Move free_all_objfiles to program_space

This changes free_all_objfiles to be a method on program_space, in
line with the other changes to treat program_space as a container for
objfiles.

gdb/ChangeLog
2019-12-12  Tom Tromey  <tom@tromey.com>

	* symfile.c (symbol_file_clear): Update.
	* progspace.h (struct program_space) <free_all_objfiles>: Declare
	method.
	* progspace.c (program_space::free_all_objfiles): New method.
	* objfiles.h (free_all_objfiles): Don't declare.
	* objfiles.c (free_all_objfiles): Move to program_space.

Change-Id: I908b549d2981b6005f7ca181fc0e6d24fc8b7b6f

6 files changed, 31 insertions, 18 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 9b96f3d..9c1322d 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,14 @@
 2019-12-12  Tom Tromey  <tom@tromey.com>
 
+	* symfile.c (symbol_file_clear): Update.
+	* progspace.h (struct program_space) <free_all_objfiles>: Declare
+	method.
+	* progspace.c (program_space::free_all_objfiles): New method.
+	* objfiles.h (free_all_objfiles): Don't declare.
+	* objfiles.c (free_all_objfiles): Move to program_space.
+
+2019-12-12  Tom Tromey  <tom@tromey.com>
+
 	* progspace.c (program_space::add_objfile)
 	(program_space::remove_objfile): Update.
 	(program_space::multi_objfile_p): Remove.
diff --git a/gdb/objfiles.c b/gdb/objfiles.c
index 31265c1..56854cc 100644
--- a/gdb/objfiles.c
+++ b/gdb/objfiles.c
@@ -618,21 +618,6 @@ objfile::~objfile ()
   get_objfile_pspace_data (pspace)->section_map_dirty = 1;
 }
 
-/* Free all the object files at once and clean up their users.  */
-
-void
-free_all_objfiles (void)
-{
-  struct so_list *so;
-
-  /* Any objfile reference would become stale.  */
-  for (so = master_so_list (); so; so = so->next)
-    gdb_assert (so->objfile == NULL);
-
-  for (objfile *objfile : current_program_space->objfiles_safe ())
-    objfile->unlink ();
-  clear_symtab_users (0);
-}
 
 /* A helper function for objfile_relocate1 that relocates a single
    symbol.  */
diff --git a/gdb/objfiles.h b/gdb/objfiles.h
index f9bf102..3424055 100644
--- a/gdb/objfiles.h
+++ b/gdb/objfiles.h
@@ -662,8 +662,6 @@ extern void build_objfile_section_table (struct objfile *);
 
 extern void free_objfile_separate_debug (struct objfile *);
 
-extern void free_all_objfiles (void);
-
 extern void objfile_relocate (struct objfile *, const struct section_offsets *);
 extern void objfile_rebase (struct objfile *, CORE_ADDR);
 
diff --git a/gdb/progspace.c b/gdb/progspace.c
index d1bf0c6..3cb0d4c 100644
--- a/gdb/progspace.c
+++ b/gdb/progspace.c
@@ -23,6 +23,7 @@
 #include "arch-utils.h"
 #include "gdbcore.h"
 #include "solib.h"
+#include "solist.h"
 #include "gdbthread.h"
 #include "inferior.h"
 #include <algorithm>
@@ -157,6 +158,23 @@ program_space::~program_space ()
 /* 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)
diff --git a/gdb/progspace.h b/gdb/progspace.h
index a731eb6..6945e38 100644
--- a/gdb/progspace.h
+++ b/gdb/progspace.h
@@ -179,6 +179,9 @@ struct program_space
     return objfiles_list.size () > 1;
   }
 
+  /* Free all the objfiles associated with this program space.  */
+  void free_all_objfiles ();
+
 
   /* Pointer to next in linked list.  */
   struct program_space *next = NULL;
diff --git a/gdb/symfile.c b/gdb/symfile.c
index 9652371..8852e28 100644
--- a/gdb/symfile.c
+++ b/gdb/symfile.c
@@ -1251,7 +1251,7 @@ symbol_file_clear (int from_tty)
      objfiles get stale by free_all_objfiles.  */
   no_shared_libraries (NULL, from_tty);
 
-  free_all_objfiles ();
+  current_program_space->free_all_objfiles ();
 
   gdb_assert (symfile_objfile == NULL);
   if (from_tty)