gdb/

	* infrun.c (follow_exec): Replace symbol_file_add_main by
	symbol_file_add with SYMFILE_DEFER_BP_RESET, set_initial_language and
	breakpoint_re_set.
	* m32r-rom.c (m32r_load, m32r_upload_command): Use parameter 0 for
	clear_symtab_users.
	* objfiles.c (free_all_objfiles): Likewise.
	* remote-m32r-sdi.c (m32r_load): Likewise.
	* solib-som.c (som_solib_create_inferior_hook): Likewise.
	* symfile.c (new_symfile_objfile): New comment for add_flags.  Call
	clear_symtab_users with ADD_FLAGS.
	(reread_symbols): Use parameter 0 for clear_symtab_users.
	(clear_symtab_users): New parameter add_flags.  Do not call
	breakpoint_re_set if SYMFILE_DEFER_BP_RESET.
	(clear_symtab_users_cleanup): Use parameter 0 for clear_symtab_users.
	* symtab.h (clear_symtab_users): New parameter add_flags.

gdb/testsuite/
	* gdb.base/pie-execl.exp: New file.
	* gdb.base/pie-execl.c: New file.

1 files changed, 8 insertions, 7 deletions

diff --git a/gdb/symfile.c b/gdb/symfile.c
index 91f0765..cfbfd55 100644
--- a/gdb/symfile.c
+++ b/gdb/symfile.c
@@ -1038,7 +1038,7 @@ syms_from_objfile (struct objfile *objfile,
 
 /* Perform required actions after either reading in the initial
    symbols for a new objfile, or mapping in the symbols from a reusable
-   objfile. */
+   objfile.  ADD_FLAGS is a bitmask of enum symfile_add_flags.  */
 
 void
 new_symfile_objfile (struct objfile *objfile, int add_flags)
@@ -1051,7 +1051,7 @@ new_symfile_objfile (struct objfile *objfile, int add_flags)
       /* OK, make it the "real" symbol file.  */
       symfile_objfile = objfile;
 
-      clear_symtab_users ();
+      clear_symtab_users (add_flags);
     }
   else if ((add_flags & SYMFILE_DEFER_BP_RESET) == 0)
     {
@@ -2530,7 +2530,7 @@ reread_symbols (void)
       /* Notify objfiles that we've modified objfile sections.  */
       objfiles_changed ();
 
-      clear_symtab_users ();
+      clear_symtab_users (0);
       /* At least one objfile has changed, so we can consider that
          the executable we're debugging has changed too.  */
       observer_notify_executable_changed ();
@@ -2748,10 +2748,10 @@ allocate_symtab (const char *filename, struct objfile *objfile)
 
 
 /* Reset all data structures in gdb which may contain references to symbol
-   table data.  */
+   table data.  ADD_FLAGS is a bitmask of enum symfile_add_flags.  */
 
 void
-clear_symtab_users (void)
+clear_symtab_users (int add_flags)
 {
   /* Someday, we should do better than this, by only blowing away
      the things that really need to be blown.  */
@@ -2761,7 +2761,8 @@ clear_symtab_users (void)
   clear_current_source_symtab_and_line ();
 
   clear_displays ();
-  breakpoint_re_set ();
+  if ((add_flags & SYMFILE_DEFER_BP_RESET) == 0)
+    breakpoint_re_set ();
   set_default_breakpoint (0, NULL, 0, 0, 0);
   clear_pc_function_cache ();
   observer_notify_new_objfile (NULL);
@@ -2780,7 +2781,7 @@ clear_symtab_users (void)
 static void
 clear_symtab_users_cleanup (void *ignore)
 {
-  clear_symtab_users ();
+  clear_symtab_users (0);
 }
 
 /* OVERLAYS: