1 # Copyright (c) 1999, 2000, 2001, 2002, 2003, 2006, 2010, 2011 by Red Hat, Inc.
3 # Copyright 2004 Nathanael Nerode
5 # THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
6 # OR IMPLIED. ANY USE IS AT YOUR OWN RISK.
8 # Permission is hereby granted to use or copy this program
9 # for any purpose, provided the above notices are retained on all copies.
10 # Permission to modify the code and to distribute modified code is granted,
11 # provided the above notices are retained, and a notice that the code was
12 # modified is included with the above copyright notice.
14 # Original author: Tom Tromey
15 # Modified by Nathanael Nerode
17 dnl Process this file with autoconf to produce configure.
21 AC_CONFIG_SRCDIR(gcj_mlc.c)
22 # This works around the fact that libtool configuration may change LD
23 # for this particular configuration, but some shells, instead of
24 # keeping the changes in LD private, export them just because LD is
26 ORIGINAL_LD_FOR_MULTILIBS=$LD
28 AM_ENABLE_MULTILIB(, ..)
33 # Get the 'noncanonical' system names.
34 ACX_NONCANONICAL_TARGET
36 # This works around an automake problem.
37 mkinstalldirs="`cd $ac_aux_dir && ${PWDCMD-pwd}`/mkinstalldirs"
38 AC_SUBST(mkinstalldirs)
40 AM_INIT_AUTOMAKE(gc, 6.6, no-define)
42 # The autoconf 2.5x version of the no-executables hack.
45 # Yak. We must force CC and CXX to /not/ be precious variables; otherwise
46 # the wrong, non-multilib-adjusted value will be used in multilibs.
47 # As a side effect, we have to subst CFLAGS and CXXFLAGS ourselves.
49 m4_rename([_AC_ARG_VAR_PRECIOUS],[real_PRECIOUS])
50 m4_define([_AC_ARG_VAR_PRECIOUS],[])
53 m4_rename_force([real_PRECIOUS],[_AC_ARG_VAR_PRECIOUS])
60 # Newer automakes demand CCAS and CCASFLAGS.
62 : ${CCASFLAGS='$(CFLAGS)'}
68 AC_CHECK_TOOL(RANLIB, ranlib, :)
74 . ${srcdir}/configure.host
77 /* | [A-Za-z]:[/\\]*) gc_flagbasedir=${gc_basedir} ;;
78 *) gc_flagbasedir='$(top_builddir)/'${gc_basedir} ;;
81 gc_cflags="${gc_cflags} -Iinclude -I"'$(top_builddir)'"/./targ-include -I${gc_flagbasedir}/libc/include"
84 gc_cflags="${gc_cflags} -I${gc_flagbasedir}/../winsup/include"
88 dnl Add for mingw targets GC_BUILD option
91 gc_cflags="${gc_cflags} -DGC_BUILD=1"
95 dnl gc_cflags="${gc_cflags} -fno-builtin"
97 GC_CFLAGS=${gc_cflags}
102 dnl We use these options to decide which functions to include.
103 AC_ARG_WITH(target-subdir,
104 [ --with-target-subdir=SUBDIR
105 configuring with a cross compiler])
106 AC_ARG_WITH(cross-host,
107 [ --with-cross-host=HOST configuring with a cross compiler])
109 AC_MSG_CHECKING([for thread model used by GCC])
110 THREADS=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'`
111 if test -z "$THREADS"; then
114 AC_MSG_RESULT([$THREADS])
116 AC_ARG_ENABLE(parallel-mark,
117 [ --enable-parallel-mark parallelize marking and free list construction],
120 AC_MSG_ERROR([Parallel mark requires --enable-threads=x spec])
125 AM_CPPFLAGS="-I`cd $srcdir && ${PWDCMD-pwd}`/include"
131 posix | posix95 | pthreads)
135 x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* | alpha-*-linux*)
136 AC_DEFINE(GC_LINUX_THREADS,1,[support for Xavier Leroy's Linux threads])
137 AC_DEFINE(_REENTRANT,1,[Use reentrant code])
138 if test "${enable_parallel_mark}" = yes; then
139 AC_DEFINE(PARALLEL_MARK,1,[allow the marker to run in multiple threads])
141 AC_DEFINE(THREAD_LOCAL_ALLOC,1,[define GC_local_malloc() & GC_local_malloc_atomic()])
144 AC_DEFINE(GC_LINUX_THREADS,1)
145 AC_DEFINE(_REENTRANT,1)
148 AC_DEFINE(GC_AIX_THREADS,1,[support AIX threads])
149 AC_DEFINE(_REENTRANT,1)
152 AC_MSG_WARN("Only HP-UX 11 POSIX threads are supported.")
153 AC_DEFINE(GC_HPUX_THREADS,1,[enables support for HP/UX 11 pthreads])
154 AC_DEFINE(_POSIX_C_SOURCE,199506L,[POSIX version of C Source])
155 if test "${enable_parallel_mark}" = yes; then
156 AC_DEFINE(PARALLEL_MARK,1)
158 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
159 THREADLIBS="-lpthread -lrt"
160 # HPUX needs REENTRANT for the _r calls.
161 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
164 AC_MSG_WARN("Only HP-UX 11 POSIX threads are supported.")
167 AC_DEFINE(GC_FREEBSD_THREADS)
168 INCLUDES="$INCLUDES -pthread"
169 THREADDLLIBS=-pthread
170 AC_DEFINE(_REENTRANT)
171 if test "${enable_parallel_mark}" = yes; then
172 AC_DEFINE(PARALLEL_MARK)
174 AC_DEFINE(THREAD_LOCAL_ALLOC)
175 AC_DEFINE(USE_COMPILER_TLS, 1,[use tls for boehm])
178 AC_MSG_WARN("FreeBSD does not yet fully support threads with Boehm GC.")
179 AC_DEFINE(GC_FREEBSD_THREADS,1,[support FreeBSD threads])
180 AM_CPPFLAGS="$AM_CPPFLAGS -pthread"
184 AC_DEFINE(GC_SOLARIS_PTHREADS,1,[support for Solaris pthreads])
185 # Need to use alternate thread library, otherwise gctest hangs
187 multi_os_directory=`$CC -print-multi-os-directory`
188 THREADLIBS="-L/usr/lib/lwp/$multi_os_directory \
189 -R/usr/lib/lwp/$multi_os_directory -lpthread -lthread -lrt"
192 AC_DEFINE(GC_SOLARIS_PTHREADS,1,[support for Solaris pthreads])
193 # The alternate thread library was only introduced in Solaris 8 and
194 # became the default in Solaris 9, so no need for the special code
196 # nanosleep, sched_yield, and sem_* only live in librt before
198 THREADLIBS="-lpthread -lrt"
201 AC_DEFINE(GC_IRIX_THREADS,1,[support for Irix pthreads])
204 AC_DEFINE(GC_WIN32_THREADS,1,[support for win32 threads])
207 AC_DEFINE(GC_DARWIN_THREADS,1,[support for Mac OS X pthreads])
208 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
209 if test "${enable_parallel_mark}" = yes; then
210 AC_DEFINE(PARALLEL_MARK,1)
214 AC_DEFINE(GC_OSF1_THREADS,1,[support for Tru64 pthreads])
215 if test "${enable_parallel_mark}" = yes; then
216 AC_DEFINE(PARALLEL_MARK,1)
217 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
218 # May want to enable it in other cases, too.
219 # Measurements havent yet been done.
221 AM_CPPFLAGS="$AM_CPPFLAGS -pthread"
222 THREADLIBS="-lpthread -lrt"
227 AC_DEFINE(GC_WIN32_THREADS,1)
228 dnl Old wine getenv may not return NULL for missing entry.
229 dnl Define EMPTY_GETENV_RESULTS here to work around the bug.
233 AC_MSG_RESULT($THREADLIBS)
234 # Use pthread GCC switch
236 if test "${enable_parallel_mark}" = yes; then
237 AC_DEFINE(PARALLEL_MARK,1)
239 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
240 AC_DEFINE(GC_DGUX386_THREADS,1,[support for DB/UX on I386 threads])
241 AC_DEFINE(DGUX_THREADS,1,[No description])
242 # Enable _POSIX4A_DRAFT10_SOURCE with flag -pthread
243 AM_CPPFLAGS="-pthread $AM_CPPFLAGS"
248 AC_DEFINE(GC_AIX_THREADS,1)
249 AC_DEFINE(_REENTRANT,1)
251 decosf1 | irix | mach | os2 | solaris | dce | vxworks)
252 AC_MSG_ERROR(thread package $THREADS not yet supported)
255 AC_MSG_ERROR($THREADS is an unknown thread package)
265 AM_CONDITIONAL(POWERPC_DARWIN,test x$powerpc_darwin = xtrue)
267 # Darwin needs a few extra special tests to deal with variation in the
271 AC_CHECK_MEMBER(ppc_thread_state_t.r0,
272 AC_DEFINE(HAS_PPC_THREAD_STATE_R0,1,
273 [ppc_thread_state_t has field r0]),,
274 [#include <mach/thread_status.h>])
275 AC_CHECK_MEMBER(ppc_thread_state_t.__r0,
276 AC_DEFINE(HAS_PPC_THREAD_STATE___R0,1,dnl
277 [ppc_thread_state_t has field __r0]),,
278 [#include <mach/thread_status.h>])
279 AC_CHECK_MEMBER(ppc_thread_state64_t.r0,
280 AC_DEFINE(HAS_PPC_THREAD_STATE64_R0,1,dnl
281 [ppc_thread_state64_t has field r0]),,
282 [#include <mach/thread_status.h>])
283 AC_CHECK_MEMBER(ppc_thread_state64_t.__r0,
284 AC_DEFINE(HAS_PPC_THREAD_STATE64___R0,1,dnl
285 [ppc_thread_state64_t has field __r0]),,
286 [#include <mach/thread_status.h>])
289 AC_CHECK_MEMBER(x86_thread_state32_t.eax,
290 AC_DEFINE(HAS_X86_THREAD_STATE32_EAX,1,dnl
291 [x86_thread_state32_t has field eax]),,
292 [#include <sys/cdefs.h>
293 #include <mach/thread_status.h>])
294 AC_CHECK_MEMBER(x86_thread_state32_t.__eax,
295 AC_DEFINE(HAS_X86_THREAD_STATE32___EAX,1,dnl
296 [x86_thread_state32_t has field __eax]),,
297 [#include <sys/cdefs.h>
298 #include <mach/thread_status.h>])
301 AC_CHECK_MEMBER(x86_thread_state64_t.rax,
302 AC_DEFINE(HAS_X86_THREAD_STATE64_RAX,1,dnl
303 [x86_thread_state64_t has field rax]),,
304 [#include <sys/cdefs.h>
305 #include <mach/thread_status.h>])
306 AC_CHECK_MEMBER(x86_thread_state64_t.__rax,
307 AC_DEFINE(HAS_X86_THREAD_STATE64___RAX,1,dnl
308 [x86_thread_state64_t has field __rax]),,
309 [#include <sys/cdefs.h>
310 #include <mach/thread_status.h>])
316 # While IRIX 6 has libdl for the O32 and N32 ABIs, it's missing for N64
317 # and unnecessary everywhere.
319 # We never want libdl on darwin. It is a fake libdl that just ends up making
323 AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")
327 # extra LD Flags which are required for targets
330 extra_ldflags_libgc=-Wl,-single_module
333 AC_SUBST(extra_ldflags_libgc)
335 AC_SUBST(EXTRA_TEST_LIBS)
337 target_all=libgcjgc.la
340 dnl If the target is an eCos system, use the appropriate eCos
342 dnl FIXME: this should not be a local option but a global target
343 dnl system; at present there is no eCos target.
346 [ --with-ecos enable runtime eCos target support],
347 TARGET_ECOS="$with_ecos"
354 case "$TARGET_ECOS" in
358 AC_DEFINE(ECOS,1,[Target is ECOS])
359 AM_CPPFLAGS="${AM_CPPFLAGS} -I${TARGET_ECOS}/include"
360 addobjs="$addobjs ecos.lo"
364 if test "${enable_cplusplus}" = yes; then
365 addincludes="$addincludes include/gc_cpp.h include/gc_allocator.h"
366 addtests="$addtests test_cpp"
369 AM_CONDITIONAL(CPLUSPLUS, test "${enable_cplusplus}" = yes)
373 AC_SUBST(AM_CPPFLAGS)
375 # Configuration of shared libraries
377 AC_MSG_CHECKING(whether to build shared libraries)
390 # Checks for pthreads functions
393 LIBS="$LIBS $THREADLIBS"
394 AC_CHECK_FUNCS([pthread_getattr_np])
397 # Configuration of machine-dependent code
399 # Set NO_EXECUTE_PERMISSION by default because gcj already uses
400 # ffi_closure_{alloc,free} which takes care of allocating trampolines
401 # in executable memory.
403 AC_MSG_CHECKING(which machine-dependent code should be used)
407 machdep="alpha_mach_dep.lo"
408 if test x"${ac_cv_lib_dl_dlopen}" != xyes ; then
409 AC_MSG_WARN(OpenBSD/Alpha without dlopen(). Shared library support is disabled)
413 machdep="alpha_mach_dep.lo"
415 i?86-*-solaris2.[[89]] | i?86-*-solaris2.1?)
416 AC_DEFINE(SOLARIS25_PROC_VDB_BUG_FIXED,1,[PROC_VDB in Solaris 2.5 gives wrong values for dirty bits])
419 machdep="mips_ultrix_mach_dep.lo"
420 AC_DEFINE(STACKBASE, __stackbase,[No description])
421 AC_DEFINE(DATASTART_IS_ETEXT,1,[No description])
424 machdep="mips_ultrix_mach-dep.lo"
426 mips-nec-sysv*|mips-unknown-sysv*)
431 machdep="mips_sgi_mach_dep.lo"
434 machdep="sparc_netbsd_mach_dep.lo"
436 sparc-sun-solaris2.3)
437 machdep="sparc_mach_dep.lo"
438 AC_DEFINE(SUNOS53_SHARED_LIB,1,[Avoid Solaris 5.3 dynamic library bug])
440 sparc*-sun-solaris2.*)
441 machdep="sparc_mach_dep.lo"
444 machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
447 AC_DEFINE(NO_EXECUTE_PERMISSION,1,[cause some or all of the heap to not have execute permission])
448 if test x"$machdep" = x; then
449 AC_MSG_RESULT($machdep)
450 machdep="mach_dep.lo"
452 addobjs="$addobjs $machdep"
454 AC_SUBST(addincludes)
459 # Check for AViiON Machines running DGUX
462 AC_CHECK_HEADER(sys/dg_sys_info.h, [ac_is_dgux=yes])
464 AC_MSG_CHECKING(if host is AViiON running DGUX)
465 AC_MSG_RESULT($ac_is_dgux)
466 ## :GOTCHA: we do not check anything but sys/dg_sys_info.h
467 if test $ac_is_dgux = yes; then
468 if test "$enable_full_debug" = "yes"; then
469 GC_CFLAGS="$GC_CFLAGS -mstandard"
471 GC_CFLAGS="$GC_CFLAGS -DDGUX -D_DGUX_SOURCE -Di386 -mno-legend"
474 dnl As of 4.13a2, the collector will not properly work on Solaris when
475 dnl built with gcc and -O. So we remove -O in the appropriate case.
476 dnl Not needed anymore on Solaris.
477 AC_MSG_CHECKING([whether GCC optimization should be disabled])
480 *aix*) test "$GCC" = yes && O0_CFLAGS=-O0 ;;
483 if test x"$O0_CFLAGS" != x; then
488 AC_SUBST([O0_CFLAGS])
490 dnl Include defines that have become de facto standard.
491 dnl ALL_INTERIOR_POINTERS can be overridden in startup code.
492 AC_DEFINE(SILENT,1,[disables statistics printing])
493 AC_DEFINE(NO_SIGNALS,1,[does not disable signals])
494 AC_DEFINE(ALL_INTERIOR_POINTERS,1,[allows all pointers to the interior of objects to be recognized])
496 dnl By default, make the library as general as possible.
497 AC_DEFINE(JAVA_FINALIZATION,1,[make it somewhat safer to finalize objects out of order])
498 AC_DEFINE(GC_GCJ_SUPPORT,1,[include support for gcj])
499 AC_DEFINE(ATOMIC_UNCOLLECTABLE,1,[include code for GC_malloc_atomic_uncollectable])
501 AC_ARG_ENABLE(gc-debug,
502 [ --enable-gc-debug include full support for pointer backtracing etc.],
503 [ if test "$enable_gc_debug" = "yes"; then
504 AC_MSG_WARN("Must define GC_DEBUG and use debug alloc. in clients.")
505 AC_DEFINE(KEEP_BACK_PTRS,1,[Add code to save back pointers])
506 AC_DEFINE(DBG_HDRS_ALL,1,[Make sure that all objects have debug headers])
509 AC_DEFINE(MAKE_BACK_GRAPH,1,[Enable GC_PRINT_BACK_HEIGHT environment variable])
511 x86-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* )
512 AC_DEFINE(MAKE_BACK_GRAPH,1)
513 AC_MSG_WARN("Client must not use -fomit-frame-pointer.")
514 AC_DEFINE(SAVE_CALL_COUNT, 8, [number of call frames saved with objects allocated through the debugging interface])
517 AC_DEFINE(MAKE_BACK_GRAPH,1)
522 if test "${gc_use_mmap}" = "yes"; then
523 AC_DEFINE(USE_MMAP, 1, [use MMAP instead of sbrk to get new memory])
526 if test -n "$with_cross_host" &&
527 test x"$with_cross_host" != x"no"; then
528 toolexecdir='$(exec_prefix)/$(target_noncanonical)'
529 toolexeclibdir='$(toolexecdir)/lib'
531 toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)'
532 toolexeclibdir='$(libdir)'
534 multi_os_directory=`$CC -print-multi-os-directory`
535 case $multi_os_directory in
536 .) ;; # Avoid trailing /.
537 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
539 AC_SUBST(toolexecdir)
540 AC_SUBST(toolexeclibdir)
542 if test "${multilib}" = "yes"; then
543 multilib_arg="--enable-multilib"
548 AC_CONFIG_HEADERS([include/gc_config.h include/gc_ext_config.h])
550 AC_CONFIG_FILES(Makefile include/Makefile threads.mk)