diff options
Diffstat (limited to 'arch/sparc64/kernel/signal32.c')
| -rw-r--r-- | arch/sparc64/kernel/signal32.c | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/arch/sparc64/kernel/signal32.c b/arch/sparc64/kernel/signal32.c index 0f6b7b156ef..3f19e9af3d1 100644 --- a/arch/sparc64/kernel/signal32.c +++ b/arch/sparc64/kernel/signal32.c @@ -269,7 +269,7 @@ void do_sigreturn32(struct pt_regs *regs) regs->tstate |= psr_to_tstate_icc(psr); /* Prevent syscall restart. */ - pt_regs_clear_trap_type(regs); + pt_regs_clear_syscall(regs); err |= __get_user(fpu_save, &sf->fpu_save); if (fpu_save) @@ -355,7 +355,7 @@ asmlinkage void do_rt_sigreturn32(struct pt_regs *regs) regs->tstate |= psr_to_tstate_icc(psr); /* Prevent syscall restart. */ - pt_regs_clear_trap_type(regs); + pt_regs_clear_syscall(regs); err |= __get_user(fpu_save, &sf->fpu_save); if (fpu_save) @@ -768,16 +768,24 @@ static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs * mistake. */ void do_signal32(sigset_t *oldset, struct pt_regs * regs, - struct signal_deliver_cookie *cookie) + int restart_syscall, unsigned long orig_i0) { struct k_sigaction ka; siginfo_t info; int signr; - signr = get_signal_to_deliver(&info, &ka, regs, cookie); + signr = get_signal_to_deliver(&info, &ka, regs, NULL); + + /* If the debugger messes with the program counter, it clears + * the "in syscall" bit, directing us to not perform a syscall + * restart. + */ + if (restart_syscall && !pt_regs_is_syscall(regs)) + restart_syscall = 0; + if (signr > 0) { - if (cookie->restart_syscall) - syscall_restart32(cookie->orig_i0, regs, &ka.sa); + if (restart_syscall) + syscall_restart32(orig_i0, regs, &ka.sa); handle_signal32(signr, &ka, &info, oldset, regs); /* a signal was successfully delivered; the saved @@ -789,16 +797,16 @@ void do_signal32(sigset_t *oldset, struct pt_regs * regs, clear_thread_flag(TIF_RESTORE_SIGMASK); return; } - if (cookie->restart_syscall && + if (restart_syscall && (regs->u_regs[UREG_I0] == ERESTARTNOHAND || regs->u_regs[UREG_I0] == ERESTARTSYS || regs->u_regs[UREG_I0] == ERESTARTNOINTR)) { /* replay the system call when we are done */ - regs->u_regs[UREG_I0] = cookie->orig_i0; + regs->u_regs[UREG_I0] = orig_i0; regs->tpc -= 4; regs->tnpc -= 4; } - if (cookie->restart_syscall && + if (restart_syscall && regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) { regs->u_regs[UREG_G1] = __NR_restart_syscall; regs->tpc -= 4; |