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author | Ingo Molnar <mingo@elte.hu> | 2010-05-03 11:17:01 +0400 |
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committer | Ingo Molnar <mingo@elte.hu> | 2010-05-03 11:17:01 +0400 |
commit | 53ba4f2fa73225113a488584df0d85d3cba52943 (patch) | |
tree | d85b984d9818abc3ccc0237eb53b710d9e96c39e /arch/um/sys-i386/syscalls.c | |
parent | bd6d29c25bb1a24a4c160ec5de43e0004e01f72b (diff) | |
parent | 66f41d4c5c8a5deed66fdcc84509376c9a0bf9d8 (diff) | |
download | linux-53ba4f2fa73225113a488584df0d85d3cba52943.tar.xz |
Merge commit 'v2.6.34-rc6' into core/locking
Diffstat (limited to 'arch/um/sys-i386/syscalls.c')
-rw-r--r-- | arch/um/sys-i386/syscalls.c | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/arch/um/sys-i386/syscalls.c b/arch/um/sys-i386/syscalls.c index 857ca0b3bdef..70ca357393b8 100644 --- a/arch/um/sys-i386/syscalls.c +++ b/arch/um/sys-i386/syscalls.c @@ -12,57 +12,6 @@ #include "asm/unistd.h" /* - * Perform the select(nd, in, out, ex, tv) and mmap() system - * calls. Linux/i386 didn't use to be able to handle more than - * 4 system call parameters, so these system calls used a memory - * block for parameter passing.. - */ - -struct mmap_arg_struct { - unsigned long addr; - unsigned long len; - unsigned long prot; - unsigned long flags; - unsigned long fd; - unsigned long offset; -}; - -extern int old_mmap(unsigned long addr, unsigned long len, - unsigned long prot, unsigned long flags, - unsigned long fd, unsigned long offset); - -long old_mmap_i386(struct mmap_arg_struct __user *arg) -{ - struct mmap_arg_struct a; - int err = -EFAULT; - - if (copy_from_user(&a, arg, sizeof(a))) - goto out; - - err = old_mmap(a.addr, a.len, a.prot, a.flags, a.fd, a.offset); - out: - return err; -} - -struct sel_arg_struct { - unsigned long n; - fd_set __user *inp; - fd_set __user *outp; - fd_set __user *exp; - struct timeval __user *tvp; -}; - -long old_select(struct sel_arg_struct __user *arg) -{ - struct sel_arg_struct a; - - if (copy_from_user(&a, arg, sizeof(a))) - return -EFAULT; - /* sys_select() does the appropriate kernel locking */ - return sys_select(a.n, a.inp, a.outp, a.exp, a.tvp); -} - -/* * The prototype on i386 is: * * int clone(int flags, void * child_stack, int * parent_tidptr, struct user_desc * newtls, int * child_tidptr) @@ -85,92 +34,6 @@ long sys_clone(unsigned long clone_flags, unsigned long newsp, return ret; } -/* - * sys_ipc() is the de-multiplexer for the SysV IPC calls.. - * - * This is really horribly ugly. - */ -long sys_ipc (uint call, int first, int second, - int third, void __user *ptr, long fifth) -{ - int version, ret; - - version = call >> 16; /* hack for backward compatibility */ - call &= 0xffff; - - switch (call) { - case SEMOP: - return sys_semtimedop(first, (struct sembuf __user *) ptr, - second, NULL); - case SEMTIMEDOP: - return sys_semtimedop(first, (struct sembuf __user *) ptr, - second, - (const struct timespec __user *) fifth); - case SEMGET: - return sys_semget (first, second, third); - case SEMCTL: { - union semun fourth; - if (!ptr) - return -EINVAL; - if (get_user(fourth.__pad, (void __user * __user *) ptr)) - return -EFAULT; - return sys_semctl (first, second, third, fourth); - } - - case MSGSND: - return sys_msgsnd (first, (struct msgbuf *) ptr, - second, third); - case MSGRCV: - switch (version) { - case 0: { - struct ipc_kludge tmp; - if (!ptr) - return -EINVAL; - - if (copy_from_user(&tmp, - (struct ipc_kludge *) ptr, - sizeof (tmp))) - return -EFAULT; - return sys_msgrcv (first, tmp.msgp, second, - tmp.msgtyp, third); - } - default: - panic("msgrcv with version != 0"); - return sys_msgrcv (first, - (struct msgbuf *) ptr, - second, fifth, third); - } - case MSGGET: - return sys_msgget ((key_t) first, second); - case MSGCTL: - return sys_msgctl (first, second, (struct msqid_ds *) ptr); - - case SHMAT: - switch (version) { - default: { - ulong raddr; - ret = do_shmat (first, (char *) ptr, second, &raddr); - if (ret) - return ret; - return put_user (raddr, (ulong *) third); - } - case 1: /* iBCS2 emulator entry point */ - if (!segment_eq(get_fs(), get_ds())) - return -EINVAL; - return do_shmat (first, (char *) ptr, second, (ulong *) third); - } - case SHMDT: - return sys_shmdt ((char *)ptr); - case SHMGET: - return sys_shmget (first, second, third); - case SHMCTL: - return sys_shmctl (first, second, - (struct shmid_ds *) ptr); - default: - return -ENOSYS; - } -} - long sys_sigaction(int sig, const struct old_sigaction __user *act, struct old_sigaction __user *oact) { |