Messages in this thread | | | Date | Mon, 27 Apr 2009 21:43:06 +1000 | Subject | Re: [PATCH 23/30] microblaze_mmu_v1: Enable fork syscall for MMU and add fork as vfork for noMMU | From | John Williams <> |
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On Mon, Apr 27, 2009 at 6:32 PM, <monstr@monstr.eu> wrote: > From: Michal Simek <monstr@monstr.eu> > > Signed-off-by: Michal Simek <monstr@monstr.eu> > --- > arch/microblaze/kernel/entry-nommu.S | 3 ++- > arch/microblaze/kernel/syscall_table.S | 2 +- > 2 files changed, 3 insertions(+), 2 deletions(-) > > diff --git a/arch/microblaze/kernel/entry-nommu.S b/arch/microblaze/kernel/entry-nommu.S > index f24b126..89f978a 100644 > --- a/arch/microblaze/kernel/entry-nommu.S > +++ b/arch/microblaze/kernel/entry-nommu.S > @@ -10,7 +10,7 @@ > > #include <linux/linkage.h> > #include <asm/thread_info.h> > -#include <asm/errno.h> > +#include <linux/errno.h> > #include <asm/entry.h> > #include <asm/asm-offsets.h> > #include <asm/registers.h> > @@ -551,6 +551,7 @@ no_work_pending: > rtid r14, 0 > nop > > +sys_fork_wrapper: > sys_vfork_wrapper: > brid sys_vfork > addk r5, r1, r0
NACK! If only it was that easy :)
On noMMU we cannot just silently call vfork() if the application tries to fork() - you have to return -ENOSYS (or is there a better one?). This will just require a small sys_fork_wrapper in entry-nommu.S.
John -- John Williams, PhD, B.Eng, B.IT PetaLogix - Linux Solutions for a Reconfigurable World w: www.petalogix.com p: +61-7-30090663 f: +61-7-30090663 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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