From 1270cff147a39f7da5b25225dca6ca3132ca6130 Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Sun, 6 Oct 2013 23:06:08 +0200 Subject: blackfin: Use get_signal() signal_setup_done() Use the more generic functions get_signal() signal_setup_done() for signal delivery. Signed-off-by: Richard Weinberger Acked-by: Steven Miao --- arch/blackfin/kernel/signal.c | 39 +++++++++++++++++---------------------- 1 file changed, 17 insertions(+), 22 deletions(-) (limited to 'arch/blackfin/kernel') diff --git a/arch/blackfin/kernel/signal.c b/arch/blackfin/kernel/signal.c index b022af6c48f8..1389cd3b74e3 100644 --- a/arch/blackfin/kernel/signal.c +++ b/arch/blackfin/kernel/signal.c @@ -152,23 +152,22 @@ static inline void *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, } static int -setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t * info, - sigset_t * set, struct pt_regs *regs) +setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) { struct rt_sigframe *frame; int err = 0; - frame = get_sigframe(ka, regs, sizeof(*frame)); + frame = get_sigframe(&ksig->ka, regs, sizeof(*frame)); err |= __put_user((current_thread_info()->exec_domain && current_thread_info()->exec_domain->signal_invmap - && sig < 32 + && ksig->sig < 32 ? current_thread_info()->exec_domain-> - signal_invmap[sig] : sig), &frame->sig); + signal_invmap[ksig->sig] : ksig->sig), &frame->sig); err |= __put_user(&frame->info, &frame->pinfo); err |= __put_user(&frame->uc, &frame->puc); - err |= copy_siginfo_to_user(&frame->info, info); + err |= copy_siginfo_to_user(&frame->info, &ksig->info); /* Create the ucontext. */ err |= __put_user(0, &frame->uc.uc_flags); @@ -183,7 +182,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t * info, /* Set up registers for signal handler */ if (current->personality & FDPIC_FUNCPTRS) { struct fdpic_func_descriptor __user *funcptr = - (struct fdpic_func_descriptor *) ka->sa.sa_handler; + (struct fdpic_func_descriptor *) ksig->ka.sa.sa_handler; u32 pc, p3; err |= __get_user(pc, &funcptr->text); err |= __get_user(p3, &funcptr->GOT); @@ -192,7 +191,7 @@ setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t * info, regs->pc = pc; regs->p3 = p3; } else - regs->pc = (unsigned long)ka->sa.sa_handler; + regs->pc = (unsigned long)ksig->ka.sa.sa_handler; wrusp((unsigned long)frame); regs->rets = SIGRETURN_STUB; @@ -237,20 +236,19 @@ handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler) * OK, we're invoking a handler */ static void -handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka, - struct pt_regs *regs) +handle_signal(struct ksignal *ksig, struct pt_regs *regs) { + int ret; + /* are we from a system call? to see pt_regs->orig_p0 */ if (regs->orig_p0 >= 0) /* If so, check system call restarting.. */ - handle_restart(regs, ka, 1); + handle_restart(regs, &ksig->ka, 1); /* set up the stack frame */ - if (setup_rt_frame(sig, ka, info, sigmask_to_save(), regs) < 0) - force_sigsegv(sig, current); - else - signal_delivered(sig, info, ka, regs, - test_thread_flag(TIF_SINGLESTEP)); + ret = setup_rt_frame(ksig, sigmask_to_save(), regs); + + signal_setup_done(ret, ksig, test_thread_flag(TIF_SINGLESTEP)); } /* @@ -264,16 +262,13 @@ handle_signal(int sig, siginfo_t *info, struct k_sigaction *ka, */ asmlinkage void do_signal(struct pt_regs *regs) { - siginfo_t info; - int signr; - struct k_sigaction ka; + struct ksignal ksig; current->thread.esp0 = (unsigned long)regs; - signr = get_signal_to_deliver(&info, &ka, regs, NULL); - if (signr > 0) { + if (get_signal(&ksig)) { /* Whee! Actually deliver the signal. */ - handle_signal(signr, &info, &ka, regs); + handle_signal(&ksig, regs); return; } -- cgit From e90670a9629a68c1bf5bbb59d0077684f22a5cb9 Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Wed, 5 Mar 2014 13:38:04 +0100 Subject: blackfin: Use sigsp() Use sigsp() instead of the open coded variant. Signed-off-by: Richard Weinberger Acked-by: Steven Miao --- arch/blackfin/kernel/signal.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) (limited to 'arch/blackfin/kernel') diff --git a/arch/blackfin/kernel/signal.c b/arch/blackfin/kernel/signal.c index 1389cd3b74e3..ef275571d885 100644 --- a/arch/blackfin/kernel/signal.c +++ b/arch/blackfin/kernel/signal.c @@ -135,19 +135,11 @@ static inline int rt_setup_sigcontext(struct sigcontext *sc, struct pt_regs *reg return err; } -static inline void *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, +static inline void *get_sigframe(struct ksignal *ksig, size_t frame_size) { - unsigned long usp; + unsigned long usp = sigsp(rdusp(), ksig); - /* Default to using normal stack. */ - usp = rdusp(); - - /* This is the X/Open sanctioned signal stack switching. */ - if (ka->sa.sa_flags & SA_ONSTACK) { - if (!on_sig_stack(usp)) - usp = current->sas_ss_sp + current->sas_ss_size; - } return (void *)((usp - frame_size) & -8UL); } @@ -157,7 +149,7 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) struct rt_sigframe *frame; int err = 0; - frame = get_sigframe(&ksig->ka, regs, sizeof(*frame)); + frame = get_sigframe(ksig, sizeof(*frame)); err |= __put_user((current_thread_info()->exec_domain && current_thread_info()->exec_domain->signal_invmap -- cgit