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Re: [Tinycc-devel] mob-stuff branch?


From: Bernhard Reutner-Fischer
Subject: Re: [Tinycc-devel] mob-stuff branch?
Date: Tue, 25 Oct 2022 00:08:33 +0200

On 24 October 2022 21:05:46 CEST, grischka <grishka@gmx.de> wrote:
>On 23.10.2022 09:48, Bernhard Reutner-Fischer wrote:
>> Hi Grischka and folks!
>> 
>> I have just pulled after some time.
>> In my clone, i see a remotes/origin/mob-stuff branch and i wonder what
>> that is/was about, does anybody remember by chance? Was that a staging
>> area for mob or somesuch?
>> 
>> Maybe it's an artifact that was pruned already?
>
>Hi,
>
>Indeed I did delete that branch (and another one) remotely not that
>long ago (because of presumably little public interest).

Fair enough, but see below.


>> The last couple of commits on that branch are listed below.
>> 
>> AFAICS the "warn about incorrect use of output_*" by using an enum did
>> never end up on mob.
>> We seem to have --{no-,}whole-archive by now, so that's obsolete i
>> guess. And the elf-interpreter toggle is in there, too, so that's fine.
>> 
>> Not sure what you would think about the idea i toyed with in "add
>> --enable-shared, part1". IIRC the idea was to cut down on memory usage
>> when running many tcc processes or something along those lines.
>> 
>> thanks!
>> 
>> $ git log -n7 origin/mob-stuff
>> commit bfa394dab88cb417bb540c32647f04d08e9838af (origin/mob-stuff)
>> Author: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
>> Date:   Wed Sep 2 15:55:48 2009 +0200
>> 
>>      Move bounds-checking code to a bcheck.a
>> 
>>      ... to avoid undefined references to __bound_new_region()
>>      (when using a libtcc1_s.so instead of libtcc1.a) on i386.
>> 

That's an open question I think.


>>      Signed-off-by: aldot <rep.dot.nop@gmail.com>
>> 
>> commit a39d055d0e666b152df87b4a603c670c3af37d68
>> Author: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
>> Date:   Wed Sep 2 15:55:48 2009 +0200
>> 
>>      Handle --whole-archive
>> 
>>      Support and document -Wl,--{no-,}whole-archive.

done.
Didn't check if what's in there actually works.

>> 
>>      Signed-off-by: aldot <rep.dot.nop@gmail.com>
>> 
>> commit f0e8b23d02a4c06789b4b8876c65866a237ce570
>> Author: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
>> Date:   Tue Sep 1 13:32:34 2009 +0200
>> 
>>      Implement -m{uclibc,glibc} to choose elf_interp
>> 
>>        Support -muclibc and -mglibc (default) to choose between the elf
>>        interpreter like gcc does.
>> 
>>        $ ./tcc -o hi-glibc hello.c
>>        $ ./tcc -muclibc -o hi-uclibc hello.c
>>        $ readelf -l hi-* | egrep "(^File: | interpreter)"
>>      File: hi-glibc
>>            [Requesting program interpreter: /lib/ld-linux.so.2]
>>      File: hi-uclibc
>>            [Requesting program interpreter: /lib/ld-uClibc.so.0]

Presumably done.
Didn't check how it's implemented though.

>> 
>>      Signed-off-by: aldot <rep.dot.nop@gmail.com>
>> 
>> commit 83cb1364a606fa9fbff450a65ab68e09a5bb4e42
>> Author: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
>> Date:   Wed Sep 2 12:03:51 2009 +0200
>> 
>>      Revert "add --enable-shared, part1"
>> 
>>      This reverts commit 9257c5221ea4f095d813082716f786c6c5d23321.
>> 
>>      Signed-off-by: aldot <rep.dot.nop@gmail.com>
>> 
>> commit d90eb2008b62d19f70bdd14bdf9d784b8789da5d
>> Author: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
>> Date:   Tue Sep 1 17:04:42 2009 +0200
>> 
>>      add --enable-shared, part1
>> 
>>        Build a libtcc.so and link the tcc binary against it.

That area is, i believe, not dealt with yet, is it?

It would serve 2 purposes:
- Runtime mem consumption reduction.
- Would help establish an improved interface to the "backend".

I'd encourage discussion around that area.
Mainly to cleanup an streamline internal interfaces TBH.

>> 
>>      Signed-off-by: aldot <rep.dot.nop@gmail.com>
>> 
>> commit 8a555345e3faa37ff0b2c0b84ae1f42358400923
>> Author: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
>> Date:   Tue Sep 1 14:27:41 2009 +0200
>> 
>>      warn about incorrect use of output_*
>> 

Not addressed yet.
I think we should do something along those lines. WDYT?


>>      Signed-off-by: aldot <rep.dot.nop@gmail.com>
>> 
>> commit 3a40b44938d59b71d0c010579d9bd9f05e7eed46
>> Author: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
>> Date:   Tue Sep 1 11:52:51 2009 +0200
>> 
>>      allow for non-stripped install
>> 

That's not dealt with as far as I'm aware.
Nowadays distros tend to split off -dbgsym packages on their own. So if we 
strip the debug on our own, this defeats usability and debug ability for distro 
users IMO.

I think we should at least give distros an easy way to decide on their own, 
shouldn't we.

thanks and cheers,



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