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+------------------------------------------------------------------------------
+-- --
+-- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
+-- --
+-- S Y S T E M . L I N U X --
+-- --
+-- S p e c --
+-- --
+-- Copyright (C) 2009, 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 3, or (at your option) any later ver- --
+-- sion. GNAT 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. --
+-- --
+-- As a special exception under Section 7 of GPL version 3, you are granted --
+-- additional permissions described in the GCC Runtime Library Exception, --
+-- version 3.1, as published by the Free Software Foundation. --
+-- --
+-- You should have received a copy of the GNU General Public License and --
+-- a copy of the GCC Runtime Library Exception along with this program; --
+-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
+-- <http://www.gnu.org/licenses/>. --
+-- --
+-- --
+------------------------------------------------------------------------------
+
+-- This is the default version of this package
+
+-- This package encapsulates cpu specific differences between implementations
+-- of GNU/Linux, in order to share s-osinte-linux.ads.
+
+-- 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
+
+package System.Linux is
+ pragma Preelaborate;
+
+ -----------
+ -- Errno --
+ -----------
+
+ EAGAIN : constant := 11;
+ EINTR : constant := 4;
+ EINVAL : constant := 22;
+ ENOMEM : constant := 12;
+ EPERM : constant := 1;
+ ETIMEDOUT : constant := 110;
+
+ -------------
+ -- Signals --
+ -------------
+
+ 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 := 7; -- 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
+ SIGUSR1 : constant := 10; -- user defined signal 1
+ SIGUSR2 : constant := 12; -- user defined signal 2
+ SIGCLD : constant := 17; -- alias for SIGCHLD
+ SIGCHLD : constant := 17; -- child status change
+ SIGPWR : constant := 30; -- power-fail restart
+ SIGWINCH : constant := 28; -- window size change
+ SIGURG : constant := 23; -- urgent condition on IO channel
+ SIGPOLL : constant := 29; -- pollable event occurred
+ SIGIO : constant := 29; -- I/O now possible (4.2 BSD)
+ SIGLOST : constant := 29; -- File lock lost
+ SIGSTOP : constant := 19; -- stop (cannot be caught or ignored)
+ SIGTSTP : constant := 20; -- user stop requested from tty
+ SIGCONT : constant := 18; -- stopped process has been continued
+ SIGTTIN : constant := 21; -- background tty read attempted
+ SIGTTOU : constant := 22; -- background tty write attempted
+ SIGVTALRM : constant := 26; -- virtual timer expired
+ SIGPROF : constant := 27; -- profiling timer expired
+ SIGXCPU : constant := 24; -- CPU time limit exceeded
+ SIGXFSZ : constant := 25; -- filesize limit exceeded
+ SIGUNUSED : constant := 31; -- unused signal (GNU/Linux)
+ SIGSTKFLT : constant := 16; -- coprocessor stack fault (Linux)
+ SIGLTHRRES : constant := 32; -- GNU/LinuxThreads restart signal
+ SIGLTHRCAN : constant := 33; -- GNU/LinuxThreads cancel signal
+ SIGLTHRDBG : constant := 34; -- GNU/LinuxThreads debugger signal
+
+ -- struct_sigaction offsets
+
+ sa_mask_pos : constant := Standard'Address_Size / 8;
+ sa_flags_pos : constant := 128 + sa_mask_pos;
+
+ SA_SIGINFO : constant := 16#04#;
+ SA_ONSTACK : constant := 16#08000000#;
+
+ type struct_pthread_fast_lock is record
+ status : Long_Integer;
+ spinlock : Integer;
+ end record;
+ pragma Convention (C, struct_pthread_fast_lock);
+
+ type pthread_mutex_t is record
+ m_reserved : Integer;
+ m_count : Integer;
+ m_owner : System.Address;
+ m_kind : Integer;
+ m_lock : struct_pthread_fast_lock;
+ end record;
+ pragma Convention (C, pthread_mutex_t);
+
+end System.Linux;