2010-02-22  Pedro Alves  <pedro@codesourcery.com>

PR9605

gdb/
* breakpoint.c (insert_bp_location): If inserting the read
watchpoint failed, fallback to an access watchpoint.
(bpstat_check_watchpoint): Stop for read watchpoint triggers even
if the value changed, if not watching the same memory for writes.
(watchpoint_locations_match): Add comment.
(update_global_location_list): Copy the location's watchpoint type.
* i386-nat.c (i386_length_and_rw_bits): It's an internal error to
handle read watchpoints here.
(i386_insert_watchpoint): Read watchpoints aren't supported.
* remote.c (remote_insert_watchpoint): Return 1 for unsupported
packets.
* target.h (target_insert_watchpoint): Update description.

2010-02-22  Pedro Alves  <pedro@codesourcery.com>

PR9605

gdbserver/
* i386-low.c (i386_length_and_rw_bits): Throw a fatal error if
handing a read watchpoint.
(i386_low_insert_watchpoint): Read watchpoints aren't supported.

2010-02-22  Pedro Alves  <pedro@codesourcery.com>

PR9605

gdb/testsuite/
* gdb.base/watch-read.c, gdb.base/watch-read.exp: New files.

daily update

2010-02-22  Doug Kwan  <dougkwan@google.com>

* gold-threads.h (Once::~Once): Explicitly define virtual destructor.
* icf.cc (get_section_contents): Cast snprintf arguments to long long
types to avoid warnings due to different uint64_t implementations
on different hosts.

PR ld/11304
* ldlang.c (exp_init_os): Delete forward declaration.
(init_os): Don't check for bfd_section already created and don't
init addr_tree and load_base expressions here.
(map_input_to_output_sections): Only map input to output sections
and set constraints here, and as an exception, create output
sections which have their address set.  Move all the other code to..
(create_other_output_sections): ..here.  New function.  Handle init
of addr_tree and load_base here too.
(lang_process): Call create_other_output_sections.

PR 9861
* gas/config/tc-arm.c (CPU_DEFAULT): Do not define based upon build
compiler's predefines.

2010-02-21  Doug Kwan  <dougkwan@google.com>

* arm.cc (Arm_relocate_functions::arm_branch_common): Fix bug in
handling of the maximum backward branch offset.
      (Arm_relocate_functions::thumb_branch_common): Ditto.
* testsuite/Makefile.am (check_SCRIPTS): Add arm_branch_in_range.sh.
(check_DATA): Add arm_bl_in_range.stdout, arm_bl_out_of_range.stdout
thumb_bl_in_range.stdout, thumb_bl_out_of_range.stdout,
thumb2_bl_in_range.stdout and thumb2_bl_out_of_range.stdout.
(arm_bl_in_range.stdout, arm_bl_in_range, arm_bl_in_range.o,
arm_bl_out_of_range.stdout, arm_bl_out_of_range,
arm_bl_out_of_range.o, thumb_bl_in_range.stdout, thumb_bl_in_range,
thumb_bl_in_range.o, thumb_bl_out_of_range.stdout,
thumb_bl_out_of_range thumb_bl_out_of_range.o,
thumb2_bl_in_range.stdout, thumb2_bl_in_range, thumb2_bl_in_range.o
thumb2_bl_out_of_range.stdout, thumb2_bl_out_of_range,
thumb2_bl_out_of_range.o): New rules.
(MOSTLYCLEANFILES): Add arm_bl_in_range, arm_bl_out_of_range,
thumb_bl_in_range, thumb_bl_out_of_range, thumb2_bl_in_range and
thumb2_bl_out_of_range
* testsuite/Makefile.in: Regenerate.
* testsuite/arm_bl_in_range.s: New file.
* testsuite/arm_bl_out_of_range.s: Ditto.
* testsuite/arm_branch_in_range.sh: Ditto.
* testsuite/arm_branch_range.t: Ditto.
* testsuite/thumb2_branch_range.t: Ditto.
* testsuite/thumb_bl_in_range.s: Ditto.
* testsuite/thumb_bl_out_of_range.s: Ditto.
* testsuite/thumb_branch_range.t: Ditto.

*** empty log message ***

daily update

* reloc.c (bfd_check_overflow): When forming addrmask, shift
fieldmask left by rightshift.
(_bfd_relocate_contents): Likewise.  Use rightshift addrmask in all
overflow checks.

2010-02-20  Sriraman Tallam  <tmsriram@google.com>

* gc.h (gc_process_relocs): Change vectors to point to the new list.
Add reloc offset information.
* icf.cc (get_section_contents): Change iterators to point to the new
vectors. Add reloc offset information to the contents.
* icf.h (Icf::Sections_reachable_info): New typedef.
(Icf::Sections_reachable_list): New typedef.
(Icf::Offset_info): New typedef.
(Icf::Reloc_info): New struct typedef.
(Icf::Reloc_info_list): New typedef.
(Icf::symbol_reloc_list): Delete method.
(Icf::addend_reloc_list): Delete method.
(Icf::section_reloc_list): Delete method.
(Icf::reloc_info_list): New method.
(Icf::reloc_info_list_): New member.

*** empty log message ***

daily update

Don't check STT_GNU_IFUNC on large common symbol.

2010-02-20  H.J. Lu  <hongjiu.lu@intel.com>

* elf64-x86-64.c (elf64_x86_64_add_symbol_hook): Don't check
STT_GNU_IFUNC on large common symbol.

*** empty log message ***

daily update

2010-02-18  Doug Kwan  <dougkwan@google.com>

* arm-reloc.def: Mark R_ARM_TLS_GD32, R_ARM_TLS_LDM32,
R_ARM_TLS_LDO32, R_ARM_TLS_IE32 and R_ARM_TLS_LE32 are implemented.
* arm.cc (Arm_relocation_functions): New forward declaration.
(Target_arm::Target_arm): Initialize new data members
got_mod_index_offset_ and tls_base_symbol_defined_.
(Target_arm::Relocate::relocate_tls): New method.
(Target_arm::optimize_tls_reloc, Target_arm::define_tls_base_symbol,
 Target_arm::got_mod_index_entry, Target_arm::rel_tls_desc_section):
New methods.
    (Target_arm::Got_type): Add GOT_TYPE_TLS_NOFFSET, GOT_TYPE_OFFSET,
GOT_TYPE_TLS_PAIR and GOT_TYPE_TLS_DESC.
(Target_arm::got_mod_index_offset_,
Target_arm::tls_base_symbol_defined_): New data members.
(Target_arm::Scan::local, Target::Scan::global,
Target_arm::Relocate::relocate): Handle 32-bit initial TLS
relocations.

* p-typeprint.c (pascal_type_print_varspec_prefix): Update.
* m2-typeprint.c (m2_print_type): Update.
* gdbtypes.c (recursive_dump_type): Update.
(copy_type_recursive): Update.
* c-typeprint.c (c_type_print_varspec_prefix): Update.
(c_type_print_base): Update.
* gdbtypes.h (TYPE_CODE_TEMPLATE, TYPE_CODE_TEMPLATE_ARG):
Remove.
(struct cplus_struct_type) <ntemplate_args>: Remove.
<struct template_arg>: Remove.
<is_dynamic>: Move earlier.
(TYPE_TEMPLATE_ARGS): Remove.
(TYPE_NTEMPLATE_ARGS): Remove.
(TYPE_TEMPLATE_ARG): Remove.

gdb
PR c++/8693, PR c++/9496:
* cp-namespace.c (cp_lookup_nested_type): Handle TYPE_CODE_UNION.
* c-exp.y (lex_one_token): Rename from yylex.  Don't call
write_dollar_variable.  Don't try to classify NAME tokens.
(token_and_value): New type.
(token_fifo, popping, name_obstack): New globals.
(classify_name): New function.
(classify_inner_name): Likewise.
(yylex): Likewise.
(VARIABLE): Now has type sval.
(exp : VARIABLE): Call write_dollar_variable.
(qualified_name): Use TYPENAME, not typebase.  Add production for
multiple "::" instances.
(variable): Use name_not_typename.
(qualified_type): Remove.
(typebase): Update.
gdb/testsuite
PR c++/8693, PR c++/9496:
* gdb.cp/namespace.exp: Remove some setup_kfail calls.  Added
regression tests.

* gdbint.texinfo (Getting Started): Fix @node.
(Debugging GDB): Likewise.

gdb/testsuite/
Fix compatibility with m68k as.
* gdb.dwarf2/member-ptr-forwardref.S: Use .data section.  Use .2byte.
Use only /* comments */.

testsuite/
* configure.ac: Add gdb.multi/Makefile to AC_OUTPUT.
* configure: Regenerate.

gdb/
* symfile.c (addr_info_make_relative): Extend comment.  Move SECT to
a more inner block.  Initialize ADDR by LOWER_OFFSET only if it was
found by bfd_get_section_by_name.
* symfile.h (struct section_addr_info) <sectindex>: New comment.

Don't set ELFOSABI_LINUX in dynamic ifunc-using executable.

bfd/

2010-02-18  H.J. Lu  <hongjiu.lu@intel.com>

* elf32-i386.c (elf_i386_add_symbol_hook): Don't set
has_ifunc_symbols if the symbol comes from a shared library.
* elf32-ppc.c (ppc_elf_add_symbol_hook): Likewise.
* elf32-sparc.c (elf32_sparc_add_symbol_hook): Likewise.
* elf64-ppc.c (ppc64_elf_add_symbol_hook): Likewise.
* elf64-sparc.c (elf64_sparc_add_symbol_hook): Likewise.
* elf64-x86-64.c (elf64_x86_64_add_symbol_hook): Likewise.

ld/testsuite/

2010-02-18  H.J. Lu  <hongjiu.lu@intel.com>

* ld-ifunc/ifunc.exp: Expect System V OSABI in dynamic
ifunc-using executable.

* configure.tgt: Whiltespace.  Sort moxie entry.

* Makefile.am (eelf32_i960.c): Depend on ELF_GEN_DEPS, not ELF_DEPS.
* Makefile.in: Regenerate.

2010-02-18  Doug Kwan  <dougkwan@google.com>

* arm.cc (Arm_relobj::find_linked_text_section): New method.
(Arm_relobj::make_exidx_input_section): Pass section index of linked
text section as a parameter becuase some broken tools may not set
the link in section header.
(Target_arm::has_got_section): New method.
(Target_arm::scan_section_for_cortex_a8_stubs): Treat an input section
without any mapping symbol as data only.  Remove warning.
(Arm_relobj::do_read_synbols): If an EXIDX input section has no
link in its section header, try to discover the link by inspecting the
REL31 relocation at the beginning of the section.
(Target_arm::Scan::check_non_pic): Report name of offending relocation
in error message.
(Target_arm::Scan::global): Treat any reference to the symbol
_GLOBAL_OFFSET_TABLE_ as a GOT access.

bfd/
* elf.c (_bfd_elf_fixup_group_sections): New function, split out from..
(_bfd_elf_copy_private_header_data): ..here.
* elflink.c (_bfd_elf_size_group_sections): New function.
(bfd_elf_size_dynamic_sections): Call it.
* elf-bfd.h (_bfd_elf_size_group_sections): Declare.
(_bfd_elf_fixup_group_sections): Declare.
ld/
* ldlang.c (unique_section_p): Add os param.  Allow group
sections to match /DISCARD/.  Update all callers.
* emultempl/genelf.em (gld${EMULATION_NAME}_before_allocation): New.
(LDEMUL_BEFORE_ALLOCATION): Define.
ld/testsuite/
* ld-elf/group.ld: Discard .dropme sections.
* ld-elf/group10.d, * ld-elf/group10.s: New test.

* readelf.c (get_group_flags): Return empty string when flags zero.
Add space in other returned values.
(process_section_groups): Adjust format string.

    * NEWS: Add new "[...] since 7.1" section.  Rename the "[...] since
        7.0 section" into "Changes in 7.1".

Record GDB 7.1 branch creation. Bump version number to 7.1.50.20100219-cvs.

*** empty log message ***

daily update

2010-02-18  Harald Koenig  <H.Koenig@science-computing.de>

* mi/mi-main.c (mi_cmd_exec_jump): Drop unneeded `return'.
* symfile.c (symfile_map_offsets_to_segments): Fix assertion.

   * ld-arm/attr-merge-6.attr: Add new test.  Missed off last commit.

* NEWS: Add Python API Improvements section.

* NEWS: Correct typo.

* gdb.python/py-type.exp: Check for Python support.

* bfd/elf32-arm.c (elf32_arm_merge_eabi_attributes): Add support for
merging Tag_DIV_use, Tag_MPextension_use, and
Tag_MPextension_use_legacy tags.
* binutils/readelf.c (arm_attr_tag_Advanced_SIMD_arch): Add
description of newly permitted attribute values.
(arm_attr_tag_Virtualization_use): Likewise.
(arm_attr_tag_DIV_use): Add description of new attribute.
(arm_attr_tag_MPextension_use_legacy): Likewise.
* gas/config/tc-arm.c (arm_convert_symbolic_attribute):
Add Tag_DIV_use.
* gas/doc/c-arm.texi: Likewise.
* gas/testsuite/gas/arm/attr-order.d: Fix test for new names for
attribute values.
* include/elf/arm.h (Tag_MPextension_use): Renumber.
(Tag_DIV_use): Add.
(Tag_MPextension_use_legacy): Likewise.
* ld/testsuite/ld-arm/attr-merge-3.attr: Fix test for new attribute
values.
* ld/testsuite/ld-arm/attr-merge-3b.s: Likewise.
* ld/testsuite/ld-arm/attr-merge-unknown-1.d: Fix test now that 42
is a recognised attribute ID.
* ld/testsuite/ld-arm/attr-merge-unknown-1.s: Likewise.
* ld/testsuite/ld-arm/attr-merge-6.attr: New test.
* ld/testsuite/ld-arm/attr-merge-6a.s: Likewise.
* ld/testsuite/ld-arm/attr-merge-6b.s: Likewise.
* ld/testsuite/ld-arm/attr-merge-7.attr: Likewise.
* ld/testsuite/ld-arm/attr-merge-7a.s: Likewise.
* ld/testsuite/ld-arm/attr-merge-7b.s: Likewise.
* ld/testsuite/ld-arm/arm-elf.exp: Run the new tests.

* binutils-all/group-5.s, * binutils-all/group-5.d: New test.
* binutils-all/objcopy.exp: Run it.

* elf.c (bfd_elf_set_group_contents): Revert accidental 2009-01-15
commit.  Don't write zeros for removed group members.
(_bfd_elf_copy_private_header_data): Adjust size of group section
when group members are removed by objcopy.

*** empty log message ***

* lib/gdb.exp (build_id_debug_filename_get): Don't assume new
`regsub' syntax available.

daily update

* gdb.base/shmain.c (main): Remove printf call.
* gdb.base/sizeof.c (main): Cast return of sizeof to int.
* gdb.base/unload.c (main): Make format of fprintf a string
literal.  Add missing endlines to prints to stderr.
* gdb.base/watchpoint-solib.c (open_shlib): Ditto.

gdb
* objfiles.c (gdb_bfd_ref): Handle abfd==NULL.
gdb/testsuite
* gdb.java/jprint.java (jprint.props): New field.
* gdb.java/jprint.exp (set_lang_java): Add regression test.

Use tab, not spaces.

    * gdb.base/charset.exp: Don't assume new `regsub' syntax
available.

gdb/
* symfile.c (build_section_addr_info_from_objfile): Include sections
only if they are SEC_ALLOC or SEC_LOAD.

Use CORE_ADDR instead of ULONGEST on address.

2010-02-17  H.J. Lu  <hongjiu.lu@intel.com>

PR shlibs/11293
* solib-svr4.c (enable_break): Check size of CORE_ADDR instead
of ULONGEST for address size.

* NEWS: Add C++ improvements section.

* python/python-internal.h [!WITH_THREAD] (PyGILState_Release,
PyThreadState_Swap): Avoid "statement with no effect" warning.

gdb/
* solib-svr4.c (enable_break <target_auxv_search>): New variable
addr_bit.  Adjust LOAD_ADDR sign for cross-arch inferiors.

    * Makefile.tpl: Use "-exec rm {}" rather than "-delete" to delete
        the config.cache files found by the find command.

2010-02-17  Tristan Gingold  <gingold@adacore.com>
    Petr Hluzí<petr.hluzin@gmail.com>

* avr-tdep.c (avr_scan_prologue): Convert an if statement to a
gdb_assert.  Fix info->size for SIG prologue.

2010-02-17  Tristan Gingold  <gingold@adacore.com>

* dmt.h, dst.h, eeom.h, egps.h, egsd.h, egst.h, egsy.h: New Files.
* eiaf.h, eicp.h, eiha.h, eihd.h, eihi.h, eihs.h, eihvn.h: Ditto.
* eisd.h, emh.h, eobjrec.h, esdf.h, esrf.h, etir.h, shl.h: Ditto.

    PR 11238
        * Makefile.tpl (local-distclean): Also remove config.cache files in
        sub-directories as there may not be Makefiles present in the
        sub-directories.
        * Makefile.in: Regenerate.
        * configure.ac: Revert previous delta.
        * configure: Regenerate.

*** empty log message ***

daily update

gdb/testsuite/
* gdb.xml/tdesc-arch.exp, gdb.xml/tdesc-regs.exp: Rewrite file
creation to support remote host testing.

gdb/testsuite/
* gdb.base/valgrind-db-attach.exp: Use unsupported instead of xfail.
Recognize "command not found".

gdb/testsuite/
* gdb.arch/thumb2-it.exp (test_it_break): Handle hardware
single-stepping.

gdb/
* infcmd.c (show_inferior_tty_command): Check for NULL.
Correct output message.

* gdb.python/py-value.exp (test_value_in_inferior): Skip arg0 test
if arguments are not supported.

gdb/testsuite/
* gdb.cp/overload.exp: Allow foo::overload1arg's "this" pointer to
be const or non-const.

gdb/testsuite/
* gdb.mi/mi-break.exp (test_breakpoint_commands): Use
mi_send_resuming_command to send -exec-continue.

gdb/
* linespec.c (decode_line_1): Handle FILE:FUNCTION even if
FUNCTION contains parentheses.  Improve removal of a trailing
single quote.

gdb/testsuite/
* gdb.base/list.exp (test_list_filename_and_function): Add test
with single quotes.
* gdb.cp/overload.cc (intToChar): Rewrite onto one line for easy
matching.
* gdb.cp/overload.exp: Add tests with filename, function, and quotes.
Add KFAIL'd tests for PR gdb/11289.

gdb/
* gcore.c (do_bfd_delete_cleanup): New function.
(gcore_command): Use it.  Discard the cleanup after success.
(gcore_copy_callback): Delete dead code.

gdb/
* symfile.c (addr_info_make_relative): Always use
find_lowest_section.

gdb/testsuite/
* gdb.cp/cpcompletion.exp: Specify source file name explicitly.

gdb/testsuite/
* gdb.base/comp-dir/subdir/dummy.txt: New file.
* gdb.base/completion.exp: Use comp-dir/subdir instead of creating
a temporary directory.

gdb/testsuite/
* gdb.base/charset.exp: Use a single regular expression to match
show host-charset and show target-charset output.

2010-02-15  Matthew Gretton-Dann <matthew.gretton-dann@arm.com>

* ld-arm/jump-reloc-veneers-long.d: Correct testcase for
  arm-none-eabi target.
* ld-arm/jump-reloc-veneers-short1.d: Likewise
* ld-arm/jump-reloc-veneers-short2.d: Likewise

2010-02-16  Sami Wagiaalla <swagiaal@redhat.com>

* NEWS: Added entry for namespace fixes.

*** empty log message ***

daily update

* dwarf2read.c (guess_structure_name): Allocate name on the
objfile obstack.

* c-typeprint.c (c_type_print_base): Reverse order of test.

bfd/ChangeLog:

PR binutils/11280
* configure.host (*-*-solaris2.11):  Add host define to select
valid default code page for windres/windmc on solaris.

gdb/
* solib-svr4.c (LM_ADDR_CHECK): New variable minpagesize.  Optionally
initialize it from ELF BFD.  Extend the prelink condition by it.

gdb/
* defs.h (parse_pid_to_attach): New.
* utils.c (parse_pid_to_attach): New.
* darwin-nat.c (darwin_attach): Replace ARGS parsing by parse_pid.
* gnu-nat.c (gnu_attach): Likewise.
* nto-procfs.c (procfs_attach): Likewise.
* procfs.c (procfs_attach): Likewise.
* windows-nat.c (windows_attach): Likewise.
* inf-ptrace.c (inf_ptrace_attach): Likewise.  Remove variable dummy.
* inf-ttrace.c (inf_ttrace_attach): Likewise.
* remote.c (extended_remote_attach_1): Likewise.  New comment on getpid
check.

gdb/testsuite/
* gdb.base/attach.exp (attach to nonsense is prohibited): Make the
"Illegal process-id" expect string more exact.
(attach to digits-starting nonsense is prohibited): New.

    PR 11238
        * configure.ac: Delete config.cache files in sub-directories when
        deleting Makefiles.
        * configure: Regenerate.

Sync from gcc mainline.

Updated Vietnamese translation.

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daily update

* ppc-instructions: Fix missing assignment in last change.

    * configure.in: Check if the host has getopt.h.
        * configure: Regenerate.
        * config.in: Regenerate.
        * main.c: Include config.h.
        Use HAVE_STDLIB_H, HAVE_UNISTD_H, HAVE_GETOPT_H.
        Include getopt.h in case HAVE_GETOPT_H is defined.

  * interp.c: Don't include sysdep.h.
  Include stdio.h and errno.h.
  Include string.h strings.h stdlib.h sys/stat.h if present.

* MAINTAINERS: Add myself for write after approval privileges.

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daily update

gdb/
* solib-svr4.c: (LM_ADDR_CHECK): Move variable align to a more inner
block.

gdb/
* solib-svr4.c: (LM_ADDR_CHECK): Print successful prelink adjustment
only if INFO_VERBOSE.

gdb/testsuite/
* gdb.base/prelink.exp (set verbose on): New.

Document new gdb_test_timeout global variable.

        * gdbint.texinfo (Testsuite): New section "Testsuite Configuration",
        documenting the gdb_test_timeout variable.

regenerate cgen-based files

* lm32-opinst.c: Regenerate.

2010-02-12  Sriraman Tallam  <tmsriram@google.com>

* arm.cc (Scan::local_reloc_may_be_function_pointer): New function.
(Scan::global_reloc_may_be_function_pointer): New function.
* sparc.cc (Scan::local_reloc_may_be_function_pointer): New function.
(Scan::global_reloc_may_be_function_pointer): New function.
* powerpc.cc (Scan::local_reloc_may_be_function_pointer): New function.
(Scan::global_reloc_may_be_function_pointer): New function.
* i386.cc (Scan::local_reloc_may_be_function_pointer): New function.
(Scan::global_reloc_may_be_function_pointer): New function.
* x86_64.cc (Scan::local_reloc_may_be_function_pointer): New function.
(Scan::global_reloc_may_be_function_pointer): New function.
(Scan::possible_function_pointer_reloc): New function.
(Target_x86_64::can_check_for_function_pointers): New function.
* gc.h (gc_process_relocs): Scan relocation types to determine if
function pointers were taken for targets that support it.
* icf.cc (Icf::find_identical_sections): Include functions for
folding in safe ICF whose pointer is not taken.
* icf.h (Secn_fptr_taken_set): New typedef.
(fptr_section_id_): New member.
(section_has_function_pointers): New function.
(set_section_has_function_pointers): New function.
(check_section_for_function_pointers): New function.
* options.h: Fix comment for safe ICF option.
* target.h (can_check_for_function_pointers): New function.
* testsuite/Makefile.am: Add icf_safe_so_test test case.
Modify icf_safe_test for X86-64.
* testsuite/Makefile.in: Regenerate.
* testsuite/icf_safe_so_test.cc: New file.
* testsuite/icf_safe_so_test.sh: New file.
* testsuite/icf_safe_test.cc (kept_func_3): New function.
(main): Change to take pointer to function kept_func_3.
* testsuite/icf_safe_test.sh (arch_specific_safe_fold): Check if safe
folding is done correctly for X86-64.

* linux-low.c (linux_supports_tracefork_flag): Document.
(linux_look_up_symbols): Add comment.

* output.h (Output_reloc<SHT_REL>::Output_reloc): Add
is_symbolless parameter.
(Output_reloc<SHT_REL>::is_symbolless): New.
(Output_reloc<SHT_REL>::is_symbolless_): New.
(Output_reloc<SHT_REL>::type_): Decrease to 29 bits.
(Output_reloc<SHT_RELA>::Output_reloc): Add is_symbolless parameter.
(Output_reloc<SHT_RELA>::is_symbolless): New.
(Output_data_reloc::add_global): Handle is_symbolless.
(Output_data_reloc::add_global_relative): Likewise.
(Output_data_reloc::add_local): Likewise.
(Output_data_reloc::add_local_relative): Likewise.
(Output_data_reloc::add_symbolless_global_addend): New.
(Output_data_reloc::add_symbolless_local_addend): New.
* output.cc (Output_reloc<SHT_REL>::Output_reloc): Handle
is_symbolless.
(Output_reloc::set_needs_dynsym_index): Test ->is_symbolless_
instead of ->is_relative_
(Output_reloc::write): Likewise.
(Output_reloc::get_symbol_index): Return 0 when ->is_symbolless_
(Output_reloc::write_rel): Simplify.

* sparc.cc (Target_sparc::Scan::local): Use
->add_symbolless_local_addend as needed.
(Target_sparc::Scan::global): Use ->add_symbolless_global_addend as
needed.  Also, emit appropriate unaligned vs. aligned dynamic reloc
based upon relocation offset.

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