1 files changed, 78 insertions, 26 deletions

diff --git a/gdb/solib.c b/gdb/solib.c
index 137fc709fd4..5b5b05f2f2f 100644
--- a/gdb/solib.c
+++ b/gdb/solib.c
@@ -46,6 +46,8 @@
 
 /* external data declarations */
 
+int debug_solib;
+
 /* FIXME: gdbarch needs to control this variable */
 struct target_so_ops *current_target_so_ops;
 
@@ -68,6 +70,8 @@ static char *solib_absolute_prefix = NULL;
    and LD_LIBRARY_PATH.  */
 static char *solib_search_path = NULL;
 
+void add_to_target_sections (int, struct target_ops *, struct so_list *);
+
 /*
 
    GLOBAL FUNCTION
@@ -340,7 +344,6 @@ master_so_list (void)
   return so_list_head;
 }
 
-
 /* A small stub to get us past the arg-passing pinhole of catch_errors.  */
 
 static int
@@ -352,15 +355,40 @@ symbol_add_stub (void *arg)
   /* Have we already loaded this shared object?  */
   ALL_OBJFILES (so->objfile)
     {
-      if (strcmp (so->objfile->name, so->so_name) == 0)
+      /* Found an already loaded shared library.  */
+      if (strcmp (so->objfile->name, so->so_name) == 0
+          && !so->main)
 	return 1;
+      /* Found an already loaded main executable.  This could happen in
+         two circumstances. 
+         First case: the main file has already been read in
+         as the first thing that gdb does at startup, and the file
+         hasn't been relocated properly yet. Therefor we need to read
+         it in with the proper section info.
+         Second case: it has been read in with the correct relocation,
+         and therefore we need to skip it.  */
+      if (strcmp (so->objfile->name, so->so_name) == 0 
+          && so->main
+          && so->main_relocated)
+        return 1;
     }
 
   sap = build_section_addr_info_from_section_table (so->sections,
                                                     so->sections_end);
 
-  so->objfile = symbol_file_add (so->so_name, so->from_tty,
-				 sap, 0, OBJF_SHARED);
+  if (so->main)
+    {
+      if (debug_solib)
+        fprintf_unfiltered (gdb_stdlog,
+			    "symbol_add_stub: adding symbols for main\n");
+      so->objfile = symbol_file_add (so->so_name, /*so->from_tty*/ 0,
+   				     sap, 1, 0);
+      so->main_relocated = 1;
+    }
+  else
+    so->objfile = symbol_file_add (so->so_name, so->from_tty,
+				   sap, 0, OBJF_SHARED);
+
   free_section_addr_info (sap);
 
   return (1);
@@ -455,6 +483,10 @@ update_solib_list (int from_tty, struct target_ops *target)
 	 the inferior's current list.  */
       while (i)
 	{
+          if (debug_solib)
+            fprintf_unfiltered (gdb_stdlog,
+                                "update_solib_list: compare gdb:%s and inferior:%s\n",
+                                gdb->so_original_name, i->so_original_name);
 	  if (! strcmp (gdb->so_original_name, i->so_original_name))
 	    break;
 
@@ -504,32 +536,46 @@ update_solib_list (int from_tty, struct target_ops *target)
       /* Fill in the rest of each of the `struct so_list' nodes.  */
       for (i = inferior; i; i = i->next)
 	{
-	  i->from_tty = from_tty;
-
-	  /* Fill in the rest of the `struct so_list' node.  */
-	  catch_errors (solib_map_sections, i,
-			"Error while mapping shared library sections:\n",
-			RETURN_MASK_ALL);
-
-	  /* If requested, add the shared object's sections to the TARGET's
-	     section table.  Do this immediately after mapping the object so
-	     that later nodes in the list can query this object, as is needed
-	     in solib-osf.c.  */
-	  if (target)
-	    {
-	      int count = (i->sections_end - i->sections);
-	      if (count > 0)
-		{
-		  int space = target_resize_to_sections (target, count);
-		  memcpy (target->to_sections + space,
-			  i->sections,
-			  count * sizeof (i->sections[0]));
-		}
-	    }
+   	  add_to_target_sections (from_tty, target, i);
 	}
     }
 }
 
+void
+add_to_target_sections (int from_tty, struct target_ops *target, struct so_list *solib)
+{
+  /* If this is set, then the sections have been already added to the
+     target list.  */
+  if (solib->main)
+    return;
+
+  solib->from_tty = from_tty;
+
+  /* Fill in the rest of the `struct so_list' node.  */
+  catch_errors (solib_map_sections, solib,
+		"Error while mapping shared library sections:\n",
+		RETURN_MASK_ALL);
+
+  /* If requested, add the shared object's sections to the TARGET's
+     section table.  Do this immediately after mapping the object so
+     that later nodes in the list can query this object, as is needed
+     in solib-osf.c.  */
+  if (target)
+    {
+      int count = (solib->sections_end - solib->sections);
+      if (count > 0)
+	{
+	  int space = target_resize_to_sections (target, count);
+          if (debug_solib)
+             fprintf_unfiltered (gdb_stdlog,
+                                 "add_to_target_sections: add %s to to_sections\n",
+                                 solib->so_original_name);
+	  memcpy (target->to_sections + space,
+		  solib->sections,
+		  count * sizeof (solib->sections[0]));
+	}
+    }
+}
 
 /* GLOBAL FUNCTION
 
@@ -917,4 +963,10 @@ This takes precedence over the environment variables PATH and LD_LIBRARY_PATH.",
   add_show_from_set (c, &showlist);
   set_cmd_cfunc (c, reload_shared_libraries);
   set_cmd_completer (c, filename_completer);
+
+  add_show_from_set (add_set_cmd ("solib", no_class, var_zinteger,
+                                 (char *) &debug_solib,
+                                 "Set debugging of GNU/Linux shlib module.\n\
+Enables printf debugging output.\n", &setdebuglist), &showdebuglist);
+
 }