Subversion Repositories openrisc_me

# This file contains common code used by all simulators.

#

# common.m4 invokes AC macros used by all simulators and by the common

# directory.  It is intended to be included before any target specific

# stuff.  SIM_AC_OUTPUT is a cover function to AC_OUTPUT to generate

# the Makefile.  It is intended to be invoked last.

#

# The simulator's configure.in should look like:

#

# dnl Process this file with autoconf to produce a configure script.

# AC_PREREQ(2.5)dnl

# AC_INIT(Makefile.in)

# AC_CONFIG_HEADER(config.h:config.in)

#

# sinclude(../common/aclocal.m4)

# sinclude(../common/common.m4)

#

# ... target specific stuff ...

AC_CANONICAL_SYSTEM

AC_ARG_PROGRAM

AC_PROG_CC

AC_PROG_INSTALL

# Put a plausible default for CC_FOR_BUILD in Makefile.

if test "x$cross_compiling" = "xno"; then

  CC_FOR_BUILD='$(CC)'

else

  CC_FOR_BUILD=gcc

fi

AC_SUBST(CC_FOR_BUILD)

AC_SUBST(CFLAGS)

AC_SUBST(HDEFINES)

AR=${AR-ar}

AC_SUBST(AR)

AC_PROG_RANLIB

dnl We don't use gettext, but bfd does.  So we do the appropriate checks

dnl to see if there are intl libraries we should link against.

ALL_LINGUAS=

ZW_GNU_GETTEXT_SISTER_DIR(../../intl)

# Check for common headers.

# FIXME: Seems to me this can cause problems for i386-windows hosts.

# At one point there were hardcoded AC_DEFINE's if ${host} = i386-*-windows*.

AC_CHECK_HEADERS(stdlib.h string.h strings.h unistd.h time.h)

AC_CHECK_HEADERS(sys/time.h sys/resource.h)

AC_CHECK_HEADERS(fcntl.h fpu_control.h)

AC_CHECK_HEADERS(dlfcn.h errno.h sys/stat.h)

AC_CHECK_FUNCS(getrusage time sigaction __setfpucw)

# Check for socket libraries

AC_CHECK_LIB(socket, bind)

AC_CHECK_LIB(nsl, gethostbyname)

# Added from binutils 2.20.1/bfd

#Link in zlib if we can.  This allows us to read compressed debug sections.

# This is used only by compress.c.

AC_SEARCH_LIBS(zlibVersion, z, [AC_CHECK_HEADERS(zlib.h)])

AC_SUBST(LIBS)

. ${srcdir}/../../bfd/configure.host

dnl Standard (and optional) simulator options.

dnl Eventually all simulators will support these.

dnl Do not add any here that cannot be supported by all simulators.

dnl Do not add similar but different options to a particular simulator,

dnl all shall eventually behave the same way.

dnl We don't use automake, but we still want to support

dnl --enable-maintainer-mode.

USE_MAINTAINER_MODE=no

AC_ARG_ENABLE(maintainer-mode,

[  --enable-maintainer-mode             Enable developer functionality.],

[case "${enableval}" in

  yes)  MAINT="" USE_MAINTAINER_MODE=yes ;;

  no)   MAINT="#" ;;

  *)    AC_MSG_ERROR("--enable-maintainer-mode does not take a value"); MAINT="#" ;;

esac

if test x"$silent" != x"yes" && test x"$MAINT" = x""; then

  echo "Setting maintainer mode" 6>&1

fi],[MAINT="#"])dnl

AC_SUBST(MAINT)

dnl This is a generic option to enable special byte swapping

dnl insns on *any* cpu.

AC_ARG_ENABLE(sim-bswap,

[  --enable-sim-bswap                   Use Host specific BSWAP instruction.],

[case "${enableval}" in

  yes)  sim_bswap="-DWITH_BSWAP=1 -DUSE_BSWAP=1";;

  no)   sim_bswap="-DWITH_BSWAP=0";;

  *)    AC_MSG_ERROR("--enable-sim-bswap does not take a value"); sim_bswap="";;

esac

if test x"$silent" != x"yes" && test x"$sim_bswap" != x""; then

  echo "Setting bswap flags = $sim_bswap" 6>&1

fi],[sim_bswap=""])dnl

AC_SUBST(sim_bswap)

AC_ARG_ENABLE(sim-cflags,

[  --enable-sim-cflags=opts             Extra CFLAGS for use in building simulator],

[case "${enableval}" in

  yes)   sim_cflags="-O2 -fomit-frame-pointer";;

  trace) AC_MSG_ERROR("Please use --enable-sim-debug instead."); sim_cflags="";;

  no)    sim_cflags="";;

  *)     sim_cflags=`echo "${enableval}" | sed -e "s/,/ /g"`;;

esac

if test x"$silent" != x"yes" && test x"$sim_cflags" != x""; then

  echo "Setting sim cflags = $sim_cflags" 6>&1

fi],[sim_cflags=""])dnl

AC_SUBST(sim_cflags)

dnl --enable-sim-debug is for developers of the simulator

dnl the allowable values are work-in-progress

AC_ARG_ENABLE(sim-debug,

[  --enable-sim-debug=opts              Enable debugging flags],

[case "${enableval}" in

  yes) sim_debug="-DDEBUG=7 -DWITH_DEBUG=7";;

  no)  sim_debug="-DDEBUG=0 -DWITH_DEBUG=0";;

  *)   sim_debug="-DDEBUG='(${enableval})' -DWITH_DEBUG='(${enableval})'";;

esac

if test x"$silent" != x"yes" && test x"$sim_debug" != x""; then

  echo "Setting sim debug = $sim_debug" 6>&1

fi],[sim_debug=""])dnl

AC_SUBST(sim_debug)

dnl --enable-sim-stdio is for users of the simulator

dnl It determines if IO from the program is routed through STDIO (buffered)

AC_ARG_ENABLE(sim-stdio,

[  --enable-sim-stdio                   Specify whether to use stdio for console input/output.],

[case "${enableval}" in

  yes)  sim_stdio="-DWITH_STDIO=DO_USE_STDIO";;

  no)   sim_stdio="-DWITH_STDIO=DONT_USE_STDIO";;

  *)    AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-stdio"); sim_stdio="";;

esac

if test x"$silent" != x"yes" && test x"$sim_stdio" != x""; then

  echo "Setting stdio flags = $sim_stdio" 6>&1

fi],[sim_stdio=""])dnl

AC_SUBST(sim_stdio)

dnl --enable-sim-trace is for users of the simulator

dnl The argument is either a bitmask of things to enable [exactly what is

dnl up to the simulator], or is a comma separated list of names of tracing

dnl elements to enable.  The latter is only supported on simulators that

dnl use WITH_TRACE.

AC_ARG_ENABLE(sim-trace,

[  --enable-sim-trace=opts              Enable tracing flags],

[case "${enableval}" in

  yes)  sim_trace="-DTRACE=1 -DWITH_TRACE=-1";;

  no)   sim_trace="-DTRACE=0 -DWITH_TRACE=0";;

  [[-0-9]]*)

        sim_trace="-DTRACE='(${enableval})' -DWITH_TRACE='(${enableval})'";;

  [[a-z]]*)

        sim_trace=""

        for x in `echo "$enableval" | sed -e "s/,/ /g"`; do

          if test x"$sim_trace" = x; then

            sim_trace="-DWITH_TRACE='(TRACE_$x"

          else

            sim_trace="${sim_trace}|TRACE_$x"

          fi

        done

        sim_trace="$sim_trace)'" ;;

esac

if test x"$silent" != x"yes" && test x"$sim_trace" != x""; then

  echo "Setting sim trace = $sim_trace" 6>&1

fi],[sim_trace=""])dnl

AC_SUBST(sim_trace)

dnl --enable-sim-profile

dnl The argument is either a bitmask of things to enable [exactly what is

dnl up to the simulator], or is a comma separated list of names of profiling

dnl elements to enable.  The latter is only supported on simulators that

dnl use WITH_PROFILE.

AC_ARG_ENABLE(sim-profile,

[  --enable-sim-profile=opts            Enable profiling flags],

[case "${enableval}" in

  yes)  sim_profile="-DPROFILE=1 -DWITH_PROFILE=-1";;

  no)   sim_profile="-DPROFILE=0 -DWITH_PROFILE=0";;

  [[-0-9]]*)

        sim_profile="-DPROFILE='(${enableval})' -DWITH_PROFILE='(${enableval})'";;

  [[a-z]]*)

        sim_profile=""

        for x in `echo "$enableval" | sed -e "s/,/ /g"`; do

          if test x"$sim_profile" = x; then

            sim_profile="-DWITH_PROFILE='(PROFILE_$x"

          else

            sim_profile="${sim_profile}|PROFILE_$x"

          fi

        done

        sim_profile="$sim_profile)'" ;;

esac

if test x"$silent" != x"yes" && test x"$sim_profile" != x""; then

  echo "Setting sim profile = $sim_profile" 6>&1

fi],[sim_profile="-DPROFILE=1 -DWITH_PROFILE=-1"])dnl

AC_SUBST(sim_profile)

dnl Types used by common code

AC_TYPE_SIGNAL

dnl Detect exe extension

AC_EXEEXT

dnl These are available to append to as desired.

sim_link_files=

sim_link_links=

dnl Create tconfig.h either from simulator's tconfig.in or default one

dnl in common.

sim_link_links=tconfig.h

if test -f ${srcdir}/tconfig.in

then

  sim_link_files=tconfig.in

else

  sim_link_files=../common/tconfig.in

fi

# targ-vals.def points to the libc macro description file.

case "${target}" in

*-*-*) TARG_VALS_DEF=../common/nltvals.def ;;

esac

sim_link_files="${sim_link_files} ${TARG_VALS_DEF}"

sim_link_links="${sim_link_links} targ-vals.def"