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powerpc64le: Require at least POWER8 for powerpc64le

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Support for powerpc64le requires POWER8 or newer processors.  Builds for
older processors are not tested.  Require at least POWER8 to avoid
unintentional builds.

	* sysdeps/powerpc/powerpc64le/configure.ac: Check for POWER8.
	* sysdeps/powerpc/powerpc64le/configure: Update.
This commit is contained in:
Gabriel F. T. Gomes 2017-06-05 16:18:54 -03:00
parent 4efe3ce400
commit a27d2c1935
3 changed files with 51 additions and 0 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2017-06-26 Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
* sysdeps/powerpc/powerpc64le/configure.ac: Check for POWER8.
* sysdeps/powerpc/powerpc64le/configure: Update.
2017-06-26 Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>

30
sysdeps/powerpc/powerpc64le/configure vendored
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@ -42,4 +42,34 @@ if test "$libc_cv_compiler_powerpc64le_binary128_ok" != "yes"; then :
critic_missing="$critic_missing binary128 floating point type (GCC >= 6.2) is required on powerpc64le."
fi
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $libc_cv_cc_submachine"
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the target machine is at least POWER8" >&5
$as_echo_n "checking if the target machine is at least POWER8... " >&6; }
if ${libc_cv_target_power8_ok+:} false; then :
$as_echo_n "(cached) " >&6
else
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
#ifndef _ARCH_PWR8
#error invalid target architecture
#endif
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
libc_cv_target_power8_ok=yes
else
libc_cv_target_power8_ok=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_target_power8_ok" >&5
$as_echo "$libc_cv_target_power8_ok" >&6; }
if test "$libc_cv_target_power8_ok" != "yes"; then :
critic_missing="$critic_missing POWER8 or newer is required on powerpc64le."
fi
CFLAGS="$OLD_CFLAGS"
test -n "$critic_missing" && as_fn_error $? "*** $critic_missing" "$LINENO" 5

16
sysdeps/powerpc/powerpc64le/configure.ac
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@ -29,4 +29,20 @@ CFLAGS="$save_CFLAGS"])
AS_IF([test "$libc_cv_compiler_powerpc64le_binary128_ok" != "yes"],
[critic_missing="$critic_missing binary128 floating point type (GCC >= 6.2) is required on powerpc64le."])
dnl Require at least POWER8 on powerpc64le
OLD_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS $libc_cv_cc_submachine"
AC_CACHE_CHECK([if the target machine is at least POWER8],
libc_cv_target_power8_ok, [
AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
#ifndef _ARCH_PWR8
#error invalid target architecture
#endif
]])],
[libc_cv_target_power8_ok=yes],
[libc_cv_target_power8_ok=no])])
AS_IF([test "$libc_cv_target_power8_ok" != "yes"],
[critic_missing="$critic_missing POWER8 or newer is required on powerpc64le."])
CFLAGS="$OLD_CFLAGS"
test -n "$critic_missing" && AC_MSG_ERROR([*** $critic_missing])