Add scripts directory

Move build and user scripts into scripts directory.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>

9 files changed, 1562 insertions, 0 deletions

diff --git a/scripts/create_config b/scripts/create_config
new file mode 100755
index 0000000..0098e68
--- /dev/null
+++ b/scripts/create_config
@@ -0,0 +1,103 @@
+#!/bin/sh
+
+echo "/* Automatically generated by create_config - do not modify */"
+
+while read line; do
+
+case $line in
+ VERSION=*) # configuration
+    version=${line#*=}
+    echo "#define QEMU_VERSION \"$version\""
+    ;;
+ PKGVERSION=*) # configuration
+    pkgversion=${line#*=}
+    echo "#define QEMU_PKGVERSION \"$pkgversion\""
+    ;;
+ prefix=* | [a-z]*dir=*) # directory configuration
+    name=${line%=*}
+    value=${line#*=}
+    define_name=`echo $name | tr '[:lower:]' '[:upper:]'`
+    eval "define_value=\"$value\""
+    echo "#define CONFIG_QEMU_$define_name \"$define_value\""
+    # save for the next definitions
+    eval "$name=\$define_value"
+    ;;
+ CONFIG_AUDIO_DRIVERS=*)
+    drivers=${line#*=}
+    echo "#define CONFIG_AUDIO_DRIVERS \\"
+    for drv in $drivers; do
+      echo "    &${drv}_audio_driver,\\"
+    done
+    echo ""
+    ;;
+ CONFIG_BDRV_WHITELIST=*)
+    echo "#define CONFIG_BDRV_WHITELIST \\"
+    for drv in ${line#*=}; do
+      echo "    \"${drv}\",\\"
+    done
+    echo "    NULL"
+    ;;
+ CONFIG_*=y) # configuration
+    name=${line%=*}
+    echo "#define $name 1"
+    ;;
+ CONFIG_*=*) # configuration
+    name=${line%=*}
+    value=${line#*=}
+    echo "#define $name $value"
+    ;;
+ ARCH=*) # configuration
+    arch=${line#*=}
+    arch_name=`echo $arch | tr '[:lower:]' '[:upper:]'`
+    echo "#define HOST_$arch_name 1"
+    ;;
+ HOST_USB=*)
+    # do nothing
+    ;;
+ HOST_CC=*)
+    # do nothing
+    ;;
+ HOST_*=y) # configuration
+    name=${line%=*}
+    echo "#define $name 1"
+    ;;
+ HOST_*=*) # configuration
+    name=${line%=*}
+    value=${line#*=}
+    echo "#define $name $value"
+    ;;
+ TARGET_ARCH=*) # configuration
+    target_arch=${line#*=}
+    echo "#define TARGET_ARCH \"$target_arch\""
+    ;;
+ TARGET_BASE_ARCH=*) # configuration
+    target_base_arch=${line#*=}
+    if [ "$target_base_arch" != "$target_arch" ]; then
+      base_arch_name=`echo $target_base_arch | tr '[:lower:]' '[:upper:]'`
+      echo "#define TARGET_$base_arch_name 1"
+    fi
+    ;;
+ TARGET_XML_FILES=*)
+    # do nothing
+    ;;
+ TARGET_ABI_DIR=*)
+    # do nothing
+    ;;
+ TARGET_ARCH2=*)
+    # do nothing
+    ;;
+ TARGET_DIRS=*)
+    # do nothing
+    ;;
+ TARGET_*=y) # configuration
+    name=${line%=*}
+    echo "#define $name 1"
+    ;;
+ TARGET_*=*) # configuration
+    name=${line%=*}
+    value=${line#*=}
+    echo "#define $name $value"
+    ;;
+esac
+
+done # read
diff --git a/scripts/feature_to_c.sh b/scripts/feature_to_c.sh
new file mode 100644
index 0000000..0994d95
--- /dev/null
+++ b/scripts/feature_to_c.sh
@@ -0,0 +1,75 @@
+#!/bin/sh
+
+# Convert text files to compilable C arrays.
+#
+# Copyright (C) 2007 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 2 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/>.
+
+output=$1
+shift
+
+if test -z "$output" || test -z "$1"; then
+  echo "Usage: $0 OUTPUTFILE INPUTFILE..."
+  exit 1
+fi
+
+if test -e "$output"; then
+  echo "Output file \"$output\" already exists; refusing to overwrite."
+  exit 1
+fi
+
+for input; do
+  arrayname=xml_feature_`echo $input | sed 's,.*/,,; s/[-.]/_/g'`
+
+  ${AWK:-awk} 'BEGIN { n = 0
+      print "static const char '$arrayname'[] = {"
+      for (i = 0; i < 255; i++)
+        _ord_[sprintf("%c", i)] = i
+    } {
+      split($0, line, "");
+      printf "  "
+      for (i = 1; i <= length($0); i++) {
+        c = line[i]
+        if (c == "'\''") {
+          printf "'\''\\'\'''\'', "
+        } else if (c == "\\") {
+          printf "'\''\\\\'\'', "
+        } else if (_ord_[c] >= 32 && _ord_[c] < 127) {
+	  printf "'\''%s'\'', ", c
+        } else {
+          printf "'\''\\%03o'\'', ", _ord_[c]
+        }
+        if (i % 10 == 0)
+          printf "\n   "
+      }
+      printf "'\''\\n'\'', \n"
+    } END {
+      print "  0 };"
+    }' < $input >> $output
+done
+
+echo >> $output
+echo "const char *const xml_builtin[][2] = {" >> $output
+
+for input; do
+  basename=`echo $input | sed 's,.*/,,'`
+  arrayname=xml_feature_`echo $input | sed 's,.*/,,; s/[-.]/_/g'`
+  echo "  { \"$basename\", $arrayname }," >> $output
+done
+
+echo "  { (char *)0, (char *)0 }" >> $output
+echo "};" >> $output
diff --git a/scripts/hxtool b/scripts/hxtool
new file mode 100644
index 0000000..7ca83ed
--- /dev/null
+++ b/scripts/hxtool
@@ -0,0 +1,102 @@
+#!/bin/sh
+
+hxtoh()
+{
+    flag=1
+    while read -r str; do
+        case $str in
+            HXCOMM*)
+            ;;
+            STEXI*|ETEXI*|SQMP*|EQMP*) flag=$(($flag^1))
+            ;;
+            *)
+            test $flag -eq 1 && printf "%s\n" "$str"
+            ;;
+        esac
+    done
+}
+
+hxtotexi()
+{
+    flag=0
+    line=1
+    while read -r str; do
+        case "$str" in
+            HXCOMM*)
+            ;;
+            STEXI*)
+            if test $flag -eq 1 ; then
+                echo "line $line: syntax error: expected ETEXI, found $str" >&2
+                exit 1
+            fi
+            flag=1
+            ;;
+            ETEXI*)
+            if test $flag -ne 1 ; then
+                echo "line $line: syntax error: expected STEXI, found $str" >&2
+                exit 1
+            fi
+            flag=0
+            ;;
+            SQMP*|EQMP*)
+            if test $flag -eq 1 ; then
+                echo "line $line: syntax error: expected ETEXI, found $str" >&2
+                exit 1
+            fi
+            ;;
+            DEFHEADING*)
+            echo "$(expr "$str" : "DEFHEADING(\(.*\))")"
+            ;;
+            *)
+            test $flag -eq 1 && echo "$str"
+            ;;
+        esac
+        line=$((line+1))
+    done
+}
+
+hxtoqmp()
+{
+    IFS=
+    flag=0
+    line=1
+    while read -r str; do
+        case "$str" in
+            HXCOMM*)
+            ;;
+            SQMP*)
+            if test $flag -eq 1 ; then
+                echo "line $line: syntax error: expected EQMP, found $str" >&2
+                exit 1
+            fi
+            flag=1
+            ;;
+            EQMP*)
+            if test $flag -ne 1 ; then
+                echo "line $line: syntax error: expected SQMP, found $str" >&2
+                exit 1
+            fi
+            flag=0
+            ;;
+            STEXI*|ETEXI*)
+            if test $flag -eq 1 ; then
+                echo "line $line: syntax error: expected EQMP, found $str" >&2
+                exit 1
+            fi
+            ;;
+            *)
+            test $flag -eq 1 && echo "$str"
+            ;;
+        esac
+        line=$((line+1))
+    done
+}
+
+case "$1" in
+"-h") hxtoh ;;
+"-t") hxtotexi ;;
+"-q") hxtoqmp ;;
+*) exit 1 ;;
+esac
+
+exit 0
diff --git a/scripts/make_device_config.sh b/scripts/make_device_config.sh
new file mode 100644
index 0000000..5d14885
--- /dev/null
+++ b/scripts/make_device_config.sh
@@ -0,0 +1,28 @@
+#! /bin/sh
+# Construct a target device config file from a default, pulling in any
+# files from include directives.
+
+dest=$1.tmp
+dep=$1.d
+src=$2
+src_dir=`dirname $src`
+all_includes=
+
+process_includes () {
+  cat $1 | grep '^include' | \
+  while read include file ; do
+    all_includes="$all_includes $src_dir/$file"
+    process_includes $src_dir/$file
+  done
+}
+
+f=$src
+while [ -n "$f" ] ; do
+  f=`tr -d '\r' < $f | awk '/^include / {printf "'$src_dir'/%s", $2}'`
+  [ $? = 0 ] || exit 1
+  all_includes="$all_includes $f"
+done
+process_includes $src > $dest
+
+cat $src $all_includes | grep -v '^include' > $dest
+echo "$1: $all_includes" > $dep
diff --git a/scripts/qemu-binfmt-conf.sh b/scripts/qemu-binfmt-conf.sh
new file mode 100644
index 0000000..c50beb7
--- /dev/null
+++ b/scripts/qemu-binfmt-conf.sh
@@ -0,0 +1,66 @@
+#!/bin/sh
+# enable automatic i386/ARM/M68K/MIPS/SPARC/PPC program execution by the kernel
+
+# load the binfmt_misc module
+if [ ! -d /proc/sys/fs/binfmt_misc ]; then
+  /sbin/modprobe binfmt_misc
+fi
+if [ ! -f /proc/sys/fs/binfmt_misc/register ]; then
+  mount binfmt_misc -t binfmt_misc /proc/sys/fs/binfmt_misc
+fi
+
+# probe cpu type
+cpu=`uname -m`
+case "$cpu" in
+  i386|i486|i586|i686|i86pc|BePC|x86_64)
+    cpu="i386"
+  ;;
+  m68k)
+    cpu="m68k"
+  ;;
+  mips*)
+    cpu="mips"
+  ;;
+  "Power Macintosh"|ppc|ppc64)
+    cpu="ppc"
+  ;;
+  armv[4-9]*)
+    cpu="arm"
+  ;;
+esac
+
+# register the interpreter for each cpu except for the native one
+if [ $cpu != "i386" ] ; then
+    echo ':i386:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x03\x00:\xff\xff\xff\xff\xff\xfe\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/local/bin/qemu-i386:' > /proc/sys/fs/binfmt_misc/register
+    echo ':i486:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x06\x00:\xff\xff\xff\xff\xff\xfe\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/local/bin/qemu-i386:' > /proc/sys/fs/binfmt_misc/register
+fi
+if [ $cpu != "alpha" ] ; then
+    echo ':alpha:M::\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x26\x90:\xff\xff\xff\xff\xff\xfe\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/local/bin/qemu-alpha:' > /proc/sys/fs/binfmt_misc/register
+fi
+if [ $cpu != "arm" ] ; then
+    echo   ':arm:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/local/bin/qemu-arm:' > /proc/sys/fs/binfmt_misc/register
+    echo   ':armeb:M::\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-armeb:' > /proc/sys/fs/binfmt_misc/register
+fi
+if [ $cpu != "sparc" ] ; then
+    echo   ':sparc:M::\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x02:\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-sparc:' > /proc/sys/fs/binfmt_misc/register
+fi
+if [ $cpu != "ppc" ] ; then
+    echo   ':ppc:M::\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x14:\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-ppc:' > /proc/sys/fs/binfmt_misc/register
+fi
+if [ $cpu != "m68k" ] ; then
+    echo   'Please check cpu value and header information for m68k!'
+    echo   ':m68k:M::\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x04:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-m68k:' > /proc/sys/fs/binfmt_misc/register
+fi
+if [ $cpu != "mips" ] ; then
+    # FIXME: We could use the other endianness on a MIPS host.
+    echo   ':mips:M::\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-mips:' > /proc/sys/fs/binfmt_misc/register
+    echo   ':mipsel:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/local/bin/qemu-mipsel:' > /proc/sys/fs/binfmt_misc/register
+    echo   ':mipsn32:M::\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-mipsn32:' > /proc/sys/fs/binfmt_misc/register
+    echo   ':mipsn32el:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/local/bin/qemu-mipsn32el:' > /proc/sys/fs/binfmt_misc/register
+    echo   ':mips64:M::\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-mips64:' > /proc/sys/fs/binfmt_misc/register
+    echo   ':mips64el:M::\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x08\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/local/bin/qemu-mips64el:' > /proc/sys/fs/binfmt_misc/register
+fi
+if [ $cpu != "sh" ] ; then
+    echo    ':sh4:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x2a\x00:\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/local/bin/qemu-sh4:' > /proc/sys/fs/binfmt_misc/register
+    echo    ':sh4eb:M::\x7fELF\x01\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x2a:\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff:/usr/local/bin/qemu-sh4eb:' > /proc/sys/fs/binfmt_misc/register
+fi
diff --git a/scripts/signrom.sh b/scripts/signrom.sh
new file mode 100755
index 0000000..9dc5c63
--- /dev/null
+++ b/scripts/signrom.sh
@@ -0,0 +1,45 @@
+#!/bin/sh
+
+# Option ROM Signing utility
+#
+# 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 2 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/>.
+#
+# Copyright Novell Inc, 2009
+#   Authors: Alexander Graf <agraf@suse.de>
+#
+# Syntax: signrom.sh <input> <output>
+
+# did we get proper arguments?
+test "$1" -a "$2" || exit 1
+
+sum=0
+
+# find out the file size
+x=`dd if="$1" bs=1 count=1 skip=2 2>/dev/null | od -t u1 -A n`
+#size=`expr $x \* 512 - 1`
+size=$(( $x * 512 - 1 ))
+
+# now get the checksum
+nums=`od -A n -t u1 -v -N $size "$1"`
+for i in ${nums}; do
+    # add each byte's value to sum
+    sum=`expr \( $sum + $i \) % 256`
+done
+
+sum=$(( (256 - $sum) % 256 ))
+sum_octal=$( printf "%o" $sum )
+
+# and write the output file
+cp "$1" "$2"
+printf "\\$sum_octal" | dd of="$2" bs=1 count=1 seek=$size conv=notrunc 2>/dev/null
diff --git a/scripts/simpletrace.py b/scripts/simpletrace.py
new file mode 100755
index 0000000..553a727
--- /dev/null
+++ b/scripts/simpletrace.py
@@ -0,0 +1,93 @@
+#!/usr/bin/env python
+#
+# Pretty-printer for simple trace backend binary trace files
+#
+# Copyright IBM, Corp. 2010
+#
+# This work is licensed under the terms of the GNU GPL, version 2.  See
+# the COPYING file in the top-level directory.
+#
+# For help see docs/tracing.txt
+
+import sys
+import struct
+import re
+
+header_event_id = 0xffffffffffffffff
+header_magic    = 0xf2b177cb0aa429b4
+header_version  = 0
+
+trace_fmt = '=QQQQQQQQ'
+trace_len = struct.calcsize(trace_fmt)
+event_re  = re.compile(r'(disable\s+)?([a-zA-Z0-9_]+)\(([^)]*)\).*')
+
+def err(msg):
+    sys.stderr.write(msg + '\n')
+    sys.exit(1)
+
+def parse_events(fobj):
+    """Parse a trace-events file."""
+
+    def get_argnames(args):
+        """Extract argument names from a parameter list."""
+        return tuple(arg.split()[-1].lstrip('*') for arg in args.split(','))
+
+    events = {}
+    event_num = 0
+    for line in fobj:
+        m = event_re.match(line.strip())
+        if m is None:
+            continue
+
+        disable, name, args = m.groups()
+        events[event_num] = (name,) + get_argnames(args)
+        event_num += 1
+    return events
+
+def read_record(fobj):
+    """Deserialize a trace record from a file."""
+    s = fobj.read(trace_len)
+    if len(s) != trace_len:
+        return None
+    return struct.unpack(trace_fmt, s)
+
+def read_trace_file(fobj):
+    """Deserialize trace records from a file."""
+    header = read_record(fobj)
+    if header is None or \
+       header[0] != header_event_id or \
+       header[1] != header_magic or \
+       header[2] != header_version:
+        err('not a trace file or incompatible version')
+
+    while True:
+        rec = read_record(fobj)
+        if rec is None:
+            break
+
+        yield rec
+
+class Formatter(object):
+    def __init__(self, events):
+        self.events = events
+        self.last_timestamp = None
+
+    def format_record(self, rec):
+        if self.last_timestamp is None:
+            self.last_timestamp = rec[1]
+        delta_ns = rec[1] - self.last_timestamp
+        self.last_timestamp = rec[1]
+
+        event = self.events[rec[0]]
+        fields = [event[0], '%0.3f' % (delta_ns / 1000.0)]
+        for i in xrange(1, len(event)):
+            fields.append('%s=0x%x' % (event[i], rec[i + 1]))
+        return ' '.join(fields)
+
+if len(sys.argv) != 3:
+    err('usage: %s <trace-events> <trace-file>' % sys.argv[0])
+
+events = parse_events(open(sys.argv[1], 'r'))
+formatter = Formatter(events)
+for rec in read_trace_file(open(sys.argv[2], 'rb')):
+    print formatter.format_record(rec)
diff --git a/scripts/texi2pod.pl b/scripts/texi2pod.pl
new file mode 100755
index 0000000..9ed056a
--- /dev/null
+++ b/scripts/texi2pod.pl
@@ -0,0 +1,477 @@
+#! /usr/bin/perl -w
+
+#   Copyright (C) 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
+
+# This file is part of GCC.
+
+# GCC 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 2, or (at your option)
+# any later version.
+
+# GCC 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 GCC; see the file COPYING.  If not,
+# see <http://www.gnu.org/licenses/>.
+
+# This does trivial (and I mean _trivial_) conversion of Texinfo
+# markup to Perl POD format.  It's intended to be used to extract
+# something suitable for a manpage from a Texinfo document.
+
+$output = 0;
+$skipping = 0;
+%sects = ();
+$section = "";
+@icstack = ();
+@endwstack = ();
+@skstack = ();
+@instack = ();
+$shift = "";
+%defs = ();
+$fnno = 1;
+$inf = "";
+$ibase = "";
+@ipath = ();
+
+while ($_ = shift) {
+    if (/^-D(.*)$/) {
+	if ($1 ne "") {
+	    $flag = $1;
+	} else {
+	    $flag = shift;
+	}
+	$value = "";
+	($flag, $value) = ($flag =~ /^([^=]+)(?:=(.+))?/);
+	die "no flag specified for -D\n"
+	    unless $flag ne "";
+	die "flags may only contain letters, digits, hyphens, dashes and underscores\n"
+	    unless $flag =~ /^[a-zA-Z0-9_-]+$/;
+	$defs{$flag} = $value;
+    } elsif (/^-I(.*)$/) {
+	if ($1 ne "") {
+	    $flag = $1;
+	} else {
+	    $flag = shift;
+	}
+        push (@ipath, $flag);
+    } elsif (/^-/) {
+	usage();
+    } else {
+	$in = $_, next unless defined $in;
+	$out = $_, next unless defined $out;
+	usage();
+    }
+}
+
+if (defined $in) {
+    $inf = gensym();
+    open($inf, "<$in") or die "opening \"$in\": $!\n";
+    $ibase = $1 if $in =~ m|^(.+)/[^/]+$|;
+} else {
+    $inf = \*STDIN;
+}
+
+if (defined $out) {
+    open(STDOUT, ">$out") or die "opening \"$out\": $!\n";
+}
+
+while(defined $inf) {
+while(<$inf>) {
+    # Certain commands are discarded without further processing.
+    /^\@(?:
+	 [a-z]+index		# @*index: useful only in complete manual
+	 |need			# @need: useful only in printed manual
+	 |(?:end\s+)?group	# @group .. @end group: ditto
+	 |page			# @page: ditto
+	 |node			# @node: useful only in .info file
+	 |(?:end\s+)?ifnottex   # @ifnottex .. @end ifnottex: use contents
+	)\b/x and next;
+
+    chomp;
+
+    # Look for filename and title markers.
+    /^\@setfilename\s+([^.]+)/ and $fn = $1, next;
+    /^\@settitle\s+([^.]+)/ and $tl = postprocess($1), next;
+
+    # Identify a man title but keep only the one we are interested in.
+    /^\@c\s+man\s+title\s+([A-Za-z0-9-]+)\s+(.+)/ and do {
+	if (exists $defs{$1}) {
+	    $fn = $1;
+	    $tl = postprocess($2);
+	}
+	next;
+    };
+
+    # Look for blocks surrounded by @c man begin SECTION ... @c man end.
+    # This really oughta be @ifman ... @end ifman and the like, but such
+    # would require rev'ing all other Texinfo translators.
+    /^\@c\s+man\s+begin\s+([A-Z]+)\s+([A-Za-z0-9-]+)/ and do {
+	$output = 1 if exists $defs{$2};
+        $sect = $1;
+	next;
+    };
+    /^\@c\s+man\s+begin\s+([A-Z]+)/ and $sect = $1, $output = 1, next;
+    /^\@c\s+man\s+end/ and do {
+	$sects{$sect} = "" unless exists $sects{$sect};
+	$sects{$sect} .= postprocess($section);
+	$section = "";
+	$output = 0;
+	next;
+    };
+
+    # handle variables
+    /^\@set\s+([a-zA-Z0-9_-]+)\s*(.*)$/ and do {
+	$defs{$1} = $2;
+	next;
+    };
+    /^\@clear\s+([a-zA-Z0-9_-]+)/ and do {
+	delete $defs{$1};
+	next;
+    };
+
+    next unless $output;
+
+    # Discard comments.  (Can't do it above, because then we'd never see
+    # @c man lines.)
+    /^\@c\b/ and next;
+
+    # End-block handler goes up here because it needs to operate even
+    # if we are skipping.
+    /^\@end\s+([a-z]+)/ and do {
+	# Ignore @end foo, where foo is not an operation which may
+	# cause us to skip, if we are presently skipping.
+	my $ended = $1;
+	next if $skipping && $ended !~ /^(?:ifset|ifclear|ignore|menu|iftex|copying)$/;
+
+	die "\@end $ended without \@$ended at line $.\n" unless defined $endw;
+	die "\@$endw ended by \@end $ended at line $.\n" unless $ended eq $endw;
+
+	$endw = pop @endwstack;
+
+	if ($ended =~ /^(?:ifset|ifclear|ignore|menu|iftex)$/) {
+	    $skipping = pop @skstack;
+	    next;
+	} elsif ($ended =~ /^(?:example|smallexample|display)$/) {
+	    $shift = "";
+	    $_ = "";	# need a paragraph break
+	} elsif ($ended =~ /^(?:itemize|enumerate|[fv]?table)$/) {
+	    $_ = "\n=back\n";
+	    $ic = pop @icstack;
+	} elsif ($ended eq "multitable") {
+	    $_ = "\n=back\n";
+	} else {
+	    die "unknown command \@end $ended at line $.\n";
+	}
+    };
+
+    # We must handle commands which can cause skipping even while we
+    # are skipping, otherwise we will not process nested conditionals
+    # correctly.
+    /^\@ifset\s+([a-zA-Z0-9_-]+)/ and do {
+	push @endwstack, $endw;
+	push @skstack, $skipping;
+	$endw = "ifset";
+	$skipping = 1 unless exists $defs{$1};
+	next;
+    };
+
+    /^\@ifclear\s+([a-zA-Z0-9_-]+)/ and do {
+	push @endwstack, $endw;
+	push @skstack, $skipping;
+	$endw = "ifclear";
+	$skipping = 1 if exists $defs{$1};
+	next;
+    };
+
+    /^\@(ignore|menu|iftex|copying)\b/ and do {
+	push @endwstack, $endw;
+	push @skstack, $skipping;
+	$endw = $1;
+	$skipping = 1;
+	next;
+    };
+
+    next if $skipping;
+
+    # Character entities.  First the ones that can be replaced by raw text
+    # or discarded outright:
+    s/\@copyright\{\}/(c)/g;
+    s/\@dots\{\}/.../g;
+    s/\@enddots\{\}/..../g;
+    s/\@([.!? ])/$1/g;
+    s/\@[:-]//g;
+    s/\@bullet(?:\{\})?/*/g;
+    s/\@TeX\{\}/TeX/g;
+    s/\@pounds\{\}/\#/g;
+    s/\@minus(?:\{\})?/-/g;
+    s/\\,/,/g;
+
+    # Now the ones that have to be replaced by special escapes
+    # (which will be turned back into text by unmunge())
+    s/&/&amp;/g;
+    s/\@\{/&lbrace;/g;
+    s/\@\}/&rbrace;/g;
+    s/\@\@/&at;/g;
+
+    # Inside a verbatim block, handle @var specially.
+    if ($shift ne "") {
+	s/\@var\{([^\}]*)\}/<$1>/g;
+    }
+
+    # POD doesn't interpret E<> inside a verbatim block.
+    if ($shift eq "") {
+	s/</&lt;/g;
+	s/>/&gt;/g;
+    } else {
+	s/</&LT;/g;
+	s/>/&GT;/g;
+    }
+
+    # Single line command handlers.
+
+    /^\@include\s+(.+)$/ and do {
+	push @instack, $inf;
+	$inf = gensym();
+	$file = postprocess($1);
+
+	# Try cwd and $ibase, then explicit -I paths.
+	$done = 0;
+	foreach $path ("", $ibase, @ipath) {
+	    $mypath = $file;
+	    $mypath = $path . "/" . $mypath if ($path ne "");
+	    open($inf, "<" . $mypath) and ($done = 1, last);
+	}
+	die "cannot find $file" if !$done;
+	next;
+    };
+
+    /^\@(?:section|unnumbered|unnumberedsec|center)\s+(.+)$/
+	and $_ = "\n=head2 $1\n";
+    /^\@subsection\s+(.+)$/
+	and $_ = "\n=head3 $1\n";
+    /^\@subsubsection\s+(.+)$/
+	and $_ = "\n=head4 $1\n";
+
+    # Block command handlers:
+    /^\@itemize(?:\s+(\@[a-z]+|\*|-))?/ and do {
+	push @endwstack, $endw;
+	push @icstack, $ic;
+	if (defined $1) {
+	    $ic = $1;
+	} else {
+	    $ic = '*';
+	}
+	$_ = "\n=over 4\n";
+	$endw = "itemize";
+    };
+
+    /^\@enumerate(?:\s+([a-zA-Z0-9]+))?/ and do {
+	push @endwstack, $endw;
+	push @icstack, $ic;
+	if (defined $1) {
+	    $ic = $1 . ".";
+	} else {
+	    $ic = "1.";
+	}
+	$_ = "\n=over 4\n";
+	$endw = "enumerate";
+    };
+
+    /^\@multitable\s.*/ and do {
+	push @endwstack, $endw;
+	$endw = "multitable";
+	$_ = "\n=over 4\n";
+    };
+
+    /^\@([fv]?table)\s+(\@[a-z]+)/ and do {
+	push @endwstack, $endw;
+	push @icstack, $ic;
+	$endw = $1;
+	$ic = $2;
+	$ic =~ s/\@(?:samp|strong|key|gcctabopt|option|env)/B/;
+	$ic =~ s/\@(?:code|kbd)/C/;
+	$ic =~ s/\@(?:dfn|var|emph|cite|i)/I/;
+	$ic =~ s/\@(?:file)/F/;
+	$_ = "\n=over 4\n";
+    };
+
+    /^\@((?:small)?example|display)/ and do {
+	push @endwstack, $endw;
+	$endw = $1;
+	$shift = "\t";
+	$_ = "";	# need a paragraph break
+    };
+
+    /^\@item\s+(.*\S)\s*$/ and $endw eq "multitable" and do {
+	@columns = ();
+	for $column (split (/\s*\@tab\s*/, $1)) {
+	    # @strong{...} is used a @headitem work-alike
+	    $column =~ s/^\@strong{(.*)}$/$1/;
+	    push @columns, $column;
+	}
+	$_ = "\n=item ".join (" : ", @columns)."\n";
+    };
+
+    /^\@itemx?\s*(.+)?$/ and do {
+	if (defined $1) {
+	    # Entity escapes prevent munging by the <> processing below.
+	    $_ = "\n=item $ic\&LT;$1\&GT;\n";
+	} else {
+	    $_ = "\n=item $ic\n";
+	    $ic =~ y/A-Ya-y/B-Zb-z/;
+	    $ic =~ s/(\d+)/$1 + 1/eg;
+	}
+    };
+
+    $section .= $shift.$_."\n";
+}
+# End of current file.
+close($inf);
+$inf = pop @instack;
+}
+
+die "No filename or title\n" unless defined $fn && defined $tl;
+
+$sects{NAME} = "$fn \- $tl\n";
+$sects{FOOTNOTES} .= "=back\n" if exists $sects{FOOTNOTES};
+
+for $sect (qw(NAME SYNOPSIS DESCRIPTION OPTIONS ENVIRONMENT FILES
+	      BUGS NOTES FOOTNOTES SEEALSO AUTHOR COPYRIGHT)) {
+    if(exists $sects{$sect}) {
+	$head = $sect;
+	$head =~ s/SEEALSO/SEE ALSO/;
+	print "=head1 $head\n\n";
+	print scalar unmunge ($sects{$sect});
+	print "\n";
+    }
+}
+
+sub usage
+{
+    die "usage: $0 [-D toggle...] [infile [outfile]]\n";
+}
+
+sub postprocess
+{
+    local $_ = $_[0];
+
+    # @value{foo} is replaced by whatever 'foo' is defined as.
+    while (m/(\@value\{([a-zA-Z0-9_-]+)\})/g) {
+	if (! exists $defs{$2}) {
+	    print STDERR "Option $2 not defined\n";
+	    s/\Q$1\E//;
+	} else {
+	    $value = $defs{$2};
+	    s/\Q$1\E/$value/;
+	}
+    }
+
+    # Formatting commands.
+    # Temporary escape for @r.
+    s/\@r\{([^\}]*)\}/R<$1>/g;
+    s/\@(?:dfn|var|emph|cite|i)\{([^\}]*)\}/I<$1>/g;
+    s/\@(?:code|kbd)\{([^\}]*)\}/C<$1>/g;
+    s/\@(?:gccoptlist|samp|strong|key|option|env|command|b)\{([^\}]*)\}/B<$1>/g;
+    s/\@sc\{([^\}]*)\}/\U$1/g;
+    s/\@file\{([^\}]*)\}/F<$1>/g;
+    s/\@w\{([^\}]*)\}/S<$1>/g;
+    s/\@(?:dmn|math)\{([^\}]*)\}/$1/g;
+
+    # keep references of the form @ref{...}, print them bold
+    s/\@(?:ref)\{([^\}]*)\}/B<$1>/g;
+
+    # Change double single quotes to double quotes.
+    s/''/"/g;
+    s/``/"/g;
+
+    # Cross references are thrown away, as are @noindent and @refill.
+    # (@noindent is impossible in .pod, and @refill is unnecessary.)
+    # @* is also impossible in .pod; we discard it and any newline that
+    # follows it.  Similarly, our macro @gol must be discarded.
+
+    s/\(?\@xref\{(?:[^\}]*)\}(?:[^.<]|(?:<[^<>]*>))*\.\)?//g;
+    s/\s+\(\@pxref\{(?:[^\}]*)\}\)//g;
+    s/;\s+\@pxref\{(?:[^\}]*)\}//g;
+    s/\@noindent\s*//g;
+    s/\@refill//g;
+    s/\@gol//g;
+    s/\@\*\s*\n?//g;
+
+    # Anchors are thrown away
+    s/\@anchor\{(?:[^\}]*)\}//g;
+
+    # @uref can take one, two, or three arguments, with different
+    # semantics each time.  @url and @email are just like @uref with
+    # one argument, for our purposes.
+    s/\@(?:uref|url|email)\{([^\},]*)\}/&lt;B<$1>&gt;/g;
+    s/\@uref\{([^\},]*),([^\},]*)\}/$2 (C<$1>)/g;
+    s/\@uref\{([^\},]*),([^\},]*),([^\},]*)\}/$3/g;
+
+    # Un-escape <> at this point.
+    s/&LT;/</g;
+    s/&GT;/>/g;
+
+    # Now un-nest all B<>, I<>, R<>.  Theoretically we could have
+    # indefinitely deep nesting; in practice, one level suffices.
+    1 while s/([BIR])<([^<>]*)([BIR])<([^<>]*)>/$1<$2>$3<$4>$1</g;
+
+    # Replace R<...> with bare ...; eliminate empty markup, B<>;
+    # shift white space at the ends of [BI]<...> expressions outside
+    # the expression.
+    s/R<([^<>]*)>/$1/g;
+    s/[BI]<>//g;
+    s/([BI])<(\s+)([^>]+)>/$2$1<$3>/g;
+    s/([BI])<([^>]+?)(\s+)>/$1<$2>$3/g;
+
+    # Extract footnotes.  This has to be done after all other
+    # processing because otherwise the regexp will choke on formatting
+    # inside @footnote.
+    while (/\@footnote/g) {
+	s/\@footnote\{([^\}]+)\}/[$fnno]/;
+	add_footnote($1, $fnno);
+	$fnno++;
+    }
+
+    return $_;
+}
+
+sub unmunge
+{
+    # Replace escaped symbols with their equivalents.
+    local $_ = $_[0];
+
+    s/&lt;/E<lt>/g;
+    s/&gt;/E<gt>/g;
+    s/&lbrace;/\{/g;
+    s/&rbrace;/\}/g;
+    s/&at;/\@/g;
+    s/&amp;/&/g;
+    return $_;
+}
+
+sub add_footnote
+{
+    unless (exists $sects{FOOTNOTES}) {
+	$sects{FOOTNOTES} = "\n=over 4\n\n";
+    }
+
+    $sects{FOOTNOTES} .= "=item $fnno.\n\n"; $fnno++;
+    $sects{FOOTNOTES} .= $_[0];
+    $sects{FOOTNOTES} .= "\n\n";
+}
+
+# stolen from Symbol.pm
+{
+    my $genseq = 0;
+    sub gensym
+    {
+	my $name = "GEN" . $genseq++;
+	my $ref = \*{$name};
+	delete $::{$name};
+	return $ref;
+    }
+}
diff --git a/scripts/tracetool b/scripts/tracetool
new file mode 100755
index 0000000..fce491c
--- /dev/null
+++ b/scripts/tracetool
@@ -0,0 +1,573 @@
+#!/bin/sh
+#
+# Code generator for trace events
+#
+# Copyright IBM, Corp. 2010
+#
+# This work is licensed under the terms of the GNU GPL, version 2.  See
+# the COPYING file in the top-level directory.
+
+# Disable pathname expansion, makes processing text with '*' characters simpler
+set -f
+
+usage()
+{
+    cat >&2 <<EOF
+usage: $0 [--nop | --simple | --ust] [-h | -c]
+Generate tracing code for a file on stdin.
+
+Backends:
+  --nop     Tracing disabled
+  --simple  Simple built-in backend
+  --ust     LTTng User Space Tracing backend
+  --dtrace  DTrace/SystemTAP backend
+
+Output formats:
+  -h     Generate .h file
+  -c     Generate .c file
+  -d     Generate .d file (DTrace only)
+  --stap Generate .stp file (DTrace with SystemTAP only)
+
+Options:
+  --binary      [path]  Full path to QEMU binary
+  --target-arch [arch]  QEMU emulator target arch
+  --target-type [type]  QEMU emulator target type ('system' or 'user')
+
+EOF
+    exit 1
+}
+
+# Get the name of a trace event
+get_name()
+{
+    echo ${1%%\(*}
+}
+
+# Get the argument list of a trace event, including types and names
+get_args()
+{
+    local args
+    args=${1#*\(}
+    args=${args%\)*}
+    echo "$args"
+}
+
+# Get the argument name list of a trace event
+get_argnames()
+{
+    local nfields field name sep
+    nfields=0
+    sep="$2"
+    for field in $(get_args "$1"); do
+        nfields=$((nfields + 1))
+
+        # Drop pointer star
+        field=${field#\*}
+
+        # Only argument names have commas at the end
+        name=${field%,}
+        test "$field" = "$name" && continue
+
+        printf "%s%s " $name $sep
+    done
+
+    # Last argument name
+    if [ "$nfields" -gt 1 ]
+    then
+        printf "%s" "$name"
+    fi
+}
+
+# Get the number of arguments to a trace event
+get_argc()
+{
+    local name argc
+    argc=0
+    for name in $(get_argnames "$1", ","); do
+        argc=$((argc + 1))
+    done
+    echo $argc
+}
+
+# Get the format string for a trace event
+get_fmt()
+{
+    local fmt
+    fmt=${1#*\"}
+    fmt=${fmt%\"*}
+    echo "$fmt"
+}
+
+# Get the state of a trace event
+get_state()
+{
+    local str disable state
+    str=$(get_name "$1")
+    disable=${str##disable }
+    if [ "$disable" = "$str" ] ; then
+        state=1
+    else
+        state=0
+    fi
+    echo "$state"
+}
+
+linetoh_begin_nop()
+{
+    return
+}
+
+linetoh_nop()
+{
+    local name args
+    name=$(get_name "$1")
+    args=$(get_args "$1")
+
+    # Define an empty function for the trace event
+    cat <<EOF
+static inline void trace_$name($args)
+{
+}
+EOF
+}
+
+linetoh_end_nop()
+{
+    return
+}
+
+linetoc_begin_nop()
+{
+    return
+}
+
+linetoc_nop()
+{
+    # No need for function definitions in nop backend
+    return
+}
+
+linetoc_end_nop()
+{
+    return
+}
+
+linetoh_begin_simple()
+{
+    cat <<EOF
+#include "simpletrace.h"
+EOF
+
+    simple_event_num=0
+}
+
+cast_args_to_uint64_t()
+{
+    local arg
+    for arg in $(get_argnames "$1", ","); do
+        printf "%s" "(uint64_t)(uintptr_t)$arg"
+    done
+}
+
+linetoh_simple()
+{
+    local name args argc trace_args state
+    name=$(get_name "$1")
+    args=$(get_args "$1")
+    argc=$(get_argc "$1")
+    state=$(get_state "$1")
+    if [ "$state" = "0" ]; then
+        name=${name##disable }
+    fi
+
+    trace_args="$simple_event_num"
+    if [ "$argc" -gt 0 ]
+    then
+        trace_args="$trace_args, $(cast_args_to_uint64_t "$1")"
+    fi
+
+    cat <<EOF
+static inline void trace_$name($args)
+{
+    trace$argc($trace_args);
+}
+EOF
+
+    simple_event_num=$((simple_event_num + 1))
+}
+
+linetoh_end_simple()
+{
+    cat <<EOF
+#define NR_TRACE_EVENTS $simple_event_num
+extern TraceEvent trace_list[NR_TRACE_EVENTS];
+EOF
+}
+
+linetoc_begin_simple()
+{
+    cat <<EOF
+#include "trace.h"
+
+TraceEvent trace_list[] = {
+EOF
+    simple_event_num=0
+
+}
+
+linetoc_simple()
+{
+    local name state
+    name=$(get_name "$1")
+    state=$(get_state "$1")
+    if [ "$state" = "0" ] ; then
+        name=${name##disable }
+    fi
+    cat <<EOF
+{.tp_name = "$name", .state=$state},
+EOF
+    simple_event_num=$((simple_event_num + 1))
+}
+
+linetoc_end_simple()
+{
+    cat <<EOF
+};
+EOF
+}
+
+# Clean up after UST headers which pollute the namespace
+ust_clean_namespace() {
+    cat <<EOF
+#undef mutex_lock
+#undef mutex_unlock
+#undef inline
+#undef wmb
+EOF
+}
+
+linetoh_begin_ust()
+{
+    echo "#include <ust/tracepoint.h>"
+    ust_clean_namespace
+}
+
+linetoh_ust()
+{
+    local name args argnames
+    name=$(get_name "$1")
+    args=$(get_args "$1")
+    argnames=$(get_argnames "$1", ",")
+
+    cat <<EOF
+DECLARE_TRACE(ust_$name, TP_PROTO($args), TP_ARGS($argnames));
+#define trace_$name trace_ust_$name
+EOF
+}
+
+linetoh_end_ust()
+{
+    return
+}
+
+linetoc_begin_ust()
+{
+    cat <<EOF
+#include <ust/marker.h>
+$(ust_clean_namespace)
+#include "trace.h"
+EOF
+}
+
+linetoc_ust()
+{
+    local name args argnames fmt
+    name=$(get_name "$1")
+    args=$(get_args "$1")
+    argnames=$(get_argnames "$1", ",")
+    fmt=$(get_fmt "$1")
+
+    cat <<EOF
+DEFINE_TRACE(ust_$name);
+
+static void ust_${name}_probe($args)
+{
+    trace_mark(ust, $name, "$fmt", $argnames);
+}
+EOF
+
+    # Collect names for later
+    names="$names $name"
+}
+
+linetoc_end_ust()
+{
+    cat <<EOF
+static void __attribute__((constructor)) trace_init(void)
+{
+EOF
+
+    for name in $names; do
+        cat <<EOF
+    register_trace_ust_$name(ust_${name}_probe);
+EOF
+    done
+
+    echo "}"
+}
+
+linetoh_begin_dtrace()
+{
+    cat <<EOF
+#include "trace-dtrace.h"
+EOF
+}
+
+linetoh_dtrace()
+{
+    local name args argnames state nameupper
+    name=$(get_name "$1")
+    args=$(get_args "$1")
+    argnames=$(get_argnames "$1", ",")
+    state=$(get_state "$1")
+    if [ "$state" = "0" ] ; then
+        name=${name##disable }
+    fi
+
+    nameupper=`echo $name | tr '[:lower:]' '[:upper:]'`
+
+    # Define an empty function for the trace event
+    cat <<EOF
+static inline void trace_$name($args) {
+    if (QEMU_${nameupper}_ENABLED()) {
+        QEMU_${nameupper}($argnames);
+    }
+}
+EOF
+}
+
+linetoh_end_dtrace()
+{
+    return
+}
+
+linetoc_begin_dtrace()
+{
+    return
+}
+
+linetoc_dtrace()
+{
+    # No need for function definitions in dtrace backend
+    return
+}
+
+linetoc_end_dtrace()
+{
+    return
+}
+
+linetod_begin_dtrace()
+{
+    cat <<EOF
+provider qemu {
+EOF
+}
+
+linetod_dtrace()
+{
+    local name args state
+    name=$(get_name "$1")
+    args=$(get_args "$1")
+    state=$(get_state "$1")
+    if [ "$state" = "0" ] ; then
+        name=${name##disable }
+    fi
+
+    # DTrace provider syntax expects foo() for empty
+    # params, not foo(void)
+    if [ "$args" = "void" ]; then
+       args=""
+    fi
+
+    # Define prototype for probe arguments
+    cat <<EOF
+        probe $name($args);
+EOF
+}
+
+linetod_end_dtrace()
+{
+    cat <<EOF
+};
+EOF
+}
+
+linetostap_begin_dtrace()
+{
+    return
+}
+
+linetostap_dtrace()
+{
+    local i arg name args arglist state
+    name=$(get_name "$1")
+    args=$(get_args "$1")
+    arglist=$(get_argnames "$1", "")
+    state=$(get_state "$1")
+    if [ "$state" = "0" ] ; then
+        name=${name##disable }
+    fi
+
+    # Define prototype for probe arguments
+    cat <<EOF
+probe qemu.$targettype.$targetarch.$name = process("$binary").mark("$name")
+{
+EOF
+
+    i=1
+    for arg in $arglist
+    do
+        # 'limit' is a reserved keyword
+        if [ "$arg" = "limit" ]; then
+          arg="_limit"
+        fi
+        cat <<EOF
+  $arg = \$arg$i;
+EOF
+	i="$((i+1))"
+    done
+
+    cat <<EOF
+}
+EOF
+}
+
+linetostap_end_dtrace()
+{
+    return
+}
+
+# Process stdin by calling begin, line, and end functions for the backend
+convert()
+{
+    local begin process_line end str disable
+    begin="lineto$1_begin_$backend"
+    process_line="lineto$1_$backend"
+    end="lineto$1_end_$backend"
+
+    "$begin"
+
+    while read -r str; do
+        # Skip comments and empty lines
+        test -z "${str%%#*}" && continue
+
+        # Process the line.  The nop backend handles disabled lines.
+        disable=${str%%disable *}
+        echo
+        if test -z "$disable"; then
+            # Pass the disabled state as an arg for the simple
+            # or DTrace backends which handle it dynamically.
+            # For all other backends, call lineto$1_nop()
+            if [ $backend = "simple" -o "$backend" = "dtrace" ]; then
+                "$process_line" "$str"
+            else
+                "lineto$1_nop" "${str##disable }"
+            fi
+        else
+            "$process_line" "$str"
+        fi
+    done
+
+    echo
+    "$end"
+}
+
+tracetoh()
+{
+    cat <<EOF
+#ifndef TRACE_H
+#define TRACE_H
+
+/* This file is autogenerated by tracetool, do not edit. */
+
+#include "qemu-common.h"
+EOF
+    convert h
+    echo "#endif /* TRACE_H */"
+}
+
+tracetoc()
+{
+    echo "/* This file is autogenerated by tracetool, do not edit. */"
+    convert c
+}
+
+tracetod()
+{
+    if [ $backend != "dtrace" ]; then
+       echo "DTrace probe generator not applicable to $backend backend"
+       exit 1
+    fi
+    echo "/* This file is autogenerated by tracetool, do not edit. */"
+    convert d
+}
+
+tracetostap()
+{
+    if [ $backend != "dtrace" ]; then
+       echo "SystemTAP tapset generator not applicable to $backend backend"
+       exit 1
+    fi
+    if [ -z "$binary" ]; then
+       echo "--binary is required for SystemTAP tapset generator"
+       exit 1
+    fi
+    if [ -z "$targettype" ]; then
+       echo "--target-type is required for SystemTAP tapset generator"
+       exit 1
+    fi
+    if [ -z "$targetarch" ]; then
+       echo "--target-arch is required for SystemTAP tapset generator"
+       exit 1
+    fi
+    echo "/* This file is autogenerated by tracetool, do not edit. */"
+    convert stap
+}
+
+
+backend=
+output=
+binary=
+targettype=
+targetarch=
+
+
+until [ -z "$1" ]
+do
+  case "$1" in
+    "--nop" | "--simple" | "--ust" | "--dtrace") backend="${1#--}" ;;
+
+    "--binary") shift ; binary="$1" ;;
+    "--target-arch") shift ; targetarch="$1" ;;
+    "--target-type") shift ; targettype="$1" ;;
+
+    "-h" | "-c" | "-d") output="${1#-}" ;;
+    "--stap") output="${1#--}" ;;
+
+    "--check-backend") exit 0 ;; # used by ./configure to test for backend
+
+    *)
+      usage;;
+  esac
+  shift
+done
+
+if [ "$backend" = "" -o "$output" = "" ]; then
+  usage
+fi
+
+gen="traceto$output"
+"$gen"
+
+exit 0