[mc] Basic support for more other libraries than libsimgrid.so

[simgrid.git] / src / mc / mc_dwarf.c

diff --git a/src/mc/mc_dwarf.c b/src/mc/mc_dwarf.c
index c1fd447..a286459 100644 (file)
--- a/src/mc/mc_dwarf.c
+++ b/src/mc/mc_dwarf.c
@@ -14,8 +14,14 @@
 #include <xbt/log.h>
 #include <xbt/sysdep.h>
 
+#include "mc_object_info.h"
 #include "mc_private.h"
 
+static void MC_dwarf_register_global_variable(mc_object_info_t info, dw_variable_t variable);
+static void MC_register_variable(mc_object_info_t info, dw_frame_t frame, dw_variable_t variable);
+static void MC_dwarf_register_non_global_variable(mc_object_info_t info, dw_frame_t frame, dw_variable_t variable);
+static void MC_dwarf_register_variable(mc_object_info_t info, dw_frame_t frame, dw_variable_t variable);
+
 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_dwarf, mc, "DWARF processing");
 
 /** \brief The default DW_TAG_lower_bound for a given DW_AT_language.
@@ -159,7 +165,6 @@ static mc_tag_class MC_dwarf_tag_classify(int tag)
   case DW_TAG_restrict_type:
   case DW_TAG_interface_type:
   case DW_TAG_unspecified_type:
-  case DW_TAG_mutable_type:
   case DW_TAG_shared_type:
     return mc_tag_type;
 
@@ -1019,7 +1024,7 @@ void MC_dwarf_get_variables(mc_object_info_t info)
   }
   Dwarf *dwarf = dwarf_begin(fd, DWARF_C_READ);
   if (dwarf == NULL) {
-    xbt_die("Your program must be compiled with -g");
+    xbt_die("Your program must be compiled with -g (%s)", info->file_name);
   }
   // For each compilation unit:
   Dwarf_Off offset = 0;
@@ -1167,48 +1172,6 @@ static void MC_make_functions_index(mc_object_info_t info)
   info->functions_index = index;
 }
 
-mc_object_info_t MC_ip_find_object_info(void *ip)
-{
-  size_t i;
-  for (i = 0; i != mc_object_infos_size; ++i) {
-    if (ip >= (void *) mc_object_infos[i]->start_exec
-        && ip <= (void *) mc_object_infos[i]->end_exec) {
-      return mc_object_infos[i];
-    }
-  }
-  return NULL;
-}
-
-static dw_frame_t MC_find_function_by_ip_and_object(void *ip,
-                                                    mc_object_info_t info)
-{
-  xbt_dynar_t dynar = info->functions_index;
-  mc_function_index_item_t base =
-      (mc_function_index_item_t) xbt_dynar_get_ptr(dynar, 0);
-  int i = 0;
-  int j = xbt_dynar_length(dynar) - 1;
-  while (j >= i) {
-    int k = i + ((j - i) / 2);
-    if (ip < base[k].low_pc) {
-      j = k - 1;
-    } else if (ip >= base[k].high_pc) {
-      i = k + 1;
-    } else {
-      return base[k].function;
-    }
-  }
-  return NULL;
-}
-
-dw_frame_t MC_find_function_by_ip(void *ip)
-{
-  mc_object_info_t info = MC_ip_find_object_info(ip);
-  if (info == NULL)
-    return NULL;
-  else
-    return MC_find_function_by_ip_and_object(ip, info);
-}
-
 static void MC_post_process_variables(mc_object_info_t info)
 {
   unsigned cursor = 0;
@@ -1259,8 +1222,53 @@ static void MC_post_process_functions(mc_object_info_t info)
   }
 }
 
+
+/** \brief Fill/lookup the "subtype" field.
+ */
+static void MC_resolve_subtype(mc_object_info_t info, dw_type_t type)
+{
+
+  if (type->dw_type_id == NULL)
+    return;
+  type->subtype = xbt_dict_get_or_null(info->types, type->dw_type_id);
+  if (type->subtype == NULL)
+    return;
+  if (type->subtype->byte_size != 0)
+    return;
+  if (type->subtype->name == NULL)
+    return;
+  // Try to find a more complete description of the type:
+  // We need to fix in order to support C++.
+
+  dw_type_t subtype =
+      xbt_dict_get_or_null(info->full_types_by_name, type->subtype->name);
+  if (subtype != NULL) {
+    type->subtype = subtype;
+  }
+
+}
+
+static void MC_post_process_types(mc_object_info_t info)
+{
+  xbt_dict_cursor_t cursor = NULL;
+  char *origin;
+  dw_type_t type;
+
+  // Lookup "subtype" field:
+  xbt_dict_foreach(info->types, cursor, origin, type) {
+    MC_resolve_subtype(info, type);
+
+    dw_type_t member;
+    unsigned int i = 0;
+    if (type->members != NULL)
+      xbt_dynar_foreach(type->members, i, member) {
+      MC_resolve_subtype(info, member);
+      }
+  }
+}
+
 /** \brief Finds informations about a given shared object/executable */
-mc_object_info_t MC_find_object_info(memory_map_t maps, char *name,
+mc_object_info_t MC_find_object_info(memory_map_t maps, const char *name,
                                      int executable)
 {
   mc_object_info_t result = MC_new_object_info();
@@ -1358,7 +1366,7 @@ void MC_dwarf_register_variable(mc_object_info_t info, dw_frame_t frame,
     MC_dwarf_register_non_global_variable(info, frame, variable);
 }
 
-void MC_post_process_object_info(mc_object_info_t info)
+void MC_post_process_object_info(mc_process_t process, mc_object_info_t info)
 {
   xbt_dict_cursor_t cursor = NULL;
   char *key = NULL;
@@ -1367,9 +1375,9 @@ void MC_post_process_object_info(mc_object_info_t info)
 
     // Resolve full_type:
     if (type->name && type->byte_size == 0) {
-      for (size_t i = 0; i != mc_object_infos_size; ++i) {
+      for (size_t i = 0; i != process->object_infos_size; ++i) {
         dw_type_t same_type =
-            xbt_dict_get_or_null(mc_object_infos[i]->full_types_by_name,
+            xbt_dict_get_or_null(process->object_infos[i]->full_types_by_name,
                                  type->name);
         if (same_type && same_type->name && same_type->byte_size) {
           type->full_type = same_type;