| if (NOT TARGET pico_printf) |
| # library to be depended on - we make this depend on particular implementations using per target generator expressions |
| pico_add_library(pico_printf) |
| |
| # no custom implementation; falls thru to compiler |
| pico_add_library(pico_printf_compiler) |
| |
| target_include_directories(pico_printf_headers SYSTEM INTERFACE ${CMAKE_CURRENT_LIST_DIR}/include) |
| |
| # add alias "default" which is just pico. |
| add_library(pico_printf_default INTERFACE) |
| target_link_libraries(pico_printf_default INTERFACE pico_printf_pico) |
| |
| set(PICO_DEFAULT_PRINTF_IMPL pico_printf_default) |
| |
| target_link_libraries(pico_printf INTERFACE |
| $<IF:$<BOOL:$<TARGET_PROPERTY:PICO_TARGET_PRINTF_IMPL>>,$<TARGET_PROPERTY:PICO_TARGET_PRINTF_IMPL>,${PICO_DEFAULT_PRINTF_IMPL}>) |
| |
| pico_add_library(pico_printf_pico) |
| target_sources(pico_printf_pico INTERFACE |
| ${CMAKE_CURRENT_LIST_DIR}/printf.c |
| ) |
| target_link_libraries(pico_printf_pico INTERFACE pico_printf_headers) |
| |
| pico_add_library(pico_printf_none) |
| target_sources(pico_printf_none INTERFACE |
| ${CMAKE_CURRENT_LIST_DIR}/printf_none.S |
| ) |
| target_link_libraries(pico_printf_none INTERFACE pico_printf_headers) |
| |
| function(wrap_printf_functions TARGET) |
| # note that printf and vprintf are in pico_stdio so we can provide thread safety |
| pico_wrap_function(${TARGET} sprintf) |
| pico_wrap_function(${TARGET} snprintf) |
| pico_wrap_function(${TARGET} vsnprintf) |
| endfunction() |
| |
| wrap_printf_functions(pico_printf_pico) |
| wrap_printf_functions(pico_printf_none) |
| |
| # always hook printf for printf_none with out weak impl, as it is handled by pico_stdio |
| # but that library may not be included |
| pico_wrap_function(pico_printf_none printf) |
| |
| macro(pico_set_printf_implementation TARGET IMPL) |
| get_target_property(target_type ${TARGET} TYPE) |
| if ("EXECUTABLE" STREQUAL "${target_type}") |
| set_target_properties(${TARGET} PROPERTIES PICO_TARGET_PRINTF_IMPL "pico_printf_${IMPL}") |
| else() |
| message(FATAL_ERROR "printf implementation must be set on executable not library") |
| endif() |
| endmacro() |
| endif() |