1 files changed, 101 insertions, 0 deletions
diff --git a/lib/libc/arm/aeabi/aeabi_double.c b/lib/libc/arm/aeabi/aeabi_double.c
new file mode 100644
index 0000000..a69e8a7
--- /dev/null
+++ b/lib/libc/arm/aeabi/aeabi_double.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2012 Andrew Turner
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include "softfloat-for-gcc.h"
+#include "milieu.h"
+#include "softfloat.h"
+
+#include "aeabi_vfp.h"
+
+extern int _libc_arm_fpu_present;
+
+flag __unorddf2(float64, float64);
+
+/* These are written in asm and are only called from this file */
+int __aeabi_dcmpeq_vfp(float64, float64);
+int __aeabi_dcmplt_vfp(float64, float64);
+int __aeabi_dcmple_vfp(float64, float64);
+int __aeabi_dcmpgt_vfp(float64, float64);
+int __aeabi_dcmpge_vfp(float64, float64);
+int __aeabi_dcmpun_vfp(float64, float64);
+int __aeabi_d2iz_vfp(float64);
+float32 __aeabi_d2f_vfp(float64);
+float64 __aeabi_i2d_vfp(int);
+float64 __aeabi_dadd_vfp(float64, float64);
+float64 __aeabi_ddiv_vfp(float64, float64);
+float64 __aeabi_dmul_vfp(float64, float64);
+float64 __aeabi_dsub_vfp(float64, float64);
+
+/*
+ * Depending on the target these will:
+ *  On armv6 with a vfp call the above function, or
+ *  Call the softfloat function in the 3rd argument.
+ */
+int AEABI_FUNC2(dcmpeq, float64, float64_eq)
+int AEABI_FUNC2(dcmplt, float64, float64_lt)
+int AEABI_FUNC2(dcmple, float64, float64_le)
+int AEABI_FUNC2_REV(dcmpge, float64, float64_le)
+int AEABI_FUNC2_REV(dcmpgt, float64, float64_lt)
+int AEABI_FUNC2(dcmpun, float64, __unorddf2)
+
+int AEABI_FUNC(d2iz, float64, float64_to_int32_round_to_zero)
+float32 AEABI_FUNC(d2f, float64, float64_to_float32)
+float64 AEABI_FUNC(i2d, int, int32_to_float64)
+
+float64 AEABI_FUNC2(dadd, float64, float64_add)
+float64 AEABI_FUNC2(ddiv, float64, float64_div)
+float64 AEABI_FUNC2(dmul, float64, float64_mul)
+float64 AEABI_FUNC2(dsub, float64, float64_sub)
+
+int
+__aeabi_cdcmpeq_helper(float64 a, float64 b)
+{
+	int quiet = 0;
+
+	/* Check if a is a NaN */
+	if ((a << 1) > 0xffe0000000000000ull) {
+		/* If it's a signalling NaN we will always signal */
+		if ((a & 0x0008000000000000ull) == 0)
+			return (0);
+
+		quiet = 1;
+	}
+
+	/* Check if b is a NaN */
+	if ((b << 1) > 0xffe0000000000000ull) {
+		/* If it's a signalling NaN we will always signal */
+		if ((b & 0x0008000000000000ull) == 0)
+			return (0);
+
+		quiet = 1;
+	}
+
+	return (quiet);
+}