1 files changed, 66 insertions, 0 deletions

diff --git a/arch/sh/kernel/sys_sh64.c b/arch/sh/kernel/sys_sh64.c
new file mode 100644
index 000000000000..578004d71e02
--- /dev/null
+++ b/arch/sh/kernel/sys_sh64.c
@@ -0,0 +1,66 @@
+/*
+ * arch/sh/kernel/sys_sh64.c
+ *
+ * Copyright (C) 2000, 2001  Paolo Alberelli
+ *
+ * This file contains various random system calls that
+ * have a non-standard calling sequence on the Linux/SH5
+ * platform.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/errno.h>
+#include <linux/rwsem.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/smp.h>
+#include <linux/sem.h>
+#include <linux/msg.h>
+#include <linux/shm.h>
+#include <linux/stat.h>
+#include <linux/mman.h>
+#include <linux/file.h>
+#include <linux/utsname.h>
+#include <linux/syscalls.h>
+#include <linux/ipc.h>
+#include <asm/uaccess.h>
+#include <asm/ptrace.h>
+#include <asm/unistd.h>
+
+/*
+ * sys_pipe() is the normal C calling standard for creating
+ * a pipe. It's not the way Unix traditionally does this, though.
+ */
+asmlinkage int sys_pipe(unsigned long * fildes)
+{
+        int fd[2];
+        int error;
+
+        error = do_pipe(fd);
+        if (!error) {
+                if (copy_to_user(fildes, fd, 2*sizeof(int)))
+                        error = -EFAULT;
+        }
+        return error;
+}
+
+/*
+ * Do a system call from kernel instead of calling sys_execve so we
+ * end up with proper pt_regs.
+ */
+int kernel_execve(const char *filename, char *const argv[], char *const envp[])
+{
+        register unsigned long __sc0 __asm__ ("r9") = ((0x13 << 16) | __NR_execve);
+        register unsigned long __sc2 __asm__ ("r2") = (unsigned long) filename;
+        register unsigned long __sc3 __asm__ ("r3") = (unsigned long) argv;
+        register unsigned long __sc4 __asm__ ("r4") = (unsigned long) envp;
+        __asm__ __volatile__ ("trapa    %1 !\t\t\t execve(%2,%3,%4)"
+        : "=r" (__sc0)
+        : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) );
+        __asm__ __volatile__ ("!dummy   %0 %1 %2 %3"
+        : : "r" (__sc0), "r" (__sc2), "r" (__sc3), "r" (__sc4) : "memory");
+        return __sc0;
+}