X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=arch%2Fxtensa%2Fkernel%2Fsyscalls.c;h=f49cb239e60394e13b6ebf6c512d7f7128295c85;hb=f30c2269544bffc7bf1b0d7c0abe5be1be83b8cb;hp=3540d8b119f39fee1d79c1df0751e96cfdcb9aad;hpb=cc14cf46da215a9df1c0a4388763a68769ef9e53;p=pandora-kernel.git

diff --git a/arch/xtensa/kernel/syscalls.c b/arch/xtensa/kernel/syscalls.c
index 3540d8b119f3..f49cb239e603 100644
--- a/arch/xtensa/kernel/syscalls.c
+++ b/arch/xtensa/kernel/syscalls.c
@@ -1,5 +1,5 @@
 /*
- * arch/xtensa/kernel/syscall.c
+ * arch/xtensa/kernel/syscalls.c
  *
  * 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
@@ -18,7 +18,6 @@
 
 #define DEBUG	0
 
-#include <linux/config.h>
 #include <linux/linkage.h>
 #include <linux/mm.h>
 #include <linux/smp.h>
@@ -42,7 +41,6 @@
 #include <asm/mman.h>
 #include <asm/shmparam.h>
 #include <asm/page.h>
-#include <asm/ipc.h>
 
 extern void do_syscall_trace(void);
 typedef int (*syscall_t)(void *a0,...);
@@ -70,8 +68,8 @@ int sys_pipe(int __user *userfds)
 /*
  * Common code for old and new mmaps.
  */
-long sys_mmap2(unsigned long addr, unsigned long len, unsigned long prot,
-	       unsigned long flags, unsigned long fd, unsigned long pgoff)
+long sys_mmap(unsigned long addr, unsigned long len, unsigned long prot,
+	      unsigned long flags, unsigned long fd, unsigned long pgoff)
 {
 	int error = -EBADF;
 	struct file * file = NULL;
@@ -130,7 +128,7 @@ out:
 
 int sys_uname(struct old_utsname * name)
 {
-	if (name && !copy_to_user(name, &system_utsname, sizeof (*name)))
+	if (name && !copy_to_user(name, utsname(), sizeof (*name)))
 		return 0;
 	return -EFAULT;
 }
@@ -268,3 +266,23 @@ void system_call (struct pt_regs *regs)
 	regs->areg[2] = res;
 	do_syscall_trace();
 }
+
+/*
+ * 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[])
+{
+	long __res;
+	asm volatile (
+		"  mov   a5, %2 \n"
+		"  mov   a4, %4 \n"
+		"  mov   a3, %3 \n"
+		"  movi  a2, %1 \n"
+		"  syscall      \n"
+		"  mov   %0, a2 \n"
+		: "=a" (__res)
+		: "i" (__NR_execve), "a" (filename), "a" (argv), "a" (envp)
+		: "a2", "a3", "a4", "a5");
+	return __res;
+}