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commit 2ee1bc57ab50737ee2ab88c4d796b90e08b4bf93
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Author: Stefan Liebler <stli@linux.ibm.com>
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Date: Tue Dec 18 13:57:08 2018 +0100
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S390: Add configure check to detect z13 as mininum architecture level set.
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Add a configure check for z13 in the same way as done for z196.
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ChangeLog:
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* config.h.in (HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT): New undefine.
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* sysdeps/s390/configure.ac: Add check for z13 support.
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* sysdeps/s390/configure: Regenerated.
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diff --git a/config.h.in b/config.h.in
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index beecc39d5b8c3f4a..422a6036ab16e3b6 100644
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--- a/config.h.in
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+++ b/config.h.in
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@@ -68,6 +68,9 @@
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/* Define if assembler supports z196 zarch instructions as default on S390. */
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#undef HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT
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+/* Define if assembler supports z13 zarch instructions as default on S390. */
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+#undef HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT
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+
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/* Define if assembler supports vector instructions on S390. */
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#undef HAVE_S390_VX_ASM_SUPPORT
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diff --git a/sysdeps/s390/configure b/sysdeps/s390/configure
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index f30f8644361f474a..4a44775e3083d8c3 100644
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--- a/sysdeps/s390/configure
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+++ b/sysdeps/s390/configure
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@@ -187,5 +187,43 @@ then
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fi
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+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for S390 z13 zarch instruction support as default" >&5
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+$as_echo_n "checking for S390 z13 zarch instruction support as default... " >&6; }
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+if ${libc_cv_asm_s390_min_z13_zarch+:} false; then :
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+ $as_echo_n "(cached) " >&6
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+else
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+ cat > conftest.c <<\EOF
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+int testinsn (void)
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+{
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+ int i;
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+ __asm__ ("vl %%v16,0(%%r15)\n\t"
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+ "vlgvf %0,%%v16,0"
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+ : "=d" (i) : : "memory", "v16");
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+ return i;
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+}
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+EOF
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+if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
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+ -o conftest.o &> /dev/null'
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+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
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+ (eval $ac_try) 2>&5
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+ ac_status=$?
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+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
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+ test $ac_status = 0; }; } ;
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+then
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+ libc_cv_asm_s390_min_z13_zarch=yes
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+else
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+ libc_cv_asm_s390_min_z13_zarch=no
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+fi
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+rm -f conftest*
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+fi
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+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_asm_s390_min_z13_zarch" >&5
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+$as_echo "$libc_cv_asm_s390_min_z13_zarch" >&6; }
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+
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+if test "$libc_cv_asm_s390_min_z13_zarch" = yes ;
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+then
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+ $as_echo "#define HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT 1" >>confdefs.h
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+
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+fi
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+
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test -n "$critic_missing" && as_fn_error $? "
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*** $critic_missing" "$LINENO" 5
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diff --git a/sysdeps/s390/configure.ac b/sysdeps/s390/configure.ac
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index 981f7a79dd7066fc..4dfb5574b49d5949 100644
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--- a/sysdeps/s390/configure.ac
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+++ b/sysdeps/s390/configure.ac
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@@ -135,5 +135,33 @@ then
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AC_DEFINE(HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT)
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fi
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+AC_CACHE_CHECK(for S390 z13 zarch instruction support as default,
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+ libc_cv_asm_s390_min_z13_zarch, [dnl
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+cat > conftest.c <<\EOF
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+int testinsn (void)
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+{
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+ int i;
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+ __asm__ ("vl %%v16,0(%%r15)\n\t"
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+ "vlgvf %0,%%v16,0"
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+ : "=d" (i) : : "memory", "v16");
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+ return i;
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+}
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+EOF
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+dnl
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+dnl test, if assembler supports S390 z13 zarch instructions as default
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+if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS --shared conftest.c
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+ -o conftest.o &> /dev/null]) ;
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+then
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+ libc_cv_asm_s390_min_z13_zarch=yes
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+else
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+ libc_cv_asm_s390_min_z13_zarch=no
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+fi
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+rm -f conftest* ])
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+
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+if test "$libc_cv_asm_s390_min_z13_zarch" = yes ;
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+then
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+ AC_DEFINE(HAVE_S390_MIN_Z13_ZARCH_ASM_SUPPORT)
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+fi
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+
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test -n "$critic_missing" && AC_MSG_ERROR([
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*** $critic_missing])
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