size_t
Disassembler::Disassemble
(
Debugger &debugger,
const ArchSpec &arch,
const ExecutionContext &exe_ctx,
SymbolContextList &sc_list,
uint32_t num_mixed_context_lines,
bool show_bytes,
Stream &strm
)
{
size_t success_count = 0;
const size_t count = sc_list.GetSize();
SymbolContext sc;
AddressRange range;
for (size_t i=0; i<count; ++i)
{
if (sc_list.GetContextAtIndex(i, sc) == false)
break;
if (sc.GetAddressRange(eSymbolContextFunction | eSymbolContextSymbol, range))
{
if (Disassemble (debugger, arch, exe_ctx, range, num_mixed_context_lines, show_bytes, strm))
{
++success_count;
strm.EOL();
}
}
}
return success_count;
}
size_t
Module::FindSymbolsWithNameAndType (const ConstString &name, SymbolType symbol_type, SymbolContextList &sc_list)
{
// No need to protect this call using m_mutex all other method calls are
// already thread safe.
Timer scoped_timer(__PRETTY_FUNCTION__,
"Module::FindSymbolsWithNameAndType (name = %s, type = %i)",
name.AsCString(),
symbol_type);
const size_t initial_size = sc_list.GetSize();
ObjectFile *objfile = GetObjectFile ();
if (objfile)
{
Symtab *symtab = objfile->GetSymtab();
if (symtab)
{
std::vector<uint32_t> symbol_indexes;
symtab->FindAllSymbolsWithNameAndType (name, symbol_type, symbol_indexes);
SymbolIndicesToSymbolContextList (symtab, symbol_indexes, sc_list);
}
}
return sc_list.GetSize() - initial_size;
}
size_t
ModuleList::FindFunctionSymbols (const ConstString &name,
uint32_t name_type_mask,
SymbolContextList& sc_list)
{
const size_t old_size = sc_list.GetSize();
if (name_type_mask & eFunctionNameTypeAuto)
{
ConstString lookup_name;
uint32_t lookup_name_type_mask = 0;
bool match_name_after_lookup = false;
Module::PrepareForFunctionNameLookup (name, name_type_mask,
eLanguageTypeUnknown, // TODO: add support
lookup_name,
lookup_name_type_mask,
match_name_after_lookup);
Mutex::Locker locker(m_modules_mutex);
collection::const_iterator pos, end = m_modules.end();
for (pos = m_modules.begin(); pos != end; ++pos)
{
(*pos)->FindFunctionSymbols (lookup_name,
lookup_name_type_mask,
sc_list);
}
if (match_name_after_lookup)
{
SymbolContext sc;
size_t i = old_size;
while (i < sc_list.GetSize())
{
if (sc_list.GetContextAtIndex(i, sc))
{
const char *func_name = sc.GetFunctionName().GetCString();
if (func_name != nullptr && strstr(func_name, name.GetCString()) == nullptr)
{
// Remove the current context
sc_list.RemoveContextAtIndex(i);
// Don't increment i and continue in the loop
continue;
}
}
++i;
}
}
}
else
{
Mutex::Locker locker(m_modules_mutex);
collection::const_iterator pos, end = m_modules.end();
for (pos = m_modules.begin(); pos != end; ++pos)
{
(*pos)->FindFunctionSymbols (name, name_type_mask, sc_list);
}
}
return sc_list.GetSize() - old_size;
}
ThreadPlanCallFunction::ThreadPlanCallFunction (Thread &thread,
Address &function,
ValueList &args,
bool stop_other_threads,
bool discard_on_error) :
ThreadPlan (ThreadPlan::eKindCallFunction, "Call function plan", thread, eVoteNoOpinion, eVoteNoOpinion),
m_valid (false),
m_stop_other_threads (stop_other_threads),
m_arg_addr (0),
m_args (&args),
m_process (thread.GetProcess()),
m_thread (thread)
{
SetOkayToDiscard (discard_on_error);
Process& process = thread.GetProcess();
Target& target = process.GetTarget();
const ABI *abi = process.GetABI();
if(!abi)
return;
lldb::addr_t spBelowRedZone = thread.GetRegisterContext()->GetSP() - abi->GetRedZoneSize();
SymbolContextList contexts;
SymbolContext context;
ModuleSP executableModuleSP (target.GetExecutableModule());
if (!executableModuleSP ||
!executableModuleSP->FindSymbolsWithNameAndType(ConstString ("start"), eSymbolTypeCode, contexts))
return;
contexts.GetContextAtIndex(0, context);
m_start_addr = context.symbol->GetValue();
lldb::addr_t StartLoadAddr = m_start_addr.GetLoadAddress(&process);
if(!thread.SaveFrameZeroState(m_register_backup))
return;
m_function_addr = function;
lldb::addr_t FunctionLoadAddr = m_function_addr.GetLoadAddress(&process);
if (!abi->PrepareNormalCall(thread,
spBelowRedZone,
FunctionLoadAddr,
StartLoadAddr,
*m_args))
return;
m_valid = true;
}
size_t
ModuleList::FindSymbolsMatchingRegExAndType (const RegularExpression ®ex,
lldb::SymbolType symbol_type,
SymbolContextList &sc_list,
bool append) const
{
Mutex::Locker locker(m_modules_mutex);
if (!append)
sc_list.Clear();
size_t initial_size = sc_list.GetSize();
collection::const_iterator pos, end = m_modules.end();
for (pos = m_modules.begin(); pos != end; ++pos)
(*pos)->FindSymbolsMatchingRegExAndType (regex, symbol_type, sc_list);
return sc_list.GetSize() - initial_size;
}
size_t
ModuleList::FindSymbolsWithNameAndType (const ConstString &name,
SymbolType symbol_type,
SymbolContextList &sc_list,
bool append) const
{
Mutex::Locker locker(m_modules_mutex);
if (!append)
sc_list.Clear();
size_t initial_size = sc_list.GetSize();
collection::const_iterator pos, end = m_modules.end();
for (pos = m_modules.begin(); pos != end; ++pos)
(*pos)->FindSymbolsWithNameAndType (name, symbol_type, sc_list);
return sc_list.GetSize() - initial_size;
}
uint32_t
SymbolFile::FindFunctions (const ConstString &name, const CompilerDeclContext *parent_decl_ctx, uint32_t name_type_mask, bool include_inlines, bool append, SymbolContextList& sc_list)
{
if (!append)
sc_list.Clear();
return 0;
}
uint32_t SymbolFile::FindFunctions(const RegularExpression ®ex,
bool include_inlines, bool append,
SymbolContextList &sc_list) {
if (!append)
sc_list.Clear();
return 0;
}
uint32_t
Module::FindFunctions (const ConstString &name,
const ClangNamespaceDecl *namespace_decl,
uint32_t name_type_mask,
bool include_symbols,
bool include_inlines,
bool append,
SymbolContextList& sc_list)
{
if (!append)
sc_list.Clear();
const uint32_t start_size = sc_list.GetSize();
// Find all the functions (not symbols, but debug information functions...
SymbolVendor *symbols = GetSymbolVendor ();
if (symbols)
symbols->FindFunctions(name, namespace_decl, name_type_mask, include_inlines, append, sc_list);
// Now check our symbol table for symbols that are code symbols if requested
if (include_symbols)
{
ObjectFile *objfile = GetObjectFile();
if (objfile)
{
Symtab *symtab = objfile->GetSymtab();
if (symtab)
{
std::vector<uint32_t> symbol_indexes;
symtab->FindAllSymbolsWithNameAndType (name, eSymbolTypeCode, Symtab::eDebugAny, Symtab::eVisibilityAny, symbol_indexes);
const uint32_t num_matches = symbol_indexes.size();
if (num_matches)
{
const bool merge_symbol_into_function = true;
SymbolContext sc(this);
for (uint32_t i=0; i<num_matches; i++)
{
sc.symbol = symtab->SymbolAtIndex(symbol_indexes[i]);
sc_list.AppendIfUnique (sc, merge_symbol_into_function);
}
}
}
}
}
return sc_list.GetSize() - start_size;
}
size_t
ModuleList::FindCompileUnits (const FileSpec &path,
bool append,
SymbolContextList &sc_list) const
{
if (!append)
sc_list.Clear();
Mutex::Locker locker(m_modules_mutex);
collection::const_iterator pos, end = m_modules.end();
for (pos = m_modules.begin(); pos != end; ++pos)
{
(*pos)->FindCompileUnits (path, true, sc_list);
}
return sc_list.GetSize();
}
size_t
Disassembler::Disassemble
(
Debugger &debugger,
const ArchSpec &arch,
const char *plugin_name,
const char *flavor,
const ExecutionContext &exe_ctx,
SymbolContextList &sc_list,
uint32_t num_instructions,
uint32_t num_mixed_context_lines,
uint32_t options,
Stream &strm
)
{
size_t success_count = 0;
const size_t count = sc_list.GetSize();
SymbolContext sc;
AddressRange range;
const uint32_t scope = eSymbolContextBlock | eSymbolContextFunction | eSymbolContextSymbol;
const bool use_inline_block_range = true;
for (size_t i=0; i<count; ++i)
{
if (sc_list.GetContextAtIndex(i, sc) == false)
break;
for (uint32_t range_idx = 0; sc.GetAddressRange(scope, range_idx, use_inline_block_range, range); ++range_idx)
{
if (Disassemble (debugger,
arch,
plugin_name,
flavor,
exe_ctx,
range,
num_instructions,
num_mixed_context_lines,
options,
strm))
{
++success_count;
strm.EOL();
}
}
}
return success_count;
}
size_t
ModuleList::FindFunctions(const RegularExpression &name,
bool include_symbols,
bool include_inlines,
bool append,
SymbolContextList& sc_list)
{
const size_t old_size = sc_list.GetSize();
Mutex::Locker locker(m_modules_mutex);
collection::const_iterator pos, end = m_modules.end();
for (pos = m_modules.begin(); pos != end; ++pos)
{
(*pos)->FindFunctions (name, include_symbols, include_inlines, append, sc_list);
}
return sc_list.GetSize() - old_size;
}
bool ContainsCompileUnit(const SymbolContextList &sc_list,
const FileSpec &spec) const {
for (size_t i = 0; i < sc_list.GetSize(); ++i) {
const SymbolContext &sc = sc_list[i];
if (FileSpecMatchesAsBaseOrFull(*sc.comp_unit, spec))
return true;
}
return false;
}
bool
lldb_private::operator== (const SymbolContextList& lhs, const SymbolContextList& rhs)
{
const uint32_t size = lhs.GetSize();
if (size != rhs.GetSize())
return false;
SymbolContext lhs_sc;
SymbolContext rhs_sc;
for (uint32_t i=0; i<size; ++i)
{
lhs.GetContextAtIndex(i, lhs_sc);
rhs.GetContextAtIndex(i, rhs_sc);
if (lhs_sc != rhs_sc)
return false;
}
return true;
}
uint32_t
ModuleList::FindFunctions (const ConstString &name,
uint32_t name_type_mask,
bool include_symbols,
bool append,
SymbolContextList &sc_list)
{
if (!append)
sc_list.Clear();
Mutex::Locker locker(m_modules_mutex);
collection::const_iterator pos, end = m_modules.end();
for (pos = m_modules.begin(); pos != end; ++pos)
{
(*pos)->FindFunctions (name, NULL, name_type_mask, include_symbols, true, sc_list);
}
return sc_list.GetSize();
}
uint32_t
Module::FindFunctions (const RegularExpression& regex,
bool include_symbols,
bool include_inlines,
bool append,
SymbolContextList& sc_list)
{
if (!append)
sc_list.Clear();
const uint32_t start_size = sc_list.GetSize();
SymbolVendor *symbols = GetSymbolVendor ();
if (symbols)
symbols->FindFunctions(regex, include_inlines, append, sc_list);
// Now check our symbol table for symbols that are code symbols if requested
if (include_symbols)
{
ObjectFile *objfile = GetObjectFile();
if (objfile)
{
Symtab *symtab = objfile->GetSymtab();
if (symtab)
{
std::vector<uint32_t> symbol_indexes;
symtab->AppendSymbolIndexesMatchingRegExAndType (regex, eSymbolTypeCode, Symtab::eDebugAny, Symtab::eVisibilityAny, symbol_indexes);
const uint32_t num_matches = symbol_indexes.size();
if (num_matches)
{
const bool merge_symbol_into_function = true;
SymbolContext sc(this);
for (uint32_t i=0; i<num_matches; i++)
{
sc.symbol = symtab->SymbolAtIndex(symbol_indexes[i]);
sc_list.AppendIfUnique (sc, merge_symbol_into_function);
}
}
}
}
}
return sc_list.GetSize() - start_size;
}
uint32_t
Module::ResolveSymbolContextsForFileSpec (const FileSpec &file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list)
{
Mutex::Locker locker (m_mutex);
Timer scoped_timer(__PRETTY_FUNCTION__,
"Module::ResolveSymbolContextForFilePath (%s%s%s:%u, check_inlines = %s, resolve_scope = 0x%8.8x)",
file_spec.GetDirectory().AsCString(""),
file_spec.GetDirectory() ? "/" : "",
file_spec.GetFilename().AsCString(""),
line,
check_inlines ? "yes" : "no",
resolve_scope);
const uint32_t initial_count = sc_list.GetSize();
SymbolVendor *symbols = GetSymbolVendor ();
if (symbols)
symbols->ResolveSymbolContext (file_spec, line, check_inlines, resolve_scope, sc_list);
return sc_list.GetSize() - initial_count;
}
Address *
AppleObjCRuntime::GetPrintForDebuggerAddr()
{
if (!m_PrintForDebugger_addr.get())
{
const ModuleList &modules = m_process->GetTarget().GetImages();
SymbolContextList contexts;
SymbolContext context;
if ((!modules.FindSymbolsWithNameAndType(ConstString ("_NSPrintForDebugger"), eSymbolTypeCode, contexts)) &&
(!modules.FindSymbolsWithNameAndType(ConstString ("_CFPrintForDebugger"), eSymbolTypeCode, contexts)))
return NULL;
contexts.GetContextAtIndex(0, context);
m_PrintForDebugger_addr.reset(new Address(context.symbol->GetAddress()));
}
return m_PrintForDebugger_addr.get();
}
uint32_t
Module::FindCompileUnits (const FileSpec &path,
bool append,
SymbolContextList &sc_list)
{
if (!append)
sc_list.Clear();
const uint32_t start_size = sc_list.GetSize();
const uint32_t num_compile_units = GetNumCompileUnits();
SymbolContext sc;
sc.module_sp = this;
const bool compare_directory = path.GetDirectory();
for (uint32_t i=0; i<num_compile_units; ++i)
{
sc.comp_unit = GetCompileUnitAtIndex(i).get();
if (FileSpec::Equal (*sc.comp_unit, path, compare_directory))
sc_list.Append(sc);
}
return sc_list.GetSize() - start_size;
}
uint32_t
ModuleList::ResolveSymbolContextsForFileSpec (const FileSpec &file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list) const
{
Mutex::Locker locker(m_modules_mutex);
collection::const_iterator pos, end = m_modules.end();
for (pos = m_modules.begin(); pos != end; ++pos)
{
(*pos)->ResolveSymbolContextsForFileSpec (file_spec, line, check_inlines, resolve_scope, sc_list);
}
return sc_list.GetSize();
}
void
BreakpointResolverName::LookupInfo::Prune (SymbolContextList &sc_list, size_t start_idx) const
{
if (match_name_after_lookup && name)
{
SymbolContext sc;
size_t i = start_idx;
while (i < sc_list.GetSize())
{
if (!sc_list.GetContextAtIndex(i, sc))
break;
ConstString full_name (sc.GetFunctionName());
if (full_name && ::strstr(full_name.GetCString(), name.GetCString()) == NULL)
{
sc_list.RemoveContextAtIndex(i);
}
else
{
++i;
}
}
}
}
size_t
Module::FindSymbolsMatchingRegExAndType (const RegularExpression ®ex, SymbolType symbol_type, SymbolContextList &sc_list)
{
// No need to protect this call using m_mutex all other method calls are
// already thread safe.
Timer scoped_timer(__PRETTY_FUNCTION__,
"Module::FindSymbolsMatchingRegExAndType (regex = %s, type = %i)",
regex.GetText(),
symbol_type);
const size_t initial_size = sc_list.GetSize();
ObjectFile *objfile = GetObjectFile ();
if (objfile)
{
Symtab *symtab = objfile->GetSymtab();
if (symtab)
{
std::vector<uint32_t> symbol_indexes;
symtab->FindAllSymbolsMatchingRexExAndType (regex, symbol_type, Symtab::eDebugAny, Symtab::eVisibilityAny, symbol_indexes);
SymbolIndicesToSymbolContextList (symtab, symbol_indexes, sc_list);
}
}
return sc_list.GetSize() - initial_size;
}
void Symtab::SymbolIndicesToSymbolContextList(
std::vector<uint32_t> &symbol_indexes, SymbolContextList &sc_list) {
// No need to protect this call using m_mutex all other method calls are
// already thread safe.
const bool merge_symbol_into_function = true;
size_t num_indices = symbol_indexes.size();
if (num_indices > 0) {
SymbolContext sc;
sc.module_sp = m_objfile->GetModule();
for (size_t i = 0; i < num_indices; i++) {
sc.symbol = SymbolAtIndex(symbol_indexes[i]);
if (sc.symbol)
sc_list.AppendIfUnique(sc, merge_symbol_into_function);
}
}
}
void
Module::SymbolIndicesToSymbolContextList (Symtab *symtab, std::vector<uint32_t> &symbol_indexes, SymbolContextList &sc_list)
{
// No need to protect this call using m_mutex all other method calls are
// already thread safe.
size_t num_indices = symbol_indexes.size();
if (num_indices > 0)
{
SymbolContext sc;
CalculateSymbolContext (&sc);
for (size_t i = 0; i < num_indices; i++)
{
sc.symbol = symtab->SymbolAtIndex (symbol_indexes[i]);
if (sc.symbol)
sc_list.Append (sc);
}
}
}
void
BreakpointResolver::SetSCMatchesByLine (SearchFilter &filter, SymbolContextList &sc_list, bool skip_prologue, const char *log_ident)
{
Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS));
while (sc_list.GetSize() > 0)
{
SymbolContextList tmp_sc_list;
unsigned current_idx = 0;
SymbolContext sc;
bool first_entry = true;
FileSpec match_file_spec;
FileSpec match_original_file_spec;
uint32_t closest_line_number = UINT32_MAX;
// Pull out the first entry, and all the others that match its file spec, and stuff them in the tmp list.
while (current_idx < sc_list.GetSize())
{
bool matches;
sc_list.GetContextAtIndex (current_idx, sc);
if (first_entry)
{
match_file_spec = sc.line_entry.file;
match_original_file_spec = sc.line_entry.original_file;
matches = true;
first_entry = false;
}
else
matches = ((sc.line_entry.file == match_file_spec) ||
(sc.line_entry.original_file == match_original_file_spec));
if (matches)
{
tmp_sc_list.Append (sc);
sc_list.RemoveContextAtIndex(current_idx);
// ResolveSymbolContext will always return a number that is >= the line number you pass in.
// So the smaller line number is always better.
if (sc.line_entry.line < closest_line_number)
closest_line_number = sc.line_entry.line;
}
else
current_idx++;
}
// Okay, we've found the closest line number match, now throw away all the others:
current_idx = 0;
while (current_idx < tmp_sc_list.GetSize())
{
if (tmp_sc_list.GetContextAtIndex(current_idx, sc))
{
if (sc.line_entry.line != closest_line_number)
tmp_sc_list.RemoveContextAtIndex(current_idx);
else
current_idx++;
}
}
// Next go through and see if there are line table entries that are contiguous, and if so keep only the
// first of the contiguous range:
current_idx = 0;
std::map<Block *, lldb::addr_t> blocks_with_breakpoints;
while (current_idx < tmp_sc_list.GetSize())
{
if (tmp_sc_list.GetContextAtIndex(current_idx, sc))
{
if (blocks_with_breakpoints.find (sc.block) != blocks_with_breakpoints.end())
tmp_sc_list.RemoveContextAtIndex(current_idx);
else
{
blocks_with_breakpoints.insert (std::pair<Block *, lldb::addr_t>(sc.block, sc.line_entry.range.GetBaseAddress().GetFileAddress()));
current_idx++;
}
}
}
// and make breakpoints out of the closest line number match.
uint32_t tmp_sc_list_size = tmp_sc_list.GetSize();
for (uint32_t i = 0; i < tmp_sc_list_size; i++)
{
if (tmp_sc_list.GetContextAtIndex(i, sc))
{
Address line_start = sc.line_entry.range.GetBaseAddress();
if (line_start.IsValid())
{
if (filter.AddressPasses(line_start))
{
// If the line number is before the prologue end, move it there...
bool skipped_prologue = false;
if (skip_prologue)
{
if (sc.function)
{
Address prologue_addr(sc.function->GetAddressRange().GetBaseAddress());
if (prologue_addr.IsValid() && (line_start == prologue_addr))
{
const uint32_t prologue_byte_size = sc.function->GetPrologueByteSize();
if (prologue_byte_size)
{
prologue_addr.Slide(prologue_byte_size);
if (filter.AddressPasses(prologue_addr))
{
skipped_prologue = true;
line_start = prologue_addr;
}
}
}
}
}
BreakpointLocationSP bp_loc_sp (AddLocation(line_start));
if (log && bp_loc_sp && !m_breakpoint->IsInternal())
{
StreamString s;
bp_loc_sp->GetDescription (&s, lldb::eDescriptionLevelVerbose);
log->Printf ("Added location (skipped prologue: %s): %s \n", skipped_prologue ? "yes" : "no", s.GetData());
}
}
else if (log)
{
log->Printf ("Breakpoint %s at file address 0x%" PRIx64 " didn't pass the filter.\n",
log_ident ? log_ident : "",
line_start.GetFileAddress());
}
}
else
{
if (log)
log->Printf ("error: Unable to set breakpoint %s at file address 0x%" PRIx64 "\n",
log_ident ? log_ident : "",
line_start.GetFileAddress());
}
}
}
}
}
uint32_t
CompileUnit::ResolveSymbolContext
(
const FileSpec& file_spec,
uint32_t line,
bool check_inlines,
bool exact,
uint32_t resolve_scope,
SymbolContextList &sc_list
)
{
// First find all of the file indexes that match our "file_spec". If
// "file_spec" has an empty directory, then only compare the basenames
// when finding file indexes
std::vector<uint32_t> file_indexes;
bool file_spec_matches_cu_file_spec = FileSpec::Equal(file_spec, *this, !file_spec.GetDirectory().IsEmpty());
// If we are not looking for inlined functions and our file spec doesn't
// match then we are done...
if (file_spec_matches_cu_file_spec == false && check_inlines == false)
return 0;
uint32_t file_idx = GetSupportFiles().FindFileIndex (1, file_spec, true);
while (file_idx != UINT32_MAX)
{
file_indexes.push_back (file_idx);
file_idx = GetSupportFiles().FindFileIndex (file_idx + 1, file_spec, true);
}
const size_t num_file_indexes = file_indexes.size();
if (num_file_indexes == 0)
return 0;
const uint32_t prev_size = sc_list.GetSize();
SymbolContext sc(GetModule());
sc.comp_unit = this;
if (line != 0)
{
LineTable *line_table = sc.comp_unit->GetLineTable();
if (line_table != NULL)
{
uint32_t found_line;
uint32_t line_idx;
if (num_file_indexes == 1)
{
// We only have a single support file that matches, so use
// the line table function that searches for a line entries
// that match a single support file index
LineEntry line_entry;
line_idx = line_table->FindLineEntryIndexByFileIndex (0, file_indexes.front(), line, exact, &line_entry);
// If "exact == true", then "found_line" will be the same
// as "line". If "exact == false", the "found_line" will be the
// closest line entry with a line number greater than "line" and
// we will use this for our subsequent line exact matches below.
found_line = line_entry.line;
while (line_idx != UINT32_MAX)
{
// If they only asked for the line entry, then we're done, we can just copy that over.
// But if they wanted more than just the line number, fill it in.
if (resolve_scope == eSymbolContextLineEntry)
{
sc.line_entry = line_entry;
}
else
{
line_entry.range.GetBaseAddress().CalculateSymbolContext(&sc, resolve_scope);
}
sc_list.Append(sc);
line_idx = line_table->FindLineEntryIndexByFileIndex (line_idx + 1, file_indexes.front(), found_line, true, &line_entry);
}
}
else
{
// We found multiple support files that match "file_spec" so use
// the line table function that searches for a line entries
// that match a multiple support file indexes.
LineEntry line_entry;
line_idx = line_table->FindLineEntryIndexByFileIndex (0, file_indexes, line, exact, &line_entry);
// If "exact == true", then "found_line" will be the same
// as "line". If "exact == false", the "found_line" will be the
// closest line entry with a line number greater than "line" and
// we will use this for our subsequent line exact matches below.
found_line = line_entry.line;
while (line_idx != UINT32_MAX)
{
if (resolve_scope == eSymbolContextLineEntry)
{
sc.line_entry = line_entry;
}
else
{
line_entry.range.GetBaseAddress().CalculateSymbolContext(&sc, resolve_scope);
}
sc_list.Append(sc);
line_idx = line_table->FindLineEntryIndexByFileIndex (line_idx + 1, file_indexes, found_line, true, &line_entry);
}
}
}
}
else if (file_spec_matches_cu_file_spec && !check_inlines)
{
// only append the context if we aren't looking for inline call sites
// by file and line and if the file spec matches that of the compile unit
sc_list.Append(sc);
}
return sc_list.GetSize() - prev_size;
}
void BreakpointResolver::SetSCMatchesByLine(SearchFilter &filter,
SymbolContextList &sc_list,
bool skip_prologue,
llvm::StringRef log_ident,
uint32_t line, uint32_t column) {
llvm::SmallVector<SymbolContext, 16> all_scs;
for (uint32_t i = 0; i < sc_list.GetSize(); ++i)
all_scs.push_back(sc_list[i]);
while (all_scs.size()) {
uint32_t closest_line = UINT32_MAX;
// Move all the elements with a matching file spec to the end.
auto &match = all_scs[0];
auto worklist_begin = std::partition(
all_scs.begin(), all_scs.end(), [&](const SymbolContext &sc) {
if (sc.line_entry.file == match.line_entry.file ||
sc.line_entry.original_file == match.line_entry.original_file) {
// When a match is found, keep track of the smallest line number.
closest_line = std::min(closest_line, sc.line_entry.line);
return false;
}
return true;
});
// (worklist_begin, worklist_end) now contains all entries for one filespec.
auto worklist_end = all_scs.end();
if (column) {
// If a column was requested, do a more precise match and only
// return the first location that comes after or at the
// requested location.
SourceLoc requested(line, column);
// First, filter out all entries left of the requested column.
worklist_end = std::remove_if(
worklist_begin, worklist_end,
[&](const SymbolContext &sc) { return SourceLoc(sc) < requested; });
// Sort the remaining entries by (line, column).
llvm::sort(worklist_begin, worklist_end,
[](const SymbolContext &a, const SymbolContext &b) {
return SourceLoc(a) < SourceLoc(b);
});
// Filter out all locations with a source location after the closest match.
if (worklist_begin != worklist_end)
worklist_end = std::remove_if(
worklist_begin, worklist_end, [&](const SymbolContext &sc) {
return SourceLoc(*worklist_begin) < SourceLoc(sc);
});
} else {
// Remove all entries with a larger line number.
// ResolveSymbolContext will always return a number that is >=
// the line number you pass in. So the smaller line number is
// always better.
worklist_end = std::remove_if(worklist_begin, worklist_end,
[&](const SymbolContext &sc) {
return closest_line != sc.line_entry.line;
});
}
// Sort by file address.
llvm::sort(worklist_begin, worklist_end,
[](const SymbolContext &a, const SymbolContext &b) {
return a.line_entry.range.GetBaseAddress().GetFileAddress() <
b.line_entry.range.GetBaseAddress().GetFileAddress();
});
// Go through and see if there are line table entries that are
// contiguous, and if so keep only the first of the contiguous range.
// We do this by picking the first location in each lexical block.
llvm::SmallDenseSet<Block *, 8> blocks_with_breakpoints;
for (auto first = worklist_begin; first != worklist_end; ++first) {
assert(!blocks_with_breakpoints.count(first->block));
blocks_with_breakpoints.insert(first->block);
worklist_end =
std::remove_if(std::next(first), worklist_end,
[&](const SymbolContext &sc) {
return blocks_with_breakpoints.count(sc.block);
});
}
// Make breakpoints out of the closest line number match.
for (auto &sc : llvm::make_range(worklist_begin, worklist_end))
AddLocation(filter, sc, skip_prologue, log_ident);
// Remove all contexts processed by this iteration.
all_scs.erase(worklist_begin, all_scs.end());
}
}
size_t
ModuleList::FindFunctions (const ConstString &name,
uint32_t name_type_mask,
bool include_symbols,
bool include_inlines,
bool append,
SymbolContextList &sc_list) const
{
if (!append)
sc_list.Clear();
const size_t old_size = sc_list.GetSize();
if (name_type_mask & eFunctionNameTypeAuto)
{
ConstString lookup_name;
uint32_t lookup_name_type_mask = 0;
bool match_name_after_lookup = false;
Module::PrepareForFunctionNameLookup (name, name_type_mask,
lookup_name,
lookup_name_type_mask,
match_name_after_lookup);
Mutex::Locker locker(m_modules_mutex);
collection::const_iterator pos, end = m_modules.end();
for (pos = m_modules.begin(); pos != end; ++pos)
{
(*pos)->FindFunctions (lookup_name,
NULL,
lookup_name_type_mask,
include_symbols,
include_inlines,
true,
sc_list);
}
if (match_name_after_lookup)
{
SymbolContext sc;
size_t i = old_size;
while (i<sc_list.GetSize())
{
if (sc_list.GetContextAtIndex(i, sc))
{
const char *func_name = sc.GetFunctionName().GetCString();
if (func_name && strstr (func_name, name.GetCString()) == NULL)
{
// Remove the current context
sc_list.RemoveContextAtIndex(i);
// Don't increment i and continue in the loop
continue;
}
}
++i;
}
}
}
else
{
Mutex::Locker locker(m_modules_mutex);
collection::const_iterator pos, end = m_modules.end();
for (pos = m_modules.begin(); pos != end; ++pos)
{
(*pos)->FindFunctions (name, NULL, name_type_mask, include_symbols, include_inlines, true, sc_list);
}
}
return sc_list.GetSize() - old_size;
}