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Meta: Make generate_state_machine() generate a proper target

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And use GENERATED_SOURCES (or add_dependencies) to make LibVT depend on
that target.
Fixes a FIXME.
This commit is contained in:
Ali Mohammad Pur 2021-05-20 14:14:23 +04:30 committed by Linus Groh
parent a42bf04701
commit c6b12841ee
Notes: sideshowbarker 2024-07-18 17:42:58 +09:00 
Author: https://github.com/alimpfard
Commit: https://github.com/SerenityOS/serenity/commit/c6b12841eef
Pull-request: https://github.com/SerenityOS/serenity/pull/7308
Reviewed-by: https://github.com/linusg
3 changed files with 24 additions and 13 deletions
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3
Kernel/CMakeLists.txt
View file

@ -293,7 +293,6 @@ generate_state_machine(../Userland/Libraries/LibVT/StateMachine.txt ../Userland/
set(VT_SOURCES
../Userland/Libraries/LibVT/Terminal.cpp
../Userland/Libraries/LibVT/Line.cpp
../Userland/Libraries/LibVT/EscapeSequenceStateMachine.h
../Userland/Libraries/LibVT/EscapeSequenceParser.cpp
)
@ -376,6 +375,8 @@ else()
endif()
add_executable(Kernel ${SOURCES})
add_dependencies(Kernel generate_EscapeSequenceStateMachine.h)
if (ENABLE_KERNEL_LTO)
include(CheckIPOSupported)
check_ipo_supported()

26
Meta/CMake/utils.cmake
View file

@ -169,13 +169,21 @@ function(embed_resource target section file)
endfunction()
function(generate_state_machine source header)
set(source ${CMAKE_CURRENT_SOURCE_DIR}/${source})
add_custom_command(
OUTPUT ${header}
COMMAND ${write_if_different} ${header} ${CMAKE_BINARY_DIR}/Userland/DevTools/StateMachineGenerator/StateMachineGenerator ${source} > ${header}
VERBATIM
DEPENDS StateMachineGenerator
MAIN_DEPENDENCY ${source}
)
get_filename_component(output_name ${header} NAME)
get_filename_component(header_name ${header} NAME)
set(target_name "generate_${header_name}")
# Note: This function is called twice with the same header, once in the kernel
# and once in Userland/LibVT, this check makes sure that only one target
# is generated for that header.
if(NOT TARGET ${target_name})
set(source ${CMAKE_CURRENT_SOURCE_DIR}/${source})
set(output ${CMAKE_CURRENT_SOURCE_DIR}/${header})
add_custom_command(
OUTPUT ${output}
COMMAND ${write_if_different} ${output} ${CMAKE_BINARY_DIR}/Userland/DevTools/StateMachineGenerator/StateMachineGenerator ${source}
VERBATIM
DEPENDS StateMachineGenerator
MAIN_DEPENDENCY ${source}
)
add_custom_target(${target_name} DEPENDS ${output})
endif()
endfunction()

8
Userland/Libraries/LibVT/CMakeLists.txt
View file

@ -1,6 +1,3 @@
# FIXME: this assumes that EscapeSequenceStateMachine.h has been
# already generated when the kernel was built. This will probably
# mess builds up later on.
set(SOURCES
Line.cpp
Terminal.cpp
@ -8,5 +5,10 @@ set(SOURCES
EscapeSequenceParser.cpp
)
set(GENERATED_SOURCES
EscapeSequenceStateMachine.h
)
generate_state_machine(StateMachine.txt EscapeSequenceStateMachine.h)
serenity_lib(LibVT vt)
target_link_libraries(LibVT LibC LibCore LibGUI LibGfx LibDesktop)