diff options
| -rw-r--r-- | arch/hexagon/kernel/signal.c | 45 |
1 files changed, 18 insertions, 27 deletions
diff --git a/arch/hexagon/kernel/signal.c b/arch/hexagon/kernel/signal.c index d7c73874b515..6525358630d4 100644 --- a/arch/hexagon/kernel/signal.c +++ b/arch/hexagon/kernel/signal.c @@ -112,20 +112,20 @@ static int restore_sigcontext(struct pt_regs *regs, /* * Setup signal stack frame with siginfo structure */ -static int setup_rt_frame(int signr, struct k_sigaction *ka, siginfo_t *info, - sigset_t *set, struct pt_regs *regs) +static int setup_rt_frame(struct ksignal *ksig, sigset_t *set, + struct pt_regs *regs) { int err = 0; struct rt_sigframe __user *frame; struct hexagon_vdso *vdso = current->mm->context.vdso; - frame = get_sigframe(ka, regs, sizeof(struct rt_sigframe)); + frame = get_sigframe(&ksig->ka, regs, sizeof(struct rt_sigframe)); if (!access_ok(VERIFY_WRITE, frame, sizeof(struct rt_sigframe))) - goto sigsegv; + return -EFAULT; - if (copy_siginfo_to_user(&frame->info, info)) - goto sigsegv; + if (copy_siginfo_to_user(&frame->info, &ksig->info)) + return -EFAULT; /* The on-stack signal trampoline is no longer executed; * however, the libgcc signal frame unwinding code checks for @@ -137,29 +137,26 @@ static int setup_rt_frame(int signr, struct k_sigaction *ka, siginfo_t *info, err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); err |= __save_altstack(&frame->uc.uc_stack, user_stack_pointer(regs)); if (err) - goto sigsegv; + return -EFAULT; /* Load r0/r1 pair with signumber/siginfo pointer... */ regs->r0100 = ((unsigned long long)((unsigned long)&frame->info) << 32) - | (unsigned long long)signr; + | (unsigned long long)ksig->sig; regs->r02 = (unsigned long) &frame->uc; regs->r31 = (unsigned long) vdso->rt_signal_trampoline; pt_psp(regs) = (unsigned long) frame; - pt_set_elr(regs, (unsigned long)ka->sa.sa_handler); + pt_set_elr(regs, (unsigned long)ksig->ka.sa.sa_handler); return 0; - -sigsegv: - force_sigsegv(signr, current); - return -EFAULT; } /* * Setup invocation of signal handler */ -static void handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka, - struct pt_regs *regs) +static void handle_signal(struct ksignal *ksig, struct pt_regs *regs) { + int ret; + /* * If we're handling a signal that aborted a system call, * set up the error return value before adding the signal @@ -173,7 +170,7 @@ static void handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka, regs->r00 = -EINTR; break; case -ERESTARTSYS: - if (!(ka->sa.sa_flags & SA_RESTART)) { + if (!(ksig->ka.sa.sa_flags & SA_RESTART)) { regs->r00 = -EINTR; break; } @@ -193,11 +190,9 @@ static void handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka, * only set up the rt_frame flavor. */ /* If there was an error on setup, no signal was delivered. */ - if (setup_rt_frame(sig, ka, info, sigmask_to_save(), regs) < 0) - return; + ret = setup_rt_frame(ksig, sigmask_to_save(), regs); - signal_delivered(sig, info, ka, regs, - test_thread_flag(TIF_SINGLESTEP)); + signal_setup_done(ret, ksig, test_thread_flag(TIF_SINGLESTEP)); } /* @@ -205,17 +200,13 @@ static void handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka, */ void do_signal(struct pt_regs *regs) { - struct k_sigaction sigact; - siginfo_t info; - int signo; + struct ksignal ksig; if (!user_mode(regs)) return; - signo = get_signal_to_deliver(&info, &sigact, regs, NULL); - - if (signo > 0) { - handle_signal(signo, &info, &sigact, regs); + if (get_signal(&ksig)) { + handle_signal(&ksig, regs); return; } |