forked from OSchip/llvm-project
403 lines
12 KiB
C++
403 lines
12 KiB
C++
//===-- CompileUnit.cpp -----------------------------------------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "lldb/Symbol/CompileUnit.h"
|
|
#include "lldb/Symbol/LineTable.h"
|
|
#include "lldb/Core/Module.h"
|
|
#include "lldb/Symbol/SymbolVendor.h"
|
|
#include "lldb/Symbol/VariableList.h"
|
|
|
|
using namespace lldb;
|
|
using namespace lldb_private;
|
|
|
|
CompileUnit::CompileUnit (Module *module, void *user_data, const char *pathname, const lldb::user_id_t cu_sym_id, lldb::LanguageType language) :
|
|
ModuleChild(module),
|
|
FileSpec (pathname, false),
|
|
UserID(cu_sym_id),
|
|
Language (language),
|
|
m_user_data (user_data),
|
|
m_flags (0),
|
|
m_functions (),
|
|
m_support_files (),
|
|
m_line_table_ap (),
|
|
m_variables()
|
|
{
|
|
assert(module != NULL);
|
|
}
|
|
|
|
CompileUnit::CompileUnit (Module *module, void *user_data, const FileSpec &fspec, const lldb::user_id_t cu_sym_id, lldb::LanguageType language) :
|
|
ModuleChild(module),
|
|
FileSpec (fspec),
|
|
UserID(cu_sym_id),
|
|
Language (language),
|
|
m_user_data (user_data),
|
|
m_flags (0),
|
|
m_functions (),
|
|
m_support_files (),
|
|
m_line_table_ap (),
|
|
m_variables()
|
|
{
|
|
assert(module != NULL);
|
|
}
|
|
|
|
CompileUnit::~CompileUnit ()
|
|
{
|
|
}
|
|
|
|
void
|
|
CompileUnit::CalculateSymbolContext(SymbolContext* sc)
|
|
{
|
|
sc->comp_unit = this;
|
|
GetModule()->CalculateSymbolContext(sc);
|
|
}
|
|
|
|
void
|
|
CompileUnit::DumpSymbolContext(Stream *s)
|
|
{
|
|
GetModule()->DumpSymbolContext(s);
|
|
s->Printf(", CompileUnit{0x%8.8x}", GetID());
|
|
}
|
|
|
|
|
|
void
|
|
CompileUnit::GetDescription(Stream *s, lldb::DescriptionLevel level) const
|
|
{
|
|
*s << "id = " << (const UserID&)*this << ", file = \"" << (const FileSpec&)*this << "\", language = \"" << (const Language&)*this << '"';
|
|
}
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
// Dump the current contents of this object. No functions that cause on
|
|
// demand parsing of functions, globals, statics are called, so this
|
|
// is a good function to call to get an idea of the current contents of
|
|
// the CompileUnit object.
|
|
//----------------------------------------------------------------------
|
|
void
|
|
CompileUnit::Dump(Stream *s, bool show_context) const
|
|
{
|
|
s->Printf("%.*p: ", (int)sizeof(void*) * 2, this);
|
|
s->Indent();
|
|
*s << "CompileUnit" << (const UserID&)*this
|
|
<< ", language = \"" << (const Language&)*this
|
|
<< "\", file = '" << (const FileSpec&)*this << "'\n";
|
|
|
|
// m_types.Dump(s);
|
|
|
|
if (m_variables.get())
|
|
{
|
|
s->IndentMore();
|
|
m_variables->Dump(s, show_context);
|
|
s->IndentLess();
|
|
}
|
|
|
|
if (!m_functions.empty())
|
|
{
|
|
s->IndentMore();
|
|
std::vector<FunctionSP>::const_iterator pos;
|
|
std::vector<FunctionSP>::const_iterator end = m_functions.end();
|
|
for (pos = m_functions.begin(); pos != end; ++pos)
|
|
{
|
|
(*pos)->Dump(s, show_context);
|
|
}
|
|
|
|
s->IndentLess();
|
|
s->EOL();
|
|
}
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// Add a function to this compile unit
|
|
//----------------------------------------------------------------------
|
|
void
|
|
CompileUnit::AddFunction(FunctionSP& funcSP)
|
|
{
|
|
// TODO: order these by address
|
|
m_functions.push_back(funcSP);
|
|
}
|
|
|
|
FunctionSP
|
|
CompileUnit::GetFunctionAtIndex (size_t idx)
|
|
{
|
|
FunctionSP funcSP;
|
|
if (idx < m_functions.size())
|
|
funcSP = m_functions[idx];
|
|
return funcSP;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// Find functions using the a Mangled::Tokens token list. This
|
|
// function currently implements an interative approach designed to find
|
|
// all instances of certain functions. It isn't designed to the the
|
|
// quickest way to lookup functions as it will need to iterate through
|
|
// all functions and see if they match, though it does provide a powerful
|
|
// and context sensitive way to search for all functions with a certain
|
|
// name, all functions in a namespace, or all functions of a template
|
|
// type. See Mangled::Tokens::Parse() comments for more information.
|
|
//
|
|
// The function prototype will need to change to return a list of
|
|
// results. It was originally used to help debug the Mangled class
|
|
// and the Mangled::Tokens::MatchesQuery() function and it currently
|
|
// will print out a list of matching results for the functions that
|
|
// are currently in this compile unit.
|
|
//
|
|
// A FindFunctions method should be called prior to this that takes
|
|
// a regular function name (const char * or ConstString as a parameter)
|
|
// before resorting to this slower but more complete function. The
|
|
// other FindFunctions method should be able to take advantage of any
|
|
// accelerator tables available in the debug information (which is
|
|
// parsed by the SymbolFile parser plug-ins and registered with each
|
|
// Module).
|
|
//----------------------------------------------------------------------
|
|
//void
|
|
//CompileUnit::FindFunctions(const Mangled::Tokens& tokens)
|
|
//{
|
|
// if (!m_functions.empty())
|
|
// {
|
|
// Stream s(stdout);
|
|
// std::vector<FunctionSP>::const_iterator pos;
|
|
// std::vector<FunctionSP>::const_iterator end = m_functions.end();
|
|
// for (pos = m_functions.begin(); pos != end; ++pos)
|
|
// {
|
|
// const ConstString& demangled = (*pos)->Mangled().Demangled();
|
|
// if (demangled)
|
|
// {
|
|
// const Mangled::Tokens& func_tokens = (*pos)->Mangled().GetTokens();
|
|
// if (func_tokens.MatchesQuery (tokens))
|
|
// s << "demangled MATCH found: " << demangled << "\n";
|
|
// }
|
|
// }
|
|
// }
|
|
//}
|
|
|
|
FunctionSP
|
|
CompileUnit::FindFunctionByUID (lldb::user_id_t func_uid)
|
|
{
|
|
FunctionSP funcSP;
|
|
if (!m_functions.empty())
|
|
{
|
|
std::vector<FunctionSP>::const_iterator pos;
|
|
std::vector<FunctionSP>::const_iterator end = m_functions.end();
|
|
for (pos = m_functions.begin(); pos != end; ++pos)
|
|
{
|
|
if ((*pos)->GetID() == func_uid)
|
|
{
|
|
funcSP = *pos;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
return funcSP;
|
|
}
|
|
|
|
|
|
LineTable*
|
|
CompileUnit::GetLineTable()
|
|
{
|
|
if (m_line_table_ap.get() == NULL)
|
|
{
|
|
if (m_flags.IsClear(flagsParsedLineTable))
|
|
{
|
|
m_flags.Set(flagsParsedLineTable);
|
|
SymbolVendor* symbol_vendor = GetModule()->GetSymbolVendor();
|
|
if (symbol_vendor)
|
|
{
|
|
SymbolContext sc;
|
|
CalculateSymbolContext(&sc);
|
|
symbol_vendor->ParseCompileUnitLineTable(sc);
|
|
}
|
|
}
|
|
}
|
|
return m_line_table_ap.get();
|
|
}
|
|
|
|
void
|
|
CompileUnit::SetLineTable(LineTable* line_table)
|
|
{
|
|
if (line_table == NULL)
|
|
m_flags.Clear(flagsParsedLineTable);
|
|
else
|
|
m_flags.Set(flagsParsedLineTable);
|
|
m_line_table_ap.reset(line_table);
|
|
}
|
|
|
|
VariableListSP
|
|
CompileUnit::GetVariableList(bool can_create)
|
|
{
|
|
if (m_variables.get() == NULL && can_create)
|
|
{
|
|
SymbolContext sc;
|
|
CalculateSymbolContext(&sc);
|
|
assert(sc.module_sp);
|
|
sc.module_sp->GetSymbolVendor()->ParseVariablesForContext(sc);
|
|
}
|
|
|
|
return m_variables;
|
|
}
|
|
|
|
uint32_t
|
|
CompileUnit::FindLineEntry (uint32_t start_idx, uint32_t line, const FileSpec* file_spec_ptr, LineEntry *line_entry_ptr)
|
|
{
|
|
uint32_t file_idx = 0;
|
|
|
|
if (file_spec_ptr)
|
|
{
|
|
file_idx = GetSupportFiles().FindFileIndex (1, *file_spec_ptr);
|
|
if (file_idx == UINT32_MAX)
|
|
return UINT32_MAX;
|
|
}
|
|
else
|
|
{
|
|
// All the line table entries actually point to the version of the Compile
|
|
// Unit that is in the support files (the one at 0 was artifically added.)
|
|
// So prefer the one further on in the support files if it exists...
|
|
FileSpecList &support_files = GetSupportFiles();
|
|
file_idx = support_files.FindFileIndex (1, support_files.GetFileSpecAtIndex(0));
|
|
if (file_idx == UINT32_MAX)
|
|
file_idx = 0;
|
|
}
|
|
LineTable *line_table = GetLineTable();
|
|
if (line_table)
|
|
return line_table->FindLineEntryIndexByFileIndex (start_idx, file_idx, line, true, line_entry_ptr);
|
|
return UINT32_MAX;
|
|
}
|
|
|
|
|
|
|
|
|
|
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::Compare(file_spec, this, !file_spec.GetDirectory().IsEmpty()) == 0;
|
|
|
|
// 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);
|
|
while (file_idx != UINT32_MAX)
|
|
{
|
|
file_indexes.push_back (file_idx);
|
|
file_idx = GetSupportFiles().FindFileIndex (file_idx + 1, file_spec);
|
|
}
|
|
|
|
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
|
|
line_idx = line_table->FindLineEntryIndexByFileIndex (0, file_indexes.front(), line, exact, &sc.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 = sc.line_entry.line;
|
|
|
|
while (line_idx != UINT32_MAX)
|
|
{
|
|
sc_list.Append(sc);
|
|
line_idx = line_table->FindLineEntryIndexByFileIndex (line_idx + 1, file_indexes.front(), found_line, true, &sc.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.
|
|
line_idx = line_table->FindLineEntryIndexByFileIndex (0, file_indexes, line, exact, &sc.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 = sc.line_entry.line;
|
|
|
|
while (line_idx != UINT32_MAX)
|
|
{
|
|
sc_list.Append(sc);
|
|
line_idx = line_table->FindLineEntryIndexByFileIndex (line_idx + 1, file_indexes, found_line, true, &sc.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
|
|
CompileUnit::SetVariableList(VariableListSP &variables)
|
|
{
|
|
m_variables = variables;
|
|
}
|
|
|
|
FileSpecList&
|
|
CompileUnit::GetSupportFiles ()
|
|
{
|
|
if (m_support_files.GetSize() == 0)
|
|
{
|
|
if (m_flags.IsClear(flagsParsedSupportFiles))
|
|
{
|
|
m_flags.Set(flagsParsedSupportFiles);
|
|
SymbolVendor* symbol_vendor = GetModule()->GetSymbolVendor();
|
|
if (symbol_vendor)
|
|
{
|
|
SymbolContext sc;
|
|
CalculateSymbolContext(&sc);
|
|
symbol_vendor->ParseCompileUnitSupportFiles(sc, m_support_files);
|
|
}
|
|
}
|
|
}
|
|
return m_support_files;
|
|
}
|
|
|
|
void *
|
|
CompileUnit::GetUserData () const
|
|
{
|
|
return m_user_data;
|
|
}
|
|
|
|
|