Add sincos() and sincosf() implementation.
This is a GLibc-compatibility patch required to simplify our
upcoming toolchain work/porting.
Change-Id: I615a20a449763f86b6e2b0e4f5ab43fb029ceb6d
diff --git a/libm/Android.mk b/libm/Android.mk
index fa73aff..28e8f33 100644
--- a/libm/Android.mk
+++ b/libm/Android.mk
@@ -3,6 +3,7 @@
libm_common_src_files:= \
isinf.c \
fpclassify.c \
+ sincos.c \
bsdsrc/b_exp.c \
bsdsrc/b_log.c \
bsdsrc/b_tgamma.c \
diff --git a/libm/include/math.h b/libm/include/math.h
index ef6a9e6..6c0d4eb 100644
--- a/libm/include/math.h
+++ b/libm/include/math.h
@@ -480,6 +480,12 @@
#endif
long double truncl(long double);
+/* BIONIC: GLibc compatibility - required by the ARM toolchain */
+#ifdef _GNU_SOURCE
+void sincos(double x, double *sin, double *cos);
+void sincosf(float x, float *sin, float *cos);
+#endif
+
/* #endif */ /* __ISO_C_VISIBLE >= 1999 */
__END_DECLS
diff --git a/libm/sincos.c b/libm/sincos.c
new file mode 100644
index 0000000..ddbc420
--- /dev/null
+++ b/libm/sincos.c
@@ -0,0 +1,40 @@
+/*-
+ * Copyright (c) 2010 The Android Open Source Project
+ * 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.
+ *
+ */
+#define _GNU_SOURCE 1
+#include <math.h>
+
+void sincos(double x, double *psin, double *pcos)
+{
+ *psin = sin(x);
+ *pcos = cos(x);
+}
+
+void sincosf(float x, float *psin, float *pcos)
+{
+ *psin = sinf(x);
+ *pcos = cosf(x);
+}