+# Copyright (c) 1999, 2000, 2001, 2002, 2003 by Red Hat, Inc. All rights reserved.
+# Copyright 2004 Nathanael Nerode
+#
+# THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
+# OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
+#
+# Permission is hereby granted to use or copy this program
+# for any purpose, provided the above notices are retained on all copies.
+# Permission to modify the code and to distribute modified code is granted,
+# provided the above notices are retained, and a notice that the code was
+# modified is included with the above copyright notice.
+#
+# Original author: Tom Tromey
+# Modified by Nathanael Nerode
+
dnl Process this file with autoconf to produce configure.
+AC_PREREQ(2.57)
AC_INIT(gcj_mlc.c)
-BOEHM_CONFIGURE(.)
+# This works around the fact that libtool configuration may change LD
+# for this particular configuration, but some shells, instead of
+# keeping the changes in LD private, export them just because LD is
+# exported.
+ORIGINAL_LD_FOR_MULTILIBS=$LD
+
+dnl Can't be done in GC_CONFIGURE because that confuses automake.
+AC_CONFIG_AUX_DIR(.)
+
+dnl Default to --enable-multilib
+AC_ARG_ENABLE(multilib,
+[ --enable-multilib build many library versions (default)],
+[case "${enableval}" in
+ yes) multilib=yes ;;
+ no) multilib=no ;;
+ *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;;
+ esac], [multilib=yes])dnl
+
+dnl We may get other options which we don't document:
+dnl --with-target-subdir, --with-multisrctop, --with-multisubdir
+
+dnl I needed to add the -n test to allow configuration in src directory - HB
+if test "[$]{srcdir}" = "."; then
+ if test "[$]{with_target_subdir}" != "." -a -n "[$]{with_target_subdir}"; then
+ gc_basedir="[$]{srcdir}/[$]{with_multisrctop}../."
+ else
+ gc_basedir="[$]{srcdir}/[$]{with_multisrctop}."
+ fi
+else
+ gc_basedir="[$]{srcdir}/."
+fi
+AC_SUBST(gc_basedir)
+AC_CONFIG_AUX_DIR($gc_basedir/..)
+if :; then :; else
+ # This overrides the previous occurrence for automake, but not for
+ # autoconf, which is exactly what we want.
+ AC_CONFIG_AUX_DIR(..)
+fi
+
+AC_CANONICAL_SYSTEM
+
+# Get the 'noncanonical' system names.
+sinclude(../config/acx.m4)
+_GCC_TOPLEV_NONCANONICAL_BUILD
+_GCC_TOPLEV_NONCANONICAL_HOST
+_GCC_TOPLEV_NONCANONICAL_TARGET
+
+# This works around an automake problem.
+mkinstalldirs="`cd $ac_aux_dir && ${PWDCMD-pwd}`/mkinstalldirs"
+AC_SUBST(mkinstalldirs)
+
+GC_CONFIGURE(.)
AM_PROG_LIBTOOL
[ --with-cross-host=HOST configuring with a cross compiler])
AM_MAINTAINER_MODE
-# automake wants to see AC_EXEEXT. But we don't need it. And having
-# it is actually a problem, because the compiler we're passed can't
-# necessarily do a full link. So we fool automake here.
-if test "x" = "y"; then
- AC_EXEEXT
-fi
AC_MSG_CHECKING([for thread model used by GCC])
THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
+if test -z "$THREADS"; then
+ THREADS=no
+fi
AC_MSG_RESULT([$THREADS])
-INCLUDES=-I${srcdir}/include
+AC_ARG_ENABLE(parallel-mark,
+[ --enable-parallel-mark parallelize marking and free list construction],
+ [case "$THREADS" in
+ no | none | single)
+ AC_MSG_ERROR([Parallel mark requires --enable-threads=x spec])
+ ;;
+ esac]
+)
+
+INCLUDES="-I`cd $srcdir && ${PWDCMD-pwd}`/include"
THREADLIBS=
case "$THREADS" in
no | none | single)
THREADS=posix
THREADLIBS=-lpthread
case "$host" in
+ x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* | alpha-*-linux*)
+ AC_DEFINE(GC_LINUX_THREADS)
+ AC_DEFINE(_REENTRANT)
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ ;;
*-*-linux*)
- AC_DEFINE(LINUX_THREADS)
+ AC_DEFINE(GC_LINUX_THREADS)
+ AC_DEFINE(_REENTRANT)
+ ;;
+ *-*-aix*)
+ AC_DEFINE(GC_AIX_THREADS)
AC_DEFINE(_REENTRANT)
;;
+ *-*-hpux*)
+ AC_MSG_WARN("Only HP/UX 11 threads are supported.")
+ AC_DEFINE(GC_HPUX_THREADS)
+ AC_DEFINE(_POSIX_C_SOURCE,199506L)
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ THREADLIBS="-lpthread -lrt"
+ ;;
*-*-freebsd*)
AC_MSG_WARN("FreeBSD does not yet fully support threads with Boehm GC.")
- AC_DEFINE(FREEBSD_THREADS)
+ AC_DEFINE(GC_FREEBSD_THREADS)
INCLUDES="$INCLUDES -pthread"
THREADLIBS=-pthread
;;
*-*-solaris*)
- AC_DEFINE(SOLARIS_THREADS)
- AC_DEFINE(_SOLARIS_PTHREADS)
+ AC_DEFINE(GC_SOLARIS_THREADS)
+ AC_DEFINE(GC_SOLARIS_PTHREADS)
;;
*-*-irix*)
- AC_DEFINE(IRIX_THREADS)
+ AC_DEFINE(GC_IRIX_THREADS)
+ ;;
+ *-*-cygwin*)
+ AC_DEFINE(GC_WIN32_THREADS)
+ ;;
+ *-*-darwin*)
+ AC_DEFINE(GC_DARWIN_THREADS)
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ ;;
+ *-*-osf*)
+ AC_DEFINE(GC_OSF1_THREADS)
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ # May want to enable it in other cases, too.
+ # Measurements havent yet been done.
+ fi
+ INCLUDES="$INCLUDES -pthread"
+ THREADLIBS="-lpthread -lrt"
;;
esac
;;
- decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks)
+ win32)
+ AC_DEFINE(GC_WIN32_THREADS)
+ dnl Old wine getenv may not return NULL for missing entry.
+ dnl Define EMPTY_GETENV_RESULTS here to work around the bug.
+ ;;
+ dgux386)
+ THREADS=dgux386
+AC_MSG_RESULT($THREADLIBS)
+ # Use pthread GCC switch
+ THREADLIBS=-pthread
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ AC_DEFINE(GC_DGUX386_THREADS)
+ AC_DEFINE(DGUX_THREADS)
+ # Enable _POSIX4A_DRAFT10_SOURCE with flag -pthread
+ INCLUDES="-pthread $INCLUDES"
+ ;;
+ aix)
+ THREADS=posix
+ THREADLIBS=-lpthread
+ AC_DEFINE(GC_AIX_THREADS)
+ AC_DEFINE(_REENTRANT)
+ ;;
+ decosf1 | irix | mach | os2 | solaris | dce | vxworks)
AC_MSG_ERROR(thread package $THREADS not yet supported)
;;
*)
esac
AC_SUBST(THREADLIBS)
-AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")
+case "$host" in
+ powerpc-*-darwin*)
+ powerpc_darwin=true
+ ;;
+esac
+AM_CONDITIONAL(POWERPC_DARWIN,test x$powerpc_darwin = xtrue)
+
+# We never want libdl on darwin. It is a fake libdl that just ends up making
+# dyld calls anyway
+case "$host" in
+ *-*-darwin*) ;;
+ *)
+ AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")
+ ;;
+esac
+
AC_SUBST(EXTRA_TEST_LIBS)
-AC_ARG_ENABLE(java-gc,
-changequote(<<,>>)dnl
-<< --enable-java-gc=TYPE choose garbage collector [boehm]>>,
-changequote([,])
- GC=$enableval,
- GC=boehm)
-target_all=
-if test "$GC" = "boehm"; then
- target_all=libgcjgc.la
-fi
+target_all=libgcjgc.la
AC_SUBST(target_all)
+AC_SUBST(target_noncanonical)
dnl If the target is an eCos system, use the appropriate eCos
dnl I/O routines.
)
addobjs=
+addlibs=
+addincludes=
+addtests=
CXXINCLUDES=
case "$TARGET_ECOS" in
no)
addobjs="$addobjs ecos.lo"
;;
esac
+
+if test "${enable_cplusplus}" = yes; then
+ addincludes="$addincludes include/gc_cpp.h include/gc_allocator.h"
+ addtests="$addtests test_cpp"
+fi
+
+AM_CONDITIONAL(CPLUSPLUS, test "${enable_cplusplus}" = yes)
+
AC_SUBST(CXX)
AC_SUBST(INCLUDES)
AC_SUBST(CXXINCLUDES)
+# Configuration of shared libraries
+#
+AC_MSG_CHECKING(whether to build shared libraries)
+AC_ENABLE_SHARED
+
+case "$host" in
+ alpha-*-openbsd*)
+ enable_shared=no
+ AC_MSG_RESULT(no)
+ ;;
+ *)
+ AC_MSG_RESULT(yes)
+ ;;
+esac
+
+# Configuration of machine-dependent code
+#
+# We don't set NO_EXECUTE_PERMISSION by default because gcj (and
+# anything else that creates trampolines in gc-allocated memory)
+# always needs exec permission. The exceptions to this are IA-64 and
+# some variations of Power PC, where trampolines don't contain
+# executable code.
+#
+AC_MSG_CHECKING(which machine-dependent code should be used)
machdep=
case "$host" in
-# alpha_mach_dep.s assumes that pointers are not saved in fp registers.
-# Gcc on a 21264 can spill pointers to fp registers. Oops.
-# alpha*-*-*)
-# machdep="alpha_mach_dep.lo"
-# ;;
+ alpha*-*-openbsd*)
+ machdep="alpha_mach_dep.lo"
+ if test x"${ac_cv_lib_dl_dlopen}" != xyes ; then
+ AC_MSG_WARN(OpenBSD/Alpha without dlopen(). Shared library support is disabled)
+ fi
+ ;;
+ alpha*-*-linux*)
+ machdep="alpha_mach_dep.lo"
+ ;;
+ i?86-*-solaris2.[[89]] | i?86-*-solaris2.1?)
+ AC_DEFINE(SOLARIS25_PROC_VDB_BUG_FIXED)
+ ;;
mipstx39-*-elf*)
machdep="mips_ultrix_mach_dep.lo"
AC_DEFINE(STACKBASE, __stackbase)
mips-dec-ultrix*)
machdep="mips_ultrix_mach-dep.lo"
;;
+ mips-nec-sysv*|mips-unknown-sysv*)
+ ;;
+ mips*-*-linux*)
+ ;;
mips-*-*)
machdep="mips_sgi_mach_dep.lo"
- AC_DEFINE(NO_EXECUTE_PERMISSION)
;;
- sparc-sun-solaris2.3*)
+ sparc-*-netbsd*)
+ machdep="sparc_netbsd_mach_dep.lo"
+ ;;
+ sparc-sun-solaris2.3)
+ machdep="sparc_mach_dep.lo"
AC_DEFINE(SUNOS53_SHARED_LIB)
;;
+ sparc-sun-solaris2.*)
+ machdep="sparc_mach_dep.lo"
+ ;;
+ ia64-*-*)
+ AC_DEFINE(NO_EXECUTE_PERMISSION)
+ machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
+ ;;
esac
if test x"$machdep" = x; then
+AC_MSG_RESULT($machdep)
machdep="mach_dep.lo"
fi
addobjs="$addobjs $machdep"
AC_SUBST(addobjs)
+AC_SUBST(addincludes)
+AC_SUBST(addlibs)
+AC_SUBST(addtests)
+
+AC_PROG_LIBTOOL
+
+#
+# Check for AViiON Machines running DGUX
+#
+AC_MSG_CHECKING(if host is AViiON running DGUX)
+ac_is_dgux=no
+AC_CHECK_HEADER(sys/dg_sys_info.h,
+[ac_is_dgux=yes;])
+
+AC_MSG_RESULT($ac_is_dgux)
+ ## :GOTCHA: we do not check anything but sys/dg_sys_info.h
+if test $ac_is_dgux = yes; then
+ if test "$enable_full_debug" = "yes"; then
+ CFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
+ CXXFLAGS="-g -mstandard -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
+ else
+ CFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
+ CXXFLAGS="-DDGUX -D_DGUX_SOURCE -Di386 -mno-legend -O2"
+ fi
+ AC_SUBST(CFLAGS)
+ AC_SUBST(CXXFLAGS)
+fi
+
+dnl We use these options to decide which functions to include.
+AC_ARG_WITH(target-subdir,
+[ --with-target-subdir=SUBDIR
+ configuring with a cross compiler])
+AC_ARG_WITH(cross-host,
+[ --with-cross-host=HOST configuring with a cross compiler])
dnl As of 4.13a2, the collector will not properly work on Solaris when
dnl built with gcc and -O. So we remove -O in the appropriate case.
+dnl
+AC_MSG_CHECKING(whether Solaris gcc optimization fix is necessary)
case "$host" in
- sparc-sun-solaris2*)
+ sparc-sun-solaris2*|*aix*)
if test "$GCC" = yes; then
+ AC_MSG_RESULT(yes)
new_CFLAGS=
for i in $CFLAGS; do
case "$i" in
esac
done
CFLAGS="$new_CFLAGS"
+ else
+ AC_MSG_RESULT(no)
fi
;;
+ *) AC_MSG_RESULT(no) ;;
esac
dnl We need to override the top-level CFLAGS. This is how we do it.
MY_CFLAGS="$CFLAGS"
AC_SUBST(MY_CFLAGS)
-dnl Define a few things to retarget the library towards
-dnl embedded Java.
+dnl Include defines that have become de facto standard.
+dnl ALL_INTERIOR_POINTERS can be overridden in startup code.
AC_DEFINE(SILENT)
AC_DEFINE(NO_SIGNALS)
+AC_DEFINE(ALL_INTERIOR_POINTERS)
+
+dnl By default, make the library as general as possible.
AC_DEFINE(JAVA_FINALIZATION)
AC_DEFINE(GC_GCJ_SUPPORT)
+AC_DEFINE(ATOMIC_UNCOLLECTABLE)
dnl This is something of a hack. When cross-compiling we turn off
-dnl some functionality. We also enable the "small" configuration.
-dnl These is only correct when targetting an embedded system. FIXME.
+dnl some functionality. These is only correct when targetting an
+dnl embedded system. FIXME.
if test -n "${with_cross_host}"; then
AC_DEFINE(NO_SIGSET)
- AC_DEFINE(NO_CLOCK)
- AC_DEFINE(SMALL_CONFIG)
AC_DEFINE(NO_DEBUGGING)
fi
-AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
+AC_ARG_ENABLE(full-debug,
+[ --enable-full-debug include full support for pointer backtracing etc.],
+[ if test "$enable_full_debug" = "yes"; then
+ AC_MSG_WARN("Must define GC_DEBUG and use debug alloc. in clients.")
+ AC_DEFINE(KEEP_BACK_PTRS)
+ AC_DEFINE(DBG_HDRS_ALL)
+ case $host in
+ ia64-*-linux* )
+ AC_DEFINE(MAKE_BACK_GRAPH)
+ ;;
+ x86-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* )
+ AC_DEFINE(MAKE_BACK_GRAPH)
+ AC_MSG_WARN("Client must not use -fomit-frame-pointer.")
+ AC_DEFINE(SAVE_CALL_COUNT, 8)
+ ;;
+ i[3456]86-*-dgux*)
+ AC_DEFINE(MAKE_BACK_GRAPH)
+ ;;
+ esac ]
+ fi)
+
+if test -n "$with_cross_host" &&
+ test x"$with_cross_host" != x"no"; then
+ toolexecdir='$(exec_prefix)/$(target_noncanonical)'
+ toolexeclibdir='$(toolexecdir)/lib'
+else
+ toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)'
+ toolexeclibdir='$(libdir)'
+fi
+multi_os_directory=`$CC -print-multi-os-directory`
+case $multi_os_directory in
+ .) ;; # Avoid trailing /.
+ *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
+esac
+AC_SUBST(toolexecdir)
+AC_SUBST(toolexeclibdir)
if test "${multilib}" = "yes"; then
multilib_arg="--enable-multilib"
multilib_arg=
fi
-AC_OUTPUT(Makefile,
-[
-dnl Put all the -D options in a file. These are required before
-dnl boehm-config.h can be included. This is a huge hack brought
-dnl about by overall poor structuring of this entire library.
-echo "$DEFS" > boehm-cflags
+AC_OUTPUT(Makefile include/Makefile, [
+dnl Put all the -I and -D options in a file.
+echo "$INCLUDES $DEFS" > boehm-cflags
if test -n "$CONFIG_FILES"; then
- ac_file=Makefile . ${boehm_gc_basedir}/../config-ml.in
+ LD="${ORIGINAL_LD_FOR_MULTILIBS}"
+ ac_file=Makefile . ${gc_basedir}/../config-ml.in
fi],
srcdir=${srcdir}
host=${host}
with_multisubdir=${with_multisubdir}
ac_configure_args="${multilib_arg} ${ac_configure_args}"
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
-boehm_gc_basedir=${boehm_gc_basedir}
+gc_basedir=${gc_basedir}
CC="${CC}"
+ORIGINAL_LD_FOR_MULTILIBS="${ORIGINAL_LD_FOR_MULTILIBS}"
DEFS="$DEFS"
+INCLUDES="$INCLUDES"
)
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