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llext: add llext_* configuration functions

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Remove the C_FLAGS argument from add_llext_target() and add a set of
functions to configure the compilation and linking of an llext using
the same API of the target_* functions.

Signed-off-by: Luca Burelli <l.burelli@arduino.cc>
This commit is contained in:
Luca Burelli 2024-02-01 11:40:22 +01:00 committed by Carles Cufí
parent 1e47c64266
commit f50d476ee6
1 changed files with 36 additions and 7 deletions
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43
cmake/modules/extensions.cmake
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@ -35,6 +35,8 @@ include(CheckCXXCompilerFlag)
# 5.1. zephyr_linker*
# 6 Function helper macros
# 7 Linkable loadable extensions (llext)
# 7.1 llext_* configuration functions
# 7.2 add_llext_* build control functions
########################################################
# 1. Zephyr-aware extensions
@ -5099,6 +5101,38 @@ endmacro()
# loadable extensions (llexts).
#
# 7.1 Configuration functions
#
# The following functions simplify access to the compilation/link stage
# properties of an llext using the same API of the target_* functions.
#
function(llext_compile_definitions target_name)
target_compile_definitions(${target_name}_llext_lib PRIVATE ${ARGN})
endfunction()
function(llext_compile_features target_name)
target_compile_features(${target_name}_llext_lib PRIVATE ${ARGN})
endfunction()
function(llext_compile_options target_name)
target_compile_options(${target_name}_llext_lib PRIVATE ${ARGN})
endfunction()
function(llext_include_directories target_name)
target_include_directories(${target_name}_llext_lib PRIVATE ${ARGN})
endfunction()
function(llext_link_options target_name)
target_link_options(${target_name}_llext_lib PRIVATE ${ARGN})
endfunction()
# 7.2 Build control functions
#
# The following functions add targets and subcommands to the build system
# to compile and link an llext.
#
# Usage:
# add_llext_target(<target_name>
# OUTPUT <output_file>
@ -5114,9 +5148,6 @@ endmacro()
# in the Zephyr build, but with some important modifications. The list of
# flags to remove and flags to append is controlled respectively by the
# LLEXT_REMOVE_FLAGS and LLEXT_APPEND_FLAGS global variables.
# The C_FLAGS argument can be used to pass additional compiler flags to the
# compilation of this particular llext.
#
# The following custom properties of <target_name> are defined and can be
# retrieved using the get_target_property() function:
@ -5130,14 +5161,13 @@ endmacro()
# add_llext_target(hello_world
# OUTPUT ${PROJECT_BINARY_DIR}/hello_world.llext
# SOURCES ${PROJECT_SOURCE_DIR}/src/llext/hello_world.c
# C_FLAGS -Werror
# )
# will compile the source file src/llext/hello_world.c to a file
# ${PROJECT_BINARY_DIR}/hello_world.llext, adding -Werror to the compilation.
# named "${PROJECT_BINARY_DIR}/hello_world.llext".
#
function(add_llext_target target_name)
set(single_args OUTPUT)
set(multi_args SOURCES;C_FLAGS)
set(multi_args SOURCES)
cmake_parse_arguments(PARSE_ARGV 1 LLEXT "${options}" "${single_args}" "${multi_args}")
# Check that the llext subsystem is enabled for this build
@ -5201,7 +5231,6 @@ function(add_llext_target target_name)
target_compile_options(${llext_lib_target} PRIVATE
${zephyr_filtered_flags}
${LLEXT_APPEND_FLAGS}
${LLEXT_C_FLAGS}
)
target_include_directories(${llext_lib_target} PRIVATE
$<TARGET_PROPERTY:zephyr_interface,INTERFACE_INCLUDE_DIRECTORIES>