I am working on coming up with a non-trivial sampl...

# kotlin-native

[Jared Woolston]

I am working on coming up with a non-trivial sample for kotlin on the STM32F4 Discovery board with Zephyr and have encountered a rather interesting issue. Specifically, this code generates a Usage fault in the ARM core of type No Co-processor instructions on line 8 (I presume line 8 because the message on line 7 shows in the console but line 8 does not). I am trying to determine why the build would even generate co-processor instructions in the first place for something like this. As a first pass i modified the konan plugin options to have the additional option -mfloat-abi=soft to ensure that any hardware FPU instructions would not be generated but this did not change the outcome. I am trying to track down what the reason for this on such a simple set of code and would be appreciative of anyone who can give me some more insight into the where I can look in konan or its various configuration/native files to perhaps gain more insight.

Untitled.kt

[olonho]

you can control native codegen parameters via konan.properties file

[Jared Woolston]

Thanks, I've been looking there and fiddling with board specific flags but have not had much success yet.

[krotki]

You could also just turn on fpu during your init. Of course only in case you just want to make it work. 😛

[XQDD]

Could you where are you put the option -mfloat-abi=soft