microsoft
/
WSL2-Linux-Kernel
зеркало из https://github.com/microsoft/WSL2-Linux-Kernel.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность

unicore32: 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>
This commit is contained in:
Richard Weinberger 2013-10-07 15:05:57 +02:00 коммит произвёл Richard Weinberger
Родитель 307627eebb
Коммит 649671c90e
1 изменённых файлов: 20 добавлений и 28 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

48
arch/unicore32/kernel/signal.c
Просмотреть файл

@ -238,10 +238,10 @@ static int setup_return(struct pt_regs *regs, struct k_sigaction *ka,
return 0;
}
static int setup_frame(int usig, 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 = get_sigframe(ka, regs, sizeof(*frame));
struct sigframe __user *frame = get_sigframe(&ksig->ka, regs, sizeof(*frame));
int err = 0;
if (!frame)
@ -254,29 +254,29 @@ static int setup_frame(int usig, struct k_sigaction *ka,
err |= setup_sigframe(frame, regs, set);
if (err == 0)
err |= setup_return(regs, ka, frame->retcode, frame, usig);
err |= setup_return(regs, &ksig->ka, frame->retcode, frame, usig);
return err;
}
static int setup_rt_frame(int usig, 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 =
get_sigframe(ka, regs, sizeof(*frame));
get_sigframe(&ksig->ka, regs, sizeof(*frame));
int err = 0;
if (!frame)
return 1;
err |= copy_siginfo_to_user(&frame->info, info);
err |= copy_siginfo_to_user(&frame->info, &ksig->info);
err |= __put_user(0, &frame->sig.uc.uc_flags);
err |= __put_user(NULL, &frame->sig.uc.uc_link);
err |= __save_altstack(&frame->sig.uc.uc_stack, regs->UCreg_sp);
err |= setup_sigframe(&frame->sig, regs, set);
if (err == 0)
err |= setup_return(regs, ka, frame->sig.retcode, frame, usig);
err |= setup_return(regs, &ksig->ka, frame->sig.retcode, frame, usig);
if (err == 0) {
/*
@ -299,13 +299,13 @@ static inline void setup_syscall_restart(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, int syscall)
static void handle_signal(struct ksignal *ksig, struct pt_regs *regs,
int syscall)
{
struct thread_info *thread = current_thread_info();
struct task_struct *tsk = current;
sigset_t *oldset = sigmask_to_save();
int usig = sig;
int usig = ksig->sig;
int ret;
/*
@ -318,7 +318,7 @@ static void handle_signal(unsigned long sig, struct k_sigaction *ka,
regs->UCreg_00 = -EINTR;
break;
case -ERESTARTSYS:
if (!(ka->sa.sa_flags & SA_RESTART)) {
if (!(ksig->ka.sa.sa_flags & SA_RESTART)) {
regs->UCreg_00 = -EINTR;
break;
}
@ -338,22 +338,17 @@ static void handle_signal(unsigned long sig, struct k_sigaction *ka,
/*
* Set up the stack frame
*/
if (ka->sa.sa_flags & SA_SIGINFO)
ret = setup_rt_frame(usig, ka, info, oldset, regs);
if (ksig->ka.sa.sa_flags & SA_SIGINFO)
ret = setup_rt_frame(ksig, oldset, regs);
else
ret = setup_frame(usig, ka, oldset, regs);
ret = setup_frame(ksig, oldset, regs);
/*
* Check that the resulting registers are actually sane.
*/
ret |= !valid_user_regs(regs);
if (ret != 0) {
force_sigsegv(sig, tsk);
return;
}
signal_delivered(sig, info, ka, regs, 0);
signal_setup_done(ret, ksig, 0);
}
/*
@ -367,9 +362,7 @@ static void handle_signal(unsigned long sig, struct k_sigaction *ka,
*/
static void do_signal(struct pt_regs *regs, int syscall)
{
struct k_sigaction ka;
siginfo_t info;
int signr;
struct ksignal ksig;
/*
* We want the common case to go fast, which
@ -380,9 +373,8 @@ static void do_signal(struct pt_regs *regs, int syscall)
if (!user_mode(regs))
return;
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
if (signr > 0) {
handle_signal(signr, &ka, &info, regs, syscall);
if (get_signsl(&ksig)) {
handle_signal(&ksig, regs, syscall);
return;
}