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Diffstat (limited to 'gcc/ada/56osinte.ads')
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diff --git a/gcc/ada/56osinte.ads b/gcc/ada/56osinte.ads new file mode 100644 index 00000000000..c6bcbeb9ad4 --- /dev/null +++ b/gcc/ada/56osinte.ads @@ -0,0 +1,584 @@ +------------------------------------------------------------------------------ +-- -- +-- 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) 2002-2003 Ada Core Technologies, 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 LynxOS (POSIX Threads) 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 Elaborate_Body. +-- It is designed to be a bottom-level (leaf) package. + +with Interfaces.C; +package System.OS_Interface is + pragma Preelaborate; + + pragma Linker_Options ("-mthreads"); + -- Selects the POSIX 1.c runtime, rather than the non-threading runtime + -- or the deprecated legacy threads library. The -mthreads flag is + -- defined in patch.LynxOS and matches the definition for Lynx's gcc. + + subtype int is Interfaces.C.int; + 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 := 11; + EINTR : constant := 4; + EINVAL : constant := 22; + ENOMEM : constant := 12; + ETIMEDOUT : constant := 60; + + ------------- + -- Signals -- + ------------- + + Max_Interrupt : constant := 63; + + -- Max_Interrupt is the number of OS signals, as defined in: + -- + -- /usr/include/sys/signal.h + -- + -- + -- The lowest numbered signal is 1, but 0 is a valid argument to some + -- library functions, eg. kill(2). However, 0 is not just another + -- signal: For instance 'I in Signal' and similar should be used with + -- caution. + + 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) + SIGBRK : constant := 6; -- break + SIGIOT : constant := 6; -- IOT instruction + SIGABRT : constant := 6; -- used by abort, replace SIGIOT in future + SIGCORE : constant := 7; -- kill with core dump + SIGEMT : constant := 7; -- EMT instruction + 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 + SIGSYS : constant := 12; -- bad argument to system call + 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 possible (Solaris SIGPOLL alias) + SIGPOLL : constant := 23; -- pollable event occurred + SIGTHREADKILL : constant := 24; -- Reserved by LynxOS runtime + 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 + SIGLOST : constant := 29; -- SUN 4.1 compatibility + SIGUSR1 : constant := 30; -- user defined signal 1 + SIGUSR2 : constant := 31; -- user defined signal 2 + + SIGPRIO : constant := 32; + -- sent to a process with its priority or group is changed + + 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, SIGTTIN, SIGTTOU, SIGTSTP, SIGPROF, SIGTHREADKILL); + Reserved : constant Signal_Set := (SIGABRT, SIGKILL, SIGSTOP, SIGPRIO); + + 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 struct_sigaction is record + sa_handler : System.Address; + sa_mask : sigset_t; + sa_flags : int; + end record; + pragma Convention (C, struct_sigaction); + type struct_sigaction_ptr is access all struct_sigaction; + + 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 -- + ---------- + + Time_Slice_Supported : constant Boolean := True; + -- Indicates whether time slicing is supported + + type timespec is private; + + type clockid_t is private; + + CLOCK_REALTIME : constant clockid_t; + + function clock_gettime + (clock_id : clockid_t; + tp : access timespec) return int; + pragma Import (C, clock_gettime, "clock_gettime"); + + function clock_getres + (clock_id : clockid_t; + res : access timespec) return int; + pragma Import (C, clock_getres, "clock_getres"); + + function To_Duration (TS : timespec) return Duration; + pragma Inline (To_Duration); + + function To_Timespec (D : Duration) return timespec; + pragma Inline (To_Timespec); + + type struct_timezone is record + tz_minuteswest : int; + tz_dsttime : int; + end record; + pragma Convention (C, struct_timezone); + type struct_timezone_ptr is access all struct_timezone; + + type struct_timeval is private; + -- This is needed on systems that do not have clock_gettime() + -- but do have gettimeofday(). + + function To_Duration (TV : struct_timeval) return Duration; + pragma Inline (To_Duration); + + function To_Timeval (D : Duration) return struct_timeval; + pragma Inline (To_Timeval); + + ------------------------- + -- Priority Scheduling -- + ------------------------- + + SCHED_FIFO : constant := 16#200000#; + SCHED_RR : constant := 16#100000#; + SCHED_OTHER : constant := 16#400000#; + + ------------- + -- 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"); + + --------- + -- LWP -- + --------- + + function lwp_self return System.Address; + pragma Import (C, lwp_self, "pthread_self"); + + ------------- + -- Threads -- + ------------- + + type Thread_Body is access + function (arg : System.Address) return System.Address; + type pthread_t is private; + subtype Thread_Id is 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; + PTHREAD_CREATE_JOINABLE : constant := 0; + + ----------- + -- Stack -- + ----------- + + Stack_Base_Available : constant Boolean := False; + -- Indicates whether the stack base is available on this target. + + function Get_Stack_Base (thread : pthread_t) return Address; + pragma Inline (Get_Stack_Base); + -- Returns the stack base of the specified thread. + -- Only call this function when Stack_Base_Available is True. + + function Get_Page_Size return size_t; + function Get_Page_Size return Address; + pragma Import (C, Get_Page_Size, "getpagesize"); + -- Returns the size of a page, or 0 if this is not relevant on this + -- target + + PROT_NONE : constant := 1; + PROT_READ : constant := 2; + PROT_WRITE : constant := 4; + PROT_EXEC : constant := 8; + PROT_ALL : constant := PROT_READ + PROT_WRITE + PROT_EXEC; + + PROT_ON : constant := PROT_READ; + PROT_OFF : constant := PROT_ALL; + + function mprotect (addr : Address; len : size_t; prot : int) return int; + pragma Import (C, mprotect); + + ----------------------------------------- + -- Nonstandard Thread Initialization -- + ----------------------------------------- + + procedure 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 Inline (sigwait); + -- LynxOS has non standard 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"); + -- The behavior of pthread_sigmask on LynxOS requires + -- further investigation. + + ---------------------------- + -- 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"); + + Relative_Timed_Wait : constant Boolean := False; + -- pthread_cond_timedwait requires an absolute delay time + + -------------------------- + -- POSIX.1c Section 13 -- + -------------------------- + + PTHREAD_PRIO_NONE : constant := 0; + PTHREAD_PRIO_INHERIT : constant := 1; + PTHREAD_PRIO_PROTECT : constant := 2; + + function pthread_mutexattr_setprotocol + (attr : access pthread_mutexattr_t; + protocol : int) return int; + pragma Import (C, pthread_mutexattr_setprotocol); + + function pthread_mutexattr_setprioceiling + (attr : access pthread_mutexattr_t; + prioceiling : int) return int; + pragma Import (C, pthread_mutexattr_setprioceiling); + + type struct_sched_param is record + sched_priority : int; + end record; + + 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_setscope + (attr : access pthread_attr_t; + contentionscope : int) return int; + pragma Import (C, pthread_attr_setscope, "pthread_attr_setscope"); + + function pthread_attr_setinheritsched + (attr : access pthread_attr_t; + inheritsched : int) return int; + pragma Import (C, pthread_attr_setinheritsched); + + function pthread_attr_setschedpolicy + (attr : access pthread_attr_t; + policy : int) return int; + pragma Import (C, 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); + + function pthread_attr_setstacksize + (attr : access pthread_attr_t; + stacksize : size_t) return int; + pragma Import (C, 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 st_setspecific + (key : pthread_key_t; + value : System.Address) return int; + pragma Import (C, st_setspecific, "st_setspecific"); + + function st_getspecific + (key : pthread_key_t; + retval : System.Address) return int; + pragma Import (C, st_getspecific, "st_getspecific"); + + type destructor_pointer is access procedure (arg : System.Address); + + function st_keycreate + (destructor : destructor_pointer; + key : access pthread_key_t) return int; + pragma Import (C, st_keycreate, "st_keycreate"); + +private + + type sigset_t is record + X1, X2 : long; + end record; + pragma Convention (C, sigset_t); + + type pid_t is new long; + + type time_t is new long; + + type timespec is record + tv_sec : time_t; + tv_nsec : long; + end record; + pragma Convention (C, timespec); + + type clockid_t is new unsigned_char; + CLOCK_REALTIME : constant clockid_t := 0; + + type struct_timeval is record + tv_sec : time_t; + tv_usec : time_t; + end record; + pragma Convention (C, struct_timeval); + + type st_attr_t is record + stksize : int; + prio : int; + inheritsched : int; + state : int; + sched : int; + detachstate : int; + guardsize : int; + end record; + pragma Convention (C, st_attr_t); + + type pthread_attr_t is record + pthread_attr_magic : unsigned; + st : st_attr_t; + pthread_attr_scope : int; + end record; + pragma Convention (C, pthread_attr_t); + + type pthread_condattr_t is record + cv_magic : unsigned; + cv_pshared : unsigned; + end record; + pragma Convention (C, pthread_condattr_t); + + type pthread_mutexattr_t is record + m_flags : unsigned; + m_prio_c : int; + m_pshared : int; + end record; + pragma Convention (C, pthread_mutexattr_t); + + type tid_t is new short; + type pthread_t is new tid_t; + + type block_obj_t is new System.Address; + -- typedef struct _block_obj_s { + -- struct st_entry *b_head; + -- } block_obj_t; + + type pthread_mutex_t is record + m_flags : unsigned; + m_owner : tid_t; + m_wait : block_obj_t; + m_prio_c : int; + m_oldprio : int; + m_count : int; + m_referenced : int; + end record; + pragma Convention (C, pthread_mutex_t); + type pthread_mutex_t_ptr is access all pthread_mutex_t; + + type pthread_cond_t is record + cv_magic : unsigned; + cv_wait : block_obj_t; + cv_mutex : pthread_mutex_t_ptr; + cv_refcnt : int; + end record; + pragma Convention (C, pthread_cond_t); + + type pthread_key_t is new int; + +end System.OS_Interface; |