After this patch, the psymtab address map will now be allocated on the
psymtab obstack rather than the objfile obstack.  This also changes
the psymtab storage object to make the obstack private; this will be
used later.

gdb/ChangeLog
2019-01-10  Tom Tromey  <tom@tromey.com>

	* psymtab.h (psymtab_storage::obstack): New method.
	<m_obstack>: Rename from obstack; now private.
	* psymtab.c (psymtab_storage): Update.
	* dwarf2read.c (create_addrmap_from_index)
	(create_addrmap_from_aranges, dwarf2_build_psymtabs_hard):
	Update.

This introduces a new method, objfile::reset_psymtabs, and changes
reread_symbols to use it.  This method simply destroys the existing
partial symbols and recreates the psymtab_storage object.

This patch fixes a latent bug -- namely, that reread_symbols should
clear objfile::psymbol_map, but does not.  I can submit that
separately if you'd prefer.

gdb/ChangeLog
2019-01-10  Tom Tromey  <tom@tromey.com>

	* symfile.c (reread_symbols): Call objfile->reset_psymtabs.
	* objfiles.h (objfile::reset_psymtabs): New method.

This introduces a new psymtab_storage class, which holds all
psymbol-related objects that are independent of the objfile.  (This
latter contraint explains why psymbol_map was not moved; though this
could still be done with some work.)

This patch does not yet change where psymtab allocation is done --
that comes later.  This just wraps everything in a single object to
make further transformations simpler.

Note that a shared_ptr is used to link from the objfile to the
psymtab_storage object.  The end goal here is to allow a given symbol
reader to simply attach to the psymtab_storage object to the BFD, then
reuse it in later invocations; shared_ptr makes this simple to reason
about.

gdb/ChangeLog
2019-01-10  Tom Tromey  <tom@tromey.com>

	* symmisc.c (print_symbol_bcache_statistics): Update.
	(print_objfile_statistics): Update.
	* symfile.c (reread_symbols): Update.
	* psymtab.h (class psymtab_storage): New.
	* psymtab.c (psymtab_storage): New constructor.
	(~psymtab_storage): New destructor.
	(require_partial_symbols): Update.
	(ALL_OBJFILE_PSYMTABS_REQUIRED): Rewrite.
	(find_pc_sect_psymtab, find_pc_sect_psymbol)
	(match_partial_symbol, lookup_partial_symbol, dump_psymtab)
	(psym_dump, recursively_search_psymtabs, psym_has_symbols)
	(psym_find_compunit_symtab_by_address, sort_pst_symbols)
	(start_psymtab_common, end_psymtab_common)
	(add_psymbol_to_bcache, add_psymbol_to_list, init_psymbol_list)
	(allocate_psymtab): Update.
	(psymtab_storage::discard_psymtab): Rename from discard_psymtab.
	Update.
	(dump_psymtab_addrmap, maintenance_print_psymbols)
	(maintenance_check_psymtabs): Update.
	(class objfile_psymtabs): Move to objfiles.h.
	* psympriv.h (discard_psymtab): Now inline.
	(psymtab_discarder::psymtab_discarder): Update.
	(psymtab_discarder::~psymtab_discarder): Update.
	(ALL_OBJFILE_PSYMTABS): Rewrite.
	* objfiles.h (struct objfile) <psymtabs, psymtabs_addrmap,
	free_psymtabs, psymbol_cache, global_psymbols, static_psymbols>:
	Remove fields.
	<partial_symtabs>: New field.
	(class objfile_psymtabs): Move from psymtab.h.  Update.
	* objfiles.c (objfile::objfile): Initialize partial_symtabs, not
	psymbol_cache.
	(objfile::~objfile): Don't destroy psymbol_cache.
	* mdebugread.c (parse_partial_symbols): Update.
	* dwarf2read.c (create_addrmap_from_index)
	(create_addrmap_from_aranges, dw2_find_pc_sect_compunit_symtab)
	(process_psymtab_comp_unit_reader, dwarf2_build_psymtabs_hard)
	(add_partial_subprogram, dwarf2_ranges_read): Update.
	* dwarf-index-write.c (write_address_map)
	(write_one_signatured_type, recursively_write_psymbols)
	(class debug_names, class debug_names, write_psymtabs_to_index):
	Update.

This changes symbol_set_names to take an objfile_per_bfd_storage
argument, and updates the users.  It also changes PSYMBOL_SET_NAMES to
take this argument directly; I feel this clarifies the storage
location of objects created in psymtab.c.

gdb/ChangeLog
2019-01-10  Tom Tromey  <tom@tromey.com>

	* symtab.h (SYMBOL_SET_NAMES): Update.
	(symbol_set_names): Update.
	(MSYMBOL_SET_NAMES): Update.
	* symtab.c (symbol_set_names): Change argument to be an
	objfile_per_bfd_storage.
	* psymtab.c (add_psymbol_to_bcache): Update.
	* psympriv.h (PSYMBOL_SET_NAMES): Take per_bfd argument.

This changes create_demangled_names_hash to take an
objfile_per_bfd_storage parameter.  This makes it clearer where it is
storing the objects it allocates.

gdb/ChangeLog
2019-01-10  Tom Tromey  <tom@tromey.com>

	* symtab.c (create_demangled_names_hash): Change argument to be an
	objfile_per_bfd_storage.
	(symbol_set_names): Update.

Existing callers to init_psymbol_list were checking to see if psymbols
had already been initialized.  It seemed better to me to do this check
directly in init_psymbol_list, simplifying the callers.

gdb/ChangeLog
2019-01-10  Tom Tromey  <tom@tromey.com>

	* xcoffread.c (xcoff_initial_scan): Unconditionally call
	init_psymbol_list.
	* psymtab.c (init_psymbol_list): Do nothing if already called.
	* psympriv.h (init_psymbol_list): Add comment.
	* dwarf2read.c (dwarf2_build_psymtabs): Unconditionally call
	init_psymbol_list.
	* dbxread.c (dbx_symfile_read): Unconditionally call
	init_psymbol_list.

This changes add_psymbol_to_list to use an enum, rather than a pointer
to a vector, to decide where to put the new symbol.  This reduces the
number of direct references to the static_psymbols and global_psymbols
members of the objfile, which is handy in a later patch.

gdb/ChangeLog
2019-01-10  Tom Tromey  <tom@tromey.com>

	* xcoffread.c (scan_xcoff_symtab): Update.
	* psymtab.c (add_psymbol_to_list): Replace "list" parameter with
	"where".
	* mdebugread.c (parse_partial_symbols)
	(handle_psymbol_enumerators): Update.
	* dwarf2read.c (add_partial_symbol, load_partial_dies): Update.
	* dbxread.c (read_dbx_symtab): Update.
	* psympriv.h (psymbol_placement): New enum.
	(add_psymbol_to_list): Update.

start_psymtab_common takes references to the global_psymbols and
static_psymbols vectors, but it also has an objfile parameter.  This
is redundant, so this patch simplifies the function by removing those
reference parameters.

gdb/ChangeLog
2019-01-10  Tom Tromey  <tom@tromey.com>

	* xcoffread.c (xcoff_start_psymtab): Remove global_psymbols and
	static_psymbols parameters.
	(scan_xcoff_symtab): Update.
	* psymtab.c (start_psymtab_common): Remove global_psymbols and
	static_psymbols parameters.
	* psympriv.h (start_psymtab_common): Update.
	* mdebugread.c (parse_partial_symbols): Update.
	* dwarf2read.c (create_partial_symtab): Update.
	* dbxread.c (read_dbx_symtab): Update.
	(start_psymtab): Remove global_psymbols and static_psymbols
	parameters.

allocate_psymtab has long cleared the new psymtab that is returned.
This patch documents this behavior and then removes some redundant
initializations.

gdb/ChangeLog
2019-01-10  Tom Tromey  <tom@tromey.com>

	* xcoffread.c (xcoff_end_psymtab): Remove some initializations.
	* psymtab.c (allocate_psymtab): Add comment.
	* psympriv.h (allocate_psymtab): Add comment.
	* dwarf2read.c (dwarf2_create_include_psymtab): Remove some
	initializations.
	* dbxread.c (dbx_end_psymtab): Remove some initializations.

This moves a couple of mdebugread-related declarations from symfile.h
to mdebugread.h, which seemed more appropriate.

gdb/ChangeLog
2019-01-10  Tom Tromey  <tom@tromey.com>

	* symfile.h (mdebug_build_psymtabs, elfmdebug_build_psymtabs):
	Don't declare.
	* mipsread.c: Include mdebugread.h.
	* mdebugread.h (mdebug_build_psymtabs, elfmdebug_build_psymtabs):
	Declare.
	* elfread.c: Include mdebugread.h.

.	* libiberty: Sync with gcc.  Bring in:
	2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

	PR other/16615

	* cp-demangle.c: Mechanically replace "can not" with "cannot".
	* floatformat.c: Likewise.
	* strerror.c: Likewise.

	2018-12-22  Jason Merrill  <jason@redhat.com>

	Remove support for demangling GCC 2.x era mangling schemes.
	* cplus-dem.c: Remove cplus_mangle_opname, cplus_demangle_opname,
	internal_cplus_demangle, and all subroutines.
	(libiberty_demanglers): Remove entries for ancient GNU (pre-3.0),
	Lucid, ARM, HP, and EDG demangling styles.
	(cplus_demangle): Remove 'work' variable.  Don't call
	internal_cplus_demangle.

include	* Merge from GCC:
	2018-12-22  Jason Merrill  <jason@redhat.com>

	* demangle.h: Remove support for ancient GNU (pre-3.0), Lucid,
	ARM, HP, and EDG demangling styles.

This removes the ALL_OBJFILE_PSYMTABS macro, replacing its uses with
ranged for loops.

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* dbxread.c (dbx_end_psymtab): Use objfile_psymtabs.
	* mdebugread.c (parse_partial_symbols): Use objfile_psymtabs.
	* psymtab.c (ALL_OBJFILE_PSYMTABS_REQUIRED): Remove.
	(psym_map_symtabs_matching_filename, find_pc_sect_psymtab)
	(psym_lookup_symbol, psym_find_last_source_symtab)
	(psym_forget_cached_source_info, psym_print_stats)
	(psym_expand_symtabs_for_function, psym_expand_all_symtabs)
	(psym_expand_symtabs_with_fullname, psym_map_symbol_filenames)
	(psym_map_matching_symbols, psym_expand_symtabs_matching)
	(psym_find_compunit_symtab_by_address)
	(maintenance_print_psymbols, maintenance_info_psymtabs)
	(maintenance_check_psymtabs): Use ranged for.
	* psymtab.h (class objfile_psymtabs): New.
	(require_partial_symbols): Return objfile_psymtabs.
	* psympriv.h (ALL_OBJFILE_PSYMTABS): Remove.

This removes the ALL_OBJSECTIONS macro, replacing its uses with ranged
for loops.

The special code in this macro for noticing a "break" from the inner
loop was only needed in a single place; so rather than try to
replicate this, I've simply replaced that use with a "goto".

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* symfile.c (overlay_invalidate_all, find_pc_overlay)
	(find_pc_mapped_section, list_overlays_command)
	(map_overlay_command, unmap_overlay_command)
	(simple_overlay_update): Use all_objfiles.
	* spu-tdep.c (spu_overlay_update): Use all_objfiles.
	* printcmd.c (info_symbol_command): Use all_objfiles.
	* objfiles.h (ALL_OBJSECTIONS): Remove.
	* maint.c (maintenance_translate_address): Use all_objfiles.
	* gcore.c (gcore_create_callback): Use all_objfiles.
	(objfile_find_memory_regions): Likewise.

This removes the ALL_OBJFILES and ALL_FILETABS macros, replacing them
with ranged for loops.

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* symtab.c (find_line_symtab, info_sources_command)
	(make_source_files_completion_list): Use objfile_compunits.
	* source.c (select_source_symtab): Use objfile_compunits.
	* objfiles.h (struct objfile): Update comment.
	(ALL_OBJFILES): Remove.
	(ALL_FILETABS): Remove.
	* mi/mi-cmd-file.c (mi_cmd_file_list_exec_source_files): Use
	objfile_compunits.

This removes ALL_OBJFILE_FILETABS, replacing its uses with ranged for
loops.

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* symmisc.c (print_objfile_statistics, dump_objfile)
	(maintenance_print_symbols): Use compunit_filetabs.
	* source.c (forget_cached_source_info_for_objfile): Use
	compunit_filetabs.
	* objfiles.h (ALL_OBJFILE_FILETABS): Remove.
	(ALL_FILETABS): Use compunit_filetabs.
	* objfiles.c (objfile_relocate1): Use compunit_filetabs.
	* coffread.c (coff_symtab_read): Use compunit_filetabs.

This removes ALL_COMPUNIT_FILETABS, replacing its uses with ranged for
loops.

Because this is still used in the ALL_OBJFILE_FILETABS macro, in some
places a declaration had to be removed or renamed to avoid shadowing.

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* symtab.h (ALL_COMPUNIT_FILETABS): Remove.
	(compunit_filetabs): New.
	* symtab.c (iterate_over_some_symtabs, find_pc_sect_line): Use
	compunit_filetabs.
	(info_sources_command, make_source_files_completion_list): Remove
	declaration.
	* symmisc.c (print_objfile_statistics, dump_objfile)
	(maintenance_print_symbols): Remove declaration.
	(maintenance_info_symtabs): Use compunit_filetabs.
	(maintenance_info_line_tables): Likewise.
	* source.c (select_source_symtab): Change local variable name.
	(forget_cached_source_info_for_objfile): Remove declaration.
	* objfiles.h (ALL_OBJFILE_FILETABS): Use compunit_filetabs.
	* objfiles.c (objfile_relocate1): Remove declaration.
	* mi/mi-cmd-file.c (mi_cmd_file_list_exec_source_files): Remove
	declaration.
	* maint.c (count_symtabs_and_blocks): Use compunit_filetabs.
	* coffread.c (coff_symtab_read): Remove declaration.
	* buildsym.c (buildsym_compunit::end_symtab_with_blockvector): Use
	compunit_filetabs.

This removes the ALL_COMPUNITS, replacing its uses with two nested
ranged for loops.

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* symtab.c (lookup_objfile_from_block)
	(find_pc_sect_compunit_symtab, search_symbols)
	(default_collect_symbol_completion_matches_break_on): Use
	objfile_compunits.
	* objfiles.h (ALL_COMPUNITS): Remove.
	* maint.c (count_symtabs_and_blocks): Use objfile_compunits.
	* cp-support.c (add_symbol_overload_list_qualified): Use
	objfile_compunits.
	* ada-lang.c (ada_collect_symbol_completion_matches)
	(ada_add_global_exceptions): Use objfile_compunits.

This removes ALL_OBJFILE_COMPUNITS, replacing its uses with ranged for
loops.  Because ALL_COMPUNITS is also updated, in some places a
declaration must be deleted to avoid shadowing.

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* source.c (select_source_symtab)
	(forget_cached_source_info_for_objfile): Remove declaration.
	* mi/mi-cmd-file.c (mi_cmd_file_list_exec_source_files): Remove
	declaration.
	* maint.c (count_symtabs_and_blocks): Remove declaration.
	* cp-support.c (add_symbol_overload_list_qualified): Remove
	declaration.
	* coffread.c (coff_symtab_read): Remove declaration.
	* symtab.c (lookup_symbol_in_objfile_symtabs)
	(basic_lookup_transparent_type_1): Use objfile_compunits.
	(lookup_objfile_from_block, find_pc_sect_compunit_symtab)
	(info_sources_command, search_symbols)
	(default_collect_symbol_completion_matches_break_on)
	(make_source_files_completion_list): Remove declaration.
	* ada-lang.c (add_nonlocal_symbols): Use objfile_compunits.
	(ada_collect_symbol_completion_matches)
	(ada_add_global_exceptions): Remove declaration.
	* linespec.c (iterate_over_all_matching_symtabs): Use
	objfile_compunits.
	* objfiles.h (ALL_OBJFILE_COMPUNITS): Remove.
	(class objfile_compunits): New.
	(ALL_COMPUNITS): Use objfile_compunits.
	* symmisc.c (print_objfile_statistics, maintenance_info_symtabs)
	(maintenance_check_symtabs, maintenance_info_line_tables): Use
	objfile_compunits.
	* objfiles.c (objfile_relocate1): Use objfile_compunits.

This removes the ALL_MSYMBOLS and ALL_OBJFILE_MSYMBOLS macros,
replacing their uses with ranged for loops.

In a couple of spots, a new declaration was needed in order to work
around shadowing; these are just temporary and are removed in a
subsequent patch.

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* symtab.c (search_symbols)
	(default_collect_symbol_completion_matches_break_on): Use
	objfile_msymbols.
	* ada-lang.c (ada_lookup_simple_minsym)
	(ada_collect_symbol_completion_matches): Use objfile_msymbols.
	* minsyms.c (find_solib_trampoline_target): Use objfile_msymbols.
	* hppa-tdep.c (hppa_lookup_stub_minimal_symbol): Use
	objfile_msymbols.
	* coffread.c (coff_symfile_read): Use objfile_msymbols.
	* symmisc.c (dump_msymbols): Use objfile_msymbols.
	* objc-lang.c (find_methods): Use objfile_msymbols.
	(info_selectors_command, info_classes_command): Likewise.
	* stabsread.c (scan_file_globals): Use objfile_msymbols.
	* objfiles.h (class objfile_msymbols): New.
	(ALL_OBJFILE_MSYMBOLS): Remove.
	(ALL_MSYMBOLS): Remove.

This removes the ALL_OBJFILES_SAFE macro, replacing the uses with
ranged for loops.

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* common/next-iterator.h (next_adapter): Add Iterator template
	parameter.
	* objfiles.h (ALL_OBJFILES_SAFE): Remove.
	(class all_objfiles_safe): New.
	* jit.c (jit_inferior_exit_hook): Use all_objfiles_safe.
	* objfiles.c (put_objfile_before): Update comment.
	(add_separate_debug_objfile): Likewise.
	(free_all_objfiles): Use all_objfiles_safe.
	(objfile_purge_solibs): Likewise.

This removes most uses of ALL_OBJFILES, replacing them with ranged for
loops.  The remaining uses are all in macros, and will be removed in
subsequent patches.

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* symtab.c (iterate_over_symtabs, matching_obj_sections)
	(expand_symtab_containing_pc, lookup_static_symbol)
	(basic_lookup_transparent_type, find_pc_sect_compunit_symtab)
	(find_symbol_at_address, find_line_symtab, find_main_name): Use
	all_objfiles.
	* probe.c (find_probe_by_pc, collect_probes): Use all_objfiles.
	* breakpoint.c (create_overlay_event_breakpoint)
	(create_longjmp_master_breakpoint)
	(create_std_terminate_master_breakpoint)
	(create_exception_master_breakpoint): Use all_objfiles.
	* linux-thread-db.c (try_thread_db_load_from_pdir)
	(has_libpthread): Use all_objfiles.
	* ada-lang.c (add_nonlocal_symbols): Use all_objfiles.
	* linespec.c (iterate_over_all_matching_symtabs)
	(search_minsyms_for_name): Use all_objfiles.
	* maint.c (maintenance_info_sections): Use all_objfiles.
	* main.c (captured_main_1): Use all_objfiles.
	* spu-tdep.c (spu_objfile_from_frame): Use all_objfiles.
	* guile/scm-objfile.c (gdbscm_objfiles): Use all_objfiles.
	* guile/scm-pretty-print.c
	(ppscm_find_pretty_printer_from_objfiles): Use all_objfiles.
	* solib-spu.c (append_ocl_sos): Use all_objfiles.
	* symmisc.c (maintenance_print_symbols): Use all_objfiles.
	(maintenance_print_msymbols): Use all_objfiles.
	* source.c (select_source_symtab): Use all_objfiles.
	* jit.c (jit_find_objf_with_entry_addr): Use all_objfiles.
	* symfile.c (remove_symbol_file_command)
	(expand_symtabs_matching, map_symbol_filenames): Use
	all_objfiles.
	* ppc-linux-tdep.c (ppc_linux_spe_context_inferior_created): Use
	all_objfiles.
	* dwarf2-frame.c (dwarf2_frame_find_fde): Use all_objfiles.
	* objc-lang.c (find_methods): Use all_objfiles.
	* objfiles.c (have_partial_symbols, have_full_symbols)
	(have_minimal_symbols, qsort_cmp)
	(default_iterate_over_objfiles_in_search_order): Use
	all_objfiles.
	* hppa-tdep.c (find_unwind_entry): Use all_objfiles.
	* psymtab.c (maintenance_print_psymbols): Use all_objfiles.
	(maintenance_check_psymtabs): Use all_objfiles.
	(ALL_PSYMTABS): Remove.
	* compile/compile-object-run.c (do_module_cleanup): Use
	all_objfiles.
	* blockframe.c (find_pc_partial_function): Use all_objfiles.
	* cp-support.c (add_symbol_overload_list_qualified): Use
	all_objfiles.
	* windows-tdep.c (windows_iterate_over_objfiles_in_search_order):
	Use all_objfiles.
	* dwarf-index-write.c (save_gdb_index_command): Use all_objfiles.
	* python/py-xmethods.c (gdbpy_get_matching_xmethod_workers): Use
	all_objfiles.
	* python/py-objfile.c (objfpy_lookup_objfile_by_name)
	(objfpy_lookup_objfile_by_build_id): Use all_objfiles.
	* python/py-prettyprint.c (find_pretty_printer_from_objfiles):
	Uses all_objfiles.
	* solib.c (solib_read_symbols): Use all_objfiles

This removes the ALL_PSPACE_OBJFILES macro in favor of ranged for
loops.

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* probe.c (parse_probes_in_pspace): Use all_objfiles.
	* guile/scm-progspace.c (gdbscm_progspace_objfiles): Use
	all_objfiles.
	* objfiles.h (ALL_PSPACE_OBJFILES): Remove.
	* symmisc.c (print_symbol_bcache_statistics)
	(print_objfile_statistics, maintenance_print_objfiles)
	(maintenance_info_symtabs, maintenance_check_symtabs)
	(maintenance_expand_symtabs, maintenance_info_line_tables): Use
	all_objfiles.
	* source.c (forget_cached_source_info): Use all_objfiles.
	* symfile-debug.c (set_debug_symfile): Use all_objfiles.
	* elfread.c (elf_gnu_ifunc_resolve_by_cache)
	(elf_gnu_ifunc_resolve_by_got): Use all_objfiles.
	* objfiles.c (update_section_map): Use all_objfiles.
	(shared_objfile_contains_address_p): Likewise.
	* psymtab.c (maintenance_info_psymtabs): Use all_objfiles.
	* python/py-progspace.c (pspy_get_objfiles): Use all_objfiles.

This introduces an iterable object which can be used to iterate over
objfiles.  It also introduces a generic "next_iterator", which can be
used to iterate over types that have a "next" field.

gdb/ChangeLog
2019-01-09  Tom Tromey  <tom@tromey.com>

	* common/next-iterator.h: New file.
	* objfiles.h (class all_objfiles): New.
	(struct objfile_iterator): New.

2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

	Merge from GCC:

	2019-01-09  Sandra Loosemore  <sandra@codesourcery.com>

	PR other/16615 [2/5]

	include/
	* libiberty.h: Mechanically replace "can not" with "cannot".
	* plugin-api.h: Likewise.

	libiberty/
	* cp-demangle.c: Mechanically replace "can not" with "cannot".
	* floatformat.c: Likewise.
	* strerror.c: Likewise.

2019-01-09  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* NEWS: Move the description of the changed "frame", "select-frame",
	and "info frame" commands to the Changed commands section.

Check for null before dereferencing an operand pointer.  Normally
this situation should never arise, but could happen if a "partial"
instruction is encountered at the end of a file or section.

opcodes/
	* s12z-dis.c (print_insn_s12z):  Do not dereference an
	operand if it is null.

gas/
	* testsuite/gas/s12z/jsr.s: New case.
	* testsuite/gas/s12z/jsr.d: New case.
opcodes/
	* s12z-dis.c (opr_emit_disassembly): Do not omit an index if it is
	zero.

An upcoming sync with gcc's libiberty [1] will remove support for old
mangling schemes (GNU v2, Lucid, ARM, HP and EDG).  It will remove the
cplus_demangle_opname function, so we need to get rid of its usages in
GDB (it's a GNU v2 specific function).

I think the changes are mostly relatively obvious, some hacks that were
necessary to support overloaded operators with GNU v2 mangling are not
needed anymore.

The change in stabsread.c is perhaps less obvious.  I think we could get
rid of more code in that region that is specific to old mangling
schemes, but I chose to do only the minimal changes required to remove
the cplus_demangle_opname uses.  There is also a detailed comment just
above that explaining how GNU v2 and v3 mangled symbols are handled, I
decided to leave it as-is, since I wasn't sure which part to remove,
change or leave there.

[1] The commit "Remove support for demangling GCC 2.x era mangling
schemes.", specifically.

gdb/ChangeLog:

	* gdbtypes.c (check_stub_method_group): Remove handling of old
	mangling schemes.
	* linespec.c (find_methods): Likewise.
	* stabsread.c (read_member_functions): Likewise.
	* valops.c (search_struct_method): Likewise.
	(value_struct_elt_for_reference): Likewise.
	* NEWS: Mention this change.

gdb/testsuite/ChangeLog:

	* gdb.cp/demangle.exp (test_gnu_style_demangling): Rename to...
	(test_gnuv3_style_demangling): ... this.
	(test_lucid_style_demangling): Remove.
	(test_arm_style_demangling): Remove.
	(test_hp_style_demangling): Remove.
	(do_tests): Remove calls to the above.

gdb/doc/ChangeLog:

	* gdb.texinfo (Print Settings): Remove mention of specific
	demangle-style values, just refer to the in-process help.

When printing source lines with calls to print_source_lines we need to
pass a start line number and an end line number.  The end line number
is calculated by calling get_lines_to_list and adding this value to
the start line number.  For example this code from list_command:

    print_source_lines (cursal.symtab, first,
                        first + get_lines_to_list (), 0);

The problem is that get_lines_to_list returns a value based on the
GDB setting `set listsize LISTSIZE`.  By default LISTSIZE is 10,
however, its also possible to set LISTSIZE to unlimited, in which
case get_lines_to_list will return INT_MAX.

As the parameter signature for print_source_lines is:

  void print_source_lines (struct symtab *, int, int,
                           print_source_lines_flags);

and `first` in the above code is an `int`, then when LISTSIZE is
`unlimited` the above code will result in signed integer overflow,
which is undefined.

The solution in this patch is a new class source_lines_range that can
be constructed from a single line number and a direction (forward or
backward).  The range is then constructed from the line number and the
value of get_lines_to_list.

gdb/ChangeLog:

	* cli/cli-cmds.c (list_command): Pass a source_lines_range to
	print_source_lines.
	* source.c (print_source_lines_base): Update line number check.
	(print_source_lines): New function.
	(source_lines_range::source_lines_range): New function.
	* source.h (class source_lines_range): New class.
	(print_source_lines): New declaration.

	* po/es.po: Updated Spanish translation.

Fix a heap use after free memory access fault when displaying error messages about malformed archives.

	PR 14049
	* readelf.c (process_archive): Use arch.file_name in error
	messages until the qualified name is available.

I noticed that when running this test:

  make check-gdb RUNTESTFLAGS="--target_board=native-gdbserver gdb.mi/mi-break.exp"

I would occasionally see some UNRESOLVED test results like this:

  (gdb)
  PASS: gdb.mi/mi-break.exp: mi-mode=separate: breakpoint at main
  Expecting: ^(kill[
  ]+)?(.*[
  ]+[(]gdb[)]
  [ ]*)
  kill
  &"kill\n"
  ~"Kill the program being debugged? (y or n) [answered Y; input not from terminal]\n"
  =thread-group-exited,id="i1"
  ERROR: Got interactive prompt.
  UNRESOLVED: gdb.mi/mi-break.exp: mi-mode=separate:

The problem appears to be that the expect buffer fills up to include
the '(y or n)' prompt without including the following lines.

The pattern supplied by the outer test script is looking for the
following lines.  As the following lines are not present then expect
matches on the interactive prompt case rather than the case for the
user supplied pattern.

The problem with this is that we are not really at an interactive
prompt, GDB is providing an answer for us and then moving on.  When I
examine a successful run of the test the output from GDB is identical,
the only difference is where expect happens to buffer the output from
GDB.

This patch remove all special handling of the interactive prompt
case.  This means that if we ever break GDB and start seeing an
unexpected interactive prompt then tests will rely on a timeout to
fail, instead of having dedicated interactive prompt detection, but
this solves the problem that an auto-answered prompt looks very
similar to an interactive prompt.

With this patch in place I can now leave the following loop running
indefinitely, where before it would fail usually after ~10
iterations.

  while make check-gdb RUNTESTFLAGS="--target_board=native-gdbserver gdb.mi/mi-break.exp"; \
  do /bin/true; \
  done

gdb/testsuite/ChangeLog:

	* lib/mi-support.exp (mi_gdb_test): Remove interactive prompt
	case.

Valgrind reports a leak in many tests, such as:
==9382== 16 bytes in 1 blocks are definitely lost in loss record 236 of 3,282
==9382==    at 0x4C2BE6D: malloc (vg_replace_malloc.c:309)
==9382==    by 0x4197AF: xrealloc (common-utils.c:64)
==9382==    by 0x51D16A: xresizevec<linespec_canonical_name> (poison.h:170)
==9382==    by 0x51D16A: add_sal_to_sals(linespec_state*, std::vector<symtab_and_line, std::allocator<symtab_and_line> >*, symtab_and_line*, char const*, int) (linespec.c:1041)
==9382==    by 0x51E2BF: create_sals_line_offset (linespec.c:2215)
==9382==    by 0x51E2BF: convert_linespec_to_sals(linespec_state*, linespec*) (linespec.c:2358)
==9382==    by 0x521B5D: convert_explicit_location_to_sals (linespec.c:2473)

Fix leak by xfree-ing self->canonical_names in linespec_state_destructor.
The leak probably appeared with the patch 'Remove cleanup from linespec.c',
as there was a cleanup to xfree canonical_names before the patch.

Tested on Debian/amd64, native and under valgrind.

2019-01-09  Philippe Waroquiers  <philippe.waroquiers@skynet.be>

	* linespec.c (linespec_state_destructor): Free self->canonical_names.

Adjust the `bfd/warning.m4` `egrep` patterns to handle preprocessors
that do not define `__GNUC__`, leaving the string in the output.

bfd/
	* warning.m4: Adjust egrep pattern for non-GNU compilers.
	* configure: Regenerate.
binutils/
	* configure: Regenerate.
gas/
	* configure: Regenerate.
gold/
	* configure: Regenerate.
gprof/
	* configure: Regenerate.
ld/
	* configure: Regenerate.
opcodes/
	* configure: Regenerate.

Fixes these:
bfin-elf  +FAIL: cxxfilt: demangling _Z1fIvJiELb0EEvPDOT1_EFT_DpT0_E
bfin-elf  +FAIL: cxxfilt: demangling _Z14int_if_addableI1YERiP1AIXszpldecvPT_Li0EdecvS4_Li0EEE
h8300-elf  +FAIL: cxxfilt: demangling _Z1fIvJiELb0EEvPDOT1_EFT_DpT0_E
h8300-elf  +FAIL: cxxfilt: demangling _Z14int_if_addableI1YERiP1AIXszpldecvPT_Li0EdecvS4_Li0EEE
i686-pe  +FAIL: cxxfilt: demangling _Z1fIvJiELb0EEvPDOT1_EFT_DpT0_E
i686-pe  +FAIL: cxxfilt: demangling _Z14int_if_addableI1YERiP1AIXszpldecvPT_Li0EdecvS4_Li0EEE
i686-vxworks  +FAIL: cxxfilt: demangling _Z1fIvJiELb0EEvPDOT1_EFT_DpT0_E
i686-vxworks  +FAIL: cxxfilt: demangling _Z14int_if_addableI1YERiP1AIXszpldecvPT_Li0EdecvS4_Li0EEE
m32c-elf  +FAIL: cxxfilt: demangling _Z1fIvJiELb0EEvPDOT1_EFT_DpT0_E
m32c-elf  +FAIL: cxxfilt: demangling _Z14int_if_addableI1YERiP1AIXszpldecvPT_Li0EdecvS4_Li0EEE

	* testsuite/binutils-all/cxxfilt.exp: Pass --no-strip-underscores
	unconditionally to tests needing the option rather than via a
	list of targets.

PR gdb/24060 points out a compilation failure of the C, Fortran and Pascal
parsers when they are built using the macOS system bison.  The bug is a name
clash between the VARIABLE token name and the VARIABLE enumerator in ui-out.h.

This patch renames VARIABLE in c-exp.y, f-exp.y and p-exp.y to DOLLAR_VARIABLE
to avoid the clash.  It also renames similar variables in other .y files so
that all languages use the same name.

gdb/ChangeLog
2019-01-07  Tom Tromey  <tom@tromey.com>
2019-01-07  Simon Marchi  <simon.marchi@ericsson.com>

	PR gdb/24060:
	* ada-exp.y (DOLLAR_VARIABLE): Rename from SPECIAL_VARIABLE.
	* ada-lex.l (DOLLAR_VARIABLE): Likewise.
	* c-exp.y (DOLLAR_VARIABLE): Rename from VARIABLE.
	* f-exp.y (DOLLAR_VARIABLE): Likewise.
	* m2-exp.y (DOLLAR_VARIABLE): Rename from INTERNAL_VAR.
	* p-exp.y (DOLLAR_VARIABLE): Rename from VARIABLE.

	PR 24044
	* cxxfilt.c (hp_symbol_characters): Delete.
	(main): Remove depcreated demangling styles.
	* stabs.c (parse_stab_argtypes): Remove support for old gnu v2
	demangling opnames.
	* testsuite/binutils-all/cxxfilt.exp: Use the
	--no-strip-underscore option for targets that do prefix their
	symbols with underscores.
	Update tests to elimiate those that use gnu v2 encoding.