undefined reference to sd_get_num' and undefined reference to spi_get_by_num'

[NBalciunas]

Can't compile code.

Error message:

/usr/lib/gcc/arm-none-eabi/7.3.1/../../../arm-none-eabi/bin/ld: CMakeFiles/Test.dir/lib/no-OS-FatFS-SD-SPI-RPi-Pico/FatFs_SPI/sd_driver/sd_card.c.obj: in function `sd_init_driver':
sd_card.c:(.text.sd_init_driver+0x42): undefined reference to `sd_get_num'
/usr/lib/gcc/arm-none-eabi/7.3.1/../../../arm-none-eabi/bin/ld: sd_card.c:(.text.sd_init_driver+0x4c): undefined reference to `sd_get_by_num'
/usr/lib/gcc/arm-none-eabi/7.3.1/../../../arm-none-eabi/bin/ld: sd_card.c:(.text.sd_init_driver+0x88): undefined reference to `spi_get_by_num'
/usr/lib/gcc/arm-none-eabi/7.3.1/../../../arm-none-eabi/bin/ld: sd_card.c:(.text.sd_init_driver+0x96): undefined reference to `spi_get_num'
/usr/lib/gcc/arm-none-eabi/7.3.1/../../../arm-none-eabi/bin/ld: CMakeFiles/Test.dir/lib/no-OS-FatFS-SD-SPI-RPi-Pico/FatFs_SPI/src/glue.c.obj: in function `disk_status':
glue.c:(.text.disk_status+0x2): undefined reference to `sd_get_by_num'
/usr/lib/gcc/arm-none-eabi/7.3.1/../../../arm-none-eabi/bin/ld: CMakeFiles/Test.dir/lib/no-OS-FatFS-SD-SPI-RPi-Pico/FatFs_SPI/src/glue.c.obj: in function `disk_initialize':
glue.c:(.text.disk_initialize+0x2): undefined reference to `sd_get_by_num'
/usr/lib/gcc/arm-none-eabi/7.3.1/../../../arm-none-eabi/bin/ld: CMakeFiles/Test.dir/lib/no-OS-FatFS-SD-SPI-RPi-Pico/FatFs_SPI/src/glue.c.obj: in function `disk_read':
glue.c:(.text.disk_read+0xa): undefined reference to `sd_get_by_num'
/usr/lib/gcc/arm-none-eabi/7.3.1/../../../arm-none-eabi/bin/ld: CMakeFiles/Test.dir/lib/no-OS-FatFS-SD-SPI-RPi-Pico/FatFs_SPI/src/glue.c.obj: in function `disk_write':
glue.c:(.text.disk_write+0xa): undefined reference to `sd_get_by_num'
/usr/lib/gcc/arm-none-eabi/7.3.1/../../../arm-none-eabi/bin/ld: CMakeFiles/Test.dir/lib/no-OS-FatFS-SD-SPI-RPi-Pico/FatFs_SPI/src/glue.c.obj: in function `disk_ioctl':
glue.c:(.text.disk_ioctl+0x6): undefined reference to `sd_get_by_num'
collect2: error: ld returned 1 exit status
make[3]: *** [CMakeFiles/Test.dir/build.make:912: Test.elf] Error 1
make[2]: *** [CMakeFiles/Makefile2:1580: CMakeFiles/Test.dir/all] Error 2
make[1]: *** [CMakeFiles/Makefile2:1587: CMakeFiles/Test.dir/rule] Error 2
make: *** [Makefile:131: Test] Error 2

[Python380]

related to #25...

[carlk3]

Which application were you building? E.g., example or simple_example? In any case, there should be a customized file that provides those functions. For example or simple_example it's hw_config.c. For dynamic_config_example it's hw_config.cpp. The file name is arbitrary (except that it must agree with the CMakeLists.txt), but something needs to provide those functions.

Note that there is no CMakeLists.txt to build anything in the top level no-OS-FatFS-SD-SPI-RPi-Pico directory.

I have been using some new hardware and it's hard to keep the various hw_configs straight (let alone tested). Don't count on the hw_config in the examples on GitHub to be correct for your hardware (even if it once was). Once you have customized it, keep a copy somewhere, give it a new name, or something like that.

[carlk3]

One more thing: Pull Request #12 Dynamic configuration (in response to Issue #11 Configurable GPIO pins) moved the hw_config.c file out of the library itself and into the examples, so if you are migrating from a version prior to commit 2260521d602b8427fb779275cf51af6702312ac2 (Sep 5, 2021), you will need to grab a copy from one of the examples (and customize it if necessary), or write some other implementation (e.g., dynamic_config_example/hw_config.cpp), and put it somewhere persistent.