diff options
Diffstat (limited to 'kernel/signal.c')
| -rw-r--r-- | kernel/signal.c | 81 |
1 files changed, 56 insertions, 25 deletions
diff --git a/kernel/signal.c b/kernel/signal.c index 376b42f26e6d..8a85da8aaa7c 100644 --- a/kernel/signal.c +++ b/kernel/signal.c @@ -2820,8 +2820,19 @@ enum siginfo_layout siginfo_layout(int sig, int si_code) [SIGPOLL] = { NSIGPOLL, SIL_POLL }, [SIGSYS] = { NSIGSYS, SIL_SYS }, }; - if ((sig < ARRAY_SIZE(filter)) && (si_code <= filter[sig].limit)) + if ((sig < ARRAY_SIZE(filter)) && (si_code <= filter[sig].limit)) { layout = filter[sig].layout; + /* Handle the exceptions */ + if ((sig == SIGBUS) && + (si_code >= BUS_MCEERR_AR) && (si_code <= BUS_MCEERR_AO)) + layout = SIL_FAULT_MCEERR; + else if ((sig == SIGSEGV) && (si_code == SEGV_BNDERR)) + layout = SIL_FAULT_BNDERR; +#ifdef SEGV_PKUERR + else if ((sig == SIGSEGV) && (si_code == SEGV_PKUERR)) + layout = SIL_FAULT_PKUERR; +#endif + } else if (si_code <= NSIGPOLL) layout = SIL_POLL; } else { @@ -2878,19 +2889,28 @@ int __copy_siginfo_to_user32(struct compat_siginfo __user *to, #ifdef __ARCH_SI_TRAPNO new.si_trapno = from->si_trapno; #endif - if ((from->si_signo == SIGBUS) && - ((from->si_code == BUS_MCEERR_AR) || - (from->si_code == BUS_MCEERR_AO))) - new.si_addr_lsb = from->si_addr_lsb; - - if ((from->si_signo == SIGSEGV) && - (from->si_code == SEGV_BNDERR)) { - new.si_lower = ptr_to_compat(from->si_lower); - new.si_upper = ptr_to_compat(from->si_upper); - } - if ((from->si_signo == SIGSEGV) && - (from->si_code == SEGV_PKUERR)) - new.si_pkey = from->si_pkey; + break; + case SIL_FAULT_MCEERR: + new.si_addr = ptr_to_compat(from->si_addr); +#ifdef __ARCH_SI_TRAPNO + new.si_trapno = from->si_trapno; +#endif + new.si_addr_lsb = from->si_addr_lsb; + break; + case SIL_FAULT_BNDERR: + new.si_addr = ptr_to_compat(from->si_addr); +#ifdef __ARCH_SI_TRAPNO + new.si_trapno = from->si_trapno; +#endif + new.si_lower = ptr_to_compat(from->si_lower); + new.si_upper = ptr_to_compat(from->si_upper); + break; + case SIL_FAULT_PKUERR: + new.si_addr = ptr_to_compat(from->si_addr); +#ifdef __ARCH_SI_TRAPNO + new.si_trapno = from->si_trapno; +#endif + new.si_pkey = from->si_pkey; break; case SIL_CHLD: new.si_pid = from->si_pid; @@ -2956,17 +2976,28 @@ int copy_siginfo_from_user32(struct siginfo *to, #ifdef __ARCH_SI_TRAPNO to->si_trapno = from.si_trapno; #endif - if ((from.si_signo == SIGBUS) && - ((from.si_code == BUS_MCEERR_AR) || - (from.si_code == BUS_MCEERR_AO))) - to->si_addr_lsb = from.si_addr_lsb; - - if ((from.si_signo == SIGSEGV) && (from.si_code == SEGV_BNDERR)) { - to->si_lower = compat_ptr(from.si_lower); - to->si_upper = compat_ptr(from.si_upper); - } - if ((from.si_signo == SIGSEGV) && (from.si_code == SEGV_PKUERR)) - to->si_pkey = from.si_pkey; + break; + case SIL_FAULT_MCEERR: + to->si_addr = compat_ptr(from.si_addr); +#ifdef __ARCH_SI_TRAPNO + to->si_trapno = from.si_trapno; +#endif + to->si_addr_lsb = from.si_addr_lsb; + break; + case SIL_FAULT_BNDERR: + to->si_addr = compat_ptr(from.si_addr); +#ifdef __ARCH_SI_TRAPNO + to->si_trapno = from.si_trapno; +#endif + to->si_lower = compat_ptr(from.si_lower); + to->si_upper = compat_ptr(from.si_upper); + break; + case SIL_FAULT_PKUERR: + to->si_addr = compat_ptr(from.si_addr); +#ifdef __ARCH_SI_TRAPNO + to->si_trapno = from.si_trapno; +#endif + to->si_pkey = from.si_pkey; break; case SIL_CHLD: to->si_pid = from.si_pid; |