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binutils-gdb/sim/ppc/configure.ac
Mike Frysinger d73f39ee43 sim: move sim-inline to the common code 
This will allow us to build the common code with the same inline
settings as the arch subdirs, and only do the test once.
2021-06-20 00:12:11 -04:00

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dnl Process this file with autoconf to produce a configure script.
AC_INIT(Makefile.in)
AC_CONFIG_MACRO_DIRS([../.. ../../config])
AC_PROG_INSTALL
AC_PROG_CC
AC_ARG_ENABLE(sim-bitsize,
[ --enable-sim-bitsize=n Specify target bitsize (32 or 64).],
[case "${enableval}" in
32|64) sim_bitsize="-DWITH_TARGET_WORD_BITSIZE=$enableval";;
*) AC_MSG_ERROR("--enable-sim-bitsize was given $enableval. Expected 32 or 64"); sim_bitsize="";;
esac
if test x"$silent" != x"yes" && test x"$sim_bitsize" != x""; then
echo "Setting bitsize flags = $sim_bitsize" 6>&1
fi],[sim_bitsize=""])dnl
AC_ARG_ENABLE(sim-config,
[ --enable-sim-config=file Override default config file],
[case "${enableval}" in
yes|no) AC_MSG_ERROR("No value supplied for --enable-sim-config=file");;
*) if test -f "${srcdir}/${enableval}"; then
sim_config="${enableval}";
elif test -f "${srcdir}/${enableval}-config.h"; then
sim_config="${enableval}-config.h"
else
AC_MSG_ERROR("Config file $enableval was not found");
sim_config=std-config.h
fi;;
esac
if test x"$silent" != x"yes" && test x"$sim_config" != x""; then
echo "Setting config flags = $sim_config" 6>&1
fi],[sim_config="std-config.h"
if test x"$silent" != x"yes"; then
echo "Setting config flags = $sim_config" 6>&1
fi])dnl
AC_ARG_ENABLE(sim-decode-mechanism,
[ --enable-sim-decode-mechanism=which Specify the instruction decode mechanism.],
[case "${enableval}" in
yes|no) AC_MSG_ERROR("No value supplied for --enable-sim-decode-mechanism=file");;
array|switch|padded-switch|goto-switch) sim_decode_mechanism="-T ${enableval}";;
*) AC_MSG_ERROR("File $enableval is not an opcode rules file");
sim_decode_mechanism="switch";;
esac
if test x"$silent" != x"yes" && test x"$sim_decode_mechanism" != x""; then
echo "Setting decode mechanism flags = $sim_decode_mechanism" 6>&1
fi],[sim_decode_mechanism=""
if test x"$silent" != x"yes"; then
echo "Setting decode mechanism flags = $sim_decode_mechanism"
fi])dnl
AC_ARG_ENABLE(sim-default-model,
[ --enable-sim-default-model=which Specify default PowerPC to model.],
[case "${enableval}" in
yes|no) AC_MSG_ERROR("No value supplied for --enable-sim-default-model=model");;
*) sim_default_model="-DWITH_DEFAULT_MODEL=${enableval}";;
esac
if test x"$silent" != x"yes" && test x"$sim_default_model" != x""; then
echo "Setting default-model flags = $sim_default_model" 6>&1
fi],[sim_default_model=""])dnl
AC_ARG_ENABLE(sim-duplicate,
[ --enable-sim-duplicate Expand (duplicate) semantic functions.],
[case "${enableval}" in
yes) sim_dup="-E";;
no) sim_dup="";;
*) AC_MSG_ERROR("--enable-sim-duplicate does not take a value"); sim_dup="";;
esac
if test x"$silent" != x"yes" && test x"$sim_dup" != x""; then
echo "Setting duplicate flags = $sim_dup" 6>&1
fi],[sim_dup="-E"
if test x"$silent" != x"yes"; then
echo "Setting duplicate flags = $sim_dup" 6>&1
fi])dnl
AC_ARG_ENABLE(sim-filter,
[ --enable-sim-filter=rule Specify filter rules.],
[case "${enableval}" in
yes) AC_MSG_ERROR("--enable-sim-filter must be specified with a rule to filter or no"); sim_filter="";;
no) sim_filter="";;
*) sim_filter="-F $enableval";;
esac
if test x"$silent" != x"yes" && test x"$sim_filter" != x""; then
echo "Setting filter flags = $sim_filter" 6>&1
fi],[sim_filter="-F 32,f,o"
if test x"$silent" != x"yes"; then
echo "Setting filter flags = $sim_filter" 6>&1
fi])dnl
AC_ARG_ENABLE(sim-float,
[ --enable-sim-float Specify whether the target has hard, soft, altivec or e500 floating point.],
[case "${enableval}" in
yes | hard) sim_float="-DWITH_FLOATING_POINT=HARD_FLOATING_POINT";;
no | soft) sim_float="-DWITH_FLOATING_POINT=SOFT_FLOATING_POINT";;
altivec) sim_float="-DWITH_ALTIVEC" ; sim_filter="${sim_filter},av" ;;
*spe*|*simd*) sim_float="-DWITH_E500" ; sim_filter="${sim_filter},e500" ;;
*) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-float"); sim_float="";;
esac
if test x"$silent" != x"yes" && test x"$sim_float" != x""; then
echo "Setting float flags = $sim_float" 6>&1
fi],[
case "${target}" in
*altivec*) sim_float="-DWITH_ALTIVEC" ; sim_filter="${sim_filter},av" ;;
*spe*|*simd*) sim_float="-DWITH_E500" ; sim_filter="${sim_filter},e500" ;;
*) sim_float=""
esac
])dnl
AC_CACHE_CHECK([if union semun defined],
ac_cv_HAS_UNION_SEMUN,
[AC_TRY_COMPILE([
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>],
[union semun arg ;],
[ac_cv_has_union_semun="yes"],
[ac_cv_has_union_semun="no"])
AC_MSG_RESULT($ac_cv_has_union_semun)
])
if test "$ac_cv_has_union_semun" = "yes"; then
AC_CACHE_CHECK(whether System V semaphores are supported,
ac_cv_sysv_sem,
[
AC_TRY_RUN(
[
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
int main () {
union semun arg ;
int id=semget(IPC_PRIVATE,1,IPC_CREAT|0400);
if (id == -1)
exit(1);
arg.val = 0; /* avoid implicit type cast to union */
if (semctl(id, 0, IPC_RMID, arg) == -1)
exit(1);
exit(0);
}
],
ac_cv_sysv_sem="yes", ac_cv_sysv_sem="no", :)
])
else # semun is not defined
AC_CACHE_CHECK(whether System V semaphores are supported,
ac_cv_sysv_sem,
[
AC_TRY_RUN(
[
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/sem.h>
union semun {
int val;
struct semid_ds *buf;
ushort *array;
};
int main () {
union semun arg ;
int id=semget(IPC_PRIVATE,1,IPC_CREAT|0400);
if (id == -1)
exit(1);
arg.val = 0; /* avoid implicit type cast to union */
if (semctl(id, 0, IPC_RMID, arg) == -1)
exit(1);
exit(0);
}
],
ac_cv_sysv_sem="yes", ac_cv_sysv_sem="no", :)
])
fi
AC_CACHE_CHECK(whether System V shared memory is supported,
ac_cv_sysv_shm,
[
AC_TRY_RUN([
#include <sys/types.h>
#include <sys/ipc.h>
#include <sys/shm.h>
int main () {
int id=shmget(IPC_PRIVATE,1,IPC_CREAT|0400);
if (id == -1)
exit(1);
if (shmctl(id, IPC_RMID, 0) == -1)
exit(1);
exit(0);
}
],
ac_cv_sysv_shm="yes", ac_cv_sysv_shm="no", :)
])
if test x"$ac_cv_sysv_shm" = x"yes" -a x"$ac_cv_sysv_sem" = x"yes" ; then
sim_sysv_ipc_hw=",sem,shm";
else
sim_sysv_ipc_hw="";
fi
if test x"$ac_cv_has_union_semun" = x"yes" -a x"$ac_cv_sysv_sem" = x"yes" ; then
AC_DEFINE(HAVE_UNION_SEMUN, 1,
[Define if union semun is defined in <sys/sem.h>])
fi
AC_ARG_ENABLE(sim-hardware,
[ --enable-sim-hardware=list Specify the hardware to be included in the build.],
[hardware="cpu,memory,nvram,iobus,htab,disk,trace,register,vm,init,core,pal,com,eeprom,opic,glue,phb,ide${sim_sysv_ipc_hw}"
case "${enableval}" in
yes) ;;
no) AC_MSG_ERROR("List of hardware must be specified for --enable-sim-hardware"); hardware="";;
,*) hardware="${hardware}${enableval}";;
*,) hardware="${enableval}${hardware}";;
*) hardware="${enableval}"'';;
esac
sim_hw_src=`echo $hardware | sed -e 's/,/.c hw_/g' -e 's/^/hw_/' -e s'/$/.c/'`
sim_hw_obj=`echo $sim_hw_src | sed -e 's/\.c/.o/g'`
if test x"$silent" != x"yes" && test x"$hardware" != x""; then
echo "Setting hardware to $sim_hw_src, $sim_hw_obj"
fi],[hardware="cpu,memory,nvram,iobus,htab,disk,trace,register,vm,init,core,pal,com,eeprom,opic,glue,phb,ide${sim_sysv_ipc_hw}"
sim_hw_src=`echo $hardware | sed -e 's/,/.c hw_/g' -e 's/^/hw_/' -e s'/$/.c/'`
sim_hw_obj=`echo $sim_hw_src | sed -e 's/\.c/.o/g'`
if test x"$silent" != x"yes"; then
echo "Setting hardware to $sim_hw_src, $sim_hw_obj"
fi])dnl
AC_ARG_ENABLE(sim-hostbitsize,
[ --enable-sim-hostbitsize=32|64 Specify host bitsize (32 or 64).],
[case "${enableval}" in
32|64) sim_hostbitsize="-DWITH_HOST_WORD_BITSIZE=$enableval";;
*) AC_MSG_ERROR("--enable-sim-hostbitsize was given $enableval. Expected 32 or 64"); sim_hostbitsize="";;
esac
if test x"$silent" != x"yes" && test x"$sim_hostbitsize" != x""; then
echo "Setting hostbitsize flags = $sim_hostbitsize" 6>&1
fi],[sim_hostbitsize=""])dnl
AC_ARG_ENABLE(sim-icache,
[ --enable-sim-icache=size Specify instruction-decode cache size and type.],
[icache="-R"
case "${enableval}" in
yes) icache="1024"; sim_icache="-I $icache";;
no) sim_icache="-R";;
*) icache=1024
sim_icache="-"
for x in `echo "${enableval}" | sed -e "s/,/ /g"`; do
case "$x" in
define) sim_icache="${sim_icache}R";;
semantic) sim_icache="${sim_icache}C";;
insn) sim_icache="${sim_icache}S";;
0*|1*|2*|3*|4*|5*|6*|7*|8*|9*) icache=$x;;
*) AC_MSG_ERROR("Unknown value $x for --enable-sim-icache"); sim_icache="";;
esac
done
sim_icache="${sim_icache}I $icache";;
esac
if test x"$silent" != x"yes" && test x"$icache" != x""; then
echo "Setting instruction cache size to $icache ($sim_icache)"
fi],[sim_icache="-CSRI 1024"
if test x"$silent" != x"yes"; then
echo "Setting instruction cache size to 1024 ($sim_icache)"
fi])dnl
AC_ARG_ENABLE(sim-jump,
[ --enable-sim-jump Jump between semantic code (instead of call/return).],
[case "${enableval}" in
yes) sim_jump="-J";;
no) sim_jump="";;
*) AC_MSG_ERROR("--enable-sim-jump does not take a value"); sim_jump="";;
esac
if test x"$silent" != x"yes" && test x"$sim_jump" != x""; then
echo "Setting jump flag = $sim_jump" 6>&1
fi],[sim_jump=""
if test x"$silent" != x"yes"; then
echo "Setting jump flag = $sim_jump" 6>&1
fi])dnl
AC_ARG_ENABLE(sim-line-nr,
[ --enable-sim-line-nr=opts Generate extra CPP code that references source rather than generated code],
[case "${enableval}" in
yes) sim_line_nr="";;
no) sim_line_nr="-L";;
*) AC_MSG_ERROR("--enable-sim-line-nr does not take a value"); sim_line_nr="";;
esac
if test x"$silent" != x"yes" && test x"$sim_line_nr" != x""; then
echo "Setting warning flags = $sim_line_nr" 6>&1
fi],[sim_line_nr=""])dnl
AC_ARG_ENABLE(sim-model,
[ --enable-sim-model=which Specify PowerPC to model.],
[case "${enableval}" in
yes|no) AC_MSG_ERROR("No value supplied for --enable-sim-model=model");;
*) sim_model="-DWITH_MODEL=${enableval}";;
esac
if test x"$silent" != x"yes" && test x"$sim_model" != x""; then
echo "Setting model flags = $sim_model" 6>&1
fi],[sim_model=""])dnl
AC_ARG_ENABLE(sim-model-issue,
[ --enable-sim-model-issue Specify whether to simulate model specific actions],
[case "${enableval}" in
yes) sim_model_issue="-DWITH_MODEL_ISSUE=MODEL_ISSUE_PROCESS";;
no) sim_model_issue="-DWITH_MODEL_ISSUE=MODEL_ISSUE_IGNORE";;
*) AC_MSG_ERROR("--enable-sim-model-issue does not take a value"); sim_model_issue="";;
esac
if test x"$silent" != x"yes"; then
echo "Setting model-issue flags = $sim_model_issue" 6>&1
fi],[sim_model_issue=""])dnl
AC_ARG_ENABLE(sim-monitor,
[ --enable-sim-monitor=mon Specify whether to enable monitoring events.],
[case "${enableval}" in
yes) sim_monitor="-DWITH_MON='MONITOR_INSTRUCTION_ISSUE | MONITOR_LOAD_STORE_UNIT'";;
no) sim_monitor="-DWITH_MON=0";;
instruction) sim_monitor="-DWITH_MON=MONITOR_INSTRUCTION_ISSUE";;
memory) sim_monitor="-DWITH_MON=MONITOR_LOAD_STORE_UNIT";;
*) AC_MSG_ERROR("Unknown value $enableval passed to --enable-sim-mon");;
esac
if test x"$silent" != x"yes" && test x"$sim_monitor" != x""; then
echo "Setting monitor flags = $sim_monitor" 6>&1
fi],[sim_monitor=""])dnl
AC_ARG_ENABLE(sim-opcode,
[ --enable-sim-opcode=which Override default opcode lookup.],
[case "${enableval}" in
yes|no) AC_MSG_ERROR("No value supplied for --enable-sim-opcode=file");;
*) if test -f "${srcdir}/${enableval}"; then
sim_opcode="${enableval}"
elif test -f "${srcdir}/dc-${enableval}"; then
sim_opcode="dc-${enableval}"
else
AC_MSG_ERROR("File $enableval is not an opcode rules file");
sim_opcode="dc-complex"
fi;;
esac
if test x"$silent" != x"yes" && test x"$sim_opcode" != x""; then
echo "Setting opcode flags = $sim_opcode" 6>&1
fi],[sim_opcode="dc-complex"
if test x"$silent" != x"yes"; then
echo "Setting opcode flags = $sim_opcode"
fi])dnl
AC_ARG_ENABLE(sim-packages,
[ --enable-sim-packages=list Specify the packages to be included in the build.],
[packages=disklabel
case "${enableval}" in
yes) ;;
no) AC_MSG_ERROR("List of packages must be specified for --enable-sim-packages"); packages="";;
,*) packages="${packages}${enableval}";;
*,) packages="${enableval}${packages}";;
*) packages="${enableval}"'';;
esac
sim_pk_src=`echo $packages | sed -e 's/,/.c pk_/g' -e 's/^/pk_/' -e 's/$/.c/'`
sim_pk_obj=`echo $sim_pk_src | sed -e 's/\.c/.o/g'`
if test x"$silent" != x"yes" && test x"$packages" != x""; then
echo "Setting packages to $sim_pk_src, $sim_pk_obj"
fi],[packages=disklabel
sim_pk_src=`echo $packages | sed -e 's/,/.c pk_/g' -e 's/^/pk_/' -e 's/$/.c/'`
sim_pk_obj=`echo $sim_pk_src | sed -e 's/\.c/.o/g'`
if test x"$silent" != x"yes"; then
echo "Setting packages to $sim_pk_src, $sim_pk_obj"
fi])dnl
AC_ARG_ENABLE(sim-reserved-bits,
[ --enable-sim-reserved-bits Specify whether to check reserved bits in instruction.],
[case "${enableval}" in
yes) sim_reserved="-DWITH_RESERVED_BITS=1";;
no) sim_reserved="-DWITH_RESERVED_BITS=0";;
*) AC_MSG_ERROR("--enable-sim-reserved-bits does not take a value"); sim_reserved="";;
esac
if test x"$silent" != x"yes" && test x"$sim_reserved" != x""; then
echo "Setting reserved flags = $sim_reserved" 6>&1
fi],[sim_reserved=""])dnl
AC_ARG_ENABLE(sim-smp,
[ --enable-sim-smp=n Specify number of processors to configure for.],
[case "${enableval}" in
yes) sim_smp="-DWITH_SMP=5" ; sim_igen_smp="-N 5";;
no) sim_smp="-DWITH_SMP=0" ; sim_igen_smp="-N 0";;
*) sim_smp="-DWITH_SMP=$enableval" ; sim_igen_smp="-N $enableval";;
esac
if test x"$silent" != x"yes" && test x"$sim_smp" != x""; then
echo "Setting smp flags = $sim_smp" 6>&1
fi],[sim_smp="-DWITH_SMP=5" ; sim_igen_smp="-N 5"
if test x"$silent" != x"yes"; then
echo "Setting smp flags = $sim_smp" 6>&1
fi])dnl
AC_ARG_ENABLE(sim-switch,
[ --enable-sim-switch Use a switch instead of a table for instruction call.],
[case "${enableval}" in
yes) sim_switch="-s";;
no) sim_switch="";;
*) AC_MSG_ERROR("--enable-sim-switch does not take a value"); sim_switch="";;
esac
if test x"$silent" != x"yes" && test x"$sim_switch" != x""; then
echo "Setting switch flags = $sim_switch" 6>&1
fi],[sim_switch="";
if test x"$silent" != x"yes"; then
echo "Setting switch flags = $sim_switch" 6>&1
fi])dnl
AC_ARG_ENABLE(sim-timebase,
[ --enable-sim-timebase Specify whether the PPC timebase is supported.],
[case "${enableval}" in
yes) sim_timebase="-DWITH_TIME_BASE=1";;
no) sim_timebase="-DWITH_TIME_BASE=0";;
*) AC_MSG_ERROR("--enable-sim-timebase does not take a value"); sim_timebase="";;
esac
if test x"$silent" != x"yes" && test x"$sim_timebase" != x""; then
echo "Setting timebase flags = $sim_timebase" 6>&1
fi],[sim_timebase=""])dnl
AC_ARG_ENABLE(sim-warnings,
[ --enable-sim-warnings=opts Extra CFLAGS for turning on compiler warnings except for idecode.o, semantics.o and psim.o],
[case "${enableval}" in
yes) sim_warnings="-Werror -Wall -Wpointer-arith -Wmissing-prototypes -Wmissing-declarations ";;
no) sim_warnings="-w";;
*) sim_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
esac
if test x"$silent" != x"yes" && test x"$sim_warnings" != x""; then
echo "Setting warning flags = $sim_warnings" 6>&1
fi],[sim_warnings=""])dnl
AC_ARG_ENABLE(sim-xor-endian,
[ --enable-sim-xor-endian=n Specify number bytes involved in PowerPC XOR bi-endian mode (default 8).],
[case "${enableval}" in
yes) sim_xor_endian="-DWITH_XOR_ENDIAN=8";;
no) sim_xor_endian="-DWITH_XOR_ENDIAN=0";;
*) sim_xor_endian="-DWITH_XOR_ENDIAN=$enableval";;
esac
if test x"$silent" != x"yes" && test x"$sim_xor_endian" != x""; then
echo "Setting xor-endian flag = $sim_xor_endian" 6>&1
fi],[sim_xor_endian=""])dnl
case ${host} in
*mingw32*)
AC_DEFINE(USE_WIN32API, 1,
[Define if we should use the Windows API, instead of the
POSIX API. On Windows, we use the Windows API when
building for MinGW, but the POSIX API when building
for Cygwin.])
;;
esac
AC_CONFIG_HEADER(config.h:config.in)
dnl Figure out what type of termio/termios support there is
sim_termio=""
AC_MSG_CHECKING(for struct termios)
AC_CACHE_VAL(ac_cv_termios_struct,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/termios.h>],
[static struct termios x;
x.c_iflag = 0;
x.c_oflag = 0;
x.c_cflag = 0;
x.c_lflag = 0;
x.c_cc[NCCS] = 0;],
ac_cv_termios_struct=yes, ac_cv_termios_struct=no)])
AC_MSG_RESULT($ac_cv_termios_struct)
if test $ac_cv_termios_struct = yes; then
sim_termio="$sim_termio -DHAVE_TERMIOS_STRUCTURE"
fi
if test "$ac_cv_termios_struct" = "yes"; then
AC_MSG_CHECKING(for c_line field in struct termios)
AC_CACHE_VAL(ac_cv_termios_cline,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/termios.h>],
[static struct termios x; x.c_line = 0;],
ac_cv_termios_cline=yes, ac_cv_termios_cline=no)])
AC_MSG_RESULT($ac_cv_termios_cline)
if test $ac_cv_termios_cline = yes; then
sim_termio="$sim_termio -DHAVE_TERMIOS_CLINE"
fi
else
ac_cv_termios_cline=no
fi
if test "$ac_cv_termios_struct" != "yes"; then
AC_MSG_CHECKING(for struct termio)
AC_CACHE_VAL(ac_cv_termio_struct,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/termio.h>],
[static struct termio x;
x.c_iflag = 0;
x.c_oflag = 0;
x.c_cflag = 0;
x.c_lflag = 0;
x.c_cc[NCC] = 0;],
ac_cv_termio_struct=yes, ac_cv_termio_struct=no)])
AC_MSG_RESULT($ac_cv_termio_struct)
if test $ac_cv_termio_struct = yes; then
sim_termio="$sim_termio -DHAVE_TERMIO_STRUCTURE"
fi
else
ac_cv_termio_struct=no
fi
if test "$ac_cv_termio_struct" = "yes"; then
AC_MSG_CHECKING(for c_line field in struct termio)
AC_CACHE_VAL(ac_cv_termio_cline,
[AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/termio.h>],
[static struct termio x; x.c_line = 0;],
ac_cv_termio_cline=yes, ac_cv_termio_cline=no)])
AC_MSG_RESULT($ac_cv_termio_cline)
if test $ac_cv_termio_cline = yes; then
sim_termio="$sim_termio -DHAVE_TERMIO_CLINE"
fi
else
ac_cv_termio_cline=no
fi
dnl Check for struct statfs
AC_MSG_CHECKING(for struct statfs)
AC_CACHE_VAL(ac_cv_struct_statfs,
[AC_TRY_COMPILE([#include <sys/types.h>
#ifdef HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
#ifdef HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
#ifdef HAVE_SYS_STATFS_H
#include <sys/statfs.h>
#endif],
[static struct statfs s;],
ac_cv_struct_statfs=yes, ac_cv_struct_statfs=no)])
AC_MSG_RESULT($ac_cv_struct_statfs)
if test $ac_cv_struct_statfs = yes; then
AC_DEFINE(HAVE_STRUCT_STATFS, 1,
[Define if struct statfs is defined in <sys/mount.h>])
fi
AC_CHECK_TYPES(long long)
dnl Figure out if /dev/zero exists or not
sim_devzero=""
AC_MSG_CHECKING(for /dev/zero)
AC_CACHE_VAL(ac_cv_devzero,
[AC_TRY_RUN([#include <fcntl.h>
main () {
char buf[2048];
int i;
int fd = open ("/dev/zero", O_RDONLY);
if (fd < 0)
return 1;
for (i = 0; i < sizeof (buf); i++)
buf[i] = 1;
if (read (fd, buf, sizeof (buf)) != sizeof (buf))
return 1;
for (i = 0; i < sizeof (buf); i++)
if (buf[i])
return 1;
return 0;
}],[ac_cv_devzero=yes],[ac_cv_devzero=no],[ac_cv_devzero=no])])
AC_MSG_RESULT($ac_cv_devzero)
if test $ac_cv_devzero = yes; then
sim_devzero="-DHAVE_DEVZERO"
else
sim_devzero=""
fi
dnl Figure out if we are in the new Cygnus tree with a common directory or not
AC_MSG_CHECKING(for common simulator directory)
if test -f "${srcdir}/../common/callback.c"; then
AC_MSG_RESULT(yes)
sim_callback="callback.o targ-map.o"
sim_targ_vals="targ-vals.h targ-map.c targ-vals.def"
else
AC_MSG_RESULT(no)
sim_callback=""
sim_targ_vals=""
fi
AC_MSG_CHECKING(for common simulator directory fpu implementation)
if test -f "${srcdir}/../common/sim-fpu.c"; then
AC_MSG_RESULT(yes)
sim_fpu_cflags="-DHAVE_COMMON_FPU -I../common -I${srcdir}/../common"
sim_fpu="sim-fpu.o"
else
AC_MSG_RESULT(no)
sim_fpu_cflags=
sim_fpu=
fi
# Since we run commands on the build system, we have to create a
# separate config header for the build system if build != host.
if test x$host = x$build; then
AC_CONFIG_COMMANDS([build-config.h],[cp config.h build-config.h])
else
tempdir=build.$$
rm -rf $tempdir
mkdir $tempdir
cd $tempdir
case ${srcdir} in
/* | [A-Za-z]:[\\/]* ) realsrcdir=${srcdir};;
*) realsrcdir=../${srcdir};;
esac
saved_CFLAGS="${CFLAGS}"
# 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
CC="${CC_FOR_BUILD}" CFLAGS="${CFLAGS_FOR_BUILD-${CFLAGS}}" \
LDFLAGS="${LDFLAGS_FOR_BUILD}" \
${realsrcdir}/configure \
--enable-languages=${enable_languages-all} \
--target=$target_alias --host=$build_alias --build=$build_alias
CFLAGS="${saved_CFLAGS}"
mv config.h ../build-config.h
cd ..
rm -rf $tempdir
fi
AC_SUBST(sim_warnings)
AC_SUBST(sim_line_nr)
AC_SUBST(sim_config)
AC_SUBST(sim_opcode)
AC_SUBST(sim_switch)
AC_SUBST(sim_dup)
AC_SUBST(sim_decode_mechanism)
AC_SUBST(sim_jump)
AC_SUBST(sim_filter)
AC_SUBST(sim_icache)
AC_SUBST(sim_hw_src)
AC_SUBST(sim_hw_obj)
AC_SUBST(sim_pk_src)
AC_SUBST(sim_pk_obj)
AC_SUBST(sim_xor_endian)
AC_SUBST(sim_smp)
AC_SUBST(sim_igen_smp)
AC_SUBST(sim_bitsize)
AC_SUBST(sim_hostbitsize)
AC_SUBST(sim_timebase)
AC_SUBST(sim_float)
AC_SUBST(sim_reserved)
AC_SUBST(sim_monitor)
AC_SUBST(sim_model)
AC_SUBST(sim_default_model)
AC_SUBST(sim_model_issue)
AC_SUBST(sim_termio)
AC_SUBST(sim_devzero)
AC_SUBST(sim_callback)
AC_SUBST(sim_targ_vals)
AC_SUBST(sim_fpu_cflags)
AC_SUBST(sim_fpu)
AC_OUTPUT(Makefile,
[case x$CONFIG_HEADERS in xconfig.h:config.in) echo > stamp-h ;; esac])
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