Re: [Tinycc-devel] .rept .endr for *.S. Any ideas?

[Michael Matz]

Hi,

On Thu, 14 Apr 2016, Sergey Korshunoff wrote:

> > Simply use GNU as for compiling your .S files from that old kernel.
> It is not so old.

Yes it is.  2.4.26 was released 2004, 12 years ago, which makes it 
ancient.

> It boots fine on AMD v140 CPU 2.2Ghz notebook (2011)

Sure, but that doesn't make the kernel non-old.  Or make it somehow 
sensible to change tcc to be able to compile it (except perhaps as 
testcase).

> And this kernel is compiled in one pass, with all source files passed to 
> the tcc. There are a few *.S files along *.c

Well, then change the build process to compile the *.S first by gas into 
.o files the pass those to tcc.

> > Remember tokes between the directives (instead of parsing them) and repeat
> > the parsing loop N times with that token list at .endr, for instance.
> 
> A main problem -- how to pass tokens to the next(). I can't remember how 
> to do this :-(

See begin_macro and it's uses.  That can store token in a buffer, which 
you then have to repeatedly reset macro_ptr from.  E.g. the use in 
tccgen.c for initializer parsing.


Ciao,
Michael.