microblaze: Add build_gdbserver=yes to top level configure.tgt

For Microblaze linux toolchains, set the build_gdbserver=yes
to allow driving gdbserver configuration from the upper level

This patch has been absorbed into the original patch to add
linux gdbserver support for Microblaze.

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>

microblaze: Add build_gdbserver=yes to top level configure.tgt

For Microblaze linux toolchains, set the build_gdbserver=yes
to allow driving gdbserver configuration from the upper level

This patch has been absorbed into the original patch to add
linux gdbserver support for Microblaze.

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>

microblaze: Add build_gdbserver=yes to top level configure.tgt

For Microblaze linux toolchains, set the build_gdbserver=yes
to allow driving gdbserver configuration from the upper level

This patch has been absorbed into the original patch to add
linux gdbserver support for Microblaze.

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>

microblaze: Add build_gdbserver=yes to top level configure.tgt

For Microblaze linux toolchains, set the build_gdbserver=yes
to allow driving gdbserver configuration from the upper level

This patch has been absorbed into the original patch to add
linux gdbserver support for Microblaze.

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>

microblaze: Handle framless functions in determining prev reg

Add check for cache->frameless_p in microblaze_frame_prev_register
to handle frameless functions, and correct the behaviour of using
'next' to step through debugging

Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
Signed-off-by: Nagaraju Mekala <nagaraju.mekala@xilinx.com>

Added Backtrace support to GDB

Added backtrace support without debugging information, Earlier backtrace used to work only when debug information is avialable.
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>

Added Backtrace support to GDB

Added backtrace support without debugging information, Earlier backtrace used to work only when debug information is avialable.
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>

Added Backtrace support to GDB

Added backtrace support without debugging information, Earlier backtrace used to work only when debug information is avialable.
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>

Update GDB version number in version.in

microblaze: merge with Petalogix internal xils005 for gdb-7.4.50