X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdb%2Fprogspace.c;h=3cb0d4c61e3966eb571e18b92fdb7a0fa0c8906a;hb=343cc95202fce70383551053f2efab09c5e02366;hp=0f3ac81bd016f1b1d8735f3422dc0f48a8ed5c23;hpb=4a2b031d5452226cf7894f313b3aac603f7ec5fb;p=deliverable%2Fbinutils-gdb.git

diff --git a/gdb/progspace.c b/gdb/progspace.c
index 0f3ac81bd0..3cb0d4c61e 100644
--- a/gdb/progspace.c
+++ b/gdb/progspace.c
@@ -1,6 +1,6 @@
 /* Program and address space management, for GDB, the GNU debugger.
 
-   Copyright (C) 2009-2017 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;
@@ -44,18 +47,6 @@ static int highest_address_space_num;
 
 DEFINE_REGISTRY (program_space, REGISTRY_ACCESS_FIELD)
 
-/* An address space.  It is used for comparing if pspaces/inferior/threads
-   see the same address space and for associating caches to each address
-   space.  */
-
-struct address_space
-{
-  int num;
-
-  /* Per aspace data-pointers required by other GDB modules.  */
-  REGISTRY_FIELDS;
-};
-
 /* Keep a registry of per-address_space data-pointers required by other GDB
    modules.  */
 
@@ -121,30 +112,21 @@ init_address_spaces (void)
 /* Adds a new empty program space to the program space list, and binds
    it to ASPACE.  Returns the pointer to the new object.  */
 
-struct program_space *
-add_program_space (struct address_space *aspace)
+program_space::program_space (address_space *aspace_)
+: num (++last_program_space_num), aspace (aspace_)
 {
-  struct program_space *pspace;
-
-  pspace = XCNEW (struct program_space);
-
-  pspace->num = ++last_program_space_num;
-  pspace->aspace = aspace;
-
-  program_space_alloc_data (pspace);
+  program_space_alloc_data (this);
 
   if (program_spaces == NULL)
-    program_spaces = pspace;
+    program_spaces = this;
   else
     {
       struct program_space *last;
 
       for (last = program_spaces; last->next != NULL; last = last->next)
 	;
-      last->next = pspace;
+      last->next = this;
     }
-
-  return pspace;
 }
 
 /* Releases program space PSPACE, and all its contents (shared
@@ -153,26 +135,71 @@ add_program_space (struct address_space *aspace)
    is the current program space, since there should always be a
    program space.  */
 
-static void
-release_program_space (struct program_space *pspace)
+program_space::~program_space ()
 {
-  gdb_assert (pspace != current_program_space);
+  gdb_assert (this != current_program_space);
 
   scoped_restore_current_program_space restore_pspace;
 
-  set_current_program_space (pspace);
+  set_current_program_space (this);
 
-  breakpoint_program_space_exit (pspace);
+  breakpoint_program_space_exit (this);
   no_shared_libraries (NULL, 0);
   exec_close ();
   free_all_objfiles ();
   if (!gdbarch_has_shared_address_space (target_gdbarch ()))
-    free_address_space (pspace->aspace);
-  clear_section_table (&pspace->target_sections);
-  clear_program_space_solib_cache (pspace);
+    free_address_space (this->aspace);
+  clear_section_table (&this->target_sections);
+  clear_program_space_solib_cache (this);
     /* Discard any data modules have associated with the PSPACE.  */
-  program_space_free_data (pspace);
-  xfree (pspace);
+  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 (struct objfile *objfile, struct objfile *before)
+{
+  if (before == nullptr)
+    objfiles_list.push_back (objfile);
+  else
+    {
+      auto iter = std::find (objfiles_list.begin (), objfiles_list.end (),
+			     before);
+      gdb_assert (iter != objfiles_list.end ());
+      objfiles_list.insert (iter, objfile);
+    }
+}
+
+/* See progspace.h.  */
+
+void
+program_space::remove_objfile (struct objfile *objfile)
+{
+  auto iter = std::find (objfiles_list.begin (), objfiles_list.end (),
+			 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,
@@ -189,7 +216,8 @@ 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;
 }
@@ -247,7 +275,7 @@ delete_program_space (struct program_space *pspace)
       ss = *ss_link;
     }
 
-  release_program_space (pspace);
+  delete pspace;
 }
 
 /* Prints the list of program spaces and their details on UIOUT.  If
@@ -293,7 +321,7 @@ 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);
@@ -314,12 +342,12 @@ 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");
@@ -345,7 +373,7 @@ valid_program_space_id (int num)
    indicating which the program space to print information about.  */
 
 static void
-maintenance_info_program_spaces_command (char *args, int from_tty)
+maintenance_info_program_spaces_command (const char *args, int from_tty)
 {
   int requested = -1;
 
@@ -422,10 +450,8 @@ update_address_spaces (void)
 void
 clear_program_space_solib_cache (struct program_space *pspace)
 {
-  VEC_free (so_list_ptr, pspace->added_solibs);
-
-  free_char_ptr_vec (pspace->deleted_solibs);
-  pspace->deleted_solibs = NULL;
+  pspace->added_solibs.clear ();
+  pspace->deleted_solibs.clear ();
 }
 
 
@@ -445,5 +471,5 @@ initialize_progspace (void)
      modules have done that.  Do this before
      initialize_current_architecture, because that accesses exec_bfd,
      which in turn dereferences current_program_space.  */
-  current_program_space = add_program_space (new_address_space ());
+  current_program_space = new program_space (new_address_space ());
 }