Pull utrace into release branch

[cascardo/linux.git] / arch / ia64 / ia32 / sys_ia32.c

diff --git a/arch/ia64/ia32/sys_ia32.c b/arch/ia64/ia32/sys_ia32.c
index 800a717..5e92ae0 100644 (file)
--- a/arch/ia64/ia32/sys_ia32.c
+++ b/arch/ia64/ia32/sys_ia32.c
@@ -1194,25 +1194,6 @@ sys32_waitpid (int pid, unsigned int *stat_addr, int options)
        return compat_sys_wait4(pid, stat_addr, options, NULL);
 }
 
-static unsigned int
-ia32_peek (struct task_struct *child, unsigned long addr, unsigned int *val)
-{
-       size_t copied;
-       unsigned int ret;
-
-       copied = access_process_vm(child, addr, val, sizeof(*val), 0);
-       return (copied != sizeof(ret)) ? -EIO : 0;
-}
-
-static unsigned int
-ia32_poke (struct task_struct *child, unsigned long addr, unsigned int val)
-{
-
-       if (access_process_vm(child, addr, &val, sizeof(val), 1) != sizeof(val))
-               return -EIO;
-       return 0;
-}
-
 /*
  *  The order in which registers are stored in the ptrace regs structure
  */
@@ -1510,49 +1491,15 @@ restore_ia32_fpxstate (struct task_struct *tsk, struct ia32_user_fxsr_struct __u
        return 0;
 }
 
-asmlinkage long
-sys32_ptrace (int request, pid_t pid, unsigned int addr, unsigned int data)
+long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
+       compat_ulong_t caddr, compat_ulong_t cdata)
 {
-       struct task_struct *child;
-       unsigned int value, tmp;
+       unsigned long addr = caddr;
+       unsigned long data = cdata;
+       unsigned int tmp;
        long i, ret;
 
-       lock_kernel();
-       if (request == PTRACE_TRACEME) {
-               ret = ptrace_traceme();
-               goto out;
-       }
-
-       child = ptrace_get_task_struct(pid);
-       if (IS_ERR(child)) {
-               ret = PTR_ERR(child);
-               goto out;
-       }
-
-       if (request == PTRACE_ATTACH) {
-               ret = sys_ptrace(request, pid, addr, data);
-               goto out_tsk;
-       }
-
-       ret = ptrace_check_attach(child, request == PTRACE_KILL);
-       if (ret < 0)
-               goto out_tsk;
-
        switch (request) {
-             case PTRACE_PEEKTEXT:
-             case PTRACE_PEEKDATA:     /* read word at location addr */
-               ret = ia32_peek(child, addr, &value);
-               if (ret == 0)
-                       ret = put_user(value, (unsigned int __user *) compat_ptr(data));
-               else
-                       ret = -EIO;
-               goto out_tsk;
-
-             case PTRACE_POKETEXT:
-             case PTRACE_POKEDATA:     /* write the word at location addr */
-               ret = ia32_poke(child, addr, data);
-               goto out_tsk;
-
              case PTRACE_PEEKUSR:      /* read word at addr in USER area */
                ret = -EIO;
                if ((addr & 3) || addr > 17*sizeof(int))
@@ -1617,27 +1564,9 @@ sys32_ptrace (int request, pid_t pid, unsigned int addr, unsigned int data)
                                            compat_ptr(data));
                break;
 
-             case PTRACE_GETEVENTMSG:   
-               ret = put_user(child->ptrace_message, (unsigned int __user *) compat_ptr(data));
-               break;
-
-             case PTRACE_SYSCALL:      /* continue, stop after next syscall */
-             case PTRACE_CONT:         /* restart after signal. */
-             case PTRACE_KILL:
-             case PTRACE_SINGLESTEP:   /* execute chile for one instruction */
-             case PTRACE_DETACH:       /* detach a process */
-               ret = sys_ptrace(request, pid, addr, data);
-               break;
-
              default:
-               ret = ptrace_request(child, request, addr, data);
-               break;
-
+               return compat_ptrace_request(child, request, caddr, cdata);
        }
-  out_tsk:
-       put_task_struct(child);
-  out:
-       unlock_kernel();
        return ret;
 }