x86, xsave: save/restore the extended state context in sigframe

[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / signal_64.c

diff --git a/arch/x86/kernel/signal_64.c b/arch/x86/kernel/signal_64.c
index ddf6123a55c89ab6ea0ab0550bf830bdb90c8349..2621b98f5bf6635a5713bef4b0f3bbaf65ba4e41 100644 (file)
--- a/arch/x86/kernel/signal_64.c
+++ b/arch/x86/kernel/signal_64.c
@@ -192,7 +192,7 @@ get_stack(struct k_sigaction *ka, struct pt_regs *regs, unsigned long size)
                        sp = current->sas_ss_sp + current->sas_ss_size;
        }
 
-       return (void __user *)round_down(sp - size, 16);
+       return (void __user *)round_down(sp - size, 64);
 }
 
 static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
@@ -226,7 +226,10 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
        }
                
        /* Create the ucontext.  */
-       err |= __put_user(0, &frame->uc.uc_flags);
+       if (cpu_has_xsave)
+               err |= __put_user(UC_FP_XSTATE, &frame->uc.uc_flags);
+       else
+               err |= __put_user(0, &frame->uc.uc_flags);
        err |= __put_user(0, &frame->uc.uc_link);
        err |= __put_user(me->sas_ss_sp, &frame->uc.uc_stack.ss_sp);
        err |= __put_user(sas_ss_flags(regs->sp),