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Subject[PATCH 3/4] x86: signal_64: setup fpstate in setup_sigcontext()
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>

set fpstate field of signal context at setup_sigcontext().

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
---
arch/x86/kernel/signal_64.c | 10 ++++++----
1 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index cfbb60a..97d26fa 100644
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -159,8 +159,9 @@ asmlinkage long sys_rt_sigreturn(struct pt_regs *regs)
*/

static inline int
-setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
- unsigned long mask, struct task_struct *me)
+setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,
+ struct pt_regs *regs,
+ unsigned long mask, struct task_struct *me)
{
int err = 0;

@@ -188,6 +189,7 @@ setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
err |= __put_user(me->thread.error_code, &sc->err);
err |= __put_user(regs->ip, &sc->ip);
err |= __put_user(regs->flags, &sc->flags);
+ err |= __put_user(fpstate, &sc->fpstate);
err |= __put_user(mask, &sc->oldmask);
err |= __put_user(me->thread.cr2, &sc->cr2);

@@ -249,8 +251,8 @@ static int __setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
err |= __put_user(sas_ss_flags(regs->sp),
&frame->uc.uc_stack.ss_flags);
err |= __put_user(me->sas_ss_size, &frame->uc.uc_stack.ss_size);
- err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0], me);
- err |= __put_user(fp, &frame->uc.uc_mcontext.fpstate);
+ err |= setup_sigcontext(&frame->uc.uc_mcontext, fp,
+ regs, set->sig[0], me);
err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));

/* Set up to return from userspace. If provided, use a stub
--
1.5.6


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