+# Copyright (c) 1999-2001 by Red Hat, Inc. All rights reserved.
+#
+# 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
+
dnl Process this file with autoconf to produce configure.
-AC_INIT(gc_mark.h)
+AC_INIT(gcj_mlc.c)
-dnl Can't be done in BOEHM_CONFIGURE because that confuses automake.
-AC_CONFIG_AUX_DIR(..)
+dnl Can't be done in GC_CONFIGURE because that confuses automake.
+AC_CONFIG_AUX_DIR(.)
-AC_CANONICAL_SYSTEM
+GC_CONFIGURE(.)
-BOEHM_CONFIGURE(.)
+AM_PROG_LIBTOOL
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])
+[ --with-target-subdir=SUBDIR
+ configuring with a cross compiler])
AC_ARG_WITH(cross-host,
-[ --with-cross-host=HOST Configuring with a cross compiler])
+[ --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
+if false; then
+ # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands
+ # to nothing, so nothing would remain between `then' and `fi' if it
+ # were not for the `:' below.
+ :
+ AC_EXEEXT
fi
-AC_MSG_CHECKING([for threads package to use])
-AC_ARG_ENABLE(threads, [ --enable-threads=TYPE choose threading package],
- THREADS=$enableval,
- dnl FIXME: figure out native threads to use here.
- THREADS=no)
-
-if test "$THREADS" = yes; then
- case "$host" in
- *-*-vxworks*)
- THREADS=vxworks
- ;;
- *-*-linux*)
- # FIXME: this isn't correct in all cases.
- THREADS=posix
- ;;
- *-*-win*)
- THREADS=win32
- ;;
- *-*-irix*)
- THREADS=irix
- ;;
- *-*-solaris*)
- # FIXME: for now, choose POSIX, because we implement that.
- # Later, choose solaris threads.
- THREADS=posix
- ;;
- *)
- # For now.
- THREADS=none
- ;;
- esac
+AC_MSG_CHECKING([for thread model used by GCC])
+THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
+if test -z "$THREADS"; then
+ THREADS=no
fi
+AC_MSG_RESULT([$THREADS])
+
+AC_ARG_ENABLE(parallel-mark,
+[ --enable-parallel-mark parallelize marking and free list construction],
+ [case "$THREADS" in
+ no | none | single)
+ AC_MSG_ERROR([Parallel mark requires --enable-threads=x spec])
+ ;;
+ esac]
+)
-INCLUDES=
+INCLUDES=-I${srcdir}/include
+THREADLIBS=
case "$THREADS" in
no | none | single)
THREADS=none
;;
posix | pthreads)
THREADS=posix
+ THREADLIBS=-lpthread
case "$host" in
+ x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux*)
+ AC_DEFINE(GC_LINUX_THREADS)
+ AC_DEFINE(_REENTRANT)
+ if test "${enable_parallel_mark}"; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ ;;
*-*-linux*)
- AC_DEFINE(LINUX_THREADS)
+ AC_DEFINE(GC_LINUX_THREADS)
AC_DEFINE(_REENTRANT)
;;
+ *-*-hpux*)
+ AC_MSG_WARN("Only HP/UX 11 threads are supported.")
+ AC_DEFINE(GC_HPUX_THREADS)
+ AC_DEFINE(_POSIX_C_SOURCE,199506L)
+ if test "${enable_parallel_mark}" = yes; then
+ AC_DEFINE(PARALLEL_MARK)
+ fi
+ AC_DEFINE(THREAD_LOCAL_ALLOC)
+ THREADLIBS="-lpthread -lrt"
+ ;;
+ *-*-freebsd*)
+ AC_MSG_WARN("Threaded GC is prone to deadlock before FreeBSD 4.5.")
+ AC_MSG_WARN("Related symptom is pthread_join returns spurious EINTR.")
+ AC_DEFINE(GC_FREEBSD_THREADS)
+ INCLUDES="$INCLUDES -pthread"
+ THREADLIBS=-pthread
+ ;;
*-*-solaris*)
- AC_DEFINE(SOLARIS_THREADS)
- AC_DEFINE(_SOLARIS_PTHREADS)
+ AC_DEFINE(GC_SOLARIS_THREADS)
+ AC_DEFINE(GC_SOLARIS_PTHREADS)
+ ;;
+ *-*-irix*)
+ AC_DEFINE(GC_IRIX_THREADS)
+ ;;
+ *-*-cygwin*)
+ THREADLIBS=
;;
esac
;;
- qt)
- AC_DEFINE(QUICK_THREADS)
- INCLUDES="-I${boehm_gc_basedir}/../qthreads"
- ;;
decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks)
AC_MSG_ERROR(thread package $THREADS not yet supported)
;;
AC_MSG_ERROR($THREADS is an unknown thread package)
;;
esac
-AC_MSG_RESULT($THREADS)
-
-AC_ARG_ENABLE(java-gc,
-changequote(<<,>>)dnl
-<< --enable-java-gc=TYPE choose garbage collector [boehm]>>,
-changequote([,])
- GC=$enableval,
- GC=boehm)
-target_all=
-if test "$GC" = "boehm"; then
- target_all=libgcjgc.a
-fi
+AC_SUBST(THREADLIBS)
+
+AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")
+AC_SUBST(EXTRA_TEST_LIBS)
+
+target_all=libgcjgc.la
AC_SUBST(target_all)
dnl If the target is an eCos system, use the appropriate eCos
dnl system; at present there is no eCos target.
TARGET_ECOS="no"
AC_ARG_WITH(ecos,
-[ --with-ecos Enable runtime eCos target support.],
+[ --with-ecos enable runtime eCos target support],
TARGET_ECOS="$with_ecos"
)
*)
AC_DEFINE(ECOS)
CXXINCLUDES="-I${TARGET_ECOS}/include"
- addobjs="$addobjs ecos.o"
+ addobjs="$addobjs ecos.lo"
;;
esac
AC_SUBST(CXX)
machdep=
case "$host" in
+ alpha*-*-*)
+ machdep="alpha_mach_dep.lo"
+ ;;
+ alpha-*-openbsd*)
+ if test x"${ac_cv_lib_dl_dlopen}" != xyes ; then
+ AC_MSG_WARN(OpenBSD/Alpha without dlopen(). Shared library support is disabled)
+ AM_DISABLE_SHARED
+ fi
+ ;;
+ i?86-*-solaris2.[[89]]*)
+ AC_DEFINE(SOLARIS25_PROC_VDB_BUG_FIXED)
+ ;;
mipstx39-*-elf*)
- machdep="mips_ultrix_mach_dep.o"
+ machdep="mips_ultrix_mach_dep.lo"
AC_DEFINE(STACKBASE, __stackbase)
AC_DEFINE(DATASTART_IS_ETEXT)
;;
+ mips-dec-ultrix*)
+ machdep="mips_ultrix_mach-dep.lo"
+ ;;
+ mips-*-*)
+ machdep="mips_sgi_mach_dep.lo"
+ AC_DEFINE(NO_EXECUTE_PERMISSION)
+ ;;
sparc-sun-solaris2.3*)
AC_DEFINE(SUNOS53_SHARED_LIB)
;;
+ ia64-*-hpux*)
+ machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
+ ;;
esac
if test x"$machdep" = x; then
- machdep="mach_dep.o"
+ machdep="mach_dep.lo"
fi
addobjs="$addobjs $machdep"
AC_SUBST(addobjs)
MY_CFLAGS="$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(NO_DEBUGGING)
-AC_DEFINE(JAVA_FINALIZATION)
+AC_DEFINE(NO_EXECUTE_PERMISSION)
+AC_DEFINE(ALL_INTERIOR_POINTERS)
-dnl Create boehm-config.h so that libjava can find it.
-dnl It is required to use gc_priv.h, which is required to write
-dnl a new marking function. So config.h in this package is
-dnl poorly named.
-AC_LINK_FILES(config.h, boehm-config.h)
+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.
AC_DEFINE(NO_SIGSET)
AC_DEFINE(NO_CLOCK)
AC_DEFINE(SMALL_CONFIG)
+ AC_DEFINE(NO_DEBUGGING)
fi
+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 $host in
+ x86-*-linux* | i586-*-linux* | i686-*-linux* )
+ AC_MSG_WARN("Client must not use -fomit-frame-pointer.")
+ AC_DEFINE(SAVE_CALL_COUNT, 8)
+ ;;
+ esac ]
+ fi)
+
+AM_CONDITIONAL(USE_LIBDIR, test -z "$with_cross_host")
+
if test "${multilib}" = "yes"; then
multilib_arg="--enable-multilib"
else
multilib_arg=
fi
-AC_OUTPUT(Makefile,
-[
-dnl Put all the -D options in a file. These are required before
-dnl boehm-config.h can be included. This is a huge hack brought
-dnl about by overall poor structuring of this entire library.
+AC_OUTPUT(Makefile include/Makefile, [
+dnl Put all the -D options in a file.
echo "$DEFS" > boehm-cflags
if test -n "$CONFIG_FILES"; then
- ac_file=Makefile . ${boehm_gc_basedir}/../config-ml.in
+ 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="${CC}"
DEFS="$DEFS"
)
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