;;
esac])
+dnl Check if as supports RTM instructions.
+AC_DEFUN([LIBITM_CHECK_AS_RTM], [
+case "${target_cpu}" in
+i[[34567]]86 | x86_64)
+ AC_CACHE_CHECK([if the assembler supports RTM], libitm_cv_as_rtm, [
+ AC_TRY_COMPILE([], [asm("1: xbegin 1b; xend");],
+ [libitm_cv_as_rtm=yes], [libitm_cv_as_rtm=no])
+ ])
+ if test x$libitm_cv_as_rtm = xyes; then
+ AC_DEFINE(HAVE_AS_RTM, 1, [Define to 1 if the assembler supports RTM.])
+ fi
+ ;;
+esac])
+
+dnl Check if as supports HTM instructions.
+AC_DEFUN([LIBITM_CHECK_AS_HTM], [
+case "${target_cpu}" in
+powerpc*)
+ AC_CACHE_CHECK([if the assembler supports HTM], libitm_cv_as_htm, [
+ AC_TRY_COMPILE([], [asm("tbegin. 0; tend. 0");],
+ [libitm_cv_as_htm=yes], [libitm_cv_as_htm=no])
+ ])
+ if test x$libitm_cv_as_htm = xyes; then
+ AC_DEFINE(HAVE_AS_HTM, 1, [Define to 1 if the assembler supports HTM.])
+ fi
+ ;;
+s390*)
+ AC_CACHE_CHECK([if the assembler supports HTM], libitm_cv_as_htm, [
+ save_CFLAGS="$CFLAGS"
+ CFLAGS="$CFLAGS -march=zEC12"
+ AC_TRY_COMPILE([], [asm("tbegin 0,0; tend");],
+ [libitm_cv_as_htm=yes], [libitm_cv_as_htm=no])
+ CFLAGS="$save_CFLAGS"])
+ if test x$libitm_cv_as_htm = xyes; then
+ AC_DEFINE(HAVE_AS_HTM, 1, [Define to 1 if the assembler supports HTM.])
+ fi
+ ;;
+esac])
+
sinclude(../libtool.m4)
dnl The lines below arrange for aclocal not to bring an installed
dnl libtool.m4 into aclocal.m4, while still arranging for automake to
dnl
dnl Check if the linker used supports linker maps to clear hardware
-dnl capabilities. This is only supported by Sun ld at the moment.
+dnl capabilities. This is only supported on Solaris at the moment.
dnl
dnl Defines:
-dnl HWCAP_LDFLAGS='-Wl,-M,clearcap.map' if possible
+dnl HWCAP_LDFLAGS=-mclear-hwcap if possible
dnl LD (as a side effect of testing)
dnl
AC_DEFUN([LIBITM_CHECK_LINKER_HWCAP], [
AC_REQUIRE([AC_PROG_LD])
ac_save_LDFLAGS="$LDFLAGS"
- LDFLAGS="$LFLAGS -Wl,-M,$srcdir/clearcap.map"
+ LDFLAGS="$LFLAGS -mclear-hwcap"
- AC_MSG_CHECKING([for ld that supports -Wl,-M,mapfile])
+ AC_MSG_CHECKING([for -mclear-hwcap])
AC_TRY_LINK([], [return 0;], [ac_hwcap_ldflags=yes],[ac_hwcap_ldflags=no])
if test "$ac_hwcap_ldflags" = "yes"; then
- HWCAP_LDFLAGS="-Wl,-M,$srcdir/clearcap.map $HWCAP_LDFLAGS"
+ HWCAP_LDFLAGS="-mclear-hwcap $HWCAP_LDFLAGS"
fi
AC_MSG_RESULT($ac_hwcap_ldflags)