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Re: crosstool

From: Ronald Landheer-Cieslak <ronald at landheer dot com>
To: Daniel Kegel <dank at kegel dot com>
Cc: Ralph Kruse <sound at kruse-welt dot de>, crossgcc <crossgcc at sources dot redhat dot com>
Date: Wed, 01 Dec 2004 13:35:35 -0500
Subject: Re: crosstool
References: <003801c4d660$4ba6e5d0$6400a8c0@p43200> <41ABD4C5.1050703@kegel.com> <41ACC39E.1070302@kegel.com>

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Daniel Kegel wrote:

| Dan Kegel wrote:
|
|>> I tried to setup a cross toolchain with latest "cygwin" and
|>> "crosstool-0.28-rc37" for developing on a Win2K computer. When
|>> I enable PARALLELMFLAGS="-j2" on my Pentium 4  machine
|>> (hyperthreading enabled), "make" aborts after a while with
|>> following messages:
|>>
|>> ... echo '' >
|>> /crosstool/crosstool-0.28-rc37/build/i386-linux/gcc-3.3.4-glibc-2.3.3/
|>>
|>>
|>> build-glibc/iconv/stamp.oSTT make[2]: *** No rule to make
|>> target `/crosstool/crosstool-0.28-rc37/build/i386-l
|>> inux/gcc-3.3.4-glibc-2.3.3/build-glibc/locale/stamp.oST',
|>> needed by
|>>
`/crosstool/crosstool-0.28-rc37/build/i386-linux/gcc-3.3.4-glibc-2.3.3/build-glibc/libc_nonshared.a'.
|>>  Stop.
|>
|>
|>
|>> Any idea what went wrong? "make" running only one job at a time
|>>  works fine.
|>
|>
|> Heavens!  It really said stamp.oSTT?  That sounds like a bug in
|> the patch, or maybe the log file stepping on itself. Can you make
|> sure a search the glibc Makefiles for the string oSTT fails?
|
|
| (I mean the ones left in the build directory after a failed run.)
|
|> It should not occur.
|>
|> I guess there might be a problem in the glibc Makefiles with
|> respect to parallel building.  If you can reproduce this with
|> glibc from cvs, it might be worth reporting to libc-alpha.
|
|
| It also might be a thread safety or hyperthreading bug with cygwin.
|  - Dan
|
| ------ Want more information?  See the CrossGCC FAQ,
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|
For the record: there are known issues with Hyperthreading on Cygwin
which will not be fixed until cgf has a hyperthreading machine:
http://www.cygwin.com/ml/cygwin/2004-09/msg00082.html
http://www.cygwin.com/ml/cygwin/2004-09/msg00091.html

rlc

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