diff options
Diffstat (limited to 'arch/ia64/kernel/ptrace.c')
| -rw-r--r-- | arch/ia64/kernel/ptrace.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/arch/ia64/kernel/ptrace.c b/arch/ia64/kernel/ptrace.c index 00f803246948..2e96f17b2f3b 100644 --- a/arch/ia64/kernel/ptrace.c +++ b/arch/ia64/kernel/ptrace.c @@ -951,10 +951,14 @@ access_uarea (struct task_struct *child, unsigned long addr, return 0; case PT_CR_IPSR: - if (write_access) - pt->cr_ipsr = ((*data & IPSR_MASK) + if (write_access) { + unsigned long tmp = *data; + /* psr.ri==3 is a reserved value: SDM 2:25 */ + if ((tmp & IA64_PSR_RI) == IA64_PSR_RI) + tmp &= ~IA64_PSR_RI; + pt->cr_ipsr = ((tmp & IPSR_MASK) | (pt->cr_ipsr & ~IPSR_MASK)); - else + } else *data = (pt->cr_ipsr & IPSR_MASK); return 0; @@ -1573,7 +1577,6 @@ sys_ptrace (long request, pid_t pid, unsigned long addr, unsigned long data) case PTRACE_DETACH: /* detach a process that was attached. */ - clear_tsk_thread_flag(child, TIF_SYSCALL_TRACE); ret = ptrace_detach(child, data); goto out_tsk; |