* main.c (captured_main): Remove long-unused #if 0 blocks.

    * common/genmloop.sh: Add new parameter: -shell to specify the
        command interpreter to use to run the input file.  This is
        necessary because otherwise SHELL is taken from the user's
        environment, and not from the makefile that invoked this script
        and the user might not be running an sh-like shell.
        * cris/Makefile.in: Pass -shell parameter to genmloop.sh.
        * fr30/Makefile.in: Likewise.
        * frv/Makefile.in: Likewise.
        * i960/Makefile.in: Likewise.
        * iq2000/Makefile.in: Likewise.
        * m32r/Makefile.in: Likewise.

        * frv/mloop.in: Add missing start of line comment marker.

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daily update

* elfxx-mips.c (mips_elf_calculate_relocation): Avoid generating
relocations for undefined weak symbols with non-default visibility.
(_bfd_mips_elf_check_relocs): Use possibly_dynamic_relocs for
global symbols in shared libraries.
(allocate_dynrelocs): New function.
(_bfd_mips_elf_adjust_dynamic_symbol): Do not handle
possibly_dynamic_relocs here.
(_bfd_mips_elf_size_dynamic_sections): Call allocate_dynrelocs.

* Makefile.in (just-check): Remove.  Move body to...
(check): ... here.

* linux-low.c (sys/dir.h, sys/user.h): Remove includes.
(linux_write_memory): Remove declaration of errno.

bfd/ChangeLog:
* elf32-i386.c (struct elf_i386_link_hash_table): Added field
tls_module_base.
(elf_i386_link_hash_table_create): Initialize it.
(elf_i386_always_size_sections): Set it.
(set_tls_module_base): New.
(elf_i386_relocate_sections): Call it.
* elf64-x86-64.c (struct elf64_x86_64_link_hash_table): Added
field tls_module_base.
(elf64_x86_64_link_hash_table_create): Initialize it.
(elf64_x86_64_always_size_sections): Set it.
(set_tls_module_base): New.
(elf64_x86_64_relocate_sections): Call it.
Reported by Cary Coutant <ccoutant@google.com>
ld/testsuite/ChangeLog:
* ld-i386/tlsbindesc.dd: Adjust incorrect expectations for LD to
LE relaxation.
* ld-x86-64/tlsbindesc.dd: Likewise.
* ld-i386/tlsbindesc.rd: Adjust address of _TLS_MODULE_BASE_.
* ld-x86-64/tlsbindesc.rd: Likewise.
Reported by Cary Coutant <ccoutant@google.com>

* annotate.h (deprecated_annotate_starting_hook): Remove.
(deprecated_annotate_stopped_hook): Remove.
(deprecated_annotate_exited_hook): Remove.
* Makefile.in (annotate.o): Depend on observer_h.
* top.c (deprecated_delete_breakpoint_hook): Remove.
(deprecated_create_breakpoint_hook): Likewise.
(deprecated_modify_breakpoint_hook): Likewise.
* interps.c (clear_interpreter_hooks): Update for removed hooks.
* breakpoint.c (mention): Don't call removed hook.
(delete_breakpoint): Likewise.
(disable_breakpoint): Likewise.
(do_enable_breakpoint): Likewise.
* annotate.c: Include observer.h.
(breakpoint_changed): Change type of argument.
(_initialize_annotate): Register observers.
(deprecated_annotate_starting_hook): Remove.
(deprecated_annotate_stopped_hook): Remove.
(deprecated_annotate_exited_hook): Remove.
(annotate_starting): Update for hook removal.
(annotate_stopped): Likewise.
(annotate_exited): Likewise.
* defs.h (deprecated_delete_breakpoint_hook): Remove.
(deprecated_create_breakpoint_hook): Likewise.
(deprecated_modify_breakpoint_hook): Likewise.

* main.c (captured_main): Don't use BEFORE_MAIN_LOOP_HOOK.

warning fix

* elf32-arm.c (arm_map_one_stub): Declare variables at beginning
of block.
* elf32-avr.c (get_local_syms): Likewise.

* readelf.c (print_vma): Typo fix.

bfd/
PR 6769
* bfd-in.h (BFD_VMA_FMT): Define.
(printf_vma, sprintf_vma): Use the above.
(_bfd_int64_low, _bfd_int64_high): Delete.
* bfd-in2.h: Regenerate.
binutils/
PR 6769
* readelf.c (print_dec_vma, print_hex_vma): Delete.
(print_vma): Use BFD_VMA_FMT.
* size.c (size_number, rprint_number): Likewise.

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daily update

* configure.ac: Check for the GNU/Linux ptrace signature.
* configure: Regenerated.

* linux-nat.c (resume_callback): Add more debugging output.
(linux_nat_has_pending_sigint): New function, based on
linux_nat_has_pending.
(set_ignore_sigint, maybe_clear_ignore_sigint): New functions.
(stop_wait_callback): Remove flush_mask handling.  Honor
ignore_sigint.  Call maybe_clear_ignore_sigint.  Pass NULL
to recursive calls.
(linux_nat_has_pending, flush_callback): Remove.
(linux_nat_filter_event): Check for ignore_sigint.
(linux_nat_wait): Remove flush_mask support and call to
flush_callback.  Use set_ignore_sigint and maybe_clear_ignore_sigint.
* linux-nat.h (struct lwp_info): Add ignore_sigint field.

* gdb.threads/manythreads.exp: Use remote_expect instead of after.
Add a test for duplicated SIGINTs.

* linux-nat.c (count_events_callback, select_event_lwp_callback): Only
report events from resumed threads.

* gdb.threads/schedlock.exp (get_args): Update to work for any
value of NUM.
(Top level): Report the number of threads that did not resume.

* gdb.dwarf2/dw2-compressed.S: Also define __start.

* lib/mi-support.exp (default_mi_gdb_start): Remove check for
non-MI prompt.

* mips-linux-tdep.c (mips_linux_syscall_next_pc): New function.
(mips_linux_init_abi): Set tdep->syscall_next_pc.
* mips-tdep.c (enum mips_fpu_type, struct gdbarch_tdep): Move to
mips-tdep.h.
(mips32_next_pc): Handle the syscall instruction.
* mips-tdep.h (enum mips_fpu_type, struct gdbarch_tdep): New,
from mips-tdep.c.  Add syscall_next_pc to gdbarch_tdep.

* ld-gc/gc.exp (test_gc): xfail powerpc64.

* elf.c (_bfd_elf_make_section_from_shdr): Ignore return from
elf_parse_notes.  Use bfd_malloc_and_get_section.
(elf_parse_notes): Validate note namesz and descsz.

gdb:
PR gdb/1158:
* valops.c (value_struct_elt): Treat function-valued field as a
static method.
gdb/testsuite:
* gdb.base/callfuncs.c (struct struct_with_fnptr): New struct.
(function_struct, function_struct_ptr): New globals.
* gdb.base/callfuncs.exp (do_function_calls): Test calling via a
function pointer in a struct.

gdb:
PR gdb/1136:
* macroexp.c (get_punctuator) <punctuators>: Rearrange to put
longer tokens first.
gdb/testsuite:
* gdb.base/macscp.exp: Add test for macro lexing bug.

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daily update

missed from last commit

Support PowerPC single-precision float.

Kill cmd_async_ok.
        * cli/cli-decode.h (CMD_ASYNC_OK, set_cmd_async_ok)
        (get_cmd_async_ok): Remove.
        * cli/cli-decode.c (set_cmd_async_ok, get_cmd_async_ok): Remove.
        * cli/cli-cmds.c (init_cli_cmds): Don't use set_cmd_async_ok.
        * infcmd.c (_initialize_infcmd): Likewise.
        * thread.c (_initialize_thread): Likewise.

* ld-scripts/include.exp: Don't run test for aout.
* ld-scripts/include.s: Use .fill rather than .4byte.
* ld-scripts/include-1.d: Adjust.

* mips-tdep.c (mips_n32n64_push_dummy_call): Handle passing
128-bit long doubles in even-odd pairs of FPRs.  Do not
right-align float arguments for big-endian.
(mips_n32n64_return_value): Apply return value convention for
structs containing one or two floating-point values to soft-float
as well as hard-float.  Handle 128-bit long doubles in such
structs.
(mips_o32_push_dummy_call): Only skip one integer register for a
float argument passed in an FPR.

* binutils-all/objdump.exp: Run compressed debug test only for ELF.

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daily update

    * acinclude.m4: Remove libide, libgui, and all the other Tcl
        functions.
        * tcl.m4: New file.

gdb:
* tui/tui-hooks.c: Include observer.h.
(tui_event_default, tui_old_event_hooks, tui_event_hooks):
Remove.
(tui_bp_created_observer, tui_bp_deleted_observer,
tui_bp_modified_observer): New globals.
(tui_install_hooks): Use observers, not events.
(tui_remove_hooks): Likewise.
* mi/mi-cmd-break.c: Include observer.h, not gdb-events.h.
(mi_breakpoint_observers_installed, mi_can_breakpoint_notify): New
globals.
(breakpoint_notify): Check mi_can_breakpoint_notify.
(breakpoint_hooks): Remove.
(mi_cmd_break_insert): Attach observers.  Don't use events.
* tracepoint.c: Include observer.h, not gdb-events.h.
(tracepoint_operation, trace_pass_command): Notify observer.
* interps.c: Don't include gdb-events.h.
(clear_interpreter_hooks): Don't call clear_gdb_event_hooks.
* gdbarch.c: Rebuild.
* gdbarch.sh: Emit include for observer.h, not gdb-events.h.
(deprecated_current_gdbarch_select_hack): Notify observer.
* breakpoint.h: Don't include gdb-events.h.
* breakpoint.c: Don't include gdb-events.h.
(condition_command): Notify observer.
(commands_command): Likewise.
(commands_from_control_command): Likewise.
(mention, delete_breakpoint, set_ignore_count): Likewise.
(disable_breakpoint, do_enable_breakpoint): Likewise.
* Makefile.in (gdb_events_h): Remove.
(breakpoint_h): Update.
(COMMON_OBS): Remove gdb-events.o.
(gdb-events.o): Remove.
(breakpoint.o, gdbarch.o, interps.o, tracepoint.o, gdbtk-bp.o,
gdbtk-hooks.o, mi-cmd-break.o, tui-hooks.o): Update.
* gdb-events.c: Remove.
* gdb-events.h: Remove.
* gdb-events.sh: Remove.
gdb/doc:
* observer.texi (GDB Observers): Document new observers:
breakpoint_created, breakpoint_deleted, breakpoint_modified,
tracepoint_created, tracepoint_deleted, tracepoint_modified,
architecture_changed.
gdb/gdbtk:
* generic/gdbtk-hooks.c: Include observer.h, not gdb-events.h.
(gdbtk_add_hooks): Use observers, not events.
(gdbtk_architecture_changed): Add argument, for observer.
* generic/gdbtk-bp.c: Include observer.h.
(gdb_set_bp): Notify observer.
(gdb_set_bp_addr): Likewise.

PR 5990
* descriptors.cc: New file.
* descriptors.h: New file.
* gold-threads.h (class Hold_optional_lock): New class.
* fileread.cc: Include "descriptors.h".
(File_read::~File_read): Release descriptor rather than closing
it.
(File_read::open) [file]: Call open_descriptor rather than open.
Set is_descriptor_opened_.
(File_read::open) [memory]: Assert that descriptor is not open.
(File_read::reopen_descriptor): New function.
(File_read::release): Release descriptor.
(File_read::do_read): Make non-const.  Reopen descriptor.
(File_read::read): Make non-const.
(File_read::make_view): Reopen descriptor.
(File_read::do_readv): Likewise.
* fileread.h (class File_read): Add is_descriptor_opened_ field.
Update declarations.
* layout.cc: Include "descriptors.h".
(Layout::create_build_id): Use open_descriptor rather than open.
* output.cc: Include "descriptors.h".
(Output_file::open): Use open_descriptor rather than open.
* archive.cc (Archive::const_iterator): Change Archive to be
non-const.
(Archive::begin, Archive::end): Make non-const.
(Archive::count_members): Likewise.
* archive.h (class Archive): Update declarations.
* object.h (Object::read): Make non-const.
* Makefile.am (CCFILES): Add descriptors.cc.
(HFILES): Add descriptors.h.
* Makefile.in: Rebuild.

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daily update

PR 6716
* gold.h: Always include <clocale>.  Add Solaris workarounds
following code in binutils/sysdep.h.

PR 6048
* ehframe.cc (Eh_frame::add_ehframe_input_section): Check whether
this->eh_frame_hdr_ is NULL before using it.

* dynobj.cc (Versions::Versions): Update comment.

2008-07-24  H.J. Lu  <hongjiu.lu@intel.com>

* gas/i386/nops-1.d: Add -mtune=generic32.
* gas/i386/nops-2.d: Likewise.
* gas/i386/nops-3.d: Likewise.

* gas/i386/x86-64-nops-1.d: Add -mtune=generic64.
* gas/i386/x86-64-nops-2.d: Likewise.
* gas/i386/x86-64-nops-3.d: Likewise.
* gas/i386/x86-64-nops-4.d: Likewise.

* elf32-mips.c (elf_backend_write_section): Define.

* remote.c (remote_threads_extra_info): Don't query the remote
server about info on the internally added main thread.

merge from gcc

* nto-procfs.c (procfs_attach): Populate initial thread list.
(procfs_wait): Return new pid, built from the inferior status.

    * elf.c (_bfd_elf_map_sections_to_segments): Catch off by one
        error assigning sections to segments.

* dynobj.cc (Versions::Versions): If there is an soname, use it as
the base version name.

* config/bfin-parse.y (asm_1): Error if plain symbol is used
as load/store offset.

* stringpool.cc (Stringpool_template::add_with_length): Set key to
array size plus one.
(Stringpool_template::set_string_offsets): Subtract one from key
before using it as an array index.
(Stringpool_template::get_offset_with_length): Likewise.
(Stringpool_template::write_to_buffer): Likewise.
* stringpool.h (Stringpool_template::get_offset_from_key):
Likewise.

PR 6658
* object.h (Merged_symbol_value::value): Do our best to handle a
negative addend.

daily update

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PR 6647
* script.cc (Version_script_info::get_versions): Don't add empty
version tag to return value.
(Version_script_info::get_symbol_version_helper): Change return
type to bool.  Add pversion parameter.  Change all callers.
(script_register_vers_node): Don't require a non-NULL tag.
* script.h (class Version_script_info): Update declarations.
(Version_script_info::get_symbol_version): Change return type to
bool.  Add version parameter.  Change all callers.
* symtab.cc (Sized_symbol::add_from_relobj): Rework version
handling.  Handle an empty version from a version script.
(Symbol_table::define_special_symbol): Likewise.
* testsuite/ver_test_10.script: New file.
* testsuite/ver_test_10.sh: New file.
* testsuite/Makefile.am (check_SCRIPTS): Add ver_test_10.sh.
(check_DATA): Add ver_test_10.syms.
(ver_test_10.syms, ver_test_10.so): New target.
* testsuite/Makefile.in: Rebuild.

* configure.ac (CONFIG_INITS): Delete long obsoleted variable.
* configure: Regenerate.

2008-07-23  Simon Baldwin  <simonb@google.com>

        * symtab.cc (Symbol_table::sized_write_symbol): Only set st_size
        to zero for undefined symbols from dynamic libraries.

* symtab.cc (Symbol_table::resolve): Remove version parameter.
Change all callers.
* symtab.h (class Symbol_table): Update declaration.
* testsuite/ver_test_9.cc: New file.
* testsuite/Makefile.am (check_PROGRAMS): Add ver_test_9.
(ver_test_9_SOURCES, ver_test_9_DEPENDENCIES): Define.
(ver_test_9_LDFLAGS, ver_test_9_LDADD): Define.
(ver_test_9.so, ver_test_9.o): New targets.
* testsuite/Makefile.in: Rebuild.

* nto-procfs.c (procfs_xfer_memory): Changed signature.
(procfs_resume): Workaround for dereferencing type-punned pointer
warning.
* nto-tdep.c (nto_parse_redirection): Change signature to be const
correct.
* nto-tdep.h (nto_parse_redirection): Likewise.

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daily update

* options.h (class General_options): Define --check-sections.
* layout.cc (Layout::set_segment_offsets): Handle
--check-sections.

* options.h (class General_options): Define -n/--nmagic and
-N/--omagic.
* options.cc (General_options::finalize): For -n/--nmagic or
-N/--omagic, set -static.
* layout.cc (Layout::attach_allocated_section_to_segment): If
-N/--omagic, don't put read-only and read-write sections in
different segments.
(Layout::find_first_load_seg): If -N/--omagic, don't insist on
finding a read-only segment.
(Layout::set_segment_offsets): If -N/--omagic or -n/--nmagic,
don't set the minimum segment alignment to the common page size,
and don't set the file offset to the address modulo the page size.
* script-sections.cc (Script_sections::create_segments): If
-n/--omagic, don't put read-only and read-write sections in
different segments.

* cref.cc: New file.
* cref.h: New file.
* options.h (class General_options): Add --print-symbol-counts.
* main.cc (main): Issue defined symbol report if requested.
* archive.cc (Archive::interpret_header): Make into a const member
function.
(Archive::add_symbols): Call Input_objects::archive_start and
archive_stop.
(Archive::const_iterator): Define new class.
(Archive::begin, Archive::end): New functions.
(Archive::include_all_members): Rewrite to use iterator.
(Archive::count_members): New function.
* archive.h (class Archive): Update declarations.
(Archive::filename): New function.
* object.cc: Include "cref.h".
(Sized_relobj::Sized_relobj): Initialize defined_count_.
(Sized_relobj::do_get_global_symbol_counts): New function.
(Input_objects::add_object): Add object to cross-referencer.
(Input_objects::archive_start): New function.
(Input_objects::archive_stop): New function.
(Input_objects::print_symbol_counts): New function.
* object.h: Declare Cref and Archive.
(Object::get_global_symbol_counts): New function.
(Object::do_get_global_symbol_counts): New pure virtual function.
(class Sized_relobj): Add defined_count_ field.  Update
declarations.
(class Input_objects): Add cref_ field.  Update constructor.
Update declarations.
* dynobj.cc (Sized_dynobj::Sized_dynobj): Initialize symbols_ and
defined_count_.
(Sized_dynobj::do_add_symbols): Allocate symbols_ if printing
symbol counts.
(Sized_dynobj::do_get_global_symbol_counts): New function.
* dynobj.h (class Sized_dynobj): Add fields symbols_ and
defined_count_.  Update declarations.  Define Symbols typedef.
* symtab.cc (Symbol_table::add_from_relobj): Add defined
parameter.  Change all callers.
(Symbol_table::add_from_dynobj): Add sympointers and defined
parameters.  Change all callers.
* symtab.h (class Symbol_table): Update declarations.
* Makefile.am (CCFILES): Add cref.cc.
(HFILES): Add cref.h.
* Makefile.in: Rebuild.

2008-07-22  Simon Baldwin  <simonb@google.com>

        * symtab.cc (Symbol_table::sized_write_symbol): Set symbol size
        to zero when writing undefined symbols.

Update for elf_link_output_extsym change

    * elf.c (_bfd_elf_map_sections_to_segments): Allow sections in
        adjoining pages to be included in the same segment.

    * config/tc-mips.c (mips_ip): Reset s to argsStart.
        * gas/mips/tls-ill.l: Update error message.
        * gas/mips/octeon-ill.l: Likewise.

* config/tc-bfin.c (bfin_gen_loop): Remove loop symbol.

* output.cc (Output_section::add_input_section): Don't try to
merge empty merge sections.

2008-07-22  Simon Baldwin  <simonb@google.com>

        * elflink.c (elf_link_output_extsym): Set st_size to zero for
        symbols from dynamic libraries.

Scrub remnants of IN_SOLIB_DYNSYM_RESOLVE_CODE.
* gdbarch.sh: Adjust comment to refer to
in_solib_dynsym_resolve_code().
* gdbarch.h, gdbarch.c: Update.
* solib-osf.c: Ditto.
* infrun.c: Ditto.
(handle_inferior_event): Use in_solib_dynsym_resolve_code
unconditionally.
* config/mips/nm-irix5.h: Remove undef of
IN_SOLIB_DYNSYM_RESOLVE_CODE.

* gdbint.texinfo: Refer to target_so_ops.in_dynsym_resolve_code
instead of IN_SOLIB_DYNSYM_RESOLVE_CODE.

daily update

*** empty log message ***

2008-07-21  Craig Silverstein  <csilvers@google.com>

* symtab.cc (Symbol_table::warn_about_undefined_dynobj_symbol):
Include symbol version in error message.

* config/tc-h8300.c (fix_operand_size): Use the default size
specified by the .lbranch/.sbranch pseudos.

gdb
* symfile.c (reread_symbols): Don't pass argument to observer.
* exec.c (exec_file_attach): Don't pass argument to observer.
* ada-lang.c (ada_executable_changed_observer): Remove argument.
* symtab.c (symtab_observer_executable_changed): Remove argument.
* observer.sh: Handle functions with no arguments.
gdb/doc
* observer.texi (GDB Observers): Remove obsolete comment.
<executable_changed>: Remove argument.

2008-07-21  H.J. Lu  <hongjiu.lu@intel.com>

PR ld/4424
* elflink.c (_bfd_elf_merge_symbol): Call bed->relocs_compatible
to check if 2 inputs are compatible.

    * elf.c (assign_file_positions_for_load_sections): Print vma in
        error message about overlapping section vmas.

2008-07-21  H.J. Lu  <hongjiu.lu@intel.com>

PR ld/6747
* elf32-frv.c (elf32_frv_relocate_section): Revert the change
for PR ld/6446 checked in by accident on May 21, 2008.

    * coff-sh.c (bfd_pe_print_pdata): Define to NULL for non
        COFF_WITH_PE based SH ports.
        * libpei.h (_bfd_XX_print_ce_compressed_pdata): Prototype.
        * arm-wince-pe.c (bfd_pe_print_pdata): Use
        _bfd_pe_print_ce_compressed_pdata.
        (slurp_symcache, cleanup_syms, pe_print_ce_compressed_pdata): Move
        to...
        * peXXigen.c: ... here and rename pe_print_ce_compressed_pdata to
        _bfd_XX_print_ce_compressed_pdata.

    * ld-scripts/include-sections.t: Discard all sections not
        explicitly requested by the rest of the linker script.
        * ld-scripts/include-1.d: Expect test to fail for AIX ports.
        Do not assume that the .text section will be marked readonly.
        * ld-scripts/include.s: Replace .section directives with just
        .text or .data.

* elf-eh-frame.c (_bfd_elf_discard_section_eh_frame): Drop
unwanted zero terminators.

* elf32-spu.c (spu_elf_relocate_section): Expand
RELOC_FOR_GLOBAL_SYMBOL.  Don't warn about undefined symbols for
R_SPU_PPU32 and R_SPU_PPU64 relocations.

2008-07-20  Chris Demetriou  <cgd@google.com>

        * configure.ac (gold_cv_c_random_seed): New configured variable.
        (RANDOM_SEED_CFLAGS): New substituted variable.
        * Makefile.am (AM_CFLAGS, AM_CXXFLAGS): Add $(RANDOM_SEED_CFLAGS).
        * configure: Rebuild.
        * Makefile.in: Likewise.
        * testsuite/Makefile.in: Likewise.

* bfd/elf-bfd.h: Declare elfcore_write_ppc_vsx.
* bfd/elf.c (elfcore_grok_ppc_vsx): New function.
(elfcore_write_ppc_vsx): New function
(elfcore_grok_note): Handle VSX notes.
(elfcore_write_register_note): Handle VSX notes.
* include/elf/common.h: Define NT_PPC_VSX.
* binutils/readelf.c (get_note_type): Handle VSX notes.

2008-07-20  Sergei Poselenov  <sposelenov@emcraft.com>
            Chris Demetriou  <cgd@google.com>

        * elfread.c (elf_symfile_segments): Fix the check that each loadable
        section fits within an ELF segment to handle ELF segments that hit
        the end of the address space.

daily update

*** empty log message ***

2008-07-20  Chris Demetriou  <cgd@google.com>

        * MAINTAINERS (Write After Approval): Add self.

daily update

*** empty log message ***

*** empty log message ***

daily update

* config/tc-m32c.h (H_TICK_HEX): Define.
* config/tc-m32c.c (OPTION_H_TICK_HEX): Define.
(md_longopts): Add support for it.
(md_parse_option): Likewise.
* doc/as.texinfo (Overview): Add new m32c options.
* doc/c-m32c.texi (M32C-Modifiers): Likewise

* as.h: (enable_h_tick_hex): New.
* app.c (enable_h_tick_hex): New.
(LEX_IS_H): New.
(do_scrub_begin): Mark 'H' and 'h' as special if enable_h_tick_hex.
(do_scrub_chars): If enable_h_tick_hex and 'h', check for H'00
style hex constants and convert the input stream to 0x00 style.
(do_scrub_chars): If a 'X style character constant is found after
a symbol character (like you're or X'00), warn the user.

gdb
PR gdb/855:
* NEWS: Add entry for macro commands.
* Makefile.in (macrocmd.o): Add gdb_string.h.
* macroscope.h (user_macro_scope): Declare.
(default_macro_scope): Update documentation.
(macro_user_macros): Declare.
* c-lang.c (c_preprocess_and_parse): Always attempt macro lookup.
Use user_macro_scope.
(null_macro_lookup): Remove.
* macrotab.h (macro_callback_fn): Declare.
(macro_for_each): Likewise.
(macro_allow_redefinitions): Likewise.
* macrotab.c (foreach_macro): New function
(macro_for_each): Likewise.
(struct macro_table) <redef_ok>: New field.
(macro_allow_redefinitions): New function.
(new_macro_table): Update.
(macro_define_function): Likewise.
(macro_define_object): Likewise.
* macroscope.c (user_macro_scope): New function.
(default_macro_scope): Use it.
(macro_user_macros): New global.
(standard_macro_lookup): Look in macro_user_macros.
(_initialize_macroscope): New function.
* macroexp.h (macro_is_whitespace, macro_is_digit,
macro_is_identifier_nondigit): Declare.
* macroexp.c (macro_is_whitespace): Rename.  No longer static.
(macro_is_digit): Likewise.
(macro_is_identifier_nondigit): Likewise.
(get_identifier): Update.
(get_pp_number): Likewise.
(get_token): Likewise.
* macrocmd.c (skip_ws): New function.
(extract_identifier): Likewise.
(free_macro_definition_ptr): Likewise.
(user_macros): Remove.
(macro_define_command): Implement.
(_initialize_macrocmd): Update.
(macro_undef_command): Implement.
(print_one_macro): New function.
(macro_list_command): Implement.
gdb/doc
* gdb.texinfo (Macros): Update.  Use @code rather than @command.
gdb/testsuite
* gdb.base/macscp.exp: Add macro tests.

bfd:
* bfd-in.h (bfd_elf32_arm_set_target_relocs): Add new parameter.
* bfd-in2.h: Regenerate.
* elf32-arm.c (struct elf_arm_obj_tdata): Add field
no_wchar_size_warning.
(bfd_elf32_arm_set_target_relocs): Add new parameter
no_wchar_warn.
(elf32_arm_merge_eabi_attributes): Give a warning, not an error,
for conflicting wchar_t attributes.  Do not warn if
--no-wchar-size-warning.  Make diagnostic text more specific.

ld:
* ld.texinfo (--no-wchar-size-warning): Document new ARM option.
* emultempl/armelf.em (no_wchar_size_warning): New.
(arm_elf_create_output_section_statements): Pass
no_wchar_size_warning to arm_elf_create_output_section_statements.
(OPTION_NO_WCHAR_SIZE_WARNING): New.
(PARSE_AND_LIST_LONGOPTS): Add no-wchar-size-warning.
(PARSE_AND_LIST_OPTIONS): List --no-wchar-size-warning.
(PARSE_AND_LIST_ARGS_CASES): Handle --no-wchar-size-warning.

ld/testsuite:
* ld-arm/attr-merge-wchar-0.s,ld-arm/attr-merge-wchar-2.s,
ld-arm/attr-merge-wchar-4.s, ld-arm/attr-merge-wchar-00-nowarn.d,
ld-arm/attr-merge-wchar-00.d, ld-arm/attr-merge-wchar-02-nowarn.d,
ld-arm/attr-merge-wchar-02.d, ld-arm/attr-merge-wchar-04-nowarn.d,
ld-arm/attr-merge-wchar-04.d, ld-arm/attr-merge-wchar-20-nowarn.d,
ld-arm/attr-merge-wchar-20.d, ld-arm/attr-merge-wchar-22-nowarn.d,
ld-arm/attr-merge-wchar-22.d, ld-arm/attr-merge-wchar-24-nowarn.d,
ld-arm/attr-merge-wchar-24.d, ld-arm/attr-merge-wchar-40-nowarn.d,
ld-arm/attr-merge-wchar-40.d, ld-arm/attr-merge-wchar-42-nowarn.d,
ld-arm/attr-merge-wchar-42.d, ld-arm/attr-merge-wchar-44-nowarn.d,
ld-arm/attr-merge-wchar-44.d: New.
* ld-arm/arm-elf.exp: Run new tests.

* configure.ac: Put old value of $LIBS after -lbfd -liberty $intl
in BFD ELF check.
* configure: Regenerate.