[ARM] Support correctly spelled ARMv6KZ architecture names

2015-07-20  Matthew Wahab  <matthew.wahab@arm.com>

gas/
    * NEWS: Mention corrected spelling of armv6kz.
    * config/tc-arm.c (arm_cpus): Replace ARM_ARCH_V6ZK with
    ARM_ARCH_V6KZ.
    (arm_archs): Likewise. Also add "armv6kz" and "armv6kzt2".
    * doc/c-arm.texi: Replace "armv6zk" with "armv6kz".

gas/testsuite

    * gas/arm/attr-march-armv6kz.d: New.
    * gas/arm/attr-march-armv6kzt2.d: New.

include/opcode

    * arm.h (ARM_AEXT_V6ZK): Rename to ARM_AEXT_V6KZ.
    (ARM_AEXT_V6ZKT2): Rename to ARM_AEXT_V6KZT2.
    (ARM_ARCH_V6ZK): Rename to ARM_ARCH_V6KZ.
    (ARM_ARCH_V6ZKT2): Rename to ARM_ARCH_V6KZT2.

Automatic date update in version.in

gdb.ada/info_exc.exp: Adjust expected output in "info exception" test.

Since multi_line was moved to gdb.exp in a slightly stricter form,
The gdb.ada/info_exc.exp:info exceptions test has been failing.
This is because it now expects a new-line sequence at the end of
each argument given to multi_line, including ".*". But the intent
when writing the test was to signify "could-be-nothing-at-all".
As a result, the test fails on x86_64-linux with a runtime built as
recommended, because of that
extra new-line sequence.

gdb/testsuite/ChangeLog:

        * gdb.ada/info_exc.exp: Adjust "info exceptions" expected output.

Optimize erratum 843419 fix.

gold/ChangeLog:
* aarch64.cc (AArch64_insn_utilities::is_adr): New method.
(AArch64_insn_utilities::aarch64_adr_encode_imm): New method.
(AArch64_insn_utilities::aarch64_adrp_decode_imm): New method.
(E843419_stub): New sub-class of Erratum_stub.
(AArch64_relobj::try_fix_erratum_843419_optimized): New method.
(AArch64_relobj::section_needs_reloc_stub_scanning): Try optimized fix.
(AArch64_relobj::create_erratum_stub): Add 1 argument.
(Target_aarch64::scan_erratum_843419_span): Pass in adrp insn offset.

Update testsuite/pr18689.sh for older GCC

Older GCC, like 4.2, generates .debug_macinfo section instead of
.debug_macro section.  This patch updates testsuite/pr18689.sh to
support it.

Properly set arm-specific elf flags wrt hardfp.

gold/ChangeLog:
* arm.cc (Target_arm::do_adjust_elf_header): Set flags into view.

Clear SHF_COMPRESSED flag bit from input to output

For relocatable link, we should clear the SHF_COMPRESSED flag bit from
input group section.

PR gold/18689
* layout.cc (Layout::layout): Clear the SHF_COMPRESSED flag bit
from input group section for relocatable link.
* testsuite/Makefile.am (check_SCRIPTS): Add pr18689.sh.
(check_DATA): Add pr18689.stdout.
(MOSTLYCLEANFILES): Add pr18689a.o pr18689b.o.
(pr18689.stdout): New rule.
(pr18689a.o): Likewise.
(pr18689b.o): Likewise.
(pr18689.o): Likewise.
* testsuite/pr18689.c: New file.
* testsuite/pr18689.sh: Likewise.
* testsuite/Makefile.in: Regenerated.

Makefile.in (STABS_DOC_BUILD_INCLUDES): Add gdb-cfg.texi, GDBvn.texi.

gdb/doc/ChangeLog:

* Makefile.in (STABS_DOC_BUILD_INCLUDES): Add gdb-cfg.texi, GDBvn.texi.

Remove warning about references from shared objects to hidden symbols.

gold/
PR gold/15574
* resolve.cc (Symbol_table): Remove warning about references
from shared objects to hidden symbols.
* testsuite/Makefile.am (hidden_test): Add hidden_test.syms.
* testsuite/Makefile.in: Regenerate.
* testsuite/hidden_test.sh: Check dynamic symbol table; update
expected error messages.

Fix ARI warnings to nat/aarch64-linux-hw-point.{c,h}

This patch is to fix two ARI warnings for nat/aarch64-linux-hw-point.{c,h}.

gdb:

2015-07-20  Yao Qi  <yao.qi@linaro.org>

* nat/aarch64-linux-hw-point.c (aarch64_handle_unaligned_watchpoint):
Re-indent the code.
* nat/aarch64-linux-hw-point.h: Use ULONGEST rather than
"unsigned long long".

Make binutils abort message GDB friendly

We used to generate abort messages like:

internal error, aborting at .../bfd/elf64-x86-64.c line 1554 in elf_x86_64_check_relocs

We can't cut and paste "file line ???" to GDB.  This patch changes those
abort messages to

internal error, aborting at .../bfd/elf64-x86-64.c:1554 in elf_x86_64_check_relocs

so that we can cut and paste "file:???" to GDB.

bfd/

* bfd.c (_bfd_abort): Replace " line " with ":" in output
message.

gas/

* messages.c (as_assert): Replace " line " with ":" in output
message.
(as_abort): Likewise.

ld/

* ldmisc.c (ld_abort): Replace " line " with ":" in output
message.

Regen two files

bfd/
* po/SRC-POTFILES.in: Regenerate.
binutils/
* doc/Makefile.in: Regenerate.

ALIGN change affects cris scripts

More fallout from a2c59f28.  This one could have been fixed by simply
using ". = ALIGN (ABSOLUTE (.), 2);" but it's nicer to align the
section.

* emulparams/criself.sh (INIT_ADDR, FINI_ADDR): Define.
(INIT_START, FINI_START): Don't ALIGN.
* scriptempl/elf.sc (.init, .fini): Apply INIT_ADDR/FINI_ADDR.

ALIGN change affects standard scripts

a2c59f28 changed the way the unary ALIGN behaved inside output sections,
resulting in cris-elf testsuite regressions.  This patch pads out .bss
in the same manner as it was prior to the ALIGN change.

* scripttempl/elf.sc (.ldata, .bss): Align absolute value of dot.
* ldexp.c (is_align_conditional): Handle binary ALIGN.
(exp_fold_tree_1): Move code setting SEC_KEEP for assignments to
dot inside output sections.  Handle absolute expressions.

Automatic date update in version.in

Automatic date update in version.in

dwarf2read: Allow SEC_ALLOC sections to be located at address 0.

GDB already allows statically initialized variables, located in
SEC_LOAD sections, to be placed at address 0.  This change allows
uninitialized variables (which are in SEC_ALLOC sections) to be placed
address 0 as well.

gdb/ChangeLog:

* dwarf2read.c (dwarf2_locate_sections): Allow has_section_at_zero
to be set for SEC_ALLOC sections too.

Automatic date update in version.in

Move common aarch64 HW breakpoint/watchpoint code to nat/

When I look at test fails related to watchpoint on aarch64-linux,
I find there are some code duplicates between GDB and GDBserver.
This patch is to move some of them to a nat/aarch64-linux-hw-point.{h,c}.

The only change I do is about the dr_changed_t typedef, which was
ULONGEST in GDB and 'unsigned long long' in GDBserver.  Each bit
of dr_changed_t represents a status of each HW breakpoint or
watchpoint register, and the max number of HW breakpoint or watchpoint
registers is 16, so the width of 'unsigned long long' is sufficient.

gdb:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

* Makefile.in (HFILES_NO_SRCDIR): Add
nat/aarch64-linux-hw-point.h.
(aarch64-linux-hw-point.o): New rule.
* nat/aarch64-linux-hw-point.h: New file.
* nat/aarch64-linux-hw-point.c: New file.
* aarch64-linux-nat.c: Include nat/aarch64-linux-hw-point.h.
(AARCH64_HBP_MAX_NUM): Move to nat/aarch64-linux-hw-point.h.
(AARCH64_HWP_MAX_NUM, AARCH64_HBP_ALIGNMENT): Likewise.
(AARCH64_HWP_ALIGNMENT): Likewise.
(AARCH64_HWP_MAX_LEN_PER_REG): Likewise.
(AARCH64_DEBUG_NUM_SLOTS, AARCH64_DEBUG_ARCH): Likewise.
(AARCH64_DEBUG_ARCH_V8, DR_MARK_ALL_CHANGED): Likewise.
(DR_MARK_N_CHANGED, DR_CLEAR_CHANGED): Likewise.
(DR_HAS_CHANGED, DR_N_HAS_CHANGE): Likewise.
(aarch64_num_bp_regs, aarch64_num_wp_regs): Likewise.
(struct aarch64_debug_reg_state): Likewise.
(struct arch_lwp_info): Likewise.
(aarch64_linux_set_debug_regs): Likewise.
(aarch64_notify_debug_reg_change): Remove static.
(aarch64_align_watchpoint): Likewise.
(DR_CONTROL_ENABLED, DR_CONTROL_LENGTH): Likewise.
(aarch64_watchpoint_length): Likewise.
(aarch64_point_encode_ctrl_reg): Likewise
(aarch64_point_is_aligned): Likewise.
(aarch64_dr_state_insert_one_point): Likewise.
(aarch64_dr_state_remove_one_point): Likewise.
(aarch64_handle_breakpoint): Likewise.
(aarch64_handle_aligned_watchpoint): Likewise.
(aarch64_handle_unaligned_watchpoint): Likewise.
(aarch64_handle_watchpoint): Likewise.
* config/aarch64/linux.mh (NAT_FILE): Add
aarch64-linux-hw-point.o.

gdb/gdbserver:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

* Makefile.in (aarch64-linux-hw-point.o): New rule.
* configure.srv (srv_tgtobj): Append aarch64-linux-hw-point.o.
* linux-aarch64-low.c: Include nat/aarch64-linux-hw-point.h.
(AARCH64_HBP_MAX_NUM): Move to nat/aarch64-linux-hw-point.h.
(AARCH64_HWP_MAX_NUM, AARCH64_HBP_ALIGNMENT): Likewise.
(AARCH64_HWP_ALIGNMENT): Likewise.
(AARCH64_HWP_MAX_LEN_PER_REG): Likewise.
(AARCH64_DEBUG_NUM_SLOTS, AARCH64_DEBUG_ARCH): Likewise.
(aarch64_num_bp_regs, aarch64_num_wp_regs): Likewise.
(AARCH64_DEBUG_ARCH_V8, DR_MARK_ALL_CHANGED): Likewise.
(DR_MARK_N_CHANGED, DR_CLEAR_CHANGED): Likewise.
(DR_HAS_CHANGED, DR_N_HAS_CHANGE): Likewise.
(struct aarch64_debug_reg_state): Likewise.
(struct arch_lwp_info): Likewise.
(aarch64_align_watchpoint): Likewise.
(DR_CONTROL_ENABLED, DR_CONTROL_LENGTH): Likewise.
(aarch64_watchpoint_length): Likewise.
(aarch64_point_encode_ctrl_reg): Likewise
(aarch64_point_is_aligned): Likewise.
(aarch64_align_watchpoint): Likewise.
(aarch64_linux_set_debug_regs):
(aarch64_dr_state_insert_one_point): Likewise.
(aarch64_dr_state_remove_one_point): Likewise.
(aarch64_handle_breakpoint): Likewise.
(aarch64_handle_aligned_watchpoint): Likewise.
(aarch64_handle_unaligned_watchpoint): Likewise.
(aarch64_handle_watchpoint): Likewise.

Pass aarch64_debug_reg_state to functions

Some functions on handling HW watchpoint in GDB and GDBserver looks the
same except the code getting debug register state from current inferior.
In GDB, we get debug register state like this:

  state = aarch64_get_debug_reg_state (ptid_get_pid (inferior_ptid));

while in GDBserver, we get debug register state like this:

  state = aarch64_get_debug_reg_state ();

This patch is to move two lines above out of some functions, and pass
aarch64_debug_reg_state to these functions, in this way, these functions
are the same, and can be moved to a common place.

gdb:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

* aarch64-linux-nat.c (aarch64_handle_breakpoint): Add argument
state and don't call aarch64_get_debug_reg_state.  All callers
update.
(aarch64_linux_insert_hw_breakpoint): Call
aarch64_get_debug_reg_state earlier.
(aarch64_linux_remove_hw_breakpoint): Likewise.
(aarch64_handle_aligned_watchpoint): Add argument state and
don't call aarch64_get_debug_reg_state.  All callers update.
(aarch64_handle_unaligned_watchpoint): Likewise.
(aarch64_handle_watchpoint): Add argument state.
(aarch64_linux_insert_watchpoint): Call aarch64_get_debug_reg_state
earlier.
(aarch64_linux_remove_watchpoint): Likewise.

gdb/gdbserver:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

* linux-aarch64-low.c (aarch64_handle_breakpoint): Add argument state
and don't aarch64_get_debug_reg_state.  All callers update.
(aarch64_handle_aligned_watchpoint): Likewise.
(aarch64_handle_unaligned_watchpoint): Likewise.
(aarch64_handle_watchpoint): Likewise.
(aarch64_insert_point): Call aarch64_get_debug_reg_state earlier.
(aarch64_remove_point): Likewise.

Use debug_printf to print debug message

Some functions in aarch64-linux-nat.c and linux-aarch64-low.c looks
the same except for the code printing debug message.  In GDB, we use
fprintf_unfiltered (gdb_stdlog, ...) while in GDBserver, we use
fprintf (stderr, ...).  This patch is to change them to use debug_printf
so that these functions are the same, and I can move them to a common
place in the following patch.

gdb:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

* aarch64-linux-nat.c (aarch64_show_debug_reg_state): Use
debug_printf.
(aarch64_handle_unaligned_watchpoint): Likewise.

gdb/gdbserver:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

* linux-aarch64-low.c (aarch64_show_debug_reg_state): Use
debug_printf.
(aarch64_handle_unaligned_watchpoint): Likewise.

int -> enum target_hw_bp_type in aarch64-linux-nat.c

This patch is to use 'enum target_hw_bp_type' instead of int for
breakpoint type, in order to make some functions in GDB and
GDBserver looks similar.

gdb:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

* aarch64-linux-nat.c (aarch64_dr_state_insert_one_point): Change
argument type's type to 'enum target_hw_bp_type'.
(aarch64_dr_state_remove_one_point): Likewise.
(aarch64_handle_breakpoint): Likewise.
(aarch64_linux_insert_hw_breakpoint): Likewise.
(aarch64_linux_remove_hw_breakpoint): Likewise.
(aarch64_handle_aligned_watchpoint): Likewise.

Call ptid_get_pid instead of get_thread_id in aarch64_linux_get_debug_reg_capacity

aarch64_linux_get_debug_reg_capacity is called by
aarch64_linux_child_post_startup_inferior, and argument ptid is created in
inf-ptrace.c:inf_ptrace_create_inferior,

  /* On some targets, there must be some explicit actions taken after
     the inferior has been started up.  */
  target_post_startup_inferior (pid_to_ptid (pid));

so in aarch64_linux_get_debug_reg_capacity, we can get pid by ptid_get_pid,
and don't need to use get_thread_id.

gdb:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

* aarch64-linux-nat.c (aarch64_linux_get_debug_reg_capacity): Call
ptid_get_pid instead of get_thread_id.

[AArch64] Sort TLS reloc types alphabetically

Fix using uninitialised values

We did a code refacotr here
https://sourceware.org/ml/gdb-patches/2013-11/msg00063.html

> (get_current_thread): New function, factored out from ...
> (add_current_inferior_and_thread): ... this.  Adjust.
>
>@@ -3332,18 +3371,8 @@ add_current_inferior_and_thread (char *wait_status)
>
>   inferior_ptid = null_ptid;
>
>-  /* Now, if we have thread information, update inferior_ptid.  First
>-     if we have a stop reply handy, maybe it's a T stop reply with a
>-     "thread" register we can extract the current thread from.  If
>-     not, ask the remote which is the current thread, with qC.  The
>-     former method avoids a roundtrip.  Note we don't use
>-     remote_parse_stop_reply as that makes use of the target
>-     architecture, which we haven't yet fully determined at this
>-     point.  */
>-  if (wait_status != NULL)
>-    ptid = stop_reply_extract_thread (wait_status);
>-  if (ptid_equal (ptid, null_ptid))
>-    ptid = remote_current_thread (inferior_ptid);
>+  /* Now, if we have thread information, update inferior_ptid.  */
>+  ptid = get_current_thread (wait_status);

but after the refactor, local variable ptid is used without
initialisation.  However, before this change, ptid is initialised to
null_ptid.  This error can be found by valgrind too...

==3298==    at 0x6B99BA: ptid_equal (ptid.c:80)
==3298==    by 0x4C67FF: get_current_thread (remote.c:3484)
==3298==    by 0x4C6951: add_current_inferior_and_thread (remote.c:3511)
==3298==    by 0x4C762C: extended_remote_create_inferior (remote.c:8506)
==3298==    by 0x5A5312: run_command_1 (infcmd.c:606)
==3298==    by 0x68B4FB: execute_command (top.c:463)
==3298==    by 0x5C7214: command_handler (event-top.c:494)
==3298==    by 0x5C78A3: command_line_handler (event-top.c:692)
==3298==    by 0x6DEB57: rl_callback_read_char (callback.c:220)
==3298==    by 0x5C7278: rl_callback_read_char_wrapper (event-top.c:171)
==3298==    by 0x5C72C2: stdin_event_handler (event-top.c:432)
==3298==    by 0x5C6194: gdb_wait_for_event (event-loop.c:834)

This patch initialises local variable ptid to null in get_current_thread.
We don't need to initialise ptid in add_current_inferior_and_thread,
so this patch also removes the ptid initialisation.

gdb:

2015-07-17  Yao Qi  <yao.qi@linaro.org>

* remote.c (get_current_thread): Initialise ptid to null_ptid.
(add_current_inferior_and_thread): Don't initialise ptid.

Automatic date update in version.in

stabs.texinfo: @include gdb-cfg.texi.

gdb/doc/ChangeLog:

* stabs.texinfo: @include gdb-cfg.texi.

Fix gdb.arch/i386-biarch-core.exp FAIL on i386.

This new test fails on i686 buildbot slaves,

(gdb) core-file /home/gdb-buildbot-2/fedora-x86-64-2/fedora-i686/build/gdb/testsuite/gdb.arch/i386-biarch-core.core
"/home/gdb-buildbot-2/fedora-x86-64-2/fedora-i686/build/gdb/testsuite/gdb.arch/i386-biarch-core.core"
is not a core dump: File format not recognized
(gdb) FAIL: gdb.arch/i386-biarch-core.exp: core-file

There are two problems:

(1) The testcase did not really test if elf64-i386 is supported by GDB (BFD).
That was OK for a Fedora testcase but I forgot about it when submitting it
upstream.

I haven't really verified if the GNU target is elf64-little but it seems so,
no other one seems suitable from:
elf32-x86-64
elf64-big
elf64-k1om
elf64-l1om
elf64-little
elf64-x86-64
pei-x86-64

(2) The output of the "core-file" command itself can be arbitrary as the
elf64-i386 file with x86_64 registers is really broken; but that does not
matter much, important is the following test whether core file memory is
readable.
./configure --enable-64-bit-bfd
(gdb) core-file /home/jkratoch/redhat/gdb-test-build32-plus64/gdb/testsuite/gdb.arch/i386-biarch-core.core^M
warning: Couldn't find general-purpose registers in core file.^M
Failed to read a valid object file image from memory.^M
warning: Couldn't find general-purpose registers in core file.^M
#0  <unavailable> in ?? ()^M
(gdb) FAIL: gdb.arch/i386-biarch-core.exp: core-file
x/i 0x400078^M
   0x400078:    hlt    ^M
(gdb) PASS: gdb.arch/i386-biarch-core.exp: .text is readable

I do not know much dejagnu but I expect 'istarget' tests against the site.exp
'target_triplet' content which is set to the primary GDB target
(--target=...).

GDB is normally never configured for primary target elf64-i386, I think BFD
does not know such explicit target, it gets recognized as elf64-little.

In fact many testfiles of the GDB testsuite are wrong as they require
'istarget' (therefore primary GDB target) even for just loading arch specific
files which would be sufficient with secondary target (--enable-targets=...)
support.

This my new patch removes this 'istarget' check as it is IMO unrelated to what
we need to test.  Although you are right we do 'x/i' and test for 'hlt' so
I think we should test also for available 'set architecture i386'.
We could also test by 'x/bx' instead of 'x/i' to avoid such additional
test/requirement.

This testcase comes from a different bug from 2009:
https://bugzilla.redhat.com/show_bug.cgi?id=457187
http://pkgs.fedoraproject.org/cgit/gdb.git/commit/?id=94cd124608bf0dd359cb48a710800d72c21b30c3

That bug has been fixed in the meantime but the same testcase was reproducing
this new different bug - internal error regression - so I submitted it.

We can remove the "x/bx $address" test but it was useful for the previous bug
from 2009 as that time the internal error regression did not happen, just the
core file was not recognized (which would not be detected by the proposed
ignoring of the "core-file" command output) and so the core file was not
available.  That can be tested by the "x/bx $address" test.

gdb/testsuite/ChangeLog
2015-07-16  Jan Kratochvil  <jan.kratochvil@redhat.com>

* gdb.arch/i386-biarch-core.exp: Replace istarget
by "complete set gnutarget". Remove expectation for the "core-file"
command.

Updates the ARM disassembler's output of floating point constants to include the actual floating point value.

opcodes * arm-dis.c (print_insn_coprocessor): Added support for quarter
float bitfield format.
(coprocessor_opcodes): Changed VFP vmov reg,immediate to use new
quarter float bitfield format.

tests * gas/arm/vfpv3-const-conv.d: Update expected result due to change
of comment for vmov reg,immediate with VFP coprocessor.

Correct readelf dynamic section buffer overlow test

PR binutils/18672
* readelf.c (get_32bit_dynamic_section): Correct buffer limit test.
(get_64bit_dynamic_section): Likewise.

[AArch64][3/3] LD support BFD_RELOC_AARCH64_TLSLD_ADR_PREL21

[AArch64][2/3] GAS support BFD_RELOC_AARCH64_TLSLD_ADR_PREL21

[AArch64][1/3] Add R_AARCH64_P32_TLSLD_ADR_PREL21 in elf header

[ARM] Add crypto-neon-fp-armv8.1 as an fpu option

2015-07-16  Matthew Wahab  <matthew.wahab@arm.com>

gas/
  * config/tc-arm.c (arm_fpus): Add crypto-neon-fp-armv8.1.
  * doc/c-arm.texi (-mfpu=): Likewise.  Correct the entry for
  neon-fp-armv8.1.

[ARM] Make human parsing of "processor does not support instruction in mode" error messages easier

2015-07-16  James Greenhalgh  <james.greenhalgh@arm.com>

      gas/
* config/tc-arm.c (md_assemble): Rephrase the "selected processor does
not support ARM mode" error messages.

      gas/testsuite/
* gas/arm/arch7em-bad.l: Update expected errors.
* gas/arm/arch7m-bad.l: Likewise.
* gas/arm/arm-idiv-bad.l: Likewise.
* gas/arm/arm7-bad.l: Likewise.
* gas/arm/armv1-bad.l: Likewise.
* gas/arm/thumb-w-bad.l: Likewise.

[AArch64] Mark single precision pseudo registers unavailable if invalid

I noticed two failure in gdb.trace/mi-trace-frame-collected.exp:

FAIL: gdb.trace/mi-trace-frame-collected.exp: live:
  -trace-frame-collected (register)
FAIL: gdb.trace/mi-trace-frame-collected.exp: tfile:
  -trace-frame-collected (register)

In these cases, we are not collecting registers so the MI command
-trace-frame-collected should only give us the value of the PC.
However, it also gives us all of the single precision pseudo registers,
initialized with 0x0.

We can reproduce this error by simply issuing the
'maint print cooked-register' when no inferior is connected:

~~~
...
(gdb) maint print cooked-register
 Name         Nr  Rel Offset    Size  Type            Cooked value
 x0            0    0      0       8 long            <unavailable>
 x1            1    1      8       8 long            <unavailable>
 ...
 d30         130   62   1540       8 *1              <unavailable>
 d31         131   63   1548       8 *1              <unavailable>
 s0          132   64   1556       4 *1              0x00000000
 s1          133   65   1560       4 *1              0x00000000
 s2          134   66   1564       4 *1              0x00000000
 ...
 s28         160   92   1668       4 *1              0x00000000
 s29         161   93   1672       4 *1              0x00000000
 s30         162   94   1676       4 *1              0x00000000
 s31         163   95   1680       4 *1              0x00000000
 h0          164   96   1684       2 *1              <unavailable>
 h1          165   97   1686       2 *1              <unavailable>
 h2          166   98   1688       2 *1              <unavailable>
 ...
~~~

It turns out GDB does not check if S registers are valid before returning
a value for them.  It should return <unavailable> in this case.

gdb/ChangeLog:

* aarch64-tdep.c (aarch64_pseudo_read_value): Mark S register as
unavailable if invalid.

Automatic date update in version.in

Revert the previous 7 commits of: Validate binary before use

ddc98fbf2fd9e244a215a4d09e559180dc573a14 Create empty nat/linux-maps.[ch] and common/target-utils.[ch]
6e5b4429db0d66e2d0b27e1bcfe4709f3dae73ed Move gdb_regex* to common/
f7af1fcd759fa126612018a5916cf808df7bb8bc Prepare linux_find_memory_regions_full & co. for move
9904185cfde13d6c6849f1f042c8e3b74974cf08 Move linux_find_memory_regions_full & co.
700ca40f6fc1addd7238f4ab57f76c095ad3c99f gdbserver build-id attribute generator
ca5268b6be265580b91ef75c1a1a9815f581ae42 Validate symbol file using build-id
0a94970d663a053c523f23ac0d71deb25a77f709 Tests for validate symbol file using build-id

gdb/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

Revert the previous 6 commits:
Create empty nat/linux-maps.[ch] and common/target-utils.[ch].
Move gdb_regex* to common/
Prepare linux_find_memory_regions_full & co. for move
Move linux_find_memory_regions_full & co.
gdbserver build-id attribute generator
Validate symbol file using build-id

gdb/gdbserver/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

Revert the previous 3 commits:
Move gdb_regex* to common/
Move linux_find_memory_regions_full & co.
gdbserver build-id attribute generator

gdb/doc/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

Revert the previous 2 commits:
gdbserver build-id attribute generator
Validate symbol file using build-id

gdb/testsuite/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

Revert the previous commit:
Tests for validate symbol file using build-id.

Tests for validate symbol file using build-id

New testcase.

gdb/testsuite/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com

Tests for validate symbol file using build-id.
* gdb.base/solib-mismatch-lib.c: New file.
* gdb.base/solib-mismatch-libmod.c: New file.
* gdb.base/solib-mismatch.c: New file.
* gdb.base/solib-mismatch.exp: New file.

Validate symbol file using build-id

Consumer part of the "build-id" attribute.

gdb/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com
    Jan Kratochvil  <jan.kratochvil@redhat.com>

Validate symbol file using build-id.
* NEWS (Changes since GDB 7.10): Add 'set validate-build-id'
and 'show validate-build-id'.  Add build-id attribute.
* solib-darwin.c (_initialize_darwin_solib): Assign validate value.
* solib-dsbt.c (_initialize_dsbt_solib): Ditto.
* solib-frv.c (_initialize_frv_solib): Ditto.
* solib-spu.c (set_spu_solib_ops): Ditto.
* solib-svr4.c: Include rsp-low.h.
(NOTE_GNU_BUILD_ID_NAME): New define.
(svr4_validate): New function.
(svr4_copy_library_list): Duplicate field build_id.
(library_list_start_library): Parse 'build-id' attribute.
(svr4_library_attributes): Add 'build-id' attribute.
(_initialize_svr4_solib): Assign validate value.
* solib-target.c (solib.h): Include.
(_initialize_solib_target): Assign validate value.
* solib.c (validate_build_id, show_validate_build_id): New.
(solib_map_sections): Use ops->validate.
(clear_so): Free build_id.
(default_solib_validate): New function.
(_initialize_solib): Add "validate-build-id".
* solib.h (default_solib_validate): New declaration.
* solist.h (struct so_list): New fields 'build_idsz' and 'build_id'.
(target_so_ops): New field 'validate'.

gdb/doc/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

* gdb.texinfo (Files): Add 'set validate-build-id'
and 'show validate-build-id'.

gdbserver build-id attribute generator

Producer part of the new "build-id" XML attribute.

gdb/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com
    Jan Kratochvil  <jan.kratochvil@redhat.com>

gdbserver build-id attribute generator.
* features/library-list-svr4.dtd (library-list-svr4): New
'build-id' attribute.

gdb/doc/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com
    Jan Kratochvil  <jan.kratochvil@redhat.com>

gdbserver build-id attribute generator.
* gdb.texinfo (Library List Format for SVR4 Targets): Add
'build-id' in description, example, new attribute in dtd.

gdb/gdbserver/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com
    Jan Kratochvil  <jan.kratochvil@redhat.com>

gdbserver build-id attribute generator.
* linux-low.c (nat/linux-maps.h, search.h, rsp-low.h): Include.
(ElfXX_Ehdr, ElfXX_Phdr, ElfXX_Nhdr): New.
(ELFXX_FLD, ELFXX_SIZEOF, ELFXX_ROUNDUP, BUILD_ID_INVALID): New.
(find_phdr): New.
(get_dynamic): Use find_pdhr to traverse program headers.
(struct mapping_entry, mapping_entry_s, free_mapping_entry_vec)
(compare_mapping_entry_range, struct find_memory_region_callback_data)
(read_build_id, find_memory_region_callback, lrfind_mapping_entry)
(get_hex_build_id): New.
(linux_qxfer_libraries_svr4): Add optional build-id attribute
to reply XML document.

Move linux_find_memory_regions_full & co.

This should be just a move with no changes.

gdb/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com
    Jan Kratochvil  <jan.kratochvil@redhat.com>

Move linux_find_memory_regions_full & co.
* linux-tdep.c (nat/linux-maps.h): Include.
(gdb_regex.h): Remove the include.
(enum filterflags, struct smaps_vmflags, read_mapping, decode_vmflags)
(mapping_is_anonymous_p, dump_mapping_p): Moved to nat/linux-maps.c.
(linux_find_memory_region_ftype): Moved typedef to nat/linux-maps.h.
(linux_find_memory_regions_full): Moved definition to nat/linux-maps.c.
* nat/linux-maps.c: Include ctype.h, target/target-utils.h, gdb_regex.h
and target/target.h.
(struct smaps_vmflags, read_mapping, decode_vmflags)
(mapping_is_anonymous_p, dump_mapping_p): Move from linux-tdep.c.
(linux_find_memory_regions_full): Move from linux-tdep.c.
* nat/linux-maps.h (read_mapping): New declaration.
(linux_find_memory_region_ftype, enum filterflags): Moved from
linux-tdep.c.
(linux_find_memory_regions_full): New declaration.
* target.c (target/target-utils.h): Include.
(read_alloc_pread_ftype): Moved typedef to target/target-utils.h.
(read_alloc, read_stralloc_func_ftype, read_stralloc): Moved
definitions to target/target-utils.c.
* target.h (target_fileio_read_stralloc): Move it to target/target.h.
* target/target-utils.c (read_alloc, read_stralloc): Move definitions
from target.c.
* target/target-utils.h (read_alloc_pread_ftype): New typedef.
(read_alloc): New declaration.
(read_stralloc_func_ftype): New typedef.
(read_stralloc): New declaration.
* target/target.h (target_fileio_read_stralloc): Move it from target.h.

gdb/gdbserver/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com
    Jan Kratochvil  <jan.kratochvil@redhat.com>

* target.c: Include target/target-utils.h and fcntl.h.
(target_fileio_read_stralloc_1_pread, target_fileio_read_stralloc_1)
(target_fileio_read_stralloc): New functions.

Prepare linux_find_memory_regions_full & co. for move

Prepare code for move into gdb/common/.

gdb/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com
    Jan Kratochvil  <jan.kratochvil@redhat.com>

Prepare linux_find_memory_regions_full & co. for move.
* linux-tdep.c (linux_find_memory_region_ftype): Comment.
(linux_find_memory_regions_full): Change signature and prepare
for moving to linux-maps.
(linux_find_memory_regions_data): Rename field 'obfd' to 'data'.
(linux_find_memory_regions_thunk): New.
(linux_find_memory_regions_thunk): Use 'data' field instead of 'obfd'.
(linux_find_memory_regions_gdb): New.
(linux_find_memory_regions): Rename argument 'obfd' to 'func_data'.
(linux_make_mappings_corefile_notes): Use
linux_find_memory_regions_gdb.
* target.c (read_alloc_pread_ftype): New typedef.
(target_fileio_read_alloc_1_pread): New function.
(read_alloc): Refactor from target_fileio_read_alloc_1.
(read_stralloc_func_ftype): New typedef.
(target_fileio_read_alloc_1): New implementation. Use read_alloc.
(read_stralloc): Refactored from target_fileio_read_stralloc.
(target_fileio_read_stralloc): New implementation, use read_stralloc.

Move gdb_regex* to common/

Later patches need regex support also in gdbserver.

gdb/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

* Makefile.in (HFILES_NO_SRCDIR): Change gdb_regex.h to
common/gdb_regex.h.
(COMMON_OBS): Add gdb_regex.o.
(gdb_regex.o): New.
* common/common.m4 (GDB_AC_COMMON): Add gdb_use_included_regex,
--without-included-regex and USE_INCLUDED_REGEX.
* common/gdb_regex.c: New file from utils.c functions.
* common/gdb_regex.h: Move it here from gdb_regex.h, update include
file wrapping define name.
* configure: Rebuilt.
* configure.ac (gdb_use_included_regex, --without-included-regex)
(USE_INCLUDED_REGEX): Move them to common/common.m4.
* gdb_regex.h: Move it to common/gdb_regex.h.
* utils.c: Remove include gdb_regex.h.
(do_regfree_cleanup, make_regfree_cleanup, get_regcomp_error)
(compile_rx_or_error): Move them to common/gdb_regex.c.

gdb/gdbserver/ChangeLog
2015-07-15  Jan Kratochvil  <jan.kratochvil@redhat.com>

* Makefile.in (OBS): Add gdb_regex.o.
(gdb_regex.o): New.
* config.in: Rebuilt.
* configure: Rebuilt.

Create empty nat/linux-maps.[ch] and common/target-utils.[ch]

Prepare new files for later move.

gdb/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com
    Jan Kratochvil  <jan.kratochvil@redhat.com>

Create empty nat/linux-maps.[ch] and common/target-utils.[ch].
* Makefile.in (HFILES_NO_SRCDIR); Add nat/linux-maps.h,
common/target-utils.h.
(COMMON_OBS): Add target-utils.o.
(linux-maps.o, target-utils.o): New.
* target/target-utils.c: New file.
* target/target-utils.h: New file.
* config/i386/linux.mh (NATDEPFILES): Add linux-maps.o.
* config/i386/linux64.mh (NATDEPFILES): Ditto.
* nat/linux-maps.c: New file.
* nat/linux-maps.h: New file.

gdb/gdbserver/ChangeLog
2015-07-15  Aleksandar Ristovski  <aristovski@qnx.com
    Jan Kratochvil  <jan.kratochvil@redhat.com>

Create empty nat/linux-maps.[ch] and common/target-utils.[ch].
* Makefile.in (OBS): Add target-utils.o.
(linux-maps.o, target-utils.o): New.
* configure.srv (srv_linux_obj): Add linux-maps.o.

Unbreak nios2-*-linux* GDB testing.

2015-07-15  Sandra Loosemore  <sandra@codesourcery.com>

gdb/testsuite/
* gdb.base/sigaltstack.exp (finish_test): Add kfail for
nios2-*-linux*.
* gdb.base/sigbpt.exp (stepi_out): Likewise.
* gdb.base/siginfo.exp: Likewise.
* gdb.base/sigstep.exp (advance, advancei): Likewise.

Make x86 Linux assembler default to gABI compliant

The default compression is gABI compliant now.  This patch makes the
x86 Linux assembler default to gABI compliant.

* config/tc-i386.c (flag_compress_debug): Replace
COMPRESS_DEBUG_GNU_ZLIB with COMPRESS_DEBUG_GABI_ZLIB.

Move ChangeLog entry to gdbserver

gdb/gdbserver/ChangeLog:

* linux-aarch64-low.c (aarch64_supports_range_stepping): New
function, return 1.
(the_low_target): Install it.

[GDBserver][AArch64] Enable support for range stepping

gdb/gdbserver/Changelog:

* linux-aarch64-low.c (aarch64_supports_range_stepping): New
function, return 1.
(the_low_target): Install it.

[testsuite] Skip gdb.trace/range-stepping.exp test case if not supported

Tracepoints and range stepping are independent features.  This patch
skips the gdb.trace/range-stepping.exp test case if the target does not
support range stepping.

gdb/testsuite/ChangeLog:

* gdb.base/range-stepping.exp (gdb_range_stepping_enabled):
Move it to ...
* lib/range-stepping-support.exp (gdb_range_stepping_enabled):
... here.
* gdb.trace/range-stepping.exp: Check that the target supports
range stepping.

ari, btrace: avoid unsigned long long

Fix the ARI warning about the use of unsigned long long.  We can't use
ULONGEST as this is defined unsigned long on 64-bit systems.  This will
result in a compile error when storing a pointer to an unsigned long long
structure field (declared in perf_event.h as __u64) in a ULONGEST * variable.

Use size_t to hold the buffer size inside GDB and __u64 when interfacing the
Linux kernel.

gdb/
* nat/linux-btrace.c (perf_event_read): Change the type of DATA_HEAD.
(perf_event_read_all): Change the type of SIZE and DATA_HEAD.
(perf_event_read_bts): Change the type of SIZE and READ.
(linux_enable_bts): Change the type of SIZE, PAGES, DATA_SIZE,
and DATA_OFFSET.  Move DATA_SIZE declaration.  Restrict the buffer size
to UINT_MAX.  Check for overflows when using DATA_HEAD from the perf
mmap page.
(linux_enable_pt): Change the type of PAGES and SIZE.  Restrict the
buffer size to UINT_MAX.
(linux_read_bts): Change the type of BUFFER_SIZE, SIZE, DATA_HEAD, and
DATA_TAIL.
* nat/linux-btrace.h (struct perf_event_buffer)<size, data_head>
<last_head>: Change type.
* common/btrace-common.h (struct btrace_dat_pt) <size>: Change type.
* common/btrace-common.c (btrace_data_append): Change the type of
SIZE.
* btrace.c (parse_xml_raw): Change the type of SIZE.  Change oddness
check.

Automatic date update in version.in

Remove CHECK_TYPEDEF, use check_typedef instead

I think that the CHECK_TYPEDEF macro is not necessary, and even a bit
annoying.  It makes unclear the fact that the "type" variables gets
overwritten.  It has actually bitten me a few times.  I think the
following, explicit form, is better.

  type = check_typedef (type);

This patches changes all instances of CHECK_TYPEDEF for an equivalent
call to check_typedef.  The bulk of the change was done with this sed:

  sed -i 's/CHECK_TYPEDEF (\([^)]*\));/\1 = check_typedef (\1);/' <file>.c

The ChangeLog was generated using David Malcom's generate_changelog.py.
I manually fixed those places where it gets the wrong function name,
hopefully all of them.

The patch was built-tested, and I ran a few smoke tests.

gdb/ChangeLog:
* gdbtypes.h (CHECK_TYPEDEF): Remove.
* aarch64-tdep.c (aarch64_return_in_memory): Replace CHECK_TYPEDEF
        with check_typedef.
* ada-lang.c (decode_constrained_packed_array_type): Likewise.
(ada_array_length): Likewise.
(find_parallel_type_by_descriptive_type): Likewise.
(ada_check_typedef): Likewise.
* arm-tdep.c (arm_return_in_memory): Likewise.
* ax-gdb.c (gen_trace_static_fields): Likewise.
(gen_struct_ref_recursive): Likewise.
* c-exp.y (exp : SIZEOF '(' type ')' %prec UNARY): Likewise.
(variable: block COLONCOLON name): Likewise.
(qualified_name: TYPENAME COLONCOLON name): Likewise.
* c-lang.c (classify_type): Likewise.
* c-typeprint.c (c_print_type): Likewise.
(c_print_typedef): Likewise.
(c_type_print_base): Likewise.
* c-valprint.c (c_val_print): Likewise.
* compile/compile-c-types.c (convert_type): Likewise.
* compile/compile-object-load.c (get_out_value_type): Likewise.
* completer.c (add_struct_fields): Likewise.
(expression_completer): Likewise.
* cp-namespace.c (cp_find_type_baseclass_by_name): Likewise.
(cp_lookup_nested_symbol_1): Likewise.
(cp_lookup_nested_symbol): Likewise.
* cp-valprint.c (cp_print_value_fields): Likewise.
(cp_print_static_field): Likewise.
* d-valprint.c (d_val_print): Likewise.
* eval.c (evaluate_subexp_standard): Likewise.
(evaluate_subexp_for_sizeof): Likewise.
* f-exp.y (exp : SIZEOF '(' type ')' %prec UNARY): Likewise.
* f-typeprint.c (f_type_print_base): Likewise.
* f-valprint.c (f_val_print): Likewise.
* gdbtypes.c (get_discrete_bounds): Likewise.
(create_array_type_with_stride): Likewise.
(type_name_no_tag_or_error): Likewise.
(lookup_struct_elt_type): Likewise.
(get_unsigned_type_max): Likewise.
(internal_type_vptr_fieldno): Likewise.
(set_type_vptr_fieldno): Likewise.
(internal_type_vptr_basetype): Likewise.
(set_type_vptr_basetype): Likewise.
        (get_vptr_fieldno): Likewise.
(is_integral_type): Likewise.
(is_scalar_type): Likewise.
        (is_scalar_type_recursive): Likewise.
(distance_to_ancestor): Likewise.
(is_unique_ancestor_worker): Likewise.
(check_types_equal): Likewise.
* gnu-v2-abi.c (gnuv2_value_rtti_type): Likewise.
* gnu-v3-abi.c (gnuv3_dynamic_class): Likewise.
(gnuv3_get_vtable): Likewise.
(gnuv3_pass_by_reference): Likewise.
* go-exp.y (exp : SIZEOF_KEYWORD '(' type ')' %prec UNARY): Likewise.
* go-lang.c (gccgo_string_p): Likewise.
(go_classify_struct_type): Likewise.
* go-typeprint.c (go_print_type): Likewise.
* go-valprint.c (go_val_print): Likewise.
* guile/scm-math.c (vlscm_binop): Likewise.
* guile/scm-value.c (gdbscm_value_dynamic_type): Likewise.
(gdbscm_value_to_bytevector): Likewise.
(gdbscm_value_to_bool): Likewise.
(gdbscm_value_to_integer): Likewise.
(gdbscm_value_to_real): Likewise.
* infcall.c (call_function_by_hand_dummy): Likewise.
* infcmd.c (get_return_value): Likewise.
* jv-lang.c (is_object_type): Likewise.
* jv-typeprint.c (java_type_print_base): Likewise.
* jv-valprint.c (java_print_value_fields): Likewise.
(java_val_print): Likewise.
* linespec.c (find_methods): Likewise.
(collect_one_symbol): Likewise.
* m2-typeprint.c (m2_print_type): Likewise.
(m2_print_typedef): Likewise.
(m2_get_discrete_bounds): Likewise.
* m2-valprint.c (m2_print_long_set): Likewise.
(m2_print_unbounded_array): Likewise.
(m2_print_array_contents): Likewise.
(m2_val_print): Likewise.
* opencl-lang.c (opencl_print_type): Likewise.
* p-exp.y (exp : SIZEOF '(' type ')' %prec UNARY): Likewise.
* p-typeprint.c (pascal_print_type): Likewise.
(pascal_print_typedef): Likewise.
(pascal_type_print_base): Likewise.
* p-valprint.c (pascal_val_print): Likewise.
(pascal_object_print_value_fields): Likewise.
(pascal_object_print_static_field): Likewise.
* python/py-type.c (typy_fields_items): Likewise.
(typy_get_composite): Likewise.
* python/py-value.c (valpy_get_dynamic_type): Likewise.
(valpy_binop): Likewise.
(valpy_long): Likewise.
(valpy_float): Likewise.
* stack.c (return_command): Likewise.
* symtab.c (check_field): Likewise.
(lookup_symbol_aux): Likewise.
* tic6x-tdep.c (tic6x_return_value): Likewise.
* typeprint.c (print_type_scalar): Likewise.
* valarith.c (value_vector_widen): Likewise.
* valops.c (value_cast): Likewise.
(value_assign): Likewise.
(do_search_struct_field): Likewise.
(search_struct_method): Likewise.
(find_method_list): Likewise.
* valprint.c (val_print_scalar_type_p): Likewise.
(valprint_check_validity): Likewise.
(generic_val_print): Likewise.
* value.c (unpack_double): Likewise.
(value_primitive_field): Likewise.
(unpack_bits_as_long): Likewise.

Add support reading D modules from DWARF

Extends existing support for namespaces/modules in C++/Fortran/Java to
include language_d too.  However unlike Fortran/C++, the separator for
qualified names is a single dot.

2015-07-14  Iain Buclaw  <ibuclaw@gdcproject.org>

* dwarf2read.c (find_slot_in_mapped_hash): Extend language support to
also test for language_d.
(dwarf2_compute_name): Likewise.
(read_func_scope): Likewise.
(read_structure_type): Likewise.
(determine_prefix): Likewise.
(read_import_statement): Use dot as the separator for language_d.
(typename_concat): Likewise, but don't prefix the D main function.

i386-biarch-core.exp: Fix comment typo

gdb/testsuite/ChangeLog
2015-07-14  Jan Kratochvil  <jan.kratochvil@redhat.com>

* gdb.arch/i386-biarch-core.exp: Fix comment typo.

Make default compression gABI compliant

All programs in binutils+gdb git repo now support gABI compression
with the SHF_COMPRESSED bit.  This patch makes the zlib-gabi option
as compression default for gas, gold, ld and objcopy, instead of the
zlib-gnu option whose outputs are incompatible with gABI.

binutils/

* objcopy.c (copy_file): Set BFD_COMPRESS_GABI if not
zlib-gnu.
* doc/binutils.texi: Change --compress-debug-sections and
--compress-debug-sections=zlib to zlib-gabi.

binutils/testsuite/

* binutils-all/compress.exp: Update.

gas/

* as.c (parse_args): Make --compress-debug-sections and
--compress-debug-sections=zlib the same as
--compress-debug-sections=zlib-gabi.
* doc/as.texinfo: Change --compress-debug-sections and
--compress-debug-sections=zlib to zlib-gabi.

gold/

* compressed_output.cc (Output_compressed_section::set_final_data_size):
Make --compress-debug-sections=zlib the same as
--compress-debug-sections=zlib-gabi.
* testsuite/Makefile.am (flagstest_compress_debug_sections.check):
Expect ".debug_.*" with the SHF_COMPRESSED bit, instead of
".zdebug_".
* testsuite/Makefile.in: Regenerated.

ld/

* emultempl/elf32.em (gld${EMULATION_NAME}_handle_option): Make
--compress-debug-sections=zlib the same as
--compress-debug-sections=zlib-gabi.
* ld.texinfo: Change --compress-debug-sections=zlib to zlib-gabi.

ld/testsuite/

* ld-elf/zlibbegin.rS: Updated to .debug_.* with the
SHF_COMPRESSED bit.
* ld-elf/zlibnormal.rS: Likewise.

Sync Makefile.tpl with GCC

* Makefile.in: Regenerated.

Sync with GCC
2015-05-21  Jason Merrill  <jason@redhat.com>

* Makefile.tpl: Update comments.

2015-04-22  Bernhard Reutner-Fischer  <aldot@gcc.gnu.org>

* Makefile.tpl: Remove surplus whitespace throughout.

2015-03-25  Martin Liska  <mliska@suse.cz>
    Yury Gribov  <y.gribov@samsung.com>

* Makefile.tpl: Fix ln source location for vimrc file.

Sync longlong.h with GCC

Sync with GCC
2014-10-28  Richard Henderson  <rth@redhat.com>

* longlong.h [__alpha] (umul_ppmm): Disable for c++.

Sync hashtab.h, splay-tree.h with GCC

Sync with GCC
2014-12-09  Trevor Saunders  <tsaunders@mozilla.com>

* hashtab.h, splay-tree.h: Remove GTY markers.

Remove trailing spaces in demangle.h

Sync ansidecl.h with GCC

Sync with GCC
2015-03-02  Markus Trippelsdorf  <markus@trippelsdorf.de>

PR target/65261
* ansidecl.h (ATTRIBUTE_NO_SANITIZE_UNDEFINED): New macro.

Sync config files with GCC

Sync with GCC
2015-05-13  Eric Botcazou  <ebotcazou@adacore.com>

* sjlj.m4: New file.

2015-05-04  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* bitfields.m4: Change int to long long, and use bitfields of
width 1 instead of 0.

2015-05-01  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>

* bitfields.m4: New file.

2015-04-14  H.J. Lu  <hongjiu.lu@intel.com>

* bootstrap-mpx.mk: New file.

2015-03-25  Uros Bizjak  <ubizjak@gmail.com>

PR bootstrap/65537
* bootstrap-lto-noplugin.mk: New build configuration.

2014-11-13  Kirill Yukhin  <kirill.yukhin@intel.com>

* target-posix: New file.

2014-10-27  Tom Tromey  <tromey@redhat.com>

* gcc-plugin.m4: New file.

Fix build issue with nat/linux-namespaces.c.

* nat/linux-namespaces.c (setns): Rename from this ...
(do_setns): ... to this.  Support calling setns if it exists.
(mnsh_handle_setns): Call do_setns.

Sync config/warnings.m4 with GCC

config/

Sync with GCC
2015-05-27  Jason Merrill  <jason@redhat.com>

PR bootstrap/66304
* warnings.m4 (ACX_PROG_CXX_WARNING_OPTS)
(ACX_PROG_CXX_WARNINGS_ARE_ERRORS)
(ACX_PROG_CXX_WARNING_ALMOST_PEDANTIC): New.
(ACX_PROG_CC_WARNING_OPTS, ACX_PROG_CC_WARNING_ALMOST_PEDANTIC)
(ACX_PROG_CC_WARNINGS_ARE_ERRORS): Push into C language context.

libdecnumber/

* configure: Regenerated.

libiberty/

* configure: Regenerated.

opcodes/

* configure: Regenerated.

Sync toplevel configure with GCC

Sync with GCC
2015-05-16  James Bowman  <james.bowman@ftdichip.com>

* configure.ac: FT32 target added.
* configure: Regenerate.

Sync toplevel configure.ac with GCC

Sync with GCC
2015-06-02  Jason Merrill  <jason@redhat.com>

PR bootstrap/66319
* configure.ac: Use -std=gnu++98.

2015-05-28  Mike Frysinger  <vapier@gentoo.org>

* configure.ac (--vtable-verify): Use AS_HELP_STRING for help.
* configure: Regenerate.

2015-05-11  Paulo Matos  <paulo@matos-sorge.com>

* configure.ac: Fix typo.
* configure: Regenerate.

2015-05-03  Matthias Klose  <doko@ubuntu.com>

* configure.ac: Match $host configured with triplets.
* configure: Regenerate.

2015-04-17  Jakub Jelinek  <jakub@redhat.com>

PR bootstrap/62077
* configure.ac (--enable-stage1-checking): Default to
release,misc,gimple,rtlflag,tree,types if --disable-checking
or --enable-checking is not specified and DEV-PHASE is not
experimental.
* configure: Regenerated.

2015-03-27  Uros Bizjak  <ubizjak@gmail.com>

Install back PR target/47230 fix (Revert the revert).

config/

Sync with GCC
* mh-alpha-linux: Restored.

Remove extraneous whitespace from ARM sim sources.

* armcopro.c: Remove extraneous whitespace.
* armdefs.h: Likewise.
* armfpe.h: Likewise.
* arminit.c: Likewise.
* armopts.h: Likewise.
* armos.c: Likewise.
* armos.h: Likewise.
* armrdi.c: Likewise.
* armsupp.c: Likewise.
* armvirt.c: Likewise.
* bag.c: Likewise.
* bag.h: Likewise.
* communicate.c: Likewise.
* communicate.h: Likewise.
* dbg_conf.h: Likewise.
* dbg_cp.h: Likewise.
* dbg_hif.h: Likewise.
* dbg_rdi.h: Likewise.
* gdbhost.c: Likewise.
* gdbhost.h: Likewise.
* iwmmxt.c: Likewise.
* iwmmxt.h: Likewise.
* kid.c: Likewise.
* main.c: Likewise.
* maverick.c: Likewise.
* parent.c: Likewise.
* thumbemu.c: Likewise.
* wrapper.c: Likewise.

Fix texinfo problem by adding the required period after an @xref.

* ld.texinfo (Options): Add missing period after @xref.

Add test that exercises the inferior being killed while stopped under GDB

This exercises the case of the inferior disappearing while GDB is
debugging it, such as something doing "kill -9 PID" while the program
is stopped under GDB or GDBserver.  This triggered a set of internal
errors, fixed by previous patches.

gdb/testsuite/ChangeLog:
2015-07-14  Pedro Alves  <palves@redhat.com>

* gdb.base/killed-outside.exp: New file.
* gdb.base/killed-outside.c: New file.

gdbserver/Linux: internal error when killing a process that is already gone

If the process disappears (e.g., killed with "kill -9" from the shell)
while it was stopped under GDBserver's control, and the GDBserver
tries to kill it, GDBserver asserts:

 (gdb) shell kill -9 23084
 (gdb) kill
 ...
 Killing process(es): 23084
 /home/pedro/gdb/mygit/src/gdb/gdbserver/linux-low.c:972: A problem internal to GDBserver has been detected.
 kill_wait_lwp: Assertion `res > 0' failed.
 ...

gdb/gdbserver/ChangeLog:
2015-07-14  Pedro Alves  <palves@redhat.com>

* linux-low.c (kill_wait_lwp): Don't assert if waitpid fails.
Instead, ignore ECHILD, and throw an error for other errnos.

Automatic date update in version.in

Fix attach-pie-noexec.exp fail on native-extended-gdbserver

When I examine the buildbot fails, I see this fail on
native-extended-gdbserver,

 Attaching to process 13529^M
 "target:/scratch/yao/gdb/build-git/x86_64/gdb/testsuite/gdb.base/attach-pie-noexec (deleted)": could not open as an executable file: No such file or directory^M
 (gdb) FAIL: gdb.base/attach-pie-noexec.exp: attach

if I run tests with board file unix, it doesn't exist,

 Attaching to process 13869^M
 /scratch/yao/gdb/build-git/x86_64/gdb/testsuite/gdb.base/attach-pie-noexec (deleted): No such file or directory.^M
 (gdb) PASS: gdb.base/attach-pie-noexec.exp: attach

the test expects to see the period at the end of the error message,

  gdb_test "attach $testpid" "Attaching to process $testpid\r\n.*: No such file or directory\\." "attach"

however the period is missing when running with native-extended-gdbserver.

in exec.c:exec_file_attach, GDB has two places may throw errors [1] and [2],

      if (load_via_target)
{
  ...
}
      else
{
    ...
  if (scratch_chan < 0)
    perror_with_name (filename);  <--- [1]
}

...
      if (!exec_bfd)
{
  error (_("\"%s\": could not open as an executable file: %s"), <-- [2]
 scratch_pathname, bfd_errmsg (bfd_get_error ()));
}

perror_with_name [1] append a period at the end of error message,
but error [2] doesn't.  This fix is to add a period at the end of the
error message.  Note that this fail is shown up on 7.9 release as well.

gdb:

2015-07-13  Yao Qi  <yao.qi@linaro.org>

* exec.c (exec_file_attach): Add period at the end of error
message.

gdb/tui: Add command completion to winheight command.

Share the window name completion code from the focus command with the
winheight command, providing window name completion for the winheight
command.

gdb/ChangeLog:

* tui/tui-win.c (window_name_completer): New function.
(focus_completer): Call window_name_completer.  All old content
moved into window_name_completer.
(winheight_completer): New function.
(_initialize_tui_win): Rename variable.  Add completer to
winheight command.  Update doc string on winheight.

Automatic date update in version.in

Extend --compress-debug-sections in gold

This patch extends --compress-debug-sections= with [zlib-gnu|zlib-gabi]
in gold.

PR gold/18322
* compressed_output.cc (zlib_compress): Add argument for
compression header size.  Set header size to compression header
size if it isn't 0.  Don't write out the zlib header here.
(Output_compressed_section::set_final_data_size): Support
zlib-gnu and zlib-gabi compressions.  Pass compression header
size to zlib_compress and write out compression header.  Set
the SHF_COMPRESSED bit for zlib-gabi compression.  Otherwise
clear the SHF_COMPRESSED bit
* options.h (compress_debug_sections): Add zlib-gnu and
zlib-gabi.
* output.h (Output_section::set_flags): New.
* testsuite/Makefile.am (check_PROGRAMS): Add
flagstest_compress_debug_sections_none,
flagstest_compress_debug_sections_gnu and
flagstest_compress_debug_sections_gabi.
(check_DATA): Add flagstest_compress_debug_sections_none.stdout.
flagstest_compress_debug_sections.stdout,
flagstest_compress_debug_sections.cmp,
flagstest_compress_debug_sections.check,
flagstest_compress_debug_sections_gnu.stdout,
flagstest_compress_debug_sections_gnu.cmp,
flagstest_compress_debug_sections_gnu.check,
flagstest_compress_debug_sections_gabi.stdout,
flagstest_compress_debug_sections_gabi.cmp and
flagstest_compress_debug_sections_gabi.check.
(flagstest_compress_debug_sections_none): New.
(flagstest_compress_debug_sections_none.stdout): Likewise.
(flagstest_compress_debug_sections.stdout): Likewise.
(flagstest_compress_debug_sections.check): Likewise.
(flagstest_compress_debug_sections.cmp): Likewise.
(flagstest_compress_debug_sections_gnu): Likewise.
(flagstest_compress_debug_sections_gnu.stdout): Likewise.
(flagstest_compress_debug_sections_gnu.check): Likewise.
(flagstest_compress_debug_sections_gnu.cmp): Likewise.
(flagstest_compress_debug_sections_gabi): Likewise.
(flagstest_compress_debug_sections_gabi.stdout): Likewise.
(flagstest_compress_debug_sections_gnu.check): Likewise.
(flagstest_compress_debug_sections_gnu.cmp): Likewise.
* testsuite/Makefile.in: Regenerated.

Add SHF_COMPRESSED section decompression to gold

This patch adds SHF_COMPRESSED section decompression to gold.

PR gold/18321
* compressed_output.h (decompress_input_section): Add arguments
for ELF class, big endian and sh_flags.
* compressed_output.cc (decompress_input_section): Likewise.
Support the SHF_COMPRESSED section.
* dynobj.h (Dynobj): Add elfsize and is_big_endian member
functions.
* plugin.h (Pluginobj): Likewise.
* layout.cc (Layout::get_output_section_flags): Also clear the
SHF_COMPRESSED bit.
* object.h (Compressed_section_info): Add flag to store sh_flags.
(Object): Add pure virtual elfsize and is_big_endian member
functions.
* object.cc (need_decompressed_section): Don't skip the ".zdebug"
prefix here.
(build_compressed_section_map): Check SHF_COMPRESSED for
uncompressed size.  Store sh_flags in Compressed_section_info.
Pass size, big_endian and sh_flags to decompress_input_section.
Skip the ".debug"/".zdebug" prefix when passing section name to
need_decompressed_section.
(Sized_relobj_file<size, big_endian>::do_find_special_section):
Don't check ".zdebug_*" sections.
(Object::decompressed_section_contents): Pass ELF class, big
endian and sh_flags to decompress_input_section.
* reloc.cc (Sized_relobj_file<size, big_endian>::write_sections):
Likewise.
* testsuite/Makefile.am (check_DATA): Add
debug_msg_cdebug_gabi.err and gdb_index_test_2_gabi.stdout.
(MOSTLYCLEANFILES): Add debug_msg_cdebug_gabi.err and
gdb_index_test_2_gabi.stdout.
(debug_msg_cdebug_gabi.o): New.
(odr_violation1_cdebug_gabi.o): Likewise.
(odr_violation2_cdebug_gabi.o): Likewise.
(debug_msg_cdebug_gabi.err): Likewise.
(check_SCRIPTS): Add gdb_index_test_2_gabi.sh.
(gdb_index_test_cdebug_gabi.o): Likewise.
(gdb_index_test_2_gabi): Likewise.
(gdb_index_test_2_gabi.stdout): Likewise.
* testsuite/gdb_index_test_2_gabi.sh: New file.
* testsuite/Makefile.in: Regenerated.

Fix GDB breakage due to addition of new nios2 mach types in BFD.

2015-07-12  Sandra Loosemore  <sandra@codesourcery.com>

gdb/
* nios2-linux-tdep.c (_initialize_nios2_linux_tdep): Register
all nios2 mach variants.

Automatic date update in version.in

Automatic date update in version.in

Properly convert objects between different ELF classes

The output SHF_COMPRESSED section size is different from input if
ELF classes of input and output aren't the same.  We must adjust
the section sizes as well as the compression headers in
SHF_COMPRESSED sections when converting objects between different
ELF classes.

bfd/

 PR binutils/18656
 * bfd.c (bfd_convert_section_size): New function.
 (bfd_convert_section_contents): Likewise.
 * bfd-in2.h: Regenerated.

binutils/

2015-07-10  H.J. Lu  <hongjiu.lu@intel.com>

 PR binutils/18656
 * objcopy.c (setup_section): Call bfd_convert_section_size
 to get the output section size.
 (copy_section): Get the section size from the output section
 and call bfd_get_full_section_contents to convert section
 contents for output.

binutils/testsuite/

 PR binutils/18656
 * binutils-all/compress.exp (convert_test): New proc.
 Run conversion tests between x86-64 and x32.

rx-tdep.c: Use target_read_code instead of target_read_memory.

This change causes the prologue scanner and the frame type scanner in
rx-tdep.c to use target_read_code() instead of target_read_memory().
This change allows these instruction scanners to operate much more
quickly due to the fact that target_read_code() can potentially read
from a cache maintained by GDB.

gdb/ChangeLog:

* rx-tdep.c (rx_get_opcode_byte): Use target_read_code instead
of target_read_memory.

gdbserver/event-loop.c: type mismatch

Building with C++ catches a buglet here:

../../../src/gdb/gdbserver/event-loop.c:205:19: warning: invalid conversion from ‘gdb_client_data {aka void*}’ to ‘void**’ [-fpermissive]
   event_ptr->data = data;
                   ^

This works in practice because gdb_client_data is a pointer already
(hence in C we get an implicit conversion), and nothing deferences the
pointer.  It's passed from client at event registration/creation time,
only to pass straight back to client callback.

Well, that and nothing in gdbserver uses the event data anyway.

gdb/gdbserver/ChangeLog:
2015-07-10  Pedro Alves  <palves@redhat.com>

* event-loop.c (struct callback_event) <data>: Change type to
gdb_client_data instance instead of gdb_client_data pointer.
(append_callback_event): Adjust.

Warn unsupported compress type and corrupted compressed section

* readelf.c (dump_section_as_strings): Warn unsupported compress
type and corrupted compressed section.
(dump_section_as_bytes): Likewise.
(load_specific_debug_section): Likewise.

Updated to accept .debug_* sections

* gas/i386/dw2-compress-1.d: Updated to accept .debug_* sections.

Updated to accept .debug_* sections

* binutils-all/dw2-3.W: Updated to accept .debug_* sections.

Fix testsuite regression by: Do not skip prologue for asm (.S) files

I have somehow missed gdb.asm/asm-source.exp PASS->FAIL even on x86_64.

It has no longer valid assumption that "break" breaks after the prologue even
in assembler.  So I have changed this assumption of the testfile.

gdb/testsuite/ChangeLog
2015-07-10  Jan Kratochvil  <jan.kratochvil@redhat.com>

* gdb.asm/asm-source.exp (f at main): Stop at gdbasm_enter.
(n at main): New.
* gdb.asm/asmsrc1.s: Add comment "mark: main enter".

[GDBserver][AArch64] Cleanup comments for each linux_target_ops method

This patch cleans up the comments for each linux_target_ops methods.  We
should mention which method each function implements but there is no
need to duplicate information already mentionned in the base target_ops
or linux_target_ops definitions.

gdb/gdbserver/ChangeLog:

* linux-aarch64-low.c: Add comments for each linux_target_ops
method.  Remove comments already covered in target_ops and
linux_target_ops definitions.
(the_low_target): Add comments for each unimplemented method.

gdb/tui: Use cleanups to free string copies.

In parse_scrolling_args it is possible for a string copy to leak if an
error occurs.  Switching to using a cleanup fixes this leak.

In tui_set_win_height the string can't be leaked, but switching to using
a cleanup guards against the possibility that a leak could be introduced
in the future (by adding an error somewhere in the call stack).

gdb/ChangeLog:

* tui/tui-win.c (tui_set_win_height): Use a cleanup to free the
string copy.
(parse_scrolling_args): Likewise.

gdb/tui: Define tui window names once.

Don't duplicate the window names inside the completion function.
Instead make use of the existing defines, and the tui_win_name function
to obtain the window names.

gdb/ChangeLog:

* tui/tui-win.c (focus_completer): Don't duplicate the tui window
names in this function.

gdb: Convert TUI windows names to lower case.

This commit converts the window names for the TUI windows to lower case.
The windows names are already lower case in the documentation, and are
shown as lower case in some of the command completion results.

Given that all the commands that take a window name currently accept
upper or lower case, this commit just changes the window names to lower
case in the remaining places they are displayed by gdb.

gdb/ChangeLog:

* tui/tui-data.h (SRC_NAME): Convert to lower case.
(CMD_NAME): Likewise.
(DATA_NAME): Likewise.
(DISASSEM_NAME): Likewise.
* tui/tui-win.c (tui_set_focus): Window names are now lower case.
(tui_set_win_height): Likewise.
(parse_scrolling_args): Likewise.

Make ALIGN(x) behave as ALIGN(.,x)

Inside output sections, ALIGN(.,x) uses a section-relative value for
dot.  The unary ALIGN always used the absolute value of dot.

* ldexp.c (align_dot_val): New function.
(fold_unary <ALIGN_K, NEXT>): Use it.

Add missing changelog entries

gnu_vector.exp: Skip infcall tests on x86/x86_64

Since the new KFAILs/KPASSs for the infcall tests on x86 and x86_64
targets generated unnecessary noise, this change skips them with
UNSUPPORTED instead.

gdb/testsuite/ChangeLog:

* gdb.base/gnu_vector.exp: On x86 and x86_64 targets, skip the
infcall tests instead of setting up for KFAIL.

record: set stop_pc in "record goto" command

When navigating in the recorded execution trace via "record goto", we do not
set stop_pc.  This may trigger an internal error in infrun.c when stepping
from that location.  Set it.

(gdb) rec full
(gdb) c
Continuing.

Breakpoint 1, foo (void) at foo.c:42
42             x = y
(gdb) rn
foo (void)
    at foo.c:41
41             y = x
(gdb) rec go end
Go forward to insn number 98724
    at foo.c:42
42             x = y
(gdb) n
infrun.c:2382: internal-error: resume: Assertion `sig != GDB_SIGNAL_0' failed.
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n)

This happens because there's a breakpoint at PC when the "next"
is issued, so that breapoint should be immediately stepped over.
That should have been detected/done by proceed, here:

  if (addr == (CORE_ADDR) -1)
    {
      if (pc == stop_pc
  && breakpoint_here_p (aspace, pc) == ordinary_breakpoint_here
  && execution_direction != EXEC_REVERSE)
/* There is a breakpoint at the address we will resume at,
   step one instruction before inserting breakpoints so that
   we do not stop right away (and report a second hit at this
   breakpoint).

   Note, we don't do this in reverse, because we won't
   actually be executing the breakpoint insn anyway.
   We'll be (un-)executing the previous instruction.  */
tp->stepping_over_breakpoint = 1;

But since stop_pc was stale, the pc == stop_pc check failed, and left the
breakpont at PC inserted.

gdb/
* record-btrace.c (record_btrace_goto_begin, record_btrace_goto_end)
record_btrace_goto): Move call to print_stack_frame ...
(record_btrace_set_replay): ... here.  Set stop_pc.
* record-full.c (record_full_goto_entry): Set stop_pc.

testsuite/
* gdb.btrace/record_goto-step.exp: New.

Use "gold_info" instead of "gold_warning" for erratum fix.

gold/ChangeLog:

* aarch64.cc (Target_aarch64::scan_erratum_843419_span): Use 'gold_info'.
(Target_aarch64::scan_erratum_835769_span): USe 'gold_info'.

Automatic date update in version.in

Drop 'missing mapping symbols' warning for arm and aarch64.

The psABI (AAELF) says this about mapping symbols:

    4.6.5.1 Section-relative mapping symbols

    Mapping symbols defined in a section define a sequence of
    half-open address intervals that cover the address range of the
    section. Each interval starts at the address defined by the
    mapping symbol, and continues up to, but not including, the
    address defined by the next (in address order) mapping symbol or
    the end of the section. A section must have a mapping symbol
    defined at the beginning of the section; however, if the section
    contains only data then the mapping symbol may be omitted.

That makes it pretty clear that, in the absence of a mapping symbol,
the entire section can be treated as data.

gold/ChangeLog:
* aarch64.cc (AArch64_relobj::scan_errata): Drop missing symbol warning.
* arm.cc (Arm_relobj::scan_section_for_cortex_a8_erratum): Drop missing
symbol warning.

Add NEWS entry for tracepoints support on aarch64-linux

gdb/ChangeLog:

* NEWS: Mention support for tracepoints on aarch64-linux.

[GDBServer][AArch64] Enable support for tracepoints

gdb/gdbserver/ChangeLog:

* linux-aarch64-low.c (aarch64_supports_tracepoints): New
function.  Return 1.
(the_low_target): Install it.

[testsuite][AArch64] Port gdb.trace

This patch adds support for AArch64 to the gdb.trace testsuite.

Note that it does not add support for testing fast tracepoint as it
isn't supported.  Therefore the test cases with inline assembly are not
ported in this patch, as we do not know what the conditions for
inserting a fast tracepoint on AArch64 would be.

gdb/testsuite/ChangeLog:

* gdb.trace/backtrace.exp: Set registers for aarch64 target.
* gdb.trace/collection.exp: Likewise.
* gdb.trace/mi-trace-frame-collected.exp: Likewise.
* gdb.trace/mi-trace-unavailable.exp: Likewise.
* gdb.trace/report.exp: Likewise.
* gdb.trace/trace-break.exp: Likewise.
* gdb.trace/unavailable.exp: Likewise.
* gdb.trace/while-dyn.exp: Likewise.