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Diffstat (limited to 'source/Plugins/Process/elf-core/ProcessElfCore.h')
| -rw-r--r-- | source/Plugins/Process/elf-core/ProcessElfCore.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/source/Plugins/Process/elf-core/ProcessElfCore.h b/source/Plugins/Process/elf-core/ProcessElfCore.h new file mode 100644 index 000000000000..1c1ed98ce17a --- /dev/null +++ b/source/Plugins/Process/elf-core/ProcessElfCore.h @@ -0,0 +1,171 @@ +//===-- ProcessElfCore.h ---------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +// Notes about Linux Process core dumps: +// 1) Linux core dump is stored as ELF file. +// 2) The ELF file's PT_NOTE and PT_LOAD segments describes the program's +// address space and thread contexts. +// 3) PT_NOTE segment contains note entries which describes a thread context. +// 4) PT_LOAD segment describes a valid contigous range of process address +// space. +//===----------------------------------------------------------------------===// + +#ifndef liblldb_ProcessElfCore_h_ +#define liblldb_ProcessElfCore_h_ + +// C++ Includes +#include <list> +#include <vector> + +// Other libraries and framework includes +#include "lldb/Core/ConstString.h" +#include "lldb/Core/Error.h" +#include "lldb/Target/Process.h" + +#include "Plugins/ObjectFile/ELF/ELFHeader.h" + +struct ThreadData; + +class ProcessElfCore : public lldb_private::Process +{ +public: + //------------------------------------------------------------------ + // Constructors and Destructors + //------------------------------------------------------------------ + static lldb::ProcessSP + CreateInstance (lldb_private::Target& target, + lldb_private::Listener &listener, + const lldb_private::FileSpec *crash_file_path); + + static void + Initialize(); + + static void + Terminate(); + + static lldb_private::ConstString + GetPluginNameStatic(); + + static const char * + GetPluginDescriptionStatic(); + + //------------------------------------------------------------------ + // Constructors and Destructors + //------------------------------------------------------------------ + ProcessElfCore(lldb_private::Target& target, + lldb_private::Listener &listener, + const lldb_private::FileSpec &core_file); + + virtual + ~ProcessElfCore(); + + //------------------------------------------------------------------ + // Check if a given Process + //------------------------------------------------------------------ + virtual bool + CanDebug (lldb_private::Target &target, + bool plugin_specified_by_name); + + //------------------------------------------------------------------ + // Creating a new process, or attaching to an existing one + //------------------------------------------------------------------ + virtual lldb_private::Error + DoLoadCore (); + + virtual lldb_private::DynamicLoader * + GetDynamicLoader (); + + //------------------------------------------------------------------ + // PluginInterface protocol + //------------------------------------------------------------------ + virtual lldb_private::ConstString + GetPluginName(); + + virtual uint32_t + GetPluginVersion(); + + //------------------------------------------------------------------ + // Process Control + //------------------------------------------------------------------ + virtual lldb_private::Error + DoDestroy (); + + virtual void + RefreshStateAfterStop(); + + //------------------------------------------------------------------ + // Process Queries + //------------------------------------------------------------------ + virtual bool + IsAlive (); + + //------------------------------------------------------------------ + // Process Memory + //------------------------------------------------------------------ + virtual size_t + ReadMemory (lldb::addr_t addr, void *buf, size_t size, lldb_private::Error &error); + + virtual size_t + DoReadMemory (lldb::addr_t addr, void *buf, size_t size, lldb_private::Error &error); + + virtual lldb::addr_t + GetImageInfoAddress (); + + lldb_private::ArchSpec + GetArchitecture(); + + // Returns AUXV structure found in the core file + const lldb::DataBufferSP + GetAuxvData(); + +protected: + void + Clear ( ); + + virtual bool + UpdateThreadList (lldb_private::ThreadList &old_thread_list, + lldb_private::ThreadList &new_thread_list); + +private: + //------------------------------------------------------------------ + // For ProcessElfCore only + //------------------------------------------------------------------ + typedef lldb_private::Range<lldb::addr_t, lldb::addr_t> FileRange; + typedef lldb_private::RangeDataArray<lldb::addr_t, lldb::addr_t, FileRange, 1> VMRangeToFileOffset; + + lldb::ModuleSP m_core_module_sp; + lldb_private::FileSpec m_core_file; + std::string m_dyld_plugin_name; + DISALLOW_COPY_AND_ASSIGN (ProcessElfCore); + + // True if m_thread_contexts contains valid entries + bool m_thread_data_valid; + + // Contain thread data read from NOTE segments + std::vector<ThreadData> m_thread_data; + + // AUXV structure found from the NOTE segment + lldb_private::DataExtractor m_auxv; + + // Address ranges found in the core + VMRangeToFileOffset m_core_aranges; + + // Parse thread(s) data structures(prstatus, prpsinfo) from given NOTE segment + void + ParseThreadContextsFromNoteSegment (const elf::ELFProgramHeader *segment_header, + lldb_private::DataExtractor segment_data); + + // Returns number of thread contexts stored in the core file + uint32_t + GetNumThreadContexts(); + + // Parse a contiguous address range of the process from LOAD segment + lldb::addr_t + AddAddressRangeFromLoadSegment(const elf::ELFProgramHeader *header); +}; + +#endif // liblldb_ProcessElffCore_h_ |