Document new files for Linux i386/ELF port.

Fri Sep  8 16:32:12 1995  Ulrich Drepper  <drepper@gnu.ai.mit.edu>

        * sysdeps/unix/sysv/linux/Implies,
        sysdeps/unix/sysv/linux/Makefile, sysdeps/unix/sysv/linux/Subdirs,
        sysdeps/unix/sysv/linux/accept.S, sysdeps/unix/sysv/linux/adjtime.c,
        sysdeps/unix/sysv/linux/adjtimex.S, sysdeps/unix/sysv/linux/bind.S,
        sysdeps/unix/sysv/linux/connect.S, sysdeps/unix/sysv/linux/direct.h,
        sysdeps/unix/sysv/linux/dl-machine.h, sysdeps/unix/sysv/linux/errnos.h,
        sysdeps/unix/sysv/linux/fork.S, sysdeps/unix/sysv/linux/gethostid.c,
        sysdeps/unix/sysv/linux/gethostname.C,
        sysdeps/unix/sysv/linux/getpeername.S,
        sysdeps/unix/sysv/linux/getpgid.S, sysdeps/unix/sysv/linux/getpgrp.S,
	sysdeps/unix/sysv/linux/getsockname.S,
	sysdeps/unix/sysv/linux/getsockopt.S, sysdeps/unix/sysv/linux/gtty.S,
	sysdeps/unix/sysv/linux/listen.S, sysdeps/unix/sysv/linux/local_lim.h,
	sysdeps/unix/sysv/linux/madvise.c, sysdeps/unix/sysv/linux/msgctl.c,
	sysdeps/unix/sysv/linux/msgget.c, sysdeps/unix/sysv/linux/msgrcv.c,
	sysdeps/unix/sysv/linux/msgsnd.c, sysdeps/unix/sysv/linux/pipe.S,
	sysdeps/unix/sysv/linux/poll.c, sysdeps/unix/sysv/linux/readv.c,
	sysdeps/unix/sysv/linux/recv.S, sysdeps/unix/sysv/linux/recvfrom.S,
	sysdeps/unix/sysv/linux/recvmsg.S, sysdeps/unix/sysv/linux/semctl.c,
	sysdeps/unix/sysv/linux/semget.c, sysdeps/unix/sysv/linux/semop.c,
	sysdeps/unix/sysv/linux/send.S, sysdeps/unix/sysv/linux/sendmsg.S,
	sysdeps/unix/sysv/linux/sendto.S, sysdeps/unix/sysv/linux/setegid.c,
	sysdeps/unix/sysv/linux/seteuid.c, sysdeps/unix/sysv/linux/sethostid.c,
	sysdeps/unix/sysv/linux/setpgid.c, sysdeps/unix/sysv/linux/setpgrp.c,
	sysdeps/unix/sysv/linux/setsid.S, sysdeps/unix/sysv/linux/setsockopt.S,
	sysdeps/unix/sysv/linux/settimeofday.S,
	sysdeps/unix/sysv/linux/shmat.c, sysdeps/unix/sysv/linux/shmctl.c,
	sysdeps/unix/sysv/linux/shmdt.c, sysdeps/unix/sysv/linux/shmget.c,
	sysdeps/unix/sysv/linux/shutdown.S,
	sysdeps/unix/sysv/linux/sigaction.S, sysdeps/unix/sysv/linux/signal.S,
	sysdeps/unix/sysv/linux/sigpending.S, sysdeps/unix/sysv/linux/sigset.h,
	sysdeps/unix/sysv/linux/sockaddrcom.h,
	sysdeps/unix/sysv/linux/socketpair.S, sysdeps/unix/sysv/linux/speed.c,
	sysdeps/unix/sysv/linux/statbuf.h, sysdeps/unix/sysv/linux/stty.S,
	sysdeps/unix/sysv/linux/syscall.h, sysdeps/unix/sysv/linux/sysconf.c,
	sysdeps/unix/sysv/linux/tcdrain.c, sysdeps/unix/sysv/linux/tcflow.c,
	sysdeps/unix/sysv/linux/tcflush.c, sysdeps/unix/sysv/linux/tcgetattr.c,
	sysdeps/unix/sysv/linux/tcsetattr.c,
	sysdeps/unix/sysv/linux/termbits.h, sysdeps/unix/sysv/linux/ualarm.c,
	sysdeps/unix/sysv/linux/ulimit.c, sysdeps/unix/sysv/linux/usleep.c,
	sysdeps/unix/sysv/linux/utsnamelen.h, sysdeps/unix/sysv/linux/vfork.c,
	sysdeps/unix/sysv/linux/wait.c, sysdeps/unix/sysv/linux/wait4.S,
	sysdeps/unix/sysv/linux/waitpid.c, sysdeps/unix/sysv/linux/writev.c:
	New Linux/ELF specific, architecture independent files.

	sysdeps/unix/sysv/linux/i386/Dist,
	sysdeps/unix/sysv/linux/i386/Makefile,
	sysdeps/unix/sysv/linux/i386/brk.S,
	sysdeps/unix/sysv/linux/i386/fcntlbits.h,
	sysdeps/unix/sysv/linux/i386/fpu_control.c,
	sysdeps/unix/sysv/linux/i386/fpu_control.h,
	sysdeps/unix/sysv/linux/i386/fstat.S,
	sysdeps/unix/sysv/linux/i386/fxstat.S,
	sysdeps/unix/sysv/linux/i386/ieee_fpu.c,
	sysdeps/unix/sysv/linux/i386/init-first.S,
	sysdeps/unix/sysv/linux/i386/ipc.S,
	sysdeps/unix/sysv/linux/i386/lstat.S,
	sysdeps/unix/sysv/linux/i386/lxstat.S,
	sysdeps/unix/sysv/linux/i386/mknod.S,
	sysdeps/unix/sysv/linux/i386/mmap.S,
	sysdeps/unix/sysv/linux/i386/sbrk.S,
	sysdeps/unix/sysv/linux/i386/setfpucw.c,
	sysdeps/unix/sysv/linux/i386/signum.h,
	sysdeps/unix/sysv/linux/i386/socket.S,
	sysdeps/unix/sysv/linux/i386/stat.S,
	sysdeps/unix/sysv/linux/i386/syscall.S,
	sysdeps/unix/sysv/linux/i386/sysdep.S,
	sysdeps/unix/sysv/linux/i386/sysdep.h,
	sysdeps/unix/sysv/linux/i386/xmknod.S,
	sysdeps/unix/sysv/linux/i386/xstat.S:
	New Linux i386/ELF specific files.

	sysdeps/unix/sysv/linux/sys/ipc_buf.h,
	sysdeps/unix/sysv/linux/sys/mman.h,
	sysdeps/unix/sysv/linux/sys/msq_buf.h,
	sysdeps/unix/sysv/linux/sys/sem_buf.h,
	sysdeps/unix/sysv/linux/sys/shm_buf.h,
	sysdeps/unix/sysv/linux/sys/socketcall.h,
	sysdeps/unix/sysv/linux/sys/timex.h:
	New Linux/ELF specific, architecture independent header files.

110 files changed, 3399 insertions, 0 deletions

diff --git a/sysdeps/unix/sysv/linux/Implies b/sysdeps/unix/sysv/linux/Implies
new file mode 100644
index 0000000000..141aab485c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/Implies
@@ -0,0 +1,7 @@
+# Linux has not yet (as of 1.3.18) the canonical set of <sys/mman.h>
+# system calls.  msync() and madvice() are missing, so their stubs
+# are found here.  I think later version will have them ones.
+unix/mman
+
+# Linux has network support in the kernel.
+unix/inet
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
new file mode 100644
index 0000000000..702ad047a3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -0,0 +1,21 @@
+ifeq ($(subdir), io)
+sysdep_routines := $(sysdep_routines) fxstat lxstat xstat
+endif
+
+ifeq ($(subdir), misc)
+sysdep_routines := $(sysdep_routines) xmknod
+endif
+
+#ifeq ($(subdir), posix)
+#sysdep_routines := $(sysdep_routines) setpgrp
+#endif
+
+ifeq ($(subdir), time)
+sysdep_routines := $(sysdep_routines) adjtimex
+endif
+
+ifeq ($(subdir), sysvipc)
+sysdep_routines := $(sysdep_routines) ipc
+endif
+
+headers := $(headers) sys/socketcall.h sys/timex.h
diff --git a/sysdeps/unix/sysv/linux/Subdirs b/sysdeps/unix/sysv/linux/Subdirs
new file mode 100644
index 0000000000..ea1a9e9d3a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/Subdirs
@@ -0,0 +1 @@
+sysvipc
diff --git a/sysdeps/unix/sysv/linux/accept.S b/sysdeps/unix/sysv/linux/accept.S
new file mode 100644
index 0000000000..5936a0185b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/accept.S
@@ -0,0 +1,2 @@
+#define	socket	accept
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/adjtime.c b/sysdeps/unix/sysv/linux/adjtime.c
new file mode 100644
index 0000000000..3673cd9164
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/adjtime.c
@@ -0,0 +1,69 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <limits.h>
+#include <sys/time.h>
+#include <sys/timex.h>
+
+#define MAX_SEC	(LONG_MAX / 1000000L - 2)
+#define MIN_SEC	(LONG_MIN / 1000000L + 2)
+
+int
+__adjtime (itv, otv)
+     const struct timeval *itv;
+     struct timeval *otv;
+{
+  struct timex tntx;
+
+  if (itv)
+    {
+      struct timeval tmp;
+
+      /* We will do some check here. */
+      tmp.tv_sec = itv->tv_sec + itv->tv_usec / 1000000L;
+      tmp.tv_usec = itv->tv_usec % 1000000L;
+      if (tmp.tv_sec > MAX_SEC || tmp.tv_sec < MIN_SEC)
+	{
+	  errno = EINVAL;
+	  return -1;
+	}
+      tntx.offset = tmp.tv_usec + tmp.tv_sec * 1000000L;
+      tntx.mode = ADJ_OFFSET_SINGLESHOT;
+    }
+  else
+    tntx.mode = 0;
+
+  if (__adjtimex (&tntx) < 0) return -1;
+
+  if (otv)
+    {
+      if (tntx.offset < 0)
+	{
+	  otv->tv_usec = -(-tntx.offset % 1000000);
+	  otv->tv_sec  = -(-tntx.offset / 1000000);
+	}
+      else
+	{
+	  otv->tv_usec = tntx.offset % 1000000;
+	  otv->tv_sec  = tntx.offset / 1000000;
+	}
+    }
+  return 0;
+}
+
+weak_alias (__adjtime, adjtime)
diff --git a/sysdeps/unix/sysv/linux/adjtimex.S b/sysdeps/unix/sysv/linux/adjtimex.S
new file mode 100644
index 0000000000..de680acffb
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/adjtimex.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 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>
+
+SYSCALL__ (adjtimex, 1)
+	ret
diff --git a/sysdeps/unix/sysv/linux/bind.S b/sysdeps/unix/sysv/linux/bind.S
new file mode 100644
index 0000000000..fc82b65a2f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/bind.S
@@ -0,0 +1,2 @@
+#define	socket	bind
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/connect.S b/sysdeps/unix/sysv/linux/connect.S
new file mode 100644
index 0000000000..3433043d8c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/connect.S
@@ -0,0 +1,2 @@
+#define	socket	connect
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/direct.h b/sysdeps/unix/sysv/linux/direct.h
new file mode 100644
index 0000000000..ef88147d81
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/direct.h
@@ -0,0 +1,43 @@
+/* Copyright (C) 1992, 1993 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	   _BSDDIR_H
+#define	   _BSDDIR_H	1
+
+#include <limits.h>
+
+/* This is what system V calls a "struct dirent".  */
+
+struct direct
+  {
+    unsigned long int d_fileno;
+    long int d_off;
+    unsigned short int d_reclen;
+    char d_name[NAME_MAX + 1];
+  };
+
+#include <stddef.h>
+
+/* We calculate the length of the name by taking the length of the whole
+   `struct direct' record, subtracting the size of everything before the
+   name, and subtracting one for the terminating null.  */
+
+#define D_NAMLEN(d) \
+  ((d)->d_reclen - offsetof (struct direct, d_name) - 1)
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/dl-machine.h b/sysdeps/unix/sysv/linux/dl-machine.h
new file mode 100644
index 0000000000..2ed6c670e5
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/dl-machine.h
@@ -0,0 +1,214 @@
+/* Machine-dependent ELF dynamic relocation inline functions.
+   i386/Linux version.
+Copyright (C) 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.  */
+
+#define ELF_MACHINE_NAME "i386"
+
+#include <assert.h>
+#include <string.h>
+#include <link.h>
+#include <syscall.h>
+#include <sys/mman.h>
+
+/* Return nonzero iff E_MACHINE is compatible with the running host.  */
+static inline int
+elf_machine_matches_host (Elf32_Half e_machine)
+{
+  switch (e_machine)
+    {
+    case EM_386:
+    case EM_486:
+      return 1;
+    default:
+      return 0;
+    }
+}
+
+
+/* Return the run-time address of the _GLOBAL_OFFSET_TABLE_.
+   Must be inlined in a function which uses global data.  */
+static inline Elf32_Addr *
+elf_machine_got (void)
+{
+  register Elf32_Addr *got asm ("%ebx");
+  return got;
+}
+
+
+/* Return the run-time load address of the shared object.  */
+static inline Elf32_Addr
+elf_machine_load_address (void)
+{
+  Elf32_Addr addr;
+  asm ("	call here\n"
+       "here:	popl %0\n"
+       "	subl $here, %0"
+       : "=r" (addr));
+  return addr;
+}
+/* The `subl' insn above will contain an R_386_32 relocation entry
+   intended to insert the run-time address of the label `here'.
+   This will be the first relocation in the text of the dynamic linker;
+   we skip it to avoid trying to modify read-only text in this early stage.  */
+#define ELF_MACHINE_BEFORE_RTLD_RELOC(dynamic_info) \
+  ++(const Elf32_Rel *) (dynamic_info)[DT_REL]->d_un.d_ptr; \
+  (dynamic_info)[DT_RELSZ]->d_un.d_val -= sizeof (Elf32_Rel)
+
+/* Perform the relocation specified by RELOC and SYM (which is fully resolved).
+   MAP is the object containing the reloc.  */
+
+static inline void
+elf_machine_rel (struct link_map *map,
+		 const Elf32_Rel *reloc,
+		 Elf32_Addr sym_loadaddr, const Elf32_Sym *sym)
+{
+  Elf32_Addr *const reloc_addr = (void *) (map->l_addr + reloc->r_offset);
+  const Elf32_Addr sym_value = sym_loadaddr + sym->st_value;
+
+  switch (ELF32_R_TYPE (reloc->r_info))
+    {
+    case R_386_COPY:
+      memcpy (reloc_addr, (void *) sym_value, sym->st_size);
+      break;
+    case R_386_GLOB_DAT:
+    case R_386_JMP_SLOT:
+      *reloc_addr = sym_value;
+      break;
+    case R_386_32:
+      if (map->l_type == lt_interpreter)
+	{
+	  /* Undo the relocation done here during bootstrapping.  Now we will
+	     relocate it anew, possibly using a binding found in the user
+	     program or a loaded library rather than the dynamic linker's
+	     built-in definitions used while loading those libraries.  */
+	  const Elf32_Sym *const dlsymtab
+	    = (void *) (map->l_addr + map->l_info[DT_SYMTAB]->d_un.d_ptr);
+	  *reloc_addr -= (map->l_addr +
+			  dlsymtab[ELF32_R_SYM (reloc->r_info)].st_value);
+	}
+      *reloc_addr += sym_value;
+      break;
+    case R_386_RELATIVE:
+      if (map->l_type != lt_interpreter) /* Already done in dynamic linker.  */
+	*reloc_addr += map->l_addr;
+      break;
+    case R_386_PC32:
+      *reloc_addr = sym_value - (Elf32_Addr) reloc_addr;
+      break;
+    default:
+      assert (! "unexpected dynamic reloc type");
+      break;
+    }
+}
+
+static inline void
+elf_machine_lazy_rel (struct link_map *map, const Elf32_Rel *reloc)
+{
+  Elf32_Addr *const reloc_addr = (void *) (map->l_addr + reloc->r_offset);
+  switch (ELF32_R_TYPE (reloc->r_info))
+    {
+    case R_386_JMP_SLOT:
+      *reloc_addr += map->l_addr;
+      break;
+    default:
+      assert (! "unexpected PLT reloc type");
+      break;
+    }
+}
+
+/* The i386 never uses Elf32_Rela relocations.  */
+#define ELF_MACHINE_NO_RELA 1
+
+
+/* Set up the loaded object described by L so its unrelocated PLT
+   entries will jump to the on-demand fixup code in dl-runtime.c.  */
+
+static inline void
+elf_machine_runtime_setup (struct link_map *l)
+{
+  Elf32_Addr *got;
+  extern void _dl_runtime_resolve (Elf32_Word);
+
+  /* The GOT entries for functions in the PLT have not yet been filled
+     in.  Their initial contents will arrange when called to push an
+     offset into the .rel.plt section, push _GLOBAL_OFFSET_TABLE_[1],
+     and then jump to _GLOBAL_OFFSET_TABLE[2].  */
+  got = (Elf32_Addr *) (l->l_addr + l->l_info[DT_PLTGOT]->d_un.d_ptr);
+  got[1] = (Elf32_Addr) l;	/* Identify this shared object.  */
+  /* This function will get called to fix up the GOT entry indicated by
+     the offset on the stack, and then jump to the resolved address.  */
+  got[2] = (Elf32_Addr) &_dl_runtime_resolve;
+}
+
+
+/* Mask identifying addresses reserved for the user program,
+   where the dynamic linker should not map anything.  */
+#define ELF_MACHINE_USER_ADDRESS_MASK	0xf8000000UL
+
+
+
+/* Initial entry point code for the dynamic linker.
+   The C function `_dl_start' is the real entry point;
+   its return value is the user program's entry point.  */
+
+#define RTLD_START asm ("\
+.text\n\
+.globl _start\n\
+.globl _dl_start_user\n\
+_start:\n\
+	call _dl_start\n\
+_dl_start_user:\n\
+	# Save the user entry point address in %edi.\n\
+	movl %eax, %edi\n\
+	# Point %ebx at the GOT.
+	call 0f\n\
+0:	popl %ebx\n\
+	addl $_GLOBAL_OFFSET_TABLE_+[.-0b], %ebx\n\
+	# See if we were run as a command with the executable file\n\
+	# name as an extra leading argument.\n\
+	movl rtld_command@GOT(%ebx), %eax\n\
+	movl (%eax),%eax\n\
+	testl %eax,%eax\n\
+	jz 0f\n\
+	# Pop the original argument count, decrement it, and replace\n\
+	# the original first argument pointer with the new count.\n\
+	popl %eax\n\
+	decl %eax\n\
+	movl %eax,(%esp)\n\
+	# Call _dl_init_next to return the address of an initializer\n\
+	# function to run.\n\
+0:	call _dl_init_next@PLT\n\
+	# Check for zero return, when out of initializers.\n\
+	testl %eax,%eax\n\
+	jz 1f\n\
+	# Call the shared object initializer function.\n\
+	# NOTE: We depend only on the registers (%ebx and %edi)\n\
+	# and the return address pushed by this call;\n\
+	# the initializer is called with the stack just\n\
+	# as it appears on entry, and it is free to move\n\
+	# the stack around, as long as it winds up jumping to\n\
+	# the return address on the top of the stack.\n\
+	call *%eax\n\
+	# Loop to call _dl_init_next for the next initializer.\n\
+	jmp 0b\n\
+1:	# Pass our finalizer function to the user in %edx, as per ELF ABI.\n\
+	movl _dl_fini@GOT(%ebx), %edx\n\
+	# Jump to the user's entry point.\n\
+	jmp *%edi\n\
+");
diff --git a/sysdeps/unix/sysv/linux/errnos.h b/sysdeps/unix/sysv/linux/errnos.h
new file mode 100644
index 0000000000..be1e4d3feb
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/errnos.h
@@ -0,0 +1 @@
+#include <linux/errno.h>
diff --git a/sysdeps/unix/sysv/linux/fork.S b/sysdeps/unix/sysv/linux/fork.S
new file mode 100644
index 0000000000..a49a4bcebd
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/fork.S
@@ -0,0 +1,24 @@
+/* Copyright (C) 1991, 1992, 1994, 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>
+
+SYSCALL__ (fork, 0)
+	ret
+
+weak_alias (__fork, fork)
diff --git a/sysdeps/unix/sysv/linux/gethostid.c b/sysdeps/unix/sysv/linux/gethostid.c
new file mode 100644
index 0000000000..94f4a1ece7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/gethostid.c
@@ -0,0 +1,96 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#define HOSTIDFILE "/var/adm/hostid"
+
+#ifdef SET_PROCEDURE
+int
+sethostid (id)
+     long int id;
+{
+  int fd;
+  ssize_t written;
+
+  /* Test for appropriate rights to set host ID.  */
+  if (geteuid () || getuid ())
+    {
+      errno = EPERM;
+      return -1;
+    }
+
+  /* Open file for writing.  Everybody is allowed to read this file.  */
+  fd = __open (HOSTIDFILE, O_CREAT|O_WRONLY, 0644);
+  if (fd < 0)
+    return -1;
+
+  written = __write (fd, &id, sizeof (id));
+
+  __close (fd);
+
+  return written != sizeof (id) ? -1 : 0;
+}
+
+#else
+# include <sys/param.h>
+# include <resolv/netdb.h>
+# include <netinet/in.h>
+
+long int
+gethostid ()
+{
+  char hostname[MAXHOSTNAMELEN + 1];
+  struct hostent *hp;
+  unsigned long id;
+  struct in_addr in;
+  int fd;
+
+  /* First try to get the ID from a former invocation of sethostid.  */
+  fd = __open (HOSTIDFILE, O_RDONLY);
+  if (fd >= 0)
+    {
+      ssize_t n = __read (fd, &id, sizeof (id));
+
+      __close (fd);
+
+      if (n == sizeof (id))
+	return id;
+    }
+
+  /* Getting from the file was not succesful.  An intelligent guess for
+     a unique number of a host is its IP address.  Return this.  */
+  if (gethostname (hostname, MAXHOSTNAMELEN) < 0 || hostname[0] == '\0')
+    /* This also fails.  Return and arbitrary value.  */
+    return 0;
+
+  /* To get the IP address we need to knoe the host name.  */
+  hp = gethostbyname (hostname);
+  if (hp == NULL)
+    return 0;
+
+  in.s_addr = 0;
+  memcpy (&in, hp->h_addr,
+	  sizeof (in) < hp->h_length ? sizeof (in) : hp->h_length);
+
+  /* For the return value to be not exactly the IP address we do some
+     bit fiddling.  */
+  return in.s_addr << 16 | in.s_addr >> 16;
+}
+#endif
diff --git a/sysdeps/unix/sysv/linux/gethostname.c b/sysdeps/unix/sysv/linux/gethostname.c
new file mode 100644
index 0000000000..4b7720d414
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/gethostname.c
@@ -0,0 +1,53 @@
+/* Copyright (C) 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 <errno.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/utsname.h>
+
+/* Put the name of the current host in no more than LEN bytes of NAME.
+   The result is null-terminated if LEN is large enough for the full
+   name and the terminator.  */
+int
+__gethostname (name, len)
+     char *name;
+     size_t len;
+{
+  struct utsname buf;
+
+  if (name == NULL)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  if (uname (&buf))
+    return -1;
+
+  if (strlen (buf.nodename) + 1 > len)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  strcpy (name, buf.nodename);
+  return 0;
+}
+
+weak_alias (__gethostname, gethostname)
diff --git a/sysdeps/unix/sysv/linux/getpeername.S b/sysdeps/unix/sysv/linux/getpeername.S
new file mode 100644
index 0000000000..8429fcdf76
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/getpeername.S
@@ -0,0 +1,2 @@
+#define	socket	getpeername
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/getpgid.S b/sysdeps/unix/sysv/linux/getpgid.S
new file mode 100644
index 0000000000..3151296b3c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/getpgid.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 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>
+
+SYSCALL (getpgid, 1)
+	ret
diff --git a/sysdeps/unix/sysv/linux/getpgrp.S b/sysdeps/unix/sysv/linux/getpgrp.S
new file mode 100644
index 0000000000..75e8d342cc
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/getpgrp.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 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>
+
+SYSCALL (getpgrp, 0)
+	ret
diff --git a/sysdeps/unix/sysv/linux/getsockname.S b/sysdeps/unix/sysv/linux/getsockname.S
new file mode 100644
index 0000000000..6782707f88
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/getsockname.S
@@ -0,0 +1,2 @@
+#define	socket	getsockname
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/getsockopt.S b/sysdeps/unix/sysv/linux/getsockopt.S
new file mode 100644
index 0000000000..6ce92a6330
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/getsockopt.S
@@ -0,0 +1,2 @@
+#define	socket	getsockopt
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/gtty.S b/sysdeps/unix/sysv/linux/gtty.S
new file mode 100644
index 0000000000..1cff6b251c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/gtty.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 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>
+
+SYSCALL (gtty, 2)
+	ret
diff --git a/sysdeps/unix/sysv/linux/i386/Dist b/sysdeps/unix/sysv/linux/i386/Dist
new file mode 100644
index 0000000000..91365adfc4
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/Dist
@@ -0,0 +1 @@
+fxstat.S lxstat.S xmknod.S xstat.S
diff --git a/sysdeps/unix/sysv/linux/i386/Makefile b/sysdeps/unix/sysv/linux/i386/Makefile
new file mode 100644
index 0000000000..76d295e048
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/Makefile
@@ -0,0 +1,7 @@
+ifeq ($(subdir), misc)
+sysdep_routines := $(sysdep_routines) fpu_control setfpucw
+
+extra-libs := $(extra-libs) libieee
+libieee-routines := ieee_fpu
+libieee-inhibit-o := .so .po
+endif
diff --git a/sysdeps/unix/sysv/linux/i386/brk.S b/sysdeps/unix/sysv/linux/i386/brk.S
new file mode 100644
index 0000000000..ef2f55db97
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/brk.S
@@ -0,0 +1,60 @@
+/* Copyright (C) 1991, 1992, 1993, 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>
+
+.data
+.globl C_SYMBOL_NAME(__curbrk)
+C_LABEL(__curbrk)
+#ifdef PIC
+	.long 0
+#else
+# ifdef HAVE_GNU_LD
+	.long C_SYMBOL_NAME(_end)
+# else
+	.long C_SYMBOL_NAME(end)
+# endif
+#endif
+
+.text
+.globl C_SYMBOL_NAME(syscall_error)
+
+ENTRY (__brk)
+	movl %ebx, %edx
+	movl $SYS_ify(brk), %eax
+	movl 4(%esp), %ebx
+	int $0x80
+	movl %edx, %ebx
+
+	cmpl 4(%esp), %eax
+	jne JUMPTARGET(syscall_error)
+
+#ifdef PIC
+	/* Standard PIC nonsense to store into `__curbrk' through the GOT.  */
+	call here
+here:	popl %ecx
+	addl $_GLOBAL_OFFSET_TABLE_+[.-here], %ecx
+	movl C_SYMBOL_NAME(__curbrk@GOT)(%ecx), %ecx
+	movl %eax, (%ecx)
+#else
+	movl %eax, C_SYMBOL_NAME(__curbrk)
+#endif
+	xorl %eax, %eax
+	ret
+
+weak_alias (__brk, brk)
diff --git a/sysdeps/unix/sysv/linux/i386/fcntlbits.h b/sysdeps/unix/sysv/linux/i386/fcntlbits.h
new file mode 100644
index 0000000000..8d92ac02b0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/fcntlbits.h
@@ -0,0 +1,26 @@
+/* O_*, F_*, FD_* bit values for Linux.
+Copyright (C) 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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#ifndef	_FCNTLBITS_H
+#define	_FCNTLBITS_H	1
+
+#include <sys/types.h>
+#include <linux/fcntl.h>
+
+#endif	/* fcntlbits.h */
diff --git a/sysdeps/unix/sysv/linux/i386/fpu_control.c b/sysdeps/unix/sysv/linux/i386/fpu_control.c
new file mode 100644
index 0000000000..79933b90eb
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/fpu_control.c
@@ -0,0 +1,20 @@
+/* Default control word for ix86 FPU.
+Copyright (C) 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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+unsigned short ___fpu_control = 0;
diff --git a/sysdeps/unix/sysv/linux/i386/fpu_control.h b/sysdeps/unix/sysv/linux/i386/fpu_control.h
new file mode 100644
index 0000000000..28f3eeba7b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/fpu_control.h
@@ -0,0 +1,100 @@
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Olaf Flebbe.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#ifndef _FPU_CONTROL_H
+#define _FPU_CONTROL_H
+
+/* Here is the dirty part. Settup up your 387 through the control word
+ * (cw) register. 
+ *
+ *     15-13    12  11-10  9-8     7-6     5    4    3    2    1    0
+ * | reserved | IC | RC  | PC | reserved | PM | UM | OM | ZM | DM | IM
+ *
+ * IM: Invalid operation mask
+ * DM: Denormalized operand mask
+ * ZM: Zero-divide mask
+ * OM: Overflow mask
+ * UM: Underflow mask
+ * PM: Precision (inexact result) mask
+ * 
+ * Mask bit is 1 means no interrupt.
+ *
+ * PC: Precision control
+ * 11 - round to extended precision
+ * 10 - round to double precision
+ * 00 - round to single precision
+ *
+ * RC: Rounding control
+ * 00 - rounding to nearest
+ * 01 - rounding down (toward - infinity)
+ * 10 - rounding up (toward + infinity)
+ * 11 - rounding toward zero
+ *
+ * IC: Infinity control
+ * That is for 8087 and 80287 only.
+ *
+ * The hardware default is 0x037f. I choose 0x1372.
+ */
+
+#include <features.h>
+
+/* masking of interrupts */
+#define _FPU_MASK_IM  0x01  
+#define _FPU_MASK_DM  0x02
+#define _FPU_MASK_ZM  0x04
+#define _FPU_MASK_OM  0x08
+#define _FPU_MASK_UM  0x10
+#define _FPU_MASK_PM  0x20
+
+/* precision control */
+#define _FPU_EXTENDED 0x300   /* RECOMMENDED */
+#define _FPU_DOUBLE   0x200
+#define _FPU_SINGLE   0x0     /* DO NOT USE */
+
+/* rounding control */
+#define _FPU_RC_NEAREST 0x0    /* RECOMMENDED */
+#define _FPU_RC_DOWN    0x400
+#define _FPU_RC_UP      0x800
+#define _FPU_RC_ZERO    0xC00
+
+#define _FPU_RESERVED 0xF0C0  /* Reserved bits in cw */
+
+
+/* Now two recommended cw */
+
+/* Linux default:
+     - extended precision
+     - rounding to nearest
+     - exceptions on overflow, zero divide and NaN */
+#define _FPU_DEFAULT  0x1372 
+
+/* IEEE:  same as above, but exceptions */
+#define _FPU_IEEE     0x137f
+
+/* private namespace. It should only be used in init-first.o. */
+extern unsigned short __fpu_control;
+
+__BEGIN_DECLS
+
+/* called in init-first.o. It can be used to manipulate 387 control word. */
+extern void __setfpucw __P ((unsigned short));
+
+__END_DECLS
+
+#endif	/* fpu_control.h */
diff --git a/sysdeps/unix/sysv/linux/i386/fstat.S b/sysdeps/unix/sysv/linux/i386/fstat.S
new file mode 100644
index 0000000000..434ad4ad64
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/fstat.S
@@ -0,0 +1,4 @@
+#define __stat __fstat
+#define stat fstat
+#define __xstat __fxstat
+#include "stat.S"
diff --git a/sysdeps/unix/sysv/linux/i386/fxstat.S b/sysdeps/unix/sysv/linux/i386/fxstat.S
new file mode 100644
index 0000000000..c4db088abe
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/fxstat.S
@@ -0,0 +1,4 @@
+#define __xstat __fxstat
+#define _xstat _fxstat
+#define stat fstat
+#include "xstat.S"
diff --git a/sysdeps/unix/sysv/linux/i386/ieee_fpu.c b/sysdeps/unix/sysv/linux/i386/ieee_fpu.c
new file mode 100644
index 0000000000..4a0bf31e7c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/ieee_fpu.c
@@ -0,0 +1,22 @@
+/* Default control word for ix86 FPU.
+Copyright (C) 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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <fpu_control.h>
+
+unsigned short ___fpu_control = _FPU_IEEE;
diff --git a/sysdeps/unix/sysv/linux/i386/init-first.S b/sysdeps/unix/sysv/linux/i386/init-first.S
new file mode 100644
index 0000000000..3c0c185fb7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/init-first.S
@@ -0,0 +1,84 @@
+/* Initialization code run first thing by the ELF startup code.
+   For i386/Linux.
+Copyright (C) 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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <sysdep.h>
+
+	.text
+
+	/* Called from start.S.  Not: there is no value in %ebx.  */
+
+ENTRY (__libc_init_first)
+
+	/* Make sure we are not using iBSC2 personality.  */
+	movl $SYS_ify (personality), %eax
+	xorl %ebx, %ebx
+	int $0x80
+
+#ifdef PIC
+	/* Set control work of FPU.  */
+	call .L0
+.L0:	popl %ebx
+	addl $_GLOBAL_OFFSET_TABLE_+[.-.L0], %ebx
+	movzwl C_SYMBOL_NAME(___fpu_control@GOT)(%ebx), %eax
+#else
+	movzwl ___fpu_control, %eax
+#endif
+	pushl %eax
+	call JUMPTARGET(__setfpucw)
+	addl $4, %esp
+
+	/* That is all for now.  */
+	ret
+
+
+	/* This is only a dummy function for the list below.  */
+	.type _dummy_exit, @function
+C_LABEL(_dummy_exit)
+	ret
+
+
+	.section .init,"ax",@progbits
+	movl 16(%ebp), %edx	/* envp */
+	movl 12(%ebp), %ecx	/* argv */
+	movl 8(%ebp), %eax	/* argc */
+	pushl %edx
+	pushl %ecx
+	pushl %eax
+
+	call JUMPTARGET(__libc_init)
+
+	addl $12, %esp
+
+
+	/* Make sure __libc_subinit section is always present.  */
+	.section __libc_subinit, "a", @progbits
+	.align 4
+	.type __elf_set___libc_subinit_element__dummy_exit__, @object
+	.size __elf_set___libc_subinit_element__dummy_exit__, 4
+__elf_set___libc_subinit_element__dummy_exit__:
+	.long _dummy_exit
+
+	/* Make sure __libc_atexit section is always present.  */
+	.section __libc_atexit, "a", @progbits
+	.align 4
+	.type __elf_set___libc_atexit_element__dummy_exit__, @object
+	.size __elf_set___libc_atexit_element__dummy_exit__, 4
+__elf_set___libc_atexit_element__dummy_exit__:
+	.long _dummy_exit
diff --git a/sysdeps/unix/sysv/linux/i386/ipc.S b/sysdeps/unix/sysv/linux/i386/ipc.S
new file mode 100644
index 0000000000..bb523a20dc
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/ipc.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 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>
+
+SYSCALL__ (ipc, 5)
+	ret
diff --git a/sysdeps/unix/sysv/linux/i386/lstat.S b/sysdeps/unix/sysv/linux/i386/lstat.S
new file mode 100644
index 0000000000..9135c6bfe1
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/lstat.S
@@ -0,0 +1,4 @@
+#define __stat __lstat
+#define stat lstat
+#define __xstat __lxstat
+#include "stat.S"
diff --git a/sysdeps/unix/sysv/linux/i386/lxstat.S b/sysdeps/unix/sysv/linux/i386/lxstat.S
new file mode 100644
index 0000000000..fee635be78
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/lxstat.S
@@ -0,0 +1,4 @@
+#define __xstat __lxstat
+#define _xstat _lxstat
+#define stat lstat
+#include "xstat.S"
diff --git a/sysdeps/unix/sysv/linux/i386/mknod.S b/sysdeps/unix/sysv/linux/i386/mknod.S
new file mode 100644
index 0000000000..7faf89d74b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/mknod.S
@@ -0,0 +1,39 @@
+/* Copyright (C) 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>
+
+/* In Linux the `mknod' call is actually done by a emulation of the
+   `xmknod' system call, which takes an additional first argument
+   giving a version number for the interface.  This macro gives the
+   Linux version number that corresponds to the modern interface.  */
+#define _MKNOD_VER      1
+
+ENTRY (__mknod)
+	movl 12(%esp), %edx
+	movl 8(%esp), %ecx
+	movl 4(%esp), %eax
+	pushl %edx
+	pushl %ecx
+	pushl %eax
+        pushl $_MKNOD_VER       /* Push extra first arg to syscall.  */
+	call JUMPTARGET(__xmknod)
+	addl $16, %esp		/* Correct version parameter offset.  */
+	ret
+
+weak_alias (__mknod, mknod)
diff --git a/sysdeps/unix/sysv/linux/i386/mmap.S b/sysdeps/unix/sysv/linux/i386/mmap.S
new file mode 100644
index 0000000000..96ea870846
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/mmap.S
@@ -0,0 +1,45 @@
+/* Copyright (C) 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>
+
+.globl syscall_error
+
+ENTRY (__mmap)
+
+	/* Save registers.  */
+	movl %ebx, %edx
+
+	movl $SYS_ify(mmap), %eax	/* System call number in %eax.  */
+
+	lea 4(%esp), %ebx		/* Address of args is 1st arg.  */
+
+        /* Do the system call trap.  */
+	int $0x80
+
+	/* Restore registers.  */
+	movl %edx, %ebx
+
+	/* %eax is < 0 if there was an error.  */
+	testl %eax, %eax
+	jl JUMPTARGET(syscall_error)
+
+	/* Successful; return the syscall's value.  */
+	ret
+
+weak_alias (__mmap, mmap)
diff --git a/sysdeps/unix/sysv/linux/i386/sbrk.S b/sysdeps/unix/sysv/linux/i386/sbrk.S
new file mode 100644
index 0000000000..7a0e940cfe
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/sbrk.S
@@ -0,0 +1,82 @@
+/* Copyright (C) 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>
+
+.data
+.globl C_SYMBOL_NAME(__curbrk)
+
+.text
+.globl C_SYMBOL_NAME(syscall_error)
+
+ENTRY (__sbrk)
+
+	movl %ebx, %edx
+
+#ifdef PIC
+	/* Standard PIC nonsense to access `__curbrk' through the GOT.  */
+	call .L0
+.L0:	popl %ecx
+	addl $_GLOBAL_OFFSET_TABLE_+[.-.L0], %ecx
+
+	movl C_SYMBOL_NAME(__curbrk@GOT)(%ecx), %ecx
+	movl (%ecx), %ebx
+	movl %ebx, %eax
+	testl %ebx, %ebx
+	jne .L1
+
+	/* We have to initialize `__curbrk' first.  */
+	movl $SYS_ify(brk), %eax
+	int $0x80
+
+	movl %eax, (%ecx)
+	movl %eax, %ebx
+	.align 16, 0x90
+
+.L1:
+#else
+	movl C_SYMBOL_NAME(__curbrk), %ebx
+	movl %ebx, %eax
+#endif
+	
+	addl 4(%esp), %ebx
+	cmpl %ebx, %eax
+	je .L2
+
+	movl $SYS_ify(brk), %eax
+	int $0x80
+
+	cmpl %eax, %ebx
+	jne .L3
+
+#ifdef PIC
+	xchgl %eax, (%ecx)
+#else
+	xchgl %eax, C_SYMBOL_NAME(__curbrk)
+#endif
+
+.L2:
+	movl %edx, %ebx
+	ret
+
+	.align 16
+.L3:
+	movl %edx, %ebx
+	jmp JUMPTARGET(syscall_error)
+
+weak_alias (__sbrk, sbrk)
diff --git a/sysdeps/unix/sysv/linux/i386/setfpucw.c b/sysdeps/unix/sysv/linux/i386/setfpucw.c
new file mode 100644
index 0000000000..329573df6a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/setfpucw.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 1993 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Olaf Flebbe.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <fpu_control.h>
+
+void
+__setfpucw (fpu_control)
+     unsigned short fpu_control;
+{
+  volatile unsigned short cw;
+
+  /* If user supplied _fpu_control, use it ! */
+  if (!fpu_control)
+  { 
+    /* use linux defaults */
+    fpu_control = _FPU_DEFAULT;
+  }
+  /* Get Control Word */
+  __asm__ volatile ("fnstcw %0" : "=m" (cw) : );
+  
+  /* mask in */
+  cw &= _FPU_RESERVED;
+  cw = cw | (fpu_control & ~_FPU_RESERVED);
+
+  /* set cw */
+  __asm__ volatile ("fldcw %0" :: "m" (cw));
+}
diff --git a/sysdeps/unix/sysv/linux/i386/signum.h b/sysdeps/unix/sysv/linux/i386/signum.h
new file mode 100644
index 0000000000..8e4f270204
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/signum.h
@@ -0,0 +1,66 @@
+/* Signal number definitions.  Linux version.
+Copyright (C) 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.  */
+
+#ifdef	_SIGNAL_H
+
+/* Fake signal functions.  */
+#define	SIG_ERR	((__sighandler_t) -1) /* Error return.  */
+#define	SIG_DFL	((__sighandler_t) 0) /* Default action.  */
+#define	SIG_IGN	((__sighandler_t) 1) /* Ignore signal.  */
+
+
+/* Signals.  */
+#define	SIGHUP		1	/* Hangup (POSIX).  */
+#define	SIGINT		2	/* Interrupt (ANSI).  */
+#define	SIGQUIT		3	/* Quit (POSIX).  */
+#define	SIGILL		4	/* Illegal instruction (ANSI).  */
+#define	SIGTRAP		5	/* Trace trap (POSIX).  */
+#define	SIGABRT		SIGIOT	/* Abort (ANSI).  */
+#define	SIGIOT		6	/* IOT trap (4.2 BSD).  */
+#define	SIGBUS		7	/* BUS error (4.2 BSD).  */
+#define	SIGFPE		8	/* Floating-point exception (ANSI).  */
+#define	SIGKILL		9	/* Kill, unblockable (POSIX).  */
+#define	SIGUSR1		10	/* User-defined signal 1 (POSIX).  */
+#define	SIGSEGV		11	/* Segmentation violation (ANSI).  */
+#define	SIGUSR2		12	/* User-defined signal 2 (POSIX).  */
+#define	SIGPIPE		13	/* Broken pipe (POSIX).  */
+#define	SIGALRM		14	/* Alarm clock (POSIX).  */
+#define	SIGTERM		15	/* Termination (ANSI).  */
+#define	SIGSTKFLT	16	/* ??? */
+#define	SIGCLD		SIGCHLD	/* Same as SIGCHLD (System V).  */
+#define	SIGCHLD		17	/* Child status has changed (POSIX).  */
+#define	SIGCONT		18	/* Continue (POSIX).  */
+#define	SIGSTOP		19	/* Stop, unblockable (POSIX).  */
+#define	SIGTSTP		20	/* Keyboard stop (POSIX).  */
+#define	SIGTTIN		21	/* Background read from tty (POSIX).  */
+#define	SIGTTOU		22	/* Background write to tty (POSIX).  */
+#define	SIGURG		23	/* Urgent condition on socket (4.2 BSD).  */
+#define	SIGXCPU		24	/* CPU limit exceeded (4.2 BSD).  */
+#define	SIGXFSZ		25	/* File size limit exceeded (4.2 BSD).  */
+#define	SIGVTALRM	26	/* Virtual alarm clock (4.2 BSD).  */
+#define	SIGPROF		27	/* Profiling alarm clock (4.2 BSD).  */
+#define	SIGWINCH	28	/* Window size change (4.3 BSD, Sun).  */
+#define	SIGPOLL		SIGIO	/* Pollable event occured (System V).  */
+#define	SIGIO		29	/* I/O now possible (4.2 BSD).  */
+#define	SIGPWR		30	/* Power failure restart (System V).  */
+#define SIGUNUSED	31
+
+#endif	/* <signal.h> included.  */
+
+#define	_NSIG		32	/* Biggest signal number + 1.  */
diff --git a/sysdeps/unix/sysv/linux/i386/socket.S b/sysdeps/unix/sysv/linux/i386/socket.S
new file mode 100644
index 0000000000..3d3a67213b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/socket.S
@@ -0,0 +1,60 @@
+/* Copyright (C) 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>
+#include <sys/socketcall.h>
+
+#define P(a, b) P2(a, b)
+#define P2(a, b) a##b
+
+.globl syscall_error
+
+/* The socket-oriented system calls are handled unusally in Linux.
+   They are all gated through the single `socketcall' system call number.
+   `socketcall' takes two arguments: the first is the subcode, specifying
+   which socket function is being called; and the second is a pointer to
+   the arguments to the specific function.
+
+   The .S files for the other calls just #define socket and #include this.  */
+
+.globl P(__,socket)
+ENTRY (P(__,socket))
+
+	/* Save registers.  */
+	movl %ebx, %edx
+
+	movl $SYS_ify(socketcall), %eax	/* System call number in %eax.  */
+
+	/* Use ## so `socket' is a separate token that might be #define'd.  */
+	movl $P(SOCKOP_,socket), %ebx	/* Subcode is first arg to syscall.  */
+	lea 8(%esp), %ecx		/* Address of args is 2nd arg.  */
+
+        /* Do the system call trap.  */
+	int $0x80
+
+	/* Restore registers.  */
+	movl %edx, %ebx
+
+	/* %eax is < 0 if there was an error.  */
+	testl %eax, %eax
+	jl JUMPTARGET(syscall_error)
+
+	/* Successful; return the syscall's value.  */
+	ret
+
+weak_alias (P(__,socket), socket)
diff --git a/sysdeps/unix/sysv/linux/i386/stat.S b/sysdeps/unix/sysv/linux/i386/stat.S
new file mode 100644
index 0000000000..73204bf254
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/stat.S
@@ -0,0 +1,38 @@
+/* Copyright (C) 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>
+
+/* In Linux the `stat' call is actually done by emulating a `xstat' system
+   call, which takes an additional first argument giving a version number
+   for `struct stat'.  Likewise for `fstat' and `lstat' there are `fxstat'
+   and `lxstat' emulations.  This macro gives the Linux version number that
+   corresponds to the definition of `struct stat' in <statbuf.h>.  */
+#define	_STAT_VER	1
+
+ENTRY (__stat)
+	movl 8(%esp), %eax
+	movl 4(%esp), %ecx
+	pushl %eax
+	pushl %ecx
+	pushl $_STAT_VER	/* Push extra first arg to syscall.  */
+	call JUMPTARGET(__xstat)/* Jump to xstat implementation.  */
+	addl $12, %esp
+	ret
+
+weak_alias (__stat, stat)
diff --git a/sysdeps/unix/sysv/linux/i386/syscall.S b/sysdeps/unix/sysv/linux/i386/syscall.S
new file mode 100644
index 0000000000..6e6aa5d3c8
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/syscall.S
@@ -0,0 +1,31 @@
+/* Copyright (C) 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>
+
+.globl syscall_error
+ENTRY (syscall)
+	popl %ecx		/* Pop return address into %ecx.  */
+	popl %eax		/* Pop syscall number into %eax.  */
+	pushl %ecx		/* Push back return address.  */
+	DO_CALL (5)		/* Frob the args and do the system call.  */
+	movl (%esp), %ecx
+	pushl %ecx
+	testl %eax, %eax	/* Check %eax for error.  */
+	jl JUMPTARGET(syscall_error) /* Jump to error handler if negative.  */
+	ret			/* Return to caller.  */
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.S b/sysdeps/unix/sysv/linux/i386/sysdep.S
new file mode 100644
index 0000000000..b873c958bb
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/sysdep.S
@@ -0,0 +1,40 @@
+/* Copyright (C) 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.  */
+
+/* The syscall stubs jump here when they detect an error.
+   The code for Linux is almost identical to the canonical Unix/i386
+   code, except that the error number in %eax is negated.  */
+
+.globl __syscall_error
+__syscall_error:
+	negl %eax
+
+#define __syscall_error __syscall_error_1
+#include <sysdeps/unix/i386/sysdep.S>
+
+/* Because the Linux version is in fact i386/ELF and the start.? file
+   for this system (sysdeps/i386/elf/start.S) is also used by The Hurd
+   and therefore this files must not contain the definition of the
+   `errno' variable (I don't know why, ask Roland), we have to define
+   it somewhere else.
+
+   ...and this please is here.  */
+	.data
+	.globl errno
+errno:
+	.long 0
diff --git a/sysdeps/unix/sysv/linux/i386/sysdep.h b/sysdeps/unix/sysv/linux/i386/sysdep.h
new file mode 100644
index 0000000000..7fe4d414e3
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/sysdep.h
@@ -0,0 +1,135 @@
+/* Copyright (C) 1992, 1993, 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>, August 1995.
+
+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.  */
+
+/* In the Linux/ELF world, C symbols are asm symbols.  */
+#define NO_UNDERSCORES
+
+/* There is some commonality.  */
+#include <sysdeps/unix/i386/sysdep.h>
+
+/* For Linux we can use the system call table in the header file
+	/usr/include/asm/unistd.h
+   of the kernel.  But these symbols do not follow the SYS_* syntax
+   so we have to redefine the `SYS_ify' macro here.  */
+#undef SYS_ify
+#ifdef __STDC__
+# define SYS_ify(syscall_name)	__NR_##syscall_name
+#else
+# define SYS_ify(syscall_name)	__NR_/**/syscall_name
+#endif
+
+
+#ifdef ASSEMBLER
+
+/* Linux uses a negative return value to indicate syscall errors, unlike
+   most Unices, which use the condition codes' carry flag.  */
+#undef	PSEUDO
+#define	PSEUDO(name, syscall_name, args)				      \
+  .text;								      \
+  .globl syscall_error;							      \
+  ENTRY (name)								      \
+    movl $SYS_ify (syscall_name), %eax;					      \
+    DO_CALL (args);							      \
+    testl %eax, %eax;							      \
+    jl JUMPTARGET (syscall_error)
+
+/* We define our own ENTRY macro because the alignment should be 16 for ELF.  */
+#undef ENTRY
+#define ENTRY(name)							      \
+  ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME (name);				      \
+  ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME (name), @function)			      \
+  .align 16;								      \
+  C_LABEL (name)
+
+/* Linux takes system call arguments in registers:
+
+	syscall number	%eax	     call-clobbered
+	arg 1		%ebx	     call-saved
+	arg 2		%ecx	     call-clobbered
+	arg 3		%edx	     call-clobbered
+	arg 4		%esi	     call-saved
+	arg 5		%edi	     call-saved
+
+   The stack layout upon entering the function is:
+
+	20(%esp)	Arg# 5
+	16(%esp)	Arg# 4
+	12(%esp)	Arg# 3
+	 8(%esp)	Arg# 2
+	 4(%esp)	Arg# 1
+	  (%esp)	Return address
+
+   (Of course a function with say 3 arguments does not have entries for
+   arguments 4 and 5.)
+
+   The following code tries hard to be optimal.  A general assuption
+   (which is true accoriding to the data books I have) is that
+
+	2 * xchg	is more expensive than	pushl + movl + popl
+
+   Beside this a neat trick is used.  The calling conventions for Linux
+   tell that among the registers used for parameters %ecx and %edx need
+   not be saved.  Beside this we may clobber this registers even when
+   they are not used for parameter passing.
+
+   As a result one can see below that we save the content of the %ebx
+   register in the %edx register when we have less than 3 arguments
+   (2 * movl is less expensive than pushl + popl).
+
+   Second unlike for the other registers we don't save the content of
+   %ecx and %edx when we have than 1 and 2 registers resp.  */
+
+#undef	DO_CALL
+#define DO_CALL(args)					      		      \
+    DOARGS_##args							      \
+    int $0x80;								      \
+    UNDOARGS_##args
+
+#define	DOARGS_0	/* No arguments to frob.  */
+#define	UNDOARGS_0	/* No arguments to unfrob.  */
+#define	_DOARGS_0(n)	/* No arguments to frob.  */
+#define	_UNDOARGS_0	/* No arguments to unfrob.  */
+
+#define	DOARGS_1	movl %ebx, %edx; movl 4(%esp), %ebx; DOARGS_0
+#define	UNDOARGS_1	UNDOARGS_0; movl %edx, %ebx
+#define	_DOARGS_1(n)	pushl %ebx; movl n+4(%esp), %ebx; _DOARGS_0 (n)
+#define	_UNDOARGS_1	_UNDOARGS_0; popl %ebx
+
+#define	DOARGS_2	movl 8(%esp), %ecx; DOARGS_1
+#define	UNDOARGS_2	UNDOARGS_1
+#define	_DOARGS_2(n)	movl n(%esp), %ecx; _DOARGS_1 (n-4)
+#define	_UNDOARGS_2	_UNDOARGS_1
+
+#define DOARGS_3	_DOARGS_3 (12)
+#define UNDOARGS_3	_UNDOARGS_3
+#define _DOARGS_3(n)	movl n(%esp), %edx; _DOARGS_2 (n-4)
+#define _UNDOARGS_3	_UNDOARGS_2
+
+#define DOARGS_4	_DOARGS_4 (16)
+#define UNDOARGS_4	_UNDOARGS_4
+#define _DOARGS_4(n)	pushl %esi; movl n+4(%esp), %esi; _DOARGS_3 (n)
+#define _UNDOARGS_4	_UNDOARGS_3; popl %esi
+
+#define DOARGS_5	_DOARGS_5 (20)
+#define UNDOARGS_5	_UNDOARGS_5
+#define _DOARGS_5(n)	pushl %edi; movl n+4(%esp), %edi; _DOARGS_4 (n)
+#define _UNDOARGS_5	_UNDOARGS_4; popl %edi
+
+
+#endif	/* ASSEMBLER */
diff --git a/sysdeps/unix/sysv/linux/i386/xmknod.S b/sysdeps/unix/sysv/linux/i386/xmknod.S
new file mode 100644
index 0000000000..fde3165d01
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/xmknod.S
@@ -0,0 +1,49 @@
+/* Copyright (C) 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>
+#include <errnos.h>
+
+.globl syscall_error
+ENTRY (__xmknod)
+	popl %ecx		/* Pop return address into %eax.  */
+	popl %edx		/* Pop version number into %edx.  */
+	pushl %ecx		/* Push back the return address.  */
+
+	movl $SYS_ify(mknod), %eax
+			/* Load syscall number for prev_stat in %eax.  */
+	cmpl $1, %edx		/* Version 1 xstat call?  */
+	je .L1			/* Yes, do syscall.  */
+
+	movl $-EINVAL, %eax	/* Load error code into %eax.  */
+	jmp .L2
+
+.L1:	DO_CALL (3)		/* Do the syscall.   */
+
+	movl (%esp), %ecx
+	testl %eax, %eax	/* Check for error.  */
+	jl .L2
+
+	jmp *%ecx		/* Return success.  */
+
+.L2:	pushl %ecx
+	jmp JUMPTARGET(syscall_error)
+				/* Yes, then branch to error handling.  */
+
+/* For compatibility with Linux libc.  */
+weak_alias (__xmknod, _xmknod)
diff --git a/sysdeps/unix/sysv/linux/i386/xstat.S b/sysdeps/unix/sysv/linux/i386/xstat.S
new file mode 100644
index 0000000000..34822beda6
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/i386/xstat.S
@@ -0,0 +1,51 @@
+/* Copyright (C) 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>
+#include <errnos.h>
+
+#define SYS_expand(name) SYS_ify(name)
+
+.globl syscall_error
+ENTRY (__xstat)
+	popl %ecx		/* Pop return address into %eax.  */
+	popl %edx		/* Pop version number into %edx.  */
+	pushl %ecx		/* Push back the return address.  */
+
+	movl $SYS_expand(stat), %eax
+			/* Load syscall number for prev_stat in %eax.  */
+	cmpl $1, %edx		/* Version 1 xstat call?  */
+	je .L1			/* Yes, do syscall.  */
+
+	movl $-EINVAL, %eax	/* Load error code into %eax.  */
+	jmp .L2
+
+.L1:	DO_CALL (2)		/* Do the syscall.   */
+
+	movl (%esp), %ecx
+	testl %eax, %eax	/* Check for error.  */
+	jl .L2
+
+	jmp *%ecx		/* Return success.  */
+
+.L2:	pushl %ecx
+	jmp JUMPTARGET(syscall_error)
+				/* Yes, then branch to error handling.  */
+
+/* For compatibility with Linux libc.  */
+weak_alias (__xstat, _xstat)
diff --git a/sysdeps/unix/sysv/linux/listen.S b/sysdeps/unix/sysv/linux/listen.S
new file mode 100644
index 0000000000..d2cbec60a0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/listen.S
@@ -0,0 +1,2 @@
+#define	socket	listen
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/local_lim.h b/sysdeps/unix/sysv/linux/local_lim.h
new file mode 100644
index 0000000000..bfc65bd6fd
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/local_lim.h
@@ -0,0 +1,31 @@
+/* Minimum guaranteed maximum values for system limits.  Hurd version.
+
+Copyright (C) 1993, 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.  */
+
+/* Linux has a fixed limit of supplementary groups allocated with a
+   process.  This value is determined by the size of the `groups'
+   member of the `task_struct' structure in <linux/sched.h>.  */
+   
+#define NGROUPS_MAX	32
+
+
+/* Maximum size of file names.  Not all file system types support
+   this size but it is only a maximum value.  */
+
+#define NAME_MAX	255
diff --git a/sysdeps/unix/sysv/linux/madvise.c b/sysdeps/unix/sysv/linux/madvise.c
new file mode 100644
index 0000000000..72b7d76543
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/madvise.c
@@ -0,0 +1 @@
+#include <sysdeps/stub/madvise.c>
diff --git a/sysdeps/unix/sysv/linux/msgctl.c b/sysdeps/unix/sysv/linux/msgctl.c
new file mode 100644
index 0000000000..cd64d15cbe
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/msgctl.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <sys/msg.h>
+
+/* Allows to control internal state and destruction of message queue
+   objects.  */
+
+int
+msgctl (msqid, cmd, buf)
+     int msqid;
+     int cmd;
+     struct msqid_ds *buf;
+{
+  return __ipc (IPCOP_msgctl, msqid, cmd, 0, buf);
+}
diff --git a/sysdeps/unix/sysv/linux/msgget.c b/sysdeps/unix/sysv/linux/msgget.c
new file mode 100644
index 0000000000..b1c29d6780
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/msgget.c
@@ -0,0 +1,32 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <sys/msg.h>
+#include <stdlib.h>		/* for definition of NULL */
+
+/* Return descriptor for message queue associated with KEY.  The MSGFLG
+   parameter describes how to proceed with clashing of key values.  */
+
+int
+msgget (key, msgflg)
+     key_t key;
+     int msgflg;
+{
+  return __ipc (IPCOP_msgget, key, msgflg, 0, NULL);
+}
diff --git a/sysdeps/unix/sysv/linux/msgrcv.c b/sysdeps/unix/sysv/linux/msgrcv.c
new file mode 100644
index 0000000000..21c6b75cac
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/msgrcv.c
@@ -0,0 +1,38 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <sys/msg.h>
+
+int
+msgrcv (msqid, msgp, msgsz, msgtyp, msgflg)
+     int msqid;
+     void *msgp;
+     size_t msgsz;
+     long msgtyp;
+     int msgflg;
+{
+  /* The problem here is that Linux' calling convention only allows up to
+     fives parameters to a system call.  */
+  struct ipc_kludge tmp;
+
+  tmp.msgp = msgp;
+  tmp.msgtyp = msgtyp;
+
+  return __ipc (IPCOP_msgrcv, msqid, msgsz, msgflg, &tmp);
+}
diff --git a/sysdeps/unix/sysv/linux/msgsnd.c b/sysdeps/unix/sysv/linux/msgsnd.c
new file mode 100644
index 0000000000..6d2d3ef26b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/msgsnd.c
@@ -0,0 +1,30 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <sys/msg.h>
+
+int
+msgsnd (msqid, msgp, msgsz, msgflg)
+     int msqid;
+     void *msgp;
+     size_t msgsz;
+     int msgflg;
+{
+  return __ipc (IPCOP_msgsnd, msqid, msgsz, msgflg, msgp);
+}
diff --git a/sysdeps/unix/sysv/linux/pipe.S b/sysdeps/unix/sysv/linux/pipe.S
new file mode 100644
index 0000000000..cd050b36e8
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/pipe.S
@@ -0,0 +1,24 @@
+/* Copyright (C) 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>
+
+SYSCALL__ (pipe, 1)
+	ret
+
+weak_alias (__pipe, pipe)
diff --git a/sysdeps/unix/sysv/linux/poll.c b/sysdeps/unix/sysv/linux/poll.c
new file mode 100644
index 0000000000..ff43a76a63
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/poll.c
@@ -0,0 +1 @@
+#include <sysdeps/stub/poll.c>
diff --git a/sysdeps/unix/sysv/linux/readv.c b/sysdeps/unix/sysv/linux/readv.c
new file mode 100644
index 0000000000..baa976da6d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/readv.c
@@ -0,0 +1 @@
+#include <sysdeps/posix/readv.c>
diff --git a/sysdeps/unix/sysv/linux/recv.S b/sysdeps/unix/sysv/linux/recv.S
new file mode 100644
index 0000000000..f1081cc431
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/recv.S
@@ -0,0 +1,2 @@
+#define	socket	recv
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/recvfrom.S b/sysdeps/unix/sysv/linux/recvfrom.S
new file mode 100644
index 0000000000..febaa9ef55
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/recvfrom.S
@@ -0,0 +1,2 @@
+#define	socket	recvfrom
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/recvmsg.S b/sysdeps/unix/sysv/linux/recvmsg.S
new file mode 100644
index 0000000000..ffadd30195
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/recvmsg.S
@@ -0,0 +1,2 @@
+#define	socket	recvmsg
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/semctl.c b/sysdeps/unix/sysv/linux/semctl.c
new file mode 100644
index 0000000000..dd0e7b9484
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/semctl.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <sys/sem.h>
+
+/* Return identifier for array of NSEMS semaphores associated with
+   KEY.  */
+
+int
+semctl (semid, semnum, cmd, arg)
+     int semid;
+     int semnum;
+     int cmd;
+     union semun arg;
+{
+  return __ipc (IPCOP_semctl, semid, semnum, cmd, &arg);
+}
diff --git a/sysdeps/unix/sysv/linux/semget.c b/sysdeps/unix/sysv/linux/semget.c
new file mode 100644
index 0000000000..6320e4720e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/semget.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <sys/sem.h>
+#include <stdlib.h>		/* for definition of NULL */
+
+/* Return identifier for array of NSEMS semaphores associated with
+   KEY.  */
+
+int
+semget (key, nsems, semflg)
+     key_t key;
+     int nsems;
+     int semflg;
+{
+  return __ipc (IPCOP_semget, key, nsems, semflg, NULL);
+}
diff --git a/sysdeps/unix/sysv/linux/semop.c b/sysdeps/unix/sysv/linux/semop.c
new file mode 100644
index 0000000000..57f074e90e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/semop.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <sys/sem.h>
+
+/* Perform user-defined atomical operation of array of semaphores.  */
+
+int
+semop (semid, sops, nsops)
+     int semid;
+     struct sembuf *sops;
+     unsigned int nsops;
+{
+  return __ipc (IPCOP_semop, semid, (int) nsops, 0, sops);
+}
diff --git a/sysdeps/unix/sysv/linux/send.S b/sysdeps/unix/sysv/linux/send.S
new file mode 100644
index 0000000000..52293c6524
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/send.S
@@ -0,0 +1,2 @@
+#define	socket	send
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/sendmsg.S b/sysdeps/unix/sysv/linux/sendmsg.S
new file mode 100644
index 0000000000..65f2c3eb98
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sendmsg.S
@@ -0,0 +1,2 @@
+#define	socket	sendmsg
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/sendto.S b/sysdeps/unix/sysv/linux/sendto.S
new file mode 100644
index 0000000000..aa637ce9c9
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sendto.S
@@ -0,0 +1,2 @@
+#define	socket	sendto
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/setegid.c b/sysdeps/unix/sysv/linux/setegid.c
new file mode 100644
index 0000000000..1b29a6ffb2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/setegid.c
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/setegid.c>
diff --git a/sysdeps/unix/sysv/linux/seteuid.c b/sysdeps/unix/sysv/linux/seteuid.c
new file mode 100644
index 0000000000..850f3c5656
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/seteuid.c
@@ -0,0 +1,36 @@
+/* Copyright (C) 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 <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+int
+__seteuid (uid)
+     uid_t uid;
+{
+  if (uid == (uid_t) ~0)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  return __setreuid (-1, uid);
+}
+
+weak_alias (__seteuid, seteuid)
diff --git a/sysdeps/unix/sysv/linux/sethostid.c b/sysdeps/unix/sysv/linux/sethostid.c
new file mode 100644
index 0000000000..eb71b74a1d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sethostid.c
@@ -0,0 +1,2 @@
+#define SET_PROCEDURE 1
+#include "gethostid.c"
diff --git a/sysdeps/unix/sysv/linux/setpgid.S b/sysdeps/unix/sysv/linux/setpgid.S
new file mode 100644
index 0000000000..ba8140fb53
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/setpgid.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 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>
+
+SYSCALL (setpgid, 2)
+	ret
diff --git a/sysdeps/unix/sysv/linux/setpgrp.c b/sysdeps/unix/sysv/linux/setpgrp.c
new file mode 100644
index 0000000000..4497e07018
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/setpgrp.c
@@ -0,0 +1,25 @@
+/* Copyright (C) 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 <unistd.h>
+
+int
+setpgrp ()
+{
+  return setpgid (0, 0);
+}
diff --git a/sysdeps/unix/sysv/linux/setsid.S b/sysdeps/unix/sysv/linux/setsid.S
new file mode 100644
index 0000000000..4930c56dcf
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/setsid.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/bsd4.4/setsid.S>
diff --git a/sysdeps/unix/sysv/linux/setsockopt.S b/sysdeps/unix/sysv/linux/setsockopt.S
new file mode 100644
index 0000000000..33d57179ca
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/setsockopt.S
@@ -0,0 +1,2 @@
+#define	socket	setsockopt
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/settimeofday.S b/sysdeps/unix/sysv/linux/settimeofday.S
new file mode 100644
index 0000000000..4f86a26ac4
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/settimeofday.S
@@ -0,0 +1,24 @@
+/* Copyright (C) 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>
+
+SYSCALL__ (settimeofday, 2)
+	ret
+
+weak_alias (__settimeofday, settimeofday)
diff --git a/sysdeps/unix/sysv/linux/shmat.c b/sysdeps/unix/sysv/linux/shmat.c
new file mode 100644
index 0000000000..1efef29215
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/shmat.c
@@ -0,0 +1,37 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <sys/sem.h>
+
+/* Attach the shared memory segment associated with SHMID to the data
+   segment of the calling process.  SHMADDR and SHMFLG determine how
+   and where the segment is attached.  */
+
+char *
+shmat (shmid, shmaddr, shmflg)
+     int shmid;
+     char *shmaddr;
+     int shmflg;
+{
+  int retval;
+  unsigned long raddr;
+
+  retval = __ipc (IPCOP_shmat, shmid, shmflg, (int) &raddr, shmaddr);
+  return retval < 0 ? (char *) retval : (char *) raddr;
+}
diff --git a/sysdeps/unix/sysv/linux/shmctl.c b/sysdeps/unix/sysv/linux/shmctl.c
new file mode 100644
index 0000000000..81192a8996
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/shmctl.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <sys/shm.h>
+
+/* Provide operations to control over shared memory segments.  */
+
+int
+shmctl (shmid, cmd, buf)
+     int shmid;
+     int cmd;
+     struct shmid_ds *buf;
+{
+  return __ipc (IPCOP_shmctl, shmid, cmd, 0, buf);
+}
diff --git a/sysdeps/unix/sysv/linux/shmdt.c b/sysdeps/unix/sysv/linux/shmdt.c
new file mode 100644
index 0000000000..1e5bbe13b1
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/shmdt.c
@@ -0,0 +1,30 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <sys/shm.h>
+
+/* Detach shared memory segment starting at address specified by SHMADDR
+   from the caller's data segment.  */
+
+int
+shmdt (shmaddr)
+     char *shmaddr;
+{
+  return __ipc (IPCOP_shmdt, 0, 0, 0, shmaddr);
+}
diff --git a/sysdeps/unix/sysv/linux/shmget.c b/sysdeps/unix/sysv/linux/shmget.c
new file mode 100644
index 0000000000..f0b2b6531d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/shmget.c
@@ -0,0 +1,33 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#include <sys/shm.h>
+#include <stdlib.h>		/* for definition of NULL */
+
+/* Return an identifier for an shared memory segment of at least size SIZE
+   which is associated with KEY.  */
+
+int
+shmget (key, size, shmflg)
+     key_t key;
+     int size;
+     int shmflg;
+{
+  return __ipc (IPCOP_shmget, key, size, shmflg, NULL);
+}
diff --git a/sysdeps/unix/sysv/linux/shutdown.S b/sysdeps/unix/sysv/linux/shutdown.S
new file mode 100644
index 0000000000..6cc95d50f9
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/shutdown.S
@@ -0,0 +1,2 @@
+#define	socket	shutdown
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/sigaction.S b/sysdeps/unix/sysv/linux/sigaction.S
new file mode 100644
index 0000000000..0618d6ea95
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sigaction.S
@@ -0,0 +1,24 @@
+/* Copyright (C) 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>
+
+SYSCALL__ (sigaction, 3)
+	ret
+
+weak_alias (__sigaction, sigaction)
diff --git a/sysdeps/unix/sysv/linux/signal.S b/sysdeps/unix/sysv/linux/signal.S
new file mode 100644
index 0000000000..68582a68f7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/signal.S
@@ -0,0 +1,8 @@
+#include <sysdeps/unix/sysv/signal.S>
+
+/* Used in siginterrupt() */
+
+	.data
+	.globl _sigintr
+_sigintr:
+	.long 0
diff --git a/sysdeps/unix/sysv/linux/sigpending.S b/sysdeps/unix/sysv/linux/sigpending.S
new file mode 100644
index 0000000000..574ea3a282
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sigpending.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/sco3.2.4/sigpending.S>
diff --git a/sysdeps/unix/sysv/linux/sigset.h b/sysdeps/unix/sysv/linux/sigset.h
new file mode 100644
index 0000000000..e9bbb9652a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sigset.h
@@ -0,0 +1 @@
+#include <sysdeps/generic/sigset.h>
diff --git a/sysdeps/unix/sysv/linux/sockaddrcom.h b/sysdeps/unix/sysv/linux/sockaddrcom.h
new file mode 100644
index 0000000000..768d05be35
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sockaddrcom.h
@@ -0,0 +1,37 @@
+/* Definition of `struct sockaddr_*' common members.  Generic/4.2 BSD version.
+Copyright (C) 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.  */
+
+#ifndef _SOCKADDRCOM_H
+#define _SOCKADDRCOM_H	1
+
+/* This prevents including the file <linux/socket.h>.  */
+#define _LINUX_SOCKET_H
+#define _LINUX_TYPES_H
+
+/* This macro is used to declare the initial common members
+   of the data types used for socket addresses, `struct sockaddr',
+   `struct sockaddr_in', `struct sockaddr_un', etc.  */
+
+#define	__SOCKADDR_COMMON(sa_prefix) \
+  unsigned short int sa_prefix##family
+
+#define __SOCKADDR_COMMON_SIZE	(sizeof (unsigned short int))
+
+
+#endif	/* sockaddrcom.h */
diff --git a/sysdeps/unix/sysv/linux/socketpair.S b/sysdeps/unix/sysv/linux/socketpair.S
new file mode 100644
index 0000000000..da71c57dea
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/socketpair.S
@@ -0,0 +1,2 @@
+#define	socket	socketpair
+#include <socket.S>
diff --git a/sysdeps/unix/sysv/linux/speed.c b/sysdeps/unix/sysv/linux/speed.c
new file mode 100644
index 0000000000..84811deba6
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/speed.c
@@ -0,0 +1,103 @@
+/* `struct termios' speed frobnication functions.  Linux version.
+Copyright (C) 1991, 1992, 1993, 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 <stddef.h>
+#include <errno.h>
+#include <termios.h>
+
+static const speed_t speeds[] =
+  {
+    0,
+    50,
+    75,
+    110,
+    134,
+    150,
+    200,
+    300,
+    600,
+    1200,
+    1800,
+    2400,
+    4800,
+    9600,
+    19200,
+    38400,
+    38400,		/* Mention this twice here is a trick.  */
+    57600,
+    115200,
+    230400,
+  };
+
+
+/* Return the output baud rate stored in *TERMIOS_P.  */
+speed_t
+cfgetospeed (termios_p)
+     const struct termios *termios_p;
+{
+  speed_t retval = termios_p->c_cflag & (CBAUD | CBAUDEX);
+
+  if (retval & CBAUDEX)
+    {
+      retval &= ~CBAUDEX;
+      retval |= CBAUD + 1;
+    }
+
+  return retval;
+}
+
+/* Return the input baud rate stored in *TERMIOS_P.
+   For Linux there is no difference between input and output speed.  */
+strong_alias (cfgetospeed, cfgetispeed);
+
+/* Set the output baud rate stored in *TERMIOS_P to SPEED.  */
+int
+cfsetospeed  (termios_p, speed) 
+     struct termios *termios_p;
+     speed_t speed;
+{
+  register unsigned int i;
+
+  if (termios_p == NULL)
+    {
+      errno = EINVAL;
+      return -1;
+    }
+
+  /* This allows either B1200 or 1200 to work.	XXX
+     Do we really want to try to support this, given that
+     fetching the speed must return one or the other?  */
+
+  for (i = 0; i < sizeof (speeds) / sizeof (speeds[0]); ++i)
+    if (i == speed || speeds[i] == speed)
+      {
+	termios_p->c_cflag &= ~(CBAUD | CBAUDEX);
+	termios_p->c_cflag |= (i & CBAUD);
+	if (i & ~CBAUD)
+	  termios_p->c_cflag |= CBAUDEX;
+	return 0;
+      }
+
+  errno = EINVAL;
+  return -1;
+}
+
+/* Set the input baud rate stored in *TERMIOS_P to SPEED.
+   For Linux there is no difference between input and output speed.  */
+strong_alias (cfsetospeed, cfsetispeed);
diff --git a/sysdeps/unix/sysv/linux/statbuf.h b/sysdeps/unix/sysv/linux/statbuf.h
new file mode 100644
index 0000000000..ad81704ae5
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/statbuf.h
@@ -0,0 +1,72 @@
+/* Copyright (C) 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.  */
+
+#ifndef	_STATBUF_H
+#define	_STATBUF_H
+
+struct stat
+  {
+    short int st_dev;			/* Device.  */
+    unsigned short __pad1;
+    unsigned long int st_ino;		/* File serial number.	*/
+    unsigned short int st_mode;		/* File mode.  */
+    unsigned short int st_nlink;	/* Link count.  */
+    unsigned short int st_uid;		/* User ID of the file's owner.	*/
+    unsigned short int st_gid;		/* Group ID of the file's group.*/
+    unsigned short int st_rdev;		/* Device number, if device.  */
+    unsigned short int __pad2;
+    long int st_size;			/* Size of file, in bytes.  */
+    unsigned long int st_blksize;	/* Optimal block size for I/O.  */
+#define	_STATBUF_ST_BLKSIZE		/* Tell code we have this member.  */
+
+    unsigned long int st_blocks;	/* Number of 512-byte blocks allocated.  */
+    long int st_atime;			/* Time of last access.  */
+    unsigned long int __unused1;
+    long int st_mtime;			/* Time of last modification.  */
+    unsigned long int __unused2;
+    long int st_ctime;			/* Time of last status change.  */
+    unsigned long int __unused3;
+    unsigned long int __unused4;
+    unsigned long int __unused5;
+  };
+
+/* Encoding of the file mode.  */
+
+#define	__S_IFMT	0170000	/* These bits determine file type.  */
+
+/* File types.  */
+#define	__S_IFDIR	0040000	/* Directory.  */
+#define	__S_IFCHR	0020000	/* Character device.  */
+#define	__S_IFBLK	0060000	/* Block device.  */
+#define	__S_IFREG	0100000	/* Regular file.  */
+#define	__S_IFIFO	0010000	/* FIFO.  */
+
+/* These don't actually exist on System V, but having them doesn't hurt.  */
+#define	__S_IFLNK	0120000	/* Symbolic link.  */
+#define	__S_IFSOCK	0140000	/* Socket.  */
+
+/* Protection bits.  */
+
+#define	__S_ISUID	04000	/* Set user ID on execution.  */
+#define	__S_ISGID	02000	/* Set group ID on execution.  */
+#define	__S_ISVTX	01000	/* Save swapped text after use (sticky).  */
+#define	__S_IREAD	0400	/* Read by owner.  */
+#define	__S_IWRITE	0200	/* Write by owner.  */
+#define	__S_IEXEC	0100	/* Execute by owner.  */
+
+#endif	/* statbuf.h */
diff --git a/sysdeps/unix/sysv/linux/stty.S b/sysdeps/unix/sysv/linux/stty.S
new file mode 100644
index 0000000000..6c04c2af38
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/stty.S
@@ -0,0 +1,22 @@
+/* Copyright (C) 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>
+
+SYSCALL (stty, 2)
+	ret
diff --git a/sysdeps/unix/sysv/linux/sys/ipc_buf.h b/sysdeps/unix/sysv/linux/sys/ipc_buf.h
new file mode 100644
index 0000000000..767fc9ade9
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sys/ipc_buf.h
@@ -0,0 +1,84 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_IPC_BUF_H
+#define _SYS_IPC_BUF_H
+
+#include <features.h>
+#include <sys/types.h>
+
+/* Mode bits for `msgget', `semget', and `shmget'.  */
+#define IPC_CREAT	01000		/* create key if key does not exist */
+#define IPC_EXCL	02000		/* fail if key exists */
+#define IPC_NOWAIT	04000		/* return error on wait */
+
+/* Control commands for `msgctl', `semctl', and `shmctl'.  */
+#define IPC_RMID	0		/* remove identifier */
+#define IPC_SET		1		/* set `ipc_perm' options */
+#define IPC_STAT	2		/* get `ipc_perm' options */
+#define IPC_INFO	3		/* see ipcs */
+
+
+__BEGIN_DECLS
+
+/* Special key values.  */
+#define IPC_PRIVATE	((key_t) 0)	/* private key */
+
+
+/* Data structure used to pass permission information to IPC operations.  */
+struct ipc_perm
+{
+  key_t __key;				/* key */
+  __uid_t uid;				/* owner's user ID */
+  __gid_t gid;				/* owner's group ID */
+  __uid_t cuid;				/* creator's user ID */
+  __gid_t cgid;				/* creator's group ID */
+  __mode_t mode;			/* read/write permission */
+  unsigned short int __seq;		/* sequence number */
+};
+
+
+/* Kludge to work around Linux' restriction of only up to five
+   arguments to a system call.  */
+struct ipc_kludge
+{
+  void *msgp;
+  long msgtyp;
+};
+
+/* The actual system call: all functions are multiplexed by this.  */
+extern int __ipc __P ((int __call, int __first, int __second, int __third,
+		       void *__ptr));
+
+/* The codes for the functions to use the multiplexer `__ipc'.  */
+#define IPCOP_semop	 1
+#define IPCOP_semget	 2
+#define IPCOP_semctl	 3
+#define IPCOP_msgsnd	11
+#define IPCOP_msgrcv	12
+#define IPCOP_msgget	13
+#define IPCOP_msgctl	14
+#define IPCOP_shmat	21
+#define IPCOP_shmdt	22
+#define IPCOP_shmget	23
+#define IPCOP_shmctl	24
+
+__END_DECLS
+
+#endif /* sys/ipc_buf.h */
diff --git a/sysdeps/unix/sysv/linux/sys/mman.h b/sysdeps/unix/sysv/linux/sys/mman.h
new file mode 100644
index 0000000000..b05738d8e4
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sys/mman.h
@@ -0,0 +1,112 @@
+/* Definitions for BSD-style memory management.  Linux version.
+Copyright (C) 1994, 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.  */
+
+/* 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.  */
+
+
+/* Flags contain mapping type, sharing type and options.  */
+
+/* Mapping type (must choose one and only one of these).  */
+#define	MAP_FILE	0x0000	/* Mapped from a file or device.  */
+#define	MAP_ANON	0x0020	/* Allocated from anonymous virtual memory.  */
+#define	MAP_TYPE	0x000f	/* Mask for type field.  */
+
+/* Sharing types (must choose one and only one of these).  */
+#define	MAP_COPY	MAP_PRIVATE	/* Virtual copy of region at mapping time.  */
+#define	MAP_SHARED	0x0001	/* Share changes.  */
+#define	MAP_PRIVATE	0x0002	/* Changes private; copy pages on write.  */
+
+/* Other flags.  */
+#define	MAP_FIXED	0x0010	/* Map address must be exactly as requested. */
+#define	MAP_NOEXTEND	0x0000	/* For MAP_FILE, don't change file size.
+				   Not available on Linux???  */
+#define	MAP_HASSEMPHORE	0x0000	/* Region may contain semaphores.
+				   Not available on Linux???  */
+#define	MAP_INHERIT	0x0000	/* Region is retained after exec.
+				   Not available on Linux???  */
+
+/* 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));
+__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));
+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));
+
+/* 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/sysv/linux/sys/msq_buf.h b/sysdeps/unix/sysv/linux/sys/msq_buf.h
new file mode 100644
index 0000000000..92a52d515d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sys/msq_buf.h
@@ -0,0 +1,54 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_MSQ_BUF_H
+#define _SYS_MSQ_BUF_H
+
+#include <features.h>
+#include <sys/types.h>
+
+/* Define options for message queue functions.  */
+#define MSG_NOERROR	010000	/* no error if message is too big */
+#define MSG_EXCEPT	020000	/* recv any msg except of specified type */
+
+
+__BEGIN_DECLS
+
+/* Structure of record for one message inside the kernel.
+   The type `struct __msg' is opaque.  */
+struct msqid_ds
+{
+  struct ipc_perm msg_perm;	/* structure describing operation permission */
+  struct msg *__msg_first;	/* pointer to first message on queue */
+  struct msg *__msg_last;	/* pointer to last message on queue */
+  __time_t msg_stime;		/* time of last msgsnd command */
+  __time_t msg_rtime;		/* time of last msgrcv command */
+  __time_t msg_ctime;		/* time of last change */
+  struct wait_queue *__wwait;	/* ??? */
+  struct wait_queue *__rwait;	/* ??? */
+  unsigned short int __msg_cbytes;/* current number of bytes on queue */
+  unsigned short int msg_qnum;	/* number of messages currently on queue */
+  unsigned short int msg_qbytes;/* max number of bytes allowed on queue */
+  __pid_t msg_lspid;		/* pid of last msgsnd() */
+  __pid_t msg_lrpid;		/* pid of last msgrcv() */
+};
+
+__END_DECLS
+
+#endif /* sys/msq_buf.h */
diff --git a/sysdeps/unix/sysv/linux/sys/sem_buf.h b/sysdeps/unix/sysv/linux/sys/sem_buf.h
new file mode 100644
index 0000000000..d93002ad6e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sys/sem_buf.h
@@ -0,0 +1,65 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_SEM_BUF_H
+#define _SYS_SEM_BUF_H
+
+#include <features.h>
+#include <sys/types.h>
+
+/* Flags for `semop'.  */
+#define SEM_UNDO	0x1000		/* undo the operation on exit */
+
+/* Commands for `semctl'.  */
+#define GETPID		11		/* get sempid */
+#define GETVAL		12		/* get semval */
+#define GETALL		13		/* get all semval's */
+#define GETNCNT		14		/* get semncnt */
+#define GETZCNT		15		/* get semzcnt */
+#define SETVAL		16		/* set semval */
+#define SETALL		17		/* set all semval's */
+
+
+__BEGIN_DECLS
+
+/* Data structure describing a set of semaphores.  */
+struct semid_ds
+{
+  struct ipc_perm sem_perm;		/* operation permisson struct */
+  __time_t sem_otime;			/* last semop() time */
+  __time_t sem_ctime;			/* last time changed by semctl() */
+  struct sem *__sembase;		/* ptr to first semaphore in array */
+  struct sem_queue *__sem_pending;	/* pending operations */
+  struct sem_queue *__sem_pending_last; /* last pending operation */
+  struct sem_undo *__undo;		/* ondo requests on this array */
+  unsigned short int sem_nsems;		/* number of semaphores in set */
+};
+
+/* Union used for argument for `semctl'.  */
+union semun
+{
+  int val;				/* value for SETVAL */
+  struct semid_ds *buf;			/* buffer for IPC_STAT & IPC_SET */
+  unsigned short int *array;		/* array for GETALL & SETALL */
+  struct seminfo *__buf;		/* buffer for IPC_INFO */
+};
+
+__END_DECLS
+
+#endif /* sys/sem_buf.h */
diff --git a/sysdeps/unix/sysv/linux/sys/shm_buf.h b/sysdeps/unix/sysv/linux/sys/shm_buf.h
new file mode 100644
index 0000000000..fa1e8235d8
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sys/shm_buf.h
@@ -0,0 +1,56 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_SHM_BUF_H
+#define _SYS_SHM_BUF_H
+
+#include <features.h>
+#include <sys/types.h>
+
+/* Flags for `shmat'.  */
+#define SHM_RDONLY	010000		/* attach read-only else read-write */
+#define SHM_RND		020000		/* round attach address to SHMLBA */
+#define SHM_REMAP	040000		/* take-over region on attach */
+
+/* Commands for `shmctl'.  */
+#define SHM_LOCK	11		/* lock segment (root only) */
+#define SHM_UNLOCK	12		/* unlock segment (root only) */
+
+
+__BEGIN_DECLS
+
+/* Data structure describing a set of semaphores.  */
+struct shmid_ds
+{
+  struct ipc_perm sem_perm;		/* operation permisson struct */
+  int shm_segsz;			/* size of segment in bytes */
+  __time_t sem_atime;			/* time of last shmat() */
+  __time_t sem_dtime;			/* time of last shmdt() */
+  __time_t sem_ctime;			/* time of last change by shmctl() */
+  __pid_t shm_cpid;			/* pid of creator */
+  __pid_t shm_lpid;			/* pid of last shmop */
+  unsigned short int shm_nattch;	/* number of current attaches */
+  unsigned short int __shm_npages;	/* size of segment (pages) */
+  unsigned long int *__shm_pages;	/* array of ptrs to frames -> SHMMAX */
+  struct vm_area_struct *__attaches;	/* descriptors for attaches */
+};
+
+__END_DECLS
+
+#endif /* sys/shm_buf.h */
diff --git a/sysdeps/unix/sysv/linux/sys/socketcall.h b/sysdeps/unix/sysv/linux/sys/socketcall.h
new file mode 100644
index 0000000000..4bfd71264c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sys/socketcall.h
@@ -0,0 +1,46 @@
+/* ID for functions called via socketcall system call.
+   Copyright (C) 1995 Free Software Foundation, Inc.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_SOCKETCALL_H
+#define _SYS_SOCKETCALL_H
+
+/* Define unique numbers for the operations permitted on socket.  Linux
+   uses a single system call for all these functions.  The relevant code
+   file is /usr/include/linux/net.h.
+   We cannot use a enum here because the values are used in assembler
+   code.  */
+
+#define SOCKOP_socket		1
+#define SOCKOP_bind		2
+#define SOCKOP_connect		3
+#define SOCKOP_listen		4
+#define SOCKOP_accept		5
+#define SOCKOP_getsockname	6
+#define SOCKOP_getpeername	7
+#define SOCKOP_socketpair	8
+#define SOCKOP_send		9
+#define SOCKOP_recv		10
+#define SOCKOP_sendto		11
+#define SOCKOP_recvfrom		12
+#define SOCKOP_shutdown		13
+#define SOCKOP_setsockopt	14
+#define SOCKOP_getsockopt	15
+#define SOCKOP_sendmsg		16
+#define SOCKOP_recvmsg		17
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/sys/timex.h b/sysdeps/unix/sysv/linux/sys/timex.h
new file mode 100644
index 0000000000..fad47cd607
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sys/timex.h
@@ -0,0 +1,30 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+#ifndef _SYS_TIMEX_H
+#define _SYS_TIMEX_H
+
+#include <features.h>
+#include <linux/timex.h>
+
+__BEGIN_DECLS
+
+extern int __adjtimex __P ((struct timex *__ntx));
+
+__END_DECLS
+
+#endif /* sys/timex.h */
diff --git a/sysdeps/unix/sysv/linux/syscall.h b/sysdeps/unix/sysv/linux/syscall.h
new file mode 100644
index 0000000000..fe6cfcf84c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/syscall.h
@@ -0,0 +1,59 @@
+/* Copyright (C) 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.  */
+
+#ifndef _SYSCALL_H
+#define _SYSCALL_H
+
+/* This file should list the numbers of the system the system knows.
+   But instead of duplicating this we use the information available
+   from the kernel sources.  */
+#include <asm/unistd.h>
+
+/* Among the system calls defined there are
+	_dup2	
+	_mkdir	
+	_rmdir	
+	_readlink	
+	_symlink	
+	_rename		
+	_swapon		
+	_access		
+	_select		
+	_getgroups	
+	_setgroups	
+	_getitimer	
+	_setitimer	
+	_setdomainname	
+	_getrlimit	
+	_setrlimit	
+	_getrusage	
+	_getpriority	
+	_setpriority	
+	_truncate	
+	_ftruncate	
+	_setpgid	
+	_fchmod	
+	_fchdir	
+	_fchown	
+	_setregid	
+	_setreuid	
+	_vhangup	
+   (This is a hack for the autoconf mechanism.  Don't change a single
+    character, esp white spaces, unless you know what you are doing!)  */
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/sysconf.c b/sysdeps/unix/sysv/linux/sysconf.c
new file mode 100644
index 0000000000..e366d04a8b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/sysconf.c
@@ -0,0 +1 @@
+#include <sysdeps/posix/sysconf.c>
diff --git a/sysdeps/unix/sysv/linux/tcdrain.c b/sysdeps/unix/sysv/linux/tcdrain.c
new file mode 100644
index 0000000000..67c7573cf9
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/tcdrain.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 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 <termios.h>
+#include <sys/ioctl.h>
+
+/* Wait for pending output to be written on FD.  */
+int
+__tcdrain (fd)
+      int fd;
+{
+  /* With an argument of 1, TCSBRK for output to be drain.  */
+  return __ioctl (fd, TCSBRK, 1);
+}
+
+weak_alias (__tcdrain, tcdrain)
diff --git a/sysdeps/unix/sysv/linux/tcflow.c b/sysdeps/unix/sysv/linux/tcflow.c
new file mode 100644
index 0000000000..5be68e2ea2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/tcflow.c
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/sun/sunos4/tcflow.c>
diff --git a/sysdeps/unix/sysv/linux/tcflush.c b/sysdeps/unix/sysv/linux/tcflush.c
new file mode 100644
index 0000000000..78e09b2f75
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/tcflush.c
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/sun/sunos4/tcflush.c>
diff --git a/sysdeps/unix/sysv/linux/tcgetattr.c b/sysdeps/unix/sysv/linux/tcgetattr.c
new file mode 100644
index 0000000000..3f12348478
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/tcgetattr.c
@@ -0,0 +1,31 @@
+/* Copyright (C) 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 <termios.h>
+#include <sys/ioctl.h>
+
+/* Put the state of FD into *TERMIOS_P.  */
+int
+__tcgetattr (fd, termios_p)
+      int fd;
+      struct termios *termios_p;
+{
+  return __ioctl (fd, TCGETS, termios_p);
+}
+
+weak_alias (__tcgetattr, tcgetattr)
diff --git a/sysdeps/unix/sysv/linux/tcsetattr.c b/sysdeps/unix/sysv/linux/tcsetattr.c
new file mode 100644
index 0000000000..ef5009d1c8
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/tcsetattr.c
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/sun/sunos4/tcsetattr.c>
diff --git a/sysdeps/unix/sysv/linux/termbits.h b/sysdeps/unix/sysv/linux/termbits.h
new file mode 100644
index 0000000000..8a71334ba0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/termbits.h
@@ -0,0 +1,209 @@
+/* termios type and macro definitions.  Linux version.
+Copyright (C) 1993, 1994, 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.  */
+
+/* Type of terminal control flag masks.  */
+typedef unsigned int tcflag_t;
+
+/* Type of control characters.  */
+typedef unsigned char cc_t;
+
+/* Type of baud rate specifiers.  */
+typedef unsigned int speed_t;
+
+/* Terminal control structure.  */
+struct termios
+{
+  /* Input modes.  */
+  tcflag_t c_iflag;
+#define	IGNBRK	0x0001		/* Ignore break condition.  */
+#define	BRKINT	0x0002		/* Signal interrupt on break.  */
+#define	IGNPAR	0x0004		/* Ignore characters with parity errors.  */
+#define	PARMRK	0x0008		/* Mark parity and framing errors.  */
+#define	INPCK	0x0010		/* Enable input parity check.  */
+#define	ISTRIP	0x0020		/* Strip 8th bit off characters.  */
+#define	INLCR	0x0040		/* Map NL to CR on input.  */
+#define	IGNCR	0x0080		/* Ignore CR.  */
+#define	ICRNL	0x0100		/* Map CR to NL on input.  */
+#ifdef __USE_BSD
+#define	IUCLC	0x0200		/* Map upper case to lower case on input.  */
+#endif
+#define	IXON	0x0400		/* Enable start/stop output control.  */
+#define	IXOFF	0x1000		/* Enable start/stop input control.  */
+#ifdef	__USE_BSD
+#define	IXANY	0x0800		/* Any character will restart after stop.  */
+#define	IMAXBEL	0x2000		/* Ring bell when input queue is full.  */
+#endif
+
+  /* Output modes.  */
+  tcflag_t c_oflag;
+#define	OPOST	0x0001		/* Perform output processing.  */
+#ifdef	__USE_BSD
+#define	OLCUC	0x00000002	/* Map lower case to upper case on output.  */
+#define	ONLCR	0x00000004	/* Map NL to CR-NL on output.  */
+#define	OCRNL	0x00000008
+#define	ONOCR	0x00000010
+#define	ONLRET	0x00000020
+#define	OFILL	0x00000040
+#define	OFDEL	0x00000080
+#define	NLDLY	0x00000100
+#define	NL0	0
+#define	NL1	0x00000100
+#define	CRDLY	0x00000600
+#define	CR0	0
+#define	CR1	0x00000200
+#define	CR2	0x00000400
+#define	CR3	0x00000600
+#define	TABDLY	0x00001800
+#define	TAB0	0
+#define	TAB1	0x00000800
+#define	TAB2	0x00001000
+#define	XTABS	0x00001800
+#define	TAB3	XTABS
+#define	BSDLY	0x00002000
+#define	BS0	0
+#define	BS1	0x00002000
+#define	VTDLY	0x00004000
+#define	VT0	0
+#define	VT1	0x00004000
+#define	FFDLY	0x00008000
+#define	FF0	0
+#define	FF1	0x00008000
+#define	PAGEOUT	0x00010000
+#define	WRAP	0x00020000
+#endif
+
+  /* Control modes.  */
+  tcflag_t c_cflag;
+#define	CSIZE	(CS5|CS6|CS7|CS8) /* Number of bits per byte (mask).  */
+#define	CS5	0		/* 5 bits per byte.  */
+#define	CS6	0x00000010	/* 6 bits per byte.  */
+#define	CS7	0x00000020	/* 7 bits per byte.  */
+#define	CS8	0x00000030	/* 8 bits per byte.  */
+#define	CSTOPB	0x00000040	/* Two stop bits instead of one.  */
+#define	CREAD	0x00000080	/* Enable receiver.  */
+#define	PARENB	0x00000100	/* Parity enable.  */
+#define	PARODD	0x00000200	/* Odd parity instead of even.  */
+#define	HUPCL	0x00000400	/* Hang up on last close.  */
+#define	CLOCAL	0x00000800	/* Ignore modem status lines.  */
+#ifdef	__USE_BSD
+#define	CRTSCTS	0x08000000
+#define	CBAUD	0x0000000f	/* Mask for speed from c_cflag.  */
+#define CBAUDEX	0x00010000	/* Mask for extended speed from c_cflag.  */
+#endif
+
+  /* Input and output baud rates.  These are encoded in c_cflag.  */
+#define B0      0x000000000
+#define B50     0x000000001
+#define B75     0x000000002
+#define B110    0x000000003
+#define B134    0x000000004
+#define B150    0x000000005
+#define B200    0x000000006
+#define B300    0x000000007
+#define B600    0x000000008
+#define B1200   0x000000009
+#define B1800   0x00000000a
+#define B2400   0x00000000b
+#define B4800   0x00000000c
+#define B9600   0x00000000d
+#define B19200  0x00000000e
+#define B38400  0x00000000f
+#ifdef __USE_BSD
+#define EXTA    0x00000000e
+#define EXTB    0x00000000f
+#endif
+#define B57600	0x000010001
+#define B115200	0x000010002
+#define B230400	0x000010003
+
+  /* Local modes.  */
+  tcflag_t c_lflag;
+#ifdef	__USE_BSD
+#define	ECHOKE	0x00000800	/* Visual erase for KILL.  */
+#endif
+#define	ECHOE	0x00000010	/* Visual erase for ERASE.  */
+#define	ECHOK	0x00000020	/* Echo NL after KILL.  */
+#define	ECHO	0x00000008	/* Enable echo.  */
+#define	ECHONL	0x00000040	/* Echo NL even if ECHO is off.  */
+#ifdef	__USE_BSD
+#define	ECHOPRT	0x00000400	/* Hardcopy visual erase.  */
+#define	ECHOCTL	0x00000200	/* Echo control characters as ^X.  */
+#endif
+#define	ISIG	0x00000001	/* Enable signals.  */
+#define	ICANON	0x00000002	/* Do erase and kill processing.  */
+#define	IEXTEN	0x00008000	/* Enable DISCARD and LNEXT.  */
+#define	TOSTOP	0x00000100	/* Send SIGTTOU for background output.  */
+#ifdef	__USE_BSD
+#define	PENDIN	0x00004000	/* Retype pending input (state).  */
+#endif
+#define	NOFLSH	0x00000080	/* Disable flush after interrupt.  */
+
+  cc_t c_line;			/* Line discipline (?) */
+
+  /* Control characters.  */
+#define	VEOF	4		/* End-of-file character [ICANON].  */
+#define	VEOL	5		/* End-of-line character [ICANON].  */
+#ifdef	__USE_BSD
+#define	VEOL2	6		/* Second EOL character [ICANON].  */
+#define	VSWTCH	7		/* ??? */
+#endif
+#define	VERASE	2		/* Erase character [ICANON].  */
+#ifdef	__USE_BSD
+#define	VWERASE	14		/* Word-erase character [ICANON].  */
+#endif
+#define	VKILL	3		/* Kill-line character [ICANON].  */
+#ifdef	__USE_BSD
+#define	VREPRINT 12		/* Reprint-line character [ICANON].  */
+#endif
+#define	VINTR	0		/* Interrupt character [ISIG].  */
+#define	VQUIT	1		/* Quit character [ISIG].  */
+#define	VSUSP	10		/* Suspend character [ISIG].  */
+#ifdef	__USE_BSD
+#define	VDSUSP	11		/* Delayed suspend character [ISIG].  */
+#endif
+#define	VSTART	8		/* Start (X-ON) character [IXON, IXOFF].  */
+#define	VSTOP	9		/* Stop (X-OFF) character [IXON, IXOFF].  */
+#ifdef	__USE_BSD
+#define	VLNEXT	15		/* Literal-next character [IEXTEN].  */
+#define	VDISCARD 13		/* Discard character [IEXTEN].  */
+#endif
+#define	VMIN	VEOF		/* Minimum number of bytes read at once [!ICANON].  */
+#define	VTIME	VEOL		/* Time-out value (tenths of a second) [!ICANON].  */
+#define	NCCS	19
+  cc_t c_cc[NCCS];
+};
+
+#define _IOT_termios /* Hurd ioctl type field.  */ \
+  _IOT (_IOTS (cflag_t), 4, _IOTS (cc_t), NCCS, _IOTS (speed_t), 2)
+
+/* Values for the OPTIONAL_ACTIONS argument to `tcsetattr'.  */
+#define	TCSANOW		0	/* Change immediately.  */
+#define	TCSADRAIN	1	/* Change when pending output is written.  */
+#define	TCSAFLUSH	2	/* Flush pending input before changing.  */
+
+/* Values for the QUEUE_SELECTOR argument to `tcflush'.  */
+#define	TCIFLUSH	0	/* Discard data received but not yet read.  */
+#define	TCOFLUSH	1	/* Discard data written but not yet sent.  */
+#define	TCIOFLUSH	2	/* Discard all pending data.  */
+
+/* Values for the ACTION argument to `tcflow'.  */
+#define	TCOOFF	0		/* Suspend output.  */
+#define	TCOON	1		/* Restart suspended output.  */
+#define	TCIOFF	2		/* Send a STOP character.  */
+#define	TCION	3		/* Send a START character.  */
diff --git a/sysdeps/unix/sysv/linux/ualarm.c b/sysdeps/unix/sysv/linux/ualarm.c
new file mode 100644
index 0000000000..5522f58892
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/ualarm.c
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/ualarm.c>
diff --git a/sysdeps/unix/sysv/linux/ulimit.c b/sysdeps/unix/sysv/linux/ulimit.c
new file mode 100644
index 0000000000..2b1193085a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/ulimit.c
@@ -0,0 +1,73 @@
+/* Copyright (C) 1991, 1992, 1994, 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 <ansidecl.h>
+#include <sysdep.h>
+#include <sys/resource.h>
+#include <unistd.h>
+#include <errno.h>
+
+/* Function depends on CMD:
+   1 = Return the limit on the size of a file, in units of 512 bytes.
+   2 = Set the limit on the size of a file to NEWLIMIT.  Only the
+       super-user can increase the limit.
+   3 = illegal due to shared libraries; normally is
+       (Return the maximum possible address of the data segment.)
+   4 = Return the maximum number of files that the calling process
+       can open.
+   Returns -1 on errors.  */
+long int
+__ulimit (cmd, newlimit)
+     int cmd;
+     long int newlimit;
+{
+  int status;
+
+  switch (cmd)
+    {
+    case 1:
+      {
+	/* Get limit on file size.  */
+	struct rlimit fsize;
+
+	status = getrlimit(RLIMIT_FSIZE, &fsize);
+	if (status < 0)
+	  return -1;
+
+	/* Convert from bytes to 512 byte units.  */
+	return fsize.rlim_cur / 512;
+      }
+    case 2:
+      /* Set limit on file size.  */
+      {
+	struct rlimit fsize;
+	fsize.rlim_cur = newlimit * 512;
+	fsize.rlim_max = newlimit * 512;
+	
+	return setrlimit(RLIMIT_FSIZE, &fsize);
+      }
+    case 4:
+      return sysconf(_SC_OPEN_MAX);
+
+    default:
+      errno = EINVAL;
+      return -1;
+    }
+}
+
+weak_alias (__ulimit, ulimit);
diff --git a/sysdeps/unix/sysv/linux/usleep.c b/sysdeps/unix/sysv/linux/usleep.c
new file mode 100644
index 0000000000..d08c6b6594
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/usleep.c
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/usleep.c>
diff --git a/sysdeps/unix/sysv/linux/utsnamelen.h b/sysdeps/unix/sysv/linux/utsnamelen.h
new file mode 100644
index 0000000000..c16c3852fb
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/utsnamelen.h
@@ -0,0 +1,24 @@
+/* Copyright (C) 1995 Free Software Foundation, Inc.
+
+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., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+
+/* Length of the entries in `struct utsname' is 65.  */
+#define _UTSNAME_LENGTH 65
+
+/* Linux provides as additional information in the `struct utsname'
+   the name of the current domain.  Define _UTSNAME_DOMAIN_LENGTH
+   to a value != 0 to activate this entry.  */
+#define _UTSNAME_DOMAIN_LENGTH _UTSNAME_LENGTH
diff --git a/sysdeps/unix/sysv/linux/vfork.c b/sysdeps/unix/sysv/linux/vfork.c
new file mode 100644
index 0000000000..9b4dd5f121
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/vfork.c
@@ -0,0 +1 @@
+#include <sysdeps/generic/vfork.c>
diff --git a/sysdeps/unix/sysv/linux/wait.c b/sysdeps/unix/sysv/linux/wait.c
new file mode 100644
index 0000000000..63cf60c64a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/wait.c
@@ -0,0 +1 @@
+#include <sysdeps/posix/wait.c>
diff --git a/sysdeps/unix/sysv/linux/wait4.S b/sysdeps/unix/sysv/linux/wait4.S
new file mode 100644
index 0000000000..e4c322341d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/wait4.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/bsd/bsd4.4/wait4.S>
diff --git a/sysdeps/unix/sysv/linux/waitpid.c b/sysdeps/unix/sysv/linux/waitpid.c
new file mode 100644
index 0000000000..d4ee06bf1b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/waitpid.c
@@ -0,0 +1,32 @@
+/* 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>
+#include <stdlib.h>
+#include <sys/wait.h>
+
+__pid_t
+__waitpid (pid, stat_loc, options)
+     __pid_t pid;
+     int *stat_loc;
+     int options;
+{
+  return __wait4 (pid, stat_loc, options, NULL);
+}
+
+weak_alias (__waitpid, waitpid)
diff --git a/sysdeps/unix/sysv/linux/writev.c b/sysdeps/unix/sysv/linux/writev.c
new file mode 100644
index 0000000000..0dc6a76014
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/writev.c
@@ -0,0 +1 @@
+#include <sysdeps/posix/writev.c>