Manage objfiles with shared_ptr

[deliverable/binutils-gdb.git] / gdb / progspace.c

diff --git a/gdb/progspace.c b/gdb/progspace.c
index e0bcc5a18d68a0dced558098eca37a39f7d28987..1d8aaea2caa8d13737ba1be5e021be422f7cc0eb 100644 (file)
--- a/gdb/progspace.c
+++ b/gdb/progspace.c
@@ -1,6 +1,6 @@
 /* Program and address space management, for GDB, the GNU debugger.
 
-   Copyright (C) 2009-2018 Free Software Foundation, Inc.
+   Copyright (C) 2009-2019 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -23,7 +23,10 @@
 #include "arch-utils.h"
 #include "gdbcore.h"
 #include "solib.h"
+#include "solist.h"
 #include "gdbthread.h"
+#include "inferior.h"
+#include <algorithm>
 
 /* The last program space number assigned.  */
 int last_program_space_num = 0;
@@ -152,6 +155,60 @@ program_space::~program_space ()
   program_space_free_data (this);
 }
 
+/* See progspace.h.  */
+
+void
+program_space::free_all_objfiles ()
+{
+  struct so_list *so;
+
+  /* Any objfile reference would become stale.  */
+  for (so = master_so_list (); so; so = so->next)
+    gdb_assert (so->objfile == NULL);
+
+  while (!objfiles_list.empty ())
+    objfiles_list.front ()->unlink ();
+
+  clear_symtab_users (0);
+}
+
+/* See progspace.h.  */
+
+void
+program_space::add_objfile (std::shared_ptr<objfile> &&objfile,
+                           struct objfile *before)
+{
+  if (before == nullptr)
+    objfiles_list.push_back (std::move (objfile));
+  else
+    {
+      auto iter = std::find_if (objfiles_list.begin (), objfiles_list.end (),
+                               [=] (const std::shared_ptr<::objfile> &objf)
+                               {
+                                 return objf.get () == before;
+                               });
+      gdb_assert (iter != objfiles_list.end ());
+      objfiles_list.insert (iter, std::move (objfile));
+    }
+}
+
+/* See progspace.h.  */
+
+void
+program_space::remove_objfile (struct objfile *objfile)
+{
+  auto iter = std::find_if (objfiles_list.begin (), objfiles_list.end (),
+                           [=] (const std::shared_ptr<::objfile> &objf)
+                           {
+                             return objf.get () == objfile;
+                           });
+  gdb_assert (iter != objfiles_list.end ());
+  objfiles_list.erase (iter);
+
+  if (objfile == symfile_object_file)
+    symfile_object_file = NULL;
+}
+
 /* Copies program space SRC to DEST.  Copies the main executable file,
    and the main symbol file.  Returns DEST.  */
 
@@ -166,7 +223,8 @@ clone_program_space (struct program_space *dest, struct program_space *src)
     exec_file_attach (src->pspace_exec_filename, 0);
 
   if (src->symfile_object_file != NULL)
-    symbol_file_add_main (objfile_name (src->symfile_object_file), 0);
+    symbol_file_add_main (objfile_name (src->symfile_object_file),
+                         SYMFILE_DEFER_BP_RESET);
 
   return dest;
 }
@@ -270,7 +328,7 @@ print_program_space (struct ui_out *uiout, int requested)
       else
        uiout->field_skip ("current");
 
-      uiout->field_int ("id", pspace->num);
+      uiout->field_signed ("id", pspace->num);
 
       if (pspace->pspace_exec_filename)
        uiout->field_string ("exec", pspace->pspace_exec_filename);
@@ -291,12 +349,12 @@ print_program_space (struct ui_out *uiout, int requested)
                printed_header = 1;
                printf_filtered ("\n\tBound inferiors: ID %d (%s)",
                                 inf->num,
-                                target_pid_to_str (pid_to_ptid (inf->pid)));
+                                target_pid_to_str (ptid_t (inf->pid)).c_str ());
              }
            else
              printf_filtered (", ID %d (%s)",
                               inf->num,
-                              target_pid_to_str (pid_to_ptid (inf->pid)));
+                              target_pid_to_str (ptid_t (inf->pid)).c_str ());
          }
 
       uiout->text ("\n");
@@ -399,8 +457,7 @@ update_address_spaces (void)
 void
 clear_program_space_solib_cache (struct program_space *pspace)
 {
-  VEC_free (so_list_ptr, pspace->added_solibs);
-
+  pspace->added_solibs.clear ();
   pspace->deleted_solibs.clear ();
 }