where is the library libgpiod located in the STOpenLinux SDK?

vbuon.1 · ‎2021-08-23

hi,

i'm trying to compile a program in STM32CubeIDE that i wrote that cotnains calls located in libgpiod. but i'm getting linker errors as shown below. do i need to create the library myself or do i need to set a path in the CubeIDE's environment?

i selected the option to install STOpenLinux to be embedded inside of CubeIDE.

Invoking: MPU G++ Linker

arm-ostl-linux-gnueabi-g++ -mthumb -mfpu=neon-vfpv4 -mfloat-abi=hard -mcpu=cortex-a7 --sysroot=/home/vbuonassisi@ostendo.local/.eclipse/com.st.stm32cube.ide.mcu.rcp.product_1.6.0_1935172119_linux_gtk_x86_64/plugins/com.st.openstlinux.sdk.openstlinux_5.4_dunfell_mp1_20_11_12_5.4.0.202011171729/tools/sysroots/cortexa7t2hf-neon-vfpv4-ostl-linux-gnueabi -o "NearEGSoftware" ./gpio_test.o ./main.o -Wl,-Map="NearEGSoftware.map" -Wl,--gc-sections

/home/vbuonassisi@ostendo.local/.eclipse/com.st.stm32cube.ide.mcu.rcp.product_1.6.0_1935172119_linux_gtk_x86_64/plugins/com.st.openstlinux.sdk.openstlinux_5.4_dunfell_mp1_20_11_12_5.4.0.202011171729/tools/sysroots/x86_64-ostl_sdk-linux/usr/libexec/arm-ostl-linux-gnueabi/gcc/arm-ostl-linux-gnueabi/9.3.0/real-ld: ./gpio_test.o: in function `gpio_test()':

/home/vbuonassisi@ostendo.local/Documents/STM32MP15-Ecosystem-v3.0.0/Developer-Package/workspace/NearEGSoftware/Debug/../gpio_test.cpp:20: undefined reference to `gpiod_chip_open_by_name'

/home/vbuonassisi@ostendo.local/.eclipse/com.st.stm32cube.ide.mcu.rcp.product_1.6.0_1935172119_linux_gtk_x86_64/plugins/com.st.openstlinux.sdk.openstlinux_5.4_dunfell_mp1_20_11_12_5.4.0.202011171729/tools/sysroots/x86_64-ostl_sdk-linux/usr/libexec/arm-ostl-linux-gnueabi/gcc/arm-ostl-linux-gnueabi/9.3.0/real-ld: /home/vbuonassisi@ostendo.local/Documents/STM32MP15-Ecosystem-v3.0.0/Developer-Package/workspace/NearEGSoftware/Debug/../gpio_test.cpp:29: undefined reference to `gpiod_chip_get_line'

/home/vbuonassisi@ostendo.local/.eclipse/com.st.stm32cube.ide.mcu.rcp.product_1.6.0_1935172119_linux_gtk_x86_64/plugins/com.st.openstlinux.sdk.openstlinux_5.4_dunfell_mp1_20_11_12_5.4.0.202011171729/tools/sysroots/x86_64-ostl_sdk-linux/usr/libexec/arm-ostl-linux-gnueabi/gcc/arm-ostl-linux-gnueabi/9.3.0/real-ld: /home/vbuonassisi@ostendo.local/Documents/STM32MP15-Ecosystem-v3.0.0/Developer-Package/workspace/NearEGSoftware/Debug/../gpio_test.cpp:40: undefined reference to `gpiod_line_request_output'

/home/vbuonassisi@ostendo.local/.eclipse/com.st.stm32cube.ide.mcu.rcp.product_1.6.0_1935172119_linux_gtk_x86_64/plugins/com.st.openstlinux.sdk.openstlinux_5.4_dunfell_mp1_20_11_12_5.4.0.202011171729/tools/sysroots/x86_64-ostl_sdk-linux/usr/libexec/arm-ostl-linux-gnueabi/gcc/arm-ostl-linux-gnueabi/9.3.0/real-ld: /home/vbuonassisi@ostendo.local/Documents/STM32MP15-Ecosystem-v3.0.0/Developer-Package/workspace/NearEGSoftware/Debug/../gpio_test.cpp:34: undefined reference to `gpiod_chip_close'

/home/vbuonassisi@ostendo.local/.eclipse/com.st.stm32cube.ide.mcu.rcp.product_1.6.0_1935172119_linux_gtk_x86_64/plugins/com.st.openstlinux.sdk.openstlinux_5.4_dunfell_mp1_20_11_12_5.4.0.202011171729/tools/sysroots/x86_64-ostl_sdk-linux/usr/libexec/arm-ostl-linux-gnueabi/gcc/arm-ostl-linux-gnueabi/9.3.0/real-ld: /home/vbuonassisi@ostendo.local/Documents/STM32MP15-Ecosystem-v3.0.0/Developer-Package/workspace/NearEGSoftware/Debug/../gpio_test.cpp:45: undefined reference to `gpiod_chip_close'

/home/vbuonassisi@ostendo.local/.eclipse/com.st.stm32cube.ide.mcu.rcp.product_1.6.0_1935172119_linux_gtk_x86_64/plugins/com.st.openstlinux.sdk.openstlinux_5.4_dunfell_mp1_20_11_12_5.4.0.202011171729/tools/sysroots/x86_64-ostl_sdk-linux/usr/libexec/arm-ostl-linux-gnueabi/gcc/arm-ostl-linux-gnueabi/9.3.0/real-ld: /home/vbuonassisi@ostendo.local/Documents/STM32MP15-Ecosystem-v3.0.0/Developer-Package/workspace/NearEGSoftware/Debug/../gpio_test.cpp:53: undefined reference to `gpiod_line_set_value'

/home/vbuonassisi@ostendo.local/.eclipse/com.st.stm32cube.ide.mcu.rcp.product_1.6.0_1935172119_linux_gtk_x86_64/plugins/com.st.openstlinux.sdk.openstlinux_5.4_dunfell_mp1_20_11_12_5.4.0.202011171729/tools/sysroots/x86_64-ostl_sdk-linux/usr/libexec/arm-ostl-linux-gnueabi/gcc/arm-ostl-linux-gnueabi/9.3.0/real-ld: /home/vbuonassisi@ostendo.local/Documents/STM32MP15-Ecosystem-v3.0.0/Developer-Package/workspace/NearEGSoftware/Debug/../gpio_test.cpp:58: undefined reference to `gpiod_chip_close'

collect2: error: ld returned 1 exit status

make: *** [makefile:52: NearEGSoftware] Error 1

"make all" terminated with exit code 2. Build might be incomplete.

thanks,

vince

vbuon.1 · ‎2021-08-31

hi olivier,

i did follow the instructions in the link you sent me to set up my CubeIDE as well as an STM youtube video that i found . non of that helped. what did help is adding the library name to C/C++ Build->Settings->MPU G++ Linker->Libraries in the configuration for the project. i did not know that i needed to manually add the library that i use to the project configuration.

thanks,

vince

View solution in original post

Olivier GALLIEN · ‎2021-08-25

Hi @vbuon.1 ,

Did you follow wiki instruction to install SDK and create your user space project under CubeIDE ?

See

https://wiki.st.com/stm32mpu/wiki/How_to_debug_a_user_space_application_with_STM32CubeIDE

Olivier

Olivier GALLIEN
In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.

vbuon.1 · ‎2021-08-31

hi olivier,

i did follow the instructions in the link you sent me to set up my CubeIDE as well as an STM youtube video that i found . non of that helped. what did help is adding the library name to C/C++ Build->Settings->MPU G++ Linker->Libraries in the configuration for the project. i did not know that i needed to manually add the library that i use to the project configuration.

thanks,

vince