Preliminary BSD user emulator support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5544 c046a42c-6fe2-441c-8c8c-71466251a162
diff --git a/bsd-user/syscall_defs.h b/bsd-user/syscall_defs.h
new file mode 100644
index 0000000..4a65863
--- /dev/null
+++ b/bsd-user/syscall_defs.h
@@ -0,0 +1,108 @@
+/*      $OpenBSD: signal.h,v 1.19 2006/01/08 14:20:16 millert Exp $     */
+/*      $NetBSD: signal.h,v 1.21 1996/02/09 18:25:32 christos Exp $     */
+
+/*
+ * Copyright (c) 1982, 1986, 1989, 1991, 1993
+ *      The Regents of the University of California.  All rights reserved.
+ * (c) UNIX System Laboratories, Inc.
+ * All or some portions of this file are derived from material licensed
+ * to the University of California by American Telephone and Telegraph
+ * Co. or Unix System Laboratories, Inc. and are reproduced herein with
+ * the permission of UNIX System Laboratories, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *      @(#)signal.h    8.2 (Berkeley) 1/21/94
+ */
+
+#define TARGET_NSIG     32              /* counting 0; could be 33 (mask is 1-32) */
+
+#define TARGET_SIGHUP  1       /* hangup */
+#define TARGET_SIGINT  2       /* interrupt */
+#define TARGET_SIGQUIT 3       /* quit */
+#define TARGET_SIGILL  4       /* illegal instruction (not reset when caught) */
+#define TARGET_SIGTRAP 5       /* trace trap (not reset when caught) */
+#define TARGET_SIGABRT 6       /* abort() */
+#define TARGET_SIGIOT  SIGABRT /* compatibility */
+#define TARGET_SIGEMT  7       /* EMT instruction */
+#define TARGET_SIGFPE  8       /* floating point exception */
+#define TARGET_SIGKILL 9       /* kill (cannot be caught or ignored) */
+#define TARGET_SIGBUS  10      /* bus error */
+#define TARGET_SIGSEGV 11      /* segmentation violation */
+#define TARGET_SIGSYS  12      /* bad argument to system call */
+#define TARGET_SIGPIPE 13      /* write on a pipe with no one to read it */
+#define TARGET_SIGALRM 14      /* alarm clock */
+#define TARGET_SIGTERM 15      /* software termination signal from kill */
+#define TARGET_SIGURG  16      /* urgent condition on IO channel */
+#define TARGET_SIGSTOP 17      /* sendable stop signal not from tty */
+#define TARGET_SIGTSTP 18      /* stop signal from tty */
+#define TARGET_SIGCONT 19      /* continue a stopped process */
+#define TARGET_SIGCHLD 20      /* to parent on child stop or exit */
+#define TARGET_SIGTTIN 21      /* to readers pgrp upon background tty read */
+#define TARGET_SIGTTOU 22      /* like TTIN for output if (tp->t_local&LTOSTOP) */
+#define TARGET_SIGIO   23      /* input/output possible signal */
+#define TARGET_SIGXCPU 24      /* exceeded CPU time limit */
+#define TARGET_SIGXFSZ 25      /* exceeded file size limit */
+#define TARGET_SIGVTALRM 26    /* virtual time alarm */
+#define TARGET_SIGPROF 27      /* profiling time alarm */
+#define TARGET_SIGWINCH 28      /* window size changes */
+#define TARGET_SIGINFO  29      /* information request */
+#define TARGET_SIGUSR1 30       /* user defined signal 1 */
+#define TARGET_SIGUSR2 31       /* user defined signal 2 */
+
+/*
+ * Language spec says we must list exactly one parameter, even though we
+ * actually supply three.  Ugh!
+ */
+#define TARGET_SIG_DFL         (void (*)(int))0
+#define TARGET_SIG_IGN         (void (*)(int))1
+#define TARGET_SIG_ERR         (void (*)(int))-1
+
+#define TARGET_SA_ONSTACK       0x0001  /* take signal on signal stack */
+#define TARGET_SA_RESTART       0x0002  /* restart system on signal return */
+#define TARGET_SA_RESETHAND     0x0004  /* reset to SIG_DFL when taking signal */
+#define TARGET_SA_NODEFER       0x0010  /* don't mask the signal we're delivering */
+#define TARGET_SA_NOCLDWAIT     0x0020  /* don't create zombies (assign to pid 1) */
+#define TARGET_SA_USERTRAMP    0x0100  /* do not bounce off kernel's sigtramp */
+#define TARGET_SA_NOCLDSTOP     0x0008  /* do not generate SIGCHLD on child stop */
+#define TARGET_SA_SIGINFO       0x0040  /* generate siginfo_t */
+
+/*
+ * Flags for sigprocmask:
+ */
+#define TARGET_SIG_BLOCK       1       /* block specified signal set */
+#define TARGET_SIG_UNBLOCK     2       /* unblock specified signal set */
+#define TARGET_SIG_SETMASK     3       /* set specified signal set */
+
+#define TARGET_BADSIG          SIG_ERR
+
+#define TARGET_SS_ONSTACK       0x0001  /* take signals on alternate stack */
+#define TARGET_SS_DISABLE       0x0004  /* disable taking signals on alternate stack */
+
+#include "errno_defs.h"
+
+#include "freebsd/syscall_nr.h"
+#include "netbsd/syscall_nr.h"
+#include "openbsd/syscall_nr.h"