/* * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2007-2009 PetaLogix * Copyright (C) 2007 John Williams <john.williams@petalogix.com> * * Copyright (C) 2006 Atmark Techno, Inc. *	Yasushi SHOJI <yashi@atmark-techno.com> *	Tetsuya OHKAWA <tetsuya@atmark-techno.com> * * 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 * for more details. */ #include <linux/errno.h>#include <linux/mm.h>#include <linux/smp.h>#include <linux/syscalls.h>#include <linux/sem.h>#include <linux/msg.h>#include <linux/shm.h>#include <linux/stat.h>#include <linux/mman.h>#include <linux/sys.h>#include <linux/ipc.h>#include <linux/file.h>#include <linux/module.h>#include <linux/err.h>#include <linux/fs.h>#include <linux/semaphore.h>#include <linux/uaccess.h>#include <linux/unistd.h>#include <linux/slab.h> #include <asm/syscalls.h> asmlinkage long microblaze_vfork(struct pt_regs *regs){	return do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD, regs->r1,						regs, 0, NULL, NULL);} asmlinkage long microblaze_clone(int flags, unsigned long stack,							struct pt_regs *regs){	if (!stack)		stack = regs->r1;	return do_fork(flags, stack, regs, 0, NULL, NULL);} asmlinkage long microblaze_execve(const char __user *filenamei,				  const char __user *const __user *argv,				  const char __user *const __user *envp,				  struct pt_regs *regs){	int error;	char *filename; 	filename = getname(filenamei);	error = PTR_ERR(filename);	if (IS_ERR(filename))		goto out;	error = do_execve(filename, argv, envp, regs);	putname(filename);out:	return error;} asmlinkage long sys_mmap(unsigned long addr, unsigned long len,			unsigned long prot, unsigned long flags,			unsigned long fd, off_t pgoff){	if (pgoff & ~PAGE_MASK)		return -EINVAL; 	return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT);} /* * 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[]){	register const char *__a __asm__("r5") = filename;	register const void *__b __asm__("r6") = argv;	register const void *__c __asm__("r7") = envp;	register unsigned long __syscall __asm__("r12") = __NR_execve;	register unsigned long __ret __asm__("r3");	__asm__ __volatile__ ("brki r14, 0x8"			: "=r" (__ret), "=r" (__syscall)			: "1" (__syscall), "r" (__a), "r" (__b), "r" (__c)			: "r4", "r8", "r9",			"r10", "r11", "r14", "cc", "memory");	return __ret;}