range stepping: tests

This adds tests to verify range stepping is used as expected, by
inspecting the RSP traffic, looking for vCont;s and vCont;r packets.

gdb/testsuite/
2013-05-23  Yao Qi  <yao@codesourcery.com>
    Pedro Alves  <palves@redhat.com>

* gdb.base/range-stepping.c: New file.
* gdb.base/range-stepping.exp: New file.
* gdb.trace/range-stepping.c: New file.
* gdb.trace/range-stepping.exp: New file.
* lib/range-stepping-support.exp: New file.

range stepping: gdbserver (x86 GNU/Linux)

This patch adds support for range stepping to GDBserver, teaching it
about vCont;r.

It'd be easy to enable this for all hardware single-step targets
without needing the linux_target_ops hook, however, at least PPC needs
special care, due to the fact that PPC atomic sequences can't be
hardware single-stepped through, a thing which GDBserver doesn't know
about.  So this leaves the support limited to x86/x86_64.

gdb/
2013-05-23  Pedro Alves  <palves@redhat.com>

* NEWS: Mention GDBserver range stepping support.

gdb/gdbserver/
2013-05-23  Yao Qi  <yao@codesourcery.com>
    Pedro Alves  <palves@redhat.com>

* linux-low.c (lwp_in_step_range): New function.
(linux_wait_1): If the thread was range stepping and stopped
outside the stepping range, report the stop to GDB.  Otherwise,
continue stepping.  Add range stepping debug output.
(linux_set_resume_request): Copy the step range from the resume
request to the lwp.
(linux_supports_range_stepping): New.
(linux_target_ops) <supports_range_stepping>: Set to
linux_supports_range_stepping.
* linux-low.h (struct linux_target_ops)
<supports_range_stepping>: New field.
(struct lwp_info) <step_range_start, step_range_end>: New fields.
* linux-x86-low.c (x86_supports_range_stepping): New.
(the_low_target) <supports_range_stepping>: Set to
x86_supports_range_stepping.
* server.c (handle_v_cont): Handle 'r' action.
(handle_v_requests): Append ";r" if the target supports range
stepping.
* target.h (struct thread_resume) <step_range_start,
step_range_end>: New fields.
(struct target_ops) <supports_range_stepping>:
New field.
(target_supports_range_stepping): New macro.

range stepping: gdb

This patch teaches GDB to take advantage of target-assisted range
stepping.  It adds a new 'r ADDR1,ADDR2' action to vCont (vCont;r),
meaning, "step once, and keep stepping as long as the thread is in the
[ADDR1,ADDR2) range".

Rationale:

When user issues the "step" command on the following line of source,

   a = b + c + d * e - a;

GDB single-steps every single instruction until the program reaches a
new different line.  E.g., on x86_64, that line compiles to:

   0x08048434 <+65>:    mov    0x1c(%esp),%eax
   0x08048438 <+69>:    mov    0x30(%esp),%edx
   0x0804843c <+73>:    add    %eax,%edx
   0x0804843e <+75>:    mov    0x18(%esp),%eax
   0x08048442 <+79>:    imul   0x2c(%esp),%eax
   0x08048447 <+84>:    add    %edx,%eax
   0x08048449 <+86>:    sub    0x34(%esp),%eax
   0x0804844d <+90>:    mov    %eax,0x34(%esp)
   0x08048451 <+94>:    mov    0x1c(%esp),%eax

and the following is the RSP traffic between GDB and GDBserver:

 --> vCont;s:p2e13.2e13;c
 <-- T0505:68efffbf;04:30efffbf;08:3c840408;thread:p2e13.2e13;core:1;
 --> vCont;s:p2e13.2e13;c
 <-- T0505:68efffbf;04:30efffbf;08:3e840408;thread:p2e13.2e13;core:2;
 --> vCont;s:p2e13.2e13;c
 <-- T0505:68efffbf;04:30efffbf;08:42840408;thread:p2e13.2e13;core:2;
 --> vCont;s:p2e13.2e13;c
 <-- T0505:68efffbf;04:30efffbf;08:47840408;thread:p2e13.2e13;core:0;
 --> vCont;s:p2e13.2e13;c
 <-- T0505:68efffbf;04:30efffbf;08:49840408;thread:p2e13.2e13;core:0;
 --> vCont;s:p2e13.2e13;c
 <-- T0505:68efffbf;04:30efffbf;08:4d840408;thread:p2e13.2e13;core:0;
 --> vCont;s:p2e13.2e13;c
 <-- T0505:68efffbf;04:30efffbf;08:51840408;thread:p2e13.2e13;core:0;

IOW, a lot of roundtrips between GDB and GDBserver.

If we add a new command to the RSP, meaning "keep stepping and don't
report a stop until the program goes out of the [0x08048434,
0x08048451) address range", then the RSP traffic can be reduced down
to:

 --> vCont;r8048434,8048451:p2db0.2db0;c
 <-- T0505:68efffbf;04:30efffbf;08:51840408;thread:p2db0.2db0;core:1;

As number of packets is reduced dramatically, the performance of
stepping source lines is much improved.

In case something is wrong with range stepping on the stub side, the
debug info or even gdb, this adds a "set/show range-stepping" command
to be able to turn range stepping off.

gdb/
2013-05-23  Yao Qi  <yao@codesourcery.com>
    Pedro Alves  <palves@redhat.com>

* gdbthread.h (struct thread_control_state) <may_range_step>: New
field.
* infcmd.c (step_once, until_next_command): Enable range stepping.
* infrun.c (displaced_step_prepare): Disable range stepping.
(resume): Disable range stepping if stepping over a breakpoint or
we have software watchpoints.  If range stepping is enabled,
assert the thread is in the stepping range.
(clear_proceed_status_thread): Clear may_range_step.
(handle_inferior_event): Disable range stepping as soon as we know
the thread that hit the event.  Re-enable it whenever we're going
to step with a step range.
* remote.c (struct vCont_action_support) <r>: New field.
(use_range_stepping): New global.
(remote_vcont_probe): Handle 'r' action.
(append_resumption): Append an 'r' action if the thread may range
step.
(show_range_stepping): New function.
(set_range_stepping): New function.
(_initialize_remote): Call add_setshow_boolean_cmd to register the
'set range-stepping' and 'show range-stepping' commands.
* NEWS: Mention range stepping, the new vCont;r action, and the
new "set/show range-stepping" commands.

gdb/doc/
2013-05-23  Yao Qi  <yao@codesourcery.com>
    Pedro Alves  <palves@redhat.com>

* gdb.texinfo (Packets): Document 'vCont;r'.
(Continuing and Stepping): Document target-assisted range
stepping, and the 'set range-stepping' and 'show range-stepping'
commands.

Convert rs->support_vCont_t to a struct.

Convert the 'support_vCont_t' int field to a struct, in preparation
for adding more fields to it.

gdb/
2013-05-23  Yao Qi  <yao@codesourcery.com>
    Pedro Alves  <palves@redhat.com>

* remote.c (struct vCont_action_support): New struct.
(struct remote_state) <support_vCont_t>: Remove field.
<vCont_actions_support>: New field.
(remote_vcont_probe, remote_stop_ns): Update.

Factor out in-stepping-range checks.

This adds a function for doing within-thread's-stepping-range checks,
and converts a couple spots to use it.  Following patches will add
more uses.

gdb/
2013-05-23  Yao Qi  <yao@codesourcery.com>
    Pedro Alves  <palves@redhat.com>

* gdbthread.h (pc_in_thread_step_range): New declaration.
* thread.c (pc_in_thread_step_range): New function.
* infrun.c (handle_inferior_event): Use it.

2013-05-23  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

* s390-opc.c: Fix length operand in RSL_LRDFU and RSL_LRDFEU
instruction format.

2013-05-23  Andreas Krebbel  <Andreas.Krebbel@de.ibm.com>

* gas/s390/zarch-zEC12.d: Adjust length operands for cdzt, cxzt,
czdt, and czxt.
* gas/s390/zarch-zEC12.d: Likewise.

mi/mi-cmd-break.c: Use xsnprintf instead of sprintf (ARI fix)

gdb/ChangeLog:

        * mi/mi-cmd-break.c (mi_argv_to_format): Use xsnprintf instead
        of sprintf.

Document new <data-dir>/system-gdbinit area

gdb/doc/ChangeLog:

        * gdb.texinfo (Installed System-wide Configuration Scripts):
        Add subsection describing the scripts now available under
        the data-dir's system-gdbbinit subdirectory.
        * NEWS: Add entry announcing the availability of system-wide
        configuration scripts for ElinOS and Wind River Linux.

* format.c (bfd_check_format_matches): Don't match a target in
targ_selvecs if some other target is a better match.  If
targets implement match priority, fall back to the first of
the best matches.

daily update

*** empty log message ***

* ada-lang.c (is_known_support_routine): Add explicit free of
'func_name' from find_frame_funname.
(ada_unhandled_exception_name_addr_from_raise): Add cleanups
for func_name from find_frame_funname.
* python/py-frame.c (frapy_name): Add explicit free of
'name' from find_frame_funname.
* stack.c (find_frame_funname): Add comment explaining that
funcp must be freed by the caller.
Return copy of symbol names instead of pointers.
(print_frame): Add a cleanup for 'funname' from
find_frame_funname.
* stack.h (find_frame_funname): Remove "const" from
'funname' parameter.

PR c++/15401:
* c-valprint.c (c_value_print): Use value_addr for
references.  Convert back to reference type with value_ref.
gdb/testsuite
* gdb.cp/class2.cc (main): New local 'aref'.
* gdb.cp/class2.exp: Check printing of 'aref'.

include/opcode/
2013-05-22  Jürgen Urban  <JuergenUrban@gmx.de>

* mips.h (M_LQC2_AB, M_SQC2_AB): New macros.

opcodes/
2013-05-22  Jürgen Urban  <JuergenUrban@gmx.de>

* mips-opc.c (mips_builtin_opcodes): Add R5900 VU0 instructions.

gas/
2013-05-22  Jürgen Urban  <JuergenUrban@gmx.de>

* config/tc-mips.c (macro): Handle M_LQC2_AB and M_SQC2_AB.

gas/testsuite/
2013-05-22  Jürgen Urban  <JuergenUrban@gmx.de>

* gas/mips/r5900-full.s, gas/mips/r5900-full.d: Add tests for LQ
and SQ macros.
* gas/mips/r5900-vu0.s, gas/mips/r5900-vu0.d: New test.
* gas/mips/mips.exp: Run it.

Add EM_INTEL205 to EM_INTEL209

* common.h (EM_INTEL205): New.
(EM_INTEL206): Likewise.
(EM_INTEL207): Likewise.
(EM_INTEL208): Likewise.
(EM_INTEL209): Likewise.

* gdb.threads/wp-replication.c (main): Insert some code at the start
to ensure the breakpoint on main is only hit once.  Fix comment.

Fix reporting of DLL unload events on MS-Windows.

 gdb/windows-nat.c (handle_unload_dll): Don't call solib_add for the
 unloaded DLL, it will be done by handle_solib_event.  See
 http://sourceware.org/ml/gdb-patches/2013-05/msg00713.html for the
 details.

* aarch64.c: New file.
* corefile.c (find_call): Call aarch64_find_call for bfd_arch_aarch64.
* Makefile.am (sources): Add aarch64.c.
* Makefile.in: Regenerate.

2013-05-22  Phil Muldoon  <pmuldoon@redhat.com>

* ui-out.c: Create typedef ui_out_level_p and define vector
operations for that type.
(struct ui_out): Use a vector instead of an array.
(current_level): Return level from a vector.
(push_level): Create a level in a vector.
(pop_level): Delete a level in a vector.
(ui_out_new): Create initial level zero level, and store in a
vector.
(ui_out_destroy): Add vector cleanup.

readline/

* configure.in: Invoke AC_CANONICAL_BUILD.
Change $host_os to $build_os.
* configure: Regenerated.

Let the ARI know gdb_Py_DECREF is OK.

The ARI complains with:

> gdb/python/python-internal.h:177: code: editCase function: Function name starts lower case but has uppercased letters.
gdb/python/python-internal.h:177:gdb_Py_DECREF (void *op)

gdb_Py_DECREF is just wrapping a python macro that happens to be mixed case.

gdb/
2013-05-22  Pedro Alves  <palves@redhat.com>

* python/python-internal.h (gdb_Py_DECREF): Tag with
"ARI: editCase function".

PR binutils/15462
* elfxx-mips.c (_bfd_mips_elf_relocate_section): Warning fix.

PR binutils/15474
* srec.c (srec_set_section_contents): Properly convert size
and offset to address when octets_per_byte is not unity.

daily update

*** empty log message ***

2013-05-21  Paul Pluzhnikov  <ppluzhnikov@google.com>

* solib-svr4.c (svr4_free_so): Protect against NULL dereference.

gold/
* symtab.h (Symbol::is_cxx_vtable): New function.
* target-reloc.h (relocate_section): Check for vtable symbol.
* testsuite/Makefile.am (missing_key_func.sh): New test case.
* testsuite/Makefile.in: Regenerate.
* testsuite/missing_key_func.cc: New test source.
* testsuite/missing_key_func.sh: New test script.

gold/
     * object.cc (Sized_relobj_file::get_symbol_location_info): Set
     type of enclosing symbol.
     (Relocate_info::location): Check symbol type when describing symbol.
     * object.h (Symbol_location_info): Remove unused line_number;
     add enclosing_symbol_type.
     * testsuite/debug_msg.sh: Adjust expected output.

py_decref: Don't check for NULL before calling Py_DECREF.

The only difference between Py_DECREF and Py_XDECREF is that the latter allows passing
in a NULL object, while the former prohibits it.  Given that, it's natural to expect
the same from py_decref vs py_xdecref.

gdb/
2013-05-21  Pedro Alves  <palves@redhat.com>

* python/py-prettyprint.c (apply_val_pretty_printer): Check
whether PRINTER is NULL before installing a Py_DECREF cleanup.
* python/py-utils.c (py_decref): Don't check for NULL before
calling Py_DECREF.

Centralize workaround for Python 2.6's Py_DECREF.

Wrap/redefine Py_DECREF ourselves, avoiding the need for uses to care
about extra braces due to the fact that Python only started wrapping Py_DECREF
in 'do {} while (0)' after 2.6.

gdb/
2013-05-21  Pedro Alves  <palves@redhat.com>

* python/py-utils.c (py_decref): Remove extra braces.
(gdb_pymodule_addobject): Remove extra braces.
* python-internal.h (gdb_Py_DECREF): New static inline function.
(Py_DECREF): Redefine as calling gdb_Py_DECREF.

* gdb.base/filesym.exp: Use gdb_test_multiple instead of
gdb_expect.
Add test to flush the remaining input buffer so that this
file passes testsuite/12649.

Fix internal error caused by interaction between catch signal and fork

2013-05-21  Sterling Augustine  <saugustine@google.com>

* boards/remote-stdio-gdbserver.exp: New file.

gdb/
Workaround Python 2.6.
* python/py-utils.c (gdb_pymodule_addobject): Wrap Py_DECREF into
a block.

gdb/testsuite/
PR testsuite/12649
* gdb.mi/mi-dprintf.exp (mi_continue_dprintf): Fix expect strings for
racy matches.

gdb/
Code cleanup: constification.
* solib.c (solib_ops): Make return type and ops variable type const.
(set_solib_ops): Make the new_ops parameter and ops variable const.
(solib_find, solib_map_sections, clear_so, free_so, update_solib_list)
(solib_add, solib_keep_data_in_core, clear_solib)
(solib_create_inferior_hook, in_solib_dynsym_resolve_code)
(reload_shared_libraries, solib_global_lookup): Make the ops variable
const.
* solib.h (set_solib_ops): Make the new_ops parameter const.

* gdb.dwarf2/dw2-dir-file-name.exp: Don't use brace expansion,
since it's not supported in all shells.

PR ld/12982
* ld-plugin/pr12982.d: Fail if RWE GNU_STACK present.

Add new system-gdbinit infrastructure

gdb/ChangeLog:

        * data-directory/Makefile.in (SYSTEM_GDBINIT_SRCDIR): New
        variable.
        (VPATH): Add SYSTEM_GDBINIT_SRCDIR.
        (SYSTEM_GDBINIT_DIR, SYSTEM_GDBINIT_INSTALL_DIR)
        (SYSTEM_GDBINIT_FILES): New variables.
        (all): Add stamp-system-gdbinit.
        (stamp-system-gdbinit): New rule.
        (clean-system-gdbinit, install-system-gdbinit)
        (uninstall-system-gdbinit): New rules.  Make them .PHONY.
        (install-only): Add dependency on install-system-gdbinit.
        (uninstall): Add dependency on uninstall-system-gdbinit.
        (clean): Add dependency on clean-system-gdbinit.
        * system-gdbinit/elinos.py: New file.
        * system-gdbinit/wrs-linux.py: New file.

[Ada] Fix cleanup leak in ada-lang.c:old_renaming_is_invisible

gdb/ChangeLog:

* ada-lang.c (old_renaming_is_invisible): Fix cleanup leak.

2013-05-21  Hui Zhu  <hui@codesourcery.com>

* breakpoint.c (dprintf_breakpoint_ops): Remove its static.
* breakpoint.h (dprintf_breakpoint_ops): Add extern.
* mi/mi-cmd-break.c (ctype.h): New include.
(gdb_obstack.h): New include.
(mi_argv_to_format, mi_cmd_break_insert_1): New.
(mi_cmd_break_insert): Call mi_cmd_break_insert_1.
(mi_cmd_dprintf_insert): New.
* mi/mi-cmds.c (mi_cmds): Add "dprintf-insert".
* mi/mi-cmds.h (mi_cmd_dprintf_insert): New extern.

2013-05-21  Hui Zhu  <hui@codesourcery.com>

* gdb.texinfo (GDB/MI Breakpoint Commands): Describe the
"-dprintf-insert" command.

2013-05-21  Hui Zhu  <hui@codesourcery.com>

* gdb.mi/Makefile.in (PROGS): Add "mi-dprintf".
* gdb.mi/mi-dprintf.exp, gdb.mi/mi-dprintf.c: New.

* gas/ppc/vsx2.d: Ignore trailing padding.

* ld-powerpc/export-class.exp (supports_ppc64): Delete.
(powerpc_export_class_test): Add "endian" param.
(abis): Add little-endian targets and test.
* ld-powerpc/powerpc-64-export-class.xd: Update for little-endian.

opcodes/
* ppc-dis.c (powerpc_init_dialect): Set default dialect to power8.
* ppc-opc.c (BHRBE, ST, SIX, PS, SXL, VXPS_MASK, XX1RB_MASK,
XLS_MASK, PPCVSX2): New defines.
(powerpc_opcodes) <bcdadd., bcdsub., bctar, bctar, bctarl, clrbhrb,
fmrgew, fmrgow, lqarx, lxsiwax, lxsiwzx, lxsspx, mfbhrbe,
mffprd, mffprwz, mfvrd, mfvrwz, mfvsrd, mfvsrwz, msgclrp, msgsndp,
mtfprd, mtfprwa, mtfprwz, mtsle, mtvrd, mtvrwa, mtvrwz, mtvsrd,
mtvsrwa, mtvsrwz, pbt., rfebb, stqcx., stxsiwx, stxsspx,
vaddcuq, vaddecuq, vaddeuqm, vaddudm, vadduqm, vbpermq, vcipher,
vcipherlast, vclzb, vclzd, vclzh, vclzw, vcmpequd, vcmpequd.,
vcmpgtsd, vcmpgtsd., vcmpgtud, vcmpgtud., veqv, vgbbd, vmaxsd,
vmaxud, vminsd, vminud, vmrgew, vmrgow, vmulesw, vmuleuw, vmulosw,
vmulouw, vmuluwm, vnand, vncipher, vncipherlast, vorc, vpermxor,
vpksdss, vpksdus, vpkudum, vpkudus, vpmsumb, vpmsumd, vpmsumh,
vpmsumw, vpopcntb, vpopcntd, vpopcnth, vpopcntw, vrld, vsbox,
vshasigmad, vshasigmaw, vsld, vsrad, vsrd, vsubcuq, vsubecuq,
vsubeuqm, vsubudm, vsubuqm, vupkhsw, vupklsw, waitasec, xsaddsp,
xscvdpspn, xscvspdpn, xscvsxdsp, xscvuxdsp, xsdivsp, xsmaddasp,
xsmaddmsp, xsmsubasp, xsmsubmsp, xsmulsp, xsnmaddasp, xsnmaddmsp,
xsnmsubasp, xsnmsubmsp, xsresp, xsrsp, xsrsqrtesp, xssqrtsp,
xssubsp, xxleqv, xxlnand, xxlorc>: New instructions.
<lxvx, stxvx>: New extended mnemonics.

gas/
* config/tc-ppc.c (ppc_setup_opcodes): Use new_seg to fix error
and clean up warning when using PRINT_OPCODE_TABLE.

gas/testsuite/
* gas/ppc/altivec2.d <bcdadd., bcdadd., vaddcuq, vaddecuq, vaddeuqm,
vaddudm, vadduqm, vbpermq, vcipher, vcipherlast, vclzb, vclzd, vclzh,
vclzw, vcmpequd, vcmpequd., vcmpgtsd, vcmpgtsd., vcmpgtud, vcmpgtud.,
veqv, vgbbd, vmaxsd, vmaxud, vminsd, vminud, vmrgew, vmrgow, vmulesw,
vmuleuw, vmulosw, vmulouw, vmuluwm, vnand, vncipher, vncipherlast,
vorc, vpermxor, vpksdss, vpksdus, vpkudum, vpkudus, vpmsumb, vpmsumd,
vpmsumh, vpmsumw, vpopcntb, vpopcntd, vpopcnth, vpopcntw, vrld, vsbox,
vshasigmad, vshasigmaw, vsld, vsrad, vsrd, vsubcuq, vsubecuq, vsubeuqm,
vsubudm, vsubuqm, vupkhsw, vupklsw>: Add new tests.
* gas/ppc/altivec2.s: Likewise.
* gas/ppc/power8.d <bcdadd., bcdsub., bctar, bctarl, clrbhrb, fmrgew,
fmrgow, lqarx, lxsiwax, lxsiwzx, lxsspx, mfbhrbe, mfvsrd, mfvsrwz,
msgclrp, msgsndp, mtsle, mtvsrd, mtvsrwa, mtvsrwz, pbt., rfebb,
stqcx., stxsiwx, stxsspx, vaddcuq, vaddecuq, vaddeuqm, vaddudm,
vadduqm, vbpermq, vcipher, vcipherlast, vclzb, vclzd, vclzh, vclzw,
vcmpequd, vcmpequd., vcmpgtsd, vcmpgtsd., vcmpgtud, vcmpgtud., veqv,
vgbbd, vmaxsd, vmaxud, vminsd, vminud, vmrgow, vmulesw, vmuleuw,
vmulosw, vmulouw, vmuluwm, vnand, vncipher, vncipherlast, vorc,
vpermxor, vpksdss, vpksdus, vpkudum, vpkudus, vpmsumb, vpmsumd,
vpmsumh, vpmsumw, vpopcntb, vpopcntd, vpopcnth, vpopcntw, vrld, vsbox,
vshasigmad, vshasigmaw, vsld, vsrad, vsrd, vsubcuq, vsubecuq, vsubeuqm,
vsubuqm, vupkhsw, vupklsw, waitasec, xsaddsp, xscvdpspn, xscvspdpn,
xscvsxdsp, xscvuxdsp, xsdivsp, xsmaddasp, xsmaddmsp, xsmsubasp,
xsmsubmsp, xsmulsp, xsnmaddasp, xsnmaddmsp, xsnmsubasp, xsnmsubmsp,
xsresp, xsrsp, xsrsqrtesp, xssqrtsp, xssubsp, xxleqv, xxlnand,
xxlorc>: Add new tests.
* gas/ppc/power8.s Likewise.
* gas/ppc/vsx.d <lxvd2x, stxvd2x>: Add new tests.
* gas/ppc/vsx.s Likewise.
* gas/ppc/vsx2.d: New test file.
* gas/ppc/vsx2.s: Likewise.
* gas/ppc/ppc.exp: Run it.

*** empty log message ***

daily update

* elf32-vax.c (elf_vax_instantiate_got_entries): Only set the
refcount member of the gotplt_union when resetting the reference
count.  Adjust comment.

* lib/dwarf.exp (Dwarf): New variable _abbrev_section.
(_handle_DW_TAG): Use it.
(cu, tu): Replace parameters is_64, version, addr_size with options.
All callers updated.  Add Fission support.
* gdb.dwarf2/implptrconst.exp: Update callers of "cu".
* gdb.dwarf2/method-ptr.exp: Ditto.
* gdb.dwarf2/nostaticblock.exp: Ditto.
* gdb.dwarf2/subrange.exp: Ditto.
* gdb.dwarf2/missing-sig-type.exp: Update callers of "cu", "tu".

* gdb.gdb/python-selftest.exp: New file.

* python/py-prettyprint.c (search_pp_list): Decref 'attr'.

* python/py-value.c (valpy_get_dynamic_type): Simplify
dynamic_type assignment.  Use Py_XINCREF.

* python/py-type.c (typy_fields): Unconditionally decref 'r'.

* python/py-frame.c (frapy_older, frapy_newer, gdbpy_newest_frame)
(gdbpy_selected_frame): Move object-construction code
out of TRY_CATCH.

* python/py-arch.c (gdbpy_initialize_arch): Use
gdb_pymodule_addobject.
* python/py-block.c (gdbpy_initialize_blocks): Use
gdb_pymodule_addobject.
* python/py-breakpoint.c (gdbpy_initialize_breakpoints): Use
gdb_pymodule_addobject.
* python/py-cmd.c (gdbpy_initialize_breakpoints): Use
gdb_pymodule_addobject.
* python/py-event.c (gdbpy_initialize_event_generic): Use
gdb_pymodule_addobject.
* python/py-evtregistry.c (gdbpy_initialize_eventregistry): Use
gdb_pymodule_addobject.
* python/py-evts.c (add_new_registry): Use
gdb_pymodule_addobject.
(gdbpy_initialize_py_events): Likewise.
* python/py-finishbreakpoint.c
(gdbpy_initialize_finishbreakpoints): Use
gdb_pymodule_addobject.
* python/py-frame.c (gdbpy_initialize_frames): Use
gdb_pymodule_addobject.
* python/py-function.c (gdbpy_initialize_functions): Use
gdb_pymodule_addobject.
* python/py-inferior.c (gdbpy_initialize_inferior): Use
gdb_pymodule_addobject.
* python/py-infthread.c (gdbpy_initialize_thread): Use
gdb_pymodule_addobject.
* python/py-objfile.c (gdbpy_initialize_objfile): Use
gdb_pymodule_addobject.
* python/py-param.c (gdbpy_initialize_parameters): Use
gdb_pymodule_addobject.
* python/py-progspace.c (gdbpy_initialize_pspace): Use
gdb_pymodule_addobject.
* python/py-symbol.c (gdbpy_initialize_symbols): Use
gdb_pymodule_addobject.
* python/py-symtab.c (gdbpy_initialize_symtabs): Use
gdb_pymodule_addobject.
* python/py-type.c (gdbpy_initialize_types): Use
gdb_pymodule_addobject.
* python/py-utils.c (gdb_pymodule_addobject): New function.
* python/py-value.c (gdbpy_initialize_values): Use
gdb_pymodule_addobject.
* python/python-internal.h (gdb_pymodule_addobject): Declare.
* python/python.c (_initialize_python): Use
gdb_pymodule_addobject.

* python/py-cmd.c (cmdpy_completer): Use explicit decref.
* python/py-param.c (get_set_value, get_show_value): Use
explicit decrefs.
* python/python.c (start_type_printers, apply_type_printers):
Use explicit decrefs.

* python/py-evts.c (gdbpy_initialize_py_events): Don't
incref the module.

* python/python.c (gdbpy_run_events): Decref the result
of PyObject_CallObject.

* python/py-symtab.c (set_sal): Use
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION.  Return -1 on error.
(symtab_and_line_to_sal_object): Update.

* python/py-param.c (compute_enum_values): Decref 'item'.

* mi/mi-main.c: Include python-internal.h.
(mi_cmd_list_features): Check gdb_python_initialized.
* python/py-inferior.c (python_on_normal_stop, python_on_resume)
(python_inferior_exit, python_new_objfile, add_thread_object)
(delete_thread_object, py_free_inferior): Check
gdb_python_initialized.
* python/py-prettyprint.c (apply_val_pretty_printer): Check
gdb_python_initialized.
* python/py-type.c (save_objfile_types): Check
gdb_python_initialized.
* python/python-internal.h (gdb_python_initialized): Declare.
* python/python.c (ensure_python_env): Throw exception if
Python not initialized.
(before_prompt_hook, source_python_script_for_objfile)
(start_type_printers, apply_type_printers,
free_type_printers): Check gdb_python_initialized.
* varobj.c (varobj_get_display_hint)
(dynamic_varobj_has_child_method, update_dynamic_varobj_children)
(install_new_value_visualizer, varobj_set_visualizer)
(value_get_print_value): Check gdb_python_initialized.

* python/py-arch.c (gdbpy_initialize_arch): Return 'int'.
Check errors.
* python/py-auto-load.c (gdbpy_initialize_auto_load): Return 'int'.
* python/py-block.c (gdbpy_initialize_blocks): Return 'int'.
Check errors.
* python/py-breakpoint.c (gdbpy_initialize_breakpoints): Return 'int'.
Check errors.
* python/py-cmd.c (gdbpy_initialize_commands): Return 'int'.
Check errors.
* python/py-event.c (gdbpy_initialize_event): Return 'int'.
Check errors.
* python/py-event.h (GDBPY_NEW_EVENT_TYPE): Change generated
init function to return 'int'.
* python/py-evtregistry.c (gdbpy_initialize_eventregistry):
Return 'int'.  Check errors.
* python/py-evts.c (gdbpy_initialize_py_events): Return 'int'.
Check errors.
* python/py-finishbreakpoint.c (gdbpy_initialize_finishbreakpoints):
Return 'int'.  Check errors.
* python/py-frame.c (gdbpy_initialize_frames): Return 'int'.
Check errors.
* python/py-function.c (gdbpy_initialize_functions): Return 'int'.
Check errors.
* python/py-gdb-readline.c (gdbpy_initialize_gdb_readline):
Check errors.
* python/py-inferior.c (gdbpy_initialize_inferior): Return 'int'.
Check errors.
* python/py-infthread.c (gdbpy_initialize_thread): Return 'int'.
Check errors.
* python/py-lazy-string.c (gdbpy_initialize_lazy_string): Return 'int'.
Check errors.
* python/py-objfile.c (gdbpy_initialize_objfile): Return 'int'.
Check errors.
* python/py-param.c (gdbpy_initialize_parameters): Return 'int'.
Check errors.
* python/py-progspace.c (gdbpy_initialize_pspace): Return 'int'.
Check errors.
* python/py-symbol.c (gdbpy_initialize_symbols): Return 'int'.
Check errors.
* python/py-symtab.c (gdbpy_initialize_symtabs): Return 'int'.
Check errors.
* python/py-type.c (gdbpy_initialize_types): Return 'int'.
Check errors.
* python/py-value.c (gdbpy_initialize_values): Return 'int'.
Check errors.
* python/python-internal.h (gdbpy_initialize_auto_load,
gdbpy_initialize_values, gdbpy_initialize_frames,
gdbpy_initialize_symtabs, gdbpy_initialize_commands,
gdbpy_initialize_symbols, gdbpy_initialize_symtabs,
gdbpy_initialize_blocks, gdbpy_initialize_types,
gdbpy_initialize_functions, gdbpy_initialize_pspace,
gdbpy_initialize_objfile, gdbpy_initialize_breakpoints,
gdbpy_initialize_finishbreakpoints,
gdbpy_initialize_lazy_string, gdbpy_initialize_parameters,
gdbpy_initialize_thread, gdbpy_initialize_inferior,
gdbpy_initialize_eventregistry, gdbpy_initialize_event,
gdbpy_initialize_py_events, gdbpy_initialize_stop_event,
gdbpy_initialize_signal_event,
gdbpy_initialize_breakpoint_event,
gdbpy_initialize_continue_event,
gdbpy_initialize_exited_event, gdbpy_initialize_thread_event,
gdbpy_initialize_new_objfile_event, gdbpy_initialize_arch):
Update.  Use CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION.
* python/python.c (gdb_python_initialized): New global.
(gdbpy_initialize_events): Return 'int'.  Check errors.
(_initialize_python): Check errors.  Set
gdb_python_initialized.

* python/py-finishbreakpoint.c (bpfinishpy_out_of_scope):
Decref the reslut of PyObject_CallMethod.

* python/py-event.c (gdbpy_initialize_event_generic): Return
early if PyType_Ready fails.

* python/py-type.c (make_fielditem): Add gdb_assert_not_reached
as 'default' in the switch.

* python/py-inferior.c (gdbpy_inferiors): Update.  Hoist
get_addr_from_python calls out of TRY_CATCH.
(infpy_write_memory, infpy_search_memory): Likewise.
* python/py-utils.c (get_addr_from_python): Return negative
value on error.  Use TRY_CATCH.
* python/python-internal.h (get_addr_from_python): Use
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION.

* gdb.base/maint.exp: Fix test for "mt expand-symtabs" to account for
-fdebug-types-section.

* python/py-event.c (evpy_emit_event): Decref the
result of PyObject_CallFunctionObjArgs.

* python/py-cmd.c (cmdpy_completer): Use iterator protocol.
Correctly decref.

* python/py-cmd.c (cmdpy_init): Decref 'ds_obj'.

* python/py-event.h (gdbpy_initialize_event_generic): Use
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION.
* python/py-evts.c (add_new_registry): Use
CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION.
* python/python-internal.h
(CPYCHECKER_NEGATIVE_RESULT_SETS_EXCEPTION): New macro.

* python/py-arch.c (archpy_disassemble): Update.
* python/py-type.c (typy_get_composite, typy_lookup_typename)
(typy_lookup_type): Use GDB_PY_HANDLE_EXCEPTION.
* python/py-utils.c (gdbpy_convert_exception): Return 'void'.
* python/python-internal.h (CPYCHECKER_SETS_EXCEPTION): New
macro.
(GDB_PY_HANDLE_EXCEPTION): Update.
(gdbpy_convert_exception): Update.  Use CPYCHECKER_SETS_EXCEPTION.

* python/python-internal.h (events_object_type): Remove.

    * python/py-event.h (evpy_emit_event): Use
        CPYCHECKER_STEALS_REFERENCE_TO_ARG.
        * python/python-internal.h (CPYCHECKER_STEALS_REFERENCE_TO_ARG):
        New macro.

* py-evtregistry.c (create_event_object): Decref
eventregistry_object if PyList_New fails.

* py-cmd.c (gdbpy_string_to_argv): Check result of
PyList_New.

* python/python.c (before_prompt_hook): Add cleanup to
decref 'hook'.

* python/py-function.c (fnpy_init): Decref result of
PyObject_GetAttrString.

* python/py-threadevent.c (get_event_thread): Use
CPYCHECKER_RETURNS_BORROWED_REF.
* python/python-internal.h (CPYCHECKER_RETURNS_BORROWED_REF):
New define.
(pspace_to_pspace_object, objfile_to_objfile_object)
(find_thread_object): Use it.

* python/py-arch.c (arch_object_type): Use
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-block.c (block_syms_iterator_object_type):
Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-bpevent.c (breakpoint_event_object_type):
Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-cmd.c (cmdpy_object_type): Use
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-continueevent.c (continue_event_object_type):
Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-event.h (GDBPY_NEW_EVENT_TYPE):
Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-events.h (thread_event_object_type):
Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-evtregistry.c (eventregistry_object_type): Use
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-exitedevent.c (exited_event_object_type):
Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-finishbreakpoint.c (finish_breakpoint_object_type):
Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-function.c (fnpy_object_type): Use
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-inferior.c (inferior_object_type, membuf_object_type):
Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-infthread.c (thread_object_type): Use
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-lazy-string.c (lazy_string_object_type):
Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-newobjfileevent.c (new_objfile_event_object_type):
Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-objfile.c (objfile_object_type): Use
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-param.c (parmpy_object_type):
Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-progspace.c (pspace_object_type):
Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-signalevent.c (signal_event_object_type):
Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-symtab.c (symtab_object_type, sal_object_type): Use
CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-type.c (type_object_type, field_object_type)
(type_iterator_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.
* python/py-internal.h (CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF): New
define.
(value_object_type, block_object_type, symbol_object_type)
(event_object_type, stop_event_object_type, breakpoint_object_type)
(frame_object_type): Use CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF.

2013-05-20  Andreas Tobler  <andreas@fgznet.ch>

        * Makefile.in (ALL_TARGET_OBS): Add ppcfbsd-tdep.o.
        (ALLDEPFILES): Add ppcfbsd-nat.c and ppcfbsd-tdep.c.

When reading CU, stay in DWO.  Be more tolerent of bad debug info.
For Fission.
* dwarf2read.c (struct dwarf2_per_cu_data): New member
reading_dwo_directly.
(struct signatured_type): New member dwo_unit.
(struct die_reader_specs): New member comp_dir.
(create_signatured_type_table_from_index): Use malloc for
all_type_units instead of objfile's obstack.
(create_all_type_units): Ditto.
(fill_in_sig_entry_from_dwo_entry): New function.
(add_type_unit): New function.
(lookup_dwo_signatured_type): New function.
(lookup_dwp_signatured_type): New function.
(lookup_signatured_type): New arg cu.  All callers updated.
(init_cu_die_reader): Initialize comp_dir.
(read_cutu_die_from_dwo): New arg stub_comp_dir.  All callers updated.
Change assert of matching type signatures to call error on mismatch.
(lookup_dwo_unit): Add assert.
(init_tu_and_read_dwo_dies): New function.
(init_cutu_and_read_dies): Call it.
(build_type_unit_groups): Handle case of no type unit groups created.
(hash_dwo_file, eq_dwo_file): Handle missing comp_dir.
(lookup_dwo_cutu): Tweak complaint.
(dwarf2_free_abbrev_table): Check for NULL abbrev_table.
(dwarf2_per_objfile_free): Free all_type_units.

bfd/elf64-aarch64.c: Remove dead code.

The relocs_copied member is never assigned a non-NULL value, so
this code does not appear to be used.

bfd/ChangeLog:

2013-05-20  Will Newton  <will.newton@linaro.org>

* elf64-aarch64.c (elf64_aarch64_link_hash_entry): Remove
relocs_copied member.
(elf64_aarch64_link_hash_newfunc): Remove initialization of
relocs_copied member.
(elf64_aarch64_copy_indirect_symbol): Remove code to copy
relocs_copied member.

Add missing empty line after var declarations in handle_unload_dll

gdb/ChangeLog:

        * windows-nat.c (handle_unload_dll): Add missing empty line.

* config/tc-ppc.c (md_apply_fix): Hoist code common to insn
and data fixups performing shift/high adjust/sign extension on
fieldval.  Sink fx_pcrel handling and checks.  Use fixP->fx_size
when writing data fixups rather than recalculating size.

[dwarf] Mark all functions as prototyped except C functions.

This makes sure that the types of the arguments are taken into account
when performing an inferior function call to a non-C (or C-like)
function.  In particular, this makes sure that the arguments are
appropriatly converted to the correct type.

For instance, on x86_64-linux, with the following Ada code:

   procedure Set_Float (F : Float) is
   begin
      Global_Float := F;
   end Set_Float;

The following sequence shows that Float arguments are incorrectly
passed (Ada's Float type is the equivalent of type "float" in C):

    (gdb) call set_float (2.0)
    (gdb) print global_float
    $1 = 0.0

Putting a breakpoint inside set_float to inspect the value of
register xmm0 gives the first hint of the problem:

    (gdb) p $xmm0
    $2 = (v4_float => (0 => 0.0, 2.0, 0.0, 0.0),
          v2_double => (0 => 2.0, 0.0),
    [...]

It shows that the argument was passed as a double.

The code responsible for doing appropriate type conversions
for the arguments (value_arg_coerce) found that our function
was not prototyped, and thus could not use typing information
for the arguments. Instead, it defaulted to the value of "set
coerce-float-to-double", which by default is true, to determine
the argument type.

This patch fixes the problem by setting the PROTOTYPE flag
for all functions of any language except C and Objective C.

gdb/ChangeLog:

        * dwarf2read.c (prototyped_function_p): New function.
        (read_subroutine_type): Use it.

gdb/testsuite/ChangeLog:

        * gdb.ada/float_param: New testcase.

De-indent example code in rs6000-aix-tdep.c (ARI fix)

This patch de-indents the code provided as a comment explaining
how the code declaring the ld_info32_desc and ld_info64_desc globals
was generated. The intent is to avoid an ARI warning about a macro
not starting at column zero of the line.

gdb/ChangeLog:

        * rs6000-aix-tdep.c: De-indent some example code provided
        as a comment.

daily update

*** empty log message ***

* elf32-vax.c (elf_vax_adjust_dynamic_symbol): Convert K&R
function definition.

*** empty log message ***

daily update

daily update

*** empty log message ***

2013-05-17  Edjunior Machado  <emachado@linux.vnet.ibm.com>

* ppc-linux-nat.c (ppc_linux_region_ok_for_hw_watchpoint): Check if the
region is ok for a hardware watchpoint using the new ptrace interface
on Power servers.

* NEWS: Mention new maintenance commands check-symtabs, and
expand-symtabs, and renamed check-psymtabs.
* psymtab.c (maintenance_check_psymtabs): Renamed from
maintenance_check_symtabs.  Only process already-expanded symbol
tables.
(_initialize_psymtab): Update.
* symmisc.c (maintenance_check_symtabs): New function.
(maintenance_expand_name_matcher): New function
(maintenance_expand_file_matcher): New function
(maintenance_expand_symtabs): New function.
(_initialize_symmisc): Add "mt check-symtabs" and "mt expand-symtabs"
commands.

doc/
* gdb.texinfo (Maintenance Commands): Update doc for
"maint check-psymtabs".  Add doc for "maint check-symtabs",
"maint expand-symtabs".

testsuite/
* gdb.base/maint.exp: Update test for "maint check-psymtabs".
Add tests for "maint check-symtabs", "maint expand-symtabs".

* gdb.base/maint.exp: Remove testing of individual maint command
help output.

* python/py-inferior.c (infpy_read_memory): Don't call
PyErr_SetString if PyObject_New fails.
* python/py-frame.c (frame_info_to_frame_object): Don't call
PyErr_SetString if PyObject_New fails.

Replace hardcoded -ldl with check for availability

2013-05-17  Pavel Chupin  <pavel.v.chupin@intel.com>

* acinclude.m4: Add check for dlopen in libdl.
* configure.ac: Ditto.
* configure: Regenerate.

* ia64-raw.tbl: Replace non-ASCII char.
* ia64-waw.tbl: Likewise.
* ia64-asmtab.c: Regenerate.

2013-05-17  Phil Muldoon  <pmuldoon@redhat.com>

* frame.c (frame_stash): Convert to htab.
(frame_addr_hash): New function.
(frame_addr_hash_eq): New function.
(frame_stash_create): Convert function to create
a hash table.
(frame_stash_add): Convert function to add an entry to a hash
table.
(frame_stash_find): Convert function to search the hash table.
(frame_stash_invalidate): Convert function to empty the hash
table.
(get_frame_id): Only add to stash if a frame_id is created.
(_initialize_frame): Call frame_stash_create.