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gkmac
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PostPosted: Fri Jan 07, 2005 11:57 pm    Post subject: Reply with quote

sindre wrote:
aethyr wrote:
Out of curiosity, has anyone built KDE with these flags? I only know examples of people using it to rebuild GNOME.

Solar expressed in the bug report that
Quote:
"last [he] knew KDE/QT had some problems respecting any LDFLAGS. (mixed results)".

I'm curious what people's experiences have been.

Thanks.
I even edited the qt ebuild to make it use my CXXFLAGS and LDFLAGS, kde used them automatically. No problems yet.

You no longer need to edit the qt ebuild, since that now puts in your CFLAGS, CXXFLAGS and LDFLAGS into qmake.conf for you.
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blueSceaDa
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PostPosted: Thu Jan 13, 2005 3:28 pm    Post subject: Reply with quote

it's me again :wink:
having a question...

could it be dangerous to compile some packages with and some without these LDFLAGS="-Wl,-O1" ??
at the moment I don't fully trust them and just compile stuff like firefox with them ...

but for more system critical stuff like binutils gawk etc, etc... - I don't do it

anyone can tell if it's ok like I do atm ?
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echo 'LDFLAGS="-Wl,-O1"' >> /etc/make.conf - no problems here
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PostPosted: Thu Jan 13, 2005 4:07 pm    Post subject: Reply with quote

blueSceaDa wrote:
it's me again :wink:
having a question...

could it be dangerous to compile some packages with and some without these LDFLAGS="-Wl,-O1" ??
at the moment I don't fully trust them and just compile stuff like firefox with them ...

but for more system critical stuff like binutils gawk etc, etc... - I don't do it

anyone can tell if it's ok like I do atm ?
First of all, your logic is somewhat faulty. If LDFLAGS do in fact cause strange vulnerabilities and such, the last place you would want them is in a web-aware app such as firefox. If only binutils or gawk is vulnerable, then (AFAIK) a potential cracker would have to have physical access to your machine to do harm. Not so with web apps.

Anyway, I've been using those LDFLAGS for my whole system pretty much since this thread started. And I've had no strange LDFLAGS problems.
Also, keep in mind that Ubuntu is built with LDFLAGS by default, so at least one distro thinks LDFLAGS are stable enough.
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blueSceaDa
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PostPosted: Thu Jan 13, 2005 4:22 pm    Post subject: Reply with quote

Oh ok! Thanks for the fast answer!
So you just put them in your actual system or built a new system from the beginning with those flags ?
If you just put them in, I think I'll also do so...
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PostPosted: Thu Jan 13, 2005 4:35 pm    Post subject: Reply with quote

I just added the LDFLAGS line to make.conf on my existing system, emerged a few packages, liked the performance increase, and then just left the flags there. I run "emerge world" every 2 to 3 weeks, so by now most of my system has LDFLAGS. If you want to waste(depending on how you look at it) alot of time compiling, you can do an "emerge -e world".
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blueSceaDa
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PostPosted: Thu Jan 13, 2005 4:39 pm    Post subject: Reply with quote

no don't want to waste that time :wink:
I'll now just put in the LDFLAGS ... thanks for the help...
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charlieg
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PostPosted: Thu Jan 13, 2005 6:06 pm    Post subject: Reply with quote

Had it for a month or so now. Originally when I put it in, my system borked (gcc killed itself, or more specifically gcc-config), but it turned out to be an unrelated bug.

Everything is working peachy here!
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blueSceaDa
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PostPosted: Thu Jan 13, 2005 6:09 pm    Post subject: Reply with quote

8O I hope it's really and unrelated bug ... thanks for the information
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PostPosted: Thu Jan 13, 2005 6:18 pm    Post subject: Reply with quote

blueSceaDa wrote:
8O I hope it's really and unrelated bug ... thanks for the information


Yeah I am sure it was. I recently did an "emerge -e world" with LDFLAGS and everything is green across the board. Runs smooth as a baby's bottom.
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blueSceaDa
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PostPosted: Thu Jan 13, 2005 6:36 pm    Post subject: Reply with quote

ok much thanks =) :)
firefox really runs better ...
anyway still not like it should, but that's discussed in another thread...
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aethyr
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PostPosted: Thu Jan 13, 2005 9:04 pm    Post subject: Reply with quote

charlieg wrote:
Had it for a month or so now. Originally when I put it in, my system borked (gcc killed itself, or more specifically gcc-config), but it turned out to be an unrelated bug.

Everything is working peachy here!


What was the bug? I'm curious because I felt responsible for you potentially switching distributions :P
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Deranger
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PostPosted: Thu Jan 13, 2005 9:16 pm    Post subject: Reply with quote

Another LDFLAGS success report. Whole system compiled with LDFLAGS="-Wl,-O1", works very well.
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Mystilleef
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PostPosted: Fri Jan 14, 2005 3:42 pm    Post subject: Reply with quote

Anyone know what -Wl,-O2 does?
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blueSceaDa
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PostPosted: Fri Jan 14, 2005 3:47 pm    Post subject: Reply with quote

I think it's the same because it says:

Code:
-O level
If level is a numeric values greater than zero ld optimizes the output. This might take significantly longer and therefore probably should only be enabled for the final binary.


and I think it would be better documented if there would be something more if not using "1"
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Mystilleef
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PostPosted: Fri Jan 14, 2005 4:08 pm    Post subject: Reply with quote

That makes sense, thanks.
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charlieg
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PostPosted: Sun Jan 16, 2005 3:30 am    Post subject: Reply with quote

aethyr wrote:
What was the bug?

A dodgy gcc-config package. [edit - um, not binutils, but gcc-config!]

(Speaking of which, is it my imagination or has the quality checking process for ~x86 really gone downhill in the last 2 weeks or so? I haven't managed to successfully do an 'emerge world -uv' for at least that long due to one thing or another simply not compiling. And when I fix it - usefully by referring to bugs.gentoo.org - something else is always refusing to compile. I know ~x86 is 'testing' but it's ridiculous how much is failing at the moment... at least 10+ things here in the last few weeks.)

aethyr wrote:
I'm curious because I felt responsible for you potentially switching distributions :P

I apologise, it did seem a bit melodramatic of me. The comment wasn't really that you were to blame, it was just me thinking aloud that I just can't be arsed going through two days of installation when it could be ready in 30 minutes. My time is no longer as expendable as it once was.
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ian!
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PostPosted: Sun Jan 16, 2005 2:08 pm    Post subject: Reply with quote

Oktane wrote:
Another LDFLAGS success report. Whole system compiled with LDFLAGS="-Wl,-O1", works very well.

Just for the records: Same here. Works like a charm!
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blueSceaDa
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PostPosted: Sun Jan 16, 2005 3:18 pm    Post subject: Reply with quote

I also have no problems until now, just adding the LDFLAGS="-Wl,-O1" to the make.conf
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rhill
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PostPosted: Mon Jan 17, 2005 5:48 am    Post subject: Reply with quote

LDFLAGS="-Wl,O1" since 12/05/04. no problems.
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PostPosted: Tue Jan 18, 2005 5:17 am    Post subject: Reply with quote

EDIT: my bad...somehow I posted this in the wrong thread :oops: .

/me whistles casually and tries to pretend nothing out of the ordinary happened.
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Last edited by discomfitor on Tue Jan 18, 2005 4:11 pm; edited 3 times in total
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aethyr
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PostPosted: Tue Jan 18, 2005 5:29 am    Post subject: Reply with quote

Darckness wrote:
ETA until this thread (and others like it) cause ciaranm to fly off the handle again: not long enough.

Seriously people, all these threads do is eventually start flame wars between the devs and users about ricing. There's plenty of existing documentation on how/what to set your *FLAGS to right here on these forums and it can all be accessed by using a mystical button. Unfortunately, the button I am referring to is the "Search" button, and you don't learn how to use it properly until you've retired.


huh? When I posted this thread, there was exactly 1 other thread on the forums relating to this topic, and I referenced it in my first post.

ciaranm has already posted here a few times, why don't you read it? :P
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Lokheed
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PostPosted: Tue Jan 18, 2005 5:37 am    Post subject: Reply with quote

Dont feed the trolls...moving on.
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taskara
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PostPosted: Wed Jan 19, 2005 5:20 am    Post subject: Reply with quote

has anyone tried with

LDFLAGS="-Wl,-O1 -Wl,--enable-new-dtags -Wl,--sort-common -s"

as per LDFLAGS Central?
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PostPosted: Wed Jan 19, 2005 6:02 am    Post subject: Reply with quote

Code:
LDFLAGS="-Wl,-O1"


trying this now, looks interesting =]
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rhill
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PostPosted: Wed Jan 19, 2005 6:23 am    Post subject: Reply with quote

taskara wrote:
has anyone tried with

LDFLAGS="-Wl,-O1 -Wl,--enable-new-dtags -Wl,--sort-common -s"

as per LDFLAGS Central?


--enable-new-dtags is default for recent binutils. i played with --sort-common, but not long enough to make a judgement.
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