linuxarm32 build help

[harishreddy50552]

Hi all, I'm trying to get a linux arm32 build working and i need a bit of help on that front. I'm following the linuxarm64 as reference point and working on it and i see that it has a crosstool-ng config file.

https://github.com/BtbN/FFmpeg-Builds/blob/master/images/base-linuxarm64/ct-ng-config

1. Wanted to understand what all flags/toolchain was set for linuxarm64. I tried to use the same version of crosstool-ng and was not getting the same config as mentioned in the ct-ng-config file present in the repo.
2. I tried setting the basic config for arm32 and it is unable to find the compiler and hence would appreciate it a lot if someone can share me the config/script file which sets it for linuxarm64.

[BtbN]

You will have to fire up ct-ng menuconfig, and adjust the config for your desired 32 bit arm flavour. Be warned though, that a multitude of dependencies and ffmpeg itself have limited or no arm32 support.

I don't know what you mean by "getting the same config". I made those configs myself for the desired minimum targets.

In the most simple case, you can just switch to non-aarch64 arm in ct-ng, and it should figure the rest out. But you will then run into a multitude of build failures in all the packages, which you will need to deal with individually.

[harishreddy50552]

Thank you.

So, this file ct-ng-config (for linuxarm64) was edited manually post getting config from the menu by adjusting target architecture/operating system and other parameters via UI?

sorry, i was under the impression that it is autogenerated fully :/

[BtbN]

No, you edit it with menuconfig.

[harishreddy50552]

right, can you please share the options/flags which was set for linuxarm64 in the menuconfig.

[BtbN]

The options are stored in the resulting config file: https://github.com/BtbN/FFmpeg-Builds/blob/master/images/base-linuxarm64/ct-ng-config

[harishreddy50552]

Thanks!