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Allow CMake to generate query_config.c

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This one was trickier for two reasons:

1. It's used from another directory, see
https://gitlab.kitware.com/cmake/community/-/wikis/FAQ#how-can-i-add-a-dependency-to-a-source-file-which-is-generated-in-a-subdirectory

2. The C file being generated after CMake is run means CMake can't
automatically scan for included headers and do its usual magic, so we
need to declare the dependency and more importantly the include path.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
This commit is contained in:
Manuel Pégourié-Gonnard
2021-05-14 10:07:33 +02:00
committed by David Horstmann
parent 3a8413d316
commit 86cfa6c27f
2 changed files with 42 additions and 2 deletions
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27
programs/test/CMakeLists.txt
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@ -27,15 +27,40 @@ if(TEST_CPP)
target_link_libraries(cpp_dummy_build ${mbedcrypto_target})
endif()
find_package(Perl REQUIRED)
add_custom_command(
OUTPUT
${CMAKE_CURRENT_BINARY_DIR}/query_config.c
COMMAND
${PERL}
${CMAKE_CURRENT_SOURCE_DIR}/../../scripts/generate_query_config.pl
${CMAKE_CURRENT_SOURCE_DIR}/../../include/mbedtls/mbedtls_config.h
${CMAKE_CURRENT_SOURCE_DIR}/../../scripts/data_files/query_config.fmt
${CMAKE_CURRENT_BINARY_DIR}/query_config.c
DEPENDS
${CMAKE_CURRENT_SOURCE_DIR}/../../scripts/generate_query_config.pl
${CMAKE_CURRENT_SOURCE_DIR}/../../include/mbedtls/mbedtls_config.h
${CMAKE_CURRENT_SOURCE_DIR}/../../scripts/data_files/query_config.fmt
)
# this file will also be used in anoter directory, so create a target, see
# https://gitlab.kitware.com/cmake/community/-/wikis/FAQ#how-can-i-add-a-dependency-to-a-source-file-which-is-generated-in-a-subdirectory
add_custom_target(generate_query_config_c
DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/query_config.c)
foreach(exe IN LISTS executables_libs executables_mbedcrypto)
set(extra_sources "")
if(exe STREQUAL "query_compile_time_config")
list(APPEND extra_sources
${CMAKE_CURRENT_SOURCE_DIR}/query_config.c)
${CMAKE_CURRENT_SOURCE_DIR}/query_config.h
${CMAKE_CURRENT_BINARY_DIR}/query_config.c)
endif()
add_executable(${exe} ${exe}.c $<TARGET_OBJECTS:mbedtls_test>
${extra_sources})
target_include_directories(${exe} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR}/../../tests/include)
if(exe STREQUAL "query_compile_time_config")
target_include_directories(${exe} PRIVATE ${CMAKE_CURRENT_SOURCE_DIR})
endif()
# This emulates "if ( ... IN_LIST ... )" which becomes available in CMake 3.3
list(FIND executables_libs ${exe} exe_index)