1 files changed, 0 insertions, 86 deletions
diff --git a/arch/um/sys-i386/ptrace_user.c b/arch/um/sys-i386/ptrace_user.c
index 40ff0c831bd..b68dd230e64 100644
--- a/arch/um/sys-i386/ptrace_user.c
+++ b/arch/um/sys-i386/ptrace_user.c
@@ -43,89 +43,3 @@ int ptrace_setfpregs(long pid, unsigned long *regs)
 		return -errno;
 	return 0;
 }
-
-#ifdef UML_CONFIG_MODE_TT
-
-static void write_debugregs(int pid, unsigned long *regs)
-{
-	struct user *dummy;
-	int nregs, i;
-
-	dummy = NULL;
-	nregs = ARRAY_SIZE(dummy->u_debugreg);
-	for(i = 0; i < nregs; i++){
-		if((i == 4) || (i == 5)) continue;
-		if(ptrace(PTRACE_POKEUSR, pid, &dummy->u_debugreg[i],
-			  regs[i]) < 0)
-			printk("write_debugregs - ptrace failed on "
-			       "register %d, value = 0x%lx, errno = %d\n", i,
-			       regs[i], errno);
-	}
-}
-
-static void read_debugregs(int pid, unsigned long *regs)
-{
-	struct user *dummy;
-	int nregs, i;
-
-	dummy = NULL;
-	nregs = ARRAY_SIZE(dummy->u_debugreg);
-	for(i = 0; i < nregs; i++){
-		regs[i] = ptrace(PTRACE_PEEKUSR, pid,
-				 &dummy->u_debugreg[i], 0);
-	}
-}
-
-/* Accessed only by the tracing thread */
-static unsigned long kernel_debugregs[8] = { [ 0 ... 7 ] = 0 };
-
-void arch_enter_kernel(void *task, int pid)
-{
-	read_debugregs(pid, TASK_DEBUGREGS(task));
-	write_debugregs(pid, kernel_debugregs);
-}
-
-void arch_leave_kernel(void *task, int pid)
-{
-	read_debugregs(pid, kernel_debugregs);
-	write_debugregs(pid, TASK_DEBUGREGS(task));
-}
-
-#ifdef UML_CONFIG_PT_PROXY
-/* Accessed only by the tracing thread */
-static int debugregs_seq;
-
-/* Only called by the ptrace proxy */
-void ptrace_pokeuser(unsigned long addr, unsigned long data)
-{
-	if((addr < offsetof(struct user, u_debugreg[0])) ||
-	   (addr > offsetof(struct user, u_debugreg[7])))
-		return;
-	addr -= offsetof(struct user, u_debugreg[0]);
-	addr = addr >> 2;
-	if(kernel_debugregs[addr] == data) return;
-
-	kernel_debugregs[addr] = data;
-	debugregs_seq++;
-}
-
-static void update_debugregs_cb(void *arg)
-{
-	int pid = *((int *) arg);
-
-	write_debugregs(pid, kernel_debugregs);
-}
-
-/* Optimized out in its header when not defined */
-void update_debugregs(int seq)
-{
-	int me;
-
-	if(seq == debugregs_seq) return;
-
-	me = os_getpid();
-	initial_thread_cb(update_debugregs_cb, &me);
-}
-#endif
-
-#endif