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//===-- SectionLoadHistory.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_SectionLoadHistory_h_
#define liblldb_SectionLoadHistory_h_
// C Includes
// C++ Includes
#include <map>
// Project includes
#include "lldb/lldb-public.h"
#include "lldb/Host/Mutex.h"
namespace lldb_private {
class SectionLoadHistory
{
public:
enum {
// Pass eStopIDNow to any function that takes a stop ID to get
// the current value.
eStopIDNow = UINT32_MAX
};
//------------------------------------------------------------------
// Constructors and Destructors
//------------------------------------------------------------------
SectionLoadHistory () :
m_stop_id_to_section_load_list(),
m_mutex (Mutex::eMutexTypeRecursive)
{
}
~SectionLoadHistory()
{
// Call clear since this takes a lock and clears the section load list
// in case another thread is currently using this section load list
Clear();
}
SectionLoadList &
GetCurrentSectionLoadList ();
bool
IsEmpty() const;
void
Clear ();
uint32_t
GetLastStopID() const;
// Get the section load address given a process stop ID
lldb::addr_t
GetSectionLoadAddress (uint32_t stop_id,
const lldb::SectionSP §ion_sp);
bool
ResolveLoadAddress (uint32_t stop_id,
lldb::addr_t load_addr,
Address &so_addr);
bool
SetSectionLoadAddress (uint32_t stop_id,
const lldb::SectionSP §ion_sp,
lldb::addr_t load_addr,
bool warn_multiple = false);
// The old load address should be specified when unloading to ensure we get
// the correct instance of the section as a shared library could be loaded
// at more than one location.
bool
SetSectionUnloaded (uint32_t stop_id,
const lldb::SectionSP §ion_sp,
lldb::addr_t load_addr);
// Unload all instances of a section. This function can be used on systems
// that don't support multiple copies of the same shared library to be
// loaded at the same time.
size_t
SetSectionUnloaded (uint32_t stop_id,
const lldb::SectionSP §ion_sp);
void
Dump (Stream &s,
Target *target);
protected:
SectionLoadList *
GetSectionLoadListForStopID (uint32_t stop_id, bool read_only);
typedef std::map<uint32_t, lldb::SectionLoadListSP> StopIDToSectionLoadList;
StopIDToSectionLoadList m_stop_id_to_section_load_list;
mutable Mutex m_mutex;
private:
DISALLOW_COPY_AND_ASSIGN (SectionLoadHistory);
};
} // namespace lldb_private
#endif // liblldb_SectionLoadHistory_h_
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