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daily update

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daily update

* ui-file.h (tee_file_new): Add extern modifier in header declaration.

    * gdbint.texinfo (Function prototypes): Require use of "extern"
        modifier for function prototypes in headers.

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daily update

Check R_X86_64_standard for unrecognized relocation

* elf64-x86-64.c (elf_x86_64_relocate_section): Check
R_X86_64_standard instead of R_X86_64_max for unrecognized
relocation.

Properly adjust h->plt.refcount

bfd/

PR ld/14980
* elf32-i386.c (elf_i386_adjust_dynamic_symbol): Properly
adjust h->plt.refcount.
* elf64-x86-64.c (elf_x86_64_adjust_dynamic_symbol): Likewise.

ld/testsuite/

PR ld/14980
* ld-ifunc/ifunc-14c.s: New file.
* ld-ifunc/ifunc-14e-i386.d: Likewise.
* ld-ifunc/ifunc-14e-x86-64.d: Likewise.
* ld-ifunc/ifunc-14f-i386.d: Likewise.
* ld-ifunc/ifunc-14f-x86-64.d: Likewise.

* layout.cc (Layout::special_ordering_of_input_section): New
function.
(Layout::layout): If input section requires special ordering, must
sort input sections.
(Layout::make_output_section): May sort .text input sections.
(Layout::is_section_name_prefix_grouped): Remove.
* layout.h (class Layout): Declare
special_ordering_of_input_section.  Don't declare
is_section_name_prefix_grouped.
* output.cc (Output_section::add_input_section): Revert last
change.
(Output_section::Input_section_sort::match_file_name): Don't crash
if called on output section data.
(Output_section::Input_section_sort_compare): Sort based on
special ordering.
(Output_section::Input_section_sort_section_order_index_compare):
Revert last patch.
(Output_section::sort_attached_input_sections): Likewise.

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daily update

* Makefile.def (install-target-libgo): Depend on
install-target-libatomic. Merged from GCC repo.
* Makefile.in: Regenerate.

Fix commit date in previous commit.

2012-12-20  Greta Yorsh  <Greta.Yorsh@arm.com>

* config/tc-arm.c (rfefa,rfeea,rfeed): Fix encoding.
(rfe,srs,srsea,srsfa,srsed,srsfd): Add missing mnemonics.

* gas/arm/srs-t2.s: Add tests for missing srs modes.
* gas/arm/srs-t2.l: Update expected output.
* gas/arm/srs-arm.s: Add tests for missing srs modes.
* gas/arm/srs-arm.l: Update expected output.
* gas/arm/archv6.s: Add tests for missing rfe modes.
* gas/arm/archv6.d: Update expected output.

* serial.c (deprecated_serial_fd): Remove.
* serial.h (deprecated_serial_fd): Remove.

* gdb.base/maint.exp: Handle testing with .gdb_index.

Revert GPL version change in sim/bfin/aclocal.m4

sim/bfin/ChangeLog:

        * aclocal.m4: Revert the previous change changing
        the license from GPL v2 or later to GPL v3 or later
        (this file was generated).

Revert GPL version change in linux-fixed-code.s.

sim/bfin/ChangeLog:

* linux-fixed-code.s: Revert the previous change changing
the license from GPL v2 or later to GPL v3 or later.

gdb/
2012-12-20  Yao Qi  <yao@codesourcery.com>

* maint.c (_initialize_maint_cmds): Move code ...
* symmisc.c (_initialize_symmisc): ... to here.
(maintenance_print_msymbols): Make it static.
(maintenance_print_objfiles): Likewise.
(maintenance_print_symbols): Likewise.
(maintenance_info_symtabs): Likewise.
* symtab.h (maintenance_print_msymbols): Remove declaration.
(maintenance_print_objfiles, maintenance_print_symbols): Likewise.
(maintenance_info_symtabs): Likewise.

gdb/
2012-12-20  Yao Qi  <yao@codesourcery.com>

* maint.c (_initialize_maint_cmds): Move code to ...
* psymtab.c (_initialize_psymtab): ... here.  New.
Include "gdbcmd.h".
(maintenance_print_psymbols): Make it static.
(maintenance_info_psymtabs, maintenance_check_symtabs): Likewise.
* symtab.h (maintenance_print_psymbols): Remove declaration.
(maintenance_check_symtabs, maintenance_info_psymtabs): Likewise.

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daily update

* MAINTAINERS: Add myself to write-after-approval maintainers.

2012-12-19  Andreas Tobler  <andreast@neon.andreas.nets>

        * mips-tdep.c (micromips_deal_with_atomic_sequence): Initialize
        branch_bp to keep gcc happy.

Fix indentation in the last checkin

Fix and use elf_append_rel

* elf32-i386.c (elf_i386_relocate_section): Replace
bfd_elf32_swap_reloc_out with elf_append_rel.
(elf_i386_finish_dynamic_symbol): Likewise.

* elflink.c (elf_append_rel): Call swap_reloc_out instead of
swap_reloca_out.

Reindent elf_i386_finish_dynamic_symbol

* elf32-i386.c (elf_i386_finish_dynamic_symbol): Reindent.

Change copyright from Cavium to FSF.

gdb/testsuite/ChangeLog:

        * gdb.arch/mips-octeon-bbit.exp: Fix copyright header from
        Cavium to FSF.

Add copyright header to stubs/buildvms.com.

gdb/stubs/ChangeLog:

        * buildvms.com: Add copyright header.

Fix copyright years in gdbarch.h and gdbarch.c.

copyright.py was updating gdbarch.sh' copyright years, but not
the function that genarates the copyright headers for gdbarch.[hc].

This patch makes the following changes:
  - fixes gdbarch.sh and regenerates gdbarch.[hc]

  - Modify copyright.py to remind the user to update gdbarch.sh
    by hand.  This should also remind the user to rerun the script
    and update gdbarch.[hc] - see next point;

  - Allow copyright.py to update gdbarch.[hc]'c copyright years,
    even though these are generated files;  This should free
    the user from having to update gdbarch.[hc] himself;

gdb/ChangeLog:

        * gdbarch.sh (copyright): Update copyright years.
        * gdbarch.h, gdbarch.c: Regenerate.
        * copyright.py (EXCLUDE_LIST): Remove gdbarch.h and gdbarch.c.
        (MULTIPLE_COPYRIGHT_HEADERS): Add 'gdb/gdbarch.sh'.

update copyright notices in various GDB files.

Update some files in GDB that were accidently left with a GPL v2
copyright header.

Update some files where the copyright notice still provides the
old contact info, using the approach for providing the FSF's contact
info.

gdb/ChangeLog:

        * acinclude.m4: Update contact info in copyright notice.

gdb/doc/ChangeLog:

        * refcard.tex: Update copyright notice to GPL v3 or later.
        Update contact info.

gdb/testsuite/ChangeLog:

        * dg-extract-results.sh: Update contact info in copyright notice.
        * gdb.arch/mips-octeon-bbit.exp: Update copyright notice to
        GPL v3 or later.  Update contact info.
        * gdb.fortran/logical.f90, gdb.threads/watchpoint-fork-child.c,
        gdb.threads/watchpoint-fork-mt.c,
        gdb.threads/watchpoint-fork-parent.c,
        gdb.threads/watchpoint-fork-st.c,
        gdb.threads/watchpoint-fork.h: Likewise.

gdb/
2012-12-19  Yao Qi  <yao@codesourcery.com>

* maint.c (maintenance_print_statistics): Make it static.
* symtab.h (maintenance_print_statistics): Remove declaration.

Update sim's COPYING files.

sim/arm/ChangeLog:

* COPYING: Update to GPL version 3.

sim/ppc/ChangeLog:

* COPYING: Update to GPL version 3.

[sim] Update old contact info in GPL license notices

sim/ChangeLog:

        Update old contact info in GPL license notices.

Update sim copyright headers from GPLv2-or-later to GPLv3-or-later.

gdb/sim/ChangeLog:

        Update the non-FSF-copyrighted files in sim to GPLv3 or later.

NEWS: Announce ppc-lynx178 support.

gdb/ChangeLog:

        * NEWS: Add entry announcing ppc-lynx178 support.

Revert "Import gnulib's errno module."

There are some compatibility concerns with libiconv to be
discussed first.

gdb/ChangeLog:

        Revert the following change:
        * gnulib/update-gnulib.sh (IMPORTED_GNULIB_MODULES): Add errno.
        * gnulib/import/errno.in.h: Import.
        * gnulib/import/m4/errno_h.m4: Import.
        * gnulib/aclocal.m4: Regenerate.
        * gnulib/configure: Regenerate.
        * gnulib/import/Makefile.am: Update.
        * gnulib/import/Makefile.in: Update.
        * gnulib/import/m4/gnulib-cache.m4: Update.
        * gnulib/import/m4/gnulib-comp.m4: Update.

Group text sections with prefixes .text.unlikely,.text.hot and .text.startup
by default.

2012-12-18  Sriraman Tallam  <tmsriram@google.com>

* layout.cc (Layout::is_section_name_prefix_grouped): New function.
* layout.h (Layout::is_section_name_prefix_grouped): New function.
* output.cc (Output_section::add_input_section): Check if section
name contains special prefix.  Keep input sections to sort such
sections.
(Output_section::Input_section_sort_section_order_index_compare
 ::operator()): Group sections according to prefixes.
* (Output_section::sort_attached_input_sections): Add condition
to Input_section_entry constructor call.
* testsuite/Makefile.am (text_section_grouping): New test.
* testsuite/Makefile.in: Regenerate.
* testsuite/text_section_grouping.cc: New file.
* testsuite/text_section_grouping.sh: New file.

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daily update

ld/
* ld.texinfo (Options): Describe -Trodata-segment.
* ldlex.h (enum option_values): Add OPTION_TRODATA_SEGMENT.
* lexsup.c (ld_options, parse_args): Handle -Trodata-segment.
* scripttempl/elf.sc (RODATA_ADDR, SHLIB_RODATA_ADDR): Wrap
SEGMENT_START("rodata-segment", ...) + SIZEOF_HEADERS around the value.

fix some bad ChangeLog dates from today

* defs.h (directory_command): Don't declare.
* source.c (directory_command): Now static.

* infcmd.c (all_registers_info, nexti_command, stepi_command)
(continue_command, interrupt_target_command): Now static.
(registers_info): Remove declaration.
* inferior.h (all_registers_info, nexti_command, stepi_command)
(continue_command, interrupt_target_command): Don't declare.

* cli/cli-cmds.c (apropos_command): Now static.

* breakpoint.c (dprintf_command): Now static.

* Makefile.in (init.c): Declare initialize_all_files;
don't include call-cmds.h.
* call-cmds.h: Remove.
* symtab.c: Don't include call-cmds.h.
* top.c: Don't include call-cmds.h.  Declare
initialize_all_files.

* symfile.c (list_overlays_command, map_overlay_command)
(unmap_overlay_command): Now static.

* cli/cli-cmds.c (_initialize_cli_cmds): Remove "document",
"define", "while", and "if" commands.
* cli/cli-script.c (while_command, if_command, define_command)
(document_command): Now static.
(_initialize_cli_script): New function.
* cli/cli-script.h (while_command, if_command, define_command)
(document_command): Don't declare.

* cli/cli-cmds.c (_initialize_cli_cmds): New function.
(init_cli_cmds): Move most code into new function.

* minsyms.c (lookup_solib_trampoline_symbol_by_pc): Now static.
* minsyms.h (lookup_solib_trampoline_symbol_by_pc): Don't
declare.

merge from gcc

PR ld/14736
bfd:
* elf32-microblaze.c (calc_fixup): Add end range.
gas/testsuite:
* gas/microblaze/relax_size.exp: New file - test object size after linker
relaxation
* gas/microblaze/relax_size.s: Likewise
* gas/microblaze/relax_size.elf: Likewise
* gas/microblaze/relax_size2.s: Likewise
* gas/microblaze/relax_size2.elf: Likewise

Port GDB to powerpc-lynx178.

gdb/ChangeLog:

        * defs.h (enum gdb_osabi): Add GDB_OSABI_LYNXOS178.
        * osabi.c (gdb_osabi_names): Add entry for GDB_OSABI_LYNXOS178.
        * xcoffread.c (xcoff_get_core_n_import_files): New function.
        (xcoff_get_n_import_files): New function.
        * xcoffread.h (xcoffread.h): Add declaration.
        * rs6000-aix-tdep.c: #include "xcoffread.h".
        (rs6000_aix_osabi_sniffer): Do not return GDB_OSABI_AIX for
        XCOFF executables that do not depend on any shared library.
        * rs6000-lynx178-tdep.c: New file.
        * configure.tgt: Add powerpc-*-lynx*178 handling.
        * Makefile.in (ALL_TARGET_OBS): Add rs6000-lynx178-tdep.o.
        (ALLDEPFILES): Add rs6000-lynx178-tdep.c.

PR ld/14962
* ld-scripts/pr14962.d, * ld-scripts/pr14962.t,
* ld-scripts/pr14962a.s, * ld-scripts/pr14962b.s: New test.
* ld-scripts/expr.exp: Run it.

* elf.c (swap_out_syms): Set shndx to SHN_ABS when not one of
the special MAP_* values.

Fix ChangeLog format.

2012-12-18  Hui Zhu  <hui_zhu@mentor.com>

* ui-file.c (ui_file): Add to_fseek.
(ui_file_new): Call set_ui_file_fseek.
(null_file_fseek, ui_file_fseek, set_ui_file_fseek,
 stdio_file_fseek): New functions.
(stdio_file_new): Call set_ui_file_fseek.
* ui-file.h (ui_file_fseek_ftype): New typedef.
(set_ui_file_fseek, ui_file_fseek): New externs.

2012-12-18  Hui Zhu  <hui_zhu@mentor.com>

* ui-file.c (set_ui_file_flush): Change flush to flush_ptr.
(set_ui_file_isatty): Change isatty to isatty_ptr.
(set_ui_file_rewind): Change rewind to rewind_ptr.
(set_ui_file_put): Change put to put_ptr.
(set_ui_file_write): Change write to write_ptr.
(set_ui_file_write_async_safe): Change write_async_safe to
write_async_safe_ptr.
(set_ui_file_read): Change read to read_ptr.
(set_ui_file_fputs): Change fputs to fputs_ptr.
(set_ui_file_data): Change delete to delete_ptr.

solib-darwin.c: handle PIE when attaching processes.

gdb/ChangeLog:

        * solib-darwin.c (darwin_current_sos): Fix indentation.
        (darwin_read_exec_load_addr): New function.
        (darwin_solib_create_inferior_hook): Rebase executable.
        * objfiles.c (objfile_rebase1, objfile_rebase): New functions.
        * objfiles.h (objfile_rebase1, objfile_rebase): Add prototypes.

Import gnulib's errno module.

gdb/ChangeLog:

        * gnulib/update-gnulib.sh (IMPORTED_GNULIB_MODULES): Add errno.
        * gnulib/import/errno.in.h: Import.
        * gnulib/import/m4/errno_h.m4: Import.
        * gnulib/aclocal.m4: Regenerate.
        * gnulib/configure: Regenerate.
        * gnulib/import/Makefile.am: Update.
        * gnulib/import/Makefile.in: Update.
        * gnulib/import/m4/gnulib-cache.m4: Update.
        * gnulib/import/m4/gnulib-comp.m4: Update.

Update gnulib to current HEAD.

gdb/ChangeLog:

        * gnulib/update-gnulib.sh (GNULIB_COMMIT_SHA1): Set to
        8d5bd1402003bd0153984b138735adf537d960b0.
        * gnulib/aclocal.m4, configure, config.in: Regenerate.
        * gnulib/import/m4/extern-inline.m4: Import.
        * gnulib/import/wctype-h.c: Import.
        * gnulib/import/Makefile.am: Update.
        * gnulib/import/Makefile.in: Update.
        * gnulib/import/alloca.in.h: Update.
        * gnulib/import/extra/snippet/warn-on-use.h: Update.
        * gnulib/import/localcharset.c: Update.
        * gnulib/import/m4/fcntl-o.m4: Update.
        * gnulib/import/m4/gnulib-cache.m4: Update.
        * gnulib/import/m4/gnulib-comp.m4: Update.
        * gnulib/import/m4/wctype_h.m4: Update.
        * gnulib/import/stdbool.in.h: Update.
        * gnulib/import/verify.h: Update.
        * gnulib/import/wctype.in.h: Update.

Fix author in last ChangeLog entry.

Add call to autoheader in update-gnulib.sh.

gdb/ChangeLog:

        * gnulib/update-gnulib.sh: Add call to autoheader.

*** empty log message ***

daily update

Enable accidentally commented out code.

ld/testsuite/
* ld-elf/elf.exp (stack exec, stack size): Run for *-*-nacl* targets.
* ld-i386/export-class.exp: Run for i?86-*-nacl* targets.

bfd/
* elf32-arm.c (elf32_arm_size_stubs): Skip input BFDs that are
not ARM ELF.

2012-12-17  Jeff Johnston  <jjohnstn@redhat.com>

        * COPYING.LIBGLOSS: Add license for bfin libgloss.

Remove the leading zero

* ld-elf/var1.d: Remove the leading zero.

Add copyright notices

Update PR ld/14962 testcase

* top.c (xgdb_verbose): Remove.

Add a testcase for PR ld/14962

PR ld/14962
* ld-elf/var1.d: New file.
* ld-elf/var1.s: Likewise.
* ld-elf/var1.t: Likewise.

lynx-low: Add debug trace when new thread is discovered.

gdb/gdbserver/ChangeLog:

        * lynx-low.c (lynx_wait_1): Add debug trace before adding
        new thread.

Add PTRACE_GETTRACESIG handling in ptrace_request_to_str

We use this ptrace request when handling SIGTRAP signals,
and without this change, the debug trances show:

    PTRACE (<unknown-request>, ...

This patch fixes this.

gdb/gdbserver/ChangeLog:

        * lynx-low.c (ptrace_request_to_str): Add handling for
        PTRACE_GETTRACESIG.

Delete unused variable in lynx_attach.

gdb/gdbserver/ChangeLog:

        * lynx-low.c (lynx_attach): Delete variable new_process.

remove unused variable in lynx_create_inferior.

gdb/gdbserver/ChangeLog:

        * lynx-low.c (lynx_create_inferior): Delete variable new_process.

lynx-low.c: PTRACE_GETTHREADLIST may not be defined.

LynxOS 178 does not define this macro.

gdb/gdbserver/ChangeLog:

        * lynx-low.c (ptrace_request_to_str): Do not handle
        PTRACE_GETTHREADLIST if this macro does not exist.

PR ld/14962
* ldexp.h (struct ldexp_control): Add "assign_name".
* ldexp.c (fold_name <NAME>): Compare and clear assign_name on match.
(exp_fold_tree_1): Remove existing code testing for self assignment.
Instead set and test expld.assign_name.
* ldlang.c (scan_for_self_assignment): Delete.
(print_assignment): Instead set and test expld.assign_name.

*** empty log message ***

Don't check IFUNC relocations in elf_*_check_relocs

* elf32-i386.c (elf_i386_check_relocs): Don't check IFUNC
relocations here.
* elf64-x86-64.c (elf_x86_64_check_relocs): Likewise.

daily update

Also check local IFUNC references

bfd/

PR ld/14968
* elf32-i386.c (elf_i386_adjust_dynamic_symbol): Also check
local IFUNC references.
* elf64-x86-64.c (elf_x86_64_adjust_dynamic_symbol): Likewise.

ld/testsuite/

PR ld/14968
* ld-ifunc/ifunc-18a-i386.d: New file.
* ld-ifunc/ifunc-18a-x86-64.d: Likewise.
* ld-ifunc/ifunc-18a.s: Likewise.
* ld-ifunc/ifunc-18b-i386.d: Likewise.
* ld-ifunc/ifunc-18b-x86-64.d: Likewise.
* ld-ifunc/ifunc-18b.s: Likewise.
* ld-ifunc/ifunc-19a-i386.d: Likewise.
* ld-ifunc/ifunc-19a-x86-64.d: Likewise.
* ld-ifunc/ifunc-19a.s: Likewise.
* ld-ifunc/ifunc-19b-i386.d: Likewise.
* ld-ifunc/ifunc-19b-x86-64.d: Likewise.
* ld-ifunc/ifunc-19b.s: Likewise.

gdb/
Code cleanup.
* skip.c (skip_function_command, skip_file_command, skip_info): Remove
unused forward declarations.
(skip_file_command): Make variables symtab and filename targets const.
Use proper 0 vs. NULL constant everywhere.
(skip_function_command): Use proper 0 vs. NULL constant everywhere.
Include empty line after declarations.  Use GNU spacing in a comment.
Do not use strlen for end of string check.
(skip_info): Use proper 0 vs. NULL constant everywhere.  Add column 5
comments.
(skip_enable_command, skip_disable_command, skip_delete_command)
(add_skiplist_entry): Use proper 0 vs. NULL constant everywhere.
(function_pc_is_marked_for_skip): Make variable filename target const.
Use proper 0 vs. NULL constant everywhere.  Fix GNU non-compliant
comment formatting.
(skip_re_set): Add empty line after function comment.  Use proper 0 vs.
NULL constant everywhere.  Include empty line after declarations.  Make
variable symtab target const.  Do not use strlen for end of string
check.

gdb/doc/
* gdbint.texinfo (Coding Standards) (C Usage): New rule for 0 vs. NULL.

gdb/
Code cleanup.
* breakpoint.c (clear_command): Remove variable sal_name_len and its
initialization, remove it from the compare_filenames_for_search call.
* dwarf2read.c (dw2_map_symtabs_matching_filename): Remove variable
name_len and its initialization, remove it from the
compare_filenames_for_search calls.
* psymtab.c (partial_map_symtabs_matching_filename): Likewise.
* symtab.c (compare_filenames_for_search): Remove the search_len
parameter, update the function comment, new variable search_len
initialized from SEARCH_NAME.
(iterate_over_some_symtabs): Remove variable name_len and its
initialization, remove it from the compare_filenames_for_search calls.
* symtab.h (compare_filenames_for_search): Remove the search_len
parameter,

* configure.ac (ENABLE_GOLD): Consider *-*-gnu* targets ELF.
* configure: Regenerate.

Makefile.in: Move ravenscar-thread.c from SFILES to ALLDEPFILES.

gdb/ChangeLog:

* Makefile.in (SFILES): Move ravenscar-thread.c from here...
(ALLDEPFILES): ... to there.

*** empty log message ***

daily update

Minor ChangeLog fix.

Add missing backslash in configure.tgt gdb_target_ops (sparc-*-*)

I forgot to put a '\' when splitting the line in two.

gdb/ChangeLog:

        * configure.tgt (sparc-*-*): Add missing '\' in gdb_target_ops.

Add ravenscar-thread support for powerpc.

gdb/ChangeLog:

        * ppc-ravenscar-thread.h, ppc-ravenscar-thread.c: New files.
        * Makefile.in (ALL_TARGET_OBS): Add ppc-ravenscar-thread.o.
        (HFILES_NO_SRCDIR): Add ppc-ravenscar-thread.h.
        (ALLDEPFILES): Add ppc-ravenscar-thread.c.
        * configure.tgt: Add ravenscar-thread.o and ppc-ravenscar-thread.o
        to gdb_target_obs for every target that uses rs6000-tdep.o.
        * rs6000-tdep.c: #include "ppc-ravenscar-thread.h".
        (rs6000_gdbarch_init): Call register_e500_ravenscar_ops
        or register_ppc_ravenscar_ops.

change ravenscar_sparc prefixes into sparc_ravenscar...

... following the file renaming in the previous commit.

gdb/ChangeLog:

        * sparc-ravenscar-thread.h: SPARC_RAVENSCAR_THREAD_H renames
        RAVENSCAR_SPARC_THREAD_H.
        * sparc-ravenscar-thread.c: Rename all global entities
        whose name is uses "ravenscar_sparc" as the prefix to use
        "sparc_ravenscar" instead.

Rename ravenscar-sparc-thread.[hc] into sparc-ravenscar-thread.[hc].

gdb/ChangeLog:

        * sparc-ravenscar-thread.h: Renames ravenscar-sparc-thread.h.
        * sparc-ravenscar-thread.c: Renames ravenscar-sparc-thread.c.
        Adjust sparc-ravenscar-thread.h #include.
        * sparc-tdep.c: Adjust sparc-ravenscar-thread.h #include
        accordingly.
        * Makefile.in: Replace ravenscar-sparc-thread with
        sparc-ravenscar-thread throughout.
        * configure.tgt: Likewise.

gdbarch-ification of ravenscar-thread support.

gdb/ChangeLog:

        * gdbarch.sh: Add "struct ravenscar_arch_ops" advance
        declaration.
        (ravenscar_ops): New gdbarch variable.
        * gdbarch.h, gdbarch.c: Regenerate.
        * ravenscar-thread.h (ravenscar_register_arch_ops): Delete.
        * ravenscar-thread.c (current_arch_ops): Delete.
        (ravenscar_fetch_registers): Get the ravenscar_arch_ops
        from the gdbarch.
        (ravenscar_store_registers, ravenscar_prepare_to_store): Likewise.
        (ravenscar_inferior_created): Add gdbarch_ravenscar_ops check.
        (ravenscar_register_arch_ops): Delete.
        * ravenscar-sparc-thread.h: New file.
        * ravenscar-sparc-thread.c: #include "ravenscar-sparc-thread.h".
        (ravenscar_sparc_ops): Define value statically.
        (_initialize_ravenscar_sparc): Delete.
        (register_sparc_ravenscar_ops): New function.
        * sparc-tdep.c: #include "ravenscar-sparc-thread.h".
        (sparc32_gdbarch_init): Add call to register_sparc_ravenscar_ops.
        * Makefile.in (ALL_TARGET_OBS): Add ravenscar-thread.o and
        ravenscar-sparc-thread.o.
        (SFILES): Add ravenscar-thread.c.
        (HFILES_NO_SRCDIR): Add ravenscar-sparc-thread.h.
        (ALLDEPFILES): ravenscar-sparc-thread.c.
        * configure.tgt: Add ravenscar-thread.o and ravenscar-sparc-thread.o
        to gdb_target_obs
        for all the targets that use sparc-tdep.o.

minor ravenscar-thread cleanup

The use of the ravenscar_open static global is unnecessary.
This patch removes it. It also removes some routines that
were created in association with the management of this global.

gdb/ChangeLog:

        * ravenscar-thread.c (ravenscar_is_open): Delete.
        (ravenscar_initialize): Move most of the code from here...
        (ravenscar_inferior_created): ... to there.  Invert logic.
        (ravenscar_close): Delete.
        (init_ravenscar_thread_ops): Remove setting of
        ravenscar_ops.to_close.