Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/arch/v850/kernel/syscalls.c b/arch/v850/kernel/syscalls.c
new file mode 100644
index 0000000..9224cb6
--- /dev/null
+++ b/arch/v850/kernel/syscalls.c
@@ -0,0 +1,197 @@
+/*
+ * arch/v850/kernel/syscalls.c -- Various system-call definitions not
+ * defined in machine-independent code
+ *
+ * Copyright (C) 2001,02 NEC Corporation
+ * Copyright (C) 2001,02 Miles Bader <miles@gnu.org>
+ *
+ * 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.
+ *
+ * This file was derived the ppc version, arch/ppc/kernel/syscalls.c
+ * ... which was derived from "arch/i386/kernel/sys_i386.c" by Gary Thomas;
+ * modified by Cort Dougan (cort@cs.nmt.edu)
+ * and Paul Mackerras (paulus@cs.anu.edu.au).
+ */
+
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.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/utsname.h>
+#include <linux/file.h>
+
+#include <asm/uaccess.h>
+#include <asm/ipc.h>
+#include <asm/semaphore.h>
+
+/*
+ * sys_ipc() is the de-multiplexer for the SysV IPC calls..
+ *
+ * This is really horribly ugly.
+ */
+int
+sys_ipc (uint call, int first, int second, int third, void *ptr, long fifth)
+{
+ int version, ret;
+
+ version = call >> 16; /* hack for backward compatibility */
+ call &= 0xffff;
+
+ ret = -EINVAL;
+ switch (call) {
+ case SEMOP:
+ ret = sys_semop (first, (struct sembuf *)ptr, second);
+ break;
+ case SEMGET:
+ ret = sys_semget (first, second, third);
+ break;
+ case SEMCTL:
+ {
+ union semun fourth;
+
+ if (!ptr)
+ break;
+ if ((ret = access_ok(VERIFY_READ, ptr, sizeof(long)) ? 0 : -EFAULT)
+ || (ret = get_user(fourth.__pad, (void **)ptr)))
+ break;
+ ret = sys_semctl (first, second, third, fourth);
+ break;
+ }
+ case MSGSND:
+ ret = sys_msgsnd (first, (struct msgbuf *) ptr, second, third);
+ break;
+ case MSGRCV:
+ switch (version) {
+ case 0: {
+ struct ipc_kludge tmp;
+
+ if (!ptr)
+ break;
+ if ((ret = access_ok(VERIFY_READ, ptr, sizeof(tmp)) ? 0 : -EFAULT)
+ || (ret = copy_from_user(&tmp,
+ (struct ipc_kludge *) ptr,
+ sizeof (tmp))))
+ break;
+ ret = sys_msgrcv (first, tmp.msgp, second, tmp.msgtyp,
+ third);
+ break;
+ }
+ default:
+ ret = sys_msgrcv (first, (struct msgbuf *) ptr,
+ second, fifth, third);
+ break;
+ }
+ break;
+ case MSGGET:
+ ret = sys_msgget ((key_t) first, second);
+ break;
+ case MSGCTL:
+ ret = sys_msgctl (first, second, (struct msqid_ds *) ptr);
+ break;
+ case SHMAT:
+ switch (version) {
+ default: {
+ ulong raddr;
+
+ if ((ret = access_ok(VERIFY_WRITE, (ulong*) third,
+ sizeof(ulong)) ? 0 : -EFAULT))
+ break;
+ ret = do_shmat (first, (char *) ptr, second, &raddr);
+ if (ret)
+ break;
+ ret = put_user (raddr, (ulong *) third);
+ break;
+ }
+ case 1: /* iBCS2 emulator entry point */
+ if (!segment_eq(get_fs(), get_ds()))
+ break;
+ ret = do_shmat (first, (char *) ptr, second,
+ (ulong *) third);
+ break;
+ }
+ break;
+ case SHMDT:
+ ret = sys_shmdt ((char *)ptr);
+ break;
+ case SHMGET:
+ ret = sys_shmget (first, second, third);
+ break;
+ case SHMCTL:
+ ret = sys_shmctl (first, second, (struct shmid_ds *) ptr);
+ break;
+ }
+
+ return ret;
+}
+
+/*
+ * sys_pipe() is the normal C calling standard for creating
+ * a pipe. It's not the way unix traditionally does this, though.
+ */
+int sys_pipe (int *fildes)
+{
+ int fd[2];
+ int error;
+
+ error = do_pipe (fd);
+ if (!error) {
+ if (copy_to_user (fildes, fd, 2*sizeof (int)))
+ error = -EFAULT;
+ }
+ return error;
+}
+
+static inline unsigned long
+do_mmap2 (unsigned long addr, size_t len,
+ unsigned long prot, unsigned long flags,
+ unsigned long fd, unsigned long pgoff)
+{
+ struct file * file = NULL;
+ int ret = -EBADF;
+
+ flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
+ if (! (flags & MAP_ANONYMOUS)) {
+ if (!(file = fget (fd)))
+ goto out;
+ }
+
+ down_write (¤t->mm->mmap_sem);
+ ret = do_mmap_pgoff (file, addr, len, prot, flags, pgoff);
+ up_write (¤t->mm->mmap_sem);
+ if (file)
+ fput (file);
+out:
+ return ret;
+}
+
+unsigned long sys_mmap2 (unsigned long addr, size_t len,
+ unsigned long prot, unsigned long flags,
+ unsigned long fd, unsigned long pgoff)
+{
+ return do_mmap2 (addr, len, prot, flags, fd, pgoff);
+}
+
+unsigned long sys_mmap (unsigned long addr, size_t len,
+ unsigned long prot, unsigned long flags,
+ unsigned long fd, off_t offset)
+{
+ int err = -EINVAL;
+
+ if (offset & ~PAGE_MASK)
+ goto out;
+
+ err = do_mmap2 (addr, len, prot, flags, fd, offset >> PAGE_SHIFT);
+out:
+ return err;
+}