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cmake: Removing the need for always rebuild

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Fixes: #8210

This commit removes the need for always rebuild when generating the
syscalls.json.

It find the files and subfolders of the include directory and makes
syscalls depends on those.
To find added files / subfolders on all platforms CMake configure
is also depending on the folders found.
This ensures that added files / folders will also be detected at later
stages.

Signed-off-by: Torsten Rasmussen <torsten.rasmussen@nordicsemi.no>
This commit is contained in:
Torsten Rasmussen 2018-06-06 14:47:58 +02:00 committed by Carles Cufí
parent 2800729614
commit a74e80fa5f
1 changed files with 14 additions and 4 deletions
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18
CMakeLists.txt
View file

@ -342,9 +342,19 @@ add_custom_command( OUTPUT ${syscall_macros_h}
DEPENDS ${PROJECT_SOURCE_DIR}/scripts/gen_syscall_header.py
)
# This command is a hack to support commands that are always run. Any
# target that depends on always_rebuild will always be rebuilt.
add_custom_command(OUTPUT always_rebuild COMMAND cmake -E echo Building for board ${BOARD})
file(
GLOB
PARSE_SYSCALLS_HEADER_DEPENDS
${PROJECT_SOURCE_DIR}/include/**/*.h
)
# Looping over each file to depend and take the directory component
# We want to monitor each folder to detect added / removed files.
foreach(HEADER IN ITEMS ${PARSE_SYSCALLS_HEADER_DEPENDS})
get_filename_component(HEADER_PATH ${HEADER} DIRECTORY)
list(APPEND PARSE_SYSCALLS_PATHS_DEPENDS ${HEADER_PATH})
list(REMOVE_DUPLICATES PARSE_SYSCALLS_PATHS_DEPENDS)
endforeach()
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS ${PARSE_SYSCALLS_PATHS_DEPENDS})
set(syscall_list_h ${CMAKE_CURRENT_BINARY_DIR}/include/generated/syscall_list.h)
set(syscalls_json ${CMAKE_CURRENT_BINARY_DIR}/misc/generated/syscalls.json)
@ -357,7 +367,7 @@ add_custom_command(
${PROJECT_SOURCE_DIR}/scripts/parse_syscalls.py
--include ${PROJECT_SOURCE_DIR}/include # Read files from this dir
--json-file ${syscalls_json} # Write this file
DEPENDS always_rebuild
DEPENDS ${PARSE_SYSCALLS_PATHS_DEPENDS} ${PARSE_SYSCALLS_HEADER_DEPENDS}
)
add_custom_target(syscall_list_h_target DEPENDS ${syscall_list_h})