Fix for remote G Packet message too long error for baremetal.

Prior to version MicroBlaze v8.10.a,EDK 13.1, XMD's gdbserver stub returned 57
registers in response to GDB's G request. Starting with version MicroBlaze
v8.10.a, EDK 13.1, XMD added the slr and shr register, for a count of 59
registers. This patch adds these registers to the expected G response. This patch
fixes the above problem for baremetal and also supports the backward compatibility.

ChangeLog:
2014-07-02  Ajit Agarwal  <ajitkum@xilinx.com>

	* microblaze-tdep.c (microblaze_register_names): Add
	the rshr and rslr register names.
	(microblaze_gdbarch_init): Use of tdesc_has_registers.
	Use of tdesc_find_feature. Use of tdesc_data_alloc.
	Use of tdesc_numbered_register. Use of
	microblaze_register_g_packet_guesses. Use of
	tdesc_use_registers. Use of set_gdbarch_register_type.
	(microblaze_register_g_packet_guesses): New.
	* microblaze-tdep.h (microblaze_reg_num): Add
	field MICROBLAZE_SLR_REGNUM MICROBLAZE_SHR_REGNUM
	MICROBLAZE_NUM_REGS and MICROBLAZE_NUM_CORE_REGS.
	(microblaze_frame_cache): Use of MICROBLAZE_NUM_REGS.
	* features/microblaze-core.xml: New file.
	* features/microblaze-stack-protect.xml: New file.
	* features/microblaze-with-stack-protect.c: New file.
	* features/microblaze-with-stack-protect.xml: New file.
	* features/microblaze.xml: New file.
	* features/microblaze.c: New file.
	* features/Makefile (microblaze-with-stack-protect): Add
	microblaze-with-stack-protect microblaze and
	microblaze-expedite.
	* regformats/microblaze-with-stack-protect.dat: New file.
	* regformats/microblaze.dat: New file.
	* doc/gdb.texinfo (MicroBlaze Features): New.

Signed-off-by:Ajit Agarwal ajitkum@xilinx.com

1 files changed, 67 insertions, 0 deletions

diff --git a/gdb/features/microblaze-core.xml b/gdb/features/microblaze-core.xml
new file mode 100644
index 0000000..5e28773
--- /dev/null
+++ b/gdb/features/microblaze-core.xml
@@ -0,0 +1,67 @@
+<?xml version="1.0"?>
+<!-- Copyright (C) 2014 Free Software Foundation, Inc.
+
+     Copying and distribution of this file, with or without modification,
+     are permitted in any medium without royalty provided the copyright
+     notice and this notice are preserved.  -->
+
+<!DOCTYPE feature SYSTEM "gdb-target.dtd">
+<feature name="org.gnu.gdb.microblaze.core">
+  <reg name="r0" bitsize="32" regnum="0"/>
+  <reg name="r1" bitsize="32" type="data_ptr"/>
+  <reg name="r2" bitsize="32"/>
+  <reg name="r3" bitsize="32"/>
+  <reg name="r4" bitsize="32"/>
+  <reg name="r5" bitsize="32"/>
+  <reg name="r6" bitsize="32"/>
+  <reg name="r7" bitsize="32"/>
+  <reg name="r8" bitsize="32"/>
+  <reg name="r9" bitsize="32"/>
+  <reg name="r10" bitsize="32"/>
+  <reg name="r11" bitsize="32"/>
+  <reg name="r12" bitsize="32"/>
+  <reg name="r13" bitsize="32"/>
+  <reg name="r14" bitsize="32"/>
+  <reg name="r15" bitsize="32"/>
+  <reg name="r16" bitsize="32"/>
+  <reg name="r17" bitsize="32"/>
+  <reg name="r18" bitsize="32"/>
+  <reg name="r19" bitsize="32"/>
+  <reg name="r20" bitsize="32"/>
+  <reg name="r21" bitsize="32"/>
+  <reg name="r22" bitsize="32"/>
+  <reg name="r23" bitsize="32"/>
+  <reg name="r24" bitsize="32"/>
+  <reg name="r25" bitsize="32"/>
+  <reg name="r26" bitsize="32"/>
+  <reg name="r27" bitsize="32"/>
+  <reg name="r28" bitsize="32"/>
+  <reg name="r29" bitsize="32"/>
+  <reg name="r30" bitsize="32"/>
+  <reg name="r31" bitsize="32"/>
+  <reg name="rpc" bitsize="32" type="code_ptr"/>
+  <reg name="rmsr" bitsize="32"/>
+  <reg name="rear" bitsize="32"/>
+  <reg name="resr" bitsize="32"/>
+  <reg name="rfsr" bitsize="32"/>
+  <reg name="rbtr" bitsize="32"/>
+  <reg name="rpvr0" bitsize="32"/>
+  <reg name="rpvr1" bitsize="32"/>
+  <reg name="rpvr2" bitsize="32"/>
+  <reg name="rpvr3" bitsize="32"/>
+  <reg name="rpvr4" bitsize="32"/>
+  <reg name="rpvr5" bitsize="32"/>
+  <reg name="rpvr6" bitsize="32"/>
+  <reg name="rpvr7" bitsize="32"/>
+  <reg name="rpvr8" bitsize="32"/>
+  <reg name="rpvr9" bitsize="32"/>
+  <reg name="rpvr10" bitsize="32"/>
+  <reg name="rpvr11" bitsize="32"/>
+  <reg name="redr" bitsize="32"/>
+  <reg name="rpid" bitsize="32"/>
+  <reg name="rzpr" bitsize="32"/>
+  <reg name="rtlbx" bitsize="32"/>
+  <reg name="rtlbsx" bitsize="32"/>
+  <reg name="rtlblo" bitsize="32"/>
+  <reg name="rtlbhi" bitsize="32"/>
+</feature>