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 40ff0c831bd0..b68dd230e646 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