[Git][cmucl/cmucl][rtoy-issue-76-add-ansi-tests-to-ci] 18 commits: Fix #84: Remove code/unix-glibc2.lisp

29 Aug 2020


      Raymond Toy pushed to branch rtoy-issue-76-add-ansi-tests-to-ci at cmucl / cmucl
Commits:
00679e6b by Raymond Toy at 2020-08-25T22:05:21-07:00
Fix #84: Remove code/unix-glibc2.lisp
This isn&#39;t referenced in worldcom or worldbuild anymore so we can
safely remove this.  Most of the required functionality was moved to
code/unix.lisp some time ago, so this isn&#39;t needed anymore.
Whatever functionality that is still left is in
contrib/unix/unix-glibc2.lisp, which we aren&#39;t removing.
- - - - -
60d0d7bb by Raymond Toy at 2020-08-26T05:15:09+00:00
Merge branch &#39;rtoy-issue-84-remove-unix-glibc2&#39; into &#39;master&#39;
Fix #84: Remove code/unix-glibc2.lisp
Closes #84
See merge request cmucl/cmucl!51
- - - - -
449f8ec1 by Raymond Toy at 2020-08-26T17:09:13-07:00
Fix #85: Let each x86 configs set optimization level
Add `COPT` variable in `Config.x86_common` to set the optimization
level (defaulting to `-O2`).  Then each `Config.x86` file can set
`COPT` as desired if the default doesn&#39;t work.
Thus, `Config.x86_linux` sets `COPT` to `-O1`, but others can use the
default value.  See issue #68.
- - - - -
d1c5289e by Raymond Toy at 2020-08-26T17:12:40-07:00
Fix typo
- - - - -
38372fd9 by Raymond Toy at 2020-08-26T17:14:30-07:00
Fix typo
- - - - -
29cac208 by Raymond Toy at 2020-08-27T00:36:27+00:00
Fix #85: Let each x86 configs set optimization level
Add `COPT` variable in `Config.x86_common` to set the optimization
level (defaulting to `-O2`).  Then each `Config.x86` file can set
`COPT` as desired if the default doesn&#39;t work.
Thus, `Config.x86_linux` sets `COPT` to `-O1`, but others can use the
default value.  See issue #68.
- - - - -
d0b192cd by Raymond Toy at 2020-08-27T00:36:28+00:00
Merge branch &#39;issue-85-opt-level-set-in-x86-config&#39; into &#39;master&#39;
Fix #85: Let each x86 configs set optimization level
Closes #85
See merge request cmucl/cmucl!52
- - - - -
d51dabf0 by Raymond Toy at 2020-08-26T23:21:23-07:00
Fix #86: Make cmucl work with gcc 8.1.1 and later
In alloc(), save the fpu state on entry to the function and restore it
just before returning.
While we&#39;re at it, use the __attribute__ option to get a 16-byte
aligned area where we can save the fpu state.
And also set optimization to -O2 for linux.
- - - - -
4b80a6e5 by Raymond Toy at 2020-08-26T23:26:12-07:00
Merge branch &#39;master&#39; into issue-86-save-fpu-state-on-entry-to-alloc
- - - - -
a95db7ba by Raymond Toy at 2020-08-26T23:30:54-07:00
Update comments
- - - - -
ad3862c9 by Raymond Toy at 2020-08-26T23:34:05-07:00
Clean up code
- - - - -
01f8217b by Raymond Toy at 2020-08-26T23:41:36-07:00
Add -R flag to recompile lisp
- - - - -
8b08b800 by Raymond Toy at 2020-08-27T20:39:07-07:00
Save FPU state in alloc_overflow_sse2
It&#39;s best to save the FPU state here instead of in alloc() because we
can&#39;t know what the compiler might do.  Remove the fpu save stuff from
alloc().
gcc 9.3.1 builds lisp successfully.
- - - - -
e3aa51f3 by Raymond Toy at 2020-08-27T20:58:52-07:00
Remove stray #pragma
Forgot to remove this; it&#39;s not needed anymore.
- - - - -
17144e16 by Raymond Toy at 2020-08-28T16:23:59-07:00
Save just the xmm registers
Instead of saving the entire FPU state, we really only need to save
the xmm registers.
- - - - -
f923302e by Raymond Toy at 2020-08-28T16:32:49-07:00
Remove old version of alloc_overflow_sse2
- - - - -
9b7c0185 by Raymond Toy at 2020-08-29T02:27:00+00:00
Merge branch &#39;issue-86-save-fpu-state-on-entry-to-alloc&#39; into &#39;master&#39;
Fix #86: save fpu state on entry to alloc
Closes #86 and #85
See merge request cmucl/cmucl!53
- - - - -
28a12603 by Raymond Toy at 2020-08-28T19:29:16-07:00
Merge branch &#39;master&#39; into rtoy-issue-76-add-ansi-tests-to-ci
- - - - -
12 changed files:
- .gitlab-ci.yml
- − src/code/unix-glibc2.lisp
- src/lisp/Config.x86_common
- src/lisp/Config.x86_darwin
- src/lisp/Config.x86_freebsd
- src/lisp/Config.x86_linux
- src/lisp/Config.x86_linux_clang
- src/lisp/Config.x86_netbsd
- src/lisp/Config.x86_solaris_sunc
- src/lisp/gencgc.c
- src/lisp/x86-arch.h
- src/lisp/x86-assem.S
Changes:
=====================================
.gitlab-ci.yml
=====================================
@@ -14,7 +14,7 @@ linux-runner:
     - mkdir snapshot
     - (cd snapshot; tar xjf ../cmucl-$version-linux.tar.bz2; tar xjf ../cmucl-$version-linux.extra.tar.bz2)
   script:
-    - bin/build.sh $bootstrap -C "" -o snapshot/bin/lisp
+    - bin/build.sh $bootstrap -R -C "" -o snapshot/bin/lisp
     - bin/make-dist.sh -I dist linux-4
     - bin/run-tests.sh -l dist/bin/lisp 2>&1 | tee test.log
     - cd ansi-test
@@ -31,7 +31,7 @@ osx-runner:
     - mkdir snapshot
     - (cd snapshot; tar xjf ../cmucl-$version-darwin.tar.bz2)
   script:
-    - bin/build.sh $bootstrap -C "" -o snapshot/bin/lisp
+    - bin/build.sh $bootstrap -R -C "" -o snapshot/bin/lisp
     - bin/make-dist.sh -I dist darwin-4
     - bin/run-tests.sh -l dist/bin/lisp 2>&1 | tee test.log
     - cd ansi-test
=====================================
src/code/unix-glibc2.lisp deleted
=====================================
@@ -1,1972 +0,0 @@
-;;; -*- Package: UNIX -*-
-;;;
-;;; **********************************************************************
-;;; This code was written as part of the CMU Common Lisp project at
-;;; Carnegie Mellon University, and has been placed in the public domain..
-;;;
-(ext:file-comment
-  "$Header: src/code/unix-glibc2.lisp $")
-;;;
-;;; **********************************************************************
-;;;
-;;; This file contains the UNIX low-level support for glibc2.  Based
-;;; on unix.lisp 1.56, converted for glibc2 by Peter Van Eynde (1998).
-;;; Alpha support by Julian Dolby, 1999.
-;;;
-;;; All the functions with #+(or) in front are work in progress,
-;;; and mostly don't work.
-;;;
-;; Todo: #+(or)'ed stuff and ioctl's
-;;
-;;
-;; Large File Support (LFS) added by Pierre Mai and Eric Marsden, Feb
-;; 2003. This is necessary to be able to read/write/stat files that
-;; are larger than 2GB on a 32-bit system. From a C program, defining
-;; a preprocessor macro _LARGEFILE64_SOURCE makes the preproccessor
-;; replace a call to open() by open64(), and similarly for stat,
-;; fstat, lstat, lseek, readdir and friends. Furthermore, certain data
-;; types, that are normally 32 bits wide, are replaced by 64-bit wide
-;; equivalents: off_t -> off64_t etc. The libc.so fiddles around with
-;; weak symbols to support this mess.
-;;
-;; From CMUCL, we make FFI calls to the xxx64 functions, and use the
-;; 64-bit wide versions of the data structures. The most ugly aspect
-;; is that some of the stat functions are not available via dlsym, so
-;; we reference them explicitly from linux-stubs.S. Another amusing
-;; fact is that on glibc 2.2, stat64() returns a struct stat with a
-;; 32-bit ino_t, whereas readdir64() returns a struct dirent that
-;; contains a 64-bit ino_t.  On glibc 2.1, OTOH, both stat64 and
-;; readdir64 use structs with 32-bit ino_t.
-;;
-;; The current version deals with this by going with the glibc 2.2
-;; definitions, unless the keyword :glibc2.1 also occurs on *features*,
-;; in addition to :glibc2, in which case we go with the glibc 2.1
-;; definitions.  Note that binaries compiled against glibc 2.1 do in
-;; fact work fine on glibc 2.2, because readdir64 is available in both
-;; glibc 2.1 and glibc 2.2 versions in glibc 2.2, disambiguated through
-;; ELF symbol versioning.  We use an entry for readdir64 in linux-stubs.S
-;; in order to force usage of the correct version of readdir64 at runtime.
-;;
-;; So in order to compile for glibc 2.2 and newer, just compile CMUCL
-;; on a glibc 2.2 system, and make sure that :glibc2.1 doesn't appear
-;; on the *features* list.  In order to compile for glibc 2.1 and newer,
-;; compile CMUCL on a glibc 2.1 system, and make sure that :glibc2.1 does
-;; appear on the *features* list.
-
-(in-package "UNIX")
-(use-package "ALIEN")
-(use-package "C-CALL")
-(use-package "SYSTEM")
-(use-package "EXT")
-(intl:textdomain "cmucl-unix-glibc2")
-
-;; Check the G_BROKEN_FILENAMES environment variable; if set the encoding
-;; is locale-dependent...else use :utf-8 on Unicode Lisps.  On 8 bit Lisps
-;; it must be set to :iso8859-1 (or left as NIL), making files with
-;; non-Latin-1 characters "mojibake", but otherwise they'll be inaccessible.
-;; Must be set to NIL initially to enable building Lisp!
-(defvar *filename-encoding* nil)
-
-(pushnew :unix *features*)
-(pushnew :glibc2 *features*)
-
-;; needed for bootstrap
-(eval-when (:compile-toplevel :load-toplevel :execute)
-  (defmacro %name->file (string)
-    `(if *filename-encoding*
-	 (string-encode ,string *filename-encoding*)
-	 ,string))
-  (defmacro %file->name (string)
-    `(if *filename-encoding*
-	 (string-decode ,string *filename-encoding*)
-	 ,string)))
-
-(defconstant +max-u-long+ 4294967295)
-
-(def-alien-type size-t #-alpha unsigned-int #+alpha long)
-(def-alien-type time-t long)
-
-(def-alien-type uquad-t #+alpha unsigned-long
-		#-alpha (array unsigned-long 2))
-(def-alien-type u-int32-t unsigned-int)
-(def-alien-type int64-t (signed 64))
-(def-alien-type u-int64-t (unsigned 64))
-
-(def-alien-type dev-t #-amd64 uquad-t #+amd64 u-int64-t)
-(def-alien-type uid-t unsigned-int)
-(def-alien-type gid-t unsigned-int)
-(def-alien-type ino-t #-amd64 u-int32-t #+amd64 u-int64-t)
-(def-alien-type ino64-t u-int64-t)
-(def-alien-type mode-t u-int32-t)
-(def-alien-type nlink-t #-amd64 unsigned-int #+amd64 u-int64-t)
-(def-alien-type off-t int64-t)
-(def-alien-type blkcnt-t u-int64-t)
-
-;;;; Common machine independent structures.
-
-
-;; Needed early in bootstrap.
-(defun unix-current-directory ()
-  _N"Put the absolute pathname of the current working directory in BUF.
-   If successful, return BUF.  If not, put an error message in
-   BUF and return NULL.  BUF should be at least PATH_MAX bytes long."
-  ;; 5120 is some randomly selected maximum size for the buffer for getcwd.
-  (with-alien ((buf (array c-call:char 5120)))
-    (let ((result (alien-funcall
-		    (extern-alien "getcwd"
-				  (function (* c-call:char)
-					    (* c-call:char) c-call:int))
-		    (cast buf (* c-call:char))
-		    5120)))
-      
-      (values (not (zerop (sap-int (alien-sap result))))
-	      (%file->name (cast buf c-call:c-string))))))
-
-;;; fcntlbits.h
-(defconstant o_read    o_rdonly _N"Open for reading")
-(defconstant o_write   o_wronly _N"Open for writing")
-
-(defconstant o_rdonly  0 _N"Read-only flag.") 
-(defconstant o_wronly  1 _N"Write-only flag.")
-(defconstant o_rdwr    2 _N"Read-write flag.")
-(defconstant o_accmode 3 _N"Access mode mask.")
-
-#-alpha
-(progn
-  (defconstant o_creat   #o100 _N"Create if nonexistant flag. (not fcntl)") 
-  (defconstant o_excl    #o200 _N"Error if already exists. (not fcntl)")
-  (defconstant o_noctty  #o400 _N"Don't assign controlling tty. (not fcntl)")
-  (defconstant o_trunc   #o1000 _N"Truncate flag. (not fcntl)")
-  (defconstant o_append  #o2000 _N"Append flag.")
-  (defconstant o_ndelay  #o4000 _N"Non-blocking I/O")
-  (defconstant o_nonblock #o4000 _N"Non-blocking I/O")
-  (defconstant o_ndelay  o_nonblock)
-  (defconstant o_sync    #o10000 _N"Synchronous writes (on ext2)")
-  (defconstant o_fsync    o_sync)
-  (defconstant o_async   #o20000 _N"Asynchronous I/O"))
-#+alpha
-(progn
-  (defconstant o_creat   #o1000 _N"Create if nonexistant flag. (not fcntl)") 
-  (defconstant o_trunc   #o2000 _N"Truncate flag. (not fcntl)")
-  (defconstant o_excl    #o4000 _N"Error if already exists. (not fcntl)")
-  (defconstant o_noctty  #o10000 _N"Don't assign controlling tty. (not fcntl)")
-  (defconstant o_nonblock #o4 _N"Non-blocking I/O")
-  (defconstant o_append  #o10 _N"Append flag.")
-  (defconstant o_ndelay  o_nonblock)
-  (defconstant o_sync    #o40000 _N"Synchronous writes (on ext2)")
-  (defconstant o_fsync    o_sync)
-  (defconstant o_async   #o20000 _N"Asynchronous I/O"))
-
-#-alpha
-(progn
-  (defconstant f-getlk    5   _N"Get lock")
-  (defconstant f-setlk    6   _N"Set lock")
-  (defconstant f-setlkw   7   _N"Set lock, wait for release")
-  (defconstant f-setown   8  _N"Set owner (for sockets)")
-  (defconstant f-getown   9  _N"Get owner (for sockets)"))
-#+alpha
-(progn
-  (defconstant f-getlk    7   _N"Get lock")
-  (defconstant f-setlk    8   _N"Set lock")
-  (defconstant f-setlkw   9   _N"Set lock, wait for release")
-  (defconstant f-setown   5  _N"Set owner (for sockets)")
-  (defconstant f-getown   6  _N"Get owner (for sockets)"))
-
-(defconstant F-CLOEXEC 1 _N"for f-getfl and f-setfl")
-(defun unix-open (path flags mode)
-  _N"Unix-open opens the file whose pathname is specified by PATH
-   for reading and/or writing as specified by the FLAGS argument.
-   Returns an integer file descriptor.
-   The flags argument can be:
-
-     o_rdonly        Read-only flag.
-     o_wronly        Write-only flag.
-     o_rdwr          Read-and-write flag.
-     o_append        Append flag.
-     o_creat         Create-if-nonexistant flag.
-     o_trunc         Truncate-to-size-0 flag.
-     o_excl          Error if the file already exists
-     o_noctty        Don't assign controlling tty
-     o_ndelay        Non-blocking I/O
-     o_sync          Synchronous I/O
-     o_async         Asynchronous I/O
-
-   If the o_creat flag is specified, then the file is created with
-   a permission of argument MODE if the file doesn't exist."
-  (declare (type unix-pathname path)
-	   (type fixnum flags)
-	   (type unix-file-mode mode))
-  (int-syscall ("open64" c-string int int) (%name->file path) flags mode))
-
-;;; asm/errno.h
-(eval-when (compile eval)
-
-(defparameter *compiler-unix-errors* nil)
-
-(defmacro def-unix-error (name number description)
-  `(progn
-     (eval-when (compile eval)
-       (push (cons ,number ,description) *compiler-unix-errors*))
-     (defconstant ,name ,number ,description)
-     (export ',name)))
-
-(defmacro emit-unix-errors ()
-  (let* ((max (apply #'max (mapcar #'car *compiler-unix-errors*)))
-	 (array (make-array (1+ max) :initial-element nil)))
-    (dolist (error *compiler-unix-errors*)
-      (setf (svref array (car error)) (cdr error)))
-    `(progn
-       (defvar *unix-errors* ',array)
-       (declaim (simple-vector *unix-errors*)))))
-
-)
-
-(def-unix-error ESUCCESS 0 _N"Successful")
-(def-unix-error EPERM 1 _N"Operation not permitted")
-(def-unix-error ENOENT 2 _N"No such file or directory")
-(def-unix-error ESRCH 3 _N"No such process")
-(def-unix-error EINTR 4 _N"Interrupted system call")
-(def-unix-error EIO 5 _N"I/O error")
-(def-unix-error ENXIO 6 _N"No such device or address")
-(def-unix-error E2BIG 7 _N"Arg list too long")
-(def-unix-error ENOEXEC 8 _N"Exec format error")
-(def-unix-error EBADF 9 _N"Bad file number")
-(def-unix-error ECHILD 10 _N"No children")
-(def-unix-error EAGAIN 11 _N"Try again")
-(def-unix-error ENOMEM 12 _N"Out of memory")
-(def-unix-error EACCES 13 _N"Permission denied")
-(def-unix-error EFAULT 14 _N"Bad address")
-(def-unix-error ENOTBLK 15 _N"Block device required")
-(def-unix-error EBUSY 16 _N"Device or resource busy")
-(def-unix-error EEXIST 17 _N"File exists")
-(def-unix-error EXDEV 18 _N"Cross-device link")
-(def-unix-error ENODEV 19 _N"No such device")
-(def-unix-error ENOTDIR 20 _N"Not a director")
-(def-unix-error EISDIR 21 _N"Is a directory")
-(def-unix-error EINVAL 22 _N"Invalid argument")
-(def-unix-error ENFILE 23 _N"File table overflow")
-(def-unix-error EMFILE 24 _N"Too many open files")
-(def-unix-error ENOTTY 25 _N"Not a typewriter")
-(def-unix-error ETXTBSY 26 _N"Text file busy")
-(def-unix-error EFBIG 27 _N"File too large")
-(def-unix-error ENOSPC 28 _N"No space left on device")
-(def-unix-error ESPIPE 29 _N"Illegal seek")
-(def-unix-error EROFS 30 _N"Read-only file system")
-(def-unix-error EMLINK 31 _N"Too many links")
-(def-unix-error EPIPE 32 _N"Broken pipe")
-;;; 
-;;; Math
-(def-unix-error EDOM 33 _N"Math argument out of domain")
-(def-unix-error ERANGE 34 _N"Math result not representable")
-;;; 
-(def-unix-error  EDEADLK         35     _N"Resource deadlock would occur")
-(def-unix-error  ENAMETOOLONG    36     _N"File name too long")
-(def-unix-error  ENOLCK          37     _N"No record locks available")
-(def-unix-error  ENOSYS          38     _N"Function not implemented")
-(def-unix-error  ENOTEMPTY       39     _N"Directory not empty")
-(def-unix-error  ELOOP           40     _N"Too many symbolic links encountered")
-(def-unix-error  EWOULDBLOCK     11     _N"Operation would block")
-(def-unix-error  ENOMSG          42     _N"No message of desired type")
-(def-unix-error  EIDRM           43     _N"Identifier removed")
-(def-unix-error  ECHRNG          44     _N"Channel number out of range")
-(def-unix-error  EL2NSYNC        45     _N"Level 2 not synchronized")
-(def-unix-error  EL3HLT          46     _N"Level 3 halted")
-(def-unix-error  EL3RST          47     _N"Level 3 reset")
-(def-unix-error  ELNRNG          48     _N"Link number out of range")
-(def-unix-error  EUNATCH         49     _N"Protocol driver not attached")
-(def-unix-error  ENOCSI          50     _N"No CSI structure available")
-(def-unix-error  EL2HLT          51     _N"Level 2 halted")
-(def-unix-error  EBADE           52     _N"Invalid exchange")
-(def-unix-error  EBADR           53     _N"Invalid request descriptor")
-(def-unix-error  EXFULL          54     _N"Exchange full")
-(def-unix-error  ENOANO          55     _N"No anode")
-(def-unix-error  EBADRQC         56     _N"Invalid request code")
-(def-unix-error  EBADSLT         57     _N"Invalid slot")
-(def-unix-error  EDEADLOCK       EDEADLK     _N"File locking deadlock error")
-(def-unix-error  EBFONT          59     _N"Bad font file format")
-(def-unix-error  ENOSTR          60     _N"Device not a stream")
-(def-unix-error  ENODATA         61     _N"No data available")
-(def-unix-error  ETIME           62     _N"Timer expired")
-(def-unix-error  ENOSR           63     _N"Out of streams resources")
-(def-unix-error  ENONET          64     _N"Machine is not on the network")
-(def-unix-error  ENOPKG          65     _N"Package not installed")
-(def-unix-error  EREMOTE         66     _N"Object is remote")
-(def-unix-error  ENOLINK         67     _N"Link has been severed")
-(def-unix-error  EADV            68     _N"Advertise error")
-(def-unix-error  ESRMNT          69     _N"Srmount error")
-(def-unix-error  ECOMM           70     _N"Communication error on send")
-(def-unix-error  EPROTO          71     _N"Protocol error")
-(def-unix-error  EMULTIHOP       72     _N"Multihop attempted")
-(def-unix-error  EDOTDOT         73     _N"RFS specific error")
-(def-unix-error  EBADMSG         74     _N"Not a data message")
-(def-unix-error  EOVERFLOW       75     _N"Value too large for defined data type")
-(def-unix-error  ENOTUNIQ        76     _N"Name not unique on network")
-(def-unix-error  EBADFD          77     _N"File descriptor in bad state")
-(def-unix-error  EREMCHG         78     _N"Remote address changed")
-(def-unix-error  ELIBACC         79     _N"Can not access a needed shared library")
-(def-unix-error  ELIBBAD         80     _N"Accessing a corrupted shared library")
-(def-unix-error  ELIBSCN         81     _N".lib section in a.out corrupted")
-(def-unix-error  ELIBMAX         82     _N"Attempting to link in too many shared libraries")
-(def-unix-error  ELIBEXEC        83     _N"Cannot exec a shared library directly")
-(def-unix-error  EILSEQ          84     _N"Illegal byte sequence")
-(def-unix-error  ERESTART        85     _N"Interrupted system call should be restarted _N")
-(def-unix-error  ESTRPIPE        86     _N"Streams pipe error")
-(def-unix-error  EUSERS          87     _N"Too many users")
-(def-unix-error  ENOTSOCK        88     _N"Socket operation on non-socket")
-(def-unix-error  EDESTADDRREQ    89     _N"Destination address required")
-(def-unix-error  EMSGSIZE        90     _N"Message too long")
-(def-unix-error  EPROTOTYPE      91     _N"Protocol wrong type for socket")
-(def-unix-error  ENOPROTOOPT     92     _N"Protocol not available")
-(def-unix-error  EPROTONOSUPPORT 93     _N"Protocol not supported")
-(def-unix-error  ESOCKTNOSUPPORT 94     _N"Socket type not supported")
-(def-unix-error  EOPNOTSUPP      95     _N"Operation not supported on transport endpoint")
-(def-unix-error  EPFNOSUPPORT    96     _N"Protocol family not supported")
-(def-unix-error  EAFNOSUPPORT    97     _N"Address family not supported by protocol")
-(def-unix-error  EADDRINUSE      98     _N"Address already in use")
-(def-unix-error  EADDRNOTAVAIL   99     _N"Cannot assign requested address")
-(def-unix-error  ENETDOWN        100    _N"Network is down")
-(def-unix-error  ENETUNREACH     101    _N"Network is unreachable")
-(def-unix-error  ENETRESET       102    _N"Network dropped connection because of reset")
-(def-unix-error  ECONNABORTED    103    _N"Software caused connection abort")
-(def-unix-error  ECONNRESET      104    _N"Connection reset by peer")
-(def-unix-error  ENOBUFS         105    _N"No buffer space available")
-(def-unix-error  EISCONN         106    _N"Transport endpoint is already connected")
-(def-unix-error  ENOTCONN        107    _N"Transport endpoint is not connected")
-(def-unix-error  ESHUTDOWN       108    _N"Cannot send after transport endpoint shutdown")
-(def-unix-error  ETOOMANYREFS    109    _N"Too many references: cannot splice")
-(def-unix-error  ETIMEDOUT       110    _N"Connection timed out")
-(def-unix-error  ECONNREFUSED    111    _N"Connection refused")
-(def-unix-error  EHOSTDOWN       112    _N"Host is down")
-(def-unix-error  EHOSTUNREACH    113    _N"No route to host")
-(def-unix-error  EALREADY        114    _N"Operation already in progress")
-(def-unix-error  EINPROGRESS     115    _N"Operation now in progress")
-(def-unix-error  ESTALE          116    _N"Stale NFS file handle")
-(def-unix-error  EUCLEAN         117    _N"Structure needs cleaning")
-(def-unix-error  ENOTNAM         118    _N"Not a XENIX named type file")
-(def-unix-error  ENAVAIL         119    _N"No XENIX semaphores available")
-(def-unix-error  EISNAM          120    _N"Is a named type file")
-(def-unix-error  EREMOTEIO       121    _N"Remote I/O error")
-(def-unix-error  EDQUOT          122    _N"Quota exceeded")
-
-;;; And now for something completely different ...
-(emit-unix-errors)
-
-(def-alien-type nil
-    (struct passwd
-	    (pw-name (* char))          ; user's login name
-	    (pw-passwd (* char))        ; no longer used
-	    (pw-uid uid-t)              ; user id
-	    (pw-gid gid-t)              ; group id
-	    (pw-gecos (* char))         ; typically user's full name
-	    (pw-dir (* char))           ; user's home directory
-	    (pw-shell (* char))))       ; user's login shell
-
-;;;; System calls.
-
-(def-alien-routine ("os_get_errno" unix-get-errno) int)
-(def-alien-routine ("os_set_errno" unix-set-errno) int (newvalue int))
-(defun unix-errno () (unix-get-errno))
-(defun (setf unix-errno) (newvalue) (unix-set-errno newvalue))
-
-;;; GET-UNIX-ERROR-MSG -- public.
-;;; 
-(defun get-unix-error-msg (&optional (error-number (unix-errno)))
-  _N"Returns a string describing the error number which was returned by a
-  UNIX system call."
-  (declare (type integer error-number))
-  
-  (if (array-in-bounds-p *unix-errors* error-number)
-      (svref *unix-errors* error-number)
-      (format nil (intl:gettext "Unknown error [~d]") error-number)))
-
-(defmacro syscall ((name &rest arg-types) success-form &rest args)
-  `(let ((result (alien-funcall (extern-alien ,name (function int ,@arg-types))
-				,@args)))
-     (if (minusp result)
-	 (values nil (unix-errno))
-	 ,success-form)))
-
-;;; Like syscall, but if it fails, signal an error instead of returning error
-;;; codes.  Should only be used for syscalls that will never really get an
-;;; error.
-;;;
-(defmacro syscall* ((name &rest arg-types) success-form &rest args)
-  `(let ((result (alien-funcall (extern-alien ,name (function int ,@arg-types))
-				,@args)))
-     (if (minusp result)
-	 (error (intl:gettext "Syscall ~A failed: ~A") ,name (get-unix-error-msg))
-	 ,success-form)))
-
-(defmacro void-syscall ((name &rest arg-types) &rest args)
-  `(syscall (,name ,@arg-types) (values t 0) ,@args))
-
-(defmacro int-syscall ((name &rest arg-types) &rest args)
-  `(syscall (,name ,@arg-types) (values result 0) ,@args))
-
-;;; Unix-write accepts a file descriptor, a buffer, an offset, and the
-;;; length to write.  It attempts to write len bytes to the device
-;;; associated with fd from the the buffer starting at offset.  It returns
-;;; the actual number of bytes written.
-
-(defun unix-write (fd buf offset len)
-  _N"Unix-write attempts to write a character buffer (buf) of length
-   len to the file described by the file descriptor fd.  NIL and an
-   error is returned if the call is unsuccessful."
-  (declare (type unix-fd fd)
-	   (type (unsigned-byte 32) offset len))
-  (int-syscall ("write" int (* char) int)
-	       fd
-	       (with-alien ((ptr (* char) (etypecase buf
-					    ((simple-array * (*))
-					     (vector-sap buf))
-					    (system-area-pointer
-					     buf))))
-		 (addr (deref ptr offset)))
-	       len))
-
-(defun unix-pipe ()
-  _N"Unix-pipe sets up a unix-piping mechanism consisting of
-  an input pipe and an output pipe.  Unix-Pipe returns two
-  values: if no error occurred the first value is the pipe
-  to be read from and the second is can be written to.  If
-  an error occurred the first value is NIL and the second
-  the unix error code."
-  (with-alien ((fds (array int 2)))
-    (syscall ("pipe" (* int))
-	     (values (deref fds 0) (deref fds 1))
-	     (cast fds (* int)))))
-
-;;; UNIX-READ accepts a file descriptor, a buffer, and the length to read.
-;;; It attempts to read len bytes from the device associated with fd
-;;; and store them into the buffer.  It returns the actual number of
-;;; bytes read.
-
-(defun unix-read (fd buf len)
-  _N"UNIX-READ attempts to read from the file described by fd into
-   the buffer buf until it is full.  Len is the length of the buffer.
-   The number of bytes actually read is returned or NIL and an error
-   number if an error occured."
-  (declare (type unix-fd fd)
-	   (type (unsigned-byte 32) len))
-  #+gencgc
-  ;; With gencgc, the collector tries to keep raw objects like strings
-  ;; in separate pages that are not write-protected.  However, this
-  ;; isn't always true.  Thus, BUF will sometimes be write-protected
-  ;; and the kernel doesn't like writing to write-protected pages.  So
-  ;; go through and touch each page to give the segv handler a chance
-  ;; to unprotect the pages.  (This is taken from unix.lisp.)
-  (without-gcing
-   (let* ((page-size (get-page-size))
-	  (1-page-size (1- page-size))
-	  (sap (etypecase buf
-		 (system-area-pointer buf)
-		 (vector (vector-sap buf))))
-	  (end (sap+ sap len)))
-     (declare (type (and fixnum unsigned-byte) page-size 1-page-size)
-	      (type system-area-pointer sap end)
-	      (optimize (speed 3) (safety 0)))
-     ;; Touch the beginning of every page
-     (do ((sap (int-sap (logand (sap-int sap)
-				(logxor 1-page-size (ldb (byte 32 0) -1))))
-	       (sap+ sap page-size)))
-	 ((sap>= sap end))
-       (declare (type system-area-pointer sap))
-       (setf (sap-ref-8 sap 0) (sap-ref-8 sap 0)))))
-  (int-syscall ("read" int (* char) int) fd buf len))
-
-;;; Unix-getpagesize returns the number of bytes in the system page.
-
-(defun unix-getpagesize ()
-  _N"Unix-getpagesize returns the number of bytes in a system page."
-  (int-syscall ("getpagesize")))
-
-;;; sys/stat.h
-
-(defmacro extract-stat-results (buf)
-  `(values T
-           #+(or alpha amd64)
-	   (slot ,buf 'st-dev)
-           #-(or alpha amd64)
-           (+ (deref (slot ,buf 'st-dev) 0)
-	      (* (+ +max-u-long+  1)
-	         (deref (slot ,buf 'st-dev) 1)))   ;;; let's hope this works..
-	   (slot ,buf 'st-ino)
-	   (slot ,buf 'st-mode)
-	   (slot ,buf 'st-nlink)
-	   (slot ,buf 'st-uid)
-	   (slot ,buf 'st-gid)
-           #+(or alpha amd64)
-	   (slot ,buf 'st-rdev)
-           #-(or alpha amd64)
-           (+ (deref (slot ,buf 'st-rdev) 0)
-	      (* (+ +max-u-long+  1)
-	         (deref (slot ,buf 'st-rdev) 1)))   ;;; let's hope this works..
-	   (slot ,buf 'st-size)
-	   (slot ,buf 'st-atime)
-	   (slot ,buf 'st-mtime)
-	   (slot ,buf 'st-ctime)
-	   (slot ,buf 'st-blksize)
-	   (slot ,buf 'st-blocks)))
-
-;;; bits/stat.h
-
-(def-alien-type nil
-  (struct stat
-    (st-dev dev-t)
-    #-(or alpha amd64) (st-pad1 unsigned-short)
-    (st-ino ino-t)
-    #+alpha (st-pad1 unsigned-int)
-    #-amd64 (st-mode mode-t)
-    (st-nlink  nlink-t)
-    #+amd64 (st-mode mode-t)
-    (st-uid  uid-t)
-    (st-gid  gid-t)
-    (st-rdev dev-t)
-    #-alpha (st-pad2  unsigned-short)
-    (st-size off-t)
-    #-alpha (st-blksize unsigned-long)
-    #-alpha (st-blocks blkcnt-t)
-    (st-atime time-t)
-    #-alpha (unused-1 unsigned-long)
-    (st-mtime time-t)
-    #-alpha (unused-2 unsigned-long)
-    (st-ctime time-t)
-    #+alpha (st-blocks int)
-    #+alpha (st-pad2 unsigned-int)
-    #+alpha (st-blksize unsigned-int)
-    #+alpha (st-flags unsigned-int)
-    #+alpha (st-gen unsigned-int)
-    #+alpha (st-pad3 unsigned-int)
-    #+alpha (unused-1 unsigned-long)
-    #+alpha (unused-2 unsigned-long)
-    (unused-3 unsigned-long)
-    (unused-4 unsigned-long)
-    #-alpha (unused-5 unsigned-long)))
-
-(defun unix-stat (name)
-  _N"UNIX-STAT retrieves information about the specified
-   file returning them in the form of multiple values.
-   See the UNIX Programmer's Manual for a description
-   of the values returned.  If the call fails, then NIL
-   and an error number is returned instead."
-  (declare (type unix-pathname name))
-  (when (string= name "")
-    (setf name "."))
-  (with-alien ((buf (struct stat)))
-    (syscall ("stat64" c-string (* (struct stat)))
-	     (extract-stat-results buf)
-	     (%name->file name) (addr buf))))
-
-(defun unix-fstat (fd)
-  _N"UNIX-FSTAT is similar to UNIX-STAT except the file is specified
-   by the file descriptor FD."
-  (declare (type unix-fd fd))
-  (with-alien ((buf (struct stat)))
-    (syscall ("fstat64" int (* (struct stat)))
-	     (extract-stat-results buf)
-	     fd (addr buf))))
-
-(defun unix-lstat (name)
-  _N"UNIX-LSTAT is similar to UNIX-STAT except the specified
-   file must be a symbolic link."
-  (declare (type unix-pathname name))
-  (with-alien ((buf (struct stat)))
-    (syscall ("lstat64" c-string (* (struct stat)))
-	     (extract-stat-results buf)
-	     (%name->file name) (addr buf))))
-
-;; Encoding of the file mode.
-
-(defconstant s-ifmt   #o0170000 _N"These bits determine file type.")
-
-;; File types.
-
-(defconstant s-ififo  #o0010000 _N"FIFO")
-(defconstant s-ifchr  #o0020000 _N"Character device")
-(defconstant s-ifdir  #o0040000 _N"Directory")
-(defconstant s-ifblk  #o0060000 _N"Block device")
-(defconstant s-ifreg  #o0100000 _N"Regular file")
-
-;; These don't actually exist on System V, but having them doesn't hurt.
-
-(defconstant s-iflnk  #o0120000 _N"Symbolic link.")
-(defconstant s-ifsock #o0140000 _N"Socket.")
-(defun unix-file-kind (name &optional check-for-links)
-  _N"Returns either :file, :directory, :link, :special, or NIL."
-  (declare (simple-string name))
-  (multiple-value-bind (res dev ino mode)
-		       (if check-for-links
-			   (unix-lstat name)
-			   (unix-stat name))
-    (declare (type (or fixnum null) mode)
-	     (ignore dev ino))
-    (when res
-      (let ((kind (logand mode s-ifmt)))
-	(cond ((eql kind s-ifdir) :directory)
-	      ((eql kind s-ifreg) :file)
-	      ((eql kind s-iflnk) :link)
-	      (t :special))))))
-
-(defun unix-maybe-prepend-current-directory (name)
-  (declare (simple-string name))
-  (if (and (> (length name) 0) (char= (schar name 0) #/))
-      name
-      (multiple-value-bind (win dir) (unix-current-directory)
-	(if win
-	    (concatenate 'simple-string dir "/" name)
-	    name))))
-
-;; Values for the second argument to access.
-
-;;; Unix-access accepts a path and a mode.  It returns two values the
-;;; first is T if the file is accessible and NIL otherwise.  The second
-;;; only has meaning in the second case and is the unix errno value.
-
-(defun unix-access (path mode)
-  _N"Given a file path (a string) and one of four constant modes,
-   unix-access returns T if the file is accessible with that
-   mode and NIL if not.  It also returns an errno value with
-   NIL which determines why the file was not accessible.
-
-   The access modes are:
-	r_ok     Read permission.
-	w_ok     Write permission.
-	x_ok     Execute permission.
-	f_ok     Presence of file."
-  (declare (type unix-pathname path)
-	   (type (mod 8) mode))
-  (void-syscall ("access" c-string int) (%name->file path) mode))
-
-(defconstant l_set 0 _N"set the file pointer")
-(defconstant l_incr 1 _N"increment the file pointer")
-(defconstant l_xtnd 2 _N"extend the file size")
-
-(defun unix-lseek (fd offset whence)
-  _N"UNIX-LSEEK accepts a file descriptor and moves the file pointer ahead
-   a certain OFFSET for that file.  WHENCE can be any of the following:
-
-   l_set        Set the file pointer.
-   l_incr       Increment the file pointer.
-   l_xtnd       Extend the file size.
-  "
-  (declare (type unix-fd fd)
-	   (type (signed-byte 64) offset)
-	   (type (integer 0 2) whence))
-  (let ((result (alien-funcall
-                 (extern-alien "lseek64" (function off-t int off-t int))
-                 fd offset whence)))
-    (if (minusp result)
-        (values nil (unix-errno))
-        (values result 0))))
-;;; Unix-close accepts a file descriptor and attempts to close the file
-;;; associated with it.
-
-(defun unix-close (fd)
-  _N"Unix-close takes an integer file descriptor as an argument and
-   closes the file associated with it.  T is returned upon successful
-   completion, otherwise NIL and an error number."
-  (declare (type unix-fd fd))
-  (void-syscall ("close" int) fd))
-
-;;; Unix-creat accepts a file name and a mode.  It creates a new file
-;;; with name and sets it mode to mode (as for chmod).
-
-(defun unix-creat (name mode)
-  _N"Unix-creat accepts a file name and a mode (same as those for
-   unix-chmod) and creates a file by that name with the specified
-   permission mode.  It returns a file descriptor on success,
-   or NIL and an error  number otherwise.
-
-   This interface is made obsolete by UNIX-OPEN."
-  
-  (declare (type unix-pathname name)
-	   (type unix-file-mode mode))
-  (int-syscall ("creat64" c-string int) (%name->file name) mode))
-
-(defun unix-resolve-links (pathname)
-  _N"Returns the pathname with all symbolic links resolved."
-  (declare (simple-string pathname))
-  (let ((len (length pathname))
-	(pending pathname))
-    (declare (fixnum len) (simple-string pending))
-    (if (zerop len)
-	pathname
-	(let ((result (make-string 100 :initial-element (code-char 0)))
-	      (fill-ptr 0)
-	      (name-start 0))
-	  (loop
-	    (let* ((name-end (or (position #/ pending :start name-start) len))
-		   (new-fill-ptr (+ fill-ptr (- name-end name-start))))
-	      ;; grow the result string, if necessary.  the ">=" (instead of
-	      ;; using ">") allows for the trailing "/" if we find this
-	      ;; component is a directory.
-	      (when (>= new-fill-ptr (length result))
-		(let ((longer (make-string (* 3 (length result))
-					   :initial-element (code-char 0))))
-		  (replace longer result :end1 fill-ptr)
-		  (setq result longer)))
-	      (replace result pending
-		       :start1 fill-ptr
-		       :end1 new-fill-ptr
-		       :start2 name-start
-		       :end2 name-end)
-	      (let ((kind (unix-file-kind (if (zerop name-end) "/" result) t)))
-		(unless kind (return nil))
-		(cond ((eq kind :link)
-		       (multiple-value-bind (link err) (unix-readlink result)
-			 (unless link
-			   (error (intl:gettext "Error reading link ~S: ~S")
-				  (subseq result 0 fill-ptr)
-				  (get-unix-error-msg err)))
-			 (cond ((or (zerop (length link))
-				    (char/= (schar link 0) #/))
-				;; It's a relative link
-				(fill result (code-char 0)
-				      :start fill-ptr
-				      :end new-fill-ptr))
-			       ((string= result "/../" :end1 4)
-				;; It's across the super-root.
-				(let ((slash (or (position #/ result :start 4)
-						 0)))
-				  (fill result (code-char 0)
-					:start slash
-					:end new-fill-ptr)
-				  (setf fill-ptr slash)))
-			       (t
-				;; It's absolute.
-				(and (> (length link) 0)
-				     (char= (schar link 0) #/))
-				(fill result (code-char 0) :end new-fill-ptr)
-				(setf fill-ptr 0)))
-			 (setf pending
-			       (if (= name-end len)
-				   link
-				   (concatenate 'simple-string
-						link
-						(subseq pending name-end))))
-			 (setf len (length pending))
-			 (setf name-start 0)))
-		      ((= name-end len)
-		       (when (eq kind :directory)
-			 (setf (schar result new-fill-ptr) #/)
-			 (incf new-fill-ptr))
-		       (return (subseq result 0 new-fill-ptr)))
-		      ((eq kind :directory)
-		       (setf (schar result new-fill-ptr) #/)
-		       (setf fill-ptr (1+ new-fill-ptr))
-		       (setf name-start (1+ name-end)))
-		      (t
-		       (return nil))))))))))
-
-(defun unix-simplify-pathname (src)
-  (declare (simple-string src))
-  (let* ((src-len (length src))
-	 (dst (make-string src-len))
-	 (dst-len 0)
-	 (dots 0)
-	 (last-slash nil))
-    (macrolet ((deposit (char)
-			`(progn
-			   (setf (schar dst dst-len) ,char)
-			   (incf dst-len))))
-      (dotimes (src-index src-len)
-	(let ((char (schar src src-index)))
-	  (cond ((char= char #.)
-		 (when dots
-		   (incf dots))
-		 (deposit char))
-		((char= char #/)
-		 (case dots
-		   (0
-		    ;; Either ``/...' or ``...//...'
-		    (unless last-slash
-		      (setf last-slash dst-len)
-		      (deposit char)))
-		   (1
-		    ;; Either ``./...'' or ``..././...''
-		    (decf dst-len))
-		   (2
-		    ;; We've found ..
-		    (cond
-		     ((and last-slash (not (zerop last-slash)))
-		      ;; There is something before this ..
-		      (let ((prev-prev-slash
-			     (position #/ dst :end last-slash :from-end t)))
-			(cond ((and (= (+ (or prev-prev-slash 0) 2)
-				       last-slash)
-				    (char= (schar dst (- last-slash 2)) #.)
-				    (char= (schar dst (1- last-slash)) #.))
-			       ;; The something before this .. is another ..
-			       (deposit char)
-			       (setf last-slash dst-len))
-			      (t
-			       ;; The something is some random dir.
-			       (setf dst-len
-				     (if prev-prev-slash
-					 (1+ prev-prev-slash)
-					 0))
-			       (setf last-slash prev-prev-slash)))))
-		     (t
-		      ;; There is nothing before this .., so we need to keep it
-		      (setf last-slash dst-len)
-		      (deposit char))))
-		   (t
-		    ;; Something other than a dot between slashes.
-		    (setf last-slash dst-len)
-		    (deposit char)))
-		 (setf dots 0))
-		(t
-		 (setf dots nil)
-		 (setf (schar dst dst-len) char)
-		 (incf dst-len))))))
-    (when (and last-slash (not (zerop last-slash)))
-      (case dots
-	(1
-	 ;; We've got  ``foobar/.''
-	 (decf dst-len))
-	(2
-	 ;; We've got ``foobar/..''
-	 (unless (and (>= last-slash 2)
-		      (char= (schar dst (1- last-slash)) #.)
-		      (char= (schar dst (- last-slash 2)) #.)
-		      (or (= last-slash 2)
-			  (char= (schar dst (- last-slash 3)) #/)))
-	   (let ((prev-prev-slash
-		  (position #/ dst :end last-slash :from-end t)))
-	     (if prev-prev-slash
-		 (setf dst-len (1+ prev-prev-slash))
-		 (return-from unix-simplify-pathname "./")))))))
-    (cond ((zerop dst-len)
-	   "./")
-	  ((= dst-len src-len)
-	   dst)
-	  (t
-	   (subseq dst 0 dst-len)))))
-
-(defun unix-gethostname ()
-  _N"Unix-gethostname returns the name of the host machine as a string."
-  (with-alien ((buf (array char 256)))
-    (syscall* ("gethostname" (* char) int)
-	      (cast buf c-string)
-	      (cast buf (* char)) 256)))
-
-;;; Unix-dup returns a duplicate copy of the existing file-descriptor
-;;; passed as an argument.
-
-(defun unix-dup (fd)
-  _N"Unix-dup duplicates an existing file descriptor (given as the
-   argument) and return it.  If FD is not a valid file descriptor, NIL
-   and an error number are returned."
-  (declare (type unix-fd fd))
-  (int-syscall ("dup" int) fd))
-
-;;; Unix-dup2 makes the second file-descriptor describe the same file
-;;; as the first. If the second file-descriptor points to an open
-;;; file, it is first closed. In any case, the second should have a 
-;;; value which is a valid file-descriptor.
-
-(defun unix-dup2 (fd1 fd2)
-  _N"Unix-dup2 duplicates an existing file descriptor just as unix-dup
-   does only the new value of the duplicate descriptor may be requested
-   through the second argument.  If a file already exists with the
-   requested descriptor number, it will be closed and the number
-   assigned to the duplicate."
-  (declare (type unix-fd fd1 fd2))
-  (void-syscall ("dup2" int int) fd1 fd2))
-
-;;; Unix-exit terminates a program.
-
-(defun unix-exit (&optional (code 0))
-  _N"Unix-exit terminates the current process with an optional
-   error code.  If successful, the call doesn't return.  If
-   unsuccessful, the call returns NIL and an error number."
-  (declare (type (signed-byte 32) code))
-  (void-syscall ("exit" int) code))
-
-(def-alien-routine ("getuid" unix-getuid) int
-  _N"Unix-getuid returns the real user-id associated with the
-   current process.")
-
-;;; Unix-chdir accepts a directory name and makes that the
-;;; current working directory.
-
-(defun unix-chdir (path)
-  _N"Given a file path string, unix-chdir changes the current working 
-   directory to the one specified."
-  (declare (type unix-pathname path))
-  (void-syscall ("chdir" c-string) (%name->file path)))
-
-;;; Unix-chmod accepts a path and a mode and changes the mode to the new mode.
-
-(defun unix-chmod (path mode)
-  _N"Given a file path string and a constant mode, unix-chmod changes the
-   permission mode for that file to the one specified. The new mode
-   can be created by logically OR'ing the following:
-
-      setuidexec        Set user ID on execution.
-      setgidexec        Set group ID on execution.
-      savetext          Save text image after execution.
-      readown           Read by owner.
-      writeown          Write by owner.
-      execown           Execute (search directory) by owner.
-      readgrp           Read by group.
-      writegrp          Write by group.
-      execgrp           Execute (search directory) by group.
-      readoth           Read by others.
-      writeoth          Write by others.
-      execoth           Execute (search directory) by others.
-
-  Thus #o444 and (logior unix:readown unix:readgrp unix:readoth)
-  are equivalent for 'mode.  The octal-base is familar to Unix users.
-  
-  It returns T on successfully completion; NIL and an error number
-  otherwise."
-  (declare (type unix-pathname path)
-	   (type unix-file-mode mode))
-  (void-syscall ("chmod" c-string int) (%name->file path) mode))
-
-;;; Unix-fchmod accepts a file descriptor ("fd") and a file protection mode
-;;; ("mode") and changes the protection of the file described by "fd" to 
-;;; "mode".
-
-(defun unix-fchmod (fd mode)
-  _N"Given an integer file descriptor and a mode (the same as those
-   used for unix-chmod), unix-fchmod changes the permission mode
-   for that file to the one specified. T is returned if the call
-   was successful."
-  (declare (type unix-fd fd)
-	   (type unix-file-mode mode))
-  (void-syscall ("fchmod" int int) fd mode))
-
-(defun unix-readlink (path)
-  _N"Unix-readlink invokes the readlink system call on the file name
-  specified by the simple string path.  It returns up to two values:
-  the contents of the symbolic link if the call is successful, or
-  NIL and the Unix error number."
-  (declare (type unix-pathname path))
-  (with-alien ((buf (array char 1024)))
-    (syscall ("readlink" c-string (* char) int)
-	     (let ((string (make-string result)))
-	       #-unicode
-	       (kernel:copy-from-system-area
-		(alien-sap buf) 0
-		string (* vm:vector-data-offset vm:word-bits)
-		(* result vm:byte-bits))
-	       #+unicode
-	       (let ((sap (alien-sap buf)))
-		 (dotimes (k result)
-		   (setf (aref string k) (code-char (sap-ref-8 sap k)))))
-	       (%file->name string))
-	     (%name->file path) (cast buf (* char)) 1024)))
-
-;;; Unix-unlink accepts a name and deletes the directory entry for that
-;;; name and the file if this is the last link.
-
-(defun unix-unlink (name)
-  _N"Unix-unlink removes the directory entry for the named file.
-   NIL and an error code is returned if the call fails."
-  (declare (type unix-pathname name))
-  (void-syscall ("unlink" c-string) (%name->file name)))
-
-;;; fcntl.h
-;;;
-;;; POSIX Standard: 6.5 File Control Operations	<fcntl.h>
-
-(defconstant r_ok 4 _N"Test for read permission")
-(defconstant w_ok 2 _N"Test for write permission")
-(defconstant x_ok 1 _N"Test for execute permission")
-(defconstant f_ok 0 _N"Test for presence of file")
-
-(defun unix-fcntl (fd cmd arg)
-  _N"Unix-fcntl manipulates file descriptors accoridng to the
-   argument CMD which can be one of the following:
-
-   F-DUPFD         Duplicate a file descriptor.
-   F-GETFD         Get file descriptor flags.
-   F-SETFD         Set file descriptor flags.
-   F-GETFL         Get file flags.
-   F-SETFL         Set file flags.
-   F-GETOWN        Get owner.
-   F-SETOWN        Set owner.
-
-   The flags that can be specified for F-SETFL are:
-
-   FNDELAY         Non-blocking reads.
-   FAPPEND         Append on each write.
-   FASYNC          Signal pgrp when data ready.
-   FCREAT          Create if nonexistant.
-   FTRUNC          Truncate to zero length.
-   FEXCL           Error if already created.
-   "
-  (declare (type unix-fd fd)
-	   (type (unsigned-byte 32) cmd)
-	   (type (unsigned-byte 32) arg))
-  (int-syscall ("fcntl" int unsigned-int unsigned-int) fd cmd arg))
-
-;;;; Memory-mapped files
-
-(defconstant +null+ (sys:int-sap 0))
-
-(defconstant prot_read 1)
-(defconstant prot_write 2)
-(defconstant prot_exec 4)
-(defconstant prot_none 0)
-
-(defconstant map_shared 1)
-(defconstant map_private 2)
-(defconstant map_fixed 16)
-(defconstant map_anonymous 32)
-
-(defconstant ms_async 1)
-(defconstant ms_sync 4)
-(defconstant ms_invalidate 2)
-
-;; The return value from mmap that means mmap failed.
-(defconstant map_failed (int-sap (1- (ash 1 vm:word-bits))))
-
-(defun unix-mmap (addr length prot flags fd offset)
-  (declare (type (or null system-area-pointer) addr)
-	   (type (unsigned-byte 32) length)
-           (type (integer 1 7) prot)
-	   (type (unsigned-byte 32) flags)
-	   (type (or null unix-fd) fd)
-	   (type (signed-byte 32) offset))
-  ;; Can't use syscall, because the address that is returned could be
-  ;; "negative".  Hence we explicitly check for mmap returning
-  ;; MAP_FAILED.
-  (let ((result
-	 (alien-funcall (extern-alien "mmap" (function system-area-pointer
-						       system-area-pointer
-						       size-t int int int off-t))
-			(or addr +null+) length prot flags (or fd -1) offset)))
-    (if (sap= result map_failed)
-	(values nil (unix-errno))
-	(values result 0))))
-
-(defun unix-munmap (addr length)
-  (declare (type system-area-pointer addr)
-	   (type (unsigned-byte 32) length))
-  (syscall ("munmap" system-area-pointer size-t) t addr length))
-
-(defun unix-msync (addr length flags)
-  (declare (type system-area-pointer addr)
-	   (type (unsigned-byte 32) length)
-	   (type (signed-byte 32) flags))
-  (syscall ("msync" system-area-pointer size-t int) t addr length flags))
-
-;;; Unix-rename accepts two files names and renames the first to the second.
-
-(defun unix-rename (name1 name2)
-  _N"Unix-rename renames the file with string name1 to the string
-   name2.  NIL and an error code is returned if an error occured."
-  (declare (type unix-pathname name1 name2))
-  (void-syscall ("rename" c-string c-string)
-		(%name->file name1) (%name->file name2)))
-
-;;; Unix-rmdir accepts a name and removes the associated directory.
-
-(defun unix-rmdir (name)
-  _N"Unix-rmdir attempts to remove the directory name.  NIL and
-   an error number is returned if an error occured."
-  (declare (type unix-pathname name))
-  (void-syscall ("rmdir" c-string) (%name->file name)))
-
-(def-alien-type fd-mask #-alpha unsigned-long #+alpha unsigned-int)
-
-(defconstant fd-setsize 1024)
-(defconstant nfdbits 32)
-  
-(def-alien-type nil
-  (struct fd-set
-	  (fds-bits (array fd-mask #.(/ fd-setsize nfdbits)))))
-
-;; not checked for linux...
-(defmacro fd-clr (offset fd-set)
-  (let ((word (gensym))
-	(bit (gensym)))
-    `(multiple-value-bind (,word ,bit) (floor ,offset nfdbits)
-       (setf (deref (slot ,fd-set 'fds-bits) ,word)
-	     (logand (deref (slot ,fd-set 'fds-bits) ,word)
-		     (32bit-logical-not
-		      (truly-the (unsigned-byte 32) (ash 1 ,bit))))))))
-
-;; not checked for linux...
-(defmacro fd-isset (offset fd-set)
-  (let ((word (gensym))
-	(bit (gensym)))
-    `(multiple-value-bind (,word ,bit) (floor ,offset nfdbits)
-       (logbitp ,bit (deref (slot ,fd-set 'fds-bits) ,word)))))
-
-;; not checked for linux...
-(defmacro fd-set (offset fd-set)
-  (let ((word (gensym))
-	(bit (gensym)))
-    `(multiple-value-bind (,word ,bit) (floor ,offset nfdbits)
-       (setf (deref (slot ,fd-set 'fds-bits) ,word)
-	     (logior (truly-the (unsigned-byte 32) (ash 1 ,bit))
-		     (deref (slot ,fd-set 'fds-bits) ,word))))))
-
-;; not checked for linux...
-(defmacro fd-zero (fd-set)
-  `(progn
-     ,@(loop for index upfrom 0 below (/ fd-setsize nfdbits)
-	 collect `(setf (deref (slot ,fd-set 'fds-bits) ,index) 0))))
-
-;;; TTY ioctl commands.
-
-(eval-when (compile load eval)
-
-(defconstant iocparm-mask #x3fff)
-(defconstant ioc_void #x00000000)
-(defconstant ioc_out #x40000000)
-(defconstant ioc_in #x80000000)
-(defconstant ioc_inout (logior ioc_in ioc_out))
-
-(defmacro define-ioctl-command (name dev cmd &optional arg parm-type)
-  _N"Define an ioctl command. If the optional ARG and PARM-TYPE are given
-  then ioctl argument size and direction are included as for ioctls defined
-  by _IO, _IOR, _IOW, or _IOWR. If DEV is a character then the ioctl type
-  is the characters code, else DEV may be an integer giving the type."
-  (let* ((type (if (characterp dev)
-		   (char-code dev)
-		   dev))
-	 (code (logior (ash type 8) cmd)))
-    (when arg
-      (setf code `(logior (ash (logand (alien-size ,arg :bytes) ,iocparm-mask)
-			       16)
-			  ,code)))
-    (when parm-type
-      (let ((dir (ecase parm-type
-		   (:void ioc_void)
-		   (:in ioc_in)
-		   (:out ioc_out)
-		   (:inout ioc_inout))))
-	(setf code `(logior ,dir ,code))))
-    `(eval-when (eval load compile)
-       (defconstant ,name ,code))))
-)
-
-;;; TTY ioctl commands.
-
-(define-ioctl-command TIOCGWINSZ #\T #x13)
-(define-ioctl-command TIOCSWINSZ #\T #x14)
-(define-ioctl-command TIOCNOTTY  #\T #x22)
-(define-ioctl-command TIOCSPGRP  #\T #x10)
-(define-ioctl-command TIOCGPGRP  #\T #x0F)
-
-;;; File ioctl commands.
-(define-ioctl-command FIONREAD #\T #x1B)
-
-;;; ioctl-types.h
-
-(def-alien-type nil
-  (struct winsize
-    (ws-row unsigned-short)		; rows, in characters
-    (ws-col unsigned-short)		; columns, in characters
-    (ws-xpixel unsigned-short)		; horizontal size, pixels
-    (ws-ypixel unsigned-short)))	; veritical size, pixels
-
-(defconstant f-getfl    3  _N"Get file flags")
-(defconstant f-setfl    4  _N"Set file flags")
-
-;;; Define some more compatibility macros to be backward compatible with
-;;; BSD systems which did not managed to hide these kernel macros. 
-
-(defconstant FAPPEND  o_append _N"depricated stuff")
-(defconstant FFSYNC   o_fsync  _N"depricated stuff")
-(defconstant FASYNC   o_async  _N"depricated stuff")
-(defconstant FNONBLOCK  o_nonblock _N"depricated stuff")
-(defconstant FNDELAY  o_ndelay _N"depricated stuff")
-
-(defun unix-mprotect (addr length prot)
-  (declare (type system-area-pointer addr)
-	   (type (unsigned-byte 32) length)
-           (type (integer 1 7) prot))
-  (syscall ("mprotect" system-area-pointer size-t int)
-	   t addr length prot))
-  
-;;;; Lisp types used by syscalls.
-
-(deftype unix-pathname () 'simple-string)
-(deftype unix-fd () `(integer 0 ,most-positive-fixnum))
-
-(deftype unix-file-mode () '(unsigned-byte 32))
-(deftype unix-pid () '(unsigned-byte 32))
-(deftype unix-uid () '(unsigned-byte 32))
-(deftype unix-gid () '(unsigned-byte 32))
-
-;;; Operations on Unix Directories.
-
-;;; direntry.h
-
-(def-alien-type nil
-  (struct dirent
-    #+glibc2.1
-    (d-ino ino-t)                       ; inode number of entry
-    #-glibc2.1
-    (d-ino ino64-t)                     ; inode number of entry
-    (d-off off-t)                       ; offset of next disk directory entry
-    (d-reclen unsigned-short)		; length of this record
-    (d_type unsigned-char)
-    (d-name (array char 256))))		; name must be no longer than this
-
-(export '(open-dir read-dir close-dir))
-
-(defstruct (%directory
-	     (:constructor make-directory)
-	     (:conc-name directory-)
-	     (:print-function %print-directory))
-  name
-  (dir-struct (required-argument) :type system-area-pointer))
-
-(defun %print-directory (dir stream depth)
-  (declare (ignore depth))
-  (format stream "#<Directory ~S>" (directory-name dir)))
-
-(defun open-dir (pathname)
-  (declare (type unix-pathname pathname))
-  (when (string= pathname "")
-    (setf pathname "."))
-  (let ((kind (unix-file-kind pathname)))
-    (case kind
-      (:directory
-       (let ((dir-struct
-	      (alien-funcall (extern-alien "opendir"
-					   (function system-area-pointer
-						     c-string))
-			     (%name->file pathname))))
-	 (if (zerop (sap-int dir-struct))
-	     (values nil (unix-errno))
-	     (make-directory :name pathname :dir-struct dir-struct))))
-      ((nil)
-       (values nil enoent))
-      (t
-       (values nil enotdir)))))
-
-(defun read-dir (dir)
-  (declare (type %directory dir))
-  (let ((daddr (alien-funcall (extern-alien "readdir64"
-					    (function system-area-pointer
-						      system-area-pointer))
-			      (directory-dir-struct dir))))
-    (declare (type system-area-pointer daddr))
-    (if (zerop (sap-int daddr))
-	nil
-	(with-alien ((dirent (* (struct dirent)) daddr))
-	  (values (%file->name (cast (slot dirent 'd-name) c-string))
-		  (slot dirent 'd-ino))))))
-
-(defun close-dir (dir)
-  (declare (type %directory dir))
-  (alien-funcall (extern-alien "closedir"
-			       (function void system-area-pointer))
-		 (directory-dir-struct dir))
-  nil)
-
-(defconstant rusage_self 0 _N"The calling process.")
-(defconstant rusage_children -1 _N"Terminated child processes.")
-(defconstant rusage_both -2)
-
-(def-alien-type nil
-  (struct rusage
-    (ru-utime (struct timeval))		; user time used
-    (ru-stime (struct timeval))		; system time used.
-    (ru-maxrss long)                    ; Maximum resident set size (in kilobytes)
-    (ru-ixrss long)			; integral shared memory size
-    (ru-idrss long)			; integral unshared data "
-    (ru-isrss long)			; integral unshared stack "
-    (ru-minflt long)			; page reclaims
-    (ru-majflt long)			; page faults
-    (ru-nswap long)			; swaps
-    (ru-inblock long)			; block input operations
-    (ru-oublock long)			; block output operations
-    (ru-msgsnd long)			; messages sent
-    (ru-msgrcv long)			; messages received
-    (ru-nsignals long)			; signals received
-    (ru-nvcsw long)			; voluntary context switches
-    (ru-nivcsw long)))
-
-(declaim (inline unix-fast-getrusage))
-(defun unix-fast-getrusage (who)
-  _N"Like call getrusage, but return only the system and user time, and returns
-   the seconds and microseconds as separate values."
-  (declare (values (member t)
-		   (unsigned-byte 31) (mod 1000000)
-		   (unsigned-byte 31) (mod 1000000)))
-  (with-alien ((usage (struct rusage)))
-    (syscall* ("getrusage" int (* (struct rusage)))
-	      (values t
-		      (slot (slot usage 'ru-utime) 'tv-sec)
-		      (slot (slot usage 'ru-utime) 'tv-usec)
-		      (slot (slot usage 'ru-stime) 'tv-sec)
-		      (slot (slot usage 'ru-stime) 'tv-usec))
-	      who (addr usage))))
-
-(defun unix-getrusage (who)
-  _N"Unix-getrusage returns information about the resource usage
-   of the process specified by who.  Who can be either the
-   current process (rusage_self) or all of the terminated
-   child processes (rusage_children).  NIL and an error number
-   is returned if the call fails."
-  (with-alien ((usage (struct rusage)))
-    (syscall ("getrusage" int (* (struct rusage)))
-	      (values t
-		      (+ (* (slot (slot usage 'ru-utime) 'tv-sec) 1000000)
-			 (slot (slot usage 'ru-utime) 'tv-usec))
-		      (+ (* (slot (slot usage 'ru-stime) 'tv-sec) 1000000)
-			 (slot (slot usage 'ru-stime) 'tv-usec))
-		      (slot usage 'ru-maxrss)
-		      (slot usage 'ru-ixrss)
-		      (slot usage 'ru-idrss)
-		      (slot usage 'ru-isrss)
-		      (slot usage 'ru-minflt)
-		      (slot usage 'ru-majflt)
-		      (slot usage 'ru-nswap)
-		      (slot usage 'ru-inblock)
-		      (slot usage 'ru-oublock)
-		      (slot usage 'ru-msgsnd)
-		      (slot usage 'ru-msgrcv)
-		      (slot usage 'ru-nsignals)
-		      (slot usage 'ru-nvcsw)
-		      (slot usage 'ru-nivcsw))
-	      who (addr usage))))
-
-;;;; Socket support.
-
-;;; Looks a bit naked.
-
-(def-alien-routine ("socket" unix-socket) int
-  (domain int)
-  (type int)
-  (protocol int))
-
-(def-alien-routine ("connect" unix-connect) int
-  (socket int)
-  (sockaddr (* t))
-  (len int))
-
-(def-alien-routine ("bind" unix-bind) int
-  (socket int)
-  (sockaddr (* t))
-  (len int))
-
-(def-alien-routine ("listen" unix-listen) int
-  (socket int)
-  (backlog int))
-
-(def-alien-routine ("accept" unix-accept) int
-  (socket int)
-  (sockaddr (* t))
-  (len int :in-out))
-
-(def-alien-routine ("recv" unix-recv) int
-  (fd int)
-  (buffer c-string)
-  (length int)
-  (flags int))
-
-(def-alien-routine ("send" unix-send) int
-  (fd int)
-  (buffer c-string)
-  (length int)
-  (flags int))
-
-(def-alien-routine ("getpeername" unix-getpeername) int
-  (socket int)
-  (sockaddr (* t))
-  (len (* unsigned)))
-
-(def-alien-routine ("getsockname" unix-getsockname) int
-  (socket int)
-  (sockaddr (* t))
-  (len (* unsigned)))
-
-(def-alien-routine ("getsockopt" unix-getsockopt) int
-  (socket int)
-  (level int)
-  (optname int)
-  (optval (* t))
-  (optlen unsigned :in-out))
-
-(def-alien-routine ("setsockopt" unix-setsockopt) int
-  (socket int)
-  (level int)
-  (optname int)
-  (optval (* t))
-  (optlen unsigned))
-
-;; Datagram support
-
-(def-alien-routine ("recvfrom" unix-recvfrom) int
-  (fd int)
-  (buffer c-string)
-  (length int)
-  (flags int)
-  (sockaddr (* t))
-  (len int :in-out))
-
-(def-alien-routine ("sendto" unix-sendto) int
-  (fd int)
-  (buffer c-string)
-  (length int)
-  (flags int)
-  (sockaddr (* t))
-  (len int))
-
-(def-alien-routine ("shutdown" unix-shutdown) int
-  (socket int)
-  (level int))
-
-;;; sys/select.h
-
-;;; UNIX-FAST-SELECT -- public.
-;;;
-(defmacro unix-fast-select (num-descriptors
-			    read-fds write-fds exception-fds
-			    timeout-secs &optional (timeout-usecs 0))
-  _N"Perform the UNIX select(2) system call."
-  (declare (type (integer 0 #.FD-SETSIZE) num-descriptors) 
-	   (type (or (alien (* (struct fd-set))) null) 
-		 read-fds write-fds exception-fds) 
-	   (type (or null (unsigned-byte 31)) timeout-secs) 
-	   (type (unsigned-byte 31) timeout-usecs) 
-	   (optimize (speed 3) (safety 0) (inhibit-warnings 3)))
-  `(let ((timeout-secs ,timeout-secs))
-     (with-alien ((tv (struct timeval)))
-       (when timeout-secs
-	 (setf (slot tv 'tv-sec) timeout-secs)
-	 (setf (slot tv 'tv-usec) ,timeout-usecs))
-       (int-syscall ("select" int (* (struct fd-set)) (* (struct fd-set))
-		     (* (struct fd-set)) (* (struct timeval)))
-		    ,num-descriptors ,read-fds ,write-fds ,exception-fds
-		    (if timeout-secs (alien-sap (addr tv)) (int-sap 0))))))
-
-
-;;; Unix-select accepts sets of file descriptors and waits for an event
-;;; to happen on one of them or to time out.
-
-(defmacro num-to-fd-set (fdset num)
-  `(if (fixnump ,num)
-       (progn
-	 (setf (deref (slot ,fdset 'fds-bits) 0) ,num)
-	 ,@(loop for index upfrom 1 below (/ fd-setsize nfdbits)
-	     collect `(setf (deref (slot ,fdset 'fds-bits) ,index) 0)))
-       (progn
-	 ,@(loop for index upfrom 0 below (/ fd-setsize nfdbits)
-	     collect `(setf (deref (slot ,fdset 'fds-bits) ,index)
-			    (ldb (byte nfdbits ,(* index nfdbits)) ,num))))))
-
-(defmacro fd-set-to-num (nfds fdset)
-  `(if (<= ,nfds nfdbits)
-       (deref (slot ,fdset 'fds-bits) 0)
-       (+ ,@(loop for index upfrom 0 below (/ fd-setsize nfdbits)
-	      collect `(ash (deref (slot ,fdset 'fds-bits) ,index)
-			    ,(* index nfdbits))))))
-
-(defun unix-select (nfds rdfds wrfds xpfds to-secs &optional (to-usecs 0))
-  _N"Unix-select examines the sets of descriptors passed as arguments
-   to see if they are ready for reading and writing.  See the UNIX
-   Programmers Manual for more information."
-  (declare (type (integer 0 #.FD-SETSIZE) nfds)
-	   (type unsigned-byte rdfds wrfds xpfds)
-	   (type (or (unsigned-byte 31) null) to-secs)
-	   (type (unsigned-byte 31) to-usecs)
-	   (optimize (speed 3) (safety 0) (inhibit-warnings 3)))
-  (with-alien ((tv (struct timeval))
-	       (rdf (struct fd-set))
-	       (wrf (struct fd-set))
-	       (xpf (struct fd-set)))
-    (when to-secs
-      (setf (slot tv 'tv-sec) to-secs)
-      (setf (slot tv 'tv-usec) to-usecs))
-    (num-to-fd-set rdf rdfds)
-    (num-to-fd-set wrf wrfds)
-    (num-to-fd-set xpf xpfds)
-    (macrolet ((frob (lispvar alienvar)
-		 `(if (zerop ,lispvar)
-		      (int-sap 0)
-		      (alien-sap (addr ,alienvar)))))
-      (syscall ("select" int (* (struct fd-set)) (* (struct fd-set))
-		(* (struct fd-set)) (* (struct timeval)))
-	       (values result
-		       (fd-set-to-num nfds rdf)
-		       (fd-set-to-num nfds wrf)
-		       (fd-set-to-num nfds xpf))
-	       nfds (frob rdfds rdf) (frob wrfds wrf) (frob xpfds xpf)
-	       (if to-secs (alien-sap (addr tv)) (int-sap 0))))))
-
-(defun unix-symlink (name1 name2)
-  _N"Unix-symlink creates a symbolic link named name2 to the file
-   named name1.  NIL and an error number is returned if the call
-   is unsuccessful."
-  (declare (type unix-pathname name1 name2))
-  (void-syscall ("symlink" c-string c-string)
-		(%name->file name1) (%name->file name2)))
-
-(def-alien-routine ("gethostid" unix-gethostid) unsigned-long
-  _N"Unix-gethostid returns a 32-bit integer which provides unique
-   identification for the host machine.")
-
-(def-alien-routine ("getpid" unix-getpid) int
-  _N"Unix-getpid returns the process-id of the current process.")
-
-;;;; User and group database structures: <pwd.h> and <grp.h>
-(defstruct user-info
-  (name "" :type string)
-  (password "" :type string)
-  (uid 0 :type unix-uid)
-  (gid 0 :type unix-gid)
-  (gecos "" :type string)
-  (dir "" :type string)
-  (shell "" :type string))
-
-(defun unix-getpwuid (uid)
-  _N"Return a USER-INFO structure for the user identified by UID, or NIL if not found."
-  (declare (type unix-uid uid))
-  (with-alien ((buf (array c-call:char 1024))
-	       (user-info (struct passwd))
-               (result (* (struct passwd))))
-    (let ((returned
-	   (alien-funcall
-	    (extern-alien "getpwuid_r"
-			  (function c-call:int
-                                    c-call:unsigned-int
-                                    (* (struct passwd))
-                                    (* c-call:char)
-                                    c-call:unsigned-int
-                                    (* (* (struct passwd)))))
-	    uid
-	    (addr user-info)
-	    (cast buf (* c-call:char))
-	    1024
-            (addr result))))
-      (when (zerop returned)
-        (make-user-info
-         :name (string (cast (slot result 'pw-name) c-call:c-string))
-         :password (string (cast (slot result 'pw-passwd) c-call:c-string))
-         :uid (slot result 'pw-uid)
-         :gid (slot result 'pw-gid)
-         :gecos (string (cast (slot result 'pw-gecos) c-call:c-string))
-         :dir (string (cast (slot result 'pw-dir) c-call:c-string))
-         :shell (string (cast (slot result 'pw-shell) c-call:c-string)))))))
-
-(declaim (inline unix-gettimeofday))
-(defun unix-gettimeofday ()
-  _N"If it works, unix-gettimeofday returns 5 values: T, the seconds and
-   microseconds of the current time of day, the timezone (in minutes west
-   of Greenwich), and a daylight-savings flag.  If it doesn't work, it
-   returns NIL and the errno."
-  (with-alien ((tv (struct timeval))
-	       (tz (struct timezone)))
-    (syscall* ("gettimeofday" (* (struct timeval)) 
-			      (* (struct timezone)))
-	      (values T
-		      (slot tv 'tv-sec)
-		      (slot tv 'tv-usec)
-		      (slot tz 'tz-minuteswest)
-		      (slot tz 'tz-dsttime))
-	      (addr tv)
-	      (addr tz))))
-
-;;; Unix-utimes changes the accessed and updated times on UNIX
-;;; files.  The first argument is the filename (a string) and
-;;; the second argument is a list of the 4 times- accessed and
-;;; updated seconds and microseconds.
-
-(defun unix-utimes (file atime-sec atime-usec mtime-sec mtime-usec)
-  _N"Unix-utimes sets the 'last-accessed' and 'last-updated'
-   times on a specified file.  NIL and an error number is
-   returned if the call is unsuccessful."
-  (declare (type unix-pathname file)
-	   (type (alien unsigned-long)
-		 atime-sec atime-usec
-		 mtime-sec mtime-usec))
-  (with-alien ((tvp (array (struct timeval) 2)))
-    (setf (slot (deref tvp 0) 'tv-sec) atime-sec)
-    (setf (slot (deref tvp 0) 'tv-usec) atime-usec)
-    (setf (slot (deref tvp 1) 'tv-sec) mtime-sec)
-    (setf (slot (deref tvp 1) 'tv-usec) mtime-usec)
-    (void-syscall ("utimes" c-string (* (struct timeval)))
-		  file
-		  (cast tvp (* (struct timeval))))))
-
-(def-alien-routine ("ttyname" unix-ttyname) c-string
-  (fd int))
-
-(def-alien-routine ("isatty" unix-isatty) boolean
-  _N"Accepts a Unix file descriptor and returns T if the device
-  associated with it is a terminal."
-  (fd int))
-
-;;; pty.h
-
-(defun unix-openpty (name termp winp)
-  _N"Create pseudo tty master slave pair with NAME and set terminal
-   attributes according to TERMP and WINP and return handles for both
-   ends in AMASTER and ASLAVE."
-  (with-alien ((amaster int)
-	       (aslave int))
-    (values
-     (int-syscall ("openpty" (* int) (* int) c-string (* (struct termios))
-			     (* (struct winsize)))
-		  (addr amaster) (addr aslave) name termp winp)
-     amaster aslave)))
-
-(def-alien-type nil
-  (struct utsname
-    (sysname (array char 65))
-    (nodename (array char 65))
-    (release (array char 65))
-    (version (array char 65))
-    (machine (array char 65))
-    (domainname (array char 65))))
-
-(defun unix-uname ()
-  _N"Unix-uname returns the name and information about the current kernel. The
-  values returned upon success are: sysname, nodename, release, version,
-  machine, and domainname. Upon failure, 'nil and the 'errno are returned."
-  (with-alien ((utsname (struct utsname)))
-    (syscall* ("uname" (* (struct utsname)))
-	      (values (cast (slot utsname 'sysname) c-string)
-		      (cast (slot utsname 'nodename) c-string)
-		      (cast (slot utsname 'release) c-string)
-		      (cast (slot utsname 'version) c-string)
-		      (cast (slot utsname 'machine) c-string)
-		     (cast (slot utsname 'domainname) c-string))
-	      (addr utsname))))
-
-;;; sys/ioctl.h
-
-(defun unix-ioctl (fd cmd arg)
-  _N"Unix-ioctl performs a variety of operations on open i/o
-   descriptors.  See the UNIX Programmer's Manual for more
-   information."
-  (declare (type unix-fd fd)
-	   (type (unsigned-byte 32) cmd))
-  (int-syscall ("ioctl" int unsigned-int (* char)) fd cmd arg))
-
-
-;;; Unix-mkdir accepts a name and a mode and attempts to create the
-;;; corresponding directory with mode mode.
-
-(defun unix-mkdir (name mode)
-  _N"Unix-mkdir creates a new directory with the specified name and mode..
-   (Same as those for unix-chmod.)  It returns T upon success, otherwise
-   NIL and an error number."
-  (declare (type unix-pathname name)
-	   (type unix-file-mode mode))
-  (void-syscall ("mkdir" c-string int) (%name->file name) mode))
-
-;;; timebits.h
-
-;; A time value that is accurate to the nearest
-;; microsecond but also has a range of years.  
-(def-alien-type nil
-  (struct timeval
-	  (tv-sec time-t)	; seconds
-	  (tv-usec time-t)))	; and microseconds
-
-;;; sys/time.h
-
-;; Structure crudely representing a timezone.
-;;   This is obsolete and should never be used. 
-(def-alien-type nil
-  (struct timezone
-    (tz-minuteswest int)		; minutes west of Greenwich
-    (tz-dsttime	int)))			; type of dst correction
-
-;; Type of the second argument to `getitimer' and
-;; the second and third arguments `setitimer'. 
-(def-alien-type nil
-  (struct itimerval
-    (it-interval (struct timeval))	; timer interval
-    (it-value (struct timeval))))	; current value
-
-(defconstant ITIMER-REAL 0)
-(defconstant ITIMER-VIRTUAL 1)
-(defconstant ITIMER-PROF 2)
-
-(defun unix-getitimer (which)
-  _N"Unix-getitimer returns the INTERVAL and VALUE slots of one of
-   three system timers (:real :virtual or :profile). On success,
-   unix-getitimer returns 5 values,
-   T, it-interval-secs, it-interval-usec, it-value-secs, it-value-usec."
-  (declare (type (member :real :virtual :profile) which)
-	   (values t
-		   (unsigned-byte 29)(mod 1000000)
-		   (unsigned-byte 29)(mod 1000000)))
-  (let ((which (ecase which
-		 (:real ITIMER-REAL)
-		 (:virtual ITIMER-VIRTUAL)
-		 (:profile ITIMER-PROF))))
-    (with-alien ((itv (struct itimerval)))
-      (syscall* ("getitimer" int (* (struct itimerval)))
-		(values T
-			(slot (slot itv 'it-interval) 'tv-sec)
-			(slot (slot itv 'it-interval) 'tv-usec)
-			(slot (slot itv 'it-value) 'tv-sec)
-			(slot (slot itv 'it-value) 'tv-usec))
-		which (alien-sap (addr itv))))))
-
-(defun unix-setitimer (which int-secs int-usec val-secs val-usec)
-  _N" Unix-setitimer sets the INTERVAL and VALUE slots of one of
-   three system timers (:real :virtual or :profile). A SIGALRM signal
-   will be delivered VALUE <seconds+microseconds> from now. INTERVAL,
-   when non-zero, is <seconds+microseconds> to be loaded each time
-   the timer expires. Setting INTERVAL and VALUE to zero disables
-   the timer. See the Unix man page for more details. On success,
-   unix-setitimer returns the old contents of the INTERVAL and VALUE
-   slots as in unix-getitimer."
-  (declare (type (member :real :virtual :profile) which)
-	   (type (unsigned-byte 29) int-secs val-secs)
-	   (type (integer 0 (1000000)) int-usec val-usec)
-	   (values t
-		   (unsigned-byte 29)(mod 1000000)
-		   (unsigned-byte 29)(mod 1000000)))
-  (let ((which (ecase which
-		 (:real ITIMER-REAL)
-		 (:virtual ITIMER-VIRTUAL)
-		 (:profile ITIMER-PROF))))
-    (with-alien ((itvn (struct itimerval))
-		 (itvo (struct itimerval)))
-      (setf (slot (slot itvn 'it-interval) 'tv-sec ) int-secs
-	    (slot (slot itvn 'it-interval) 'tv-usec) int-usec
-	    (slot (slot itvn 'it-value   ) 'tv-sec ) val-secs
-	    (slot (slot itvn 'it-value   ) 'tv-usec) val-usec)
-      (syscall* ("setitimer" int (* (struct timeval))(* (struct timeval)))
-		(values T
-			(slot (slot itvo 'it-interval) 'tv-sec)
-			(slot (slot itvo 'it-interval) 'tv-usec)
-			(slot (slot itvo 'it-value) 'tv-sec)
-			(slot (slot itvo 'it-value) 'tv-usec))
-		which (alien-sap (addr itvn))(alien-sap (addr itvo))))))
-
-
-;;; termbits.h
-
-(def-alien-type cc-t unsigned-char)
-(def-alien-type speed-t  unsigned-int)
-(def-alien-type tcflag-t unsigned-int)
-
-(defconstant +NCCS+ 32
-  _N"Size of control character vector.")
-
-(def-alien-type nil
-  (struct termios
-    (c-iflag tcflag-t)
-    (c-oflag tcflag-t)
-    (c-cflag tcflag-t)
-    (c-lflag tcflag-t)
-    (c-line cc-t)
-    (c-cc (array cc-t #.+NCCS+))
-    (c-ispeed speed-t)
-    (c-ospeed speed-t)))
-
-;; c_cc characters
-
-(defmacro def-enum (inc cur &rest names)
-  (flet ((defform (name)
-	     (prog1 (when name `(defconstant ,name ,cur))
-	       (setf cur (funcall inc cur 1)))))
-    `(progn ,@(mapcar #'defform names))))
-
-(def-enum + 0 vintr vquit verase
-	  vkill veof vtime
-	  vmin vswtc vstart
-	  vstop vsusp veol
-	  vreprint vdiscard vwerase
-	  vlnext veol2)
-(defvar vdsusp vsusp)
-
-(def-enum + 0 tcsanow tcsadrain tcsaflush)
-
-;; c_iflag bits
-(def-enum ash 1 tty-ignbrk tty-brkint tty-ignpar tty-parmrk tty-inpck
-	  tty-istrip tty-inlcr tty-igncr tty-icrnl tty-iuclc
-	  tty-ixon tty-ixany tty-ixoff 
-	  tty-imaxbel)
-
-;; c_oflag bits
-(def-enum ash 1 tty-opost tty-olcuc tty-onlcr tty-ocrnl tty-onocr
-	  tty-onlret tty-ofill tty-ofdel tty-nldly)
-
-;; c_lflag bits
-(def-enum ash 1 tty-isig tty-icanon tty-xcase tty-echo tty-echoe
-	  tty-echok tty-echonl tty-noflsh
-	  tty-tostop tty-echoctl tty-echoprt
-	  tty-echoke tty-flusho
-	  tty-pendin tty-iexten)
-
-(defun unix-tcgetattr (fd termios)
-  _N"Get terminal attributes."
-  (declare (type unix-fd fd))
-  (void-syscall ("tcgetattr" int (* (struct termios))) fd termios))
-
-(defun unix-tcsetattr (fd opt termios)
-  _N"Set terminal attributes."
-  (declare (type unix-fd fd))
-  (void-syscall ("tcsetattr" int int (* (struct termios))) fd opt termios))
-
-(defconstant writeown #o200 _N"Write by owner")
-
-;;; termios.h
-
-(defconstant terminal-speeds
-  '#(0 50 75 110 134 150 200 300 600 1200 1800 2400
-     4800 9600 19200 38400 57600 115200 230400))
-
-(defun unix-cfgetospeed (termios)
-  _N"Get terminal output speed."
-  (multiple-value-bind (speed errno)
-      (int-syscall ("cfgetospeed" (* (struct termios))) termios)
-    (if speed
-	(values (svref terminal-speeds speed) 0)
-      (values speed errno))))
-
-
-;;; For asdf.  Well, only getenv, but might as well make it symmetric.
-
-;; Environment manipulation; man getenv(3)
-(def-alien-routine ("getenv" unix-getenv) c-call:c-string
-  (name c-call:c-string) 
-  _N"Get the value of the environment variable named Name.  If no such
-  variable exists, Nil is returned.")
-
-;; This doesn't exist in Solaris 8 but does exist in Solaris 10.
-(def-alien-routine ("setenv" unix-setenv) c-call:int
-  (name c-call:c-string)
-  (value c-call:c-string)
-  (overwrite c-call:int)
-  _N"Adds the environment variable named Name to the environment with
-  the given Value if Name does not already exist. If Name does exist,
-  the value is changed to Value if Overwrite is non-zero.  Otherwise,
-  the value is not changed.")
-
-
-(def-alien-routine ("putenv" unix-putenv) c-call:int
-  (name-value c-call:c-string)
-  _N"Adds or changes the environment.  Name-value must be a string of
-  the form "name=value".  If the name does not exist, it is added.
-  If name does exist, the value is updated to the given value.")
-
-(def-alien-routine ("unsetenv" unix-unsetenv) c-call:int
-  (name c-call:c-string)
-  _N"Removes the variable Name from the environment")
-
-
-;;; For slime, which wants to use unix-execve.
-
-(defmacro round-bytes-to-words (n)
-  `(logand (the fixnum (+ (the fixnum ,n) 3)) (lognot 3)))
-
-;;;
-;;; STRING-LIST-TO-C-STRVEC	-- Internal
-;;; 
-;;; STRING-LIST-TO-C-STRVEC is a function which takes a list of
-;;; simple-strings and constructs a C-style string vector (strvec) --
-;;; a null-terminated array of pointers to null-terminated strings.
-;;; This function returns two values: a sap and a byte count.  When the
-;;; memory is no longer needed it should be deallocated with
-;;; vm_deallocate.
-;;; 
-(defun string-list-to-c-strvec (string-list)
-  ;;
-  ;; Make a pass over string-list to calculate the amount of memory
-  ;; needed to hold the strvec.
-  (let ((string-bytes 0)
-	(vec-bytes (* 4 (1+ (length string-list)))))
-    (declare (fixnum string-bytes vec-bytes))
-    (dolist (s string-list)
-      (check-type s simple-string)
-      (incf string-bytes (round-bytes-to-words (1+ (length s)))))
-    ;;
-    ;; Now allocate the memory and fill it in.
-    (let* ((total-bytes (+ string-bytes vec-bytes))
-	   (vec-sap (system:allocate-system-memory total-bytes))
-	   (string-sap (sap+ vec-sap vec-bytes))
-	   (i 0))
-      (declare (type (and unsigned-byte fixnum) total-bytes i)
-	       (type system:system-area-pointer vec-sap string-sap))
-      (dolist (s string-list)
-	(declare (simple-string s))
-	(let ((n (length s)))
-	  ;; 
-	  ;; Blast the string into place
-	  #-unicode
-	  (kernel:copy-to-system-area (the simple-string s)
-				      (* vm:vector-data-offset vm:word-bits)
-				      string-sap 0
-				      (* (1+ n) vm:byte-bits))
-	  #+unicode
-	  (progn
-	    ;; FIXME: Do we need to apply some kind of transformation
-	    ;; to convert Lisp unicode strings to C strings?  Utf-8?
-	    (dotimes (k n)
-	      (setf (sap-ref-8 string-sap k)
-		    (logand #xff (char-code (aref s k)))))
-	    (setf (sap-ref-8 string-sap n) 0))
-	  ;; 
-	  ;; Blast the pointer to the string into place
-	  (setf (sap-ref-sap vec-sap i) string-sap)
-	  (setf string-sap (sap+ string-sap (round-bytes-to-words (1+ n))))
-	  (incf i 4)))
-      ;; Blast in last null pointer
-      (setf (sap-ref-sap vec-sap i) (int-sap 0))
-      (values vec-sap total-bytes))))
-
-(defun sub-unix-execve (program arg-list env-list)
-  (let ((argv nil)
-	(argv-bytes 0)
-	(envp nil)
-	(envp-bytes 0)
-	result error-code)
-    (unwind-protect
-	(progn
-	  ;; Blast the stuff into the proper format
-	  (multiple-value-setq
-	      (argv argv-bytes)
-	    (string-list-to-c-strvec arg-list))
-	  (multiple-value-setq
-	      (envp envp-bytes)
-	    (string-list-to-c-strvec env-list))
-	  ;;
-	  ;; Now do the system call
-	  (multiple-value-setq
-	      (result error-code)
-	    (int-syscall ("execve"
-			  c-string system-area-pointer system-area-pointer)
-			 program argv envp)))
-      ;; 
-      ;; Deallocate memory
-      (when argv
-	(system:deallocate-system-memory argv argv-bytes))
-      (when envp
-	(system:deallocate-system-memory envp envp-bytes)))
-    (values result error-code)))
-
-;;;; UNIX-EXECVE
-(defun unix-execve (program &optional arg-list
-			    (environment *environment-list*))
-  _N"Executes the Unix execve system call.  If the system call suceeds, lisp
-   will no longer be running in this process.  If the system call fails this
-   function returns two values: NIL and an error code.  Arg-list should be a
-   list of simple-strings which are passed as arguments to the exec'ed program.
-   Environment should be an a-list mapping symbols to simple-strings which this
-   function bashes together to form the environment for the exec'ed program."
-  (check-type program simple-string)
-  (let ((env-list (let ((envlist nil))
-		    (dolist (cons environment)
-		      (push (if (cdr cons)
-				(concatenate 'simple-string
-					     (string (car cons)) "="
-					     (cdr cons))
-				(car cons))
-			    envlist))
-		    envlist)))
-    (sub-unix-execve (%name->file program) arg-list env-list)))
-
-(defun unix-fork ()
-  _N"Executes the unix fork system call.  Returns 0 in the child and the pid
-   of the child in the parent if it works, or NIL and an error number if it
-   doesn't work."
-  (int-syscall ("fork")))
=====================================
src/lisp/Config.x86_common
=====================================
@@ -45,10 +45,11 @@ endif
 CPPFLAGS := $(CPP_DEFINE_OPTIONS) $(CPP_INCLUDE_OPTIONS) 
 CFLAGS += -Wstrict-prototypes -Wall -g -fno-omit-frame-pointer
-# gcc 8.1.1 and 8.3.1 (and probably anything after 8.1.1?) won't
-# produce a working lisp with -O2.  Just use -O1.
-CFLAGS += -O1
-ASFLAGS = -g 
+# Default optimization level.  This can be changed in the individual
+# configs.
+COPT = -O2
+
+ASFLAGS = -g
ASSEM_SRC = x86-assem.S
 ARCH_SRC = x86-arch.c
=====================================
src/lisp/Config.x86_darwin
=====================================
@@ -6,6 +6,7 @@ include Config.x86_common
 # you have the SDK available.
 MIN_VER = -mmacosx-version-min=10.6
+CFLAGS += $(COPT)
 CPPFLAGS += -DDARWIN $(MIN_VER) -m32
 CFLAGS += -g3 -mtune=generic
 ASFLAGS += -g3 $(MIN_VER)
=====================================
src/lisp/Config.x86_freebsd
=====================================
@@ -3,6 +3,7 @@ include Config.x86_common
 # Set the path to your verison of GCC here.
 CC = gcc -m32
+CFLAGS += $(COPT)
 CPPFLAGS += -march=pentium4 -mfpmath=sse
UNDEFSYMPATTERN = -Xlinker -u -Xlinker &
=====================================
src/lisp/Config.x86_linux
=====================================
@@ -1,6 +1,10 @@
 # -*- Mode: makefile -*-
 include Config.x86_common
+# gcc 8.1.1 and 8.3.1 (and probably anything after 8.1.1?) won't
+# produce a working lisp with -O2.  Just use -O1.
+COPT = -O2
+CFLAGS += $(COPT)
 CPPFLAGS += -m32 -D__NO_CTYPE -D_GNU_SOURCE
 CFLAGS += -rdynamic  -march=pentium4 -mfpmath=sse -mtune=generic
=====================================
src/lisp/Config.x86_linux_clang
=====================================
@@ -3,6 +3,7 @@ include Config.x86_common
CC = clang
 CPPFLAGS += -m32 -D__NO_CTYPE -D_GNU_SOURCE
+CFLAGS += $(COPT)
 CFLAGS += -march=pentium4 -mfpmath=sse -mtune=generic
UNDEFSYMPATTERN = -Xlinker -u -Xlinker &
=====================================
src/lisp/Config.x86_netbsd
=====================================
@@ -1,6 +1,7 @@
 # -*- Mode: makefile -*-
 include Config.x86_common
+CFLAGS += $(COPT)
 CPPFLAGS += -march=pentium4 -mfpmath=sse
UNDEFSYMPATTERN = -Xlinker -u -Xlinker &
=====================================
src/lisp/Config.x86_solaris_sunc
=====================================
@@ -2,6 +2,7 @@
 include Config.sparc_common
CC = cc -xlibmieee -g
+CFLAGS += $(COPT)
 CFLAGS += -Di386
 CPP = cc -E
 DEPEND_FLAGS = -xM1
=====================================
src/lisp/gencgc.c
=====================================
@@ -8416,6 +8416,7 @@ char *
 alloc(int nbytes)
 {
     void *new_obj;
+
 #if !(defined(sparc) || (defined(DARWIN) && defined(__ppc__)))
     /*
      * *current-region-free-pointer* is the same as alloc-tn (=
@@ -8442,20 +8443,6 @@ alloc(int nbytes)
        set_current_region_free((lispobj) new_free_pointer);
             break;
    } else if (bytes_allocated <= auto_gc_trigger) {
-#if defined(i386) || defined(__x86_64)
-            /*
-             * Need to save and restore the FPU registers on x86, but only for
-             * sse2.  See Ticket #61.
-             *
-             * Not needed by sparc or ppc because we never call alloc from
-             * Lisp directly to do allocation.
-             */
-            FPU_STATE(fpu_state);
-
-            if (fpu_mode == SSE2) {
-                save_fpu_state(fpu_state);
-            }
-#endif
        /* Call gc_alloc.  */
        boxed_region.free_pointer = (void *) get_current_region_free();
        boxed_region.end_addr =
@@ -8466,11 +8453,6 @@ alloc(int nbytes)
        set_current_region_free((lispobj) boxed_region.free_pointer);
        set_current_region_end((lispobj) boxed_region.end_addr);
-#if defined(i386) || defined(__x86_64)
-            if (fpu_mode == SSE2) {
-                restore_fpu_state(fpu_state);
-            }
-#endif
             break;
    } else {
        /* Run GC and try again.  */
=====================================
src/lisp/x86-arch.h
=====================================
@@ -17,16 +17,14 @@ extern boolean os_support_sse2(void);
 #define FPU_STATE_SIZE 27
/* 
- * Need 512 byte area, aligned on a 16-byte boundary.  So allocate
- * 512+16 bytes of space and let the routine adjust the appropriate
- * alignment.
+ * Need 512 byte area, aligned on a 16-byte boundary.
  */
-#define SSE_STATE_SIZE ((512+16)/4)
+#define SSE_STATE_SIZE 512
/*
  * Just use the SSE size for both x87 and sse2 since the SSE size is
- * enough for either.
+ * enough for either.  Make sure it's on a 16-byte boundary.
  */
-#define FPU_STATE(name)    int name[SSE_STATE_SIZE];
+#define FPU_STATE(name)    u_int8_t name[SSE_STATE_SIZE] __attribute__((aligned(16)))
#endif
=====================================
src/lisp/x86-assem.S
=====================================
@@ -382,7 +382,39 @@ ENDFUNC(fastcopy16)
  * %eax = address
  */
 FUNCDEF(alloc_overflow_sse2)
-	STACK_PROLOGUE(20)
+	# Need 8*16 bytes for the xmm registers, and space to save ecx
+	# and edx, space for mxcsr, a temp, and one arg to pass to alloc.
+	# That's 8*16 + 5*4 = 148 bytes.  Might as well have a few
+	# more so the xmm0 area is 16-byte aligned. That makes it 160
+	# bytes.
+	#
+	# Stack looks like:
+	#
+	#      +160
+	#      +144 -> xmm7
+	#      +128 -> xmm6
+	#      +112 -> xmm5
+	#      +96  -> xmm4
+	#      +80  -> xmm3
+	#      +64  -> xmm2
+	#      +48  -> xmm1
+	#      +32  -> xmm0
+	#      +20  -> unused
+	#      +16  -> temp
+	#      +12  -> mxcsr
+	#      + 8  -> save ecx
+	#      + 4  -> save edx
+	#  esp + 0  -> arg for alloc
+	STACK_PROLOGUE(160)
+	movapd  %xmm0, (32 + 0*16)(%esp)
+	movapd  %xmm1, (32 + 1*16)(%esp)
+	movapd  %xmm2, (32 + 2*16)(%esp)
+	movapd  %xmm3, (32 + 3*16)(%esp)
+	movapd  %xmm4, (32 + 4*16)(%esp)
+	movapd  %xmm5, (32 + 5*16)(%esp)
+	movapd  %xmm6, (32 + 6*16)(%esp)
+	movapd  %xmm7, (32 + 7*16)(%esp)
+
    movl	%ecx, 8(%esp)	# Save ecx and edx registers
    movl	%edx, 4(%esp)
    stmxcsr 12(%esp)	# Save MXCSR
@@ -398,10 +430,20 @@ FUNCDEF(alloc_overflow_sse2)
    movl	4(%esp), %edx	# Restore edx and ecx registers.  eax has the return value.
    movl	8(%esp), %ecx
    ldmxcsr	12(%esp)
+
+	movapd  (32 + 0*16)(%esp), %xmm0
+	movapd  (32 + 1*16)(%esp), %xmm1
+	movapd  (32 + 2*16)(%esp), %xmm2
+	movapd  (32 + 3*16)(%esp), %xmm3
+	movapd  (32 + 4*16)(%esp), %xmm4
+	movapd  (32 + 5*16)(%esp), %xmm5
+	movapd  (32 + 6*16)(%esp), %xmm6
+	movapd  (32 + 7*16)(%esp), %xmm7
+
    STACK_EPILOGUE
    ret
 ENDFUNC(alloc_overflow_sse2)	
-		
+
 #ifdef LINKAGE_TABLE
/* Call into C code to resolve a linkage entry.  The initial code in the
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[Git][cmucl/cmucl][rtoy-issue-76-add-ansi-tests-to-ci] 18 commits: Fix #84: Remove code/unix-glibc2.lisp