--- SheepShaver/src/Unix/configure.in 2002/02/04 16:58:13 1.1.1.1 +++ SheepShaver/src/Unix/configure.in 2004/06/30 08:45:14 1.31 @@ -5,12 +5,24 @@ AC_INIT(main_unix.cpp) AC_PREREQ(2.12) AC_CONFIG_HEADER(config.h) +dnl Canonical system information. +AC_CANONICAL_HOST +AC_CANONICAL_TARGET + dnl Options. +AC_ARG_ENABLE(jit, [ --enable-jit enable JIT compiler [default=yes]], [WANT_JIT=$enableval], [WANT_JIT=yes]) +AC_ARG_ENABLE(ppc-emulator, [ --enable-ppc-emulator use the selected PowerPC emulator [default=auto]], [WANT_EMULATED_PPC=$enableval], [WANT_EMULATED_PPC=auto]) AC_ARG_ENABLE(xf86-dga, [ --enable-xf86-dga use the XFree86 DGA extension [default=yes]], [WANT_XF86_DGA=$enableval], [WANT_XF86_DGA=yes]) -AC_ARG_ENABLE(xf86-vidmode, [ --enable-xf86-vidmode use the XFree86 VidMode extension [default=yes]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=yes]) +AC_ARG_ENABLE(xf86-vidmode, [ --enable-xf86-vidmode use the XFree86 VidMode extension [default=no]], [WANT_XF86_VIDMODE=$enableval], [WANT_XF86_VIDMODE=no]) +AC_ARG_ENABLE(vosf, [ --enable-vosf enable video on SEGV signals [default=yes]], [WANT_VOSF=$enableval], [WANT_VOSF=yes]) AC_ARG_WITH(esd, [ --with-esd support ESD for sound under Linux/FreeBSD [default=yes]], [WANT_ESD=$withval], [WANT_ESD=yes]) AC_ARG_WITH(gtk, [ --with-gtk use GTK user interface [default=yes]], [WANT_GTK=$withval], [WANT_GTK=yes]) AC_ARG_WITH(mon, [ --with-mon use mon as debugger [default=yes]], [WANT_MON=$withval], [WANT_MON=yes]) +AC_ARG_WITH(dgcc, [ --with-dgcc=COMPILER use C++ COMPILER to compile synthetic opcodes], [DYNGEN_CC=$withval]) + +dnl SDL options. +AC_ARG_ENABLE(sdl-static, [ --enable-sdl-static use SDL static libraries for linking [default=no]], [WANT_SDL_STATIC=$enableval], [WANT_SDL_STATIC=no]) +AC_ARG_ENABLE(sdl-video, [ --enable-sdl-video use SDL for video graphics [default=no]], [WANT_SDL_VIDEO=$enableval], [WANT_SDL_VIDEO=no]) dnl Checks for programs. AC_PROG_CC @@ -27,20 +39,46 @@ AC_EGREP_CPP(yes, #ifdef __powerpc__ yes #endif +#ifdef __ppc__ + yes +#endif ], [AC_MSG_RESULT(yes); HAVE_PPC=yes], AC_MSG_RESULT(no)) +dnl We use native CPU if possible. +EMULATED_PPC=yes +case $WANT_EMULATED_PPC in + auto) [[ "x$HAVE_PPC" = "xyes" ]] && EMULATED_PPC=no;; + no) EMULATED_PPC=no;; +esac +if [[ "x$EMULATED_PPC" = "xyes" ]]; then + AC_DEFINE(EMULATED_PPC) +fi + dnl We use mon if possible. MONSRCS= +case "x$WANT_MON" in +x/* | x.*) + mon_srcdir=$WANT_MON + WANT_MON=yes + ;; +xyes) + mon_srcdir=../../../mon/src + ;; +esac if [[ "x$WANT_MON" = "xyes" ]]; then AC_MSG_CHECKING(for mon) - mon_srcdir=../../../mon/src if grep mon_init $mon_srcdir/mon.h >/dev/null 2>/dev/null; then AC_MSG_RESULT(yes) AC_DEFINE(ENABLE_MON) MONSRCS="$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 $mon_srcdir/disass/m68k-opc.c" CXXFLAGS="$CXXFLAGS -I$mon_srcdir -I$mon_srcdir/disass" + AC_CHECK_LIB(ncurses, tgetent, , + AC_CHECK_LIB(termcap, tgetent, , + AC_CHECK_LIB(termlib, tgetent, , + AC_CHECK_LIB(terminfo, tgetent, , + AC_CHECK_LIB(Hcurses, tgetent, , + AC_CHECK_LIB(curses, tgetent)))))) AC_CHECK_LIB(readline, readline) - AC_CHECK_LIB(termcap, tputs) AC_CHECK_HEADERS(readline.h history.h readline/readline.h readline/history.h) else AC_MSG_RESULT(no) @@ -52,18 +90,52 @@ fi dnl Checks for libraries. AC_CHECK_LIB(posix4, sem_init) -dnl We need X11. -AC_PATH_XTRA -if [[ "x$no_x" = "xyes" ]]; then - AC_MSG_ERROR([You need X11 to run SheepShaver.]) -fi -CFLAGS="$CFLAGS $X_CFLAGS" -CXXFLAGS="$CXXFLAGS $X_CFLAGS" -LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -lXext $X_EXTRA_LIBS" +dnl Do we need SDL? +WANT_SDL=no +SDL_SUPPORT="none" +if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then + WANT_SDL=yes + WANT_XF86_DGA=no + WANT_XF86_VIDMODE=no + WANT_FBDEV_DGA=no + SDL_SUPPORT="video" +fi +if [[ "x$WANT_SDL" = "xyes" ]]; then + AC_PATH_PROG(sdl_config, "sdl-config") + if [[ -n "$sdl_config" ]]; then + sdl_cflags=`$sdl_config --cflags` + if [[ "x$WANT_SDL_STATIC" = "xyes" ]]; then + sdl_libs=`$sdl_config --static-libs` + else + sdl_libs=`$sdl_config --libs` + fi + CFLAGS="$CFLAGS $sdl_cflags" + CXXFLAGS="$CXXFLAGS $sdl_cflags" + LIBS="$LIBS $sdl_libs" + else + WANT_SDL=no + fi +fi + +dnl We need X11, if not using SDL. +if [[ "x$WANT_SDL" = "xno" ]]; then + AC_PATH_XTRA + if [[ "x$no_x" = "xyes" ]]; then + AC_MSG_ERROR([You need X11 to run SheepShaver.]) + fi + CFLAGS="$CFLAGS $X_CFLAGS" + CXXFLAGS="$CXXFLAGS $X_CFLAGS" + LIBS="$LIBS $X_PRE_LIBS $X_LIBS -lX11 -lXext $X_EXTRA_LIBS" +fi dnl We need pthreads on non-PowerPC systems. Try libpthread first, then libc_r (FreeBSD), then PTL. HAVE_PTHREADS=yes -if [[ "x$HAVE_PPC" = "xno" ]]; then +case $EMULATED_PPC:$target_os in +no:linux*) + dnl We do have our own pthread_cancel() implementation + AC_DEFINE(HAVE_PTHREAD_CANCEL, 1, [Define if you have the pthread_cancel function.]) + ;; +*:*) AC_CHECK_LIB(pthread, pthread_create, , [ AC_CHECK_LIB(c_r, pthread_create, , [ AC_CHECK_LIB(PTL, pthread_create, , [ @@ -72,15 +144,21 @@ if [[ "x$HAVE_PPC" = "xno" ]]; then ]) ]) AC_CHECK_FUNCS(pthread_cancel) -fi - -dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes. -SEMSRC= -AC_CHECK_FUNCS(sem_init, , [ + AC_CHECK_FUNCS(pthread_mutexattr_setprotocol) + AC_CHECK_FUNCS(pthread_mutexattr_settype) + AC_CHECK_FUNCS(pthread_mutexattr_setpshared) if [[ "x$HAVE_PTHREADS" = "xyes" ]]; then + AC_DEFINE(HAVE_PTHREADS, 1, [Define if pthreads are available.]) + fi + dnl If POSIX.4 semaphores are not available, we emulate them with pthread mutexes. + SEMSRC= + AC_CHECK_FUNCS(sem_init, , [ + if test "x$HAVE_PTHREADS" = "xyes"; then SEMSRC=posix_sem.cpp fi -]) + ]) + ;; +esac dnl We use XFree86 DGA if possible. if [[ "x$WANT_XF86_DGA" = "xyes" ]]; then @@ -105,7 +183,7 @@ if [[ "x$WANT_XF86_VIDMODE" = "xyes" ]]; fi dnl We use GTK+ if possible. -UISRCS= +UISRCS=../dummy/prefs_editor_dummy.cpp if [[ "x$WANT_GTK" = "xyes" ]]; then AM_PATH_GTK(1.2.0, [ AC_DEFINE(ENABLE_GTK) @@ -135,7 +213,10 @@ fi dnl Checks for header files. AC_HEADER_STDC AC_HEADER_SYS_WAIT -AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h) +AC_CHECK_HEADERS(mach/vm_map.h mach/mach_init.h sys/mman.h) +AC_CHECK_HEADERS(sys/time.h sys/times.h) +AC_CHECK_HEADERS(unistd.h fcntl.h byteswap.h) +AC_CHECK_HEADERS(linux/if.h linux/if_tun.h net/if.h net/if_tun.h) dnl Checks for typedefs, structures, and compiler characteristics. AC_C_BIGENDIAN @@ -145,36 +226,697 @@ AC_CHECK_SIZEOF(short, 2) AC_CHECK_SIZEOF(int, 4) AC_CHECK_SIZEOF(long, 4) AC_CHECK_SIZEOF(long long, 8) +AC_CHECK_SIZEOF(float, 4) +AC_CHECK_SIZEOF(double, 8) +AC_CHECK_SIZEOF(void *, 4) AC_TYPE_OFF_T AC_CHECK_TYPE(loff_t, off_t) AC_TYPE_SIZE_T +AC_TYPE_SIGNAL AC_HEADER_TIME AC_STRUCT_TM +dnl Check whether struct sigaction has sa_restorer member. +AC_CACHE_CHECK([whether struct sigaction has sa_restorer], + ac_cv_signal_sa_restorer, [ + AC_TRY_COMPILE([ + #include + ], [struct sigaction sa; sa.sa_restorer = 0;], + ac_cv_signal_sa_restorer=yes, ac_cv_signal_sa_restorer=no, + dnl When cross-compiling, do not assume anything. + ac_cv_signal_sa_restorer=no + ) +]) +if [[ "x$ac_cv_signal_sa_restorer" = "xyes" ]]; then + AC_DEFINE(HAVE_SIGNAL_SA_RESTORER) +fi + dnl Checks for library functions. -AC_CHECK_FUNCS(strdup cfmakeraw) -AC_CHECK_FUNCS(nanosleep clock_gettime timer_create) +AC_CHECK_FUNCS(strdup strlcpy cfmakeraw) +AC_CHECK_FUNCS(nanosleep) +AC_CHECK_FUNCS(sigaction signal) +AC_CHECK_FUNCS(mmap mprotect munmap) +AC_CHECK_FUNCS(vm_allocate vm_deallocate vm_protect) +AC_CHECK_FUNCS(posix_memalign memalign valloc) + +dnl Darwin seems to define mach_task_self() instead of task_self(). +AC_CHECK_FUNCS(mach_task_self task_self) + +dnl We need clock_gettime() for better performance but it may drag +dnl libpthread in, which we don't want for native ppc mode +case $EMULATED_PPC:$target_os in +no:linux*) + ;; +*:*) + AC_SEARCH_LIBS(clock_gettime, [rt posix4]) + AC_CHECK_FUNCS(clock_gettime) + ;; +esac + +dnl AC_CHECK_FRAMEWORK($1=NAME, $2=INCLUDES) +AC_DEFUN(AC_CHECK_FRAMEWORK, [ + AS_VAR_PUSHDEF([ac_Framework], [ac_cv_framework_$1])dnl + AC_CACHE_CHECK([whether compiler supports framework $1], + ac_Framework, [ + saved_LIBS="$LIBS" + LIBS="$LIBS -framework $1" + AC_TRY_LINK( + [$2], [int main(void) { return 0; }], + [AS_VAR_SET(ac_Framework, yes)], [AS_VAR_SET(ac_Framework, no); LIBS="$saved_LIBS"] + ) + ]) + AS_IF([test AS_VAR_GET(ac_Framework) = yes], + [AC_DEFINE(AS_TR_CPP(HAVE_FRAMEWORK_$1), 1, [Define if framework $1 is available.])] + ) + AS_VAR_POPDEF([ac_Framework])dnl +]) + +dnl Check for some MacOS X frameworks +AC_CHECK_FRAMEWORK(Carbon, [#include ]) +AC_CHECK_FRAMEWORK(IOKit, [#include ]) dnl Select system-dependant sources. -if [[ "x$HAVE_PPC" = "xyes" ]]; then - SYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S" +SERIALSRC=serial_unix.cpp +ETHERSRC=../dummy/ether_dummy.cpp +SCSISRC=../dummy/scsi_dummy.cpp +AUDIOSRC=../dummy/audio_dummy.cpp +EXTRASYSSRCS= +case "$target_os" in +linux*) + ETHERSRC=Linux/ether_linux.cpp + AUDIOSRC=audio_oss_esd.cpp + SCSISRC=Linux/scsi_linux.cpp + if [[ "x$EMULATED_PPC" = "xno" ]]; then + EXTRASYSSRCS="Linux/paranoia.cpp Linux/sheepthreads.c Linux/asm_linux.S" + fi + ;; +darwin*) + if [[ "x$EMULATED_PPC" = "xno" ]]; then + EXTRASYSSRCS="Darwin/paranoia.cpp Linux/asm_linux.S" + fi + if [[ "x$ac_cv_framework_IOKit" = "xyes" ]]; then + EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/sys_darwin.cpp" + fi + ;; +esac + +dnl SDL overrides +if [[ "x$WANT_SDL" = "xyes" ]]; then + AC_DEFINE(USE_SDL, 1, [Define to enble SDL support]) +fi +if [[ "x$WANT_SDL_VIDEO" = "xyes" ]]; then + VIDEOSRCS="../SDL/video_sdl.cpp" + AC_DEFINE(USE_SDL_VIDEO, 1, [Define to enable SDL video graphics support]) + KEYCODES="../SDL/keycodes" + if [[ "x$ac_cv_framework_Carbon" = "xyes" ]]; then + EXTRASYSSRCS="$EXTRASYSSRCS ../MacOSX/clip_macosx.cpp" + else + EXTRASYSSRCS="$EXTRASYSSRCS ../dummy/clip_dummy.cpp" + fi +else + VIDEOSRCS="video_x.cpp" + KEYCODES="keycodes" + EXTRASYSSRCS="$EXTRASYSSRCS clip_unix.cpp" +fi + +SYSSRCS="$VIDEOSRCS $SERIALSRC $ETHERSRC $SCSISRC $AUDIOSRC $SEMSRC $UISRCS $MONSRCS $EXTRASYSSRCS" + +dnl Define a macro that translates a yesno-variable into a C macro definition +dnl to be put into the config.h file +dnl $1 -- the macro to define +dnl $2 -- the value to translate +dnl $3 -- template name +AC_DEFUN(AC_TRANSLATE_DEFINE, [ + if [[ "x$2" = "xyes" -o "x$2" = "xguessing yes" ]]; then + AC_DEFINE($1, 1, $3) + fi +]) + +dnl Check that the host supports TUN/TAP devices +AC_CACHE_CHECK([whether TUN/TAP is supported], + ac_cv_tun_tap_support, [ + AC_TRY_COMPILE([ + #if defined(HAVE_LINUX_IF_H) && defined(HAVE_LINUX_IF_TUN_H) + #include + #include + #endif + #if defined(HAVE_NET_IF_H) && defined(HAVE_NET_IF_TUN_H) + #include + #include + #endif + ], [ + struct ifreq ifr; + memset(&ifr, 0, sizeof(ifr)); + ifr.ifr_flags = IFF_TAP | IFF_NO_PI; + ], + ac_cv_tun_tap_support=yes, ac_cv_tun_tap_support=no + ) +]) +AC_TRANSLATE_DEFINE(ENABLE_TUNTAP, "$ac_cv_tun_tap_support", + [Define if your system supports TUN/TAP devices.]) + +dnl Various checks if the system supports vm_allocate() and the like functions. +have_mach_vm=no +if [[ "x$ac_cv_func_vm_allocate" = "xyes" -a "x$ac_cv_func_vm_deallocate" = "xyes" -a \ + "x$ac_cv_func_vm_protect" = "xyes" ]]; then + have_mach_vm=yes +fi +AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm", + [Define if your system has a working vm_allocate()-based memory allocator.]) + +dnl Check that vm_allocate(), vm_protect() work +if [[ "x$have_mach_vm" = "xyes" ]]; then + +AC_CACHE_CHECK([whether vm_protect works], + ac_cv_vm_protect_works, [ + AC_LANG_SAVE + AC_LANG_CPLUSPLUS + ac_cv_vm_protect_works=yes + dnl First the tests that should segfault + for test_def in NONE_READ NONE_WRITE READ_WRITE; do + AC_TRY_RUN([ + #define CONFIGURE_TEST_VM_MAP + #define TEST_VM_PROT_$test_def + #include "vm_alloc.cpp" + ], ac_cv_vm_protect_works=no, rm -f core, + dnl When cross-compiling, do not assume anything + ac_cv_vm_protect_works="guessing no" + ) + done + AC_TRY_RUN([ + #define CONFIGURE_TEST_VM_MAP + #define TEST_VM_PROT_RDWR_WRITE + #include "vm_alloc.cpp" + ], , ac_cv_vm_protect_works=no, + dnl When cross-compiling, do not assume anything + ac_cv_vm_protect_works="guessing no" + ) + AC_LANG_RESTORE + ] +) + +dnl Remove support for vm_allocate() if vm_protect() does not work +if [[ "x$have_mach_vm" = "xyes" ]]; then + case $ac_cv_vm_protect_works in + *yes) have_mach_vm=yes;; + *no) have_mach_vm=no;; + esac +fi +AC_TRANSLATE_DEFINE(HAVE_MACH_VM, "$have_mach_vm", + [Define if your system has a working vm_allocate()-based memory allocator.]) + +fi dnl HAVE_MACH_VM + +dnl Various checks if the system supports mmap() and the like functions. +dnl ... and Mach memory allocators are not supported +have_mmap_vm=no +if [[ "x$ac_cv_func_mmap" = "xyes" -a "x$ac_cv_func_munmap" = "xyes" -a \ + "x$ac_cv_func_mprotect" = "xyes" ]]; then + if [[ "x$have_mach_vm" = "xno" ]]; then + have_mmap_vm=yes + fi +fi +AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, "$have_mmap_vm", + [Define if your system has a working mmap()-based memory allocator.]) + +dnl Check that mmap() and associated functions work. +if [[ "x$have_mmap_vm" = "xyes" ]]; then + +dnl Check if we have a working anonymous mmap() +AC_CACHE_CHECK([whether mmap supports MAP_ANON], + ac_cv_mmap_anon, [ + AC_LANG_SAVE + AC_LANG_CPLUSPLUS + AC_TRY_RUN([ + #define HAVE_MMAP_ANON + #define CONFIGURE_TEST_VM_MAP + #define TEST_VM_MMAP_ANON + #include "vm_alloc.cpp" + ], ac_cv_mmap_anon=yes, ac_cv_mmap_anon=no, + dnl When cross-compiling, do not assume anything. + ac_cv_mmap_anon="guessing no" + ) + AC_LANG_RESTORE + ] +) +AC_TRANSLATE_DEFINE(HAVE_MMAP_ANON, "$ac_cv_mmap_anon", + [Define if defines MAP_ANON and mmap()'ing with MAP_ANON works.]) + +AC_CACHE_CHECK([whether mmap supports MAP_ANONYMOUS], + ac_cv_mmap_anonymous, [ + AC_LANG_SAVE + AC_LANG_CPLUSPLUS + AC_TRY_RUN([ + #define HAVE_MMAP_ANONYMOUS + #define CONFIGURE_TEST_VM_MAP + #define TEST_VM_MMAP_ANON + #include "vm_alloc.cpp" + ], ac_cv_mmap_anonymous=yes, ac_cv_mmap_anonymous=no, + dnl When cross-compiling, do not assume anything. + ac_cv_mmap_anonymous="guessing no" + ) + AC_LANG_RESTORE + ] +) +AC_TRANSLATE_DEFINE(HAVE_MMAP_ANONYMOUS, "$ac_cv_mmap_anonymous", + [Define if defines MAP_ANONYMOUS and mmap()'ing with MAP_ANONYMOUS works.]) + +AC_CACHE_CHECK([whether mprotect works], + ac_cv_mprotect_works, [ + AC_LANG_SAVE + AC_LANG_CPLUSPLUS + ac_cv_mprotect_works=yes + dnl First the tests that should segfault + for test_def in NONE_READ NONE_WRITE READ_WRITE; do + AC_TRY_RUN([ + #define CONFIGURE_TEST_VM_MAP + #define TEST_VM_PROT_$test_def + #include "vm_alloc.cpp" + ], ac_cv_mprotect_works=no, rm -f core, + dnl When cross-compiling, do not assume anything + ac_cv_mprotect_works="guessing no" + ) + done + AC_TRY_RUN([ + #define CONFIGURE_TEST_VM_MAP + #define TEST_VM_PROT_RDWR_WRITE + #include "vm_alloc.cpp" + ], , ac_cv_mprotect_works=no, + dnl When cross-compiling, do not assume anything + ac_cv_mprotect_works="guessing no" + ) + AC_LANG_RESTORE + ] +) + +dnl Remove support for mmap() if mprotect() does not work +if [[ "x$have_mmap_vm" = "xyes" ]]; then + case $ac_cv_mprotect_works in + *yes) have_mmap_vm=yes;; + *no) have_mmap_vm=no;; + esac +fi +AC_TRANSLATE_DEFINE(HAVE_MMAP_VM, $have_mmap_vm, + [Define if your system has a working mmap()-based memory allocator.]) + +fi dnl HAVE_MMAP_VM + +dnl Check if we can modify the __PAGEZERO segment for use as Low Memory +AC_CACHE_CHECK([whether __PAGEZERO can be Low Memory area 0x0000-0x3000], + ac_cv_pagezero_hack, [ + ac_cv_pagezero_hack=no + if AC_TRY_COMMAND([Darwin/testlmem.sh 0x3000]); then + ac_cv_pagezero_hack=yes + dnl might as well skip the test for mmap-able low memory + ac_cv_can_map_lm=no + fi +]) +AC_TRANSLATE_DEFINE(PAGEZERO_HACK, "$ac_cv_pagezero_hack", + [Define if the __PAGEZERO Mach-O Low Memory Globals hack works on this system.]) + +dnl Check if we can mmap 0x3000 bytes from 0x0000 +AC_CACHE_CHECK([whether we can map Low Memory area 0x0000-0x3000], + ac_cv_can_map_lm, [ + AC_LANG_SAVE + AC_LANG_CPLUSPLUS + AC_TRY_RUN([ + #include "vm_alloc.cpp" + int main(void) { /* returns 0 if we could map the lowmem globals */ + volatile char * lm = 0; + if (vm_init() < 0) exit(1); + if (vm_acquire_fixed(0, 0x2000) < 0) exit(1); + lm[0] = 'z'; + if (vm_release((char *)lm, 0x2000) < 0) exit(1); + vm_exit(); exit(0); + } + ], ac_cv_can_map_lm=yes, ac_cv_can_map_lm=no, + dnl When cross-compiling, do not assume anything. + ac_cv_can_map_lm="guessing no" + ) + AC_LANG_RESTORE + ] +) + +dnl Check signal handlers need to be reinstalled +AC_CACHE_CHECK([whether signal handlers need to be reinstalled], + ac_cv_signal_need_reinstall, [ + AC_LANG_SAVE + AC_LANG_CPLUSPLUS + AC_TRY_RUN([ + #include + #ifdef HAVE_UNISTD_H + #include + #endif + #include + static int handled_signal = 0; + RETSIGTYPE sigusr1_handler(int) { handled_signal++; } + int main(void) { /* returns 0 if signals need not to be reinstalled */ + signal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1); + exit(handled_signal == 2); + } + ], ac_cv_signal_need_reinstall=yes, ac_cv_signal_need_reinstall=no, + dnl When cross-compiling, do not assume anything. + ac_cv_signal_need_reinstall="guessing yes" + ) + AC_LANG_RESTORE + ] +) +AC_TRANSLATE_DEFINE(SIGNAL_NEED_REINSTALL, "$ac_cv_signal_need_reinstall", + [Define if your system requires signals to be reinstalled.]) + +dnl Check if sigaction handlers need to be reinstalled +AC_CACHE_CHECK([whether sigaction handlers need to be reinstalled], + ac_cv_sigaction_need_reinstall, [ + AC_LANG_SAVE + AC_LANG_CPLUSPLUS + AC_TRY_RUN([ + #include + #ifdef HAVE_UNISTD_H + #include + #endif + #include + static int handled_signal = 0; + RETSIGTYPE sigusr1_handler(int) { handled_signal++; } + typedef RETSIGTYPE (*signal_handler)(int); + static signal_handler mysignal(int sig, signal_handler handler) { + struct sigaction old_sa; + struct sigaction new_sa; + new_sa.sa_handler = handler; + return ((sigaction(sig,&new_sa,&old_sa) < 0) ? SIG_IGN : old_sa.sa_handler); + } + int main(void) { /* returns 0 if signals need not to be reinstalled */ + mysignal(SIGUSR1, sigusr1_handler); raise(SIGUSR1); raise(SIGUSR1); + exit(handled_signal == 2); + } + ], ac_cv_sigaction_need_reinstall=yes, ac_cv_sigaction_need_reinstall=no, + dnl When cross-compiling, do not assume anything. + ac_cv_sigaction_need_reinstall="guessing yes" + ) + AC_LANG_RESTORE + ] +) +AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall", + [Define if your system requires sigactions to be reinstalled.]) + +dnl Check if Mach exceptions supported. +AC_CACHE_CHECK([whether your system supports Mach exceptions], + ac_cv_have_mach_exceptions, [ + AC_LANG_SAVE + AC_LANG_CPLUSPLUS + AC_TRY_RUN([ + #define HAVE_MACH_EXCEPTIONS 1 + #define CONFIGURE_TEST_SIGSEGV_RECOVERY + #include "vm_alloc.cpp" + #include "sigsegv.cpp" + ], + ac_cv_have_mach_exceptions=yes, + ac_cv_have_mach_exceptions=no, + dnl When cross-compiling, do not assume anything. + ac_cv_have_mach_exceptions=no + ) + AC_LANG_RESTORE + ] +) +if [[ "$ac_cv_have_mach_exceptions" = "yes" ]]; then + sigsegv_recovery=mach +fi +AC_TRANSLATE_DEFINE(HAVE_MACH_EXCEPTIONS, "$ac_cv_have_mach_exceptions", + [Define if your system supports Mach exceptions.]) + +dnl Otherwise, check if extended signals are supported. +if [[ -z "$sigsegv_recovery" ]]; then + AC_CACHE_CHECK([whether your system supports extended signal handlers], + ac_cv_have_extended_signals, [ + AC_LANG_SAVE + AC_LANG_CPLUSPLUS + AC_TRY_RUN([ + #define HAVE_SIGINFO_T 1 + #define CONFIGURE_TEST_SIGSEGV_RECOVERY + #include "vm_alloc.cpp" + #include "sigsegv.cpp" + ], + ac_cv_have_extended_signals=yes, + ac_cv_have_extended_signals=no, + dnl When cross-compiling, do not assume anything. + ac_cv_have_extended_signals=no + ) + AC_LANG_RESTORE + ] + ) + if [[ "$ac_cv_have_extended_signals" = "yes" ]]; then + sigsegv_recovery=siginfo + fi + AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals", + [Define if your system support extended signals.]) +fi + +dnl Otherwise, check for subterfuges. +if [[ -z "$sigsegv_recovery" ]]; then + AC_CACHE_CHECK([whether we then have a subterfuge for your system], + ac_cv_have_sigcontext_hack, [ + AC_LANG_SAVE + AC_LANG_CPLUSPLUS + AC_TRY_RUN([ + #define HAVE_SIGCONTEXT_SUBTERFUGE 1 + #define CONFIGURE_TEST_SIGSEGV_RECOVERY + #include "vm_alloc.cpp" + #include "sigsegv.cpp" + ], + ac_cv_have_sigcontext_hack=yes, + ac_cv_have_sigcontext_hack=no, + dnl When cross-compiling, do not assume anything. + ac_cv_have_sigcontext_hack=no + ) + AC_LANG_RESTORE + ]) + if [[ "$ac_cv_have_sigcontext_hack" = "yes" ]]; then + sigsegv_recovery=sigcontext + fi + AC_TRANSLATE_DEFINE(HAVE_SIGCONTEXT_SUBTERFUGE, "$ac_cv_have_sigcontext_hack", + [Define if we know a hack to replace siginfo_t->si_addr member.]) +fi + +dnl Check if we can ignore the fault (instruction skipping in SIGSEGV handler) +AC_CACHE_CHECK([whether we can skip instruction in SIGSEGV handler], + ac_cv_have_skip_instruction, [ + AC_LANG_SAVE + AC_LANG_CPLUSPLUS + AC_TRY_RUN([ + #define HAVE_SIGSEGV_SKIP_INSTRUCTION 1 + #define CONFIGURE_TEST_SIGSEGV_RECOVERY + #include "vm_alloc.cpp" + #include "sigsegv.cpp" + ], ac_cv_have_skip_instruction=yes, ac_cv_have_skip_instruction=no, + dnl When cross-compiling, do not assume anything. + ac_cv_have_skip_instruction=no + ) + AC_LANG_RESTORE + ] +) +AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_INSTRUCTION, "$ac_cv_have_skip_instruction", + [Define if we can ignore the fault (instruction skipping in SIGSEGV handler).]) + +dnl Can we do Video on SEGV Signals ? +CAN_VOSF=no +if [[ -n "$sigsegv_recovery" ]]; then + CAN_VOSF=yes +fi + +dnl Enable VOSF screen updates with this feature is requested and feasible +if [[ "x$WANT_VOSF" = "xyes" -a "x$CAN_VOSF" = "xyes" ]]; then + AC_DEFINE(ENABLE_VOSF, 1, [Define if using video enabled on SEGV signals.]) +else + WANT_VOSF=no +fi + +dnl Platform specific binary postprocessor +AC_PATH_PROG(BLESS, "true") +if [[ "x$ac_cv_pagezero_hack" = "xyes" ]]; then + BLESS=Darwin/lowmem + LDFLAGS="$LDFLAGS -pagezero_size 0x3000" +fi + +dnl Check for GCC 2.7 or higher. +HAVE_GCC27=no +AC_MSG_CHECKING(for GCC 2.7 or higher) +AC_EGREP_CPP(xyes, +[#if __GNUC__ - 1 > 1 || __GNUC_MINOR__ - 1 > 5 + xyes +#endif +], [AC_MSG_RESULT(yes); HAVE_GCC27=yes], AC_MSG_RESULT(no)) + +dnl Check for GCC 3.0 or higher. +HAVE_GCC30=no +AC_MSG_CHECKING(for GCC 3.0 or higher) +AC_EGREP_CPP(xyes, +[#if __GNUC__ >= 3 + xyes +#endif +], [AC_MSG_RESULT(yes); HAVE_GCC30=yes], AC_MSG_RESULT(no)) + +dnl Check for ICC. +AC_MSG_CHECKING(for ICC) +HAVE_ICC=no +if $CXX -V -v 2>&1 | grep -q "Intel(R) C++ Compiler"; then + HAVE_ICC=yes +fi +AC_MSG_RESULT($HAVE_ICC) + +# Test if the compiler can generate ELF objects +AC_CACHE_CHECK([whether the compiler can generate ELF objects], + ac_cv_elf_objects, [ + echo 'int i;' > conftest.$ac_ext + ac_cv_elf_objects=no + if AC_TRY_EVAL(ac_compile); then + case `/usr/bin/file conftest.$ac_objext` in + *"ELF"*) + ac_cv_elf_objects=yes + ;; + esac + fi + rm -rf conftest* +]) +ELF_OBJECTS=$ac_cv_elf_objects + +dnl CPU emulator sources +if [[ "x$EMULATED_PPC" = "xyes" ]]; then + CPUSRCS="\ + ../kpx_cpu/src/cpu/ppc/ppc-cpu.cpp \ + ../kpx_cpu/src/cpu/ppc/ppc-decode.cpp \ + ../kpx_cpu/src/cpu/ppc/ppc-execute.cpp \ + ../kpx_cpu/src/cpu/ppc/ppc-translate.cpp" + CPPFLAGS="$CPPFLAGS -I../kpx_cpu/include -I../kpx_cpu/src" + + dnl Enable JIT compiler, if possible + if [[ "x$WANT_JIT" = "xyes" ]]; then + AC_CACHE_CHECK([whether dyngen can be used], + ac_cv_use_dyngen, [ + case $host_cpu:$ELF_OBJECTS in + powerpc:yes) + ac_cv_use_dyngen=yes + ;; + x86_64:yes) + ac_cv_use_dyngen=yes + ;; + i?86:yes) + ac_cv_use_dyngen=yes + ;; + *:*) + ac_cv_use_dyngen=no + ;; + esac + dnl Check for a suitable synthetic opcodes compiler (icc is faking itself as gcc 3.2.2) + if [[ -z "$DYNGEN_CC" ]]; then + if [[ "x$HAVE_GCC27" = "xyes" -a "x$HAVE_ICC" = "xno" ]]; then + DYNGEN_CC=$CXX + else + for p in /usr/bin /usr/local/bin; do + gxx="$p/g++" + if [[ -x "$gxx" ]]; then + DYNGEN_CC="$gxx" + fi + done + fi + fi + if [[ -z "$DYNGEN_CC" ]] || ! { echo '#include ' | $DYNGEN_CC -xc++ -c -o /dev/null - >& /dev/null; }; then + ac_cv_use_dyngen=no + fi + ]) + if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then + case $host_cpu in + i?86) + DYNGEN_OP_FLAGS="-fomit-frame-pointer -mpreferred-stack-boundary=2" + if [[ "x$HAVE_GCC30" = "xyes" ]]; then + DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -falign-functions=0" + else + DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -malign-functions=0" + fi + saved_CPPFLAGS=$CPPFLAGS + CPPFLAGS="$CPPFLAGS -mmmx" + AC_CHECK_HEADERS(mmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -mmmx"]) + CPPFLAGS="$CPPFLAGS -msse" + AC_CHECK_HEADERS(xmmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse"]) + CPPFLAGS="$CPPFLAGS -msse2" + AC_CHECK_HEADERS(emmintrin.h, [DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -msse2"]) + CPPFLAGS=$saved_CPPFLAGS + ;; + x86_64) + AC_CHECK_HEADERS(mmintrin.h xmmintrin.h emmintrin.h) + ;; + esac + DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -finline-limit=10000" + if [[ "x$HAVE_GCC30" = "xyes" ]]; then + DYNGEN_OP_FLAGS="$DYNGEN_OP_FLAGS -fno-reorder-blocks -fno-optimize-sibling-calls" + fi + else + WANT_JIT=no + fi + AC_TRANSLATE_DEFINE(ENABLE_DYNGEN, $ac_cv_use_dyngen, [Define to enable dyngen engine]) + if [[ "x$WANT_JIT" = "xyes" ]]; then + DYNGENSRCS="\ + ../kpx_cpu/src/cpu/jit/dyngen.c \ + ../kpx_cpu/src/cpu/jit/cxxdemangle.cpp" + CPUSRCS="\ + ../kpx_cpu/src/cpu/jit/jit-cache.cpp \ + ../kpx_cpu/src/cpu/jit/basic-dyngen.cpp \ + ../kpx_cpu/src/cpu/ppc/ppc-dyngen.cpp $CPUSRCS" + fi + fi + CPUSRCS="$CPUSRCS ../kpx_cpu/sheepshaver_glue.cpp" else - SYSSRCS="../emul_ppc/emul_ppc.cpp" + WANT_JIT=no +fi +if [[ "x$ac_cv_use_dyngen" = "xyes" ]]; then + AC_CACHE_CHECK([whether static data regions are executable], + ac_cv_have_static_data_exec, [ + AC_TRY_RUN([int main(void) { +#if defined(__powerpc__) + static unsigned int p[8] = {0x4e800020,}; + asm volatile("dcbst 0,%0" : : "r" (p) : "memory"); + asm volatile("sync" : : : "memory"); + asm volatile("icbi 0,%0" : : "r" (p) : "memory"); + asm volatile("sync" : : : "memory"); + asm volatile("isync" : : : "memory"); + ((void (*)(void))p)(); + return 0; +#endif + return 1; + }], ac_cv_have_static_data_exec=yes, ac_cv_have_static_data_exec=no, + dnl When cross-compiling, do not assume anything. + ac_cv_have_static_data_exec=no + ) + ]) +fi +AC_TRANSLATE_DEFINE(HAVE_STATIC_DATA_EXEC, "$ac_cv_have_static_data_exec", + [Define if your system marks static data pages as executable.]) + +if [[ "x$WANT_JIT" = "xyes" ]]; then + CPPFLAGS="$CPPFLAGS -DUSE_JIT" fi -SYSSRCS="$SYSSRCS $SEMSRCS $UISRCS $MONSRCS" dnl Generate Makefile. +AC_SUBST(DYNGENSRCS) +AC_SUBST(DYNGEN_CC) +AC_SUBST(DYNGEN_OP_FLAGS) AC_SUBST(SYSSRCS) +AC_SUBST(CPUSRCS) +AC_SUBST(BLESS) +AC_SUBST(KEYCODES) AC_OUTPUT(Makefile) dnl Print summary. echo echo SheepShaver configuration summary: echo +echo SDL support ...................... : $SDL_SUPPORT echo XFree86 DGA support .............. : $WANT_XF86_DGA echo XFree86 VidMode support .......... : $WANT_XF86_VIDMODE +echo Using PowerPC emulator ........... : $EMULATED_PPC +echo Enable JIT compiler .............. : $WANT_JIT +echo Enable video on SEGV signals ..... : $WANT_VOSF echo ESD sound support ................ : $WANT_ESD echo GTK user interface ............... : $WANT_GTK echo mon debugger support ............. : $WANT_MON +echo Bad memory access recovery type .. : $sigsegv_recovery echo echo "Configuration done. Now type \"make\"."