initial import

23 files changed, 759 insertions, 0 deletions

diff --git a/sysdeps/unix/bsd/ultrix4/Dist b/sysdeps/unix/bsd/ultrix4/Dist
new file mode 100644
index 0000000000..6745cd4b04
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/Dist
@@ -0,0 +1 @@
+getsysinfo.S
diff --git a/sysdeps/unix/bsd/ultrix4/Implies b/sysdeps/unix/bsd/ultrix4/Implies
new file mode 100644
index 0000000000..b0e08ef1db
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/Implies
@@ -0,0 +1,2 @@
+# Ultrix 4 has the canonical set of <sys/mman.h> system calls.
+unix/mman
diff --git a/sysdeps/unix/bsd/ultrix4/Makefile b/sysdeps/unix/bsd/ultrix4/Makefile
new file mode 100644
index 0000000000..26b90346ee
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/Makefile
@@ -0,0 +1,3 @@
+ifeq ($(subdir),posix)
+sysdep_routines := $(sysdep_routines) getsysinfo
+endif
diff --git a/sysdeps/unix/bsd/ultrix4/fcntlbits.h b/sysdeps/unix/bsd/ultrix4/fcntlbits.h
new file mode 100644
index 0000000000..bf8e7b2a35
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/fcntlbits.h
@@ -0,0 +1,125 @@
+/* O_*, F_*, FD_* bit values for Ultrix 4.
+Copyright (C) 1991, 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#ifndef	_FCNTLBITS_H
+
+#define	_FCNTLBITS_H	1
+
+
+/* File access modes for `open' and `fcntl'.  */
+#define	O_RDONLY	0	/* Open read-only.  */
+#define	O_WRONLY	1	/* Open write-only.  */
+#define	O_RDWR		2	/* Open read/write.  */
+
+
+/* Bits OR'd into the second argument to open.  */
+#define	O_CREAT		0x0200	/* Create file if it doesn't exist.  */
+#define	O_EXCL		0x0800	/* Fail if file already exists.  */
+#define	O_TRUNC		0x0400	/* Truncate file to zero length.  */
+#ifdef	__USE_MISC
+#define	O_ASYNC		0x0040	/* Send SIGIO to owner when data is ready.  */
+#define	O_FSYNC		0x8000	/* Synchronous writes.  */
+#define	O_SYNC		O_FSYNC
+#define	O_BLKINUSE	0x1000	/* Block if "in use".  */
+#define	O_BLKANDSET	0x3000	/* Block, test and set "in use" flag.  */
+#define	O_TERMIO	0x40000	/* "termio style program".  */
+#endif
+#define	O_NOCTTY	0x80000	/* Don't assign a controlling terminal.  */
+
+/* File status flags for `open' and `fcntl'.  */
+#define	O_APPEND	0x0008	/* Writes append to the file.  */
+#define	O_NONBLOCK	0x20000	/* Non-blocking I/O.  */
+
+#ifdef __USE_BSD
+#define	O_NDELAY	0x0004
+#endif
+
+#ifdef __USE_BSD
+/* Bits in the file status flags returned by F_GETFL.
+   These are all the O_* flags, plus FREAD and FWRITE, which are
+   independent bits set by which of O_RDONLY, O_WRONLY, and O_RDWR, was
+   given to `open'.  */
+#define FREAD		1
+#define	FWRITE		2
+
+/* Traditional BSD names the O_* bits.  */
+#define FASYNC		O_ASYNC
+#define FCREAT		O_CREAT
+#define FEXCL		O_EXCL
+#define FTRUNC		O_TRUNC
+#define FNOCTTY		O_NOCTTY
+#define FFSYNC		O_FSYNC
+#define FSYNC		O_SYNC
+#define FAPPEND		O_APPEND
+#define FNONBLOCK	O_NONBLOCK
+#define FNDELAY		O_NDELAY
+#define	FNBLOCK		O_NONBLOCK
+#define	FTERMIO		O_TERMIO
+#define	FNOCTTY		O_NOCTTY
+#define	FSYNCRON	O_FSYNC
+#define	FBLKINUSE	O_BLKINUSE
+#define FBLKANDSET	O_BLKANDSET
+#endif
+
+/* Mask for file access modes.  This is system-dependent in case
+   some system ever wants to define some other flavor of access.  */
+#define	O_ACCMODE	(O_RDONLY|O_WRONLY|O_RDWR)
+
+/* Values for the second argument to `fcntl'.  */
+#define	F_DUPFD	  	0	/* Duplicate file descriptor.  */
+#define	F_GETFD		1	/* Get file descriptor flags.  */
+#define	F_SETFD		2	/* Set file descriptor flags.  */
+#define	F_GETFL		3	/* Get file status flags.  */
+#define	F_SETFL		4	/* Set file status flags.  */
+#ifdef __USE_BSD
+#define	F_GETOWN	5	/* Get owner (receiver of SIGIO).  */
+#define	F_SETOWN	6	/* Set owner (receiver of SIGIO).  */
+#endif
+#define	F_GETLK		7	/* Get record locking info.  */
+#define	F_SETLK		8	/* Set record locking info (non-blocking).  */
+#define	F_SETLKW	9	/* Set record locking info (blocking).  */
+#ifdef	__USE_MISC
+#define	F_SETSYN	10	/* Set synchronous writing.  */
+#define	F_CLRSYN	10	/* Clear synchronous writing.  */
+#endif
+
+/* File descriptor flags used with F_GETFD and F_SETFD.  */
+#define	FD_CLOEXEC	1	/* Close on exec.  */
+
+
+#include <gnu/types.h>
+
+/* The structure describing an advisory lock.  This is the type of the third
+   argument to `fcntl' for the F_GETLK, F_SETLK, and F_SETLKW requests.  */
+struct flock
+  {
+    short int l_type;	/* Type of lock: F_RDLCK, F_WRLCK, or F_UNLCK.  */
+    short int l_whence;	/* Where `l_start' is relative to (like `lseek').  */
+    __off_t l_start;	/* Offset where the lock begins.  */
+    __off_t l_len;	/* Size of the locked area; zero means until EOF.  */
+    __pid_t l_pid;	/* Process holding the lock.  */
+  };
+
+/* Values for the `l_type' field of a `struct flock'.  */
+#define	F_RDLCK	1	/* Read lock.  */
+#define	F_WRLCK	2	/* Write lock.  */
+#define	F_UNLCK	3	/* Remove lock.  */
+
+
+#endif	/* fcntlbits.h */
diff --git a/sysdeps/unix/bsd/ultrix4/getdents.S b/sysdeps/unix/bsd/ultrix4/getdents.S
new file mode 100644
index 0000000000..be449b2bcb
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/getdents.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/sun/getdents.S>
diff --git a/sysdeps/unix/bsd/ultrix4/getsysinfo.S b/sysdeps/unix/bsd/ultrix4/getsysinfo.S
new file mode 100644
index 0000000000..1f5b2cf487
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/getsysinfo.S
@@ -0,0 +1,25 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+   Contributed by Ian Lance Taylor (ian@airs.com).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* Get various sorts of information about the system.
+   This is an Ultrix only call.  */
+
+#include <sysdep.h>
+
+SYSCALL__ (getsysinfo, 5)
+	ret
diff --git a/sysdeps/unix/bsd/ultrix4/mips/Dist b/sysdeps/unix/bsd/ultrix4/mips/Dist
new file mode 100644
index 0000000000..c2e8abb84d
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/mips/Dist
@@ -0,0 +1 @@
+sigtramp.c __handler.S
diff --git a/sysdeps/unix/bsd/ultrix4/mips/Makefile b/sysdeps/unix/bsd/ultrix4/mips/Makefile
new file mode 100644
index 0000000000..0b71fd9e18
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/mips/Makefile
@@ -0,0 +1,3 @@
+ifeq ($(subdir),signal)
+sysdep_routines := $(sysdep_routines) sigtramp __handler
+endif
diff --git a/sysdeps/unix/bsd/ultrix4/mips/__handler.S b/sysdeps/unix/bsd/ultrix4/mips/__handler.S
new file mode 100644
index 0000000000..3ea697c5a0
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/mips/__handler.S
@@ -0,0 +1,113 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+   Also hacked by Ian Lance Taylor (ian@airs.com).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+/* This function saves all the registers, calls the
+   user function, and then executes a sigreturn system call.  The
+   sigreturn call wants the address of a sigcontext structure.  This
+   is all hideously system dependent and, for all intents and
+   purposes, undocumented.
+
+   When we enter here, a3 holds the user's signal handler.  We are
+   supposed to fill in the context given in a2, and then pass it and
+   the first two arguments to the user's function.  If the user's
+   function returns, we execute a sigreturn system call.
+
+   The sc_onstack, sc_mask and sc_pc elements of the context are
+   already set by the kernel.  For some reason we don't have to save
+   the floating point state or the coprocessor state; the kernel may
+   have saved them for us, or it doesn't use them.  */
+
+.set noat
+ENTRY (__handler)
+	/* Store zero and the asm temp reg.  */
+	sw $0, 12(a2)
+	sw AT, 16(a2)
+
+	/* Put v1 in sc_regs[3].  */
+	sw v1, 24(a2)
+
+	/* Save the caller saved registers in sc_regs[8..15].  */
+	sw t0, 44(a2)
+	sw t1, 48(a2)
+	sw t2, 52(a2)
+	sw t3, 56(a2)
+	sw t4, 60(a2)
+	sw t5, 64(a2)
+	sw t6, 68(a2)
+	sw t7, 72(a2)
+
+	/* Save the callee saved registers in sc_regs[16..23].  */
+	sw s0, 76(a2)
+	sw s1, 80(a2)
+	sw s2, 84(a2)
+	sw s3, 88(a2)
+	sw s4, 92(a2)
+	sw s5, 96(a2)
+	sw s6, 100(a2)
+	sw s7, 104(a2)
+
+	/* Save the code generator registers in sc_regs[24] & sc_regs[25].  */
+	sw t8, 108(a2)
+	sw t9, 112(a2)
+
+	/* Save the kernel temp regs in sc_regs[26] & sc_regs[27]. */
+	sw k0, 116(a2)
+	sw k1, 120(a2)
+
+	/* Save the global pointer in sc_regs[28].  */
+	sw gp, 124(a2)
+
+	/* ... and also the return address in sc_regs[31].  */
+	sw ra, 136(a2)
+
+	/* Note: we don't save the stack pointer in sc_regs[29];
+	   instead, we use the one that was already there.  */
+#if 0
+	sw sp, 128(a2)
+#endif
+
+	/* Save the floating pointer in sc_regs[30].  */
+	sw $fp, 132(a2)
+
+	/* Save the mul/div stuff in sc_mdlo and sc_mdhi.  */
+	mflo t0
+	sw t0, 140(a2)
+	mfhi t0
+	sw t0, 144(a2)
+
+	/* Move the stack up four.  This will save the context.  */
+	addu sp, sp, -32
+	sw a2, 16(sp)
+
+	/* Call their handler with the signal, code, and context; note
+	   this will clobber the context.  */
+	.set noreorder
+	jal ra, a3
+	nop
+	.set reorder
+
+	/* When we come back, restore the context and pass it right
+	   on into sigreturn().  */
+	lw a0, 16(sp)
+
+	/* Do a sigreturn syscall; this doesn't return.  */
+	la v0, __sigreturn
+	jal ra, v0
diff --git a/sysdeps/unix/bsd/ultrix4/mips/sigcontext.h b/sysdeps/unix/bsd/ultrix4/mips/sigcontext.h
new file mode 100644
index 0000000000..4bddcf2f4b
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/mips/sigcontext.h
@@ -0,0 +1,60 @@
+/* Copyright (C) 1992, 1994 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* Note that ANY change to this instantly implies a change to __handler.S.  */
+
+struct sigcontext
+  {
+    /* Nonzero if running on signal stack.  */
+    int sc_onstack;
+    
+    /* Signal mask to restore.  */
+    __sigset_t sc_mask;
+    
+    /* Program counter when the signal hit.  */
+    __ptr_t sc_pc;
+    
+    /* Registers 0 through 31.  */
+    int sc_regs[32];
+    
+    /* mul/div low and hi; these aren't part of a jmp_buf, but are part of the
+       sigcontext and are referenced from the signal trampoline code.  */
+    int sc_mdlo;
+    int sc_mdhi;
+    
+    /* Flag to see if the FP's been used.  */
+    int sc_ownedfp;
+    
+    /* Floating point registers 0 to 31.  */
+    int sc_fpregs[32];
+    /* Control & status register for FP.  */
+    int sc_fpc_csr;
+    
+    /* Exception instruction register for FP. */
+    int sc_fpc_eir;
+    
+    /* The coprocessor's cause register.  */
+    int sc_cause;
+    
+    /* CPU bad virtual address.  */
+    __ptr_t sc_badvaddr;
+    
+    /* CPU board bad physical address.  */
+    __ptr_t sc_badpaddr;
+  };
+
diff --git a/sysdeps/unix/bsd/ultrix4/mips/sigtramp.c b/sysdeps/unix/bsd/ultrix4/mips/sigtramp.c
new file mode 100644
index 0000000000..1bb208dd8b
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/mips/sigtramp.c
@@ -0,0 +1,55 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* The sigvec system call on MIPS Ultrix takes an additional
+   parameter, which is the address that is actually called when the
+   signal occurs.
+
+   When a signal occurs, we arrange for the kernel to call __handler.
+   That will save the frame and stack pointers into the context, and
+   then jump to this routine.  See __handler.S.
+
+   This code is based on sysdeps/unix/bsd/sun4/sigtramp.c, but it's
+   different because since we get passed the user signal handler we
+   don't actually need a trampoline.  */
+
+#include <ansidecl.h>
+#include <signal.h>
+#include <stddef.h>
+#include <errno.h>
+
+/* The user's signal handler is called with three arguments.  */
+typedef void (*handler_type) (int sig, int code, struct sigcontext *);
+
+/* Defined in __raw_sigvec.S.  */
+extern int EXFUN(__raw_sigvec, (int sig, CONST struct sigvec *vec,
+				struct sigvec *ovec,
+				void (*)(int sig, int code,
+					 struct sigcontext *,
+					 handler_type)));
+
+extern void EXFUN(__handler, (int sig, int code,
+			      struct sigcontext *,
+			      handler_type));
+
+int
+DEFUN(__sigvec, (sig, vec, ovec),
+      int sig AND CONST struct sigvec *vec AND struct sigvec *ovec)
+{
+  return __raw_sigvec (sig, vec, ovec, __handler);
+}
diff --git a/sysdeps/unix/bsd/ultrix4/mips/sigvec.S b/sysdeps/unix/bsd/ultrix4/mips/sigvec.S
new file mode 100644
index 0000000000..20a5dd1c49
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/mips/sigvec.S
@@ -0,0 +1,24 @@
+/* Copyright (C) 1991, 1992, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+/* __sigvec is defined by sigtramp.c.  */
+
+PSEUDO (__raw_sigvec, sigvec, 3)
+	ret
diff --git a/sysdeps/unix/bsd/ultrix4/mips/start.S b/sysdeps/unix/bsd/ultrix4/mips/start.S
new file mode 100644
index 0000000000..ec0f9d833d
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/mips/start.S
@@ -0,0 +1,77 @@
+/* Copyright (C) 1993, 1995 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+#ifndef HAVE_WEAK_SYMBOLS
+#define __environ environ
+#else
+weak_alias (__environ, environ)
+#endif
+
+.comm __environ,	4
+.comm errno,		4
+
+ENTRY(__start)
+  .set noreorder
+
+  /* The first thing on the stack is argc.  */
+  lw s0, 0(sp)
+  nop
+
+  /* Set up the global pointer.  */
+  la gp, _gp
+
+  /* Then set up argv.  */
+  addiu s1, sp, 4
+
+  /* To compute where envp is, first we have to jump ahead four
+     bytes from what argv was.  This will bring us ahead, so we don't
+     need to compute the NULL at the end of argv later.  */
+  addiu v1, s1, 4
+
+  /* Now, compute the space to skip given the number of arguments
+     we've got.  We do this by multiplying argc by 4.  */
+  sll v0, s0, 2
+
+  /* Now, add (argv+4) with the space to skip...that's envp.  */
+  addu s2, v1, v0
+
+  /* __environ = envp; */
+  sw s2, __environ
+
+  addiu sp, sp, -24
+
+  /* __libc_init (argc, argv, envp); */
+  move a0, s0
+  move a1, s1
+  jal __libc_init
+  move a2, s2
+
+  /* errno = 0; */
+  sw zero, errno
+
+  /* exit (main (argc, argv, envp)); */
+  move a0, s0
+  move a1, s1
+  jal main
+  move a2, s2
+
+  /* Make the value returned by main be the argument to exit.  */
+  jal exit
+  move a0, v0
diff --git a/sysdeps/unix/bsd/ultrix4/mips/vfork.S b/sysdeps/unix/bsd/ultrix4/mips/vfork.S
new file mode 100644
index 0000000000..37f6d8016d
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/mips/vfork.S
@@ -0,0 +1,33 @@
+/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+#ifndef        SYS_vfork
+#define        SYS_vfork      66
+#endif
+
+SYSCALL__ (vfork, 0)
+	beq v1, zero, parent /* Branch if parent.  */
+	nop
+	move v0, zero
+parent:
+	ret
+	nop
+
+weak_alias (__vfork, vfork)
diff --git a/sysdeps/unix/bsd/ultrix4/posix_opt.h b/sysdeps/unix/bsd/ultrix4/posix_opt.h
new file mode 100644
index 0000000000..ecd04d1f0e
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/posix_opt.h
@@ -0,0 +1,23 @@
+/* Copyright (C) 1992 Free Software Foundation, Inc.
+   Contributed by Ian Lance Taylor (ian@airs.com).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#define	_POSIX_JOB_CONTROL	1
+#define	_POSIX_SAVED_IDS	1
+#define	_POSIX_CHOWN_RESTRICTED	1
+#define	_POSIX_NO_TRUNC		1
+#define	_POSIX_VDISABLE		((unsigned char) -1)
diff --git a/sysdeps/unix/bsd/ultrix4/setsid.S b/sysdeps/unix/bsd/ultrix4/setsid.S
new file mode 100644
index 0000000000..4930c56dcf
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/setsid.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/bsd4.4/setsid.S>
diff --git a/sysdeps/unix/bsd/ultrix4/sys/mman.h b/sysdeps/unix/bsd/ultrix4/sys/mman.h
new file mode 100644
index 0000000000..c850b4f7c8
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/sys/mman.h
@@ -0,0 +1,99 @@
+/* Definitions for BSD-style memory management.  Ultrix 4 version.
+Copyright (C) 1994 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* These are the bits used by 4.4 BSD and its derivatives.  On systems
+   (such as GNU) where these facilities are not system services but can be
+   emulated in the C library, these are the definitions we emulate.  */
+
+#ifndef	_SYS_MMAN_H
+
+#define	_SYS_MMAN_H	1
+#include <features.h>
+
+#include <gnu/types.h>
+#define __need_size_t
+#include <stddef.h>
+
+
+/* Protections are chosen from these bits, OR'd together.  The
+   implementation does not necessarily support PROT_EXEC or PROT_WRITE
+   without PROT_READ.  The only guarantees are that no writing will be
+   allowed without PROT_WRITE and no access will be allowed for PROT_NONE. */
+
+#define	PROT_NONE	0x00	/* No access.  */
+#define	PROT_READ	0x01	/* Pages can be read.  */
+#define	PROT_WRITE	0x02	/* Pages can be written.  */
+#define	PROT_EXEC	0x04	/* Pages can be executed.  */
+
+
+/* Sharing types (must choose one and only one of these).  */
+#define	MAP_SHARED	0x01	/* Share changes.  */
+#define	MAP_PRIVATE	0x02	/* Changes private; copy pages on write.  */
+#define	MAP_TYPE	0x0f	/* Mask for sharing type.  */
+
+/* Other flags.  */
+#define	MAP_FIXED	0x10	/* Map address must be exactly as requested. */
+
+/* Advice to `madvise'.  */
+#define	MADV_NORMAL	0	/* No further special treatment.  */
+#define	MADV_RANDOM	1	/* Expect random page references.  */
+#define	MADV_SEQUENTIAL	2	/* Expect sequential page references.  */
+#define	MADV_WILLNEED	3	/* Will need these pages.  */
+#define	MADV_DONTNEED	4	/* Don't need these pages.  */
+
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+/* Map addresses starting near ADDR and extending for LEN bytes.  from
+   OFFSET into the file FD describes according to PROT and FLAGS.  If ADDR
+   is nonzero, it is the desired mapping address.  If the MAP_FIXED bit is
+   set in FLAGS, the mapping will be at ADDR exactly (which must be
+   page-aligned); otherwise the system chooses a convenient nearby address.
+   The return value is the actual mapping address chosen or (caddr_t) -1
+   for errors (in which case `errno' is set).  A successful `mmap' call
+   deallocates any previous mapping for the affected region.  */
+
+__caddr_t mmap __P ((__caddr_t __addr, size_t __len,
+		     int __prot, int __flags, int __fd, off_t __offset));
+
+/* Deallocate any mapping for the region starting at ADDR and extending LEN
+   bytes.  Returns 0 if successful, -1 for errors (and sets errno).  */
+int munmap __P ((__caddr_t __addr, size_t __len));
+
+/* Change the memory protection of the region starting at ADDR and
+   extending LEN bytes to PROT.  Returns 0 if successful, -1 for errors
+   (and sets errno).  */
+int mprotect __P ((__caddr_t __addr, size_t __len, int __prot));
+
+/* Ultrix 4 does not implement `msync' or `madvise'.  */
+
+/* Synchronize the region starting at ADDR and extending LEN bytes with the
+   file it maps.  Filesystem operations on a file being mapped are
+   unpredictable before this is done.  */
+int msync __P ((caddr_t __addr, size_t __len));
+
+/* Advise the system about particular usage patterns the program follows
+   for the region starting at ADDR and extending LEN bytes.  */
+int madvise __P ((__caddr_t __addr, size_t __len, int __advice));
+
+__END_DECLS
+
+
+#endif	/* sys/mman.h */
diff --git a/sysdeps/unix/bsd/ultrix4/sysconf.c b/sysdeps/unix/bsd/ultrix4/sysconf.c
new file mode 100644
index 0000000000..a9f3c5bbbe
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/sysconf.c
@@ -0,0 +1,61 @@
+/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
+   Contributed by Ian Lance Taylor (ian@airs.com).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+/* On Ultrix we can use the getsysinfo call to get the right return
+   value for _SC_CHILD_MAX.  Everything else is from <sys/param.h>,
+   which the default sysconf already knows how to handle.  */
+
+#include <ansidecl.h>
+#include <unistd.h>
+#include <errno.h>
+
+/* This is an Ultrix header file.  */
+#include <sys/sysinfo.h>
+
+extern int EXFUN(__getsysinfo, (unsigned int op, void *buffer,
+				size_t nbytes, int *start,
+				void *arg));
+extern long int EXFUN(__default_sysconf, (int name));
+
+long int
+DEFUN(__sysconf, (name), int name)
+{
+  if (name == _SC_CHILD_MAX)
+    {
+      int save = errno;
+      int start = 0;
+      int ret;
+
+      /* getsysinfo returns the number of values it put into the
+	 buffer, or 0 if not available, or -1 on error.  */
+      if (__getsysinfo (GSI_MAX_UPROCS, &ret, sizeof (ret), &start,
+			(void *) 0) > 0)
+	{
+	  errno = save;
+	  return ret;
+	}
+
+      errno = save;
+    }
+
+  return __default_sysconf (name);
+}
+
+#define __sysconf __default_sysconf
+
+#include <sysdeps/posix/sysconf.c>
diff --git a/sysdeps/unix/bsd/ultrix4/system.c b/sysdeps/unix/bsd/ultrix4/system.c
new file mode 100644
index 0000000000..b133fe77c0
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/system.c
@@ -0,0 +1,2 @@
+/* Ultrix 4 does have `waitpid'.  Avoid unix/system.c, which says we don't.  */
+#include <sysdeps/posix/system.c>
diff --git a/sysdeps/unix/bsd/ultrix4/uname.S b/sysdeps/unix/bsd/ultrix4/uname.S
new file mode 100644
index 0000000000..488eeb1d97
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/uname.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/uname.S>
diff --git a/sysdeps/unix/bsd/ultrix4/utsnamelen.h b/sysdeps/unix/bsd/ultrix4/utsnamelen.h
new file mode 100644
index 0000000000..ad4389ab02
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/utsnamelen.h
@@ -0,0 +1 @@
+#define _UTSNAME_LENGTH 32
diff --git a/sysdeps/unix/bsd/ultrix4/wait3.S b/sysdeps/unix/bsd/ultrix4/wait3.S
new file mode 100644
index 0000000000..83910a5d7b
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/wait3.S
@@ -0,0 +1,24 @@
+/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL__ (wait3, 3)
+	ret
+
+weak_alias (__wait3, wait3)
diff --git a/sysdeps/unix/bsd/ultrix4/waitpid.S b/sysdeps/unix/bsd/ultrix4/waitpid.S
new file mode 100644
index 0000000000..b64e528b69
--- /dev/null
+++ b/sysdeps/unix/bsd/ultrix4/waitpid.S
@@ -0,0 +1,24 @@
+/* Copyright (C) 1992, 1995 Free Software Foundation, Inc.
+   Contributed by Brendan Kehoe (brendan@zen.org).
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB.  If
+not, write to the Free Software Foundation, Inc., 675 Mass Ave,
+Cambridge, MA 02139, USA.  */
+
+#include <sysdep.h>
+
+SYSCALL__ (waitpid, 3)
+	ret
+
+weak_alias (__waitpid, waitpid)