diff options
Diffstat (limited to 'arch/powerpc/kernel/signal.c')
| -rw-r--r-- | arch/powerpc/kernel/signal.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c index a264989626fd..b4143b6ff093 100644 --- a/arch/powerpc/kernel/signal.c +++ b/arch/powerpc/kernel/signal.c @@ -198,7 +198,10 @@ static void check_syscall_restart(struct pt_regs *regs, struct k_sigaction *ka, int restart = 1; /* syscall ? */ - if (TRAP(regs) != 0x0C00) + if (!trap_is_syscall(regs)) + return; + + if (trap_norestart(regs)) return; /* error signalled ? */ @@ -258,19 +261,24 @@ static void do_signal(struct task_struct *tsk) if (ksig.sig <= 0) { /* No signal to deliver -- put the saved sigmask back */ restore_saved_sigmask(); - tsk->thread.regs->trap = 0; + set_trap_norestart(tsk->thread.regs); return; /* no signals delivered */ } -#ifndef CONFIG_PPC_ADV_DEBUG_REGS /* * Reenable the DABR before delivering the signal to * user space. The DABR will have been cleared if it * triggered inside the kernel. */ - if (tsk->thread.hw_brk.address && tsk->thread.hw_brk.type) - __set_breakpoint(&tsk->thread.hw_brk); -#endif + if (!IS_ENABLED(CONFIG_PPC_ADV_DEBUG_REGS)) { + int i; + + for (i = 0; i < nr_wp_slots(); i++) { + if (tsk->thread.hw_brk[i].address && tsk->thread.hw_brk[i].type) + __set_breakpoint(i, &tsk->thread.hw_brk[i]); + } + } + /* Re-enable the breakpoints for the signal stack */ thread_change_pc(tsk, tsk->thread.regs); @@ -285,7 +293,7 @@ static void do_signal(struct task_struct *tsk) ret = handle_rt_signal64(&ksig, oldset, tsk); } - tsk->thread.regs->trap = 0; + set_trap_norestart(tsk->thread.regs); signal_setup_done(ret, &ksig, test_thread_flag(TIF_SINGLESTEP)); } |