This is the mail archive of the
libc-alpha@sourceware.org
mailing list for the glibc project.
[PATCH v2 5/6] powerpc64le: Require at least POWER8 for powerpc64le
- From: "Gabriel F. T. Gomes" <gftg at linux dot vnet dot ibm dot com>
- To: libc-alpha at sourceware dot org
- Date: Wed, 21 Jun 2017 14:45:24 -0300
- Subject: [PATCH v2 5/6] powerpc64le: Require at least POWER8 for powerpc64le
- Authentication-results: sourceware.org; auth=none
- References: <1498067125-30472-1-git-send-email-gftg@linux.vnet.ibm.com>
No changes since v1.
-- 8< --
Support for powerpc64le requires POWER8 or newer processors. Builds for
older processors are not tested. Require at least POWER8 to avoid
unintentional builds.
2017-06-12 Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com>
* sysdeps/powerpc/powerpc64le/configure.ac: Check for POWER8.
* sysdeps/powerpc/powerpc64le/configure: Update.
---
sysdeps/powerpc/powerpc64le/configure | 30 ++++++++++++++++++++++++++++++
sysdeps/powerpc/powerpc64le/configure.ac | 16 ++++++++++++++++
2 files changed, 46 insertions(+)
diff --git a/sysdeps/powerpc/powerpc64le/configure b/sysdeps/powerpc/powerpc64le/configure
index f5f1069..bf17d15 100644
--- a/sysdeps/powerpc/powerpc64le/configure
+++ b/sysdeps/powerpc/powerpc64le/configure
@@ -68,4 +68,34 @@ if test "$libc_cv_compiler_powerpc64le_compiler_ok" != "yes"; then :
critic_missing="$critic_missing 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
diff --git a/sysdeps/powerpc/powerpc64le/configure.ac b/sysdeps/powerpc/powerpc64le/configure.ac
index 9d8c54c..53d8e12 100644
--- a/sysdeps/powerpc/powerpc64le/configure.ac
+++ b/sysdeps/powerpc/powerpc64le/configure.ac
@@ -14,4 +14,20 @@ AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
AS_IF([test "$libc_cv_compiler_powerpc64le_compiler_ok" != "yes"],
[critic_missing="$critic_missing 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])
--
2.4.11