1 files changed, 40 insertions, 0 deletions

diff --git a/arch/x86/kernel/sys_i386_32.c b/arch/x86/kernel/sys_i386_32.c
new file mode 100644
index 00000000000..0b0cb5fede1
--- /dev/null
+++ b/arch/x86/kernel/sys_i386_32.c
@@ -0,0 +1,40 @@
+/*
+ * This file contains various random system calls that
+ * have a non-standard calling sequence on the Linux/i386
+ * platform.
+ */
+
+#include <linux/errno.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/syscalls.h>
+#include <linux/mman.h>
+#include <linux/file.h>
+#include <linux/utsname.h>
+#include <linux/ipc.h>
+
+#include <linux/uaccess.h>
+#include <linux/unistd.h>
+
+#include <asm/syscalls.h>
+
+/*
+ * 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,
+                  const char *const argv[],
+                  const char *const envp[])
+{
+        long __res;
+        asm volatile ("int $0x80"
+        : "=a" (__res)
+        : "0" (__NR_execve), "b" (filename), "c" (argv), "d" (envp) : "memory");
+        return __res;
+}