Use 16-bit integer type for rl78 register pairs.

This patch changes rl78-tdep.c so that a 16-bit type is used for
register pairs instead of a pointer type as was previously the case.
This will cause these register pairs to be displayed as integers
instead of as a data address with a 0xf0000 ORed in.

E.g. registers ax, bc, de, and hl might now be displayed like this:

    (gdb) info registers ax bc de hl
    ax             0x6      6
    bc             0x0      0
    de             0x10c3   4291
    hl             0x108d   423

Whereas, before, they were displayed as follows:

    (gdb) info registers ax bc de hl
    ax             0xf0006  0xf0006
    bc             0xf0000  0xf0000
    de             0xf10c3  0xf10c3
    hl             0xf108d  0xf108d

These pairs are 16 bit quantities and should be displayed as such.
This change also affects the way that the banked register pairs are
displayed.  Within GDB, the banked register pairs are named bank0_rp0,
bank0_rp1, .., bank3_rp2, bank3_rp3.

However, these register pairs need to be used as addresses in DWARF
expressions.  I have added 16 pseudo registers corresponding to banked
register pairs.  These new pseudo registers are all hidden from the
user and have a pointer type.  Values from these registers are
intended to be used in DWARF expressions.  Therefore,
rl78_dwarf_reg_to_regnum() has been adjusted to return these new
pseudo register numbers.

I had a much simpler patch which only changed the types, but it showed
a number of regressions due to integer values from the banked register
pairs being used as part of an address expression.  This current patch
shows no regressions and now displays values of register pairs
correctly.

	* rl78-tdep.c ( RL78_BANK0_RP0_PTR_REGNUM, RL78_BANK0_RP1_PTR_REGNUM)
	(RL78_BANK0_RP2_PTR_REGNUM, RL78_BANK0_RP3_PTR_REGNUM)
	(RL78_BANK1_RP0_PTR_REGNUM, RL78_BANK1_RP1_PTR_REGNUM)
	(RL78_BANK1_RP2_PTR_REGNUM, RL78_BANK1_RP3_PTR_REGNUM)
	(RL78_BANK2_RP0_PTR_REGNUM, RL78_BANK2_RP1_PTR_REGNUM)
	(RL78_BANK2_RP2_PTR_REGNUM, RL78_BANK2_RP3_PTR_REGNUM)
	(RL78_BANK3_RP0_PTR_REGNUM, RL78_BANK3_RP1_PTR_REGNUM)
	(RL78_BANK3_RP2_PTR_REGNUM, RL78_BANK3_RP3_PTR_REGNUM):
	New constants.
	(rl78_register_type): Use a data pointer type for SP and
	new pseudo registers mentioned above.  Use a 16 bit integer
	type for all other register pairs.
	(rl78_register_name, rl78_g10_register_name): Update for
	new pseudo registers.
	(rl78_pseudo_register_read): Likewise.
	(rl78_pseudo_register_write): Likewise.
	(rl78_dwarf_reg_to_regnum): Return register numbers representing
	to the newly added pseudo registers.
2014-02-25  Hui Zhu  <hui@codesourcery.com>

	* target.h (target_ops): Fix TARGET_DEFAULT_RETURN of
	to_traceframe_info.
Fix a format issue of ChangeLog.
Adjust ia64_linux_xfer_partial following to_xfer_partial API change.

ia64-linux-nat.c no longer compiles because ia64_linux_xfer_partial
no longer matches the to_xfer_partial prototype.  This patch fixes
the problem by adjusting it accordingly.

gdb/ChangeLog:

        * ia64-linux-nat.c (ia64_linux_xfer_partial): Add function
        documentation.  Adjust prototype to match the target_ops
        to_xfer_partial method.  Adjust implementation accordingly.
Remove bogus vcvtps2ph variant.

We currently support version of vcvtps2ph with sae and only 1 register operand.
This version is encoded as if missing operand was equal to ymm0.
I didn't found any references to this variant in
http://download-software.intel.com/sites/default/files/managed/50/1a/319433-018.pdf
This patch removes it.

opcodes/

        * i386-opc.tbl: Remove wrong variant of vcvtps2ph
        * i386-tbl.h: Regenerate.
Fix dw2-icycle.exp -fsanitize=address GDB crash.

binutils readelf -wi:
 <4><a2>: Abbrev Number: 26 (DW_TAG_inlined_subroutine)
    <a3>   DW_AT_abstract_origin: <0x5a>
    <a7>   DW_AT_low_pc      : 0x400590
    <ab>   DW_AT_high_pc     : 0x4
    <af>   DW_AT_call_file   : 1
    <b0>   DW_AT_call_line   : 20
    <b1>   DW_AT_sibling     : <0xb8>
 <2><b8>: Abbrev Number: 35 (DW_TAG_inlined_subroutine)
    <b9>   DW_AT_abstract_origin: <0x5a>
    <bd>   DW_AT_low_pc      : 0x400590
    <c1>   DW_AT_high_pc     : 0x4
    <c5>   DW_AT_call_file   : 1
    <c6>   DW_AT_call_line   : 29

<b1> DW_AT_sibling points to the next DIE - but that DIE is 2 levels
upwards - definitely not a sibling.  This confuses GDB up to a crash:

==32143== ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6024000198ac at pc 0xb4d104 bp 0x7fff63e96e70 sp
0x7fff63e96e60
READ of size 1 at 0x6024000198ac thread T0
    #0 0xb4d103 in read_unsigned_leb128 (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb4d103)
    #1 0xb15f3c in peek_die_abbrev (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb15f3c)
    #2 0xb46185 in load_partial_dies (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb46185)
    #3 0xb103fb in process_psymtab_comp_unit_reader (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb103fb)
    #4 0xb0d2a9 in init_cutu_and_read_dies (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb0d2a9)
    #5 0xb1115f in process_psymtab_comp_unit (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb1115f)
    #6 0xb1235f in dwarf2_build_psymtabs_hard (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb1235f)
    #7 0xb05536 in dwarf2_build_psymtabs (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0xb05536)
    #8 0x86d5a5 in read_psyms (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0x86d5a5)
    #9 0x9b1c37 in require_partial_symbols (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0x9b1c37)
    #10 0x9bf2d0 in read_symbols (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0x9bf2d0)
    #11 0x9c014c in syms_from_objfile_1 (/home/jkratoch/redhat/gdb-clean/gdb/gdb+0x9c014c)

gdb/testsuite/
2014-02-25  Jan Kratochvil  <jan.kratochvil@redhat.com>

	Fix dw2-icycle.exp -fsanitize=address GDB crash.
	* gdb.dwarf2/dw2-icycle.S: Remove all DW_AT_sibling.

Message-ID: <20140224201011.GA28926@host2.jankratochvil.net>
PR gdb/16626

Fix auto-load 7.7 regression,
the regression affects any loading from /usr/share/gdb/auto-load .

5b2bf9471f1499bee578fcd60c05afe85794e280 is the first bad commit
commit 5b2bf9471f1499bee578fcd60c05afe85794e280
Author: Doug Evans <xdje42@gmail.com>
Date:   Fri Nov 29 21:29:26 2013 -0800
    Move .debug_gdb_script processing to auto-load.c.
    Simplify handling of auto-loaded objfile scripts.

Fedora 20 x86_64
$ gdb -q /usr/lib64/libgobject-2.0.so
Reading symbols from /usr/lib64/libglib-2.0.so.0.3800.2...Reading symbols from
/usr/lib/debug/usr/lib64/libglib-2.0.so.0.3800.2.debug...done.
done.
(gdb) _

Fedora Rawhide x86_64
$ gdb -q /usr/lib64/libgobject-2.0.so
Reading symbols from /usr/lib64/libglib-2.0.so...Reading symbols from
/usr/lib/debug/usr/lib64/libglib-2.0.so.0.3990.0.debug...done.
done.
warning: File "/usr/lib64/libglib-2.0.so.0.3990.0-gdb.py" auto-loading has been declined by your `auto-load safe-path'
set to "$debugdir:$datadir/auto-load:/usr/bin/mono-gdb.py".
To enable execution of this file add
        add-auto-load-safe-path /usr/lib64/libglib-2.0.so.0.3990.0-gdb.py
line to your configuration file "/home/jkratoch/.gdbinit".
To completely disable this security protection add
        set auto-load safe-path /
line to your configuration file "/home/jkratoch/.gdbinit".
For more information about this security protection see the
"Auto-loading safe path" section in the GDB manual.  E.g., run from the shell:
        info "(gdb)Auto-loading safe path"
(gdb) _

That is it tries to load "forbidden"
	/usr/lib64/libglib-2.0.so.0.3990.0-gdb.py
but it should load instead
	/usr/share/gdb/auto-load/usr/lib64/libglib-2.0.so.0.3990.0-gdb.py*
Although that is also not exactly this way, there does not exist any
	/usr/lib64/libglib-2.0.so.0.3990.0-gdb.py
despite regressed GDB says so.

gdb/
2014-02-24  Jan Kratochvil  <jan.kratochvil@redhat.com>

	PR gdb/16626
	* auto-load.c (auto_load_objfile_script_1): Change filename to
	debugfile.

gdb/testsuite/
2014-02-24  Jan Kratochvil  <jan.kratochvil@redhat.com>

	PR gdb/16626
	* gdb.base/auto-load-script: New file.
	* gdb.base/auto-load.c: New file.
	* gdb.base/auto-load.exp: New file.

Message-ID: <20140223212400.GA8831@host2.jankratochvil.net>
remove target_ignore

This removes target_ignore, which isn't used any more.

2014-02-25  Tom Tromey  <tromey@redhat.com>

	* target.h (target_ignore): Don't declare.
	* target.c (target_ignore): Remove.
PR gdb/16626

gdb/testsuite/
2014-02-25  Jan Kratochvil  <jan.kratochvil@redhat.com>

	PR gdb/16626
	* gdb.base/auto-load.exp: Fix out-of-srctree run.

Message-ID: <87k3cjt3jl.fsf@fleche.redhat.com>
daily update
Annotate comments for Doxygen.