git.libre-soc.org Git - binutils-gdb.git/log

arc/nps400: Add new instructions

Add some new control instructions to the opcodes library, and a new test
for these new instructions to the assembler. The new instructions use
an instruction flag longer than any seen before (on arc), and so the max
flag length is extended to accommodate this.

gas/ChangeLog:

* config/tc-arc.h (MAX_FLAG_NAME_LENGTH): Increase to 7.
* testsuite/gas/arc/nps400-2.d: New file.
* testsuite/gas/arc/nps400-2.s: New file.

opcodes/ChangeLog:

* arc-nps400-tbl.h: Add schd, sync, and hwschd instructions.
* arc-opc.c (arc_flag_operands): Add new flags.
(arc_flag_classes): Add new classes.

gas/arc: Handle multiple arc_opcode chains for same mnemonic

This commit completes support for having multiple instructions with the
same mnemonic in non-contiguous blocks within the arc_opcodes table.

The commit adds an iterator mechanism for the arc_opcode_hash_entry
structure, which is then used in find_opcode_match to consider all
arc_opcode entries with the same mnemonic, even when these instructions
are stored in non-contiguous blocks.

I extend the comment on the arc_opcodes table to discuss how entries
within the table are organised, and to mention how instructions can be
split into multiple groups if needed, but that the table is still
searched in table order.

There should be no user visible changes after this commit.

gas/ChangeLog:

* config/tc-arc.c (struct arc_opcode_hash_entry_iterator): New
structure.
(arc_opcode_hash_entry_iterator_init): New function.
(arc_opcode_hash_entry_iterator_next): New function.
(find_opcode_match): Iterate over all arc_opcode entries
referenced by the arc_opcode_hash_entry passed in as a parameter.

opcodes/ChangeLog:

* arc-opc.c (arc_opcodes): Extend comment to discus table layout.

gas/arc: Additional work to support multiple arc_opcode chains

Building on earlier commits, this commit moves along support for having
multiple arc_opcode entries in the arc_opcodes table that have the same
mnemonic (name) field, but are not stored in a contiguous block in the
table.

In this commit we support looking up the arc_opcode_hash_entry from the
hash table, and passing this along to the find_opcode_match function,
which then finds the specific arc_opcode that we're assembling. We
still don't actually support the multiple chains of arc_opcode entries
in this commit, but the limitation is now isolated to the
find_opcode_match function.

There is no user visible change after this commit.

gas/ChangeLog:

* config/tc-arc.c (arc_find_opcode): Now returns
arc_opcode_hash_entry pointer.
(find_opcode_match): Update argument type, extract arc_opcode from
incoming arc_opcode_hash_entry.
(find_special_case_pseudo): Update return type.
(find_special_case_flag): Update return type.
(find_special_case): Update return type.
(assemble_tokens): Lookup arc_opcode_hash_entry based on
instruction mnemonic, then use find_opcode_match to identify
specific arc_opcode.

gas/arc: Modify structure used to hold opcodes

The arc assembler builds a hash table to hold references to arc_opcode
entries in the arc_opcodes table.  This hash assumes that each mnemonic
will always appear in a contiguous blocks within the arc_opcodes table;
all ADD instruction will be together, all AND instructions will likewise
be together and so on.

The problem with this is that as different variations of arc are added,
then it is often more convenient to split instructions apart, so all the
base ADD instructions are together, but, variants of ADD specific to one
variation of arc are grouped with other instructions specific to that
arc variant.  The current data structures don't support splitting the
instructions in this way.

This commit is a first step towards addressing this limitation.  In this
commit the hash table that currently holds arc_opcode pointers directly,
instead holds a pointer to a new, intermediate, data structure.  This
new data structure holds the pointer to the arc_opcode.  In this way, we
can, in the future support having the intermediate structure hold
multiple pointers to different arc_opcode groups.

There should be no visible functional change after this commit.

gas/ChangeLog:

* config/tc-arc.c (struct arc_opcode_hash_entry): New structure.
(arc_find_opcode): New function.
(find_special_case_pseudo): Use arc_find_opcode.
(find_special_case_flag): Likewise.
(assemble_tokens): Likewise.
(md_begin): Build hash using struct arc_opcode_hash_entry.

Fix gdb.reverse/finish-reverse-bkpt.exp

I see the following fail on aarch64-linux

break void_func
Breakpoint 2 at 0x4007a0: file gdb/testsuite/gdb.reverse/finish-reverse.c, line 44.
(gdb) PASS: gdb.reverse/finish-reverse-bkpt.exp: set breakpoint on void_func
continue
Continuing.

Breakpoint 2, void_func () at gdb/testsuite/gdb.reverse/finish-reverse.c:44^M
44        void_test = 1;                /* VOID FUNC */^M
(gdb) PASS: gdb.reverse/finish-reverse-bkpt.exp: continue to breakpoint: void_func
break *void_func^M
Note: breakpoint 2 also set at pc 0x4007a0.^M
Breakpoint 3 at 0x4007a0: file gdb/testsuite/gdb.reverse/finish-reverse.c, line 44.
(gdb) PASS: gdb.reverse/finish-reverse-bkpt.exp: set breakpoint at void_func's entry
reverse-finish^M
Run back to call of #0  void_func () at gdb/testsuite/gdb.reverse/finish-reverse.c:44
main (argc=1, argv=0x7ffffffb78) at gdb/testsuite/gdb.reverse/finish-reverse.c:98
98        void_func ();                                 /* call to void_func */^M
(gdb) FAIL: gdb.reverse/finish-reverse-bkpt.exp: reverse-finish from void_func trips breakpoint at entry

The test assumes that brekapoints on "void_func" and "*void_func" are
set on different places because of function prologue.  However, on
aarch64-linux, there is no prologue in void_func, so two breakpoints
are set at the same place (0x4007a0).

(gdb) disassemble void_func
Dump of assembler code for function void_func:
   0x00000000004007a0 <+0>: adrp x0, 0x410000
   0x00000000004007a4 <+4>: add x0, x0, #0xc14
   0x00000000004007a8 <+8>: mov w1, #0x1
   0x00000000004007ac <+12>: str w1, [x0]
   0x00000000004007b0 <+16>: ret

The fix to this problem is to single step forward before setting
breakpoint on *void_func.

gdb/testsuite:

2016-04-07  Yao Qi  <yao.qi@linaro.org>

* gdb.reverse/finish-reverse-bkpt.exp: Use temporary breakpoint.
Execute "si" command.

Fix gdb.reverse/next-reverse-bkpt-over-sr.exp

I see the fail on aarch64-linux,

(gdb) reverse-next

Breakpoint 2, callee () at /home/yao/SourceCode/gnu/gdb/git/gdb/testsuite/gdb.reverse/step-reverse.c:26^M
26        myglob++; return 0;   /* ARRIVED IN CALLEE */
(gdb) FAIL: gdb.reverse/next-reverse-bkpt-over-sr.exp: reverse-next over call trips user breakpoint at function entry

The test expects program stops at line 25, but program stops at line 26.

(gdb) maintenance info line-table
objfile: /scratch/yao/gdb/build-git/aarch64-linux-gnu/gdb/testsuite/outputs/gdb.reverse/next-reverse-bkpt-over-sr/next-reverse-bkpt-over-sr ((struct objfile *) 0x613000002880)
compunit_symtab: ((struct compunit_symtab *) 0x621000121760)
symtab: /home/yao/SourceCode/gnu/gdb/git/gdb/testsuite/gdb.reverse/step-reverse.c ((struct symtab *) 0x6210001217e0)
linetable: ((struct linetable *) 0x6210001520d0):
INDEX    LINE ADDRESS
0          25 0x0000000000400890
1          26 0x0000000000400890
2          27 0x00000000004008b0

(gdb) disassemble callee
Dump of assembler code for function callee:
   0x0000000000400890 <+0>:     adrp    x0, 0x410000
   0x0000000000400894 <+4>:     add     x0, x0, #0xcac

the line-table show that the first instruction of function callee is
mapped line 25 and 26.  I am not sure the line-table is correct, but
it is not the point of this test.  The goal of this test is to test
program hits the breakpoint on the first instruction of function after
'reverse-next', so I change this test to expect the breakpoint number
the program hits.

gdb/testsuite:

2016-04-07  Yao Qi  <yao.qi@linaro.org>

* gdb.reverse/next-reverse-bkpt-over-sr.exp: Match the breakpoint
number instead of the comments on some line.

Make breakpoint handling in record-full idempotent

Some test fails in gdb.reverse/break-reverse.exp on arm-linux lead me
seeing the following error message,

continue^M
Continuing.^M
Cannot remove breakpoints because program is no longer writable.^M
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Further execution is probably impossible.^M
^M
Breakpoint 3, bar () at /home/yao/SourceCode/gnu/gdb/git/gdb/testsuite/gdb.reverse/break-reverse.c:22^M
22        xyz = 2; /* break in bar */^M
(gdb) PASS: gdb.reverse/break-reverse.exp: continue to breakpoint: bar backward

this is caused by two entries in record_full_breakpoints, and their addr
is the same, but in_target_beneath is different.

during the record, we do continue,

Continuing.
infrun: clear_proceed_status_thread (Thread 13772.13772)
infrun: proceed (addr=0xffffffff, signal=GDB_SIGNAL_DEFAULT)
infrun: step-over queue now empty
infrun: resuming [Thread 13772.13772] for step-over
infrun: skipping breakpoint: stepping past insn at: 0x8620
Sending packet: $Z0,85f4,4#1d...Packet received: OK  <----
.....
Sending packet: $vCont;c#a8...infrun: target_wait (-1.0.0, status) =
infrun:   -1.0.0 [process -1],
infrun:   status->kind = ignore
infrun: TARGET_WAITKIND_IGNORE
infrun: prepare_to_wait
infrun: target_wait (-1.0.0, status) =
infrun:   -1.0.0 [process -1],
infrun:   status->kind = ignore
infrun: TARGET_WAITKIND_IGNORE
infrun: prepare_to_wait
Packet received: T05swbreak:;0b:9cf5ffbe;0d:9cf5ffbe;0f:f4850000;thread:p35cc.35cc;core:1;
Sending packet: $Z0,85f4,4#1d...Packet received: OK <-----
....
Sending packet: $z0,85f4,4#3d...Packet received: OK <-----

we can see breakpoint on 0x85f4 are inserted *twice*, but only removed
once.  That is fine to remote target, because Z/z packets are
idempotent, but there is a leftover in record_full_breakpoints
in record-full target.  The flow can be described as below,

                                record_full_breakpoints   remote target
  -----------------------------------------------------------------------
  forward execution, continue,    in_target_beneath 1     breakpoint inserted
  insert breakpoints on 0x85f4    in_target_beneath 1
  twice

  program stops,
  remove breakpoint on 0x85f4     in_target_beneath 1     breakpoint removed

  reverse execution, continue,    in_target_beneath 1     none is requested
  insert breakpoints on 0x85f4,   in_target_beneath 0

  program stops,
  remote breakpoint on 0x85f4,    in_target_beneath 0     request to remove,
                                                          but GDBserver
  doesn't know

now, the question is why breakoint on 0x85f4 is inserted twice?  One
is the normal breakpoint, and the other is the single step breakpoint.
GDB inserts single step breakpoint to do single step.  When program
stops at 0x85f4, both of them are set on 0x85f4, and GDB deletes
single step breakpoint, so in update_global_location_list, this
breakpoint location is no longer found, GDB call
force_breakpoint_reinsertion to mark it condition_updated, and insert
it again.

The reason force_breakpoint_reinsertion is called to update the
conditions in the target side, because the conditions may be
changed.  My original fix is to not call force_breakpoint_reinsertion
if OLD_LOC->cond is NULL, but it is not correct if another location
on the same address has condition, GDB doesn't produce condition for
target side, but GDB should do.

Then, I change my mind back to make record-full handling breakpoint
idempotent, to align with remote target.  Before insert a new entry
into record_full_breakpoints, look for existing one on the same
address first.  I also add an assert on
"bp->in_target_beneath == in_target_beneath", to be safer.

gdb:

2016-04-07  Yao Qi  <yao.qi@linaro.org>

* record-full.c (record_full_insert_breakpoint): Return
early if entry on the address is found in
record_full_breakpoints.

Set bp_tgt->reqstd_address and bp_tgt->placed_size in record_full_insert_breakpoint

I notice that bp_tgt won't be fully initialized if to_insert_breakpoint
isn't called in record_full_insert_breakpoint, and bp_tgt->reqstd_address
is zero, so an entry is added to record_full_breakpoints, but its address
is zero, which is wrong. This patch is to call gdbarch_breakpoint_from_pc
in the else branch to set bp_tgt->reqstd_address and bp_tgt->placed_size.

gdb:

2016-04-07 Yao Qi <yao.qi@linaro.org>

* record-full.c (record_full_insert_breakpoint): Set
bp_tgt->reqstd_address and bp_tgt->placed_size.

ld/arc: Make little endian default choice for linker scripts

When building with --enable-targets=all the target string is not set to
something that matches the pattern arc*-*, and so the script used to
decide if we should build big or little endian linker script currently
exits with an error.

This commit makes little endian linker script be the default, which will
be used when building for all targets, this matches the behaviour from
before I made the endianness switchable, when we only ever built little
endian linker scripts anyway.

ld/ChangeLog:

* emulparams/arc-endianness.sh: Make little endian default choice.

Fix gas/ChangeLog

[ARC] Prepare strings for automatic translation.

gas/
2016-04-07 Claudiu Zissulescu <claziss@synopsys.com>

* config/tc-arc.c (arc_option): Prepare string for automatic
translation.
(declare_register): Likewise.

Update AArch64 documentation regarding architecture extensions.

* doc/c-aarch64.texi (Architecture Extensions): Add entry for LSE.
Correct entry for RDMA. Alpha sort entries.

gas/arc: Allow greater range of characters into flag names

An upcoming commit will add a new arc instruction flag that uses
characters that have never appeared in an arc instruction flag before.
Currently the assembler is very conservative about which characters can
or cannot appear in an instruction flag.

This commit relaxes these constraints a little. After this commit all
alpha-numeric characters are now allowed into instruction flags. This
complete set is not required for the upcoming change, however, having
this slightly larger set does not impact the assemblers ability to
correctly parse input, but does make it easier to add new flag to the
instruction table.

gas/ChangeLog:

* config/tc-arc.c (tokenize_flags): Allow greater range of
characters into flag names.

gas/arc: Remove preprocess_operands function

The preprocess_operands function changes the incoming list of assembler
tokens based on the assumption that the first arc_operand found will be
the same instruction class as all of the arc_operands for the same
mnemonic.

Though this assumption is probably fine, removing this assumption, and
pushing the token change down into assemble_tokens makes the code no
more complex, and might even be easier to follow.

There should be no user visible changes after this commit.

gas/ChangeLog:

* config/tc-arc.c (find_opcode_match): Handle O_symbol case, add
new de_fault label.
(preprocess_operands): Delete.
(assemble_tokens): Remove call to preprocess_operands.

Allow integer contants to have a U suffix. Improve error reporting for missing closing parentheses.

PR gas/19910
* config/tc-sparc.c (sparc_ip): Report an error if the expression
inside a %-macro could not be fully parsed.
* expr.c (integer_constant): Accept and ignore U suffixes to
integers.
(operand): When a missing closing parenthesis is encountered,
report the character that was found instead.
* testsuite/gas/mips/tls-ill.l: Update expected error message.
* testsuite/gas/sparc/pr19910-1.d: New test driver.
* testsuite/gas/sparc/pr19910-1.s: New test.
* testsuite/gas/sparc/pr19910-2.l: Expected error output.
* testsuite/gas/sparc/pr19910-2.s: New test.
* testsuite/gas/sparc/sparc.exp: Run the new tests.

Fix typo in name of MSP430 attribute section.

Automatic date update in version.in

Eliminate -var-create error for optzd ptr to struct

This patch eliminates an error thrown when accessing the value of a
pointer to a structure where the pointer has been optimized out and
'set print object' is 'on'.  The error shows up as the rather ugly
value of the pointer variable in Eclipse.

If 'set print object' is 'on', GDB tries to determine the actual
(derived) type of the object rather than the declared type, which
requires dereferencing the pointer, which in this cases throws an
error because the pointer has been optimized out.

The fix is to simply ignore the 'print object on' setting for
pointers or references to structures when they have been optimized
out.  This means we just get the declared type instead of the actual
type, because in this case that's the best that we can do.

To implement the fix, value_optimized_out was modified so that it
no longer throws an error when it fails to fetch the specified
value.  Instead, it just checks value->optimized_out.  If we can't
definitively say that the value is optimized out, then we assume
it is not.

gdb/ChangeLog:
2016-04-06  Don Breazeal  <donb@codesourcery.com>

* value.c (value_actual_type): Don't try to get rtti type
of the value if it has been optimized out.
(value_optimized_out): If a memory access error occurs,
just check vaue->optimized_out.

Optimized-out pointer: New test for error handling

This patch implements a test that ensures that with "set print object
on", -var-create returns "<optimized out>" for an optimized out pointer
to structure, rather than throwing an error, while also ensuring that
any attempt to dereference the pointer *will* throw an error.

It uses the dwarf assembler to construct the appropriate debug info
to represent a pointer-to-struct in the program as optimized out,
and then accesses that pointer in various ways. The test uses both
the console interpreter and the MI interpreter.

gdb/testsuite/ChangeLog:
2016-04-06 Don Breazeal <donb@codesourcery.com>

* gdb.dwarf2/dw2-opt-structptr.c: New test program.
* gdb.dwarf2/dw2-opt-structptr.exp: New test script.

Fix gdb.threads/dlopen-libpthread.exp crash

Following, commit

  6e774b13c3b81ac2599812adf058796948ce7e95 Make ftrace tests work with remote targets

the test gdb.threads/dlopen-libpthread.exp started to fail with:

  ERROR: error copying "/home/emaisin/build/binutils-gdb/gdb/testsuite/gdb.threads/dlopen-libpthread.so": no such file or directory

This is because the library path is not computed using
standard_output_file, so we try to gdb_load_shlibs an unexisting file.

gdb/testsuite/ChangeLog:

* gdb.threads/dlopen-libpthread.exp: Set binfile_lib using
standard_output_file.  Remove unused binfile variable.

Revert the previous commit adding unknown_v_replies_ok.

It broke the compatibility with gdbserver-7.6 due to:
warning: remote target does not support file transfer, attempting to access files from local filesystem.

gdb/ChangeLog
2016-04-06 Jan Kratochvil <jan.kratochvil@redhat.com>

Revert the previous commit adding unknown_v_replies_ok.

Workaround gdbserver<7.7 for setfs

With current FSF GDB HEAD and old FSF gdbserver I expected I could do:
gdb -ex 'file target:/root/redhat/threadit' -ex 'target remote :1234'
(supplying that unsupported qXfer:exec-file:read by "file")
But that does not work because:
Sending packet: $vFile:setfs:0#bf...Packet received: OK
Packet vFile:setfs (hostio-setfs) is supported
...
Sending packet: $vFile:setfs:104#24...Packet received: OK
"target:/root/redhat/threadit": could not open as an executable file: Invalid argument

GDB documentation says:
The valid responses to Host I/O packets are:
An empty response indicates that this operation is not recognized.

This "empty response" vs. "OK" was a bug in gdbserver < 7.7.  It was fixed by:
commit e7f0d979dd5cc4f8b658df892e93db69d6d660b7
Author: Yao Qi <yao@codesourcery.com>
Date:   Tue Dec 10 21:59:20 2013 +0800
    Fix a bug in matching notifications.
Message-ID: <1386684626-11415-1-git-send-email-yao@codesourcery.com>
https://sourceware.org/ml/gdb-patches/2013-12/msg00373.html
2013-12-10  Yao Qi  <yao@codesourcery.com>
* notif.c (handle_notif_ack): Return 0 if no notification
matches.

with unpatched old FSF gdbserver and patched FSF GDB HEAD:
gdb -ex 'file target:/root/redhat/threadit' -ex 'target remote :1234'
Sending packet: $vFile:setfs:0#bf...Packet received: OK
Packet vFile:setfs (hostio-setfs) is NOT supported
...
(gdb) info sharedlibrary
From                To                  Syms Read   Shared Object Library
0x00007ffff7ddbae0  0x00007ffff7df627a  Yes (*)     target:/lib64/ld-linux-x86-64.so.2
0x00007ffff7bc48a0  0x00007ffff7bcf514  Yes (*)     target:/lib64/libpthread.so.0

gdb/ChangeLog
2016-04-06  Jan Kratochvil  <jan.kratochvil@redhat.com>

* remote.c (struct remote_state): New field unknown_v_replies_ok.
(packet_config_support): Read it.
(remote_start_remote): Set it.

Fix MSP430 assembler's detection of NOP and EINT.

* config/tc-msp430.c (msp430_operands): Check for a NOP preceding
an EINT instruction. Warn/fix as necessary.
* testsuite/gas/msp430/bad.s: Add test of EINT without preceding NOP.
* testsuite/gas/msp430/bad.l: Update expected messages.

Revert check-in by a mistake in the previous commit.

gdb/ChangeLog
2016-04-06 Jan Kratochvil <jan.kratochvil@redhat.com>

* remote.c: Revert check-in by a mistake in the previous commit.

Print the "file" command suggestion in exec_file_locate_attach

currently:
$ gdbserver-7.9 :1234 true &
$ gdb -q -ex 'target remote :1234' # that -q is not relevant here
Remote debugging using :1234
warning: Could not load vsyscall page because no executable was specified
try using the "file" command first.
0x00007ffff7ddcc80 in ?? ()
(gdb) b main
No symbol table is loaded.  Use the "file" command.
Make breakpoint pending on future shared library load? (y or [n]) _

Provide more suggestive message to use the "file" command.

gdb/ChangeLog
2016-04-06  Jan Kratochvil  <jan.kratochvil@redhat.com>
    Pedro Alves  <palves@redhat.com>

* exec.c (exec_file_locate_attach): Print warning for unsupported
target_pid_to_exec_file.
* symfile-mem.c (add_vsyscall_page): Remove the "file" command
message part.

Fix memory leak in ld ARM backend

2016-04-06 Thomas Preud'homme <thomas.preudhomme@arm.com>

bfd/
* elf32-arm.c (elf32_arm_size_stubs): Move error_ret_free_local to be
a fall through from error_ret_free_internal. Free local_syms in
error_ret_free_local if allocated from bfd_elf_get_elf_syms ().

testsuite: Update py-mi-objfile to expect console format print

Starting with this commit:

  commit e7ea3ec7c623be0b9be1eaf4929794652a84be11
  Author: Catalin Udma <catalin.udma@freescale.com>
  Date:   Mon Feb 29 16:16:19 2016 +0200

    python: Use console format for output of gdb.execute command

the python script would use console format for gdb.execute output.
This patch fixes py-mi-objfile to expect the console format when is
checking for gdb.execute printing.

gdb/testsuite/ChangeLog:
2016-04-05  Catalin Udma  <catalin.udma@freescale.com>

        * gdb.python/py-mi-objfile-gdb.py: Use "list main" command.
        * gdb.python/py-mi-objfile.exp: Match "list main" output
        in console format.

Signed-off-by: Catalin Udma <catalin.udma@freescale.com>

Fix IPA detection in ftrace-insn-reloc.exp

In commit 6e774b13c3b, I forgot to update this test.

gdb/testsuite/ChangeLog:

* gdb.arch/ftrace-insn-reloc.exp: Check for IPA basename instead of
absolute.

Automatic date update in version.in

ld/arc: Fix linker for big-endian arc targets

This aims to bring the linker for big-endian arc targets into line with
the linker for (the default) little endian arc targets.

The bulk of the changes are to extend the target pattern in the test
files from 'arc-*...' to 'arc*-*...' and so match both big and little
endian arc targets.

In the ld/emulparams/ directory the existing scripts checked for a
variable ARC_ENDIAN to switch between big and little endian targets,
however, this variable is never set up.

So, a new script snippet is introduced which sets up ARC_ENDIAN based on
the value of target, this snippet is then included from all of the
existing arc scripts.

The existing big-endian variants of all the scripts, which existed, but
were never used, are deleted in this commit.

ld/ChangeLog:

* emulparams/arc-endianness.sh: New file.
* emulparams/arcebelf.sh: Deleted.
* emulparams/arcebelf_prof.sh: Deleted.
* emulparams/arceblinux.sh: Deleted.
* emulparams/arceblinux_prof.sh: Deleted.
* emulparams/arcelf.sh: Include arc-endinness.sh.
* emulparams/arcelf_prof.sh: Include arc-endinness.sh.
* emulparams/arclinux.sh: Include arc-endinness.sh.
* emulparams/arclinux_prof.sh: Include arc-endinness.sh.
* emulparams/arcv2elf.sh: Include arc-endinness.sh.
* emulparams/arcv2elfx.sh: Include arc-endinness.sh.
* testsuite/ld-elf/compressed1d.d: Update pattern for big and
little endian arc targets.
* testsuite/ld-elf/eh-frame-hdr.d: Likewise.
* testsuite/ld-elf/group1.d: Likewise.
* testsuite/ld-elf/group3b.d: Likewise.
* testsuite/ld-elf/group8a.d: Likewise.
* testsuite/ld-elf/group8b.d: Likewise.
* testsuite/ld-elf/group9a.d: Likewise.
* testsuite/ld-elf/group9b.d: Likewise.
* testsuite/ld-elf/linkonce2.d: Likewise.
* testsuite/ld-elf/pr12851.d: Likewise.
* testsuite/ld-elf/pr12975.d: Likewise.
* testsuite/ld-elf/pr13177.d: Likewise.
* testsuite/ld-elf/pr13195.d: Likewise.
* testsuite/ld-elf/pr17615.d: Likewise.
* testsuite/ld-elf/pr19162.d: Likewise.
* testsuite/ld-elf/sec64k.exp: Likewise.
* testsuite/lib/ld-lib.exp: Likewise.

arc/nps400: Add additional instructions

Adds the movbi, decode1, fbset, fbclear, encode0, encode1, rflt, crc16,
and crc32 instructions for the nps400 arc machine type.

gas/ChangeLog:

* testsuite/gas/arc/nps400-1.d: Update expected results.
* testsuite/gas/arc/nps400-1.s: Additional test cases.

opcodes/ChangeLog:

* arc-nps400-tbl.h: Add movbi, decode1, fbset, fbclear, encode0,
encode1, rflt, crc16, and crc32 instructions.
* arc-opc.c (arc_flag_operands): Add F_NPS_R.
(arc_flag_classes): Add C_NPS_R.
(insert_nps_bitop_size_2b): New function.
(extract_nps_bitop_size_2b): Likewise.
(insert_nps_bitop_uimm8): Likewise.
(extract_nps_bitop_uimm8): Likewise.
(arc_operands): Add new operand entries.

Make ftrace tests work with remote targets

When we build a shared library for testing, it is built differently
whether it is meant for the local system or a remote one.  When it is
for the local system, the library is built with no SONAME.  So when the
executable is built, roughly in this way:

  $ gcc testfile.c /path/to/library.so

the executable will contain an absolute reference to the library.  For
example:

  $ readelf -a testsuite/gdb.python/py-shared | grep NEEDED
   0x0000000000000001 (NEEDED)             Shared library: [/home/emaisin/build/binutils-gdb/gdb/testsuite/gdb.python/py-shared-sl.sl]

When testing is done remotely, the absolute path obviously doesn't work.
Therefore, we build the library with an SONAME:

  $ readelf -a testsuite/gdb.python/py-shared-sl.sl | grep SONAME
   0x000000000000000e (SONAME)             Library soname: [py-shared-sl.sl]

which ends up in the executable's NEEDED field:

  $ readelf -a testsuite/gdb.python/py-shared | grep NEEDED
   0x0000000000000001 (NEEDED)             Shared library: [py-shared-sl.sl]

The executable and the library are then uploaded side-by-side on the
remote system.  To allow the dynamic linker to find the shared library,
we have to add the special RPATH value $ORIGIN, which tells it to search
in the executable's directory:

  $ readelf -a testsuite/gdb.python/py-shared | grep ORIGIN
   0x000000000000000f (RPATH)              Library rpath: [$ORIGIN]

The problem with the IPA library is that it doesn't have an SONAME,
making it very difficult to do testing on a remote board.  When a
test executable is linked with it, it contains an absolute reference to
the library path.  Therefore, unless the paths on the target are the
same as on the build system, it won't work.

To make it possible for tests using the IPA library to run test on
remote boards, I suggest adding an SONAME to libinproctrace.so.  I don't
think it should be a big problem for users.  All the libraries installed
on my system have an SONAME, so it should be fine if libinproctrace.so
does too.

As a consequence, native testing does not work anymore, since
executables do not contain the absolute path to the library anymore.  To
keep them working, we can have gdb_load_shlibs copy the library to the
test directory when testing natively.  That's done by modifying
gdb_load_shlibs.  We also have to add RPATH=$ORIGIN to executables, even
when testing natively.

I think it's a good change in general, as it reduces the differences
between testing a native and a remote target.  To further reduce those
differences, we can also always build test shared libraries with an
SONAME.

ftrace.exp and ftrace-lock.exp need to be modified slightly.  The code
checks that the IPA library is loaded using the absolute path on the
build machine.  That obviously doesn't work if the test is done
remotely, as the path will be different.  I changed the tests to only
search for the library basename (e.g. libinproctrace.so).

gdb/gdbserver/ChangeLog:

* Makefile.in ($(IPA_LIB)): Set SONAME of the IPA lib.

gdb/testsuite/ChangeLog:

* gdb.trace/ftrace-lock.exp: Check for IPA basename instead of
absolute.
* gdb.trace/ftrace.exp: Likewise.
* lib/gdb.exp (gdb_compile): Set rpath $ORIGIN for non-remote
targets as well.
(gdb_compile_shlib): Set SONAME for non-remote targets as well.
(gdb_load_shlibs): Copy libraries to test directory when testing
natively.  Only set solib-search-path if testing remotely.
* lib/mi-support.exp (mi_load_shlibs): Likewise.

Improve gdb_remote_download, remove gdb_download

This patch removes gdb_download in favor of gdb_remote_download, since
they are very close in functionality.  Also, in preparation for the
following patch about shared library handling during tests, it improves
gdb_remote_download so that it uses standard_output_file for any
destination board that is local, not only host.

If the destination board is remote, gdb_remote_download will use the
standard remote_download from DejaGnu, resulting in the file being
transferred on the remote system.

If the destination is local, gdb_remote_download will copy the file to
the standard test directory (found using standard_output_file).  Tcl's
file copy seems to handle gracefully cases where the source file is the
same as the destination, so I don't think it's necessary to check for
that case ourselves, as a previous version of the patch did.

I'd prefer to keep the name gdb_download instead of gdb_remote_download,
since I don't like the fact that gdb_remote_download implies that the
destination is remote, when it's not always the case.  However,
gdb_remote_download is used at many more places than gdb_download, so
it's easier to reuse that.  Also, since it's a wrapper around DejaGnu's
remote_download, it might be better to keep that name.  I don't know.

I ran the testsuite native, with native-gdbserver and with a
remote gdbserver, and didn't see any related failure.

gdb/testsuite/ChangeLog:

* gdb.base/jit-so.exp: Use gdb_remote_download instead of
gdb_download.  Use it even if the target is not remote.
* gdb.base/jit.exp (compile_jit_test): Likewise.
* lib/gdb.exp (gdb_remote_download): Copy files to the standard
output directory if the destination board is local, otherwise use
the standard remote_download from DejaGnu.
(gdb_download): Remove.
(gdb_load_shlibs): Use gdb_remote_download instead of
gdb_download.
* lib/gdbserver-support.exp (gdbserver_download_current_prog):
Use gdb_remote_download instead of gdb_download.  Use it even if
the target is not remote.
* lib/mi-support.exp (mi_load_shlibs): Use gdb_remote_download
instead of gdb_download.

IPA: Move getauxval out of #ifndef IN_PROCESS_AGENT

The getauxval code was wrongly included in code area only compiled for
gdbserver. Move it to a #ifdef IN_PROCESS_AGENT area that already
contains lots of IPA-only code.

gdb/gdbserver/ChangeLog:

* tracepoint.c (getauxval): Move to #ifdef IN_PROCESS_AGENT.

[ARC] Fix support for double assist instructions.

opcodes/
2016-04-05  Claudiu Zissulescu  <claziss@synopsys.com>

        * arc-regs.h: Add a new subclass field.  Add double assist
        accumulator register values.
        * arc-tbl.h: Use DPA subclass to mark the double assist
        instructions.  Use DPX/SPX subclas to mark the FPX instructions.
        * arc-opc.c (RSP): Define instead of SP.
        (arc_aux_regs): Add the subclass field.

include/
2016-04-05  Claudiu Zissulescu  <claziss@synopsys.com>

        * opcode/arc.h (DPA, DPX, SPX): New subclass enums.
        (ARC_FPUDA): Define.
        (arc_aux_reg): Add new field.

gas/
2016-04-05  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/tc-arc.c (is_code_density_p): Compare directly the
        subclass field.
        (is_spfp_p, is_dpfp_p, is_spfp_p): Define.
        (check_cpu_feature): New function.
        (find_opcode_match): Use check_cpu_feature function.
        (preprocess_operands): Likewise.
        (md_parse_option): Use mfpuda, mdpfp, mspfp options.
        * testsuite/gas/arc/tdpfp.d: New file.
        * testsuite/gas/arc/tfpuda.d: Likewise.
        * testsuite/gas/arc/tfpx.s: Likewise.

[ARC] PLT content endianess awareness.

bfd/
2016-04-05 Cupertino Miranda <cmiranda@synopsys.com>

* elf32-arc.c (plt_do_relocs_for_symbol): Changed.
(relocate_plt_for_entry): Likewise.

[ARC] Fix to pass ld-elf-ehdr_start-shared.

bfd/
2016-04-05 Cupertino Miranda <cmiranda@synopsys.com>

* elf32-arc.c (elf_arc_check_relocs): Changed

[ARC] 24 bit reloc and overflow detection fix.

bfd/
2016-04-05 Cupertino Miranda <cmiranda@synopsys.com>

* elf32-arc.c (name_for_global_symbol): Changed assert.
(get_replace_function): Created.:
(struct arc_relocation_data): Changed to signed types.
(defines S, L, P, PDATA): Casted to signed type.
(defines SECTSTART, _SDA_BASE_, TLS_REL): Likewise.
(PRINT_DEBUG_RELOC_INFO_BEFORE): Changed.
(arc_do_relocation): Changed.

include/
2016-04-05 Cupertino Miranda <cmiranda@synopsys.com>

* opcode/arc-func.h (replace_bits24): Changed.
(replace_bits24_be): Created.

[ARM] Add ARMv8.2 FP16 vmul/vmla/vmls (by scalar)

gas/
  * config/tc-arm.c (do_neon_mac_maybe_scalar): Allow F16.
  * testsuite/gas/arm/armv8-2-fp16-simd.s: New tests.
  * testsuite/gas/arm/armv8-2-fp16-simd.d: New expected results.
  * testsuite/gas/arm/armv8-2-fp16-simd-thum.d: Likewise for Thumb.
  * testsuite/gas/arm/armv8-2-fp16-simd-warning.l: New warning results.
  * testsuite/gas/arm/simd_by_scalar_low_regbank.s: New test source.
  * testsuite/gas/arm/simd_by_scalar_low_regbank.d: New testcase.
  * testsuite/gas/arm/simd_by_scalar_low_regbank_thumb.d: Likewise for Thumb.
  * testsuite/gas/arm/simd_by_scalar_low_regbank.l: New warning results.

opcodes/
  * arm-dis.c: Support FP16 vmul, vmla, vmls (by scalar).

[ARC] Dynamic relocs verification for dynindx == -1.

bfd/
2016-04-05 Cupertino Miranda <cmiranda@synopsys.com>

* elf32-arc.c (name_for_global_symbol): Added assert to check for
symbol index.
(elf_arc_relocate_section): Added and changed asserts, validating
the synamic symbol index.
(elf_arc_finish_dynamic_symbol): Do not fill the dynamic
relocation if symbol has dynindx set to -1.

[ARC] Don't allow pc-rel relocations for J* instructions.

gas/
2016-04-05  Claudiu Zissulescu  <claziss@synopsys.com>

        * config/tc-arc.c (assemble_insn): Prohibit pc-rel relocations for
        JUMP instructions type.
        * testsuite/gas/arc/relocs-errors.d: New file.
        * testsuite/gas/arc/relocs-errors.err: Likewise.
        * testsuite/gas/arc/relocs-errors.s: Likewise.

ELF/LD: Avoid producing hidden and internal dynamic symbols

Always turn hidden and internal symbols which have a dynamic index into
local ones.  This is required by the the ELF gABI[1]:

"A hidden symbol contained in a relocatable object must be either
removed or converted to STB_LOCAL binding by the link-editor when the
relocatable object is included in an executable file or shared object."

"An internal symbol contained in a relocatable object must be either
removed or converted to STB_LOCAL binding by the link-editor when the
relocatable object is included in an executable file or shared object."

The ELF linker usually respects this requirement, however in the case
where a dynamic symbol has been preallocated due to a reference of the
default export class aka visibility from the object being linked, and
then merged with a hidden or internal symbol definition from within the
same object, then the original export class is carried over to the
output dynamic symbol table, because while merging the generic ELF
linker only converts affected dynamic symbols to local when they are
defined or referenced by the object being linked and a dynamic object
involved in the link both at a time.

The dynamic symbol produced confuses then the dynamic loader at the run
time -- the hidden or internal export class is ignored and the symbol
follows preemption rules as with the default export class.

In the MIPS target it happens when `mips_elf_record_global_got_symbol'
creates a dynamic symbol when a call relocation is encountered.
Additionally if the undefined symbol referred by such a relocation does
specify the intended export class, then a local dynamic symbol is
created instead, which is harmless and allowed, but useless.  Normally
no local dynamic symbols are created, except for a single dummy one at
the beginning.

Correct the problem by removing the extra check for a dynamic symbol
being defined or referenced by the object being linked and a dynamic
object involved in the link both at a time.  The test cases included
cover the internal and hidden symbol cases, as well as a protected
symbol for a reference, the handling of which is unchanged by this fix.
Both cases described above are covered, that is where an internal or
hidden dynamic symbol is produced and where a local one is.

NB this change affects CRIS results where some symbols in the static
table produced in a final link are now converted from STV_HIDDEN to
STB_LOCAL.  This happens whenever the `elf_backend_hide_symbol' handler
is called, so the affected symbols must have been chosen for entering
into the dynamic symbol table, except in these test cases no such symbol
table is produced.  In fully linked binaries the static symbol table is
only used for debugging though, so such a change is fine.

References:

[1] "System V Application Binary Interface - DRAFT - 24 April 2001",
    The Santa Cruz Operation, Inc., "Symbol Table",
    <http://www.sco.com/developers/gabi/2001-04-24/ch4.symtab.html>

bfd/
PR ld/19908
* elflink.c (elf_link_add_object_symbols): Always turn hidden
and internal symbols which have a dynamic index into local
ones.

ld/
PR ld/19908
* testsuite/ld-cris/tls-e-20.d: Adjust for hidden symbol
handling fix.
* testsuite/ld-cris/tls-e-20a.d: Likewise.
* testsuite/ld-cris/tls-e-21.d: Likewise.
* testsuite/ld-cris/tls-e-23.d: Likewise.
* testsuite/ld-cris/tls-e-80.d: Likewise.
* testsuite/ld-cris/tls-gd-3h.d: Likewise.
* testsuite/ld-cris/tls-leie-19.d: Likewise.
* testsuite/ld-mips-elf/export-class-ref-lib.sd: New test.
* testsuite/ld-mips-elf/export-hidden-ref.sd: New test.
* testsuite/ld-mips-elf/export-internal-ref.sd: New test.
* testsuite/ld-mips-elf/export-protected-ref.sd: New test.
* testsuite/ld-mips-elf/export-class-ref-f0.s: New test source.
* testsuite/ld-mips-elf/export-class-ref-f1.s: New test source.
* testsuite/ld-mips-elf/export-class-ref-f2.s: New test source.
* testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.

[ARC] Fix ld testsuite failures.

ld/
016-04-05 Cupertino Miranda <cmiranda@synopsys.com>

* testsuite/ld-discard/extern.d: Removed xfail for ARC.
* testsuite/ld-discard/start.d: Likewise.
* testsuite/ld-discard/static.d: Likewise.
* testsuite/ld-elf/group1.d: Likewise.
* testsuite/ld-elf/group3b.d: Likewise.
* testsuite/ld-elf/orphan-region.d: Likewise.
* testsuite/ld-elf/orphan.d: Likewise.
* testsuite/ld-elf/orphan3.d: Likewise.
* testsuite/ld-elf/pr349.d: Likewise.
* testsuite/ld-elf/warn1.d: Likewise.
* testsuite/ld-elf/warn2.d: Likewise.
* testsuite/ld-elf/warn3.d: Likewise.
* testsuite/ld-scripts/crossref.exp: Add __SDATA_BEGIN__ symbol
through linker flags.
* testsuite/ld-srec/srec.exp: Set as xfail.

Don't use vec_disp8 encoding with the .d32 suffix

Since the .d32 suffix prefers 32-bit displacement in encoding, try
vec_disp8 encoding only if i.disp_encoding != disp_encoding_32bit.

PR gas/19909
* config/tc-i386.c (check_VecOperands): Try vec_disp8 encoding
only if i.disp_encoding != disp_encoding_32bit.
* gas/testsuite/gas/i386/disp32.s: Add tests for vmovdqu64.d32.
* gas/testsuite/gas/i386/x86-64-disp32.s: Likewise.
* gas/testsuite/gas/i386/disp32.d: Updated.
* gas/testsuite/gas/i386/x86-64-disp32.d: Likewise.

Add missing pr19827-nacl.rd for i386/x86-64 NaCl

PR ld/19827
* testsuite/ld-i386/pr19827-nacl.rd: New file.
* testsuite/ld-x86-64/pr19827-nacl.rd: Likewise.

Add a testcase for PR gas/19498

PR gas/19498
* testsuite/gas/i386/i386.exp: Run pr19498.
* testsuite/gas/i386/pr19498.d: New file.
* testsuite/gas/i386/pr19498.s: Likewise.

Automatic date update in version.in

Obvious function doc and formatting

gdb/ChangeLog:

* cli/cli-decode.c (help_cmd_list): Fix function doc and remove
trailing spaces.

Fix gdb.mi/mi-breakpoint-changed.exp for remote targets

The libraries are never downloaded to the target for the first test
(test_insert_delete_modify), so the executable can't run properly.

I also added some with_test_prefix to help differentiate between the
different test case phases.

gdb/testsuite/ChangeLog:

* gdb.mi/mi-breakpoint-changed.exp: Add some with_test_prefix.
(test_insert_delete_modify): Call mi_load_shlibs before trying to
run.

More fixes for COFF/PE lanker garbage collection.

PR 19803
* emultempl/pe.em (change_undef): New function. Encapsulates
duplicated code in pe_fixup_stdcalls and adds the newly defined
sym to the gc root list.
(pe_fixup_stdcall): Use the new function.
* pe-dll.c (process_def_file_and_drectve); Add alias of exported
symbol to gc root list.

Ignore DWARF debug information with a version of 0 - assume that it is padding.

PR 19872
bfd * dwarf2.c (parse_comp_unit): Skip warning about unrecognised
version number if the version is zero.

bin * dwarf.c (display_debug_aranges): Skip warning about unrecognised
version number if the version is zero.

gas/arc: Use #define from include/opcode/arc.h

In tc-arc.h we redefine constants that are also defined in the
include/opcode/arc.h header file. The problem is that changing one
without changing the other resulting in strange crashes.

We could comment both locations to stress the importance of remembering
to update the other location too, or we could just include the
opcode/arc.h header file into the assembler.

Given that other targets include their opcode/ARCH.h header file, and
only having a single definition, where possible, is usually the safest
solution, that's what I switch too with this commit.

gas/ChangeLog:

* config/tc-arc.h: Include 'opcode/arc.h'.
(MAX_INSN_ARGS): Delete.
(MAX_INSN_FLGS): Delete.

PR19498, Invalid "symbol definition loop"

PR 19498
* symbols.c (resolve_symbol_value): Clear sy_resolving on exit
from function on all paths that set sy_resolving.

use XNEW and related macros more

gas/ChangeLog:

2016-04-03 Trevor Saunders <tbsaunde+binutils@tbsaunde.org>

* app.c (app_push): use XNEW macro.
* as.c: Likewise.
* config/obj-elf.c (obj_elf_change_section): Likewise.
(elf_copy_symbol_attributes): Likewise.
(obj_elf_size): Likewise.
(build_group_lists): Likewise.
* config/tc-aarch64.c (add_operand_error_record): Likewise.
(md_assemble): Likewise.
(tc_gen_reloc): Likewise.
(get_upper_str): Likewise.
(aarch64_parse_features): Likewise.
* config/tc-arm.c (insert_reg_alias): Likewise.
(insert_neon_reg_alias): Likewise.
(find_or_make_literal_pool): Likewise.
(s_arm_elf_cons): Likewise.
(add_unwind_opcode): Likewise.
(arm_parse_extension): Likewise.
* config/tc-avr.c (create_record_for_frag): Likewise.
* config/tc-crx.c: Likewise.
* config/tc-d30v.c: Likewise.
* config/tc-dlx.c (s_proc): Likewise.
* config/tc-ft32.c: Likewise.
* config/tc-h8300.c: Likewise.
* config/tc-hppa.c (pa_proc): Likewise.
(create_new_space): Likewise.
(create_new_subspace): Likewise.
* config/tc-i860.c: Likewise.
* config/tc-i960.c: Likewise.
* config/tc-ia64.c: Likewise.
* config/tc-iq2000.c (iq2000_add_macro): Likewise.
(iq2000_record_hi16): Likewise.
* config/tc-m32c.c (m32c_indirect_operand): Likewise.
* config/tc-m32r.c (debug_sym): Likewise.
(m32r_record_hi16): Likewise.
* config/tc-m68k.c (m68k_ip): Likewise.
(md_begin): Likewise.
* config/tc-mcore.c: Likewise.
* config/tc-microblaze.c (check_got): Likewise.
* config/tc-mips.c (append_insn): Likewise.
(s_mipsset): Likewise.
(mips_record_label): Likewise.
(s_mips_end): Likewise.
* config/tc-mmix.c (mmix_frob_file): Likewise.
* config/tc-mn10200.c: Likewise.
* config/tc-mn10300.c: Likewise.
* config/tc-moxie.c: Likewise.
* config/tc-msp430.c: Likewise.
* config/tc-nds32.c (nds32_elf_save_pseudo_pattern): Likewise.
* config/tc-ns32k.c: Likewise.
* config/tc-or1k.c: Likewise.
* config/tc-pdp11.c: Likewise.
* config/tc-pj.c (fake_opcode): Likewise.
* config/tc-ppc.c (ppc_apuinfo_section_add): Likewise.
(ppc_macro): Likewise.
(ppc_dwsect): Likewise.
(ppc_machine): Likewise.
* config/tc-rl78.c (rl78_frag_init): Likewise.
* config/tc-rx.c (rx_frag_init): Likewise.
* config/tc-s390.c (s390_lit_suffix): Likewise.
(s390_machine): Likewise.
(s390_machinemode): Likewise.
* config/tc-score.c (s3_insert_reg): Likewise.
(s3_gen_reloc): Likewise.
* config/tc-score7.c (s7_insert_reg): Likewise.
(s7_gen_reloc): Likewise.
* config/tc-tic30.c (tic30_operand): Likewise.
* config/tc-tic4x.c (tic4x_inst_make): Likewise.
* config/tc-tic54x.c (stag_add_field): Likewise.
(tic54x_struct): Likewise.
(tic54x_space): Likewise.
(tic54x_field): Likewise.
(tic54x_mlib): Likewise.
(subsym_substitute): Likewise.
* config/tc-tic6x.c (tic6x_frob_label): Likewise.
* config/tc-vax.c: Likewise.
* config/tc-xc16x.c: Likewise.
* config/tc-xtensa.c (xtensa_add_insn_label): Likewise.
(directive_push): Likewise.
(xtensa_begin_directive): Likewise.
(tokenize_arguments): Likewise.
(xtensa_add_literal_sym): Likewise.
(new_resource_table): Likewise.
(resize_resource_table): Likewise.
(emit_single_op): Likewise.
(xtensa_create_trampoline_frag): Likewise.
(xtensa_maybe_create_literal_pool_frag): Likewise.
(xtensa_add_config_info): Likewise.
(xtensa_realloc_fixup_cache): Likewise.
(add_subseg_info): Likewise.
(cache_literal_section): Likewise.
(add_xt_block_frags): Likewise.
(add_xt_prop_frags): Likewise.
(init_op_placement_info_table): Likewise.
(build_section_rename): Likewise.
* config/tc-z80.c: Likewise.
* config/tc-z8k.c: Likewise.
* depend.c (register_dependency): Likewise.
* dwarf2dbg.c (get_line_subseg): Likewise.
(dwarf2_gen_line_info_1): Likewise.
(get_filenum): Likewise.
* ecoff.c (allocate_scope): Likewise.
(allocate_vlinks): Likewise.
(allocate_shash): Likewise.
(allocate_thash): Likewise.
(allocate_tag): Likewise.
(allocate_forward): Likewise.
(allocate_thead): Likewise.
(allocate_lineno_list): Likewise.
* expr.c (make_expr_symbol): Likewise.
* hash.c (hash_new_sized): Likewise.
* input-file.c (input_file_push): Likewise.
* listing.c (file_info): Likewise.
(listing_newline): Likewise.
* macro.c (new_formal): Likewise.
(define_macro): Likewise.
* remap.c (add_debug_prefix_map): Likewise.
* symbols.c (symbol_find_noref): Likewise.
(define_dollar_label): Likewise.
(fb_label_instance_inc): Likewise.
(symbol_relc_make_value): Likewise.

Automatic date update in version.in

use xstrdup and friends more

gas/ChangeLog:

2016-04-03 Trevor Saunders <tbsaunde+binutils@tbsaunde.org>

* config/obj-elf.c (obj_elf_vendor_attribute): Use xstrdup.
* config/tc-ppc.c (ppc_frob_file_before_adjust): Likewise.
(ppc_znop): Likewise.
(ppc_pe_section): Likewise.
(ppc_frob_symbol): Likewise.
* config/tc-tic30.c (tic30_operand): Likewise.
* config/tc-tic4x.c (tic4x_sect): Likewise.
(tic4x_usect): Likewise.

cleanup FLT_CHARS and EXP_CHARS

Providing declarations in tc.h points out that alpha wasn't properly marking
FLT_CHARS as const.  We can also get rid of the confusing redefinition of
X_CHARS to mmix_x_chars.  Finally we can get rid of some now redundant
declarations of these constants.

gas/ChangeLog:

2016-04-03  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>

* config/tc-alpha.c: Const qualify FLT_CHARS.
* config/atof-ieee.c: Remove declarations of FLT_CHARS and EXP_CHARS.
* config/tc-cris.h: Likewise.
* expr.c: Likewise.
* config/tc-mmix.c (md_atof): Adjust comment.
* config/tc-mmix.h: Stop defining FLT_CHARS and EXP_CHARS as macros.
* tc.h: Declare FLT_CHARS and EXP_CHARS.

update ChangeLog for previous commit

make score build again

It needs a few more things to be const now.

gas/ChangeLog:

2016-04-03 Trevor Saunders <tbsaunde+binutils@tbsaunde.org>

* config/tc-score.c (s3_gen_reloc): Add const qualifiers.
* config/tc-score7.c (s7_gen_reloc): Likewise.

arm: change the type of a variable to bfd_reloc_code_real_type

It is only ever assigned values in the enum, and it is passed to functions that
expect the argument's type to be the enum.

gas/ChangeLog:

2016-04-03 Trevor Saunders <tbsaunde+binutils@tbsaunde.org>

* config/tc-arm.c (do_t_branch): Change the type of reloc to
bfd_reloc_code_real_type.

bfin: simplify current_inputline

Its not used for anything outside of md_assemble () so it doesn't need to be
extern. While we are there we can replace free () and xmalloc () with
XRESIZEVEC which should be faster.

gas/ChangeLog:

2016-04-03 Trevor Saunders <tbsaunde+binutils@tbsaunde.org>

* config/bfin-parse.y (current_inputline): Remove definition.
* config/tc-bfin.c (md_assemble): Simplify use of current_inputline.

avr: simplify some option parsing with strcasecmp ()

     Instead of canonicalizing the argument we can just use a case insensitive
     compare.

gas/ChangeLog:

2016-04-03  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>

* config/tc-avr.c (md_parse_option): Use strcasecmp () to compare
strings.

IPA: Fix build problem on !HAVE_GETAUXVAL

These files need AT_PHDR, which is defined in elf.h. If HAVE_GETAUXVAL
is set, it's implicitely included by sys/auxv.h. Include it manually
for the opposite case.

gdb/gdbserver/ChangeLog:

* linux-aarch64-ipa.c: Add <elf.h> include.
* linux-ppc-ipa.c: Add <elf.h> include.
* linux-s390-ipa.c: Add <elf.h> include.

Automatic date update in version.in

PR19896, Segmentation fault on bad input

PR 19896
* read.c (assign_symbol): Consume rest of line after an error
rather than continuing to process the line.

Automatic date update in version.in

gdb: allow enumeration constants as second operand of BINOP_REPEAT

This patch adds support for TYPE_CODE_ENUM values to be supplied
as right-hand side operand of the BINOP_REPEAT (@) operator. The
following should now work:

enum {
  sz = 17
};

int
main ()
{
  int arr[sz + 1] = { 0 };
  return 0; /* line 9 here */
}

(gdb) b 9
(gdb) r
(gdb) p arr@sz
$1 = {0 <repeats 17 times>}
(gdb)

A couple of tests is also included in this patch to demonstrate that it is
working as intended.

gdb/Changelog:

2016-04-01  Artemiy Volkov  <artemiyv@acm.org>

PR gdb/19820
* eval.c (evaluate_subexp_standard): Allow TYPE_CODE_ENUM to be
        the type of BINOP_REPEAT's second operand.

gdb/testsuite/Changelog:

2016-04-01  Artemiy Volkov  <artemiyv@acm.org>

PR gdb/19820
* gdb.base/printcmds.exp: Add artificial arrays tests.

gas/arc: Change 'LENGHT' to 'LENGTH'

Small spelling mistake in a #define, fixed in this commit.

gas/ChangeLog:

* config/tc-arc.h (MAX_FLAG_NAME_LENGHT): Rename to...
(MAX_FLAG_NAME_LENGTH): ...this.
(struct arc_flags): Update to use MAX_FLAG_NAME_LENGTH.
* config/tc-arc.c (tokenize_flags): Likewise.

PR19886, --as-needed regression

This isn't perfect in checking whether libraries will be loaded since
elf_link_add_object_symbols doesn't recurse down DT_NEEDED links.
(That happens later in ld/emultempl/elf32.em after_open.) So in
effect this recursive check really only looks one level down the
DT_NEEDED tree. Which is enough for the most common case, and
libc.so/ld.so in particular.

PR 19886
* elflink.c (on_needed_list): Recursively check needed status.
(elf_link_add_object_symbols): Adjust.

Constify more

* cgen.c (weak_operand_overflow_check): Return const char*.
* messages.c (as_internal_value_out_of_range): Formatting.
(as_warn_value_out_of_range): Consify prefix param.
(as_bad_value_out_of_range): Likewise.
* read.c (s_errwarn): Constify msg..
(s_float_space, float_cons): ..and err.
* as.h (as_warn_value_out_of_range, as_bad_value_out_of_range,
ieee_md_atof, vax_md_atof): Update prototypes.
* tc.h (md_atof): Update prototype.
* config/atof-ieee.c (ieee_md_atof): Return const char*.
* config/atof-vax.c (vax_md_atof): Likewise.
* config/obj-elf.c (obj_elf_parse_section_letters): Constify bad_msg.
* config/tc-aarch64.c (md_atof): Return const char*.
* config/tc-alpha.c (s_alpha_section_name): Likewise.
(s_alpha_comm): Constify sec_name.
(section_name): Constify.
(s_alpha_section): Consify name..
(alpha_elf_section_letter): ..and ptr_msg param..
(md_atof): ..and return.
* config/tc-alpha.h (alpha_elf_section_letter): Update prototype.
* config/tc-arc.c (md_atof): Return const char*.
* config/tc-arm.c (md_atof): Likewise.
* config/tc-avr.c (md_atof): Likewise.
* config/tc-bfin.c (md_atof): Likewise.
* config/tc-cr16.c (md_atof): Likewise.
* config/tc-cris.c (md_atof): Likewise.
* config/tc-crx.c (md_atof): Likewise.
* config/tc-d10v.c (md_atof): Likewise.
* config/tc-d30v.c (md_atof): Likewise.
* config/tc-dlx.c (md_atof): Likewise.
* config/tc-epiphany.c (md_atof): Likewise.
* config/tc-fr30.c (md_atof): Likewise.
* config/tc-frv.c (md_atof): Likewise.
* config/tc-ft32.c (md_atof): Likewise.
* config/tc-h8300.c (md_atof): Likewise.
* config/tc-hppa.c (struct default_subspace_dict): Constify name.
(struct default_space_dict): Likewise.
(create_new_space): Constify name param.
(create_new_subspace): Likewise.
(is_defined_space, is_defined_subspace): Likewise.
(pa_parse_space_stmt): Constify space_name param.
(md_atof): Return const char*.
(pa_spaces_begin): Constify name.
* config/tc-i370.c (md_atof): Return const char*.
* config/tc-i386.c (md_atof): Likewise.
(x86_64_section_letter): Constify ptr_msg param.
* config/tc-i386.h (x86_64_section_letter): Update prototype.
* config/tc-i860.c (struct i860_it): Constify error.
(md_atof): Return const char*.
* config/tc-i960.c (md_atof): Likewise.
* config/tc-ia64.c (md_atof): Likewise.
(ia64_elf_section_letter): Constify ptr_msg param.
* config/tc-ia64.h (ia64_elf_section_letter): Update prototype.
* config/tc-ip2k.c (md_atof): Return const char*.
* config/tc-iq2000.c (md_atof): Likewise.
* config/tc-lm32.c (md_atof): Likewise.
* config/tc-m32c.c (md_atof): Likewise.
* config/tc-m32r.c (md_atof): Likewise.
* config/tc-m68hc11.c (md_atof): Likewise.
* config/tc-m68k.c (md_atof): Likewise.
* config/tc-mcore.c (md_atof): Likewise.
* config/tc-mep.c (md_atof): Likewise.
(mep_elf_section_letter): Constify ptr_msg param.
* config/tc-mep.h (mep_elf_section_letter): Update prototype.
* config/tc-metag.c (md_atof): Return const char*.
* config/tc-microblaze.c (md_atof): Likewise.
* config/tc-microblaze.h (md_atof): Delete prototype.
* config/tc-mips.c (mips_parse_argument_token): Constify err.
(md_atof): Return const char*.
* config/tc-mmix.c (md_atof): Likewise.
* config/tc-mn10200.c (md_atof): Likewise.
* config/tc-mn10300.c (md_atof): Likewise.
* config/tc-moxie.c (md_atof): Likewise.
* config/tc-msp430.c (md_atof): Likewise.
* config/tc-mt.c (md_atof): Likewise.
* config/tc-nds32.c (md_atof): Likewise.
* config/tc-nios2.c (md_atof): Likewise.
(nios2_elf_section_letter): Constify ptr_msg param.
* config/tc-nios2.h (nios2_elf_section_letter): Update prototype.
* config/tc-ns32k.c (md_atof): Return const char*.
* config/tc-or1k.c (md_atof): Likewise.
* config/tc-pdp11.c (struct pdp11_code): Constify error.
(md_atof): Return const char*.
* config/tc-pj.c (md_atof): Likewise.
* config/tc-ppc.c (md_atof): Likewise.
* config/tc-rl78.c (md_atof): Likewise.
* config/tc-rx.c (md_atof): Likewise.
* config/tc-s390.c (md_atof): Likewise.
* config/tc-score.c (s3_atof, md_atof): Likewise.
* config/tc-sh.c (md_atof): Likewise.
* config/tc-sparc.c (struct sparc_it): Constify error.
(md_atof): Return const char*.
* config/tc-spu.c (md_atof): Likewise.
* config/tc-tic30.c (md_atof): Likewise.
* config/tc-tic4x.c (md_atof): Likewise.
* config/tc-tic54x.c (md_atof): Likewise.
* config/tc-tic6x.c (md_atof): Likewise.
* config/tc-tilegx.c (md_atof): Likewise.
* config/tc-tilepro.c (md_atof): Likewise.
* config/tc-v850.c (parse_register_list, md_atof): Likewise.
* config/tc-vax.c (md_atof): Likewise.
* config/tc-visium.c (md_atof): Likewise.
* config/tc-xc16x.c (md_atof): Likewise.
* config/tc-xgate.c (md_atof): Likewise.
* config/tc-xstormy16.c (md_atof): Likewise.
* config/tc-xtensa.c (md_atof): Likewise.
* config/tc-z80.c (md_atof): Likewise.
* config/tc-z8k.c (md_atof): Likewise.

Automatic date update in version.in

gdbserver: Fix C++ build errors in tracepoint.c

These were introduced by 1cda1512689aabb36588a01370002632a0c8e560
and a13c46966d308297a1273e35ccc807a3912d573d . One is a simple
missing cast, the other is const usage on global function pointers
exported from IPA: in C++, consts are static, and thus won't be
exported from the DSO (the build error was because of non-applicable
visibility("default")).

gdb/gdbserver/ChangeLog:

* tracepoint.c (gdb_collect_ptr): Remove const qualifier.
(get_raw_reg_ptr): Likewise.
(get_trace_state_variable_value_ptr): Likewise.
(set_trace_state_variable_value_ptr): Likewise.
(initialize_tracepoint): Cast alloc_jump_pad_buffer result to
char *.

Add regression test for PR gdb/19858 (JIT code registration on attach)

This test would fail without the previous gdb/jit.c fix:

  (gdb) attach 23031
  Attaching to program: .../build/gdb/testsuite/outputs/gdb.base/jit/jit-main, process 23031
  [...]
  207           WAIT_FOR_GDB; i = 0;  /* gdb break here 1 */
  (gdb) PASS: gdb.base/jit.exp: attach: one_jit_test-2: attach
  set var wait_for_gdb = 0
  (gdb) PASS: gdb.base/jit.exp: attach: one_jit_test-2: set var wait_for_gdb = 0
  info function ^jit_function
  All functions matching regular expression "^jit_function":
  (gdb) FAIL: gdb.base/jit.exp: attach: one_jit_test-2: info function ^jit_function

gdb/testsuite/ChangeLog:
2016-03-31  Pedro Alves  <palves@redhat.com>

PR gdb/19858
* gdb.base/jit-main.c: Include unistd.h.
(ATTACH): Define to 0 if not already defined.
(wait_for_gdb, mypid): New globals.
(WAIT_FOR_GDB): New macro.
(MAIN): Set an alarm.  Store the process's pid.  Wait for GDB at
some breakpoint locations.
* gdb.base/jit.exp (clean_reattach, continue_to_test_location):
New procedures.
(one_jit_test): Add REATTACH parameter, and handle it.  Use
continue_to_test_location.
(top level): Test attach, and adjusts calls to one_jit_test.

Make gdb.base/jit.exp binaries unique

This testcase compiles the same program and library differently
multiple times using the same file names.  Make them unique, to make
it easier to debug test problems.

gdb/testsuite/ChangeLog:
2016-03-31  Pedro Alves  <palves@redhat.com>

PR gdb/19858
* gdb.base/jit.exp (compile_jit_test): Add intro comment.  Add
BINSUFFIX parameter, and handle it.
(top level): Adjust calls compile_jit_test.

Fix PR gdb/19858: GDB doesn't register the JIT libraries on attach

Ref: https://sourceware.org/ml/gdb/2016-03/msg00023.html

GDB currently fails to fetch the list of already-registered JIT
modules on attach.

Nothing is calling jit_inferior_init, which is what is responsible for
walking the JIT object list at init time.

Despite the misleading naming, jit_inferior_created_hook ->
jit_inferior_init is only called when the inferior execs.

This regressed with the fix for PR gdb/13431 (03bef283c2d3):
https://sourceware.org/ml/gdb-patches/2012-02/msg00023.html which
removed the inferior_created (jit_inferior_created_observer)
observer.

Adding an inferior_created observer back fixes the issue.

In turn, this exposes a bug in jit_breakpoint_re_set_internal as well,
which is returning the wrong result when we already have the
breakpoint at the right address.

gdb/ChangeLog:
2016-03-31 Yichao Yu <yyc1992@gmail.com>

PR gdb/19858
* jit.c (jit_breakpoint_re_set_internal): Return 0 if we already
got the breakpoint at the right address.
(jit_inferior_created): New function.
(_initialize_jit): Install jit_inferior_created as
inferior_created observer.

Signed-off-by: Pedro Alves <palves@redhat.com>

gdb/NEWS: Add mention of powerpc*-linux tracepoints.

gdb/ChangeLog:

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

gdbserver: Add emit_ops for powerpc.

gdb/gdbserver/ChangeLog:

2016-03-31 Wei-cheng Wang <cole945@gmail.com>
Marcin Kościelnicki <koriakin@0x04.net>

PR/17221
* linux-ppc-low.c (emit_insns): New function.
(__EMIT_ASM, _EMIT_ASM, EMIT_ASM): New macros.
(ppc_emit_prologue): New function.
(ppc_emit_epilogue): New function.
(ppc_emit_add): New function.
(ppc_emit_sub): New function.
(ppc_emit_mul): New function.
(ppc_emit_lsh): New function.
(ppc_emit_rsh_signed): New function.
(ppc_emit_rsh_unsigned): New function.
(ppc_emit_ext): New function.
(ppc_emit_zero_ext): New function.
(ppc_emit_log_not): New function.
(ppc_emit_bit_and): New function.
(ppc_emit_bit_or): New function.
(ppc_emit_bit_xor): New function.
(ppc_emit_bit_not): New function.
(ppc_emit_equal): New function.
(ppc_emit_less_signed): New function.
(ppc_emit_less_unsigned): New function.
(ppc_emit_ref): New function.
(ppc_emit_const): New function.
(ppc_emit_reg): New function.
(ppc_emit_pop): New function.
(ppc_emit_stack_flush): New function.
(ppc_emit_swap): New function.
(ppc_emit_stack_adjust): New function.
(ppc_emit_call): New function.
(ppc_emit_int_call_1): New function.
(ppc_emit_void_call_2): New function.
(ppc_emit_if_goto): New function.
(ppc_emit_goto): New function.
(ppc_emit_eq_goto): New function.
(ppc_emit_ne_goto): New function.
(ppc_emit_lt_goto): New function.
(ppc_emit_le_goto): New function.
(ppc_emit_gt_goto): New function.
(ppc_emit_ge_goto): New function.
(ppc_write_goto_address): New function.
(ppc_emit_ops_impl): New static variable.
(ppc64v1_emit_prologue): New function.
(ppc64v2_emit_prologue): New function.
(ppc64_emit_epilogue): New function.
(ppc64_emit_add): New function.
(ppc64_emit_sub): New function.
(ppc64_emit_mul): New function.
(ppc64_emit_lsh): New function.
(ppc64_emit_rsh_signed): New function.
(ppc64_emit_rsh_unsigned): New function.
(ppc64_emit_ext): New function.
(ppc64_emit_zero_ext): New function.
(ppc64_emit_log_not): New function.
(ppc64_emit_bit_and): New function.
(ppc64_emit_bit_or): New function.
(ppc64_emit_bit_xor): New function.
(ppc64_emit_bit_not): New function.
(ppc64_emit_equal): New function.
(ppc64_emit_less_signed): New function.
(ppc64_emit_less_unsigned): New function.
(ppc64_emit_ref): New function.
(ppc64_emit_const): New function.
(ppc64v1_emit_reg): New function.
(ppc64v2_emit_reg): New function.
(ppc64_emit_pop): New function.
(ppc64_emit_stack_flush): New function.
(ppc64_emit_swap): New function.
(ppc64v1_emit_call): New function.
(ppc64v2_emit_call): New function.
(ppc64v1_emit_int_call_1): New function.
(ppc64v2_emit_int_call_1): New function.
(ppc64v1_emit_void_call_2): New function.
(ppc64v2_emit_void_call_2): New function.
(ppc64_emit_if_goto): New function.
(ppc64_emit_eq_goto): New function.
(ppc64_emit_ne_goto): New function.
(ppc64_emit_lt_goto): New function.
(ppc64_emit_le_goto): New function.
(ppc64_emit_gt_goto): New function.
(ppc64_emit_ge_goto): New function.
(ppc64v1_emit_ops_impl): New static variable.
(ppc64v2_emit_ops_impl): New static variable.
(ppc_emit_ops): New function.
(linux_low_target): Wire in ppc_emit_ops.

gdbserver: Add powerpc fast tracepoint support.

gdb/gdbserver/ChangeLog:

2016-03-31 Wei-cheng Wang <cole945@gmail.com>
Marcin Kościelnicki <koriakin@0x04.net>

PR/17221
* Makefile.in: Add powerpc-*-ipa.o
* configure.srv: Add ipa_obj for powerpc*-linux.
* linux-ppc-ipa.c: New file.
* linux-ppc-low.c: Added linux-ppc-tdesc.h, ax.h, tracepoint.h
includes.
(PPC_FIELD): New macro.
(PPC_SEXT): New macro.
(PPC_OP6): New macro.
(PPC_BO): New macro.
(PPC_LI): New macro.
(PPC_BD): New macro.
(init_registers_*): Move prototype to linux-ppc-tdesc.h.
(tdesc_*): Move declaration to linux-ppc-tdesc.h.
(ppc_get_hwcap): Rename to ppc_get_auxv and add type parameter.
(ppc_get_thread_area): New function.
(is_elfv2_inferior): New function.
(gen_ds_form): New function.
(GEN_STD): New macro.
(GEN_STDU): New macro.
(GEN_LD): New macro.
(GEN_LDU): New macro.
(gen_d_form): New function.
(GEN_ADDI): New macro.
(GEN_ADDIS): New macro.
(GEN_LI): New macro.
(GEN_LIS): New macro.
(GEN_ORI): New macro.
(GEN_ORIS): New macro.
(GEN_LWZ): New macro.
(GEN_STW): New macro.
(GEN_STWU): New macro.
(gen_xfx_form): New function.
(GEN_MFSPR): New macro.
(GEN_MTSPR): New macro.
(GEN_MFCR): New macro.
(GEN_MTCR): New macro.
(GEN_SYNC): New macro.
(GEN_LWSYNC): New macro.
(gen_x_form): New function.
(GEN_OR): New macro.
(GEN_MR): New macro.
(GEN_LWARX): New macro.
(GEN_STWCX): New macro.
(GEN_CMPW): New macro.
(gen_md_form): New function.
(GEN_RLDICL): New macro.
(GEN_RLDICR): New macro.
(gen_i_form): New function.
(GEN_B): New macro.
(GEN_BL): New macro.
(gen_b_form): New function.
(GEN_BNE): New macro.
(GEN_LOAD): New macro.
(GEN_STORE): New macro.
(gen_limm): New function.
(gen_atomic_xchg): New function.
(gen_call): New function.
(ppc_relocate_instruction): New function.
(ppc_install_fast_tracepoint_jump_pad): New function.
(ppc_get_min_fast_tracepoint_insn_len): New function.
(ppc_get_ipa_tdesc_idx): New function.
(the_low_target): Wire in the new functions.
(initialize_low_arch) [!__powerpc64__]: Don'it initialize 64-bit
tdescs.
* linux-ppc-tdesc.h: New file.

IPA: Add alloc_jump_pad_buffer target hook.

Targets may have various requirements on the required location of the jump
pad area.  Currently IPA allocates it at the lowest possible address,
so that it is reachable by branches from the executable.  However, this
fails on powerpc, which has executable link address (0x10000000) much
larger than branch reach (+/- 32MiB).

This makes jump pad buffer allocation a target hook instead.  The current
implementations are as follows:

- i386 and s390: Branches can reach anywhere, so just mmap it.  This
  avoids the linear search dance.
- x86_64: Branches have +/-2GiB of reach, and executable is loaded low,
  so just call mmap with MAP_32BIT.  Likewise avoids the linear search.
- aarch64: Branches have +-128MiB of reach, executable loaded at 4MiB.
  Do a linear search from 4MiB-size downwards to page_size.
- s390x: Branches have +-4GiB of reach, executable loaded at 2GiB.
  Do like on aarch64.

gdb/gdbserver/ChangeLog:

* linux-aarch64-ipa.c: Add <sys/mman.h> and <sys/auxv.h> includes.
(alloc_jump_pad_buffer): New function.
* linux-amd64-ipa.c: Add <sys/mman.h> include.
(alloc_jump_pad_buffer): New function.
* linux-i386-ipa.c (alloc_jump_pad_buffer): New function.
* linux-s390-ipa.c: Add <sys/mman.h> and <sys/auxv.h> includes.
(alloc_jump_pad_buffer): New function.
* tracepoint.c (getauxval) [!HAVE_GETAUXVAL]: New function.
(initialize_tracepoint): Delegate to alloc_jump_pad_buffer.
* tracepoint.h (alloc_jump_pad_buffer): New prototype.
(getauxval) [!HAVE_GETAUXVAL]: New prototype.

opcodes: Fix date in ChangeLog entry

Previous commit had wrong date on ChangeLog entry. Fixed.

opcodes/arc/nps: Fix some operand flags

Some operands accidentally had the ARC_OPERAND_NCHK flag (due to copy &
paste mistake), meaning the operand value was skipping the overflow
check before being inserted. This commit removes the unwanted flags.

opcodes/ChangeLog:

* arc-opc.c (arc_operands): Fix operand flags for NPS_R_DST, and
NPS_R_SRC1.

python: Use console format for output of gdb.execute command

When gdb is started in MI mode, the output of gdb.execute
command is in MI-format in case when it is executed from python stop
handler while for all other cases the output is in console-format.

To assure consistent output format, this is fixed by using the console
format for all python gdb command executions.

PR python/19743

gdb/ChangeLog:
2016-03-31 Catalin Udma <catalin.udma@freescale.com>

PR python/19743
* python/python.c (execute_gdb_command): Use console uiout
when executing gdb command.
* utils.c (restore_ui_out_closure): New structure.
(do_restore_ui_out): New function.
(make_cleanup_restore_ui_out): Likewise.
* utils.h (make_cleanup_restore_ui_out): Declare.

gdb/testsuite/ChangeLog:
2016-03-31 Catalin Udma <catalin.udma@freescale.com>

PR python/19743
* gdb.python/py-mi-events-gdb.py: New file.
* gdb.python/py-mi-events.c: New file.
* gdb.python/py-mi-events.exp: New file.

Signed-off-by: Catalin Udma <catalin.udma@freescale.com>

Remove support for "target m32rsdi" and "target mips/pmon/ddb/rockhopper/lsi"

This removes support for:

| target            | source                |
|-------------------+-----------------------|
| target m32rsdi    | gdb/remote-m32r-sdi.c |
| target mips       | gdb/remote-mips.c     |
| target pmon       | gdb/remote-mips.c     |
| target ddb        | gdb/remote-mips.c     |
| target rockhopper | gdb/remote-mips.c     |
| target lsi        | gdb/remote-mips.c     |

That is:

- Remote M32R debugging over SDI.

- Debugging boards using the MIPS remote debugging protocol
   over a serial line, PMON, and a few variants.

These are the last non-"target remote" remote targets in the tree, if
you don't count "target sim".

Refs:

https://sourceware.org/ml/gdb/2016-03/msg00004.html
https://sourceware.org/ml/gdb-patches/2016-03/msg00580.html

gdb/ChangeLog:
2016-03-31  Pedro Alves  <palves@redhat.com>

* NEWS: Mention that support for "target m32rsdi", "target mips",
"target pmon", "target ddb", "target rockhopper", and "target lsi"
was removed.
* Makefile.in (ALL_TARGET_OBS): Remove remote-m32r-sdi.o and
remote-mips.o.
(ALLDEPFILES): Remove remote-m32r-sdi.c and remote-mips.c.
* configure.tgt: Remove all references to remote-m32r-sdi.o and
remote-mips.o.
* mips-tdep.c (deprecated_mips_set_processor_regs_hack): Delete
function.
* mips-tdep.h (deprecated_mips_set_processor_regs_hack): Delete
declaration.
* remote-m32r-sdi.c, remote-mips.c: Delete files.
* symfile.c (generic_load, generic_load): Remove comments.

gdb/doc/ChangeLog:
2016-03-31  Pedro Alves  <palves@redhat.com>

* gdb.texinfo (M32R/SDI): Delete node.
(MIPS Embedded): Remove references to the MIPS remote debugging
protocol, PMON and variants, and the associated commands.

enable -Wwrite-strings for gas

We add a new AC_SUBST to warning.m4 so that the test if the warning is
supported is centralized, but the warning can be enabled per directory.

binutils/ChangeLog:

2016-03-31  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>

* configure: Regenerate.

gprof/ChangeLog:

2016-03-31  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>

* configure: Regenerate.

ld/ChangeLog:

2016-03-31  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>

* configure: Regenerate.

opcodes/ChangeLog:

2016-03-31  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>

* configure: Regenerate.

bfd/ChangeLog:

2016-03-31  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>

* configure: Regenerate.
* warning.m4: Add WARN_WRITE_STRINGS AC_SUBST.

gold/ChangeLog:

2016-03-31  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>

* configure: Regenerate.

gas/ChangeLog:

2016-03-31  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>

* Makefile.am: Add WARN_WRITE_STRINGS to WARN_CFLAGS.
* Makefile.in: Regenerate.
* configure: Likewise.

make xtensa_section_rename () take const char *

Xtensa uses it in several macros passing it a literal string, so its convenient
for the argument type to be const char *. However some of the code in
symbols.c seems to assume tc_canonicalize_symbol_name () will return a non
const pointer, and some other target's implementations even modify the
argument, so it seems best to return a char * which means casting away const on
the argument when we return it instead of another string.

gas/ChangeLog:

2016-03-31 Trevor Saunders <tbsaunde+binutils@tbsaunde.org>

* config/tc-xtensa.c (struct rename_section_struct): Make old_name
const.
(xtensa_section_rename): Make argument type const char *.
* config/tc-xtensa.h (xtensa_section_rename): Adjust.

tc-i960.c: add some casts when assigning literals to args[i]

parse_ldconst () takes a char ** as a in / out argument, and sometimes points
args[0] to a constant string.  Then in some cases after parse_ldconst ()
     returns md_assemble () twiddles the contents of arg[0].  So it seems like
     it would take some work to avoid these casts, and its not really clear
     that work is worth it.

gas/ChangeLog:

2016-03-31  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>

* config/tc-i960.c (parse_ldconst): Cast to char * when assigning to
args[0].

cast the arg to md_assemble () to char *

For these targets its not clear how md_assemble can usefully be split up so
that part can take const char *.  There is also a fair number of targets that
need md_assemble () to take a char *, so we can't easily make the argument
const.  So since there isn't many callers it seems easiest to just add a couple
of casts.

gas/ChangeLog:

2016-03-31  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>

* config/tc-m32c.c (m32c_md_end): cast the argument to md_assemble to
char *.
(m32c_indirect_operand): Likewise.
* config/tc-nds32.c (do_pseudo_b): Likewise.
(do_pseudo_bal): Likewise.
(do_pseudo_ls_bhw): Likewise.

cast to char * when assigning to optarg

gas/ChangeLog:

2016-03-31 Trevor Saunders <tbsaunde+binutils@tbsaunde.org>

* as.c (parse_args): Cast literal to char * when assigning to optarg.

work around get_symbol_name () in sparc and ia64

get_symbol_name () returns a char * in a out arg, which means we need to cast
to assign a literal to the variable passed to get_symbol_name (). It seems
like better APIs than get_symbol_name () could be provided, but that seems like
a fair amount of work so just casting seems to be the betterthing to do for
now.

gas/ChangeLog:

2016-03-31 Trevor Saunders <tbsaunde+binutils@tbsaunde.org>

* config/tc-ia64.c (md_assemble): Add temporary variable to pass to
get_symbol_name ().
* config/tc-sparc.c (s_register): Cast a literal to char * in
assignment.

cast literal to char * when assigning to input_line_ptr

various places either directly or indirectly set input_line_pointer to point at
a literal.  Currently lots of places modify the string input_line_pointer
points at, so making it const isn't easy.  Since most if not all of these
places assign to input_line_pointer to parse an expression it would probably be
best to add ways to generate and deal with expressions that doesn't involve
parsing strings, but for now adding some casts seems easiest.

gas/ChangeLog:

2016-03-31  Trevor Saunders  <tbsaunde+binutils@tbsaunde.org>

* config/tc-i960.c (parse_expr): Cast to char * when assigning to
input_line_pointer.
* config/tc-m32r.c (expand_debug_syms): Likewise.
* config/tc-msp430.c (msp430_dstoperand): Likewise.
* config/tc-z80.c (md_begin): Likewise.
* stabs.c (stabs_generate_asm_func): Likewise.

More cases of missing TO_ADDR in ldlang.c

and one extraneous occurrence.

* ldlang.c (TO_ADDR, TO_SIZE, opb_shift): Move earlier in file.
(lang_insert_orphan): Use TO_ADDR in __stop sym calculation.
(print_input_section): Don't use TO_ADDR when printing section
size.
(lang_size_sections_1): Use TO_ADDR in overlay lma calculation.
(lang_size_sections): Use TO_ADDR in relro end calculation.

get rid of K&R style args

gas/ChangeLog:

2016-03-31 Trevor Saunders <tbsaunde+binutils@tbsaunde.org>

* cgen.c: Modernize the way functions declare arguments.
* config/tc-bfin.c: Likewise.
* config/tc-pdp11.c: Likewise.
* literal.c: Likewise.
* read.c: Likewise.
* stabs.c: Likewise.

make some variables unsigned

these places define char arrays containing values greater than 0x80 which
doesn't fit in an 8 bit signed char, but does fit in an unsigned one.

gas/ChangeLog:

2016-03-31 Trevor Saunders <tbsaunde+binutils@tbsaunde.org>

* config/tc-aarch64.c (aarch64_handle_align): Make the type of some
variables unsigned char[].
* config/tc-alpha.c (alpha_handle_align): Likewise.
* config/tc-arm.c (arm_handle_align): Likewise.
* config/tc-z80.c: Likewise.

Don't override definition a shared object by one in a later shared object.

In PR 16979, a reference to malloc is being resolved to an unversioned
reference in libmalloc.so. When linked with --as-needed, however, the
dynamic table does not list libmalloc.so as a DT_NEEDED library.

If we have a reference to an unversioned symbol in a shared object,
and we later see a versioned definition in another shared object, we
were overriding the first definition with the second in the process of
defining the default version. As a result, we no longer think that the
first shared object was actually needed to resolve any symbols, and we
don't list it as a DT_NEEDED library.

This patch fixes the problem by treating the two definitions as separate
symbols, so the second definition does not override the first.

2016-03-30 Cary Coutant <ccoutant@gmail.com>

gold/
PR gold/16979
* symtab.cc (Symbol_table::define_default_version): Check for case
where symbols are both in different shared objects.

Automatic date update in version.in

gdbserver/IPA: Export some functions via global function pointers.

On powerpc64, qSymbol for a function returns the function code address,
and not the descriptor address. Since we emit code calling gdb_collect
and some other functions, we need the descriptor (no way to know the
proper TOC address without it). To get the descriptor address, make
global function pointer variables in the IPA pointing to the relevant
functions and read them instead of asking for them directly via qSymbol.

gdb/gdbserver/ChangeLog:

* linux-aarch64-ipa.c: Rename gdb_agent_get_raw_reg to get_raw_reg.
* linux-amd64-ipa.c: Likewise.
* linux-i386-ipa.c: Likewise.
* linux-s390-ipa.c: Likewise.
* tracepoint.c: IPA-export gdb_collect_ptr instead of gdb_collect,
ditto for get_raw_reg_ptr, get_trace_state_variable_value_ptr,
set_trace_state_variable_value_ptr.
(struct ipa_sym_addresses): Likewise.
(symbol_list): Likewise.
(install_fast_tracepoint): Dereference gdb_collect_ptr instead of
accessing gdb_collect directly.
(gdb_collect_ptr_type): New typedef.
(get_raw_reg_ptr_type): New typedef.
(get_trace_state_variable_value_ptr_type): New typedef.
(set_trace_state_variable_value_ptr_type): New typedef.
(gdb_collect_ptr): New global.
(get_raw_reg_ptr): New global.
(get_trace_state_variable_value_ptr): New global.
(set_trace_state_variable_value_ptr): New global.
(get_raw_reg_func_addr): Dereference get_raw_reg_ptr instead of
accessing get_raw_reg directly.
(get_get_tsv_func_addr): Likewise for
get_trace_state_variable_value_ptr.
(get_set_tsv_func_addr): Likewise for
set_trace_state_variable_value_ptr.
* tracepoint.h: Rename gdb_agent_get_raw_reg to get_raw_reg.

opcodes/arc: Comment and whitespace fixes in opcode table

Add a new comment, and clean up some whitespace issues in the
instruction table.

opcode/ChangeLog:

* arc-nps400-tbl.h: Add a header comment, and fix some whitespace
issues. No functional changes.

ld/testing: Fix error and warning checks in run_dump_test

The options warning_output and error_output to the run_dump_test
function were incorrectly checking the return value from the regexp_diff
function, and so, as a result failing tests were showing as a pass.
Fixed in this commit.

ld/ChangeLog:

* testsuite/lib/ld-lib.exp (run_dump_test): Fix check of return
value from regexp_diff.
* testsuite/ld-elf/orphan-5.l: Fix expected output.
* testsuite/ld-elf/orphan-6.l: Likewise.

Check func against 0 rather than NULL

Variable 'func''s type is CORE_ADDR, so it should be compared with 0
rather than NULL. This causes a build error.

This patch fixes this.

gdb:

2016-03-30 Yao Qi <yao.qi@linaro.org>

* arm-tdep.c (arm_epilogue_frame_this_id): Check 'func' against
0 rather than NULL.

Add arm epilogue unwinder

Nowadays, GDB can't unwind successfully from epilogue on arm,

(gdb) bt
#0  0x76ff65a2 in shr1 () from /home/yao/Source/gnu/build/gdb/testsuite/gdb.reverse/shr1.sl
#1  0x0000869e in main () at /home/yao/Source/gnu/build/gdb/testsuite/../../../binutils-gdb/gdb/testsuite/gdb.reverse/solib-reverse.c:34
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

(gdb) disassemble shr1
Dump of assembler code for function shr1:
   ....
   0x76ff659a <+10>: adds r7, #12
   0x76ff659c <+12>: mov sp, r7
   0x76ff659e <+14>: ldr.w r7, [sp], #4
   0x76ff65a2 <+18>: bx lr
End of assembler dump.

in this case, prologue unwinder is used.  It analyzes the prologue and
get the offsets of saved registers to SP.  However, in epilogue, the
SP has been restored, prologue unwinder gets the registers from the
wrong address, and even the frame id is wrong.

In reverse debugging, this case (program stops at the last instruction
of function) happens quite frequently due to the reverse execution.
There are many test fails due to missing epilogue unwinder.

This adds epilogue unwinder, but the frame cache is still get by
prologue unwinder except that SP is fixed up separately, because SP
is restored in epilogue.

This patch fixes many fails in solib-precsave.exp, and solib-reverse.exp.

gdb:

2016-03-30  Yao Qi  <yao.qi@linaro.org>

* arm-tdep.c: (arm_make_epilogue_frame_cache): New function.
(arm_epilogue_frame_this_id): New function.
(arm_epilogue_frame_prev_register): New function.
(arm_epilogue_frame_sniffer): New function.
(arm_epilogue_frame_unwind): New.
(arm_gdbarch_init): Append unwinder arm_epilogue_frame_unwind.