esp-idf/components/freertos/CMakeLists.txt

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CMake

# FreeRTOS Component Architecture
#
# The FreeRTOS component mainly contains
# - Different FreeRTOS kernel implementations (namely IDF FreeRTOS and Amazon SMP FreeRTOS).
# - Different ports of each architecture for each kernel implementaiton.
# - IDF additions to FreeRTOS (e.g., features and API) to augment FreeRTOS
#
# The FreeRTOS component organizes its files as follows
#
# - `./config`
# - Contains all "FreeRTOSConfig.h" files required by FreeRTOS
# - `./esp_additions`
# - Additional features added by ESP-IDF to augment FreeRTOS, and not part of the original kernel
# - `./FreeRTOS-Kernel-...`
# - Different FreeRTOS kernel implementations. Each implementaiton is kept in its own directory.
# - Ports for the implementation are kept in `FreeRTOS-Kernel-.../portable/xxx/`\
# - `./test_apps`
# - Contains all unit tests/test apps for the FreeRTOS component.
# - `./`
# - Files common across all kernel implementations and all ports
# Bootloader builds only needs FreeRTOS for config, not for anything else
if(BOOTLOADER_BUILD)
idf_component_register()
return()
endif()
# Set some convenience variables
idf_build_get_property(target IDF_TARGET)
if(CONFIG_FREERTOS_SMP)
set(kernel_impl "FreeRTOS-Kernel-SMP")
else()
set(kernel_impl "FreeRTOS-Kernel")
endif()
if(CONFIG_IDF_TARGET_ARCH_XTENSA)
set(arch "xtensa")
elseif(CONFIG_IDF_TARGET_ARCH_RISCV)
set(arch "riscv")
elseif(${target} STREQUAL "linux")
set(arch "linux")
endif()
set(srcs "")
set(include_dirs "")
set(private_include_dirs "")
set(private_requirements "")
set(ldfragments "")
# ---------------------------------------------------- Set Sources -----------------------------------------------------
# Add common source files
list(APPEND srcs
"heap_idf.c")
if((arch STREQUAL "xtensa") OR (arch STREQUAL "riscv"))
list(APPEND srcs
"app_startup.c"
"port_common.c"
"port_systick.c")
endif()
# Add FreeRTOS Kernel source files
list(APPEND srcs
"${kernel_impl}/list.c"
"${kernel_impl}/queue.c"
"${kernel_impl}/tasks.c"
"${kernel_impl}/timers.c"
"${kernel_impl}/event_groups.c"
"${kernel_impl}/stream_buffer.c")
# Add port source files
list(APPEND srcs
"${kernel_impl}/portable/${arch}/port.c")
if(arch STREQUAL "linux")
list(APPEND srcs
"${kernel_impl}/portable/${arch}/utils/wait_for_event.c")
if(kernel_impl STREQUAL "FreeRTOS-Kernel")
list(APPEND srcs
"${kernel_impl}/portable/${arch}/port_idf.c")
endif()
else()
list(APPEND srcs
"${kernel_impl}/portable/${arch}/portasm.S")
endif()
if(arch STREQUAL "xtensa")
list(APPEND srcs
"${kernel_impl}/portable/${arch}/xtensa_init.c"
"${kernel_impl}/portable/${arch}/xtensa_overlay_os_hook.c")
endif()
# Add ESP-additions source files
list(APPEND srcs
"esp_additions/freertos_compatibility.c"
"esp_additions/idf_additions.c")
if(arch STREQUAL "linux")
# Check if we need to address the FreeRTOS EINTR coexistence with linux system calls if we're building without
# lwIP enabled, we need to use linux system select which will receive EINTR event on every FreeRTOS interrupt, we
# workaround this problem by wrapping select() to bypass and silence the EINTR events
set(BYPASS_EINTR_ISSUE 0)
if(NOT CONFIG_LWIP_ENABLE)
set(BYPASS_EINTR_ISSUE 1)
list(APPEND srcs "esp_additions/FreeRTOSSimulator_wrappers.c")
endif()
endif()
# ------------------------------------------------ Set Public Includes -------------------------------------------------
# Add common public include directories
list(APPEND include_dirs
"config/include" # For `#include "freertos/FreeRTOSConfig.h"`
"config/include/freertos" # For `#include "FreeRTOSConfig.h"`
"config/${arch}/include") # For `#include "freertos/FreeRTOSConfig_arch.h"`
# Add FreeRTOS Kernel public include directories
list(APPEND include_dirs
"${kernel_impl}/include") # FreeRTOS headers via `#include "freertos/xxx.h"`
# Add port public include directories
list(APPEND include_dirs
"${kernel_impl}/portable/${arch}/include" # For port headers via `#include "freertos/...h"`
"${kernel_impl}/portable/${arch}/include/freertos") # For port headers via `#include "...h"`
# Add ESP-additions public include directories
list(APPEND include_dirs
"esp_additions/include") # For ESP-addition headers via
# - `#include "freertos/...h"`
# - `#include "esp_private/...h"`
# ----------------------------------------------- Set Private Includes -------------------------------------------------
# Add common private include directories
if((arch STREQUAL "xtensa") OR (arch STREQUAL "riscv"))
list(APPEND private_include_dirs
".") # For `#include "port_systick.h"
endif()
# Add FreeRTOS Kernel private include directories
list(APPEND private_include_dirs
"${kernel_impl}/include/freertos") # FreeRTOS headers via `#include "xxx.h"`
# Add port private include directories
if(arch STREQUAL "linux")
list(APPEND private_include_dirs
"${kernel_impl}/portable/${arch}/") # Linux port `#include "utils/wait_for_event.h"`
endif()
# Add ESP-additions private include directories
list(APPEND private_include_dirs
"esp_additions") # For `include "freertos_tasks_c_additions.h"`
# ------------------------------------------------------- Misc ---------------------------------------------------------
# Add linker fragments
list(APPEND ldfragments
"linker_common.lf")
if((arch STREQUAL "xtensa") OR (arch STREQUAL "riscv"))
if(kernel_impl STREQUAL "FreeRTOS-Kernel-SMP")
list(APPEND ldfragments
"linker_smp.lf")
else()
list(APPEND ldfragments
"linker.lf")
endif()
endif()
# ------------------------------------------------ Register Component --------------------------------------------------
idf_component_register(SRCS ${srcs}
INCLUDE_DIRS ${include_dirs}
PRIV_INCLUDE_DIRS ${private_include_dirs}
LDFRAGMENTS ${ldfragments}
PRIV_REQUIRES ${private_requirements})
if(arch STREQUAL "linux")
target_compile_definitions(${COMPONENT_LIB} PUBLIC "projCOVERAGE_TEST=0")
target_link_libraries(${COMPONENT_LIB} PUBLIC pthread)
if(BYPASS_EINTR_ISSUE)
target_link_libraries(${COMPONENT_LIB} PRIVATE dl)
endif()
# Disable strict prototype warnings in upstream code
# (struct event * event_create() is missing 'void')
set_source_files_properties(
"${kernel_impl}/portable/${arch}/utils/wait_for_event.c"
PROPERTIES COMPILE_OPTIONS
"-Wno-strict-prototypes"
)
else()
idf_component_get_property(COMPONENT_DIR freertos COMPONENT_DIR)
idf_component_set_property(freertos ORIG_INCLUDE_PATH "${COMPONENT_DIR}/${kernel_impl}/include/freertos/")
if(CONFIG_FREERTOS_DEBUG_OCDAWARE)
target_link_libraries(${COMPONENT_LIB} INTERFACE "-Wl,--undefined=FreeRTOS_openocd_params")
endif()
set_source_files_properties(
tasks.c
event_groups.c
timers.c
queue.c
stream_buffer.c
PROPERTIES COMPILE_DEFINITIONS
_ESP_FREERTOS_INTERNAL
)
# The freertos component provides the `start_app` and `start_app_other_cores`
# if it is included in the build. It then calls `app_main`
# from the main task created, which must be provided by the user.
# Like for `start_app` and `start_app_other_cores`,
# we can't establish dependency on what we don't yet know, so we force the
# linker to not drop this symbol.
target_link_libraries(${COMPONENT_LIB} INTERFACE "-u app_main")
if(CONFIG_APPTRACE_SV_ENABLE)
# FreeRTOS headers have a dependency on app_trace when SystemView tracing is enabled
idf_component_optional_requires(PUBLIC app_trace)
elseif(CONFIG_APPTRACE_ENABLE)
# [refactor-todo]: app_startup.c esp_startup_start_app_other_cores() has a dependency on esp_apptrace_init()
# (called on CPU1). This should be resolved when link-time registration of startup functions is added.
idf_component_optional_requires(PRIVATE app_trace)
endif()
if(CONFIG_ESP_SYSTEM_GDBSTUB_RUNTIME)
# [refactor-todo]: app_startup.c esp_startup_start_app_other_cores() calls esp_gdbstub_init() (called on CPU0).
# This should be resolved when link-time registration of startup functions is added.
idf_component_optional_requires(PRIVATE esp_gdbstub)
endif()
if(CONFIG_FREERTOS_RUN_TIME_STATS_USING_ESP_TIMER)
# [refactor-todo]: esp_timer is required by FreeRTOS when we use esp_timer_get_time() to do profiling
# Introduce a port wrapper function to avoid including esp_timer.h into the public header
idf_component_optional_requires(PUBLIC esp_timer)
endif()
if(CONFIG_SPIRAM)
idf_component_optional_requires(PRIVATE esp_psram)
endif()
if(CONFIG_PM_TRACE)
# esp_pm is required by port_systick.c for tracing
idf_component_optional_requires(PRIVATE esp_pm)
endif()
endif()