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root/cebix/SheepShaver/src/Unix/configure.in
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Comparing SheepShaver/src/Unix/configure.in (file contents):
Revision 1.1 by cebix, 2002-02-04T16:58:13Z vs.
Revision 1.18 by gbeauche, 2004-02-16T16:30:22Z

# Line 5 | Line 5 | AC_INIT(main_unix.cpp)
5   AC_PREREQ(2.12)
6   AC_CONFIG_HEADER(config.h)
7  
8 + dnl Canonical system information.
9 + AC_CANONICAL_HOST
10 + AC_CANONICAL_TARGET
11 +
12   dnl Options.
13 + AC_ARG_ENABLE(jit,          [  --enable-jit            enable JIT compiler [default=yes]], [WANT_JIT=$enableval], [WANT_JIT=yes])
14 + AC_ARG_ENABLE(ppc-emulator, [  --enable-ppc-emulator   use the selected PowerPC emulator [default=auto]], [WANT_EMULATED_PPC=$enableval], [WANT_EMULATED_PPC=auto])
15   AC_ARG_ENABLE(xf86-dga,     [  --enable-xf86-dga       use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes])
16   AC_ARG_ENABLE(xf86-vidmode, [  --enable-xf86-vidmode   use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes])
17 + AC_ARG_ENABLE(vosf,         [  --enable-vosf           enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes])
18   AC_ARG_WITH(esd,            [  --with-esd              support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes])
19   AC_ARG_WITH(gtk,            [  --with-gtk              use GTK user interface [default=yes]], [WANT_GTK=$withval], [WANT_GTK=yes])
20   AC_ARG_WITH(mon,            [  --with-mon              use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes])
21 + AC_ARG_WITH(dgcc,           [  --with-dgcc=COMPILER    use C++ COMPILER to compile synthetic opcodes], [DYNGEN_CC=$withval])
22  
23   dnl Checks for programs.
24   AC_PROG_CC
# Line 27 | Line 35 | AC_EGREP_CPP(yes,
35   #ifdef __powerpc__
36    yes
37   #endif
38 + #ifdef __ppc__
39 +  yes
40 + #endif
41   ], [AC_MSG_RESULT(yes); HAVE_PPC=yes], AC_MSG_RESULT(no))
42  
43 + dnl We use native CPU if possible.
44 + EMULATED_PPC=yes
45 + case $WANT_EMULATED_PPC in
46 +  auto) [[ "x$HAVE_PPC" = "xyes" ]] && EMULATED_PPC=no;;
47 +  no)   EMULATED_PPC=no;;
48 + esac
49 + if [[ "x$EMULATED_PPC" = "xyes" ]]; then
50 +  AC_DEFINE(EMULATED_PPC)
51 + fi
52 +
53   dnl We use mon if possible.
54   MONSRCS=
55 + case "x$WANT_MON" in
56 + x/* | x.*)
57 +  mon_srcdir=$WANT_MON
58 +  WANT_MON=yes
59 +  ;;
60 + xyes)
61 +  mon_srcdir=../../../mon/src
62 +  ;;
63 + esac
64   if [[ "x$WANT_MON" = "xyes" ]]; then
65    AC_MSG_CHECKING(for mon)
36 –  mon_srcdir=../../../mon/src
66    if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then
67      AC_MSG_RESULT(yes)
68      AC_DEFINE(ENABLE_MON)
69      MONSRCS="$mon_srcdir/mon.cpp $mon_srcdir/mon_6502.cpp $mon_srcdir/mon_z80.cpp $mon_srcdir/mon_cmd.cpp $mon_srcdir/mon_lowmem.cpp $mon_srcdir/mon_disass.cpp $mon_srcdir/mon_ppc.cpp $mon_srcdir/disass/floatformat.c $mon_srcdir/disass/i386-dis.c $mon_srcdir/disass/m68k-dis.c $mon_srcdir/disass/m68k-opc.c"
70      CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass"
71 +    AC_CHECK_LIB(ncurses, tgetent, ,
72 +      AC_CHECK_LIB(termcap, tgetent, ,
73 +        AC_CHECK_LIB(termlib, tgetent, ,
74 +          AC_CHECK_LIB(terminfo, tgetent, ,
75 +            AC_CHECK_LIB(Hcurses, tgetent, ,
76 +              AC_CHECK_LIB(curses, tgetent))))))
77      AC_CHECK_LIB(readline, readline)
43 –    AC_CHECK_LIB(termcap, tputs)
78      AC_CHECK_HEADERS(readline.h history.h readline/readline.h readline/history.h)
79    else
80      AC_MSG_RESULT(no)
# Line 63 | Line 97 | LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -l
97  
98   dnl We need pthreads on non-PowerPC systems. Try libpthread first, then libc_r (FreeBSD), then PTL.
99   HAVE_PTHREADS=yes
100 < if [[ "x$HAVE_PPC" = "xno" ]]; then
100 > case $EMULATED_PPC:$target_os in
101 > no:linux*)
102 >  dnl We do have our own pthread_cancel() implementation
103 >  AC_DEFINE(HAVE_PTHREAD_CANCEL, 1, [Define if you have the pthread_cancel function.])
104 >  ;;
105 > *:*)
106    AC_CHECK_LIB(pthread, pthread_create, , [
107      AC_CHECK_LIB(c_r, pthread_create, , [
108        AC_CHECK_LIB(PTL, pthread_create, , [
# Line 72 | Line 111 | if [[ "x$HAVE_PPC" = "xno" ]]; then
111      ])
112    ])
113    AC_CHECK_FUNCS(pthread_cancel)
114 < fi
115 <
116 < dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
78 < SEMSRC=
79 < AC_CHECK_FUNCS(sem_init, , [
114 >  AC_CHECK_FUNCS(pthread_mutexattr_setprotocol)
115 >  AC_CHECK_FUNCS(pthread_mutexattr_settype)
116 >  AC_CHECK_FUNCS(pthread_mutexattr_setpshared)
117    if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then
118 +    AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.])
119 +  fi
120 +  dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes.
121 +  SEMSRC=
122 +  AC_CHECK_FUNCS(sem_init, , [
123 +  if test "x$HAVE_PTHREADS" = "xyes"; then
124      SEMSRC=posix_sem.cpp
125    fi
126 < ])
126 >  ])
127 >  ;;
128 > esac
129  
130   dnl We use XFree86 DGA if possible.
131   if [[ "x$WANT_XF86_DGA" = "xyes" ]]; then
# Line 105 | Line 150 | if [[ "x$WANT_XF86_VIDMODE" = "xyes" ]];
150   fi
151  
152   dnl We use GTK+ if possible.
153 < UISRCS=
153 > UISRCS=../dummy/prefs_editor_dummy.cpp
154   if [[ "x$WANT_GTK" = "xyes" ]]; then
155    AM_PATH_GTK(1.2.0, [
156      AC_DEFINE(ENABLE_GTK)
# Line 135 | Line 180 | fi
180   dnl Checks for header files.
181   AC_HEADER_STDC
182   AC_HEADER_SYS_WAIT
183 < AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h)
183 > AC_CHECK_HEADERS(mach/vm_map.h mach/mach_init.h sys/mman.h)
184 > AC_CHECK_HEADERS(sys/time.h sys/times.h)
185 > AC_CHECK_HEADERS(unistd.h fcntl.h byteswap.h)
186  
187   dnl Checks for typedefs, structures, and compiler characteristics.
188   AC_C_BIGENDIAN
# Line 145 | Line 192 | AC_CHECK_SIZEOF(short, 2)
192   AC_CHECK_SIZEOF(int, 4)
193   AC_CHECK_SIZEOF(long, 4)
194   AC_CHECK_SIZEOF(long long, 8)
195 + AC_CHECK_SIZEOF(float, 4)
196 + AC_CHECK_SIZEOF(double, 8)
197 + AC_CHECK_SIZEOF(void *, 4)
198   AC_TYPE_OFF_T
199   AC_CHECK_TYPE(loff_t, off_t)
200   AC_TYPE_SIZE_T
201 + AC_TYPE_SIGNAL
202   AC_HEADER_TIME
203   AC_STRUCT_TM
204  
205 + dnl Check whether struct sigaction has sa_restorer member.
206 + AC_CACHE_CHECK([whether struct sigaction has sa_restorer],
207 +  ac_cv_signal_sa_restorer, [
208 +  AC_TRY_COMPILE([
209 +    #include <signal.h>
210 +  ], [struct sigaction sa; sa.sa_restorer = 0;],
211 +  ac_cv_signal_sa_restorer=yes, ac_cv_signal_sa_restorer=no,
212 +  dnl When cross-compiling, do not assume anything.
213 +  ac_cv_signal_sa_restorer=no
214 +  )
215 + ])
216 + if [[ "x$ac_cv_signal_sa_restorer" = "xyes" ]]; then
217 +  AC_DEFINE(HAVE_SIGNAL_SA_RESTORER)
218 + fi
219 +
220   dnl Checks for library functions.
221   AC_CHECK_FUNCS(strdup cfmakeraw)
222 < AC_CHECK_FUNCS(nanosleep clock_gettime timer_create)
222 > AC_CHECK_FUNCS(nanosleep)
223 > AC_CHECK_FUNCS(sigaction signal)
224 > AC_CHECK_FUNCS(mmap mprotect munmap)
225 > AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect)
226 >
227 > dnl Darwin seems to define mach_task_self() instead of task_self().
228 > AC_CHECK_FUNCS(mach_task_self task_self)
229 >
230 > dnl We need clock_gettime() for better performance but it may drag
231 > dnl libpthread in, which we don't want for native ppc mode
232 > case $EMULATED_PPC:$target_os in
233 > no:linux*)
234 >  ;;
235 > *:*)
236 >  AC_SEARCH_LIBS(clock_gettime, [rt posix4])
237 >  AC_CHECK_FUNCS(clock_gettime)
238 >  ;;
239 > esac
240  
241   dnl Select system-dependant sources.
242 < if [[ "x$HAVE_PPC" = "xyes" ]]; then
243 <  SYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S"
242 > SERIALSRC=serial_unix.cpp
243 > ETHERSRC=../dummy/ether_dummy.cpp
244 > SCSISRC=../dummy/scsi_dummy.cpp
245 > AUDIOSRC=../dummy/audio_dummy.cpp
246 > EXTRASYSSRCS=
247 > case "$target_os" in
248 > linux*)
249 >  ETHERSRC=Linux/ether_linux.cpp
250 >  AUDIOSRC=audio_oss_esd.cpp
251 >  SCSISRC=Linux/scsi_linux.cpp
252 >  if [[ "x$EMULATED_PPC" = "xno" ]]; then
253 >    EXTRASYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S"
254 >  fi
255 >  ;;
256 > darwin*)
257 >  if [[ "x$EMULATED_PPC" = "xno" ]]; then
258 >    EXTRASYSSRCS="Darwin/paranoia.cpp Linux/asm_linux.S"
259 >  fi
260 >  ;;
261 > esac
262 > SYSSRCS="$SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS"
263 >
264 > dnl Define a macro that translates a yesno-variable into a C macro definition
265 > dnl to be put into the config.h file
266 > dnl $1 -- the macro to define
267 > dnl $2 -- the value to translate
268 > dnl $3 -- template name
269 > AC_DEFUN(AC_TRANSLATE_DEFINE, [
270 >    if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then
271 >        AC_DEFINE($1, 1, $3)
272 >    fi
273 > ])
274 >
275 > dnl Various checks if the system supports vm_allocate() and the like functions.
276 > have_mach_vm=no
277 > if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \
278 >      "x$ac_cv_func_vm_protect" = "xyes" ]]; then
279 >  have_mach_vm=yes
280 > fi
281 > AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm",
282 >  [Define if your system has a working vm_allocate()-based memory allocator.])
283 >
284 > dnl Check that vm_allocate(), vm_protect() work
285 > if [[ "x$have_mach_vm" = "xyes" ]]; then
286 >
287 > AC_CACHE_CHECK([whether vm_protect works],
288 >  ac_cv_vm_protect_works, [
289 >  AC_LANG_SAVE
290 >  AC_LANG_CPLUSPLUS
291 >  ac_cv_vm_protect_works=yes
292 >  dnl First the tests that should segfault
293 >  for test_def in NONE_READ NONE_WRITE READ_WRITE; do
294 >    AC_TRY_RUN([
295 >      #define CONFIGURE_TEST_VM_MAP
296 >      #define TEST_VM_PROT_$test_def
297 >      #include "vm_alloc.cpp"
298 >    ], ac_cv_vm_protect_works=no, rm -f core,
299 >    dnl When cross-compiling, do not assume anything
300 >    ac_cv_vm_protect_works="guessing no"
301 >    )
302 >  done
303 >  AC_TRY_RUN([
304 >    #define CONFIGURE_TEST_VM_MAP
305 >    #define TEST_VM_PROT_RDWR_WRITE
306 >    #include "vm_alloc.cpp"
307 >  ], , ac_cv_vm_protect_works=no,
308 >  dnl When cross-compiling, do not assume anything
309 >  ac_cv_vm_protect_works="guessing no"
310 >  )
311 >  AC_LANG_RESTORE
312 >  ]
313 > )
314 >
315 > dnl Remove support for vm_allocate() if vm_protect() does not work
316 > if [[ "x$have_mach_vm" = "xyes" ]]; then
317 >  case $ac_cv_vm_protect_works in
318 >    *yes) have_mach_vm=yes;;
319 >    *no) have_mach_vm=no;;
320 >  esac
321 > fi
322 > AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm",
323 >  [Define if your system has a working vm_allocate()-based memory allocator.])
324 >
325 > fi dnl HAVE_MACH_VM
326 >
327 > dnl Various checks if the system supports mmap() and the like functions.
328 > dnl ... and Mach memory allocators are not supported
329 > have_mmap_vm=no
330 > if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \
331 >      "x$ac_cv_func_mprotect" = "xyes" ]]; then
332 >  if [[ "x$have_mach_vm" = "xno" ]]; then
333 >    have_mmap_vm=yes
334 >  fi
335 > fi
336 > AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm",
337 >  [Define if your system has a working mmap()-based memory allocator.])
338 >
339 > dnl Check that mmap() and associated functions work.
340 > if [[ "x$have_mmap_vm" = "xyes" ]]; then
341 >
342 > dnl Check if we have a working anonymous mmap()
343 > AC_CACHE_CHECK([whether mmap supports MAP_ANON],
344 >  ac_cv_mmap_anon, [
345 >  AC_LANG_SAVE
346 >  AC_LANG_CPLUSPLUS
347 >  AC_TRY_RUN([
348 >    #define HAVE_MMAP_ANON
349 >    #define CONFIGURE_TEST_VM_MAP
350 >    #define TEST_VM_MMAP_ANON
351 >    #include "vm_alloc.cpp"
352 >  ], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no,
353 >  dnl When cross-compiling, do not assume anything.
354 >  ac_cv_mmap_anon="guessing no"
355 >  )
356 >  AC_LANG_RESTORE
357 >  ]
358 > )
359 > AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon",
360 >  [Define if <sys/mman.h> defines MAP_ANON and mmap()'ing with MAP_ANON works.])
361 >
362 > AC_CACHE_CHECK([whether mmap supports MAP_ANONYMOUS],
363 >  ac_cv_mmap_anonymous, [
364 >  AC_LANG_SAVE
365 >  AC_LANG_CPLUSPLUS
366 >  AC_TRY_RUN([
367 >    #define HAVE_MMAP_ANONYMOUS
368 >    #define CONFIGURE_TEST_VM_MAP
369 >    #define TEST_VM_MMAP_ANON
370 >    #include "vm_alloc.cpp"
371 >  ], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no,
372 >  dnl When cross-compiling, do not assume anything.
373 >  ac_cv_mmap_anonymous="guessing no"
374 >  )
375 >  AC_LANG_RESTORE
376 >  ]
377 > )
378 > AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous",
379 >  [Define if <sys/mman.h> defines MAP_ANONYMOUS and mmap()'ing with MAP_ANONYMOUS works.])
380 >
381 > AC_CACHE_CHECK([whether mprotect works],
382 >  ac_cv_mprotect_works, [
383 >  AC_LANG_SAVE
384 >  AC_LANG_CPLUSPLUS
385 >  ac_cv_mprotect_works=yes
386 >  dnl First the tests that should segfault
387 >  for test_def in NONE_READ NONE_WRITE READ_WRITE; do
388 >    AC_TRY_RUN([
389 >      #define CONFIGURE_TEST_VM_MAP
390 >      #define TEST_VM_PROT_$test_def
391 >      #include "vm_alloc.cpp"
392 >    ], ac_cv_mprotect_works=no, rm -f core,
393 >    dnl When cross-compiling, do not assume anything
394 >    ac_cv_mprotect_works="guessing no"
395 >    )
396 >  done
397 >  AC_TRY_RUN([
398 >    #define CONFIGURE_TEST_VM_MAP
399 >    #define TEST_VM_PROT_RDWR_WRITE
400 >    #include "vm_alloc.cpp"
401 >  ], , ac_cv_mprotect_works=no,
402 >  dnl When cross-compiling, do not assume anything
403 >  ac_cv_mprotect_works="guessing no"
404 >  )
405 >  AC_LANG_RESTORE
406 >  ]
407 > )
408 >
409 > dnl Remove support for mmap() if mprotect() does not work
410 > if [[ "x$have_mmap_vm" = "xyes" ]]; then
411 >  case $ac_cv_mprotect_works in
412 >    *yes) have_mmap_vm=yes;;
413 >    *no) have_mmap_vm=no;;
414 >  esac
415 > fi
416 > AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm,
417 >  [Define if your system has a working mmap()-based memory allocator.])
418 >
419 > fi dnl HAVE_MMAP_VM
420 >
421 > dnl Check if we can modify the __PAGEZERO segment for use as Low Memory
422 > AC_CACHE_CHECK([whether __PAGEZERO can be Low Memory area 0x0000-0x3000],
423 >  ac_cv_pagezero_hack, [
424 >  ac_cv_pagezero_hack=no
425 >  if AC_TRY_COMMAND([Darwin/testlmem.sh 0x3000]); then
426 >    ac_cv_pagezero_hack=yes
427 >    dnl might as well skip the test for mmap-able low memory
428 >    ac_cv_can_map_lm=no
429 >  fi
430 > ])
431 > AC_TRANSLATE_DEFINE(PAGEZERO_HACK, "$ac_cv_pagezero_hack",
432 >  [Define if the __PAGEZERO Mach-O Low Memory Globals hack works on this system.])
433 >
434 > dnl Check if we can mmap 0x3000 bytes from 0x0000
435 > AC_CACHE_CHECK([whether we can map Low Memory area 0x0000-0x3000],
436 >  ac_cv_can_map_lm, [
437 >  AC_LANG_SAVE
438 >  AC_LANG_CPLUSPLUS
439 >  AC_TRY_RUN([
440 >    #include "vm_alloc.cpp"
441 >    int main(void) { /* returns 0 if we could map the lowmem globals */
442 >      volatile char * lm = 0;
443 >      if (vm_init() < 0) exit(1);
444 >      if (vm_acquire_fixed(0, 0x2000) < 0) exit(1);
445 >      lm[0] = 'z';
446 >      if (vm_release((char *)lm, 0x2000) < 0) exit(1);
447 >      vm_exit(); exit(0);
448 >    }
449 >  ], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no,
450 >  dnl When cross-compiling, do not assume anything.
451 >  ac_cv_can_map_lm="guessing no"
452 >  )
453 >  AC_LANG_RESTORE
454 >  ]
455 > )
456 >
457 > dnl Check signal handlers need to be reinstalled
458 > AC_CACHE_CHECK([whether signal handlers need to be reinstalled],
459 >  ac_cv_signal_need_reinstall, [
460 >  AC_LANG_SAVE
461 >  AC_LANG_CPLUSPLUS
462 >  AC_TRY_RUN([
463 >    #include <stdlib.h>
464 >    #ifdef HAVE_UNISTD_H
465 >    #include <unistd.h>
466 >    #endif
467 >    #include <signal.h>
468 >    static int handled_signal = 0;
469 >    RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
470 >    int main(void) { /* returns 0 if signals need not to be reinstalled */
471 >      signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
472 >      exit(handled_signal == 2);
473 >    }
474 >  ], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no,
475 >  dnl When cross-compiling, do not assume anything.
476 >  ac_cv_signal_need_reinstall="guessing yes"
477 >  )
478 >  AC_LANG_RESTORE
479 >  ]
480 > )
481 > AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall",
482 >  [Define if your system requires signals to be reinstalled.])
483 >
484 > dnl Check if sigaction handlers need to be reinstalled
485 > AC_CACHE_CHECK([whether sigaction handlers need to be reinstalled],
486 >  ac_cv_sigaction_need_reinstall, [
487 >  AC_LANG_SAVE
488 >  AC_LANG_CPLUSPLUS
489 >  AC_TRY_RUN([
490 >    #include <stdlib.h>
491 >    #ifdef HAVE_UNISTD_H
492 >    #include <unistd.h>
493 >    #endif
494 >    #include <signal.h>
495 >    static int handled_signal = 0;
496 >    RETSIGTYPE sigusr1_handler(int) { handled_signal++; }
497 >    typedef RETSIGTYPE (*signal_handler)(int);
498 >    static signal_handler mysignal(int sig, signal_handler handler) {
499 >      struct sigaction old_sa;
500 >      struct sigaction new_sa;
501 >      new_sa.sa_handler = handler;
502 >      return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler);
503 >    }
504 >    int main(void) { /* returns 0 if signals need not to be reinstalled */
505 >      mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1);
506 >      exit(handled_signal == 2);
507 >    }
508 >  ], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no,
509 >  dnl When cross-compiling, do not assume anything.
510 >  ac_cv_sigaction_need_reinstall="guessing yes"
511 >  )
512 >  AC_LANG_RESTORE
513 >  ]
514 > )
515 > AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall",
516 >  [Define if your system requires sigactions to be reinstalled.])
517 >
518 > dnl Check if Mach exceptions supported.
519 > AC_CACHE_CHECK([whether your system supports Mach exceptions],
520 >  ac_cv_have_mach_exceptions, [
521 >  AC_LANG_SAVE
522 >  AC_LANG_CPLUSPLUS
523 >  AC_TRY_RUN([
524 >    #define HAVE_MACH_EXCEPTIONS 1
525 >    #define CONFIGURE_TEST_SIGSEGV_RECOVERY
526 >    #include "vm_alloc.cpp"
527 >    #include "sigsegv.cpp"
528 >  ], [
529 >  sigsegv_recovery=mach
530 >  ac_cv_have_mach_exceptions=yes
531 >  ],
532 >  ac_cv_have_mach_exceptions=no,
533 >  dnl When cross-compiling, do not assume anything.
534 >  ac_cv_have_mach_exceptions=no
535 >  )
536 >  AC_LANG_RESTORE
537 >  ]
538 > )
539 > AC_TRANSLATE_DEFINE(HAVE_MACH_EXCEPTIONS, "$ac_cv_have_mach_exceptions",
540 >  [Define if your system supports Mach exceptions.])
541 >
542 > dnl Otherwise, check if extended signals are supported.
543 > if [[ -z "$sigsegv_recovery" ]]; then
544 >  AC_CACHE_CHECK([whether your system supports extended signal handlers],
545 >    ac_cv_have_extended_signals, [
546 >    AC_LANG_SAVE
547 >    AC_LANG_CPLUSPLUS
548 >    AC_TRY_RUN([
549 >      #define HAVE_SIGINFO_T 1
550 >      #define CONFIGURE_TEST_SIGSEGV_RECOVERY
551 >      #include "vm_alloc.cpp"
552 >      #include "sigsegv.cpp"
553 >    ], [
554 >    sigsegv_recovery=siginfo
555 >    ac_cv_have_extended_signals=yes
556 >    ],
557 >    ac_cv_have_extended_signals=no,
558 >    dnl When cross-compiling, do not assume anything.
559 >    ac_cv_have_extended_signals=no
560 >    )
561 >    AC_LANG_RESTORE
562 >    ]
563 >  )
564 >  AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals",
565 >    [Define if your system support extended signals.])
566 > fi
567 >
568 > dnl Otherwise, check for subterfuges.
569 > if [[ -z "$sigsegv_recovery" ]]; then
570 >  AC_CACHE_CHECK([whether we then have a subterfuge for your system],
571 >  ac_cv_have_sigcontext_hack, [
572 >    AC_LANG_SAVE
573 >    AC_LANG_CPLUSPLUS
574 >    AC_TRY_RUN([
575 >      #define HAVE_SIGCONTEXT_SUBTERFUGE 1
576 >      #define CONFIGURE_TEST_SIGSEGV_RECOVERY
577 >      #include "vm_alloc.cpp"
578 >      #include "sigsegv.cpp"
579 >    ], [
580 >    sigsegv_recovery=sigcontext
581 >    ac_cv_have_sigcontext_hack=yes
582 >    ],
583 >    ac_cv_have_sigcontext_hack=no,
584 >    dnl When cross-compiling, do not assume anything.
585 >    ac_cv_have_sigcontext_hack=no
586 >    )
587 >    AC_LANG_RESTORE
588 >  ])
589 >  AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack",
590 >    [Define if we know a hack to replace siginfo_t->si_addr member.])
591 > fi
592 >
593 > dnl Check if we can ignore the fault (instruction skipping in SIGSEGV handler)
594 > AC_CACHE_CHECK([whether we can skip instruction in SIGSEGV handler],
595 >  ac_cv_have_skip_instruction, [
596 >  AC_LANG_SAVE
597 >  AC_LANG_CPLUSPLUS
598 >  AC_TRY_RUN([
599 >    #define HAVE_SIGSEGV_SKIP_INSTRUCTION 1
600 >    #define CONFIGURE_TEST_SIGSEGV_RECOVERY
601 >    #include "vm_alloc.cpp"
602 >    #include "sigsegv.cpp"
603 >  ], ac_cv_have_skip_instruction=yes, ac_cv_have_skip_instruction=no,
604 >  dnl When cross-compiling, do not assume anything.
605 >  ac_cv_have_skip_instruction=no
606 >  )
607 >  AC_LANG_RESTORE
608 >  ]
609 > )
610 > AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_INSTRUCTION, "$ac_cv_have_skip_instruction",
611 >  [Define if we can ignore the fault (instruction skipping in SIGSEGV handler).])
612 >
613 > dnl Can we do Video on SEGV Signals ?
614 > CAN_VOSF=no
615 > if [[ -n "$sigsegv_recovery" ]]; then
616 >  CAN_VOSF=yes
617 > fi
618 >
619 > dnl Enable VOSF screen updates with this feature is requested and feasible
620 > if [[ "x$WANT_VOSF" = "xyes" -a "x$CAN_VOSF" = "xyes" ]]; then
621 >    AC_DEFINE(ENABLE_VOSF, 1, [Define if using video enabled on SEGV signals.])
622 > else
623 >    WANT_VOSF=no
624 > fi
625 >
626 > dnl Platform specific binary postprocessor
627 > BLESS=/bin/true
628 > if [[ "x$ac_cv_pagezero_hack" = "xyes" ]]; then
629 >  BLESS=Darwin/lowmem
630 >  LDFLAGS="$LDFLAGS -pagezero_size 0x3000"
631 > fi
632 >
633 > dnl Check for GCC 2.7 or higher.
634 > HAVE_GCC27=no
635 > AC_MSG_CHECKING(for GCC 2.7 or higher)
636 > AC_EGREP_CPP(xyes,
637 > [#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5
638 >  xyes
639 > #endif
640 > ], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no))
641 >
642 > dnl Check for GCC 3.0 or higher.
643 > HAVE_GCC30=no
644 > AC_MSG_CHECKING(for GCC 3.0 or higher)
645 > AC_EGREP_CPP(xyes,
646 > [#if __GNUC__ >= 3
647 >  xyes
648 > #endif
649 > ], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no))
650 >
651 > dnl Check for ICC.
652 > AC_MSG_CHECKING(for ICC)
653 > HAVE_ICC=no
654 > if $CXX -V -v 2>&1 | grep -q "Intel(R) C++ Compiler"; then
655 >  HAVE_ICC=yes
656 > fi
657 > AC_MSG_RESULT($HAVE_ICC)
658 >
659 > # Test if the compiler can generate ELF objects
660 > AC_CACHE_CHECK([whether the compiler can generate ELF objects],
661 >  ac_cv_elf_objects, [
662 >  echo 'int i;' > conftest.$ac_ext
663 >  ac_cv_elf_objects=no
664 >  if AC_TRY_EVAL(ac_compile); then
665 >    case `/usr/bin/file conftest.$ac_objext` in
666 >    *"ELF"*)
667 >      ac_cv_elf_objects=yes
668 >      ;;
669 >    esac
670 >  fi
671 >  rm -rf conftest*
672 > ])
673 > ELF_OBJECTS=$ac_cv_elf_objects
674 >
675 > dnl CPU emulator sources
676 > if [[ "x$EMULATED_PPC" = "xyes" ]]; then
677 >  CPUSRCS="\
678 >    ../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \
679 >    ../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \
680 >    ../kpx_cpu/src/cpu/ppc/ppc-execute.cpp \
681 >    ../kpx_cpu/src/cpu/ppc/ppc-translate.cpp"
682 >  CPPFLAGS="$CPPFLAGS -I../kpx_cpu/include -I../kpx_cpu/src"
683 >
684 >  dnl Enable JIT compiler, if possible
685 >  if [[ "x$WANT_JIT" = "xyes" ]]; then
686 >    AC_CACHE_CHECK([whether dyngen can be used],
687 >      ac_cv_use_dyngen, [
688 >      case $host_cpu:$ELF_OBJECTS in
689 >      powerpc:yes)
690 >        ac_cv_use_dyngen=yes
691 >        ;;
692 >      x86_64:yes)
693 >        ac_cv_use_dyngen=yes
694 >        ;;
695 >      i?86:yes)
696 >        ac_cv_use_dyngen=yes
697 >        ;;
698 >      *:*)
699 >        ac_cv_use_dyngen=no
700 >        ;;
701 >      esac
702 >      dnl Check for a suitable synthetic opcodes compiler (icc is faking itself as gcc 3.2.2)
703 >      if [[ -z "$DYNGEN_CC" ]]; then
704 >        if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then
705 >          DYNGEN_CC=$CXX
706 >        else
707 >          for p in /usr/bin /usr/local/bin; do
708 >            gxx="$p/g++"
709 >            if [[ -x "$gxx" ]]; then
710 >              DYNGEN_CC="$gxx"
711 >            fi
712 >          done
713 >        fi
714 >      fi
715 >      if [[ -z "$DYNGEN_CC" ]] || ! { echo '#include <limits>' | $DYNGEN_CC -xc++ -c -o /dev/null - >& /dev/null; }; then
716 >        ac_cv_use_dyngen=no
717 >      fi
718 >    ])
719 >    if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
720 >      case $host_cpu in
721 >      i?86)
722 >        DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2"
723 >        if [[ "x$HAVE_GCC30" = "xyes" ]]; then
724 >          DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0"
725 >        else
726 >          DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0"
727 >        fi
728 >        ;;
729 >      esac
730 >      DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000"
731 >      if [[ "x$HAVE_GCC30" = "xyes" ]]; then
732 >        DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls"
733 >      fi
734 >    else
735 >      WANT_JIT=no
736 >    fi
737 >    AC_TRANSLATE_DEFINE(ENABLE_DYNGEN, $ac_cv_use_dyngen, [Define to enable dyngen engine])
738 >    if [[ "x$WANT_JIT" = "xyes" ]]; then
739 >      DYNGENSRCS="\
740 >        ../kpx_cpu/src/cpu/jit/dyngen.c \
741 >        ../kpx_cpu/src/cpu/jit/cxxdemangle.cpp"
742 >      CPUSRCS="\
743 >        ../kpx_cpu/src/cpu/jit/jit-cache.cpp \
744 >        ../kpx_cpu/src/cpu/jit/basic-dyngen.cpp \
745 >        ../kpx_cpu/src/cpu/ppc/ppc-dyngen.cpp $CPUSRCS"
746 >    fi
747 >  fi
748 >  CPUSRCS="$CPUSRCS ../kpx_cpu/sheepshaver_glue.cpp"
749   else
750 <  SYSSRCS="../emul_ppc/emul_ppc.cpp"
750 >  WANT_JIT=no
751 > fi
752 > if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then
753 >  AC_CACHE_CHECK([whether static data regions are executable],
754 >    ac_cv_have_static_data_exec, [
755 >    AC_TRY_RUN([int main(void) {
756 > #if defined(__powerpc__)
757 >      static unsigned int p[8] = {0x4e800020,};
758 >      asm volatile("dcbst 0,%0" : : "r" (p) : "memory");
759 >      asm volatile("sync" : : : "memory");
760 >      asm volatile("icbi 0,%0" : : "r" (p) : "memory");
761 >      asm volatile("sync" : : : "memory");
762 >      asm volatile("isync" : : : "memory");
763 >      ((void (*)(void))p)();
764 >      return 0;
765 > #endif
766 >      return 1;
767 >    }], ac_cv_have_static_data_exec=yes, ac_cv_have_static_data_exec=no,
768 >    dnl When cross-compiling, do not assume anything.
769 >    ac_cv_have_static_data_exec=no
770 >    )
771 >  ])
772 > fi
773 > AC_TRANSLATE_DEFINE(HAVE_STATIC_DATA_EXEC, "$ac_cv_have_static_data_exec",
774 >  [Define if your system marks static data pages as executable.])
775 >
776 > if [[ "x$WANT_JIT" = "xyes" ]]; then
777 >  CPPFLAGS="$CPPFLAGS -DUSE_JIT"
778   fi
164 – SYSSRCS="$SYSSRCS $SEMSRCS $UISRCS $MONSRCS"
779  
780   dnl Generate Makefile.
781 + AC_SUBST(DYNGENSRCS)
782 + AC_SUBST(DYNGEN_CC)
783 + AC_SUBST(DYNGEN_OP_FLAGS)
784   AC_SUBST(SYSSRCS)
785 + AC_SUBST(CPUSRCS)
786 + AC_SUBST(BLESS)
787   AC_OUTPUT(Makefile)
788  
789   dnl Print summary.
# Line 173 | Line 792 | echo SheepShaver configuration summary:
792   echo
793   echo XFree86 DGA support .............. : $WANT_XF86_DGA
794   echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE
795 + echo Using PowerPC emulator ........... : $EMULATED_PPC
796 + echo Enable JIT compiler .............. : $WANT_JIT
797 + echo Enable video on SEGV signals ..... : $WANT_VOSF
798   echo ESD sound support ................ : $WANT_ESD
799   echo GTK user interface ............... : $WANT_GTK
800   echo mon debugger support ............. : $WANT_MON
801 + echo Bad memory access recovery type .. : $sigsegv_recovery
802   echo
803   echo "Configuration done. Now type \"make\"."

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