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Diffstat (limited to 'arch/m68k/kernel/sys_m68k.c')
-rw-r--r--arch/m68k/kernel/sys_m68k.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c
index 143c552d38f..90238a8c9e1 100644
--- a/arch/m68k/kernel/sys_m68k.c
+++ b/arch/m68k/kernel/sys_m68k.c
@@ -27,6 +27,7 @@
#include <asm/traps.h>
#include <asm/ipc.h>
#include <asm/page.h>
+#include <asm/unistd.h>
/*
* sys_pipe() is the normal C calling standard for creating
@@ -663,3 +664,18 @@ asmlinkage int sys_getpagesize(void)
{
return PAGE_SIZE;
}
+
+/*
+ * 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 __res asm ("%d0") = __NR_execve;
+ register long __a asm ("%d1") = (long)(filename);
+ register long __b asm ("%d2") = (long)(argv);
+ register long __c asm ("%d3") = (long)(envp);
+ asm volatile ("trap #0" : "+d" (__res)
+ : "d" (__a), "d" (__b), "d" (__c));
+ return __res;
+}