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QUESTION
I have embedded system project, which I'm testing with Ceedling (=Unity and Cmock).
In one test case code under test is that simple:
uint32_t zero = eeprom_read_dword((uint32_t*)&non_volatile_zero);
sprintf(output, "%lu", zero);
As embedded system is 8-bit architecture, %lu
must be used in sprintf for formatting 32-bit unsigned int for printing. However, desktop environment (GCC) is used for test build and running of tests (and it's not an option to use embedded build for tests). This causes next warning:
warning: format ‘%lu’ expects argument of type ‘long unsigned int’, but argument 3 has type ‘uint32_t’ {aka ‘unsigned int’} [-Wformat=]
62 sprintf(output, "%lu", zero);
~~^ ~~~~
| |
| uint32_t {aka unsigned int}
long unsigned int
%u
Warning itself is correct in the desktop environment, but false positive from the embedded system point of view.
My question is how to set -Wno-format compiler flag for test build as I have not defined tools-section in project.yml at all as default GCC is used? Or maybe there is even a way to tell ceedling that target system is using 8-bit architecture?
ANSWER
Answered 2021-Oct-06 at 06:28Instead of looking for a way to disable the warning, deal with the issue that the warning is about. That is, use the portable format specifiers from inttypes.h
. These are the most correct to use when printing the stdint.h
types.
#include
sprintf(output, "%"PRIu32, zero);
QUESTION
I feel like this question has been asked a bunch of times, but none of the answers I have found seem to be working for me. I'm extremely new to CMake and C/C++ as I come from the world of Java, and am struggling to understand cmake and how it works.
Anyways, basically I have the folder structure below. This is an esp-idf project, so I don't know if that has anything to do with what I'm running into.
main
-CMakeLists.txt
-main.cpp
-wifi.cpp
Metriful
-CMakeLists.txt
-Metriful_sensor.cpp
-Metriful_sensor.h
-Wifi_functions.h
-Wifi_functions.cpp
CMakeLists.txt
Makefile
Now, all I want to do is include the Metriful subdirectory so I can use the functions provided by the "library". Right now my CMakeLists.txt in the root directory looks like this:
cmake_minimum_required(VERSION 3.5)
include($ENV{IDF_PATH}/tools/cmake/project.cmake)
project(ESP_32_WROOM32_SENSOR_-_Metriful)
include_directories("Metriful")
This doesn't seem to work though as including "Metriful_sensor.h" in my main.cpp still fails:
cmake -G Ninja .. <
-- ccache will be used for faster recompilation
-- Building ESP-IDF components for target esp32
-- Project sdkconfig file C:/Users/User/PlatformIO/ESP32_WROOM32_Sensor_-_Metriful/sdkconfig
-- Could NOT find Perl (missing: PERL_EXECUTABLE)
CMake Warning (dev) at C:/Users/User/esp/esp-idf/components/mbedtls/CMakeLists.txt:114 (target_sources):
Policy CMP0076 is not set: target_sources() command converts relative paths
to absolute. Run "cmake --help-policy CMP0076" for policy details. Use
the cmake_policy command to set the policy and suppress this warning.
A private source from a directory other than that of target "mbedcrypto"
has a relative path.
This warning is for project developers. Use -Wno-dev to suppress it.
-- App "ESP_32_WROOM32_SENSOR_-_Metrifu" version: 637cfde-dirty
-- Adding linker script C:/Users/User/esp/esp-idf/components/esp_rom/esp32/ld/esp32.rom.ld
-- Adding linker script C:/Users/User/esp/esp-idf/components/esp_rom/esp32/ld/esp32.rom.api.ld
-- Adding linker script C:/Users/User/esp/esp-idf/components/esp_rom/esp32/ld/esp32.rom.libgcc.ld
-- Adding linker script C:/Users/User/esp/esp-idf/components/esp_rom/esp32/ld/esp32.rom.newlib-data.ld
-- Adding linker script C:/Users/User/esp/esp-idf/components/esp_rom/esp32/ld/esp32.rom.syscalls.ld
-- Adding linker script C:/Users/User/esp/esp-idf/components/esp_rom/esp32/ld/esp32.rom.newlib-funcs.ld
-- Adding linker script C:/Users/User/esp/esp-idf/components/esp_rom/esp32/ld/esp32.rom.newlib-time.ld
-- Adding linker script C:/Users/User/PlatformIO/ESP32_WROOM32_Sensor_-_Metriful/build/esp-idf/esp32/esp32_out.ld
-- Adding linker script C:/Users/User/esp/esp-idf/components/esp32/ld/esp32.project.ld.in
-- Adding linker script C:/Users/User/esp/esp-idf/components/esp32/ld/esp32.peripherals.ld
-- Components: app_trace app_update asio bootloader bootloader_support bt cbor cmock coap console cxx driver efuse esp-tls esp32 esp_adc_cal esp_common esp_eth esp_event esp_gdbstub esp_hid esp_http_client esp_http_server esp_https_ota esp_https_server esp_hw_support esp_ipc esp_local_ctrl esp_netif esp_pm esp_ringbuf esp_rom esp_serial_slave_link esp_system esp_timer esp_websocket_client esp_wifi espcoredump esptool_py expat fatfs freemodbus freertos hal heap idf_test jsmn json libsodium log lwip main mbedtls mdns mqtt newlib nghttp nvs_flash openssl partition_table perfmon protobuf-c protocomm pthread sdmmc soc spi_flash spiffs tcp_transport tcpip_adapter tinyusb ulp unity vfs wear_levelling wifi_provisioning wpa_supplicant xtensa
-- Component paths: C:/Users/User/esp/esp-idf/components/app_trace C:/Users/User/esp/esp-idf/components/app_update C:/Users/User/esp/esp-idf/components/asio C:/Users/User/esp/esp-idf/components/bootloader C:/Users/User/esp/esp-idf/components/bootloader_support C:/Users/User/esp/esp-idf/components/bt C:/Users/User/esp/esp-idf/components/cbor C:/Users/User/esp/esp-idf/components/cmock C:/Users/User/esp/esp-idf/components/coap C:/Users/User/esp/esp-idf/components/console C:/Users/User/esp/esp-idf/components/cxx C:/Users/User/esp/esp-idf/components/driver C:/Users/User/esp/esp-idf/components/efuse C:/Users/User/esp/esp-idf/components/esp-tls C:/Users/User/esp/esp-idf/components/esp32 C:/Users/User/esp/esp-idf/components/esp_adc_cal C:/Users/User/esp/esp-idf/components/esp_common C:/Users/User/esp/esp-idf/components/esp_eth C:/Users/User/esp/esp-idf/components/esp_event C:/Users/User/esp/esp-idf/components/esp_gdbstub C:/Users/User/esp/esp-idf/components/esp_hid C:/Users/User/esp/esp-idf/components/esp_http_client C:/Users/User/esp/esp-idf/components/esp_http_server C:/Users/User/esp/esp-idf/components/esp_https_ota C:/Users/User/esp/esp-idf/components/esp_https_server C:/Users/User/esp/esp-idf/components/esp_hw_support C:/Users/User/esp/esp-idf/components/esp_ipc C:/Users/User/esp/esp-idf/components/esp_local_ctrl C:/Users/User/esp/esp-idf/components/esp_netif C:/Users/User/esp/esp-idf/components/esp_pm C:/Users/User/esp/esp-idf/components/esp_ringbuf C:/Users/User/esp/esp-idf/components/esp_rom C:/Users/User/esp/esp-idf/components/esp_serial_slave_link C:/Users/User/esp/esp-idf/components/esp_system C:/Users/User/esp/esp-idf/components/esp_timer C:/Users/User/esp/esp-idf/components/esp_websocket_client C:/Users/User/esp/esp-idf/components/esp_wifi C:/Users/User/esp/esp-idf/components/espcoredump C:/Users/User/esp/esp-idf/components/esptool_py C:/Users/User/esp/esp-idf/components/expat C:/Users/User/esp/esp-idf/components/fatfs C:/Users/User/esp/esp-idf/components/freemodbus C:/Users/User/esp/esp-idf/components/freertos C:/Users/User/esp/esp-idf/components/hal C:/Users/User/esp/esp-idf/components/heap C:/Users/User/esp/esp-idf/components/idf_test C:/Users/User/esp/esp-idf/components/jsmn C:/Users/User/esp/esp-idf/components/json C:/Users/User/esp/esp-idf/components/libsodium C:/Users/User/esp/esp-idf/components/log C:/Users/User/esp/esp-idf/components/lwip C:/Users/User/PlatformIO/ESP32_WROOM32_Sensor_-_Metriful/main C:/Users/User/esp/esp-idf/components/mbedtls C:/Users/User/esp/esp-idf/components/mdns C:/Users/User/esp/esp-idf/components/mqtt C:/Users/User/esp/esp-idf/components/newlib C:/Users/User/esp/esp-idf/components/nghttp C:/Users/User/esp/esp-idf/components/nvs_flash C:/Users/User/esp/esp-idf/components/openssl C:/Users/User/esp/esp-idf/components/partition_table C:/Users/User/esp/esp-idf/components/perfmon C:/Users/User/esp/esp-idf/components/protobuf-c
C:/Users/User/esp/esp-idf/components/protocomm C:/Users/User/esp/esp-idf/components/pthread C:/Users/User/esp/esp-idf/components/sdmmc C:/Users/User/esp/esp-idf/components/soc C:/Users/User/esp/esp-idf/components/spi_flash C:/Users/User/esp/esp-idf/components/spiffs C:/Users/User/esp/esp-idf/components/tcp_transport C:/Users/User/esp/esp-idf/components/tcpip_adapter C:/Users/User/esp/esp-idf/components/tinyusb C:/Users/User/esp/esp-idf/components/ulp C:/Users/User/esp/esp-idf/components/unity C:/Users/User/esp/esp-idf/components/vfs C:/Users/User/esp/esp-idf/components/wear_levelling C:/Users/User/esp/esp-idf/components/wifi_provisioning C:/Users/User/esp/esp-idf/components/wpa_supplicant C:/Users/User/esp/esp-idf/components/xtensa
-- Configuring done
-- Generating done
-- Build files have been written to: C:/Users/User/PlatformIO/ESP32_WROOM32_Sensor_-_Metriful/build
Terminal will be reused by tasks, press any key to close it.
> Executing task: cmake --build . <
[1/9] Performing build step for 'bootloader'
ninja: no work to do.
[2/7] Building CXX object esp-idf/main/CMakeFiles/__idf_main.dir/main.cpp.obj
FAILED: esp-idf/main/CMakeFiles/__idf_main.dir/main.cpp.obj
ccache C:\Users\User\.espressif\tools\xtensa-esp32-elf\esp-2020r3-8.4.0\xtensa-esp32-elf\bin\xtensa-esp32-elf-g++.exe -DHAVE_CONFIG_H -DMBEDTLS_CONFIG_FILE=\"mbedtls/esp_config.h\" -DUNITY_INCLUDE_CONFIG_H -DWITH_POSIX -Iconfig -I../main -IC:/Users/User/esp/esp-idf/components/newlib/platform_include -IC:/Users/User/esp/esp-idf/components/freertos/include -IC:/Users/User/esp/esp-idf/components/freertos/port/xtensa/include -IC:/Users/User/esp/esp-idf/components/esp_hw_support/include -IC:/Users/User/esp/esp-idf/components/esp_hw_support/port/esp32/. -IC:/Users/User/esp/esp-idf/components/heap/include -IC:/Users/User/esp/esp-idf/components/log/include -IC:/Users/User/esp/esp-idf/components/lwip/include/apps -IC:/Users/User/esp/esp-idf/components/lwip/include/apps/sntp -IC:/Users/User/esp/esp-idf/components/lwip/lwip/src/include -IC:/Users/User/esp/esp-idf/components/lwip/port/esp32/include -IC:/Users/User/esp/esp-idf/components/lwip/port/esp32/include/arch -IC:/Users/User/esp/esp-idf/components/soc/include -IC:/Users/User/esp/esp-idf/components/soc/esp32/. -IC:/Users/User/esp/esp-idf/components/soc/esp32/include -IC:/Users/User/esp/esp-idf/components/hal/esp32/include -IC:/Users/User/esp/esp-idf/components/hal/include -IC:/Users/User/esp/esp-idf/components/esp_rom/include -IC:/Users/User/esp/esp-idf/components/esp_rom/esp32 -IC:/Users/User/esp/esp-idf/components/esp_common/include -IC:/Users/User/esp/esp-idf/components/esp_system/include -IC:/Users/User/esp/esp-idf/components/esp32/include -IC:/Users/User/esp/esp-idf/components/driver/include -IC:/Users/User/esp/esp-idf/components/driver/esp32/include -IC:/Users/User/esp/esp-idf/components/esp_ringbuf/include -IC:/Users/User/esp/esp-idf/components/efuse/include -IC:/Users/User/esp/esp-idf/components/efuse/esp32/include -IC:/Users/User/esp/esp-idf/components/xtensa/include -IC:/Users/User/esp/esp-idf/components/xtensa/esp32/include -IC:/Users/User/esp/esp-idf/components/espcoredump/include -IC:/Users/User/esp/esp-idf/components/esp_timer/include -IC:/Users/User/esp/esp-idf/components/esp_ipc/include -IC:/Users/User/esp/esp-idf/components/esp_pm/include -IC:/Users/User/esp/esp-idf/components/vfs/include -IC:/Users/User/esp/esp-idf/components/esp_wifi/include -IC:/Users/User/esp/esp-idf/components/esp_wifi/esp32/include -IC:/Users/User/esp/esp-idf/components/esp_event/include -IC:/Users/User/esp/esp-idf/components/esp_netif/include -IC:/Users/User/esp/esp-idf/components/esp_eth/include -IC:/Users/User/esp/esp-idf/components/tcpip_adapter/include -IC:/Users/User/esp/esp-idf/components/app_trace/include -IC:/Users/User/esp/esp-idf/components/mbedtls/port/include -IC:/Users/User/esp/esp-idf/components/mbedtls/mbedtls/include -IC:/Users/User/esp/esp-idf/components/mbedtls/esp_crt_bundle/include -IC:/Users/User/esp/esp-idf/components/app_update/include -IC:/Users/User/esp/esp-idf/components/spi_flash/include -IC:/Users/User/esp/esp-idf/components/bootloader_support/include -IC:/Users/User/esp/esp-idf/components/nvs_flash/include -IC:/Users/User/esp/esp-idf/components/pthread/include -IC:/Users/User/esp/esp-idf/components/esp_gdbstub/include -IC:/Users/User/esp/esp-idf/components/esp_gdbstub/xtensa -IC:/Users/User/esp/esp-idf/components/esp_gdbstub/esp32 -IC:/Users/User/esp/esp-idf/components/wpa_supplicant/include -IC:/Users/User/esp/esp-idf/components/wpa_supplicant/port/include -IC:/Users/User/esp/esp-idf/components/wpa_supplicant/include/esp_supplicant -IC:/Users/User/esp/esp-idf/components/perfmon/include -IC:/Users/User/esp/esp-idf/components/asio/asio/asio/include -IC:/Users/User/esp/esp-idf/components/asio/port/include -IC:/Users/User/esp/esp-idf/components/cbor/port/include -IC:/Users/User/esp/esp-idf/components/unity/include -IC:/Users/User/esp/esp-idf/components/unity/unity/src -IC:/Users/User/esp/esp-idf/components/cmock/CMock/src -IC:/Users/User/esp/esp-idf/components/coap/port/include -IC:/Users/User/esp/esp-idf/components/coap/port/include/coap -IC:/Users/User/esp/esp-idf/components/coap/libcoap/include -IC:/Users/User/esp/esp-idf/components/coap/libcoap/include/coap2 -IC:/Users/User/esp/esp-idf/components/console -IC:/Users/User/esp/esp-idf/components/nghttp/port/include -IC:/Users/User/esp/esp-idf/components/nghttp/nghttp2/lib/includes -IC:/Users/User/esp/esp-idf/components/esp-tls -IC:/Users/User/esp/esp-idf/components/esp-tls/esp-tls-crypto -IC:/Users/User/esp/esp-idf/components/esp_adc_cal/include -IC:/Users/User/esp/esp-idf/components/esp_hid/include -IC:/Users/User/esp/esp-idf/components/tcp_transport/include -IC:/Users/User/esp/esp-idf/components/esp_http_client/include -IC:/Users/User/esp/esp-idf/components/esp_http_server/include -IC:/Users/User/esp/esp-idf/components/esp_https_ota/include -IC:/Users/User/esp/esp-idf/components/protobuf-c/protobuf-c -IC:/Users/User/esp/esp-idf/components/protocomm/include/common -IC:/Users/User/esp/esp-idf/components/protocomm/include/security -IC:/Users/User/esp/esp-idf/components/protocomm/include/transports -IC:/Users/User/esp/esp-idf/components/mdns/include -IC:/Users/User/esp/esp-idf/components/esp_local_ctrl/include -IC:/Users/User/esp/esp-idf/components/sdmmc/include -IC:/Users/User/esp/esp-idf/components/esp_serial_slave_link/include -IC:/Users/User/esp/esp-idf/components/esp_websocket_client/include -IC:/Users/User/esp/esp-idf/components/expat/expat/expat/lib -IC:/Users/User/esp/esp-idf/components/expat/port/include -IC:/Users/User/esp/esp-idf/components/wear_levelling/include -IC:/Users/User/esp/esp-idf/components/fatfs/diskio -IC:/Users/User/esp/esp-idf/components/fatfs/vfs -IC:/Users/User/esp/esp-idf/components/fatfs/src -IC:/Users/User/esp/esp-idf/components/freemodbus/common/include -IC:/Users/User/esp/esp-idf/components/idf_test/include -IC:/Users/User/esp/esp-idf/components/idf_test/include/esp32 -IC:/Users/User/esp/esp-idf/components/jsmn/include -IC:/Users/User/esp/esp-idf/components/json/cJSON -IC:/Users/User/esp/esp-idf/components/libsodium/libsodium/src/libsodium/include -IC:/Users/User/esp/esp-idf/components/libsodium/port_include -IC:/Users/User/esp/esp-idf/components/mqtt/esp-mqtt/include -IC:/Users/User/esp/esp-idf/components/openssl/include -IC:/Users/User/esp/esp-idf/components/spiffs/include -IC:/Users/User/esp/esp-idf/components/ulp/include -IC:/Users/User/esp/esp-idf/components/wifi_provisioning/include -mlongcalls -Wno-frame-address -ffunction-sections -fdata-sections -Wall -Werror=all -Wno-error=unused-function -Wno-error=unused-variable -Wno-error=deprecated-declarations -Wextra -Wno-unused-parameter -Wno-sign-compare -ggdb -Og -fstrict-volatile-bitfields -Wno-error=unused-but-set-variable -std=gnu++11
-fno-exceptions -fno-rtti -D_GNU_SOURCE -DIDF_VER=\"v4.3-dirty\" -DESP_PLATFORM -MD -MT esp-idf/main/CMakeFiles/__idf_main.dir/main.cpp.obj -MF esp-idf\main\CMakeFiles\__idf_main.dir\main.cpp.obj.d -o esp-idf/main/CMakeFiles/__idf_main.dir/main.cpp.obj -c ../main/main.cpp
../main/main.cpp:3:10: fatal error: Metriful_sensor.h: No such file or directory
#include "Metriful_sensor.h"
^~~~~~~~~~~~~~~~~~~
compilation terminated.
ninja: build stopped: subcommand failed.
ANSWER
Answered 2021-Jul-09 at 13:46The ESP-IDF build system is built on top of CMake. This means you can use all the standard features of CMake in your files. However, the the ESP-IDF system predefines many functions, and makes many assumptions about the layout of your project, supposedly to make things "easier". Instead of reading CMake documentation, start by reading and understanding the ESP-IDF build system documentation:
https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/build-system.html
It looks to me like there is a particular layout expected for subcomponents, including the format of the CMakeLists.txt
file. Specifically, move Metriful
under a new directory called components
, or add Metriful
to EXTRA_COMPONENT_DIRS
near the top of your root CMakeLists.txt
If Metriful is not written as an esp-idf component, this may not work. However, the document also describes how to link to "pure CMake" components, which will look something like this (at the end of your root CMakeLists.txt
).
# Create and import the library targets
add_subdirectory(Metriful)
# Publicly link `foo` to `main` component
target_link_libraries(main PUBLIC metriful)
The metriful
argument in target_link_libraries must be the name of the library created in the subdirectory via add_library()
.
QUESTION
I'm working on unit tests for a c embedded project with Bazel, first I tested the code with Ceedling (Unity and cmock) and It worked. And now, I'm trying to merge to Bazel but I did not find any document about using ceedling with Bazel.
ANSWER
Answered 2021-Jun-24 at 16:03I have made a quick research and it looks like there is no ceedling support for Bazel. You could write some custom rules for stuff you have mentioned, but I guess, that rewriting to Bazel rules will be much easier and maintainable
QUESTION
//myfuncs.h
void func1(void);
void func2(void;
I'm doing unit testing. Using CMock with ceedling, is there any way to mock func1(), but run func2() as it was originally written?
ANSWER
Answered 2020-Apr-02 at 06:01To my knowledge, you can't. You must split the header file into two and generate mocks for once of them.
There are unit test frameworks that can mock one or more functions in a header file, Nala (which I'm maintaining) for example. But I guess you want to use CMock with Ceedling, so it's not really an option.
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