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The time now is Thu 23 May 2013, 16:56 All times are UTC - 4 |
 Forum index » House Training » HOWTO ( Solutions ) |
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How to build a 3MB static Midori with plugins
Moderators: Flash, Ian, JohnMurga |
 
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jemimah
 Joined: 26 Aug 2009 Posts: 4309 Location: Tampa, FL |
In this example I'm compiling webkit 1.3.12 and midori 0.3.2. This tutorial is not intended for beginners at compiling. First I patch webkit since it segfaults like crazy otherwise.
This patch probably introduces a memory leak, so if you have a better patch let me know. I'll probably have something better shortly Then I set up my environment variables to optimize for size.
Configure webkit.
Don't get too creative with the options. Webkit tends not to compile if you turn things on that are off by default. Make clean does not work right. If you need to start over, delete and re-extract the whole source tree. Now edit GNUMakefile. The configure script probably added an -O2 to the end of the CFLAGS and CXXFLAGS variables. You need to remove that or you won't get a small build. Now run make and make install. This takes forever even on a fast machine. Edit the file /usr/lib/pkgconfig/webkit-1.0.pc to look like this:
Webkit isn't going to link correctly like this but we need to link by hand for this project anyway. Now you're ready to configure Midori.
Run make. It's going to bomb when it gets to the first plugin that needs webkit, but that's ok - it still creates the plugin despite the error message. We are trying to prevent the plugins from linking in webkit because the results will be huge otherwise. Run make a few more times until you reach this step:
Cd to the _build_ directory. Create /usr/lib/midori if it doesn't exist. If it does exist, delete any plugins that are inside. Copy the new plugins to /usr/lib/midori.
Now we are going to link the plugins in as shared libraries. This will allow us to have only one copy of webkit and we won't need to export the symbols, which saves even more size. Of course now Midori won't be able to start if its plugins are not there. There might be a better way to accomplish this - but this is the best I could figure out
You will need to adjust this depending on what dependencies you're building with. Now you should be able to run make install. Check the size of the Midori binary - I get around 8.6MB. You can then upx it to get it under 3MB. |
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sc0ttman
 Joined: 16 Sep 2009 Posts: 2174 Location: UK |
Great post, I love to see exactly how others compile stuff, it's so useful to know, yet seems to be a closely guarded secret most of the time! (Except in debian and ubuntu forums, where people seem to have to work hard to compile anything...) I think I will try this in Puppy 4, just to see... (probably won't work, if I do it!) And I know this may be out of the scope of this thread, but it would be nice to have a similar, simple, single post with: - how to use .diffs, apply patches - setup 'configure', common options used, etc - using CFLAG and CXXFLAG explanations - using 'make', or 'make install' - troubleshooting a failed compile attempt (maybe using a few popular apps as examples...) I personally would also like to know an easy way to split the package (and its DEV and NLS) easily from the source (or main filesystem if it was installed), once built... _________________ Akita Linux, VLC-GTK, Pup Search, Pup File Search |
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jemimah
Joined: 26 Aug 2009 Posts: 4309 Location: Tampa, FL |
Amigo wrote a program called src2pkg which can do most of that stuff automagically. It applies any patches, sets up your CFLAGS, configures and compiles many different types of build systems, and makes pets for you (split or not depending how you set it up). The packaging part actually works significantly better than the new2dir script. The only thing it doesn't do is troubleshoot. 
If you want to build midori without the voodoo, try a dynamic build. It's a little bigger but there are fewer issues to worry about. To get a dynamic build, just omit the "--disable-shared" flag when configuring webkit. Midori actually builds pretty easily if you stick with the default options. |
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technosaurus
 Joined: 18 May 2008 Posts: 3843 |
@Jem glad you finally got it, I know it was a lot of painstaking work. @Scott when I was working on pcompile(GUI), I read lfs hints and studied the code in variousbuild systems (including amigo's). Buildroot has links to a lot of them. BTW the stuff you want is mostly in my signature... also a sticky in additional pets _________________ Puppy Web Desktop Now with pet packages - Pet Packaging 100 & 101 |
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2lss
Joined: 20 Sep 2009 Posts: 225 |
Nice explanation!
Have you tried this patch on any newer versions of webkit? For me, anything past 1.3.5 seg faults a lot. But thats on 64 bit Debian. I haven't tried building one for puppy yet. |
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jemimah
Joined: 26 Aug 2009 Posts: 4309 Location: Tampa, FL |
Yes the problem started in 1.3.6. I believe the patch would probably work for anything newer than 1.3.5. I suspect this bug is only a problem if you compile with --with-unicode-backend=glib. However I think the patch does cause midori to crash during text entry for long posts and such. I think it should be better to check if the pointer is null before freeing it rather than just commenting out the free statement. I will fix the patch and post it once I'm happy with it. |
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jemimah
Joined: 26 Aug 2009 Posts: 4309 Location: Tampa, FL |
Ok this patch should be better.
I think these assertion failures from midori are somehow related to this bug. But at least it doesn't crash anymore.
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technosaurus
Joined: 18 May 2008 Posts: 3843 |
I found a potential webkit alternative, but can't find any source code. http://www.access-company.com/products/internet_appliances/netfrontbrowsernx.html Has anyone tried it & can point me to the source code??? _________________ Puppy Web Desktop Now with pet packages - Pet Packaging 100 & 101 |
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Dougal
 Joined: 19 Oct 2005 Posts: 2505 Location: Hell more grotesque than any medieval woodcut |
According to this:
(Not to mention that it doesn't seem to support x86...) _________________ What's the ugliest part of your body? Some say your nose Some say your toes But I think it's your mind |
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technosaurus
Joined: 18 May 2008 Posts: 3843 |
update: perhaps a webkitgtk version with google's v8 javascript engine is worth testing https://gitorious.org/~nayankk/webkit/nayankk-webkit I also found a tutorial for making ICU smaller if the glib unicode backend causes problems: http://userguide.icu-project.org/packaging (btw the data section is the important detail there) _________________ Puppy Web Desktop Now with pet packages - Pet Packaging 100 & 101 |
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How to build a 3MB static Midori with plugins
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