diff options
Diffstat (limited to 'source/Core/SourceManager.cpp')
| -rw-r--r-- | source/Core/SourceManager.cpp | 1180 |
1 files changed, 589 insertions, 591 deletions
diff --git a/source/Core/SourceManager.cpp b/source/Core/SourceManager.cpp index a69e75fe244a2..603fe57114987 100644 --- a/source/Core/SourceManager.cpp +++ b/source/Core/SourceManager.cpp @@ -18,682 +18,680 @@ #include "lldb/Core/Module.h" #include "lldb/Core/RegularExpression.h" #include "lldb/Core/Stream.h" +#include "lldb/Host/FileSystem.h" #include "lldb/Symbol/CompileUnit.h" #include "lldb/Symbol/Function.h" #include "lldb/Symbol/SymbolContext.h" #include "lldb/Target/Target.h" +#include "lldb/Utility/AnsiTerminal.h" using namespace lldb; using namespace lldb_private; - -static inline bool is_newline_char(char ch) -{ - return ch == '\n' || ch == '\r'; -} - +static inline bool is_newline_char(char ch) { return ch == '\n' || ch == '\r'; } //---------------------------------------------------------------------- // SourceManager constructor //---------------------------------------------------------------------- -SourceManager::SourceManager(const TargetSP &target_sp) : - m_last_file_sp (), - m_last_line (0), - m_last_count (0), - m_default_set(false), - m_target_wp (target_sp), - m_debugger_wp(target_sp->GetDebugger().shared_from_this()) -{ -} +SourceManager::SourceManager(const TargetSP &target_sp) + : m_last_file_sp(), m_last_line(0), m_last_count(0), m_default_set(false), + m_target_wp(target_sp), + m_debugger_wp(target_sp->GetDebugger().shared_from_this()) {} -SourceManager::SourceManager(const DebuggerSP &debugger_sp) : - m_last_file_sp (), - m_last_line (0), - m_last_count (0), - m_default_set(false), - m_target_wp (), - m_debugger_wp (debugger_sp) -{ -} +SourceManager::SourceManager(const DebuggerSP &debugger_sp) + : m_last_file_sp(), m_last_line(0), m_last_count(0), m_default_set(false), + m_target_wp(), m_debugger_wp(debugger_sp) {} //---------------------------------------------------------------------- // Destructor //---------------------------------------------------------------------- -SourceManager::~SourceManager() -{ -} +SourceManager::~SourceManager() {} + +SourceManager::FileSP SourceManager::GetFile(const FileSpec &file_spec) { + bool same_as_previous = + m_last_file_sp && m_last_file_sp->FileSpecMatches(file_spec); + + DebuggerSP debugger_sp(m_debugger_wp.lock()); + FileSP file_sp; + if (same_as_previous) + file_sp = m_last_file_sp; + else if (debugger_sp) + file_sp = debugger_sp->GetSourceFileCache().FindSourceFile(file_spec); + + TargetSP target_sp(m_target_wp.lock()); + + // It the target source path map has been updated, get this file again so we + // can successfully remap the source file + if (target_sp && file_sp && + file_sp->GetSourceMapModificationID() != + target_sp->GetSourcePathMap().GetModificationID()) + file_sp.reset(); + + // Update the file contents if needed if we found a file + if (file_sp) + file_sp->UpdateIfNeeded(); + + // If file_sp is no good or it points to a non-existent file, reset it. + if (!file_sp || !file_sp->GetFileSpec().Exists()) { + if (target_sp) + file_sp.reset(new File(file_spec, target_sp.get())); + else + file_sp.reset(new File(file_spec, debugger_sp)); -SourceManager::FileSP -SourceManager::GetFile (const FileSpec &file_spec) -{ - bool same_as_previous = m_last_file_sp && m_last_file_sp->FileSpecMatches (file_spec); - - DebuggerSP debugger_sp (m_debugger_wp.lock()); - FileSP file_sp; - if (same_as_previous) - file_sp = m_last_file_sp; - else if (debugger_sp) - file_sp = debugger_sp->GetSourceFileCache().FindSourceFile (file_spec); - - TargetSP target_sp (m_target_wp.lock()); - - // It the target source path map has been updated, get this file again so we - // can successfully remap the source file - if (target_sp && file_sp && file_sp->GetSourceMapModificationID() != target_sp->GetSourcePathMap().GetModificationID()) - file_sp.reset(); - - // Update the file contents if needed if we found a file - if (file_sp) - file_sp->UpdateIfNeeded(); - - // If file_sp is no good or it points to a non-existent file, reset it. - if (!file_sp || !file_sp->GetFileSpec().Exists()) - { - file_sp.reset (new File (file_spec, target_sp.get())); - - if (debugger_sp) - debugger_sp->GetSourceFileCache().AddSourceFile(file_sp); - } - return file_sp; + if (debugger_sp) + debugger_sp->GetSourceFileCache().AddSourceFile(file_sp); + } + return file_sp; } -size_t -SourceManager::DisplaySourceLinesWithLineNumbersUsingLastFile (uint32_t start_line, - uint32_t count, - uint32_t curr_line, - const char* current_line_cstr, - Stream *s, - const SymbolContextList *bp_locs) -{ - if (count == 0) - return 0; - size_t return_value = 0; - if (start_line == 0) - { - if (m_last_line != 0 && m_last_line != UINT32_MAX) - start_line = m_last_line + m_last_count; - else - start_line = 1; - } +static bool should_show_stop_column_with_ansi(DebuggerSP debugger_sp) { + // We don't use ANSI stop column formatting if we can't lookup values from + // the debugger. + if (!debugger_sp) + return false; - if (!m_default_set) - { - FileSpec tmp_spec; - uint32_t tmp_line; - GetDefaultFileAndLine(tmp_spec, tmp_line); - } + // We don't use ANSI stop column formatting if the debugger doesn't think + // it should be using color. + if (!debugger_sp->GetUseColor()) + return false; - m_last_line = start_line; - m_last_count = count; - - if (m_last_file_sp.get()) - { - const uint32_t end_line = start_line + count - 1; - for (uint32_t line = start_line; line <= end_line; ++line) - { - if (!m_last_file_sp->LineIsValid (line)) - { - m_last_line = UINT32_MAX; - break; - } + // We only use ANSI stop column formatting if we're either supposed to show + // ANSI where available (which we know we have when we get to this point), or + // if we're only supposed to use ANSI. + const auto value = debugger_sp->GetStopShowColumn(); + return ((value == eStopShowColumnAnsiOrCaret) || + (value == eStopShowColumnAnsi)); +} - char prefix[32] = ""; - if (bp_locs) - { - uint32_t bp_count = bp_locs->NumLineEntriesWithLine (line); - - if (bp_count > 0) - ::snprintf (prefix, sizeof (prefix), "[%u] ", bp_count); - else - ::snprintf (prefix, sizeof (prefix), " "); - } +static bool should_show_stop_column_with_caret(DebuggerSP debugger_sp) { + // We don't use text-based stop column formatting if we can't lookup values + // from the debugger. + if (!debugger_sp) + return false; - return_value += s->Printf("%s%2.2s %-4u\t", - prefix, - line == curr_line ? current_line_cstr : "", - line); - size_t this_line_size = m_last_file_sp->DisplaySourceLines (line, 0, 0, s); - if (this_line_size == 0) - { - m_last_line = UINT32_MAX; - break; - } - else - return_value += this_line_size; - } - } - return return_value; + // If we're asked to show the first available of ANSI or caret, then + // we do show the caret when ANSI is not available. + const auto value = debugger_sp->GetStopShowColumn(); + if ((value == eStopShowColumnAnsiOrCaret) && !debugger_sp->GetUseColor()) + return true; + + // The only other time we use caret is if we're explicitly asked to show + // caret. + return value == eStopShowColumnCaret; } -size_t -SourceManager::DisplaySourceLinesWithLineNumbers -( - const FileSpec &file_spec, - uint32_t line, - uint32_t context_before, - uint32_t context_after, - const char* current_line_cstr, - Stream *s, - const SymbolContextList *bp_locs -) -{ - FileSP file_sp (GetFile (file_spec)); - - uint32_t start_line; - uint32_t count = context_before + context_after + 1; - if (line > context_before) - start_line = line - context_before; +size_t SourceManager::DisplaySourceLinesWithLineNumbersUsingLastFile( + uint32_t start_line, uint32_t count, uint32_t curr_line, uint32_t column, + const char *current_line_cstr, Stream *s, + const SymbolContextList *bp_locs) { + if (count == 0) + return 0; + size_t return_value = 0; + if (start_line == 0) { + if (m_last_line != 0 && m_last_line != UINT32_MAX) + start_line = m_last_line + m_last_count; else - start_line = 1; - - if (m_last_file_sp.get() != file_sp.get()) - { - if (line == 0) - m_last_line = 0; - m_last_file_sp = file_sp; + start_line = 1; + } + + if (!m_default_set) { + FileSpec tmp_spec; + uint32_t tmp_line; + GetDefaultFileAndLine(tmp_spec, tmp_line); + } + + m_last_line = start_line; + m_last_count = count; + + if (m_last_file_sp.get()) { + const uint32_t end_line = start_line + count - 1; + for (uint32_t line = start_line; line <= end_line; ++line) { + if (!m_last_file_sp->LineIsValid(line)) { + m_last_line = UINT32_MAX; + break; + } + + char prefix[32] = ""; + if (bp_locs) { + uint32_t bp_count = bp_locs->NumLineEntriesWithLine(line); + + if (bp_count > 0) + ::snprintf(prefix, sizeof(prefix), "[%u] ", bp_count); + else + ::snprintf(prefix, sizeof(prefix), " "); + } + + return_value += + s->Printf("%s%2.2s %-4u\t", prefix, + line == curr_line ? current_line_cstr : "", line); + size_t this_line_size = m_last_file_sp->DisplaySourceLines( + line, line == curr_line ? column : 0, 0, 0, s); + if (column != 0 && line == curr_line && + should_show_stop_column_with_caret(m_debugger_wp.lock())) { + // Display caret cursor. + std::string src_line; + m_last_file_sp->GetLine(line, src_line); + return_value += s->Printf(" \t"); + // Insert a space for every non-tab character in the source line. + for (size_t i = 0; i + 1 < column && i < src_line.length(); ++i) + return_value += s->PutChar(src_line[i] == '\t' ? '\t' : ' '); + // Now add the caret. + return_value += s->Printf("^\n"); + } + if (this_line_size == 0) { + m_last_line = UINT32_MAX; + break; + } else + return_value += this_line_size; } - return DisplaySourceLinesWithLineNumbersUsingLastFile (start_line, count, line, current_line_cstr, s, bp_locs); + } + return return_value; } -size_t -SourceManager::DisplayMoreWithLineNumbers (Stream *s, - uint32_t count, - bool reverse, - const SymbolContextList *bp_locs) -{ - // If we get called before anybody has set a default file and line, then try to figure it out here. - const bool have_default_file_line = m_last_file_sp && m_last_line > 0; - if (!m_default_set) - { - FileSpec tmp_spec; - uint32_t tmp_line; - GetDefaultFileAndLine(tmp_spec, tmp_line); - } - - if (m_last_file_sp) - { - if (m_last_line == UINT32_MAX) - return 0; - - if (reverse && m_last_line == 1) - return 0; - - if (count > 0) - m_last_count = count; - else if (m_last_count == 0) - m_last_count = 10; - - if (m_last_line > 0) - { - if (reverse) - { - // If this is the first time we've done a reverse, then back up one more time so we end - // up showing the chunk before the last one we've shown: - if (m_last_line > m_last_count) - m_last_line -= m_last_count; - else - m_last_line = 1; - } - else if (have_default_file_line) - m_last_line += m_last_count; - } +size_t SourceManager::DisplaySourceLinesWithLineNumbers( + const FileSpec &file_spec, uint32_t line, uint32_t column, + uint32_t context_before, uint32_t context_after, + const char *current_line_cstr, Stream *s, + const SymbolContextList *bp_locs) { + FileSP file_sp(GetFile(file_spec)); + + uint32_t start_line; + uint32_t count = context_before + context_after + 1; + if (line > context_before) + start_line = line - context_before; + else + start_line = 1; + + if (m_last_file_sp.get() != file_sp.get()) { + if (line == 0) + m_last_line = 0; + m_last_file_sp = file_sp; + } + return DisplaySourceLinesWithLineNumbersUsingLastFile( + start_line, count, line, column, current_line_cstr, s, bp_locs); +} + +size_t SourceManager::DisplayMoreWithLineNumbers( + Stream *s, uint32_t count, bool reverse, const SymbolContextList *bp_locs) { + // If we get called before anybody has set a default file and line, then try + // to figure it out here. + const bool have_default_file_line = m_last_file_sp && m_last_line > 0; + if (!m_default_set) { + FileSpec tmp_spec; + uint32_t tmp_line; + GetDefaultFileAndLine(tmp_spec, tmp_line); + } + + if (m_last_file_sp) { + if (m_last_line == UINT32_MAX) + return 0; + + if (reverse && m_last_line == 1) + return 0; + + if (count > 0) + m_last_count = count; + else if (m_last_count == 0) + m_last_count = 10; + + if (m_last_line > 0) { + if (reverse) { + // If this is the first time we've done a reverse, then back up one more + // time so we end + // up showing the chunk before the last one we've shown: + if (m_last_line > m_last_count) + m_last_line -= m_last_count; else - m_last_line = 1; - - return DisplaySourceLinesWithLineNumbersUsingLastFile (m_last_line, m_last_count, UINT32_MAX, "", s, bp_locs); - } - return 0; + m_last_line = 1; + } else if (have_default_file_line) + m_last_line += m_last_count; + } else + m_last_line = 1; + + const uint32_t column = 0; + return DisplaySourceLinesWithLineNumbersUsingLastFile( + m_last_line, m_last_count, UINT32_MAX, column, "", s, bp_locs); + } + return 0; } -bool -SourceManager::SetDefaultFileAndLine (const FileSpec &file_spec, uint32_t line) -{ - FileSP old_file_sp = m_last_file_sp; - m_last_file_sp = GetFile (file_spec); - - m_default_set = true; - if (m_last_file_sp) - { - m_last_line = line; - return true; - } - else - { - m_last_file_sp = old_file_sp; - return false; - } +bool SourceManager::SetDefaultFileAndLine(const FileSpec &file_spec, + uint32_t line) { + FileSP old_file_sp = m_last_file_sp; + m_last_file_sp = GetFile(file_spec); + + m_default_set = true; + if (m_last_file_sp) { + m_last_line = line; + return true; + } else { + m_last_file_sp = old_file_sp; + return false; + } } -bool -SourceManager::GetDefaultFileAndLine (FileSpec &file_spec, uint32_t &line) -{ - if (m_last_file_sp) - { - file_spec = m_last_file_sp->GetFileSpec(); - line = m_last_line; - return true; - } - else if (!m_default_set) - { - TargetSP target_sp (m_target_wp.lock()); - - if (target_sp) - { - // If nobody has set the default file and line then try here. If there's no executable, then we - // will try again later when there is one. Otherwise, if we can't find it we won't look again, - // somebody will have to set it (for instance when we stop somewhere...) - Module *executable_ptr = target_sp->GetExecutableModulePointer(); - if (executable_ptr) - { - SymbolContextList sc_list; - ConstString main_name("main"); - bool symbols_okay = false; // Force it to be a debug symbol. - bool inlines_okay = true; - bool append = false; - size_t num_matches = executable_ptr->FindFunctions (main_name, - NULL, - lldb::eFunctionNameTypeBase, - inlines_okay, - symbols_okay, - append, - sc_list); - for (size_t idx = 0; idx < num_matches; idx++) - { - SymbolContext sc; - sc_list.GetContextAtIndex(idx, sc); - if (sc.function) - { - lldb_private::LineEntry line_entry; - if (sc.function->GetAddressRange().GetBaseAddress().CalculateSymbolContextLineEntry (line_entry)) - { - SetDefaultFileAndLine (line_entry.file, - line_entry.line); - file_spec = m_last_file_sp->GetFileSpec(); - line = m_last_line; - return true; - } - } - } +bool SourceManager::GetDefaultFileAndLine(FileSpec &file_spec, uint32_t &line) { + if (m_last_file_sp) { + file_spec = m_last_file_sp->GetFileSpec(); + line = m_last_line; + return true; + } else if (!m_default_set) { + TargetSP target_sp(m_target_wp.lock()); + + if (target_sp) { + // If nobody has set the default file and line then try here. If there's + // no executable, then we + // will try again later when there is one. Otherwise, if we can't find it + // we won't look again, + // somebody will have to set it (for instance when we stop somewhere...) + Module *executable_ptr = target_sp->GetExecutableModulePointer(); + if (executable_ptr) { + SymbolContextList sc_list; + ConstString main_name("main"); + bool symbols_okay = false; // Force it to be a debug symbol. + bool inlines_okay = true; + bool append = false; + size_t num_matches = executable_ptr->FindFunctions( + main_name, NULL, lldb::eFunctionNameTypeBase, inlines_okay, + symbols_okay, append, sc_list); + for (size_t idx = 0; idx < num_matches; idx++) { + SymbolContext sc; + sc_list.GetContextAtIndex(idx, sc); + if (sc.function) { + lldb_private::LineEntry line_entry; + if (sc.function->GetAddressRange() + .GetBaseAddress() + .CalculateSymbolContextLineEntry(line_entry)) { + SetDefaultFileAndLine(line_entry.file, line_entry.line); + file_spec = m_last_file_sp->GetFileSpec(); + line = m_last_line; + return true; } + } } + } } - return false; + } + return false; } -void -SourceManager::FindLinesMatchingRegex (FileSpec &file_spec, - RegularExpression& regex, - uint32_t start_line, - uint32_t end_line, - std::vector<uint32_t> &match_lines) -{ - match_lines.clear(); - FileSP file_sp = GetFile (file_spec); - if (!file_sp) - return; - return file_sp->FindLinesMatchingRegex (regex, start_line, end_line, match_lines); +void SourceManager::FindLinesMatchingRegex(FileSpec &file_spec, + RegularExpression ®ex, + uint32_t start_line, + uint32_t end_line, + std::vector<uint32_t> &match_lines) { + match_lines.clear(); + FileSP file_sp = GetFile(file_spec); + if (!file_sp) + return; + return file_sp->FindLinesMatchingRegex(regex, start_line, end_line, + match_lines); } -SourceManager::File::File(const FileSpec &file_spec, Target *target) : - m_file_spec_orig (file_spec), - m_file_spec(file_spec), - m_mod_time (file_spec.GetModificationTime()), - m_source_map_mod_id (0), - m_data_sp(), - m_offsets() -{ - if (!m_mod_time.IsValid()) - { - if (target) - { - m_source_map_mod_id = target->GetSourcePathMap().GetModificationID(); - - if (!file_spec.GetDirectory() && file_spec.GetFilename()) - { - // If this is just a file name, lets see if we can find it in the target: - bool check_inlines = false; - SymbolContextList sc_list; - size_t num_matches = target->GetImages().ResolveSymbolContextForFilePath (file_spec.GetFilename().AsCString(), - 0, - check_inlines, - lldb::eSymbolContextModule | lldb::eSymbolContextCompUnit, - sc_list); - bool got_multiple = false; - if (num_matches != 0) - { - if (num_matches > 1) - { - SymbolContext sc; - FileSpec *test_cu_spec = NULL; - - for (unsigned i = 0; i < num_matches; i++) - { - sc_list.GetContextAtIndex(i, sc); - if (sc.comp_unit) - { - if (test_cu_spec) - { - if (test_cu_spec != static_cast<FileSpec *> (sc.comp_unit)) - got_multiple = true; - break; - } - else - test_cu_spec = sc.comp_unit; - } - } - } - if (!got_multiple) - { - SymbolContext sc; - sc_list.GetContextAtIndex (0, sc); - m_file_spec = sc.comp_unit; - m_mod_time = m_file_spec.GetModificationTime(); - } - } - } - // Try remapping if m_file_spec does not correspond to an existing file. - if (!m_file_spec.Exists()) - { - FileSpec new_file_spec; - // Check target specific source remappings first, then fall back to - // modules objects can have individual path remappings that were detected - // when the debug info for a module was found. - // then - if (target->GetSourcePathMap().FindFile (m_file_spec, new_file_spec) || - target->GetImages().FindSourceFile (m_file_spec, new_file_spec)) - { - m_file_spec = new_file_spec; - m_mod_time = m_file_spec.GetModificationTime(); - } +SourceManager::File::File(const FileSpec &file_spec, + lldb::DebuggerSP debugger_sp) + : m_file_spec_orig(file_spec), m_file_spec(file_spec), + m_mod_time(FileSystem::GetModificationTime(file_spec)), + m_debugger_wp(debugger_sp) { + CommonInitializer(file_spec, nullptr); +} + +SourceManager::File::File(const FileSpec &file_spec, Target *target) + : m_file_spec_orig(file_spec), m_file_spec(file_spec), + m_mod_time(FileSystem::GetModificationTime(file_spec)), + m_debugger_wp(target ? target->GetDebugger().shared_from_this() + : DebuggerSP()) { + CommonInitializer(file_spec, target); +} + +void SourceManager::File::CommonInitializer(const FileSpec &file_spec, + Target *target) { + if (m_mod_time == llvm::sys::TimePoint<>()) { + if (target) { + m_source_map_mod_id = target->GetSourcePathMap().GetModificationID(); + + if (!file_spec.GetDirectory() && file_spec.GetFilename()) { + // If this is just a file name, lets see if we can find it in the + // target: + bool check_inlines = false; + SymbolContextList sc_list; + size_t num_matches = + target->GetImages().ResolveSymbolContextForFilePath( + file_spec.GetFilename().AsCString(), 0, check_inlines, + lldb::eSymbolContextModule | lldb::eSymbolContextCompUnit, + sc_list); + bool got_multiple = false; + if (num_matches != 0) { + if (num_matches > 1) { + SymbolContext sc; + FileSpec *test_cu_spec = NULL; + + for (unsigned i = 0; i < num_matches; i++) { + sc_list.GetContextAtIndex(i, sc); + if (sc.comp_unit) { + if (test_cu_spec) { + if (test_cu_spec != static_cast<FileSpec *>(sc.comp_unit)) + got_multiple = true; + break; + } else + test_cu_spec = sc.comp_unit; + } } + } + if (!got_multiple) { + SymbolContext sc; + sc_list.GetContextAtIndex(0, sc); + m_file_spec = sc.comp_unit; + m_mod_time = FileSystem::GetModificationTime(m_file_spec); + } + } + } + // Try remapping if m_file_spec does not correspond to an existing file. + if (!m_file_spec.Exists()) { + FileSpec new_file_spec; + // Check target specific source remappings first, then fall back to + // modules objects can have individual path remappings that were + // detected + // when the debug info for a module was found. + // then + if (target->GetSourcePathMap().FindFile(m_file_spec, new_file_spec) || + target->GetImages().FindSourceFile(m_file_spec, new_file_spec)) { + m_file_spec = new_file_spec; + m_mod_time = FileSystem::GetModificationTime(m_file_spec); } + } } - - if (m_mod_time.IsValid()) - m_data_sp = m_file_spec.ReadFileContents (); -} + } -SourceManager::File::~File() -{ + if (m_mod_time != llvm::sys::TimePoint<>()) + m_data_sp = m_file_spec.ReadFileContents(); } -uint32_t -SourceManager::File::GetLineOffset (uint32_t line) -{ - if (line == 0) - return UINT32_MAX; +uint32_t SourceManager::File::GetLineOffset(uint32_t line) { + if (line == 0) + return UINT32_MAX; - if (line == 1) - return 0; + if (line == 1) + return 0; - if (CalculateLineOffsets (line)) - { - if (line < m_offsets.size()) - return m_offsets[line - 1]; // yes we want "line - 1" in the index - } - return UINT32_MAX; + if (CalculateLineOffsets(line)) { + if (line < m_offsets.size()) + return m_offsets[line - 1]; // yes we want "line - 1" in the index + } + return UINT32_MAX; } -uint32_t -SourceManager::File::GetNumLines () -{ - CalculateLineOffsets(); - return m_offsets.size(); +uint32_t SourceManager::File::GetNumLines() { + CalculateLineOffsets(); + return m_offsets.size(); } -const char * -SourceManager::File::PeekLineData (uint32_t line) -{ - if (!LineIsValid(line)) - return NULL; - - size_t line_offset = GetLineOffset (line); - if (line_offset < m_data_sp->GetByteSize()) - return (const char *)m_data_sp->GetBytes() + line_offset; +const char *SourceManager::File::PeekLineData(uint32_t line) { + if (!LineIsValid(line)) return NULL; + + size_t line_offset = GetLineOffset(line); + if (line_offset < m_data_sp->GetByteSize()) + return (const char *)m_data_sp->GetBytes() + line_offset; + return NULL; } -uint32_t -SourceManager::File::GetLineLength (uint32_t line, bool include_newline_chars) -{ - if (!LineIsValid(line)) - return false; - - size_t start_offset = GetLineOffset (line); - size_t end_offset = GetLineOffset (line + 1); - if (end_offset == UINT32_MAX) - end_offset = m_data_sp->GetByteSize(); - - if (end_offset > start_offset) - { - uint32_t length = end_offset - start_offset; - if (include_newline_chars == false) - { - const char *line_start = (const char *)m_data_sp->GetBytes() + start_offset; - while (length > 0) - { - const char last_char = line_start[length-1]; - if ((last_char == '\r') || (last_char == '\n')) - --length; - else - break; - } - } - return length; +uint32_t SourceManager::File::GetLineLength(uint32_t line, + bool include_newline_chars) { + if (!LineIsValid(line)) + return false; + + size_t start_offset = GetLineOffset(line); + size_t end_offset = GetLineOffset(line + 1); + if (end_offset == UINT32_MAX) + end_offset = m_data_sp->GetByteSize(); + + if (end_offset > start_offset) { + uint32_t length = end_offset - start_offset; + if (include_newline_chars == false) { + const char *line_start = + (const char *)m_data_sp->GetBytes() + start_offset; + while (length > 0) { + const char last_char = line_start[length - 1]; + if ((last_char == '\r') || (last_char == '\n')) + --length; + else + break; + } } - return 0; + return length; + } + return 0; } -bool -SourceManager::File::LineIsValid (uint32_t line) -{ - if (line == 0) - return false; - - if (CalculateLineOffsets (line)) - return line < m_offsets.size(); +bool SourceManager::File::LineIsValid(uint32_t line) { + if (line == 0) return false; + + if (CalculateLineOffsets(line)) + return line < m_offsets.size(); + return false; } -void -SourceManager::File::UpdateIfNeeded () -{ - // TODO: use host API to sign up for file modifications to anything in our - // source cache and only update when we determine a file has been updated. - // For now we check each time we want to display info for the file. - TimeValue curr_mod_time (m_file_spec.GetModificationTime()); - - if (curr_mod_time.IsValid() && m_mod_time != curr_mod_time) - { - m_mod_time = curr_mod_time; - m_data_sp = m_file_spec.ReadFileContents (); - m_offsets.clear(); - } +void SourceManager::File::UpdateIfNeeded() { + // TODO: use host API to sign up for file modifications to anything in our + // source cache and only update when we determine a file has been updated. + // For now we check each time we want to display info for the file. + auto curr_mod_time = FileSystem::GetModificationTime(m_file_spec); + + if (curr_mod_time != llvm::sys::TimePoint<>() && + m_mod_time != curr_mod_time) { + m_mod_time = curr_mod_time; + m_data_sp = m_file_spec.ReadFileContents(); + m_offsets.clear(); + } } -size_t -SourceManager::File::DisplaySourceLines (uint32_t line, uint32_t context_before, uint32_t context_after, Stream *s) -{ - // Sanity check m_data_sp before proceeding. - if (!m_data_sp) - return 0; - - const uint32_t start_line = line <= context_before ? 1 : line - context_before; - const uint32_t start_line_offset = GetLineOffset (start_line); - if (start_line_offset != UINT32_MAX) - { - const uint32_t end_line = line + context_after; - uint32_t end_line_offset = GetLineOffset (end_line + 1); - if (end_line_offset == UINT32_MAX) - end_line_offset = m_data_sp->GetByteSize(); - - assert (start_line_offset <= end_line_offset); - size_t bytes_written = 0; - if (start_line_offset < end_line_offset) - { - size_t count = end_line_offset - start_line_offset; - const uint8_t *cstr = m_data_sp->GetBytes() + start_line_offset; - bytes_written = s->Write(cstr, count); - if (!is_newline_char(cstr[count-1])) - bytes_written += s->EOL(); +size_t SourceManager::File::DisplaySourceLines(uint32_t line, uint32_t column, + uint32_t context_before, + uint32_t context_after, + Stream *s) { + // Nothing to write if there's no stream. + if (!s) + return 0; + + // Sanity check m_data_sp before proceeding. + if (!m_data_sp) + return 0; + + const uint32_t start_line = + line <= context_before ? 1 : line - context_before; + const uint32_t start_line_offset = GetLineOffset(start_line); + if (start_line_offset != UINT32_MAX) { + const uint32_t end_line = line + context_after; + uint32_t end_line_offset = GetLineOffset(end_line + 1); + if (end_line_offset == UINT32_MAX) + end_line_offset = m_data_sp->GetByteSize(); + + assert(start_line_offset <= end_line_offset); + size_t bytes_written = 0; + if (start_line_offset < end_line_offset) { + size_t count = end_line_offset - start_line_offset; + const uint8_t *cstr = m_data_sp->GetBytes() + start_line_offset; + + bool displayed_line = false; + + if (column && (column < count)) { + auto debugger_sp = m_debugger_wp.lock(); + if (should_show_stop_column_with_ansi(debugger_sp) && debugger_sp) { + // Check if we have any ANSI codes with which to mark this column. + // If not, no need to do this work. + auto ansi_prefix_entry = debugger_sp->GetStopShowColumnAnsiPrefix(); + auto ansi_suffix_entry = debugger_sp->GetStopShowColumnAnsiSuffix(); + + // We only bother breaking up the line to format the marked column if + // there is any marking specified on both sides of the marked column. + // In ANSI-terminal-sequence land, there must be a post if there is a + // pre format, and vice versa. + if (ansi_prefix_entry && ansi_suffix_entry) { + // Mark the current column with the desired escape sequence for + // formatting the column (e.g. underline, inverse, etc.) + + // First print the part before the column to mark. + bytes_written = s->Write(cstr, column - 1); + + // Write the pre escape sequence. + const SymbolContext *sc = nullptr; + const ExecutionContext *exe_ctx = nullptr; + const Address addr = LLDB_INVALID_ADDRESS; + ValueObject *valobj = nullptr; + const bool function_changed = false; + const bool initial_function = false; + + FormatEntity::Format(*ansi_prefix_entry, *s, sc, exe_ctx, &addr, + valobj, function_changed, initial_function); + + // Write the marked column. + bytes_written += s->Write(cstr + column - 1, 1); + + // Write the post escape sequence. + FormatEntity::Format(*ansi_suffix_entry, *s, sc, exe_ctx, &addr, + valobj, function_changed, initial_function); + + // And finish up with the rest of the line. + bytes_written += s->Write(cstr + column, count - column); + + // Keep track of the fact that we just wrote the line. + displayed_line = true; + } } - return bytes_written; + } + + // If we didn't end up displaying the line with ANSI codes for whatever + // reason, display it now sans codes. + if (!displayed_line) + bytes_written = s->Write(cstr, count); + + // Ensure we get an end of line character one way or another. + if (!is_newline_char(cstr[count - 1])) + bytes_written += s->EOL(); } - return 0; + return bytes_written; + } + return 0; } -void -SourceManager::File::FindLinesMatchingRegex (RegularExpression& regex, uint32_t start_line, uint32_t end_line, std::vector<uint32_t> &match_lines) -{ - match_lines.clear(); - - if (!LineIsValid(start_line) || (end_line != UINT32_MAX && !LineIsValid(end_line))) - return; - if (start_line > end_line) - return; - - for (uint32_t line_no = start_line; line_no < end_line; line_no++) - { - std::string buffer; - if (!GetLine (line_no, buffer)) - break; - if (regex.Execute(buffer.c_str())) - { - match_lines.push_back(line_no); - } +void SourceManager::File::FindLinesMatchingRegex( + RegularExpression ®ex, uint32_t start_line, uint32_t end_line, + std::vector<uint32_t> &match_lines) { + match_lines.clear(); + + if (!LineIsValid(start_line) || + (end_line != UINT32_MAX && !LineIsValid(end_line))) + return; + if (start_line > end_line) + return; + + for (uint32_t line_no = start_line; line_no < end_line; line_no++) { + std::string buffer; + if (!GetLine(line_no, buffer)) + break; + if (regex.Execute(buffer)) { + match_lines.push_back(line_no); } + } } -bool -SourceManager::File::FileSpecMatches (const FileSpec &file_spec) -{ - return FileSpec::Equal (m_file_spec, file_spec, false); +bool SourceManager::File::FileSpecMatches(const FileSpec &file_spec) { + return FileSpec::Equal(m_file_spec, file_spec, false); } -bool -lldb_private::operator== (const SourceManager::File &lhs, const SourceManager::File &rhs) -{ - if (lhs.m_file_spec == rhs.m_file_spec) - { - if (lhs.m_mod_time.IsValid()) - { - if (rhs.m_mod_time.IsValid()) - return lhs.m_mod_time == rhs.m_mod_time; - else - return false; - } - else if (rhs.m_mod_time.IsValid()) - return false; - else - return true; - } - else - return false; +bool lldb_private::operator==(const SourceManager::File &lhs, + const SourceManager::File &rhs) { + if (lhs.m_file_spec != rhs.m_file_spec) + return false; + return lhs.m_mod_time == rhs.m_mod_time; } -bool -SourceManager::File::CalculateLineOffsets (uint32_t line) -{ - line = UINT32_MAX; // TODO: take this line out when we support partial indexing - if (line == UINT32_MAX) - { - // Already done? - if (!m_offsets.empty() && m_offsets[0] == UINT32_MAX) - return true; - - if (m_offsets.empty()) - { - if (m_data_sp.get() == NULL) - return false; - - const char *start = (char *)m_data_sp->GetBytes(); - if (start) - { - const char *end = start + m_data_sp->GetByteSize(); - - // Calculate all line offsets from scratch - - // Push a 1 at index zero to indicate the file has been completely indexed. - m_offsets.push_back(UINT32_MAX); - const char *s; - for (s = start; s < end; ++s) - { - char curr_ch = *s; - if (is_newline_char (curr_ch)) - { - if (s + 1 < end) - { - char next_ch = s[1]; - if (is_newline_char (next_ch)) - { - if (curr_ch != next_ch) - ++s; - } - } - m_offsets.push_back(s + 1 - start); - } - } - if (!m_offsets.empty()) - { - if (m_offsets.back() < end - start) - m_offsets.push_back(end - start); - } - return true; +bool SourceManager::File::CalculateLineOffsets(uint32_t line) { + line = + UINT32_MAX; // TODO: take this line out when we support partial indexing + if (line == UINT32_MAX) { + // Already done? + if (!m_offsets.empty() && m_offsets[0] == UINT32_MAX) + return true; + + if (m_offsets.empty()) { + if (m_data_sp.get() == NULL) + return false; + + const char *start = (char *)m_data_sp->GetBytes(); + if (start) { + const char *end = start + m_data_sp->GetByteSize(); + + // Calculate all line offsets from scratch + + // Push a 1 at index zero to indicate the file has been completely + // indexed. + m_offsets.push_back(UINT32_MAX); + const char *s; + for (s = start; s < end; ++s) { + char curr_ch = *s; + if (is_newline_char(curr_ch)) { + if (s + 1 < end) { + char next_ch = s[1]; + if (is_newline_char(next_ch)) { + if (curr_ch != next_ch) + ++s; + } } + m_offsets.push_back(s + 1 - start); + } } - else - { - // Some lines have been populated, start where we last left off - assert("Not implemented yet" && false); + if (!m_offsets.empty()) { + if (m_offsets.back() < size_t(end - start)) + m_offsets.push_back(end - start); } - - } - else - { - // Calculate all line offsets up to "line" - assert("Not implemented yet" && false); + return true; + } + } else { + // Some lines have been populated, start where we last left off + assert("Not implemented yet" && false); } - return false; + + } else { + // Calculate all line offsets up to "line" + assert("Not implemented yet" && false); + } + return false; } -bool -SourceManager::File::GetLine (uint32_t line_no, std::string &buffer) -{ - if (!LineIsValid(line_no)) - return false; +bool SourceManager::File::GetLine(uint32_t line_no, std::string &buffer) { + if (!LineIsValid(line_no)) + return false; - size_t start_offset = GetLineOffset (line_no); - size_t end_offset = GetLineOffset (line_no + 1); - if (end_offset == UINT32_MAX) - { - end_offset = m_data_sp->GetByteSize(); - } - buffer.assign((char *) m_data_sp->GetBytes() + start_offset, end_offset - start_offset); - - return true; -} + size_t start_offset = GetLineOffset(line_no); + size_t end_offset = GetLineOffset(line_no + 1); + if (end_offset == UINT32_MAX) { + end_offset = m_data_sp->GetByteSize(); + } + buffer.assign((char *)m_data_sp->GetBytes() + start_offset, + end_offset - start_offset); -void -SourceManager::SourceFileCache::AddSourceFile (const FileSP &file_sp) -{ - FileSpec file_spec; - FileCache::iterator pos = m_file_cache.find(file_spec); - if (pos == m_file_cache.end()) - m_file_cache[file_spec] = file_sp; - else - { - if (file_sp != pos->second) - m_file_cache[file_spec] = file_sp; - } + return true; } -SourceManager::FileSP -SourceManager::SourceFileCache::FindSourceFile (const FileSpec &file_spec) const -{ - FileSP file_sp; - FileCache::const_iterator pos = m_file_cache.find(file_spec); - if (pos != m_file_cache.end()) - file_sp = pos->second; - return file_sp; +void SourceManager::SourceFileCache::AddSourceFile(const FileSP &file_sp) { + FileSpec file_spec; + FileCache::iterator pos = m_file_cache.find(file_spec); + if (pos == m_file_cache.end()) + m_file_cache[file_spec] = file_sp; + else { + if (file_sp != pos->second) + m_file_cache[file_spec] = file_sp; + } } +SourceManager::FileSP SourceManager::SourceFileCache::FindSourceFile( + const FileSpec &file_spec) const { + FileSP file_sp; + FileCache::const_iterator pos = m_file_cache.find(file_spec); + if (pos != m_file_cache.end()) + file_sp = pos->second; + return file_sp; +} |