* Makefile.in (LIBGNAT_TARGET_PAIRS, TOOLS_TARGET_PAIRS, MISCLIB,

        THREADSLIB, GNATLIB_SHARED, PREFIX_OBJS, LIBRARY_VERSION): Specialize
        for alpha-linux.
        * s-osinte-linux-alpha.ads, a-intnam-linux-alpha.ads: New files.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@93847 138bc75d-0d04-0410-961f-82ee72b054a4

4 files changed, 676 insertions, 0 deletions

diff --git a/gcc/ada/ChangeLog b/gcc/ada/ChangeLog
index 666c2c00f2e..09031a0d4d0 100644
--- a/gcc/ada/ChangeLog
+++ b/gcc/ada/ChangeLog
@@ -1,3 +1,10 @@
+2005-01-18  Richard Henderson  <rth@redhat.com>
+
+	* Makefile.in (LIBGNAT_TARGET_PAIRS, TOOLS_TARGET_PAIRS, MISCLIB,
+	THREADSLIB, GNATLIB_SHARED, PREFIX_OBJS, LIBRARY_VERSION): Specialize
+	for alpha-linux.
+	* s-osinte-linux-alpha.ads, a-intnam-linux-alpha.ads: New files.
+
 2005-01-14  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	* system-darwin-ppc.ads (ZCX_By_Default): Change to True.
diff --git a/gcc/ada/Makefile.in b/gcc/ada/Makefile.in
index 43809186177..118baec5832 100644
--- a/gcc/ada/Makefile.in
+++ b/gcc/ada/Makefile.in
@@ -1362,6 +1362,30 @@ ifeq ($(strip $(filter-out %ia64 linux%,$(arch) $(osys))),)
   LIBRARY_VERSION := $(LIB_VERSION)
 endif
 
+ifeq ($(strip $(filter-out alpha% linux%,$(arch) $(osys))),)
+  LIBGNAT_TARGET_PAIRS = \
+  a-intnam.ads<a-intnam-linux-alpha.ads \
+  s-inmaop.adb<s-inmaop-posix.adb \
+  s-intman.adb<s-intman-posix.adb \
+  s-osinte.ads<s-osinte-linux-alpha.ads \
+  s-osinte.adb<s-osinte-posix.adb \
+  s-osprim.adb<s-osprim-posix.adb \
+  s-taprop.adb<s-taprop-linux.adb \
+  s-tpopsp.adb<s-tpopsp-posix-foreign.adb \
+  s-taspri.ads<s-taspri-linux.ads \
+  system.ads<system-linux-ia64.ads
+
+  TOOLS_TARGET_PAIRS =  \
+    mlib-tgt.adb<mlib-tgt-linux.adb \
+    indepsw.adb<indepsw-linux.adb
+
+  MISCLIB=
+  THREADSLIB=-lpthread
+  GNATLIB_SHARED=gnatlib-shared-dual
+  PREFIX_OBJS=$(PREFIX_REAL_OBJS)
+  LIBRARY_VERSION := $(LIB_VERSION)
+endif
+
 ifeq ($(strip $(filter-out %x86_64 linux%,$(arch) $(osys))),)
   LIBGNAT_TARGET_PAIRS = \
   a-intnam.ads<a-intnam-linux.ads \
diff --git a/gcc/ada/a-intnam-linux-alpha.ads b/gcc/ada/a-intnam-linux-alpha.ads
new file mode 100644
index 00000000000..c05efbfeaa1
--- /dev/null
+++ b/gcc/ada/a-intnam-linux-alpha.ads
@@ -0,0 +1,145 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS               --
+--                                                                          --
+--                   A D A . I N T E R R U P T S . N A M E S                --
+--                                                                          --
+--                                  S p e c                                 --
+--                                                                          --
+--           Copyright (C) 1991-2005 Free Software Foundation, Inc.         --
+--                                                                          --
+-- GNARL is free software; you can  redistribute it  and/or modify it under --
+-- terms of the  GNU General Public License as published  by the Free Soft- --
+-- ware  Foundation;  either version 2,  or (at your option) any later ver- --
+-- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
+-- for  more details.  You should have  received  a copy of the GNU General --
+-- Public License  distributed with GNARL; see file COPYING.  If not, write --
+-- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
+-- MA 02111-1307, USA.                                                      --
+--                                                                          --
+-- As a special exception,  if other files  instantiate  generics from this --
+-- unit, or you link  this unit with other files  to produce an executable, --
+-- this  unit  does not  by itself cause  the resulting  executable  to  be --
+-- covered  by the  GNU  General  Public  License.  This exception does not --
+-- however invalidate  any other reasons why  the executable file  might be --
+-- covered by the  GNU Public License.                                      --
+--                                                                          --
+-- GNARL was developed by the GNARL team at Florida State University.       --
+-- Extensive contributions were provided by Ada Core Technologies, Inc.     --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This is the Alpha GNU/Linux version of this package.
+--
+--  This target-dependent package spec contains names of interrupts
+--  supported by the local system.
+
+with System.OS_Interface;
+--  used for names of interrupts
+
+package Ada.Interrupts.Names is
+
+   --  Beware that the mapping of names to signals may be
+   --  many-to-one.  There may be aliases.  Also, for all
+   --  signal names that are not supported on the current system
+   --  the value of the corresponding constant will be zero.
+
+   SIGHUP : constant Interrupt_ID :=
+     System.OS_Interface.SIGHUP;      --  hangup
+
+   SIGINT : constant Interrupt_ID :=
+     System.OS_Interface.SIGINT;      --  interrupt (rubout)
+
+   SIGQUIT : constant Interrupt_ID :=
+     System.OS_Interface.SIGQUIT;     --  quit (ASCD FS)
+
+   SIGILL : constant Interrupt_ID :=
+     System.OS_Interface.SIGILL;      --  illegal instruction (not reset)
+
+   SIGTRAP : constant Interrupt_ID :=
+     System.OS_Interface.SIGTRAP;     --  trace trap (not reset)
+
+   SIGIOT : constant Interrupt_ID :=
+     System.OS_Interface.SIGIOT;      --  IOT instruction
+
+   SIGABRT : constant Interrupt_ID := --  used by abort,
+     System.OS_Interface.SIGABRT;     --  replace SIGIOT in the  future
+
+   SIGFPE : constant Interrupt_ID :=
+     System.OS_Interface.SIGFPE;      --  floating point exception
+
+   SIGKILL : constant Interrupt_ID :=
+     System.OS_Interface.SIGKILL;     --  kill (cannot be caught or ignored)
+
+   SIGBUS : constant Interrupt_ID :=
+     System.OS_Interface.SIGBUS;      --  bus error
+
+   SIGSEGV : constant Interrupt_ID :=
+     System.OS_Interface.SIGSEGV;     --  segmentation violation
+
+   SIGPIPE : constant Interrupt_ID := --  write on a pipe with
+     System.OS_Interface.SIGPIPE;     --  no one to read it
+
+   SIGALRM : constant Interrupt_ID :=
+     System.OS_Interface.SIGALRM;     --  alarm clock
+
+   SIGTERM : constant Interrupt_ID :=
+     System.OS_Interface.SIGTERM;     --  software termination signal from kill
+
+   SIGURG : constant Interrupt_ID :=
+     System.OS_Interface.SIGURG;      --  urgent condition on IO channel
+
+   SIGSTOP : constant Interrupt_ID :=
+     System.OS_Interface.SIGSTOP;     --  stop (cannot be caught or ignored)
+
+   SIGTSTP : constant Interrupt_ID :=
+     System.OS_Interface.SIGTSTP;     --  user stop requested from tty
+
+   SIGCONT : constant Interrupt_ID :=
+     System.OS_Interface.SIGCONT;     --  stopped process has been continued
+
+   SIGCLD : constant Interrupt_ID :=
+     System.OS_Interface.SIGCLD;      --  child status change
+
+   SIGCHLD : constant Interrupt_ID :=
+     System.OS_Interface.SIGCHLD;     --  4.3BSD's/POSIX name for SIGCLD
+
+   SIGTTIN : constant Interrupt_ID :=
+     System.OS_Interface.SIGTTIN;     --  background tty read attempted
+
+   SIGTTOU : constant Interrupt_ID :=
+     System.OS_Interface.SIGTTOU;     --  background tty write attempted
+
+   SIGIO : constant Interrupt_ID :=   --  input/output possible,
+     System.OS_Interface.SIGIO;       --  SIGPOLL alias (Solaris)
+
+   SIGPOLL : constant Interrupt_ID :=
+     System.OS_Interface.SIGPOLL;     --  pollable event occurred
+
+   SIGXCPU : constant Interrupt_ID :=
+     System.OS_Interface.SIGXCPU;     --  CPU time limit exceeded
+
+   SIGXFSZ : constant Interrupt_ID :=
+     System.OS_Interface.SIGXFSZ;     --  filesize limit exceeded
+
+   SIGVTALRM : constant Interrupt_ID :=
+     System.OS_Interface.SIGVTALRM;   --  virtual timer expired
+
+   SIGPROF : constant Interrupt_ID :=
+     System.OS_Interface.SIGPROF;     --  profiling timer expired
+
+   SIGWINCH : constant Interrupt_ID :=
+     System.OS_Interface.SIGWINCH;    --  window size change
+
+   SIGPWR : constant Interrupt_ID :=
+     System.OS_Interface.SIGPWR;        --  Power failure
+
+   SIGUSR1 : constant Interrupt_ID :=
+     System.OS_Interface.SIGUSR1;     --  user defined signal 1
+
+   SIGUSR2 : constant Interrupt_ID :=
+     System.OS_Interface.SIGUSR2;     --  user defined signal 2
+
+end Ada.Interrupts.Names;
diff --git a/gcc/ada/s-osinte-linux-alpha.ads b/gcc/ada/s-osinte-linux-alpha.ads
new file mode 100644
index 00000000000..4b56b9def66
--- /dev/null
+++ b/gcc/ada/s-osinte-linux-alpha.ads
@@ -0,0 +1,500 @@
+------------------------------------------------------------------------------
+--                                                                          --
+--                GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS               --
+--                                                                          --
+--                   S Y S T E M . O S _ I N T E R F A C E                  --
+--                                                                          --
+--                                  S p e c                                 --
+--                                                                          --
+--             Copyright (C) 1991-1994, Florida State University            --
+--             Copyright (C) 1995-2005, Free Software Foundation, Inc.      --
+--                                                                          --
+-- GNARL is free software; you can  redistribute it  and/or modify it under --
+-- terms of the  GNU General Public License as published  by the Free Soft- --
+-- ware  Foundation;  either version 2,  or (at your option) any later ver- --
+-- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
+-- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
+-- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
+-- for  more details.  You should have  received  a copy of the GNU General --
+-- Public License  distributed with GNARL; see file COPYING.  If not, write --
+-- to  the Free Software Foundation,  59 Temple Place - Suite 330,  Boston, --
+-- MA 02111-1307, USA.                                                      --
+--                                                                          --
+-- As a special exception,  if other files  instantiate  generics from this --
+-- unit, or you link  this unit with other files  to produce an executable, --
+-- this  unit  does not  by itself cause  the resulting  executable  to  be --
+-- covered  by the  GNU  General  Public  License.  This exception does not --
+-- however invalidate  any other reasons why  the executable file  might be --
+-- covered by the  GNU Public License.                                      --
+--                                                                          --
+-- GNARL was developed by the GNARL team at Florida State University.       --
+-- Extensive contributions were provided by Ada Core Technologies, Inc.     --
+--                                                                          --
+------------------------------------------------------------------------------
+
+--  This is a GNU/Linux (GNU/LinuxThreads) version of this package
+
+--  This package encapsulates all direct interfaces to OS services
+--  that are needed by children of System.
+
+--  PLEASE DO NOT add any with-clauses to this package or remove the pragma
+--  Preelaborate. This package is designed to be a bottom-level (leaf) package.
+
+with Interfaces.C;
+with Unchecked_Conversion;
+
+package System.OS_Interface is
+   pragma Preelaborate;
+
+   pragma Linker_Options ("-lpthread");
+
+   subtype int            is Interfaces.C.int;
+   subtype char           is Interfaces.C.char;
+   subtype short          is Interfaces.C.short;
+   subtype long           is Interfaces.C.long;
+   subtype unsigned       is Interfaces.C.unsigned;
+   subtype unsigned_short is Interfaces.C.unsigned_short;
+   subtype unsigned_long  is Interfaces.C.unsigned_long;
+   subtype unsigned_char  is Interfaces.C.unsigned_char;
+   subtype plain_char     is Interfaces.C.plain_char;
+   subtype size_t         is Interfaces.C.size_t;
+
+   -----------
+   -- Errno --
+   -----------
+
+   function errno return int;
+   pragma Import (C, errno, "__get_errno");
+
+   EAGAIN    : constant := 35;
+   EINTR     : constant := 4;
+   EINVAL    : constant := 22;
+   ENOMEM    : constant := 12;
+   EPERM     : constant := 1;
+   ETIMEDOUT : constant := 60;
+
+   -------------
+   -- Signals --
+   -------------
+
+   Max_Interrupt : constant := 63;
+   type Signal is new int range 0 .. Max_Interrupt;
+   for Signal'Size use int'Size;
+
+   SIGHUP     : constant := 1; --  hangup
+   SIGINT     : constant := 2; --  interrupt (rubout)
+   SIGQUIT    : constant := 3; --  quit (ASCD FS)
+   SIGILL     : constant := 4; --  illegal instruction (not reset)
+   SIGTRAP    : constant := 5; --  trace trap (not reset)
+   SIGIOT     : constant := 6; --  IOT instruction
+   SIGABRT    : constant := 6; --  used by abort, replace SIGIOT in the  future
+   SIGFPE     : constant := 8; --  floating point exception
+   SIGKILL    : constant := 9; --  kill (cannot be caught or ignored)
+   SIGBUS     : constant := 10; --  bus error
+   SIGSEGV    : constant := 11; --  segmentation violation
+   SIGPIPE    : constant := 13; --  write on a pipe with no one to read it
+   SIGALRM    : constant := 14; --  alarm clock
+   SIGTERM    : constant := 15; --  software termination signal from kill
+   SIGURG     : constant := 16; --  urgent condition on IO channel
+   SIGSTOP    : constant := 17; --  stop (cannot be caught or ignored)
+   SIGTSTP    : constant := 18; --  user stop requested from tty
+   SIGCONT    : constant := 19; --  stopped process has been continued
+   SIGCLD     : constant := 20; --  alias for SIGCHLD
+   SIGCHLD    : constant := 20; --  child status change
+   SIGTTIN    : constant := 21; --  background tty read attempted
+   SIGTTOU    : constant := 22; --  background tty write attempted
+   SIGIO      : constant := 23; --  I/O now possible (4.2 BSD)
+   SIGPOLL    : constant := 23; --  pollable event occurred
+   SIGXCPU    : constant := 24; --  CPU time limit exceeded
+   SIGXFSZ    : constant := 25; --  filesize limit exceeded
+   SIGVTALRM  : constant := 26; --  virtual timer expired
+   SIGPROF    : constant := 27; --  profiling timer expired
+   SIGWINCH   : constant := 28; --  window size change
+   SIGPWR     : constant := 29; --  power-fail restart
+   SIGUSR1    : constant := 30; --  user defined signal 1
+   SIGUSR2    : constant := 31; --  user defined signal 2
+
+   SIGLTHRRES : constant := 32; --  GNU/LinuxThreads restart signal
+   SIGLTHRCAN : constant := 33; --  GNU/LinuxThreads cancel signal
+   SIGLTHRDBG : constant := 34; --  GNU/LinuxThreads debugger signal
+
+   SIGADAABORT : constant := SIGABRT;
+   --  Change this if you want to use another signal for task abort.
+   --  SIGTERM might be a good one.
+
+   type Signal_Set is array (Natural range <>) of Signal;
+
+   Unmasked    : constant Signal_Set := (
+      SIGTRAP,
+      --  To enable debugging on multithreaded applications, mark SIGTRAP to
+      --  be kept unmasked.
+
+      SIGBUS,
+
+      SIGTTIN, SIGTTOU, SIGTSTP,
+      --  Keep these three signals unmasked so that background processes
+      --  and IO behaves as normal "C" applications
+
+      SIGPROF,
+      --  To avoid confusing the profiler
+
+      SIGKILL, SIGSTOP,
+      --  These two signals actually cannot be masked;
+      --  POSIX simply won't allow it.
+
+      SIGLTHRRES, SIGLTHRCAN, SIGLTHRDBG);
+      --  These three signals are used by GNU/LinuxThreads starting from
+      --  glibc 2.1 (future 2.2).
+
+   Reserved    : constant Signal_Set := (SIGKILL, SIGSTOP);
+
+   type sigset_t is private;
+
+   function sigaddset (set : access sigset_t; sig : Signal) return int;
+   pragma Import (C, sigaddset, "sigaddset");
+
+   function sigdelset (set : access sigset_t; sig : Signal) return int;
+   pragma Import (C, sigdelset, "sigdelset");
+
+   function sigfillset (set : access sigset_t) return int;
+   pragma Import (C, sigfillset, "sigfillset");
+
+   function sigismember (set : access sigset_t; sig : Signal) return int;
+   pragma Import (C, sigismember, "sigismember");
+
+   function sigemptyset (set : access sigset_t) return int;
+   pragma Import (C, sigemptyset, "sigemptyset");
+
+   type union_type_3 is new String (1 .. 116);
+   type siginfo_t is record
+      si_signo : int;
+      si_code  : int;
+      si_errno : int;
+      X_data   : union_type_3;
+   end record;
+   pragma Convention (C, siginfo_t);
+
+   type struct_sigaction is record
+      sa_handler   : System.Address;
+      sa_mask      : sigset_t;
+      sa_flags     : unsigned_long;
+   end record;
+   pragma Convention (C, struct_sigaction);
+   type struct_sigaction_ptr is access all struct_sigaction;
+
+   type Machine_State is record
+     dummy : unsigned_long;
+   end record;
+   type Machine_State_Ptr is access all Machine_State;
+
+   SA_SIGINFO  : constant := 16#40#;
+
+   SIG_BLOCK   : constant := 0;
+   SIG_UNBLOCK : constant := 1;
+   SIG_SETMASK : constant := 2;
+
+   SIG_DFL : constant := 0;
+   SIG_IGN : constant := 1;
+
+   function sigaction
+     (sig  : Signal;
+      act  : struct_sigaction_ptr;
+      oact : struct_sigaction_ptr) return int;
+   pragma Import (C, sigaction, "sigaction");
+
+   ----------
+   -- Time --
+   ----------
+
+   type timespec is private;
+
+   function To_Duration (TS : timespec) return Duration;
+   pragma Inline (To_Duration);
+
+   function To_Timespec (D : Duration) return timespec;
+   pragma Inline (To_Timespec);
+
+   type struct_timeval is private;
+
+   function To_Duration (TV : struct_timeval) return Duration;
+   pragma Inline (To_Duration);
+
+   function To_Timeval (D : Duration) return struct_timeval;
+   pragma Inline (To_Timeval);
+
+   function gettimeofday
+     (tv : access struct_timeval;
+      tz : System.Address := System.Null_Address) return int;
+   pragma Import (C, gettimeofday, "gettimeofday");
+
+   function sysconf (name : int) return long;
+   pragma Import (C, sysconf);
+
+   SC_CLK_TCK : constant := 2;
+
+   -------------------------
+   -- Priority Scheduling --
+   -------------------------
+
+   SCHED_OTHER : constant := 0;
+   SCHED_FIFO  : constant := 1;
+   SCHED_RR    : constant := 2;
+
+   -------------
+   -- Process --
+   -------------
+
+   type pid_t is private;
+
+   function kill (pid : pid_t; sig : Signal) return int;
+   pragma Import (C, kill, "kill");
+
+   function getpid return pid_t;
+   pragma Import (C, getpid, "getpid");
+
+   -------------
+   -- Threads --
+   -------------
+
+   type Thread_Body is access
+     function (arg : System.Address) return System.Address;
+
+   function Thread_Body_Access is new
+     Unchecked_Conversion (System.Address, Thread_Body);
+
+   type pthread_t is new unsigned_long;
+   subtype Thread_Id        is pthread_t;
+
+   function To_pthread_t is new Unchecked_Conversion
+     (unsigned_long, pthread_t);
+
+   type pthread_mutex_t     is limited private;
+   type pthread_cond_t      is limited private;
+   type pthread_attr_t      is limited private;
+   type pthread_mutexattr_t is limited private;
+   type pthread_condattr_t  is limited private;
+   type pthread_key_t       is private;
+
+   PTHREAD_CREATE_DETACHED : constant := 1;
+
+   -----------
+   -- Stack --
+   -----------
+
+   function Get_Stack_Base (thread : pthread_t) return Address;
+   pragma Inline (Get_Stack_Base);
+   --  This is a dummy procedure to share some GNULLI files
+
+   ---------------------------------------
+   -- Nonstandard Thread Initialization --
+   ---------------------------------------
+
+   procedure pthread_init;
+   pragma Inline (pthread_init);
+   --  This is a dummy procedure to share some GNULLI files
+
+   -------------------------
+   -- POSIX.1c  Section 3 --
+   -------------------------
+
+   function sigwait (set : access sigset_t; sig : access Signal) return int;
+   pragma Import (C, sigwait, "sigwait");
+
+   function pthread_kill (thread : pthread_t; sig : Signal) return int;
+   pragma Import (C, pthread_kill, "pthread_kill");
+
+   type sigset_t_ptr is access all sigset_t;
+
+   function pthread_sigmask
+     (how  : int;
+      set  : sigset_t_ptr;
+      oset : sigset_t_ptr) return int;
+   pragma Import (C, pthread_sigmask, "pthread_sigmask");
+
+   --------------------------
+   -- POSIX.1c  Section 11 --
+   --------------------------
+
+   function pthread_mutexattr_init
+     (attr : access pthread_mutexattr_t) return int;
+   pragma Import (C, pthread_mutexattr_init, "pthread_mutexattr_init");
+
+   function pthread_mutexattr_destroy
+     (attr : access pthread_mutexattr_t) return int;
+   pragma Import (C, pthread_mutexattr_destroy, "pthread_mutexattr_destroy");
+
+   function pthread_mutex_init
+     (mutex : access pthread_mutex_t;
+      attr  : access pthread_mutexattr_t) return int;
+   pragma Import (C, pthread_mutex_init, "pthread_mutex_init");
+
+   function pthread_mutex_destroy (mutex : access pthread_mutex_t) return int;
+   pragma Import (C, pthread_mutex_destroy, "pthread_mutex_destroy");
+
+   function pthread_mutex_lock (mutex : access pthread_mutex_t) return int;
+   pragma Import (C, pthread_mutex_lock, "pthread_mutex_lock");
+
+   function pthread_mutex_unlock (mutex : access pthread_mutex_t) return int;
+   pragma Import (C, pthread_mutex_unlock, "pthread_mutex_unlock");
+
+   function pthread_condattr_init
+     (attr : access pthread_condattr_t) return int;
+   pragma Import (C, pthread_condattr_init, "pthread_condattr_init");
+
+   function pthread_condattr_destroy
+     (attr : access pthread_condattr_t) return int;
+   pragma Import (C, pthread_condattr_destroy, "pthread_condattr_destroy");
+
+   function pthread_cond_init
+     (cond : access pthread_cond_t;
+      attr : access pthread_condattr_t) return int;
+   pragma Import (C, pthread_cond_init, "pthread_cond_init");
+
+   function pthread_cond_destroy (cond : access pthread_cond_t) return int;
+   pragma Import (C, pthread_cond_destroy, "pthread_cond_destroy");
+
+   function pthread_cond_signal (cond : access pthread_cond_t) return int;
+   pragma Import (C, pthread_cond_signal, "pthread_cond_signal");
+
+   function pthread_cond_wait
+     (cond  : access pthread_cond_t;
+      mutex : access pthread_mutex_t) return int;
+   pragma Import (C, pthread_cond_wait, "pthread_cond_wait");
+
+   function pthread_cond_timedwait
+     (cond    : access pthread_cond_t;
+      mutex   : access pthread_mutex_t;
+      abstime : access timespec) return int;
+   pragma Import (C, pthread_cond_timedwait, "pthread_cond_timedwait");
+
+   --------------------------
+   -- POSIX.1c  Section 13 --
+   --------------------------
+
+   type struct_sched_param is record
+      sched_priority : int;  --  scheduling priority
+   end record;
+   pragma Convention (C, struct_sched_param);
+
+   function pthread_setschedparam
+     (thread : pthread_t;
+      policy : int;
+      param  : access struct_sched_param) return int;
+   pragma Import (C, pthread_setschedparam, "pthread_setschedparam");
+
+   function pthread_attr_setschedpolicy
+     (attr   : access pthread_attr_t;
+      policy : int) return int;
+   pragma Import
+     (C, pthread_attr_setschedpolicy, "pthread_attr_setschedpolicy");
+
+   function sched_yield return int;
+   pragma Import (C, sched_yield, "sched_yield");
+
+   ---------------------------
+   -- P1003.1c - Section 16 --
+   ---------------------------
+
+   function pthread_attr_init
+     (attributes : access pthread_attr_t) return int;
+   pragma Import (C, pthread_attr_init, "pthread_attr_init");
+
+   function pthread_attr_destroy
+     (attributes : access pthread_attr_t) return int;
+   pragma Import (C, pthread_attr_destroy, "pthread_attr_destroy");
+
+   function pthread_attr_setdetachstate
+     (attr        : access pthread_attr_t;
+      detachstate : int) return int;
+   pragma Import
+     (C, pthread_attr_setdetachstate, "pthread_attr_setdetachstate");
+
+   function pthread_attr_setstacksize
+     (attr      : access pthread_attr_t;
+      stacksize : size_t) return int;
+   pragma Import (C, pthread_attr_setstacksize, "pthread_attr_setstacksize");
+
+   function pthread_create
+     (thread        : access pthread_t;
+      attributes    : access pthread_attr_t;
+      start_routine : Thread_Body;
+      arg           : System.Address) return int;
+   pragma Import (C, pthread_create, "pthread_create");
+
+   procedure pthread_exit (status : System.Address);
+   pragma Import (C, pthread_exit, "pthread_exit");
+
+   function pthread_self return pthread_t;
+   pragma Import (C, pthread_self, "pthread_self");
+
+   --------------------------
+   -- POSIX.1c  Section 17 --
+   --------------------------
+
+   function pthread_setspecific
+     (key   : pthread_key_t;
+      value : System.Address) return int;
+   pragma Import (C, pthread_setspecific, "pthread_setspecific");
+
+   function pthread_getspecific (key : pthread_key_t) return System.Address;
+   pragma Import (C, pthread_getspecific, "pthread_getspecific");
+
+   type destructor_pointer is access procedure (arg : System.Address);
+
+   function pthread_key_create
+     (key        : access pthread_key_t;
+      destructor : destructor_pointer) return int;
+   pragma Import (C, pthread_key_create, "pthread_key_create");
+
+private
+
+   type sigset_t is record
+      dum0, dum1, dum2, dum3, dum4, dum5, dum6, dum7 : unsigned_long;
+      dum8, dum9, dum10, dum11, dum12, dum13, dum14, dum15 : unsigned_long;
+   end record;
+   pragma Convention (C, sigset_t);
+
+   type pid_t is new int;
+
+   type time_t is new long;
+
+   type timespec is record
+      tv_sec  : time_t;
+      tv_nsec : long;
+   end record;
+   pragma Convention (C, timespec);
+
+   type struct_timeval is record
+      tv_sec  : time_t;
+      tv_usec : time_t;
+   end record;
+   pragma Convention (C, struct_timeval);
+
+   type pthread_attr_t is record
+      dum0, dum1, dum2, dum3, dum4, dum5, dum6 : unsigned_long;
+   end record;
+   pragma Convention (C, pthread_attr_t);
+
+   type pthread_condattr_t is record
+      dummy : int;
+   end record;
+   pragma Convention (C, pthread_condattr_t);
+
+   type pthread_mutexattr_t is record
+      mutexkind : int;
+   end record;
+   pragma Convention (C, pthread_mutexattr_t);
+
+   type pthread_mutex_t is record
+      dum0, dum1, dum2, dum3, dum4 : unsigned_long;
+   end record;
+   pragma Convention (C, pthread_mutex_t);
+
+   type pthread_cond_t is record
+      dum0, dum1, dum2, dum3, dum4, dum5 : unsigned_long;
+   end record;
+   pragma Convention (C, pthread_cond_t);
+
+   type pthread_key_t is new unsigned;
+
+end System.OS_Interface;