Samsung · namanjain7 · Mar 13, 2026
diff --git a/build/configs/bk7239n/loadable_all/defconfig b/build/configs/bk7239n/loadable_all/defconfig
@@ -139,7 +139,7 @@ CONFIG_ARMV8M_DCACHE=y
 # CONFIG_ARMV8M_TOOLCHAIN_CODESOURCERYL is not set
 CONFIG_ARMV8M_TOOLCHAIN_GNU_EABIL=y
 # CONFIG_ARMV8M_TOOLCHAIN_CLANGL is not set
-# CONFIG_ARMV8M_TARGET2_PREL is not set
+CONFIG_ARMV8M_TARGET2_PREL=y
 # CONFIG_ARMV8M_HAVE_STACKCHECK is not set
 # CONFIG_ARMV8M_ITMSYSLOG is not set
 
@@ -1030,11 +1030,6 @@ CONFIG_EASY_FLASH=y
 #
 CONFIG_EASY_FLASH_V4=y
 
-#
-# Secure Deployment
-#
-# CONFIG_SECURE_DEPLOYMENT is not set
-
 #
 # Bk_libs
 #
@@ -1185,7 +1180,7 @@ CONFIG_NAME_MAX=32
 #
 CONFIG_BOARD_INITIALIZE=y
 # CONFIG_BOARD_INITTHREAD is not set
-# CONFIG_SCHED_STARTHOOK is not set
+CONFIG_SCHED_STARTHOOK=y
 CONFIG_SCHED_ATEXIT=y
 CONFIG_SCHED_ONEXIT=y
 
@@ -1638,6 +1633,7 @@ CONFIG_LWIP_DHCPS_ADDITIONAL_DNS=y
 # CONFIG_NETUTILS_TFTPC is not set
 # CONFIG_NETUTILS_TELNETD is not set
 # CONFIG_NETUTILS_SMTP is not set
+# CONFIG_GRPC is not set
 # CONFIG_NETUTILS_MQTT is not set
 CONFIG_NET_SECURITY_TLS=y
 CONFIG_TLS_WITH_HW_ACCEL=y
@@ -1961,8 +1957,8 @@ CONFIG_LIBC_FLOATPRECISION=6
 CONFIG_LIBC_SCANSET=y
 # CONFIG_NOPRINTF_LONGLONG_TO_ASCII is not set
 # CONFIG_LIBC_IOCTL_VARIADIC is not set
-# CONFIG_LIBC_WCHAR is not set
-# CONFIG_LIBC_LOCALE is not set
+CONFIG_LIBC_WCHAR=y
+CONFIG_LIBC_LOCALE=y
 CONFIG_LIB_RAND_ORDER=1
 # CONFIG_EOL_IS_CR is not set
 # CONFIG_EOL_IS_LF is not set
@@ -2008,8 +2004,20 @@ CONFIG_LIBC_SYMTAB=y
 #
 # Basic CXX Support
 #
-# CONFIG_C99_BOOL8 is not set
-# CONFIG_HAVE_CXX is not set
+CONFIG_C99_BOOL8=y
+CONFIG_HAVE_CXX=y
+# CONFIG_CXX_VERSION_11 is not set
+CONFIG_CXX_VERSION_14=y
+# CONFIG_CXX_VERSION_17 is not set
+CONFIG_CXX_NEWLONG=y
+
+#
+# LLVM C++ Library (libcxx)
+#
+CONFIG_LIBCXX=y
+CONFIG_LIBCXX_EXCEPTION=y
+CONFIG_LIBCXX_IOSTREAM_BUFSIZE=32
+CONFIG_LIBCXX_HAVE_LIBSUPCXX=y
 
 #
 # External Libraries
@@ -2023,9 +2031,11 @@ CONFIG_LIBC_SYMTAB=y
 #
 # CONFIG_ENABLE_CURL is not set
 # CONFIG_ERROR_REPORT is not set
+# CONFIG_GMOCK is not set
 # CONFIG_ENABLE_IOTIVITY is not set
 CONFIG_NETUTILS_JSON=y
 # CONFIG_LIBTUV is not set
+# CONFIG_PROTOBUF is not set
 # CONFIG_LWM2M_WAKAAMA is not set
 # CONFIG_WIFI_MBOX is not set
 CONFIG_STRESS_TOOL=y
@@ -2055,6 +2065,7 @@ CONFIG_ELF_BUFFERSIZE=32
 CONFIG_ELF_BUFFERINCR=32
 CONFIG_ELF_EXCLUDE_SYMBOLS=y
 # CONFIG_ELF_CACHE_READ is not set
+CONFIG_BINFMT_CONSTRUCTORS=y
 # CONFIG_SYMTAB_ORDEREDBYNAME is not set
 CONFIG_OPTIMIZE_APP_RELOAD_TIME=y
 CONFIG_BINFMT_SECTION_UNIFIED_MEMORY=y
@@ -2078,6 +2089,7 @@ CONFIG_COMPRESSION_BLOCK_SIZE=16384
 # CONFIG_ENTRY_MANUAL is not set
 # CONFIG_ENTRY_BLE_TESTER is not set
 CONFIG_ENTRY_HELLO=y
+# CONFIG_ENTRY_HELLOXX is not set
 # CONFIG_ENTRY_KERNEL_UPDATE is not set
 # CONFIG_ENTRY_MEM_PROTECT_TEST is not set
 # CONFIG_ENTRY_MEMORY_FRAGMENTATION_TEST is not set
@@ -2097,6 +2109,9 @@ CONFIG_BUILTIN_APPS=y
 #
 # SoundPlayer App
 #
+# CONFIG_EXAMPLES_PLAYERCONTROLLER is not set
+# CONFIG_EXAMPLES_SOUNDPLAYER is not set
+# CONFIG_EXAMPLES_AVS_TEST is not set
 # CONFIG_EXAMPLES_AWS is not set
 CONFIG_EXAMPLES_BLE_PERFS=y
 CONFIG_EXAMPLES_BLE_RMC=y
@@ -2129,6 +2144,7 @@ CONFIG_SMARTFS_TEST=y
 #
 # CONFIG_EXAMPLES_HEAVY_SIGNAL_MESSAGE_TEST is not set
 CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_HELLOXX=y
 # CONFIG_EXAMPLES_IOTBUS_TEST is not set
 # CONFIG_EXAMPLES_IOTJS_STARTUP is not set
 # CONFIG_EXAMPLES_KERNEL_SAMPLE is not set
@@ -2255,6 +2271,7 @@ CONFIG_EXAMPLES_TESTCASE_SECURITY_FRAMEWORK_UTC=y
 # CONFIG_EXAMPLES_TESTCASE_SECURITY_FRAMEWORK_UTC_CRYPTO is not set
 # CONFIG_EXAMPLES_TESTCASE_SECURITY_FRAMEWORK_UTC_KEYMGR is not set
 # CONFIG_EXAMPLES_TESTCASE_SECURITY_FRAMEWORK_UTC_SS is not set
+# CONFIG_LIBCXX_UTC is not set
 # CONFIG_EXAMPLES_TIMER is not set
 
 #
@@ -2267,6 +2284,7 @@ CONFIG_UART_HW_TEST=y
 CONFIG_EXAMPLES_UART_LOOPBACK=y
 CONFIG_EXAMPLES_UART_LOOPBACK_PORT=2
 # CONFIG_EXAMPLES_VIRTKEY is not set
+# CONFIG_EXAMPLES_WAKEREC is not set
 
 #
 # Wifi Manager

diff --git a/build/configs/bk7239n/loadable_apps/defconfig b/build/configs/bk7239n/loadable_apps/defconfig
@@ -139,7 +139,7 @@ CONFIG_ARMV8M_DCACHE=y
 # CONFIG_ARMV8M_TOOLCHAIN_CODESOURCERYL is not set
 CONFIG_ARMV8M_TOOLCHAIN_GNU_EABIL=y
 # CONFIG_ARMV8M_TOOLCHAIN_CLANGL is not set
-# CONFIG_ARMV8M_TARGET2_PREL is not set
+CONFIG_ARMV8M_TARGET2_PREL=y
 # CONFIG_ARMV8M_HAVE_STACKCHECK is not set
 # CONFIG_ARMV8M_ITMSYSLOG is not set
 
@@ -1030,11 +1030,6 @@ CONFIG_EASY_FLASH=y
 #
 CONFIG_EASY_FLASH_V4=y
 
-#
-# Secure Deployment
-#
-# CONFIG_SECURE_DEPLOYMENT is not set
-
 #
 # Bk_libs
 #
@@ -1185,7 +1180,7 @@ CONFIG_NAME_MAX=32
 #
 CONFIG_BOARD_INITIALIZE=y
 # CONFIG_BOARD_INITTHREAD is not set
-# CONFIG_SCHED_STARTHOOK is not set
+CONFIG_SCHED_STARTHOOK=y
 CONFIG_SCHED_ATEXIT=y
 CONFIG_SCHED_ONEXIT=y
 
@@ -1639,6 +1634,7 @@ CONFIG_LWIP_DHCPS_ADDITIONAL_DNS=y
 # CONFIG_NETUTILS_TFTPC is not set
 # CONFIG_NETUTILS_TELNETD is not set
 # CONFIG_NETUTILS_SMTP is not set
+# CONFIG_GRPC is not set
 # CONFIG_NETUTILS_MQTT is not set
 CONFIG_NET_SECURITY_TLS=y
 CONFIG_TLS_WITH_HW_ACCEL=y
@@ -1963,8 +1959,8 @@ CONFIG_LIBC_FLOATPRECISION=6
 CONFIG_LIBC_SCANSET=y
 # CONFIG_NOPRINTF_LONGLONG_TO_ASCII is not set
 # CONFIG_LIBC_IOCTL_VARIADIC is not set
-# CONFIG_LIBC_WCHAR is not set
-# CONFIG_LIBC_LOCALE is not set
+CONFIG_LIBC_WCHAR=y
+CONFIG_LIBC_LOCALE=y
 CONFIG_LIB_RAND_ORDER=1
 # CONFIG_EOL_IS_CR is not set
 # CONFIG_EOL_IS_LF is not set
@@ -2010,8 +2006,20 @@ CONFIG_LIBC_SYMTAB=y
 #
 # Basic CXX Support
 #
-# CONFIG_C99_BOOL8 is not set
-# CONFIG_HAVE_CXX is not set
+CONFIG_C99_BOOL8=y
+CONFIG_HAVE_CXX=y
+# CONFIG_CXX_VERSION_11 is not set
+CONFIG_CXX_VERSION_14=y
+# CONFIG_CXX_VERSION_17 is not set
+CONFIG_CXX_NEWLONG=y
+
+#
+# LLVM C++ Library (libcxx)
+#
+CONFIG_LIBCXX=y
+CONFIG_LIBCXX_EXCEPTION=y
+CONFIG_LIBCXX_IOSTREAM_BUFSIZE=32
+CONFIG_LIBCXX_HAVE_LIBSUPCXX=y
 
 #
 # External Libraries
@@ -2025,9 +2033,11 @@ CONFIG_LIBC_SYMTAB=y
 #
 # CONFIG_ENABLE_CURL is not set
 # CONFIG_ERROR_REPORT is not set
+# CONFIG_GMOCK is not set
 # CONFIG_ENABLE_IOTIVITY is not set
 CONFIG_NETUTILS_JSON=y
 # CONFIG_LIBTUV is not set
+# CONFIG_PROTOBUF is not set
 # CONFIG_LWM2M_WAKAAMA is not set
 # CONFIG_WIFI_MBOX is not set
 CONFIG_STRESS_TOOL=y
@@ -2057,6 +2067,7 @@ CONFIG_ELF_BUFFERSIZE=32
 CONFIG_ELF_BUFFERINCR=32
 CONFIG_ELF_EXCLUDE_SYMBOLS=y
 # CONFIG_ELF_CACHE_READ is not set
+CONFIG_BINFMT_CONSTRUCTORS=y
 # CONFIG_SYMTAB_ORDEREDBYNAME is not set
 CONFIG_OPTIMIZE_APP_RELOAD_TIME=y
 CONFIG_BINFMT_SECTION_UNIFIED_MEMORY=y
@@ -2080,6 +2091,7 @@ CONFIG_COMPRESSION_BLOCK_SIZE=16384
 # CONFIG_ENTRY_MANUAL is not set
 # CONFIG_ENTRY_BLE_TESTER is not set
 CONFIG_ENTRY_HELLO=y
+# CONFIG_ENTRY_HELLOXX is not set
 # CONFIG_ENTRY_KERNEL_UPDATE is not set
 # CONFIG_ENTRY_MEM_PROTECT_TEST is not set
 # CONFIG_ENTRY_MEMORY_FRAGMENTATION_TEST is not set
@@ -2100,6 +2112,9 @@ CONFIG_BUILTIN_APPS=y
 #
 # SoundPlayer App
 #
+# CONFIG_EXAMPLES_PLAYERCONTROLLER is not set
+# CONFIG_EXAMPLES_SOUNDPLAYER is not set
+# CONFIG_EXAMPLES_AVS_TEST is not set
 # CONFIG_EXAMPLES_AWS is not set
 CONFIG_EXAMPLES_BLE_PERFS=y
 CONFIG_EXAMPLES_BLE_RMC=y
@@ -2132,6 +2147,7 @@ CONFIG_SMARTFS_TEST=y
 #
 # CONFIG_EXAMPLES_HEAVY_SIGNAL_MESSAGE_TEST is not set
 CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_HELLOXX=y
 # CONFIG_EXAMPLES_IOTBUS_TEST is not set
 # CONFIG_EXAMPLES_IOTJS_STARTUP is not set
 # CONFIG_EXAMPLES_KERNEL_SAMPLE is not set
@@ -2259,6 +2275,7 @@ CONFIG_EXAMPLES_TESTCASE_SECURITY_FRAMEWORK_UTC=y
 # CONFIG_EXAMPLES_TESTCASE_SECURITY_FRAMEWORK_UTC_CRYPTO is not set
 # CONFIG_EXAMPLES_TESTCASE_SECURITY_FRAMEWORK_UTC_KEYMGR is not set
 # CONFIG_EXAMPLES_TESTCASE_SECURITY_FRAMEWORK_UTC_SS is not set
+# CONFIG_LIBCXX_UTC is not set
 # CONFIG_EXAMPLES_TIMER is not set
 
 #
@@ -2271,6 +2288,7 @@ CONFIG_UART_HW_TEST=y
 CONFIG_EXAMPLES_UART_LOOPBACK=y
 CONFIG_EXAMPLES_UART_LOOPBACK_PORT=2
 # CONFIG_EXAMPLES_VIRTKEY is not set
+# CONFIG_EXAMPLES_WAKEREC is not set
 
 #
 # Wifi Manager

diff --git a/lib/libc/machine/arm/Make.defs b/lib/libc/machine/arm/Make.defs
@@ -61,7 +61,7 @@ include ${TOPDIR}/../lib/libc/machine/arm/armv7-m/Make.defs
 else ifeq ($(CONFIG_ARCH_CORTEXM7),y)   # Cortex-M7 is ARMv7E-M
 include ${TOPDIR}/../lib/libc/machine/arm/armv7-m/Make.defs
 else ifeq ($(CONFIG_ARCH_ARMV8M_FAMILY),y)   # Cortex-M33/M55 is ARMv8-M
-include ${TOPDIR}/../lib/libc/machine/arm/armv7-m/Make.defs
+include ${TOPDIR}/../lib/libc/machine/arm/armv8-m/Make.defs
 else ifeq ($(CONFIG_ARCH_ARMV7A_FAMILY),y)   # ARMV7A
 include ${TOPDIR}/../lib/libc/machine/arm/armv7-a/Make.defs
 endif

diff --git a/lib/libc/machine/arm/armv8-m/Make.defs b/lib/libc/machine/arm/armv8-m/Make.defs
@@ -0,0 +1,60 @@
+###########################################################################
+#
+# Copyright 2026 Samsung Electronics All Rights Reserved.
+#
+# Licensed 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.
+#
+###########################################################################
+############################################################################
+# lib/libc/machine/arm/armv7-m/Make.defs
+#
+#   Copyright (C) 2017 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# 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.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
+# COPYRIGHT OWNER 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.
+#
+############################################################################
+
+ifeq ($(CONFIG_LIBC_ARCH_ELF),y)
+
+CSRCS += arch_elf.c
+
+DEPPATH += --dep-path machine/arm/armv8-m
+VPATH += :machine/arm/armv8-m
+
+endif