From mboxrd@z Thu Jan 1 00:00:00 1970 From: thomas.petazzoni@free-electrons.com (Thomas Petazzoni) Date: Thu, 26 Apr 2012 14:06:24 +0200 Subject: [Celinux-dev] [Q] TinyLinux project status (resend) In-Reply-To: <4F991FB4.3060107@snapgear.com> References: <4F8E08C6.8080107@am.sony.com> <4F96FD7D.3080402@landley.net> <4F971C0D.1010606@landley.net> <4F977007.3000809@snapgear.com> <4F985B11.9060702@landley.net> <20120425224151.510861ab@skate> <4F988F27.3040202@snapgear.com> <20120426090209.663555b1@skate> <4F991FB4.3060107@snapgear.com> Message-ID: <20120426140624.1db8ee6d@skate> To: kernelnewbies@lists.kernelnewbies.org List-Id: kernelnewbies.lists.kernelnewbies.org Le Thu, 26 Apr 2012 20:13:08 +1000, Greg Ungerer a ?crit : > > I haven't posted it anywhere else because it's a hack to workaround a > > Qemu problem: the 5208 apparently has support for separate supervisor > > and userspace stack pointers (through two different registers), but > > Qemu doesn't emulate that. So I think it's a flaw in Qemu emulation > > rather than a kernel problem, but it was easier for now to workaround > > it by just adding one "select COLDFIRE_SW_A7". > > Ah, ok. I only put the dual stack pointer support in a year or 2 back. > And it is only supported on the more modern ColdFire's, guess the QEMU > support is for the simpler parts :-) Well, either Qemu pretends to emulate a 5208 and it should support the dual stack pointer thing, or it shouldn't pretend to emulate a 5208. Am I correct in my understanding is that the 5208 hardware does support dual stack pointers? Best regards, Thomas -- Thomas Petazzoni, Free Electrons Kernel, drivers, real-time and embedded Linux development, consulting, training and support. http://free-electrons.com