ESP8266 Community Forum

Ok, got quite far, but now it bails on building newlib and now I know why: in the currently used version of ct-ng, newlib v2.0.0 is available which has xtensa support. This version is now dropped, so there is no more newlib support for xtensa. I will have to check if jcmvbkbc has patches for this in the meantime, or maybe someone else, or I will be stuck here. I have no clue what's required to have newlib building on xtensa, I'd say actually nothing special, but who knows...

Not yet completely finished, but it looks like the build process now proceeds without issues.

This is what I did. I maintain a fork of the crosstool-NG git(hub) repo, which has the relevant changes from Max Filipov applied (cherry picked) on top. Somewhere in the last year the original crosstool-ng had newlib 2.0.0 removed (as being obsolete). I simply took the relevant commit (nice and clean) and reverted it in my fork. Now newlib 2.0.0, with patches from Max, is available again.

Update: the build now stops with an error, though:

Let's me look into this. Maybe we can completely disable this libgcov thing.

The libgcov thing I was able to fix (typedef unsigned long long int intptr_t), but now I have an error I really don't know how to fix:



There is really nothing wrong with this code:

I used the espressif/crosstool-NG repo revved to the latest, which is on the crosstool esp-1.25.x branch, and then I added back the esp8266 sample from the last time it was available, and compared it with the existing ones to update.

When I tried to build this I got an error in zlib, which was mentioned in an issue - it needs to be updated to latest, which is 1.2.13, so I updated the package info for that directly from the main crosstool repo . Then I built

Here are the sample files - these need to be put under the directory xtensa-esp8266-elf (note the name change)