gdb: decouple toolchain and package, add special package for microblaze, looks cleaner to me

8 files changed, 5 insertions, 1934 deletions

diff --git a/package/gdb/Makefile b/package/gdb/Makefile
index 76f5fba22..df1504e89 100644
--- a/package/gdb/Makefile
+++ b/package/gdb/Makefile
@@ -2,16 +2,19 @@
 # material, please see the LICENCE file in the top-level directory.
 
 include ${ADK_TOPDIR}/rules.mk
-include ${ADK_TOPDIR}/toolchain/gdb/Makefile.inc
 
 PKG_NAME:=		gdb
+PKG_VERSION:=		7.11.1
+PKG_RELEASE:=		1
+PKG_HASH:=		e9216da4e3755e9f414c1aa0026b626251dfc57ffe572a266e98da4f6988fc70
 PKG_DESCR:=		programm debugger
 PKG_SECTION:=		app/debug
+PKG_SITES:=		${MASTER_SITE_GNU:=gdb/}
 PKG_DEPENDS:=		libncurses zlib libexpat libthread-db
 PKG_BUILDDEP:=		ncurses readline expat zlib
 PKG_NOPARALLEL:=	1
 
-PKG_ARCH_DEPENDS:=	!m68k !avr32 !nios2
+PKG_ARCH_DEPENDS:=	!m68k !avr32 !nios2 !microblaze
 
 include ${ADK_TOPDIR}/mk/package.mk
 
diff --git a/package/gdb/patches/7.8.2/microblaze.patch b/package/gdb/patches/7.8.2/microblaze.patch
deleted file mode 100644
index 867cbf554..000000000
--- a/package/gdb/patches/7.8.2/microblaze.patch
+++ /dev/null
@@ -1,1848 +0,0 @@
-diff -Nur gdb-7.8.2.orig/bfd/bfd-in2.h gdb-7.8.2/bfd/bfd-in2.h
---- gdb-7.8.2.orig/bfd/bfd-in2.h	2015-01-15 11:58:11.000000000 +0100
-+++ gdb-7.8.2/bfd/bfd-in2.h	2016-05-14 21:29:38.989383220 +0200
-@@ -5449,6 +5449,11 @@
- expressions of the form "Symbol Op Symbol"  */
-   BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM,
- 
-+/* This is a 32 bit reloc that stores the 32 bit pc relative
-+value in two words (with an imm instruction).  No relocation is 
-+done here - only used for relaxing  */
-+  BFD_RELOC_MICROBLAZE_32_NONE,
-+
- /* This is a 64 bit reloc that stores the 32 bit pc relative
- value in two words (with an imm instruction).  No relocation is
- done here - only used for relaxing  */
-diff -Nur gdb-7.8.2.orig/bfd/elf32-microblaze.c gdb-7.8.2/bfd/elf32-microblaze.c
---- gdb-7.8.2.orig/bfd/elf32-microblaze.c	2015-01-15 11:58:11.000000000 +0100
-+++ gdb-7.8.2/bfd/elf32-microblaze.c	2016-05-14 21:29:38.993383375 +0200
-@@ -177,6 +177,20 @@
-           FALSE), 		/* PC relative offset?  */
- 
-    /* This reloc does nothing.  Used for relaxation.  */
-+   HOWTO (R_MICROBLAZE_32_NONE,	/* Type.  */
-+          0,			/* Rightshift.  */
-+          2,			/* Size (0 = byte, 1 = short, 2 = long).  */
-+          32,			/* Bitsize.  */
-+          TRUE,			/* PC_relative.  */
-+          0,			/* Bitpos.  */
-+          complain_overflow_bitfield,  /* Complain on overflow.  */
-+          NULL,                  /* Special Function.  */
-+          "R_MICROBLAZE_32_NONE",/* Name.  */
-+          FALSE,		/* Partial Inplace.  */
-+          0,			/* Source Mask.  */
-+          0,			/* Dest Mask.  */
-+          FALSE),		/* PC relative offset?  */
-+
-    HOWTO (R_MICROBLAZE_64_NONE,	/* Type.  */
-           0,			/* Rightshift.  */
-           2,			/* Size (0 = byte, 1 = short, 2 = long).  */
-@@ -532,7 +546,10 @@
-     case BFD_RELOC_NONE:
-       microblaze_reloc = R_MICROBLAZE_NONE;
-       break;
--    case BFD_RELOC_MICROBLAZE_64_NONE:
-+    case BFD_RELOC_MICROBLAZE_32_NONE:
-+      microblaze_reloc = R_MICROBLAZE_32_NONE;
-+      break;
-+     case BFD_RELOC_MICROBLAZE_64_NONE:
-       microblaze_reloc = R_MICROBLAZE_64_NONE;
-       break;
-     case BFD_RELOC_32:
-@@ -668,6 +685,67 @@
-   return _bfd_elf_is_local_label_name (abfd, name);
- }
- 
-+/* Support for core dump NOTE sections.  */
-+static bfd_boolean
-+microblaze_elf_grok_prstatus (bfd *abfd, Elf_Internal_Note *note)
-+{
-+  int offset;
-+  unsigned int size;
-+
-+  switch (note->descsz)
-+    {
-+      default:
-+        return FALSE;
-+
-+      case 228:         /* Linux/MicroBlaze */
-+        /* pr_cursig */
-+        elf_tdata (abfd)->core->signal = bfd_get_16 (abfd, note->descdata + 12);
-+
-+        /* pr_pid */
-+        elf_tdata (abfd)->core->pid = bfd_get_32 (abfd, note->descdata + 24);
-+
-+        /* pr_reg */
-+        offset = 72;
-+        size = 50 * 4;
-+
-+        break;
-+    }
-+
-+  /* Make a ".reg/999" section.  */
-+  return _bfd_elfcore_make_pseudosection (abfd, ".reg",
-+                                          size, note->descpos + offset);
-+}
-+
-+static bfd_boolean
-+microblaze_elf_grok_psinfo (bfd *abfd, Elf_Internal_Note *note)
-+{
-+  switch (note->descsz)
-+    {
-+      default:
-+        return FALSE;
-+
-+      case 128:         /* Linux/MicroBlaze elf_prpsinfo */
-+        elf_tdata (abfd)->core->program
-+         = _bfd_elfcore_strndup (abfd, note->descdata + 32, 16);
-+        elf_tdata (abfd)->core->command
-+         = _bfd_elfcore_strndup (abfd, note->descdata + 48, 80);
-+    }
-+
-+  /* Note that for some reason, a spurious space is tacked
-+     onto the end of the args in some (at least one anyway)
-+     implementations, so strip it off if it exists.  */
-+
-+  {
-+    char *command = elf_tdata (abfd)->core->command;
-+    int n = strlen (command);
-+
-+    if (0 < n && command[n - 1] == ' ')
-+      command[n - 1] = '\0';
-+  }
-+
-+  return TRUE;
-+}
-+
- /* 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
-@@ -1023,7 +1101,7 @@
- 	    {
- 	      /* External symbol.  */
- 	      bfd_boolean warned ATTRIBUTE_UNUSED;
--	      bfd_boolean ignored ATTRIBUTE_UNUSED;
-+	      bfd_boolean ignored;
- 
- 	      RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
- 				       r_symndx, symtab_hdr, sym_hashes,
-@@ -1852,14 +1930,22 @@
- 	        }
- 	      break;
- 	    case R_MICROBLAZE_NONE:
-+	    case R_MICROBLAZE_32_NONE:
- 	      {
- 	        /* This was a PC-relative instruction that was
-  		   completely resolved.  */
- 	        int sfix, efix;
-+		unsigned int val;
- 	        bfd_vma target_address;
- 	        target_address = irel->r_addend + irel->r_offset;
- 	        sfix = calc_fixup (irel->r_offset, 0, sec);
- 	        efix = calc_fixup (target_address, 0, sec);
-+
-+                /* Validate the in-band val.  */
-+                val = bfd_get_32 (abfd, contents + irel->r_offset);
-+                if (val != irel->r_addend && ELF32_R_TYPE (irel->r_info) == R_MICROBLAZE_32_NONE) {
-+                    fprintf(stderr, "%d: CORRUPT relax reloc %x %lx\n", __LINE__, val, irel->r_addend);
-+                }
- 	        irel->r_addend -= (efix - sfix);
- 	        /* Should use HOWTO.  */
- 	        microblaze_bfd_write_imm_value_32 (abfd, contents + irel->r_offset,
-@@ -1907,6 +1993,49 @@
-           irelscanend = irelocs + o->reloc_count;
-           for (irelscan = irelocs; irelscan < irelscanend; irelscan++)
-             {
-+              if (1 && ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32_NONE)
-+                {
-+                  unsigned int val;
-+
-+                  isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
-+
-+                  /* hax: We only do the following fixup for debug location lists.  */
-+                  if (strcmp(".debug_loc", o->name))
-+                    continue;
-+
-+                  /* This was a PC-relative instruction that was completely resolved.  */
-+                  if (ocontents == NULL)
-+                    {
-+		      if (elf_section_data (o)->this_hdr.contents != NULL)
-+		          ocontents = elf_section_data (o)->this_hdr.contents;
-+		      else
-+		        {
-+		          /* We always cache the section contents.
-+			     Perhaps, if info->keep_memory is FALSE, we
-+			     should free them, if we are permitted to.  */
-+
-+		          if (o->rawsize == 0)
-+			      o->rawsize = o->size;
-+		          ocontents = (bfd_byte *) bfd_malloc (o->rawsize);
-+		          if (ocontents == NULL)
-+			      goto error_return;
-+		          if (!bfd_get_section_contents (abfd, o, ocontents,
-+                                                         (file_ptr) 0,
-+                                                         o->rawsize))
-+                              goto error_return;
-+		          elf_section_data (o)->this_hdr.contents = ocontents;
-+		        }
-+		    }
-+
-+                  val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
-+                  if (val != irelscan->r_addend) {
-+			fprintf(stderr, "%d: CORRUPT relax reloc! %x %lx\n", __LINE__, val, irelscan->r_addend);
-+                  }
-+
-+                  irelscan->r_addend -= calc_fixup (irelscan->r_addend, 0, sec);
-+                  microblaze_bfd_write_imm_value_32 (abfd, ocontents + irelscan->r_offset,
-+                                                     irelscan->r_addend);
-+              }
-               if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32)
-                 {
- 	          isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
-@@ -1966,7 +2095,7 @@
- 			      elf_section_data (o)->this_hdr.contents = ocontents;
- 			    }
- 			}
--		      irelscan->r_addend -= calc_fixup (irel->r_addend
-+		      irelscan->r_addend -= calc_fixup (irelscan->r_addend
- 							+ isym->st_value,
- 							0,
- 							sec);
-@@ -3506,4 +3635,7 @@
- #define elf_backend_size_dynamic_sections       microblaze_elf_size_dynamic_sections
- #define elf_backend_add_symbol_hook		microblaze_elf_add_symbol_hook
- 
-+#define elf_backend_grok_prstatus               microblaze_elf_grok_prstatus
-+#define elf_backend_grok_psinfo                 microblaze_elf_grok_psinfo
-+
- #include "elf32-target.h"
-diff -Nur gdb-7.8.2.orig/bfd/libbfd.h gdb-7.8.2/bfd/libbfd.h
---- gdb-7.8.2.orig/bfd/libbfd.h	2015-01-15 11:58:11.000000000 +0100
-+++ gdb-7.8.2/bfd/libbfd.h	2016-05-14 21:29:38.993383375 +0200
-@@ -2644,6 +2644,7 @@
-   "BFD_RELOC_MICROBLAZE_32_ROSDA",
-   "BFD_RELOC_MICROBLAZE_32_RWSDA",
-   "BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM",
-+  "BFD_RELOC_MICROBLAZE_32_NONE",
-   "BFD_RELOC_MICROBLAZE_64_NONE",
-   "BFD_RELOC_MICROBLAZE_64_GOTPC",
-   "BFD_RELOC_MICROBLAZE_64_GOT",
-diff -Nur gdb-7.8.2.orig/gdb/config/microblaze/linux.mh gdb-7.8.2/gdb/config/microblaze/linux.mh
---- gdb-7.8.2.orig/gdb/config/microblaze/linux.mh	1970-01-01 01:00:00.000000000 +0100
-+++ gdb-7.8.2/gdb/config/microblaze/linux.mh	2016-05-14 21:29:38.993383375 +0200
-@@ -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-waitpid.o
-+NAT_CDEPS = $(srcdir)/proc-service.list
-+
-+LOADLIBES = -ldl $(RDYNAMIC)
-diff -Nur gdb-7.8.2.orig/gdb/configure.host gdb-7.8.2/gdb/configure.host
---- gdb-7.8.2.orig/gdb/configure.host	2015-01-15 11:58:12.000000000 +0100
-+++ gdb-7.8.2/gdb/configure.host	2016-05-14 21:29:38.993383375 +0200
-@@ -59,6 +59,7 @@
- m68*)			gdb_host_cpu=m68k ;;
- m88*)			gdb_host_cpu=m88k ;;
- mips*)			gdb_host_cpu=mips ;;
-+microblaze*)		gdb_host_cpu=microblaze ;;
- powerpc* | rs6000)	gdb_host_cpu=powerpc ;;
- sparcv9 | sparc64)	gdb_host_cpu=sparc ;;
- s390*)			gdb_host_cpu=s390 ;;
-@@ -133,6 +134,8 @@
- 			gdb_host=nbsd ;;
- mips64*-*-openbsd*)	gdb_host=obsd64 ;;
- 
-+microblaze*-*linux*)    gdb_host=linux ;;
-+
- powerpc-*-aix* | rs6000-*-* | powerpc64-*-aix*)
- 			gdb_host=aix ;;
- powerpc*-*-freebsd*)	gdb_host=fbsd ;;
-diff -Nur gdb-7.8.2.orig/gdb/configure.tgt gdb-7.8.2/gdb/configure.tgt
---- gdb-7.8.2.orig/gdb/configure.tgt	2015-01-15 11:58:12.000000000 +0100
-+++ gdb-7.8.2/gdb/configure.tgt	2016-05-14 21:29:38.993383375 +0200
-@@ -340,9 +340,10 @@
- 
- microblaze*-linux-*|microblaze*-*-linux*)
- 	# Target: Xilinx MicroBlaze running Linux
--	gdb_target_obs="microblaze-tdep.o microblaze-linux-tdep.o microblaze-rom.o \
-+	gdb_target_obs="microblaze-tdep.o microblaze-linux-tdep.o microblaze-rom.o glibc-tdep.o \
- 			monitor.o dsrec.o solib-svr4.o symfile-mem.o linux-tdep.o"
- 	gdb_sim=../sim/microblaze/libsim.a
-+	build_gdbserver=yes
- 	;;
- microblaze*-*-*)
- 	# Target: Xilinx MicroBlaze running standalone
-diff -Nur gdb-7.8.2.orig/gdb/gdbserver/configure.srv gdb-7.8.2/gdb/gdbserver/configure.srv
---- gdb-7.8.2.orig/gdb/gdbserver/configure.srv	2015-01-15 11:58:12.000000000 +0100
-+++ gdb-7.8.2/gdb/gdbserver/configure.srv	2016-05-14 21:29:38.993383375 +0200
-@@ -198,6 +198,13 @@
- 			srv_linux_usrregs=yes
- 			srv_linux_thread_db=yes
- 			;;
-+  microblaze*-*-linux*)	srv_regobj=microblaze-linux.o
-+			srv_tgtobj="$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 -Nur gdb-7.8.2.orig/gdb/gdbserver/linux-microblaze-low.c gdb-7.8.2/gdb/gdbserver/linux-microblaze-low.c
---- gdb-7.8.2.orig/gdb/gdbserver/linux-microblaze-low.c	1970-01-01 01:00:00.000000000 +0100
-+++ gdb-7.8.2/gdb/gdbserver/linux-microblaze-low.c	2016-05-14 21:29:38.993383375 +0200
-@@ -0,0 +1,228 @@
-+/* GNU/Linux/Microblaze specific low level interface, for the remote server for
-+   GDB.
-+   Copyright (C) 1995-2013 Free Software Foundation, Inc.
-+
-+   This file is part of GDB.
-+
-+   This program is free software; you can redistribute it and/or modify
-+   it under the terms of the GNU General Public License as published by
-+   the Free Software Foundation; either version 3 of the License, or
-+   (at your option) any later version.
-+
-+   This program is distributed in the hope that it will be useful,
-+   but WITHOUT ANY WARRANTY; without even the implied warranty of
-+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-+   GNU General Public License for more details.
-+
-+   You should have received a copy of the GNU General Public License
-+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-+
-+#include "server.h"
-+#include "linux-low.h"
-+
-+#include <asm/ptrace.h>
-+#include <sys/procfs.h>
-+#include <sys/ptrace.h>
-+
-+#include "gdb_proc_service.h"
-+
-+static int microblaze_regmap[] =
-+ {PT_GPR(0),     PT_GPR(1),     PT_GPR(2),     PT_GPR(3),
-+  PT_GPR(4),     PT_GPR(5),     PT_GPR(6),     PT_GPR(7),
-+  PT_GPR(8),     PT_GPR(9),     PT_GPR(10),    PT_GPR(11),
-+  PT_GPR(12),    PT_GPR(13),    PT_GPR(14),    PT_GPR(15),
-+  PT_GPR(16),    PT_GPR(17),    PT_GPR(18),    PT_GPR(19),
-+  PT_GPR(20),    PT_GPR(21),    PT_GPR(22),    PT_GPR(23),
-+  PT_GPR(24),    PT_GPR(25),    PT_GPR(26),    PT_GPR(27),
-+  PT_GPR(28),    PT_GPR(29),    PT_GPR(30),    PT_GPR(31),
-+  PT_PC,         PT_MSR,        PT_EAR,        PT_ESR,
-+  PT_FSR
-+  };
-+
-+#define microblaze_num_regs (sizeof microblaze_regmap / sizeof microblaze_regmap[0])
-+
-+/* 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)
-+{
-+  if (microblaze_regmap[regno] == -1 || regno == 0)
-+    return 1;
-+
-+  return 0;
-+}
-+
-+static int
-+microblaze_cannot_fetch_register (int regno)
-+{
-+  return 0;
-+}
-+
-+static CORE_ADDR
-+microblaze_get_pc (struct regcache *regcache)
-+{
-+  unsigned long pc;
-+
-+  collect_register_by_name (regcache, "pc", &pc);
-+  return (CORE_ADDR) pc;
-+}
-+
-+static void
-+microblaze_set_pc (struct regcache *regcache, CORE_ADDR pc)
-+{
-+  unsigned long newpc = pc;
-+
-+  supply_register_by_name (regcache, "pc", &newpc);
-+}
-+
-+/* dbtrap insn */
-+/* brki r16, 0x18; */
-+static const unsigned long microblaze_breakpoint = 0xba0c0018;
-+#define microblaze_breakpoint_len 4
-+
-+static int
-+microblaze_breakpoint_at (CORE_ADDR where)
-+{
-+  unsigned long insn;
-+
-+  (*the_target->read_memory) (where, (unsigned char *) &insn, 4);
-+  if (insn == microblaze_breakpoint)
-+    return 1;
-+  /* If necessary, recognize more trap instructions here.  GDB only uses the
-+     one.  */
-+  return 0;
-+}
-+
-+static CORE_ADDR
-+microblaze_reinsert_addr (struct regcache *regcache)
-+{
-+  unsigned long pc;
-+  collect_register_by_name (regcache, "r15", &pc);
-+  return pc;
-+}
-+
-+#ifdef HAVE_PTRACE_GETREGS
-+
-+static void
-+microblaze_collect_ptrace_register (struct regcache *regcache, int regno, char *buf)
-+{
-+  int size = register_size (regcache->tdesc, regno);
-+
-+  memset (buf, 0, sizeof (long));
-+
-+  if (size < sizeof (long))
-+    collect_register (regcache, regno, buf + sizeof (long) - size);
-+  else
-+    collect_register (regcache, regno, buf);
-+}
-+
-+static void
-+microblaze_supply_ptrace_register (struct regcache *regcache,
-+			    int regno, const char *buf)
-+{
-+  int size = register_size (regcache->tdesc, regno);
-+
-+  if (regno == 0) {
-+    unsigned long regbuf_0 = 0;
-+    /* clobbering r0 so that it is always 0 as enforced by hardware */
-+    supply_register (regcache, regno, (const char*)&regbuf_0);
-+  } else {
-+      if (size < sizeof (long))
-+        supply_register (regcache, regno, buf + sizeof (long) - size);
-+      else
-+        supply_register (regcache, regno, buf);
-+  }
-+}
-+
-+/* Provide only a fill function for the general register set.  ps_lgetregs
-+   will use this for NPTL support.  */
-+
-+static void microblaze_fill_gregset (struct regcache *regcache, void *buf)
-+{
-+  int i;
-+
-+  for (i = 0; i < 32; i++)
-+    microblaze_collect_ptrace_register (regcache, i, (char *) buf + microblaze_regmap[i]);
-+}
-+
-+static void
-+microblaze_store_gregset (struct regcache *regcache, const void *buf)
-+{
-+  int i;
-+
-+  for (i = 0; i < 32; i++)
-+    supply_register (regcache, i, (char *) buf + microblaze_regmap[i]);
-+}
-+
-+#endif /* HAVE_PTRACE_GETREGS */
-+
-+static struct regset_info microblaze_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 },
-+#endif /* HAVE_PTRACE_GETREGS */
-+  { 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,
-+  microblaze_cannot_fetch_register,
-+  microblaze_cannot_store_register,
-+  NULL, /* fetch_register */
-+  microblaze_get_pc,
-+  microblaze_set_pc,
-+  (const unsigned char *) &microblaze_breakpoint,
-+  microblaze_breakpoint_len,
-+  microblaze_reinsert_addr,
-+  0,
-+  microblaze_breakpoint_at,
-+  NULL,
-+  NULL,
-+  NULL,
-+  NULL,
-+  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
-diff -Nur gdb-7.8.2.orig/gdb/gdbserver/Makefile.in gdb-7.8.2/gdb/gdbserver/Makefile.in
---- gdb-7.8.2.orig/gdb/gdbserver/Makefile.in	2015-01-15 11:58:12.000000000 +0100
-+++ gdb-7.8.2/gdb/gdbserver/Makefile.in	2016-05-14 21:29:38.993383375 +0200
-@@ -148,6 +148,7 @@
- 	$(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 @@
- 	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
-@@ -620,6 +622,8 @@
- 	$(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
- nios2-linux.c :	$(srcdir)/../regformats/nios2-linux.dat $(regdat_sh)
- 	$(SHELL) $(regdat_sh) $(srcdir)/../regformats/nios2-linux.dat nios2-linux.c
- powerpc-32.c : $(srcdir)/../regformats/rs6000/powerpc-32.dat $(regdat_sh)
-diff -Nur gdb-7.8.2.orig/gdb/Makefile.in gdb-7.8.2/gdb/Makefile.in
---- gdb-7.8.2.orig/gdb/Makefile.in	2015-01-15 11:58:12.000000000 +0100
-+++ gdb-7.8.2/gdb/Makefile.in	2016-05-14 21:29:38.993383375 +0200
-@@ -912,7 +912,7 @@
- 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 \
--gdb_usleep.h jit.h xml-syscall.h microblaze-tdep.h \
-+gdb_usleep.h jit.h xml-syscall.h microblaze-tdep.h microblaze-linux-tdep.h \
- 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 \
-@@ -1639,7 +1639,7 @@
- 	m68kbsd-nat.c m68kbsd-tdep.c \
- 	m68klinux-nat.c m68klinux-tdep.c \
- 	m88k-tdep.c m88kbsd-nat.c \
--	microblaze-tdep.c microblaze-linux-tdep.c \
-+	microblaze-tdep.c microblaze-linux-nat.c microblaze-linux-tdep.c \
- 	mingw-hdep.c \
- 	mips-linux-nat.c mips-linux-tdep.c \
- 	mips-irix-tdep.c \
-diff -Nur gdb-7.8.2.orig/gdb/microblaze-linux-nat.c gdb-7.8.2/gdb/microblaze-linux-nat.c
---- gdb-7.8.2.orig/gdb/microblaze-linux-nat.c	1970-01-01 01:00:00.000000000 +0100
-+++ gdb-7.8.2/gdb/microblaze-linux-nat.c	2016-05-14 21:29:38.993383375 +0200
-@@ -0,0 +1,430 @@
-+/* Microblaze GNU/Linux native support.
-+
-+   Copyright (C) 1988-1989, 1991-1992, 1994, 1996, 2000-2012 Free
-+   Software Foundation, Inc.
-+
-+   This file is part of GDB.
-+
-+   This program is free software; you can redistribute it and/or modify
-+   it under the terms of the GNU General Public License as published by
-+   the Free Software Foundation; either version 3 of the License, or
-+   (at your option) any later version.
-+
-+   This program is distributed in the hope that it will be useful,
-+   but WITHOUT ANY WARRANTY; without even the implied warranty of
-+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-+   GNU General Public License for more details.
-+
-+   You should have received a copy of the GNU General Public License
-+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
-+
-+#include "defs.h"
-+#include "arch-utils.h"
-+#include "dis-asm.h"
-+#include "frame.h"
-+#include "trad-frame.h"
-+#include "symtab.h"
-+#include "value.h"
-+#include "gdbcmd.h"
-+#include "breakpoint.h"
-+#include "inferior.h"
-+#include "regcache.h"
-+#include "target.h"
-+#include "frame.h"
-+#include "frame-base.h"
-+#include "frame-unwind.h"
-+#include "dwarf2-frame.h"
-+#include "osabi.h"
-+
-+#include "gdb_assert.h"
-+#include "target-descriptions.h"
-+#include "opcodes/microblaze-opcm.h"
-+#include "opcodes/microblaze-dis.h"
-+
-+#include "linux-nat.h"
-+#include "target-descriptions.h"
-+
-+#include <sys/user.h>
-+#include <sys/utsname.h>
-+#include <sys/procfs.h>
-+#include <sys/ptrace.h>
-+
-+/* Prototypes for supply_gregset etc. */
-+#include "gregset.h"
-+
-+#include "microblaze-tdep.h"
-+
-+#include <elf/common.h>
-+#include "auxv.h"
-+
-+/* Defines ps_err_e, struct ps_prochandle.  */
-+#include "gdb_proc_service.h"
-+
-+/* On GNU/Linux, threads are implemented as pseudo-processes, in which
-+   case we may be tracing more than one process at a time.  In that
-+   case, inferior_ptid will contain the main process ID and the
-+   individual thread (process) ID.  get_thread_id () is used to get
-+   the thread id if it's available, and the process id otherwise.  */
-+
-+int
-+get_thread_id (ptid_t ptid)
-+{
-+  int tid = ptid_get_lwp (ptid);
-+  if (0 == tid)
-+    tid = ptid_get_pid (ptid);
-+  return tid;
-+}
-+
-+#define GET_THREAD_ID(PTID)	get_thread_id (PTID)
-+
-+/* Non-zero if our kernel may support the PTRACE_GETREGS and
-+   PTRACE_SETREGS requests, for reading and writing the
-+   general-purpose registers.  Zero if we've tried one of
-+   them and gotten an error.  */
-+int have_ptrace_getsetregs = 1;
-+
-+static int
-+microblaze_register_u_addr (struct gdbarch *gdbarch, int regno)
-+{
-+  int u_addr = -1;
-+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
-+  /* NOTE: cagney/2003-11-25: This is the word size used by the ptrace
-+     interface, and not the wordsize of the program's ABI.  */
-+  int wordsize = sizeof (long);
-+
-+  /* General purpose registers occupy 1 slot each in the buffer.  */
-+  if (regno >= MICROBLAZE_R0_REGNUM
-+      && regno <= MICROBLAZE_FSR_REGNUM)
-+    u_addr = (regno * wordsize);
-+
-+  return u_addr;
-+}
-+
-+
-+static void
-+fetch_register (struct regcache *regcache, int tid, int regno)
-+{
-+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
-+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
-+  /* This isn't really an address.  But ptrace thinks of it as one.  */
-+  CORE_ADDR regaddr = microblaze_register_u_addr (gdbarch, regno);
-+  int bytes_transferred;
-+  unsigned int offset;         /* Offset of registers within the u area.  */
-+  char buf[MAX_REGISTER_SIZE];
-+
-+  if (regaddr == -1)
-+  {
-+    memset (buf, '\0', register_size (gdbarch, regno));   /* Supply zeroes */
-+    regcache_raw_supply (regcache, regno, buf);
-+    return;
-+  }
-+
-+  /* Read the raw register using sizeof(long) sized chunks.  On a
-+     32-bit platform, 64-bit floating-point registers will require two
-+     transfers.  */
-+  for (bytes_transferred = 0;
-+       bytes_transferred < register_size (gdbarch, regno);
-+       bytes_transferred += sizeof (long))
-+  {
-+    long l;
-+
-+    errno = 0;
-+    l = ptrace (PTRACE_PEEKUSER, tid, (PTRACE_TYPE_ARG3) regaddr, 0);
-+    regaddr += sizeof (long);
-+    if (errno != 0)
-+    {
-+      char message[128];
-+      sprintf (message, "reading register %s (#%d)",
-+               gdbarch_register_name (gdbarch, regno), regno);
-+      perror_with_name (message);
-+    }
-+    memcpy (&buf[bytes_transferred], &l, sizeof (l));
-+  }
-+
-+  /* Now supply the register.  Keep in mind that the regcache's idea
-+     of the register's size may not be a multiple of sizeof
-+     (long).  */
-+  if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_LITTLE)
-+  {
-+    /* Little-endian values are always found at the left end of the
-+       bytes transferred.  */
-+    regcache_raw_supply (regcache, regno, buf);
-+  }
-+  else if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
-+  {
-+    /* Big-endian values are found at the right end of the bytes
-+       transferred.  */
-+    size_t padding = (bytes_transferred - register_size (gdbarch, regno));
-+    regcache_raw_supply (regcache, regno, buf + padding);
-+  }
-+  else
-+    internal_error (__FILE__, __LINE__,
-+                    _("fetch_register: unexpected byte order: %d"),
-+                    gdbarch_byte_order (gdbarch));
-+}
-+
-+/* This function actually issues the request to ptrace, telling
-+   it to get all general-purpose registers and put them into the
-+   specified regset.
-+
-+   If the ptrace request does not exist, this function returns 0
-+   and properly sets the have_ptrace_* flag.  If the request fails,
-+   this function calls perror_with_name.  Otherwise, if the request
-+   succeeds, then the regcache gets filled and 1 is returned.  */
-+static int
-+fetch_all_gp_regs (struct regcache *regcache, int tid)
-+{
-+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
-+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
-+  gdb_gregset_t gregset;
-+
-+  if (ptrace (PTRACE_GETREGS, tid, 0, (void *) &gregset) < 0)
-+  {
-+    if (errno == EIO)
-+    {
-+      have_ptrace_getsetregs = 0;
-+      return 0;
-+    }
-+    perror_with_name (_("Couldn't get general-purpose registers."));
-+  }
-+
-+  supply_gregset (regcache, (const gdb_gregset_t *) &gregset);
-+
-+  return 1;
-+}
-+
-+
-+/* This is a wrapper for the fetch_all_gp_regs function.  It is
-+   responsible for verifying if this target has the ptrace request
-+   that can be used to fetch all general-purpose registers at one
-+   shot.  If it doesn't, then we should fetch them using the
-+   old-fashioned way, which is to iterate over the registers and
-+   request them one by one.  */
-+static void
-+fetch_gp_regs (struct regcache *regcache, int tid)
-+{
-+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
-+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
-+  int i;
-+
-+  if (have_ptrace_getsetregs)
-+    if (fetch_all_gp_regs (regcache, tid))
-+      return;
-+
-+  /* If we've hit this point, it doesn't really matter which
-+     architecture we are using.  We just need to read the
-+     registers in the "old-fashioned way".  */
-+  for (i = MICROBLAZE_R0_REGNUM; i <= MICROBLAZE_FSR_REGNUM; i++)
-+    fetch_register (regcache, tid, i);
-+}
-+
-+
-+static void
-+store_register (const struct regcache *regcache, int tid, int regno)
-+{
-+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
-+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
-+  /* This isn't really an address.  But ptrace thinks of it as one.  */
-+  CORE_ADDR regaddr = microblaze_register_u_addr (gdbarch, regno);
-+  int i;
-+  size_t bytes_to_transfer;
-+  char buf[MAX_REGISTER_SIZE];
-+
-+  if (regaddr == -1)
-+    return;
-+
-+  /* First collect the register.  Keep in mind that the regcache's
-+     idea of the register's size may not be a multiple of sizeof
-+     (long).  */
-+  memset (buf, 0, sizeof buf);
-+  bytes_to_transfer = align_up (register_size (gdbarch, regno), sizeof (long));
-+  if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_LITTLE)
-+  {
-+    /* Little-endian values always sit at the left end of the buffer.  */
-+    regcache_raw_collect (regcache, regno, buf);
-+  }
-+  else if (gdbarch_byte_order (gdbarch) == BFD_ENDIAN_BIG)
-+  {
-+    /* Big-endian values sit at the right end of the buffer.  */
-+    size_t padding = (bytes_to_transfer - register_size (gdbarch, regno));
-+    regcache_raw_collect (regcache, regno, buf + padding);
-+  }
-+
-+  for (i = 0; i < bytes_to_transfer; i += sizeof (long))
-+  {
-+    long l;
-+
-+    memcpy (&l, &buf[i], sizeof (l));
-+    errno = 0;
-+    ptrace (PTRACE_POKEUSER, tid, (PTRACE_TYPE_ARG3) regaddr, l);
-+    regaddr += sizeof (long);
-+
-+    if (errno != 0)
-+    {
-+      char message[128];
-+      sprintf (message, "writing register %s (#%d)",
-+               gdbarch_register_name (gdbarch, regno), regno);
-+      perror_with_name (message);
-+    }
-+  }
-+}
-+
-+/* This function actually issues the request to ptrace, telling
-+   it to store all general-purpose registers present in the specified
-+   regset.
-+
-+   If the ptrace request does not exist, this function returns 0
-+   and properly sets the have_ptrace_* flag.  If the request fails,
-+   this function calls perror_with_name.  Otherwise, if the request
-+   succeeds, then the regcache is stored and 1 is returned.  */
-+static int
-+store_all_gp_regs (const struct regcache *regcache, int tid, int regno)
-+{
-+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
-+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
-+  gdb_gregset_t gregset;
-+
-+  if (ptrace (PTRACE_GETREGS, tid, 0, (void *) &gregset) < 0)
-+    {
-+      if (errno == EIO)
-+      {
-+        have_ptrace_getsetregs = 0;
-+        return 0;
-+      }
-+      perror_with_name (_("Couldn't get general-purpose registers."));
-+    }
-+
-+  fill_gregset (regcache, &gregset, regno);
-+
-+  if (ptrace (PTRACE_SETREGS, tid, 0, (void *) &gregset) < 0)
-+    {
-+      if (errno == EIO)
-+      {
-+        have_ptrace_getsetregs = 0;
-+        return 0;
-+      }
-+      perror_with_name (_("Couldn't set general-purpose registers."));
-+    }
-+
-+  return 1;
-+}
-+
-+/* This is a wrapper for the store_all_gp_regs function.  It is
-+   responsible for verifying if this target has the ptrace request
-+   that can be used to store all general-purpose registers at one
-+   shot.  If it doesn't, then we should store them using the
-+   old-fashioned way, which is to iterate over the registers and
-+   store them one by one.  */
-+static void
-+store_gp_regs (const struct regcache *regcache, int tid, int regno)
-+{
-+  struct gdbarch *gdbarch = get_regcache_arch (regcache);
-+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
-+  int i;
-+
-+  if (have_ptrace_getsetregs)
-+    if (store_all_gp_regs (regcache, tid, regno))
-+      return;
-+
-+  /* If we hit this point, it doesn't really matter which
-+     architecture we are using.  We just need to store the
-+     registers in the "old-fashioned way".  */
-+  for (i = MICROBLAZE_R0_REGNUM; i <= MICROBLAZE_FSR_REGNUM; i++)
-+    store_register (regcache, tid, i);
-+}
-+
-+
-+/* Fetch registers from the child process.  Fetch all registers if
-+   regno == -1, otherwise fetch all general registers or all floating
-+   point registers depending upon the value of regno.  */
-+
-+static void
-+microblaze_linux_fetch_inferior_registers (struct target_ops *ops,
-+				    struct regcache *regcache, int regno)
-+{
-+  /* Get the thread id for the ptrace call.  */
-+  int tid = GET_THREAD_ID (inferior_ptid);
-+
-+  if (regno == -1)
-+    fetch_gp_regs (regcache, tid);
-+  else
-+    fetch_register (regcache, tid, regno);
-+}
-+