gdb: pass program space to no_shared_libraries

Make the current program space reference bubble up one level.  Pass
`current_program_space` everywhere, except in some cases where we can
get the pspace another way, and it's relatively obvious that it's the
same as the current program space.

Change-Id: Id86b79f1e44f92a398f49d137d57457174dfa96d
Approved-By: Tom Tromey <tom@tromey.com>
Reviewed-By: Thiago Jung Bauermann <thiago.bauermann@linaro.org>

gdb/infcmd.c

@@ -2827,7 +2827,7 @@ detach_command (const char *args, int from_tty)
   /* If the solist is global across inferiors, don't clear it when we
      detach from a single inferior.  */
   if (!gdbarch_has_global_solist (inf->arch ()))
-    no_shared_libraries ();
+    no_shared_libraries (inf->pspace);
 
   if (deprecated_detach_hook)
     deprecated_detach_hook ();
@@ -2853,7 +2853,7 @@ disconnect_command (const char *args, int from_tty)
   query_if_trace_running (from_tty);
   disconnect_tracing ();
   target_disconnect (args, from_tty);
-  no_shared_libraries ();
+  no_shared_libraries (current_program_space);
   init_thread_list ();
   update_previous_thread ();
   if (deprecated_detach_hook)

gdb/infrun.c

@@ -1317,7 +1317,7 @@ follow_exec (ptid_t ptid, const char *exec_file_target)
   /* Also, loading a symbol file below may trigger symbol lookups, and
      we don't want those to be satisfied by the libraries of the
      previous incarnation of this process.  */
-  no_shared_libraries ();
+  no_shared_libraries (current_program_space);
 
   inferior *execing_inferior = current_inferior ();
   inferior *following_inferior;

gdb/progspace.c

@@ -115,7 +115,7 @@ program_space::~program_space ()
   set_current_program_space (this);
 
   breakpoint_program_space_exit (this);
-  no_shared_libraries ();
+  no_shared_libraries (this);
   free_all_objfiles ();
   /* Defer breakpoint re-set because we don't want to create new
      locations for this pspace which we're tearing down.  */

gdb/remote.c

@@ -6271,7 +6271,7 @@ remote_target::open_1 (const char *name, int from_tty, int extended_p)
     }
 
   /* First delete any symbols previously loaded from shared libraries.  */
-  no_shared_libraries ();
+  no_shared_libraries (current_program_space);
 
   /* Start the remote connection.  If error() or QUIT, discard this
      target (we'd otherwise be in an inconsistent state) and then

gdb/solib.c

@@ -1237,15 +1237,15 @@ sharedlibrary_command (const char *args, int from_tty)
 /* See solib.h.  */
 
 void
-no_shared_libraries ()
+no_shared_libraries (program_space *pspace)
 {
   /* The order of the two routines below is important: clear_solib notifies
      the solib_unloaded observers, and some of these observers might need
      access to their associated objfiles.  Therefore, we can not purge the
      solibs' objfiles before clear_solib has been called.  */
 
-  clear_solib (current_program_space);
-  objfile_purge_solibs (current_program_space);
+  clear_solib (pspace);
+  objfile_purge_solibs (pspace);
 }
 
 /* Implements the command "nosharedlibrary", which discards symbols
@@ -1256,7 +1256,7 @@ no_shared_libraries ()
 static void
 no_shared_libraries_command (const char *ignored, int from_tty)
 {
-  no_shared_libraries ();
+  no_shared_libraries (current_program_space);
 }
 
 /* See solib.h.  */

gdb/solib.h

@@ -80,9 +80,9 @@ extern bool solib_keep_data_in_core (CORE_ADDR vaddr, unsigned long size);
 
 extern bool in_solib_dynsym_resolve_code (CORE_ADDR);
 
-/* Discard symbols that were auto-loaded from shared libraries.  */
+/* Discard symbols that were auto-loaded from shared libraries in PSPACE.  */
 
-extern void no_shared_libraries ();
+extern void no_shared_libraries (program_space *pspace);
 
 /* Synchronize GDB's shared object list with inferior's.
 

gdb/symfile.c

@@ -1209,7 +1209,7 @@ symbol_file_clear (int from_tty)
 
   /* solib descriptors may have handles to objfiles.  Wipe them before their
      objfiles get stale by free_all_objfiles.  */
-  no_shared_libraries ();
+  no_shared_libraries (current_program_space);
 
   current_program_space->free_all_objfiles ();
 

gdb/target.c

@@ -2452,7 +2452,7 @@ target_pre_inferior ()
      memory regions and features.  */
   if (!gdbarch_has_global_solist (current_inferior ()->arch ()))
     {
-      no_shared_libraries ();
+      no_shared_libraries (current_program_space);
 
       invalidate_target_mem_regions ();