Compiling on Ubuntu 19.04 about shruthi-1

[pichenettes]

This seems to be unrelated to the Shruthi code itself, but an error in the compiler itself.

Anyway, the Shruthi-1 codebase is so CPU and space constrained that it is only guaranteed to work with avr-gcc-4.3.3. Any other version will generate slightly different code that might not fit in the 64k of Flash memory available on the ATMega.

[mluds]

Thanks! For anyone wondering, I got it to compile (yet to test) by doing the following:

1. Download Ubuntu 10.04: http://old-releases.ubuntu.com/releases/10.04.0/ and run in Virtualbox or VMware.
2. Edit /etc/apt/sources.list and change all instances of us.archive with old-releases (to get package updates).
3. sudo apt-get install git-core gcc-avr avrdude avr-libc
4. Clone the source with --recursive for the submodules.
5. Run make

This uses avr-g++ 4.3.4, so hopefully it gives the right output.

[vcavallo]

Thanks! For anyone wondering, I got it to compile (yet to test) by doing the following:

1. Download Ubuntu 10.04: http://old-releases.ubuntu.com/releases/10.04.0/ and run in Virtualbox or VMware.

2. Edit /etc/apt/sources.list and change all instances of `us.archive` with `old-releases` (to get package updates).

3. `sudo apt-get install git-core gcc-avr avrdude avr-libc`

4. Clone the source with `--recursive` for the submodules.

5. Run `make`

This uses avr-g++ 4.3.4, so hopefully it gives the right output.

Thanks for all the tips, @mluds ! After a lot of crazy nonsense I got this working on Ubuntu 10.
After makeing, the resulting firmware is 65396 bytes, which is above the recommended limit of 64512 :(

I wonder if it's because of using 4.3.4 rather than 4.3.3?

@pichenettes, is there anything a desperate maniac could manually trim out of the source files to cut the size down while keeping it functional? It seems like getting a working version of 4.3.3 running is super complicated but also the only viable way to flash this thing at this point. Any ideas?

[vcavallo]

Quick update: I've managed to downgrade to 4.3.3.
After running make clean and verifying that the build process re-ran properly, it still looks like the file is over the size limit:

(screenshot above shows the version of avr-g++, and this path is the one used in the makefile for the tools path)