uml: remove unused file

arch/um/os-Linux/tt.c is no longer used.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/um/os-Linux/tt.c b/arch/um/os-Linux/tt.c
deleted file mode 100644 (file)
index 5dc113d..0000000
--- a/arch/um/os-Linux/tt.c
+++ /dev/null
@@ -1,195 +0,0 @@
-/*
- * Copyright (C) 2000, 2001, 2002 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#include <stdio.h>
-#include <unistd.h>
-#include <signal.h>
-#include <sched.h>
-#include <errno.h>
-#include <stdarg.h>
-#include <stdlib.h>
-#include <sys/time.h>
-#include <sys/ptrace.h>
-#include <linux/ptrace.h>
-#include <sys/wait.h>
-#include <sys/mman.h>
-#include <asm/ptrace.h>
-#include <asm/unistd.h>
-#include "kern_util.h"
-#include "user.h"
-#include "signal_kern.h"
-#include "sysdep/ptrace.h"
-#include "sysdep/sigcontext.h"
-#include "irq_user.h"
-#include "ptrace_user.h"
-#include "init.h"
-#include "os.h"
-#include "uml-config.h"
-#include "choose-mode.h"
-#include "mode.h"
-#include "tempfile.h"
-#include "kern_constants.h"
-
-int protect_memory(unsigned long addr, unsigned long len, int r, int w, int x,
-                  int must_succeed)
-{
-       int err;
-
-       err = os_protect_memory((void *) addr, len, r, w, x);
-       if(err < 0){
-                if(must_succeed)
-                       panic("protect failed, err = %d", -err);
-               else return(err);
-       }
-       return(0);
-}
-
-void kill_child_dead(int pid)
-{
-       kill(pid, SIGKILL);
-       kill(pid, SIGCONT);
-       do {
-               int n;
-               CATCH_EINTR(n = waitpid(pid, NULL, 0));
-               if (n > 0)
-                       kill(pid, SIGCONT);
-               else
-                       break;
-       } while(1);
-}
-
-void stop(void)
-{
-       while(1) sleep(1000000);
-}
-
-int wait_for_stop(int pid, int sig, int cont_type, void *relay)
-{
-       sigset_t *relay_signals = relay;
-       int status, ret;
-
-       while(1){
-               CATCH_EINTR(ret = waitpid(pid, &status, WUNTRACED));
-               if((ret < 0) ||
-                  !WIFSTOPPED(status) || (WSTOPSIG(status) != sig)){
-                       if(ret < 0){
-                               printk("wait failed, errno = %d\n",
-                                      errno);
-                       }
-                       else if(WIFEXITED(status))
-                               printk("process %d exited with status %d\n",
-                                      pid, WEXITSTATUS(status));
-                       else if(WIFSIGNALED(status))
-                               printk("process %d exited with signal %d\n",
-                                      pid, WTERMSIG(status));
-                       else if((WSTOPSIG(status) == SIGVTALRM) ||
-                               (WSTOPSIG(status) == SIGALRM) ||
-                               (WSTOPSIG(status) == SIGIO) ||
-                               (WSTOPSIG(status) == SIGPROF) ||
-                               (WSTOPSIG(status) == SIGCHLD) ||
-                               (WSTOPSIG(status) == SIGWINCH) ||
-                               (WSTOPSIG(status) == SIGINT)){
-                               ptrace(cont_type, pid, 0, WSTOPSIG(status));
-                               continue;
-                       }
-                       else if((relay_signals != NULL) &&
-                               sigismember(relay_signals, WSTOPSIG(status))){
-                               ptrace(cont_type, pid, 0, WSTOPSIG(status));
-                               continue;
-                       }
-                       else printk("process %d stopped with signal %d\n",
-                                   pid, WSTOPSIG(status));
-                       panic("wait_for_stop failed to wait for %d to stop "
-                             "with %d\n", pid, sig);
-               }
-               return(status);
-       }
-}
-
-void forward_ipi(int fd, int pid)
-{
-       int err;
-
-       err = os_set_owner(fd, pid);
-       if(err < 0)
-               printk("forward_ipi: set_owner failed, fd = %d, me = %d, "
-                      "target = %d, err = %d\n", fd, os_getpid(), pid, -err);
-}
-
-/*
- *-------------------------
- * only for tt mode (will be deleted in future...)
- *-------------------------
- */
-
-struct tramp {
-       int (*tramp)(void *);
-       void *tramp_data;
-       unsigned long temp_stack;
-       int flags;
-       int pid;
-};
-
-/* See above for why sigkill is here */
-
-int sigkill = SIGKILL;
-
-int outer_tramp(void *arg)
-{
-       struct tramp *t;
-       int sig = sigkill;
-
-       t = arg;
-       t->pid = clone(t->tramp, (void *) t->temp_stack + UM_KERN_PAGE_SIZE/2,
-                      t->flags, t->tramp_data);
-       if(t->pid > 0) wait_for_stop(t->pid, SIGSTOP, PTRACE_CONT, NULL);
-       kill(os_getpid(), sig);
-       _exit(0);
-}
-
-int start_fork_tramp(void *thread_arg, unsigned long temp_stack,
-                    int clone_flags, int (*tramp)(void *))
-{
-       struct tramp arg;
-       unsigned long sp;
-       int new_pid, status, err;
-
-       /* The trampoline will run on the temporary stack */
-       sp = stack_sp(temp_stack);
-
-       clone_flags |= CLONE_FILES | SIGCHLD;
-
-       arg.tramp = tramp;
-       arg.tramp_data = thread_arg;
-       arg.temp_stack = temp_stack;
-       arg.flags = clone_flags;
-
-       /* Start the process and wait for it to kill itself */
-       new_pid = clone(outer_tramp, (void *) sp, clone_flags, &arg);
-       if(new_pid < 0)
-               return(new_pid);
-
-       CATCH_EINTR(err = waitpid(new_pid, &status, 0));
-       if(err < 0)
-               panic("Waiting for outer trampoline failed - errno = %d",
-                     errno);
-
-       if(!WIFSIGNALED(status) || (WTERMSIG(status) != SIGKILL))
-               panic("outer trampoline didn't exit with SIGKILL, "
-                     "status = %d", status);
-
-       return(arg.pid);
-}
-
-void forward_pending_sigio(int target)
-{
-       sigset_t sigs;
-
-       if(sigpending(&sigs))
-               panic("forward_pending_sigio : sigpending failed");
-       if(sigismember(&sigs, SIGIO))
-               kill(target, SIGIO);
-}
-