Patched in Tegra support.

1 files changed, 50 insertions, 10 deletions

diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c
index c1d0ae069b5..f958cb876ee 100644
--- a/arch/um/kernel/syscall.c
+++ b/arch/um/kernel/syscall.c
@@ -3,16 +3,40 @@
  * Licensed under the GPL
  */
 
-#include <linux/file.h>
-#include <linux/fs.h>
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <linux/utsname.h>
-#include <linux/syscalls.h>
-#include <asm/current.h>
-#include <asm/mman.h>
-#include <asm/uaccess.h>
-#include <asm/unistd.h>
+#include "linux/file.h"
+#include "linux/fs.h"
+#include "linux/mm.h"
+#include "linux/sched.h"
+#include "linux/utsname.h"
+#include "linux/syscalls.h"
+#include "asm/current.h"
+#include "asm/mman.h"
+#include "asm/uaccess.h"
+#include "asm/unistd.h"
+#include "internal.h"
+
+long sys_fork(void)
+{
+        long ret;
+
+        current->thread.forking = 1;
+        ret = do_fork(SIGCHLD, UPT_SP(&current->thread.regs.regs),
+                      &current->thread.regs, 0, NULL, NULL);
+        current->thread.forking = 0;
+        return ret;
+}
+
+long sys_vfork(void)
+{
+        long ret;
+
+        current->thread.forking = 1;
+        ret = do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
+                      UPT_SP(&current->thread.regs.regs),
+                      &current->thread.regs, 0, NULL, NULL);
+        current->thread.forking = 0;
+        return ret;
+}
 
 long old_mmap(unsigned long addr, unsigned long len,
               unsigned long prot, unsigned long flags,
@@ -26,3 +50,19 @@ long old_mmap(unsigned long addr, unsigned long len,
  out:
         return err;
 }
+
+int kernel_execve(const char *filename,
+                  const char *const argv[],
+                  const char *const envp[])
+{
+        mm_segment_t fs;
+        int ret;
+
+        fs = get_fs();
+        set_fs(KERNEL_DS);
+        ret = um_execve(filename, (const char __user *const __user *)argv,
+                        (const char __user *const __user *) envp);
+        set_fs(fs);
+
+        return ret;
+}