XRP Ninja

Almost forget to mention, now with this workaround http://bit.ly/d5rBqp , N32 firefox-3.6.8 is working again. I am still trying to fix the binutils bug. http://sourceware.org/bugzilla/show_bug.cgi?id=11956 I am feeling that I am not far from a break through. BTW, Shenzhen Linux User Group will celebrate Software Freedom Day 2010 on this Saturday. If you happen to be in town by then, do drop by, ;) http://bit.ly/sz_sfd_2010 If you can come, and don't understand Chinese, I am always ready for help. ;)

I have not blogged here for some time. But that does not necessarily mean I am slacking, ;). Instead I have been doing things. I should've blogged more. http://www.gentoo-cn.org/gitweb/?p=loongson.git;a=shortlog Redhatter posted two blogs related to Yeeloong's status. I guess I should say something too. First of all, I recommend this mailing list http://groups.google.com/group/loongson-dev to those who want to know the latest news about Loongson. If you want to try Gentoo on Yeeloong, you can take this http://www.gentoo-cn.org/~zhangle/loongson_mips3_n32_mplt_20081231.tar.bz2 The file's sha256sum is c94bcd45e58e5f4b8314942a6b3110a2316fd74adb009c8269d1e8e2077d7c72. Please note the userland is N32 ABI, meaning there may be more problems than in O32. But I should've already solved many of them for you. I have been working on Fuloong 2E/2F and Yeeloong's support, particularly N32 ABI system. Firefox is just one example. I have 3 Loongson machines, all donated by lemot

My quest for MIPS N32 firefox could finally come to an end, since I just got it scores the same as X86 firefox . Remember I said it would encounter bus error on a few websites in my last related post . But I didn't plan to look into this issue before dealing with cache aliasing problem. However, since Rayson Ho helped me to locate the exact cause of this issue, I decided to finish it first. The problem is caused by unaligned access of ldc1/sdc1 instruction. These two instructions' operand must be 8 bytes aligned. But when crashing, the operand is only 4 bytes aligned. After some discussion and experimenting, I found a workaround for sina.com.cn crashing problem. Yeah, a padding pointer sounds scary and fragile, but it did work. Before posting any comment to this, please make sure you have read all the emails in that thread. Then Fai Wong reported to me that it still crash in acid3 test . So I took another look. This time the problem happened in a different location, and it i

Finally, I could announce that it is working (tm). I just submitted the patches (together with O32 ABI patch) to upstream. https://bugzilla.mozilla.org/show_bug.cgi?id=482759 This is a big step forward for MIPS N32 GNU/Linux desktop. One thing to note though: It (the N32 one) would encounter bus error on a few websites, e.g. www.sina.com.cn. I will try to find out why later when I have time. For those who are into long stories, please read on: I finally sorted out the font size problem, independently. It turned out that the problem is caused by strict aliasing issue in NSPR (NetScape Portable Runtime). Specifically, when parsing css file, in order to get the font size, PR_strtod() will be used to convert string to floating point value. But because of the strict aliasing issue, certain code in PR_strtod will be optimized out if -fstrict-aliasing is turned on, which is just the case if -O2 is used. And as a result, the floating point value would be wrong， e.g. "1.5" will be con

Pulseaudio depends on libatomic_ops. However, libatomic_ops don't have support for mips. I've created a patch for mips, though only work on 32bit userland. Get it here . Pulseaudio now compiled and installed on my loongson box. Can't use it to play though. The following is some detailed info, if you are interested in. My setup is to use alsa's pulse plugin. I tried aplay, for example: $ aplay /usr/share/sounds/alsa/Front_Right.wav aplay: pulsecore/mutex-posix.c:75: pa_mutex_lock: Assertion `_r == 0' failed. Aborted Before this assertion failed, aplay is stuck on a futex system call. connect(7, {sa_family=AF_FILE, path="/var/run/pulse/native"}, 110) = 0 send(6, "W", 1, MSG_NOSIGNAL) = -1 ENOTSOCK (Socket operation on non-socket) write(6, "W", 1) = 1 gettimeofday({1187375795, 973686}, NULL) = 0 write(6, "W", 1) = 1 futex(0x45dd1c, FUTEX_WAIT, 1, NULL

https://sourceforge.net/tracker/?func=detail&atid=102861&aid=1659465&group_id=2861 This is a mips related patch. I made this patch when I porting Gentoo to loongson. -- Zhang Le, Robert http://r0bertz.blogspot.com http://zh.gentoo-wiki.com http://savannah.nongnu.org/projects/pgubook http://groups.google.com/group/gentoo-china http://groups.google.com/group/szlug

KDE终于装好了，截个图