mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-30 21:51:09 +00:00
123 lines
4.4 KiB
Text
123 lines
4.4 KiB
Text
dnl AG_GST_ARCH
|
|
dnl sets up defines and automake conditionals for host architecture
|
|
dnl checks endianness
|
|
dnl defines HOST_CPU
|
|
|
|
AC_DEFUN([AG_GST_ARCH],
|
|
[
|
|
AC_REQUIRE([AC_CANONICAL_HOST]) dnl we use host_ variables
|
|
|
|
dnl Determine CPU
|
|
case "x${host_cpu}" in
|
|
xi?86 | xk? | xi?86_64)
|
|
HAVE_CPU_I386=yes
|
|
AC_DEFINE(HAVE_CPU_I386, 1, [Define if the host CPU is an x86])
|
|
|
|
dnl FIXME could use some better detection
|
|
dnl (ie CPUID)
|
|
case "x${host_cpu}" in
|
|
xi386 | xi486) ;;
|
|
*)
|
|
AC_DEFINE(HAVE_RDTSC, 1, [Define if RDTSC is available]) ;;
|
|
esac ;;
|
|
xpowerpc)
|
|
HAVE_CPU_PPC=yes
|
|
AC_DEFINE(HAVE_CPU_PPC, 1, [Define if the host CPU is a PowerPC]) ;;
|
|
xpowerpc64)
|
|
HAVE_CPU_PPC64=yes
|
|
AC_DEFINE(HAVE_CPU_PPC64, 1, [Define if the host CPU is a 64 bit PowerPC]) ;;
|
|
xalpha*)
|
|
HAVE_CPU_ALPHA=yes
|
|
AC_DEFINE(HAVE_CPU_ALPHA, 1, [Define if the host CPU is an Alpha]) ;;
|
|
xarm*)
|
|
HAVE_CPU_ARM=yes
|
|
AC_DEFINE(HAVE_CPU_ARM, 1, [Define if the host CPU is an ARM]) ;;
|
|
xsparc*)
|
|
HAVE_CPU_SPARC=yes
|
|
AC_DEFINE(HAVE_CPU_SPARC, 1, [Define if the host CPU is a SPARC]) ;;
|
|
xmips*)
|
|
HAVE_CPU_MIPS=yes
|
|
AC_DEFINE(HAVE_CPU_MIPS, 1, [Define if the host CPU is a MIPS]) ;;
|
|
xhppa*)
|
|
HAVE_CPU_HPPA=yes
|
|
AC_DEFINE(HAVE_CPU_HPPA, 1, [Define if the host CPU is a HPPA]) ;;
|
|
xs390*)
|
|
HAVE_CPU_S390=yes
|
|
AC_DEFINE(HAVE_CPU_S390, 1, [Define if the host CPU is a S390]) ;;
|
|
xia64*)
|
|
HAVE_CPU_IA64=yes
|
|
AC_DEFINE(HAVE_CPU_IA64, 1, [Define if the host CPU is a IA64]) ;;
|
|
xm68k*)
|
|
HAVE_CPU_M68K=yes
|
|
AC_DEFINE(HAVE_CPU_M68K, 1, [Define if the host CPU is a M68K]) ;;
|
|
xx86_64)
|
|
HAVE_CPU_X86_64=yes
|
|
AC_DEFINE(HAVE_CPU_X86_64, 1, [Define if the host CPU is a x86_64]) ;;
|
|
xcris)
|
|
HAVE_CPU_CRIS=yes
|
|
AC_DEFINE(HAVE_CPU_CRIS, 1, [Define if the host CPU is a CRIS]) ;;
|
|
xcrisv32)
|
|
HAVE_CPU_CRISV32=yes
|
|
AC_DEFINE(HAVE_CPU_CRISV32, 1, [Define if the host CPU is a CRISv32]) ;;
|
|
esac
|
|
|
|
dnl Determine endianness
|
|
AC_C_BIGENDIAN
|
|
|
|
AM_CONDITIONAL(HAVE_CPU_I386, test "x$HAVE_CPU_I386" = "xyes")
|
|
AM_CONDITIONAL(HAVE_CPU_PPC, test "x$HAVE_CPU_PPC" = "xyes")
|
|
AM_CONDITIONAL(HAVE_CPU_PPC64, test "x$HAVE_CPU_PPC64" = "xyes")
|
|
AM_CONDITIONAL(HAVE_CPU_ALPHA, test "x$HAVE_CPU_ALPHA" = "xyes")
|
|
AM_CONDITIONAL(HAVE_CPU_ARM, test "x$HAVE_CPU_ARM" = "xyes")
|
|
AM_CONDITIONAL(HAVE_CPU_SPARC, test "x$HAVE_CPU_SPARC" = "xyes")
|
|
AM_CONDITIONAL(HAVE_CPU_HPPA, test "x$HAVE_CPU_HPPA" = "xyes")
|
|
AM_CONDITIONAL(HAVE_CPU_MIPS, test "x$HAVE_CPU_MIPS" = "xyes")
|
|
AM_CONDITIONAL(HAVE_CPU_S390, test "x$HAVE_CPU_S390" = "xyes")
|
|
AM_CONDITIONAL(HAVE_CPU_IA64, test "x$HAVE_CPU_IA64" = "xyes")
|
|
AM_CONDITIONAL(HAVE_CPU_M68K, test "x$HAVE_CPU_M68K" = "xyes")
|
|
AM_CONDITIONAL(HAVE_CPU_X86_64, test "x$HAVE_CPU_X86_64" = "xyes")
|
|
AM_CONDITIONAL(HAVE_CPU_CRIS, test "x$HAVE_CPU_CRIS" = "xyes")
|
|
AM_CONDITIONAL(HAVE_CPU_CRISV32, test "x$HAVE_CPU_CRISV32" = "xyes")
|
|
|
|
AC_DEFINE_UNQUOTED(HOST_CPU, "$host_cpu", [the host CPU])
|
|
])
|
|
|
|
dnl check if unaligned memory access works correctly
|
|
AC_DEFUN([AG_GST_UNALIGNED_ACCESS], [
|
|
AC_MSG_CHECKING([if unaligned memory access works correctly])
|
|
if test x"$as_cv_unaligned_access" = x ; then
|
|
case $host in
|
|
alpha*|arm*|hp*|mips*|sh*|sparc*|ia64*)
|
|
_AS_ECHO_N([(blacklisted) ])
|
|
as_cv_unaligned_access=no
|
|
;;
|
|
i?86*|powerpc*|m68k*|cris*)
|
|
_AS_ECHO_N([(whitelisted) ])
|
|
as_cv_unaligned_access=yes
|
|
;;
|
|
esac
|
|
else
|
|
_AS_ECHO_N([(cached) ])
|
|
fi
|
|
if test x"$as_cv_unaligned_access" = x ; then
|
|
AC_TRY_RUN([
|
|
int main(int argc, char **argv)
|
|
{
|
|
char array[] = "ABCDEFGH";
|
|
unsigned int iarray[2];
|
|
memcpy(iarray,array,8);
|
|
#define GET(x) (*(unsigned int *)((char *)iarray + (x)))
|
|
if(GET(0) != 0x41424344 && GET(0) != 0x44434241) return 1;
|
|
if(GET(1) != 0x42434445 && GET(1) != 0x45444342) return 1;
|
|
if(GET(2) != 0x43444546 && GET(2) != 0x46454443) return 1;
|
|
if(GET(3) != 0x44454647 && GET(3) != 0x47464544) return 1;
|
|
return 0;
|
|
}
|
|
], as_cv_unaligned_access="yes", as_cv_unaligned_access="no")
|
|
fi
|
|
AC_MSG_RESULT($as_cv_unaligned_access)
|
|
if test "$as_cv_unaligned_access" = "yes"; then
|
|
AC_DEFINE_UNQUOTED(HAVE_UNALIGNED_ACCESS, 1,
|
|
[defined if unaligned memory access works correctly])
|
|
fi
|
|
])
|