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Hey Luca, |
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Luca Barbato <lu_zero@g.o> writes: |
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> On 07/01/2013 04:48 PM, heroxbd wrote: |
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> |
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>> Gentoo on Android is about running Gentoo natively in a directory prefix |
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>> on Android devices[1] in parallel with native Android, mentored by Luca. |
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>> |
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>> Progress report for the past 3 days, |
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>> |
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>> 1. gcc specs hack is not that interesting as it first looks. |
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>> - parsing or generating specs script is no fun. |
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>> The best parser/generator is gcc itself |
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>> - appending simple specs (suches -dynamic-linker=/xx/xx.so) feel |
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>> not clever, appending --with-spec to configure either. |
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>> |
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>> Therefore, I decide not to use specs hack as the main building |
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>> block. At the same time, it can be handy to do manual tuning |
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>> with it. |
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> |
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> That must be reconsidered later to understand what's the problem and if |
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> upstream can help on that. |
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Got it. |
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>> Relying on binutils wrapper is no good either. The solution |
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>> finally falls on a mixed one between sysroot and native paths |
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>> methods (ref. table in [2]). Where I make use of eprefixify of |
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>> prefix.eclass to modify location of dynamic linker for *run |
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>> time* and sysroot for *compile time*. |
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> |
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> It isn't perfect, but as long it gives result I can live with that. |
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The perfect solution is to use --with-runtime-root-prefix contributed by |
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Google[1][2], but not enough interest was gathered[3]. |
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>> 2. Prefix/libc armhf works rock solid. It is now being "emerge -e |
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>> @world" with the help of many distcc cross compilers. I have to |
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>> leave my cell phone home for a constant power supply and |
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>> ethernet connection (yes! USB ethernet adapter) though. |
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> |
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> Make sure it is near a heatsink (AC or such). |
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The sensor says it's less than 40 degree C ;) |
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>> The bug is related to VDSO. A full description of the problem is |
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>> on stackoverflow[3]. I'd be very appreciated for any hints. |
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> |
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> uclibc or musl might or might not help? |
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Not sure, I'm going to try out uclibc/musl anyway. |
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UPDATE: asked for help on glibc mailing list |
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http://article.gmane.org/gmane.comp.lib.glibc.user/1903 |
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Cheers, |
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Benda |
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1. http://gcc.gnu.org/ml/gcc-patches/2011-01/msg01904.html |
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2. http://gcc.gnu.org/ml/gcc-help/2012-03/msg00146.html |
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3. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52556 |
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