diff options
Diffstat (limited to 'arch/csky/kernel/signal.c')
| -rw-r--r-- | arch/csky/kernel/signal.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/arch/csky/kernel/signal.c b/arch/csky/kernel/signal.c index 9b1b7c039ddf..10da0fefd431 100644 --- a/arch/csky/kernel/signal.c +++ b/arch/csky/kernel/signal.c @@ -3,7 +3,7 @@ #include <linux/signal.h> #include <linux/uaccess.h> #include <linux/syscalls.h> -#include <linux/tracehook.h> +#include <linux/resume_user_mode.h> #include <asm/traps.h> #include <asm/ucontext.h> @@ -52,10 +52,14 @@ static long restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) { int err = 0; + unsigned long sr = regs->sr; /* sc_pt_regs is structured the same as the start of pt_regs */ err |= __copy_from_user(regs, &sc->sc_pt_regs, sizeof(struct pt_regs)); + /* BIT(0) of regs->sr is Condition Code/Carry bit */ + regs->sr = (sr & ~1) | (regs->sr & 1); + /* Restore the floating-point state. */ err |= restore_fpu_state(sc); @@ -132,9 +136,8 @@ static inline void __user *get_sigframe(struct ksignal *ksig, static int setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) { - struct rt_sigframe *frame; + struct rt_sigframe __user *frame; int err = 0; - struct csky_vdso *vdso = current->mm->context.vdso; frame = get_sigframe(ksig, regs, sizeof(*frame)); if (!access_ok(frame, sizeof(*frame))) @@ -152,7 +155,8 @@ setup_rt_frame(struct ksignal *ksig, sigset_t *set, struct pt_regs *regs) return -EFAULT; /* Set up to return from userspace. */ - regs->lr = (unsigned long)(vdso->rt_signal_retcode); + regs->lr = (unsigned long)VDSO_SYMBOL( + current->mm->context.vdso, rt_sigreturn); /* * Set up registers for signal handler. @@ -192,7 +196,7 @@ static void handle_signal(struct ksignal *ksig, struct pt_regs *regs) regs->a0 = -EINTR; break; } - /* fallthrough */ + fallthrough; case -ERESTARTNOINTR: regs->a0 = regs->orig_a0; regs->pc -= TRAP0_SIZE; @@ -251,12 +255,13 @@ static void do_signal(struct pt_regs *regs) asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags) { + if (thread_info_flags & _TIF_UPROBE) + uprobe_notify_resume(regs); + /* Handle pending signal delivery */ - if (thread_info_flags & _TIF_SIGPENDING) + if (thread_info_flags & (_TIF_SIGPENDING | _TIF_NOTIFY_SIGNAL)) do_signal(regs); - if (thread_info_flags & _TIF_NOTIFY_RESUME) { - clear_thread_flag(TIF_NOTIFY_RESUME); - tracehook_notify_resume(regs); - } + if (thread_info_flags & _TIF_NOTIFY_RESUME) + resume_user_mode_work(regs); } |