X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/269363f1bc63093972eb06e0537ca5f22ab8a53d..6bc71102f9c6ad0e9bb98c6a8c08f3556b636d3d:/src/mc/mc_checkpoint.cpp diff --git a/src/mc/mc_checkpoint.cpp b/src/mc/mc_checkpoint.cpp index 38b4e444ba..c8311007f4 100644 --- a/src/mc/mc_checkpoint.cpp +++ b/src/mc/mc_checkpoint.cpp @@ -155,13 +155,11 @@ static void get_memory_regions(simgrid::mc::Process* process, mc_snapshot_t snap const size_t n = process->object_infos.size(); snapshot->snapshot_regions.resize(n + 1); int i = 0; - for (auto const& object_info : process->object_infos) { - add_region(i, snapshot, simgrid::mc::RegionType::Data, + for (auto const& object_info : process->object_infos) + add_region(i++, snapshot, simgrid::mc::RegionType::Data, object_info.get(), object_info->start_rw, object_info->start_rw, object_info->end_rw - object_info->start_rw); - ++i; - } xbt_mheap_t heap = process->get_heap(); void *start_heap = heap->base; @@ -175,16 +173,14 @@ static void get_memory_regions(simgrid::mc::Process* process, mc_snapshot_t snap process->get_malloc_info()); #ifdef HAVE_SMPI - if (mc_model_checker->process().privatized() && MC_smpi_process_count()) { + if (mc_model_checker->process().privatized() && MC_smpi_process_count()) // snapshot->privatization_index = smpi_loaded_page mc_model_checker->process().read_variable( "smpi_loaded_page", &snapshot->privatization_index, sizeof(snapshot->privatization_index)); - } else + else #endif - { snapshot->privatization_index = simgrid::mc::ProcessIndexMissing; - } } /** \brief Fills the position of the segments (executable, read-only, read/write). @@ -211,9 +207,8 @@ void find_object_address( // .bss is usually after the .data: simgrid::xbt::VmMap const& next = maps[i + 1]; if (next.pathname.empty() && (next.prot & PROT_WRITE) - && next.start_addr == reg.end_addr) { + && next.start_addr == reg.end_addr) result->end_rw = (char*) maps[i + 1].end_addr; - } } else if ((reg.prot & PROT_READ) && (reg.prot & PROT_EXEC)) { xbt_assert(!result->start_exec, "Multiple executable segments for %s, not supported", @@ -300,9 +295,9 @@ static void fill_local_variables_values(mc_stack_frame_t stack_frame, new_var.region = region_type; new_var.address = nullptr; - if (current_variable.address != nullptr) { + if (current_variable.address != nullptr) new_var.address = current_variable.address; - } else if (!current_variable.location_list.empty()) { + else if (!current_variable.location_list.empty()) { simgrid::dwarf::Location location = simgrid::dwarf::resolve( current_variable.location_list, @@ -315,9 +310,8 @@ static void fill_local_variables_values(mc_stack_frame_t stack_frame, xbt_die("Cannot handle non-address variable"); new_var.address = location.address(); - } else { + } else xbt_die("No address"); - } result.push_back(std::move(new_var)); } @@ -345,11 +339,9 @@ static std::vector unwind_stack_frames(mc_unw_context_t stac unw_cursor_t c; // TODO, check condition check (unw_init_local==0 means end of frame) - if (mc_unw_init_cursor(&c, stack_context) != 0) { - + if (mc_unw_init_cursor(&c, stack_context) != 0) xbt_die("Could not initialize stack unwinding"); - } else while (1) { s_mc_stack_frame_t stack_frame; @@ -386,11 +378,10 @@ static std::vector unwind_stack_frames(mc_unw_context_t stac break; int ret = unw_step(&c); - if (ret == 0) { + if (ret == 0) xbt_die("Unexpected end of stack."); - } else if (ret < 0) { + else if (ret < 0) xbt_die("Error while unwinding stack"); - } } if (result.empty()) { @@ -414,9 +405,9 @@ static std::vector take_snapshot_stacks(mc_snapshot_t * s &context, sizeof(context), remote(stack.context)); if (mc_unw_init_context(&st.context, &mc_model_checker->process(), - &context) < 0) { + &context) < 0) xbt_die("Could not initialise the libunwind context."); - } + st.stack_frames = unwind_stack_frames(&st.context); st.local_variables = get_local_variables_values(st.stack_frames, stack.process_index); st.process_index = stack.process_index; @@ -451,9 +442,8 @@ static void snapshot_handle_ignore(mc_snapshot_t snapshot) } // Zero the memory: - for(auto const& region : mc_model_checker->process().ignored_regions()) { + for(auto const& region : mc_model_checker->process().ignored_regions()) snapshot->process()->clear_bytes(remote(region.addr), region.size); - } } @@ -500,12 +490,12 @@ static std::vector get_current_fds(pid_t pid) const size_t link_size = 200; char link[200]; res = readlink(source, link, link_size); - if (res<0) { + + if (res<0) xbt_die("Could not read link for %s", source); - } - if (res==200) { + if (res==200) xbt_die("Buffer to small for link of %s", source); - } + link[res] = '\0'; #ifdef HAVE_SMPI @@ -574,14 +564,12 @@ mc_snapshot_t take_snapshot(int num_state) if (_sg_mc_visited > 0 || strcmp(_sg_mc_property_file, "")) { snapshot->stacks = take_snapshot_stacks(&snapshot); - if (_sg_mc_hash) { + if (_sg_mc_hash) snapshot->hash = simgrid::mc::hash(*snapshot); - } else { + else snapshot->hash = 0; - } - } else { + } else snapshot->hash = 0; - } snapshot_ignore_restore(snapshot); if (use_soft_dirty) @@ -619,10 +607,9 @@ void restore_snapshot_fds(mc_snapshot_t snapshot) for (auto const& fd : snapshot->current_fds) { int new_fd = open(fd.filename.c_str(), fd.flags); - if (new_fd < 0) { + if (new_fd < 0) xbt_die("Could not reopen the file %s fo restoring the file descriptor", fd.filename.c_str()); - } if (new_fd != fd.number) { dup2(new_fd, fd.number); close(new_fd);