Messages in this thread | | | From | Andreas Schwab <> | Subject | Re: [PATCH v6 17/21] arm64: ilp32: introduce ilp32-specific handlers for sigframe | Date | Mon, 29 Feb 2016 09:27:43 +0100 |
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Yury Norov <ynorov@caviumnetworks.com> writes:
> diff --git a/arch/arm64/kernel/signal_ilp32.c b/arch/arm64/kernel/signal_ilp32.c > new file mode 100644 > index 0000000..b635a21 > --- /dev/null > +++ b/arch/arm64/kernel/signal_ilp32.c > @@ -0,0 +1,128 @@ > +/* > + * Based on arch/arm/kernel/signal.c > + * > + * Copyright (C) 1995-2009 Russell King > + * Copyright (C) 2012 ARM Ltd. > + * Copyright (C) 2016 Cavium Networks. > + * Yury Norov <ynorov@caviumnetworks.com> > + * > + * This program is free software; you can redistribute it and/or modify > + * it under the terms of the GNU General Public License version 2 as > + * published by the Free Software Foundation. > + * > + * This program is distributed in the hope that it will be useful, > + * but WITHOUT ANY WARRANTY; without even the implied warranty of > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the > + * GNU General Public License for more details. > + * > + * You should have received a copy of the GNU General Public License > + * along with this program. If not, see <http://www.gnu.org/licenses/>. > + */ > + > +#include <linux/compat.h> > +#include <linux/signal.h> > +#include <linux/syscalls.h> > +#include <linux/ratelimit.h> > + > +#include <asm/esr.h> > +#include <asm/fpsimd.h> > +#include <asm/signal32_common.h> > +#include <asm/signal_common.h> > +#include <asm/uaccess.h> > +#include <asm/unistd.h> > +#include <asm/ucontext.h> > + > +struct ilp32_rt_sigframe { > + struct compat_siginfo info; > + struct sigframe sig; > +}; > + > +asmlinkage int ilp32_sys_rt_sigreturn(struct pt_regs *regs)
This function must be defined to return long, lest you truncate the return value of the interrupted syscall.
Andreas.
-- Andreas Schwab, SUSE Labs, schwab@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different."
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