diff --git a/libs/libm/newlib/CMakeLists.txt b/libs/libm/newlib/CMakeLists.txt
index a2c68937157..7fdba758948 100644
--- a/libs/libm/newlib/CMakeLists.txt
+++ b/libs/libm/newlib/CMakeLists.txt
@@ -93,6 +93,12 @@ if(CONFIG_LIBM_NEWLIB)
 
   set(CSRCS ${COMMON_CSRCS} ${COMPLEX_CSRCS} ${ARCH_CSRCS})
 
+  # aggresive optimisation can replace occurrences of sinl() and cosl() with
+  # sincosl(), but sincosl() is missing in newlib which causes error. So let's
+  # use custom implementation here.
+
+  list(APPEND CSRCS ${CMAKE_CURRENT_LIST_DIR}/sincosl.c)
+
   if(CONFIG_LIBM_NEWLIB_HW_FP)
     file(GLOB_RECURSE MATHFP_CSRCS ${NEWLIB_DIR}/newlib/libm/mathfp/*.c)
     list(APPEND CSRCS ${MATHFP_CSRCS})
diff --git a/libs/libm/newlib/Make.defs b/libs/libm/newlib/Make.defs
index db8d4f11696..91540687235 100644
--- a/libs/libm/newlib/Make.defs
+++ b/libs/libm/newlib/Make.defs
@@ -89,6 +89,13 @@ VPATH += :newlib/newlib/newlib/libm/fenv
 CFLAGS += ${INCDIR_PREFIX}newlib/newlib/newlib/libc/machine/shared_x86/sys
 endif
 
+# aggresive optimisation can replace occurrences of sinl() and cosl() with
+# sincosl(), but sincosl() is missing in newlib which causes error. So let's
+# use custom implementation here.
+
+CSRCS += newlib/sincosl.c
+VPATH += :newlib
+
 ifeq ($(CONFIG_LIBM_NEWLIB_HW_FP),y)
   CSRCS += $(wildcard newlib/newlib/newlib/libm/mathfp/*.c)
   VPATH += :newlib/newlib/newlib/libm/mathfp
diff --git a/libs/libm/newlib/sincosl.c b/libs/libm/newlib/sincosl.c
new file mode 100644
index 00000000000..3ff68362653
--- /dev/null
+++ b/libs/libm/newlib/sincosl.c
@@ -0,0 +1,35 @@
+/****************************************************************************
+ * libs/libm/newlib/sincosl.c
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <math.h>
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+void sincosl(long double x, long double *s, long double *c)
+{
+  *s = sinl(x);
+  *c = cosl(x);
+}