Replace hardwired target-is-async check

This commit replaces a hardwired target-is-async check.

gdb/gdbserver/
2014-08-06  Gary Benson  <gbenson@redhat.com>

	* linux-low.c (linux_supports_non_stop): Use target_is_async_p.
Remove duplicated include file

File x86-linux-nat.h is included twice in amd64-linux-nat.c and
i386-linux-nat.c.  This patch is to remove one.

gdb:

2014-08-06  Yao Qi  <yao@codesourcery.com>

	* amd64-linux-nat.c: Remove duplicated include
	"x86-linux-nat.h".
	* i386-linux-nat.c: Likewise.
Rearrange awkwardly-nested conditionals

gdbserver's init_register_cache has some preprocessor conditionals
awkwardly nested around an if..else block.  This commit moves the
conditionals inside the braces to make the code more readable.

gdb/gdbserver/
2014-08-06  Gary Benson  <gbenson@redhat.com>

	* regcache.c (init_register_cache): Move conditionals inside if.
Modify new gold test to pass on powerpc64le

	* testsuite/defsym_test.sh: Allow ppc64le localentry annotation.
Add -momit_lock_prefix=[no|yes] option

This option serves as a workaround for processors, which fail on lock
prefix.

gas/
	* config/tc-i386.c (omit_lock_prefix): New.
	(output_insn): Omit lock prefix if omit_lock_prefix is true.
	(OPTION_omit_lock_prefix): New.
	(md_longopts): Add momit-lock-prefix.
	(md_parse_option): Handle momit-lock-prefix.
	(md_show_usage): Add momit-lock-prefix=[no|yes].
	* doc/c-i386.texi (momit-lock-prefix): Document.

gas/testsuite/

	* gas/i386/i386.exp: Run new tests.
	* gas/i386/omit-lock-no.d: New.
	* gas/i386/omit-lock-yes.d: Ditto.
	* gas/i386/omit-lock.s: Ditto.
Rename variable with confusing name

I saw this gem of not so legible code in solib-svr4.c (scan_dyntag):

	if (dyn_tag == dyntag)

and thought it deserved a small rename.

This just renames variables to be a bit more clear for those who read the
code. I also constified the parameter because, why not. The same was
done in scan_dyntag_auxv as well.

Tested only by rebuilding, since the change was done mechanically.

gdb/Changelog:

2014-08-01  Simon Marchi  <simon.marchi@ericsson.com>

	* solib-svr4.c (scan_dyntag): Rename dyntag and dyn_tag variables.
	(scan_dyntag_auxv): Same.
daily update
Merge WARN and CWARN cases in _bfd_generic_link_add_one_symbol

WARN has always been able to be handled by the CWARN case (WARN was
used when the previous symbols was undef, undefweak or common and thus
must be on the undefs list, so the CWARN test passes).  So let's merge
those two cases.

	* linker.c (WARN, CWARN): Collapse these states to WARN.
	(_bfd_generic_link_add_one_symbol): Use old CWARN case for
	new WARN.
missing changelog for last commit
Don't issue a warning for references in LTO IR to warning symbols

bfd/
	PR ld/16746
	* linker.c (_bfd_generic_link_add_one_symbol): Don't issue a
	warning for references in LTO IR to warning symbols.

ld/testsuite/
	PR ld/16746
	* ld-plugin/lto.exp: Add 4 tests for PR ld/16746.
	* ld-plugin/pr16746a.c: New file.
	* ld-plugin/pr16746b.c: Likewise.
	* ld-plugin/pr16746c.c: Likewise.
	* ld-plugin/pr16746d.c: Likewise.
[Patch, microblaze]: Add wdc.ext.clear and wdc.ext.flush insns

Added two new instructions, wdc.ext.clear and wdc.ext.flush,
to enable MicroBlaze to flush an external cache, which is
used with the new coherency support for multiprocessing.

Signed-off-by:nagaraju <nmekala@xilix.com>
Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
[Patch, microblaze]: Add mlittle-endian and mbig-endian flags

Added support in gas for mlittle-endian and mbig-endian flags
as options.

Updated show usage for MicroBlaze specific assembler options
to include new entries.

Signed-off-by:nagaraju <nmekala@xilix.com>
Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
[Patch, microblaze]: Communicate in larger blocks with the target

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
[Patch, microblaze]: Add slr and shr regs and little-endian breakpoint

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
[Patch, microblaze]: Add mb singlestepping.

Fix prologue analysis for little-endian.
Always provide a frame base.

Signed-off-by: Edgar E. Iglesias <edgar@axis.com>
[Patch, microblaze]: Initial port of microblaze core reading support

Added support for reading notes in linux core dumps
Support for reading of PRSTATUS and PSINFO information for rebuilding
".reg" sections of core dumps at run time.

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>
[Patch, microblaze]: Add initial port of linux gdbserver

add gdb_proc_service_h to gdbserver microblaze-linux

gdbserver needs to initialise the microblaze registers

other archs use this step to run a *_arch_setup() to carry out all
architecture specific setup - may need to add in future

 * add linux-ptrace.o to gdbserver configure
 * gdb/configure.tgt: Set build_gdbserver=yes
 * Update breakpoint opcode
 * fix segfault on connecting gdbserver
 * add microblaze_linux_memory_remove_breakpoint
 * add set_solib_svr4_fetch_link_map_offsets
 * add set_gdbarch_fetch_tls_load_module_address
 * Force reading of r0 as 0, prevent stores

Signed-off-by: David Holsgrove <david.holsgrove@petalogix.com>
Signed-off-by: Nathan Rossi <nathan.rossi@petalogix.com>
[Patch, microblaze]: Added Backtrace support to GDB

Added backtrace support without debugging information.

Earlier backtrace used to work only when debug information is available.
Previous pc & sp values are calculated incorrectly due to which backtrace
was failing.

In this patch, previous frame sp & pc values are calculated correctly
in microblaze_frame_cache function and supplied them to
microblaze_frame_prev_register function

Signed-off-by:nagaraju <nmekala@xilix.com>
[Patch, microblaze]: Initial support for native gdb

microblaze: Follow PPC method of getting setting registers
using PTRACE PEEK/POKE

Signed-off-by: David Holsgrove <david.holsgrove@petalogix.com>
[Patch, gdb]: Robustify inline function support

Signed-off-by: Edgar E. Iglesias <edgar@axis.com>