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Re: [Tinycc-devel] TCC and "smart" linking

From: David Mertens
Subject: Re: [Tinycc-devel] TCC and "smart" linking
Date: Wed, 10 Oct 2012 08:54:23 -0500


I think you missed Jared's point. There are many things one can try to target in a compiler. These include small compiler, fast compiler, produce compact executables, produce fast executables, and so on. GCC focuses on building fast executables. TCC's main goal is to quickly compile code. I repeat: runtime performance is not TCC's primary target. Minimizing code loading time would improve runtime performance at the cost of compile time, so you're not likely to get a lot of traction with your idea.

Can you think of a way to get smart linking to work with the many varied uses of TCC? I use TCC to compile C code on the fly in Perl scripts and call the resulting functions from my Perl code as I see fit. I don't expect smart linking to buy me much, if anything, but I do expect it to complicate TCC's internals and potentially slow it down. I am only one voice---and I am a user, not a developer---but I don't think that's a trade-off that I like much.

TCC is an open source project, of course. Perhaps your best solution is to fork it and add your own smart linking optimizations.


On Oct 10, 2012 2:11 AM, "Oleg N. Cher" <address@hidden> wrote:
I would mentioned that Turbo Pascal (7.1) has very fast compilation too, and was very compact - command-line compiler tpc.exe is 75 Kb. Then I do not agree with the fact that "smart" linking feature is a redundant in TCC. It's the absolutely necessary feature, especially if you actively work with large libraries and do not want to include all code from the libraries into your software.

Jared Maddox wrote:
Actually, TCC is about compiling code quickly. It is most appropriate
for compiling other compilers, quickly testing code, and compiling
code as part of a JIT engine. There's nothing wrong with an 'extended'
TCC, but any such thing should be kept mostly or entirely separate
from TCC itself.
Oleg N. Cher,
VEDAsoft Oberon Club

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