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| # 02:30:56 | Tenacious-Techhu | Anyone here know if crosstool-ng works under OS X yet? |
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| # 17:59:34 | snappy | y_morin|away: wen you get back, mind assisting me. When I'm compiling using armv7 as target cpu, libgcc fails and says "cc1: target CPU does not support ARM mode" |
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| # 20:35:50 | y_morin | snappy: put your complete build.log file on-line, please. |
| # 20:36:05 | snappy | y_morin: sure |
| # 20:39:42 | snappy | It's a little large: http://lastninja.net/~naveen/ct/ |
| # 20:39:50 | snappy | I'm using ct-ng 1.12.0 |
| # 20:41:34 | y_morin | snappy: getting log file... |
| # 20:45:38 | snappy | i also put up the config.log that's referenced in the build.log just incase, but i'm not sure where the problem stems |
| # 20:45:48 | snappy | im starting to think versions of gcc/binutils/etc. |
| # 20:47:36 | y_morin | snappy: ah, config.log, that's what I was gonna ask for after reading the build.log |
| # 20:52:51 | y_morin | snappy: I am afraid gcc-4.4 is too old for Neon. Also, crosstool-NG does not (yet?) fully supports HW floating point such as Neon. There is work in this area (a very recent post on the list), but there is no guarantee at all. Pure soft float is what has been the most thoroughly tested so far. |
| # 20:54:07 | y_morin | snappy: also, you have a bunch of experimental options. You should first try without experimental, until you get a working combination. *Then* you can try adding experimental features, such as interworking, neon FPU, and so on... |
| # 20:54:20 | y_morin | snappy: I'll try here with more recent versions... |
| # 20:55:12 | snappy | ah ok; i was using configs supplied by xvilka, but tweaekd them a little (he was using it for OMAP) |
| # 20:55:27 | snappy | but no i have some stuff to try, better than hitting my head against the wall |
| # 20:56:28 | y_morin | snappy: it's easier to start from a working state, and then iterate one thing at a time. Yes, it is time consuming. Yes, having a fast PC or a good espresso machine helps! :-) |
| # 20:57:44 | snappy | so i think this machine im working on actually has 8 cores, but i haven't checked if ct-ng has any support for parallelism (or invoking make -j *when it works*) |
| # 20:58:42 | y_morin | snappy: either use the menuconfig option CT_PARALLEL_JOBS, or use: ct-ng build.NB_PROCS (eg. for make -j12: ct-ng build.12) |
| # 20:59:00 | snappy | ah nice |
| # 20:59:11 | y_morin | snappy: I always use NB_PROCS = 1.5*NB_CPUS |
| # 20:59:24 | y_morin | snappy: so I use: ct-ng build.18 |
| # 20:59:49 | snappy | oh that's awesome. |
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| # 21:40:56 | y_morin | snappy: 'armv7' is wrong. The real value is 'armv-a' |
| # 21:41:07 | y_morin | snappy: but then it breaks in uClibc |
| # 21:42:28 | y_morin | snappy: OK, found the uClibc error. 'gold' is not ready for prime-time, it seems... :-( |
| # 21:46:13 | snappy | oh armv-a? hm/ |
| # 21:46:24 | snappy | damn, forgot that cpu name again |
| # 21:46:42 | y_morin | snappy: ouch... 'armv7-a'... v_7_! |
| # 21:46:55 | snappy | one sec, let me link you to a site on arm |
| # 21:47:02 | snappy | in oticed that ARMV7 != ARMV7-A |
| # 21:48:03 | y_morin | snappy: I am only speaking gcc values here. I don't know/care how ARM calls these, but gcc seems to imply that 'armv7' is thumb only, while armv7-a is arm |
| # 21:48:20 | snappy | hm, i just found something interesting on android website though |
| # 21:48:22 | snappy | ARMv5TE machine code will run on all ARM-based Android devices. ARMv7-A will run only on devices such as the Verizon Droid or Google Nexus One that have a compatible CPU. The main difference between the two instruction sets is that ARMv7-A supports hardware FPU, Thumb-2, and NEON instructions. You can target either or both of the instruction sets â ARMv5TE is the default, but switching to ARMv7-A is as easy as adding a single line to the applica |
| # 21:48:29 | snappy | (sorry if there's a cutoff) |
| # 21:48:30 | snappy | http://developer.android.com/sdk/ndk/overview.html |
| # 21:48:36 | snappy | basically i could target ARMv5TE it seems like |
| # 21:49:47 | y_morin | snappy: best bet is to start off with armv5te, indeed. But if your real processor is better, then you could gradually upgrade to armv7-a... |
| # 21:50:02 | snappy | sounds like a plan, i tihnk i'll try this for now |
| # 21:50:16 | y_morin | snappy: I'm reaading on the floating point modes on ARM... What a messs... http://wiki.debian.org/ArmHardFloatPort/VfpComparison |
| # 21:50:51 | snappy | heh wow, look spretty bad |
| # 21:51:03 | y_morin | snappy: "The combination of -mfpu=vfp and -mfloat-abi=hard is not available in FSF GCC 4.4, but the CodeSourcery 2009q1 compiler (and later, current release is 2010q1) supports it as does FSF GCC 4.5. " |
| # 21:51:47 | y_morin | snappy: ermmm. I somewhat interpreted this as 'neon' in place of 'vfp'... |
| # 21:52:18 | y_morin | but I remember that neon also requires gcc-4.5+ |
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| # 21:55:49 | Tenacious-Techhu | Hello. Anyone here today? |
| # 21:56:28 | Tenacious-Techhu | Can anyone tell me about the status of crosstool-ng on OS X? |
| # 21:59:15 | snappy | y_morin: thanks, going to try a lot of fiddling around now |
| # 21:59:56 | y_morin | snappy: I have a .config that builds a cortex-a8 optimised toolchain. Will post... |
| # 22:00:41 | y_morin | snappy: http://code.bulix.org/yd982z-80497 |
| # 22:02:09 | kos_tom | y_morin, hi! |
| # 22:02:19 | snappy | thanks |
| # 22:02:24 | y_morin | kos_tom: hello there! :-) |
| # 22:02:28 | kos_tom | y_morin, during my holidays, I have worked on sh2a support in CT-NG. I made some progress but still there are some issues. |
| # 22:02:34 | y_morin | kos_tom: how's it been |
| # 22:02:35 | kos_tom | y_morin, are you interested in the current status of the work ? |
| # 22:02:50 | y_morin | kos_tom: sure! |
| # 22:03:24 | kos_tom | ok, I initially didn't use mercurial queues. After a bit of fighting, I manage to generate patches for the work I did, but I don't know how to import those patches into a mercurial queue |
| # 22:03:53 | y_morin | kos_tom: hg qimport *.patch |
| # 22:04:54 | y_morin | kos_tom: hmmm better be name-ordered (eg. 000-blabla.patch 001-boo.patch...) |
| # 22:05:29 | kos_tom | y_morin, ok, will try, thanks! |
| # 22:05:45 | y_morin | kos_tom: cheers! |
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| # 22:51:26 | Tenacious-Techhu | Can someone please tell me about the status of crosstool-ng on OS X? |
| # 22:59:52 | y_morin | Tenacious-Techhu: 1.12.1 should be pretty OK. |
| # 23:00:17 | y_morin | Tenacious-Techhu: you /may/ get a few issues in some corner-cases, but all-in-all, it works. |
| # 23:03:44 | Tenacious-Techhu | Does it install easily? The main web page seems to suggest it has some issues. |
| # 23:03:52 | Tenacious-Techhu | Or is that out of date? |
| # 23:04:30 | y_morin | Tenacious-Techhu: the site is out-of-date. Badly, at that... |
| # 23:05:10 | Tenacious-Techhu | Is there a helpful install guide or something? |
| # 23:05:31 | y_morin | Tenacious-Techhu: http://crosstool-ng.org/#download_and_usage ;-) |
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