1 /* Copyright (c) 2007-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #ifndef SIMGRID_MC_OBJECT_INFORMATION_HPP
8 #define SIMGRID_MC_OBJECT_INFORMATION_HPP
11 #include <unordered_map>
16 #include "src/mc/mc_forward.h"
17 #include "src/mc/Type.hpp"
18 #include "src/mc/Frame.hpp"
20 #include "src/smpi/private.h"
25 /** An entry in the functions index
27 * See the code of ObjectInformation::find_function.
29 struct FunctionIndexEntry {
31 simgrid::mc::Frame* function;
34 /** Information about an (ELF) executable/sharedobject
36 * This contain sall the information we have at runtime about an
37 * executable/shared object in the target (modelchecked) process:
38 * - where it is located in the virtual address space;
39 * - where are located it's different memory mapping in the the
40 * virtual address space ;
41 * - all the debugging (DWARF) information,
42 * - location of the functions,
46 * It is not copyable because we are taking pointers to Types/Frames.
47 * We'd have to update/rebuild some data structures in order to copy
51 class ObjectInformation {
56 ObjectInformation(ObjectInformation const&) = delete;
57 ObjectInformation& operator=(ObjectInformation const&) = delete;
60 static const int Executable = 1;
62 /** Bitfield of flags */
64 std::string file_name;
68 char *end_exec; // Executable segment
70 char *end_rw; // Read-write segment
72 char *end_ro; // read-only segment
73 std::unordered_map<std::uint64_t, simgrid::mc::Frame> subprograms;
74 // TODO, remove the mutable (to remove it we'll have to add a lot of const everywhere)
75 mutable std::vector<simgrid::mc::Variable> global_variables;
76 std::unordered_map<std::uint64_t, simgrid::mc::Type> types;
77 std::unordered_map<std::string, simgrid::mc::Type*> full_types_by_name;
79 /** Index of functions by IP
81 * The entries are sorted by low_pc and a binary search can be used to look
82 * them up. Should we used a binary tree instead?
84 std::vector<FunctionIndexEntry> functions_index;
86 bool executable() const
88 return this->flags & simgrid::mc::ObjectInformation::Executable;
91 void* base_address() const;
93 simgrid::mc::Frame* find_function(const void *ip) const;
94 simgrid::mc::Variable* find_variable(const char* name) const;
95 void remove_global_variable(const char* name);
96 void remove_local_variable(
97 const char* name, const char* scope);