[mc] Bring back KSM (MADV_MERGEABLE) support

[simgrid.git] / src / mc / mc_config.cpp

diff --git a/src/mc/mc_config.cpp b/src/mc/mc_config.cpp
index bd3578d..02ce10d 100644 (file)
--- a/src/mc/mc_config.cpp
+++ b/src/mc/mc_config.cpp
@@ -50,6 +50,7 @@ int _sg_do_model_check = 0;
 int _sg_do_model_check_record = 0;
 int _sg_mc_checkpoint = 0;
 int _sg_mc_sparse_checkpoint = 0;
+int _sg_mc_ksm = 0;
 char *_sg_mc_property_file = NULL;
 int _sg_mc_hash = 0;
 int _sg_mc_max_depth = 1000;
@@ -95,6 +96,13 @@ void _mc_cfg_cb_sparse_checkpoint(const char *name, int pos) {
   _sg_mc_sparse_checkpoint = xbt_cfg_get_boolean(_sg_cfg_set, name);
 }
 
+void _mc_cfg_cb_ksm(const char *name, int pos)
+{
+  if (_sg_cfg_init_status && !_sg_do_model_check)
+    xbt_die("You are specifying a KSM value after the initialization (through MSG_config?), but model-checking was not activated at config time (through --cfg=model-check:1). This won't work, sorry.");
+  _sg_mc_ksm = xbt_cfg_get_boolean(_sg_cfg_set, name);
+}
+
 void _mc_cfg_cb_property(const char *name, int pos)
 {
   if (_sg_cfg_init_status && !_sg_do_model_check) {