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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: Ada Implementation of functions and produce C for exotic
 architectures (Expressif)
Date: Thu, 12 Apr 2018 08:51:50 +0100
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Date: 2018-04-12T08:51:50+01:00
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rrr.eee.27@gmail.com writes:

> On Thursday, April 12, 2018 at 8:17:54 AM UTC+2, Patrice Freydiere wrote:
>> Le mercredi 11 avril 2018 23:14:52 UTC+2, Simon Wright a écrit :
>>
>> > Downloading & setting up the virtual machine as spec'd in the ESP8266
>> > Getting Started Guide, the target of the 4.8.2 cross-compiler is
>> > xtensa-lx106-elf. Whether this will work with standard unpatched
>> > binutils etc I don't know.
>>
>> Hi Simon, and thank's for your response,
>> Effectively, your path seems promising, as the crosstool can be
>> build on gcc,
>> https://dl.espressif.com/doc/esp-idf/latest/get-started/linux-setup-scratch.html

Slightly confused about ESP processor architecture - that link is
apparently about xtensa-esp32-elf.

> Some time ago (~2 years) I already had a working Ada compiler for the
> ESP8266. but that was only the compiler itself, no run-time-system
> (RTS). I could successfully compile and link a Ada object file into my
> project. It was enough to simply state the --target at the configure
> steps of binutils and gcc.

One thing to watch out for -- you need a working Ada host compiler and
its sources in order to build the cross-compiler. Since the host is a
Linux system, that should be OK.