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| # 08:20:34 | daggs- | y_morin: hello :) |
| # 08:20:38 | daggs- | what's up? |
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| # 08:41:48 | y_morin | daggs-: heya! |
| # 08:47:57 | daggs- | what's up? |
| # 08:49:58 | y_morin | All's good... |
| # 08:50:01 | y_morin | You? |
| # 08:50:24 | daggs- | ok, working my ass :) |
| # 08:51:01 | daggs- | I've wanted to ask, is there a way to create a x86_64 cross tool that can compile 32 bit programs using the -m32 switch? |
| # 08:51:33 | y_morin | daggs-: yes, it's possible, but not with crosstool-NG. |
| # 08:51:46 | y_morin | crosstool-NG does not support building multi-lib toolchains. |
| # 08:53:13 | daggs- | I see, what is missing in ct-ng to achieve that? |
| # 08:53:31 | y_morin | Probably a lot.... |
| # 08:53:55 | y_morin | The issue is that, for one, I do not fully understand how multi-lib works in gcc |
| # 08:55:00 | y_morin | Then, once multi-lib is enabled, we need to query gcc for the supported variants |
| # 08:55:20 | y_morin | And then, we need to build the C library for each variant |
| # 08:55:37 | daggs- | I see |
| # 08:56:00 | y_morin | This might turn to be quite complex, especially for uClibc that has a vriant selection in its menuconfig |
| # 08:56:20 | y_morin | (Although, this has been removed for ARM in the uClibc git tree, now!) |
| # 08:57:28 | daggs- | multilib? |
| # 09:05:05 | daggs- | any idea why latest mercurial src tried to get binutils-2.21.1a and not binutils-2.21.1? |
| # 09:10:33 | y_morin | daggs-: because the tarballs were renamed on the ftp site. |
| # 09:11:56 | y_morin | daggs-: daggs-: http://sourceware.org/ml/binutils/2011-09/msg00000.html |
| # 09:16:54 | daggs- | ok, then there is a problem, ct-ng is trying to get ftp://ftp.gnu.org/gnu/binutils/binutils-2.21.1a.tar.lzma but there is no such file |
| # 09:18:12 | daggs- | only tar.bz2 |
| # 09:18:14 | daggs- | for now |
| # 09:42:15 | y_morin | daggs-: crosstool-NG tries all the extension in turn: .tar.xz .tar.lzma .tar.bz2 .tar.gz .tgz .tar |
| # 09:43:17 | y_morin | daggs-: do you by chance happen to be behinf a proxy ? |
| # 09:43:22 | y_morin | *behind |
| # 10:15:41 | daggs- | nope, I'm trying again |
| # 10:16:23 | daggs- | seems to be working |
| # 11:58:20 | daggs- | y_morin: I'm trying to build a static ct with gcc 4.6.0 for x86 and I keep getting this: [ALL ] make[3]: *** No rule to make target `/u/dagg/crosstool/build/i386-vSMP-linux-gnu/build/build-libc/nptl/pthread_spin_trylock.o', needed by `lib-noranlib'. Stop. |
| # 11:58:24 | daggs- | how can I fix this? |
| # 11:59:02 | y_morin | daggs-: pastebin your .config. |
| # 12:07:56 | y_morin | KAeL: Heya! Is that you posting the buildroot+crosstool-NG patches on the buildroot list? |
| # 12:17:43 | KAeL | my coworker |
| # 12:18:06 | KAeL | I told him to post the ctng patch on the ctng ml |
| # 12:19:07 | daggs- | y_morin: http://pastebin.com/n9qH5RHK |
| # 12:48:46 | kos_tom | KAeL: it'd be better to post patches with git send-email to ease review. |
| # 12:49:55 | y_morin | daggs-: the default fox x86 is to target a i386 CPU, but that one is too old to build NPTL for. You need at least a pentium for NPTL, or if you really need to run on i386, you have to use LinuxThreads. |
| # 12:51:00 | y_morin | KAeL: or for crosstool-NG, the Hg patchbomb: hg email --outgoing --to crossgcc@sourceware.org --intro |
| # 12:51:08 | y_morin | kos_tom: :-p |
| # 12:53:31 | kos_tom | y_morin: I think you could put i486 or i586 as the default x86 machine. |
| # 12:53:41 | kos_tom | y_morin: that allows to build NPTL, and seems like a sane default these days. |
| # 12:56:34 | daggs- | y_morin: I see I need i686, where can I set it |
| # 12:56:36 | daggs- | ? |
| # 13:02:48 | KAeL | I'm going to read what he has sent to the buildroot ml... :) |
| # 13:04:50 | daggs- | found it |
| # 13:07:37 | y_morin | kos_tom: yes, i586 seems a sane value. i486 also lacks the proper instructions for NPTL, so i586 is better. |
| # 13:11:19 | y_morin | But maybe I remember wrong, and i486 is sufficient... |
| # 13:16:22 | kos_tom | I *think* i486 is sufficient, but I might be wrong as well, my x86 knowledge is blury. |
| # 13:23:52 | y_morin | kos_tom: yes, i486 seems enough, from what I found on-line. |
| # 13:25:43 | daggs- | y_morin: is there a minimal glibc needed for kernel 2.6.32.46 and gcc 4.6.0 to be compiled for i686? |
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| # 15:38:33 | sh4rm4 | daggs-, you could try https://github.com/pikhq/musl-cross-compiler |
| # 15:38:54 | sh4rm4 | builds a i686-musl-gcc-4.2 |
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