| 10 |
|
AC_ARG_ENABLE(xf86-vidmode, [ --enable-xf86-vidmode use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes]) |
| 11 |
|
AC_ARG_ENABLE(fbdev-dga, [ --enable-fbdev-dga use direct frame buffer access via /dev/fb [default=yes]], [WANT_FBDEV_DGA=$enableval], [WANT_FBDEV_DGA=yes]) |
| 12 |
|
AC_ARG_ENABLE(vosf, [ --enable-vosf enable video on SEGV signals [default=no]], [WANT_VOSF=$enableval], [WANT_VOSF=no]) |
| 13 |
< |
AC_ARG_ENABLE(16bit-vidmode, [ --enable-16bit-vidmode enable 16-bit video if possible [default=yes]], [WANT_16BIT_VIDMODE=$enableval], [WANT_16BIT_VIDMODE=yes]) |
| 13 |
> |
|
| 14 |
> |
dnl Addressing modes. |
| 15 |
|
AC_ARG_ENABLE(addressing, |
| 16 |
< |
[ --enable-addressing=mode specify the addressing mode to use [default=fastest]], |
| 16 |
> |
[ --enable-addressing=AM specify the addressing mode to use [default=fastest]], |
| 17 |
|
[ case "$enableval" in |
| 18 |
|
real) ADDRESSING_TEST_ORDER="real";; |
| 19 |
|
direct) ADDRESSING_TEST_ORDER="direct";; |
| 20 |
|
banks) ADDRESSING_TEST_ORDER="banks";; |
| 21 |
< |
dnl fastest) ADDRESSING_TEST_ORDER="real direct banks";; gb-- will enable later... |
| 22 |
< |
fastest) ADDRESSING_TEST_ORDER="direct banks";; |
| 22 |
< |
*) AC_MSG_ERROR([--enable-mem-addressing takes only one of the following values: fastest, real, direct, banks]);; |
| 21 |
> |
fastest)ADDRESSING_TEST_ORDER="direct banks";; |
| 22 |
> |
*) AC_MSG_ERROR([--enable-addressing takes only one of the following values: fastest, real, direct, banks]);; |
| 23 |
|
esac |
| 24 |
|
], |
| 25 |
– |
dnl [ ADDRESSING_TEST_ORDER="real direct banks" gb-- will probably reactivate later |
| 25 |
|
[ ADDRESSING_TEST_ORDER="direct banks" |
| 26 |
|
]) |
| 27 |
+ |
|
| 28 |
+ |
dnl External packages. |
| 29 |
|
AC_ARG_WITH(esd, [ --with-esd support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes]) |
| 30 |
|
AC_ARG_WITH(gtk, [ --with-gtk use GTK user interface [default=yes]], [WANT_GTK=$withval], [WANT_GTK=yes]) |
| 31 |
|
AC_ARG_WITH(mon, [ --with-mon use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes]) |
| 48 |
|
HAVE_I386=no |
| 49 |
|
HAVE_M68K=no |
| 50 |
|
HAVE_SPARC=no |
| 51 |
+ |
HAVE_POWERPC=no |
| 52 |
|
case "$target_cpu" in |
| 53 |
|
i386* | i486* | i586* | i686* | i786* ) CPU_TYPE=i386 HAVE_I386=yes;; |
| 54 |
|
m68k* ) CPU_TYPE=m68k HAVE_M68K=yes;; |
| 55 |
|
sparc* ) CPU_TYPE=sparc HAVE_SPARC=yes;; |
| 56 |
+ |
powerpc* ) CPU_TYPE=powerpc HAVE_POWERPC=yes;; |
| 57 |
|
*) CPU_TYPE=`echo $target_cpu | sed -e 's/-/_/'`;; |
| 58 |
|
esac |
| 59 |
|
DEFINES="$DEFINES -DCPU_$CPU_TYPE" |
| 397 |
|
AC_LANG_RESTORE |
| 398 |
|
]) |
| 399 |
|
AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, $ac_cv_have_sigcontext_hack) |
| 400 |
+ |
elif [[ "x$HAVE_POWERPC" = "xyes" ]]; then |
| 401 |
+ |
AC_CACHE_CHECK("whether we then have a subterfuge for your system", |
| 402 |
+ |
ac_cv_have_sigcontext_hack, [ |
| 403 |
+ |
AC_LANG_SAVE |
| 404 |
+ |
AC_LANG_CPLUSPLUS |
| 405 |
+ |
AC_TRY_RUN([ |
| 406 |
+ |
#include <unistd.h> |
| 407 |
+ |
#include <signal.h> |
| 408 |
+ |
#include <fcntl.h> |
| 409 |
+ |
#include <sys/mman.h> |
| 410 |
+ |
|
| 411 |
+ |
static volatile caddr_t mem = 0; |
| 412 |
+ |
static int zero_fd = -1; |
| 413 |
+ |
|
| 414 |
+ |
static RETSIGTYPE segfault_handler(int, struct sigcontext_struct *scs) |
| 415 |
+ |
{ if ((caddr_t)(scs->regs->dar) != mem) exit(1); |
| 416 |
+ |
munmap(mem, getpagesize()); close(zero_fd); exit(0); } |
| 417 |
+ |
|
| 418 |
+ |
int main() |
| 419 |
+ |
{ if ((zero_fd = open("/dev/zero", O_RDWR)) < 0) exit(1); |
| 420 |
+ |
if ((mem = (caddr_t)mmap(0, getpagesize(), PROT_READ, MAP_PRIVATE, zero_fd, 0)) == (caddr_t)MAP_FAILED) exit(1); |
| 421 |
+ |
struct sigaction sa; sa.sa_flags = 0; |
| 422 |
+ |
sa.sa_handler = (RETSIGTYPE (*)(int))segfault_handler; |
| 423 |
+ |
sigaction(SIGSEGV, &sa, 0); |
| 424 |
+ |
mem[0] = 0; |
| 425 |
+ |
exit(1); // should not be reached |
| 426 |
+ |
} |
| 427 |
+ |
], |
| 428 |
+ |
[ac_cv_have_sigcontext_hack=yes], |
| 429 |
+ |
[ac_cv_have_sigcontext_hack=no] |
| 430 |
+ |
) |
| 431 |
+ |
AC_LANG_RESTORE |
| 432 |
+ |
]) |
| 433 |
+ |
AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, $ac_cv_have_sigcontext_hack) |
| 434 |
|
fi |
| 435 |
|
;; |
| 436 |
|
netbsd*) |
| 488 |
|
for am in $ADDRESSING_TEST_ORDER; do |
| 489 |
|
case $am in |
| 490 |
|
real) |
| 491 |
< |
dnl Requires ability to mmap Low Memory globals. |
| 491 |
> |
dnl Requires ability to mmap() Low Memory globals |
| 492 |
|
if [[ "x$ac_cv_can_map_lm" = "xno" ]]; then |
| 493 |
|
continue |
| 494 |
|
fi |
| 495 |
< |
if [[ "x$ac_cv_c_bigendian" = "xyes" ]]; then |
| 496 |
< |
dnl Requires only VOSF if 16-bit vidmode enable |
| 497 |
< |
if [[ "x$WANT_16BIT_VIDMODE" = "xyes" ]]; then |
| 461 |
< |
if [[ "x$CAN_VOSF" = "xno" ]]; then |
| 462 |
< |
continue |
| 463 |
< |
fi |
| 464 |
< |
else |
| 465 |
< |
DEFINES="$DEFINES -DDISABLE_16BIT_VIDMODE" |
| 466 |
< |
fi |
| 467 |
< |
else |
| 468 |
< |
dnl Requires VOSF |
| 469 |
< |
if [[ "x$CAN_VOSF" = "xno" ]]; then |
| 470 |
< |
continue |
| 471 |
< |
fi |
| 495 |
> |
dnl Requires VOSF screen updates |
| 496 |
> |
if [[ "x$CAN_VOSF" = "xno" ]]; then |
| 497 |
> |
continue |
| 498 |
|
fi |
| 499 |
< |
dnl Real addressing will probably work |
| 499 |
> |
dnl Real addressing will probably work. |
| 500 |
|
ADDRESSING_MODE="real" |
| 501 |
|
WANT_VOSF=yes dnl we can use VOSF and we need it actually |
| 502 |
|
DEFINES="$DEFINES -DREAL_ADDRESSING" |
| 503 |
|
break |
| 504 |
|
;; |
| 505 |
|
direct) |
| 506 |
< |
dnl Requires VOSF |
| 506 |
> |
dnl Requires VOSF screen updates |
| 507 |
|
if [[ "x$CAN_VOSF" = "xyes" ]]; then |
| 508 |
|
ADDRESSING_MODE="direct" |
| 509 |
|
WANT_VOSF=yes dnl we can use VOSF and we need it actually |
| 527 |
|
fi |
| 528 |
|
fi |
| 529 |
|
|
| 530 |
< |
dnl Since real and direct addressing modes automatically activate VOSF, |
| 531 |
< |
dnl I put this test here. |
| 506 |
< |
if [[ "x$WANT_VOSF" = "xyes" ]]; then |
| 507 |
< |
if [[ "x$CAN_VOSF" = "xno" ]]; then |
| 508 |
< |
AC_MSG_WARN([Sorry, your system does not support Video on SEGV signals]) |
| 509 |
< |
WANT_VOSF=no |
| 510 |
< |
else |
| 530 |
> |
dnl Enable VOSF screen updates with this feature is requested and feasible |
| 531 |
> |
if [[ "x$WANT_VOSF" = "xyes" -a "x$CAN_VOSF" = "xyes" ]]; then |
| 532 |
|
AC_DEFINE(ENABLE_VOSF) |
| 533 |
< |
fi |
| 533 |
> |
else |
| 534 |
> |
WANT_VOSF=no |
| 535 |
|
fi |
| 536 |
|
|
| 537 |
|
dnl Check for GAS. |
