Greg Clayton 23f8c95a44 JITed functions can now have debug info and be debugged with debug and source info:
(lldb) b puts
(lldb) expr -g -i0 -- (int)puts("hello")

First we will stop at the entry point of the expression before it runs, then we can step over a few times and hit the breakpoint in "puts", then we can continue and finishing stepping and fininsh the expression.

Main features:
- New ObjectFileJIT class that can be easily created for JIT functions
- debug info can now be enabled when parsing expressions
- source for any function that is run throught the JIT is now saved in LLDB process specific temp directory and cleaned up on exit
- "expr -g --" allows you to single step through your expression function with source code

<rdar://problem/16382881>

llvm-svn: 204682
2014-03-24 23:10:19 +00:00

143 lines
4.2 KiB
C++

//===-- ObjectFileJIT.h -----------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_ObjectFileJIT_h_
#define liblldb_ObjectFileJIT_h_
#include "lldb/Core/Address.h"
#include "lldb/Symbol/ObjectFile.h"
//----------------------------------------------------------------------
// This class needs to be hidden as eventually belongs in a plugin that
// will export the ObjectFile protocol
//----------------------------------------------------------------------
class ObjectFileJIT :
public lldb_private::ObjectFile
{
public:
//------------------------------------------------------------------
// Static Functions
//------------------------------------------------------------------
static void
Initialize();
static void
Terminate();
static lldb_private::ConstString
GetPluginNameStatic();
static const char *
GetPluginDescriptionStatic();
static lldb_private::ObjectFile *
CreateInstance (const lldb::ModuleSP &module_sp,
lldb::DataBufferSP& data_sp,
lldb::offset_t data_offset,
const lldb_private::FileSpec* file,
lldb::offset_t file_offset,
lldb::offset_t length);
static lldb_private::ObjectFile *
CreateMemoryInstance (const lldb::ModuleSP &module_sp,
lldb::DataBufferSP& data_sp,
const lldb::ProcessSP &process_sp,
lldb::addr_t header_addr);
static size_t
GetModuleSpecifications (const lldb_private::FileSpec& file,
lldb::DataBufferSP& data_sp,
lldb::offset_t data_offset,
lldb::offset_t file_offset,
lldb::offset_t length,
lldb_private::ModuleSpecList &specs);
//------------------------------------------------------------------
// Member Functions
//------------------------------------------------------------------
ObjectFileJIT (const lldb::ModuleSP &module_sp,
const lldb::ObjectFileJITDelegateSP &delegate_sp);
virtual
~ObjectFileJIT();
virtual bool
ParseHeader ();
virtual bool
SetLoadAddress(lldb_private::Target &target,
lldb::addr_t value,
bool value_is_offset);
virtual lldb::ByteOrder
GetByteOrder () const;
virtual bool
IsExecutable () const;
virtual uint32_t
GetAddressByteSize () const;
virtual lldb_private::Symtab *
GetSymtab();
virtual bool
IsStripped ();
virtual void
CreateSections (lldb_private::SectionList &unified_section_list);
virtual void
Dump (lldb_private::Stream *s);
virtual bool
GetArchitecture (lldb_private::ArchSpec &arch);
virtual bool
GetUUID (lldb_private::UUID* uuid);
virtual uint32_t
GetDependentModules (lldb_private::FileSpecList& files);
virtual size_t
ReadSectionData (const lldb_private::Section *section,
off_t section_offset,
void *dst,
size_t dst_len) const;
virtual size_t
ReadSectionData (const lldb_private::Section *section,
lldb_private::DataExtractor& section_data) const;
//------------------------------------------------------------------
// PluginInterface protocol
//------------------------------------------------------------------
virtual lldb_private::ConstString
GetPluginName();
virtual uint32_t
GetPluginVersion();
virtual lldb_private::Address
GetEntryPointAddress ();
virtual lldb_private::Address
GetHeaderAddress ();
virtual ObjectFile::Type
CalculateType();
virtual ObjectFile::Strata
CalculateStrata();
protected:
lldb::ObjectFileJITDelegateWP m_delegate_wp;
};
#endif // liblldb_ObjectFileJIT_h_