applications: sdp: Add asm_gen target

Added asm_gen target, which is needed to generate
assembler files for the hard real time part.

Signed-off-by: Jakub Zymelka <[email protected]>

applications/sdp/gpio/CMakeLists.txt

@@ -9,6 +9,8 @@ cmake_minimum_required(VERSION 3.20.0)
 find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
 project(emulated_gpio)
 
+include(${ZEPHYR_NRF_MODULE_DIR}/cmake/sdp.cmake)
+
 target_sources_ifdef(CONFIG_GPIO_NRFE_EGPIO_BACKEND_ICMSG app PRIVATE src/nrfe_icmsg.c)
 target_sources_ifdef(CONFIG_GPIO_NRFE_EGPIO_BACKEND_MBOX app PRIVATE  src/nrfe_mbox.c)
 target_sources(app PRIVATE src/main.c)

applications/sdp/gpio/src/hrt/hrt.c

@@ -0,0 +1,21 @@
+/*
+ * Copyright (c) 2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+#include <hal/nrf_vpr_csr_vio.h>
+
+void set_direction(void)
+{
+	nrf_vpr_csr_vio_dir_set(0xA);
+	nrf_vpr_csr_vio_dir_set(0xB);
+	nrf_vpr_csr_vio_dir_set(0xC);
+}
+
+void set_output(void)
+{
+	nrf_vpr_csr_vio_out_set(0xA);
+	nrf_vpr_csr_vio_dir_set(0xB);
+	nrf_vpr_csr_vio_dir_set(0xC);
+}

applications/sdp/gpio/src/hrt/hrt.s

@@ -0,0 +1,30 @@
+	.file	"hrt.c"
+	.option nopic
+	.attribute arch, "rv32e1p9_m2p0_c2p0_zicsr2p0_zifencei2p0"
+	.attribute unaligned_access, 0
+	.attribute stack_align, 4
+	.text
+	.section	.text.set_direction,"ax",@progbits
+	.align	1
+	.globl	set_direction
+	.type	set_direction, @function
+set_direction:
+ #APP
+	csrw 3009, 10
+	csrw 3009, 11
+	csrw 3009, 12
+ #NO_APP
+	ret
+	.size	set_direction, .-set_direction
+	.section	.text.set_output,"ax",@progbits
+	.align	1
+	.globl	set_output
+	.type	set_output, @function
+set_output:
+ #APP
+	csrw 3008, 10
+	csrw 3009, 11
+	csrw 3009, 12
+ #NO_APP
+	ret
+	.size	set_output, .-set_output

cmake/sdp.cmake

@@ -0,0 +1,34 @@
+#
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+function(sdp_assembly_generate)
+  set(hrt_dir ${PROJECT_SOURCE_DIR}/src/hrt)
+  set(hrt_src ${hrt_dir}/hrt.c)
+  set(hrt_msg "Generating ASM file for Hard Real Time files.")
+
+  # The external static library that we are linking with does not know
+  # how to build for this platform so we export all the flags used in
+  # this zephyr build to the external build system.
+  zephyr_get_compile_options_for_lang(C hrt_opt)
+  zephyr_get_compile_definitions_for_lang(C hrt_def)
+  zephyr_get_include_directories_for_lang(C hrt_inc)
+  zephyr_get_system_include_directories_for_lang(C hrt_sys)
+  # Replace "-I" with "-isystem" to treat all Zephyr headers as system headers
+  # that do not trigger -Werror.
+  string(REPLACE "-I" "-isystem" hrt_inc "${hrt_inc}")
+
+  zephyr_include_directories(include)
+
+  add_custom_target(asm_gen
+    COMMAND ${CMAKE_C_COMPILER} ${hrt_def} ${hrt_opt} ${hrt_inc} ${hrt_sys} -g0 -P -fno-ident -fno-verbose-asm  -S ${hrt_src}
+    COMMAND python3 ${ZEPHYR_NRF_MODULE_DIR}/scripts/sdp/clean_asm.py ${hrt_dir}
+    WORKING_DIRECTORY "${hrt_dir}"
+    COMMAND_EXPAND_LISTS
+    COMMENT ${hrt_msg}
+  )
+endfunction()
+
+sdp_assembly_generate()

scripts/sdp/clean_asm.py

@@ -0,0 +1,48 @@
+#!/usr/bin/env python3
+#
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+import os
+import sys
+
+def clean_assembly_file(input_file):
+    """Cleans an assembly file by removing lines starting with # and saves the changes in the same file."""
+    with open(input_file, 'r') as infile:
+        lines = infile.readlines()
+
+    # Filter out lines starting with #
+    cleaned_lines = [line for line in lines if not line.startswith('#')]
+
+    # Save the cleaned file in the same file
+    with open(input_file, 'w') as outfile:
+        outfile.writelines(cleaned_lines)
+
+    print(f"File {input_file} has been cleaned of comments.")
+
+def process_directory(directory):
+    """Processes all .s files in the directory."""
+    for root, dirs, files in os.walk(directory):
+        for file in files:
+            if file.endswith('.s'):
+                input_file = os.path.join(root, file)
+                clean_assembly_file(input_file)
+
+def main(path):
+    """Checks if given path is a file or a directory and processes it accordingly."""
+    if os.path.isfile(path) and path.endswith('.s'):
+        # If a single .s file is provided
+        clean_assembly_file(path)
+    elif os.path.isdir(path):
+        # If a directory is provided
+        process_directory(path)
+    else:
+        print("The provided path is neither a .s file nor a directory.")
+
+if __name__ == "__main__":
+    if len(sys.argv) != 2:
+        print("Usage: python clean_asm.py <file.or.directory>")
+    else:
+        main(sys.argv[1])