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# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
# 2005, 2006, 2007, 2008, 2009  Free Software Foundation, Inc.
# This file is free software; the Free Software Foundation
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# with or without modifications, as long as this notice is preserved.

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# Generate code to set up dependency tracking.              -*- Autoconf -*-

# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2008
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      dirpart=`AS_DIRNAME("$mf")`
    else
      continue
    fi
    # Extract the definition of DEPDIR, am__include, and am__quote
    # from the Makefile without running `make'.
    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
    test -z "$DEPDIR" && continue
    am__include=`sed -n 's/^am__include = //p' < "$mf"`
    test -z "am__include" && continue
    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
    # When using ansi2knr, U may be empty or an underscore; expand it
    U=`sed -n 's/^U = //p' < "$mf"`
    # Find all dependency output files, they are included files with
    # $(DEPDIR) in their names.  We invoke sed twice because it is the
    # simplest approach to changing $(DEPDIR) to its actual value in the
    # expansion.
    for file in `sed -n "
      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
      # Make sure the directory exists.
      test -f "$dirpart/$file" && continue
      fdir=`AS_DIRNAME(["$file"])`
      AS_MKDIR_P([$dirpart/$fdir])
      # echo "creating $dirpart/$file"
      echo '# dummy' > "$dirpart/$file"
    done
  done
}
])# _AM_OUTPUT_DEPENDENCY_COMMANDS


# AM_OUTPUT_DEPENDENCY_COMMANDS
# -----------------------------
# This macro should only be invoked once -- use via AC_REQUIRE.
#
# This code is only required when automatic dependency tracking
# is enabled.  FIXME.  This creates each `.P' file that we will
# need in order to bootstrap the dependency handling code.
AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
[AC_CONFIG_COMMANDS([depfiles],
     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
     [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
])

# Do all the work for Automake.                             -*- Autoconf -*-

# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
# 2005, 2006, 2008, 2009 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# serial 16

# This macro actually does too much.  Some checks are only needed if
# your package does certain things.  But this isn't really a big deal.

# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
# AM_INIT_AUTOMAKE([OPTIONS])
# -----------------------------------------------
# The call with PACKAGE and VERSION arguments is the old style
# call (pre autoconf-2.50), which is being phased out.  PACKAGE
# and VERSION should now be passed to AC_INIT and removed from
# the call to AM_INIT_AUTOMAKE.
# We support both call styles for the transition.  After
# the next Automake release, Autoconf can make the AC_INIT
# arguments mandatory, and then we can depend on a new Autoconf
# release and drop the old call support.
AC_DEFUN([AM_INIT_AUTOMAKE],
[AC_PREREQ([2.62])dnl
dnl Autoconf wants to disallow AM_ names.  We explicitly allow
dnl the ones we care about.
m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
AC_REQUIRE([AC_PROG_INSTALL])dnl
if test "`cd $srcdir && pwd`" != "`pwd`"; then
  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  # is not polluted with repeated "-I."
  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  # test to see if srcdir already configured
  if test -f $srcdir/config.status; then
    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  fi
fi

# test whether we have cygpath
if test -z "$CYGPATH_W"; then
  if (cygpath --version) >/dev/null 2>/dev/null; then
    CYGPATH_W='cygpath -w'
  else
    CYGPATH_W=echo
  fi
fi
AC_SUBST([CYGPATH_W])

# Define the identity of the package.
dnl Distinguish between old-style and new-style calls.
m4_ifval([$2],
[m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
 AC_SUBST([PACKAGE], [$1])dnl
 AC_SUBST([VERSION], [$2])],
[_AM_SET_OPTIONS([$1])dnl
dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
m4_if(m4_ifdef([AC_PACKAGE_NAME], 1)m4_ifdef([AC_PACKAGE_VERSION], 1), 11,,
  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl

_AM_IF_OPTION([no-define],,
[AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])dnl

# Some tools Automake needs.
AC_REQUIRE([AM_SANITY_CHECK])dnl
AC_REQUIRE([AC_ARG_PROGRAM])dnl
AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version})
AM_MISSING_PROG(AUTOCONF, autoconf)
AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version})
AM_MISSING_PROG(AUTOHEADER, autoheader)
AM_MISSING_PROG(MAKEINFO, makeinfo)
AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
AC_REQUIRE([AM_PROG_MKDIR_P])dnl
# We need awk for the "check" target.  The system "awk" is bad on
# some platforms.
AC_REQUIRE([AC_PROG_AWK])dnl
AC_REQUIRE([AC_PROG_MAKE_SET])dnl
AC_REQUIRE([AM_SET_LEADING_DOT])dnl
_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
			     [_AM_PROG_TAR([v7])])])
_AM_IF_OPTION([no-dependencies],,
[AC_PROVIDE_IFELSE([AC_PROG_CC],
		  [_AM_DEPENDENCIES(CC)],
		  [define([AC_PROG_CC],
			  defn([AC_PROG_CC])[_AM_DEPENDENCIES(CC)])])dnl
AC_PROVIDE_IFELSE([AC_PROG_CXX],
		  [_AM_DEPENDENCIES(CXX)],
		  [define([AC_PROG_CXX],
			  defn([AC_PROG_CXX])[_AM_DEPENDENCIES(CXX)])])dnl
AC_PROVIDE_IFELSE([AC_PROG_OBJC],
		  [_AM_DEPENDENCIES(OBJC)],
		  [define([AC_PROG_OBJC],
			  defn([AC_PROG_OBJC])[_AM_DEPENDENCIES(OBJC)])])dnl
])
_AM_IF_OPTION([silent-rules], [AC_REQUIRE([AM_SILENT_RULES])])dnl
dnl The `parallel-tests' driver may need to know about EXEEXT, so add the
dnl `am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This macro
dnl is hooked onto _AC_COMPILER_EXEEXT early, see below.
AC_CONFIG_COMMANDS_PRE(dnl
[m4_provide_if([_AM_COMPILER_EXEEXT],
  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
])

dnl Hook into `_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
dnl mangled by Autoconf and run in a shell conditional statement.
m4_define([_AC_COMPILER_EXEEXT],
m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])


# When config.status generates a header, we must update the stamp-h file.
# This file resides in the same directory as the config header
# that is generated.  The stamp files are numbered to have different names.

# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
# loop where config.status creates the headers, so we can generate
# our stamp files there.
AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
[# Compute $1's index in $config_headers.
_am_arg=$1
_am_stamp_count=1
for _am_header in $config_headers :; do
  case $_am_header in
    $_am_arg | $_am_arg:* )
      break ;;
    * )
      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  esac
done
echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])

# Copyright (C) 2001, 2003, 2005, 2008  Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_PROG_INSTALL_SH
# ------------------
# Define $install_sh.
AC_DEFUN([AM_PROG_INSTALL_SH],
[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
if test x"${install_sh}" != xset; then
  case $am_aux_dir in
  *\ * | *\	*)
    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  *)
    install_sh="\${SHELL} $am_aux_dir/install-sh"
  esac
fi
AC_SUBST(install_sh)])

# Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
# From Jim Meyering

# Copyright (C) 1996, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2008
# Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# serial 5

# AM_MAINTAINER_MODE([DEFAULT-MODE])
# ----------------------------------
# Control maintainer-specific portions of Makefiles.
# Default is to disable them, unless `enable' is passed literally.
# For symmetry, `disable' may be passed as well.  Anyway, the user
# can override the default with the --enable/--disable switch.
AC_DEFUN([AM_MAINTAINER_MODE],
[m4_case(m4_default([$1], [disable]),
       [enable], [m4_define([am_maintainer_other], [disable])],
       [disable], [m4_define([am_maintainer_other], [enable])],
       [m4_define([am_maintainer_other], [enable])
        m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
AC_MSG_CHECKING([whether to am_maintainer_other maintainer-specific portions of Makefiles])
  dnl maintainer-mode's default is 'disable' unless 'enable' is passed
  AC_ARG_ENABLE([maintainer-mode],
[  --][am_maintainer_other][-maintainer-mode  am_maintainer_other make rules and dependencies not useful
			  (and sometimes confusing) to the casual installer],
      [USE_MAINTAINER_MODE=$enableval],
      [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
  AC_MSG_RESULT([$USE_MAINTAINER_MODE])
  AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
  MAINT=$MAINTAINER_MODE_TRUE
  AC_SUBST([MAINT])dnl
]
)

AU_DEFUN([jm_MAINTAINER_MODE], [AM_MAINTAINER_MODE])

# Check to see how 'make' treats includes.	            -*- Autoconf -*-

# Copyright (C) 2001, 2002, 2003, 2005, 2009  Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# serial 4

# AM_MAKE_INCLUDE()
# -----------------
# Check to see how make treats includes.
AC_DEFUN([AM_MAKE_INCLUDE],
[am_make=${MAKE-make}
cat > confinc << 'END'
am__doit:
	@echo this is the am__doit target
.PHONY: am__doit
END
# If we don't find an include directive, just comment out the code.
AC_MSG_CHECKING([for style of include used by $am_make])
am__include="#"
am__quote=
_am_result=none
# First try GNU make style include.
echo "include confinc" > confmf
# Ignore all kinds of additional output from `make'.
case `$am_make -s -f confmf 2> /dev/null` in #(
*the\ am__doit\ target*)
  am__include=include
  am__quote=
  _am_result=GNU
  ;;
esac
# Now try BSD make style include.
if test "$am__include" = "#"; then
   echo '.include "confinc"' > confmf
   case `$am_make -s -f confmf 2> /dev/null` in #(
   *the\ am__doit\ target*)
     am__include=.include
     am__quote="\""
     _am_result=BSD
     ;;
   esac
fi
AC_SUBST([am__include])
AC_SUBST([am__quote])
AC_MSG_RESULT([$_am_result])
rm -f confinc confmf
])

# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-

# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2005, 2008
# Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# serial 6

# AM_MISSING_PROG(NAME, PROGRAM)
# ------------------------------
AC_DEFUN([AM_MISSING_PROG],
[AC_REQUIRE([AM_MISSING_HAS_RUN])
$1=${$1-"${am_missing_run}$2"}
AC_SUBST($1)])


# AM_MISSING_HAS_RUN
# ------------------
# Define MISSING if not defined so far and test if it supports --run.
# If it does, set am_missing_run to use it, otherwise, to nothing.
AC_DEFUN([AM_MISSING_HAS_RUN],
[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
AC_REQUIRE_AUX_FILE([missing])dnl
if test x"${MISSING+set}" != xset; then
  case $am_aux_dir in
  *\ * | *\	*)
    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
  *)
    MISSING="\${SHELL} $am_aux_dir/missing" ;;
  esac
fi
# Use eval to expand $SHELL
if eval "$MISSING --run true"; then
  am_missing_run="$MISSING --run "
else
  am_missing_run=
  AC_MSG_WARN([`missing' script is too old or missing])
fi
])

# Copyright (C) 2003, 2004, 2005, 2006  Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_PROG_MKDIR_P
# ---------------
# Check for `mkdir -p'.
AC_DEFUN([AM_PROG_MKDIR_P],
[AC_PREREQ([2.60])dnl
AC_REQUIRE([AC_PROG_MKDIR_P])dnl
dnl Automake 1.8 to 1.9.6 used to define mkdir_p.  We now use MKDIR_P,
dnl while keeping a definition of mkdir_p for backward compatibility.
dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.
dnl However we cannot define mkdir_p as $(MKDIR_P) for the sake of
dnl Makefile.ins that do not define MKDIR_P, so we do our own
dnl adjustment using top_builddir (which is defined more often than
dnl MKDIR_P).
AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl
case $mkdir_p in
  [[\\/$]]* | ?:[[\\/]]*) ;;
  */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
esac
])

# Helper functions for option handling.                     -*- Autoconf -*-

# Copyright (C) 2001, 2002, 2003, 2005, 2008  Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# serial 4

# _AM_MANGLE_OPTION(NAME)
# -----------------------
AC_DEFUN([_AM_MANGLE_OPTION],
[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])

# _AM_SET_OPTION(NAME)
# ------------------------------
# Set option NAME.  Presently that only means defining a flag for this option.
AC_DEFUN([_AM_SET_OPTION],
[m4_define(_AM_MANGLE_OPTION([$1]), 1)])

# _AM_SET_OPTIONS(OPTIONS)
# ----------------------------------
# OPTIONS is a space-separated list of Automake options.
AC_DEFUN([_AM_SET_OPTIONS],
[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])

# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
# -------------------------------------------
# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
AC_DEFUN([_AM_IF_OPTION],
[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])

# Check to make sure that the build environment is sane.    -*- Autoconf -*-

# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005, 2008
# Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# serial 5

# AM_SANITY_CHECK
# ---------------
AC_DEFUN([AM_SANITY_CHECK],
[AC_MSG_CHECKING([whether build environment is sane])
# Just in case
sleep 1
echo timestamp > conftest.file
# Reject unsafe characters in $srcdir or the absolute working directory
# name.  Accept space and tab only in the latter.
am_lf='
'
case `pwd` in
  *[[\\\"\#\$\&\'\`$am_lf]]*)
    AC_MSG_ERROR([unsafe absolute working directory name]);;
esac
case $srcdir in
  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
    AC_MSG_ERROR([unsafe srcdir value: `$srcdir']);;
esac

# Do `set' in a subshell so we don't clobber the current shell's
# arguments.  Must try -L first in case configure is actually a
# symlink; some systems play weird games with the mod time of symlinks
# (eg FreeBSD returns the mod time of the symlink's containing
# directory).
if (
   set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
   if test "$[*]" = "X"; then
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      set X `ls -t "$srcdir/configure" conftest.file`
   fi
   rm -f conftest.file
   if test "$[*]" != "X $srcdir/configure conftest.file" \
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      # If neither matched, then we have a broken ls.  This can happen
      # if, for instance, CONFIG_SHELL is bash and it inherits a
      # broken ls alias from the environment.  This has actually
      # happened.  Such a system could not be considered "sane".
      AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
alias in your environment])
   fi

   test "$[2]" = conftest.file
   )
then
   # Ok.
   :
else
   AC_MSG_ERROR([newly created file is older than distributed files!
Check your system clock])
fi
AC_MSG_RESULT(yes)])

# Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# AM_PROG_INSTALL_STRIP
# ---------------------
# One issue with vendor `install' (even GNU) is that you can't
# specify the program used to strip binaries.  This is especially
# annoying in cross-compiling environments, where the build's strip
# is unlikely to handle the host's binaries.
# Fortunately install-sh will honor a STRIPPROG variable, so we
# always use install-sh in `make install-strip', and initialize
# STRIPPROG with the value of the STRIP variable (set by the user).
AC_DEFUN([AM_PROG_INSTALL_STRIP],
[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
# Installed binaries are usually stripped using `strip' when the user
# run `make install-strip'.  However `strip' might not be the right
# tool to use in cross-compilation environments, therefore Automake
# will honor the `STRIP' environment variable to overrule this program.
dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
if test "$cross_compiling" != no; then
  AC_CHECK_TOOL([STRIP], [strip], :)
fi
INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
AC_SUBST([INSTALL_STRIP_PROGRAM])])

# Copyright (C) 2006, 2008  Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# serial 2

# _AM_SUBST_NOTMAKE(VARIABLE)
# ---------------------------
# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
# This macro is traced by Automake.
AC_DEFUN([_AM_SUBST_NOTMAKE])

# AM_SUBST_NOTMAKE(VARIABLE)
# ---------------------------
# Public sister of _AM_SUBST_NOTMAKE.
AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])

# Check how to create a tarball.                            -*- Autoconf -*-

# Copyright (C) 2004, 2005  Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.

# serial 2

# _AM_PROG_TAR(FORMAT)
# --------------------
# Check how to create a tarball in format FORMAT.
# FORMAT should be one of `v7', `ustar', or `pax'.
#
# Substitute a variable $(am__tar) that is a command
# writing to stdout a FORMAT-tarball containing the directory
# $tardir.
#     tardir=directory && $(am__tar) > result.tar
#
# Substitute a variable $(am__untar) that extract such
# a tarball read from stdin.
#     $(am__untar) < result.tar
AC_DEFUN([_AM_PROG_TAR],
[# Always define AMTAR for backward compatibility.
AM_MISSING_PROG([AMTAR], [tar])
m4_if([$1], [v7],
     [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
     [m4_case([$1], [ustar],, [pax],,
              [m4_fatal([Unknown tar format])])
AC_MSG_CHECKING([how to create a $1 tar archive])
# Loop over all known methods to create a tar archive until one works.
_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
_am_tools=${am_cv_prog_tar_$1-$_am_tools}
# Do not fold the above two line into one, because Tru64 sh and
# Solaris sh will not grok spaces in the rhs of `-'.
for _am_tool in $_am_tools
do
  case $_am_tool in
  gnutar)
    for _am_tar in tar gnutar gtar;
    do
      AM_RUN_LOG([$_am_tar --version]) && break
    done
    am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
    am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
    am__untar="$_am_tar -xf -"
    ;;
  plaintar)
    # Must skip GNU tar: if it does not support --format= it doesn't create
    # ustar tarball either.
    (tar --version) >/dev/null 2>&1 && continue
    am__tar='tar chf - "$$tardir"'
    am__tar_='tar chf - "$tardir"'
    am__untar='tar xf -'
    ;;
  pax)
    am__tar='pax -L -x $1 -w "$$tardir"'
    am__tar_='pax -L -x $1 -w "$tardir"'
    am__untar='pax -r'
    ;;
  cpio)
    am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
    am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
    am__untar='cpio -i -H $1 -d'
    ;;
  none)
    am__tar=false
    am__tar_=false
    am__untar=false
    ;;
  esac

  # If the value was cached, stop now.  We just wanted to have am__tar
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  test -n "${am_cv_prog_tar_$1}" && break

  # tar/untar a dummy directory, and stop if the command works
  rm -rf conftest.dir
  mkdir conftest.dir
  echo GrepMe > conftest.dir/file
  AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
  rm -rf conftest.dir
  if test -s conftest.tar; then
    AM_RUN_LOG([$am__untar <conftest.tar])
    grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
  fi
done
rm -rf conftest.dir

AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
AC_MSG_RESULT([$am_cv_prog_tar_$1])])
AC_SUBST([am__tar])
AC_SUBST([am__untar])
]) # _AM_PROG_TAR

m4_include([../bfd/bfd.m4])
m4_include([../bfd/warning.m4])
m4_include([../config/acx.m4])
m4_include([../config/depstand.m4])
m4_include([../config/gettext-sister.m4])
m4_include([../config/largefile.m4])
m4_include([../config/lead-dot.m4])
m4_include([../config/nls.m4])
m4_include([../config/override.m4])
m4_include([../config/plugins.m4])
m4_include([../config/po.m4])
m4_include([../config/progtest.m4])
m4_include([../config/stdint.m4])
m4_include([../libtool.m4])
m4_include([../ltoptions.m4])
m4_include([../ltsugar.m4])
m4_include([../ltversion.m4])
m4_include([../lt~obsolete.m4])
m4_include([acinclude.m4])
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/* Target-vector operations for controlling win32 child processes, for GDB.

   Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 Free
   Software Foundation, Inc.

   Contributed by Cygnus Solutions, A Red Hat Company.

   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 eve nthe 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, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

/* Originally by Steve Chamberlain, sac@cygnus.com */

/* We assume we're being built with and will be used for cygwin.  */

#include "defs.h"
#include "frame.h"		/* required by inferior.h */
#include "inferior.h"
#include "target.h"
#include "gdbcore.h"
#include "command.h"
#include "completer.h"
#include "regcache.h"
#include "top.h"
#include <signal.h>
#include <sys/types.h>
#include <fcntl.h>
#include <stdlib.h>
#include <windows.h>
#include <imagehlp.h>
#include <sys/cygwin.h>

#include "buildsym.h"
#include "symfile.h"
#include "objfiles.h"
#include "gdb_string.h"
#include "gdbthread.h"
#include "gdbcmd.h"
#include <sys/param.h>
#include <unistd.h>
#include "exec.h"

#include "i386-tdep.h"
#include "i387-tdep.h"

/* The ui's event loop. */
extern int (*ui_loop_hook) (int signo);

/* If we're not using the old Cygwin header file set, define the
   following which never should have been in the generic Win32 API
   headers in the first place since they were our own invention... */
#ifndef _GNU_H_WINDOWS_H
enum
  {
    FLAG_TRACE_BIT = 0x100,
    CONTEXT_DEBUGGER = (CONTEXT_FULL | CONTEXT_FLOATING_POINT)
  };
#endif
#include <sys/procfs.h>
#include <psapi.h>

#define CONTEXT_DEBUGGER_DR CONTEXT_DEBUGGER | CONTEXT_DEBUG_REGISTERS \
	| CONTEXT_EXTENDED_REGISTERS

static unsigned dr[8];
static int debug_registers_changed;
static int debug_registers_used;

/* The string sent by cygwin when it processes a signal.
   FIXME: This should be in a cygwin include file. */
#define CYGWIN_SIGNAL_STRING "cygwin: signal"

#define CHECK(x)	check (x, __FILE__,__LINE__)
#define DEBUG_EXEC(x)	if (debug_exec)		printf_unfiltered x
#define DEBUG_EVENTS(x)	if (debug_events)	printf_unfiltered x
#define DEBUG_MEM(x)	if (debug_memory)	printf_unfiltered x
#define DEBUG_EXCEPT(x)	if (debug_exceptions)	printf_unfiltered x

/* Forward declaration */
extern struct target_ops child_ops;

static void child_stop (void);
static int win32_child_thread_alive (ptid_t);
void child_kill_inferior (void);

static enum target_signal last_sig = TARGET_SIGNAL_0;
/* Set if a signal was received from the debugged process */

/* Thread information structure used to track information that is
   not available in gdb's thread structure. */
typedef struct thread_info_struct
  {
    struct thread_info_struct *next;
    DWORD id;
    HANDLE h;
    char *name;
    int suspend_count;
    int reload_context;
    CONTEXT context;
    STACKFRAME sf;
  }
thread_info;

static thread_info thread_head;

/* The process and thread handles for the above context. */

static DEBUG_EVENT current_event;	/* The current debug event from
					   WaitForDebugEvent */
static HANDLE current_process_handle;	/* Currently executing process */
static thread_info *current_thread;	/* Info on currently selected thread */
static DWORD main_thread_id;		/* Thread ID of the main thread */

/* Counts of things. */
static int exception_count = 0;
static int event_count = 0;
static int saw_create;

/* User options. */
static int new_console = 0;
static int new_group = 1;
static int debug_exec = 0;		/* show execution */
static int debug_events = 0;		/* show events from kernel */
static int debug_memory = 0;		/* show target memory accesses */
static int debug_exceptions = 0;	/* show target exceptions */
static int useshell = 0;		/* use shell for subprocesses */

/* This vector maps GDB's idea of a register's number into an address
   in the win32 exception context vector.

   It also contains the bit mask needed to load the register in question.

   One day we could read a reg, we could inspect the context we
   already have loaded, if it doesn't have the bit set that we need,
   we read that set of registers in using GetThreadContext.  If the
   context already contains what we need, we just unpack it. Then to
   write a register, first we have to ensure that the context contains
   the other regs of the group, and then we copy the info in and set
   out bit. */

#define context_offset(x) ((int)&(((CONTEXT *)NULL)->x))
static const int mappings[] =
{
  context_offset (Eax),
  context_offset (Ecx),
  context_offset (Edx),
  context_offset (Ebx),
  context_offset (Esp),
  context_offset (Ebp),
  context_offset (Esi),
  context_offset (Edi),
  context_offset (Eip),
  context_offset (EFlags),
  context_offset (SegCs),
  context_offset (SegSs),
  context_offset (SegDs),
  context_offset (SegEs),
  context_offset (SegFs),
  context_offset (SegGs),
  context_offset (FloatSave.RegisterArea[0 * 10]),
  context_offset (FloatSave.RegisterArea[1 * 10]),
  context_offset (FloatSave.RegisterArea[2 * 10]),
  context_offset (FloatSave.RegisterArea[3 * 10]),
  context_offset (FloatSave.RegisterArea[4 * 10]),
  context_offset (FloatSave.RegisterArea[5 * 10]),
  context_offset (FloatSave.RegisterArea[6 * 10]),
  context_offset (FloatSave.RegisterArea[7 * 10]),
  context_offset (FloatSave.ControlWord),
  context_offset (FloatSave.StatusWord),
  context_offset (FloatSave.TagWord),
  context_offset (FloatSave.ErrorSelector),
  context_offset (FloatSave.ErrorOffset),
  context_offset (FloatSave.DataSelector),
  context_offset (FloatSave.DataOffset),
  context_offset (FloatSave.ErrorSelector)
  /* XMM0-7 */ ,
  context_offset (ExtendedRegisters[10*16]),
  context_offset (ExtendedRegisters[11*16]),
  context_offset (ExtendedRegisters[12*16]),
  context_offset (ExtendedRegisters[13*16]),
  context_offset (ExtendedRegisters[14*16]),
  context_offset (ExtendedRegisters[15*16]),
  context_offset (ExtendedRegisters[16*16]),
  context_offset (ExtendedRegisters[17*16]),
  /* MXCSR */
  context_offset (ExtendedRegisters[24])
};

#undef context_offset

/* This vector maps the target's idea of an exception (extracted
   from the DEBUG_EVENT structure) to GDB's idea. */

struct xlate_exception
  {
    int them;
    enum target_signal us;
  };

static const struct xlate_exception
  xlate[] =
{
  {EXCEPTION_ACCESS_VIOLATION, TARGET_SIGNAL_SEGV},
  {STATUS_STACK_OVERFLOW, TARGET_SIGNAL_SEGV},
  {EXCEPTION_BREAKPOINT, TARGET_SIGNAL_TRAP},
  {DBG_CONTROL_C, TARGET_SIGNAL_INT},
  {EXCEPTION_SINGLE_STEP, TARGET_SIGNAL_TRAP},
  {STATUS_FLOAT_DIVIDE_BY_ZERO, TARGET_SIGNAL_FPE},
  {-1, -1}};

static void
check (BOOL ok, const char *file, int line)
{
  if (!ok)
    printf_filtered ("error return %s:%d was %lu\n", file, line,
		     GetLastError ());
}

/* Find a thread record given a thread id.
   If get_context then also retrieve the context for this
   thread. */
static thread_info *
thread_rec (DWORD id, int get_context)
{
  thread_info *th;

  for (th = &thread_head; (th = th->next) != NULL;)
    if (th->id == id)
      {
	if (!th->suspend_count && get_context)
	  {
	    if (get_context > 0 && id != current_event.dwThreadId)
	      th->suspend_count = SuspendThread (th->h) + 1;
	    else if (get_context < 0)
	      th->suspend_count = -1;
	    th->reload_context = 1;
	  }
	return th;
      }

  return NULL;
}

/* Add a thread to the thread list */
static thread_info *
child_add_thread (DWORD id, HANDLE h)
{
  thread_info *th;

  if ((th = thread_rec (id, FALSE)))
    return th;

  th = (thread_info *) xmalloc (sizeof (*th));
  memset (th, 0, sizeof (*th));
  th->id = id;
  th->h = h;
  th->next = thread_head.next;
  thread_head.next = th;
  add_thread (pid_to_ptid (id));
  /* Set the debug registers for the new thread in they are used.  */
  if (debug_registers_used)
    {
      /* Only change the value of the debug registers.  */
      th->context.ContextFlags = CONTEXT_DEBUG_REGISTERS;
      CHECK (GetThreadContext (th->h, &th->context));
      th->context.Dr0 = dr[0];
      th->context.Dr1 = dr[1];
      th->context.Dr2 = dr[2];
      th->context.Dr3 = dr[3];
      /* th->context.Dr6 = dr[6];
      FIXME: should we set dr6 also ?? */
      th->context.Dr7 = dr[7];
      CHECK (SetThreadContext (th->h, &th->context));
      th->context.ContextFlags = 0;
    }
  return th;
}

/* Clear out any old thread list and reintialize it to a
   pristine state. */
static void
child_init_thread_list (void)
{
  thread_info *th = &thread_head;

  DEBUG_EVENTS (("gdb: child_init_thread_list\n"));
  init_thread_list ();
  while (th->next != NULL)
    {
      thread_info *here = th->next;
      th->next = here->next;
      (void) CloseHandle (here->h);
      xfree (here);
    }
}

/* Delete a thread from the list of threads */
static void
child_delete_thread (DWORD id)
{
  thread_info *th;

  if (info_verbose)
    printf_unfiltered ("[Deleting %s]\n", target_pid_to_str (pid_to_ptid (id)));
  delete_thread (pid_to_ptid (id));

  for (th = &thread_head;
       th->next != NULL && th->next->id != id;
       th = th->next)
    continue;

  if (th->next != NULL)
    {
      thread_info *here = th->next;
      th->next = here->next;
      CloseHandle (here->h);
      xfree (here);
    }
}

static void
do_child_fetch_inferior_registers (int r)
{
  char *context_offset = ((char *) &current_thread->context) + mappings[r];
  long l;

  if (!current_thread)
    return;	/* Windows sometimes uses a non-existent thread id in its
		   events */

  if (current_thread->reload_context)
    {
      thread_info *th = current_thread;
      th->context.ContextFlags = CONTEXT_DEBUGGER_DR;
      GetThreadContext (th->h, &th->context);
      /* Copy dr values from that thread.  */
      dr[0] = th->context.Dr0;
      dr[1] = th->context.Dr1;
      dr[2] = th->context.Dr2;
      dr[3] = th->context.Dr3;
      dr[6] = th->context.Dr6;
      dr[7] = th->context.Dr7;
      current_thread->reload_context = 0;
    }

#define I387_ST0_REGNUM I386_ST0_REGNUM

  if (r == I387_FISEG_REGNUM)
    {
      l = *((long *) context_offset) & 0xffff;
      supply_register (r, (char *) &l);
    }
  else if (r == I387_FOP_REGNUM)
    {
      l = (*((long *) context_offset) >> 16) & ((1 << 11) - 1);
      supply_register (r, (char *) &l);
    }
  else if (r >= 0)
    supply_register (r, context_offset);
  else
    {
      for (r = 0; r < NUM_REGS; r++)
	do_child_fetch_inferior_registers (r);
    }

#undef I387_ST0_REGNUM
}

static void
child_fetch_inferior_registers (int r)
{
  current_thread = thread_rec (PIDGET (inferior_ptid), TRUE);
  /* Check if current_thread exists.  Windows sometimes uses a non-existent
     thread id in its events */
  if (current_thread)
    do_child_fetch_inferior_registers (r);
}

static void
do_child_store_inferior_registers (int r)
{
  if (!current_thread)
    /* Windows sometimes uses a non-existent thread id in its events */;
  else if (r >= 0)
    regcache_collect (r, ((char *) &current_thread->context) + mappings[r]);
  else
    {
      for (r = 0; r < NUM_REGS; r++)
	do_child_store_inferior_registers (r);
    }
}

/* Store a new register value into the current thread context */
static void
child_store_inferior_registers (int r)
{
  current_thread = thread_rec (PIDGET (inferior_ptid), TRUE);
  /* Check if current_thread exists.  Windows sometimes uses a non-existent
     thread id in its events */
  if (current_thread)
    do_child_store_inferior_registers (r);
}

static int psapi_loaded = 0;
static HMODULE psapi_module_handle = NULL;
static BOOL WINAPI (*psapi_EnumProcessModules) (HANDLE, HMODULE *, DWORD, LPDWORD) = NULL;
static BOOL WINAPI (*psapi_GetModuleInformation) (HANDLE, HMODULE, LPMODULEINFO, DWORD) = NULL;
static DWORD WINAPI (*psapi_GetModuleFileNameExA) (HANDLE, HMODULE, LPSTR, DWORD) = NULL;

int
psapi_get_dll_name (DWORD BaseAddress, char *dll_name_ret)
{
  DWORD len;
  MODULEINFO mi;
  int i;
  HMODULE dh_buf[1];
  HMODULE *DllHandle = dh_buf;
  DWORD cbNeeded;
  BOOL ok;

  if (!psapi_loaded ||
      psapi_EnumProcessModules == NULL ||
      psapi_GetModuleInformation == NULL ||
      psapi_GetModuleFileNameExA == NULL)
    {
      if (psapi_loaded)
	goto failed;
      psapi_loaded = 1;
      psapi_module_handle = LoadLibrary ("psapi.dll");
      if (!psapi_module_handle)
	{
	  /* printf_unfiltered ("error loading psapi.dll: %u", GetLastError ()); */
	  goto failed;
	}
      psapi_EnumProcessModules = GetProcAddress (psapi_module_handle, "EnumProcessModules");
      psapi_GetModuleInformation = GetProcAddress (psapi_module_handle, "GetModuleInformation");
      psapi_GetModuleFileNameExA = (void *) GetProcAddress (psapi_module_handle,
						    "GetModuleFileNameExA");
      if (psapi_EnumProcessModules == NULL ||
	  psapi_GetModuleInformation == NULL ||
	  psapi_GetModuleFileNameExA == NULL)
	goto failed;
    }

  cbNeeded = 0;
  ok = (*psapi_EnumProcessModules) (current_process_handle,
				    DllHandle,
				    sizeof (HMODULE),
				    &cbNeeded);

  if (!ok || !cbNeeded)
    goto failed;

  DllHandle = (HMODULE *) alloca (cbNeeded);
  if (!DllHandle)
    goto failed;

  ok = (*psapi_EnumProcessModules) (current_process_handle,
				    DllHandle,
				    cbNeeded,
				    &cbNeeded);
  if (!ok)
    goto failed;

  for (i = 0; i < (int) (cbNeeded / sizeof (HMODULE)); i++)
    {
      if (!(*psapi_GetModuleInformation) (current_process_handle,
					  DllHandle[i],
					  &mi,
					  sizeof (mi)))
	error ("Can't get module info");

      len = (*psapi_GetModuleFileNameExA) (current_process_handle,
					   DllHandle[i],
					   dll_name_ret,
					   MAX_PATH);
      if (len == 0)
	error ("Error getting dll name: %u\n", (unsigned) GetLastError ());

      if ((DWORD) (mi.lpBaseOfDll) == BaseAddress)
	return 1;
    }

failed:
  dll_name_ret[0] = '\0';
  return 0;
}

/* Encapsulate the information required in a call to
   symbol_file_add_args */
struct safe_symbol_file_add_args
{
  char *name;
  int from_tty;
  struct section_addr_info *addrs;
  int mainline;
  int flags;
  struct ui_file *err, *out;
  struct objfile *ret;
};

/* Maintain a linked list of "so" information. */
struct so_stuff
{
  struct so_stuff *next;
  DWORD load_addr;
  DWORD end_addr;
  int loaded;
  struct objfile *objfile;
  char name[1];
} solib_start, *solib_end;

/* Call symbol_file_add with stderr redirected.  We don't care if there
   are errors. */
static int
safe_symbol_file_add_stub (void *argv)
{
#define p ((struct safe_symbol_file_add_args *)argv)
  struct so_stuff *so = &solib_start;

  while ((so = so->next))
    if (so->loaded && strcasecmp (so->name, p->name) == 0)
      return 0;
  p->ret = symbol_file_add (p->name, p->from_tty, p->addrs, p->mainline, p->flags);
  return !!p->ret;
#undef p
}

/* Restore gdb's stderr after calling symbol_file_add */
static void
safe_symbol_file_add_cleanup (void *p)
{
#define sp ((struct safe_symbol_file_add_args *)p)
  gdb_flush (gdb_stderr);
  gdb_flush (gdb_stdout);
  ui_file_delete (gdb_stderr);
  ui_file_delete (gdb_stdout);
  gdb_stderr = sp->err;
  gdb_stdout = sp->out;
#undef sp
}

/* symbol_file_add wrapper that prevents errors from being displayed. */
static struct objfile *
safe_symbol_file_add (char *name, int from_tty,
		      struct section_addr_info *addrs,
		      int mainline, int flags)
{
  struct safe_symbol_file_add_args p;
  struct cleanup *cleanup;

  cleanup = make_cleanup (safe_symbol_file_add_cleanup, &p);

  p.err = gdb_stderr;
  p.out = gdb_stdout;
  gdb_flush (gdb_stderr);
  gdb_flush (gdb_stdout);
  gdb_stderr = ui_file_new ();
  gdb_stdout = ui_file_new ();
  p.name = name;
  p.from_tty = from_tty;
  p.addrs = addrs;
  p.mainline = mainline;
  p.flags = flags;
  catch_errors (safe_symbol_file_add_stub, &p, "", RETURN_MASK_ERROR);

  do_cleanups (cleanup);
  return p.ret;
}

/* Remember the maximum DLL length for printing in info dll command. */
int max_dll_name_len;

static void
register_loaded_dll (const char *name, DWORD load_addr)
{
  struct so_stuff *so;
  char ppath[MAX_PATH + 1];
  char buf[MAX_PATH + 1];
  char cwd[MAX_PATH + 1];
  char *p;
  WIN32_FIND_DATA w32_fd;
  HANDLE h = FindFirstFile(name, &w32_fd);
  MEMORY_BASIC_INFORMATION m;
  size_t len;

  if (h == INVALID_HANDLE_VALUE)
    strcpy (buf, name);
  else
    {
      FindClose (h);
      strcpy (buf, name);
      if (GetCurrentDirectory (MAX_PATH + 1, cwd))
	{
	  p = strrchr (buf, '\\');
	  if (p)
	    p[1] = '\0';
	  SetCurrentDirectory (buf);
	  GetFullPathName (w32_fd.cFileName, MAX_PATH, buf, &p);
	  SetCurrentDirectory (cwd);
	}
    }

  cygwin_conv_to_posix_path (buf, ppath);
  so = (struct so_stuff *) xmalloc (sizeof (struct so_stuff) + strlen (ppath) + 8 + 1);
  so->loaded = 0;
  so->load_addr = load_addr;
  if (VirtualQueryEx (current_process_handle, (void *) load_addr, &m,
		      sizeof (m)))
    so->end_addr = (DWORD) m.AllocationBase + m.RegionSize;
  else
    so->end_addr = load_addr + 0x2000;	/* completely arbitrary */

  so->next = NULL;
  so->objfile = NULL;
  strcpy (so->name, ppath);

  solib_end->next = so;
  solib_end = so;
  len = strlen (ppath);
  if (len > max_dll_name_len)
    max_dll_name_len = len;
}

char *
get_image_name (HANDLE h, void *address, int unicode)
{
  static char buf[(2 * MAX_PATH) + 1];
  DWORD size = unicode ? sizeof (WCHAR) : sizeof (char);
  char *address_ptr;
  int len = 0;
  char b[2];
  DWORD done;

  /* Attempt to read the name of the dll that was detected.
     This is documented to work only when actively debugging
     a program.  It will not work for attached processes. */
  if (address == NULL)
    return NULL;

  /* See if we could read the address of a string, and that the
     address isn't null. */
  if (!ReadProcessMemory (h, address,  &address_ptr, sizeof (address_ptr), &done)
      || done != sizeof (address_ptr) || !address_ptr)
    return NULL;

  /* Find the length of the string */
  while (ReadProcessMemory (h, address_ptr + len++ * size, &b, size, &done)
	 && (b[0] != 0 || b[size - 1] != 0) && done == size)
    continue;

  if (!unicode)
    ReadProcessMemory (h, address_ptr, buf, len, &done);
  else
    {
      WCHAR *unicode_address = (WCHAR *) alloca (len * sizeof (WCHAR));
      ReadProcessMemory (h, address_ptr, unicode_address, len * sizeof (WCHAR),
			 &done);

      WideCharToMultiByte (CP_ACP, 0, unicode_address, len, buf, len, 0, 0);
    }

  return buf;
}

/* Wait for child to do something.  Return pid of child, or -1 in case
   of error; store status through argument pointer OURSTATUS.  */
static int
handle_load_dll (void *dummy)
{
  LOAD_DLL_DEBUG_INFO *event = &current_event.u.LoadDll;
  char dll_buf[MAX_PATH + 1];
  char *dll_name = NULL;
  char *p;

  dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';

  if (!psapi_get_dll_name ((DWORD) (event->lpBaseOfDll), dll_buf))
    dll_buf[0] = dll_buf[sizeof (dll_buf) - 1] = '\0';

  dll_name = dll_buf;

  if (*dll_name == '\0')
    dll_name = get_image_name (current_process_handle, event->lpImageName, event->fUnicode);
  if (!dll_name)
    return 1;

  register_loaded_dll (dll_name, (DWORD) event->lpBaseOfDll + 0x1000);

  return 1;
}

static int
handle_unload_dll (void *dummy)
{
  DWORD lpBaseOfDll = (DWORD) current_event.u.UnloadDll.lpBaseOfDll + 0x1000;
  struct so_stuff *so;

  for (so = &solib_start; so->next != NULL; so = so->next)
    if (so->next->load_addr == lpBaseOfDll)
      {
	struct so_stuff *sodel = so->next;
	so->next = sodel->next;
	if (!so->next)
	  solib_end = so;
	if (sodel->objfile)
	  free_objfile (sodel->objfile);
	xfree(sodel);
	return 1;
      }
  error ("Error: dll starting at 0x%lx not found.\n", (DWORD) lpBaseOfDll);

  return 0;
}

char *
solib_address (CORE_ADDR address)
{
  struct so_stuff *so;
  for (so = &solib_start; so->next != NULL; so = so->next)
    if (address >= so->load_addr && address <= so->end_addr)
      return so->name;
  return NULL;
}

/* Return name of last loaded DLL. */
char *
child_solib_loaded_library_pathname (int pid)
{
  return !solib_end || !solib_end->name[0] ? NULL : solib_end->name;
}

/* Clear list of loaded DLLs. */
void
child_clear_solibs (void)
{
  struct so_stuff *so, *so1 = solib_start.next;

  while ((so = so1) != NULL)
    {
      so1 = so->next;
      xfree (so);
    }

  solib_start.next = NULL;
  solib_start.objfile = NULL;
  solib_end = &solib_start;
  max_dll_name_len = sizeof ("DLL Name") - 1;
}

/* Get the loaded address of all sections, given that .text was loaded
   at text_load. Assumes that all sections are subject to the same
   relocation offset. Returns NULL if problems occur or if the
   sections were not relocated. */

static struct section_addr_info *
get_relocated_section_addrs (bfd *abfd, CORE_ADDR text_load)
{
  struct section_addr_info *result = NULL;
  int section_count = bfd_count_sections (abfd);
  asection *text_section = bfd_get_section_by_name (abfd, ".text");
  CORE_ADDR text_vma;

  if (!text_section)
    {
      /* Couldn't get the .text section. Weird. */
    }

  else if (text_load == (text_vma = bfd_get_section_vma (abfd, text_section)))
    {
      /* DLL wasn't relocated. */
    }

  else
    {
      /* Figure out all sections' loaded addresses. The offset here is
	 such that taking a bfd_get_section_vma() result and adding
	 offset will give the real load address of the section. */

      CORE_ADDR offset = text_load - text_vma;

      struct section_table *table_start = NULL;
      struct section_table *table_end = NULL;
      struct section_table *iter = NULL;

      build_section_table (abfd, &table_start, &table_end);

      for (iter = table_start; iter < table_end; ++iter)
	{
	  /* Relocated addresses. */
	  iter->addr += offset;
	  iter->endaddr += offset;
	}

      result = build_section_addr_info_from_section_table (table_start,
							   table_end);

      xfree (table_start);
    }

  return result;
}

/* Add DLL symbol information. */
static struct objfile *
solib_symbols_add (char *name, int from_tty, CORE_ADDR load_addr)
{
  struct section_addr_info *addrs = NULL;
  static struct objfile *result = NULL;
  bfd *abfd = NULL;

  /* 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. */

  if (!name || !name[0])
    return NULL;

  abfd = bfd_openr (name, "pei-i386");

  if (!abfd)
    {
      /* pei failed - try pe */
      abfd = bfd_openr (name, "pe-i386");
    }

  if (abfd)
    {
      if (bfd_check_format (abfd, bfd_object))
	{
	  addrs = get_relocated_section_addrs (abfd, load_addr);
	}

      bfd_close (abfd);
    }

  if (addrs)
    {
      result = safe_symbol_file_add (name, from_tty, addrs, 0, OBJF_SHARED);
      free_section_addr_info (addrs);
    }
  else
    {
      /* Fallback on handling just the .text section. */
      struct cleanup *my_cleanups;

      addrs = alloc_section_addr_info (1);
      my_cleanups = make_cleanup (xfree, addrs);
      addrs->other[0].name = ".text";
      addrs->other[0].addr = load_addr;

      result = safe_symbol_file_add (name, from_tty, addrs, 0, OBJF_SHARED);
      do_cleanups (my_cleanups);
    }

  return result;
}

/* Load DLL symbol info. */
void
dll_symbol_command (char *args, int from_tty)
{
  int n;
  dont_repeat ();

  if (args == NULL)
    error ("dll-symbols requires a file name");

  n = strlen (args);
  if (n > 4 && strcasecmp (args + n - 4, ".dll") != 0)
    {
      char *newargs = (char *) alloca (n + 4 + 1);
      strcpy (newargs, args);
      strcat (newargs, ".dll");
      args = newargs;
    }

  safe_symbol_file_add (args, from_tty, NULL, 0, OBJF_SHARED | OBJF_USERLOADED);
}

/* List currently loaded DLLs. */
void
info_dll_command (char *ignore, int from_tty)
{
  struct so_stuff *so = &solib_start;

  if (!so->next)
    return;

  printf_filtered ("%*s  Load Address\n", -max_dll_name_len, "DLL Name");
  while ((so = so->next) != NULL)
    printf_filtered ("%*s  %08lx\n", -max_dll_name_len, so->name, so->load_addr);

  return;
}

/* Handle DEBUG_STRING output from child process.
   Cygwin prepends its messages with a "cygwin:".  Interpret this as
   a Cygwin signal.  Otherwise just print the string as a warning. */
static int
handle_output_debug_string (struct target_waitstatus *ourstatus)
{
  char *s;
  int gotasig = FALSE;

  if (!target_read_string
    ((CORE_ADDR) current_event.u.DebugString.lpDebugStringData, &s, 1024, 0)
      || !s || !*s)
    return gotasig;

  if (strncmp (s, CYGWIN_SIGNAL_STRING, sizeof (CYGWIN_SIGNAL_STRING) - 1) != 0)
    {
      if (strncmp (s, "cYg", 3) != 0)
	warning ("%s", s);
    }
  else
    {
      char *p;
      int sig = strtol (s + sizeof (CYGWIN_SIGNAL_STRING) - 1, &p, 0);
      gotasig = target_signal_from_host (sig);
      ourstatus->value.sig = gotasig;
      if (gotasig)
	ourstatus->kind = TARGET_WAITKIND_STOPPED;
    }

  xfree (s);
  return gotasig;
}

static int
display_selector (HANDLE thread, DWORD sel)
{
  LDT_ENTRY info;
  if (GetThreadSelectorEntry (thread, sel, &info))
    {
      int base, limit;
      printf_filtered ("0x%03lx: ", sel);
      if (!info.HighWord.Bits.Pres)
	{
	  puts_filtered ("Segment not present\n");
	  return 0;
	}
      base = (info.HighWord.Bits.BaseHi << 24) +
	     (info.HighWord.Bits.BaseMid << 16)
	     + info.BaseLow;
      limit = (info.HighWord.Bits.LimitHi << 16) + info.LimitLow;
      if (info.HighWord.Bits.Granularity)
	limit = (limit << 12) | 0xfff;
      printf_filtered ("base=0x%08x limit=0x%08x", base, limit);
      if (info.HighWord.Bits.Default_Big)
	puts_filtered(" 32-bit ");
      else
	puts_filtered(" 16-bit ");
      switch ((info.HighWord.Bits.Type & 0xf) >> 1)
	{
	case 0:
	  puts_filtered ("Data (Read-Only, Exp-up");
	  break;
	case 1:
	  puts_filtered ("Data (Read/Write, Exp-up");
	  break;
	case 2:
	  puts_filtered ("Unused segment (");
	  break;
	case 3:
	  puts_filtered ("Data (Read/Write, Exp-down");
	  break;
	case 4:
	  puts_filtered ("Code (Exec-Only, N.Conf");
	  break;
	case 5:
	  puts_filtered ("Code (Exec/Read, N.Conf");
	  break;
	case 6:
	  puts_filtered ("Code (Exec-Only, Conf");
	  break;
	case 7:
	  puts_filtered ("Code (Exec/Read, Conf");
	  break;
	default:
	  printf_filtered ("Unknown type 0x%x",info.HighWord.Bits.Type);
	}
      if ((info.HighWord.Bits.Type & 0x1) == 0)
	puts_filtered(", N.Acc");
      puts_filtered (")\n");
      if ((info.HighWord.Bits.Type & 0x10) == 0)
	puts_filtered("System selector ");
      printf_filtered ("Priviledge level = %d. ", info.HighWord.Bits.Dpl);
      if (info.HighWord.Bits.Granularity)
	puts_filtered ("Page granular.\n");
      else
	puts_filtered ("Byte granular.\n");
      return 1;
    }
  else
    {
      printf_filtered ("Invalid selector 0x%lx.\n",sel);
      return 0;
    }
}

static void
display_selectors (char * args, int from_tty)
{
  if (!current_thread)
    {
      puts_filtered ("Impossible to display selectors now.\n");
      return;
    }
  if (!args)
    {

      puts_filtered ("Selector $cs\n");
      display_selector (current_thread->h,
	current_thread->context.SegCs);
      puts_filtered ("Selector $ds\n");
      display_selector (current_thread->h,
	current_thread->context.SegDs);
      puts_filtered ("Selector $es\n");
      display_selector (current_thread->h,
	current_thread->context.SegEs);
      puts_filtered ("Selector $ss\n");
      display_selector (current_thread->h,
	current_thread->context.SegSs);
      puts_filtered ("Selector $fs\n");
      display_selector (current_thread->h,
	current_thread->context.SegFs);
      puts_filtered ("Selector $gs\n");
      display_selector (current_thread->h,
	current_thread->context.SegGs);
    }
  else
    {
      int sel;
      sel = parse_and_eval_long (args);
      printf_filtered ("Selector \"%s\"\n",args);
      display_selector (current_thread->h, sel);
    }
}

static struct cmd_list_element *info_w32_cmdlist = NULL;

static void
info_w32_command (char *args, int from_tty)
{
  help_list (info_w32_cmdlist, "info w32 ", class_info, gdb_stdout);
}


#define DEBUG_EXCEPTION_SIMPLE(x)       if (debug_exceptions) \
  printf_unfiltered ("gdb: Target exception %s at 0x%08lx\n", x, \
  (DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress)

static int
handle_exception (struct target_waitstatus *ourstatus)
{
  thread_info *th;
  DWORD code = current_event.u.Exception.ExceptionRecord.ExceptionCode;

  ourstatus->kind = TARGET_WAITKIND_STOPPED;

  /* Record the context of the current thread */
  th = thread_rec (current_event.dwThreadId, -1);

  switch (code)
    {
    case EXCEPTION_ACCESS_VIOLATION:
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ACCESS_VIOLATION");
      ourstatus->value.sig = TARGET_SIGNAL_SEGV;
      break;
    case STATUS_STACK_OVERFLOW:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_STACK_OVERFLOW");
      ourstatus->value.sig = TARGET_SIGNAL_SEGV;
      break;
    case STATUS_FLOAT_DENORMAL_OPERAND:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DENORMAL_OPERAND");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
    case EXCEPTION_ARRAY_BOUNDS_EXCEEDED:
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ARRAY_BOUNDS_EXCEEDED");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
    case STATUS_FLOAT_INEXACT_RESULT:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INEXACT_RESULT");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
    case STATUS_FLOAT_INVALID_OPERATION:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_INVALID_OPERATION");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
    case STATUS_FLOAT_OVERFLOW:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_OVERFLOW");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
    case STATUS_FLOAT_STACK_CHECK:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_STACK_CHECK");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
    case STATUS_FLOAT_UNDERFLOW:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_UNDERFLOW");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
    case STATUS_FLOAT_DIVIDE_BY_ZERO:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_FLOAT_DIVIDE_BY_ZERO");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
    case STATUS_INTEGER_DIVIDE_BY_ZERO:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_DIVIDE_BY_ZERO");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
    case STATUS_INTEGER_OVERFLOW:
      DEBUG_EXCEPTION_SIMPLE ("STATUS_INTEGER_OVERFLOW");
      ourstatus->value.sig = TARGET_SIGNAL_FPE;
      break;
    case EXCEPTION_BREAKPOINT:
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_BREAKPOINT");
      ourstatus->value.sig = TARGET_SIGNAL_TRAP;
      break;
    case DBG_CONTROL_C:
      DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_C");
      ourstatus->value.sig = TARGET_SIGNAL_INT;
      break;
    case DBG_CONTROL_BREAK:
      DEBUG_EXCEPTION_SIMPLE ("DBG_CONTROL_BREAK");
      ourstatus->value.sig = TARGET_SIGNAL_INT;
      break;
    case EXCEPTION_SINGLE_STEP:
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_SINGLE_STEP");
      ourstatus->value.sig = TARGET_SIGNAL_TRAP;
      break;
    case EXCEPTION_ILLEGAL_INSTRUCTION:
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_ILLEGAL_INSTRUCTION");
      ourstatus->value.sig = TARGET_SIGNAL_ILL;
      break;
    case EXCEPTION_PRIV_INSTRUCTION:
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_PRIV_INSTRUCTION");
      ourstatus->value.sig = TARGET_SIGNAL_ILL;
      break;
    case EXCEPTION_NONCONTINUABLE_EXCEPTION:
      DEBUG_EXCEPTION_SIMPLE ("EXCEPTION_NONCONTINUABLE_EXCEPTION");
      ourstatus->value.sig = TARGET_SIGNAL_ILL;
      break;
    default:
      if (current_event.u.Exception.dwFirstChance)
	return 0;
      printf_unfiltered ("gdb: unknown target exception 0x%08lx at 0x%08lx\n",
		    current_event.u.Exception.ExceptionRecord.ExceptionCode,
	(DWORD) current_event.u.Exception.ExceptionRecord.ExceptionAddress);
      ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
      break;