/* 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[])
/* 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__("er0");
	register char *const *_c __asm__("er3") = envp;
	register char *const *_b __asm__("er2") = argv;
	register const char * _a __asm__("er1") = filename;
	__asm__ __volatile__ ("mov.l %1,er0\n\t"
			"trapa	#0\n\t"
			: "=r" (res)
			: "g" (__NR_execve),
			  "g" (_a),
			  "g" (_b),
			  "g" (_c)
			: "cc", "memory");
	return res;
}