wut/share/wut.cmake
Ash Logan 4374621f4b wut.ld: make __rpx_start the default entry symbol, remove rpx.specs
ld will now auto-link everything to __rpx_start and pull in the correct 
crt *unless* rpl.specs is given on the commandline
2019-05-03 18:02:15 +10:00

67 lines
2.5 KiB
CMake

cmake_minimum_required(VERSION 3.2)
# Links against wutnewlib
macro(wut_enable_newlib target)
message(DEPRECATION "wut_enable_newlib is deprecated and has no effect - it is always enabled; and the macro will be removed in a future release. Please remove it from your CMakeLists.")
endmacro()
# Links against stdc++ wutstdc++ and set -std=c++17
macro(wut_enable_stdcpp target)
message(DEPRECATION "wut_enable_stdcpp is deprecated and has no effect - it is always enabled when using C++; and the macro will be removed in a future release. Please remove it from your CMakeLists.")
endmacro()
# Links against devoptab
macro(wut_enable_devoptab target)
message(DEPRECATION "wut_enable_devoptab is deprecated and has no effect - it is always enabled; and the macro will be removed in a future release. Please remove it from your CMakeLists.")
endmacro()
# Links against wutmalloc
macro(wut_default_malloc target)
message(DEPRECATION "wut_default_malloc is deprecated and has no effect - it is always enabled; and the macro will be removed in a future release. Please remove it from your CMakeLists.")
endmacro()
# Generates ${target}_exports.s from an exports file and adds it to the build
macro(wut_add_exports target exports_file)
set(RPL_EXPORTS_FILE ${exports_file})
if(NOT IS_ABSOLUTE ${exports_file})
set(RPL_EXPORTS_FILE "${CMAKE_CURRENT_SOURCE_DIR}/${exports_file}")
endif()
set(RPL_EXPORT_GEN_OUTPUT ${target}_exports.s)
add_custom_command(
OUTPUT ${RPL_EXPORT_GEN_OUTPUT}
COMMAND ${WUT_RPLEXPORTGEN} ${RPL_EXPORTS_FILE} ${RPL_EXPORT_GEN_OUTPUT}
DEPENDS ${RPL_EXPORTS_FILE})
target_sources(${target} PRIVATE ${RPL_EXPORT_GEN_OUTPUT})
set_source_files_properties(${RPL_EXPORT_GEN_OUTPUT} PROPERTIES LANGUAGE C)
endmacro()
function(wut_create_rpl target source)
set(RPL_OPTIONS IS_RPX)
set(RPL_SINGLE_ARGS "")
set(RPL_MULTI_ARGS "")
cmake_parse_arguments(RPL "${RPL_OPTIONS}" "${RPL_SINGLE_ARGS}" "${RPL_MULTI_ARGS}" "${ARGN}")
if(RPL_IS_RPX)
# Do nothing - the defaults are good for RPX
else()
set(ELF2RPL_FLAGS ${ELF2RPL_FLAGS} --rpl)
set_property(TARGET ${source} APPEND_STRING PROPERTY
LINK_FLAGS "-specs=${WUT_ROOT}/share/rpl.specs")
endif()
add_custom_target(${target} ALL
COMMAND ${CMAKE_STRIP} -g ${source}
COMMAND ${WUT_ELF2RPL} ${ELF2RPL_FLAGS} ${source} ${target}
DEPENDS ${source}
COMMENT "Converting to RPX ${target}")
add_dependencies(${target} ${source})
endfunction()
function(wut_create_rpx)
wut_create_rpl(${ARGV} IS_RPX)
endfunction()