diff options
author | Richard Weinberger <richard@nod.at> | 2013-10-07 14:51:14 +0200 |
---|---|---|
committer | Richard Weinberger <richard@sigma-star.at> | 2014-08-06 13:03:19 +0200 |
commit | b46e848768acc458ba94feef162b8901592dbb9c (patch) | |
tree | d1e9b3be59fc9fa539304f692e184cafd5f6b5f0 /arch/sh/kernel/signal_32.c | |
parent | 2bb12b773feb3e792145961e57ab356e6134d4a5 (diff) | |
download | op-kernel-dev-b46e848768acc458ba94feef162b8901592dbb9c.zip op-kernel-dev-b46e848768acc458ba94feef162b8901592dbb9c.tar.gz |
sh: Use get_signal() signal_setup_done()
Use the more generic functions get_signal() signal_setup_done()
for signal delivery.
Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/sh/kernel/signal_32.c')
-rw-r--r-- | arch/sh/kernel/signal_32.c | 79 |
1 files changed, 32 insertions, 47 deletions
diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c index 594cd37..2f002b2 100644 --- a/arch/sh/kernel/signal_32.c +++ b/arch/sh/kernel/signal_32.c @@ -262,17 +262,17 @@ get_sigframe(struct k_sigaction *ka, unsigned long sp, size_t frame_size) extern void __kernel_sigreturn(void); extern void __kernel_rt_sigreturn(void); -static int setup_frame(int sig, struct k_sigaction *ka, - sigset_t *set, struct pt_regs *regs) +static int setup_frame(struct ksignal *ksig, sigset_t *set, + struct pt_regs *regs) { struct sigframe __user *frame; - int err = 0; + int err = 0, sig = ksig->sig; int signal; - frame = get_sigframe(ka, regs->regs[15], sizeof(*frame)); + frame = get_sigframe(&ksig->ka, regs->regs[15], sizeof(*frame)); if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) - goto give_sigsegv; + return -EFAULT; signal = current_thread_info()->exec_domain && current_thread_info()->exec_domain->signal_invmap @@ -288,8 +288,8 @@ static int setup_frame(int sig, struct k_sigaction *ka, /* Set up to return from userspace. If provided, use a stub already in userspace. */ - if (ka->sa.sa_flags & SA_RESTORER) { - regs->pr = (unsigned long) ka->sa.sa_restorer; + if (ksig->ka.sa.sa_flags & SA_RESTORER) { + regs->pr = (unsigned long) ksig->ka.sa.sa_restorer; #ifdef CONFIG_VSYSCALL } else if (likely(current->mm->context.vdso)) { regs->pr = VDSO_SYM(&__kernel_sigreturn); @@ -309,7 +309,7 @@ static int setup_frame(int sig, struct k_sigaction *ka, } if (err) - goto give_sigsegv; + return -EFAULT; /* Set up registers for signal handler */ regs->regs[15] = (unsigned long) frame; @@ -319,15 +319,15 @@ static int setup_frame(int sig, struct k_sigaction *ka, if (current->personality & FDPIC_FUNCPTRS) { struct fdpic_func_descriptor __user *funcptr = - (struct fdpic_func_descriptor __user *)ka->sa.sa_handler; + (struct fdpic_func_descriptor __user *)ksig->ka.sa.sa_handler; err |= __get_user(regs->pc, &funcptr->text); err |= __get_user(regs->regs[12], &funcptr->GOT); } else - regs->pc = (unsigned long)ka->sa.sa_handler; + regs->pc = (unsigned long)ksig->ka.sa.sa_handler; if (err) - goto give_sigsegv; + return -EFAULT; set_fs(USER_DS); @@ -335,23 +335,19 @@ static int setup_frame(int sig, struct k_sigaction *ka, current->comm, task_pid_nr(current), frame, regs->pc, regs->pr); return 0; - -give_sigsegv: - force_sigsegv(sig, current); - return -EFAULT; } -static int setup_rt_frame(int sig, 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) { struct rt_sigframe __user *frame; - int err = 0; + int err = 0, sig = ksig->sig; int signal; - frame = get_sigframe(ka, regs->regs[15], sizeof(*frame)); + frame = get_sigframe(&ksig->ka, regs->regs[15], sizeof(*frame)); if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame))) - goto give_sigsegv; + return -EFAULT; signal = current_thread_info()->exec_domain && current_thread_info()->exec_domain->signal_invmap @@ -359,7 +355,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, ? current_thread_info()->exec_domain->signal_invmap[sig] : sig; - 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); @@ -371,8 +367,8 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, /* Set up to return from userspace. If provided, use a stub already in userspace. */ - if (ka->sa.sa_flags & SA_RESTORER) { - regs->pr = (unsigned long) ka->sa.sa_restorer; + if (ksig->ka.sa.sa_flags & SA_RESTORER) { + regs->pr = (unsigned long) ksig->ka.sa.sa_restorer; #ifdef CONFIG_VSYSCALL } else if (likely(current->mm->context.vdso)) { regs->pr = VDSO_SYM(&__kernel_rt_sigreturn); @@ -392,7 +388,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, } if (err) - goto give_sigsegv; + return -EFAULT; /* Set up registers for signal handler */ regs->regs[15] = (unsigned long) frame; @@ -402,15 +398,15 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, if (current->personality & FDPIC_FUNCPTRS) { struct fdpic_func_descriptor __user *funcptr = - (struct fdpic_func_descriptor __user *)ka->sa.sa_handler; + (struct fdpic_func_descriptor __user *)ksig->ka.sa.sa_handler; err |= __get_user(regs->pc, &funcptr->text); err |= __get_user(regs->regs[12], &funcptr->GOT); } else - regs->pc = (unsigned long)ka->sa.sa_handler; + regs->pc = (unsigned long)ksig->ka.sa.sa_handler; if (err) - goto give_sigsegv; + return -EFAULT; set_fs(USER_DS); @@ -418,10 +414,6 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info, current->comm, task_pid_nr(current), frame, regs->pc, regs->pr); return 0; - -give_sigsegv: - force_sigsegv(sig, current); - return -EFAULT; } static inline void @@ -455,22 +447,18 @@ handle_syscall_restart(unsigned long save_r0, struct pt_regs *regs, * OK, we're invoking a handler */ static void -handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, - struct pt_regs *regs, unsigned int save_r0) +handle_signal(struct ksignal *ksig, struct pt_regs *regs, unsigned int save_r0) { sigset_t *oldset = sigmask_to_save(); int ret; /* Set up the stack frame */ - if (ka->sa.sa_flags & SA_SIGINFO) - ret = setup_rt_frame(sig, ka, info, oldset, regs); + if (ksig->ka.sa.sa_flags & SA_SIGINFO) + ret = setup_rt_frame(ksig, oldset, regs); else - ret = setup_frame(sig, ka, oldset, regs); + ret = setup_frame(ksig, oldset, regs); - if (ret) - return; - signal_delivered(sig, info, ka, regs, - test_thread_flag(TIF_SINGLESTEP)); + signal_setup_done(ret, ksig, test_thread_flag(TIF_SINGLESTEP)); } /* @@ -484,9 +472,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info, */ static void do_signal(struct pt_regs *regs, unsigned int save_r0) { - siginfo_t info; - int signr; - struct k_sigaction ka; + struct ksignal ksig; /* * We want the common case to go fast, which @@ -497,12 +483,11 @@ static void do_signal(struct pt_regs *regs, unsigned int save_r0) if (!user_mode(regs)) return; - signr = get_signal_to_deliver(&info, &ka, regs, NULL); - if (signr > 0) { - handle_syscall_restart(save_r0, regs, &ka.sa); + if (get_signal(&ksig)) { + handle_syscall_restart(save_r0, regs, &ksig.ka.sa); /* Whee! Actually deliver the signal. */ - handle_signal(signr, &ka, &info, regs, save_r0); + handle_signal(&ksig, regs, save_r0); return; } |