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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) 2009-2024, 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 RISC-V 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
with Interfaces.C;
with System.Parameters;
package System.Linux is
pragma Preelaborate;
----------
-- Time --
----------
subtype int is Interfaces.C.int;
subtype long is Interfaces.C.long;
subtype suseconds_t is Interfaces.C.long;
type time_t is range -2 ** (System.Parameters.time_t_bits - 1)
.. 2 ** (System.Parameters.time_t_bits - 1) - 1;
subtype clockid_t is Interfaces.C.int;
type timespec is record
tv_sec : time_t;
tv_nsec : long;
end record;
pragma Convention (C, timespec);
type timeval is record
tv_sec : time_t;
tv_usec : suseconds_t;
end record;
pragma Convention (C, timeval);
-----------
-- 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
SIGBUS : constant := 7; -- bus error
SIGFPE : constant := 8; -- floating point exception
SIGKILL : constant := 9; -- kill (cannot be caught or ignored)
SIGUSR1 : constant := 10; -- user defined signal 1
SIGSEGV : constant := 11; -- segmentation violation
SIGUSR2 : constant := 12; -- user defined signal 2
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
SIGSTKFLT : constant := 16; -- coprocessor stack fault (Linux)
SIGCLD : constant := 17; -- alias for SIGCHLD
SIGCHLD : constant := 17; -- child status change
SIGCONT : constant := 18; -- stopped process has been continued
SIGSTOP : constant := 19; -- stop (cannot be caught or ignored)
SIGTSTP : constant := 20; -- user stop requested from tty
SIGTTIN : constant := 21; -- background tty read attempted
SIGTTOU : constant := 22; -- background tty write attempted
SIGURG : constant := 23; -- urgent condition on IO channel
SIGXCPU : constant := 24; -- CPU time limit exceeded
SIGXFSZ : constant := 25; -- filesize limit exceeded
SIGVTALRM : constant := 26; -- virtual timer expired
SIGPROF : constant := 28; -- profiling timer expired
SIGWINCH : constant := 28; -- window size change
SIGPOLL : constant := 29; -- pollable event occurred
SIGIO : constant := 29; -- I/O now possible (4.2 BSD)
SIGPWR : constant := 30; -- power-fail restart
SIGSYS : constant := 31; -- bad system call
SIG32 : constant := 32; -- glibc internal signal
SIG33 : constant := 33; -- glibc internal signal
SIG34 : constant := 34; -- glibc internal signal
-- These don't exist for Linux/RISC-V. The constants are present
-- so that we can continue to use a-intnam-linux.ads.
SIGLOST : constant := 0; -- File lock lost
SIGUNUSED : constant := 0; -- unused signal (GNU/Linux)
SIGEMT : constant := 0; -- EMT
-- struct_sigaction offsets
sa_handler_pos : constant := 0;
sa_mask_pos : constant := long'Size / 8;
sa_flags_pos : constant := long'Size / 8 + 128;
SA_SIGINFO : constant := 16#04#;
SA_ONSTACK : constant := 16#08000000#;
end System.Linux;
|
