+++ /dev/null
-------------------------------------------------------------------------------
--- --
--- 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 --
--- --
--- $Revision: 1.1.16.1 $
--- --
--- Copyright (C) 1997-2001, 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 Solaris (FSU THREADS) version of this package.
-
--- This package includes 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 ("-lgthreads");
- pragma Linker_Options ("-lmalloc");
-
- 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 := 145;
-
- -------------
- -- Signals --
- -------------
-
- Max_Interrupt : constant := 45;
- 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
- 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
- SIGUSR1 : constant := 16; -- user defined signal 1
- SIGUSR2 : constant := 17; -- user defined signal 2
- SIGCLD : constant := 18; -- alias for SIGCHLD
- SIGCHLD : constant := 18; -- child status change
- SIGPWR : constant := 19; -- power-fail restart
- SIGWINCH : constant := 20; -- window size change
- SIGURG : constant := 21; -- urgent condition on IO channel
- SIGPOLL : constant := 22; -- pollable event occurred
- SIGIO : constant := 22; -- I/O possible (Solaris SIGPOLL alias)
- SIGSTOP : constant := 23; -- stop (cannot be caught or ignored)
- SIGTSTP : constant := 24; -- user stop requested from tty
- SIGCONT : constant := 25; -- stopped process has been continued
- SIGTTIN : constant := 26; -- background tty read attempted
- SIGTTOU : constant := 27; -- background tty write attempted
- SIGVTALRM : constant := 28; -- virtual timer expired
- SIGPROF : constant := 29; -- profiling timer expired
- SIGXCPU : constant := 30; -- CPU time limit exceeded
- SIGXFSZ : constant := 31; -- filesize limit exceeded
- SIGWAITING : constant := 32; -- process's lwps blocked (Solaris)
- SIGLWP : constant := 33; -- used by thread library (Solaris)
- SIGFREEZE : constant := 34; -- used by CPR (Solaris)
- SIGTHAW : constant := 35; -- used by CPR (Solaris)
- SIGCANCEL : constant := 36; -- used for thread cancel (Solaris)
-
- type Signal_Set is array (Natural range <>) of Signal;
-
- Unmasked : constant Signal_Set :=
- (SIGTRAP, SIGLWP, SIGTTIN, SIGTTOU, SIGTSTP, SIGPROF);
-
- Reserved : constant Signal_Set :=
- (SIGKILL, SIGSTOP, SIGALRM, SIGVTALRM, SIGWAITING);
-
- 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);
-
- -- The types mcontext_t and gregset_t are part of the ucontext_t
- -- information, which is specific to Solaris2.4 for SPARC
- -- The ucontext_t info seems to be used by the handler
- -- for SIGSEGV to decide whether it is a Storage_Error (stack overflow) or
- -- a Constraint_Error (bad pointer). The original code that did this
- -- is suspect, so it is not clear whether we really need this part of
- -- the signal context information, or perhaps something else.
- -- More analysis is needed, after which these declarations may need to
- -- be changed.
-
- EMT_TAGOVF : constant := 1; -- tag overflow
- FPE_INTDIV : constant := 1; -- integer divide by zero
- FPE_INTOVF : constant := 2; -- integer overflow
- FPE_FLTDIV : constant := 3; -- floating point divide by zero
- FPE_FLTOVF : constant := 4; -- floating point overflow
- FPE_FLTUND : constant := 5; -- floating point underflow
- FPE_FLTRES : constant := 6; -- floating point inexact result
- FPE_FLTINV : constant := 7; -- invalid floating point operation
- FPE_FLTSUB : constant := 8; -- subscript out of range
-
- SEGV_MAPERR : constant := 1; -- address not mapped to object
- SEGV_ACCERR : constant := 2; -- invalid permissions
-
- BUS_ADRALN : constant := 1; -- invalid address alignment
- BUS_ADRERR : constant := 2; -- non-existent physical address
- BUS_OBJERR : constant := 3; -- object specific hardware error
-
- ILL_ILLOPC : constant := 1; -- illegal opcode
- ILL_ILLOPN : constant := 2; -- illegal operand
- ILL_ILLADR : constant := 3; -- illegal addressing mode
- ILL_ILLTRP : constant := 4; -- illegal trap
- ILL_PRVOPC : constant := 5; -- privileged opcode
- ILL_PRVREG : constant := 6; -- privileged register
- ILL_COPROC : constant := 7; -- co-processor
- ILL_BADSTK : constant := 8; -- bad stack
-
- type greg_t is new int;
-
- type gregset_t is array (Integer range 0 .. 18) of greg_t;
-
- REG_O0 : constant := 11;
- -- index of saved register O0 in ucontext.uc_mcontext.gregs array
-
- type union_type_2 is new String (1 .. 128);
- type record_type_1 is record
- fpu_fr : union_type_2;
- fpu_q : System.Address;
- fpu_fsr : unsigned;
- fpu_qcnt : unsigned_char;
- fpu_q_entrysize : unsigned_char;
- fpu_en : unsigned_char;
- end record;
- pragma Convention (C, record_type_1);
- type array_type_7 is array (Integer range 0 .. 20) of long;
- type mcontext_t is record
- gregs : gregset_t;
- gwins : System.Address;
- fpregs : record_type_1;
- filler : array_type_7;
- end record;
- pragma Convention (C, mcontext_t);
-
- type record_type_2 is record
- ss_sp : System.Address;
- ss_size : int;
- ss_flags : int;
- end record;
- pragma Convention (C, record_type_2);
- type array_type_8 is array (Integer range 0 .. 22) of long;
- type ucontext_t is record
- uc_flags : unsigned_long;
- uc_link : System.Address;
- uc_sigmask : sigset_t;
- uc_stack : record_type_2;
- uc_mcontext : mcontext_t;
- uc_filler : array_type_8;
- end record;
- pragma Convention (C, ucontext_t);
-
- type Signal_Handler is access procedure
- (signo : Signal;
- info : access siginfo_t;
- context : access ucontext_t);
-
- type union_type_1 is new plain_char;
- type array_type_2 is array (Integer range 0 .. 1) of int;
- type struct_sigaction is record
- sa_flags : int;
- sa_handler : System.Address;
- sa_mask : sigset_t;
- sa_resv : array_type_2;
- end record;
- pragma Convention (C, struct_sigaction);
- type struct_sigaction_ptr is access all struct_sigaction;
-
- SIG_BLOCK : constant := 1;
- SIG_UNBLOCK : constant := 2;
- SIG_SETMASK : constant := 3;
-
- 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 := False;
- -- Indicates wether time slicing is supported (i.e FSU threads have been
- -- compiled with DEF_RR)
-
- 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 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);
-
- -------------------------
- -- Priority Scheduling --
- -------------------------
-
- SCHED_FIFO : constant := 0;
- SCHED_RR : constant := 1;
- SCHED_OTHER : 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");
-
- ---------
- -- LWP --
- ---------
-
- function lwp_self return System.Address;
- -- lwp_self does not exist on this thread library, revert to pthread_self
- -- which is the closest approximation (with getpid). This function is
- -- needed to share 7staprop.adb across POSIX-like targets.
- 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;
-
- -----------
- -- Stack --
- -----------
-
- Stack_Base_Available : constant Boolean := False;
- -- Indicates wether the stack base is available on this target.
- -- This allows us to share s-osinte.adb between all the FSU run time.
- -- Note that this value can only be true if pthread_t has a complete
- -- definition that corresponds exactly to the C header files.
-
- 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 := 0;
- PROT_READ : constant := 1;
- PROT_WRITE : constant := 2;
- PROT_EXEC : constant := 4;
- PROT_ALL : constant := PROT_READ + PROT_WRITE + PROT_EXEC;
-
- PROT_ON : constant := PROT_NONE;
- 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;
- -- FSU_THREADS requires pthread_init, which is nonstandard
- -- and this should be invoked during the elaboration of s-taprop.adb
- pragma Import (C, pthread_init, "pthread_init");
-
- -------------------------
- -- POSIX.1c Section 3 --
- -------------------------
-
- function sigwait (set : access sigset_t; sig : access Signal) return int;
- -- FSU_THREADS has a nonstandard 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, "sigprocmask");
-
- --------------------------
- -- 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;
- -- FSU_THREADS has nonstandard pthread_mutex_lock
-
- function pthread_mutex_unlock (mutex : access pthread_mutex_t) return int;
- -- FSU_THREADS has nonstandard pthread_mutex_lock
-
- 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;
- -- FSU_THREADS has a nonstandard pthread_cond_wait
-
- function pthread_cond_timedwait
- (cond : access pthread_cond_t;
- mutex : access pthread_mutex_t;
- abstime : access timespec) return int;
- -- FSU_THREADS has a nonstandard 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_PROTECT : constant := 2;
- PTHREAD_PRIO_INHERIT : constant := 1;
-
- 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,
- "pthread_mutexattr_setprio_ceiling");
-
- type struct_sched_param is record
- sched_priority : int; -- scheduling priority
- end record;
-
- function pthread_setschedparam
- (thread : pthread_t;
- policy : int;
- param : access struct_sched_param) return int;
- -- FSU_THREADS does not have 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, "pthread_attr_setsched");
-
- function sched_yield return int;
- -- FSU_THREADS does not have 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;
- -- FSU_THREADS has a nonstandard 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 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;
- -- FSU_THREADS has a nonstandard 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 array_type_1 is array (Integer range 0 .. 3) of unsigned_long;
- type sigset_t is record
- X_X_sigbits : array_type_1;
- 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 int;
- CLOCK_REALTIME : constant clockid_t := 0;
-
- type struct_timeval is record
- tv_sec : long;
- tv_usec : long;
- end record;
- pragma Convention (C, struct_timeval);
-
- type pthread_attr_t is record
- flags : int;
- stacksize : int;
- contentionscope : int;
- inheritsched : int;
- detachstate : int;
- sched : int;
- prio : int;
- starttime : timespec;
- deadline : timespec;
- period : timespec;
- end record;
- pragma Convention (C, pthread_attr_t);
-
- type pthread_condattr_t is record
- flags : int;
- end record;
- pragma Convention (C, pthread_condattr_t);
-
- type pthread_mutexattr_t is record
- flags : int;
- prio_ceiling : int;
- protocol : int;
- end record;
- pragma Convention (C, pthread_mutexattr_t);
-
- type sigjmp_buf is array (Integer range 0 .. 18) of int;
-
- type pthread_t_struct is record
- context : sigjmp_buf;
- pbody : sigjmp_buf;
- errno : int;
- ret : int;
- stack_base : System.Address;
- end record;
- pragma Convention (C, pthread_t_struct);
-
- type pthread_t is access all pthread_t_struct;
-
- type queue_t is record
- head : System.Address;
- tail : System.Address;
- end record;
- pragma Convention (C, queue_t);
-
- type pthread_mutex_t is record
- queue : queue_t;
- lock : plain_char;
- owner : System.Address;
- flags : int;
- prio_ceiling : int;
- protocol : int;
- prev_max_ceiling_prio : int;
- end record;
- pragma Convention (C, pthread_mutex_t);
-
- type pthread_cond_t is record
- queue : queue_t;
- flags : int;
- waiters : int;
- mutex : System.Address;
- end record;
- pragma Convention (C, pthread_cond_t);
-
- type pthread_key_t is new int;
-
-end System.OS_Interface;
projects / msp430-gcc.git / blobdiff