1 ------------------------------------------------------------------------------
3 -- GNU ADA RUN-TIME LIBRARY (GNARL) COMPONENTS --
5 -- S Y S T E M . L I N U X --
9 -- Copyright (C) 2009-2020, Free Software Foundation, Inc. --
11 -- GNARL is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
18 -- As a special exception under Section 7 of GPL version 3, you are granted --
19 -- additional permissions described in the GCC Runtime Library Exception, --
20 -- version 3.1, as published by the Free Software Foundation. --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
27 ------------------------------------------------------------------------------
29 -- This is the RISC-V version of this package
31 -- This package encapsulates cpu specific differences between implementations
32 -- of GNU/Linux, in order to share s-osinte-linux.ads.
34 -- PLEASE DO NOT add any with-clauses to this package or remove the pragma
35 -- Preelaborate. This package is designed to be a bottom-level (leaf) package
39 package System
.Linux
is
46 subtype int
is Interfaces
.C
.int
;
47 subtype long
is Interfaces
.C
.long
;
48 subtype suseconds_t
is Interfaces
.C
.long
;
49 subtype time_t
is Interfaces
.C
.long
;
50 subtype clockid_t
is Interfaces
.C
.int
;
52 type timespec
is record
56 pragma Convention
(C
, timespec
);
58 type timeval
is record
60 tv_usec
: suseconds_t
;
62 pragma Convention
(C
, timeval
);
68 EAGAIN
: constant := 11;
69 EINTR
: constant := 4;
70 EINVAL
: constant := 22;
71 ENOMEM
: constant := 12;
72 EPERM
: constant := 1;
73 ETIMEDOUT
: constant := 110;
79 SIGHUP
: constant := 1; -- hangup
80 SIGINT
: constant := 2; -- interrupt (rubout)
81 SIGQUIT
: constant := 3; -- quit (ASCD FS)
82 SIGILL
: constant := 4; -- illegal instruction (not reset)
83 SIGTRAP
: constant := 5; -- trace trap (not reset)
84 SIGIOT
: constant := 6; -- IOT instruction
85 SIGABRT
: constant := 6; -- used by abort, replace SIGIOT in the future
86 SIGBUS
: constant := 7; -- bus error
87 SIGFPE
: constant := 8; -- floating point exception
88 SIGKILL
: constant := 9; -- kill (cannot be caught or ignored)
89 SIGUSR1
: constant := 10; -- user defined signal 1
90 SIGSEGV
: constant := 11; -- segmentation violation
91 SIGUSR2
: constant := 12; -- user defined signal 2
92 SIGPIPE
: constant := 13; -- write on a pipe with no one to read it
93 SIGALRM
: constant := 14; -- alarm clock
94 SIGTERM
: constant := 15; -- software termination signal from kill
95 SIGSTKFLT
: constant := 16; -- coprocessor stack fault (Linux)
96 SIGCLD
: constant := 17; -- alias for SIGCHLD
97 SIGCHLD
: constant := 17; -- child status change
98 SIGCONT
: constant := 18; -- stopped process has been continued
99 SIGSTOP
: constant := 19; -- stop (cannot be caught or ignored)
100 SIGTSTP
: constant := 20; -- user stop requested from tty
101 SIGTTIN
: constant := 21; -- background tty read attempted
102 SIGTTOU
: constant := 22; -- background tty write attempted
103 SIGURG
: constant := 23; -- urgent condition on IO channel
104 SIGXCPU
: constant := 24; -- CPU time limit exceeded
105 SIGXFSZ
: constant := 25; -- filesize limit exceeded
106 SIGVTALRM
: constant := 26; -- virtual timer expired
107 SIGPROF
: constant := 28; -- profiling timer expired
108 SIGWINCH
: constant := 28; -- window size change
109 SIGPOLL
: constant := 29; -- pollable event occurred
110 SIGIO
: constant := 29; -- I/O now possible (4.2 BSD)
111 SIGPWR
: constant := 30; -- power-fail restart
112 SIGSYS
: constant := 31; -- bad system call
113 SIG32
: constant := 32; -- glibc internal signal
114 SIG33
: constant := 33; -- glibc internal signal
115 SIG34
: constant := 34; -- glibc internal signal
117 -- These don't exist for Linux/RISC-V. The constants are present
118 -- so that we can continue to use a-intnam-linux.ads.
119 SIGLOST
: constant := 0; -- File lock lost
120 SIGUNUSED
: constant := 0; -- unused signal (GNU/Linux)
121 SIGEMT
: constant := 0; -- EMT
123 -- struct_sigaction offsets
125 sa_handler_pos
: constant := 0;
126 sa_mask_pos
: constant := long
'Size / 8;
127 sa_flags_pos
: constant := long
'Size / 8 + 128;
129 SA_SIGINFO
: constant := 16#
04#
;
130 SA_ONSTACK
: constant := 16#
08000000#
;