GCC 4.1 Released

Luineancaion writes "Looks like GCC 4.1 has been released. From what I know this includes the GNU Classpath merge and means that Azureus can now be used in a 100% Free-Software system. Thanks to everyone that worked on it, and keep up the good work!"

Comments

But...

[brilinux]

But I just finished compiling 4.0...

Re:But...

[strider44]

You're making too much of this. Between 4.0 and 4.1 isn't that big-a change. The only reason why it took so long for many distros to move between 3.3 and 3.4/4.0 was the change in the binary interface between the compilers. In other words a program compiled with 4.0 couldn't link to a library compiled with 3.3. There isn't this restriction between 4.0 and 4.1 so there's no reason why it can't go into the repositories straight after testing.

Re:But...

[digidave]

"But I just finished compiling 4.0"

You should have compiled it using 4.1. It's *much* faster.

Home depot

[Stevyn]

Most people who program, myself included as an engineering student, probably take this for granted, but GCC is like having a Home Depot down the street that gives their stuff away. For no cost, anyone can use these tools to create just about anything they want. It's pretty amazing, and fitting for Thanksgiving to show some appreciation, that we all have access to these incredible tools for free.

Re:Home depot

[Lisandro]

GCC is an impressive piece of software - either considered asopen source or in general. A lot of people preffer more "serious" C/C++ compilers, like Intels', but it's a remarkably good compiler by itself, very fast, produces stable and well optimized code AND it is available for every platform you could dream of developing on. Ah, and constantly improving support for other languages (specially Java) is a nice perk aswell :)

    It's safe to say that if we have a healthy OSS community, is because of the great developing tools available on OSS platforms. GCC is a strong contender for that crown, IMHO.

Re:Home depot

[Billly Gates]

I saw some benchmarks a few months ago that closes the gap in performance in c/c++ performance with gcc/g++ 4.0 and the Intel compilers.

Intel wrote them when gcc2.95 was still out and c++ performance was not that good nor was it truly modern ansi compliant by the iso. For example things like the STL were merely emulated and performance for non x86 cpu's was behind too.

With gcc3.x and now gcc4.x its fully caught up in almost all area's. Its nice now to have a nice c/c++ compiler for the alpha and mips processors that produce fast code.

I wonder if the rise of Linux and Free software is what made the compilers catch up?

By the way the Intel compiler is still the way to go for Fortran.

Re:Home depot

[macshit]

As for the compiler itself, yes, it's not the best of the bunch, but that doesn't mean it's any bad either (quite the opposite!). Intels' compiler, for example, still beats it for performance (at least the last few times i tried it), but i could live happily with GCC alone.

I've spent quite a bit of time hacking on gcc, and I'd say my biggest complaint is that a lot of the gcc code really sucks. It's chock full of gigantic impossible-to-understand chunks of code -- few comments, huge numbers of global variables, an "enumerate every case I could think of with 25 page if-statements" coding style, vast numbers of unwritten assumptions about the way your processor works. That it works at all, never mind as well as it does, is a testament to the dedication of gcc hackers.

I think a lot of this is historic, and the newer parts of the compiler are much better (and so the overall code quality is slowly improving as old code gets replaced), but gcc can still be a real pain to work on. If you're trying to port to an architecture that differs in some way from "typical" architectures, be prepared for misery.

Know and love GCC

[JoeShmoe950]

As a developer, I love GCC. Its great, easy, and best of all free. GCC is probably one of the most benifical open source projects around, more important even than linux.

Re:Know and love GCC

[AFairlyNormalPerson]

GCC is bigger than Jesus!

Re:Know and love GCC

[Per Abrahamsen]

Eh, GCC was the default compiler for several platforms before Linux existed, and was the prefered compiler for cross-compilation to embedded platforms, and for software that ran on a wide range of platforms. It was also the preferred compiler for ANSI C (GCC got support for ANSI C very early).

In other words, GCC would be exactly where it is today, had it not been for Linux.

Re:Know and love GCC

[DrXym]

In other words, GCC would be exactly where it is today, had it not been for Linux.

I doubt that. GCC was seriously stagnated way before 2.95/3.0 (hence the reason egcs appeared for a while) and was no match at all compared to various commercial compilers. Linux was about the only popular OS which *needed* a modern gcc and thus most of the development came from Linux stakeholders - Red Hat etc. Without Linux I fully expect that the compiler would be an also-ran by now, along with most commercial Unices.

GCC is the Key to Open Source's Success

[slashfun]

For 13 years I have been a professional UNIX administrator, and if I had to pin down the single most influential software that help propel the Open Source revolution, I would name GCC.

Back in the day the first step in loading up a UNIX workstation with Open Source tools, was to go out and grab a limited precompiled version of GCC, then bootstrap compile an more suitable version, then go to town on compiling all the rest of the goodies that we couldn't live without. We did it so often that it became second nature to go through this process.

I salute you, makers and maintainers of GCC.

Re:GCC is the Key to Open Source's Success

[jbn-o]

Please do take this in the supportive spirit in which it is intended. It's a letter from GCC's initial author, Richard Stallman (also founder of the free software movement) to a CNet article author who referred to GCC as an "open source" programming tool.

Quoting from that letter:

I appreciate the admiration expressed in your article about upgrading the GNU Compiler Collection, but it erred in describing the program as an "open source" programming tool. I developed GCC as part of the Free Software Movement--so that people can use computers in freedom as part of a community.

Free software means software that respects the users' freedom. The philosophy of the movement is that users of software should be free to run it, study it, change it, redistribute it and publish modified versions.

With these freedoms, you're free to engage in cooperative development; you're also free to develop it on your own or to redistribute it unchanged. Describing this as a "philosophy of cooperative development" emphasizes one beneficial consequence of freedom at the expense of freedom itself.

It was impossible in 1984 to use a computer in freedom, since all the operating systems were proprietary. So I launched the development of GNU, a free Unix-like operating system.

A Unix-like system must include a C compiler, so I wrote one: GCC. I designed it to handle other languages, also, so that GNU users could use more than one. GCC, like the GNU/Linux operating system in which GCC is a crucial part, exists because of the ideals of the Free Software Movement--the ideals that are forgotten when speaking of open source.

Of course, this is not a letter from RMS to you or directly pertaining to your article. However, I thought that it was worth mentioning in case people want to tell their friends about the new GCC release. It seems that people who frequent /. go to some length to make sure that they describe Linus Torvalds' initial authorship of the Linux kernel in a manner according to his chosen movement. I thought that the same respect should be due to RMS.

Azureus

[DavidLeeRoth]

Azurues can now be used in a 100% free system to download not so free software :)

Changelog?

[Theovon]

No mention of a changelog? If you're going to announce something, it sure would be nice to have a link to a page that explains some interesting stuff about what's new in it. I've tried looking at their wiki, but its 'news' section and its stuff on 4.1 hasn't been updated since like March.

Re:Changelog?

[Yotsuya]

Google to the rescue.

http://gcc.gnu.org/gcc-4.1/changes.html

That's good.

[Sheepdot]

From what I know this includes the GNU Classpath merge and means that Azureus can now be used in a 100% Free-Software system.

That's good for us, considering that the #1 use of Azureus is to pirate 100% commercial software.

Actually, it's not released yet

[Dan Berlin]

I'm not sure what gave the person who submitted the story, or the editor who posted the story, the idea that 4.1 was released, but it isn't. In fact, it was just branched less than a week ago. We haven't even put out an RC yet! Really, it's not out. When it is, you will see something sent to gcc-announce

Still not released

[lancelott]

GCC 4.1.0 is not yet out as far as I know. This story is misleading. Just because the site lists 4.1.0 on the front does not mean it is out. Notice that it doesn't have a release date on it.

Re:Java status?

[Anonymous Coward]

Changelog here

      http://gcc.gnu.org/gcc-4.1/changes.html

Re:I'm thinking of contributing to GCC...

[larry bagina]

Depends. Did you get an A++ in your graduate-level compiler construction class? Are you willing to spend a couple months (or more) reading through the gcc source code to get an understanding of how all the pieces work. Are you willing to spend a few more months testing your optimizations (mathematically and with source code) to make sure they don't break anything?

The basics of compilers aren't difficult. 2nd year CS students can understand toy compilers. But gcc isn't a toy compiler, it's a real compiler in the real world dealing with a sometimes crazy language, and even crazier users. If you can write better optimizing code, prove it works, and it doesn't infringe on any patents, submit your code.

Re:Masters of understatement

[diegocgteleline.es]

Hey, I like this: "GCC can now emit code for protecting applications from stack-smashing attacks. The protection is realized by buffer overflow detection and reordering of stack variables to avoid pointer corruption"

Re:on the java side

[ghakko]

The caching JIT has been available since 3.4, but is disabled by default. To turn it on, you'll need to add these switches to your gij command line:

-Dgnu.gcj.jit.compiler=/usr/bin/gcj -Dgnu.gcj.jit.cachedir=/tmp -Dgnu.gcj.jit.options=-O2

In practice, this is not a great help because gij and gcj are so slow. You may be able to get much better results compiling directly from Java source to machine code, and then prelinking the resulting executables and shared objects to reduce startup time.

RMS wrote GCC to pursue software freedom.

[jbn-o]

The philosophical difference RMS describes is quite clear and RMS points it out quite well. The benefits we get from free software are great, but they shouldn't be celebrated at the expense of celebrating the freedom free software gives us for its own sake. You can't "make that group as broad as you want or as narrow as you want" and still convey the same point. People might not know about software freedom, so it's easy to make that mistake without any malicious intent (as I think was the case here). But to set out to refer to programs like GCC—programs written to make software freedom real—in the name of a movement that was built in part to not mention software freedom is ahistorical.

Some minor corrections ...

[ghakko]

GCC 4.1 has not been released yet.

A modified version of Classpath has been included with GCJ since 3.2.

Azureus may start in GIJ 4.0, but won't work properly because it relies on parts of the Sun JDK which aren't completely implemented yet in GCJ.

Bogus Blathering

[ChaoticCoyote]

As many have pointed out, GCC 4.1 is actually several months away from release. Slashdot "editors" might want to learn about a concept called "fact checking." I'm disturbed by the amount of GCC bashing in this list. I've never met a perfect compiler, and GCC is far superior to many commercial tools I've used. It provides professional-quality C, C++, Objective-C, Fortran 95 (almost), Java, and Ada compilers for dozens of platforms; the code generation is imprefect, but then again so is most of the code GCC is required to compile! The vile lack of appreciation for GCC simply astounds me -- it is the foundation of Free Software. And it is a fine piece of work that is constantly growing and evolving -- though not as fast as Slashdot's headlines might suggest... ;)