Merge ../ntfs-2.6-devel

[linux-2.6-omap-h63xx.git] / arch / um / os-Linux / tt.c

diff --git a/arch/um/os-Linux/tt.c b/arch/um/os-Linux/tt.c
index 5b047ab8416a12df3aea79f06755fce966481e05..919d19f11537172cf6817e3682909497eb73bd8c 100644 (file)
--- a/arch/um/os-Linux/tt.c
+++ b/arch/um/os-Linux/tt.c
@@ -23,12 +23,10 @@
 #include "kern_util.h"
 #include "user.h"
 #include "signal_kern.h"
-#include "signal_user.h"
 #include "sysdep/ptrace.h"
 #include "sysdep/sigcontext.h"
 #include "irq_user.h"
 #include "ptrace_user.h"
-#include "time_user.h"
 #include "init.h"
 #include "os.h"
 #include "uml-config.h"
@@ -36,6 +34,82 @@
 #include "mode.h"
 #include "tempfile.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);
+       }
+}
+
 /*
  *-------------------------
  * only for tt mode (will be deleted in future...)