1 //===-- DynamicRegisterInfo.cpp ----------------------------*- C++ -*-===//
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
7 //===----------------------------------------------------------------------===//
9 #include "DynamicRegisterInfo.h"
11 #include "lldb/Core/StreamFile.h"
12 #include "lldb/DataFormatters/FormatManager.h"
13 #include "lldb/Host/StringConvert.h"
14 #include "lldb/Interpreter/OptionArgParser.h"
15 #include "lldb/Utility/ArchSpec.h"
16 #include "lldb/Utility/RegularExpression.h"
17 #include "lldb/Utility/StringExtractor.h"
18 #include "lldb/Utility/StructuredData.h"
21 using namespace lldb_private;
23 DynamicRegisterInfo::DynamicRegisterInfo(
24 const lldb_private::StructuredData::Dictionary &dict,
25 const lldb_private::ArchSpec &arch) {
26 SetRegisterInfo(dict, arch);
29 DynamicRegisterInfo::DynamicRegisterInfo(DynamicRegisterInfo &&info) {
30 MoveFrom(std::move(info));
34 DynamicRegisterInfo::operator=(DynamicRegisterInfo &&info) {
35 MoveFrom(std::move(info));
39 void DynamicRegisterInfo::MoveFrom(DynamicRegisterInfo &&info) {
40 m_regs = std::move(info.m_regs);
41 m_sets = std::move(info.m_sets);
42 m_set_reg_nums = std::move(info.m_set_reg_nums);
43 m_set_names = std::move(info.m_set_names);
44 m_value_regs_map = std::move(info.m_value_regs_map);
45 m_invalidate_regs_map = std::move(info.m_invalidate_regs_map);
46 m_dynamic_reg_size_map = std::move(info.m_dynamic_reg_size_map);
48 m_reg_data_byte_size = info.m_reg_data_byte_size;
49 m_finalized = info.m_finalized;
52 const size_t num_sets = m_sets.size();
53 for (size_t set = 0; set < num_sets; ++set)
54 m_sets[set].registers = m_set_reg_nums[set].data();
61 DynamicRegisterInfo::SetRegisterInfo(const StructuredData::Dictionary &dict,
62 const ArchSpec &arch) {
64 StructuredData::Array *sets = nullptr;
65 if (dict.GetValueForKeyAsArray("sets", sets)) {
66 const uint32_t num_sets = sets->GetSize();
67 for (uint32_t i = 0; i < num_sets; ++i) {
69 if (sets->GetItemAtIndexAsString(i, set_name) && !set_name.IsEmpty()) {
70 m_sets.push_back({set_name.AsCString(), nullptr, 0, nullptr});
73 printf("error: register sets must have valid names\n");
77 m_set_reg_nums.resize(m_sets.size());
80 StructuredData::Array *regs = nullptr;
81 if (!dict.GetValueForKeyAsArray("registers", regs))
84 const uint32_t num_regs = regs->GetSize();
85 // typedef std::map<std::string, std::vector<std::string> >
87 // InvalidateNameMap invalidate_map;
88 for (uint32_t i = 0; i < num_regs; ++i) {
89 StructuredData::Dictionary *reg_info_dict = nullptr;
90 if (!regs->GetItemAtIndexAsDictionary(i, reg_info_dict)) {
92 printf("error: items in the 'registers' array must be dictionaries\n");
97 // { 'name':'rcx' , 'bitsize' : 64, 'offset' : 16,
98 // 'encoding':'uint' , 'format':'hex' , 'set': 0, 'ehframe' : 2,
99 // 'dwarf' : 2, 'generic':'arg4', 'alt-name':'arg4', },
100 RegisterInfo reg_info;
101 std::vector<uint32_t> value_regs;
102 std::vector<uint32_t> invalidate_regs;
103 memset(®_info, 0, sizeof(reg_info));
105 ConstString name_val;
106 ConstString alt_name_val;
107 if (!reg_info_dict->GetValueForKeyAsString("name", name_val, nullptr)) {
109 printf("error: registers must have valid names and offsets\n");
110 reg_info_dict->DumpToStdout();
113 reg_info.name = name_val.GetCString();
114 reg_info_dict->GetValueForKeyAsString("alt-name", alt_name_val, nullptr);
115 reg_info.alt_name = alt_name_val.GetCString();
117 reg_info_dict->GetValueForKeyAsInteger("offset", reg_info.byte_offset,
120 const ByteOrder byte_order = arch.GetByteOrder();
122 if (reg_info.byte_offset == UINT32_MAX) {
123 // No offset for this register, see if the register has a value
124 // expression which indicates this register is part of another register.
125 // Value expressions are things like "rax[31:0]" which state that the
126 // current register's value is in a concrete register "rax" in bits 31:0.
127 // If there is a value expression we can calculate the offset
128 bool success = false;
129 llvm::StringRef slice_str;
130 if (reg_info_dict->GetValueForKeyAsString("slice", slice_str, nullptr)) {
131 // Slices use the following format:
132 // REGNAME[MSBIT:LSBIT]
133 // REGNAME - name of the register to grab a slice of
134 // MSBIT - the most significant bit at which the current register value
136 // LSBIT - the least significant bit at which the current register value
138 static RegularExpression g_bitfield_regex(
139 llvm::StringRef("([A-Za-z_][A-Za-z0-9_]*)\\[([0-9]+):([0-9]+)\\]"));
140 RegularExpression::Match regex_match(3);
141 if (g_bitfield_regex.Execute(slice_str, ®ex_match)) {
142 llvm::StringRef reg_name_str;
143 std::string msbit_str;
144 std::string lsbit_str;
145 if (regex_match.GetMatchAtIndex(slice_str, 1, reg_name_str) &&
146 regex_match.GetMatchAtIndex(slice_str, 2, msbit_str) &&
147 regex_match.GetMatchAtIndex(slice_str, 3, lsbit_str)) {
148 const uint32_t msbit =
149 StringConvert::ToUInt32(msbit_str.c_str(), UINT32_MAX);
150 const uint32_t lsbit =
151 StringConvert::ToUInt32(lsbit_str.c_str(), UINT32_MAX);
152 if (msbit != UINT32_MAX && lsbit != UINT32_MAX) {
154 const uint32_t msbyte = msbit / 8;
155 const uint32_t lsbyte = lsbit / 8;
157 ConstString containing_reg_name(reg_name_str);
159 const RegisterInfo *containing_reg_info =
160 GetRegisterInfo(containing_reg_name);
161 if (containing_reg_info) {
162 const uint32_t max_bit = containing_reg_info->byte_size * 8;
163 if (msbit < max_bit && lsbit < max_bit) {
164 m_invalidate_regs_map[containing_reg_info
165 ->kinds[eRegisterKindLLDB]]
167 m_value_regs_map[i].push_back(
168 containing_reg_info->kinds[eRegisterKindLLDB]);
169 m_invalidate_regs_map[i].push_back(
170 containing_reg_info->kinds[eRegisterKindLLDB]);
172 if (byte_order == eByteOrderLittle) {
174 reg_info.byte_offset =
175 containing_reg_info->byte_offset + lsbyte;
176 } else if (byte_order == eByteOrderBig) {
178 reg_info.byte_offset =
179 containing_reg_info->byte_offset + msbyte;
181 llvm_unreachable("Invalid byte order");
185 printf("error: msbit (%u) must be less than the bitsize "
186 "of the register (%u)\n",
189 printf("error: lsbit (%u) must be less than the bitsize "
190 "of the register (%u)\n",
194 printf("error: invalid concrete register \"%s\"\n",
195 containing_reg_name.GetCString());
198 printf("error: msbit (%u) must be greater than lsbit (%u)\n",
202 printf("error: msbit (%u) and lsbit (%u) must be valid\n", msbit,
206 // TODO: print error invalid slice string that doesn't follow the
208 printf("error: failed to extract regex matches for parsing the "
209 "register bitfield regex\n");
212 // TODO: print error invalid slice string that doesn't follow the
214 printf("error: failed to match against register bitfield regex\n");
217 StructuredData::Array *composite_reg_list = nullptr;
218 if (reg_info_dict->GetValueForKeyAsArray("composite",
219 composite_reg_list)) {
220 const size_t num_composite_regs = composite_reg_list->GetSize();
221 if (num_composite_regs > 0) {
222 uint32_t composite_offset = UINT32_MAX;
223 for (uint32_t composite_idx = 0; composite_idx < num_composite_regs;
225 ConstString composite_reg_name;
226 if (composite_reg_list->GetItemAtIndexAsString(
227 composite_idx, composite_reg_name, nullptr)) {
228 const RegisterInfo *composite_reg_info =
229 GetRegisterInfo(composite_reg_name);
230 if (composite_reg_info) {
231 composite_offset = std::min(composite_offset,
232 composite_reg_info->byte_offset);
233 m_value_regs_map[i].push_back(
234 composite_reg_info->kinds[eRegisterKindLLDB]);
235 m_invalidate_regs_map[composite_reg_info
236 ->kinds[eRegisterKindLLDB]]
238 m_invalidate_regs_map[i].push_back(
239 composite_reg_info->kinds[eRegisterKindLLDB]);
241 // TODO: print error invalid slice string that doesn't follow
243 printf("error: failed to find composite register by name: "
245 composite_reg_name.GetCString());
249 "error: 'composite' list value wasn't a python string\n");
252 if (composite_offset != UINT32_MAX) {
253 reg_info.byte_offset = composite_offset;
254 success = m_value_regs_map.find(i) != m_value_regs_map.end();
256 printf("error: 'composite' registers must specify at least one "
260 printf("error: 'composite' list was empty\n");
267 reg_info_dict->DumpToStdout();
273 if (!reg_info_dict->GetValueForKeyAsInteger("bitsize", bitsize)) {
275 printf("error: invalid or missing 'bitsize' key/value pair in register "
277 reg_info_dict->DumpToStdout();
281 reg_info.byte_size = bitsize / 8;
283 llvm::StringRef dwarf_opcode_string;
284 if (reg_info_dict->GetValueForKeyAsString("dynamic_size_dwarf_expr_bytes",
285 dwarf_opcode_string)) {
286 reg_info.dynamic_size_dwarf_len = dwarf_opcode_string.size() / 2;
287 assert(reg_info.dynamic_size_dwarf_len > 0);
289 std::vector<uint8_t> dwarf_opcode_bytes(reg_info.dynamic_size_dwarf_len);
291 StringExtractor opcode_extractor(dwarf_opcode_string);
292 uint32_t ret_val = opcode_extractor.GetHexBytesAvail(dwarf_opcode_bytes);
293 UNUSED_IF_ASSERT_DISABLED(ret_val);
294 assert(ret_val == reg_info.dynamic_size_dwarf_len);
296 for (j = 0; j < reg_info.dynamic_size_dwarf_len; ++j)
297 m_dynamic_reg_size_map[i].push_back(dwarf_opcode_bytes[j]);
299 reg_info.dynamic_size_dwarf_expr_bytes = m_dynamic_reg_size_map[i].data();
302 llvm::StringRef format_str;
303 if (reg_info_dict->GetValueForKeyAsString("format", format_str, nullptr)) {
304 if (OptionArgParser::ToFormat(format_str.str().c_str(), reg_info.format,
308 printf("error: invalid 'format' value in register dictionary\n");
309 reg_info_dict->DumpToStdout();
313 reg_info_dict->GetValueForKeyAsInteger("format", reg_info.format,
317 llvm::StringRef encoding_str;
318 if (reg_info_dict->GetValueForKeyAsString("encoding", encoding_str))
319 reg_info.encoding = Args::StringToEncoding(encoding_str, eEncodingUint);
321 reg_info_dict->GetValueForKeyAsInteger("encoding", reg_info.encoding,
325 if (!reg_info_dict->GetValueForKeyAsInteger<size_t>("set", set, -1) ||
326 set >= m_sets.size()) {
328 printf("error: invalid 'set' value in register dictionary, valid values "
331 reg_info_dict->DumpToStdout();
335 // Fill in the register numbers
336 reg_info.kinds[lldb::eRegisterKindLLDB] = i;
337 reg_info.kinds[lldb::eRegisterKindProcessPlugin] = i;
338 uint32_t eh_frame_regno = LLDB_INVALID_REGNUM;
339 reg_info_dict->GetValueForKeyAsInteger("gcc", eh_frame_regno,
340 LLDB_INVALID_REGNUM);
341 if (eh_frame_regno == LLDB_INVALID_REGNUM)
342 reg_info_dict->GetValueForKeyAsInteger("ehframe", eh_frame_regno,
343 LLDB_INVALID_REGNUM);
344 reg_info.kinds[lldb::eRegisterKindEHFrame] = eh_frame_regno;
345 reg_info_dict->GetValueForKeyAsInteger(
346 "dwarf", reg_info.kinds[lldb::eRegisterKindDWARF], LLDB_INVALID_REGNUM);
347 llvm::StringRef generic_str;
348 if (reg_info_dict->GetValueForKeyAsString("generic", generic_str))
349 reg_info.kinds[lldb::eRegisterKindGeneric] =
350 Args::StringToGenericRegister(generic_str);
352 reg_info_dict->GetValueForKeyAsInteger(
353 "generic", reg_info.kinds[lldb::eRegisterKindGeneric],
354 LLDB_INVALID_REGNUM);
356 // Check if this register invalidates any other register values when it is
358 StructuredData::Array *invalidate_reg_list = nullptr;
359 if (reg_info_dict->GetValueForKeyAsArray("invalidate-regs",
360 invalidate_reg_list)) {
361 const size_t num_regs = invalidate_reg_list->GetSize();
363 for (uint32_t idx = 0; idx < num_regs; ++idx) {
364 ConstString invalidate_reg_name;
365 uint64_t invalidate_reg_num;
366 if (invalidate_reg_list->GetItemAtIndexAsString(
367 idx, invalidate_reg_name)) {
368 const RegisterInfo *invalidate_reg_info =
369 GetRegisterInfo(invalidate_reg_name);
370 if (invalidate_reg_info) {
371 m_invalidate_regs_map[i].push_back(
372 invalidate_reg_info->kinds[eRegisterKindLLDB]);
374 // TODO: print error invalid slice string that doesn't follow the
376 printf("error: failed to find a 'invalidate-regs' register for "
377 "\"%s\" while parsing register \"%s\"\n",
378 invalidate_reg_name.GetCString(), reg_info.name);
380 } else if (invalidate_reg_list->GetItemAtIndexAsInteger(
381 idx, invalidate_reg_num)) {
382 if (invalidate_reg_num != UINT64_MAX)
383 m_invalidate_regs_map[i].push_back(invalidate_reg_num);
385 printf("error: 'invalidate-regs' list value wasn't a valid "
388 printf("error: 'invalidate-regs' list value wasn't a python string "
393 printf("error: 'invalidate-regs' contained an empty list\n");
397 // Calculate the register offset
398 const size_t end_reg_offset = reg_info.byte_offset + reg_info.byte_size;
399 if (m_reg_data_byte_size < end_reg_offset)
400 m_reg_data_byte_size = end_reg_offset;
402 m_regs.push_back(reg_info);
403 m_set_reg_nums[set].push_back(i);
406 return m_regs.size();
409 void DynamicRegisterInfo::AddRegister(RegisterInfo ®_info,
410 ConstString ®_name,
411 ConstString ®_alt_name,
412 ConstString &set_name) {
413 assert(!m_finalized);
414 const uint32_t reg_num = m_regs.size();
415 reg_info.name = reg_name.AsCString();
416 assert(reg_info.name);
417 reg_info.alt_name = reg_alt_name.AsCString(nullptr);
419 if (reg_info.value_regs) {
420 for (i = 0; reg_info.value_regs[i] != LLDB_INVALID_REGNUM; ++i)
421 m_value_regs_map[reg_num].push_back(reg_info.value_regs[i]);
423 if (reg_info.invalidate_regs) {
424 for (i = 0; reg_info.invalidate_regs[i] != LLDB_INVALID_REGNUM; ++i)
425 m_invalidate_regs_map[reg_num].push_back(reg_info.invalidate_regs[i]);
427 if (reg_info.dynamic_size_dwarf_expr_bytes) {
428 for (i = 0; i < reg_info.dynamic_size_dwarf_len; ++i)
429 m_dynamic_reg_size_map[reg_num].push_back(
430 reg_info.dynamic_size_dwarf_expr_bytes[i]);
432 reg_info.dynamic_size_dwarf_expr_bytes =
433 m_dynamic_reg_size_map[reg_num].data();
436 m_regs.push_back(reg_info);
437 uint32_t set = GetRegisterSetIndexByName(set_name, true);
438 assert(set < m_sets.size());
439 assert(set < m_set_reg_nums.size());
440 assert(set < m_set_names.size());
441 m_set_reg_nums[set].push_back(reg_num);
442 size_t end_reg_offset = reg_info.byte_offset + reg_info.byte_size;
443 if (m_reg_data_byte_size < end_reg_offset)
444 m_reg_data_byte_size = end_reg_offset;
447 void DynamicRegisterInfo::Finalize(const ArchSpec &arch) {
452 const size_t num_sets = m_sets.size();
453 for (size_t set = 0; set < num_sets; ++set) {
454 assert(m_sets.size() == m_set_reg_nums.size());
455 m_sets[set].num_registers = m_set_reg_nums[set].size();
456 m_sets[set].registers = m_set_reg_nums[set].data();
459 // sort and unique all value registers and make sure each is terminated with
460 // LLDB_INVALID_REGNUM
462 for (reg_to_regs_map::iterator pos = m_value_regs_map.begin(),
463 end = m_value_regs_map.end();
465 if (pos->second.size() > 1) {
466 llvm::sort(pos->second.begin(), pos->second.end());
467 reg_num_collection::iterator unique_end =
468 std::unique(pos->second.begin(), pos->second.end());
469 if (unique_end != pos->second.end())
470 pos->second.erase(unique_end, pos->second.end());
472 assert(!pos->second.empty());
473 if (pos->second.back() != LLDB_INVALID_REGNUM)
474 pos->second.push_back(LLDB_INVALID_REGNUM);
477 // Now update all value_regs with each register info as needed
478 const size_t num_regs = m_regs.size();
479 for (size_t i = 0; i < num_regs; ++i) {
480 if (m_value_regs_map.find(i) != m_value_regs_map.end())
481 m_regs[i].value_regs = m_value_regs_map[i].data();
483 m_regs[i].value_regs = nullptr;
486 // Expand all invalidation dependencies
487 for (reg_to_regs_map::iterator pos = m_invalidate_regs_map.begin(),
488 end = m_invalidate_regs_map.end();
490 const uint32_t reg_num = pos->first;
492 if (m_regs[reg_num].value_regs) {
493 reg_num_collection extra_invalid_regs;
494 for (const uint32_t invalidate_reg_num : pos->second) {
495 reg_to_regs_map::iterator invalidate_pos =
496 m_invalidate_regs_map.find(invalidate_reg_num);
497 if (invalidate_pos != m_invalidate_regs_map.end()) {
498 for (const uint32_t concrete_invalidate_reg_num :
499 invalidate_pos->second) {
500 if (concrete_invalidate_reg_num != reg_num)
501 extra_invalid_regs.push_back(concrete_invalidate_reg_num);
505 pos->second.insert(pos->second.end(), extra_invalid_regs.begin(),
506 extra_invalid_regs.end());
510 // sort and unique all invalidate registers and make sure each is terminated
511 // with LLDB_INVALID_REGNUM
512 for (reg_to_regs_map::iterator pos = m_invalidate_regs_map.begin(),
513 end = m_invalidate_regs_map.end();
515 if (pos->second.size() > 1) {
516 llvm::sort(pos->second.begin(), pos->second.end());
517 reg_num_collection::iterator unique_end =
518 std::unique(pos->second.begin(), pos->second.end());
519 if (unique_end != pos->second.end())
520 pos->second.erase(unique_end, pos->second.end());
522 assert(!pos->second.empty());
523 if (pos->second.back() != LLDB_INVALID_REGNUM)
524 pos->second.push_back(LLDB_INVALID_REGNUM);
527 // Now update all invalidate_regs with each register info as needed
528 for (size_t i = 0; i < num_regs; ++i) {
529 if (m_invalidate_regs_map.find(i) != m_invalidate_regs_map.end())
530 m_regs[i].invalidate_regs = m_invalidate_regs_map[i].data();
532 m_regs[i].invalidate_regs = nullptr;
535 // Check if we need to automatically set the generic registers in case they
537 bool generic_regs_specified = false;
538 for (const auto ® : m_regs) {
539 if (reg.kinds[eRegisterKindGeneric] != LLDB_INVALID_REGNUM) {
540 generic_regs_specified = true;
545 if (!generic_regs_specified) {
546 switch (arch.GetMachine()) {
547 case llvm::Triple::aarch64:
548 case llvm::Triple::aarch64_be:
549 for (auto ® : m_regs) {
550 if (strcmp(reg.name, "pc") == 0)
551 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC;
552 else if ((strcmp(reg.name, "fp") == 0) ||
553 (strcmp(reg.name, "x29") == 0))
554 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP;
555 else if ((strcmp(reg.name, "lr") == 0) ||
556 (strcmp(reg.name, "x30") == 0))
557 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_RA;
558 else if ((strcmp(reg.name, "sp") == 0) ||
559 (strcmp(reg.name, "x31") == 0))
560 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP;
561 else if (strcmp(reg.name, "cpsr") == 0)
562 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS;
566 case llvm::Triple::arm:
567 case llvm::Triple::armeb:
568 case llvm::Triple::thumb:
569 case llvm::Triple::thumbeb:
570 for (auto ® : m_regs) {
571 if ((strcmp(reg.name, "pc") == 0) || (strcmp(reg.name, "r15") == 0))
572 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC;
573 else if ((strcmp(reg.name, "sp") == 0) ||
574 (strcmp(reg.name, "r13") == 0))
575 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP;
576 else if ((strcmp(reg.name, "lr") == 0) ||
577 (strcmp(reg.name, "r14") == 0))
578 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_RA;
579 else if ((strcmp(reg.name, "r7") == 0) &&
580 arch.GetTriple().getVendor() == llvm::Triple::Apple)
581 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP;
582 else if ((strcmp(reg.name, "r11") == 0) &&
583 arch.GetTriple().getVendor() != llvm::Triple::Apple)
584 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP;
585 else if (strcmp(reg.name, "fp") == 0)
586 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP;
587 else if (strcmp(reg.name, "cpsr") == 0)
588 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS;
592 case llvm::Triple::x86:
593 for (auto ® : m_regs) {
594 if ((strcmp(reg.name, "eip") == 0) || (strcmp(reg.name, "pc") == 0))
595 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC;
596 else if ((strcmp(reg.name, "esp") == 0) ||
597 (strcmp(reg.name, "sp") == 0))
598 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP;
599 else if ((strcmp(reg.name, "ebp") == 0) ||
600 (strcmp(reg.name, "fp") == 0))
601 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP;
602 else if ((strcmp(reg.name, "eflags") == 0) ||
603 (strcmp(reg.name, "flags") == 0))
604 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS;
608 case llvm::Triple::x86_64:
609 for (auto ® : m_regs) {
610 if ((strcmp(reg.name, "rip") == 0) || (strcmp(reg.name, "pc") == 0))
611 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_PC;
612 else if ((strcmp(reg.name, "rsp") == 0) ||
613 (strcmp(reg.name, "sp") == 0))
614 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_SP;
615 else if ((strcmp(reg.name, "rbp") == 0) ||
616 (strcmp(reg.name, "fp") == 0))
617 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FP;
618 else if ((strcmp(reg.name, "rflags") == 0) ||
619 (strcmp(reg.name, "flags") == 0))
620 reg.kinds[eRegisterKindGeneric] = LLDB_REGNUM_GENERIC_FLAGS;
630 size_t DynamicRegisterInfo::GetNumRegisters() const { return m_regs.size(); }
632 size_t DynamicRegisterInfo::GetNumRegisterSets() const { return m_sets.size(); }
634 size_t DynamicRegisterInfo::GetRegisterDataByteSize() const {
635 return m_reg_data_byte_size;
639 DynamicRegisterInfo::GetRegisterInfoAtIndex(uint32_t i) const {
640 if (i < m_regs.size())
645 RegisterInfo *DynamicRegisterInfo::GetRegisterInfoAtIndex(uint32_t i) {
646 if (i < m_regs.size())
651 const RegisterSet *DynamicRegisterInfo::GetRegisterSet(uint32_t i) const {
652 if (i < m_sets.size())
657 uint32_t DynamicRegisterInfo::GetRegisterSetIndexByName(ConstString &set_name,
659 name_collection::iterator pos, end = m_set_names.end();
660 for (pos = m_set_names.begin(); pos != end; ++pos) {
661 if (*pos == set_name)
662 return std::distance(m_set_names.begin(), pos);
665 m_set_names.push_back(set_name);
666 m_set_reg_nums.resize(m_set_reg_nums.size() + 1);
667 RegisterSet new_set = {set_name.AsCString(), nullptr, 0, nullptr};
668 m_sets.push_back(new_set);
669 return m_sets.size() - 1;
673 DynamicRegisterInfo::ConvertRegisterKindToRegisterNumber(uint32_t kind,
674 uint32_t num) const {
675 reg_collection::const_iterator pos, end = m_regs.end();
676 for (pos = m_regs.begin(); pos != end; ++pos) {
677 if (pos->kinds[kind] == num)
678 return std::distance(m_regs.begin(), pos);
681 return LLDB_INVALID_REGNUM;
684 void DynamicRegisterInfo::Clear() {
687 m_set_reg_nums.clear();
689 m_value_regs_map.clear();
690 m_invalidate_regs_map.clear();
691 m_dynamic_reg_size_map.clear();
692 m_reg_data_byte_size = 0;
696 void DynamicRegisterInfo::Dump() const {
697 StreamFile s(stdout, false);
698 const size_t num_regs = m_regs.size();
699 s.Printf("%p: DynamicRegisterInfo contains %" PRIu64 " registers:\n",
700 static_cast<const void *>(this), static_cast<uint64_t>(num_regs));
701 for (size_t i = 0; i < num_regs; ++i) {
702 s.Printf("[%3" PRIu64 "] name = %-10s", (uint64_t)i, m_regs[i].name);
703 s.Printf(", size = %2u, offset = %4u, encoding = %u, format = %-10s",
704 m_regs[i].byte_size, m_regs[i].byte_offset, m_regs[i].encoding,
705 FormatManager::GetFormatAsCString(m_regs[i].format));
706 if (m_regs[i].kinds[eRegisterKindProcessPlugin] != LLDB_INVALID_REGNUM)
707 s.Printf(", process plugin = %3u",
708 m_regs[i].kinds[eRegisterKindProcessPlugin]);
709 if (m_regs[i].kinds[eRegisterKindDWARF] != LLDB_INVALID_REGNUM)
710 s.Printf(", dwarf = %3u", m_regs[i].kinds[eRegisterKindDWARF]);
711 if (m_regs[i].kinds[eRegisterKindEHFrame] != LLDB_INVALID_REGNUM)
712 s.Printf(", ehframe = %3u", m_regs[i].kinds[eRegisterKindEHFrame]);
713 if (m_regs[i].kinds[eRegisterKindGeneric] != LLDB_INVALID_REGNUM)
714 s.Printf(", generic = %3u", m_regs[i].kinds[eRegisterKindGeneric]);
715 if (m_regs[i].alt_name)
716 s.Printf(", alt-name = %s", m_regs[i].alt_name);
717 if (m_regs[i].value_regs) {
718 s.Printf(", value_regs = [ ");
719 for (size_t j = 0; m_regs[i].value_regs[j] != LLDB_INVALID_REGNUM; ++j) {
720 s.Printf("%s ", m_regs[m_regs[i].value_regs[j]].name);
724 if (m_regs[i].invalidate_regs) {
725 s.Printf(", invalidate_regs = [ ");
726 for (size_t j = 0; m_regs[i].invalidate_regs[j] != LLDB_INVALID_REGNUM;
728 s.Printf("%s ", m_regs[m_regs[i].invalidate_regs[j]].name);
735 const size_t num_sets = m_sets.size();
736 s.Printf("%p: DynamicRegisterInfo contains %" PRIu64 " register sets:\n",
737 static_cast<const void *>(this), static_cast<uint64_t>(num_sets));
738 for (size_t i = 0; i < num_sets; ++i) {
739 s.Printf("set[%" PRIu64 "] name = %s, regs = [", (uint64_t)i,
741 for (size_t idx = 0; idx < m_sets[i].num_registers; ++idx) {
742 s.Printf("%s ", m_regs[m_sets[i].registers[idx]].name);
748 const lldb_private::RegisterInfo *DynamicRegisterInfo::GetRegisterInfo(
749 lldb_private::ConstString reg_name) const {
750 for (auto ®_info : m_regs) {
751 // We can use pointer comparison since we used a ConstString to set the
752 // "name" member in AddRegister()
753 if (reg_info.name == reg_name.GetCString()) {