X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fm32r%2Fkernel%2Fsys_m32r.c;h=b4e7bcb43540444d6db2f4a56855711cc56ffe02;hb=refs%2Fremotes%2Fvserver;hp=7f66e34ea78e2ad0957c38c4abc5383c67b83b95;hpb=76828883507a47dae78837ab5dec5a5b4513c667;p=linux-2.6.git

diff --git a/arch/m32r/kernel/sys_m32r.c b/arch/m32r/kernel/sys_m32r.c
index 7f66e34ea..b4e7bcb43 100644
--- a/arch/m32r/kernel/sys_m32r.c
+++ b/arch/m32r/kernel/sys_m32r.c
@@ -7,7 +7,6 @@
  * Taken from i386 version.
  */
 
-#include <linux/config.h>
 #include <linux/errno.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
@@ -21,17 +20,18 @@
 #include <linux/mman.h>
 #include <linux/file.h>
 #include <linux/utsname.h>
-#include <linux/vs_cvirt.h>
 
 #include <asm/uaccess.h>
 #include <asm/cachectl.h>
 #include <asm/cacheflush.h>
 #include <asm/ipc.h>
+#include <asm/syscall.h>
+#include <asm/unistd.h>
 
 /*
  * sys_tas() - test-and-set
  */
-asmlinkage int sys_tas(int *addr)
+asmlinkage int sys_tas(int __user *addr)
 {
 	int oldval;
 
@@ -90,7 +90,7 @@ sys_pipe(unsigned long r0, unsigned long r1, unsigned long r2,
 
 	error = do_pipe(fd);
 	if (!error) {
-		if (copy_to_user((void *)r0, (void *)fd, 2*sizeof(int)))
+		if (copy_to_user((void __user *)r0, fd, 2*sizeof(int)))
 			error = -EFAULT;
 	}
 	return error;
@@ -201,13 +201,13 @@ asmlinkage int sys_ipc(uint call, int first, int second,
 	}
 }
 
-asmlinkage int sys_uname(struct old_utsname * name)
+asmlinkage int sys_uname(struct old_utsname __user * name)
 {
 	int err;
 	if (!name)
 		return -EFAULT;
 	down_read(&uts_sem);
-	err=copy_to_user(name, vx_new_utsname(), sizeof (*name));
+	err = copy_to_user(name, utsname(), sizeof (*name));
 	up_read(&uts_sem);
 	return err?-EFAULT:0;
 }
@@ -225,3 +225,21 @@ asmlinkage int sys_cachectl(char *addr, int nbytes, int op)
 	return -ENOSYS;
 }
 
+/*
+ * 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 long __scno __asm__ ("r7") = __NR_execve;
+	register long __arg3 __asm__ ("r2") = (long)(envp);
+	register long __arg2 __asm__ ("r1") = (long)(argv);
+	register long __res __asm__ ("r0") = (long)(filename);
+	__asm__ __volatile__ (
+		"trap #" SYSCALL_VECTOR "|| nop"
+		: "=r" (__res)
+		: "r" (__scno), "0" (__res), "r" (__arg2),
+			"r" (__arg3)
+		: "memory");
+	return __res;
+}