Remove pst from dwarf_decode_lines_1

Hi,
Parameter 'pst' of function dwarf_decode_lines_1 isn't used except
to compute decode_for_pst_p, which has been got in the caller
dwarf_decode_lines.  I wonder it would be good if we just pass
'decode_for_pst_p'.

gdb:

2014-08-15  Yao Qi  <yao@codesourcery.com>

	* dwarf2read.c (dwarf_decode_lines_1): Remove parameter 'pst'.
	Add parameter 'decode_for_pst_p'.  Callers update.
Set print symbol off in some tests

GDB in default prints the symbol associated on an address, and tests
assume that there is no symbol on address zero.  However, on bare
metal target, address may be mapped to zero and there may be a
symbol.  Then, some tests fail as below:

print const_cast<void *> (0)^M
$8 = (void *) 0x0 <_ftext>^M
(gdb) FAIL: gdb.cp/casts.exp: const_cast of 0

p acp->c1^M
$9 = (A *) 0x0 <_ftext>^M
(gdb) FAIL: gdb.cp/class2.exp: p acp->c1

This patch is to set print symbol off in these tests, like what
I did previously https://sourceware.org/ml/gdb-patches/2014-07/msg00257.html

gdb/testsuite:

2014-08-15  Yao Qi  <yao@codesourcery.com>

	* gdb.cp/casts.exp: Set print symbol off.
	* gdb.cp/class2.exp: Likewise.
	* gdb.cp/overload.exp: Likewise.
	* gdb.cp/templates.exp: Likewise.
daily update
Skip tfile.exp if unable to generate trace file

I added proc generate_tracefile in this patch
https://sourceware.org/ml/gdb-patches/2014-03/msg00591.html but
tfile.exp isn't skipped as changelog entry said:

	* gdb.trace/tfile.exp: Skip the test if generate_tracefile
	return 0.

it is a mistake I made at the last minute.  Patch below fixed it.

gdb/testsuite:

2014-08-15  Yao Qi  <yao@codesourcery.com>

	* gdb.trace/tfile.exp: Return -1 if generate_tracefile returns
	false.
Add "frame.h" #include in gdbarch.h.

This include is needed because gdbarch_dummy_id needs the full
definition of struct frame_id.

gdb/ChangeLog:

        * gdbarch.sh: #include "frame.h" in gdbarch.h.  Delete "struct
        frame_info" partial declaration.
        * gdbarch.h: Regenerate.

Tested on x86_64-linux by rebuilding GDB.
Avoid compiler warnings about incomplete parameter types.

gdb/ChangeLog:

	* dcache.h: Include target.h, to avoid compile time warnings.
(dwarf_decode_lines_1): Delete local basic_block, unused.

	* dwarf2read.c (dwarf_decode_lines_1): Delete local basic_block,
	unused.
(dwarf_decode_lines_1): Delete local "column", unused.

	* dwarf2read.c (dwarf_decode_lines_1): Delete local "column", unused.
Regenerate sim configury.
dwarf2read.c (dwarf_decode_lines_1): Add comment.

	* dwarf2read.c (dwarf_decode_lines_1): Add comment.
(dwarf_decode_lines_1): Move definition of adj_opcode closer to use.

	* dwarf2read.c (dwarf_decode_lines_1): Move definition of adj_opcode
	closer to use.
[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>