/* 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.
#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;
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. */
/* 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
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,
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;
}
ss = *ss_link;
}
- release_program_space (pspace);
+ delete pspace;
}
/* Prints the list of program spaces and their details on UIOUT. If
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);
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");
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;
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 ();
}
\f
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 ());
}
projects / deliverable / binutils-gdb.git / blobdiff