XRP Ninja

Finally, I have produced some results. I have watched 6 seasons of 24 and 2 seasons of Friends since late last month. So this is delayed. :P The patch is here . I think it still need some tweaks, you can always get the latest patch in my loongson overlay on http://www.gentoo-cn.org/gitweb . The produced xulrunner could run a little example: http://dev.gentoo.org/~r0bertz/xulrunner/myapp.tar.bz2 (untar the tarball, cd myapp && xulrunner-1.9 application.ini) However, I haven't got a fully functioning firefox yet. Some font size is extremely large. And sometimes bus error. I have noticed that I have used -O3 to compile it. I will try -O2/-O1 later and see if it still bus error.

Update: It is said that this problem has already been fixed . I will test it later. Actually I intended to send this to LKML, but just before I was about to send I found there was already some discussions about this . So instead I decided to just post it here. To make long story short, please take a look at these two files first: The first file , which will become part of /usr/include/endian.h. This file defines both __LITTLE_ENDIAN and __BIG_ENDIAN. And this file will be included by the second file. The second file , which will be /usr/include/linux/byteorder.h Obviously, this test in the second file will fail: #if defined(__LITTLE_ENDIAN) && defined(__BIG_ENDIAN) # error Fix asm/byteorder.h to define one endianness #endif It seems that there is an inconsistency between Linux and glibc on handling __LITTLE_ENDIAN and __BIG_ENDIAN. Linux treats them like a flag, while glibc treats them like a value. glibc uses __BYTE_ORDER to determine the endianness. This problem must be...

I got a donation of a Lemote Loongson 2F box somewhere around July this year and have been working on it in my spare time since I got it. The other day I made a summary about what I have done so far and posted it on Lemote's bbs. The links is http://www.lemote.com/bbs/viewthread.php?tid=20134 My work involves toolchain, kernel, xorg-server MIPS or Loongson support and userland library/application gcc 4.4 patch. The most prominent achievement so far is an N32 ABI stage3 (well, actually just a tarball, not made using catalyst) optimized for Loongson 2F with MIPS PLT support. It is actually not that easy as you would've imagined, N32 has many problems as you can see from the above posted link. I posted it on Lemote's bbs along with some instructions of how to use it: http://www.lemote.com/bbs/viewthread.php?tid=20125 According to some testers, performance of some applications in this system has an up to 30% increase comparing with the performance of the same apps in system Usi...

Background: http://ciaranm.wordpress.com/2008/09/28/eapi-2-src_uri-arrows/ Today I found arrows in SRC_URI is not working in my box, so I took a look at the code, found something, and sent this: http://www.nabble.com/a-little-patch-related-to-arrow-in-SRC_URI-td20732745.html However, as Zac pointed out, the better solution is not to define your own fetch and resume command but rely on the default one. The default ones are defined in /etc/make.globals: FETCHCOMMAND="/usr/bin/wget -t 5 -T 60 --passive-ftp -O \"\${DISTDIR}/\${FILE}\" \"\${URI}\"" RESUMECOMMAND="/usr/bin/wget -c -t 5 -T 60 --passive-ftp -O \"\${DISTDIR}/\${FILE}\" \"\${URI}\"" The rules of thumb is to make sure you save the file at ${DISTDIR}/${FILE}, since FILE is just the file name, doesn't include path. Previously I have fetch and resume command defined in make.conf, and have used "-P ${DISTDIR}" instead of "-O ${DISTDIR}/${FILE}". Maybe...

I have reported on gcc mailing list. http://gcc.gnu.org/ml/gcc/2008-11/msg00076.html Also I found the solution: http://gcc.gnu.org/ml/gcc/2008-11/msg00087.html Now I have built gcc-4.4 with my modified patch with "-march=mips3", and am building itself again using "-march=loongson2f". Note that enabling -O2 in later stages is not working yet. Please check this bug report for more information if you are interested: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38052 EDIT: just heard from Kumba, this flag used together with -O1 will trigger this bug: -foptimize-sibling-calls Optimize sibling and tail recursive calls. Enabled at levels -O2, -O3, -Os. The modified gcc 4.4 ebuild is here and some relevant libraries here .

http://gcc.gnu.org/ml/gcc-patches/2008-11/msg00273.html I have put it in my loongson overlay . BTW, the gcc svn ebuild is from dirtyepic's overlay. Thanks, ;) zhangle@2f ~ $ cat hello.c #include<stdio.h> int mul(){ unsigned long a = 0xffffffff; unsigned long b = 0xf; return a * b; } zhangle@2f ~ $ gcc -march=loongson2f hello.c -S zhangle@2f ~ $ gcc -march=mips3 hello.c -S -o hello-mips3.s zhangle@2f ~ $ diff -u hello.s hello-mips3.s --- hello.s 2008-11-08 18:16:52.000000000 +0800 +++ hello-mips3.s 2008-11-08 18:16:55.000000000 +0800 @@ -25,7 +25,8 @@ sw $2,8($fp) lw $3,12($fp) lw $2,8($fp) - multu.g $2,$3,$2 + mult $3,$2 + mflo $2 move $sp,$fp lw $fp,20($sp) addiu $sp,$sp,24

distcc's got zeroconf support That is cool! However, there are problems (althouth not everyone got these problems). One of them is that if you have multiple version of gcc's or even cross compilers, distcc clients can't discover them, since distccd will only register your current active gcc. And if you want to change your native compiler's version, you must restart distccd in order to let it take effect. Having multiple gcc's may not be common in other distribution, but this is common in gentoo. This is what I have on my x86 notebook: gcc-config -l [1] i686-pc-linux-gnu-4.3.1 * [2] mipsel-unknown-linux-gnu-4.3.0-alpha20080731 [3] mipsel-unknown-linux-gnu-4.3.1 [4] mipsel-unknown-linux-gnu-4.4.0-alpha20080718 * [5] mipsel-unknown-linux-gnu-4.4.0-alpha20080801 [6] powerpc-unknown-linux-gnu-4.2.3 * So I made a little patch: https://bugs.gentoo.org/show_bug.cgi?id=233843 Hope there will be a distcc-2.18.3-r14 or distcc-3.0_rc4 in tree soon, ;)