#include <algorithm>
#include <cfloat> /* DBL_MAX */
+#include <cinttypes>
+#include <cstdint> /* intmax_t */
#include <dlfcn.h>
#include <fcntl.h>
#include <fstream>
# define MAC_OS_X_VERSION_10_12 101200
# endif
# define HAVE_WORKING_MMAP (MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_12)
-#elif defined(__FreeBSD__)
+#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
# define HAVE_WORKING_MMAP 0
#else
# define HAVE_WORKING_MMAP 1
extern "C" void _gfortran_set_args(int, char **);
#endif
+/* RTLD_DEEPBIND is a bad idea of GNU ld that obviously does not exist on other platforms
+ * See https://www.akkadia.org/drepper/dsohowto.pdf
+ * and https://lists.freebsd.org/pipermail/freebsd-current/2016-March/060284.html
+*/
+#if !defined(RTLD_DEEPBIND) || HAVE_SANITIZER_ADDRESS || HAVE_SANITIZER_THREAD
+#define WANT_RTLD_DEEPBIND 0
+#else
+#define WANT_RTLD_DEEPBIND RTLD_DEEPBIND
+#endif
+
#if HAVE_PAPI
#include "papi.h"
std::string papi_default_config_name = "default";
}
void smpi_process_init(int *argc, char ***argv){
- simgrid::smpi::ActorExt::init(argc, argv);
-}
-
-int smpi_process_index(){
- return simgrid::s4u::this_actor::get_pid();
+ simgrid::smpi::ActorExt::init();
}
void * smpi_process_get_user_data(){
typedef int (* smpi_c_entry_point_type)(int argc, char **argv);
typedef void (*smpi_fortran_entry_point_type)();
-static int smpi_run_entry_point(smpi_entry_point_type entry_point, std::vector<std::string> args)
+static int smpi_run_entry_point(smpi_entry_point_type entry_point, const std::string& executable_path,
+ std::vector<std::string> args)
{
// copy C strings, we need them writable
std::vector<char*>* args4argv = new std::vector<char*>(args.size());
std::transform(begin(args), end(args), begin(*args4argv), [](const std::string& s) { return xbt_strdup(s.c_str()); });
+ // set argv[0] to executable_path
+ xbt_free((*args4argv)[0]);
+ (*args4argv)[0] = xbt_strdup(executable_path.c_str());
+
#if !SMPI_IFORT
// take a copy of args4argv to keep reference of the allocated strings
const std::vector<char*> args2str(*args4argv);
args4argv->push_back(nullptr);
char** argv = args4argv->data();
- simgrid::smpi::ActorExt::init(&argc, &argv);
+ simgrid::smpi::ActorExt::init();
#if SMPI_IFORT
for_rtl_init_ (&argc, argv);
#elif SMPI_FLANG
int fdout = open(target.c_str(), O_CREAT | O_RDWR, S_IRWXU);
xbt_assert(fdout >= 0, "Cannot write into %s", target.c_str());
- XBT_DEBUG("Copy %ld bytes into %s", static_cast<long>(fdin_size), target.c_str());
+ XBT_DEBUG("Copy %" PRIdMAX " bytes into %s", static_cast<intmax_t>(fdin_size), target.c_str());
+ bool slow_copy = true;
#if HAVE_SENDFILE
ssize_t sent_size = sendfile(fdout, fdin, NULL, fdin_size);
- xbt_assert(sent_size == fdin_size, "Error while copying %s: only %zd bytes copied instead of %ld (errno: %d -- %s)",
- target.c_str(), sent_size, fdin_size, errno, strerror(errno));
-#else
- const int bufsize = 1024 * 1024 * 4;
- char buf[bufsize];
- while (int got = read(fdin, buf, bufsize)) {
- if (got == -1) {
- xbt_assert(errno == EINTR, "Cannot read from %s", src.c_str());
- } else {
- char* p = buf;
- int todo = got;
- while (int done = write(fdout, p, todo)) {
- if (done == -1) {
- xbt_assert(errno == EINTR, "Cannot write into %s", target.c_str());
- } else {
- p += done;
- todo -= done;
+ if (sent_size == fdin_size)
+ slow_copy = false;
+ else if (sent_size != -1 || errno != ENOSYS)
+ xbt_die("Error while copying %s: only %zd bytes copied instead of %" PRIdMAX " (errno: %d -- %s)", target.c_str(),
+ sent_size, static_cast<intmax_t>(fdin_size), errno, strerror(errno));
+#endif
+ if (slow_copy) {
+ const int bufsize = 1024 * 1024 * 4;
+ char buf[bufsize];
+ while (int got = read(fdin, buf, bufsize)) {
+ if (got == -1) {
+ xbt_assert(errno == EINTR, "Cannot read from %s", src.c_str());
+ } else {
+ char* p = buf;
+ int todo = got;
+ while (int done = write(fdout, p, todo)) {
+ if (done == -1) {
+ xbt_assert(errno == EINTR, "Cannot write into %s", target.c_str());
+ } else {
+ p += done;
+ todo -= done;
+ }
}
}
}
}
-#endif
close(fdin);
close(fdout);
}
}
#endif
-static void smpi_init_privatization_dlopen(std::string executable)
+static void smpi_init_privatization_dlopen(const std::string& executable)
{
// Prepare the copy of the binary (get its size)
struct stat fdin_stat;
simix_global->default_function = [executable, fdin_size](std::vector<std::string> args) {
return std::function<void()>([executable, fdin_size, args] {
-
// Copy the dynamic library:
std::string target_executable =
executable + "_" + std::to_string(getpid()) + "_" + std::to_string(rank) + ".so";
rank++;
// Load the copy and resolve the entry point:
- void* handle = dlopen(target_executable.c_str(), RTLD_LAZY | RTLD_LOCAL);
+ void* handle = dlopen(target_executable.c_str(), RTLD_LAZY | RTLD_LOCAL | WANT_RTLD_DEEPBIND);
int saved_errno = errno;
if (simgrid::config::get_value<bool>("smpi/keep-temps") == false) {
unlink(target_executable.c_str());
smpi_entry_point_type entry_point = smpi_resolve_function(handle);
if (not entry_point)
xbt_die("Could not resolve entry point");
- smpi_run_entry_point(entry_point, args);
+ smpi_run_entry_point(entry_point, executable, args);
});
};
}
-static void smpi_init_privatization_no_dlopen(std::string executable)
+static void smpi_init_privatization_no_dlopen(const std::string& executable)
{
if (smpi_privatize_global_variables == SmpiPrivStrategies::MMAP)
smpi_prepare_global_memory_segment();
smpi_backup_global_memory_segment();
// Execute the same entry point for each simulated process:
- simix_global->default_function = [entry_point](std::vector<std::string> args) {
- return std::function<void()>([entry_point, args] { smpi_run_entry_point(entry_point, args); });
+ simix_global->default_function = [entry_point, executable](std::vector<std::string> args) {
+ return std::function<void()>(
+ [entry_point, executable, args] { smpi_run_entry_point(entry_point, executable, args); });
};
}
