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root/cebix/BasiliskII/src/MacOSX/configure.in
Revision: 1.9
Committed: 2003-03-24T11:41:32Z (21 years, 7 months ago) by nigel
Branch: MAIN
CVS Tags: nigel-build-12, nigel-build-13
Changes since 1.8: +2 -0 lines
Log Message:
Fixes for latest FPU emulation source.
(We add the FPU_* into config.h so that the IDE can pick it up automatically)

File Contents

# Content
1 dnl Process this file with autoconf to produce a configure script.
2 dnl Based on Unix/configure.in
3 dnl Written in 1999 by Christian Bauer et al.
4
5 AC_INIT(main_macosx.mm)
6 AC_PREREQ(2.12)
7 AC_CONFIG_HEADER(config.h)
8
9 dnl Video options.
10 AC_ARG_ENABLE(multiwin,
11 [ --enable-multiwin allow multiple emulator windows [default=no]], [ENABLE_MULTIPLE=$enableval], [ENABLE_MULTIPLE=no])
12
13 dnl JIT compiler options.
14 AC_ARG_ENABLE(jit-compiler, [ --enable-jit-compiler enable JIT compiler [default=no]], [WANT_JIT=$enableval], [WANT_JIT=no])
15 AC_ARG_ENABLE(jit-debug, [ --enable-jit-debug activate native code disassemblers [default=no]], [WANT_JIT_DEBUG=$enableval], [WANT_JIT_DEBUG=no])
16
17 dnl FPU emulation core.
18 AC_ARG_ENABLE(fpe,
19 [ --enable-fpe=FPE specify which fpu emulator to use [default=auto]],
20 [ case "$enableval" in
21 dnl default is always ieee, if architecture has this fp format
22 auto) FPE_CORE_TEST_ORDER="ieee uae";;
23 ieee) FPE_CORE_TEST_ORDER="ieee";;
24 uae) FPE_CORE_TEST_ORDER="uae";;
25 x86) FPE_CORE_TEST_ORDER="x86";;
26 *) AC_MSG_ERROR([--enable-fpe takes only one of the following values: auto, x86, ieee, uae]);;
27 esac
28 ],
29 [ FPE_CORE_TEST_ORDER="ieee uae"
30 ])
31
32 dnl Addressing modes.
33 AC_ARG_ENABLE(addressing,
34 [ --enable-addressing=AM specify the addressing mode to use [default=fastest]],
35 [ case "$enableval" in
36 real) ADDRESSING_TEST_ORDER="real";;
37 direct) ADDRESSING_TEST_ORDER="direct";;
38 banks) ADDRESSING_TEST_ORDER="banks";;
39 fastest)ADDRESSING_TEST_ORDER="direct banks";;
40 *) AC_MSG_ERROR([--enable-addressing takes only one of the following values: fastest, real, direct, banks]);;
41 esac
42 ],
43 [ ADDRESSING_TEST_ORDER="direct banks"
44 ])
45
46 dnl External packages.
47 AC_ARG_WITH(mon, [ --with-mon use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
48
49 dnl Canonical system information.
50 AC_CANONICAL_HOST
51 AC_CANONICAL_TARGET
52
53 dnl Target OS type
54 OS_TYPE=darwin
55 DEFINES="$DEFINES -DOS_$OS_TYPE"
56
57 dnl Target CPU type.
58 HAVE_I386=no
59 HAVE_M68K=no
60 HAVE_SPARC=no
61 HAVE_POWERPC=no
62 case "$target_cpu" in
63 i386* | i486* | i586* | i686* | i786* ) CPU_TYPE=i386 HAVE_I386=yes;;
64 m68k* ) CPU_TYPE=m68k HAVE_M68K=yes;;
65 sparc* ) CPU_TYPE=sparc HAVE_SPARC=yes;;
66 powerpc* ) CPU_TYPE=powerpc HAVE_POWERPC=yes;;
67 *) CPU_TYPE=`echo $target_cpu | sed -e 's/-/_/g'`;;
68 esac
69 DEFINES="$DEFINES -DCPU_$CPU_TYPE"
70
71 dnl Checks for programs.
72 AC_PROG_CC
73 AC_PROG_CC_C_O
74 AC_PROG_CPP
75 AC_PROG_CXX
76 AC_PROG_MAKE_SET
77 AC_PROG_INSTALL
78
79 dnl MacOS 10.2 (and later?) have a particular header for defining the OS version
80 AC_CHECK_HEADER(AvailabilityMacros.h)
81 if [[ "x$ac_cv_header_AvailabilityMacros_h" = "xyes" ]]; then
82 AC_DEFINE(AVAILABILITYMACROS, 1, [Header specific to 10.2 and later.])
83 fi
84
85 dnl We use mon if possible.
86 MONSRCS=
87 if [[ "x$WANT_MON" = "xyes" ]]; then
88 AC_MSG_CHECKING(for mon)
89 mon_srcdir=../../../mon/src
90 if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
91 AC_MSG_RESULT(yes)
92 AC_DEFINE(ENABLE_MON, 1, [Define if using "mon".])
93 MONSRCS="$mon_srcdir/mon.cpp $mon_srcdir/mon_6502.cpp $mon_srcdir/mon_z80.cpp $mon_srcdir/mon_cmd.cpp $mon_srcdir/mon_disass.cpp $mon_srcdir/mon_ppc.cpp $mon_srcdir/mon_lowmem.cpp $mon_srcdir/disass/floatformat.c $mon_srcdir/disass/i386-dis.c $mon_srcdir/disass/m68k-dis.c $mon_srcdir/disass/m68k-opc.c"
94 CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass"
95 AC_CHECK_LIB(termcap, tputs)
96 AC_CHECK_LIB(readline, readline)
97 AC_CHECK_HEADERS(readline.h history.h readline/readline.h readline/history.h)
98 else
99 AC_MSG_RESULT(no)
100 AC_MSG_WARN([Could not find mon, ignoring --with-mon.])
101 WANT_MON=no
102 fi
103 fi
104
105 dnl We want pthreads.
106 HAVE_PTHREADS=yes
107 AC_CHECK_FUNCS(pthread_cancel)
108 AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
109 AC_CHECK_FUNCS(pthread_mutexattr_settype)
110 AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
111
112 dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
113 SEMSRC=
114 AC_CHECK_FUNCS(sem_init, , [
115 if test "x$HAVE_PTHREADS" = "xyes"; then
116 SEMSRC=posix_sem.cpp
117 fi
118 ])
119
120 dnl We want to enable multiple window support if possible
121 if [[ "x$WANT_MWIN" = "xyes" ]]; then
122 WANT_MWIN=yes
123 DEFINES="$DEFINES -DENABLE_MULTIPLE"
124 fi
125
126 dnl We use 64-bit file size support if possible.
127 AC_SYS_LARGEFILE
128
129 dnl Checks for header files.
130 AC_HEADER_STDC
131 AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h sys/mman.h)
132
133 dnl Checks for typedefs, structures, and compiler characteristics.
134 AC_C_BIGENDIAN
135 AC_C_CONST
136 AC_C_INLINE
137 AC_CHECK_SIZEOF(short, 2)
138 AC_CHECK_SIZEOF(int, 4)
139 AC_CHECK_SIZEOF(long, 4)
140 AC_CHECK_SIZEOF(long long, 8)
141 AC_CHECK_SIZEOF(float, 4)
142 AC_CHECK_SIZEOF(double, 8)
143 AC_CHECK_SIZEOF(long double, 12)
144 AC_CHECK_SIZEOF(void *, 4)
145 dnl These two symbols are not defined in 10.1's autoconf files:
146 dnl AC_CHECK_TYPE(loff_t, off_t)
147 dnl AC_CHECK_TYPE(caddr_t, [char *])
148 dnl which causes problems for autoheader.
149 dnl We define loff_t as a typedef of off_t in sysdeps.h if we don't have LOFF_T
150 AC_CHECK_TYPE(off_t)
151 dnl We still need off_t, though:
152 AC_TYPE_OFF_T
153 AC_TYPE_SIZE_T
154 AC_TYPE_SIGNAL
155 AC_HEADER_TIME
156 AC_STRUCT_TM
157
158 dnl AC_CHECK_TYPE(socklen_t)
159 dnl Check whether sys/socket.h defines type socklen_t.
160 dnl (extracted from ac-archive/Miscellaneous)
161 AC_CACHE_CHECK([for socklen_t],
162 ac_cv_type_socklen_t, [
163 AC_TRY_COMPILE([
164 #include <sys/types.h>
165 #include <sys/socket.h>
166 ], [socklen_t len = 42; return 0;],
167 ac_cv_type_socklen_t=yes, ac_cv_type_socklen_t=no,
168 dnl When cross-compiling, do not assume anything.
169 ac_cv_type_socklen_t="guessing no"
170 )
171 ])
172 if [[ "x$ac_cv_type_socklen_t" != "xyes" ]]; then
173 AC_DEFINE(socklen_t, int, [Define to 'int' if <sys/types.h> doesn't define.])
174 fi
175
176
177 dnl Checks for library functions.
178 AC_CHECK_FUNCS(strdup cfmakeraw)
179 AC_CHECK_FUNCS(clock_gettime timer_create)
180 AC_CHECK_FUNCS(sigaction signal)
181 AC_CHECK_FUNCS(mmap mprotect munmap)
182 AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
183
184 dnl Darwin seems to define mach_task_self() instead of task_self().
185 AC_CHECK_FUNCS(mach_task_self task_self)
186
187 dnl Select system-dependant source files.
188 DEFINES="$DEFINES -DBSD_COMP"
189 dnl Check for the CAM library
190 AC_CHECK_LIB(cam, cam_open_btl, HAVE_LIBCAM=yes, HAVE_LIBCAM=no)
191 if [[ "x$HAVE_LIBCAM" = "xno" ]]; then
192 AC_MSG_WARN([Cannot find libcam for SCSI management, disabling SCSI support.])
193 else
194 dnl Check for the sys kernel includes
195 AC_CHECK_HEADER(camlib.h)
196 if [[ "x$ac_cv_header_camlib_h" = "xno" ]]; then
197 dnl In this case I should fix this thing including a "patch"
198 dnl to access directly to the functions in the kernel :) --Orlando
199 AC_MSG_WARN([Cannot find includes for CAM library, disabling SCSI support.])
200 else
201 SCSISRC=FreeBSD/scsi_freebsd.cpp
202 LIBS="$LIBS -lcam"
203 DEFINES="$DEFINES -DCAM"
204 fi
205 fi
206
207 dnl Use 68k CPU natively?
208 WANT_NATIVE_M68K=no
209
210 SYSSRCS="$SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
211
212 dnl Define a macro that translates a yesno-variable into a C macro definition
213 dnl to be put into the config.h file
214 dnl $1 -- the macro to define
215 dnl $2 -- the value to translate
216 dnl $3 -- template name
217 AC_DEFUN(AC_TRANSLATE_DEFINE, [
218 if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
219 AC_DEFINE($1, 1, $3)
220 fi
221 ])
222
223 dnl Various checks if the system supports vm_allocate() and the like functions.
224 have_mach_vm=no
225 if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
226 "x$ac_cv_func_vm_protect" = "xyes" ]]; then
227 have_mach_vm=yes
228 fi
229 AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm",
230 [Define if your system has a working vm_allocate()-based memory allocator.])
231
232 dnl Check that vm_allocate(), vm_protect() work
233 if [[ "x$have_mach_vm" = "xyes" ]]; then
234
235 AC_CACHE_CHECK([whether vm_protect works],
236 ac_cv_vm_protect_works, [
237 AC_LANG_SAVE
238 AC_LANG_CPLUSPLUS
239 ac_cv_vm_protect_works=yes
240 dnl First the tests that should segfault
241 for test_def in NONE_READ NONE_WRITE READ_WRITE; do
242 AC_TRY_RUN([
243 #define CONFIGURE_TEST_VM_MAP
244 #define TEST_VM_PROT_$test_def
245 #include "../Unix/vm_alloc.cpp"
246 ], ac_cv_vm_protect_works=no, rm -f core,
247 dnl When cross-compiling, do not assume anything
248 ac_cv_vm_protect_works="guessing no"
249 )
250 done
251 AC_TRY_RUN([
252 #define CONFIGURE_TEST_VM_MAP
253 #define TEST_VM_PROT_RDWR_WRITE
254 #include "../Unix/vm_alloc.cpp"
255 ], , ac_cv_vm_protect_works=no,
256 dnl When cross-compiling, do not assume anything
257 ac_cv_vm_protect_works="guessing no"
258 )
259 AC_LANG_RESTORE
260 ]
261 )
262
263 dnl Remove support for vm_allocate() if vm_protect() does not work
264 if [[ "x$have_mach_vm" = "xyes" ]]; then
265 case $ac_cv_vm_protect_works in
266 *yes) have_mach_vm=yes;;
267 *no) have_mach_vm=no;;
268 esac
269 fi
270 AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm",
271 [Define if your system has a working vm_allocate()-based memory allocator.])
272
273 fi dnl HAVE_MACH_VM
274
275 dnl Various checks if the system supports mmap() and the like functions.
276 dnl ... and Mach memory allocators are not supported
277 have_mmap_vm=no
278 if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \
279 "x$ac_cv_func_mprotect" = "xyes" ]]; then
280 if [[ "x$have_mach_vm" = "xno" ]]; then
281 have_mmap_vm=yes
282 fi
283 fi
284 AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm",
285 [Define if your system has a working mmap()-based memory allocator.])
286
287 dnl Check that mmap() and associated functions work.
288 if [[ "x$have_mmap_vm" = "xyes" ]]; then
289
290 dnl Check if we have a working anonymous mmap()
291 AC_CACHE_CHECK([whether mmap supports MAP_ANON],
292 ac_cv_mmap_anon, [
293 AC_LANG_SAVE
294 AC_LANG_CPLUSPLUS
295 AC_TRY_RUN([
296 #define HAVE_MMAP_ANON
297 #define CONFIGURE_TEST_VM_MAP
298 #define TEST_VM_MMAP_ANON
299 #include "../Unix/vm_alloc.cpp"
300 ], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no,
301 dnl When cross-compiling, do not assume anything.
302 ac_cv_mmap_anon="guessing no"
303 )
304 AC_LANG_RESTORE
305 ]
306 )
307 AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon",
308 [Define if <sys/mman.h> defines MAP_ANON and mmap()'ing with MAP_ANON works.])
309
310 AC_CACHE_CHECK([whether mmap supports MAP_ANONYMOUS],
311 ac_cv_mmap_anonymous, [
312 AC_LANG_SAVE
313 AC_LANG_CPLUSPLUS
314 AC_TRY_RUN([
315 #define HAVE_MMAP_ANONYMOUS
316 #define CONFIGURE_TEST_VM_MAP
317 #define TEST_VM_MMAP_ANON
318 #include "../Unix/vm_alloc.cpp"
319 ], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
320 dnl When cross-compiling, do not assume anything.
321 ac_cv_mmap_anonymous="guessing no"
322 )
323 AC_LANG_RESTORE
324 ]
325 )
326 AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous",
327 [Define if <sys/mman.h> defines MAP_ANONYMOUS and mmap()'ing with MAP_ANONYMOUS works.])
328
329 AC_CACHE_CHECK([whether mprotect works],
330 ac_cv_mprotect_works, [
331 AC_LANG_SAVE
332 AC_LANG_CPLUSPLUS
333 ac_cv_mprotect_works=yes
334 dnl First the tests that should segfault
335 for test_def in NONE_READ NONE_WRITE READ_WRITE; do
336 AC_TRY_RUN([
337 #define CONFIGURE_TEST_VM_MAP
338 #define TEST_VM_PROT_$test_def
339 #include "../Unix/vm_alloc.cpp"
340 ], ac_cv_mprotect_works=no, rm -f core,
341 dnl When cross-compiling, do not assume anything
342 ac_cv_mprotect_works="guessing no"
343 )
344 done
345 AC_TRY_RUN([
346 #define CONFIGURE_TEST_VM_MAP
347 #define TEST_VM_PROT_RDWR_WRITE
348 #include "../Unix/vm_alloc.cpp"
349 ], , ac_cv_mprotect_works=no,
350 dnl When cross-compiling, do not assume anything
351 ac_cv_mprotect_works="guessing no"
352 )
353 AC_LANG_RESTORE
354 ]
355 )
356
357 dnl Remove support for mmap() if mprotect() does not work
358 if [[ "x$have_mmap_vm" = "xyes" ]]; then
359 case $ac_cv_mprotect_works in
360 *yes) have_mmap_vm=yes;;
361 *no) have_mmap_vm=no;;
362 esac
363 fi
364 AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm,
365 [Define if your system has a working mmap()-based memory allocator.])
366
367 fi dnl HAVE_MMAP_VM
368
369 dnl Check if we can mmap 0x2000 bytes from 0x0000
370 AC_CACHE_CHECK([whether we can map Low Memory area 0x0000-0x2000],
371 ac_cv_can_map_lm, [
372 AC_LANG_SAVE
373 AC_LANG_CPLUSPLUS
374 AC_TRY_RUN([
375 #include "../Unix/vm_alloc.cpp"
376 int main(void) { /* returns 0 if we could map the lowmem globals */
377 volatile char * lm;
378 if (vm_init() < 0) exit(1);
379 if ((lm = (volatile char *)vm_acquire_fixed(0, 0x2000)) == VM_MAP_FAILED) exit(1);
380 lm[0] = 'z';
381 if (vm_release((char *)lm, 0x2000) < 0) exit(1);
382 vm_exit(); exit(0);
383 }
384 ], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no,
385 dnl When cross-compiling, do not assume anything.
386 ac_cv_can_map_lm="guessing no"
387 )
388 AC_LANG_RESTORE
389 ]
390 )
391
392 dnl Check signal handlers need to be reinstalled
393 AC_CACHE_CHECK([whether signal handlers need to be reinstalled],
394 ac_cv_signal_need_reinstall, [
395 AC_LANG_SAVE
396 AC_LANG_CPLUSPLUS
397 AC_TRY_RUN([
398 #include <stdlib.h>
399 #ifdef HAVE_UNISTD_H
400 #include <unistd.h>
401 #endif
402 #include <signal.h>
403 static int handled_signal = 0;
404 RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
405 int main(void) { /* returns 0 if signals need not to be reinstalled */
406 signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
407 exit(handled_signal == 2);
408 }
409 ], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no,
410 dnl When cross-compiling, do not assume anything.
411 ac_cv_signal_need_reinstall="guessing yes"
412 )
413 AC_LANG_RESTORE
414 ]
415 )
416 AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall",
417 [Define if your system requires signals to be reinstalled.])
418
419 dnl Check if sigaction handlers need to be reinstalled
420 AC_CACHE_CHECK([whether sigaction handlers need to be reinstalled],
421 ac_cv_sigaction_need_reinstall, [
422 AC_LANG_SAVE
423 AC_LANG_CPLUSPLUS
424 AC_TRY_RUN([
425 #include <stdlib.h>
426 #ifdef HAVE_UNISTD_H
427 #include <unistd.h>
428 #endif
429 #include <signal.h>
430 static int handled_signal = 0;
431 RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
432 typedef RETSIGTYPE (*signal_handler)(int);
433 static signal_handler mysignal(int sig, signal_handler handler) {
434 struct sigaction old_sa;
435 struct sigaction new_sa;
436 new_sa.sa_handler = handler;
437 return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler);
438 }
439 int main(void) { /* returns 0 if signals need not to be reinstalled */
440 mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
441 exit(handled_signal == 2);
442 }
443 ], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no,
444 dnl When cross-compiling, do not assume anything.
445 ac_cv_sigaction_need_reinstall="guessing yes"
446 )
447 AC_LANG_RESTORE
448 ]
449 )
450 AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall",
451 [Define if your system requires sigactions to be reinstalled.])
452
453 dnl Check if extended signals are supported.
454 AC_CACHE_CHECK([whether your system supports extended signal handlers],
455 ac_cv_have_extended_signals, [
456 AC_LANG_SAVE
457 AC_LANG_CPLUSPLUS
458 AC_TRY_RUN([
459 #define HAVE_SIGINFO_T 1
460 #define CONFIGURE_TEST_SIGSEGV_RECOVERY
461 #include "../Unix/vm_alloc.cpp"
462 #include "../Unix/sigsegv.cpp"
463 ], ac_cv_have_extended_signals=yes, ac_cv_have_extended_signals=no,
464 dnl When cross-compiling, do not assume anything.
465 ac_cv_have_extended_signals=no
466 )
467 AC_LANG_RESTORE
468 ]
469 )
470 AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals",
471 [Define if your system support extended signals.])
472
473 dnl This program never returns (exits) on OS X
474 dnl Otherwise, check for subterfuges.
475 dnl if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
476 dnl AC_CACHE_CHECK([whether we then have a subterfuge for your system],
477 dnl ac_cv_have_sigcontext_hack, [
478 dnl AC_LANG_SAVE
479 dnl AC_LANG_CPLUSPLUS
480 dnl AC_TRY_RUN([
481 dnl #define HAVE_SIGCONTEXT_SUBTERFUGE 1
482 dnl #define CONFIGURE_TEST_SIGSEGV_RECOVERY
483 dnl #include "../Unix/vm_alloc.cpp"
484 dnl #include "../Unix/sigsegv.cpp"
485 dnl ], ac_cv_have_sigcontext_hack=yes, ac_cv_have_sigcontext_hack=no,
486 dnl dnl When cross-compiling, do not assume anything.
487 dnl ac_cv_have_sigcontext_hack=no
488 dnl )
489 dnl AC_LANG_RESTORE
490 dnl ])
491 dnl AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack",
492 dnl [Define if we know a hack to replace siginfo_t->si_addr member.])
493 dnl fi
494
495 dnl Check if we can ignore the fault (instruction skipping in SIGSEGV handler)
496 AC_CACHE_CHECK([whether we can skip instruction in SIGSEGV handler],
497 ac_cv_have_skip_instruction, [
498 AC_LANG_SAVE
499 AC_LANG_CPLUSPLUS
500 AC_TRY_RUN([
501 #define HAVE_SIGSEGV_SKIP_INSTRUCTION 1
502 #define CONFIGURE_TEST_SIGSEGV_RECOVERY
503 #include "../Unix/vm_alloc.cpp"
504 #include "../Unix/sigsegv.cpp"
505 ], ac_cv_have_skip_instruction=yes, ac_cv_have_skip_instruction=no,
506 dnl When cross-compiling, do not assume anything.
507 ac_cv_have_skip_instruction=no
508 )
509 AC_LANG_RESTORE
510 ]
511 )
512 AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_INSTRUCTION, "$ac_cv_have_skip_instruction",
513 [Define if we can ignore the fault (instruction skipping in SIGSEGV handler).])
514
515 dnl Can we do Video on SEGV Signals ?
516 CAN_VOSF=no
517 if [[ "$ac_cv_have_extended_signals" = "yes" -o "$ac_cv_have_sigcontext_hack" = "yes" ]]; then
518 CAN_VOSF=yes
519 fi
520
521 dnl Determine the addressing mode to use
522 if [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
523 ADDRESSING_MODE="real"
524 else
525 ADDRESSING_MODE=""
526 AC_MSG_CHECKING([for the addressing mode to use])
527 for am in $ADDRESSING_TEST_ORDER; do
528 case $am in
529 real)
530 dnl Requires ability to mmap() Low Memory globals
531 if [[ "x$ac_cv_can_map_lm" = "xno" ]]; then
532 continue
533 fi
534 dnl Requires VOSF screen updates
535 if [[ "x$CAN_VOSF" = "xno" ]]; then
536 continue
537 fi
538 dnl Real addressing will probably work.
539 ADDRESSING_MODE="real"
540 WANT_VOSF=yes dnl we can use VOSF and we need it actually
541 DEFINES="$DEFINES -DREAL_ADDRESSING"
542 break
543 ;;
544 direct)
545 dnl Requires VOSF screen updates
546 if [[ "x$CAN_VOSF" = "xyes" ]]; then
547 ADDRESSING_MODE="direct"
548 WANT_VOSF=yes dnl we can use VOSF and we need it actually
549 DEFINES="$DEFINES -DDIRECT_ADDRESSING"
550 break
551 fi
552 ;;
553 banks)
554 dnl Default addressing mode
555 ADDRESSING_MODE="memory banks"
556 break
557 ;;
558 *)
559 AC_MSG_ERROR([Internal configure.in script error for $am addressing mode])
560 esac
561 done
562 AC_MSG_RESULT($ADDRESSING_MODE)
563 if [[ "x$ADDRESSING_MODE" = "x" ]]; then
564 AC_MSG_WARN([Sorry, no suitable addressing mode in $ADDRESSING_TEST_ORDER])
565 ADDRESSING_MODE="memory banks"
566 fi
567 fi
568
569 dnl Banked Memory Addressing mode is not supported by the JIT compiler
570 if [[ "x$WANT_JIT" = "xyes" -a "x$ADDRESSING_MODE" = "xmemory banks" ]]; then
571 AC_MSG_ERROR([Sorry, the JIT Compiler requires Direct Addressing, at least])
572 fi
573
574 dnl Enable VOSF screen updates with this feature is requested and feasible
575 if [[ "x$WANT_VOSF" = "xyes" -a "x$CAN_VOSF" = "xyes" ]]; then
576 AC_DEFINE(ENABLE_VOSF, 1, [Define if using video enabled on SEGV signals.])
577 else
578 WANT_VOSF=no
579 fi
580
581 dnl Check for GAS.
582 HAVE_GAS=no
583 AC_MSG_CHECKING(for GAS .p2align feature)
584 cat >conftest.S << EOF
585 .text
586 .p2align 5
587 EOF
588 if $CC conftest.S -c -o conftest.o >/dev/null 2>&1 ; then HAVE_GAS=yes; fi
589 AC_MSG_RESULT($HAVE_GAS)
590
591 dnl Check for GCC 2.7 or higher.
592 HAVE_GCC27=no
593 AC_MSG_CHECKING(for GCC 2.7 or higher)
594 AC_EGREP_CPP(yes,
595 [#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5
596 yes
597 #endif
598 ], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
599
600 dnl Check for GCC 3.0 or higher.
601 HAVE_GCC30=no
602 AC_MSG_CHECKING(for GCC 3.0 or higher)
603 AC_EGREP_CPP(yes,
604 [#if __GNUC__ >= 3
605 yes
606 #endif
607 ], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
608
609 dnl Set "-fomit-frame-pointer" on i386 GCC 2.7 or higher.
610 dnl Also set "-fno-exceptions" for C++ because exception handling requires
611 dnl the frame pointer.
612 if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" ]]; then
613 CFLAGS="$CFLAGS -fomit-frame-pointer"
614 CXXFLAGS="$CXXFLAGS -fomit-frame-pointer -fno-exceptions"
615 fi
616
617 dnl (gb) Do not merge constants since it breaks fpu/fpu_x86.cpp.
618 dnl As of 2001/08/02, this affects the following compilers:
619 dnl Official: probably gcc-3.1 (mainline CVS)
620 dnl Mandrake: gcc-2.96 >= 0.59mdk, gcc-3.0.1 >= 0.1mdk
621 dnl Red Hat : gcc-2.96 >= 89, gcc-3.0 >= 1
622 if [[ "x$HAVE_GCC27" = "xyes" ]]; then
623 SAVED_CXXFLAGS="$CXXFLAGS"
624 CXXFLAGS="$CXXFLAGS -fno-merge-constants"
625 AC_CACHE_CHECK([whether GCC supports constants merging], ac_cv_gcc_constants_merging, [
626 AC_LANG_SAVE
627 AC_LANG_CPLUSPLUS
628 AC_TRY_COMPILE([],[],[ac_cv_gcc_constants_merging=yes],[ac_cv_gcc_constants_merging=no])
629 AC_LANG_RESTORE
630 ])
631 if [[ "x$ac_cv_gcc_constants_merging" != "xyes" ]]; then
632 CXXFLAGS="$SAVED_CXXFLAGS"
633 fi
634 fi
635
636 dnl Select appropriate CPU source and REGPARAM define.
637 ASM_OPTIMIZATIONS=none
638 CPUSRCS="cpuemu1.cpp cpuemu2.cpp cpuemu3.cpp cpuemu4.cpp cpuemu5.cpp cpuemu6.cpp cpuemu7.cpp cpuemu8.cpp"
639
640 dnl (gb) JITSRCS will be emptied later if the JIT is not available
641 dnl Other platforms should define their own set of noflags file variants
642 CAN_JIT=no
643 JITSRCS="compemu1.cpp compemu2.cpp compemu3.cpp compemu4.cpp compemu5.cpp compemu6.cpp compemu7.cpp compemu8.cpp"
644
645 if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_I386" = "xyes" -a "x$OS_TYPE" != "xfreebsd" ]]; then
646 dnl i386 CPU
647 DEFINES="$DEFINES -DUNALIGNED_PROFITABLE -DREGPARAM=\"__attribute__((regparm(3)))\""
648 if [[ "x$HAVE_GAS" = "xyes" ]]; then
649 ASM_OPTIMIZATIONS=i386
650 DEFINES="$DEFINES -DX86_ASSEMBLY -DOPTIMIZED_FLAGS -DSAHF_SETO_PROFITABLE"
651 CPUSRCS="cpufast1.s cpufast2.s cpufast3.s cpufast4.s cpufast5.s cpufast6.s cpufast7.s cpufast8.s"
652 JITSRCS="cpufast1_nf.s cpufast2_nf.s cpufast3_nf.s cpufast4_nf.s cpufast5_nf.s cpufast6_nf.s cpufast7_nf.s cpufast8_nf.s $JITSRCS"
653 fi
654 CAN_JIT=yes
655 elif [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_SPARC" = "xyes" -a "x$HAVE_GAS" = "xyes" ]]; then
656 dnl SPARC CPU
657 case "$target_os" in
658 solaris*)
659 AC_MSG_CHECKING(SPARC CPU architecture)
660 SPARC_TYPE=`Solaris/which_sparc`
661 AC_MSG_RESULT($SPARC_TYPE)
662 case "$SPARC_TYPE" in
663 SPARC_V8)
664 ASM_OPTIMIZATIONS="SPARC V8 architecture"
665 DEFINES="$DEFINES -DSPARC_V8_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
666 CFLAGS="$CFLAGS -Wa,-Av8"
667 CXXFLAGS="$CXXFLAGS -Wa,-Av8"
668 ;;
669 SPARC_V9)
670 ASM_OPTIMIZATIONS="SPARC V9 architecture"
671 DEFINES="$DEFINES -DSPARC_V9_ASSEMBLY" dnl -DOPTIMIZED_FLAGS"
672 CFLAGS="$CFLAGS -Wa,-Av9"
673 CXXFLAGS="$CXXFLAGS -Wa,-Av9"
674 ;;
675 esac
676 ;;
677 esac
678 elif [[ "x$WANT_NATIVE_M68K" = "xyes" ]]; then
679 dnl Native m68k, no emulation
680 CPUINCLUDES="-I../native_cpu"
681 CPUSRCS="asm_support.s"
682 fi
683
684 dnl Enable JIT compiler, if possible.
685 if [[ "x$WANT_JIT" = "xyes" -a "x$CAN_JIT" ]]; then
686 JITSRCS="$JITSRCS ../uae_cpu/compiler/compemu_support.cpp ../uae_cpu/compiler/compemu_fpp.cpp compstbl.o cpustbl_nf.o"
687 DEFINES="$DEFINES -DUSE_JIT -DUSE_JIT_FPU"
688
689 if [[ "x$WANT_JIT_DEBUG" = "xyes" ]]; then
690 if [[ "x$WANT_MON" = "xyes" ]]; then
691 DEFINES="$DEFINES -DJIT_DEBUG=1"
692 else
693 AC_MSG_WARN([cxmon not found, ignoring --enable-jit-debug])
694 WANT_JIT_DEBUG=no
695 fi
696 fi
697
698 dnl IEEE core is the only FPU emulator to use with the JIT compiler
699 case $FPE_CORE_TEST_ORDER in
700 ieee*) ;;
701 *) AC_MSG_WARN([Forcing use of the IEEE FPU core, as the JIT compiler supports only this one.]) ;;
702 esac
703 FPE_CORE_TEST_ORDER="ieee"
704 else
705 WANT_JIT=no
706 WANT_JIT_DEBUG=no
707 JITSRCS=""
708 fi
709
710 dnl Utility macro used by next two tests.
711 dnl AC_EXAMINE_OBJECT(C source code,
712 dnl commands examining object file,
713 dnl [commands to run if compile failed]):
714 dnl
715 dnl Compile the source code to an object file; then convert it into a
716 dnl printable representation. All unprintable characters and
717 dnl asterisks (*) are replaced by dots (.). All white space is
718 dnl deleted. Newlines (ASCII 0x10) in the input are preserved in the
719 dnl output, but runs of newlines are compressed to a single newline.
720 dnl Finally, line breaks are forcibly inserted so that no line is
721 dnl longer than 80 columns and the file ends with a newline. The
722 dnl result of all this processing is in the file conftest.dmp, which
723 dnl may be examined by the commands in the second argument.
724 dnl
725 AC_DEFUN([gcc_AC_EXAMINE_OBJECT],
726 [AC_LANG_SAVE
727 AC_LANG_C
728 dnl Next bit cribbed from AC_TRY_COMPILE.
729 cat > conftest.$ac_ext <<EOF
730 [#line __oline__ "configure"
731 #include "confdefs.h"
732 $1
733 ]EOF
734 if AC_TRY_EVAL(ac_compile); then
735 od -c conftest.o |
736 sed ['s/^[0-7]*[ ]*/ /
737 s/\*/./g
738 s/ \\n/*/g
739 s/ [0-9][0-9][0-9]/./g
740 s/ \\[^ ]/./g'] |
741 tr -d '
742 ' | tr -s '*' '
743 ' | fold | sed '$a\
744 ' > conftest.dmp
745 $2
746 ifelse($3, , , else
747 $3
748 )dnl
749 fi
750 rm -rf conftest*
751 AC_LANG_RESTORE])
752
753 dnl Floating point format probe.
754 dnl The basic concept is the same as the above: grep the object
755 dnl file for an interesting string. We have to watch out for
756 dnl rounding changing the values in the object, however; this is
757 dnl handled by ignoring the least significant byte of the float.
758 dnl
759 dnl Does not know about VAX G-float or C4x idiosyncratic format.
760 dnl It does know about PDP-10 idiosyncratic format, but this is
761 dnl not presently supported by GCC. S/390 "binary floating point"
762 dnl is in fact IEEE (but maybe we should have that in EBCDIC as well
763 dnl as ASCII?)
764 dnl
765 AC_DEFUN([gcc_AC_C_FLOAT_FORMAT],
766 [AC_CACHE_CHECK(floating point format, ac_cv_c_float_format,
767 [gcc_AC_EXAMINE_OBJECT(
768 [/* This will not work unless sizeof(double) == 8. */
769 extern char sizeof_double_must_be_8 [sizeof(double) == 8 ? 1 : -1];
770
771 /* This structure must have no internal padding. */
772 struct possibility {
773 char prefix[8];
774 double candidate;
775 char postfix[8];
776 };
777
778 #define C(cand) { "\nformat:", cand, ":tamrof\n" }
779 struct possibility table [] =
780 {
781 C( 3.25724264705901305206e+01), /* @@IEEEFP - IEEE 754 */
782 C( 3.53802595280598432000e+18), /* D__float - VAX */
783 C( 5.32201830133125317057e-19), /* D.PDP-10 - PDP-10 - the dot is 0x13a */
784 C( 1.77977764695171661377e+10), /* IBMHEXFP - s/390 format, ascii */
785 C(-5.22995989424860458374e+10) /* IBMHEXFP - s/390 format, EBCDIC */
786 };],
787 [if grep 'format:.@IEEEF.:tamrof' conftest.dmp >/dev/null 2>&1; then
788 ac_cv_c_float_format='IEEE (big-endian)'
789 elif grep 'format:.I@@PFE.:tamrof' conftest.dmp >/dev/null 2>&1; then
790 ac_cv_c_float_format='IEEE (big-endian)'
791 elif grep 'format:.FEEEI@.:tamrof' conftest.dmp >/dev/null 2>&1; then
792 ac_cv_c_float_format='IEEE (little-endian)'
793 elif grep 'format:.EFP@@I.:tamrof' conftest.dmp >/dev/null 2>&1; then
794 ac_cv_c_float_format='IEEE (little-endian)'
795 elif grep 'format:.__floa.:tamrof' conftest.dmp >/dev/null 2>&1; then
796 ac_cv_c_float_format='VAX D-float'
797 elif grep 'format:..PDP-1.:tamrof' conftest.dmp >/dev/null 2>&1; then
798 ac_cv_c_float_format='PDP-10'
799 elif grep 'format:.BMHEXF.:tamrof' conftest.dmp >/dev/null 2>&1; then
800 ac_cv_c_float_format='IBM 370 hex'
801 else
802 AC_MSG_ERROR(Unknown floating point format)
803 fi],
804 [AC_MSG_ERROR(compile failed)])
805 ])
806 # IEEE is the default format. If the float endianness isn't the same
807 # as the integer endianness, we have to set FLOAT_WORDS_BIG_ENDIAN
808 # (which is a tristate: yes, no, default). This is only an issue with
809 # IEEE; the other formats are only supported by a few machines each,
810 # all with the same endianness.
811 format=IEEE_FLOAT_FORMAT
812 fbigend=
813 case $ac_cv_c_float_format in
814 'IEEE (big-endian)' )
815 if test $ac_cv_c_bigendian = no; then
816 fbigend=1
817 fi
818 ;;
819 'IEEE (little-endian)' )
820 if test $ac_cv_c_bigendian = yes; then
821 fbigend=0
822 fi
823 ;;
824 'VAX D-float' )
825 format=VAX_FLOAT_FORMAT
826 ;;
827 'PDP-10' )
828 format=PDP10_FLOAT_FORMAT
829 ;;
830 'IBM 370 hex' )
831 format=IBM_FLOAT_FORMAT
832 ;;
833 esac
834 AC_DEFINE_UNQUOTED(HOST_FLOAT_FORMAT, $format,
835 [Define to the floating point format of the host machine.])
836 if test -n "$fbigend"; then
837 AC_DEFINE_UNQUOTED(HOST_FLOAT_WORDS_BIG_ENDIAN, $fbigend,
838 [Define to 1 if the host machine stores floating point numbers in
839 memory with the word containing the sign bit at the lowest address,
840 or to 0 if it does it the other way around.
841
842 This macro should not be defined if the ordering is the same as for
843 multi-word integers.])
844 fi
845 ])
846
847 dnl Select appropriate FPU source.
848 gcc_AC_C_FLOAT_FORMAT
849 AC_CHECK_HEADERS(ieee754.h ieeefp.h floatingpoint.h nan.h)
850
851 for fpe in $FPE_CORE_TEST_ORDER; do
852 case $fpe in
853 ieee)
854 case $ac_cv_c_float_format in
855 IEEE*)
856 FPE_CORE="IEEE fpu core"
857 DEFINES="$DEFINES -DFPU_IEEE"
858 AC_DEFINE(FPU_IEEE, 1, [Floating Point Core emulation method is IEEE.])
859 FPUSRCS="../uae_cpu/fpu/fpu_ieee.cpp"
860 dnl Math functions not mandated by C99 standard
861 AC_CHECK_FUNCS(isnanl isinfl)
862 dnl Math functions required by C99 standard, but probably not
863 dnl implemented everywhere. In that case, we fall back to the
864 dnl regular variant for doubles.
865 AC_CHECK_FUNCS(logl log10l expl powl fabsl sqrtl)
866 AC_CHECK_FUNCS(sinl cosl tanl sinhl coshl tanhl)
867 AC_CHECK_FUNCS(asinl acosl atanl asinhl acoshl atanhl)
868 AC_CHECK_FUNCS(floorl ceill)
869 break
870 ;;
871 esac
872 ;;
873 x86)
874 if [[ ":$HAVE_GCC27:$HAVE_I386:$HAVE_GAS:" = ":yes:yes:yes:" ]]; then
875 FPE_CORE="i387 fpu core"
876 DEFINES="$DEFINES -DFPU_X86"
877 FPUSRCS="../uae_cpu/fpu/fpu_x86.cpp"
878 break
879 fi
880 ;;
881 uae)
882 FPE_CORE="uae fpu core"
883 DEFINES="$DEFINES -DFPU_UAE"
884 AC_DEFINE(FPU_UAE, 1, [Floating Point Core emulation is standard UAE.])
885 FPUSRCS="../uae_cpu/fpu/fpu_uae.cpp"
886 break
887 ;;
888 *)
889 AC_MSG_ERROR([Internal configure.in script error for $fpe fpu core])
890 ;;
891 esac
892 done
893 if [[ "x$FPE_CORE" = "x" ]]; then
894 AC_MSG_ERROR([Sorry, no suitable FPU core found in $FPE_CORE_TEST_ORDER])
895 fi
896
897 dnl Check for certain math functions
898 AC_CHECK_FUNCS(atanh)
899 AC_CHECK_FUNCS(isnan isinf finite isnormal signbit)
900
901 dnl UAE CPU sources for all non-m68k-native architectures.
902 if [[ "x$WANT_NATIVE_M68K" = "xno" ]]; then
903 CPUINCLUDES="-I../uae_cpu"
904 CPUSRCS="../uae_cpu/basilisk_glue.cpp ../uae_cpu/memory.cpp ../uae_cpu/newcpu.cpp ../uae_cpu/readcpu.cpp $FPUSRCS cpustbl.cpp cpudefs.cpp $CPUSRCS $JITSRCS"
905 fi
906
907 dnl Remove the "-g" option if set for GCC.
908 if [[ "x$HAVE_GCC27" = "xyes" ]]; then
909 CFLAGS=`echo $CFLAGS | sed -e 's/-g//g'`
910 CXXFLAGS=`echo $CXXFLAGS | sed -e 's/-g//g'`
911 fi
912
913 dnl Or if we have -Ofast
914 if [[ "x$HAVE_OFAST" = "xyes" ]]; then
915 CFLAGS="`echo $CFLAGS | sed -e 's/-g//g'` -Ofast"
916 CXXFLAGS="`echo $CXXFLAGS | sed -e 's/-g//g'` -Ofast"
917 CXXFLAGS="-LANG:std $CXXFLAGS"
918 LDFLAGS="$LDFLAGS -ipa"
919 fi
920
921 dnl Generate Makefile.
922 AC_SUBST(DEFINES)
923 AC_SUBST(SYSSRCS)
924 AC_SUBST(CPUINCLUDES)
925 AC_SUBST(CPUSRCS)
926 AC_OUTPUT(Makefile)
927
928 dnl Print summary.
929 echo
930 echo Basilisk II configuration summary:
931 echo
932 echo Multiple emulator windows .............. : $ENABLE_MULTIPLE
933 echo Enable video on SEGV signals ........... : $WANT_VOSF
934 echo mon debugger support ................... : $WANT_MON
935 echo Use JIT compiler ....................... : $WANT_JIT
936 echo JIT debug mode ......................... : $WANT_JIT_DEBUG
937 echo Floating-Point emulation core .......... : $FPE_CORE
938 echo Assembly optimizations ................. : $ASM_OPTIMIZATIONS
939 echo Addressing mode ........................ : $ADDRESSING_MODE
940 echo
941 echo "Configuration done. Now type \"make\" (or \"make ide\")."
942
943