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Rockbox mail archiveSubject: Re: Using gcc 4.4.0 to compile RockboxRe: Using gcc 4.4.0 to compile Rockbox
From: Thomas Martitz <thomas.martitz_at_fhtw-berlin.de>
Date: Wed, 25 Feb 2009 01:34:55 +0100 Mark Allums schrieb: > For the fun of it, I created a cross-compiler based on a developer > snapshot of gcc. It is a successor to 4.3.3, essentially an early > 4.4.0. I am aware that versions other than 4.0.3 don't work well. > > I thought you might like a bit of a report. > > The development environment is hosted on a Debian Sid system. > > I used the 4.3.3+something gcc to create a portal-player ARM firmware > for the Sansa e200. > > It is based on version r20089-090223 of Rockbox > > I got the source for GCC through svn from an official GNU mirror. I > did not record the release version. It is a quite recent snapshot, > though. > > I used the Rockbox wiki's instructions for a manual build as a checklist. > > I did not apply any patches. > > I used the Debian source for binutils, v. 2.19.1, but did not apply > any patches. > > I built gdb v. 6.8, but I haven't yet tried to use it. > > The resulting firmware works very well, except it crashes when playing > certain music files. > > > o The voice menu work perfectly > o The keyclicks work perfectly > o It can play .ogg Vorbis well. > o It can play .wav well. > o It crashes trying to play .mp3 with the error message "Undefined > instruction at 40018920 (0)" > o It crashes trying to play .wma with a similar error message. > o It plays .m4a Apple-encoded songs very well > o The voice recorder works well. > o The radio works, and you can record from FM > o FreeDoom works including sound > o The screen capture did not behave as expected. Not sure if it is the > firmware or user error. > o It plays FLAC lossless perfectly > > > Hope this report helps. What needs to be done to fix the problem? > > Mark Allums I've tried building Rockbox using gcc-4.3.2 and binutils-2.19.1. I have applied the Rockbox patches. Actually, I just slightly hacked rockboxdev.sh to make it work. I used gcc-4.3.3 and binutils-2.19.1 (both from the ubuntu jaunty packages repo) to compile the arm compilers. My experience doesn't differ much, though. *I get a undefined instruction too with mp3. It turned out, that mp3 on cop doesn't quite work with that gcc (the undefined instruction is in math_synth_thread. Mpegplayer worked though (with or without mp3 on cop). Mp3 works with COP capabilities removed. Ogg works fine, AAC crashes with data abort (they're Nero encoded). I haven't tried other codecs. *The binsize is about 5k higher. *The |<< button on my fuze does hardly work. *gcc-4.3 apparently needs extra libs, that 4.0.3 doesn't need (not sure if they're even interesting for Rockbox), which I needed to compile and install before. *screendump doesn't work in the WPS, the upper parts of the bmp show the main menu. The rest worked OK, I'd say. I have not made a performance comparison (yet). I have build a m68k compiler too (and I could probably build a sh one too), if someone is interested to try a build on such a target. Received on 2009-02-25 Page template was last modified "Tue Sep 7 00:00:02 2021" The Rockbox Crew -- Privacy Policy |