diff options
author | Paul Mackerras <paulus@samba.org> | 2005-11-08 11:14:20 +1100 |
---|---|---|
committer | Paul Mackerras <paulus@samba.org> | 2005-11-08 11:14:20 +1100 |
commit | 24bfb00123e82a2e70bd115277d922438813515b (patch) | |
tree | 27328b8a5718e16d64e2d101f4b7ddcad5930aed /arch/m68k/kernel/ptrace.c | |
parent | c6135234550ed89a6fd0e8cb229633967e41d649 (diff) | |
parent | 3f00d3e8fb963968a922d821a9a53b503b687e81 (diff) | |
download | blackbird-op-linux-24bfb00123e82a2e70bd115277d922438813515b.tar.gz blackbird-op-linux-24bfb00123e82a2e70bd115277d922438813515b.zip |
Merge ../linux-2.6
Diffstat (limited to 'arch/m68k/kernel/ptrace.c')
-rw-r--r-- | arch/m68k/kernel/ptrace.c | 47 |
1 files changed, 3 insertions, 44 deletions
diff --git a/arch/m68k/kernel/ptrace.c b/arch/m68k/kernel/ptrace.c index f7f1d2e5b90b..7e54422685cf 100644 --- a/arch/m68k/kernel/ptrace.c +++ b/arch/m68k/kernel/ptrace.c @@ -121,48 +121,11 @@ void ptrace_disable(struct task_struct *child) child->thread.work.syscall_trace = 0; } -asmlinkage long sys_ptrace(long request, long pid, long addr, long data) +long arch_ptrace(struct task_struct *child, long request, long addr, long data) { - struct task_struct *child; unsigned long tmp; int i, ret = 0; - lock_kernel(); - if (request == PTRACE_TRACEME) { - /* are we already being traced? */ - if (current->ptrace & PT_PTRACED) { - ret = -EPERM; - goto out; - } - /* set the ptrace bit in the process flags. */ - current->ptrace |= PT_PTRACED; - goto out; - } - read_lock(&tasklist_lock); - child = find_task_by_pid(pid); - if (child) - get_task_struct(child); - read_unlock(&tasklist_lock); - if (unlikely(!child)) { - ret = -ESRCH; - goto out; - } - - /* you may not mess with init */ - if (unlikely(pid == 1)) { - ret = -EPERM; - goto out_tsk; - } - - if (request == PTRACE_ATTACH) { - ret = ptrace_attach(child); - goto out_tsk; - } - - ret = ptrace_check_attach(child, request == PTRACE_KILL); - if (ret) - goto out_tsk; - switch (request) { /* when I and D space are separate, these will need to be fixed. */ case PTRACE_PEEKTEXT: /* read word at location addr. */ @@ -317,14 +280,10 @@ asmlinkage long sys_ptrace(long request, long pid, long addr, long data) ret = ptrace_request(child, request, addr, data); break; } -out_tsk: - put_task_struct(child); -out: - unlock_kernel(); + return ret; out_eio: - ret = -EIO; - goto out_tsk; + return -EIO; } asmlinkage void syscall_trace(void) |