* gdbarch.sh (core_xfer_shared_libraries): New.

	* corelow.c (core_xfer_partial): Handle TARGET_OBJECT_LIBRARIES.

	* gdb_obstack.h (obstack_grow_str, obstack_grow_str0): New.

	* xml-support.c (gdb_xml_parse): Debug output tweaks.
	(xml_escape_text): New.
	* xml-support.h (xml_escape_text): Declare.

	* config/i386/cygwin.mh (NATDEPFILES): Move corelow.o to ...
	* config/i386/cygwin.mt (TDEPFILES): ... here.

	* win32-nat.c: (fetch_elf_core_registers): Delete.
	(win32_elf_core_fn): Delete.
	(_initialize_core_win32): Delete.

	* i386-cygwin-tdep.c: Include "regset.h", "gdb_objstack.h",
	"xml-support.h" and "gdbcore.h".
	(i386_win32_gregset_reg_offset): New.
	(I386_WIN32_SIZEOF_GREGSET): New.
	(i386_win32_regset_from_core_section): New.
	(win32_xfer_shared_library): New.
	(struct cpms_data): New.
	(core_process_module_section): New.
	(win32_core_xfer_shared_libraries): New.
	(i386_cygwin_skip_trampoline_code): Register gregset_reg_offset,
	gregset_num_regs, sizeof_gregset members of tdep.  Register
	regset_from_core_section and core_xfer_shared_libraries callbacks.

	* Makefile.in (i386-cygwin-tdep.o): Update dependencies.
	* gdbarch.h, gdbarch.c: Regenerate.

14 files changed, 408 insertions, 98 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 09923d5..7dce17c 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,39 @@
+2007-09-04  Pedro Alves  <pedro_alves@portugalmail.pt>
+	    Daniel Jacobowitz  <dan@codesourcery.com>
+
+	* gdbarch.sh (core_xfer_shared_libraries): New.
+
+	* corelow.c (core_xfer_partial): Handle TARGET_OBJECT_LIBRARIES.
+
+	* gdb_obstack.h (obstack_grow_str, obstack_grow_str0): New.
+
+	* xml-support.c (gdb_xml_parse): Debug output tweaks.
+	(xml_escape_text): New.
+	* xml-support.h (xml_escape_text): Declare.
+
+	* config/i386/cygwin.mh (NATDEPFILES): Move corelow.o to ...
+	* config/i386/cygwin.mt (TDEPFILES): ... here.
+
+	* win32-nat.c: (fetch_elf_core_registers): Delete.
+	(win32_elf_core_fn): Delete.
+	(_initialize_core_win32): Delete.
+
+	* i386-cygwin-tdep.c: Include "regset.h", "gdb_objstack.h",
+	"xml-support.h" and "gdbcore.h".
+	(i386_win32_gregset_reg_offset): New.
+	(I386_WIN32_SIZEOF_GREGSET): New.
+	(i386_win32_regset_from_core_section): New.
+	(win32_xfer_shared_library): New.
+	(struct cpms_data): New.
+	(core_process_module_section): New.
+	(win32_core_xfer_shared_libraries): New.
+	(i386_cygwin_skip_trampoline_code): Register gregset_reg_offset,
+	gregset_num_regs, sizeof_gregset members of tdep.  Register
+	regset_from_core_section and core_xfer_shared_libraries callbacks.
+
+	* Makefile.in (i386-cygwin-tdep.o): Update dependencies.
+	* gdbarch.h, gdbarch.c: Regenerate.
+
 2007-09-03  Daniel Jacobowitz  <dan@codesourcery.com>
 
 	* corelow.c (core_xfer_partial): Pass writebuf to
diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index a8c7d37..4deb4f5d 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -2102,7 +2102,8 @@ i386bsd-nat.o: i386bsd-nat.c $(defs_h) $(inferior_h) $(regcache_h) \
 i386bsd-tdep.o: i386bsd-tdep.c $(defs_h) $(arch_utils_h) $(frame_h) \
 	$(gdbcore_h) $(regcache_h) $(osabi_h) $(gdb_string_h) $(i386_tdep_h)
 i386-cygwin-tdep.o: i386-cygwin-tdep.c $(defs_h) $(osabi_h) $(gdb_string_h) \
-	$(i386_tdep_h)
+	$(i386_tdep_h) $(regset_h) $(gdb_obstack_h) $(xml_support_h) \
+	$(gdbcore_h)
 i386fbsd-nat.o: i386fbsd-nat.c $(defs_h) $(inferior_h) $(regcache_h) \
 	$(target_h) $(fbsd_nat_h) $(i386_tdep_h) $(i386bsd_nat_h) \
 	$(bsd_kvm_h)
diff --git a/gdb/config/i386/cygwin.mh b/gdb/config/i386/cygwin.mh
index 92a0d05..36f6cc5 100644
--- a/gdb/config/i386/cygwin.mh
+++ b/gdb/config/i386/cygwin.mh
@@ -1,4 +1,4 @@
 MH_CFLAGS=
-NATDEPFILES= i386-nat.o win32-nat.o corelow.o
+NATDEPFILES= i386-nat.o win32-nat.o
 NAT_FILE=nm-cygwin.h
 XM_CLIBS=
diff --git a/gdb/config/i386/cygwin.mt b/gdb/config/i386/cygwin.mt
index 47cfbaa..8ec3c44 100644
--- a/gdb/config/i386/cygwin.mt
+++ b/gdb/config/i386/cygwin.mt
@@ -1,3 +1,3 @@
 # Target: Intel 386 run win32
 TDEPFILES= i386-tdep.o i386-cygwin-tdep.o i387-tdep.o \
-	   solib-target.o
+	   solib-target.o corelow.o
diff --git a/gdb/corelow.c b/gdb/corelow.c
index 28b0a22..408e95a 100644
--- a/gdb/corelow.c
+++ b/gdb/corelow.c
@@ -592,6 +592,18 @@ core_xfer_partial (struct target_ops *ops, enum target_object object,
 	}
       return -1;
 
+    case TARGET_OBJECT_LIBRARIES:
+      if (core_gdbarch
+	  && gdbarch_core_xfer_shared_libraries_p (core_gdbarch))
+	{
+	  if (writebuf)
+	    return -1;
+	  return
+	    gdbarch_core_xfer_shared_libraries (core_gdbarch,
+						readbuf, offset, len);
+	}
+      /* FALL THROUGH */
+
     default:
       if (ops->beneath != NULL)
 	return ops->beneath->to_xfer_partial (ops->beneath, object, annex,
diff --git a/gdb/gdb_obstack.h b/gdb/gdb_obstack.h
index fc8e687..7e1a76e 100644
--- a/gdb/gdb_obstack.h
+++ b/gdb/gdb_obstack.h
@@ -40,4 +40,9 @@
 #define obstack_chunk_alloc xmalloc
 #define obstack_chunk_free xfree
 
+#define obstack_grow_str(OBSTACK,STRING) \
+  obstack_grow (OBSTACK, STRING, strlen (STRING))
+#define obstack_grow_str0(OBSTACK,STRING) \
+  obstack_grow0 (OBSTACK, STRING, strlen (STRING))
+
 #endif
diff --git a/gdb/gdbarch.c b/gdb/gdbarch.c
index 873a1e7..e4bcaca 100644
--- a/gdb/gdbarch.c
+++ b/gdb/gdbarch.c
@@ -2,7 +2,7 @@
 
 /* Dynamic architecture support for GDB, the GNU debugger.
 
-   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
    Free Software Foundation, Inc.
 
    This file is part of GDB.
@@ -11,12 +11,12 @@
    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/>.  */
 
@@ -225,6 +225,7 @@ struct gdbarch
   gdbarch_register_reggroup_p_ftype *register_reggroup_p;
   gdbarch_fetch_pointer_argument_ftype *fetch_pointer_argument;
   gdbarch_regset_from_core_section_ftype *regset_from_core_section;
+  gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries;
   int vtable_function_descriptors;
   int vbit_in_delta;
   gdbarch_skip_permanent_breakpoint_ftype *skip_permanent_breakpoint;
@@ -346,6 +347,7 @@ struct gdbarch startup_gdbarch =
   default_register_reggroup_p,  /* register_reggroup_p */
   0,  /* fetch_pointer_argument */
   0,  /* regset_from_core_section */
+  0,  /* core_xfer_shared_libraries */
   0,  /* vtable_function_descriptors */
   0,  /* vbit_in_delta */
   0,  /* skip_permanent_breakpoint */
@@ -592,6 +594,7 @@ verify_gdbarch (struct gdbarch *current_gdbarch)
   /* Skip verify of register_reggroup_p, invalid_p == 0 */
   /* Skip verify of fetch_pointer_argument, has predicate */
   /* Skip verify of regset_from_core_section, has predicate */
+  /* Skip verify of core_xfer_shared_libraries, has predicate */
   /* Skip verify of vtable_function_descriptors, invalid_p == 0 */
   /* Skip verify of vbit_in_delta, invalid_p == 0 */
   /* Skip verify of skip_permanent_breakpoint, has predicate */
@@ -711,6 +714,12 @@ gdbarch_dump (struct gdbarch *current_gdbarch, struct ui_file *file)
                       "gdbarch_dump: convert_register_p = <0x%lx>\n",
                       (long) current_gdbarch->convert_register_p);
   fprintf_unfiltered (file,
+                      "gdbarch_dump: gdbarch_core_xfer_shared_libraries_p() = %d\n",
+                      gdbarch_core_xfer_shared_libraries_p (current_gdbarch));
+  fprintf_unfiltered (file,
+                      "gdbarch_dump: core_xfer_shared_libraries = <0x%lx>\n",
+                      (long) current_gdbarch->core_xfer_shared_libraries);
+  fprintf_unfiltered (file,
                       "gdbarch_dump: decr_pc_after_break = 0x%s\n",
                       paddr_nz (current_gdbarch->decr_pc_after_break));
   fprintf_unfiltered (file,
@@ -2887,6 +2896,30 @@ set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch,
 }
 
 int
+gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch)
+{
+  gdb_assert (gdbarch != NULL);
+  return gdbarch->core_xfer_shared_libraries != NULL;
+}
+
+LONGEST
+gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len)
+{
+  gdb_assert (gdbarch != NULL);
+  gdb_assert (gdbarch->core_xfer_shared_libraries != NULL);
+  if (gdbarch_debug >= 2)
+    fprintf_unfiltered (gdb_stdlog, "gdbarch_core_xfer_shared_libraries called\n");
+  return gdbarch->core_xfer_shared_libraries (gdbarch, readbuf, offset, len);
+}
+
+void
+set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch,
+                                        gdbarch_core_xfer_shared_libraries_ftype core_xfer_shared_libraries)
+{
+  gdbarch->core_xfer_shared_libraries = core_xfer_shared_libraries;
+}
+
+int
 gdbarch_vtable_function_descriptors (struct gdbarch *gdbarch)
 {
   gdb_assert (gdbarch != NULL);
diff --git a/gdb/gdbarch.h b/gdb/gdbarch.h
index 9395cf5..a573bde 100644
--- a/gdb/gdbarch.h
+++ b/gdb/gdbarch.h
@@ -2,7 +2,7 @@
 
 /* Dynamic architecture support for GDB, the GNU debugger.
 
-   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
+   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
    Free Software Foundation, Inc.
 
    This file is part of GDB.
@@ -11,12 +11,12 @@
    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/>.  */
 
@@ -649,6 +649,15 @@ typedef const struct regset * (gdbarch_regset_from_core_section_ftype) (struct g
 extern const struct regset * gdbarch_regset_from_core_section (struct gdbarch *gdbarch, const char *sect_name, size_t sect_size);
 extern void set_gdbarch_regset_from_core_section (struct gdbarch *gdbarch, gdbarch_regset_from_core_section_ftype *regset_from_core_section);
 
+/* Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
+   core file into buffer READBUF with length LEN. */
+
+extern int gdbarch_core_xfer_shared_libraries_p (struct gdbarch *gdbarch);
+
+typedef LONGEST (gdbarch_core_xfer_shared_libraries_ftype) (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
+extern LONGEST gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdb_byte *readbuf, ULONGEST offset, LONGEST len);
+extern void set_gdbarch_core_xfer_shared_libraries (struct gdbarch *gdbarch, gdbarch_core_xfer_shared_libraries_ftype *core_xfer_shared_libraries);
+
 /* If the elements of C++ vtables are in-place function descriptors rather
    than normal function pointers (which may point to code or a descriptor),
    set this to one. */
diff --git a/gdb/gdbarch.sh b/gdb/gdbarch.sh
index 30e31fb..2307425 100755
--- a/gdb/gdbarch.sh
+++ b/gdb/gdbarch.sh
@@ -634,6 +634,10 @@ F::CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct t
 # name SECT_NAME and size SECT_SIZE.
 M::const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size
 
+# Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from
+# core file into buffer READBUF with length LEN.
+M::LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len
+
 # If the elements of C++ vtables are in-place function descriptors rather
 # than normal function pointers (which may point to code or a descriptor),
 # set this to one.
diff --git a/gdb/i386-cygwin-tdep.c b/gdb/i386-cygwin-tdep.c
index f70d98c..0185a0a 100644
--- a/gdb/i386-cygwin-tdep.c
+++ b/gdb/i386-cygwin-tdep.c
@@ -19,10 +19,197 @@
 
 #include "defs.h"
 #include "osabi.h"
-
 #include "gdb_string.h"
-
 #include "i386-tdep.h"
+#include "regset.h"
+#include "gdb_obstack.h"
+#include "xml-support.h"
+#include "gdbcore.h"
+
+/* Core file support.  */
+
+/* This vector maps GDB's idea of a register's number into an address
+   in the win32 exception context vector.  */
+
+static int i386_win32_gregset_reg_offset[] =
+{
+  176, /* eax */
+  172, /* ecx */
+  168, /* edx */
+  164, /* ebx */
+
+  196, /* esp */
+  180, /* ebp */
+  160, /* esi */
+  156, /* edi */
+
+  184, /* eip */
+  192, /* eflags */
+  188, /* cs */
+  200, /* ss */
+
+  152, /* ds */
+  148, /* es */
+  144, /* fs */
+  140, /* gs */
+
+  56, /* FloatSave.RegisterArea[0 * 10] */
+  66, /* FloatSave.RegisterArea[1 * 10] */
+  76, /* FloatSave.RegisterArea[2 * 10] */
+  86, /* FloatSave.RegisterArea[3 * 10] */
+  96, /* FloatSave.RegisterArea[4 * 10] */
+  106, /* FloatSave.RegisterArea[5 * 10] */
+  116, /* FloatSave.RegisterArea[6 * 10] */
+  126, /* FloatSave.RegisterArea[7 * 10] */
+
+  28, /* FloatSave.ControlWord */
+  32, /* FloatSave.StatusWord */
+  36, /* FloatSave.TagWord */
+  44, /* FloatSave.ErrorSelector */
+  40, /* FloatSave.ErrorOffset */
+  52, /* FloatSave.DataSelector */
+  48, /* FloatSave.DataOffset */
+  44, /* FloatSave.ErrorSelector */
+
+  /* XMM0-7 */
+  364, /* ExtendedRegisters[10*16] */
+  380, /* ExtendedRegisters[11*16] */
+  396, /* ExtendedRegisters[12*16] */
+  412, /* ExtendedRegisters[13*16] */
+  428, /* ExtendedRegisters[14*16] */
+  444, /* ExtendedRegisters[15*16] */
+  460, /* ExtendedRegisters[16*16] */
+  476, /* ExtendedRegisters[17*16] */
+
+  /* MXCSR */
+  228 /* ExtendedRegisters[24] */
+};
+
+#define I386_WIN32_SIZEOF_GREGSET 716
+
+/* Return the appropriate register set for the core section identified
+   by SECT_NAME and SECT_SIZE.  */
+
+static const struct regset *
+i386_win32_regset_from_core_section (struct gdbarch *gdbarch,
+				     const char *sect_name, size_t sect_size)
+{
+  struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
+
+  if (strcmp (sect_name, ".reg") == 0
+      && sect_size == I386_WIN32_SIZEOF_GREGSET)
+    {
+      if (tdep->gregset == NULL)
+        tdep->gregset = regset_alloc (gdbarch, i386_supply_gregset,
+                                      i386_collect_gregset);
+      return tdep->gregset;
+    }
+
+  return NULL;
+}
+
+static void
+win32_xfer_shared_library (const char* so_name, CORE_ADDR load_addr,
+			   struct obstack *obstack)
+{
+  char *p;
+  obstack_grow_str (obstack, "<library name=\"");
+  p = xml_escape_text (so_name);
+  obstack_grow_str (obstack, p);
+  xfree (p);
+  obstack_grow_str (obstack, "\"><segment address=\"0x");
+  /* The symbols in a dll are offset by 0x1000, which is the the
+     offset from 0 of the first byte in an image - because of the file
+     header and the section alignment. */
+  p = paddr_nz (load_addr + 0x1000);
+  obstack_grow_str (obstack, p);
+  obstack_grow_str (obstack, "\"/></library>");
+}
+
+struct cpms_data
+{
+  struct obstack *obstack;
+  int module_count;
+};
+
+static void
+core_process_module_section (bfd *abfd, asection *sect, void *obj)
+{
+  struct cpms_data *data = obj;
+
+  char *module_name;
+  size_t module_name_size;
+  CORE_ADDR base_addr;
+
+  char *buf = NULL;
+
+  if (strncmp (sect->name, ".module", 7) != 0)
+    return;
+
+  buf = xmalloc (bfd_get_section_size (sect) + 1);
+  if (!buf)
+    {
+      printf_unfiltered ("memory allocation failed for %s\n", sect->name);
+      goto out;
+    }
+  if (!bfd_get_section_contents (abfd, sect,
+				 buf, 0, bfd_get_section_size (sect)))
+    goto out;
+
+
+
+  /* A DWORD (data_type) followed by struct win32_core_module_info.  */
+
+  base_addr =
+    extract_unsigned_integer (buf + 4, 4);
+
+  module_name_size =
+    extract_unsigned_integer (buf + 8, 4);
+
+  module_name = buf + 12;
+  if (module_name - buf + module_name_size > bfd_get_section_size (sect))
+    goto out;
+
+  /* The first module is the .exe itself.  */
+  if (data->module_count != 0)
+    win32_xfer_shared_library (module_name, base_addr, data->obstack);
+  data->module_count++;
+
+out:
+  if (buf)
+    xfree (buf);
+  return;
+}
+
+static LONGEST
+win32_core_xfer_shared_libraries (struct gdbarch *gdbarch,
+				  gdb_byte *readbuf,
+				  ULONGEST offset, LONGEST len)
+{
+  struct obstack obstack;
+  const char *buf;
+  LONGEST len_avail;
+  struct cpms_data data = { &obstack, 0 };
+
+  obstack_init (&obstack);
+  obstack_grow_str (&obstack, "<library-list>\n");
+  bfd_map_over_sections (core_bfd,
+			 core_process_module_section,
+			 &data);
+  obstack_grow_str0 (&obstack, "</library-list>\n");
+
+  buf = obstack_finish (&obstack);
+  len_avail = strlen (buf);
+  if (offset >= len_avail)
+    return 0;
+
+  if (len > len_avail - offset)
+    len = len_avail - offset;
+  memcpy (readbuf, buf + offset, len);
+
+  obstack_free (&obstack, NULL);
+  return len;
+}
 
 static CORE_ADDR
 i386_cygwin_skip_trampoline_code (struct frame_info *frame, CORE_ADDR pc)
@@ -38,18 +225,32 @@ i386_cygwin_init_abi (struct gdbarch_info info, struct gdbarch *gdbarch)
   set_gdbarch_skip_trampoline_code (gdbarch, i386_cygwin_skip_trampoline_code);
 
   tdep->struct_return = reg_struct_return;
+
+  tdep->gregset_reg_offset = i386_win32_gregset_reg_offset;
+  tdep->gregset_num_regs = ARRAY_SIZE (i386_win32_gregset_reg_offset);
+  tdep->sizeof_gregset = I386_WIN32_SIZEOF_GREGSET;
+
+  /* Core file support.  */
+  set_gdbarch_regset_from_core_section
+    (gdbarch, i386_win32_regset_from_core_section);
+  set_gdbarch_core_xfer_shared_libraries
+    (gdbarch, win32_core_xfer_shared_libraries);
 }
 
 static enum gdb_osabi
-i386_cygwin_osabi_sniffer (bfd * abfd)
-{ 
+i386_cygwin_osabi_sniffer (bfd *abfd)
+{
   char *target_name = bfd_get_target (abfd);
 
-  /* Interix also uses pei-i386. 
+  /* Interix also uses pei-i386.
      We need a way to distinguish between the two. */
   if (strcmp (target_name, "pei-i386") == 0)
     return GDB_OSABI_CYGWIN;
 
+  /* Cygwin uses elf core dumps.  */
+  if (strcmp (target_name, "elf32-i386") == 0)
+    return GDB_OSABI_CYGWIN;
+
   return GDB_OSABI_UNKNOWN;
 }
 
@@ -62,6 +263,10 @@ _initialize_i386_cygwin_tdep (void)
   gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_coff_flavour,
                                   i386_cygwin_osabi_sniffer);
 
+  /* Cygwin uses elf core dumps.  */
+  gdbarch_register_osabi_sniffer (bfd_arch_i386, bfd_target_elf_flavour,
+                                  i386_cygwin_osabi_sniffer);
+
   gdbarch_register_osabi (bfd_arch_i386, 0, GDB_OSABI_CYGWIN,
                           i386_cygwin_init_abi);
 }
diff --git a/gdb/win32-nat.c b/gdb/win32-nat.c
index df83f90..7100e35 100644
--- a/gdb/win32-nat.c
+++ b/gdb/win32-nat.c
@@ -2242,23 +2242,6 @@ win32_current_sos (void)
   return start;
 }
 
-static void
-fetch_elf_core_registers (struct regcache *regcache,
-			  char *core_reg_sect,
-			  unsigned core_reg_size,
-			  int which,
-			  CORE_ADDR reg_addr)
-{
-  int r;
-  if (core_reg_size < sizeof (CONTEXT))
-    {
-      error (_("Core file register section too small (%u bytes)."), core_reg_size);
-      return;
-    }
-  for (r = 0; r < gdbarch_num_regs (current_gdbarch); r++)
-    regcache_raw_supply (regcache, r, core_reg_sect + mappings[r]);
-}
-
 static int
 open_symbol_file_object (void *from_ttyp)
 {
@@ -2460,21 +2443,6 @@ win32_win32_thread_alive (ptid_t ptid)
     FALSE : TRUE;
 }
 
-static struct core_fns win32_elf_core_fns =
-{
-  bfd_target_elf_flavour,
-  default_check_format,
-  default_core_sniffer,
-  fetch_elf_core_registers,
-  NULL
-};
-
-void
-_initialize_core_win32 (void)
-{
-  deprecated_add_core_fns (&win32_elf_core_fns);
-}
-
 void
 _initialize_check_for_gdb_ini (void)
 {
diff --git a/gdb/windows-nat.c b/gdb/windows-nat.c
index df83f90..7100e35 100644
--- a/gdb/windows-nat.c
+++ b/gdb/windows-nat.c
@@ -2242,23 +2242,6 @@ win32_current_sos (void)
   return start;
 }
 
-static void
-fetch_elf_core_registers (struct regcache *regcache,
-			  char *core_reg_sect,
-			  unsigned core_reg_size,
-			  int which,
-			  CORE_ADDR reg_addr)
-{
-  int r;
-  if (core_reg_size < sizeof (CONTEXT))
-    {
-      error (_("Core file register section too small (%u bytes)."), core_reg_size);
-      return;
-    }
-  for (r = 0; r < gdbarch_num_regs (current_gdbarch); r++)
-    regcache_raw_supply (regcache, r, core_reg_sect + mappings[r]);
-}
-
 static int
 open_symbol_file_object (void *from_ttyp)
 {
@@ -2460,21 +2443,6 @@ win32_win32_thread_alive (ptid_t ptid)
     FALSE : TRUE;
 }
 
-static struct core_fns win32_elf_core_fns =
-{
-  bfd_target_elf_flavour,
-  default_check_format,
-  default_core_sniffer,
-  fetch_elf_core_registers,
-  NULL
-};
-
-void
-_initialize_core_win32 (void)
-{
-  deprecated_add_core_fns (&win32_elf_core_fns);
-}
-
 void
 _initialize_check_for_gdb_ini (void)
 {
diff --git a/gdb/xml-support.c b/gdb/xml-support.c
index 8a4762c..9cee5ef 100644
--- a/gdb/xml-support.c
+++ b/gdb/xml-support.c
@@ -544,6 +544,8 @@ gdb_xml_parse (struct gdb_xml_parser *parser, const char *buffer)
   enum XML_Status status;
   const char *error_string;
 
+  gdb_xml_debug (parser, _("Starting:\n%s"), buffer);
+
   status = XML_Parse (parser->expat_parser, buffer, strlen (buffer), 1);
 
   if (status == XML_STATUS_OK && parser->error.reason == 0)
@@ -869,8 +871,7 @@ xml_process_xincludes (const char *name, const char *text,
       result = xstrdup (obstack_finish (&data->obstack));
 
       if (depth == 0)
-	gdb_xml_debug (parser, _("XInclude processing succeeded:\n%s"),
-		       result);
+	gdb_xml_debug (parser, _("XInclude processing succeeded."));
     }
   else
     result = NULL;
@@ -934,6 +935,68 @@ show_debug_xml (struct ui_file *file, int from_tty,
   fprintf_filtered (file, _("XML debugging is %s.\n"), value);
 }
 
+/* Return a malloc allocated string with special characters from TEXT
+   replaced by entity references.  */
+
+char *
+xml_escape_text (const char *text)
+{
+  char *result;
+  int i, special;
+
+  /* Compute the length of the result.  */
+  for (i = 0, special = 0; text[i] != '\0'; i++)
+    switch (text[i])
+      {
+      case '\'':
+      case '\"':
+	special += 5;
+	break;
+      case '&':
+	special += 4;
+	break;
+      case '<':
+      case '>':
+	special += 3;
+	break;
+      default:
+	break;
+      }
+
+  /* Expand the result.  */
+  result = xmalloc (i + special + 1);
+  for (i = 0, special = 0; text[i] != '\0'; i++)
+    switch (text[i])
+      {
+      case '\'':
+	strcpy (result + i + special, "&apos;");
+	special += 5;
+	break;
+      case '\"':
+	strcpy (result + i + special, "&quot;");
+	special += 5;
+	break;
+      case '&':
+	strcpy (result + i + special, "&amp;");
+	special += 4;
+	break;
+      case '<':
+	strcpy (result + i + special, "&lt;");
+	special += 3;
+	break;
+      case '>':
+	strcpy (result + i + special, "&gt;");
+	special += 3;
+	break;
+      default:
+	result[i + special] = text[i];
+	break;
+      }
+  result[i + special] = '\0';
+
+  return result;
+}
+
 void _initialize_xml_support (void);
 
 void
diff --git a/gdb/xml-support.h b/gdb/xml-support.h
index b8377be..b480fe0 100644
--- a/gdb/xml-support.h
+++ b/gdb/xml-support.h
@@ -28,24 +28,6 @@ struct gdb_xml_parser;
 struct gdb_xml_element;
 struct gdb_xml_attribute;
 
-/* Support for XInclude.  */
-
-/* Callback to fetch a new XML file, based on the provided HREF.  */
-
-typedef char *(*xml_fetch_another) (const char *href, void *baton);
-
-/* Return a new string which is the expansion of TEXT after processing
-   <xi:include> tags.  FETCHER will be called (with FETCHER_BATON) to
-   retrieve any new files.  DEPTH should be zero on the initial call.
-
-   On failure, this function uses NAME in a warning and returns NULL.
-   It may throw an exception, but does not for XML parsing
-   problems.  */
-
-char *xml_process_xincludes (const char *name, const char *text,
-			     xml_fetch_another fetcher, void *fetcher_baton,
-			     int depth);
-
 /* Return an XML document which was compiled into GDB, from
    the given FILENAME, or NULL if the file was not compiled in.  */
 
@@ -62,8 +44,32 @@ LONGEST xml_builtin_xfer_partial (const char *filename,
 
 /* The text of compiled-in XML documents, from xml-builtin.c
    (generated).  */
+
 extern const char *xml_builtin[][2];
 
+/* Return a malloc allocated string with special characters from TEXT
+   replaced by entity references.  */
+
+char *xml_escape_text (const char *text);
+
+/* Support for XInclude.  */
+
+/* Callback to fetch a new XML file, based on the provided HREF.  */
+
+typedef char *(*xml_fetch_another) (const char *href, void *baton);
+
+/* Return a new string which is the expansion of TEXT after processing
+   <xi:include> tags.  FETCHER will be called (with FETCHER_BATON) to
+   retrieve any new files.  DEPTH should be zero on the initial call.
+
+   On failure, this function uses NAME in a warning and returns NULL.
+   It may throw an exception, but does not for XML parsing
+   problems.  */
+
+char *xml_process_xincludes (const char *name, const char *text,
+			     xml_fetch_another fetcher, void *fetcher_baton,
+			     int depth);
+
 /* Simplified XML parser infrastructure.  */
 
 /* A name and value pair, used to record parsed attributes.  */