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 && ${PWDCMD-pwd}`/include"
132 posix | posix95 | pthreads)
136 x86-*-linux* | ia64-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* | alpha-*-linux*)
137 AC_DEFINE(GC_LINUX_THREADS,1,[support for Xavier Leroy's Linux threads])
138 AC_DEFINE(_REENTRANT,1,[Use reentrant code])
139 if test "${enable_parallel_mark}" = yes; then
140 AC_DEFINE(PARALLEL_MARK,1,[allow the marker to run in multiple threads])
142 AC_DEFINE(THREAD_LOCAL_ALLOC,1,[define GC_local_malloc() & GC_local_malloc_atomic()])
145 AC_DEFINE(GC_LINUX_THREADS,1)
146 AC_DEFINE(_REENTRANT,1)
149 AC_DEFINE(GC_AIX_THREADS,1,[support AIX threads])
150 AC_DEFINE(_REENTRANT,1)
153 AC_MSG_WARN("Only HP-UX 11 POSIX threads are supported.")
154 AC_DEFINE(GC_HPUX_THREADS,1,[enables support for HP/UX 11 pthreads])
155 AC_DEFINE(_POSIX_C_SOURCE,199506L,[POSIX version of C Source])
156 if test "${enable_parallel_mark}" = yes; then
157 AC_DEFINE(PARALLEL_MARK,1)
159 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
160 THREADLIBS="-lpthread -lrt"
161 # HPUX needs REENTRANT for the _r calls.
162 AC_DEFINE(_REENTRANT, 1, [Required define if using POSIX threads])
165 AC_MSG_WARN("Only HP-UX 11 POSIX threads are supported.")
168 AC_DEFINE(GC_FREEBSD_THREADS)
169 THREADCFLAGS=-pthread
171 AC_DEFINE(_REENTRANT)
172 if test "${enable_parallel_mark}" = yes; then
173 AC_DEFINE(PARALLEL_MARK)
175 AC_DEFINE(THREAD_LOCAL_ALLOC)
176 AC_DEFINE(USE_COMPILER_TLS, 1,[use tls for boehm])
179 AC_MSG_WARN("FreeBSD does not yet fully support threads with Boehm GC.")
180 AC_DEFINE(GC_FREEBSD_THREADS,1,[support FreeBSD threads])
181 THREADCFLAGS=-pthread
185 AC_DEFINE(GC_SOLARIS_PTHREADS,1,[support for Solaris pthreads])
186 # Need to use alternate thread library, otherwise gctest hangs
188 multi_os_directory=`$CC -print-multi-os-directory`
189 THREADLIBS="-L/usr/lib/lwp/$multi_os_directory \
190 -R/usr/lib/lwp/$multi_os_directory -lpthread -lthread -lrt"
193 AC_DEFINE(GC_SOLARIS_PTHREADS,1,[support for Solaris pthreads])
194 # The alternate thread library was only introduced in Solaris 8 and
195 # became the default in Solaris 9, so no need for the special code
197 # nanosleep, sched_yield, and sem_* only live in librt before
199 THREADLIBS="-lpthread -lrt"
202 AC_DEFINE(GC_IRIX_THREADS,1,[support for Irix pthreads])
205 AC_DEFINE(GC_WIN32_THREADS,1,[support for win32 threads])
208 AC_DEFINE(GC_DARWIN_THREADS,1,[support for Mac OS X pthreads])
209 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
210 if test "${enable_parallel_mark}" = yes; then
211 AC_DEFINE(PARALLEL_MARK,1)
215 AC_DEFINE(GC_OSF1_THREADS,1,[support for Tru64 pthreads])
216 if test "${enable_parallel_mark}" = yes; then
217 AC_DEFINE(PARALLEL_MARK,1)
218 AC_DEFINE(THREAD_LOCAL_ALLOC,1)
219 # May want to enable it in other cases, too.
220 # Measurements havent yet been done.
222 THREADCFLAGS=-pthread
223 THREADLIBS="-lpthread -lrt"
228 AC_DEFINE(GC_WIN32_THREADS,1)
229 dnl Old wine getenv may not return NULL for missing entry.
230 dnl Define EMPTY_GETENV_RESULTS here to work around the bug.
235 AC_DEFINE(GC_AIX_THREADS,1)
236 AC_DEFINE(_REENTRANT,1)
239 AC_MSG_ERROR(thread package $THREADS not yet supported)
242 AC_MSG_ERROR($THREADS is an unknown thread package)
245 AC_SUBST(THREADCFLAGS)
253 AM_CONDITIONAL(POWERPC_DARWIN,test x$powerpc_darwin = xtrue)
255 # Darwin needs a few extra special tests to deal with variation in the
259 AC_CHECK_MEMBER(ppc_thread_state_t.r0,
260 AC_DEFINE(HAS_PPC_THREAD_STATE_R0,1,
261 [ppc_thread_state_t has field r0]),,
262 [#include <mach/thread_status.h>])
263 AC_CHECK_MEMBER(ppc_thread_state_t.__r0,
264 AC_DEFINE(HAS_PPC_THREAD_STATE___R0,1,dnl
265 [ppc_thread_state_t has field __r0]),,
266 [#include <mach/thread_status.h>])
267 AC_CHECK_MEMBER(ppc_thread_state64_t.r0,
268 AC_DEFINE(HAS_PPC_THREAD_STATE64_R0,1,dnl
269 [ppc_thread_state64_t has field r0]),,
270 [#include <mach/thread_status.h>])
271 AC_CHECK_MEMBER(ppc_thread_state64_t.__r0,
272 AC_DEFINE(HAS_PPC_THREAD_STATE64___R0,1,dnl
273 [ppc_thread_state64_t has field __r0]),,
274 [#include <mach/thread_status.h>])
277 AC_CHECK_MEMBER(x86_thread_state32_t.eax,
278 AC_DEFINE(HAS_X86_THREAD_STATE32_EAX,1,dnl
279 [x86_thread_state32_t has field eax]),,
280 [#include <sys/cdefs.h>
281 #include <mach/thread_status.h>])
282 AC_CHECK_MEMBER(x86_thread_state32_t.__eax,
283 AC_DEFINE(HAS_X86_THREAD_STATE32___EAX,1,dnl
284 [x86_thread_state32_t has field __eax]),,
285 [#include <sys/cdefs.h>
286 #include <mach/thread_status.h>])
289 AC_CHECK_MEMBER(x86_thread_state64_t.rax,
290 AC_DEFINE(HAS_X86_THREAD_STATE64_RAX,1,dnl
291 [x86_thread_state64_t has field rax]),,
292 [#include <sys/cdefs.h>
293 #include <mach/thread_status.h>])
294 AC_CHECK_MEMBER(x86_thread_state64_t.__rax,
295 AC_DEFINE(HAS_X86_THREAD_STATE64___RAX,1,dnl
296 [x86_thread_state64_t has field __rax]),,
297 [#include <sys/cdefs.h>
298 #include <mach/thread_status.h>])
304 # While IRIX 6 has libdl for the O32 and N32 ABIs, it's missing for N64
305 # and unnecessary everywhere.
307 # We never want libdl on darwin. It is a fake libdl that just ends up making
311 AC_CHECK_LIB(dl, dlopen, EXTRA_TEST_LIBS="$EXTRA_TEST_LIBS -ldl")
315 # extra LD Flags which are required for targets
318 extra_ldflags_libgc=-Wl,-single_module
321 AC_SUBST(extra_ldflags_libgc)
323 AC_SUBST(EXTRA_TEST_LIBS)
325 target_all=libgcjgc.la
328 dnl If the target is an eCos system, use the appropriate eCos
330 dnl FIXME: this should not be a local option but a global target
331 dnl system; at present there is no eCos target.
334 [ --with-ecos enable runtime eCos target support],
335 TARGET_ECOS="$with_ecos"
342 case "$TARGET_ECOS" in
346 AC_DEFINE(ECOS,1,[Target is ECOS])
347 AM_CPPFLAGS="${AM_CPPFLAGS} -I${TARGET_ECOS}/include"
348 addobjs="$addobjs ecos.lo"
352 if test "${enable_cplusplus}" = yes; then
353 addincludes="$addincludes include/gc_cpp.h include/gc_allocator.h"
354 addtests="$addtests test_cpp"
357 AM_CONDITIONAL(CPLUSPLUS, test "${enable_cplusplus}" = yes)
361 AC_SUBST(AM_CPPFLAGS)
363 # Configuration of shared libraries
365 AC_MSG_CHECKING(whether to build shared libraries)
378 # Checks for pthreads functions
381 LIBS="$LIBS $THREADLIBS"
382 AC_CHECK_FUNCS([pthread_getattr_np])
385 # Configuration of machine-dependent code
387 # Set NO_EXECUTE_PERMISSION by default because gcj already uses
388 # ffi_closure_{alloc,free} which takes care of allocating trampolines
389 # in executable memory.
391 AC_MSG_CHECKING(which machine-dependent code should be used)
395 machdep="alpha_mach_dep.lo"
396 if test x"${ac_cv_lib_dl_dlopen}" != xyes ; then
397 AC_MSG_WARN(OpenBSD/Alpha without dlopen(). Shared library support is disabled)
401 machdep="alpha_mach_dep.lo"
403 i?86-*-solaris2.[[89]] | i?86-*-solaris2.1?)
404 AC_DEFINE(SOLARIS25_PROC_VDB_BUG_FIXED,1,[PROC_VDB in Solaris 2.5 gives wrong values for dirty bits])
407 machdep="mips_ultrix_mach_dep.lo"
408 AC_DEFINE(STACKBASE, __stackbase,[No description])
409 AC_DEFINE(DATASTART_IS_ETEXT,1,[No description])
412 machdep="mips_ultrix_mach-dep.lo"
414 mips-nec-sysv*|mips-unknown-sysv*)
419 machdep="mips_sgi_mach_dep.lo"
422 machdep="sparc_netbsd_mach_dep.lo"
424 sparc-sun-solaris2.3)
425 machdep="sparc_mach_dep.lo"
426 AC_DEFINE(SUNOS53_SHARED_LIB,1,[Avoid Solaris 5.3 dynamic library bug])
428 sparc*-sun-solaris2.*)
429 machdep="sparc_mach_dep.lo"
432 machdep="mach_dep.lo ia64_save_regs_in_stack.lo"
435 AC_DEFINE(NO_EXECUTE_PERMISSION,1,[cause some or all of the heap to not have execute permission])
436 if test x"$machdep" = x; then
437 AC_MSG_RESULT($machdep)
438 machdep="mach_dep.lo"
440 addobjs="$addobjs $machdep"
442 AC_SUBST(addincludes)
446 dnl As of 4.13a2, the collector will not properly work on Solaris when
447 dnl built with gcc and -O. So we remove -O in the appropriate case.
448 dnl Not needed anymore on Solaris.
449 AC_MSG_CHECKING([whether GCC optimization should be disabled])
452 *aix*) test "$GCC" = yes && O0_CFLAGS=-O0 ;;
455 if test x"$O0_CFLAGS" != x; then
460 AC_SUBST([O0_CFLAGS])
462 dnl Include defines that have become de facto standard.
463 dnl ALL_INTERIOR_POINTERS can be overridden in startup code.
464 AC_DEFINE(SILENT,1,[disables statistics printing])
465 AC_DEFINE(NO_SIGNALS,1,[does not disable signals])
466 AC_DEFINE(ALL_INTERIOR_POINTERS,1,[allows all pointers to the interior of objects to be recognized])
468 dnl By default, make the library as general as possible.
469 AC_DEFINE(JAVA_FINALIZATION,1,[make it somewhat safer to finalize objects out of order])
470 AC_DEFINE(GC_GCJ_SUPPORT,1,[include support for gcj])
471 AC_DEFINE(ATOMIC_UNCOLLECTABLE,1,[include code for GC_malloc_atomic_uncollectable])
473 AC_ARG_ENABLE(gc-debug,
474 [ --enable-gc-debug include full support for pointer backtracing etc.],
475 [ if test "$enable_gc_debug" = "yes"; then
476 AC_MSG_WARN("Must define GC_DEBUG and use debug alloc. in clients.")
477 AC_DEFINE(KEEP_BACK_PTRS,1,[Add code to save back pointers])
478 AC_DEFINE(DBG_HDRS_ALL,1,[Make sure that all objects have debug headers])
481 AC_DEFINE(MAKE_BACK_GRAPH,1,[Enable GC_PRINT_BACK_HEIGHT environment variable])
483 x86-*-linux* | i586-*-linux* | i686-*-linux* | x86_64-*-linux* )
484 AC_DEFINE(MAKE_BACK_GRAPH,1)
485 AC_MSG_WARN("Client must not use -fomit-frame-pointer.")
486 AC_DEFINE(SAVE_CALL_COUNT, 8, [number of call frames saved with objects allocated through the debugging interface])
491 if test "${gc_use_mmap}" = "yes"; then
492 AC_DEFINE(USE_MMAP, 1, [use MMAP instead of sbrk to get new memory])
495 if test -n "$with_cross_host" &&
496 test x"$with_cross_host" != x"no"; then
497 toolexecdir='$(exec_prefix)/$(target_noncanonical)'
498 toolexeclibdir='$(toolexecdir)/lib'
500 toolexecdir='$(libdir)/gcc-lib/$(target_noncanonical)'
501 toolexeclibdir='$(libdir)'
503 multi_os_directory=`$CC -print-multi-os-directory`
504 case $multi_os_directory in
505 .) ;; # Avoid trailing /.
506 *) toolexeclibdir=$toolexeclibdir/$multi_os_directory ;;
508 AC_SUBST(toolexecdir)
509 AC_SUBST(toolexeclibdir)
511 if test "${multilib}" = "yes"; then
512 multilib_arg="--enable-multilib"
517 AC_CONFIG_HEADERS([include/gc_config.h include/gc_ext_config.h])
519 AC_CONFIG_FILES(Makefile include/Makefile testsuite/Makefile threads.mk)