diff options
Diffstat (limited to 'arch/s390/kernel/compat_signal.c')
| -rw-r--r-- | arch/s390/kernel/compat_signal.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c index fd83b69207f5..a1dc6457016c 100644 --- a/arch/s390/kernel/compat_signal.c +++ b/arch/s390/kernel/compat_signal.c @@ -302,7 +302,8 @@ static int save_sigregs32(struct pt_regs *regs, _sigregs32 __user *sregs) regs32.psw.mask = psw32_user_bits | ((__u32)(regs->psw.mask >> 32) & PSW32_MASK_USER); - regs32.psw.addr = PSW32_ADDR_AMODE | (__u32) regs->psw.addr; + regs32.psw.addr = (__u32) regs->psw.addr | + (__u32)(regs->psw.mask & PSW_MASK_BA); for (i = 0; i < NUM_GPRS; i++) regs32.gprs[i] = (__u32) regs->gprs[i]; save_access_regs(current->thread.acrs); @@ -328,7 +329,8 @@ static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs) if (err) return err; regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) | - (__u64)(regs32.psw.mask & PSW32_MASK_USER) << 32; + (__u64)(regs32.psw.mask & PSW32_MASK_USER) << 32 | + (__u64)(regs32.psw.addr & PSW32_ADDR_AMODE); regs->psw.addr = (__u64)(regs32.psw.addr & PSW32_ADDR_INSN); for (i = 0; i < NUM_GPRS; i++) regs->gprs[i] = (__u64) regs32.gprs[i]; @@ -496,9 +498,9 @@ static int setup_frame32(int sig, struct k_sigaction *ka, /* Set up to return from userspace. If provided, use a stub already in userspace. */ if (ka->sa.sa_flags & SA_RESTORER) { - regs->gprs[14] = (__u64) ka->sa.sa_restorer; + regs->gprs[14] = (__u64) ka->sa.sa_restorer | PSW32_ADDR_AMODE; } else { - regs->gprs[14] = (__u64) frame->retcode; + regs->gprs[14] = (__u64) frame->retcode | PSW32_ADDR_AMODE; if (__put_user(S390_SYSCALL_OPCODE | __NR_sigreturn, (u16 __user *)(frame->retcode))) goto give_sigsegv; @@ -510,6 +512,7 @@ static int setup_frame32(int sig, struct k_sigaction *ka, /* Set up registers for signal handler */ regs->gprs[15] = (__u64) frame; + regs->psw.mask |= PSW_MASK_BA; /* force amode 31 */ regs->psw.addr = (__u64) ka->sa.sa_handler; regs->gprs[2] = map_signal(sig); @@ -573,6 +576,7 @@ static int setup_rt_frame32(int sig, struct k_sigaction *ka, siginfo_t *info, /* Set up registers for signal handler */ regs->gprs[15] = (__u64) frame; + regs->psw.mask |= PSW_MASK_BA; /* force amode 31 */ regs->psw.addr = (__u64) ka->sa.sa_handler; regs->gprs[2] = map_signal(sig); |