lib: crc: move from lib/os to lib/crc

Move crc implementation to own directory and reduce clutter in lib/os.

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

lib/CMakeLists.txt

@@ -1,5 +1,6 @@
 # SPDX-License-Identifier: Apache-2.0
 
+add_subdirectory(crc)
 if(NOT CONFIG_EXTERNAL_LIBC)
 add_subdirectory(libc)
 add_subdirectory(posix)

lib/Kconfig

@@ -5,6 +5,8 @@ source "lib/libc/Kconfig"
 
 source "lib/cpp/Kconfig"
 
+source "lib/crc/Kconfig"
+
 menu "Additional libraries"
 
 source "lib/hash/Kconfig"

lib/crc/CMakeLists.txt

@@ -0,0 +1,10 @@
+# SPDX-License-Identifier: Apache-2.0
+
+zephyr_sources_ifdef(CONFIG_CRC
+  crc32c_sw.c
+  crc32_sw.c
+  crc16_sw.c
+  crc8_sw.c
+  crc7_sw.c
+  )
+zephyr_sources_ifdef(CONFIG_CRC_SHELL crc_shell.c)

lib/crc/Kconfig

@@ -0,0 +1,16 @@
+# Copyright (c) 2016,2023 Intel Corporation
+# SPDX-License-Identifier: Apache-2.0
+#
+config CRC
+	bool "Cyclic redundancy check (CRC) Support"
+	help
+	  Enable use of CRC.
+
+if CRC
+config CRC_SHELL
+	bool "CRC Shell"
+	depends on SHELL
+	select GETOPT
+	help
+	  Enable CRC checking for memory regions from the shell.
+endif # CRC

lib/os/CMakeLists.txt

@@ -24,14 +24,6 @@ zephyr_sources(
 
 zephyr_sources_ifdef(CONFIG_ONOFF onoff.c)
 zephyr_sources_ifdef(CONFIG_NOTIFY notify.c)
-zephyr_sources_ifdef(CONFIG_CRC
-  crc32c_sw.c
-  crc32_sw.c
-  crc16_sw.c
-  crc8_sw.c
-  crc7_sw.c
-  )
-zephyr_sources_ifdef(CONFIG_CRC_SHELL crc_shell.c)
 
 zephyr_sources_ifdef(CONFIG_CBPRINTF_COMPLETE cbprintf_complete.c)
 zephyr_sources_ifdef(CONFIG_CBPRINTF_NANO cbprintf_nano.c)

lib/os/Kconfig

@@ -26,20 +26,6 @@ config BASE64
 	help
 	  Enable base64 encoding and decoding functionality
 
-config CRC
-	bool "Cyclic redundancy check (CRC) Support"
-	help
-	  Enable use of CRC.
-
-if CRC
-config CRC_SHELL
-	bool "CRC Shell"
-	depends on SHELL
-	select GETOPT
-	help
-	  Enable CRC checking for memory regions from the shell.
-endif # CRC
-
 config PRINTK_SYNC
 	bool "Serialize printk() calls"
 	default y if SMP && MP_NUM_CPUS > 1 && !(EFI_CONSOLE && LOG)