtractor reg_data;
141 if (!GetData(reg_data))
143 error.SetErrorString ("invalid register value to copy into");
147 // Prepare a memory buffer that contains some or all of the register value
148 const uint32_t bytes_copied = reg_data.CopyByteOrderedData (0, // src offset
149 src_len, // src length
151 dst_len, // dst length
152 dst_byte_order); // dst byte order
153 if (bytes_copied == 0)
154 error.SetErrorStringWithFormat("failed to copy data for register write of %s", reg_info->name);
160 RegisterValue::SetFromMemoryData (const RegisterInfo *reg_info,
163 lldb::ByteOrder src_byte_order,
166 if (reg_info == NULL)
168 error.SetErrorString ("invalid register info argument.");
172 // Moving from addr into a register
174 // Case 1: src_len == dst_len
176 // |AABBCCDD| Address contents
177 // |AABBCCDD| Register contents
179 // Case 2: src_len > dst_len
181 // Error! (The register should always be big enough to hold the data)
183 // Case 3: src_len < dst_len
185 // |AABB| Address contents
186 // |AABB0000| Register contents [on little-endian hardware]
187 // |0000AABB| Register contents [on big-endian hardware]
188 if (src_len > kMaxRegisterByteSize)
190 error.SetErrorStringWithFormat ("register buffer is too small to receive %u bytes of data.", src_len);
194 const uint32_t dst_len = reg_info->byte_size;
196 if (src_len > dst_len)
198 error.SetErrorStringWithFormat("%u bytes is too big to store in register %s (%u bytes)", src_len, reg_info->name, dst_len);
202 // Use a data extractor to correctly copy and pad the bytes read into the
204 DataExtractor src_data (src, src_len, src_byte_order, 4);
206 // Given the register info, set the value type of this RegisterValue object
208 // And make sure we were able to figure out what that register value was
209 RegisterValue::Type value_type = GetType();
210 if (value_type == eTypeInvalid)
212 // No value has been read into this object...
213 error.SetErrorStringWithFormat("invalid register value type for register %s", reg_info->name);
216 else if (value_type == eTypeBytes)
218 m_data.buffer.byte_order = src_byte_order;
219 // Make sure to set the buffer length of the destination buffer to avoid
220 // problems due to uninitalized variables.
221 m_data.buffer.length = src_len;
224 const uint32_t bytes_copied = src_data.CopyByteOrderedData (0, // src offset
225 src_len, // src length
226 GetBytes(), // dst buffer
227 GetByteSize(), // dst length
228 GetByteOrder()); // dst byte order
229 if (bytes_copied == 0)
230 error.SetErrorStringWithFormat("failed to copy data for register write of %s", reg_info->name);
236 RegisterValue::GetScalarValue (Scalar &scalar) const
240 case eTypeInvalid: break;
243 switch (m_data.buffer.length)
246 case 1: scalar = m_data.uint8; return true;
247 case 2: scalar = m_data.uint16; return true;
248 case 4: scalar = m_data.uint32; return true;
249 case 8: scalar = m_data.uint64; return true;
252 case eTypeUInt8: scalar = m_data.uint8; return true;
253 case eTypeUInt16: scalar = m_data.uint16; return true;
254 case eTypeUInt32: scalar = m_data.uint32; return true;
255 case eTypeUInt64: scalar = m_data.uint64; return true;
256 #if defined (ENABLE_128_BIT_SUPPORT)
257 case eTypeUInt128: break;
259 case eTypeFloat: scalar = m_data.ieee_float; return true;
260 case eTypeDouble: scalar = m_data.ieee_double; return true;
261 case eTypeLongDouble: scalar = m_data.ieee_long_double; return true;
267 RegisterValue::Clear()
269 m_type = eTypeInvalid;
273 RegisterValue::SetType (const RegisterInfo *reg_info)
275 m_type = eTypeInvalid;
276 const uint32_t byte_size = reg_info->byte_size;
277 switch (reg_info->encoding)
279 case eEncodingInvalid:
286 else if (byte_size <= 2)
287 m_type = eTypeUInt16;
288 else if (byte_size <= 4)
289 m_type = eTypeUInt32;
290 else if (byte_size <= 8)
291 m_type = eTypeUInt64;
292 #if defined (ENABLE_128_BIT_SUPPORT)
293 else if (byte_size <= 16)
294 m_type = eTypeUInt128;
298 case eEncodingIEEE754:
299 if (byte_size == sizeof(float))
301 else if (byte_size == sizeof(double))
302 m_type = eTypeDouble;
303 else if (byte_size == sizeof(long double))
304 m_type = eTypeLongDouble;
307 case eEncodingVector:
315 RegisterValue::SetValueFromData (const RegisterInfo *reg_info, DataExtractor &src, lldb::offset_t src_offset, bool partial_data_ok)
319 if (src.GetByteSize() == 0)
321 error.SetErrorString ("empty data.");
325 if (reg_info->byte_size == 0)
327 error.SetErrorString ("invalid register info.");
331 uint32_t src_len = src.GetByteSize() - src_offset;
333 if (!partial_data_ok && (src_len < reg_info->byte_size))
335 error.SetErrorString ("not enough data.");
339 // Cap the data length if there is more than enough bytes for this register
341 if (src_len > reg_info->byte_size)
342 src_len = reg_info->byte_size;
344 // Zero out the value in case we get partial data...
345 memset (m_data.buffer.bytes, 0, sizeof (m_data.buffer.bytes));
347 switch (SetType (reg_info))
350 error.SetErrorString("");
352 case eTypeUInt8: SetUInt8 (src.GetMaxU32 (&src_offset, src_len)); break;
353 case eTypeUInt16: SetUInt16 (src.GetMaxU32 (&src_offset, src_len)); break;
354 case eTypeUInt32: SetUInt32 (src.GetMaxU32 (&src_offset, src_len)); break;
355 case eTypeUInt64: SetUInt64 (src.GetMaxU64 (&src_offset, src_len)); break;
356 #if defined (ENABLE_128_BIT_SUPPORT)
359 __uint128_t data1 = src.GetU64 (&src_offset);
360 __uint128_t data2 = src.GetU64 (&src_offset);
361 if (src.GetByteSize() == eByteOrderBig)
362 SetUInt128 (data1 << 64 + data2);
364 SetUInt128 (data2 << 64 + data1);
368 case eTypeFloat: SetFloat (src.GetFloat (&src_offset)); break;
369 case eTypeDouble: SetDouble(src.GetDouble (&src_offset)); break;
370 case eTypeLongDouble: SetFloat (src.GetLongDouble (&src_offset)); break;
373 m_data.buffer.length = reg_info->byte_size;
374 m_data.buffer.byte_order = src.GetByteOrder();
375 assert (m_data.buffer.length <= kMaxRegisterByteSize);
376 if (m_data.buffer.length > kMaxRegisterByteSize)
377 m_data.buffer.length = kMaxRegisterByteSize;
378 if (src.CopyByteOrderedData (src_offset, // offset within "src" to start extracting data
379 src_len, // src length
380 m_data.buffer.bytes, // dst buffer
381 m_data.buffer.length, // dst length
382 m_data.buffer.byte_order) == 0)// dst byte order
384 error.SetErrorString ("data copy failed data.");
393 #include "llvm/ADT/StringRef.h"
395 static inline void StripSpaces(llvm::StringRef &Str)
397 while (!Str.empty() && isspace(Str[0]))
399 while (!Str.empty() && isspace(Str.back()))
400 Str = Str.substr(0, Str.size()-1);
402 static inline void LStrip(llvm::StringRef &Str, char c)
404 if (!Str.empty() && Str.front() == c)
407 static inline void RStrip(llvm::StringRef &Str, char c)
409 if (!Str.empty() && Str.back() == c)
410 Str = Str.substr(0, Str.size()-1);
412 // Helper function for RegisterValue::SetValueFromCString()
414 ParseVectorEncoding(const RegisterInfo *reg_info, const char *vector_str, const uint32_t byte_size, RegisterValue *reg_value)
416 // Example: vector_str = "{0x2c 0x4b 0x2a 0x3e 0xd0 0x4f 0x2a 0x3e 0xac 0x4a 0x2a 0x3e 0x84 0x4f 0x2a 0x3e}".
417 llvm::StringRef Str(vector_str);
425 // The first split should give us:
426 // ('0x2c', '0x4b 0x2a 0x3e 0xd0 0x4f 0x2a 0x3e 0xac 0x4a 0x2a 0x3e 0x84 0x4f 0x2a 0x3e').
427 std::pair<llvm::StringRef, llvm::StringRef> Pair = Str.split(Sep);
428 std::vector<uint8_t> bytes;
431 // Using radix auto-sensing by passing 0 as the radix.
432 // Keep on processing the vector elements as long as the parsing succeeds and the vector size is < byte_size.
433 while (!Pair.first.getAsInteger(0, byte) && bytes.size() < byte_size) {
434 bytes.push_back(byte);
435 Pair = Pair.second.split(Sep);
438 // Check for vector of exact byte_size elements.
439 if (bytes.size() != byte_size)
442 reg_value->SetBytes(&(bytes.front()), byte_size, eByteOrderLittle);
446 RegisterValue::SetValueFromCString (const RegisterInfo *reg_info, const char *value_str)
449 if (reg_info == NULL)
451 error.SetErrorString ("Invalid register info argument.");
455 if (value_str == NULL || value_str[0] == '\0')
457 error.SetErrorString ("Invalid c-string value string.");
460 bool success = false;
461 const uint32_t byte_size = reg_info->byte_size;
462 switch (reg_info->encoding)
464 case eEncodingInvalid:
465 error.SetErrorString ("Invalid encoding.");
469 if (byte_size <= sizeof (uint64_t))
471 uint64_t uval64 = StringConvert::ToUInt64(value_str, UINT64_MAX, 0, &success);
473 error.SetErrorStringWithFormat ("'%s' is not a valid unsigned integer string value", value_str);
474 else if (!Args::UInt64ValueIsValidForByteSize (uval64, byte_size))
475 error.SetErrorStringWithFormat ("value 0x%" PRIx64 " is too large to fit in a %u byte unsigned integer value", uval64, byte_size);
478 if (!SetUInt (uval64, reg_info->byte_size))
479 error.SetErrorStringWithFormat ("unsupported unsigned integer byte size: %u", byte_size);
484 error.SetErrorStringWithFormat ("unsupported unsigned integer byte size: %u", byte_size);
490 if (byte_size <= sizeof (long long))
492 uint64_t sval64 = StringConvert::ToSInt64(value_str, INT64_MAX, 0, &success);
494 error.SetErrorStringWithFormat ("'%s' is not a valid signed integer string value", value_str);
495 else if (!Args::SInt64ValueIsValidForByteSize (sval64, byte_size))
496 error.SetErrorStringWithFormat ("value 0x%" PRIx64 " is too large to fit in a %u byte signed integer value", sval64, byte_size);
499 if (!SetUInt (sval64, reg_info->byte_size))
500 error.SetErrorStringWithFormat ("unsupported signed integer byte size: %u", byte_size);
505 error.SetErrorStringWithFormat ("unsupported signed integer byte size: %u", byte_size);
510 case eEncodingIEEE754:
511 if (byte_size == sizeof (float))
513 if (::sscanf (value_str, "%f", &m_data.ieee_float) == 1)
516 error.SetErrorStringWithFormat ("'%s' is not a valid float string value", value_str);
518 else if (byte_size == sizeof (double))
520 if (::sscanf (value_str, "%lf", &m_data.ieee_double) == 1)
521 m_type = eTypeDouble;
523 error.SetErrorStringWithFormat ("'%s' is not a valid float string value", value_str);
525 else if (byte_size == sizeof (long double))
527 if (::sscanf (value_str, "%Lf", &m_data.ieee_long_double) == 1)
528 m_type = eTypeLongDouble;
530 error.SetErrorStringWithFormat ("'%s' is not a valid float string value", value_str);
534 error.SetErrorStringWithFormat ("unsupported float byte size: %u", byte_size);
539 case eEncodingVector:
540 if (!ParseVectorEncoding(reg_info, value_str, byte_size, this))
541 error.SetErrorString ("unrecognized vector encoding string value.");
545 m_type = eTypeInvalid;
552 RegisterValue::SignExtend (uint32_t sign_bitpos)
560 if (sign_bitpos == (8-1))
562 else if (sign_bitpos < (8-1))
564 uint8_t sign_bit = 1u << sign_bitpos;
565 if (m_data.uint8 & sign_bit)
567 const uint8_t mask = ~(sign_bit) + 1u;
568 m_data.uint8 |= mask;
575 if (sign_bitpos == (16-1))
577 else if (sign_bitpos < (16-1))
579 uint16_t sign_bit = 1u << sign_bitpos;
580 if (m_data.uint16 & sign_bit)
582 const uint16_t mask = ~(sign_bit) + 1u;
583 m_data.uint16 |= mask;
590 if (sign_bitpos == (32-1))
592 else if (sign_bitpos < (32-1))
594 uint32_t sign_bit = 1u << sign_bitpos;
595 if (m_data.uint32 & sign_bit)
597 const uint32_t mask = ~(sign_bit) + 1u;
598 m_data.uint32 |= mask;
605 if (sign_bitpos == (64-1))
607 else if (sign_bitpos < (64-1))
609 uint64_t sign_bit = 1ull << sign_bitpos;
610 if (m_data.uint64 & sign_bit)
612 const uint64_t mask = ~(sign_bit) + 1ull;
613 m_data.uint64 |= mask;
619 #if defined (ENABLE_128_BIT_SUPPORT)
621 if (sign_bitpos == (128-1))
623 else if (sign_bitpos < (128-1))
625 __uint128_t sign_bit = (__uint128_t)1u << sign_bitpos;
626 if (m_data.uint128 & sign_bit)
628 const uint128_t mask = ~(sign_bit) + 1u;
629 m_data.uint128 |= mask;
637 case eTypeLongDouble:
645 RegisterValue::CopyValue (const RegisterValue &rhs)
652 case eTypeUInt8: m_data.uint8 = rhs.m_data.uint8; break;
653 case eTypeUInt16: m_data.uint16 = rhs.m_data.uint16; break;
654 case eTypeUInt32: m_data.uint32 = rhs.m_data.uint32; break;
655 case eTypeUInt64: m_data.uint64 = rhs.m_data.uint64; break;
656 #if defined (ENABLE_128_BIT_SUPPORT)
657 case eTypeUInt128: m_data.uint128 = rhs.m_data.uint128; break;
659 case eTypeFloat: m_data.ieee_float = rhs.m_data.ieee_float; break;
660 case eTypeDouble: m_data.ieee_double = rhs.m_data.ieee_double; break;
661 case eTypeLongDouble: m_data.ieee_long_double = rhs.m_data.ieee_long_double; break;
663 assert (rhs.m_data.buffer.length <= kMaxRegisterByteSize);
664 ::memcpy (m_data.buffer.bytes, rhs.m_data.buffer.bytes, kMaxRegisterByteSize);
665 m_data.buffer.length = rhs.m_data.buffer.length;
666 m_data.buffer.byte_order = rhs.m_data.buffer.byte_order;
673 RegisterValue::GetAsUInt16 (uint16_t fail_value, bool *success_ptr) const
681 case eTypeUInt8: return m_data.uint8;
682 case eTypeUInt16: return m_data.uint16;
685 switch (m_data.buffer.length)
688 case 1: return m_data.uint8;
689 case 2: return m_data.uint16;
695 *success_ptr = false;
700 RegisterValue::GetAsUInt32 (uint32_t fail_value, bool *success_ptr) const
707 case eTypeUInt8: return m_data.uint8;
708 case eTypeUInt16: return m_data.uint16;
709 case eTypeUInt32: return m_data.uint32;
711 if (sizeof(float) == sizeof(uint32_t))
712 return m_data.uint32;
715 if (sizeof(double) == sizeof(uint32_t))
716 return m_data.uint32;
718 case eTypeLongDouble:
719 if (sizeof(long double) == sizeof(uint32_t))
720 return m_data.uint32;
724 switch (m_data.buffer.length)
727 case 1: return m_data.uint8;
728 case 2: return m_data.uint16;
729 case 4: return m_data.uint32;
735 *success_ptr = false;
740 RegisterValue::GetAsUInt64 (uint64_t fail_value, bool *success_ptr) const
747 case eTypeUInt8: return m_data.uint8;
748 case eTypeUInt16: return m_data.uint16;
749 case eTypeUInt32: return m_data.uint32;
750 case eTypeUInt64: return m_data.uint64;
752 if (sizeof(float) == sizeof(uint64_t))
753 return m_data.uint64;
756 if (sizeof(double) == sizeof(uint64_t))
757 return m_data.uint64;
759 case eTypeLongDouble:
760 if (sizeof(long double) == sizeof(uint64_t))
761 return m_data.uint64;
765 switch (m_data.buffer.length)
768 case 1: return m_data.uint8;
769 case 2: return m_data.uint16;
770 case 4: return m_data.uint32;
771 case 8: return m_data.uint64;
777 *success_ptr = false;
781 #if defined (ENABLE_128_BIT_SUPPORT)
783 RegisterValue::GetAsUInt128 (__uint128_t fail_value, bool *success_ptr) const
790 case eTypeUInt8: return m_data.uint8;
791 case eTypeUInt16: return m_data.uint16;
792 case eTypeUInt32: return m_data.uint32;
793 case eTypeUInt64: return m_data.uint64;
794 case eTypeUInt128: return m_data.uint128;
796 if (sizeof(float) == sizeof(__uint128_t))
797 return m_data.uint128;
800 if (sizeof(double) == sizeof(__uint128_t))
801 return m_data.uint128;
803 case eTypeLongDouble:
804 if (sizeof(long double) == sizeof(__uint128_t))
805 return m_data.uint128;
809 switch (m_data.buffer.length)
813 case 1: return m_data.uint8;
814 case 2: return m_data.uint16;
815 case 4: return m_data.uint32;
816 case 8: return m_data.uint64;
817 case 16: return m_data.uint128;
823 *success_ptr = false;
828 RegisterValue::GetAsFloat (float fail_value, bool *success_ptr) const
836 if (sizeof(float) == sizeof(m_data.uint32))
837 return m_data.ieee_float;
840 if (sizeof(float) == sizeof(m_data.uint64))
841 return m_data.ieee_float;
843 #if defined (ENABLE_128_BIT_SUPPORT)
845 if (sizeof(float) == sizeof(m_data.uint128))
846 return m_data.ieee_float;
849 case eTypeFloat: return m_data.ieee_float;
851 if (sizeof(float) == sizeof(double))
852 return m_data.ieee_float;
854 case eTypeLongDouble:
855 if (sizeof(float) == sizeof(long double))
856 return m_data.ieee_float;
860 *success_ptr = false;
865 RegisterValue::GetAsDouble (double fail_value, bool *success_ptr) const
875 if (sizeof(double) == sizeof(m_data.uint32))
876 return m_data.ieee_double;
880 if (sizeof(double) == sizeof(m_data.uint64))
881 return m_data.ieee_double;
884 #if defined (ENABLE_128_BIT_SUPPORT)
886 if (sizeof(double) == sizeof(m_data.uint128))
887 return m_data.ieee_double;
889 case eTypeFloat: return m_data.ieee_float;
890 case eTypeDouble: return m_data.ieee_double;
892 case eTypeLongDouble:
893 if (sizeof(double) == sizeof(long double))
894 return m_data.ieee_double;
898 *success_ptr = false;
903 RegisterValue::GetAsLongDouble (long double fail_value, bool *success_ptr) const
913 if (sizeof(long double) == sizeof(m_data.uint32))
914 return m_data.ieee_long_double;
918 if (sizeof(long double) == sizeof(m_data.uint64))
919 return m_data.ieee_long_double;
922 #if defined (ENABLE_128_BIT_SUPPORT)
924 if (sizeof(long double) == sizeof(m_data.uint128))
925 return m_data.ieee_long_double;
927 case eTypeFloat: return m_data.ieee_float;
928 case eTypeDouble: return m_data.ieee_double;
929 case eTypeLongDouble: return m_data.ieee_long_double;
933 *success_ptr = false;
938 RegisterValue::GetBytes () const
942 case eTypeInvalid: break;
943 case eTypeUInt8: return &m_data.uint8;
944 case eTypeUInt16: return &m_data.uint16;
945 case eTypeUInt32: return &m_data.uint32;
946 case eTypeUInt64: return &m_data.uint64;
947 #if defined (ENABLE_128_BIT_SUPPORT)
948 case eTypeUInt128: return &m_data.uint128;
950 case eTypeFloat: return &m_data.ieee_float;
951 case eTypeDouble: return &m_data.ieee_double;
952 case eTypeLongDouble: return &m_data.ieee_long_double;
953 case eTypeBytes: return m_data.buffer.bytes;
959 RegisterValue::GetBytes ()
963 case eTypeInvalid: break;
964 case eTypeUInt8: return &m_data.uint8;
965 case eTypeUInt16: return &m_data.uint16;
966 case eTypeUInt32: return &m_data.uint32;
967 case eTypeUInt64: return &m_data.uint64;
968 #if defined (ENABLE_128_BIT_SUPPORT)
969 case eTypeUInt128: return &m_data.uint128;
971 case eTypeFloat: return &m_data.ieee_float;
972 case eTypeDouble: return &m_data.ieee_double;
973 case eTypeLongDouble: return &m_data.ieee_long_double;
974 case eTypeBytes: return m_data.buffer.bytes;
980 RegisterValue::GetByteSize () const
984 case eTypeInvalid: break;
985 case eTypeUInt8: return sizeof(m_data.uint8);
986 case eTypeUInt16: return sizeof(m_data.uint16);
987 case eTypeUInt32: return sizeof(m_data.uint32);
988 case eTypeUInt64: return sizeof(m_data.uint64);
989 #if defined (ENABLE_128_BIT_SUPPORT)
990 case eTypeUInt128: return sizeof(m_data.uint128);
992 case eTypeFloat: return sizeof(m_data.ieee_float);
993 case eTypeDouble: return sizeof(m_data.ieee_double);
994 case eTypeLongDouble: return sizeof(m_data.ieee_long_double);
995 case eTypeBytes: return m_data.buffer.length;
1002 RegisterValue::SetUInt (uint64_t uint, uint32_t byte_size)
1008 else if (byte_size == 1)
1012 else if (byte_size <= 2)
1016 else if (byte_size <= 4)
1020 else if (byte_size <= 8)
1024 #if defined (ENABLE_128_BIT_SUPPORT)
1025 else if (byte_size <= 16)
1036 RegisterValue::SetBytes (const void *bytes, size_t length, lldb::ByteOrder byte_order)
1038 // If this assertion fires off we need to increase the size of
1039 // m_data.buffer.bytes, or make it something that is allocated on
1040 // the heap. Since the data buffer is in a union, we can't make it
1041 // a collection class like SmallVector...
1042 if (bytes && length > 0)
1044 assert (length <= sizeof (m_data.buffer.bytes) && "Storing too many bytes in a RegisterValue.");
1045 m_type = eTypeBytes;
1046 m_data.buffer.length = length;
1047 memcpy (m_data.buffer.bytes, bytes, length);
1048 m_data.buffer.byte_order = byte_order;
1052 m_type = eTypeInvalid;
1053 m_data.buffer.length = 0;
1059 RegisterValue::operator == (const RegisterValue &rhs) const
1061 if (m_type == rhs.m_type)
1065 case eTypeInvalid: return true;
1066 case eTypeUInt8: return m_data.uint8 == rhs.m_data.uint8;
1067 case eTypeUInt16: return m_data.uint16 == rhs.m_data.uint16;
1068 case eTypeUInt32: return m_data.uint32 == rhs.m_data.uint32;
1069 case eTypeUInt64: return m_data.uint64 == rhs.m_data.uint64;
1070 #if defined (ENABLE_128_BIT_SUPPORT)
1071 case eTypeUInt128: return m_data.uint128 == rhs.m_data.uint128;
1073 case eTypeFloat: return m_data.ieee_float == rhs.m_data.ieee_float;
1074 case eTypeDouble: return m_data.ieee_double == rhs.m_data.ieee_double;
1075 case eTypeLongDouble: return m_data.ieee_long_double == rhs.m_data.ieee_long_double;
1077 if (m_data.buffer.length != rhs.m_data.buffer.length)
1081 uint8_t length = m_data.buffer.length;
1082 if (length > kMaxRegisterByteSize)
1083 length = kMaxRegisterByteSize;
1084 return memcmp (m_data.buffer.bytes, rhs.m_data.buffer.bytes, length) == 0;
1093 RegisterValue::operator != (const RegisterValue &rhs) const
1095 if (m_type != rhs.m_type)
1099 case eTypeInvalid: return false;
1100 case eTypeUInt8: return m_data.uint8 != rhs.m_data.uint8;
1101 case eTypeUInt16: return m_data.uint16 != rhs.m_data.uint16;
1102 case eTypeUInt32: return m_data.uint32 != rhs.m_data.uint32;
1103 case eTypeUInt64: return m_data.uint64 != rhs.m_data.uint64;
1104 #if defined (ENABLE_128_BIT_SUPPORT)
1105 case eTypeUInt128: return m_data.uint128 != rhs.m_data.uint128;
1107 case eTypeFloat: return m_data.ieee_float != rhs.m_data.ieee_float;
1108 case eTypeDouble: return m_data.ieee_double != rhs.m_data.ieee_double;
1109 case eTypeLongDouble: return m_data.ieee_long_double != rhs.m_data.ieee_long_double;
1111 if (m_data.buffer.length != rhs.m_data.buffer.length)
1117 uint8_t length = m_data.buffer.length;
1118 if (length > kMaxRegisterByteSize)
1119 length = kMaxRegisterByteSize;
1120 return memcmp (m_data.buffer.bytes, rhs.m_data.buffer.bytes, length) != 0;
1128 RegisterValue::ClearBit (uint32_t bit)
1138 m_data.uint8 &= ~(1u << bit);
1146 m_data.uint16 &= ~(1u << bit);
1154 m_data.uint32 &= ~(1u << bit);
1162 m_data.uint64 &= ~(1ull << (uint64_t)bit);
1166 #if defined (ENABLE_128_BIT_SUPPORT)
1170 m_data.uint128 &= ~((__uint128_t)1ull << (__uint128_t)bit);
1176 case eTypeLongDouble:
1180 if (m_data.buffer.byte_order == eByteOrderBig || m_data.buffer.byte_order == eByteOrderLittle)
1183 if (m_data.buffer.byte_order == eByteOrderBig)
1184 byte_idx = m_data.buffer.length - (bit / 8) - 1;
1188 const uint32_t byte_bit = bit % 8;
1189 if (byte_idx < m_data.buffer.length)
1191 m_data.buffer.bytes[byte_idx] &= ~(1u << byte_bit);
1202 RegisterValue::SetBit (uint32_t bit)
1212 m_data.uint8 |= (1u << bit);
1220 m_data.uint16 |= (1u << bit);
1228 m_data.uint32 |= (1u << bit);
1236 m_data.uint64 |= (1ull << (uint64_t)bit);
1240 #if defined (ENABLE_128_BIT_SUPPORT)
1244 m_data.uint128 |= ((__uint128_t)1ull << (__uint128_t)bit);
1250 case eTypeLongDouble:
1254 if (m_data.buffer.byte_order == eByteOrderBig || m_data.buffer.byte_order == eByteOrderLittle)
1257 if (m_data.buffer.byte_order == eByteOrderBig)
1258 byte_idx = m_data.buffer.length - (bit / 8) - 1;
1262 const uint32_t byte_bit = bit % 8;
1263 if (byte_idx < m_data.buffer.length)
1265 m_data.buffer.bytes[byte_idx] |= (1u << byte_bit);