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]>

Author: jaz1-nordic

CMakeLists.txt

@@ -25,6 +25,7 @@ include(cmake/extensions.cmake)
 include(cmake/version.cmake)
 include(cmake/version_app.cmake)
 include(cmake/multi_image.cmake)
+include(cmake/sdp.cmake)
 
 zephyr_include_directories(include)
 

CODEOWNERS

@@ -597,6 +597,7 @@
 /scripts/ncs-docker-version.txt           @nrfconnect/ncs-ci
 /scripts/print_docker_image.sh            @nrfconnect/ncs-ci
 /scripts/print_toolchain_checksum.sh      @nrfconnect/ncs-ci
+/scripts/sdp/                             @nrfconnect/ncs-ll-ursus
 
 /scripts/hid_configurator/*.rst           @nrfconnect/ncs-si-bluebagel-doc
 /scripts/memfault/*.rst                   @nrfconnect/ncs-cia-doc

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)
 
+sdp_assembly_generate("${CMAKE_SOURCE_DIR}/src/hrt/hrt.c")
+
 target_sources(app PRIVATE src/main.c)
 target_sources_ifdef(CONFIG_GPIO_NRFE_EGPIO_BACKEND_ICMSG app PRIVATE src/backend/backend_icmsg.c)
 target_sources_ifdef(CONFIG_GPIO_NRFE_EGPIO_BACKEND_ICBMSG app PRIVATE src/backend/backend_icmsg.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);
+}

cmake/sdp.cmake

@@ -0,0 +1,51 @@
+#
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+function(sdp_assembly_generate hrt_srcs)
+  set(hrt_msg "Generating ASM files for Hard Real Time files.")
+  set(hrt_opts -g0 -fno-ident -fno-verbose-asm)
+
+  # Compiler 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 options)
+  zephyr_get_compile_definitions_for_lang(C defines)
+  zephyr_get_include_directories_for_lang(C includes)
+  zephyr_get_system_include_directories_for_lang(C sys_includes)
+  # Replace "-I" with "-isystem" to treat all Zephyr headers as system headers
+  # that do not trigger -Werror.
+  string(REPLACE "-I" "-isystem" includes "${includes}")
+
+  set(compiler_options ${defines} ${options} ${includes} ${sys_includes})
+
+  if(TARGET asm_gen)
+    message(FATAL_ERROR "sdp_assembly_generate() already called, please note that
+      sdp_assembly_generate() must be called only once with a list of all source files."
+    )
+  endif()
+
+  # Define the asm_gen target that depends on all generated assembly files
+  add_custom_target(asm_gen
+    COMMENT ${hrt_msg}
+  )
+
+  foreach(hrt_src ${hrt_srcs})
+    if(IS_DIRECTORY ${hrt_src})
+      message(FATAL_ERROR "sdp_assembly_generate() was called on a directory")
+    endif()
+    get_filename_component(src_filename ${hrt_src} NAME_WE)  # filename without extension
+    add_custom_command(TARGET asm_gen
+      BYPRODUCTS ${src_filename}-temp.s
+      COMMAND ${CMAKE_C_COMPILER} ${compiler_options} ${hrt_opts} -S ${hrt_src} -o ${src_filename}-temp.s
+      COMMAND ${PYTHON_EXECUTABLE} ${ZEPHYR_NRF_MODULE_DIR}/scripts/sdp/remove_comments.py ${src_filename}-temp.s
+      DEPENDS ${hrt_src}
+      COMMAND_EXPAND_LISTS
+      COMMENT "Generating ASM file for ${hrt_src}"
+    )
+  endforeach()
+
+  add_dependencies(asm_gen syscall_list_h_target)
+
+endfunction()

scripts/sdp/remove_comments.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 remove_comments_from_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, _, files in os.walk(directory):  # '_' instead of 'dirs' to ignore unused variable
+        for file in files:
+            if file.endswith('.s'):
+                input_file = os.path.join(root, file)
+                remove_comments_from_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
+        remove_comments_from_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])