+#include "simgrid/sg_config.h"
+
+#include "src/internal_config.h"
+#include <stdio.h>
+#ifdef _WIN32
+#include <signal.h> /* To silence MSVC on abort() */
+#endif
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(module, xbt, "module handling");
+
+XBT_LOG_NEW_CATEGORY(smpi, "All SMPI categories"); /* lives here even if that's a bit odd to solve linking issues: this is used in xbt_log_file_appender to detect whether SMPI is used (and thus whether we should unbench the writing to disk) */
+
+char *xbt_binary_name = NULL; /* Name of the system process containing us (mandatory to retrieve neat backtraces) */
+xbt_dynar_t xbt_cmdline = NULL; /* all we got in argv */
+
+int xbt_initialized = 0;
+int _sg_do_clean_atexit = 1;
+
+int xbt_pagesize;
+int xbt_pagebits = 0;
+
+/* Declare xbt_preinit and xbt_postexit as constructor/destructor of the library.
+ * This is crude and rather compiler-specific, unfortunately.
+ */
+static void xbt_preinit(void) _XBT_GNUC_CONSTRUCTOR(200);
+static void xbt_postexit(void);
+
+#ifdef _WIN32
+# undef _XBT_NEED_INIT_PRAGMA
+#endif
+
+#ifdef _XBT_NEED_INIT_PRAGMA
+#pragma init (xbt_preinit)
+#endif
+
+#ifdef _WIN32
+#include <windows.h>
+
+#ifndef __GNUC__
+/* Should not be necessary but for some reason, DllMain is called twice at attachment and at detachment.*/
+static int xbt_dll_process_is_attached = 0;
+
+/* see also http://msdn.microsoft.com/en-us/library/ms682583%28VS.85%29.aspx */
+/* and http://www.microsoft.com/whdc/driver/kernel/DLL_bestprac.mspx */
+static BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)
+{
+ if (fdwReason == DLL_PROCESS_ATTACH
+ && xbt_dll_process_is_attached == 0) {
+ xbt_dll_process_is_attached = 1;
+ xbt_preinit();
+ } else if (fdwReason == DLL_PROCESS_DETACH
+ && xbt_dll_process_is_attached == 1) {
+ xbt_dll_process_is_attached = 0;
+ }
+ return 1;
+}
+#endif
+
+#endif
+
+static void xbt_preinit(void) {
+ unsigned int seed = 2147483647;
+#ifdef _WIN32
+ SYSTEM_INFO si;
+ GetSystemInfo(&si);
+ xbt_pagesize = si.dwPageSize;
+#elif HAVE_SYSCONF
+ xbt_pagesize = sysconf(_SC_PAGESIZE);
+#else
+ #error Cannot get page size.
+#endif
+
+ xbt_pagebits = 0;
+ int x = xbt_pagesize;
+ while(x >>= 1) {
+ ++xbt_pagebits;
+ }