+/* Copyright (c) 2008-2018. 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. */
+
+#include <unistd.h>
+
+#include <cstring>
+#include <dirent.h>
+#include <fcntl.h>
+#include <link.h>
+
+#ifndef WIN32
+#include <sys/mman.h>
+#endif
+
+#include "src/internal_config.h"
+#include "src/mc/mc_private.hpp"
+#include "src/smpi/include/private.hpp"
+#include "xbt/file.hpp"
+#include "xbt/mmalloc.h"
+#include "xbt/module.h"
+
+#include "src/xbt/mmalloc/mmprivate.h"
+
+#include "src/simix/smx_private.hpp"
+
+#include <libunwind.h>
+#include <libelf.h>
+
+#include "src/mc/mc_private.hpp"
+#include <mc/mc.h>
+
+#include "src/mc/mc_config.hpp"
+#include "src/mc/mc_hash.hpp"
+#include "src/mc/mc_mmu.hpp"
+#include "src/mc/mc_smx.hpp"
+#include "src/mc/mc_snapshot.hpp"
+#include "src/mc/mc_unw.hpp"
+#include "src/mc/remote/mc_protocol.h"
+
+#include "src/mc/RegionSnapshot.hpp"
+#include "src/mc/ObjectInformation.hpp"
+#include "src/mc/Frame.hpp"
+#include "src/mc/Variable.hpp"
+
+using simgrid::mc::remote;
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_checkpoint, mc, "Logging specific to mc_checkpoint");
+
+#define PROT_RWX (PROT_READ | PROT_WRITE | PROT_EXEC)
+#define PROT_RW (PROT_READ | PROT_WRITE)
+#define PROT_RX (PROT_READ | PROT_EXEC)
+
+namespace simgrid {
+namespace mc {
+
+/************************************ Free functions **************************************/
+/*****************************************************************************************/
+
+/** @brief Restore a region from a snapshot
+ *
+ * @param region Target region
+ */
+static void restore(mc_mem_region_t region)
+{
+ switch(region->storage_type()) {
+ case simgrid::mc::StorageType::Flat:
+ mc_model_checker->process().write_bytes(region->flat_data().get(),
+ region->size(), region->permanent_address());
+ break;
+
+ case simgrid::mc::StorageType::Chunked:
+ mc_region_restore_sparse(&mc_model_checker->process(), region);
+ break;
+
+ case simgrid::mc::StorageType::Privatized:
+ for (auto& p : region->privatized_data())
+ restore(&p);
+ break;
+
+ default: // includes StorageType::NoData
+ xbt_die("Storage type not supported");
+ break;
+ }
+}
+
+#if HAVE_SMPI
+RegionSnapshot privatized_region(
+ RegionType region_type, void *start_addr, void* permanent_addr,
+ std::size_t size
+ )
+{
+ size_t process_count = MC_smpi_process_count();
+
+ // Read smpi_privatization_regions from MCed:
+ smpi_privatization_region_t remote_smpi_privatization_regions;
+ mc_model_checker->process().read_variable(
+ "smpi_privatization_regions",
+ &remote_smpi_privatization_regions, sizeof(remote_smpi_privatization_regions));
+ s_smpi_privatization_region_t privatization_regions[process_count];
+ mc_model_checker->process().read_bytes(
+ &privatization_regions, sizeof(privatization_regions),
+ remote(remote_smpi_privatization_regions));
+
+ std::vector<simgrid::mc::RegionSnapshot> data;
+ data.reserve(process_count);
+ for (size_t i = 0; i < process_count; i++)
+ data.push_back(simgrid::mc::region(region_type, start_addr,
+ privatization_regions[i].address, size));
+
+ simgrid::mc::RegionSnapshot region = simgrid::mc::RegionSnapshot(
+ region_type, start_addr, permanent_addr, size);
+ region.privatized_data(std::move(data));
+ return region;
+}
+#endif
+
+static
+void add_region(int index, simgrid::mc::Snapshot* snapshot,
+ simgrid::mc::RegionType type,
+ simgrid::mc::ObjectInformation* object_info,
+ void *start_addr, void* permanent_addr,
+ std::size_t size)
+{
+ if (type == simgrid::mc::RegionType::Data)
+ xbt_assert(object_info, "Missing object info for object.");
+ else if (type == simgrid::mc::RegionType::Heap)
+ xbt_assert(not object_info, "Unexpected object info for heap region.");
+
+ simgrid::mc::RegionSnapshot region;
+#if HAVE_SMPI
+ const bool privatization_aware = object_info
+ && mc_model_checker->process().privatized(*object_info);
+ if (privatization_aware && MC_smpi_process_count())
+ region = simgrid::mc::privatized_region(
+ type, start_addr, permanent_addr, size);
+ else
+#endif
+ region = simgrid::mc::region(type, start_addr, permanent_addr, size);
+
+ region.object_info(object_info);
+ snapshot->snapshot_regions[index]
+ = std::unique_ptr<simgrid::mc::RegionSnapshot>(
+ new simgrid::mc::RegionSnapshot(std::move(region)));
+}
+
+static void get_memory_regions(simgrid::mc::RemoteClient* process, simgrid::mc::Snapshot* snapshot)
+{
+ 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,
+ object_info.get(),
+ object_info->start_rw, object_info->start_rw,
+ object_info->end_rw - object_info->start_rw);
+
+ xbt_mheap_t heap = process->get_heap();
+ void *start_heap = heap->base;
+ void *end_heap = heap->breakval;
+
+ add_region(n, snapshot, simgrid::mc::RegionType::Heap, nullptr,
+ start_heap, start_heap,
+ (char *) end_heap - (char *) start_heap);
+ snapshot->heap_bytes_used = mmalloc_get_bytes_used_remote(
+ heap->heaplimit,
+ process->get_malloc_info());
+
+#if HAVE_SMPI
+ 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
+#endif
+ snapshot->privatization_index = simgrid::mc::ProcessIndexMissing;
+}
+
+/** \brief Fills the position of the segments (executable, read-only, read/write).
+ * */
+// TODO, use the ELF segment information for more robustness
+void find_object_address(
+ std::vector<simgrid::xbt::VmMap> const& maps,
+ simgrid::mc::ObjectInformation* result)
+{
+ std::string name = simgrid::xbt::Path(result->file_name).get_base_name();
+
+ for (size_t i = 0; i < maps.size(); ++i) {
+ simgrid::xbt::VmMap const& reg = maps[i];
+ if (maps[i].pathname.empty())
+ continue;
+ std::string map_basename = simgrid::xbt::Path(maps[i].pathname).get_base_name();
+ if (map_basename != name)
+ continue;
+
+ // This is the non-GNU_RELRO-part of the data segment:
+ if (reg.prot == PROT_RW) {
+ xbt_assert(not result->start_rw, "Multiple read-write segments for %s, not supported", maps[i].pathname.c_str());
+ result->start_rw = (char*) reg.start_addr;
+ result->end_rw = (char*) reg.end_addr;
+
+ // The next VMA might be end of the data segment:
+ if (i + 1 < maps.size()
+ && maps[i + 1].pathname.empty()
+ && maps[i + 1].prot == PROT_RW
+ && maps[i + 1].start_addr == reg.end_addr)
+ result->end_rw = (char*) maps[i + 1].end_addr;
+ }
+
+ // This is the text segment:
+ else if (reg.prot == PROT_RX) {
+ xbt_assert(not result->start_exec, "Multiple executable segments for %s, not supported",
+ maps[i].pathname.c_str());
+ result->start_exec = (char*) reg.start_addr;
+ result->end_exec = (char*) reg.end_addr;
+
+ // The next VMA might be end of the data segment:
+ if (i + 1 < maps.size()
+ && maps[i + 1].pathname.empty()
+ && maps[i + 1].prot == PROT_RW
+ && maps[i + 1].start_addr == reg.end_addr) {
+ result->start_rw = (char*) maps[i + 1].start_addr;
+ result->end_rw = (char*) maps[i + 1].end_addr;
+ }
+ }
+
+ // This is the GNU_RELRO-part of the data segment:
+ else if (reg.prot == PROT_READ) {
+ xbt_assert(not result->start_ro, "Multiple read only segments for %s, not supported", maps[i].pathname.c_str());
+ result->start_ro = (char*) reg.start_addr;
+ result->end_ro = (char*) reg.end_addr;
+ }
+ }
+
+ result->start = result->start_rw;
+ if ((const void*) result->start_ro < result->start)
+ result->start = result->start_ro;
+ if ((const void*) result->start_exec < result->start)
+ result->start = result->start_exec;
+
+ result->end = result->end_rw;
+ if (result->end_ro && (const void*) result->end_ro > result->end)
+ result->end = result->end_ro;
+ if (result->end_exec && (const void*) result->end_exec > result->end)
+ result->end = result->end_exec;
+
+ xbt_assert(result->start_exec || result->start_rw || result->start_ro);
+}
+
+/************************************* Take Snapshot ************************************/
+/****************************************************************************************/
+
+/** \brief Checks whether the variable is in scope for a given IP.
+ *
+ * A variable may be defined only from a given value of IP.
+ *
+ * \param var Variable description
+ * \param scope Scope description
+ * \param ip Instruction pointer
+ * \return true if the variable is valid
+ * */
+static bool valid_variable(simgrid::mc::Variable* var,
+ simgrid::mc::Frame* scope,
+ const void *ip)
+{
+ // The variable is not yet valid:
+ if (scope->range.begin() + var->start_scope > (std::uint64_t) ip)
+ return false;
+ else
+ return true;
+}
+
+static void fill_local_variables_values(mc_stack_frame_t stack_frame, simgrid::mc::Frame* scope, int process_index,
+ std::vector<s_local_variable_t>& result)
+{
+ simgrid::mc::RemoteClient* process = &mc_model_checker->process();
+
+ if (not scope || not scope->range.contain(stack_frame->ip))
+ return;
+
+ for (simgrid::mc::Variable& current_variable : scope->variables) {
+
+ if (not valid_variable(¤t_variable, scope, (void*)stack_frame->ip))
+ continue;
+
+ int region_type;
+ // FIXME, get rid of `region_type`
+ if ((long) stack_frame->ip > (long) process->libsimgrid_info->start_exec)
+ region_type = 1;
+ else
+ region_type = 2;
+
+ s_local_variable_t new_var;
+ new_var.subprogram = stack_frame->frame;
+ new_var.ip = stack_frame->ip;
+ new_var.name = current_variable.name;
+ new_var.type = current_variable.type;
+ new_var.region = region_type;
+ new_var.address = nullptr;
+
+ if (current_variable.address != nullptr)
+ new_var.address = current_variable.address;
+ else if (not current_variable.location_list.empty()) {
+ simgrid::dwarf::Location location =
+ simgrid::dwarf::resolve(
+ current_variable.location_list,
+ current_variable.object_info,
+ &(stack_frame->unw_cursor),
+ (void *) stack_frame->frame_base,
+ &mc_model_checker->process(), process_index);
+
+ if (not location.in_memory())
+ xbt_die("Cannot handle non-address variable");
+ new_var.address = location.address();
+
+ } else
+ xbt_die("No address");
+
+ result.push_back(std::move(new_var));
+ }
+
+ // Recursive processing of nested scopes:
+ for (simgrid::mc::Frame& nested_scope : scope->scopes)
+ fill_local_variables_values(
+ stack_frame, &nested_scope, process_index, result);
+}
+
+static std::vector<s_local_variable_t> get_local_variables_values(std::vector<s_mc_stack_frame_t>& stack_frames,
+ int process_index)
+{
+ std::vector<s_local_variable_t> variables;
+ for (s_mc_stack_frame_t& stack_frame : stack_frames)
+ fill_local_variables_values(&stack_frame, stack_frame.frame, process_index, variables);
+ return variables;
+}
+
+static std::vector<s_mc_stack_frame_t> unwind_stack_frames(simgrid::mc::UnwindContext* stack_context)
+{
+ simgrid::mc::RemoteClient* process = &mc_model_checker->process();
+ std::vector<s_mc_stack_frame_t> result;
+
+ unw_cursor_t c = stack_context->cursor();
+
+ // TODO, check condition check (unw_init_local==0 means end of frame)
+
+ while (1) {
+
+ s_mc_stack_frame_t stack_frame;
+
+ stack_frame.unw_cursor = c;
+
+ unw_word_t ip;
+ unw_word_t sp;
+
+ unw_get_reg(&c, UNW_REG_IP, &ip);
+ unw_get_reg(&c, UNW_REG_SP, &sp);
+
+ stack_frame.ip = ip;
+ stack_frame.sp = sp;
+
+ // TODO, use real addresses in frame_t instead of fixing it here
+
+ simgrid::mc::Frame* frame = process->find_function(remote(ip));
+ stack_frame.frame = frame;
+
+ if (frame) {
+ stack_frame.frame_name = frame->name;
+ stack_frame.frame_base =
+ (unw_word_t) frame->frame_base(c);
+ } else {
+ stack_frame.frame_base = 0;
+ stack_frame.frame_name = std::string();
+ }
+
+ result.push_back(std::move(stack_frame));
+
+ /* Stop before context switch with maestro */
+ if (frame != nullptr &&
+ frame->name == "smx_ctx_sysv_wrapper")
+ break;
+
+ int ret = unw_step(&c);
+ if (ret == 0)
+ xbt_die("Unexpected end of stack.");
+ else if (ret < 0)
+ xbt_die("Error while unwinding stack");
+ }
+
+ if (result.empty()) {
+ XBT_INFO("unw_init_local failed");
+ xbt_abort();
+ }
+
+ return result;
+}
+
+static std::vector<s_mc_snapshot_stack_t> take_snapshot_stacks(simgrid::mc::Snapshot* snapshot)
+{
+ std::vector<s_mc_snapshot_stack_t> res;
+
+ for (auto const& stack : mc_model_checker->process().stack_areas()) {
+ s_mc_snapshot_stack_t st;
+
+ // Read the context from remote process:
+ unw_context_t context;
+ mc_model_checker->process().read_bytes(
+ &context, sizeof(context), remote(stack.context));
+
+ st.context.initialize(&mc_model_checker->process(), &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;
+
+ unw_word_t sp = st.stack_frames[0].sp;
+
+ res.push_back(std::move(st));
+
+ size_t stack_size =
+ (char*) stack.address + stack.size - (char*) sp;
+ snapshot->stack_sizes.push_back(stack_size);
+ }
+
+ return res;
+
+}
+
+static void snapshot_handle_ignore(simgrid::mc::Snapshot* snapshot)
+{
+ xbt_assert(snapshot->process());
+
+ // Copy the memory:
+ for (auto const& region : mc_model_checker->process().ignored_regions()) {
+ s_mc_snapshot_ignored_data_t ignored_data;
+ ignored_data.start = (void*)region.addr;
+ ignored_data.data.resize(region.size);
+ // TODO, we should do this once per privatization segment:
+ snapshot->process()->read_bytes(
+ ignored_data.data.data(), region.size, remote(region.addr),
+ simgrid::mc::ProcessIndexDisabled);
+ snapshot->ignored_data.push_back(std::move(ignored_data));
+ }
+
+ // Zero the memory:
+ for (auto const& region : mc_model_checker->process().ignored_regions())
+ snapshot->process()->clear_bytes(remote(region.addr), region.size);
+
+}
+
+static void snapshot_ignore_restore(simgrid::mc::Snapshot* snapshot)
+{
+ for (auto const& ignored_data : snapshot->ignored_data)
+ snapshot->process()->write_bytes(
+ ignored_data.data.data(), ignored_data.data.size(),
+ remote(ignored_data.start));
+}
+
+static std::vector<s_fd_infos_t> get_current_fds(pid_t pid)
+{
+ const size_t fd_dir_path_size = 20;
+ char fd_dir_path[fd_dir_path_size];
+ int res = snprintf(fd_dir_path, fd_dir_path_size,
+ "/proc/%lli/fd", (long long int) pid);
+ xbt_assert(res >= 0);
+ if ((size_t) res > fd_dir_path_size)
+ xbt_die("Unexpected buffer is too small for fd_dir_path");
+
+ DIR* fd_dir = opendir(fd_dir_path);
+ if (fd_dir == nullptr)
+ xbt_die("Cannot open directory '/proc/self/fd'\n");
+
+ std::vector<s_fd_infos_t> fds;
+
+ struct dirent* fd_number;
+ while ((fd_number = readdir(fd_dir))) {
+
+ int fd_value = xbt_str_parse_int(fd_number->d_name, "Found a non-numerical FD: %s. Freaking out!");
+
+ if(fd_value < 3)
+ continue;
+
+ const size_t source_size = 25;
+ char source[25];
+ int res = snprintf(source, source_size, "/proc/%lli/fd/%s",
+ (long long int) pid, fd_number->d_name);
+ xbt_assert(res >= 0);
+ if ((size_t) res > source_size)
+ xbt_die("Unexpected buffer is too small for fd %s", fd_number->d_name);
+
+ const size_t link_size = 200;
+ char link[200];
+ res = readlink(source, link, link_size);
+
+ if (res<0)
+ xbt_die("Could not read link for %s", source);
+ if (res==200)
+ xbt_die("Buffer to small for link of %s", source);
+
+ link[res] = '\0';
+
+#if HAVE_SMPI
+ if(smpi_is_privatization_file(link))
+ continue;
+#endif
+
+ // This is (probably) the DIR* we are reading:
+ // TODO, read all the file entries at once and close the DIR.*
+ if(strcmp(fd_dir_path, link) == 0)
+ continue;
+
+ // We don't handle them.
+ // It does not mean we should silently ignore them however.
+ if (strncmp(link, "pipe:", std::strlen("pipe:")) == 0 || strncmp(link, "socket:", std::strlen("socket:")) == 0)
+ continue;
+
+ // If dot_output enabled, do not handle the corresponding file
+ if (dot_output != nullptr) {
+ std::string link_basename = simgrid::xbt::Path(link).get_base_name();
+ if (link_basename == _sg_mc_dot_output_file.get())
+ continue;
+ }
+
+ // This is probably a shared memory used by lttng-ust:
+ if(strncmp("/dev/shm/ust-shm-tmp-", link, std::strlen("/dev/shm/ust-shm-tmp-"))==0)
+ continue;
+
+ // Add an entry for this FD in the snapshot:
+ s_fd_infos_t fd;
+ fd.filename = std::string(link);
+ fd.number = fd_value;
+ fd.flags = fcntl(fd_value, F_GETFL) | fcntl(fd_value, F_GETFD) ;
+ fd.current_position = lseek(fd_value, 0, SEEK_CUR);
+ fds.push_back(std::move(fd));
+ }
+
+ closedir (fd_dir);
+ return fds;
+}
+
+std::shared_ptr<simgrid::mc::Snapshot> take_snapshot(int num_state)
+{
+ XBT_DEBUG("Taking snapshot %i", num_state);
+
+ simgrid::mc::RemoteClient* mc_process = &mc_model_checker->process();
+
+ std::shared_ptr<simgrid::mc::Snapshot> snapshot = std::make_shared<simgrid::mc::Snapshot>(mc_process, num_state);
+
+ for (auto const& p : mc_model_checker->process().actors())
+ snapshot->enabled_processes.insert(p.copy.getBuffer()->pid);
+
+ snapshot_handle_ignore(snapshot.get());
+
+ if (_sg_mc_snapshot_fds)
+ snapshot->current_fds = get_current_fds(mc_model_checker->process().pid());
+
+ /* Save the std heap and the writable mapped pages of libsimgrid and binary */
+ get_memory_regions(mc_process, snapshot.get());
+
+ snapshot->to_ignore = mc_model_checker->process().ignored_heap();
+
+ if (_sg_mc_max_visited_states > 0 || not _sg_mc_property_file.get().empty()) {
+ snapshot->stacks = take_snapshot_stacks(snapshot.get());
+ if (_sg_mc_hash)
+ snapshot->hash = simgrid::mc::hash(*snapshot);
+ else
+ snapshot->hash = 0;
+ } else
+ snapshot->hash = 0;
+
+ snapshot_ignore_restore(snapshot.get());
+ return snapshot;
+}
+
+static inline
+void restore_snapshot_regions(simgrid::mc::Snapshot* snapshot)
+{
+ for (std::unique_ptr<s_mc_mem_region_t> const& region : snapshot->snapshot_regions) {
+ // For privatized, variables we decided it was not necessary to take the snapshot:
+ if (region)
+ restore(region.get());
+ }
+
+#if HAVE_SMPI
+ if(snapshot->privatization_index >= 0) {
+ // Fix the privatization mmap:
+ s_mc_message_restore_t message{MC_MESSAGE_RESTORE, snapshot->privatization_index};
+ mc_model_checker->process().getChannel().send(message);
+ }
+#endif
+}
+
+static inline
+void restore_snapshot_fds(simgrid::mc::Snapshot* snapshot)
+{
+ xbt_die("FD snapshot not implemented in client/server mode.");
+
+ for (auto const& fd : snapshot->current_fds) {
+
+ int new_fd = open(fd.filename.c_str(), fd.flags);
+ 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);
+ }
+ lseek(fd.number, fd.current_position, SEEK_SET);
+ }
+}
+
+void restore_snapshot(std::shared_ptr<simgrid::mc::Snapshot> snapshot)
+{
+ XBT_DEBUG("Restore snapshot %i", snapshot->num_state);
+ restore_snapshot_regions(snapshot.get());
+ if (_sg_mc_snapshot_fds)
+ restore_snapshot_fds(snapshot.get());
+ snapshot_ignore_restore(snapshot.get());
+ mc_model_checker->process().clear_cache();
+}
+
+}
+}
+
+#ifdef SIMGRID_TEST
+
+/* **BOOST** */
+#define BOOST_TEST_MODULE checkpoint
+#define BOOST_TEST_DYN_LINK
+#include <boost/test/unit_test.hpp>
+#include <stdio.h> // perror()
+#include <errno.h> // perror()
+#include <stdlib.h> // exit()
+#include <iostream>
+#include <functional>
+#include <sys/mman.h>
+#include <cstdlib>
+#include <cstdio>
+#include <cerrno>
+#include <cstring>
+
+void add_content(void*, int, size_t);
+size_t make_hash(char*);
+
+int add_region_BOOST()
+{
+
+ RemoteClient* this_process = new RemoteClient(getpid(), -1);
+ /* read /proc/getpid()/maps into "this_process->memory_map", etc. */
+ this_process->init();
+ simgrid::mc::Snapshot* snapshot = new simgrid::mc::Snapshot(this_process, 0); // first ckpt
+ simgrid::mc::RegionType type = simgrid::mc::RegionType::Unknown;
+ std::size_t PAGESIZE = 4096;
+ std::size_t region_num = 10;
+ std::size_t size = PAGESIZE * region_num;
+ void* addr;
+ int prot = PROT_READ|PROT_WRITE;
+ int flags = MAP_PRIVATE|MAP_ANONYMOUS;
+ if (mmap(addr, size, prot, flags, -1, 0) == (void *)-1) {
+ perror("mmap()");
+ exit(1);
+ }
+ size_t hashes[region_num];
+ void* source;
+ for(int i=0; i<region_num; ++i) {
+ source = (char*)addr + i*PAGESIZE;
+ hashes[i] = add_content(source, i, PAGESIZE);
+ add_region(i, snaphot, type, NULL, source, source, size);
+ }
+
+ BOOST_TEST((snapshot->snapshot_regions).size == 10, "snapshot_regions size");
+ /* test retrieving regions from a snapshot*/
+ for (int i=0; i<region_num; ++) {
+ // TODO: hashes of even regions should be equal
+ // and hashes of odd regions should also be equal.
+ }
+
+ /* release memory before returning */
+ if (munmap(addr, size) == -1) {
+ perror("munmap()");
+ exit(1);
+ }
+ return 1; // just for testing
+}
+
+BOOST_AUTO_TEST_SUITE(checkpoint)
+BOOST_AUTO_TEST_CASE(add_region_test) {
+ BOOST_TEST(add_region_BOOST() == 1);
+}
+BOOST_AUTO_TEST_SUITE_END()
+
+void add_content(void* addr, int index, size_t size) {
+ memset(addr, index%2+1, size);
+ memset(addr+size-1, 0, 1); // NULL-termination
+}
+
+st::hash<std::string> str_hash;
+void make_hash(char* addr) {
+ return str_hash(string(addr));
+}
+
+#endif // SIMGRID_TEST
