ESP32 support?

[blanham]

Would it be possible to support the ESP32 in addition to the ESP8266?

[emosenkis]

Yes, it should be possible to support both, but it would need some sort of configuration to allow it to use different toolchains, flags, etc. for different target chips/boards. If you're interested in working on it, I can give you some pointers. Otherwise, I'm thinking about rewriting the project in Rust since it's gotten quite complex for a shell script. If that happens, I'll try to build that sort of configurability in from the start.

[blanham]

I'd be willing to try my hand at it. How would you advise me to start?

[emosenkis]

I would start by trying to rebase @Eroc33's changes to support ESP32: Eroc33@f3cdaf8 on top of HEAD.

I don't know if they work, but they seem to make changes in all the right places.

[TheDan64]

@blanham were you able to make any progress with this? I would also love to see ESP32 support

[jcard0na]

I have started to work on this and I think I'm very close. You can see my progress here: https://github.com/jcard0na/esp-rs/branches

At the moment the ESP32 build fails when running bindgen:

End of search list.
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:47:9: error: unknown type name 'pthread_t'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:48:9: error: unknown type name 'pthread_key_t'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:49:9: error: unknown type name 'pthread_once_t'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:50:9: error: unknown type name 'pthread_mutex_t'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:51:9: error: unknown type name 'pthread_mutex_t'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:52:9: error: unknown type name 'pthread_cond_t'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:662:19: error: use of undeclared identifier 'pthread_create'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:668:19: error: use of undeclared identifier 'pthread_join'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:674:19: error: use of undeclared identifier 'pthread_detach'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:680:19: error: use of undeclared identifier 'pthread_equal'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:686:19: error: use of undeclared identifier 'pthread_self'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:692:19: error: use of undeclared identifier 'sched_yield'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:699:21: error: use of undeclared identifier 'pthread_once'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:707:19: error: use of undeclared identifier 'pthread_key_create'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:713:19: error: use of undeclared identifier 'pthread_key_delete'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:719:19: error: use of undeclared identifier 'pthread_getspecific'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:725:19: error: use of undeclared identifier 'pthread_setspecific'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:732:14: error: use of undeclared identifier 'pthread_mutex_init'
/root/.platformio/packages/toolchain-xtensa32/xtensa-esp32-elf/include/c++/5.2.0/xtensa-esp32-elf/bits/gthr-default.h:739:21: error: use of undeclared identifier 'pthread_mutex_destroy'
fatal error: too many errors emitted, stopping now [-ferror-limit=]

I have little time to work on this and I'm a complete n00b with rust toolchain, so it may take me some time. Suggestions welcome.

[emosenkis]

This project is now deprecated. Please see http://quickhack.net/nom/blog/2019-05-14-build-rust-environment-for-esp32.html for a more direct approach to compiling Rust for Xtensa targets.