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Subject[PATCH 1/4] x86: signal_32: do save_i387_xstate() at get_sigframe()
From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>

move calling save_i387_xstate() into get_sigframe() from setup_sigcontext()
like 64bit.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
---
arch/x86/kernel/signal_32.c | 8 +++-----
1 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kernel/signal_32.c b/arch/x86/kernel/signal_32.c
index a0efc1b..6a05c74 100644
--- a/arch/x86/kernel/signal_32.c
+++ b/arch/x86/kernel/signal_32.c
@@ -303,11 +303,7 @@ setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate,
err |= __put_user(regs->sp, &sc->sp_at_signal);
err |= __put_user(regs->ss, (unsigned int __user *)&sc->ss);

- tmp = save_i387_xstate(fpstate);
- if (tmp < 0)
- err = 1;
- else
- err |= __put_user(tmp ? fpstate : NULL, &sc->fpstate);
+ err |= __put_user(fpstate, &sc->fpstate);

/* non-iBCS2 extensions.. */
err |= __put_user(mask, &sc->oldmask);
@@ -350,6 +346,8 @@ get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size,
if (used_math()) {
sp = sp - sig_xstate_size;
*fpstate = (struct _fpstate *) sp;
+ if (save_i387_xstate(*fpstate) < 0)
+ return (void __user *)-1L;
}

sp -= frame_size;
--
1.5.6


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