+++ /dev/null
-/* Copyright (c) 2015-2019. 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_UNW_HPP
-#define SIMGRID_MC_UNW_HPP
-
-/** @file
- * Libunwind implementation for the model-checker
- *
- * Libunwind provides an pluggable stack unwinding API: the way the current
- * registers and memory is accessed, the way unwinding informations is found
- * is pluggable.
- *
- * This component implements the libunwind API for he model-checker:
- *
- * * reading memory from a simgrid::mc::AddressSpace*;
- *
- * * reading stack registers from a saved snapshot (context).
- *
- * Parts of the libunwind information fetching is currently handled by the
- * standard `libunwind` implementations (either the local one or the ptrace one)
- * because parsing `.eh_frame` section is not fun and `libdw` does not help
- * much here.
- */
-
-#include "src/mc/mc_forward.hpp"
-#include "xbt/base.h"
-
-#include <cstdio>
-#include <libunwind.h>
-
-namespace simgrid {
-namespace unw {
-
-XBT_PRIVATE unw_addr_space_t create_addr_space();
-XBT_PRIVATE void* create_context(unw_addr_space_t as, pid_t pid);
-}
-}
-
-namespace simgrid {
-namespace mc {
-
-class UnwindContext {
- simgrid::mc::AddressSpace* addressSpace_ = nullptr;
- simgrid::mc::RemoteClient* process_ = nullptr;
- unw_context_t unwindContext_;
-
-public:
- void initialize(simgrid::mc::RemoteClient* process, unw_context_t* c);
- unw_cursor_t cursor();
-
-private: // Methods and virtual table for libunwind
- static int find_proc_info(unw_addr_space_t as, unw_word_t ip, unw_proc_info_t* pip, int need_unwind_info,
- void* arg) noexcept;
- static void put_unwind_info(unw_addr_space_t as, unw_proc_info_t* pip, void* arg) noexcept;
- static int get_dyn_info_list_addr(unw_addr_space_t as, unw_word_t* dilap, void* arg) noexcept;
- static int access_mem(unw_addr_space_t as, unw_word_t addr, unw_word_t* valp, int write, void* arg) noexcept;
- static void* get_reg(unw_context_t* context, unw_regnum_t regnum) noexcept;
- static int access_reg(unw_addr_space_t as, unw_regnum_t regnum, unw_word_t* valp, int write, void* arg) noexcept;
- static int access_fpreg(unw_addr_space_t as, unw_regnum_t regnum, unw_fpreg_t* fpvalp, int write, void* arg) noexcept;
- static int resume(unw_addr_space_t as, unw_cursor_t* cp, void* arg) noexcept;
- static int get_proc_name(unw_addr_space_t as, unw_word_t addr, char* bufp, size_t buf_len, unw_word_t* offp,
- void* arg) noexcept;
- static unw_accessors_t accessors;
-
-public:
- // Create a libunwind address space:
- static unw_addr_space_t createUnwindAddressSpace();
-};
-
-void dumpStack(FILE* file, unw_cursor_t&& cursor);
-void dumpStack(FILE* file, pid_t pid);
-}
-}
-
-#endif