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-rw-r--r--sysdeps/loongarch/preconfigure53
1 files changed, 53 insertions, 0 deletions
diff --git a/sysdeps/loongarch/preconfigure b/sysdeps/loongarch/preconfigure
new file mode 100644
index 0000000000..118963cda6
--- /dev/null
+++ b/sysdeps/loongarch/preconfigure
@@ -0,0 +1,53 @@
+# This file is generated from configure.ac by Autoconf.  DO NOT EDIT!
+# Local preconfigure fragment for sysdeps/loongarch
+
+case "$machine" in
+loongarch*)
+
+    abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | sed -n 's/^#define __loongarch_\(lp64\|ilp32\).*/\1/p'`
+    float_abi=`$CC $CFLAGS $CPPFLAGS -E -dM -xc /dev/null | sed -n 's/^#define __loongarch_\(soft\|single\|double\)_float.*/\1/p'`
+
+    with_fp_cond="!defined __loongarch_soft_float"
+
+    case "$float_abi" in
+    soft)
+	abi_flen=0
+	as_fn_error 1 "loongarch does not yet support soft floating-point  ABI!!" "$LINENO" 5
+	;;
+    single)
+	as_fn_error 1 "glibc does not yet support the single floating-point ABI!!" "$LINENO" 5
+	;;
+    double)
+	abi_flen=64
+	;;
+    *)
+	as_fn_error 1 "Unable to determine floating-point ABI!!" "$LINENO" 5
+	;;
+    esac
+
+    case "$abi" in
+    ilp32)
+	as_fn_error 1 "loongarch does not yet support ilp32 ABI!!" "$LINENO" 5
+	;;
+    lp64)
+	grlen=64
+	machine=loongarch/lp64
+	;;
+    *)
+	as_fn_error 1 "Unable to determine GRLEN!!" "$LINENO" 5
+	;;
+    esac
+
+    cat >>confdefs.h <<_ACEOF
+#define LOONGARCH_ABI_GRLEN $grlen
+_ACEOF
+
+    cat >>confdefs.h <<_ACEOF
+#define LOONGARCH_ABI_FRLEN $abi_flen
+_ACEOF
+
+
+    base_machine=loongarch
+    ;;
+esac
+