/* Program and address space management, for GDB, the GNU debugger.
- Copyright (C) 2009-2015 Free Software Foundation, Inc.
+ Copyright (C) 2009-2018 Free Software Foundation, Inc.
This file is part of GDB.
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. */
program_space_alloc_data (pspace);
- pspace->next = program_spaces;
- program_spaces = pspace;
+ if (program_spaces == NULL)
+ program_spaces = pspace;
+ else
+ {
+ struct program_space *last;
+
+ for (last = program_spaces; last->next != NULL; last = last->next)
+ ;
+ last->next = pspace;
+ }
return pspace;
}
static void
release_program_space (struct program_space *pspace)
{
- struct cleanup *old_chain = save_current_program_space ();
-
gdb_assert (pspace != current_program_space);
+ scoped_restore_current_program_space restore_pspace;
+
set_current_program_space (pspace);
breakpoint_program_space_exit (pspace);
/* Discard any data modules have associated with the PSPACE. */
program_space_free_data (pspace);
xfree (pspace);
-
- do_cleanups (old_chain);
}
/* Copies program space SRC to DEST. Copies the main executable file,
struct program_space *
clone_program_space (struct program_space *dest, struct program_space *src)
{
- struct cleanup *old_chain;
-
- old_chain = save_current_program_space ();
+ scoped_restore_current_program_space restore_pspace;
set_current_program_space (dest);
if (src->symfile_object_file != NULL)
symbol_file_add_main (objfile_name (src->symfile_object_file), 0);
- do_cleanups (old_chain);
return dest;
}
reinit_frame_cache ();
}
-/* A cleanups callback, helper for save_current_program_space
- below. */
-
-static void
-restore_program_space (void *arg)
-{
- struct program_space *saved_pspace = (struct program_space *) arg;
-
- set_current_program_space (saved_pspace);
-}
-
-/* Save the current program space so that it may be restored by a later
- call to do_cleanups. Returns the struct cleanup pointer needed for
- later doing the cleanup. */
-
-struct cleanup *
-save_current_program_space (void)
-{
- struct cleanup *old_chain = make_cleanup (restore_program_space,
- current_program_space);
-
- return old_chain;
-}
-
/* Returns true iff there's no inferior bound to PSPACE. */
int
{
struct program_space *pspace;
int count = 0;
- struct cleanup *old_chain;
/* Compute number of pspaces we will print. */
ALL_PSPACES (pspace)
/* There should always be at least one. */
gdb_assert (count > 0);
- old_chain = make_cleanup_ui_out_table_begin_end (uiout, 3, count, "pspaces");
- ui_out_table_header (uiout, 1, ui_left, "current", "");
- ui_out_table_header (uiout, 4, ui_left, "id", "Id");
- ui_out_table_header (uiout, 17, ui_left, "exec", "Executable");
- ui_out_table_body (uiout);
+ ui_out_emit_table table_emitter (uiout, 3, count, "pspaces");
+ uiout->table_header (1, ui_left, "current", "");
+ uiout->table_header (4, ui_left, "id", "Id");
+ uiout->table_header (17, ui_left, "exec", "Executable");
+ uiout->table_body ();
ALL_PSPACES (pspace)
{
- struct cleanup *chain2;
struct inferior *inf;
int printed_header;
if (requested != -1 && requested != pspace->num)
continue;
- chain2 = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
+ ui_out_emit_tuple tuple_emitter (uiout, NULL);
if (pspace == current_program_space)
- ui_out_field_string (uiout, "current", "*");
+ uiout->field_string ("current", "*");
else
- ui_out_field_skip (uiout, "current");
+ uiout->field_skip ("current");
- ui_out_field_int (uiout, "id", pspace->num);
+ uiout->field_int ("id", pspace->num);
if (pspace->pspace_exec_filename)
- ui_out_field_string (uiout, "exec", pspace->pspace_exec_filename);
+ uiout->field_string ("exec", pspace->pspace_exec_filename);
else
- ui_out_field_skip (uiout, "exec");
+ uiout->field_skip ("exec");
/* Print extra info that doesn't really fit in tabular form.
Currently, we print the list of inferiors bound to a pspace.
target_pid_to_str (pid_to_ptid (inf->pid)));
}
- ui_out_text (uiout, "\n");
- do_cleanups (chain2);
+ uiout->text ("\n");
}
-
- do_cleanups (old_chain);
}
/* Boolean test for an already-known program space id. */
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;
inf->aspace = inf->pspace->aspace;
}
-/* Save the current program space so that it may be restored by a later
- call to do_cleanups. Returns the struct cleanup pointer needed for
- later doing the cleanup. */
-
-struct cleanup *
-save_current_space_and_thread (void)
-{
- struct cleanup *old_chain;
-
- /* If restoring to null thread, we need to restore the pspace as
- well, hence, we need to save the current program space first. */
- old_chain = save_current_program_space ();
- /* There's no need to save the current inferior here.
- That is handled by make_cleanup_restore_current_thread. */
- make_cleanup_restore_current_thread ();
-
- return old_chain;
-}
-
-/* See progspace.h */
-
-void
-switch_to_program_space_and_thread (struct program_space *pspace)
-{
- struct inferior *inf;
-
- inf = find_inferior_for_program_space (pspace);
- if (inf != NULL && inf->pid != 0)
- {
- struct thread_info *tp;
-
- tp = any_live_thread_of_process (inf->pid);
- if (tp != NULL)
- {
- switch_to_thread (tp->ptid);
- /* Switching thread switches pspace implicitly. We're
- done. */
- return;
- }
- }
-
- switch_to_thread (null_ptid);
- set_current_program_space (pspace);
-}
-
\f
/* See progspace.h. */
projects / deliverable / binutils-gdb.git / blobdiff