5cacdb4add
Add generic implementations of the old and really old uname system calls. Note that sh only implements sys_olduname but not sys_oldolduname, but I'm not going to bother with another ifdef for that special case. m32r implemented an old uname but never wired it up, so kill it, too. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Jeff Dike <jdike@addtoit.com> Cc: Hirokazu Takata <takata@linux-m32r.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: James Morris <jmorris@namei.org> Cc: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
/*
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* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
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* Licensed under the GPL
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*/
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#include "linux/file.h"
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#include "linux/fs.h"
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#include "linux/mm.h"
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#include "linux/sched.h"
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#include "linux/utsname.h"
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#include "linux/syscalls.h"
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#include "asm/current.h"
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#include "asm/mman.h"
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#include "asm/uaccess.h"
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#include "asm/unistd.h"
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#include "internal.h"
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long sys_fork(void)
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{
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long ret;
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current->thread.forking = 1;
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ret = do_fork(SIGCHLD, UPT_SP(¤t->thread.regs.regs),
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¤t->thread.regs, 0, NULL, NULL);
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current->thread.forking = 0;
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return ret;
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}
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long sys_vfork(void)
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{
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long ret;
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current->thread.forking = 1;
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ret = do_fork(CLONE_VFORK | CLONE_VM | SIGCHLD,
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UPT_SP(¤t->thread.regs.regs),
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¤t->thread.regs, 0, NULL, NULL);
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current->thread.forking = 0;
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return ret;
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}
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long old_mmap(unsigned long addr, unsigned long len,
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unsigned long prot, unsigned long flags,
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unsigned long fd, unsigned long offset)
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{
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long err = -EINVAL;
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if (offset & ~PAGE_MASK)
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goto out;
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err = sys_mmap_pgoff(addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
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out:
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return err;
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}
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int kernel_execve(const char *filename, char *const argv[], char *const envp[])
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{
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mm_segment_t fs;
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int ret;
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fs = get_fs();
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set_fs(KERNEL_DS);
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ret = um_execve((char *)filename, (char __user *__user *)argv,
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(char __user *__user *) envp);
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set_fs(fs);
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return ret;
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}
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