mirror of
https://github.com/capstone-engine/llvm-capstone.git
synced 2025-04-04 14:23:00 +00:00
6dbd39838d
Added a "bool show_fullpaths" to many more objects that were previously always dumping full paths. Fixed a few places where the DWARF was not indexed when we we needed it to be when making queries. Also fixed an issue where the DWARF in .o files wasn't searching all .o files for the types. Fixed an issue with the output from "image lookup --type <TYPENAME>" where the name and byte size might not be resolved and might not display. We now call the accessors so we end up seeing all of the type info. llvm-svn: 113951
511 lines
12 KiB
C++
511 lines
12 KiB
C++
//===-- Function.cpp --------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Symbol/Function.h"
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#include "lldb/Core/Module.h"
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#include "lldb/Core/Section.h"
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#include "lldb/Symbol/ClangASTType.h"
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#include "lldb/Symbol/ClangASTContext.h"
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#include "lldb/Symbol/CompileUnit.h"
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#include "lldb/Symbol/LineTable.h"
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#include "lldb/Symbol/SymbolVendor.h"
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#include "clang/AST/Type.h"
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#include "clang/AST/CanonicalType.h"
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using namespace lldb;
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using namespace lldb_private;
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//----------------------------------------------------------------------
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// Basic function information is contained in the FunctionInfo class.
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// It is designed to contain the name, linkage name, and declaration
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// location.
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//----------------------------------------------------------------------
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FunctionInfo::FunctionInfo (const char *name, const Declaration *decl_ptr) :
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m_name(name),
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m_declaration(decl_ptr)
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{
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}
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FunctionInfo::FunctionInfo (const ConstString& name, const Declaration *decl_ptr) :
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m_name(name),
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m_declaration(decl_ptr)
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{
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}
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FunctionInfo::~FunctionInfo()
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{
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}
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void
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FunctionInfo::Dump(Stream *s, bool show_fullpaths) const
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{
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if (m_name)
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*s << ", name = \"" << m_name << "\"";
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m_declaration.Dump(s, show_fullpaths);
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}
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int
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FunctionInfo::Compare(const FunctionInfo& a, const FunctionInfo& b)
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{
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int result = ConstString::Compare(a.GetName(), b.GetName());
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if (result)
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return result;
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return Declaration::Compare(a.m_declaration, b.m_declaration);
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}
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Declaration&
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FunctionInfo::GetDeclaration()
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{
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return m_declaration;
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}
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const Declaration&
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FunctionInfo::GetDeclaration() const
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{
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return m_declaration;
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}
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const ConstString&
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FunctionInfo::GetName() const
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{
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return m_name;
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}
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size_t
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FunctionInfo::MemorySize() const
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{
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return m_name.MemorySize() + m_declaration.MemorySize();
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}
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InlineFunctionInfo::InlineFunctionInfo
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(
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const char *name,
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const char *mangled,
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const Declaration *decl_ptr,
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const Declaration *call_decl_ptr
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) :
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FunctionInfo(name, decl_ptr),
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m_mangled(mangled, true),
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m_call_decl (call_decl_ptr)
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{
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}
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InlineFunctionInfo::InlineFunctionInfo
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(
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const ConstString& name,
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const Mangled &mangled,
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const Declaration *decl_ptr,
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const Declaration *call_decl_ptr
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) :
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FunctionInfo(name, decl_ptr),
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m_mangled(mangled),
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m_call_decl (call_decl_ptr)
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{
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}
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InlineFunctionInfo::~InlineFunctionInfo()
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{
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}
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int
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InlineFunctionInfo::Compare(const InlineFunctionInfo& a, const InlineFunctionInfo& b)
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{
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int result = FunctionInfo::Compare(a, b);
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if (result)
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return result;
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// only compare the mangled names if both have them
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return Mangled::Compare(a.m_mangled, a.m_mangled);
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}
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void
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InlineFunctionInfo::Dump(Stream *s, bool show_fullpaths) const
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{
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FunctionInfo::Dump(s, show_fullpaths);
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if (m_mangled)
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m_mangled.Dump(s);
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}
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void
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InlineFunctionInfo::DumpStopContext (Stream *s) const
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{
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// s->Indent("[inlined] ");
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s->Indent();
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if (m_mangled)
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s->PutCString (m_mangled.GetName().AsCString());
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else
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s->PutCString (m_name.AsCString());
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}
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const ConstString &
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InlineFunctionInfo::GetName () const
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{
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if (m_mangled)
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return m_mangled.GetName();
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return m_name;
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}
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Declaration &
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InlineFunctionInfo::GetCallSite ()
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{
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return m_call_decl;
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}
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const Declaration &
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InlineFunctionInfo::GetCallSite () const
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{
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return m_call_decl;
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}
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Mangled&
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InlineFunctionInfo::GetMangled()
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{
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return m_mangled;
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}
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const Mangled&
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InlineFunctionInfo::GetMangled() const
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{
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return m_mangled;
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}
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size_t
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InlineFunctionInfo::MemorySize() const
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{
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return FunctionInfo::MemorySize() + m_mangled.MemorySize();
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}
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//----------------------------------------------------------------------
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//
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//----------------------------------------------------------------------
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Function::Function
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(
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CompileUnit *comp_unit,
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lldb::user_id_t func_uid,
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lldb::user_id_t type_uid,
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const Mangled &mangled,
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Type * type,
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const AddressRange& range
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) :
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UserID (func_uid),
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m_comp_unit (comp_unit),
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m_type_uid (type_uid),
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m_type (type),
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m_mangled (mangled),
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m_block (func_uid),
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m_range (range),
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m_frame_base (),
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m_flags (),
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m_prologue_byte_size (0)
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{
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m_block.SetParentScope(this);
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assert(comp_unit != NULL);
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}
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Function::Function
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(
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CompileUnit *comp_unit,
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lldb::user_id_t func_uid,
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lldb::user_id_t type_uid,
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const char *mangled,
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Type *type,
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const AddressRange &range
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) :
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UserID (func_uid),
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m_comp_unit (comp_unit),
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m_type_uid (type_uid),
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m_type (type),
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m_mangled (mangled, true),
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m_block (func_uid),
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m_range (range),
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m_frame_base (),
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m_flags (),
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m_prologue_byte_size (0)
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{
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m_block.SetParentScope(this);
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assert(comp_unit != NULL);
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}
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Function::~Function()
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{
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}
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void
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Function::GetStartLineSourceInfo (FileSpec &source_file, uint32_t &line_no)
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{
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line_no = 0;
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source_file.Clear();
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if (m_comp_unit == NULL)
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return;
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if (m_type != NULL && m_type->GetDeclaration().GetLine() != 0)
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{
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source_file = m_type->GetDeclaration().GetFile();
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line_no = m_type->GetDeclaration().GetLine();
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}
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else
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{
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LineTable *line_table = m_comp_unit->GetLineTable();
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if (line_table == NULL)
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return;
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LineEntry line_entry;
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if (line_table->FindLineEntryByAddress (GetAddressRange().GetBaseAddress(), line_entry, NULL))
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{
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line_no = line_entry.line;
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source_file = line_entry.file;
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}
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}
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}
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void
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Function::GetEndLineSourceInfo (FileSpec &source_file, uint32_t &line_no)
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{
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line_no = 0;
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source_file.Clear();
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// The -1 is kind of cheesy, but I want to get the last line entry for the given function, not the
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// first entry of the next.
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Address scratch_addr(GetAddressRange().GetBaseAddress());
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scratch_addr.SetOffset (scratch_addr.GetOffset() + GetAddressRange().GetByteSize() - 1);
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LineTable *line_table = m_comp_unit->GetLineTable();
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if (line_table == NULL)
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return;
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LineEntry line_entry;
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if (line_table->FindLineEntryByAddress (scratch_addr, line_entry, NULL))
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{
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line_no = line_entry.line;
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source_file = line_entry.file;
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}
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}
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Block &
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Function::GetBlock (bool can_create)
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{
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if (!m_block.BlockInfoHasBeenParsed() && can_create)
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{
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SymbolContext sc;
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CalculateSymbolContext(&sc);
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assert(sc.module_sp);
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sc.module_sp->GetSymbolVendor()->ParseFunctionBlocks(sc);
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m_block.SetBlockInfoHasBeenParsed (true, true);
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}
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return m_block;
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}
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CompileUnit*
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Function::GetCompileUnit()
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{
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return m_comp_unit;
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}
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const CompileUnit*
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Function::GetCompileUnit() const
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{
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return m_comp_unit;
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}
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void
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Function::GetDescription(Stream *s, lldb::DescriptionLevel level, Target *target)
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{
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Type* func_type = GetType();
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*s << "id = " << (const UserID&)*this << ", name = \"" << func_type->GetName() << "\", range = ";
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Address::DumpStyle fallback_style;
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if (level == eDescriptionLevelVerbose)
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fallback_style = Address::DumpStyleModuleWithFileAddress;
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else
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fallback_style = Address::DumpStyleFileAddress;
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GetAddressRange().Dump(s, target, Address::DumpStyleLoadAddress, fallback_style);
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}
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void
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Function::Dump(Stream *s, bool show_context) const
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{
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s->Printf("%.*p: ", (int)sizeof(void*) * 2, this);
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s->Indent();
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*s << "Function" << (const UserID&)*this;
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m_mangled.Dump(s);
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// FunctionInfo::Dump(s);
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if (m_type)
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{
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*s << ", type = " << (void*)m_type;
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/// << " (";
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///m_type->DumpTypeName(s);
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///s->PutChar(')');
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}
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else if (m_type_uid != LLDB_INVALID_UID)
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*s << ", type_uid = " << m_type_uid;
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s->EOL();
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// Dump the root object
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if (m_block.BlockInfoHasBeenParsed ())
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m_block.Dump(s, m_range.GetBaseAddress().GetFileAddress(), INT_MAX, show_context);
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}
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void
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Function::CalculateSymbolContext(SymbolContext* sc)
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{
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sc->function = this;
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m_comp_unit->CalculateSymbolContext(sc);
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}
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void
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Function::DumpSymbolContext(Stream *s)
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{
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m_comp_unit->DumpSymbolContext(s);
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s->Printf(", Function{0x%8.8x}", GetID());
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}
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size_t
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Function::MemorySize () const
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{
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size_t mem_size = sizeof(Function) + m_block.MemorySize();
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return mem_size;
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}
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Type*
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Function::GetType()
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{
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return m_type;
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}
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const Type*
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Function::GetType() const
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{
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return m_type;
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}
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Type
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Function::GetReturnType ()
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{
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clang::QualType clang_type (clang::QualType::getFromOpaquePtr(GetType()->GetOpaqueClangQualType()));
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assert (clang_type->isFunctionType());
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clang::FunctionType *function_type = dyn_cast<clang::FunctionType> (clang_type);
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clang::QualType fun_return_qualtype = function_type->getResultType();
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const ConstString fun_return_name(ClangASTType::GetClangTypeName(fun_return_qualtype.getAsOpaquePtr()));
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SymbolContext sc;
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CalculateSymbolContext (&sc);
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// Null out everything below the CompUnit 'cause we don't actually know these.
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size_t bit_size = ClangASTType::GetClangTypeBitWidth ((GetType()->GetClangASTContext().getASTContext()), fun_return_qualtype.getAsOpaquePtr());
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Type return_type (0, GetType()->GetSymbolFile(), fun_return_name, bit_size, sc.comp_unit, 0, Type::eTypeUIDSynthetic, Declaration(), fun_return_qualtype.getAsOpaquePtr());
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return return_type;
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}
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int
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Function::GetArgumentCount ()
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{
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clang::QualType clang_type (clang::QualType::getFromOpaquePtr(GetType()->GetOpaqueClangQualType()));
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assert (clang_type->isFunctionType());
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if (!clang_type->isFunctionProtoType())
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return -1;
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const clang::FunctionProtoType *function_proto_type = dyn_cast<clang::FunctionProtoType>(clang_type);
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if (function_proto_type != NULL)
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return function_proto_type->getNumArgs();
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return 0;
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}
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const Type
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Function::GetArgumentTypeAtIndex (size_t idx)
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{
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clang::QualType clang_type (clang::QualType::getFromOpaquePtr(GetType()->GetOpaqueClangQualType()));
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assert (clang_type->isFunctionType());
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if (!clang_type->isFunctionProtoType())
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return Type();
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const clang::FunctionProtoType *function_proto_type = dyn_cast<clang::FunctionProtoType>(clang_type);
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if (function_proto_type != NULL)
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{
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unsigned num_args = function_proto_type->getNumArgs();
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if (idx >= num_args)
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return Type();
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clang::QualType arg_qualtype = (function_proto_type->arg_type_begin())[idx];
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const ConstString arg_return_name(ClangASTType::GetClangTypeName(arg_qualtype.getAsOpaquePtr()));
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SymbolContext sc;
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CalculateSymbolContext (&sc);
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// Null out everything below the CompUnit 'cause we don't actually know these.
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size_t bit_size = ClangASTType::GetClangTypeBitWidth ((GetType()->GetClangASTContext().getASTContext()), arg_qualtype.getAsOpaquePtr());
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Type arg_type (0, GetType()->GetSymbolFile(), arg_return_name, bit_size, sc.comp_unit, 0, Type::eTypeUIDSynthetic, Declaration(), arg_qualtype.getAsOpaquePtr());
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return arg_type;
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}
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return Type();
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}
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const char *
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Function::GetArgumentNameAtIndex (size_t idx)
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{
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clang::Type *clang_type = static_cast<clang::QualType *>(GetType()->GetOpaqueClangQualType())->getTypePtr();
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assert (clang_type->isFunctionType());
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if (!clang_type->isFunctionProtoType())
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return NULL;
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return NULL;
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}
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bool
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Function::IsVariadic ()
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{
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const clang::Type *clang_type = static_cast<clang::QualType *>(GetType()->GetOpaqueClangQualType())->getTypePtr();
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assert (clang_type->isFunctionType());
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if (!clang_type->isFunctionProtoType())
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return false;
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const clang::FunctionProtoType *function_proto_type = dyn_cast<clang::FunctionProtoType>(clang_type);
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if (function_proto_type != NULL)
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{
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return function_proto_type->isVariadic();
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}
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return false;
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}
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uint32_t
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Function::GetPrologueByteSize ()
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{
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if (m_prologue_byte_size == 0 && m_flags.IsClear(flagsCalculatedPrologueSize))
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{
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m_flags.Set(flagsCalculatedPrologueSize);
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LineTable* line_table = m_comp_unit->GetLineTable ();
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if (line_table)
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{
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LineEntry line_entry;
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if (line_table->FindLineEntryByAddress(GetAddressRange().GetBaseAddress(), line_entry))
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m_prologue_byte_size = line_entry.range.GetByteSize();
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}
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}
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return m_prologue_byte_size;
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}
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