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Mach bad access recovery support from Michael Z. Sliczniak

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gbeauche 2003-10-12 15:56:00 +00:00
parent 192943f46c
commit b2fee2f576
1 changed files with 51 additions and 12 deletions
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63
BasiliskII/src/Unix/configure.ac
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@ -10,6 +10,10 @@ dnl Aliases for PACKAGE and VERSION macros.
AC_DEFINE(PACKAGE, PACKAGE_NAME, [Alias to PACKAGE for i18n.])
AC_DEFINE(VERSION, PACKAGE_VERSION, [Alias to VERSION for i18n.])
dnl Some systems do not put corefiles in the currect directory, avoid saving
dnl cores for the configure tests since some are intended to dump core.
ulimit -c 0
dnl Video options.
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])
@ -223,7 +227,7 @@ AC_SYS_LARGEFILE
dnl Checks for header files.
AC_HEADER_STDC
AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h sys/mman.h)
AC_CHECK_HEADERS(unistd.h fcntl.h sys/time.h sys/mman.h mach/mach.h)
AC_CHECK_HEADERS(readline.h history.h readline/readline.h readline/history.h)
dnl Checks for typedefs, structures, and compiler characteristics.
@ -638,28 +642,58 @@ AC_CACHE_CHECK([whether sigaction handlers need to be reinstalled],
AC_TRANSLATE_DEFINE(SIGACTION_NEED_REINSTALL, "$ac_cv_sigaction_need_reinstall",
[Define if your system requires sigactions to be reinstalled.])
dnl Check if extended signals are supported.
AC_CACHE_CHECK([whether your system supports extended signal handlers],
ac_cv_have_extended_signals, [
dnl Check if Mach exceptions supported.
AC_CACHE_CHECK([whether your system supports Mach exceptions],
ac_cv_have_mach_exceptions, [
AC_LANG_SAVE
AC_LANG_CPLUSPLUS
AC_TRY_RUN([
#define HAVE_SIGINFO_T 1
#define HAVE_MACH_EXCEPTIONS 1
#define CONFIGURE_TEST_SIGSEGV_RECOVERY
#include "vm_alloc.cpp"
#include "sigsegv.cpp"
], ac_cv_have_extended_signals=yes, ac_cv_have_extended_signals=no,
], [
sigsegv_recovery=mach
ac_cv_have_mach_exceptions=yes
],
ac_cv_have_mach_exceptions=no,
dnl When cross-compiling, do not assume anything.
ac_cv_have_extended_signals=no
ac_cv_have_mach_exceptions=no
)
AC_LANG_RESTORE
]
)
AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals",
[Define if your system support extended signals.])
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"
], [
sigsegv_recovery=siginfo
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
]
)
AC_TRANSLATE_DEFINE(HAVE_SIGINFO_T, "$ac_cv_have_extended_signals",
[Define if your system support extended signals.])
fi
dnl Otherwise, check for subterfuges.
if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
if [[ -z "$sigsegv_recovery" ]]; then
AC_CACHE_CHECK([whether we then have a subterfuge for your system],
ac_cv_have_sigcontext_hack, [
AC_LANG_SAVE
@ -669,7 +703,11 @@ if [[ "x$ac_cv_have_extended_signals" = "xno" ]]; then
#define CONFIGURE_TEST_SIGSEGV_RECOVERY
#include "vm_alloc.cpp"
#include "sigsegv.cpp"
], ac_cv_have_sigcontext_hack=yes, ac_cv_have_sigcontext_hack=no,
], [
sigsegv_recovery=sigcontext
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
)
@ -701,7 +739,7 @@ AC_TRANSLATE_DEFINE(HAVE_SIGSEGV_SKIP_INSTRUCTION, "$ac_cv_have_skip_instruction
dnl Can we do Video on SEGV Signals ?
CAN_VOSF=no
if [[ "$ac_cv_have_extended_signals" = "yes" -o "$ac_cv_have_sigcontext_hack" = "yes" ]]; then
if [[ -n "$sigsegv_recovery" ]]; then
CAN_VOSF=yes
fi
@ -1134,5 +1172,6 @@ echo JIT debug mode ......................... : $WANT_JIT_DEBUG
echo Floating-Point emulation core .......... : $FPE_CORE
echo Assembly optimizations ................. : $ASM_OPTIMIZATIONS
echo Addressing mode ........................ : $ADDRESSING_MODE
echo Bad memory access recovery type ........ : $sigsegv_recovery
echo
echo "Configuration done. Now type \"make\" (or \"gmake\")."