1 //===-- DumpDataExtractor.cpp -----------------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "lldb/Core/DumpDataExtractor.h"
10 
11 #include "lldb/lldb-defines.h"
12 #include "lldb/lldb-forward.h"
13 
14 #include "lldb/Core/Address.h"
15 #include "lldb/Core/Disassembler.h"
16 #include "lldb/Core/ModuleList.h"
17 #include "lldb/Symbol/ClangASTContext.h"
18 #include "lldb/Target/ExecutionContext.h"
19 #include "lldb/Target/ExecutionContextScope.h"
20 #include "lldb/Target/SectionLoadList.h"
21 #include "lldb/Target/Target.h"
22 #include "lldb/Utility/DataExtractor.h"
23 #include "lldb/Utility/Log.h"
24 #include "lldb/Utility/Stream.h"
25 
26 #include "clang/AST/ASTContext.h"
27 #include "clang/AST/CanonicalType.h"
28 
29 #include "llvm/ADT/APFloat.h"
30 #include "llvm/ADT/APInt.h"
31 #include "llvm/ADT/ArrayRef.h"
32 #include "llvm/ADT/Optional.h"
33 #include "llvm/ADT/SmallVector.h"
34 
35 #include <limits>
36 #include <memory>
37 #include <string>
38 
39 #include <assert.h>
40 #include <ctype.h>
41 #include <inttypes.h>
42 #include <math.h>
43 
44 #include <bitset>
45 #include <sstream>
46 
47 using namespace lldb_private;
48 using namespace lldb;
49 
50 #define NON_PRINTABLE_CHAR '.'
51 
52 static float half2float(uint16_t half) {
53   union {
54     float f;
55     uint32_t u;
56   } u;
57   int32_t v = (int16_t)half;
58 
59   if (0 == (v & 0x7c00)) {
60     u.u = v & 0x80007FFFU;
61     return u.f * ldexpf(1, 125);
62   }
63 
64   v <<= 13;
65   u.u = v | 0x70000000U;
66   return u.f * ldexpf(1, -112);
67 }
68 
69 static llvm::Optional<llvm::APInt> GetAPInt(const DataExtractor &data,
70                                             lldb::offset_t *offset_ptr,
71                                             lldb::offset_t byte_size) {
72   llvm::SmallVector<uint64_t, 2> uint64_array;
73   lldb::offset_t bytes_left = byte_size;
74   uint64_t u64;
75   const lldb::ByteOrder byte_order = data.GetByteOrder();
76   if (byte_order == lldb::eByteOrderLittle) {
77     while (bytes_left > 0) {
78       if (bytes_left >= 8) {
79         u64 = data.GetU64(offset_ptr);
80         bytes_left -= 8;
81       } else {
82         u64 = data.GetMaxU64(offset_ptr, (uint32_t)bytes_left);
83         bytes_left = 0;
84       }
85       uint64_array.push_back(u64);
86     }
87     return llvm::APInt(byte_size * 8, llvm::ArrayRef<uint64_t>(uint64_array));
88   } else if (byte_order == lldb::eByteOrderBig) {
89     lldb::offset_t be_offset = *offset_ptr + byte_size;
90     lldb::offset_t temp_offset;
91     while (bytes_left > 0) {
92       if (bytes_left >= 8) {
93         be_offset -= 8;
94         temp_offset = be_offset;
95         u64 = data.GetU64(&temp_offset);
96         bytes_left -= 8;
97       } else {
98         be_offset -= bytes_left;
99         temp_offset = be_offset;
100         u64 = data.GetMaxU64(&temp_offset, (uint32_t)bytes_left);
101         bytes_left = 0;
102       }
103       uint64_array.push_back(u64);
104     }
105     *offset_ptr += byte_size;
106     return llvm::APInt(byte_size * 8, llvm::ArrayRef<uint64_t>(uint64_array));
107   }
108   return llvm::None;
109 }
110 
111 static lldb::offset_t DumpAPInt(Stream *s, const DataExtractor &data,
112                                 lldb::offset_t offset, lldb::offset_t byte_size,
113                                 bool is_signed, unsigned radix) {
114   llvm::Optional<llvm::APInt> apint = GetAPInt(data, &offset, byte_size);
115   if (apint.hasValue()) {
116     std::string apint_str(apint.getValue().toString(radix, is_signed));
117     switch (radix) {
118     case 2:
119       s->Write("0b", 2);
120       break;
121     case 8:
122       s->Write("0", 1);
123       break;
124     case 10:
125       break;
126     }
127     s->Write(apint_str.c_str(), apint_str.size());
128   }
129   return offset;
130 }
131 
132 lldb::offset_t lldb_private::DumpDataExtractor(
133     const DataExtractor &DE, Stream *s, offset_t start_offset,
134     lldb::Format item_format, size_t item_byte_size, size_t item_count,
135     size_t num_per_line, uint64_t base_addr,
136     uint32_t item_bit_size,   // If zero, this is not a bitfield value, if
137                               // non-zero, the value is a bitfield
138     uint32_t item_bit_offset, // If "item_bit_size" is non-zero, this is the
139                               // shift amount to apply to a bitfield
140     ExecutionContextScope *exe_scope) {
141   if (s == nullptr)
142     return start_offset;
143 
144   if (item_format == eFormatPointer) {
145     if (item_byte_size != 4 && item_byte_size != 8)
146       item_byte_size = s->GetAddressByteSize();
147   }
148 
149   offset_t offset = start_offset;
150 
151   if (item_format == eFormatInstruction) {
152     TargetSP target_sp;
153     if (exe_scope)
154       target_sp = exe_scope->CalculateTarget();
155     if (target_sp) {
156       DisassemblerSP disassembler_sp(Disassembler::FindPlugin(
157           target_sp->GetArchitecture(),
158           target_sp->GetDisassemblyFlavor(), nullptr));
159       if (disassembler_sp) {
160         lldb::addr_t addr = base_addr + start_offset;
161         lldb_private::Address so_addr;
162         bool data_from_file = true;
163         if (target_sp->GetSectionLoadList().ResolveLoadAddress(addr, so_addr)) {
164           data_from_file = false;
165         } else {
166           if (target_sp->GetSectionLoadList().IsEmpty() ||
167               !target_sp->GetImages().ResolveFileAddress(addr, so_addr))
168             so_addr.SetRawAddress(addr);
169         }
170 
171         size_t bytes_consumed = disassembler_sp->DecodeInstructions(
172             so_addr, DE, start_offset, item_count, false, data_from_file);
173 
174         if (bytes_consumed) {
175           offset += bytes_consumed;
176           const bool show_address = base_addr != LLDB_INVALID_ADDRESS;
177           const bool show_bytes = true;
178           ExecutionContext exe_ctx;
179           exe_scope->CalculateExecutionContext(exe_ctx);
180           disassembler_sp->GetInstructionList().Dump(s, show_address,
181                                                      show_bytes, &exe_ctx);
182         }
183       }
184     } else
185       s->Printf("invalid target");
186 
187     return offset;
188   }
189 
190   if ((item_format == eFormatOSType || item_format == eFormatAddressInfo) &&
191       item_byte_size > 8)
192     item_format = eFormatHex;
193 
194   lldb::offset_t line_start_offset = start_offset;
195   for (uint32_t count = 0; DE.ValidOffset(offset) && count < item_count;
196        ++count) {
197     if ((count % num_per_line) == 0) {
198       if (count > 0) {
199         if (item_format == eFormatBytesWithASCII &&
200             offset > line_start_offset) {
201           s->Printf("%*s",
202                     static_cast<int>(
203                         (num_per_line - (offset - line_start_offset)) * 3 + 2),
204                     "");
205           DumpDataExtractor(DE, s, line_start_offset, eFormatCharPrintable, 1,
206                             offset - line_start_offset, SIZE_MAX,
207                             LLDB_INVALID_ADDRESS, 0, 0);
208         }
209         s->EOL();
210       }
211       if (base_addr != LLDB_INVALID_ADDRESS)
212         s->Printf("0x%8.8" PRIx64 ": ",
213                   (uint64_t)(base_addr +
214                              (offset - start_offset) / DE.getTargetByteSize()));
215 
216       line_start_offset = offset;
217     } else if (item_format != eFormatChar &&
218                item_format != eFormatCharPrintable &&
219                item_format != eFormatCharArray && count > 0) {
220       s->PutChar(' ');
221     }
222 
223     switch (item_format) {
224     case eFormatBoolean:
225       if (item_byte_size <= 8)
226         s->Printf("%s", DE.GetMaxU64Bitfield(&offset, item_byte_size,
227                                              item_bit_size, item_bit_offset)
228                             ? "true"
229                             : "false");
230       else {
231         s->Printf("error: unsupported byte size (%" PRIu64
232                   ") for boolean format",
233                   (uint64_t)item_byte_size);
234         return offset;
235       }
236       break;
237 
238     case eFormatBinary:
239       if (item_byte_size <= 8) {
240         uint64_t uval64 = DE.GetMaxU64Bitfield(&offset, item_byte_size,
241                                                item_bit_size, item_bit_offset);
242         // Avoid std::bitset<64>::to_string() since it is missing in earlier
243         // C++ libraries
244         std::string binary_value(64, '0');
245         std::bitset<64> bits(uval64);
246         for (uint32_t i = 0; i < 64; ++i)
247           if (bits[i])
248             binary_value[64 - 1 - i] = '1';
249         if (item_bit_size > 0)
250           s->Printf("0b%s", binary_value.c_str() + 64 - item_bit_size);
251         else if (item_byte_size > 0 && item_byte_size <= 8)
252           s->Printf("0b%s", binary_value.c_str() + 64 - item_byte_size * 8);
253       } else {
254         const bool is_signed = false;
255         const unsigned radix = 2;
256         offset = DumpAPInt(s, DE, offset, item_byte_size, is_signed, radix);
257       }
258       break;
259 
260     case eFormatBytes:
261     case eFormatBytesWithASCII:
262       for (uint32_t i = 0; i < item_byte_size; ++i) {
263         s->Printf("%2.2x", DE.GetU8(&offset));
264       }
265 
266       // Put an extra space between the groups of bytes if more than one is
267       // being dumped in a group (item_byte_size is more than 1).
268       if (item_byte_size > 1)
269         s->PutChar(' ');
270       break;
271 
272     case eFormatChar:
273     case eFormatCharPrintable:
274     case eFormatCharArray: {
275       // Reject invalid item_byte_size.
276       if (item_byte_size > 8) {
277         s->Printf("error: unsupported byte size (%" PRIu64 ") for char format",
278                   (uint64_t)item_byte_size);
279         return offset;
280       }
281 
282       // If we are only printing one character surround it with single quotes
283       if (item_count == 1 && item_format == eFormatChar)
284         s->PutChar('\'');
285 
286       const uint64_t ch = DE.GetMaxU64Bitfield(&offset, item_byte_size,
287                                                item_bit_size, item_bit_offset);
288       if (isprint(ch))
289         s->Printf("%c", (char)ch);
290       else if (item_format != eFormatCharPrintable) {
291         switch (ch) {
292         case '\033':
293           s->Printf("\\e");
294           break;
295         case '\a':
296           s->Printf("\\a");
297           break;
298         case '\b':
299           s->Printf("\\b");
300           break;
301         case '\f':
302           s->Printf("\\f");
303           break;
304         case '\n':
305           s->Printf("\\n");
306           break;
307         case '\r':
308           s->Printf("\\r");
309           break;
310         case '\t':
311           s->Printf("\\t");
312           break;
313         case '\v':
314           s->Printf("\\v");
315           break;
316         case '\0':
317           s->Printf("\\0");
318           break;
319         default:
320           if (item_byte_size == 1)
321             s->Printf("\\x%2.2x", (uint8_t)ch);
322           else
323             s->Printf("%" PRIu64, ch);
324           break;
325         }
326       } else {
327         s->PutChar(NON_PRINTABLE_CHAR);
328       }
329 
330       // If we are only printing one character surround it with single quotes
331       if (item_count == 1 && item_format == eFormatChar)
332         s->PutChar('\'');
333     } break;
334 
335     case eFormatEnum: // Print enum value as a signed integer when we don't get
336                       // the enum type
337     case eFormatDecimal:
338       if (item_byte_size <= 8)
339         s->Printf("%" PRId64,
340                   DE.GetMaxS64Bitfield(&offset, item_byte_size, item_bit_size,
341                                        item_bit_offset));
342       else {
343         const bool is_signed = true;
344         const unsigned radix = 10;
345         offset = DumpAPInt(s, DE, offset, item_byte_size, is_signed, radix);
346       }
347       break;
348 
349     case eFormatUnsigned:
350       if (item_byte_size <= 8)
351         s->Printf("%" PRIu64,
352                   DE.GetMaxU64Bitfield(&offset, item_byte_size, item_bit_size,
353                                        item_bit_offset));
354       else {
355         const bool is_signed = false;
356         const unsigned radix = 10;
357         offset = DumpAPInt(s, DE, offset, item_byte_size, is_signed, radix);
358       }
359       break;
360 
361     case eFormatOctal:
362       if (item_byte_size <= 8)
363         s->Printf("0%" PRIo64,
364                   DE.GetMaxS64Bitfield(&offset, item_byte_size, item_bit_size,
365                                        item_bit_offset));
366       else {
367         const bool is_signed = false;
368         const unsigned radix = 8;
369         offset = DumpAPInt(s, DE, offset, item_byte_size, is_signed, radix);
370       }
371       break;
372 
373     case eFormatOSType: {
374       uint64_t uval64 = DE.GetMaxU64Bitfield(&offset, item_byte_size,
375                                              item_bit_size, item_bit_offset);
376       s->PutChar('\'');
377       for (uint32_t i = 0; i < item_byte_size; ++i) {
378         uint8_t ch = (uint8_t)(uval64 >> ((item_byte_size - i - 1) * 8));
379         if (isprint(ch))
380           s->Printf("%c", ch);
381         else {
382           switch (ch) {
383           case '\033':
384             s->Printf("\\e");
385             break;
386           case '\a':
387             s->Printf("\\a");
388             break;
389           case '\b':
390             s->Printf("\\b");
391             break;
392           case '\f':
393             s->Printf("\\f");
394             break;
395           case '\n':
396             s->Printf("\\n");
397             break;
398           case '\r':
399             s->Printf("\\r");
400             break;
401           case '\t':
402             s->Printf("\\t");
403             break;
404           case '\v':
405             s->Printf("\\v");
406             break;
407           case '\0':
408             s->Printf("\\0");
409             break;
410           default:
411             s->Printf("\\x%2.2x", ch);
412             break;
413           }
414         }
415       }
416       s->PutChar('\'');
417     } break;
418 
419     case eFormatCString: {
420       const char *cstr = DE.GetCStr(&offset);
421 
422       if (!cstr) {
423         s->Printf("NULL");
424         offset = LLDB_INVALID_OFFSET;
425       } else {
426         s->PutChar('\"');
427 
428         while (const char c = *cstr) {
429           if (isprint(c)) {
430             s->PutChar(c);
431           } else {
432             switch (c) {
433             case '\033':
434               s->Printf("\\e");
435               break;
436             case '\a':
437               s->Printf("\\a");
438               break;
439             case '\b':
440               s->Printf("\\b");
441               break;
442             case '\f':
443               s->Printf("\\f");
444               break;
445             case '\n':
446               s->Printf("\\n");
447               break;
448             case '\r':
449               s->Printf("\\r");
450               break;
451             case '\t':
452               s->Printf("\\t");
453               break;
454             case '\v':
455               s->Printf("\\v");
456               break;
457             default:
458               s->Printf("\\x%2.2x", c);
459               break;
460             }
461           }
462 
463           ++cstr;
464         }
465 
466         s->PutChar('\"');
467       }
468     } break;
469 
470     case eFormatPointer:
471       s->Address(DE.GetMaxU64Bitfield(&offset, item_byte_size, item_bit_size,
472                                       item_bit_offset),
473                  sizeof(addr_t));
474       break;
475 
476     case eFormatComplexInteger: {
477       size_t complex_int_byte_size = item_byte_size / 2;
478 
479       if (complex_int_byte_size > 0 && complex_int_byte_size <= 8) {
480         s->Printf("%" PRIu64,
481                   DE.GetMaxU64Bitfield(&offset, complex_int_byte_size, 0, 0));
482         s->Printf(" + %" PRIu64 "i",
483                   DE.GetMaxU64Bitfield(&offset, complex_int_byte_size, 0, 0));
484       } else {
485         s->Printf("error: unsupported byte size (%" PRIu64
486                   ") for complex integer format",
487                   (uint64_t)item_byte_size);
488         return offset;
489       }
490     } break;
491 
492     case eFormatComplex:
493       if (sizeof(float) * 2 == item_byte_size) {
494         float f32_1 = DE.GetFloat(&offset);
495         float f32_2 = DE.GetFloat(&offset);
496 
497         s->Printf("%g + %gi", f32_1, f32_2);
498         break;
499       } else if (sizeof(double) * 2 == item_byte_size) {
500         double d64_1 = DE.GetDouble(&offset);
501         double d64_2 = DE.GetDouble(&offset);
502 
503         s->Printf("%lg + %lgi", d64_1, d64_2);
504         break;
505       } else if (sizeof(long double) * 2 == item_byte_size) {
506         long double ld64_1 = DE.GetLongDouble(&offset);
507         long double ld64_2 = DE.GetLongDouble(&offset);
508         s->Printf("%Lg + %Lgi", ld64_1, ld64_2);
509         break;
510       } else {
511         s->Printf("error: unsupported byte size (%" PRIu64
512                   ") for complex float format",
513                   (uint64_t)item_byte_size);
514         return offset;
515       }
516       break;
517 
518     default:
519     case eFormatDefault:
520     case eFormatHex:
521     case eFormatHexUppercase: {
522       bool wantsuppercase = (item_format == eFormatHexUppercase);
523       switch (item_byte_size) {
524       case 1:
525       case 2:
526       case 4:
527       case 8:
528         s->Printf(wantsuppercase ? "0x%*.*" PRIX64 : "0x%*.*" PRIx64,
529                   (int)(2 * item_byte_size), (int)(2 * item_byte_size),
530                   DE.GetMaxU64Bitfield(&offset, item_byte_size, item_bit_size,
531                                        item_bit_offset));
532         break;
533       default: {
534         assert(item_bit_size == 0 && item_bit_offset == 0);
535         const uint8_t *bytes =
536             (const uint8_t *)DE.GetData(&offset, item_byte_size);
537         if (bytes) {
538           s->PutCString("0x");
539           uint32_t idx;
540           if (DE.GetByteOrder() == eByteOrderBig) {
541             for (idx = 0; idx < item_byte_size; ++idx)
542               s->Printf(wantsuppercase ? "%2.2X" : "%2.2x", bytes[idx]);
543           } else {
544             for (idx = 0; idx < item_byte_size; ++idx)
545               s->Printf(wantsuppercase ? "%2.2X" : "%2.2x",
546                         bytes[item_byte_size - 1 - idx]);
547           }
548         }
549       } break;
550       }
551     } break;
552 
553     case eFormatFloat: {
554       TargetSP target_sp;
555       bool used_upfloat = false;
556       if (exe_scope)
557         target_sp = exe_scope->CalculateTarget();
558       if (target_sp) {
559         ClangASTContext *clang_ast = target_sp->GetScratchClangASTContext();
560         if (clang_ast) {
561           clang::ASTContext *ast = clang_ast->getASTContext();
562           if (ast) {
563             llvm::SmallVector<char, 256> sv;
564             // Show full precision when printing float values
565             const unsigned format_precision = 0;
566             const unsigned format_max_padding = 100;
567             size_t item_bit_size = item_byte_size * 8;
568 
569             if (item_bit_size == ast->getTypeSize(ast->FloatTy)) {
570               llvm::APInt apint(item_bit_size,
571                                 DE.GetMaxU64(&offset, item_byte_size));
572               llvm::APFloat apfloat(ast->getFloatTypeSemantics(ast->FloatTy),
573                                     apint);
574               apfloat.toString(sv, format_precision, format_max_padding);
575             } else if (item_bit_size == ast->getTypeSize(ast->DoubleTy)) {
576               llvm::Optional<llvm::APInt> apint =
577                   GetAPInt(DE, &offset, item_byte_size);
578               if (apint.hasValue()) {
579                 llvm::APFloat apfloat(ast->getFloatTypeSemantics(ast->DoubleTy),
580                                       apint.getValue());
581                 apfloat.toString(sv, format_precision, format_max_padding);
582               }
583             } else if (item_bit_size == ast->getTypeSize(ast->LongDoubleTy)) {
584               const auto &semantics =
585                   ast->getFloatTypeSemantics(ast->LongDoubleTy);
586 
587               offset_t byte_size = item_byte_size;
588               if (&semantics == &llvm::APFloatBase::x87DoubleExtended())
589                 byte_size = (llvm::APFloat::getSizeInBits(semantics) + 7) / 8;
590 
591               llvm::Optional<llvm::APInt> apint =
592                   GetAPInt(DE, &offset, byte_size);
593               if (apint.hasValue()) {
594                 llvm::APFloat apfloat(semantics, apint.getValue());
595                 apfloat.toString(sv, format_precision, format_max_padding);
596               }
597             } else if (item_bit_size == ast->getTypeSize(ast->HalfTy)) {
598               llvm::APInt apint(item_bit_size, DE.GetU16(&offset));
599               llvm::APFloat apfloat(ast->getFloatTypeSemantics(ast->HalfTy),
600                                     apint);
601               apfloat.toString(sv, format_precision, format_max_padding);
602             }
603 
604             if (!sv.empty()) {
605               s->Printf("%*.*s", (int)sv.size(), (int)sv.size(), sv.data());
606               used_upfloat = true;
607             }
608           }
609         }
610       }
611 
612       if (!used_upfloat) {
613         std::ostringstream ss;
614         if (item_byte_size == sizeof(float) || item_byte_size == 2) {
615           float f;
616           if (item_byte_size == 2) {
617             uint16_t half = DE.GetU16(&offset);
618             f = half2float(half);
619           } else {
620             f = DE.GetFloat(&offset);
621           }
622           ss.precision(std::numeric_limits<float>::digits10);
623           ss << f;
624         } else if (item_byte_size == sizeof(double)) {
625           ss.precision(std::numeric_limits<double>::digits10);
626           ss << DE.GetDouble(&offset);
627         } else if (item_byte_size == sizeof(long double) ||
628                    item_byte_size == 10) {
629           ss.precision(std::numeric_limits<long double>::digits10);
630           ss << DE.GetLongDouble(&offset);
631         } else {
632           s->Printf("error: unsupported byte size (%" PRIu64
633                     ") for float format",
634                     (uint64_t)item_byte_size);
635           return offset;
636         }
637         ss.flush();
638         s->Printf("%s", ss.str().c_str());
639       }
640     } break;
641 
642     case eFormatUnicode16:
643       s->Printf("U+%4.4x", DE.GetU16(&offset));
644       break;
645 
646     case eFormatUnicode32:
647       s->Printf("U+0x%8.8x", DE.GetU32(&offset));
648       break;
649 
650     case eFormatAddressInfo: {
651       addr_t addr = DE.GetMaxU64Bitfield(&offset, item_byte_size, item_bit_size,
652                                          item_bit_offset);
653       s->Printf("0x%*.*" PRIx64, (int)(2 * item_byte_size),
654                 (int)(2 * item_byte_size), addr);
655       if (exe_scope) {
656         TargetSP target_sp(exe_scope->CalculateTarget());
657         lldb_private::Address so_addr;
658         if (target_sp) {
659           if (target_sp->GetSectionLoadList().ResolveLoadAddress(addr,
660                                                                  so_addr)) {
661             s->PutChar(' ');
662             so_addr.Dump(s, exe_scope, Address::DumpStyleResolvedDescription,
663                          Address::DumpStyleModuleWithFileAddress);
664           } else {
665             so_addr.SetOffset(addr);
666             so_addr.Dump(s, exe_scope,
667                          Address::DumpStyleResolvedPointerDescription);
668           }
669         }
670       }
671     } break;
672 
673     case eFormatHexFloat:
674       if (sizeof(float) == item_byte_size) {
675         char float_cstr[256];
676         llvm::APFloat ap_float(DE.GetFloat(&offset));
677         ap_float.convertToHexString(float_cstr, 0, false,
678                                     llvm::APFloat::rmNearestTiesToEven);
679         s->Printf("%s", float_cstr);
680         break;
681       } else if (sizeof(double) == item_byte_size) {
682         char float_cstr[256];
683         llvm::APFloat ap_float(DE.GetDouble(&offset));
684         ap_float.convertToHexString(float_cstr, 0, false,
685                                     llvm::APFloat::rmNearestTiesToEven);
686         s->Printf("%s", float_cstr);
687         break;
688       } else {
689         s->Printf("error: unsupported byte size (%" PRIu64
690                   ") for hex float format",
691                   (uint64_t)item_byte_size);
692         return offset;
693       }
694       break;
695 
696     // please keep the single-item formats below in sync with
697     // FormatManager::GetSingleItemFormat if you fail to do so, users will
698     // start getting different outputs depending on internal implementation
699     // details they should not care about ||
700     case eFormatVectorOfChar: //   ||
701       s->PutChar('{');        //   \/
702       offset =
703           DumpDataExtractor(DE, s, offset, eFormatCharArray, 1, item_byte_size,
704                             item_byte_size, LLDB_INVALID_ADDRESS, 0, 0);
705       s->PutChar('}');
706       break;
707 
708     case eFormatVectorOfSInt8:
709       s->PutChar('{');
710       offset =
711           DumpDataExtractor(DE, s, offset, eFormatDecimal, 1, item_byte_size,
712                             item_byte_size, LLDB_INVALID_ADDRESS, 0, 0);
713       s->PutChar('}');
714       break;
715 
716     case eFormatVectorOfUInt8:
717       s->PutChar('{');
718       offset = DumpDataExtractor(DE, s, offset, eFormatHex, 1, item_byte_size,
719                                  item_byte_size, LLDB_INVALID_ADDRESS, 0, 0);
720       s->PutChar('}');
721       break;
722 
723     case eFormatVectorOfSInt16:
724       s->PutChar('{');
725       offset = DumpDataExtractor(
726           DE, s, offset, eFormatDecimal, sizeof(uint16_t),
727           item_byte_size / sizeof(uint16_t), item_byte_size / sizeof(uint16_t),
728           LLDB_INVALID_ADDRESS, 0, 0);
729       s->PutChar('}');
730       break;
731 
732     case eFormatVectorOfUInt16:
733       s->PutChar('{');
734       offset = DumpDataExtractor(DE, s, offset, eFormatHex, sizeof(uint16_t),
735                                  item_byte_size / sizeof(uint16_t),
736                                  item_byte_size / sizeof(uint16_t),
737                                  LLDB_INVALID_ADDRESS, 0, 0);
738       s->PutChar('}');
739       break;
740 
741     case eFormatVectorOfSInt32:
742       s->PutChar('{');
743       offset = DumpDataExtractor(
744           DE, s, offset, eFormatDecimal, sizeof(uint32_t),
745           item_byte_size / sizeof(uint32_t), item_byte_size / sizeof(uint32_t),
746           LLDB_INVALID_ADDRESS, 0, 0);
747       s->PutChar('}');
748       break;
749 
750     case eFormatVectorOfUInt32:
751       s->PutChar('{');
752       offset = DumpDataExtractor(DE, s, offset, eFormatHex, sizeof(uint32_t),
753                                  item_byte_size / sizeof(uint32_t),
754                                  item_byte_size / sizeof(uint32_t),
755                                  LLDB_INVALID_ADDRESS, 0, 0);
756       s->PutChar('}');
757       break;
758 
759     case eFormatVectorOfSInt64:
760       s->PutChar('{');
761       offset = DumpDataExtractor(
762           DE, s, offset, eFormatDecimal, sizeof(uint64_t),
763           item_byte_size / sizeof(uint64_t), item_byte_size / sizeof(uint64_t),
764           LLDB_INVALID_ADDRESS, 0, 0);
765       s->PutChar('}');
766       break;
767 
768     case eFormatVectorOfUInt64:
769       s->PutChar('{');
770       offset = DumpDataExtractor(DE, s, offset, eFormatHex, sizeof(uint64_t),
771                                  item_byte_size / sizeof(uint64_t),
772                                  item_byte_size / sizeof(uint64_t),
773                                  LLDB_INVALID_ADDRESS, 0, 0);
774       s->PutChar('}');
775       break;
776 
777     case eFormatVectorOfFloat16:
778       s->PutChar('{');
779       offset =
780           DumpDataExtractor(DE, s, offset, eFormatFloat, 2, item_byte_size / 2,
781                             item_byte_size / 2, LLDB_INVALID_ADDRESS, 0, 0);
782       s->PutChar('}');
783       break;
784 
785     case eFormatVectorOfFloat32:
786       s->PutChar('{');
787       offset =
788           DumpDataExtractor(DE, s, offset, eFormatFloat, 4, item_byte_size / 4,
789                             item_byte_size / 4, LLDB_INVALID_ADDRESS, 0, 0);
790       s->PutChar('}');
791       break;
792 
793     case eFormatVectorOfFloat64:
794       s->PutChar('{');
795       offset =
796           DumpDataExtractor(DE, s, offset, eFormatFloat, 8, item_byte_size / 8,
797                             item_byte_size / 8, LLDB_INVALID_ADDRESS, 0, 0);
798       s->PutChar('}');
799       break;
800 
801     case eFormatVectorOfUInt128:
802       s->PutChar('{');
803       offset =
804           DumpDataExtractor(DE, s, offset, eFormatHex, 16, item_byte_size / 16,
805                             item_byte_size / 16, LLDB_INVALID_ADDRESS, 0, 0);
806       s->PutChar('}');
807       break;
808     }
809   }
810 
811   if (item_format == eFormatBytesWithASCII && offset > line_start_offset) {
812     s->Printf("%*s", static_cast<int>(
813                          (num_per_line - (offset - line_start_offset)) * 3 + 2),
814               "");
815     DumpDataExtractor(DE, s, line_start_offset, eFormatCharPrintable, 1,
816                       offset - line_start_offset, SIZE_MAX,
817                       LLDB_INVALID_ADDRESS, 0, 0);
818   }
819   return offset; // Return the offset at which we ended up
820 }
821 
822 void lldb_private::DumpHexBytes(Stream *s, const void *src, size_t src_len,
823                                 uint32_t bytes_per_line,
824                                 lldb::addr_t base_addr) {
825   DataExtractor data(src, src_len, lldb::eByteOrderLittle, 4);
826   DumpDataExtractor(data, s,
827                     0,                  // Offset into "src"
828                     lldb::eFormatBytes, // Dump as hex bytes
829                     1,              // Size of each item is 1 for single bytes
830                     src_len,        // Number of bytes
831                     bytes_per_line, // Num bytes per line
832                     base_addr,      // Base address
833                     0, 0);          // Bitfield info
834 }
835