diff options
Diffstat (limited to 'kernel/ptrace.c')
| -rw-r--r-- | kernel/ptrace.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/kernel/ptrace.c b/kernel/ptrace.c index 3eca7a55f2e..a73ebd3b9d4 100644 --- a/kernel/ptrace.c +++ b/kernel/ptrace.c @@ -386,6 +386,9 @@ int ptrace_request(struct task_struct *child, long request, case PTRACE_SETSIGINFO: ret = ptrace_setsiginfo(child, (siginfo_t __user *) data); break; + case PTRACE_DETACH: /* detach a process that was attached. */ + ret = ptrace_detach(child, data); + break; default: break; } @@ -450,6 +453,10 @@ struct task_struct *ptrace_get_task_struct(pid_t pid) return child; } +#ifndef arch_ptrace_attach +#define arch_ptrace_attach(child) do { } while (0) +#endif + #ifndef __ARCH_SYS_PTRACE asmlinkage long sys_ptrace(long request, long pid, long addr, long data) { @@ -473,6 +480,12 @@ asmlinkage long sys_ptrace(long request, long pid, long addr, long data) if (request == PTRACE_ATTACH) { ret = ptrace_attach(child); + /* + * Some architectures need to do book-keeping after + * a ptrace attach. + */ + if (!ret) + arch_ptrace_attach(child); goto out_put_task_struct; } |