From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Petazzoni Date: Mon, 22 Apr 2013 17:57:55 +0200 Subject: [Buildroot] [PATCH 7/7] arc: Make sure that libgcc doesn't get included when it doesn't exist yet In-Reply-To: <1366630651-6857-8-git-send-email-mjonker@synopsys.com> References: <1366630651-6857-1-git-send-email-mjonker@synopsys.com> <1366630651-6857-8-git-send-email-mjonker@synopsys.com> Message-ID: <20130422175755.67229d29@skate> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Dear Mischa Jonker, On Mon, 22 Apr 2013 13:37:31 +0200, Mischa Jonker wrote: > For ARC, libgcc is always included, even when -nostdlib is given. This is > related to some small pieces of code that are not always generated by the > compiler; a call to libgcc is used in those cases instead. > > During the initial stages of building the toolchain, this is a problem, as > libgcc does not exist yet. The ARC compiler supports -really-nostdlib to > override the default behavior. > > Signed-off-by: Mischa Jonker > --- > toolchain/uClibc/uclibc.mk | 10 ++++++++-- > 1 files changed, 8 insertions(+), 2 deletions(-) > > diff --git a/toolchain/uClibc/uclibc.mk b/toolchain/uClibc/uclibc.mk > index 1629e76..14083a9 100644 > --- a/toolchain/uClibc/uclibc.mk > +++ b/toolchain/uClibc/uclibc.mk > @@ -404,6 +404,12 @@ ifeq ($(BR2_CCACHE),y) > $(UCLIBC_DIR)/.config: | host-ccache > endif > > +ifeq ($(BR2_arc)$(BR2_arceb),) > +REALLY_NOSTDLIB= > +else > +REALLY_NOSTDLIB=-really-nostdlib > +endif Could you copy/paste parts of your commit log as a comment above this piece of code? This would make it easier to understand. Also, you could write it this way: ifeq ($(BR2_arc)$(BR2_arceb),y) REALLY_NOSTDLIB=-really-nostdlib endif Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com