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Args.cpp
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1 //===-- Args.cpp ----------------------------------------------------------===//
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/Utility/Args.h"
11 #include "lldb/Utility/FileSpec.h"
12 #include "lldb/Utility/Stream.h"
14 #include "llvm/ADT/StringSwitch.h"
15 
16 using namespace lldb;
17 using namespace lldb_private;
18 
19 // A helper function for argument parsing.
20 // Parses the initial part of the first argument using normal double quote
21 // rules: backslash escapes the double quote and itself. The parsed string is
22 // appended to the second argument. The function returns the unparsed portion
23 // of the string, starting at the closing quote.
24 static llvm::StringRef ParseDoubleQuotes(llvm::StringRef quoted,
25  std::string &result) {
26  // Inside double quotes, '\' and '"' are special.
27  static const char *k_escapable_characters = "\"\\";
28  while (true) {
29  // Skip over over regular characters and append them.
30  size_t regular = quoted.find_first_of(k_escapable_characters);
31  result += quoted.substr(0, regular);
32  quoted = quoted.substr(regular);
33 
34  // If we have reached the end of string or the closing quote, we're done.
35  if (quoted.empty() || quoted.front() == '"')
36  break;
37 
38  // We have found a backslash.
39  quoted = quoted.drop_front();
40 
41  if (quoted.empty()) {
42  // A lone backslash at the end of string, let's just append it.
43  result += '\\';
44  break;
45  }
46 
47  // If the character after the backslash is not an allowed escapable
48  // character, we leave the character sequence untouched.
49  if (strchr(k_escapable_characters, quoted.front()) == nullptr)
50  result += '\\';
51 
52  result += quoted.front();
53  quoted = quoted.drop_front();
54  }
55 
56  return quoted;
57 }
58 
59 static size_t ArgvToArgc(const char **argv) {
60  if (!argv)
61  return 0;
62  size_t count = 0;
63  while (*argv++)
64  ++count;
65  return count;
66 }
67 
68 // Trims all whitespace that can separate command line arguments from the left
69 // side of the string.
70 static llvm::StringRef ltrimForArgs(llvm::StringRef str) {
71  static const char *k_space_separators = " \t";
72  return str.ltrim(k_space_separators);
73 }
74 
75 // A helper function for SetCommandString. Parses a single argument from the
76 // command string, processing quotes and backslashes in a shell-like manner.
77 // The function returns a tuple consisting of the parsed argument, the quote
78 // char used, and the unparsed portion of the string starting at the first
79 // unqouted, unescaped whitespace character.
80 static std::tuple<std::string, char, llvm::StringRef>
81 ParseSingleArgument(llvm::StringRef command) {
82  // Argument can be split into multiple discontiguous pieces, for example:
83  // "Hello ""World"
84  // this would result in a single argument "Hello World" (without the quotes)
85  // since the quotes would be removed and there is not space between the
86  // strings.
87  std::string arg;
88 
89  // Since we can have multiple quotes that form a single command in a command
90  // like: "Hello "world'!' (which will make a single argument "Hello world!")
91  // we remember the first quote character we encounter and use that for the
92  // quote character.
93  char first_quote_char = '\0';
94 
95  bool arg_complete = false;
96  do {
97  // Skip over over regular characters and append them.
98  size_t regular = command.find_first_of(" \t\r\"'`\\");
99  arg += command.substr(0, regular);
100  command = command.substr(regular);
101 
102  if (command.empty())
103  break;
104 
105  char special = command.front();
106  command = command.drop_front();
107  switch (special) {
108  case '\\':
109  if (command.empty()) {
110  arg += '\\';
111  break;
112  }
113 
114  // If the character after the backslash is not an allowed escapable
115  // character, we leave the character sequence untouched.
116  if (strchr(" \t\\'\"`", command.front()) == nullptr)
117  arg += '\\';
118 
119  arg += command.front();
120  command = command.drop_front();
121 
122  break;
123 
124  case ' ':
125  case '\t':
126  case '\r':
127  // We are not inside any quotes, we just found a space after an argument.
128  // We are done.
129  arg_complete = true;
130  break;
131 
132  case '"':
133  case '\'':
134  case '`':
135  // We found the start of a quote scope.
136  if (first_quote_char == '\0')
137  first_quote_char = special;
138 
139  if (special == '"')
140  command = ParseDoubleQuotes(command, arg);
141  else {
142  // For single quotes, we simply skip ahead to the matching quote
143  // character (or the end of the string).
144  size_t quoted = command.find(special);
145  arg += command.substr(0, quoted);
146  command = command.substr(quoted);
147  }
148 
149  // If we found a closing quote, skip it.
150  if (!command.empty())
151  command = command.drop_front();
152 
153  break;
154  }
155  } while (!arg_complete);
156 
157  return std::make_tuple(arg, first_quote_char, command);
158 }
159 
160 Args::ArgEntry::ArgEntry(llvm::StringRef str, char quote) : quote(quote) {
161  size_t size = str.size();
162  ptr.reset(new char[size + 1]);
163 
164  ::memcpy(data(), str.data() ? str.data() : "", size);
165  ptr[size] = 0;
166 }
167 
168 // Args constructor
169 Args::Args(llvm::StringRef command) { SetCommandString(command); }
170 
171 Args::Args(const Args &rhs) { *this = rhs; }
172 
173 Args::Args(const StringList &list) : Args() {
174  for (const std::string &arg : list)
175  AppendArgument(arg);
176 }
177 
178 Args::Args(llvm::ArrayRef<llvm::StringRef> args) : Args() {
179  for (llvm::StringRef arg : args)
180  AppendArgument(arg);
181 }
182 
183 Args &Args::operator=(const Args &rhs) {
184  Clear();
185 
186  m_argv.clear();
187  m_entries.clear();
188  for (auto &entry : rhs.m_entries) {
189  m_entries.emplace_back(entry.ref(), entry.quote);
190  m_argv.push_back(m_entries.back().data());
191  }
192  m_argv.push_back(nullptr);
193  return *this;
194 }
195 
196 // Destructor
197 Args::~Args() = default;
198 
199 void Args::Dump(Stream &s, const char *label_name) const {
200  if (!label_name)
201  return;
202 
203  int i = 0;
204  for (auto &entry : m_entries) {
205  s.Indent();
206  s.Format("{0}[{1}]=\"{2}\"\n", label_name, i++, entry.ref());
207  }
208  s.Format("{0}[{1}]=NULL\n", label_name, i);
209  s.EOL();
210 }
211 
212 bool Args::GetCommandString(std::string &command) const {
213  command.clear();
214 
215  for (size_t i = 0; i < m_entries.size(); ++i) {
216  if (i > 0)
217  command += ' ';
218  command += m_entries[i].ref();
219  }
220 
221  return !m_entries.empty();
222 }
223 
225  command.clear();
226 
227  for (size_t i = 0; i < m_entries.size(); ++i) {
228  if (i > 0)
229  command += ' ';
230 
231  if (m_entries[i].quote) {
232  command += m_entries[i].quote;
233  command += m_entries[i].ref();
234  command += m_entries[i].quote;
235  } else {
236  command += m_entries[i].ref();
237  }
238  }
239 
240  return !m_entries.empty();
241 }
242 
243 void Args::SetCommandString(llvm::StringRef command) {
244  Clear();
245  m_argv.clear();
246 
247  command = ltrimForArgs(command);
248  std::string arg;
249  char quote;
250  while (!command.empty()) {
251  std::tie(arg, quote, command) = ParseSingleArgument(command);
252  m_entries.emplace_back(arg, quote);
253  m_argv.push_back(m_entries.back().data());
254  command = ltrimForArgs(command);
255  }
256  m_argv.push_back(nullptr);
257 }
258 
259 const char *Args::GetArgumentAtIndex(size_t idx) const {
260  if (idx < m_argv.size())
261  return m_argv[idx];
262  return nullptr;
263 }
264 
266  assert(!m_argv.empty());
267  // TODO: functions like execve and posix_spawnp exhibit undefined behavior
268  // when argv or envp is null. So the code below is actually wrong. However,
269  // other code in LLDB depends on it being null. The code has been acting
270  // this way for some time, so it makes sense to leave it this way until
271  // someone has the time to come along and fix it.
272  return (m_argv.size() > 1) ? m_argv.data() : nullptr;
273 }
274 
275 const char **Args::GetConstArgumentVector() const {
276  assert(!m_argv.empty());
277  return (m_argv.size() > 1) ? const_cast<const char **>(m_argv.data())
278  : nullptr;
279 }
280 
281 void Args::Shift() {
282  // Don't pop the last NULL terminator from the argv array
283  if (m_entries.empty())
284  return;
285  m_argv.erase(m_argv.begin());
286  m_entries.erase(m_entries.begin());
287 }
288 
289 void Args::Unshift(llvm::StringRef arg_str, char quote_char) {
290  InsertArgumentAtIndex(0, arg_str, quote_char);
291 }
292 
293 void Args::AppendArguments(const Args &rhs) {
294  assert(m_argv.size() == m_entries.size() + 1);
295  assert(m_argv.back() == nullptr);
296  m_argv.pop_back();
297  for (auto &entry : rhs.m_entries) {
298  m_entries.emplace_back(entry.ref(), entry.quote);
299  m_argv.push_back(m_entries.back().data());
300  }
301  m_argv.push_back(nullptr);
302 }
303 
304 void Args::AppendArguments(const char **argv) {
305  size_t argc = ArgvToArgc(argv);
306 
307  assert(m_argv.size() == m_entries.size() + 1);
308  assert(m_argv.back() == nullptr);
309  m_argv.pop_back();
310  for (auto arg : llvm::makeArrayRef(argv, argc)) {
311  m_entries.emplace_back(arg, '\0');
312  m_argv.push_back(m_entries.back().data());
313  }
314 
315  m_argv.push_back(nullptr);
316 }
317 
318 void Args::AppendArgument(llvm::StringRef arg_str, char quote_char) {
319  InsertArgumentAtIndex(GetArgumentCount(), arg_str, quote_char);
320 }
321 
322 void Args::InsertArgumentAtIndex(size_t idx, llvm::StringRef arg_str,
323  char quote_char) {
324  assert(m_argv.size() == m_entries.size() + 1);
325  assert(m_argv.back() == nullptr);
326 
327  if (idx > m_entries.size())
328  return;
329  m_entries.emplace(m_entries.begin() + idx, arg_str, quote_char);
330  m_argv.insert(m_argv.begin() + idx, m_entries[idx].data());
331 }
332 
333 void Args::ReplaceArgumentAtIndex(size_t idx, llvm::StringRef arg_str,
334  char quote_char) {
335  assert(m_argv.size() == m_entries.size() + 1);
336  assert(m_argv.back() == nullptr);
337 
338  if (idx >= m_entries.size())
339  return;
340 
341  m_entries[idx] = ArgEntry(arg_str, quote_char);
342  m_argv[idx] = m_entries[idx].data();
343 }
344 
345 void Args::DeleteArgumentAtIndex(size_t idx) {
346  if (idx >= m_entries.size())
347  return;
348 
349  m_argv.erase(m_argv.begin() + idx);
350  m_entries.erase(m_entries.begin() + idx);
351 }
352 
353 void Args::SetArguments(size_t argc, const char **argv) {
354  Clear();
355 
356  auto args = llvm::makeArrayRef(argv, argc);
357  m_entries.resize(argc);
358  m_argv.resize(argc + 1);
359  for (size_t i = 0; i < args.size(); ++i) {
360  char quote =
361  ((args[i][0] == '\'') || (args[i][0] == '"') || (args[i][0] == '`'))
362  ? args[i][0]
363  : '\0';
364 
365  m_entries[i] = ArgEntry(args[i], quote);
366  m_argv[i] = m_entries[i].data();
367  }
368 }
369 
370 void Args::SetArguments(const char **argv) {
371  SetArguments(ArgvToArgc(argv), argv);
372 }
373 
374 void Args::Clear() {
375  m_entries.clear();
376  m_argv.clear();
377  m_argv.push_back(nullptr);
378 }
379 
381  llvm::StringRef unsafe_arg) {
382  struct ShellDescriptor {
383  ConstString m_basename;
384  llvm::StringRef m_escapables;
385  };
386 
387  static ShellDescriptor g_Shells[] = {{ConstString("bash"), " '\"<>()&"},
388  {ConstString("tcsh"), " '\"<>()&$"},
389  {ConstString("zsh"), " '\"<>()&;\\|"},
390  {ConstString("sh"), " '\"<>()&"}};
391 
392  // safe minimal set
393  llvm::StringRef escapables = " '\"";
394 
395  if (auto basename = shell.GetFilename()) {
396  for (const auto &Shell : g_Shells) {
397  if (Shell.m_basename == basename) {
398  escapables = Shell.m_escapables;
399  break;
400  }
401  }
402  }
403 
404  std::string safe_arg;
405  safe_arg.reserve(unsafe_arg.size());
406  // Add a \ before every character that needs to be escaped.
407  for (char c : unsafe_arg) {
408  if (escapables.contains(c))
409  safe_arg.push_back('\\');
410  safe_arg.push_back(c);
411  }
412  return safe_arg;
413 }
414 
416  lldb::Encoding fail_value) {
417  return llvm::StringSwitch<lldb::Encoding>(s)
418  .Case("uint", eEncodingUint)
419  .Case("sint", eEncodingSint)
420  .Case("ieee754", eEncodingIEEE754)
421  .Case("vector", eEncodingVector)
422  .Default(fail_value);
423 }
424 
426  if (s.empty())
427  return LLDB_INVALID_REGNUM;
428  uint32_t result = llvm::StringSwitch<uint32_t>(s)
429  .Case("pc", LLDB_REGNUM_GENERIC_PC)
430  .Case("sp", LLDB_REGNUM_GENERIC_SP)
431  .Case("fp", LLDB_REGNUM_GENERIC_FP)
432  .Cases("ra", "lr", LLDB_REGNUM_GENERIC_RA)
433  .Case("flags", LLDB_REGNUM_GENERIC_FLAGS)
434  .Case("arg1", LLDB_REGNUM_GENERIC_ARG1)
435  .Case("arg2", LLDB_REGNUM_GENERIC_ARG2)
436  .Case("arg3", LLDB_REGNUM_GENERIC_ARG3)
437  .Case("arg4", LLDB_REGNUM_GENERIC_ARG4)
438  .Case("arg5", LLDB_REGNUM_GENERIC_ARG5)
439  .Case("arg6", LLDB_REGNUM_GENERIC_ARG6)
440  .Case("arg7", LLDB_REGNUM_GENERIC_ARG7)
441  .Case("arg8", LLDB_REGNUM_GENERIC_ARG8)
442  .Default(LLDB_INVALID_REGNUM);
443  return result;
444 }
445 
446 void Args::EncodeEscapeSequences(const char *src, std::string &dst) {
447  dst.clear();
448  if (src) {
449  for (const char *p = src; *p != '\0'; ++p) {
450  size_t non_special_chars = ::strcspn(p, "\\");
451  if (non_special_chars > 0) {
452  dst.append(p, non_special_chars);
453  p += non_special_chars;
454  if (*p == '\0')
455  break;
456  }
457 
458  if (*p == '\\') {
459  ++p; // skip the slash
460  switch (*p) {
461  case 'a':
462  dst.append(1, '\a');
463  break;
464  case 'b':
465  dst.append(1, '\b');
466  break;
467  case 'f':
468  dst.append(1, '\f');
469  break;
470  case 'n':
471  dst.append(1, '\n');
472  break;
473  case 'r':
474  dst.append(1, '\r');
475  break;
476  case 't':
477  dst.append(1, '\t');
478  break;
479  case 'v':
480  dst.append(1, '\v');
481  break;
482  case '\\':
483  dst.append(1, '\\');
484  break;
485  case '\'':
486  dst.append(1, '\'');
487  break;
488  case '"':
489  dst.append(1, '"');
490  break;
491  case '0':
492  // 1 to 3 octal chars
493  {
494  // Make a string that can hold onto the initial zero char, up to 3
495  // octal digits, and a terminating NULL.
496  char oct_str[5] = {'\0', '\0', '\0', '\0', '\0'};
497 
498  int i;
499  for (i = 0; (p[i] >= '0' && p[i] <= '7') && i < 4; ++i)
500  oct_str[i] = p[i];
501 
502  // We don't want to consume the last octal character since the main
503  // for loop will do this for us, so we advance p by one less than i
504  // (even if i is zero)
505  p += i - 1;
506  unsigned long octal_value = ::strtoul(oct_str, nullptr, 8);
507  if (octal_value <= UINT8_MAX) {
508  dst.append(1, static_cast<char>(octal_value));
509  }
510  }
511  break;
512 
513  case 'x':
514  // hex number in the format
515  if (isxdigit(p[1])) {
516  ++p; // Skip the 'x'
517 
518  // Make a string that can hold onto two hex chars plus a
519  // NULL terminator
520  char hex_str[3] = {*p, '\0', '\0'};
521  if (isxdigit(p[1])) {
522  ++p; // Skip the first of the two hex chars
523  hex_str[1] = *p;
524  }
525 
526  unsigned long hex_value = strtoul(hex_str, nullptr, 16);
527  if (hex_value <= UINT8_MAX)
528  dst.append(1, static_cast<char>(hex_value));
529  } else {
530  dst.append(1, 'x');
531  }
532  break;
533 
534  default:
535  // Just desensitize any other character by just printing what came
536  // after the '\'
537  dst.append(1, *p);
538  break;
539  }
540  }
541  }
542  }
543 }
544 
545 void Args::ExpandEscapedCharacters(const char *src, std::string &dst) {
546  dst.clear();
547  if (src) {
548  for (const char *p = src; *p != '\0'; ++p) {
549  if (llvm::isPrint(*p))
550  dst.append(1, *p);
551  else {
552  switch (*p) {
553  case '\a':
554  dst.append("\\a");
555  break;
556  case '\b':
557  dst.append("\\b");
558  break;
559  case '\f':
560  dst.append("\\f");
561  break;
562  case '\n':
563  dst.append("\\n");
564  break;
565  case '\r':
566  dst.append("\\r");
567  break;
568  case '\t':
569  dst.append("\\t");
570  break;
571  case '\v':
572  dst.append("\\v");
573  break;
574  case '\'':
575  dst.append("\\'");
576  break;
577  case '"':
578  dst.append("\\\"");
579  break;
580  case '\\':
581  dst.append("\\\\");
582  break;
583  default: {
584  // Just encode as octal
585  dst.append("\\0");
586  char octal_str[32];
587  snprintf(octal_str, sizeof(octal_str), "%o", *p);
588  dst.append(octal_str);
589  } break;
590  }
591  }
592  }
593  }
594 }
595 
597  char quote_char) {
598  const char *chars_to_escape = nullptr;
599  switch (quote_char) {
600  case '\0':
601  chars_to_escape = " \t\\'\"`";
602  break;
603  case '"':
604  chars_to_escape = "$\"`\\";
605  break;
606  case '`':
607  case '\'':
608  return arg;
609  default:
610  assert(false && "Unhandled quote character");
611  return arg;
612  }
613 
614  std::string res;
615  res.reserve(arg.size());
616  for (char c : arg) {
617  if (::strchr(chars_to_escape, c))
618  res.push_back('\\');
619  res.push_back(c);
620  }
621  return res;
622 }
623 
624 OptionsWithRaw::OptionsWithRaw(llvm::StringRef arg_string) {
625  SetFromString(arg_string);
626 }
627 
628 void OptionsWithRaw::SetFromString(llvm::StringRef arg_string) {
629  const llvm::StringRef original_args = arg_string;
630 
631  arg_string = ltrimForArgs(arg_string);
632  std::string arg;
633  char quote;
634 
635  // If the string doesn't start with a dash, we just have no options and just
636  // a raw part.
637  if (!arg_string.startswith("-")) {
638  m_suffix = std::string(original_args);
639  return;
640  }
641 
642  bool found_suffix = false;
643  while (!arg_string.empty()) {
644  // The length of the prefix before parsing.
645  std::size_t prev_prefix_length = original_args.size() - arg_string.size();
646 
647  // Parse the next argument from the remaining string.
648  std::tie(arg, quote, arg_string) = ParseSingleArgument(arg_string);
649 
650  // If we get an unquoted '--' argument, then we reached the suffix part
651  // of the command.
652  Args::ArgEntry entry(arg, quote);
653  if (!entry.IsQuoted() && arg == "--") {
654  // The remaining line is the raw suffix, and the line we parsed so far
655  // needs to be interpreted as arguments.
656  m_has_args = true;
657  m_suffix = std::string(arg_string);
658  found_suffix = true;
659 
660  // The length of the prefix after parsing.
661  std::size_t prefix_length = original_args.size() - arg_string.size();
662 
663  // Take the string we know contains all the arguments and actually parse
664  // it as proper arguments.
665  llvm::StringRef prefix = original_args.take_front(prev_prefix_length);
666  m_args = Args(prefix);
667  m_arg_string = prefix;
668 
669  // We also record the part of the string that contains the arguments plus
670  // the delimiter.
671  m_arg_string_with_delimiter = original_args.take_front(prefix_length);
672 
673  // As the rest of the string became the raw suffix, we are done here.
674  break;
675  }
676 
677  arg_string = ltrimForArgs(arg_string);
678  }
679 
680  // If we didn't find a suffix delimiter, the whole string is the raw suffix.
681  if (!found_suffix)
682  m_suffix = std::string(original_args);
683 }
684 
685 void llvm::yaml::MappingTraits<Args::ArgEntry>::mapping(IO &io,
686  Args::ArgEntry &v) {
687  MappingNormalization<NormalizedArgEntry, Args::ArgEntry> keys(io, v);
688  io.mapRequired("value", keys->value);
689  io.mapRequired("quote", keys->quote);
690 }
691 
692 void llvm::yaml::MappingTraits<Args>::mapping(IO &io, Args &v) {
693  io.mapRequired("entries", v.m_entries);
694 
695  // Recompute m_argv vector.
696  v.m_argv.clear();
697  for (auto &entry : v.m_entries)
698  v.m_argv.push_back(entry.data());
699  v.m_argv.push_back(nullptr);
700 }
lldb_private::Args::ExpandEscapedCharacters
static void ExpandEscapedCharacters(const char *src, std::string &dst)
ExpandEscapeSequences will change a string of possibly non-printable characters and expand them into ...
Definition: Args.cpp:545
lldb_private::Stream::Format
void Format(const char *format, Args &&... args)
Definition: Stream.h:309
LLDB_REGNUM_GENERIC_ARG2
#define LLDB_REGNUM_GENERIC_ARG2
Definition: lldb-defines.h:70
LLDB_REGNUM_GENERIC_ARG3
#define LLDB_REGNUM_GENERIC_ARG3
Definition: lldb-defines.h:72
lldb_private::Args::ReplaceArgumentAtIndex
void ReplaceArgumentAtIndex(size_t idx, llvm::StringRef arg_str, char quote_char='\0')
Replaces the argument value at index idx to arg_str if idx is a valid argument index.
Definition: Args.cpp:333
lldb_private::Args::ArgEntry
Definition: Args.h:35
LLDB_REGNUM_GENERIC_ARG1
#define LLDB_REGNUM_GENERIC_ARG1
Definition: lldb-defines.h:68
LLDB_INVALID_REGNUM
#define LLDB_INVALID_REGNUM
Definition: lldb-defines.h:91
LLDB_REGNUM_GENERIC_ARG5
#define LLDB_REGNUM_GENERIC_ARG5
Definition: lldb-defines.h:76
lldb_private::Args::EscapeLLDBCommandArgument
static std::string EscapeLLDBCommandArgument(const std::string &arg, char quote_char)
Definition: Args.cpp:596
lldb_private::Args::Shift
void Shift()
Shifts the first argument C string value of the array off the argument array.
Definition: Args.cpp:281
lldb_private::OptionsWithRaw::m_arg_string_with_delimiter
llvm::StringRef m_arg_string_with_delimiter
Definition: Args.h:377
ltrimForArgs
static llvm::StringRef ltrimForArgs(llvm::StringRef str)
Definition: Args.cpp:70
lldb_private::Args::AppendArguments
void AppendArguments(const Args &rhs)
Definition: Args.cpp:293
lldb_private::Args::AppendArgument
void AppendArgument(llvm::StringRef arg_str, char quote_char='\0')
Appends a new argument to the end of the list argument list.
Definition: Args.cpp:318
lldb::eEncodingIEEE754
@ eEncodingIEEE754
float
Definition: lldb-enumerations.h:150
lldb_private::Args::Clear
void Clear()
Clear the arguments.
Definition: Args.cpp:374
lldb_private::Args::StringToGenericRegister
static uint32_t StringToGenericRegister(llvm::StringRef s)
Definition: Args.cpp:425
lldb_private::OptionsWithRaw::OptionsWithRaw
OptionsWithRaw(llvm::StringRef argument_string)
Parse the given string as a list of optional arguments with a raw suffix.
Definition: Args.cpp:624
lldb_private::Args::SetCommandString
void SetCommandString(llvm::StringRef command)
Sets the command string contained by this object.
Definition: Args.cpp:243
ArgvToArgc
static size_t ArgvToArgc(const char **argv)
Definition: Args.cpp:59
lldb_private::Stream
Definition: Stream.h:28
lldb_private::Args
Definition: Args.h:33
lldb_private::Args::ArgEntry::ptr
std::unique_ptr< char[]> ptr
Definition: Args.h:41
lldb_private::Args::GetQuotedCommandString
bool GetQuotedCommandString(std::string &command) const
Definition: Args.cpp:224
lldb_private::Args::m_entries
std::vector< ArgEntry > m_entries
Definition: Args.h:292
lldb_private::Args::ArgEntry::data
char * data()
Definition: Args.h:44
LLDB_REGNUM_GENERIC_ARG6
#define LLDB_REGNUM_GENERIC_ARG6
Definition: lldb-defines.h:78
lldb_private::OptionsWithRaw::m_args
Args m_args
Definition: Args.h:375
lldb_private::Args::InsertArgumentAtIndex
void InsertArgumentAtIndex(size_t idx, llvm::StringRef arg_str, char quote_char='\0')
Insert the argument value at index idx to arg_str.
Definition: Args.cpp:322
LLDB_REGNUM_GENERIC_FLAGS
#define LLDB_REGNUM_GENERIC_FLAGS
Definition: lldb-defines.h:67
lldb_private::FileSpec
Definition: FileSpec.h:56
lldb::eEncodingSint
@ eEncodingSint
signed integer
Definition: lldb-enumerations.h:149
lldb_private::Stream::Indent
size_t Indent(llvm::StringRef s="")
Indent the current line in the stream.
Definition: Stream.cpp:130
lldb_private::OptionsWithRaw::m_has_args
bool m_has_args
Keeps track if we have parsed and stored any arguments.
Definition: Args.h:374
ParseSingleArgument
static std::tuple< std::string, char, llvm::StringRef > ParseSingleArgument(llvm::StringRef command)
Definition: Args.cpp:81
Args.h
lldb_private::Args::SetArguments
void SetArguments(size_t argc, const char **argv)
Sets the argument vector value, optionally copying all arguments into an internal buffer.
Definition: Args.cpp:353
lldb_private::OptionsWithRaw::m_arg_string
llvm::StringRef m_arg_string
Definition: Args.h:376
lldb::eEncodingUint
@ eEncodingUint
unsigned integer
Definition: lldb-enumerations.h:148
lldb_private::StringList
Definition: StringList.h:25
lldb_private::ConstString
Definition: ConstString.h:40
ParseDoubleQuotes
static llvm::StringRef ParseDoubleQuotes(llvm::StringRef quoted, std::string &result)
Definition: Args.cpp:24
lldb_private::Args::GetShellSafeArgument
static std::string GetShellSafeArgument(const FileSpec &shell, llvm::StringRef unsafe_arg)
Definition: Args.cpp:380
string
string(SUBSTRING ${p} 10 -1 pStripped) if($
Definition: Plugins/CMakeLists.txt:39
StringList.h
lldb_private::Args::DeleteArgumentAtIndex
void DeleteArgumentAtIndex(size_t idx)
Deletes the argument value at index if idx is a valid argument index.
Definition: Args.cpp:345
lldb_private::Args::StringToEncoding
static lldb::Encoding StringToEncoding(llvm::StringRef s, lldb::Encoding fail_value=lldb::eEncodingInvalid)
Definition: Args.cpp:415
lldb::eEncodingVector
@ eEncodingVector
vector registers
Definition: lldb-enumerations.h:151
lldb_private::OptionsWithRaw::SetFromString
void SetFromString(llvm::StringRef arg_string)
Definition: Args.cpp:628
lldb_private::Args::GetArgumentAtIndex
const char * GetArgumentAtIndex(size_t idx) const
Gets the NULL terminated C string argument pointer for the argument at index idx.
Definition: Args.cpp:259
uint32_t
LLDB_REGNUM_GENERIC_SP
#define LLDB_REGNUM_GENERIC_SP
Definition: lldb-defines.h:64
lldb_private::Args::GetConstArgumentVector
const char ** GetConstArgumentVector() const
Gets the argument vector.
Definition: Args.cpp:275
lldb_private::Args::Args
Args(llvm::StringRef command=llvm::StringRef())
Construct with an option command string.
Definition: Args.cpp:169
lldb_private::Stream::EOL
size_t EOL()
Output and End of Line character to the stream.
Definition: Stream.cpp:128
lldb_private::Args::Unshift
void Unshift(llvm::StringRef arg_str, char quote_char='\0')
Inserts a class owned copy of arg_str at the beginning of the argument vector.
Definition: Args.cpp:289
lldb_private::Args::EncodeEscapeSequences
static void EncodeEscapeSequences(const char *src, std::string &dst)
EncodeEscapeSequences will change the textual representation of common escape sequences like "\n" (tw...
Definition: Args.cpp:446
lldb_private::Args::~Args
~Args()
Destructor.
lldb::Encoding
Encoding
Register encoding definitions.
Definition: lldb-enumerations.h:146
lldb_private::Args::GetCommandString
bool GetCommandString(std::string &command) const
Definition: Args.cpp:212
lldb_private::Args::GetArgumentVector
char ** GetArgumentVector()
Gets the argument vector.
Definition: Args.cpp:265
LLDB_REGNUM_GENERIC_ARG4
#define LLDB_REGNUM_GENERIC_ARG4
Definition: lldb-defines.h:74
lldb_private
A class that represents a running process on the host machine.
Definition: SBCommandInterpreterRunOptions.h:16
LLDB_REGNUM_GENERIC_FP
#define LLDB_REGNUM_GENERIC_FP
Definition: lldb-defines.h:65
lldb_private::Args::operator=
Args & operator=(const Args &rhs)
Definition: Args.cpp:183
lldb_private::OptionsWithRaw::m_suffix
std::string m_suffix
Definition: Args.h:381
FileSpec.h
LLDB_REGNUM_GENERIC_PC
#define LLDB_REGNUM_GENERIC_PC
Definition: lldb-defines.h:63
ConstString.h
Stream.h
LLDB_REGNUM_GENERIC_ARG8
#define LLDB_REGNUM_GENERIC_ARG8
Definition: lldb-defines.h:82
LLDB_REGNUM_GENERIC_ARG7
#define LLDB_REGNUM_GENERIC_ARG7
Definition: lldb-defines.h:80
lldb_private::Args::Dump
void Dump(Stream &s, const char *label_name="argv") const
Dump all entries to the stream s using label label_name.
Definition: Args.cpp:199
lldb_private::Args::ArgEntry::IsQuoted
bool IsQuoted() const
Returns true if this argument was quoted in any way.
Definition: Args.h:54
lldb_private::Args::GetArgumentCount
size_t GetArgumentCount() const
Gets the number of arguments left in this command object.
Definition: Args.h:118
lldb
Definition: SBAddress.h:15
lldb_private::FileSpec::GetFilename
ConstString & GetFilename()
Filename string get accessor.
Definition: FileSpec.cpp:341
lldb_private::Args::size
size_t size() const
Definition: Args.h:137
lldb_private::Args::m_argv
std::vector< char * > m_argv
The arguments as C strings with a trailing nullptr element.
Definition: Args.h:297
LLDB_REGNUM_GENERIC_RA
#define LLDB_REGNUM_GENERIC_RA
Definition: lldb-defines.h:66