From Andrew Chatham: add signedrel<>, rel32s and friends.

*** empty log message ***

2007-09-27  H.J. Lu  <hongjiu.lu@intel.com>

* i386-dis.c (dis386): Swap X86_64_27 with OPC_EXT_2.
(x86_64_table): Likewise.
(opc_ext_table): Likewise.

* arm-linux-tdep.c (arm_linux_software_single_step): New.
(arm_linux_init_abi): Use it.
* arm-tdep.c (arm_get_next_pc): Make global.  Handle all-ones
condition correctly.
* arm-tdep.h (arm_get_next_pc): Declare.
* Makefile.in (arm-linux-tdep.o): Update.

gas/testsuite/gas/

2007-09-27  H.J. Lu  <hongjiu.lu@intel.com>

PR binutils/5072
* gas/i386/i386.exp: Run x86-64-opcode-inval and
x86-64-opcode-inval-intel.

* gas/i386/x86-64-opcode-inval-intel.d: New.
* gas/i386/x86-64-opcode-inval.d: Likewise.
* gas/i386/x86-64-opcode-inval.s: Likewise.

opcodes/

2007-09-27  H.J. Lu  <hongjiu.lu@intel.com>

PR binutils/5072
* i386-dis.c: Update comments on '{', '}' and '|' to support
only AT&T and Intel modes.
(X86_64_4...X86_64_27): New.
(dis386): Updated.  Use X86_64_4...X86_64_21.
(dis386_twobyte): Updated.
(float_mem): Likewise.
(x86_64_table): Add X86_64_4...X86_64_27.
(opc_ext_table): Updated.  Use X86_64_22 and X86_64_27.
(putop): Updated handling of '{', '}' and '|' to support only
AT&T and Intel modes.

* varobj.c (install_new_value): Don't
call value_get_print_value when a value is
lazy.  Update the print_value member in a
single place.

Undo this part of previous checkin:

     * gdb.mi/mi2-var-child.exp: Step over said
     initialization.

It's not necessary, and breaks the test.

    * gdb.mi/var-cmd.c (do_children_tests): Initialize
        the 'struct_declarations' variable to zeros.
        * gdb.mi/mi2-var-child.exp: Step over said
        initialization.

gas/
* config/m68k-parse.h (m68k_register): Use MBO instead of MBB.
(last_movec_reg): Change to MBO.
* config/tc-m68k.c (fido_ctrl): Use MBO instead of MBB.
(m68k_ip): Use MBO instead of MBO.
(init_table): Use MBO instead of MBO.  Add an entry for mbo.

gas/testsuite/
* gas/m68k/fido.s: Add tests for %mbo.
* gas/m68k/fido.d: Update accordingly.

opcodes/
* m68k-dis.c (print_insn_arg): Use %mbo instead of %mbb.

*** empty log message ***

daily update

* breakpoint.c (create_breakpoint): Set
condition on each location, not on the first
location of breakpoint.

* remote.c (getpkt_sane): Fix error message.  No animals were
harmed in the making of this debugger.

Fix typo in last patch.

* mt-asm.c (parse_imm16): Reword error message in order to allow it to be translated properly.
* ia64-gen.c (print_dependency_table): Likewise.
* mips-dis.c (print_insn_args): Likewise.

2007-09-26  Pierre Muller  <muller@ics.u-strasbg.fr>

* p-typeprint.c: Fix 11 ARI reported problems.
(pascal_print_type): Fix 4 operator at end of line.
(pascal_type_print_method_args) : Replace 2 DEPRECATED_STREQN macros
using strncmp function.
(pascal_type_print_base): Fix 2 operator at end of line.
(pascal_type_print_base) : Replace 3 DEPRECATED_STREQN macros
using strncmp function.

2007-09-26  Pierre Muller  <muller@ics.u-strasbg.fr>

* Fix PR pascal/2231
dwarf2read.c (read_subroutine_type):
All pascal functions are prototyped.

bfd/
2007-09-26  Jan Beulich  <jbeulich@novell.com>

* elf32-i386.c (elf_i386_check_relocs): Revert NULL pointer
check for R_386_GNU_VTINHERIT.
* elf-m10300.c (mn10300_elf_check_relocs): Check for NULL
pointer for R_xxx_GNU_VTENTRY.
* elf32-arm.c (elf32_arm_check_relocs): Likewise.
* elf32-bfin.c (bfin_check_relocs): Likewise.
(bfinfdpic_check_relocs): Likewise.
* elf32-cris.c (cris_elf_check_relocs): Likewise.
* elf32-d10v.c (elf32_d10v_check_relocs): Likewise.
* elf32-dlx.c (elf32_dlx_check_relocs): Likewise.
* elf32-fr30.c (fr30_elf_check_relocs): Likewise.
* elf32-frv.c (elf32_frv_check_relocs): Likewise.
* elf32-hppa.c (elf32_hppa_check_relocs): Likewise.
* elf32-iq2000.c (iq2000_elf_check_relocs): Likewise.
* elf32-m32r.c (m32r_elf_check_relocs): Likewise.
* elf32-m68hc1x.c (elf32_m68hc11_check_relocs): Likewise.
* elf32-m68k.c (elf_m68k_check_relocs): Likewise.
* elf32-mcore.c (mcore_elf_check_relocs): Likewise.
* elf32-openrisc.c (openrisc_elf_check_relocs): Likewise.
* elf32-ppc.c (ppc_elf_check_relocs): Likewise.
* elf32-s390.c (elf_s390_check_relocs): Likewise.
* elf32-score.c (_bfd_score_elf_check_relocs): Likewise.
* elf32-sh.c (sh_elf_check_relocs): Likewise.
* elf32-v850.c (v850_elf_check_relocs): Likewise.
* elf32-vax.c (elf_vax_check_relocs): Likewise.
* elf32-xstormy16.c (xstormy16_elf_check_relocs): Likewise.
* elf32-xtensa.c (elf_xtensa_check_relocs): Likewise.
* elf64-mmix.c (mmix_elf_check_relocs): Likewise.
* elf64-ppc.c (ppc64_elf_check_relocs): Likewise.
* elf64-s390.c (elf_s390_check_relocs): Likewise.
* elf64-sh64.c (sh_elf64_check_relocs): Likewise.
* elf64-x86-64.c (elf64_x86_64_check_relocs): Likewise.
* elfxx-mips.c (_bfd_mips_elf_check_relocs): Likewise.
* elfxx-sparc.c (_bfd_sparc_elf_check_relocs): Likewise.

gas/testsuite/
2007-09-26  Jan Beulich  <jbeulich@novell.com>

* gas/i386/x86-64-addr32.d: Adjust expectations.

opcodes/
2007-09-26  Jan Beulich  <jbeulich@novell.com>

* i386-dis.c (OP_E_extended): Distinguish rip- and eip-
relative addressing. Update used_prefixes based on whether any
base or index register was printed.

gas/
2007-09-26  Jan Beulich  <jbeulich@novell.com>

* config/tc-i386.c (build_modrm_byte): Also check for RegEip
when considering IP-relative addressing.

gas/testsuite/
2007-09-26  Jan Beulich  <jbeulich@novell.com>

* gas/i386/reloc64.s: Adjust for %eip-relative addressing no
longer generating errors.
* gas/i386/reloc64.d, gas/i386/reloc64.l: Update.
* gas/i386/x86-64-addr32.s: Remove explicit addr32 prefix
for %eip-realtive addressing case.

opcodes/
2007-09-26  Jan Beulich  <jbeulich@novell.com>

* i386-opc.h (RegEip): Define.
(RegEiz): Adjust.
* i386-reg.tbl: Add eip. Mark rip and eip with RegRex64.
* i386-tbl.h: Re-generate.

* elflink.c (set_symbol_value): Add isymbuf and locsymcount
params.  Change symidx to a size_t.  Don't access past end
of symbol buffer.
(resolve_symbol): Add isymbuf param and use instead of
finfo->internal_syms.
(eval_symbol, evaluate_complex_relocation_symbols): Likewise.
(elf_link_input_bfd): Don't read symbols specially for
evaluate_complex_relocation_symbols.

2007-09-26  Pierre Muller  <muller@ics.u-strasbg.fr>

* Fix PR pascal/2283
p-valprint.c (pascal_val_print): correct current language check.
Also print array of char as strings.

* mips-tdep.c (mips_n32n64_return_value): Fix a comment.

gas/
2007-09-26  Jan Beulich  <jbeulich@novell.com>

* config/tc-i386.h (md_register_arithmetic): Define.
* config/tc-ia64.h (md_register_arithmetic): Likewise.
* doc/internals.texi: Document md_register_arithmetic.
* expr.c (make_expr_symbol): Force O_register expressions into
reg_section.
(expr): Provide default for md_register_arithmetic. Don't resolve
adding/subtracting constants to/from registers if
md_register_arithmetic is zero.

* som.c (som_get_reloc_upper_bound): If there are no relocs return enough
  space to hold a NULL pointer.

gas/
2007-09-26  Jan Beulich  <jbeulich@novell.com>

* dw2gencfi.c: Conditionalize whole body upon TARGET_USE_CFIPOP.
(cfi_finish): Add second empty instance.

Put size and endianness in parameters.

gas/
2007-09-26  Jan Beulich  <jbeulich@novell.com>

* config/tc-ia64.c (dot_pred_rel): Replace specialized handling
with simple call to parse_operand.

gas/
2007-09-26  Jan Beulich  <jbeulich@novell.com>

* config/tc-i386.c (NUM_FLAG_CODE): Remove.

gas/
2007-09-26  Jan Beulich  <jbeulich@novell.com>

* as.c (itbl_parse): Remove #define.
(struct itbl_file_list): Move down and ...
(itbl_files): .. conditionalize upon HAVE_ITBL_CPU.
(show_usage): Conditionalize printing of --itbl option upon
HAVE_ITBL_CPU.
(parse_args): Conditionalize handling of -t/--itbl options upon
HAVE_ITBL_CPU. Remove OPTION_INSTTBL and replace its use with
't'.

Basic DWARF constants.

Add basic exception frame header, plus test.

gas/

2007-09-25  H.J. Lu  <hongjiu.lu@intel.com>

* config/tc-i386.c (output_insn): Use i.tm.opcode_length to
check opcode length.

opcodes/

2007-09-25  H.J. Lu  <hongjiu.lu@intel.com>

* i386-gen.c (process_i386_opcodes): Process opcode_length.

* i386-opc.h (template): Add opcode_length.
* 386-opc.tbl: Likewise.
* i386-tbl.h: Regenerated.

* emultempl/spu_ovl.S: Add debug printf code.

* elf64-ppc.c (ppc_build_one_stub): Correct rel_hdr.sh_size.

daily update

*** empty log message ***

Use mmap to read from input files.

Add cache parameter to get_view.  Discard uncached views on unlock.
Fix bug this exposed in archive armap symbol name handling.

2007-09-25  Pierre Muller  <muller@ics.u-strasbg.fr>

* p-exp.y: Fix 12 ARI reported problems.
(name_not_typename): Fix 2 operator at end of line issues.
(yylex): Fix 3 operator at end of line issues.
Replace 7 DEPRECATED_STREQ macros using strcmp function.

* mips-tdep.c (mips_n32n64_return_value): Per N32/N64 ABI
rules return composite types in registers as appropriate.

* cg_print.c (sort_members): Include the final member on the list in the sort.

* config/tc-m68k.c (LONG_BRANCH_VIA_COND): New.
  (BRANCHBWPL, FRAG_VAR_SIZE): New.
  (md_relax_table): Add BRANCHBWPL entries.
  (m68k_ip): Choose BRANCHBWPL relaxation if necessary.
  (md_assemble): Use FRAG_VAR_SIZE.
  (md_convert_frag_1): Add BRANCHBWPL cases.
  (md_estimate_size_before_relaz): Likewise.
* gas/m68k/br-isaa.d: Dump relocs too.
* gas/m68k/br-isab.d: Likewise.
* gas/m68k/br-isac.d: Likewise.  Adjust for long branch relaxation.
Index: gas/config/tc-m68k.c

Fix spelling typo

bfd/
* elf32-spu.c (struct spu_link_hash_table): Add ovly_load_r_symndx.
(spu_elf_size_stubs): Count stub relocs.
(write_one_stub): Emit relocs on overlay call stubs.
ld/testsuite/
* ld-spu/ovl.d: Adjust for stub relocs.
* ld-spu/ovl2.d: Likewise.

* elf32-spu.c (struct spu_link_hash_table): Add "stubs".
(spu_elf_link_hash_table_create): Init new field.
(spu_elf_size_stubs): Store sorted stub syms in new htab field
rather than local var.
(spu_elf_build_stubs): Iterate over htab stubs rather than
hash traversal.
(struct stubarr): Delete.
(allocate_spuear_stubs, populate_stubs, write_one_stub): Adjust.

Rework File_read interface.  Get file size.  Use pread when
available.

Remove get_view_and_size.

Break out default pbytes argument to read and get_view routines,
adding new routines.

daily update

*** empty log message ***

gas/

2007-09-24  Carlos O'Donell  <carlos@codesourcery.com>

* config/tc-mips.c (s_align): Set max_alignment to 28.

gas/testsuite/

2007-09-24  Carlos O'Donell  <carlos@codesourcery.com>

* gas/mips/align.s, gas/mips/align.d: New test.
* gas/mips/mips.exp: Run it.

* symfile.h (struct symfile_segment_data): Doc fixes.
* symfile.c (symfile_map_offsets_to_segments): Doc fixes.
Assert that we were passed some loaded segment addresses,
and that sections' segment numbers are valid.
Simplify offset calculation.
* remote.c (get_offsets): Clarify selection of relocate-by-segment
strategy, and set num_segments correctly.  Delete redundant
assignments to do_sections.

* frame.c (get_prev_frame_1): Also check for PC in the same register.

* elf.c (assign_file_positions_for_load_sections): Trust
p_align_valid.
(copy_elf_program_header): Copy PT_NULL segments.

From Craig Silverstein: Fix bug when reading large script files.

* breakpoint.c (remove_sal): New.
(expand_line_sal_maybe): New.
(create_breakpoints): Call expand_line_sal_maybe.
(clear_command): Add comment.
(breakpoint_re_set_one): Call expand_line_sal_maybe.
* linespec.c (decode_indirect): Set explicit_pc to 1.
(decode_all_digits): Set explicit_line to 1.
(append_expanded_sal): New.
(expand_line_sal): New.
* linespec.h (expand_line_sal): Declare.
* symtab.c (init_sal): Initialize explicit_pc
and explicit_line.
* symtab.h (struct symtab_and_line): New fields
explicit_pc and explicit_line.

* elf32-spu.c (is_indirect_branch): New function.
(find_function_stack_adjust): End scan on hitting indirect branch.
(sum_stack): Cast %v arg to correct type.

daily update

*** empty log message ***

Fix typo in comment.

* infcall.c (call_function_by_hand): Handle language-specific
pass and return by reference.

* cp-abi.c (cp_pass_by_reference): New.
* cp-abi.h (cp_pass_by_reference): Declare.
(struct cp_abi_ops): Add pass_by_reference.
* gnu-v3-abi.c (gnuv3_pass_by_reference): New.
(init_gnuv3_ops): Set pass_by_reference.

* language.c (language_pass_by_reference): New.
(default_pass_by_reference): New.
(unknown_language_defn, auto_language_defn, local_language_defn): Add
default_pass_by_reference.
* langauge.h (struct language_defn): Add la_pass_by_reference.
(language_pass_by_reference, default_pass_by_reference): Declare.
* ada-lang.c (ada_language_defn): Add default_pass_by_reference.
* c-lang.c (c_language_defn, asm_language_defn)
(minimal_language_defn): Likewise.
(cplus_language_defn): Add cp_pass_by_reference.
* f-lang.c (f_language_defn): Add default_pass_by_reference.
* jv-lang.c (java_language_defn): Likewise.
* m2-lang.c (m2_language_defn): Likewise.
* objc-lang.c (objc_language_defn): Likewise.
* p-lang.c (pascal_language_defn): Likewise.
* scm-lang.c (scm_language_defn): Likewise

* gdb.cp/pass-by-ref.cc, gdb.cp/pass-by-ref.exp: New files.

* configure.ac: Do gdb.stabs tests by default on Cygwin and MinGW
targets.
* configure: Regenerate.

* breakpoint.h (enum enable_state): Remove the
bp_shlib_disabled enumerator.
(struct bp_location): New members shlib_disabled,
global_next, enabled and function_name.
Rename pending to condition_not_parsed.

* breakpoint.c (ALL_BP_LOCATIONS): Iterate over global_next.
(ALL_BP_LOCATIONS_SAFE): Likewise.
(breakpoint_enabled): Don't check for pending.
(condition_command): Free and update all locations of
a breakpoint.
(insert_bp_location): Adjust.
(software_breakpoint_inserted_here_p): Don't care
if breakpoint is enabled, as soon as it's inserted.
(print_it_typical): Print bpstat's location, not
bpstat's breakpoint's location.
(bpstat_stop_status): Iterate over all locations, not
all breakpoints.
(print_breakpoint_location): New.
(print_one_breakpoint): Renamed to
(print_one_breakpoint_location): ...this. Take
parameters to describe which location is being
printed. Modify code to properly print header
for several locations and individual locations.
(print_one_breakpoint): Print all locations.
(breakpoint_has_pc): New.
(describe_other_breakpoints): Use the above.
(check_duplicates): Renamed to...
(check_duplicates_for): .. this.
(check_duplicates): Use check_duplicates_for.
(allocate_bp_location): Adjust.
(set_raw_breakpoint_without_location): New,
extracted from set_raw_breakpoint.
(set_breakpoint_location_function): New.
(set_raw_breakpoint): Use
set_raw_breakpoint_without_location.
(make_breakpoint_permanent): Mark all locations
as inserted.
(disable_breakpoints_in_shlibs): Iterate over
locations.
(disable_breakpoints_in_unloaded_shlib): Likewise.
(re_enable_breakpoints_in_shlibs): Likewise.
(mention): Say "pending" when breakpoint has
zero locations.  If breakpoint has more than one
location, say so.
(add_location_to_breakpoint): New.
(create_breakpoint): Accept symtabs_and_lines, not
symtab_and_line. Pass extra sals to
add_location_to_breakpoint.
(create_breakpoints): Pass symtabs_and_lines to
create_breakpoints.
(break_command_1): Make pending breakpoints
have zero locations.
(do_captured_breakpoint): Remove wrong allocation.
(clear_command): Iterate over all locations.
(unlink_locations_from_global_list): Renamed
from unlink_location_from_global_list. Remove
all locations.
(delete_breakpoint): Remove all locations.
Iterate over all locations when deciding which
other location to re-enable.
(all_locations_are_pending): New.
(update_breakpoint_locations): Renamed from
update_breakpoint_location. Try to match old
and new locations using names of containing
functions.
(breakpoint_re_set_one): Adjust.
(find_location_by_number): New.
(disable_command): Allow disabling individual location.
(enable_command): Allow enabling individual location.
* breakpoint.c: Adjust all uses of breakpoint's
enable state to for bp_shlib_disabled change.

Add two file test.

Use special value when we refer a function symbol in some way other
than calling it.

Add static version of constructor test.

Add constructor test.

Check section index as well as object when looking for input section.

Avoid dereferencing map->end().

*** empty log message ***

daily update

Correct comment.

Rename t1 to basic_test, add static tests.

Add standalone test case.

Change YFLAGS to AM_YFLAGS.

Add licensing text to every source file.

Remove unnecessary elfcpp_config.h file.

Add bootstrap test.

It's OK to have a version if we have an existing symbol.

* breakpoint.c (do_restore_lang_radix_cleanup): Remove.
(resolve_pending_breakpoint): Remove.
(re_enable_breakpoints_in_shlibs): Remove.
(unlink_locations_from_global_list): New.
(update_breakpoint_locations): New.
(breakpoint_re_set_one): Don't bail out on pending breakpoints.
Use parse_condition and update_breakpoint_location to
reset breakpoint.  Ignore 'symbol not found' error from
decode_line_1.
(breakpoint_re_set): Don't emit newline before the
reason why breakpoint is not reset.
(do_enable_breakpoint): Don't specially process pending
breakpoints.
(free_bp_location): New.
(break_command_1): For pending breakpoints, initialize
all fields of a sal with zeroes.
* breakpoint.h (re_enable_breakpoints_in_shlibs): Remove.
* infcmd.c (post_create_inferior): Don't call
re_enable_breakpoints_in_shlibs.
* infrun.c (handle_inferior_event): Likewise.
* solib-irix.c (irix_solib_create_inferior_hook): Likewise.
* solib-osf.c (osf_solib_create_inferior_hook): Likewise.
* win32-nat.c (get_win32_debug_event): Likewise.

* breakpoint.c (create_breakpoint): Split from
create_breakpoints, implementing most of its logic.
Take just a single sal, single address string and
single condition.  Do not take parsed condition at
all.
(create_breakpoints): Just call create_breakpoint
for each sal.
(find_condition_and_thread): New.
(break_command_1): Use find_condition_and_thread.
Do not keep parsed conditions.
(do_captured_breakpoint): Don't convert
condition string to struct expression.

gdb/
* breakpoint.h (struct breakpoint): Move the cond
field to...
(struct bp_location): Here.
* breakpoint.c (condition_command, bpstat_stop_status)
(print_one_breakpoint, allocate_bp_location)
(solib_load_unload_1, create_fork_vfork_event_catchpoint)
(create_exec_event_catchpoint, create_breakpoints)
(break_command_1, watch_command_1, handle_gnu_v3_exceptions)
(create_ada_exception_breakpoint, set_breakpoint_sal)
(delete_breakpoint, breakpoint_re_set_one): Adjust.
* tui/tui-winsource.c (tui_update_breakpoint_info): Adjust.

Associate bp_stat with bp_location, not breakpoint.
* breakpoint.h (breakpoint_at): Change type
to bp_location*.
* breakpoint.c (bpstat_alloc): Take bp_location,
not breakpoint.
(bpstat_find_breakpoint): Look at bpstat's location's
owner, not at bpstat->breakpoint_at.
(bpstat_find_step_resume_breakpoint): Likewise.
(bpstat_num): Likewise.
(print_it_typical): Likewise.
(print_bp_stop_message): Likewise.
(watchpoint_check): Likewise.
(bpstat_what): Likewise.
(bpstat_get_triggered_catchpoints): Likewise.
(breakpoint_auto_delete): Likewise.
(delete_breakpoint): Likewise.
(bpstat_stop_status): Pass location, not breakpoint,
to bpstat_alloc.  Look at bpstat's location's
owner, not at bpstat->breakpoint_at.

From Andrew Chatham: List x86_64 ELF relocs.

We don't need a hash table mapping input locations to strings.

From Andrew Chatham: Make File_read::View::data_ a const pointer.

Define __start and __stop symbols.

Canonicalize name and version when working with special symbols.

Update.

Fix some errors in symbol placement.

* macrotab.h (new_macro_table): Document that removing information
from an obstack/bcache-managed macro table leaks memory.
* macrotab.c (macro_free, macro_bcache_free): Instead of asserting
that data is never freed in obstack/bcache-managed macro tables,
just leak the storage.
(macro_undef): If we're undefining a macro at exactly the same
source location that we defined it, simply remove the definition
altogether.

*** empty log message ***

daily update

* gdb.base/sepdebug.exp (test_different_dir): Append to pf_prefix.

2007-09-21  H.J. Lu  <hongjiu.lu@intel.com>

* i386-opc.h: Adjust whitespaces.

2007-09-21  Dave Brolley  <brolley@redhat.com>

        * mep-desc.c: Regenerated.

2007-09-21  H.J. Lu  <hongjiu.lu@intel.com>

* Makefile.am: Run "make dep-am".
* Makefile.in: Regenerated.

    * symfile.h (struct sym_fns): Add new field sym_read_linetable.
        * coffread.c, dbxread.c, elfread.c, mipsread.c somread.c:
        Adjust the struct sym_fns object accordingly by setting
        the new field to NULL.
        * xcoffread.c (aix_process_linenos): Make static.
        (xcoff_sym_fns): Set new field to aix_process_linenos.
        * buildsym.c (end_symtab): Replace call to PROCESS_LINENUMBER_HOOK
        by call to new the new sym_fns sym_read_linetable function.
        * config/powerpc/aix.mt (DEPRECATED_TM_FILE): Delete.
        * config/rs6000/tm-rs6000.h: Delete.

* Makefile.am (BFD32_LIBS): Add arange-set.lo.
  (BFD32_LIBS_CFILES): Add arange-set.c.
  (SOURCE_HFILES): Add arange-set.h
  (dwarf2.lo): Add dependency upon arange-set.h.
  (arange-set.lo): New target.
* Makefile.in: Regenerate.
* arange-set.c: New file.
* arange-set.h: New file.
* dwarf2.c: Include arange-set.h.
  (struct dwarf2_debug) Add new fields comp_unit_count and comp_unit_arange_set.
  (struct comp_unit) Replace field arange with a new field arange_set.
  (dwarf2_arange_set_allocate, dwarf2_arange_set_deallocate,
  (dwarf2_combine_arange_value, dwarf2_arange_set_new,
  (dwarf2_arange_set_with_value_new, dwarf2_comp_unit_arange_add): New
  functions to utilize arange set in dwarf2.c.
  (arange_add): Formatting change for a line longer than 80 characters.
  (decode_line_info): Replace call target arange_add with
  (dwarf2_comp_unit_arange_add.
  (read_rangelist_insert_arange_list,
  (read_rangelist_comp_unit_arange_add): New functions used as callbacks
  for read_rangelist.
  (read_rangelist): Change interface to accept a callback and data to
  allow caller to select the action peformed on a new range list read.
  (scan_unit_for_symbols): Use new interface of read_rangelist.
  (parse_comp_unit): Create an arange set for each new comp unit.  Use new
  interface of read_rangelist.  Replace call to arange_add with that to
  dwarf2_comp_unit_arange_add.
  (comp_unit_contains_address): Replace sequential search with a call to
  arange_set_lookup_address, which can handles large set efficiently.
  (stash_copy_local_aranges, stash_maybe_enable_arange_set,
  (stash_find_nearest_line_fast): New functions maintaining and using a
  valued global arange set for all compilation units to speed up
  bfd_dwarf2_find_nearest_line.
  (find_line): Use global arange set.  Replace sequential search over all
  compilation units with a call to stash_find_nearest_line_fast.  Add
  book keeping to count number of compilation units.  Replace empty
  arange list test with a call to arange_set_empty_p.