+++ /dev/null
-/* Copyright (c) 2007-2023. The SimGrid Team. All rights reserved. */
-
-/* This program is free software; you can redistribute it and/or modify it
- * under the terms of the license (GNU LGPL) which comes with this package. */
-
-#ifndef SIMGRID_MC_SNAPSHOT_HPP
-#define SIMGRID_MC_SNAPSHOT_HPP
-
-#include "src/mc/ModelChecker.hpp"
-#include "src/mc/inspect/mc_unw.hpp"
-#include "src/mc/sosp/Region.hpp"
-#include "src/mc/sosp/RemoteProcessMemory.hpp"
-
-// ***** MC Snapshot
-
-/** Ignored data
- *
- * Some parts of the snapshot are ignored by zeroing them out: the real values is stored here.
- */
-struct s_mc_snapshot_ignored_data_t {
- void* start;
- std::vector<char> data;
-};
-
-/** Information about a given stack frame */
-struct s_mc_stack_frame_t {
- /** Instruction pointer */
- unw_word_t ip;
- /** Stack pointer */
- unw_word_t sp;
- unw_word_t frame_base;
- simgrid::mc::Frame* frame;
- std::string frame_name;
- unw_cursor_t unw_cursor;
-};
-using mc_stack_frame_t = s_mc_stack_frame_t*;
-
-struct s_local_variable_t {
- simgrid::mc::Frame* subprogram;
- unsigned long ip;
- std::string name;
- simgrid::mc::Type* type;
- void* address;
-};
-using local_variable_t = s_local_variable_t*;
-using const_local_variable_t = const s_local_variable_t*;
-
-struct XBT_PRIVATE s_mc_snapshot_stack_t {
- std::vector<s_local_variable_t> local_variables;
- simgrid::mc::UnwindContext context;
- std::vector<s_mc_stack_frame_t> stack_frames;
-};
-using mc_snapshot_stack_t = s_mc_snapshot_stack_t*;
-using const_mc_snapshot_stack_t = const s_mc_snapshot_stack_t*;
-
-namespace simgrid::mc {
-
-using hash_type = std::uint64_t;
-
-class XBT_PRIVATE Snapshot final : public AddressSpace {
- PageStore& page_store_;
-
-public:
- /* Initialization */
- Snapshot(long num_state, PageStore& store, RemoteProcessMemory& memory);
-
- /* Regular use */
- bool on_heap(const void* address) const
- {
- const s_xbt_mheap_t* heap = get_remote_process_memory()->get_heap();
- return address >= heap->heapbase && address < heap->breakval;
- }
-
- void* read_bytes(void* buffer, std::size_t size, RemotePtr<void> address,
- ReadOptions options = ReadOptions::none()) const override;
- Region* get_region(const void* addr) const;
- Region* get_region(const void* addr, Region* hinted_region) const;
- void restore(RemoteProcessMemory& memory) const;
-
- bool operator==(const Snapshot& other);
- bool operator!=(const Snapshot& other) { return not(*this == other); }
-
- // To be private
- long num_state_;
- std::size_t heap_bytes_used_ = 0;
- std::vector<std::unique_ptr<Region>> snapshot_regions_;
- std::vector<std::size_t> stack_sizes_;
- std::vector<s_mc_snapshot_stack_t> stacks_;
- std::vector<simgrid::mc::IgnoredHeapRegion> to_ignore_;
- std::uint64_t hash_ = 0;
- std::vector<s_mc_snapshot_ignored_data_t> ignored_data_;
-
-private:
- void add_region(RegionType type, ObjectInformation* object_info, void* start_addr, std::size_t size);
- void snapshot_regions(RemoteProcessMemory& process_memory);
- void snapshot_stacks(RemoteProcessMemory& process_memory);
- void handle_ignore();
- void ignore_restore() const;
- hash_type do_hash() const;
-};
-} // namespace simgrid::mc
-
-#endif
