diff --git a/gdb/syscalls/gdb-syscalls.dtd b/gdb/syscalls/gdb-syscalls.dtd
new file mode 100644
index 0000000..0d40ab4
--- /dev/null
+++ b/gdb/syscalls/gdb-syscalls.dtd
@@ -0,0 +1,21 @@
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diff --git a/gdb/syscalls/i386-syscalls.xml b/gdb/syscalls/i386-syscalls.xml
new file mode 100644
index 0000000..8044c7b
--- /dev/null
+++ b/gdb/syscalls/i386-syscalls.xml
@@ -0,0 +1,337 @@
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diff --git a/gdb/syscalls/ppc-syscalls.xml b/gdb/syscalls/ppc-syscalls.xml
new file mode 100644
index 0000000..4ac794f
--- /dev/null
+++ b/gdb/syscalls/ppc-syscalls.xml
@@ -0,0 +1,312 @@
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diff --git a/gdb/syscalls/ppc64-syscalls.xml b/gdb/syscalls/ppc64-syscalls.xml
new file mode 100644
index 0000000..2795de0
--- /dev/null
+++ b/gdb/syscalls/ppc64-syscalls.xml
@@ -0,0 +1,306 @@
+
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diff --git a/gdb/xml-syscall.c b/gdb/xml-syscall.c
new file mode 100644
index 0000000..8f16752
--- /dev/null
+++ b/gdb/xml-syscall.c
@@ -0,0 +1,438 @@
+/* Functions that provide the mechanism to parse a syscall XML file
+ and get its values.
+
+ Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
+ 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008
+ 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 . */
+
+#include "defs.h"
+#include "gdbtypes.h"
+#include "xml-support.h"
+#include "xml-syscall.h"
+
+#include "filenames.h"
+
+#include "gdb_assert.h"
+
+#ifndef HAVE_LIBEXPAT
+
+/* Dummy functions to indicate that there's no support for fetching
+ syscalls information. */
+
+static void
+syscall_warn_user (void)
+{
+ static int have_warned = 0;
+ if (!have_warned)
+ {
+ have_warned = 1;
+ warning (_("Can not parse XML syscalls information; XML support was "
+ "disabled at compile time"));
+ }
+}
+
+const struct syscalls_info *
+xml_init_syscalls_info (const char *filename)
+{
+ syscall_warn_user ();
+ return NULL;
+}
+
+int
+xml_get_syscall_number (const struct syscalls_info *sysinfo,
+ const char *syscall_name)
+{
+ syscall_warn_user ();
+ return UNKNOWN_SYSCALL;
+}
+
+const char *
+xml_get_syscall_name (const struct syscalls_info *sysinfo,
+ int syscall_number)
+{
+ syscall_warn_user ();
+ return NULL;
+}
+
+int
+xml_number_of_syscalls (const struct syscalls_info *sysinfo)
+{
+ syscall_warn_user ();
+ return 0;
+}
+
+const char **
+xml_list_of_syscalls (const struct syscalls_info *sysinfo)
+{
+ syscall_warn_user ();
+ return NULL;
+}
+
+#else
+
+/* Structure which describes a syscall. */
+
+typedef struct syscall_desc
+{
+ /* The syscall number. */
+
+ int number;
+
+ /* The syscall name. */
+
+ char *name;
+} *syscall_desc_p;
+DEF_VEC_P(syscall_desc_p);
+
+/* Structure that represents syscalls information. */
+
+struct syscalls_info
+{
+ /* The number of syscalls in this system. */
+
+ int number_of_syscalls;
+
+ /* The syscalls. */
+
+ VEC(syscall_desc_p) *syscalls;
+};
+
+/* Callback data for syscall information parsing. */
+
+struct syscall_parsing_data
+{
+ /* The syscalls_info we are building. */
+
+ struct syscalls_info *sysinfo;
+};
+
+
+static struct syscalls_info *
+allocate_syscalls_info (void)
+{
+ return XZALLOC (struct syscalls_info);
+}
+
+static void
+sysinfo_free_syscalls_desc (struct syscall_desc *sd)
+{
+ xfree (sd->name);
+}
+
+static void
+free_syscalls_info (void *arg)
+{
+ struct syscalls_info *sysinfo = arg;
+ struct syscall_desc *sysdesc;
+ int i;
+
+ for (i = 0;
+ VEC_iterate (syscall_desc_p, sysinfo->syscalls, i, sysdesc);
+ i++)
+ sysinfo_free_syscalls_desc (sysdesc);
+ VEC_free (syscall_desc_p, sysinfo->syscalls);
+
+ xfree (sysinfo);
+}
+
+struct cleanup *
+make_cleanup_free_syscalls_info (struct syscalls_info *sysinfo)
+{
+ return make_cleanup (free_syscalls_info, sysinfo);
+}
+
+static void
+do_cleanup_fclose (void *file)
+{
+ fclose (file);
+}
+
+/* Open FILENAME, read all its text into memory, close it, and return
+ the text. If something goes wrong, return NULL and warn. */
+
+static char *
+fetch_xml_from_file (const char *filename, void *baton)
+{
+ const char *dirname = baton;
+ FILE *file;
+ struct cleanup *back_to;
+ char *text;
+ size_t len, offset;
+
+ if (dirname && *dirname)
+ {
+ char *fullname = concat (dirname, "/", filename, (char *) NULL);
+ if (fullname == NULL)
+ nomem (0);
+ file = fopen (fullname, FOPEN_RT);
+ xfree (fullname);
+ }
+ else
+ file = fopen (filename, FOPEN_RT);
+
+ if (file == NULL)
+ return NULL;
+
+ back_to = make_cleanup (do_cleanup_fclose, file);
+
+ /* Read in the whole file, one chunk at a time. */
+ len = 4096;
+ offset = 0;
+ text = xmalloc (len);
+ make_cleanup (free_current_contents, &text);
+ while (1)
+ {
+ size_t bytes_read;
+
+ /* Continue reading where the last read left off. Leave at least
+ one byte so that we can NUL-terminate the result. */
+ bytes_read = fread (text + offset, 1, len - offset - 1, file);
+ if (ferror (file))
+ {
+ warning (_("Read error from \"%s\""), filename);
+ do_cleanups (back_to);
+ return NULL;
+ }
+
+ offset += bytes_read;
+
+ if (feof (file))
+ break;
+
+ len = len * 2;
+ text = xrealloc (text, len);
+ }
+
+ fclose (file);
+ discard_cleanups (back_to);
+
+ text[offset] = '\0';
+ return text;
+}
+
+static void
+syscall_create_syscall_desc (struct syscalls_info *sysinfo,
+ const char *name, int number)
+{
+ struct syscall_desc *sysdesc = XZALLOC (struct syscall_desc);
+
+ sysdesc->name = xstrdup (name);
+ sysdesc->number = number;
+
+ VEC_safe_push (syscall_desc_p, sysinfo->syscalls, sysdesc);
+}
+
+/* Handle the start of a element. */
+
+static void
+syscall_start_syscalls_info (struct gdb_xml_parser *parser,
+ const struct gdb_xml_element *element,
+ void *user_data,
+ VEC(gdb_xml_value_s) *attributes)
+{
+ struct syscall_parsing_data *data = user_data;
+ struct syscalls_info *sysinfo = data->sysinfo;
+
+ /* Initializing fields. */
+ sysinfo->number_of_syscalls = 0;
+}
+
+/* Handle the start of a element. */
+
+static void
+syscall_start_syscall (struct gdb_xml_parser *parser,
+ const struct gdb_xml_element *element,
+ void *user_data, VEC(gdb_xml_value_s) *attributes)
+{
+ struct syscall_parsing_data *data = user_data;
+ struct gdb_xml_value *attrs = VEC_address (gdb_xml_value_s, attributes);
+ int len, i;
+ /* syscall info. */
+ char *name = NULL;
+ int number = 0;
+
+ len = VEC_length (gdb_xml_value_s, attributes);
+
+ for (i = 0; i < len; i++)
+ {
+ if (strcmp (attrs[i].name, "name") == 0)
+ name = attrs[i].value;
+ else if (strcmp (attrs[i].name, "number") == 0)
+ number = * (ULONGEST *) attrs[i].value;
+ else
+ internal_error (__FILE__, __LINE__,
+ _("Unknown attribute name '%s'."), attrs[i].name);
+ }
+
+ syscall_create_syscall_desc (data->sysinfo, name, number);
+
+ data->sysinfo->number_of_syscalls++;
+}
+
+
+/* The elements and attributes of an XML syscall document. */
+
+static const struct gdb_xml_attribute syscall_attr[] = {
+ { "number", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
+ { "name", GDB_XML_AF_NONE, NULL, NULL },
+ { NULL, GDB_XML_AF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_element syscalls_info_children[] = {
+ { "syscall", syscall_attr, NULL,
+ GDB_XML_EF_OPTIONAL | GDB_XML_EF_REPEATABLE,
+ syscall_start_syscall, NULL },
+ { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_element syselements[] = {
+ { "syscalls_info", NULL, syscalls_info_children,
+ GDB_XML_EF_NONE, syscall_start_syscalls_info, NULL },
+ { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
+};
+
+static struct syscalls_info *
+syscall_parse_xml (const char *document, xml_fetch_another fetcher,
+ void *fetcher_baton)
+{
+ struct cleanup *back_to, *result_cleanup;
+ struct gdb_xml_parser *parser;
+ struct syscall_parsing_data data;
+ char *expanded_text;
+ int i;
+
+ back_to = make_cleanup (null_cleanup, NULL);
+ parser = gdb_xml_create_parser_and_cleanup (_("syscalls info"),
+ syselements, &data);
+
+ memset (&data, 0, sizeof (struct syscall_parsing_data));
+ data.sysinfo = allocate_syscalls_info ();
+ result_cleanup = make_cleanup_free_syscalls_info (data.sysinfo);
+
+ if (gdb_xml_parse (parser, document) == 0)
+ {
+ /* Parsed successfully. */
+ discard_cleanups (result_cleanup);
+ do_cleanups (back_to);
+ return data.sysinfo;
+ }
+ else
+ {
+ warning (_("Could not load XML syscalls info; ignoring"));
+ do_cleanups (back_to);
+ return NULL;
+ }
+}
+
+const struct syscalls_info *
+xml_init_syscalls_info (const char *filename)
+{
+ char *full_file;
+ char *dirname;
+ struct syscalls_info *sysinfo;
+ struct cleanup *back_to;
+
+ full_file = fetch_xml_from_file (filename, gdb_datadir);
+ if (full_file == NULL)
+ {
+ warning (_("Could not open \"%s\""), filename);
+ return NULL;
+ }
+
+ back_to = make_cleanup (xfree, full_file);
+
+ dirname = ldirname (filename);
+ if (dirname != NULL)
+ make_cleanup (xfree, dirname);
+
+ sysinfo = syscall_parse_xml (full_file, fetch_xml_from_file, dirname);
+ do_cleanups (back_to);
+
+ return sysinfo;
+}
+
+int
+xml_get_syscall_number (const struct syscalls_info *sysinfo,
+ const char *syscall_name)
+{
+ struct syscall_desc *sysdesc;
+ int i;
+
+ if (sysinfo == NULL
+ || syscall_name == NULL)
+ return UNKNOWN_SYSCALL;
+
+ for (i = 0;
+ VEC_iterate(syscall_desc_p, sysinfo->syscalls, i, sysdesc);
+ i++)
+ if (strcmp (sysdesc->name, syscall_name) == 0)
+ return sysdesc->number;
+
+ return UNKNOWN_SYSCALL;
+}
+
+const char *
+xml_get_syscall_name (const struct syscalls_info *sysinfo,
+ int syscall_number)
+{
+ struct syscall_desc *sysdesc;
+ int i;
+
+ if (sysinfo == NULL
+ || syscall_number < 0
+ || syscall_number >= sysinfo->number_of_syscalls)
+ return NULL;
+
+ for (i = 0;
+ VEC_iterate(syscall_desc_p, sysinfo->syscalls, i, sysdesc);
+ i++)
+ if (sysdesc->number == syscall_number)
+ return sysdesc->name;
+
+ return NULL;
+}
+
+int
+xml_number_of_syscalls (const struct syscalls_info *sysinfo)
+{
+ return (sysinfo == NULL ? 0 : sysinfo->number_of_syscalls);
+}
+
+const char **
+xml_list_of_syscalls (const struct syscalls_info *sysinfo)
+{
+ struct syscall_desc *sysdesc;
+ const char **names = NULL;
+ int i;
+
+ if (sysinfo == NULL)
+ return NULL;
+
+ names = xmalloc ((sysinfo->number_of_syscalls + 1) * sizeof (char *));
+
+ for (i = 0;
+ VEC_iterate(syscall_desc_p, sysinfo->syscalls, i, sysdesc);
+ i++)
+ names[i] = xstrdup (sysdesc->name);
+
+ names[i] = NULL;
+
+ return names;
+}
+
+#endif /* HAVE_LIBEXPAT */
diff --git a/gdb/xml-syscall.h b/gdb/xml-syscall.h
new file mode 100644
index 0000000..ff11f20
--- /dev/null
+++ b/gdb/xml-syscall.h
@@ -0,0 +1,64 @@
+/* Functions that provide the mechanism to parse a syscall XML file
+ and get its values.
+
+ Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
+ 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007, 2008
+ 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 . */
+
+#ifndef XML_SYSCALL_H
+#define XML_SYSCALL_H 1
+
+/* Structure that stores information about the system's
+ syscalls. */
+
+struct syscalls_info;
+
+
+/* Function responsible for initializing the information
+ about the syscalls. It reads the XML file and fills the
+ struct syscalls_info with the values.
+
+ Returns the struct syscalls_info if the file is valid, NULL otherwise. */
+
+const struct syscalls_info *xml_init_syscalls_info (const char *);
+
+/* Function that retrieves the syscall number corresponding to the given
+ name.
+
+ Returns the syscall number if found, or otherwise. */
+
+int xml_get_syscall_number (const struct syscalls_info *, const char *);
+
+/* Function that retrieves the syscall name corresponding to the given
+ number.
+
+ Returns the syscall name if found, NULL otherwise. */
+const char *xml_get_syscall_name (const struct syscalls_info *, int);
+
+/* Function that returns the number of syscalls defined in the system.
+
+ Returns the number of syscalls, or zero otherwise. */
+int xml_number_of_syscalls (const struct syscalls_info *);
+
+/* Function used to retrieve the list of syscalls in the system. This list
+ is returned as an array of strings.
+
+ Returns the list of syscalls in the system, or NULL otherwise. */
+const char **xml_list_of_syscalls (const struct syscalls_info *sysinfo);
+
+#endif /* XML_SYSCALL_H */