Re: [PATCH v3 21/31] arm64: 32-bit (compat) applications support
From: Catalin Marinas
Date: Thu Sep 13 2012 - 05:08:30 EST
On Fri, Sep 07, 2012 at 08:47:45PM +0100, Arnd Bergmann wrote:
> On Friday 07 September 2012, Catalin Marinas wrote:
> > From: Will Deacon <will.deacon@xxxxxxx>
> > This patch adds support for 32-bit applications. The vectors page is a
> > binary blob mapped into the application user space at 0xffff0000 (the
> > AArch64 toolchain does not support compilation of AArch32 code). Full
> > compatibility with ARMv7 user space is supported. The use of deprecated
> > ARMv7 functionality (SWP, CP15 barriers) has been disabled by default on
> > AArch64 kernels and unaligned LDM/STM is not supported.
> > Please note that only the ARM 32-bit EABI is supported, so no OABI
> > compatibility.
> > Signed-off-by: Will Deacon <will.deacon@xxxxxxx>
> > Signed-off-by: Catalin Marinas <catalin.marinas@xxxxxxx>
> > Acked-by: Tony Lindgren <tony@xxxxxxxxxxx>
> I guess you haven't had time to turn any of these into architecture
> independent functions as discussed last time?
Here they are. For converting the other architectures, I'll post
separate patches as I don't want to add an extra dependency to the