diff options
Diffstat (limited to 'arch/powerpc/kernel/signal_32.c')
| -rw-r--r-- | arch/powerpc/kernel/signal_32.c | 45 |
1 files changed, 16 insertions, 29 deletions
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c index 4e47db686b5d..b171001698ff 100644 --- a/arch/powerpc/kernel/signal_32.c +++ b/arch/powerpc/kernel/signal_32.c @@ -54,7 +54,6 @@ #include "signal.h" -#undef DEBUG_SIG #ifdef CONFIG_PPC64 #define sys_rt_sigreturn compat_sys_rt_sigreturn @@ -982,9 +981,8 @@ int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from) * Set up a signal frame for a "real-time" signal handler * (one which gets siginfo). */ -int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka, - siginfo_t *info, sigset_t *oldset, - struct pt_regs *regs) +int handle_rt_signal32(struct ksignal *ksig, sigset_t *oldset, + struct pt_regs *regs) { struct rt_sigframe __user *rt_sf; struct mcontext __user *frame; @@ -996,13 +994,13 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka, /* Set up Signal Frame */ /* Put a Real Time Context onto stack */ - rt_sf = get_sigframe(ka, get_tm_stackpointer(regs), sizeof(*rt_sf), 1); + rt_sf = get_sigframe(ksig, get_tm_stackpointer(regs), sizeof(*rt_sf), 1); addr = rt_sf; if (unlikely(rt_sf == NULL)) goto badframe; /* Put the siginfo & fill in most of the ucontext */ - if (copy_siginfo_to_user(&rt_sf->info, info) + if (copy_siginfo_to_user(&rt_sf->info, &ksig->info) || __put_user(0, &rt_sf->uc.uc_flags) || __save_altstack(&rt_sf->uc.uc_stack, regs->gpr[1]) || __put_user(to_user_ptr(&rt_sf->uc.uc_mcontext), @@ -1052,21 +1050,17 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka, /* Fill registers for signal handler */ regs->gpr[1] = newsp; - regs->gpr[3] = sig; + regs->gpr[3] = ksig->sig; regs->gpr[4] = (unsigned long) &rt_sf->info; regs->gpr[5] = (unsigned long) &rt_sf->uc; regs->gpr[6] = (unsigned long) rt_sf; - regs->nip = (unsigned long) ka->sa.sa_handler; + regs->nip = (unsigned long) ksig->ka.sa.sa_handler; /* enter the signal handler in native-endian mode */ regs->msr &= ~MSR_LE; regs->msr |= (MSR_KERNEL & MSR_LE); - return 1; + return 0; badframe: -#ifdef DEBUG_SIG - printk("badframe in handle_rt_signal, regs=%p frame=%p newsp=%lx\n", - regs, frame, newsp); -#endif if (show_unhandled_signals) printk_ratelimited(KERN_INFO "%s[%d]: bad frame in handle_rt_signal32: " @@ -1074,8 +1068,7 @@ badframe: current->comm, current->pid, addr, regs->nip, regs->link); - force_sigsegv(sig, current); - return 0; + return 1; } static int do_setcontext(struct ucontext __user *ucp, struct pt_regs *regs, int sig) @@ -1414,8 +1407,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx, /* * OK, we're invoking a handler */ -int handle_signal32(unsigned long sig, struct k_sigaction *ka, - siginfo_t *info, sigset_t *oldset, struct pt_regs *regs) +int handle_signal32(struct ksignal *ksig, sigset_t *oldset, struct pt_regs *regs) { struct sigcontext __user *sc; struct sigframe __user *frame; @@ -1425,7 +1417,7 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka, unsigned long tramp; /* Set up Signal Frame */ - frame = get_sigframe(ka, get_tm_stackpointer(regs), sizeof(*frame), 1); + frame = get_sigframe(ksig, get_tm_stackpointer(regs), sizeof(*frame), 1); if (unlikely(frame == NULL)) goto badframe; sc = (struct sigcontext __user *) &frame->sctx; @@ -1433,7 +1425,7 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka, #if _NSIG != 64 #error "Please adjust handle_signal()" #endif - if (__put_user(to_user_ptr(ka->sa.sa_handler), &sc->handler) + if (__put_user(to_user_ptr(ksig->ka.sa.sa_handler), &sc->handler) || __put_user(oldset->sig[0], &sc->oldmask) #ifdef CONFIG_PPC64 || __put_user((oldset->sig[0] >> 32), &sc->_unused[3]) @@ -1441,7 +1433,7 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka, || __put_user(oldset->sig[1], &sc->_unused[3]) #endif || __put_user(to_user_ptr(&frame->mctx), &sc->regs) - || __put_user(sig, &sc->signal)) + || __put_user(ksig->sig, &sc->signal)) goto badframe; if (vdso32_sigtramp && current->mm->context.vdso_base) { @@ -1476,18 +1468,14 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka, goto badframe; regs->gpr[1] = newsp; - regs->gpr[3] = sig; + regs->gpr[3] = ksig->sig; regs->gpr[4] = (unsigned long) sc; - regs->nip = (unsigned long) ka->sa.sa_handler; + regs->nip = (unsigned long) (unsigned long)ksig->ka.sa.sa_handler; /* enter the signal handler in big-endian mode */ regs->msr &= ~MSR_LE; - return 1; + return 0; badframe: -#ifdef DEBUG_SIG - printk("badframe in handle_signal, regs=%p frame=%p newsp=%lx\n", - regs, frame, newsp); -#endif if (show_unhandled_signals) printk_ratelimited(KERN_INFO "%s[%d]: bad frame in handle_signal32: " @@ -1495,8 +1483,7 @@ badframe: current->comm, current->pid, frame, regs->nip, regs->link); - force_sigsegv(sig, current); - return 0; + return 1; } /* |