From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH 3/3] package/multicat: fix build with external Blackfin uClibc toolchain
Date: Sun, 20 Mar 2016 18:13:47 +0100 [thread overview]
Message-ID: <20160320181347.492b3725@free-electrons.com> (raw)
In-Reply-To: <1458493787.1998.14.camel@embedded.rocks>
Hello,
On Sun, 20 Mar 2016 18:09:47 +0100, J?rg Krause wrote:
> You're right! It has?__UCLIBC_HAS_ADVANCED_REALTIME__, but it does not
> define?__UCLIBC_HAS_THREADS_NATIVE__ and clock_nanosleep() is only
> defined if both are set in <time.h>:
>
> #??ifdef __UCLIBC_HAS_THREADS_NATIVE__
> #???if defined __USE_XOPEN2K && defined
> __UCLIBC_HAS_ADVANCED_REALTIME__
Ah, makes sense!
> I'll prepare a v2 with something like that testing for __UCLIBC__,
> __UCLIBC_HAS_THREADS_NATIVE__ and __UCLIBC_HAS_ADVANCED_REALTIME__.
Sounds good.
It would of course be better if they were using autoconf, to be able to
add a configure script, but well...
> My guess is that uClibc was build with __LINUXTHREADS_OLD__ enabled,
> but the toolchain ships libpthread instead. However, I am not a
> toolchain expert.
Regardless of whether you have linuxthreads/old, linuxthreads or NPTL,
there is always a library named libpthread. It's the internals of the
library and how it interacts with the kernel that completely differs
between the different implementations.
Best regards,
Thomas
--
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
next prev parent reply other threads:[~2016-03-20 17:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-19 23:41 [Buildroot] [PATCH 1/3] package/multicat: add patch to fix static build Jörg Krause
2016-03-19 23:41 ` [Buildroot] [PATCH 2/3] package/multicat: add patch to fix musl build Jörg Krause
2016-03-20 14:11 ` Thomas Petazzoni
2016-03-19 23:41 ` [Buildroot] [PATCH 3/3] package/multicat: fix build with external Blackfin uClibc toolchain Jörg Krause
2016-03-20 14:22 ` Thomas Petazzoni
2016-03-20 17:09 ` Jörg Krause
2016-03-20 17:13 ` Thomas Petazzoni [this message]
2016-03-20 14:09 ` [Buildroot] [PATCH 1/3] package/multicat: add patch to fix static build Thomas Petazzoni
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