diff options
Diffstat (limited to 'arch/sh/kernel/signal.c')
| -rw-r--r-- | arch/sh/kernel/signal.c | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/arch/sh/kernel/signal.c b/arch/sh/kernel/signal.c index 4b11100ae..8751d45f5 100644 --- a/arch/sh/kernel/signal.c +++ b/arch/sh/kernel/signal.c @@ -152,30 +152,36 @@ struct rt_sigframe #if defined(__SH4__) static inline int restore_sigcontext_fpu(struct sigcontext *sc) { - current->used_math = 1; + struct task_struct *tsk = current; + + tsk->used_math = 1; return __copy_from_user(&tsk->thread.fpu.hard, &sc->sc_fpregs[0], - sizeof(long)*(NUM_FPU_REGS*2+2)); + sizeof(long)*(16*2+2)); } static inline int save_sigcontext_fpu(struct sigcontext *sc) { struct task_struct *tsk = current; + unsigned long flags; if (!tsk->used_math) { - sc->owend_fp = 0; + sc->sc_ownedfp = 0; return 0; } - sc->owend_fp = 1; + sc->sc_ownedfp = 1; /* This will cause a "finit" to be triggered by the next attempted FPU operation by the 'current' process. */ tsk->used_math = 0; + save_and_cli(flags); unlazy_fpu(tsk); + restore_flags(flags); + return __copy_to_user(&sc->sc_fpregs[0], &tsk->thread.fpu.hard, - sizeof(long)*(NUM_FPU_REGS*2+2)); + sizeof(long)*(16*2+2)); } #endif @@ -206,7 +212,7 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext *sc, int *r0_p) regs->sr |= SR_FD; /* Release FPU */ clear_fpu(tsk); current->used_math = 0; - __get_user (owned_fp, &context->sc_ownedfp); + __get_user (owned_fp, &sc->sc_ownedfp); if (owned_fp) err |= restore_sigcontext_fpu(sc); } @@ -363,11 +369,11 @@ static void setup_frame(int sig, struct k_sigaction *ka, if (ka->sa.sa_flags & SA_RESTORER) { regs->pr = (unsigned long) ka->sa.sa_restorer; } else { - /* This is : mov #__NR_sigreturn,r0 ; trapa #0 */ + /* This is : mov #__NR_sigreturn,r3 ; trapa #0x10 */ #ifdef __LITTLE_ENDIAN__ - unsigned long code = 0xc300e000 | (__NR_sigreturn); + unsigned long code = 0xc310e300 | (__NR_sigreturn); #else - unsigned long code = 0xe000c300 | (__NR_sigreturn << 16); + unsigned long code = 0xe300c310 | (__NR_sigreturn << 16); #endif regs->pr = (unsigned long) frame->retcode; @@ -437,11 +443,11 @@ static void setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, if (ka->sa.sa_flags & SA_RESTORER) { regs->pr = (unsigned long) ka->sa.sa_restorer; } else { - /* This is : mov #__NR_rt_sigreturn,r0 ; trapa #0 */ + /* This is : mov #__NR_rt_sigreturn,r3 ; trapa #0x10 */ #ifdef __LITTLE_ENDIAN__ - unsigned long code = 0xc300e000 | (__NR_rt_sigreturn); + unsigned long code = 0xc310e300 | (__NR_rt_sigreturn); #else - unsigned long code = 0xe000c300 | (__NR_rt_sigreturn << 16); + unsigned long code = 0xe300c310 | (__NR_rt_sigreturn << 16); #endif regs->pr = (unsigned long) frame->retcode; |