[Tinycc-devel] Very sorry - newbie questions

[Tony Robinson]

Hello,

Very sorry for newbie questions but I'm looking for C compiler for a 
processor that I've been very slowly building as a hobby.   The 
instruction set is super simple (Rz = Rx op Ry for op in ADD, SUB, AND, 
OR, XOR, ASR plus basic LOAD/STORE/PUSH/POP instructions) and as the 
clock rate is only about 50kHz I'm not too worried about optimization.   
Portability is key - I will port FORTH but would love C.

But all that is background, I'm wondering if;

a) tcc is the simplest C compiler for me to retarget and
b) assuming that it is, I did the standard:

$ tar xvf tcc-0.9.26.tar.bz2
$ cd tcc-0.9.26
$ ./configure
$ make
$ make test
make -C tests test
make[1]: Entering directory '/home/tonyr/nanocpu/tcc-0.9.26/tests'
------------ hello-exe ------------
../tcc -B.. ../examples/ex1.c -o hello || (../tcc -vv; exit 1) && ./hello
Segmentation fault (core dumped)
Makefile:62: recipe for target 'hello-exe' failed
make[1]: *** [hello-exe] Error 139
make[1]: Leaving directory '/home/tonyr/nanocpu/tcc-0.9.26/tests'
Makefile:316: recipe for target 'test' failed
make: *** [test] Error 2

that is. running the complied version of ex1.c seg faults.  I'm on 
standard xubuntu:

$ uname -a
Linux code0 4.4.0-59-generic #80-Ubuntu SMP Fri Jan 6 17:47:47 UTC 2017 
x86_64 x86_64 x86_64 GNU/Linux
$ code0 tonyr: gcc --version
gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
Copyright (C) 2015 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.


Tony
P.S. more CPU info than you probably wanted to know at nanocpu.org