This commit is the result of running the gdb/copyright.py script,
which automated the update of the copyright year range for all
source files managed by the GDB project to be updated to include
year 2023.

This commit brings all the changes made by running gdb/copyright.py
as per GDB's Start of New Year Procedure.

For the avoidance of doubt, all changes in this commits were
performed by the script.

This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...

gdb/ChangeLog

        Update copyright year range in copyright header of all GDB files.

I was inspired by this patch of Simon's:

https://sourceware.org/pipermail/gdb-patches/2020-November/173522.html

... to remove other typedefs that are no longer necessary now that gdb
uses C++.

I didn't remove absolutely every one -- I didn't touch the tdep files.
However, I removed many of them.  In some cases, I removed an existing
different struct tag.

2020-12-04  Tom Tromey  <tromey@adacore.com>

	* linespec.c (struct linespec_token): Rename; remove typedef.
	* guile/scm-block.c (struct block_smob): Remove typedef.
	(struct block_syms_progress_smob): Likewise.
	* guile/scm-symbol.c (struct symbol_smob): Remove typedef.
	* guile/scm-symtab.c (symtab_smob): Remove typedef.
	(struct sal_smob): Remove typedef.
	* guile/scm-param.c (struct param_smob): Remove typedef.
	* guile/scm-progspace.c (struct pspace_smob): Rename.
	* guile/scm-objfile.c (struct objfile_smob): Rename.
	* guile/scm-iterator.c (struct iterator_smob): Rename.
	* guile/scm-frame.c (struct frame_smob): Rename.
	* guile/scm-arch.c (struct arch_smob): Rename.
	* guile/scm-type.c (struct field_smob): Remove typedef.
	(struct type_smob): Rename.
	* guile/scm-cmd.c (struct command_smob): Remove typedef.
	* guile/scm-ports.c (struct ioscm_memory_port): Remove typedef.
	* guile/scm-value.c (struct value_smob): Remove typedef.
	* guile/scm-lazy-string.c (lazy_string_smob): Remove typedef.
	* guile/guile-internal.h (struct scheme_variable)
	(struct scheme_function, struct scheme_integer_constant)
	(struct gdb_smob, struct chained_gdb_smob)
	(struct eqable_gdb_smob, arch_smob, frame_smob, iterator_smob)
	(objfile_smob, pspace_smob, type_smob): Remove typedef.
	* guile/scm-pretty-print.c (pretty_printer_smob): Remove typedef.
	(struct pretty_printer_worker_smob): Remove typedef.
	* guile/scm-exception.c (struct exception_smob): Remove typedef.
	* python/py-block.c (struct block_object): Remove typedef.
	(block_syms_iterator_object): Update.
	(set_block): Update.
	(block_syms_iterator_object): Remove typedef.
	* python/py-inferior.c (struct membuf_object): Remove typedef.
	* python/py-symtab.c (struct symtab_object): Remove typedef.
	(set_symtab): Update.
	(sal_object): Remove typedef.
	(set_sal): Update.
	* python/py-frame.c (frame_object): Remove typedef.
	* python/py-record-btrace.c (struct btpy_list_object): Remove
	typedef.
	* python/py-arch.c (struct arch_object): Remove typedef.
	* python/py-linetable.c (struct linetable_entry_object)
	(linetable_object, struct ltpy_iterator_object): Remove typedef.
	* python/py-events.h (eventregistry_object): Remove typedef.
	(struct events_object): Remove typedef.
	* python/python-internal.h (gdbpy_breakpoint_object): Remove
	typedef.
	(thread_object): Remove typedef.
	* python/py-progspace.c (pspace_object): Remove typedef.
	* python/py-value.c (struct value_object): Remove typedef.
	* python/py-record.h (recpy_record_object): Remove typedef.
	(struct recpy_element_object): Remove typedef.
	* python/py-lazy-string.c (lazy_string_object): Remove typedef.
	* python/py-objfile.c (objfile_object): Remove typedef.
	* python/py-cmd.c (struct cmdpy_object): Remove typedef.
	* python/py-type.c (type_object): Remove typedef.
	(typy_iterator_object): Update.
	(set_type): Update.
	(field_object): Remove typedef.
	(typy_iterator_object): Remove typedef.
	* python/py-registers.c (register_descriptor_iterator_object):
	Remove typedef.
	(struct register_descriptor_object)
	(struct reggroup_iterator_object, struct reggroup_object): Remove
	typedef.
	* python/py-record.c (recpy_gap_object): Remove typedef.
	* python/py-symbol.c (symbol_object): Remove typedef.
	(set_symbol): Update.
	* python/py-event.h (event_object): Remove typedef.
	* python/py-param.c (parmpy_object): Remove typedef.
	* python/py-instruction.c (struct py_insn_obj): Remove typedef.
	* python/py-unwind.c (struct pending_frame_object): Remove typedef.
	(unwind_info_object, struct cached_frame_info): Likewise.

gdb/ChangeLog:

        Update copyright year range in all GDB files.

While working on my other scripts to deal with gdb headers, I noticed
that some files were missing include guards.  I wrote a script to add
the missing ones, but found that using the obvious names for the
guards ran into clashes -- for example, gdb/nat/linux-nat.h used
"LINUX_NAT_H", but this was also the script's choice for
gdb/linux-nat.h.

So, I changed the script to normalize all include guards in gdb.  This
patch is the result.

As usual the script is available here:

    https://github.com/tromey/gdb-refactoring-scripts

Tested by rebuilding; I also ran it through "Fedora-x86_64-m64" on the
buildbot.

gdb/ChangeLog
2019-02-07  Tom Tromey  <tom@tromey.com>

	* yy-remap.h: Add include guard.
	* xtensa-tdep.h: Add include guard.
	* xcoffread.h: Rename include guard.
	* varobj-iter.h: Add include guard.
	* tui/tui.h: Rename include guard.
	* tui/tui-winsource.h: Rename include guard.
	* tui/tui-wingeneral.h: Rename include guard.
	* tui/tui-windata.h: Rename include guard.
	* tui/tui-win.h: Rename include guard.
	* tui/tui-stack.h: Rename include guard.
	* tui/tui-source.h: Rename include guard.
	* tui/tui-regs.h: Rename include guard.
	* tui/tui-out.h: Rename include guard.
	* tui/tui-layout.h: Rename include guard.
	* tui/tui-io.h: Rename include guard.
	* tui/tui-hooks.h: Rename include guard.
	* tui/tui-file.h: Rename include guard.
	* tui/tui-disasm.h: Rename include guard.
	* tui/tui-data.h: Rename include guard.
	* tui/tui-command.h: Rename include guard.
	* tic6x-tdep.h: Add include guard.
	* target/waitstatus.h: Rename include guard.
	* target/wait.h: Rename include guard.
	* target/target.h: Rename include guard.
	* target/resume.h: Rename include guard.
	* target-float.h: Rename include guard.
	* stabsread.h: Add include guard.
	* rs6000-tdep.h: Add include guard.
	* riscv-fbsd-tdep.h: Add include guard.
	* regformats/regdef.h: Rename include guard.
	* record.h: Rename include guard.
	* python/python.h: Rename include guard.
	* python/python-internal.h: Rename include guard.
	* python/py-stopevent.h: Rename include guard.
	* python/py-ref.h: Rename include guard.
	* python/py-record.h: Rename include guard.
	* python/py-record-full.h: Rename include guard.
	* python/py-record-btrace.h: Rename include guard.
	* python/py-instruction.h: Rename include guard.
	* python/py-events.h: Rename include guard.
	* python/py-event.h: Rename include guard.
	* procfs.h: Add include guard.
	* proc-utils.h: Add include guard.
	* p-lang.h: Add include guard.
	* or1k-tdep.h: Rename include guard.
	* observable.h: Rename include guard.
	* nto-tdep.h: Rename include guard.
	* nat/x86-linux.h: Rename include guard.
	* nat/x86-linux-dregs.h: Rename include guard.
	* nat/x86-gcc-cpuid.h: Add include guard.
	* nat/x86-dregs.h: Rename include guard.
	* nat/x86-cpuid.h: Rename include guard.
	* nat/ppc-linux.h: Rename include guard.
	* nat/mips-linux-watch.h: Rename include guard.
	* nat/linux-waitpid.h: Rename include guard.
	* nat/linux-ptrace.h: Rename include guard.
	* nat/linux-procfs.h: Rename include guard.
	* nat/linux-osdata.h: Rename include guard.
	* nat/linux-nat.h: Rename include guard.
	* nat/linux-namespaces.h: Rename include guard.
	* nat/linux-btrace.h: Rename include guard.
	* nat/glibc_thread_db.h: Rename include guard.
	* nat/gdb_thread_db.h: Rename include guard.
	* nat/gdb_ptrace.h: Rename include guard.
	* nat/fork-inferior.h: Rename include guard.
	* nat/amd64-linux-siginfo.h: Rename include guard.
	* nat/aarch64-sve-linux-sigcontext.h: Rename include guard.
	* nat/aarch64-sve-linux-ptrace.h: Rename include guard.
	* nat/aarch64-linux.h: Rename include guard.
	* nat/aarch64-linux-hw-point.h: Rename include guard.
	* mn10300-tdep.h: Add include guard.
	* mips-linux-tdep.h: Add include guard.
	* mi/mi-parse.h: Rename include guard.
	* mi/mi-out.h: Rename include guard.
	* mi/mi-main.h: Rename include guard.
	* mi/mi-interp.h: Rename include guard.
	* mi/mi-getopt.h: Rename include guard.
	* mi/mi-console.h: Rename include guard.
	* mi/mi-common.h: Rename include guard.
	* mi/mi-cmds.h: Rename include guard.
	* mi/mi-cmd-break.h: Rename include guard.
	* m2-lang.h: Add include guard.
	* location.h: Rename include guard.
	* linux-record.h: Rename include guard.
	* linux-nat.h: Add include guard.
	* linux-fork.h: Add include guard.
	* i386-darwin-tdep.h: Rename include guard.
	* hppa-linux-offsets.h: Add include guard.
	* guile/guile.h: Rename include guard.
	* guile/guile-internal.h: Rename include guard.
	* gnu-nat.h: Rename include guard.
	* gdb-stabs.h: Rename include guard.
	* frv-tdep.h: Add include guard.
	* f-lang.h: Add include guard.
	* event-loop.h: Add include guard.
	* darwin-nat.h: Rename include guard.
	* cp-abi.h: Rename include guard.
	* config/sparc/nm-sol2.h: Rename include guard.
	* config/nm-nto.h: Rename include guard.
	* config/nm-linux.h: Add include guard.
	* config/i386/nm-i386gnu.h: Rename include guard.
	* config/djgpp/nl_types.h: Rename include guard.
	* config/djgpp/langinfo.h: Rename include guard.
	* compile/gcc-cp-plugin.h: Add include guard.
	* compile/gcc-c-plugin.h: Add include guard.
	* compile/compile.h: Rename include guard.
	* compile/compile-object-run.h: Rename include guard.
	* compile/compile-object-load.h: Rename include guard.
	* compile/compile-internal.h: Rename include guard.
	* compile/compile-cplus.h: Rename include guard.
	* compile/compile-c.h: Rename include guard.
	* common/xml-utils.h: Rename include guard.
	* common/x86-xstate.h: Rename include guard.
	* common/version.h: Rename include guard.
	* common/vec.h: Rename include guard.
	* common/tdesc.h: Rename include guard.
	* common/selftest.h: Rename include guard.
	* common/scoped_restore.h: Rename include guard.
	* common/scoped_mmap.h: Rename include guard.
	* common/scoped_fd.h: Rename include guard.
	* common/safe-iterator.h: Rename include guard.
	* common/run-time-clock.h: Rename include guard.
	* common/refcounted-object.h: Rename include guard.
	* common/queue.h: Rename include guard.
	* common/ptid.h: Rename include guard.
	* common/print-utils.h: Rename include guard.
	* common/preprocessor.h: Rename include guard.
	* common/pathstuff.h: Rename include guard.
	* common/observable.h: Rename include guard.
	* common/netstuff.h: Rename include guard.
	* common/job-control.h: Rename include guard.
	* common/host-defs.h: Rename include guard.
	* common/gdb_wait.h: Rename include guard.
	* common/gdb_vecs.h: Rename include guard.
	* common/gdb_unlinker.h: Rename include guard.
	* common/gdb_unique_ptr.h: Rename include guard.
	* common/gdb_tilde_expand.h: Rename include guard.
	* common/gdb_sys_time.h: Rename include guard.
	* common/gdb_string_view.h: Rename include guard.
	* common/gdb_splay_tree.h: Rename include guard.
	* common/gdb_setjmp.h: Rename include guard.
	* common/gdb_ref_ptr.h: Rename include guard.
	* common/gdb_optional.h: Rename include guard.
	* common/gdb_locale.h: Rename include guard.
	* common/gdb_assert.h: Rename include guard.
	* common/filtered-iterator.h: Rename include guard.
	* common/filestuff.h: Rename include guard.
	* common/fileio.h: Rename include guard.
	* common/environ.h: Rename include guard.
	* common/common-utils.h: Rename include guard.
	* common/common-types.h: Rename include guard.
	* common/common-regcache.h: Rename include guard.
	* common/common-inferior.h: Rename include guard.
	* common/common-gdbthread.h: Rename include guard.
	* common/common-exceptions.h: Rename include guard.
	* common/common-defs.h: Rename include guard.
	* common/common-debug.h: Rename include guard.
	* common/cleanups.h: Rename include guard.
	* common/buffer.h: Rename include guard.
	* common/btrace-common.h: Rename include guard.
	* common/break-common.h: Rename include guard.
	* cli/cli-utils.h: Rename include guard.
	* cli/cli-style.h: Rename include guard.
	* cli/cli-setshow.h: Rename include guard.
	* cli/cli-script.h: Rename include guard.
	* cli/cli-interp.h: Rename include guard.
	* cli/cli-decode.h: Rename include guard.
	* cli/cli-cmds.h: Rename include guard.
	* charset-list.h: Add include guard.
	* buildsym-legacy.h: Rename include guard.
	* bfin-tdep.h: Add include guard.
	* ax.h: Rename include guard.
	* arm-linux-tdep.h: Add include guard.
	* arm-fbsd-tdep.h: Add include guard.
	* arch/xtensa.h: Rename include guard.
	* arch/tic6x.h: Add include guard.
	* arch/i386.h: Add include guard.
	* arch/arm.h: Rename include guard.
	* arch/arm-linux.h: Rename include guard.
	* arch/arm-get-next-pcs.h: Rename include guard.
	* arch/amd64.h: Add include guard.
	* arch/aarch64-insn.h: Rename include guard.
	* arch-utils.h: Rename include guard.
	* annotate.h: Add include guard.
	* amd64-darwin-tdep.h: Rename include guard.
	* aarch64-linux-tdep.h: Add include guard.
	* aarch64-fbsd-tdep.h: Add include guard.
	* aarch32-linux-nat.h: Add include guard.

gdb/gdbserver/ChangeLog
2019-02-07  Tom Tromey  <tom@tromey.com>

	* x86-tdesc.h: Rename include guard.
	* x86-low.h: Add include guard.
	* wincecompat.h: Rename include guard.
	* win32-low.h: Add include guard.
	* utils.h: Rename include guard.
	* tracepoint.h: Rename include guard.
	* tdesc.h: Rename include guard.
	* target.h: Rename include guard.
	* server.h: Rename include guard.
	* remote-utils.h: Rename include guard.
	* regcache.h: Rename include guard.
	* nto-low.h: Rename include guard.
	* notif.h: Add include guard.
	* mem-break.h: Rename include guard.
	* lynx-low.h: Add include guard.
	* linux-x86-tdesc.h: Add include guard.
	* linux-s390-tdesc.h: Add include guard.
	* linux-ppc-tdesc-init.h: Add include guard.
	* linux-low.h: Add include guard.
	* linux-aarch64-tdesc.h: Add include guard.
	* linux-aarch32-low.h: Add include guard.
	* inferiors.h: Rename include guard.
	* i387-fp.h: Rename include guard.
	* hostio.h: Rename include guard.
	* gdbthread.h: Rename include guard.
	* gdb_proc_service.h: Rename include guard.
	* event-loop.h: Rename include guard.
	* dll.h: Rename include guard.
	* debug.h: Rename include guard.
	* ax.h: Rename include guard.

This commit applies all changes made after running the gdb/copyright.py
script.

Note that one file was flagged by the script, due to an invalid
copyright header
(gdb/unittests/basic_string_view/element_access/char/empty.cc).
As the file was copied from GCC's libstdc++-v3 testsuite, this commit
leaves this file untouched for the time being; a patch to fix the header
was sent to gcc-patches first.

gdb/ChangeLog:

	Update copyright year range in all GDB files.

This is more preparation bits for multi-target support.

In a multi-target scenario, we need to address the case of different
processes/threads running on different targets that happen to have the
same PID/PTID.  E.g., we can have both process 123 in target 1, and
process 123 in target 2, while they're in reality different processes
running on different machines.  Or maybe we've loaded multiple
instances of the same core file.  Etc.

To address this, in my WIP multi-target branch, threads and processes
are uniquely identified by the (process_stratum target_ops *, ptid_t)
and (process_stratum target_ops *, pid) tuples respectively.  I.e.,
each process_stratum instance has its own thread/process number space.

As you can imagine, that requires passing around target_ops * pointers
in a number of functions where we're currently passing only a ptid_t
or an int.  E.g., when we look up a thread_info object by ptid_t in
find_thread_ptid, the ptid_t alone isn't sufficient.

In many cases though, we already have the thread_info or inferior
pointer handy, but we "lose" it somewhere along the call stack, only
to look it up again by ptid_t/pid.  Since thread_info or inferior
objects know their parent target, if we pass around thread_info or
inferior pointers when possible, we avoid having to add extra
target_ops parameters to many functions, and also, we eliminate a
number of by ptid_t/int lookups.

So that's what this patch does.  In a bit more detail:

- Changes a number of functions and methods to take a thread_info or
  inferior pointer instead of a ptid_t or int parameter.

- Changes a number of structure fields from ptid_t/int to inferior or
  thread_info pointers.

- Uses the inferior_thread() function whenever possible instead of
  inferior_ptid.

- Uses thread_info pointers directly when possible instead of the
  is_running/is_stopped etc. routines that require a lookup.

- A number of functions are eliminated along the way, such as:

  int valid_gdb_inferior_id (int num);
  int pid_to_gdb_inferior_id (int pid);
  int gdb_inferior_id_to_pid (int num);
  int in_inferior_list (int pid);

- A few structures and places hold a thread_info pointer across
  inferior execution, so now they take a strong reference to the
  (refcounted) thread_info object to avoid the thread_info pointer
  getting stale.  This is done in enable_thread_stack_temporaries and
  in the infcall.c code.

- Related, there's a spot in infcall.c where using a RAII object to
  handle the refcount would be handy, so a gdb::ref_ptr specialization
  for thread_info is added (thread_info_ref, in gdbthread.h), along
  with a gdb_ref_ptr policy that works for all refcounted_object types
  (in common/refcounted-object.h).

gdb/ChangeLog:
2018-06-21  Pedro Alves  <palves@redhat.com>

	* ada-lang.h (ada_get_task_number): Take a thread_info pointer
	instead of a ptid_t.  All callers adjusted.
	* ada-tasks.c (ada_get_task_number): Likewise.  All callers
	adjusted.
	(print_ada_task_info, display_current_task_id, task_command_1):
	Adjust.
	* breakpoint.c (watchpoint_in_thread_scope): Adjust to use
	inferior_thread.
	(breakpoint_kind): Adjust.
	(remove_breakpoints_pid): Rename to ...
	(remove_breakpoints_inf): ... this.  Adjust to take an inferior
	pointer.  All callers adjusted.
	(bpstat_clear_actions): Use inferior_thread.
	(get_bpstat_thread): New.
	(bpstat_do_actions): Use it.
	(bpstat_check_breakpoint_conditions, bpstat_stop_status): Adjust
	to take a thread_info pointer.  All callers adjusted.
	(set_longjmp_breakpoint_for_call_dummy, set_momentary_breakpoint)
	(breakpoint_re_set_thread): Use inferior_thread.
	* breakpoint.h (struct inferior): Forward declare.
	(bpstat_stop_status): Update.
	(remove_breakpoints_pid): Delete.
	(remove_breakpoints_inf): New.
	* bsd-uthread.c (bsd_uthread_target::wait)
	(bsd_uthread_target::update_thread_list): Use find_thread_ptid.
	* btrace.c (btrace_add_pc, btrace_enable, btrace_fetch)
	(maint_btrace_packet_history_cmd)
	(maint_btrace_clear_packet_history_cmd): Adjust.
	(maint_btrace_clear_cmd, maint_info_btrace_cmd): Adjust to use
	inferior_thread.
	* cli/cli-interp.c: Include "inferior.h".
	* common/refcounted-object.h (struct
	refcounted_object_ref_policy): New.
	* compile/compile-object-load.c: Include gdbthread.h.
	(store_regs): Use inferior_thread.
	* corelow.c (core_target::close): Use current_inferior.
	(core_target_open): Adjust to use first_thread_of_inferior and use
	the current inferior.
	* ctf.c (ctf_target::close): Adjust to use current_inferior.
	* dummy-frame.c (dummy_frame_id) <ptid>: Delete, replaced by ...
	<thread>: ... this new field.  All references adjusted.
	(dummy_frame_pop, dummy_frame_discard, register_dummy_frame_dtor):
	Take a thread_info pointer instead of a ptid_t.
	* dummy-frame.h (dummy_frame_push, dummy_frame_pop)
	(dummy_frame_discard, register_dummy_frame_dtor): Take a
	thread_info pointer instead of a ptid_t.
	* elfread.c: Include "inferior.h".
	(elf_gnu_ifunc_resolver_stop, elf_gnu_ifunc_resolver_return_stop):
	Use inferior_thread.
	* eval.c (evaluate_subexp): Likewise.
	* frame.c (frame_pop, has_stack_frames, find_frame_sal): Use
	inferior_thread.
	* gdb_proc_service.h (struct thread_info): Forward declare.
	(struct ps_prochandle) <ptid>: Delete, replaced by ...
	<thread>: ... this new field.  All references adjusted.
	* gdbarch.h, gdbarch.c: Regenerate.
	* gdbarch.sh (get_syscall_number): Replace 'ptid' parameter with a
	'thread' parameter.  All implementations and callers adjusted.
	* gdbthread.h (thread_info) <set_running>: New method.
	(delete_thread, delete_thread_silent): Take a thread_info pointer
	instead of a ptid.
	(global_thread_id_to_ptid, ptid_to_global_thread_id): Delete.
	(first_thread_of_process): Delete, replaced by ...
	(first_thread_of_inferior): ... this new function.  All callers
	adjusted.
	(any_live_thread_of_process): Delete, replaced by ...
	(any_live_thread_of_inferior): ... this new function.  All callers
	adjusted.
	(switch_to_thread, switch_to_no_thread): Declare.
	(is_executing): Delete.
	(enable_thread_stack_temporaries): Update comment.
	<enable_thread_stack_temporaries>: Take a thread_info pointer
	instead of a ptid_t.  Incref the thread.
	<~enable_thread_stack_temporaries>: Decref the thread.
	<m_ptid>: Delete
	<m_thr>: New.
	(thread_stack_temporaries_enabled_p, push_thread_stack_temporary)
	(get_last_thread_stack_temporary)
	(value_in_thread_stack_temporaries, can_access_registers_thread):
	Take a thread_info pointer instead of a ptid_t.  All callers
	adjusted.
	* infcall.c (get_call_return_value): Use inferior_thread.
	(run_inferior_call): Work with thread pointers instead of ptid_t.
	(call_function_by_hand_dummy): Work with thread pointers instead
	of ptid_t.  Use thread_info_ref.
	* infcmd.c (proceed_thread_callback): Access thread's state
	directly.
	(ensure_valid_thread, ensure_not_running): Use inferior_thread,
	access thread's state directly.
	(continue_command): Use inferior_thread.
	(info_program_command): Use find_thread_ptid and access thread
	state directly.
	(proceed_after_attach_callback): Use thread state directly.
	(notice_new_inferior): Take a thread_info pointer instead of a
	ptid_t.  All callers adjusted.
	(exit_inferior): Take an inferior pointer instead of a pid.  All
	callers adjusted.
	(exit_inferior_silent): New.
	(detach_inferior): Delete.
	(valid_gdb_inferior_id, pid_to_gdb_inferior_id)
	(gdb_inferior_id_to_pid, in_inferior_list): Delete.
	(detach_inferior_command, kill_inferior_command): Use
	find_inferior_id instead of valid_gdb_inferior_id and
	gdb_inferior_id_to_pid.
	(inferior_command): Use inferior and thread pointers.
	* inferior.h (struct thread_info): Forward declare.
	(notice_new_inferior): Take a thread_info pointer instead of a
	ptid_t.  All callers adjusted.
	(detach_inferior): Delete declaration.
	(exit_inferior, exit_inferior_silent): Take an inferior pointer
	instead of a pid.  All callers adjusted.
	(gdb_inferior_id_to_pid, pid_to_gdb_inferior_id, in_inferior_list)
	(valid_gdb_inferior_id): Delete.
	* infrun.c (follow_fork_inferior, proceed_after_vfork_done)
	(handle_vfork_child_exec_or_exit, follow_exec): Adjust.
	(struct displaced_step_inferior_state) <pid>: Delete, replaced by
	...
	<inf>: ... this new field.
	<step_ptid>: Delete, replaced by ...
	<step_thread>: ... this new field.
	(get_displaced_stepping_state): Take an inferior pointer instead
	of a pid.  All callers adjusted.
	(displaced_step_in_progress_any_inferior): Adjust.
	(displaced_step_in_progress_thread): Take a thread pointer instead
	of a ptid_t.  All callers adjusted.
	(displaced_step_in_progress, add_displaced_stepping_state): Take
	an inferior pointer instead of a pid.  All callers adjusted.
	(get_displaced_step_closure_by_addr): Adjust.
	(remove_displaced_stepping_state): Take an inferior pointer
	instead of a pid.  All callers adjusted.
	(displaced_step_prepare_throw, displaced_step_prepare)
	(displaced_step_fixup): Take a thread pointer instead of a ptid_t.
	All callers adjusted.
	(start_step_over): Adjust.
	(infrun_thread_ptid_changed): Remove bit updating ptids in the
	displaced step queue.
	(do_target_resume): Adjust.
	(fetch_inferior_event): Use inferior_thread.
	(context_switch, get_inferior_stop_soon): Take an
	execution_control_state pointer instead of a ptid_t.  All callers
	adjusted.
	(switch_to_thread_cleanup): Delete.
	(stop_all_threads): Use scoped_restore_current_thread.
	* inline-frame.c: Include "gdbthread.h".
	(inline_state) <inline_state>: Take a thread pointer instead of a
	ptid_t.  All callers adjusted.
	<ptid>: Delete, replaced by ...
	<thread>: ... this new field.
	(find_inline_frame_state): Take a thread pointer instead of a
	ptid_t.  All callers adjusted.
	(skip_inline_frames, step_into_inline_frame)
	(inline_skipped_frames, inline_skipped_symbol): Take a thread
	pointer instead of a ptid_t.  All callers adjusted.
	* inline-frame.h (skip_inline_frames, step_into_inline_frame)
	(inline_skipped_frames, inline_skipped_symbol): Likewise.
	* linux-fork.c (delete_checkpoint_command): Adjust to use thread
	pointers directly.
	* linux-nat.c (get_detach_signal): Likewise.
	* linux-thread-db.c (thread_from_lwp): New 'stopped' parameter.
	(thread_db_notice_clone): Adjust.
	(thread_db_find_new_threads_silently)
	(thread_db_find_new_threads_2, thread_db_find_new_threads_1): Take
	a thread pointer instead of a ptid_t.  All callers adjusted.
	* mi/mi-cmd-var.c: Include "inferior.h".
	(mi_cmd_var_update_iter): Update to use thread pointers.
	* mi/mi-interp.c (mi_new_thread): Update to use the thread's
	inferior directly.
	(mi_output_running_pid, mi_inferior_count): Delete, bits factored
	out to ...
	(mi_output_running): ... this new function.
	(mi_on_resume_1): Adjust to use it.
	(mi_user_selected_context_changed): Adjust to use inferior_thread.
	* mi/mi-main.c (proceed_thread): Adjust to use thread pointers
	directly.
	(interrupt_thread_callback): : Adjust to use thread and inferior
	pointers.
	* proc-service.c: Include "gdbthread.h".
	(ps_pglobal_lookup): Adjust to use the thread's inferior directly.
	* progspace-and-thread.c: Include "inferior.h".
	* progspace.c: Include "inferior.h".
	* python/py-exitedevent.c (create_exited_event_object): Adjust to
	hold a reference to an inferior_object.
	* python/py-finishbreakpoint.c (bpfinishpy_init): Adjust to use
	inferior_thread.
	* python/py-inferior.c (struct inferior_object): Give the type a
	tag name instead of a typedef.
	(python_on_normal_stop): No need to check if the current thread is
	listed.
	(inferior_to_inferior_object): Change return type to
	inferior_object.  All callers adjusted.
	(find_thread_object): Delete, bits factored out to ...
	(thread_to_thread_object): ... this new function.
	* python/py-infthread.c (create_thread_object): Use
	inferior_to_inferior_object.
	(thpy_is_stopped): Use thread pointer directly.
	(gdbpy_selected_thread): Use inferior_thread.
	* python/py-record-btrace.c (btpy_list_object) <ptid>: Delete
	field, replaced with ...
	<thread>: ... this new field.  All users adjusted.
	(btpy_insn_or_gap_new): Drop const.
	(btpy_list_new): Take a thread pointer instead of a ptid_t.  All
	callers adjusted.
	* python/py-record.c: Include "gdbthread.h".
	(recpy_insn_new, recpy_func_new): Take a thread pointer instead of
	a ptid_t.  All callers adjusted.
	(gdbpy_current_recording): Use inferior_thread.
	* python/py-record.h (recpy_record_object) <ptid>: Delete
	field, replaced with ...
	<thread>: ... this new field.  All users adjusted.
	(recpy_element_object) <ptid>: Delete
	field, replaced with ...
	<thread>: ... this new field.  All users adjusted.
	(recpy_insn_new, recpy_func_new): Take a thread pointer instead of
	a ptid_t.  All callers adjusted.
	* python/py-threadevent.c: Include "gdbthread.h".
	(get_event_thread): Use thread_to_thread_object.
	* python/python-internal.h (struct inferior_object): Forward
	declare.
	(find_thread_object, find_inferior_object): Delete declarations.
	(thread_to_thread_object, inferior_to_inferior_object): New
	declarations.
	* record-btrace.c: Include "inferior.h".
	(require_btrace_thread): Use inferior_thread.
	(record_btrace_frame_sniffer)
	(record_btrace_tailcall_frame_sniffer): Use inferior_thread.
	(get_thread_current_frame): Use scoped_restore_current_thread and
	switch_to_thread.
	(get_thread_current_frame): Use thread pointer directly.
	(record_btrace_replay_at_breakpoint): Use thread's inferior
	pointer directly.
	* record-full.c: Include "inferior.h".
	* regcache.c: Include "gdbthread.h".
	(get_thread_arch_regcache): Use the inferior's address space
	directly.
	(get_thread_regcache, registers_changed_thread): New.
	* regcache.h (get_thread_regcache(thread_info *thread)): New
	overload.
	(registers_changed_thread): New.
	(remote_target) <remote_detach_1>: Swap order of parameters.
	(remote_add_thread): <remote_add_thread>: Return the new thread.
	(get_remote_thread_info(ptid_t)): New overload.
	(remote_target::remote_notice_new_inferior): Use thread pointers
	directly.
	(remote_target::process_initial_stop_replies): Use
	thread_info::set_running.
	(remote_target::remote_detach_1, remote_target::detach)
	(extended_remote_target::detach): Adjust.
	* stack.c (frame_show_address): Use inferior_thread.
	* target-debug.h (target_debug_print_thread_info_pp): New.
	* target-delegates.c: Regenerate.
	* target.c (default_thread_address_space): Delete.
	(memory_xfer_partial_1): Use current_inferior.
	(target_detach): Use current_inferior.
	(target_thread_address_space): Delete.
	(generic_mourn_inferior): Use current_inferior.
	* target.h (struct target_ops) <thread_address_space>: Delete.
	(target_thread_address_space): Delete.
	* thread.c (init_thread_list): Use ALL_THREADS_SAFE.  Use thread
	pointers directly.
	(delete_thread_1, delete_thread, delete_thread_silent): Take a
	thread pointer instead of a ptid_t.  Adjust all callers.
	(ptid_to_global_thread_id, global_thread_id_to_ptid): Delete.
	(first_thread_of_process): Delete, replaced by ...
	(first_thread_of_inferior): ... this new function.  All callers
	adjusted.
	(any_thread_of_process): Rename to ...
	(any_thread_of_inferior): ... this, and take an inferior pointer.
	(any_live_thread_of_process): Rename to ...
	(any_live_thread_of_inferior): ... this, and take an inferior
	pointer.
	(thread_stack_temporaries_enabled_p, push_thread_stack_temporary)
	(value_in_thread_stack_temporaries)
	(get_last_thread_stack_temporary): Take a thread pointer instead
	of a ptid_t.  Adjust all callers.
	(thread_info::set_running): New.
	(validate_registers_access): Use inferior_thread.
	(can_access_registers_ptid): Rename to ...
	(can_access_registers_thread): ... this, and take a thread
	pointer.
	(print_thread_info_1): Adjust to compare thread pointers instead
	of ptids.
	(switch_to_no_thread, switch_to_thread): Make extern.
	(scoped_restore_current_thread::~scoped_restore_current_thread):
	Use m_thread pointer directly.
	(scoped_restore_current_thread::scoped_restore_current_thread):
	Use inferior_thread.
	(thread_command): Use thread pointer directly.
	(thread_num_make_value_helper): Use inferior_thread.
	* top.c (execute_command): Use inferior_thread.
	* tui/tui-interp.c: Include "inferior.h".
	* varobj.c (varobj_create): Use inferior_thread.
	(value_of_root_1): Use find_thread_global_id instead of
	global_thread_id_to_ptid.

gdb/ChangeLog:

        Update copyright year range in all GDB files

Remove gdb.BtraceFunctionCall and replace by gdb.FunctionSegment.  Additionally,
rename prev_segment and next_segment to prev and next.

Remove gdb.BtraceInstruction and replace by gdb.RecordInstruction.

As discussed here: https://sourceware.org/ml/gdb-patches/2017-04/msg00157.html

A gap is not an instruction and it should not pretend to be one.
gdb.Record.instruction_history is now a list of gdb.RecordInstruction and
gdb.RecordGap objects.  This allows the user to deal with Gaps in the record
in a more sane way.

The user would always get the instruction_history and function_call_history
objects of the current thread, not the thread for which the gdb.Record object
was created.

The attached testcase fails without this patch and passes with the patch.

This patch allows examination of the registers FS_BASE and GS_BASE
for Linux Systems running on 64bit. Tests for simple read and write
of the new registers is also added with this patch.

2017-01-27  Walfred Tedeschi  <walfred.tedeschi@intel.com>
	    Richard Henderson  <rth@redhat.com>

gdb/ChangeLog:

	* amd64-linux-nat.c (PTRACE_ARCH_PRCTL): New define.
	(amd64_linux_fetch_inferior_registers): Add case to fetch FS_BASE
	GS_BASE for older kernels.
	(amd64_linux_store_inferior_registers): Add case to store FS_BASE
	GS_BASE for older kernels.
	* amd64-linux-tdep.c (amd64_linux_gregset_reg_offset): Add FS_BASE
	and GS_BASE to the offset table.
	(amd64_linux_register_reggroup_p): Add FS_BASE and GS_BASE to the
	system register group.
	* amd64-nat.c (amd64_native_gregset_reg_offset): Implements case
	for older kernels.
	* amd64-tdep.c (amd64_init_abi): Add segment registers for the
	amd64 ABI.
	* amd64-tdep.h (amd64_regnum): Add AMD64_FSBASE_REGNUM and
	AMD64_GSBASE_REGNUM.
	(AMD64_NUM_REGS): Set to AMD64_GSBASE_REGNUM + 1.
	* features/Makefile (amd64-linux.dat, amd64-avx-linux.dat)
	(amd64-mpx-linux.dat, amd64-avx512-linux.dat, x32-linux.dat)
	(x32-avx-linux.dat, x32-avx512-linux.dat): Add
	i386/64bit-segments.xml in those rules.
	* features/i386/64bit-segments.xml: New file.
	* features/i386/amd64-avx-mpx-linux.xml: Add 64bit-segments.xml.
	* features/i386/amd64-avx-linux.xml: Add 64bit-segments.xml.
	* features/i386/amd64-avx512-linux.xml: Add 64bit-segments.xml.
	* features/i386/amd64-mpx-linux.xml: Add 64bit-segments.xml.
	* features/i386/x32-avx512-linux.xml: Add 64bit-segments.xml.
	* features/i386/x32-avx-linux.xml: Add 64bit-segments.xml.
	* features/i386/amd64-linux.xml: Add 64bit-segments.xml.
	* features/i386/amd64-avx-linux.c: Regenerated.
	* features/i386/amd64-avx-mpx-linux.c: Regenerated.
	* features/i386/amd64-avx-mpx.c: Regenerated.
	* features/i386/amd64-avx512-linux.c: Regenerated.
	* features/i386/amd64-linux.c: Regenerated.
	* features/i386/amd64-mpx-linux.c: Regenerated.
	* features/i386/i386-avx-mpx-linux.c: Regenerated.
	* features/i386/i386-avx-mpx.c: Regenerated.
	* features/i386/x32-avx-linux.c: Regenerated.
	* features/i386/x32-avx512-linux.c: Regenerated.
	* regformats/i386/amd64-avx-linux.dat: Regenerated.
	* regformats/i386/amd64-avx-mpx-linux.dat: Regenerated.
	* regformats/i386/amd64-avx512-linux.dat: Regenerated.
	* regformats/i386/amd64-linux.dat: Regenerated.
	* regformats/i386/amd64-mpx-linux.dat: Regenerated.
	* regformats/i386/x32-avx-linux.dat: Regenerated.
	* regformats/i386/x32-avx512-linux.dat: Regenerated.
	* regformats/i386/x32-linux.dat: Regenerated.

gdb/doc/ChangeLog:

	* gdb.texinfo (i386 Features): Add system segment registers
	as feature.

gdb/gdbserver/ChangeLog:

	* linux-x86-low.c (x86_64_regmap): Add fs_base and gs_base
	to the register table.
	(x86_fill_gregset): Add support for old kernels for the
	fs_base and gs_base system registers.
	(x86_store_gregset): Likewise.
	* configure.srv (srv_i386_64bit_xmlfiles): Add 64bit-segments.xml.

gdb/testsuite/ChangeLog:

	* gdb.arch/amd64-gs_base.c: New file.
	* gdb.arch/amd64-gs_base.exp: New file.

Change-Id: I2e0eeb93058a2320d4d3b045082643cfe4aff963
Signed-off-by: Walfred Tedeschi <walfred.tedeschi@intel.com>

This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.

gdb/ChangeLog:

        Update copyright year range in all GDB files.

gdb/ChangeLog:

        Update year range in copyright notice of all files.

gdb/ChangeLog:

        Update year range in copyright notice of all files.

	* NEWS: Mention it.
	* solib.c (solib_read_symbols): Only print symbol loading messages
	if requested.
	(solib_add): If symbol loading is in "brief" mode, notify user
	symbols are being loaded.
	(reload_shared_libraries_1): Ditto.
	* symfile.c (print_symbol_loading_off): New static global.
	(print_symbol_loading_brief): New static global.
	(print_symbol_loading_full): New static global.
	(print_symbol_loading_enums): New static global.
	(print_symbol_loading): New static global.
	(print_symbol_loading_p): New function.
	(symbol_file_add_with_addrs): Only print symbol loading messages
	if requested.
	(_initialize_symfile): Register "print symbol-loading" set/show
	command.
	* symfile.h (print_symbol_loading_p): Declare.

	doc/
	* gdb.texinfo (Symbols): Document set/show print symbol-loading.

	testsuite/
	* gdb.base/print-symbol-loading-lib.c: New file.
	* gdb.base/print-symbol-loading-main.c: New file.
	* gdb.base/print-symbol-loading.exp: New file.

Two modifications:
  1. The addition of 2013 to the copyright year range for every file;
  2. The use of a single year range, instead of potentially multiple
     year ranges, as approved by the FSF.

	PR 11804
	* defs.h (find_memory_region_ftype): New comment.  New arg modified.
	* fbsd-nat.c (fbsd_find_memory_regions): Add the passed modified value.
	* gcore.c (gcore_create_callback): New function comment.  Add modified
	parameter.  Only write modified regions.  Set SEC_READONLY exactly
	according to MODIFIED.
	(objfile_find_memory_regions): Ignore separate debug info files.  Ass
	the passed modified value to FUNC.
	* gnu-nat.c (gnu_find_memory_regions): Add the passed modified value.
	* linux-tdep.c (linux_find_memory_regions): Try to reads smaps file
	first.  New variables modified and has_anonymous.  Parse the lines of
	smaps file.  Add the passed MODIFIED value to FUNC.
	* procfs.c (find_memory_regions_callback): Add the passed modified
	value.

gdb/testsuite/
	PR 11804
	* gdb.base/gcore-relro.exp: New file.
	* gdb.base/gcore-relro-main.c: New file.
	* gdb.base/gcore-relro-lib.c: New file.

gdb/ChangeLog:

        Copyright year update in most files of the GDB Project.

Automatic update by copyright.sh.

        * gdb.ada/lang_switch.exp: New testcase.

        Switch the license of all .h files to GPLv3.
        Switch the license of all .cc files to GPLv3.

	* Makefile.in (symtab.o): Update.
	* symtab.h (matching_bfd_section): New prototype.
	* symtab.c (matching_bfd_section): New.
	(find_pc_sect_psymbol, find_pc_sect_symtab): Use it.
	* minsyms.c (lookup_minimal_symbol_by_pc_section): Likewise.
	* printcmd.c (sym_info): Ignore separate debug objfiles.
gdb/testsuite/
	* gdb.base/sepdebug.exp: Remove debug format test.
	* lib/gdb.exp (gdb_gnu_strip_debug): Perform debug format test.
	Handle no-symtab.
	* gdb.base/sepsymtab.c, gdb.base/sepsymtab.exp: New.

	PR c++/2116
	* valops.c (find_overload_match): Check for a NULL name.

2006-10-09  Daniel Jacobowitz  <dan@codesourcery.com>

	PR c++/2116
	* gdb.cp/call-c.cc, gdb.cp/call-c.exp, gdb.cp/call-c-1.c: New.

	* config/djgpp/fnchange.lst: Remove entries for gdb.gdbserver.
gdb/testsuite/
	* Makefile.in (ALL_SUBDIRS): Replace gdb.gdbserver with
	gdb.server.
	* configure.ac: Likewise.
	* configure: Regenerated.
	* gdb.gdbserver/Makefile.in: Moved to...
	* gdb.server/Makefile.in: ... here.
	* gdb.gdbserver/server.c: Moved to...
	* gdb.server/server.c: ... here.
	* gdb.gdbserver/server-run.exp: Moved to...
	* gdb.server/server-run.exp: ... here.

	* Makefile.in (ALL_SUBDIRS): Add gdb.gdbserver.
	* configure.ac: Create gdb.gdbserver/Makefile.
	* configure: Regenerated.
	* lib/gdbserver-support.exp: New file, derived from
	config/gdbserver.exp.
	* config/gdbserver.exp: Use gdbserver-support.exp.
	* gdb.gdbserver/Makefile.in: New file.
	* gdb.gdbserver/server.c: New file.
	* gdb.gdbserver/server-run.exp: New file.
gdb/
	* config/fnchange.lst: Add testsuite/gdb.gdbserver entries.

	* configure: Regenerated.
	* Makefile.in: Add gdb.dwarf2.
	* gdb.dwarf2/Makefile.in, gdb.dwarf2/dw2-basic.S,
	gdb.dwarf2/dw2-basic.exp, gdb.dwarf2/main.c,
	gdb.dwarf2/file1.txt: New files.

2004-08-12  Jeff Johnston  <jjohnstn@redhat.com>

        * gdb.base/unload.exp: New test for breakpoints in dynamically
        loaded libraries.
        * gdb.base/unload.c: Ditto.
        * gdb.base/unloadshr.c: Ditto.

gdb.stabs/exclfwd2.c, gdb.stabs/exclfwd.h: New test.

        * gdb.base/sep-proc.c: New file.
        * gdb.base/sep.exp: New testcase.

2004-02-04  Jeff Johnston  <jjohnstn@redhat.com>

        * gdb.base/pendshr.c (pendfunc): New function that calls
        pendfunc1.
        * gdb.base/pending.c: Call pendfunc instead of pendfunc1.

2004-02-02  Jeff Johnston  <jjohnstn@redhat.com>

        * lib/gdb.exp (gdb_breakpoint): Add pending breakpoint
        support.
        * gdb.base/langs.exp: Fix test which attempts to create
        breakpoint on non-existent function to handle new pending
        support.
        * gdb.base/shlib-call.exp: Use gdb_breakpoint to set
        a breakpoint.
        * gdb.base/pending.exp: New test.
        * gdb.base/pending.c: New file.
        * gdb.base/pendshr.c: Ditto.

	* gdb.cp/cttiadd.cc: Add copyright notice.
	* gdb.cp/cttiadd1.cc: Likewise.
	* gdb.cp/cttiadd2.cc: Likewise.
	* gdb.cp/cttiadd3.cc: Likewise.