gdb: Update gdb for microblaze

* Update recipe for gdb to 7.7
* Update patches for gdb, based on xlnx/master-rebase from the Xilinx
  binutils-gdb repository

Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>

22 files changed, 479 insertions, 459 deletions

diff --git a/recipes-devtools/gdb/files/0009-Add-wdc.ext.clear-and-wdc.ext.flush-insns.patch b/recipes-devtools/gdb/files/0001-Patch-microblaze-Add-wdc.ext.clear-and-wdc.ext.flush.patch
index cb58f603..3575cd7e 100644
--- a/recipes-devtools/gdb/files/0009-Add-wdc.ext.clear-and-wdc.ext.flush-insns.patch
+++ b/recipes-devtools/gdb/files/0001-Patch-microblaze-Add-wdc.ext.clear-and-wdc.ext.flush.patch
@@ -1,6 +1,8 @@
+From 8ab9a20c73acedbb636a41842a681872af8ae1d6 Mon Sep 17 00:00:00 2001
 From: David Holsgrove <david.holsgrove@xilinx.com>
 Date: Wed, 8 May 2013 11:03:36 +1000
-Subject: Add wdc.ext.clear and wdc.ext.flush insns
+Subject: [PATCH 01/16] [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
@@ -10,12 +12,12 @@ Signed-off-by:nagaraju <nmekala@xilix.com>
 Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
 Upstream-Status: Pending
 ---
- opcodes/microblaze-opc.h  |    5 ++++-
- opcodes/microblaze-opcm.h |    6 +++---
+ opcodes/microblaze-opc.h  | 5 ++++-
+ opcodes/microblaze-opcm.h | 6 +++---
  2 files changed, 7 insertions(+), 4 deletions(-)
 
 diff --git a/opcodes/microblaze-opc.h b/opcodes/microblaze-opc.h
-index e9da12a..dd56ab5 100644
+index e3cc1d9..f453097 100644
 --- a/opcodes/microblaze-opc.h
 +++ b/opcodes/microblaze-opc.h
 @@ -91,6 +91,7 @@
@@ -46,7 +48,7 @@ index e9da12a..dd56ab5 100644
    {"mfs",   INST_TYPE_RD_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_MFS, 0x94008000, OPCODE_MASK_H23S, mfs, special_inst },
    {"br",    INST_TYPE_R2, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x98000000, OPCODE_MASK_H124, br, branch_inst },
 diff --git a/opcodes/microblaze-opcm.h b/opcodes/microblaze-opcm.h
-index 124cdec..8e531f9 100644
+index 6868389..8f5c1cb 100644
 --- a/opcodes/microblaze-opcm.h
 +++ b/opcodes/microblaze-opcm.h
 @@ -31,9 +31,9 @@ enum microblaze_instr
@@ -63,5 +65,5 @@ index 124cdec..8e531f9 100644
    brki, beqi, beqid, bnei, bneid, blti, bltid, blei, bleid, bgti,
    bgtid, bgei, bgeid, lbu, lbur, lhu, lhur, lw, lwr, lwx, sb, sbr, sh, 
 -- 
-1.7.9.5
+1.9.0
 
diff --git a/recipes-devtools/gdb/files/0002-Initial-port-of-core-reading-support.patch b/recipes-devtools/gdb/files/0003-Patch-microblaze-Initial-port-of-microblaze-core-rea.patch
index f0020ed4..5d856408 100644
--- a/recipes-devtools/gdb/files/0002-Initial-port-of-core-reading-support.patch
+++ b/recipes-devtools/gdb/files/0003-Patch-microblaze-Initial-port-of-microblaze-core-rea.patch
@@ -1,24 +1,26 @@
+From da27c7161c676550f5fe8a4e0f7f395e5e0d4770 Mon Sep 17 00:00:00 2001
 From: David Holsgrove <david.holsgrove@petalogix.com>
 Date: Fri, 18 May 2012 11:49:50 +1000
-Subject: Initial port of core reading support
+Subject: [PATCH 03/16] [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@petalogix.com>
-Signed-off-by: Nathan Rossi <nathan.rossi@petalogix.com>
+Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
+Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>
 Upstream-Status: Pending
 ---
- bfd/elf32-microblaze.c      |   64 ++++++++++++++++++++++++++++++
- gdb/configure.tgt           |    2 +-
- gdb/microblaze-linux-tdep.c |   56 +++++++++++++++++++++++++++
- gdb/microblaze-tdep.c       |   90 +++++++++++++++++++++++++++++++++++++++++++
- gdb/microblaze-tdep.h       |   28 ++++++++++++++
- 5 files changed, 239 insertions(+), 1 deletion(-)
+ bfd/elf32-microblaze.c      | 64 ++++++++++++++++++++++++++++++++
+ gdb/configure.tgt           |  2 +-
+ gdb/microblaze-linux-tdep.c | 61 +++++++++++++++++++++++++++++++
+ gdb/microblaze-tdep.c       | 89 +++++++++++++++++++++++++++++++++++++++++++++
+ gdb/microblaze-tdep.h       | 28 ++++++++++++++
+ 5 files changed, 243 insertions(+), 1 deletion(-)
 
 diff --git a/bfd/elf32-microblaze.c b/bfd/elf32-microblaze.c
-index 8aafe72..365546c 100644
+index 9837b18..cbd18f0 100644
 --- a/bfd/elf32-microblaze.c
 +++ b/bfd/elf32-microblaze.c
 @@ -668,6 +668,67 @@ microblaze_elf_is_local_label_name (bfd *abfd, const char *name)
@@ -89,7 +91,7 @@ index 8aafe72..365546c 100644
  /* The microblaze linker (like many others) needs to keep track of
     the number of relocs that it decides to copy as dynamic relocs in
     check_relocs for each symbol. This is so that it can later discard
-@@ -3499,4 +3560,7 @@ microblaze_elf_add_symbol_hook (bfd *abfd,
+@@ -3506,4 +3567,7 @@ microblaze_elf_add_symbol_hook (bfd *abfd,
  #define elf_backend_size_dynamic_sections       microblaze_elf_size_dynamic_sections
  #define elf_backend_add_symbol_hook            microblaze_elf_add_symbol_hook
  
@@ -98,10 +100,10 @@ index 8aafe72..365546c 100644
 +
  #include "elf32-target.h"
 diff --git a/gdb/configure.tgt b/gdb/configure.tgt
-index 720d3d3..1285aac 100644
+index 01311b2..9297c56 100644
 --- a/gdb/configure.tgt
 +++ b/gdb/configure.tgt
-@@ -339,7 +339,7 @@ mep-*-*)
+@@ -340,7 +340,7 @@ mep-*-*)
  
  microblaze*-linux-*|microblaze*-*-linux*)
         # Target: Xilinx MicroBlaze running Linux
@@ -111,7 +113,7 @@ index 720d3d3..1285aac 100644
         gdb_sim=../sim/microblaze/libsim.a
         ;;
 diff --git a/gdb/microblaze-linux-tdep.c b/gdb/microblaze-linux-tdep.c
-index 69c333e..9dc4f85 100644
+index 8d360eb..7e6b61b 100644
 --- a/gdb/microblaze-linux-tdep.c
 +++ b/gdb/microblaze-linux-tdep.c
 @@ -32,6 +32,7 @@
@@ -122,7 +124,7 @@ index 69c333e..9dc4f85 100644
  #include "trad-frame.h"
  #include "frame-unwind.h"
  #include "tramp-frame.h"
-@@ -139,6 +140,43 @@ static struct tramp_frame microblaze_linux_sighandler_tramp_frame =
+@@ -116,6 +117,43 @@ static struct tramp_frame microblaze_linux_sighandler_tramp_frame =
    microblaze_linux_sighandler_cache_init
  };
  
@@ -166,7 +168,7 @@ index 69c333e..9dc4f85 100644
  
  static void
  microblaze_linux_init_abi (struct gdbarch_info info,
-@@ -146,6 +184,10 @@ microblaze_linux_init_abi (struct gdbarch_info info,
+@@ -123,6 +161,10 @@ microblaze_linux_init_abi (struct gdbarch_info info,
  {
    struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
  
@@ -177,10 +179,11 @@ index 69c333e..9dc4f85 100644
    linux_init_abi (info, gdbarch);
  
    set_gdbarch_memory_remove_breakpoint (gdbarch,
-@@ -159,6 +201,20 @@ microblaze_linux_init_abi (struct gdbarch_info info,
+@@ -135,6 +177,25 @@ microblaze_linux_init_abi (struct gdbarch_info info,
+   /* Trampolines.  */
    tramp_frame_prepend_unwinder (gdbarch,
                                 &microblaze_linux_sighandler_tramp_frame);
- 
++
 +  /* BFD target for core files.  */
 +  if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
 +    set_gdbarch_gcore_bfd_target (gdbarch, "elf32-microblaze");
@@ -195,14 +198,18 @@ index 69c333e..9dc4f85 100644
 +  set_gdbarch_regset_from_core_section (gdbarch,
 +                                       microblaze_regset_from_core_section);
 +
-   /* Enable TLS support.  */
-   set_gdbarch_fetch_tls_load_module_address (gdbarch,
-                                              svr4_fetch_objfile_link_map);
++  /* Enable TLS support.  */
++  set_gdbarch_fetch_tls_load_module_address (gdbarch,
++                                             svr4_fetch_objfile_link_map);
++
+ }
+ 
+ /* -Wmissing-prototypes */
 diff --git a/gdb/microblaze-tdep.c b/gdb/microblaze-tdep.c
-index 079d34e..cfc227d 100644
+index 14c1b52..36cf1ca 100644
 --- a/gdb/microblaze-tdep.c
 +++ b/gdb/microblaze-tdep.c
-@@ -146,6 +146,14 @@ microblaze_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp,
+@@ -145,6 +145,14 @@ microblaze_push_dummy_code (struct gdbarch *gdbarch, CORE_ADDR sp,
    return sp;
  }
  
@@ -217,7 +224,7 @@ index 079d34e..cfc227d 100644
  
  static CORE_ADDR
  microblaze_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
-@@ -570,6 +578,12 @@ microblaze_frame_base_address (struct frame_info *next_frame,
+@@ -536,6 +544,12 @@ microblaze_frame_base_address (struct frame_info *next_frame,
    return cache->base;
  }
  
@@ -230,7 +237,7 @@ index 079d34e..cfc227d 100644
  static const struct frame_base microblaze_frame_base =
  {
    &microblaze_frame_unwind,
-@@ -698,6 +712,70 @@ microblaze_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int reg)
+@@ -664,6 +678,70 @@ microblaze_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int reg)
    return dwarf2_to_reg_map[reg];
  }
  
@@ -301,8 +308,8 @@ index 079d34e..cfc227d 100644
  static struct gdbarch *
  microblaze_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
  {
-@@ -713,6 +791,11 @@ microblaze_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
-   tdep = XMALLOC (struct gdbarch_tdep);
+@@ -679,6 +757,11 @@ microblaze_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
+   tdep = XNEW (struct gdbarch_tdep);
    gdbarch = gdbarch_alloc (&info, tdep);
  
 +  tdep->gregset = NULL;
@@ -313,22 +320,21 @@ index 079d34e..cfc227d 100644
    set_gdbarch_long_double_bit (gdbarch, 128);
  
    set_gdbarch_num_regs (gdbarch, MICROBLAZE_NUM_REGS);
-@@ -761,6 +844,13 @@ microblaze_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
-   dwarf2_append_unwinders (gdbarch);
+@@ -726,6 +809,12 @@ microblaze_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
    frame_unwind_append_unwinder (gdbarch, &microblaze_frame_unwind);
    frame_base_append_sniffer (gdbarch, dwarf2_frame_base_sniffer);
-+  //frame_base_append_sniffer (gdbarch, microblaze_frame_sniffer);
-+
+ 
 +  /* If we have register sets, enable the generic core file support.  */
 +  if (tdep->gregset) {
 +      set_gdbarch_regset_from_core_section (gdbarch,
 +                                          microblaze_regset_from_core_section);
 +  }
- 
++
    return gdbarch;
  }
+ 
 diff --git a/gdb/microblaze-tdep.h b/gdb/microblaze-tdep.h
-index 9fdbda7..7de4463 100644
+index a532092..fec24b9 100644
 --- a/gdb/microblaze-tdep.h
 +++ b/gdb/microblaze-tdep.h
 @@ -22,8 +22,22 @@
@@ -354,9 +360,9 @@ index 9fdbda7..7de4463 100644
  };
  
  struct microblaze_frame_cache
-@@ -118,4 +132,18 @@ enum microblaze_regnum
- #define MICROBLAZE_BREAKPOINT {0xba, 0x0c, 0x00, 0x18}
- #define MICROBLAZE_BREAKPOINT_LE {0x18, 0x00, 0x0c, 0xba}
+@@ -117,4 +131,18 @@ enum microblaze_regnum
+    Only used for native debugging.  */
+ #define MICROBLAZE_BREAKPOINT {0xb9, 0xcc, 0x00, 0x60}
  
 +extern void microblaze_supply_gregset (const struct microblaze_gregset *gregset,
 +                                    struct regcache *regcache,
@@ -374,5 +380,5 @@ index 9fdbda7..7de4463 100644
 +
  #endif /* microblaze-tdep.h */
 -- 
-1.7.9.5
+1.9.0
 
diff --git a/recipes-devtools/gdb/files/0004-Patch-microblaze-Communicate-in-larger-blocks-with-t.patch b/recipes-devtools/gdb/files/0004-Patch-microblaze-Communicate-in-larger-blocks-with-t.patch
new file mode 100644
index 00000000..b14e4092
--- /dev/null
+++ b/recipes-devtools/gdb/files/0004-Patch-microblaze-Communicate-in-larger-blocks-with-t.patch
@@ -0,0 +1,67 @@
+From 26e124f0d78233b1d976bd4b787f6a7866bcb7e7 Mon Sep 17 00:00:00 2001
+From: nagaraju <nmekala@xilix.com>
+Date: Wed, 4 Jan 2012 16:59:33 +0530
+Subject: [PATCH 04/16] [Patch, microblaze]: Communicate in larger blocks with
+ the target
+
+Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
+Upstream-Status: Pending
+---
+ gdb/microblaze-tdep.c | 25 ++++++++++++++++++++++---
+ 1 file changed, 22 insertions(+), 3 deletions(-)
+
+diff --git a/gdb/microblaze-tdep.c b/gdb/microblaze-tdep.c
+index 36cf1ca..76e87b3 100644
+--- a/gdb/microblaze-tdep.c
++++ b/gdb/microblaze-tdep.c
+@@ -242,6 +242,10 @@ microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc,
+   int flags = 0;
+   int save_hidden_pointer_found = 0;
+   int non_stack_instruction_found = 0;
++  int n_insns;
++  unsigned long *insn_block;
++  gdb_byte *buf_block;
++  int ti, tj;
+ 
+   /* Find the start of this function.  */
+   find_pc_partial_function (pc, &name, &func_addr, &func_end);
+@@ -281,9 +285,23 @@ microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc,
+                    name, paddress (gdbarch, func_addr), 
+                    paddress (gdbarch, stop));
+ 
++/* Do a block read to minimize the transaction with the Debug Agent */
++  n_insns = (stop == func_addr) ? 1 : ((stop - func_addr) / INST_WORD_SIZE);
++  insn_block = (unsigned long *)calloc(n_insns, sizeof(unsigned long));
++  buf_block = (gdb_byte *)calloc(n_insns * INST_WORD_SIZE, sizeof(gdb_byte));
++
++  target_read_memory (func_addr, buf_block, n_insns * INST_WORD_SIZE );
++
++  for(ti = 0; ti < n_insns; ti++){
++         insn_block[ti] = 0;
++         for( tj = ti * INST_WORD_SIZE; tj < (ti + 1) * INST_WORD_SIZE; tj++ )
++                 insn_block[ti] = (insn_block[ti] << 8) | buf_block[tj];
++  }
++
+   for (addr = func_addr; addr < stop; addr += INST_WORD_SIZE)
+     {
+-      insn = microblaze_fetch_instruction (addr);
++     //insn = microblaze_fetch_instruction (addr);
++      insn = insn_block[(addr - func_addr) / INST_WORD_SIZE];
+       op = microblaze_decode_insn (insn, &rd, &ra, &rb, &imm);
+       microblaze_debug ("%s %08lx\n", paddress (gdbarch, pc), insn);
+ 
+@@ -409,8 +427,9 @@ microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc,
+      part of the prologue.  */
+   if (save_hidden_pointer_found)
+     prologue_end_addr -= INST_WORD_SIZE;
+-
+-  return prologue_end_addr;
++    free(insn_block);
++    free(buf_block);
++    return prologue_end_addr;
+ }
+ 
+ static CORE_ADDR
+-- 
+1.9.0
+
diff --git a/recipes-devtools/gdb/files/0011-Patch-microblaze-Add-mb-singlestepping.patch b/recipes-devtools/gdb/files/0005-Patch-microblaze-Add-mb-singlestepping.patch
index 51b2e36e..e490f02a 100644
--- a/recipes-devtools/gdb/files/0011-Patch-microblaze-Add-mb-singlestepping.patch
+++ b/recipes-devtools/gdb/files/0005-Patch-microblaze-Add-mb-singlestepping.patch
@@ -1,64 +1,68 @@
+From 5c3a08f407e1cbee5b0a4ca6092165b97acddda5 Mon Sep 17 00:00:00 2001
 From: "Edgar E. Iglesias" <edgar@axis.com>
 Date: Fri, 24 Feb 2012 11:52:30 +0100
-Subject: Add mb singlestepping.
+Subject: [PATCH 05/16] [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>
-
-Conflicts:
-
-        gdb/microblaze-tdep.c
-
-Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
 Upstream-Status: Pending
 ---
- gdb/microblaze-tdep.c |  117 +++++++++++++++++++++++++++++++++++++++++++++++--
- 1 file changed, 114 insertions(+), 3 deletions(-)
+ gdb/microblaze-tdep.c | 123 ++++++++++++++++++++++++++++++++++++++++++++------
+ 1 file changed, 108 insertions(+), 15 deletions(-)
 
 diff --git a/gdb/microblaze-tdep.c b/gdb/microblaze-tdep.c
-index a245169..9c9f3a9 100644
+index 76e87b3..50b68d2 100644
 --- a/gdb/microblaze-tdep.c
 +++ b/gdb/microblaze-tdep.c
-@@ -282,6 +282,8 @@ microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc,
-   int flags = 0;
+@@ -243,9 +243,7 @@ microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc,
    int save_hidden_pointer_found = 0;
    int non_stack_instruction_found = 0;
-+  int n_insns;
+   int n_insns;
+-  unsigned long *insn_block;
+-  gdb_byte *buf_block;
+-  int ti, tj;
 +  unsigned int *insn_block;
  
    /* Find the start of this function.  */
    find_pc_partial_function (pc, &name, &func_addr, &func_end);
-@@ -321,11 +323,17 @@ microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc,
-                    name, paddress (gdbarch, func_addr), 
-                    paddress (gdbarch, stop));
+@@ -287,23 +285,16 @@ microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc,
  
-+  /* Do a block read to minimize the transaction with the Debug Agent */
-+  n_insns = (stop == func_addr) ? 1 : ((stop - func_addr) / INST_WORD_SIZE);
+ /* Do a block read to minimize the transaction with the Debug Agent */
+   n_insns = (stop == func_addr) ? 1 : ((stop - func_addr) / INST_WORD_SIZE);
+-  insn_block = (unsigned long *)calloc(n_insns, sizeof(unsigned long));
+-  buf_block = (gdb_byte *)calloc(n_insns * INST_WORD_SIZE, sizeof(gdb_byte));
 +  insn_block = calloc(n_insns, sizeof(unsigned long));
-+
+ 
+-  target_read_memory (func_addr, buf_block, n_insns * INST_WORD_SIZE );
+-
+-  for(ti = 0; ti < n_insns; ti++){
+-         insn_block[ti] = 0;
+-         for( tj = ti * INST_WORD_SIZE; tj < (ti + 1) * INST_WORD_SIZE; tj++ )
+-                 insn_block[ti] = (insn_block[ti] << 8) | buf_block[tj];
+-  }
 +  target_read_memory (func_addr, (void*) insn_block, n_insns * INST_WORD_SIZE );
-+
+ 
    for (addr = func_addr; addr < stop; addr += INST_WORD_SIZE)
      {
-       insn = microblaze_fetch_instruction (addr);
+      //insn = microblaze_fetch_instruction (addr);
+       insn = insn_block[(addr - func_addr) / INST_WORD_SIZE];
        op = microblaze_decode_insn (insn, &rd, &ra, &rb, &imm);
 -      microblaze_debug ("%s %08lx\n", paddress (gdbarch, pc), insn);
 +      microblaze_debug ("%s %08lx op=%x r%d r%d imm=%d\n", paddress (gdbarch, addr), insn, op, rd, ra, imm);
  
        /* This code is very sensitive to what functions are present in the
          prologue.  It assumes that the (addi, addik, swi, sw) can be the 
-@@ -449,7 +457,7 @@ microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc,
-      part of the prologue.  */
+@@ -428,7 +419,6 @@ microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc,
    if (save_hidden_pointer_found)
      prologue_end_addr -= INST_WORD_SIZE;
--
-+    free(insn_block);
-   return prologue_end_addr;
+     free(insn_block);
+-    free(buf_block);
+     return prologue_end_addr;
  }
  
-@@ -523,6 +531,7 @@ microblaze_frame_cache (struct frame_info *next_frame, void **this_cache)
+@@ -502,6 +492,7 @@ microblaze_frame_cache (struct frame_info *next_frame, void **this_cache)
  
    func = get_frame_func (next_frame);
  
@@ -66,7 +70,7 @@ index a245169..9c9f3a9 100644
    cache->pc = get_frame_address_in_block (next_frame);
  
    return cache;
-@@ -539,7 +548,7 @@ microblaze_frame_this_id (struct frame_info *next_frame, void **this_cache,
+@@ -518,7 +509,7 @@ microblaze_frame_this_id (struct frame_info *next_frame, void **this_cache,
    if (cache->base == 0)
      return;
  
@@ -75,7 +79,7 @@ index a245169..9c9f3a9 100644
  }
  
  static struct value *
-@@ -682,6 +691,107 @@ microblaze_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type)
+@@ -661,6 +652,107 @@ microblaze_stabs_argument_has_addr (struct gdbarch *gdbarch, struct type *type)
    return (TYPE_LENGTH (type) == 16);
  }
  
@@ -183,8 +187,8 @@ index a245169..9c9f3a9 100644
  static void
  microblaze_write_pc (struct regcache *regcache, CORE_ADDR pc)
  {
-@@ -832,6 +942,7 @@ microblaze_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
-   set_gdbarch_memory_remove_breakpoint (gdbarch, microblaze_linux_memory_remove_breakpoint);
+@@ -809,6 +901,7 @@ microblaze_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
+   set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
  
    set_gdbarch_breakpoint_from_pc (gdbarch, microblaze_breakpoint_from_pc);
 +  set_gdbarch_software_single_step (gdbarch, microblaze_software_single_step);
@@ -192,5 +196,5 @@ index a245169..9c9f3a9 100644
    set_gdbarch_frame_args_skip (gdbarch, 8);
  
 -- 
-1.7.9.5
+1.9.0
 
diff --git a/recipes-devtools/gdb/files/0001-Add-initial-port-of-linux-gdbserver.patch b/recipes-devtools/gdb/files/0006-Patch-microblaze-Add-initial-port-of-linux-gdbserver.patch
index 5c195538..cb2eec18 100644
--- a/recipes-devtools/gdb/files/0001-Add-initial-port-of-linux-gdbserver.patch
+++ b/recipes-devtools/gdb/files/0006-Patch-microblaze-Add-initial-port-of-linux-gdbserver.patch
@@ -1,6 +1,8 @@
+From 2112c9ded01ddd08f0e31e5ce23eecac6c04e8c4 Mon Sep 17 00:00:00 2001
 From: David Holsgrove <david.holsgrove@petalogix.com>
 Date: Mon, 6 Feb 2012 10:28:29 +1000
-Subject: Add initial port of linux gdbserver
+Subject: [PATCH 06/16] [Patch, microblaze]: Add initial port of linux
+ gdbserver
 
 add gdb_proc_service_h to gdbserver microblaze-linux
 
@@ -10,6 +12,7 @@ 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
@@ -21,21 +24,24 @@ Signed-off-by: David Holsgrove <david.holsgrove@petalogix.com>
 Signed-off-by: Nathan Rossi <nathan.rossi@petalogix.com>
 Upstream-Status: Pending
 ---
- gdb/configure.host                   |    3 +
- gdb/gdbserver/linux-microblaze-low.c |  228 ++++++++++++++++++++++++++++++++++
- gdb/microblaze-linux-tdep.c          |   30 ++++-
- gdb/microblaze-tdep.c                |   35 ++++++
- gdb/microblaze-tdep.h                |    3 +-
- gdb/regformats/reg-microblaze.dat    |   39 ++++++
- 6 files changed, 336 insertions(+), 2 deletions(-)
+ gdb/configure.host                   |   3 +
+ gdb/configure.tgt                    |   1 +
+ gdb/gdbserver/Makefile.in            |   4 +
+ gdb/gdbserver/configure.srv          |   6 +
+ gdb/gdbserver/linux-microblaze-low.c | 228 +++++++++++++++++++++++++++++++++++
+ gdb/microblaze-linux-tdep.c          |  25 +++-
+ gdb/microblaze-tdep.c                |  45 ++++++-
+ gdb/microblaze-tdep.h                |   3 +-
+ gdb/regformats/reg-microblaze.dat    |  39 ++++++
+ 9 files changed, 348 insertions(+), 6 deletions(-)
  create mode 100644 gdb/gdbserver/linux-microblaze-low.c
  create mode 100644 gdb/regformats/reg-microblaze.dat
 
 diff --git a/gdb/configure.host b/gdb/configure.host
-index 85f4491..98b0f43 100644
+index 15a8288..76cc5fe 100644
 --- a/gdb/configure.host
 +++ b/gdb/configure.host
-@@ -47,6 +47,7 @@ i[34567]86*)          gdb_host_cpu=i386 ;;
+@@ -59,6 +59,7 @@ i[34567]86*)          gdb_host_cpu=i386 ;;
  m68*)                  gdb_host_cpu=m68k ;;
  m88*)                  gdb_host_cpu=m88k ;;
  mips*)                 gdb_host_cpu=mips ;;
@@ -43,15 +49,73 @@ index 85f4491..98b0f43 100644
  powerpc* | rs6000)     gdb_host_cpu=powerpc ;;
  sparcv9 | sparc64)     gdb_host_cpu=sparc ;;
  s390*)                 gdb_host_cpu=s390 ;;
-@@ -126,6 +127,8 @@ mips*-*-netbsd* | mips*-*-knetbsd*-gnu)
+@@ -133,6 +134,8 @@ mips*-*-netbsd* | mips*-*-knetbsd*-gnu)
                         gdb_host=nbsd ;;
  mips64*-*-openbsd*)    gdb_host=obsd64 ;;
  
-+microblaze*-*linux*)   gdb_host=linux ;;
++microblaze*-*linux*)    gdb_host=linux ;;
 +
- powerpc-*-aix* | rs6000-*-*)
+ powerpc-*-aix* | rs6000-*-* | powerpc64-*-aix*)
                         gdb_host=aix ;;
  powerpc*-*-freebsd*)   gdb_host=fbsd ;;
+diff --git a/gdb/configure.tgt b/gdb/configure.tgt
+index 9297c56..3a7951a 100644
+--- a/gdb/configure.tgt
++++ b/gdb/configure.tgt
+@@ -343,6 +343,7 @@ microblaze*-linux-*|microblaze*-*-linux*)
+        gdb_target_obs="microblaze-tdep.o microblaze-linux-tdep.o microblaze-rom.o glibc-tdep.o \
+                        monitor.o dsrec.o solib-svr4.o symfile-mem.o linux-tdep.o"
+        gdb_sim=../sim/microblaze/libsim.a
++       build_gdbserver=yes
+        ;;
+ microblaze*-*-*)
+        # Target: Xilinx MicroBlaze running standalone
+diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in
+index f773fa2..a11ace1 100644
+--- a/gdb/gdbserver/Makefile.in
++++ b/gdb/gdbserver/Makefile.in
+@@ -148,6 +148,7 @@ SFILES=     $(srcdir)/gdbreplay.c $(srcdir)/inferiors.c $(srcdir)/dll.c \
+        $(srcdir)/linux-ia64-low.c $(srcdir)/linux-low.c \
+        $(srcdir)/linux-m32r-low.c \
+        $(srcdir)/linux-m68k-low.c $(srcdir)/linux-mips-low.c \
++       $(srcdir)/linux-microblaze-low.c \
+        $(srcdir)/linux-nios2-low.c \
+        $(srcdir)/linux-ppc-low.c \
+        $(srcdir)/linux-s390-low.c \
+@@ -329,6 +330,7 @@ clean:
+        rm -f arm-with-iwmmxt.c
+        rm -f arm-with-vfpv2.c arm-with-vfpv3.c arm-with-neon.c
+        rm -f mips-linux.c mips64-linux.c
++       rm -f microblaze-linux.c
+        rm -f nios2-linux.c
+        rm -f powerpc-32.c powerpc-32l.c powerpc-64l.c powerpc-e500l.c
+        rm -f powerpc-altivec32l.c powerpc-cell32l.c powerpc-vsx32l.c
+@@ -612,6 +614,8 @@ reg-m68k.c : $(srcdir)/../regformats/reg-m68k.dat $(regdat_sh)
+        $(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-m68k.dat reg-m68k.c
+ reg-cf.c : $(srcdir)/../regformats/reg-cf.dat $(regdat_sh)
+        $(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-cf.dat reg-cf.c
++microblaze-linux.c : $(srcdir)/../regformats/reg-microblaze.dat $(regdat_sh)
++       $(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-microblaze.dat microblaze-linux.c
+ mips-linux.c : $(srcdir)/../regformats/mips-linux.dat $(regdat_sh)
+        $(SHELL) $(regdat_sh) $(srcdir)/../regformats/mips-linux.dat mips-linux.c
+ mips-dsp-linux.c : $(srcdir)/../regformats/mips-dsp-linux.dat $(regdat_sh)
+diff --git a/gdb/gdbserver/configure.srv b/gdb/gdbserver/configure.srv
+index cc4f53d..359c756 100644
+--- a/gdb/gdbserver/configure.srv
++++ b/gdb/gdbserver/configure.srv
+@@ -198,6 +198,12 @@ case "${target}" in
+                        srv_linux_usrregs=yes
+                        srv_linux_thread_db=yes
+                        ;;
++  microblaze*-*-linux*)        srv_regobj=microblaze-linux.o
++                       srv_tgtobj="$srv_linux_obj linux-microblaze-low.o"
++                       srv_linux_usrregs=yes
++                       srv_linux_regsets=yes
++                       srv_linux_thread_db=yes
++                       ;;
+   nios2*-*-linux*)     srv_regobj="nios2-linux.o"
+                        srv_tgtobj="$srv_linux_obj linux-nios2-low.o"
+                        srv_xmlfiles="nios2-linux.xml"
 diff --git a/gdb/gdbserver/linux-microblaze-low.c b/gdb/gdbserver/linux-microblaze-low.c
 new file mode 100644
 index 0000000..279df9f
@@ -288,10 +352,10 @@ index 0000000..279df9f
 +}
 \ No newline at end of file
 diff --git a/gdb/microblaze-linux-tdep.c b/gdb/microblaze-linux-tdep.c
-index 99fc497..69c333e 100644
+index 7e6b61b..cf58e21 100644
 --- a/gdb/microblaze-linux-tdep.c
 +++ b/gdb/microblaze-linux-tdep.c
-@@ -37,6 +37,22 @@
+@@ -38,6 +38,22 @@
  #include "tramp-frame.h"
  #include "linux-tdep.h"
  
@@ -314,7 +378,7 @@ index 99fc497..69c333e 100644
  static int
  microblaze_linux_memory_remove_breakpoint (struct gdbarch *gdbarch, 
                                            struct bp_target_info *bp_tgt)
-@@ -46,20 +62,27 @@ microblaze_linux_memory_remove_breakpoint (struct gdbarch *gdbarch,
+@@ -47,20 +63,27 @@ microblaze_linux_memory_remove_breakpoint (struct gdbarch *gdbarch,
    int val;
    int bplen;
    gdb_byte old_contents[BREAKPOINT_MAX];
@@ -343,23 +407,11 @@ index 99fc497..69c333e 100644
    return val;
  }
  
-@@ -135,6 +158,11 @@ microblaze_linux_init_abi (struct gdbarch_info info,
-   /* Trampolines.  */
-   tramp_frame_prepend_unwinder (gdbarch,
-                                &microblaze_linux_sighandler_tramp_frame);
-+
-+  /* Enable TLS support.  */
-+  set_gdbarch_fetch_tls_load_module_address (gdbarch,
-+                                             svr4_fetch_objfile_link_map);
-+
- }
- 
- /* -Wmissing-prototypes */
 diff --git a/gdb/microblaze-tdep.c b/gdb/microblaze-tdep.c
-index dcf556f..079d34e 100644
+index 50b68d2..1c6dbfe 100644
 --- a/gdb/microblaze-tdep.c
 +++ b/gdb/microblaze-tdep.c
-@@ -157,6 +157,39 @@ microblaze_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
+@@ -164,6 +164,39 @@ microblaze_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
    return sp;
  }
  
@@ -399,20 +451,49 @@ index dcf556f..079d34e 100644
  static const gdb_byte *
  microblaze_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pc, 
                                int *len)
-@@ -707,6 +740,8 @@ microblaze_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
+@@ -291,8 +324,8 @@ microblaze_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc,
+ 
+   for (addr = func_addr; addr < stop; addr += INST_WORD_SIZE)
+     {
+-     //insn = microblaze_fetch_instruction (addr);
+-      insn = insn_block[(addr - func_addr) / INST_WORD_SIZE];
++      insn = microblaze_fetch_instruction (addr);
++      //insn = insn_block[(addr - func_addr) / INST_WORD_SIZE];
+       op = microblaze_decode_insn (insn, &rd, &ra, &rb, &imm);
+       microblaze_debug ("%s %08lx op=%x r%d r%d imm=%d\n", paddress (gdbarch, addr), insn, op, rd, ra, imm);
+ 
+@@ -724,13 +757,15 @@ microblaze_software_single_step (struct frame_info *frame)
+          rb = get_frame_register_unsigned (frame, lrb);
+        else
+          rb = 0;
++
+        stepbreaks[1].address = microblaze_get_target_address (insn, immfound, imm, pc, ra, rb, &targetvalid, &unconditionalbranch);
+-        microblaze_debug ("single-step uncondbr=%d targetvalid=%d target=%x\n", unconditionalbranch, targetvalid, stepbreaks[1].address);
++       microblaze_debug ("single-step uncondbr=%d targetvalid=%d target=%x\n", unconditionalbranch, targetvalid, stepbreaks[1].address);
++
+        if (unconditionalbranch)
+          stepbreaks[0].valid = FALSE; /* This is a unconditional branch: will not come to the next address */
+        if (targetvalid && (stepbreaks[0].valid == FALSE ||
+                            (stepbreaks[0].address != stepbreaks[1].address))
+-                       && (stepbreaks[1].address != pc)) {
++                       && (stepbreaks[1].address != pc)) {
+          stepbreaks[1].valid = TRUE;
+        } else {
+          stepbreaks[1].valid = FALSE;
+@@ -900,6 +935,8 @@ microblaze_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
    /* Stack grows downward.  */
    set_gdbarch_inner_than (gdbarch, core_addr_lessthan);
  
 +  set_gdbarch_memory_remove_breakpoint (gdbarch, microblaze_linux_memory_remove_breakpoint);
 +
    set_gdbarch_breakpoint_from_pc (gdbarch, microblaze_breakpoint_from_pc);
+   set_gdbarch_software_single_step (gdbarch, microblaze_software_single_step);
  
-   set_gdbarch_frame_args_skip (gdbarch, 8);
 diff --git a/gdb/microblaze-tdep.h b/gdb/microblaze-tdep.h
-index ff4515e..9fdbda7 100644
+index fec24b9..98aa0f5 100644
 --- a/gdb/microblaze-tdep.h
 +++ b/gdb/microblaze-tdep.h
-@@ -115,6 +115,7 @@ enum microblaze_regnum
+@@ -129,7 +129,8 @@ enum microblaze_regnum
  
  /* MICROBLAZE_BREAKPOINT defines the breakpoint that should be used.
     Only used for native debugging.  */
@@ -420,7 +501,8 @@ index ff4515e..9fdbda7 100644
 +#define MICROBLAZE_BREAKPOINT {0xba, 0x0c, 0x00, 0x18}
 +#define MICROBLAZE_BREAKPOINT_LE {0x18, 0x00, 0x0c, 0xba}
  
- #endif /* microblaze-tdep.h */
+ extern void microblaze_supply_gregset (const struct microblaze_gregset *gregset,
+                                     struct regcache *regcache,
 diff --git a/gdb/regformats/reg-microblaze.dat b/gdb/regformats/reg-microblaze.dat
 new file mode 100644
 index 0000000..a5dd0a0
@@ -467,5 +549,5 @@ index 0000000..a5dd0a0
 +32:esr
 +32:fsr
 -- 
-1.7.9.5
+1.9.0
 
diff --git a/recipes-devtools/gdb/files/0006-Add-slr-and-shr-regs-and-little-endian-breakpoint.patch b/recipes-devtools/gdb/files/0007-Patch-microblaze-Add-slr-and-shr-regs-and-little-end.patch
index 53020f9d..7cd11905 100644
--- a/recipes-devtools/gdb/files/0006-Add-slr-and-shr-regs-and-little-endian-breakpoint.patch
+++ b/recipes-devtools/gdb/files/0007-Patch-microblaze-Add-slr-and-shr-regs-and-little-end.patch
@@ -1,20 +1,22 @@
+From fb2af2fffb673dbb14d743c8da94c4a83b71c792 Mon Sep 17 00:00:00 2001
 From: David Holsgrove <david.holsgrove@xilinx.com>
 Date: Mon, 26 Nov 2012 17:39:17 +1000
-Subject: Add slr and shr regs and little-endian breakpoint
+Subject: [PATCH 07/16] [Patch, microblaze]: Add slr and shr regs and
+ little-endian breakpoint
 
 Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
 Upstream-Status: Pending
 ---
- gdb/microblaze-tdep.c             |   10 ++++++++--
- gdb/microblaze-tdep.h             |    6 ++++--
- gdb/regformats/reg-microblaze.dat |    2 ++
+ gdb/microblaze-tdep.c             | 10 ++++++++--
+ gdb/microblaze-tdep.h             |  6 ++++--
+ gdb/regformats/reg-microblaze.dat |  2 ++
  3 files changed, 14 insertions(+), 4 deletions(-)
 
 diff --git a/gdb/microblaze-tdep.c b/gdb/microblaze-tdep.c
-index cfc227d..a245169 100644
+index 1c6dbfe..0ce4947 100644
 --- a/gdb/microblaze-tdep.c
 +++ b/gdb/microblaze-tdep.c
-@@ -74,7 +74,8 @@ static const char *microblaze_register_names[] =
+@@ -73,7 +73,8 @@ static const char *microblaze_register_names[] =
    "rpc",  "rmsr", "rear", "resr", "rfsr", "rbtr",
    "rpvr0", "rpvr1", "rpvr2", "rpvr3", "rpvr4", "rpvr5", "rpvr6",
    "rpvr7", "rpvr8", "rpvr9", "rpvr10", "rpvr11",
@@ -24,7 +26,7 @@ index cfc227d..a245169 100644
  };
  
  #define MICROBLAZE_NUM_REGS ARRAY_SIZE (microblaze_register_names)
-@@ -202,10 +203,15 @@ static const gdb_byte *
+@@ -201,10 +202,15 @@ static const gdb_byte *
  microblaze_breakpoint_from_pc (struct gdbarch *gdbarch, CORE_ADDR *pc, 
                                int *len)
  {
@@ -42,7 +44,7 @@ index cfc227d..a245169 100644
  
  /* Allocate and initialize a frame cache.  */
 diff --git a/gdb/microblaze-tdep.h b/gdb/microblaze-tdep.h
-index 7de4463..23dc77a 100644
+index 98aa0f5..cd32e9f 100644
 --- a/gdb/microblaze-tdep.h
 +++ b/gdb/microblaze-tdep.h
 @@ -56,7 +56,7 @@ struct microblaze_frame_cache
@@ -76,5 +78,5 @@ index a5dd0a0..bd8a438 100644
 +32:slr
 +32:shr
 -- 
-1.7.9.5
+1.9.0
 
diff --git a/recipes-devtools/gdb/files/0012-Added-Backtrace-support-to-GDB.patch b/recipes-devtools/gdb/files/0008-Patch-microblaze-Added-Backtrace-support-to-GDB.patch
index b6bbe497..7f075d55 100644
--- a/recipes-devtools/gdb/files/0012-Added-Backtrace-support-to-GDB.patch
+++ b/recipes-devtools/gdb/files/0008-Patch-microblaze-Added-Backtrace-support-to-GDB.patch
@@ -1,24 +1,30 @@
+From 7944750e435100e72913f01aa0a43b7d7cffd421 Mon Sep 17 00:00:00 2001
 From: nagaraju <nmekala@xilix.com>
 Date: Tue, 3 Sep 2013 12:09:47 +0530
-Subject: Added Backtrace support to GDB
+Subject: [PATCH 08/16] [Patch, microblaze]: 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
+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>
 Upstream-Status: Pending
 ---
- gdb/microblaze-tdep.c |   44 ++++++++++++++++++++++++++++++--------------
- gdb/microblaze-tdep.h |    5 +++--
- 2 files changed, 33 insertions(+), 16 deletions(-)
+ gdb/microblaze-tdep.c | 42 ++++++++++++++++++++++++++++++++++--------
+ gdb/microblaze-tdep.h |  5 +++--
+ 2 files changed, 37 insertions(+), 10 deletions(-)
 
 diff --git a/gdb/microblaze-tdep.c b/gdb/microblaze-tdep.c
-index 9c9f3a9..f4b48a6 100644
+index 0ce4947..247740e 100644
 --- a/gdb/microblaze-tdep.c
 +++ b/gdb/microblaze-tdep.c
-@@ -226,6 +226,7 @@ microblaze_alloc_frame_cache (void)
+@@ -225,6 +225,7 @@ microblaze_alloc_frame_cache (void)
    /* Base address.  */
    cache->base = 0;
    cache->pc = 0;
@@ -81,11 +87,10 @@ index 9c9f3a9..f4b48a6 100644
  }
  
  static struct value *
-@@ -558,18 +569,23 @@ microblaze_frame_prev_register (struct frame_info *this_frame,
+@@ -558,6 +569,14 @@ microblaze_frame_prev_register (struct frame_info *this_frame,
    struct microblaze_frame_cache *cache =
      microblaze_frame_cache (this_frame, this_cache);
  
--  if (cache->frameless_p)
 +  if ((regnum == MICROBLAZE_SP_REGNUM &&
 +      cache->register_offsets[MICROBLAZE_SP_REGNUM])
 +      || (regnum == MICROBLAZE_FP_REGNUM &&
@@ -94,29 +99,34 @@ index 9c9f3a9..f4b48a6 100644
 +     return frame_unwind_got_constant (this_frame, regnum,
 +                                       cache->register_offsets[MICROBLAZE_SP_REGNUM]);
 +
-+  if (regnum == MICROBLAZE_PC_REGNUM)
+   if (cache->frameless_p)
      {
--      if (regnum == MICROBLAZE_PC_REGNUM)
--        regnum = 15;
--      if (regnum == MICROBLAZE_SP_REGNUM)
--        regnum = 1;
--      return trad_frame_get_prev_register (this_frame,
+       if (regnum == MICROBLAZE_PC_REGNUM)
+@@ -565,11 +584,18 @@ microblaze_frame_prev_register (struct frame_info *this_frame,
+       if (regnum == MICROBLAZE_SP_REGNUM)
+         regnum = 1;
+       return trad_frame_get_prev_register (this_frame,
 -                                          cache->saved_regs, regnum);
-+      regnum = 15;
-+      return frame_unwind_got_memory (this_frame, regnum,
-+                                      cache->register_offsets[MICROBLAZE_PREV_PC_REGNUM]);
++            cache->saved_regs, regnum);
      }
 -  else
 -    return trad_frame_get_prev_register (this_frame, cache->saved_regs,
 -                                        regnum);
 +
++  if (regnum == MICROBLAZE_PC_REGNUM)
++    {
++      regnum = 15;
++      return frame_unwind_got_memory (this_frame, regnum,
++                                      cache->register_offsets[MICROBLAZE_PREV_PC_REGNUM]);
++    }
++
 +  return trad_frame_get_prev_register (this_frame, cache->saved_regs,
 +                                       regnum);
  
  }
  
 diff --git a/gdb/microblaze-tdep.h b/gdb/microblaze-tdep.h
-index 23dc77a..cf24ed4 100644
+index cd32e9f..14eb3ab 100644
 --- a/gdb/microblaze-tdep.h
 +++ b/gdb/microblaze-tdep.h
 @@ -57,6 +57,7 @@ struct microblaze_frame_cache
@@ -142,5 +152,5 @@ index 23dc77a..cf24ed4 100644
    MICROBLAZE_R21_REGNUM,
    MICROBLAZE_R22_REGNUM,
 -- 
-1.7.9.5
+1.9.0
 
diff --git a/recipes-devtools/gdb/files/0003-Initial-support-for-native-gdb.patch b/recipes-devtools/gdb/files/0009-Patch-microblaze-Initial-support-for-native-gdb.patch
index 8281352e..1ad6b89c 100644
--- a/recipes-devtools/gdb/files/0003-Initial-support-for-native-gdb.patch
+++ b/recipes-devtools/gdb/files/0009-Patch-microblaze-Initial-support-for-native-gdb.patch
@@ -1,6 +1,7 @@
+From c7b918283f2e438deef78aae84f6b748a7a1bb54 Mon Sep 17 00:00:00 2001
 From: David Holsgrove <david.holsgrove@petalogix.com>
 Date: Fri, 20 Jul 2012 15:18:35 +1000
-Subject: Initial support for native gdb
+Subject: [PATCH 09/16] [Patch, microblaze]: Initial support for native gdb
 
 microblaze: Follow PPC method of getting setting registers
 using PTRACE PEEK/POKE
@@ -8,18 +9,18 @@ using PTRACE PEEK/POKE
 Signed-off-by: David Holsgrove <david.holsgrove@petalogix.com>
 Upstream-Status: Pending
 ---
- gdb/Makefile.in                |    4 +-
- gdb/config/microblaze/linux.mh |    9 +
- gdb/microblaze-linux-nat.c     |  431 ++++++++++++++++++++++++++++++++++++++++
- 3 files changed, 442 insertions(+), 2 deletions(-)
+ gdb/Makefile.in                |   4 +-
+ gdb/config/microblaze/linux.mh |  10 +
+ gdb/microblaze-linux-nat.c     | 431 +++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 443 insertions(+), 2 deletions(-)
  create mode 100644 gdb/config/microblaze/linux.mh
  create mode 100644 gdb/microblaze-linux-nat.c
 
 diff --git a/gdb/Makefile.in b/gdb/Makefile.in
-index 3fd5425..e5781f2 100644
+index f2c16ec..12870a4 100644
 --- a/gdb/Makefile.in
 +++ b/gdb/Makefile.in
-@@ -821,7 +821,7 @@ config/rs6000/nm-rs6000.h top.h bsd-kvm.h gdb-stabs.h reggroups.h \
+@@ -904,7 +904,7 @@ top.h bsd-kvm.h gdb-stabs.h reggroups.h \
  annotate.h sim-regno.h dictionary.h dfp.h main.h frame-unwind.h        \
  remote-fileio.h i386-linux-tdep.h vax-tdep.h objc-lang.h \
  sentinel-frame.h bcache.h symfile.h windows-tdep.h linux-tdep.h \
@@ -28,7 +29,7 @@ index 3fd5425..e5781f2 100644
  psymtab.h psympriv.h progspace.h bfin-tdep.h ia64-hpux-tdep.h \
  amd64-darwin-tdep.h charset-list.h \
  config/djgpp/langinfo.h config/djgpp/nl_types.h darwin-nat.h \
-@@ -1481,7 +1481,7 @@ ALLDEPFILES = \
+@@ -1631,7 +1631,7 @@ ALLDEPFILES = \
         m68kbsd-nat.c m68kbsd-tdep.c \
         m68klinux-nat.c m68klinux-tdep.c \
         m88k-tdep.c m88kbsd-nat.c \
@@ -39,22 +40,23 @@ index 3fd5425..e5781f2 100644
         mips-irix-tdep.c \
 diff --git a/gdb/config/microblaze/linux.mh b/gdb/config/microblaze/linux.mh
 new file mode 100644
-index 0000000..a4eaf54
+index 0000000..547d103
 --- /dev/null
 +++ b/gdb/config/microblaze/linux.mh
-@@ -0,0 +1,9 @@
+@@ -0,0 +1,10 @@
 +# Host: Microblaze, running Linux
 +
 +NAT_FILE= config/nm-linux.h
 +NATDEPFILES= inf-ptrace.o fork-child.o \
 +       microblaze-linux-nat.o proc-service.o linux-thread-db.o \
-+       linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o
++       linux-nat.o linux-osdata.o linux-fork.o linux-procfs.o linux-ptrace.o \
++       linux-waitpid.o
 +NAT_CDEPS = $(srcdir)/proc-service.list
 +
 +LOADLIBES = -ldl $(RDYNAMIC)
 diff --git a/gdb/microblaze-linux-nat.c b/gdb/microblaze-linux-nat.c
 new file mode 100644
-index 0000000..e9b8c9c
+index 0000000..81f8346
 --- /dev/null
 +++ b/gdb/microblaze-linux-nat.c
 @@ -0,0 +1,431 @@
@@ -97,7 +99,7 @@ index 0000000..e9b8c9c
 +#include "osabi.h"
 +
 +#include "gdb_assert.h"
-+#include "gdb_string.h"
++#include <string.h>
 +#include "target-descriptions.h"
 +#include "opcodes/microblaze-opcm.h"
 +#include "opcodes/microblaze-dis.h"
@@ -130,9 +132,9 @@ index 0000000..e9b8c9c
 +int
 +get_thread_id (ptid_t ptid)
 +{
-+  int tid = TIDGET (ptid);
++  int tid = ptid_get_lwp (ptid);
 +  if (0 == tid)
-+    tid = PIDGET (ptid);
++    tid = ptid_get_pid (ptid);
 +  return tid;
 +}
 +
@@ -490,5 +492,4 @@ index 0000000..e9b8c9c
 +  linux_nat_add_target (t);
 +}
 -- 
-1.7.9.5
-
+1.9.0
diff --git a/recipes-devtools/gdb/files/0004-Robustify-inline-function-support.patch b/recipes-devtools/gdb/files/0010-Patch-gdb-Robustify-inline-function-support.patch
index 24759d73..3912ca57 100644
--- a/recipes-devtools/gdb/files/0004-Robustify-inline-function-support.patch
+++ b/recipes-devtools/gdb/files/0010-Patch-gdb-Robustify-inline-function-support.patch
@@ -1,19 +1,20 @@
+From a02963a97d7ce38b0af205f9e3e6dd7e0e06d9be Mon Sep 17 00:00:00 2001
 From: "Edgar E. Iglesias" <edgar@axis.com>
 Date: Mon, 27 Feb 2012 06:28:00 +0100
-Subject: Robustify inline function support
+Subject: [PATCH 10/16] [Patch, gdb]: Robustify inline function support
 
 Signed-off-by: Edgar E. Iglesias <edgar@axis.com>
 Upstream-Status: Pending
 ---
- gdb/blockframe.c   |    3 ++-
- gdb/inline-frame.c |    3 +++
+ gdb/blockframe.c   | 3 ++-
+ gdb/inline-frame.c | 3 +++
  2 files changed, 5 insertions(+), 1 deletion(-)
 
 diff --git a/gdb/blockframe.c b/gdb/blockframe.c
-index d5787f1..80e40a3 100644
+index 0a9381e..ba41d85 100644
 --- a/gdb/blockframe.c
 +++ b/gdb/blockframe.c
-@@ -78,7 +78,8 @@ get_frame_block (struct frame_info *frame, CORE_ADDR *addr_in_block)
+@@ -77,7 +77,8 @@ get_frame_block (struct frame_info *frame, CORE_ADDR *addr_in_block)
         inline_count--;
  
        bl = BLOCK_SUPERBLOCK (bl);
@@ -24,10 +25,10 @@ index d5787f1..80e40a3 100644
  
    return bl;
 diff --git a/gdb/inline-frame.c b/gdb/inline-frame.c
-index 2773814..c3a77ad 100644
+index eb82143..a793390 100644
 --- a/gdb/inline-frame.c
 +++ b/gdb/inline-frame.c
-@@ -230,6 +230,9 @@ inline_frame_sniffer (const struct frame_unwind *self,
+@@ -231,6 +231,9 @@ inline_frame_sniffer (const struct frame_unwind *self,
        cur_block = BLOCK_SUPERBLOCK (cur_block);
      }
  
@@ -38,5 +39,5 @@ index 2773814..c3a77ad 100644
    for (next_frame = get_next_frame (this_frame);
         next_frame && get_frame_type (next_frame) == INLINE_FRAME;
 -- 
-1.7.9.5
+1.9.0
 
diff --git a/recipes-devtools/gdb/files/0010-revert-master-rebase-changes-to-gdbserver.patch b/recipes-devtools/gdb/files/0010-revert-master-rebase-changes-to-gdbserver.patch
deleted file mode 100644
index edd6a5a7..00000000
--- a/recipes-devtools/gdb/files/0010-revert-master-rebase-changes-to-gdbserver.patch
+++ /dev/null
@@ -1,160 +0,0 @@
-From: David Holsgrove <david.holsgrove@xilinx.com>
-Date: Mon, 22 Jul 2013 11:16:05 +1000
-Subject: revert master-rebase changes to gdbserver
-
-Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
-Upstream-Status: Pending
----
- gdb/gdbserver/Makefile.in            |    4 +++
- gdb/gdbserver/configure.srv          |    7 +++++
- gdb/gdbserver/linux-microblaze-low.c |   53 +++++-----------------------------
- 3 files changed, 18 insertions(+), 46 deletions(-)
-
-diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in
-index 08db2cc..aa76959 100644
---- a/gdb/gdbserver/Makefile.in
-+++ b/gdb/gdbserver/Makefile.in
-@@ -143,6 +143,7 @@ SFILES=     $(srcdir)/gdbreplay.c $(srcdir)/inferiors.c $(srcdir)/dll.c \
-        $(srcdir)/linux-ia64-low.c $(srcdir)/linux-low.c \
-        $(srcdir)/linux-m32r-low.c \
-        $(srcdir)/linux-m68k-low.c $(srcdir)/linux-mips-low.c \
-+       $(srcdir)/linux-microblaze-low.c \
-        $(srcdir)/linux-ppc-low.c \
-        $(srcdir)/linux-s390-low.c \
-        $(srcdir)/linux-sh-low.c $(srcdir)/linux-sparc-low.c \
-@@ -336,6 +337,7 @@ clean:
-        rm -f i386-avx.c i386-avx-linux.c
-        rm -f amd64-avx.c amd64-avx-linux.c
-        rm -f i386-mmx.c i386-mmx-linux.c
-+       rm -f microblaze-linux.c
-        rm -f x32.c x32-linux.c
-        rm -f x32-avx.c x32-avx-linux.c
-        @$(MAKE) $(FLAGS_TO_PASS) DO=$@ "DODIRS=$(SUBDIRS)" subdir_do
-@@ -616,6 +618,8 @@ mips64-linux.c : $(srcdir)/../regformats/mips64-linux.dat $(regdat_sh)
-        $(SHELL) $(regdat_sh) $(srcdir)/../regformats/mips64-linux.dat mips64-linux.c
- mips64-dsp-linux.c : $(srcdir)/../regformats/mips64-dsp-linux.dat $(regdat_sh)
-        $(SHELL) $(regdat_sh) $(srcdir)/../regformats/mips64-dsp-linux.dat mips64-dsp-linux.c
-+microblaze-linux.c : $(srcdir)/../regformats/reg-microblaze.dat $(regdat_sh)
-+       $(SHELL) $(regdat_sh) $(srcdir)/../regformats/reg-microblaze.dat microblaze-linux.c
- powerpc-32.c : $(srcdir)/../regformats/rs6000/powerpc-32.dat $(regdat_sh)
-        $(SHELL) $(regdat_sh) $(srcdir)/../regformats/rs6000/powerpc-32.dat powerpc-32.c
- powerpc-32l.c : $(srcdir)/../regformats/rs6000/powerpc-32l.dat $(regdat_sh)
-diff --git a/gdb/gdbserver/configure.srv b/gdb/gdbserver/configure.srv
-index 271a0fe..57bd3a4c 100644
---- a/gdb/gdbserver/configure.srv
-+++ b/gdb/gdbserver/configure.srv
-@@ -201,6 +201,13 @@ case "${target}" in
-                        srv_linux_usrregs=yes
-                        srv_linux_thread_db=yes
-                        ;;
-+  microblaze*-*-linux*)        srv_regobj=microblaze-linux.o
-+                       srv_tgtobj="linux-low.o linux-osdata.o linux-microblaze-low.o "
-+                       srv_tgtobj="${srv_tgtobj} linux-procfs.o linux-ptrace.o"
-+                       srv_linux_regsets=yes
-+                       srv_linux_usrregs=yes
-+                       srv_linux_thread_db=yes
-+                       ;;
-   powerpc*-*-linux*)   srv_regobj="powerpc-32l.o"
-                        srv_regobj="${srv_regobj} powerpc-altivec32l.o"
-                        srv_regobj="${srv_regobj} powerpc-cell32l.o"
-diff --git a/gdb/gdbserver/linux-microblaze-low.c b/gdb/gdbserver/linux-microblaze-low.c
-index 279df9f..cba5d6f 100644
---- a/gdb/gdbserver/linux-microblaze-low.c
-+++ b/gdb/gdbserver/linux-microblaze-low.c
-@@ -43,7 +43,6 @@ static int microblaze_regmap[] =
- 
- /* Defined in auto-generated file microblaze-linux.c.  */
- void init_registers_microblaze (void);
--extern const struct target_desc *tdesc_microblaze;
- 
- static int
- microblaze_cannot_store_register (int regno)
-@@ -108,7 +107,7 @@ microblaze_reinsert_addr (struct regcache *regcache)
- static void
- microblaze_collect_ptrace_register (struct regcache *regcache, int regno, char *buf)
- {
--  int size = register_size (regcache->tdesc, regno);
-+  int size = register_size (regno);
- 
-   memset (buf, 0, sizeof (long));
- 
-@@ -122,7 +121,7 @@ static void
- microblaze_supply_ptrace_register (struct regcache *regcache,
-                            int regno, const char *buf)
- {
--  int size = register_size (regcache->tdesc, regno);
-+  int size = register_size (regno);
- 
-   if (regno == 0) {
-     unsigned long regbuf_0 = 0;
-@@ -158,7 +157,7 @@ microblaze_store_gregset (struct regcache *regcache, const void *buf)
- 
- #endif /* HAVE_PTRACE_GETREGS */
- 
--static struct regset_info microblaze_regsets[] = {
-+struct regset_info target_regsets[] = {
- #ifdef HAVE_PTRACE_GETREGS
-   { PTRACE_GETREGS, PTRACE_SETREGS, 0, sizeof (elf_gregset_t), GENERAL_REGS, microblaze_fill_gregset, microblaze_store_gregset },
-   { 0, 0, 0, -1, -1, NULL, NULL },
-@@ -166,41 +165,11 @@ static struct regset_info microblaze_regsets[] = {
-   { 0, 0, 0, -1, -1, NULL, NULL }
- };
- 
--static struct regsets_info microblaze_regsets_info =
--  {
--    microblaze_regsets, /* regsets */
--    0, /* num_regsets */
--    NULL, /* disabled_regsets */
--  };
--
--static struct usrregs_info microblaze_usrregs_info =
--  {
--    microblaze_num_regs,
--    microblaze_regmap,
--  };
--
--static struct regs_info regs_info =
--  {
--    NULL, /* regset_bitmap */
--    &microblaze_usrregs_info,
--    &microblaze_regsets_info
--  };
--
--static const struct regs_info *
--microblaze_regs_info (void)
--{
--  return &regs_info;
--}
--
--static void
--microblaze_arch_setup (void)
--{
--  current_process ()->tdesc = tdesc_microblaze;
--}
--
- struct linux_target_ops the_low_target = {
--  microblaze_arch_setup,
--  microblaze_regs_info,
-+  init_registers_microblaze,
-+  microblaze_num_regs,
-+  microblaze_regmap,
-+  NULL,
-   microblaze_cannot_fetch_register,
-   microblaze_cannot_store_register,
-   NULL, /* fetch_register */
-@@ -218,11 +187,3 @@ struct linux_target_ops the_low_target = {
-   microblaze_collect_ptrace_register,
-   microblaze_supply_ptrace_register,
- };
--
--void
--initialize_low_arch (void)
--{
--  init_registers_microblaze ();
--
--  initialize_regsets_info (&microblaze_regsets_info);
--}
-\ No newline at end of file
--- 
-1.7.9.5
-
diff --git a/recipes-devtools/gdb/files/0005-Fix-debug-message-when-register-is-unavailable.patch b/recipes-devtools/gdb/files/0011-Patch-gdb-Fix-debug-message-when-register-is-unavail.patch
index 67520f4c..bdec77c5 100644
--- a/recipes-devtools/gdb/files/0005-Fix-debug-message-when-register-is-unavailable.patch
+++ b/recipes-devtools/gdb/files/0011-Patch-gdb-Fix-debug-message-when-register-is-unavail.patch
@@ -1,18 +1,21 @@
+From a05fb34192727fc1b63c827ed006ddde846ce6b8 Mon Sep 17 00:00:00 2001
 From: Nathan Rossi <nathan.rossi@petalogix.com>
 Date: Tue, 8 May 2012 18:11:17 +1000
-Subject: Fix debug message when register is unavailable
+Subject: [PATCH 11/16] [Patch, gdb]: Fix debug message when register is
+ unavailable
 
-Signed-off-by: Nathan Rossi <nathan.rossi@petalogix.com>
+Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>
+Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
 Upstream-Status: Pending
 ---
- gdb/frame.c |   13 ++++++++++---
+ gdb/frame.c | 13 ++++++++++---
  1 file changed, 10 insertions(+), 3 deletions(-)
 
 diff --git a/gdb/frame.c b/gdb/frame.c
-index 4b8ab60..7ad7cb3 100644
+index 013d602..4d0766f 100644
 --- a/gdb/frame.c
 +++ b/gdb/frame.c
-@@ -979,12 +979,19 @@ frame_unwind_register_value (struct frame_info *frame, int regnum)
+@@ -1134,12 +1134,19 @@ frame_unwind_register_value (struct frame_info *frame, int regnum)
           else
             {
               int i;
@@ -36,5 +39,5 @@ index 4b8ab60..7ad7cb3 100644
             }
         }
 -- 
-1.7.9.5
+1.9.0
 
diff --git a/recipes-devtools/gdb/files/0012-LOCAL-Disable-the-warning-message-for-eh_frame_hdr.patch b/recipes-devtools/gdb/files/0012-LOCAL-Disable-the-warning-message-for-eh_frame_hdr.patch
new file mode 100644
index 00000000..819cd179
--- /dev/null
+++ b/recipes-devtools/gdb/files/0012-LOCAL-Disable-the-warning-message-for-eh_frame_hdr.patch
@@ -0,0 +1,34 @@
+From f54d5334afe799e15ca21c5d83097a4c81bbab7e Mon Sep 17 00:00:00 2001
+From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
+Date: Fri, 22 Jun 2012 01:20:20 +0200
+Subject: [PATCH 12/16] [LOCAL]: Disable the warning message for eh_frame_hdr
+
+Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
+Upstream-Status: Pending
+---
+ bfd/elf-eh-frame.c | 9 ++++++---
+ 1 file changed, 6 insertions(+), 3 deletions(-)
+
+diff --git a/bfd/elf-eh-frame.c b/bfd/elf-eh-frame.c
+index 0f0a563..7d8e047 100644
+--- a/bfd/elf-eh-frame.c
++++ b/bfd/elf-eh-frame.c
+@@ -919,9 +919,12 @@ _bfd_elf_parse_eh_frame (bfd *abfd, struct bfd_link_info *info,
+   goto success;
+ 
+  free_no_table:
+-  (*info->callbacks->einfo)
+-    (_("%P: error in %B(%A); no .eh_frame_hdr table will be created.\n"),
+-     abfd, sec);
++  /* FIXME: Remove the microblaze specifics when relaxing gets fixed.  */
++  if (bfd_get_arch(abfd) != bfd_arch_microblaze) {
++    (*info->callbacks->einfo)
++      (_("%P: error in %B(%A); no .eh_frame_hdr table will be created.\n"),
++       abfd, sec);
++  }
+   hdr_info->table = FALSE;
+   if (sec_info)
+     free (sec_info);
+-- 
+1.9.0
+
diff --git a/recipes-devtools/gdb/files/0007-Fix-relaxation-of-assembler-resolved-references.patch b/recipes-devtools/gdb/files/0013-LOCAL-Fix-relaxation-of-assembler-resolved-reference.patch
index 3aaaf0ab..3a0eae83 100644
--- a/recipes-devtools/gdb/files/0007-Fix-relaxation-of-assembler-resolved-references.patch
+++ b/recipes-devtools/gdb/files/0013-LOCAL-Fix-relaxation-of-assembler-resolved-reference.patch
@@ -1,17 +1,19 @@
+From c9f1f07e5b0756069e3d4b04eb9505027f09677f Mon Sep 17 00:00:00 2001
 From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
 Date: Tue, 14 Feb 2012 01:00:22 +0100
-Subject: Fix relaxation of assembler resolved references
+Subject: [PATCH 13/16] [LOCAL]: Fix relaxation of assembler resolved
+ references
 
 Upstream-Status: Pending
 ---
- bfd/elf32-microblaze.c |   39 +++++++++++++++++++++++++++++++++++++++
+ bfd/elf32-microblaze.c     | 39 +++++++++++++++++++++++++++++++++++++++
  1 file changed, 39 insertions(+)
 
 diff --git a/bfd/elf32-microblaze.c b/bfd/elf32-microblaze.c
-index 365546c..61926a4 100644
+index cbd18f0..f90df47 100644
 --- a/bfd/elf32-microblaze.c
 +++ b/bfd/elf32-microblaze.c
-@@ -1967,6 +1967,45 @@ microblaze_elf_relax_section (bfd *abfd,
+@@ -1968,6 +1968,45 @@ microblaze_elf_relax_section (bfd *abfd,
            irelscanend = irelocs + o->reloc_count;
            for (irelscan = irelocs; irelscan < irelscanend; irelscan++)
              {
@@ -58,5 +60,5 @@ index 365546c..61926a4 100644
                  {
                   isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
 -- 
-1.7.9.5
+1.9.0
 
diff --git a/recipes-devtools/gdb/files/0013-microblaze-Handle-framless-functions-in-determining-.patch b/recipes-devtools/gdb/files/0013-microblaze-Handle-framless-functions-in-determining-.patch
deleted file mode 100644
index 70dcbe43..00000000
--- a/recipes-devtools/gdb/files/0013-microblaze-Handle-framless-functions-in-determining-.patch
+++ /dev/null
@@ -1,40 +0,0 @@
-From: David Holsgrove <david.holsgrove@xilinx.com>
-Date: Thu, 7 Nov 2013 16:58:48 +1000
-Subject: 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>
-Upstream-Status: Pending
----
- gdb/microblaze-tdep.c |   10 ++++++++++
- 1 file changed, 10 insertions(+)
-
-diff --git a/gdb/microblaze-tdep.c b/gdb/microblaze-tdep.c
-index f4b48a6..a85adea6 100644
---- a/gdb/microblaze-tdep.c
-+++ b/gdb/microblaze-tdep.c
-@@ -577,6 +577,16 @@ microblaze_frame_prev_register (struct frame_info *this_frame,
-      return frame_unwind_got_constant (this_frame, regnum,
-                                        cache->register_offsets[MICROBLAZE_SP_REGNUM]);
- 
-+  if (cache->frameless_p)
-+    {
-+      if (regnum == MICROBLAZE_PC_REGNUM)
-+        regnum = 15;
-+      if (regnum == MICROBLAZE_SP_REGNUM)
-+        regnum = 1;
-+      return trad_frame_get_prev_register (this_frame,
-+            cache->saved_regs, regnum);
-+    }
-+
-   if (regnum == MICROBLAZE_PC_REGNUM)
-     {
-       regnum = 15;
--- 
-1.7.9.5
-
diff --git a/recipes-devtools/gdb/files/0008-Fixup-debug_loc-sections-after-linker-relaxation.patch b/recipes-devtools/gdb/files/0014-LOCAL-Fixup-debug_loc-sections-after-linker-relaxati.patch
index 95fc629b..85cee9d5 100644
--- a/recipes-devtools/gdb/files/0008-Fixup-debug_loc-sections-after-linker-relaxation.patch
+++ b/recipes-devtools/gdb/files/0014-LOCAL-Fixup-debug_loc-sections-after-linker-relaxati.patch
@@ -1,6 +1,8 @@
-From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
-Date: Wed, 15 Feb 2012 13:53:02 +0100
-Subject: Fixup debug_loc sections after linker relaxation
+From aca2758cff1f8fdc5ad7b6076ef985ba9ec5f857 Mon Sep 17 00:00:00 2001
+From: David Holsgrove <david.holsgrove@xilinx.com>
+Date: Mon, 4 Feb 2013 12:15:22 +1000
+Subject: [PATCH 14/16] [LOCAL]: Fixup debug_loc sections after linker
+ relaxation
 
 Adds a new reloctype R_MICROBLAZE_32_NONE, used for passing
 reloc info from the assembler to the linker when the linker
@@ -10,22 +12,21 @@ This is a workaround for design flaws in the assembler to
 linker interface with regards to linker relaxation.
 
 Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
+Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
 Upstream-Status: Pending
 ---
- bfd/bfd-in2.h            |    5 +++++
- bfd/elf32-microblaze.c   |   45 +++++++++++++++++++++++++++++++++++++--------
- bfd/libbfd.h             |    1 +
- bfd/reloc.c              |    6 ++++++
- include/elf/microblaze.h |    1 +
+ bfd/bfd-in2.h              |  5 +++++
+ bfd/elf32-microblaze.c     | 45 +++++++++++++++++++++++++++++++++++++--------
+ bfd/libbfd.h               |  1 +
+ bfd/reloc.c                |  6 ++++++
+ include/elf/microblaze.h   |  1 +
  5 files changed, 50 insertions(+), 8 deletions(-)
- mode change 100644 => 100755 bfd/elf32-microblaze.c
- mode change 100644 => 100755 include/elf/microblaze.h
 
 diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
-index 524e97e..17a5769 100644
+index 8b7f2ee..de38907 100644
 --- a/bfd/bfd-in2.h
 +++ b/bfd/bfd-in2.h
-@@ -5125,6 +5125,11 @@ value relative to the read-write small data area anchor  */
+@@ -5449,6 +5449,11 @@ value relative to the read-write small data area anchor  */
  expressions of the form "Symbol Op Symbol"  */
    BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM,
  
@@ -38,9 +39,7 @@ index 524e97e..17a5769 100644
  value in two words (with an imm instruction).  No relocation is
  done here - only used for relaxing  */
 diff --git a/bfd/elf32-microblaze.c b/bfd/elf32-microblaze.c
-old mode 100644
-new mode 100755
-index 61926a4..c44c76f
+index f90df47..a3f89b9 100644
 --- a/bfd/elf32-microblaze.c
 +++ b/bfd/elf32-microblaze.c
 @@ -177,6 +177,20 @@ static reloc_howto_type microblaze_elf_howto_raw[] =
@@ -76,7 +75,7 @@ index 61926a4..c44c76f
        microblaze_reloc = R_MICROBLAZE_64_NONE;
        break;
      case BFD_RELOC_32:
-@@ -1912,14 +1929,22 @@ microblaze_elf_relax_section (bfd *abfd,
+@@ -1913,14 +1930,22 @@ microblaze_elf_relax_section (bfd *abfd,
                 }
               break;
             case R_MICROBLAZE_NONE:
@@ -99,7 +98,7 @@ index 61926a4..c44c76f
                 irel->r_addend -= (efix - sfix);
                 /* Should use HOWTO.  */
                 microblaze_bfd_write_imm_value_32 (abfd, contents + irel->r_offset,
-@@ -1967,12 +1992,16 @@ microblaze_elf_relax_section (bfd *abfd,
+@@ -1968,12 +1993,16 @@ microblaze_elf_relax_section (bfd *abfd,
            irelscanend = irelocs + o->reloc_count;
            for (irelscan = irelocs; irelscan < irelscanend; irelscan++)
              {
@@ -117,7 +116,7 @@ index 61926a4..c44c76f
                    /* This was a PC-relative instruction that was completely resolved.  */
                    if (ocontents == NULL)
                      {
-@@ -1997,15 +2026,15 @@ microblaze_elf_relax_section (bfd *abfd,
+@@ -1998,15 +2027,15 @@ microblaze_elf_relax_section (bfd *abfd,
                         }
                     }
  
@@ -138,7 +137,7 @@ index 61926a4..c44c76f
                if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32)
                  {
                   isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
-@@ -2065,7 +2094,7 @@ microblaze_elf_relax_section (bfd *abfd,
+@@ -2066,7 +2095,7 @@ microblaze_elf_relax_section (bfd *abfd,
                               elf_section_data (o)->this_hdr.contents = ocontents;
                             }
                         }
@@ -148,10 +147,10 @@ index 61926a4..c44c76f
                                                         0,
                                                         sec);
 diff --git a/bfd/libbfd.h b/bfd/libbfd.h
-index 857d1ea..5c627fe 100644
+index 09f307f..840c662 100644
 --- a/bfd/libbfd.h
 +++ b/bfd/libbfd.h
-@@ -2492,6 +2492,7 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
+@@ -2644,6 +2644,7 @@ static const char *const bfd_reloc_code_real_names[] = { "@@uninitialized@@",
    "BFD_RELOC_MICROBLAZE_32_ROSDA",
    "BFD_RELOC_MICROBLAZE_32_RWSDA",
    "BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM",
@@ -160,10 +159,10 @@ index 857d1ea..5c627fe 100644
    "BFD_RELOC_MICROBLAZE_64_GOTPC",
    "BFD_RELOC_MICROBLAZE_64_GOT",
 diff --git a/bfd/reloc.c b/bfd/reloc.c
-index b59ca00..c9c547e 100644
+index 7f46c58..5bcd52d 100644
 --- a/bfd/reloc.c
 +++ b/bfd/reloc.c
-@@ -6001,6 +6001,12 @@ ENUMDOC
+@@ -6396,6 +6396,12 @@ ENUMDOC
    This is a 32 bit reloc for the microblaze to handle
    expressions of the form "Symbol Op Symbol"
  ENUM
@@ -177,9 +176,7 @@ index b59ca00..c9c547e 100644
  ENUMDOC
    This is a 64 bit reloc that stores the 32 bit pc relative
 diff --git a/include/elf/microblaze.h b/include/elf/microblaze.h
-old mode 100644
-new mode 100755
-index c4d9821..72771e8
+index effca20..f8420dc 100644
 --- a/include/elf/microblaze.h
 +++ b/include/elf/microblaze.h
 @@ -58,6 +58,7 @@ START_RELOC_NUMBERS (elf_microblaze_reloc_type)
@@ -191,5 +188,5 @@ index c4d9821..72771e8
  END_RELOC_NUMBERS (R_MICROBLAZE_max)
  
 -- 
-1.7.9.5
+1.9.0
 
diff --git a/recipes-devtools/gdb/files/0014-microblaze-Add-build_gdbserver-yes-to-top-level-conf.patch b/recipes-devtools/gdb/files/0014-microblaze-Add-build_gdbserver-yes-to-top-level-conf.patch
deleted file mode 100644
index 78067c87..00000000
--- a/recipes-devtools/gdb/files/0014-microblaze-Add-build_gdbserver-yes-to-top-level-conf.patch
+++ /dev/null
@@ -1,31 +0,0 @@
-From: David Holsgrove <david.holsgrove@xilinx.com>
-Date: Mon, 16 Dec 2013 16:37:32 +1000
-Subject: 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>
-Upstream-Status: Pending
----
- gdb/configure.tgt |    1 +
- 1 file changed, 1 insertion(+)
-
-diff --git a/gdb/configure.tgt b/gdb/configure.tgt
-index 1285aac..6ea10a2 100644
---- a/gdb/configure.tgt
-+++ b/gdb/configure.tgt
-@@ -342,6 +342,7 @@ microblaze*-linux-*|microblaze*-*-linux*)
-        gdb_target_obs="microblaze-tdep.o microblaze-linux-tdep.o microblaze-rom.o glibc-tdep.o \
-                        monitor.o dsrec.o solib-svr4.o symfile-mem.o linux-tdep.o"
-        gdb_sim=../sim/microblaze/libsim.a
-+       build_gdbserver=yes
-        ;;
- microblaze*-*-*)
-        # Target: Xilinx MicroBlaze running standalone
--- 
-1.7.9.5
-
diff --git a/recipes-devtools/gdb/files/0015-LOCAL-upstream-change-to-garbage-collection-sweep-ca.patch b/recipes-devtools/gdb/files/0015-LOCAL-upstream-change-to-garbage-collection-sweep-ca.patch
new file mode 100644
index 00000000..0bb66a94
--- /dev/null
+++ b/recipes-devtools/gdb/files/0015-LOCAL-upstream-change-to-garbage-collection-sweep-ca.patch
@@ -0,0 +1,40 @@
+From 22c63d4d79ac488403340470c14c73bad4984fa3 Mon Sep 17 00:00:00 2001
+From: David Holsgrove <david.holsgrove@xilinx.com>
+Date: Wed, 27 Feb 2013 13:56:11 +1000
+Subject: [PATCH 15/16] [LOCAL]: upstream change to garbage collection sweep
+ causes mb regression
+
+Upstream change for PR13177 now clears the def_regular during gc_sweep of a
+section. (All other archs in binutils/bfd/elf32-*.c received an update
+to a warning about unresolvable relocations - this warning is not present
+in binutils/bfd/elf32-microblaze.c, but this warning check would not
+prevent the error being seen)
+
+The visible issue with this change is when running a c++ application
+in Petalinux which links libstdc++.so for exception handling it segfaults
+on execution.
+
+This does not occur if static linking libstdc++.a, so its during the
+relocations for a shared lib with garbage collection this occurs
+
+Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
+Upstream-Status: Pending
+---
+ bfd/elflink.c | 1 -
+ 1 file changed, 1 deletion(-)
+
+diff --git a/bfd/elflink.c b/bfd/elflink.c
+index 6756fb1..f21dc06 100644
+--- a/bfd/elflink.c
++++ b/bfd/elflink.c
+@@ -11932,7 +11932,6 @@ elf_gc_sweep_symbol (struct elf_link_hash_entry *h, void *data)
+ 
+       inf = (struct elf_gc_sweep_symbol_info *) data;
+       (*inf->hide_symbol) (inf->info, h, TRUE);
+-      h->def_regular = 0;
+       h->ref_regular = 0;
+       h->ref_regular_nonweak = 0;
+     }
+-- 
+1.9.0
+
diff --git a/recipes-devtools/gdb/gdb-cross-canadian_7.6.2.bbappend b/recipes-devtools/gdb/gdb-cross-canadian_7.7.bbappend
index db1e3127..db1e3127 100644
--- a/recipes-devtools/gdb/gdb-cross-canadian_7.6.2.bbappend
+++ b/recipes-devtools/gdb/gdb-cross-canadian_7.7.bbappend
diff --git a/recipes-devtools/gdb/gdb-cross_7.6.2.bbappend b/recipes-devtools/gdb/gdb-cross_7.7.bbappend
index db1e3127..db1e3127 100644
--- a/recipes-devtools/gdb/gdb-cross_7.6.2.bbappend
+++ b/recipes-devtools/gdb/gdb-cross_7.7.bbappend
diff --git a/recipes-devtools/gdb/gdb-microblaze-7.6.2.inc b/recipes-devtools/gdb/gdb-microblaze-7.6.2.inc
deleted file mode 100644
index 9f30eb9a..00000000
--- a/recipes-devtools/gdb/gdb-microblaze-7.6.2.inc
+++ /dev/null
@@ -1,22 +0,0 @@
-
-# MicroBlaze does not support LTTng UST
-LTTNGUST_microblaze = ""
-
-# Add MicroBlaze Patches
-FILESEXTRAPATHS_append := "${THISDIR}/files:"
-SRC_URI_append += " \
-                file://0001-Add-initial-port-of-linux-gdbserver.patch \
-                file://0002-Initial-port-of-core-reading-support.patch \
-                file://0003-Initial-support-for-native-gdb.patch \
-                file://0004-Robustify-inline-function-support.patch \
-                file://0005-Fix-debug-message-when-register-is-unavailable.patch \
-                file://0006-Add-slr-and-shr-regs-and-little-endian-breakpoint.patch \
-                file://0007-Fix-relaxation-of-assembler-resolved-references.patch \
-                file://0008-Fixup-debug_loc-sections-after-linker-relaxation.patch \
-                file://0009-Add-wdc.ext.clear-and-wdc.ext.flush-insns.patch \
-                file://0010-revert-master-rebase-changes-to-gdbserver.patch \
-                file://0011-Patch-microblaze-Add-mb-singlestepping.patch \
-                file://0012-Added-Backtrace-support-to-GDB.patch \
-                file://0013-microblaze-Handle-framless-functions-in-determining-.patch \
-                file://0014-microblaze-Add-build_gdbserver-yes-to-top-level-conf.patch \
-                "
diff --git a/recipes-devtools/gdb/gdb-microblaze-7.7.inc b/recipes-devtools/gdb/gdb-microblaze-7.7.inc
new file mode 100644
index 00000000..0b82bc67
--- /dev/null
+++ b/recipes-devtools/gdb/gdb-microblaze-7.7.inc
@@ -0,0 +1,22 @@
+
+# MicroBlaze does not support LTTng UST
+LTTNGUST_microblaze = ""
+
+# Add MicroBlaze Patches
+FILESEXTRAPATHS_append := "${THISDIR}/files:"
+SRC_URI_append += " \
+                file://0001-Patch-microblaze-Add-wdc.ext.clear-and-wdc.ext.flush.patch \
+                file://0003-Patch-microblaze-Initial-port-of-microblaze-core-rea.patch \
+                file://0004-Patch-microblaze-Communicate-in-larger-blocks-with-t.patch \
+                file://0005-Patch-microblaze-Add-mb-singlestepping.patch \
+                file://0006-Patch-microblaze-Add-initial-port-of-linux-gdbserver.patch \
+                file://0007-Patch-microblaze-Add-slr-and-shr-regs-and-little-end.patch \
+                file://0008-Patch-microblaze-Added-Backtrace-support-to-GDB.patch \
+                file://0009-Patch-microblaze-Initial-support-for-native-gdb.patch \
+                file://0010-Patch-gdb-Robustify-inline-function-support.patch \
+                file://0011-Patch-gdb-Fix-debug-message-when-register-is-unavail.patch \
+                file://0012-LOCAL-Disable-the-warning-message-for-eh_frame_hdr.patch \
+                file://0013-LOCAL-Fix-relaxation-of-assembler-resolved-reference.patch \
+                file://0014-LOCAL-Fixup-debug_loc-sections-after-linker-relaxati.patch \
+                file://0015-LOCAL-upstream-change-to-garbage-collection-sweep-ca.patch \
+                "
diff --git a/recipes-devtools/gdb/gdb_7.6.2.bbappend b/recipes-devtools/gdb/gdb_7.7.bbappend
index db1e3127..db1e3127 100644
--- a/recipes-devtools/gdb/gdb_7.6.2.bbappend
+++ b/recipes-devtools/gdb/gdb_7.7.bbappend