===================================================================
@@ -0,0 +1,643 @@
+------------------------------------------------------------------------------
+-- --
+-- GNAT 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) 1995-2012, Free Software Foundation, Inc. --
+-- --
+-- GNAT 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/>. --
+-- --
+-- GNARL was developed by the GNARL team at Florida State University. --
+-- Extensive contributions were provided by Ada Core Technologies, Inc. --
+-- --
+------------------------------------------------------------------------------
+
+-- This is an Android version of this package which is based on the
+-- GNU/Linux version
+
+-- This package encapsulates all direct interfaces to OS services
+-- that are needed by the tasking run-time (libgnarl).
+
+-- 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 Ada.Unchecked_Conversion;
+with Interfaces.C;
+with System.Linux;
+with System.OS_Constants;
+
+package System.OS_Interface is
+ pragma Preelaborate;
+
+ subtype int is Interfaces.C.int;
+ subtype char is Interfaces.C.char;
+ 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 := System.Linux.EAGAIN;
+ EINTR : constant := System.Linux.EINTR;
+ EINVAL : constant := System.Linux.EINVAL;
+ ENOMEM : constant := System.Linux.ENOMEM;
+ EPERM : constant := System.Linux.EPERM;
+ ETIMEDOUT : constant := System.Linux.ETIMEDOUT;
+
+ -------------
+ -- Signals --
+ -------------
+
+ Max_Interrupt : constant := 63;
+ type Signal is new int range 0 .. Max_Interrupt;
+ for Signal'Size use int'Size;
+
+ SIGHUP : constant := System.Linux.SIGHUP;
+ SIGINT : constant := System.Linux.SIGINT;
+ SIGQUIT : constant := System.Linux.SIGQUIT;
+ SIGILL : constant := System.Linux.SIGILL;
+ SIGTRAP : constant := System.Linux.SIGTRAP;
+ SIGIOT : constant := System.Linux.SIGIOT;
+ SIGABRT : constant := System.Linux.SIGABRT;
+ SIGFPE : constant := System.Linux.SIGFPE;
+ SIGKILL : constant := System.Linux.SIGKILL;
+ SIGBUS : constant := System.Linux.SIGBUS;
+ SIGSEGV : constant := System.Linux.SIGSEGV;
+ SIGPIPE : constant := System.Linux.SIGPIPE;
+ SIGALRM : constant := System.Linux.SIGALRM;
+ SIGTERM : constant := System.Linux.SIGTERM;
+ SIGUSR1 : constant := System.Linux.SIGUSR1;
+ SIGUSR2 : constant := System.Linux.SIGUSR2;
+ SIGCLD : constant := System.Linux.SIGCLD;
+ SIGCHLD : constant := System.Linux.SIGCHLD;
+ SIGPWR : constant := System.Linux.SIGPWR;
+ SIGWINCH : constant := System.Linux.SIGWINCH;
+ SIGURG : constant := System.Linux.SIGURG;
+ SIGPOLL : constant := System.Linux.SIGPOLL;
+ SIGIO : constant := System.Linux.SIGIO;
+ SIGLOST : constant := System.Linux.SIGLOST;
+ SIGSTOP : constant := System.Linux.SIGSTOP;
+ SIGTSTP : constant := System.Linux.SIGTSTP;
+ SIGCONT : constant := System.Linux.SIGCONT;
+ SIGTTIN : constant := System.Linux.SIGTTIN;
+ SIGTTOU : constant := System.Linux.SIGTTOU;
+ SIGVTALRM : constant := System.Linux.SIGVTALRM;
+ SIGPROF : constant := System.Linux.SIGPROF;
+ SIGXCPU : constant := System.Linux.SIGXCPU;
+ SIGXFSZ : constant := System.Linux.SIGXFSZ;
+ SIGUNUSED : constant := System.Linux.SIGUNUSED;
+ SIGSTKFLT : constant := System.Linux.SIGSTKFLT;
+ SIGLTHRRES : constant := System.Linux.SIGLTHRRES;
+ SIGLTHRCAN : constant := System.Linux.SIGLTHRCAN;
+ SIGLTHRDBG : constant := System.Linux.SIGLTHRDBG;
+
+ SIGADAABORT : constant := SIGABRT;
+ -- Change this 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,
+ -- To enable debugging on multithreaded applications, mark SIGTRAP to
+ -- be kept unmasked.
+
+ SIGBUS,
+
+ SIGTTIN, SIGTTOU, SIGTSTP,
+ -- Keep these three signals unmasked so that background processes and IO
+ -- behaves as normal "C" applications
+
+ SIGPROF,
+ -- To avoid confusing the profiler
+
+ SIGKILL, SIGSTOP,
+ -- These two signals actually can't be masked (POSIX won't allow it)
+
+ SIGLTHRRES, SIGLTHRCAN, SIGLTHRDBG);
+ -- These three signals are used by GNU/LinuxThreads starting from glibc
+ -- 2.1 (future 2.2).
+
+ Reserved : constant Signal_Set := (SIGVTALRM, SIGUNUSED);
+ -- Not clear why these two signals are reserved. Perhaps they are not
+ -- supported by this version of GNU/Linux ???
+
+ 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);
+
+ type struct_sigaction is record
+ sa_handler : System.Address;
+ sa_mask : sigset_t;
+ sa_flags : Interfaces.C.unsigned_long;
+ sa_restorer : System.Address;
+ end record;
+ pragma Convention (C, struct_sigaction);
+
+ type struct_sigaction_ptr is access all struct_sigaction;
+
+ SA_SIGINFO : constant := System.Linux.SA_SIGINFO;
+ SA_ONSTACK : constant := System.Linux.SA_ONSTACK;
+
+ 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 new int;
+
+ function clock_gettime
+ (clock_id : clockid_t;
+ tp : access timespec) return int;
+
+ function To_Duration (TS : timespec) return Duration;
+ pragma Inline (To_Duration);
+
+ function To_Timespec (D : Duration) return timespec;
+ pragma Inline (To_Timespec);
+
+ function sysconf (name : int) return long;
+ pragma Import (C, sysconf);
+
+ SC_CLK_TCK : constant := 2;
+ SC_NPROCESSORS_ONLN : constant := 84;
+
+ -------------------------
+ -- Priority Scheduling --
+ -------------------------
+
+ SCHED_OTHER : constant := 0;
+ SCHED_FIFO : constant := 1;
+ SCHED_RR : constant := 2;
+
+ function To_Target_Priority
+ (Prio : System.Any_Priority)
+ return Interfaces.C.int is (Interfaces.C.int (Prio));
+ -- Maps System.Any_Priority to a POSIX priority
+
+ -------------
+ -- 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");
+
+ -------------
+ -- Threads --
+ -------------
+
+ type Thread_Body is access
+ function (arg : System.Address) return System.Address;
+ pragma Convention (C, Thread_Body);
+
+ function Thread_Body_Access is new
+ Ada.Unchecked_Conversion (System.Address, Thread_Body);
+
+ type pthread_t is new unsigned_long;
+ subtype Thread_Id is pthread_t;
+
+ function To_pthread_t is
+ new Ada.Unchecked_Conversion (unsigned_long, 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_SCOPE_PROCESS : constant := 1;
+ PTHREAD_SCOPE_SYSTEM : constant := 0;
+
+ -- Read/Write lock not supported on Android.
+
+ subtype pthread_rwlock_t is pthread_mutex_t;
+ subtype pthread_rwlockattr_t is pthread_mutexattr_t;
+
+ -----------
+ -- Stack --
+ -----------
+
+ type stack_t is record
+ ss_sp : System.Address;
+ ss_flags : int;
+ ss_size : size_t;
+ end record;
+ pragma Convention (C, stack_t);
+
+ function sigaltstack
+ (ss : not null access stack_t;
+ oss : access stack_t) return int;
+ pragma Import (C, sigaltstack, "sigaltstack");
+
+ Alternate_Stack : aliased System.Address;
+ pragma Import (C, Alternate_Stack, "__gnat_alternate_stack");
+ -- The alternate signal stack for stack overflows
+
+ Alternate_Stack_Size : constant := 16 * 1024;
+ -- This must be in keeping with init.c:__gnat_alternate_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 is (Null_Address);
+ -- This is a dummy procedure to share some GNULLI files
+
+ 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
+
+ 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_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 is null;
+ -- 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 Import (C, sigwait, "sigwait");
+
+ function pthread_kill (thread : pthread_t; sig : Signal) return int;
+ pragma Import (C, pthread_kill, "pthread_kill");
+
+ function pthread_sigmask
+ (how : int;
+ set : access sigset_t;
+ oset : access sigset_t) return int;
+ pragma Import (C, pthread_sigmask, "pthread_sigmask");
+
+ --------------------------
+ -- 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_PROTECT : constant := 0;
+ PTHREAD_PRIO_INHERIT : constant := 1;
+
+ function pthread_mutexattr_setprotocol
+ (attr : access pthread_mutexattr_t;
+ protocol : int) return int is (0);
+
+ function pthread_mutexattr_setprioceiling
+ (attr : access pthread_mutexattr_t;
+ prioceiling : int) return int is (0);
+
+ type struct_sched_param is record
+ sched_priority : int; -- scheduling priority
+ end record;
+ pragma Convention (C, struct_sched_param);
+
+ 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;
+ scope : int) return int;
+ pragma Import (C, pthread_attr_setscope, "pthread_attr_setscope");
+
+ function pthread_attr_setschedpolicy
+ (attr : access pthread_attr_t;
+ policy : int) return int;
+ pragma Import
+ (C, pthread_attr_setschedpolicy, "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, "pthread_attr_setdetachstate");
+
+ function pthread_attr_setstacksize
+ (attr : access pthread_attr_t;
+ stacksize : size_t) return int;
+ pragma Import (C, pthread_attr_setstacksize, "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");
+
+ function lwp_self return System.Address;
+ pragma Import (C, lwp_self, "__gnat_lwp_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;
+ pragma Import (C, pthread_getspecific, "pthread_getspecific");
+
+ type destructor_pointer is access procedure (arg : System.Address);
+ pragma Convention (C, destructor_pointer);
+
+ function pthread_key_create
+ (key : access pthread_key_t;
+ destructor : destructor_pointer) return int;
+ pragma Import (C, pthread_key_create, "pthread_key_create");
+
+ CPU_SETSIZE : constant := 1_024;
+ -- Size of the cpu_set_t mask on most linux systems (SUSE 11 uses 4_096).
+ -- This is kept for backward compatibility (System.Task_Info uses it), but
+ -- the run-time library does no longer rely on static masks, using
+ -- dynamically allocated masks instead.
+
+ type bit_field is array (1 .. CPU_SETSIZE) of Boolean;
+ for bit_field'Size use CPU_SETSIZE;
+ pragma Pack (bit_field);
+ pragma Convention (C, bit_field);
+
+ type cpu_set_t is record
+ bits : bit_field;
+ end record;
+ pragma Convention (C, cpu_set_t);
+
+ type cpu_set_t_ptr is access all cpu_set_t;
+ -- In the run-time library we use this pointer because the size of type
+ -- cpu_set_t varies depending on the glibc version. Hence, objects of type
+ -- cpu_set_t are allocated dynamically using the number of processors
+ -- available in the target machine (value obtained at execution time).
+
+ function CPU_ALLOC (count : size_t) return cpu_set_t_ptr;
+ pragma Import (C, CPU_ALLOC, "__gnat_cpu_alloc");
+ -- Wrapper around the CPU_ALLOC C macro
+
+ function CPU_ALLOC_SIZE (count : size_t) return size_t;
+ pragma Import (C, CPU_ALLOC_SIZE, "__gnat_cpu_alloc_size");
+ -- Wrapper around the CPU_ALLOC_SIZE C macro
+
+ procedure CPU_FREE (cpuset : cpu_set_t_ptr);
+ pragma Import (C, CPU_FREE, "__gnat_cpu_free");
+ -- Wrapper around the CPU_FREE C macro
+
+ procedure CPU_ZERO (count : size_t; cpuset : cpu_set_t_ptr);
+ pragma Import (C, CPU_ZERO, "__gnat_cpu_zero");
+ -- Wrapper around the CPU_ZERO_S C macro
+
+ procedure CPU_SET (cpu : int; count : size_t; cpuset : cpu_set_t_ptr);
+ pragma Import (C, CPU_SET, "__gnat_cpu_set");
+ -- Wrapper around the CPU_SET_S C macro
+
+ function pthread_setaffinity_np
+ (thread : pthread_t;
+ cpusetsize : size_t;
+ cpuset : cpu_set_t_ptr) return int;
+ pragma Import (C, pthread_setaffinity_np, "pthread_setaffinity_np");
+ pragma Weak_External (pthread_setaffinity_np);
+ -- Use a weak symbol because this function may be available or not,
+ -- depending on the version of the system.
+
+ function pthread_attr_setaffinity_np
+ (attr : access pthread_attr_t;
+ cpusetsize : size_t;
+ cpuset : cpu_set_t_ptr) return int;
+ pragma Import (C, pthread_attr_setaffinity_np,
+ "pthread_attr_setaffinity_np");
+ pragma Weak_External (pthread_attr_setaffinity_np);
+ -- Use a weak symbol because this function may be available or not,
+ -- depending on the version of the system.
+
+private
+
+ type sigset_t is
+ -- array (0 .. OS_Constants.SIZEOF_sigset - 1) of unsigned_char;
+ array (1 .. 127) of unsigned_char;
+ pragma Convention (C, sigset_t);
+ for sigset_t'Alignment use Interfaces.C.unsigned_long'Alignment;
+
+ pragma Warnings (Off);
+ for struct_sigaction use record
+ sa_handler at Linux.sa_handler_pos range 0 .. Standard'Address_Size - 1;
+ sa_mask at Linux.sa_mask_pos range 0 .. 1023;
+ sa_flags at Linux.sa_flags_pos range 0 .. Standard'Address_Size - 1;
+ end record;
+ -- We intentionally leave sa_restorer unspecified and let the compiler
+ -- append it after the last field, so disable corresponding warning.
+ pragma Warnings (On);
+
+ type pid_t is new int;
+
+ type time_t is new long;
+
+ type timespec is record
+ tv_sec : time_t;
+ tv_nsec : long;
+ end record;
+ pragma Convention (C, timespec);
+
+ type unsigned_long_long_t is mod 2 ** 64;
+ -- Local type only used to get the alignment of this type below
+
+ subtype char_array is Interfaces.C.char_array;
+
+ type pthread_attr_t is record
+ Data : char_array (1 .. OS_Constants.PTHREAD_ATTR_SIZE);
+ end record;
+ pragma Convention (C, pthread_attr_t);
+ for pthread_attr_t'Alignment use Interfaces.C.unsigned_long'Alignment;
+
+ type pthread_condattr_t is record
+ Data : char_array (1 .. OS_Constants.PTHREAD_CONDATTR_SIZE);
+ end record;
+ pragma Convention (C, pthread_condattr_t);
+ for pthread_condattr_t'Alignment use Interfaces.C.int'Alignment;
+
+ type pthread_mutexattr_t is record
+ Data : char_array (1 .. OS_Constants.PTHREAD_MUTEXATTR_SIZE);
+ end record;
+ pragma Convention (C, pthread_mutexattr_t);
+ for pthread_mutexattr_t'Alignment use Interfaces.C.int'Alignment;
+
+ type pthread_mutex_t is record
+ Data : char_array (1 .. OS_Constants.PTHREAD_MUTEX_SIZE);
+ end record;
+ pragma Convention (C, pthread_mutex_t);
+ for pthread_mutex_t'Alignment use Interfaces.C.unsigned_long'Alignment;
+
+ type pthread_cond_t is record
+ Data : char_array (1 .. OS_Constants.PTHREAD_COND_SIZE);
+ end record;
+ pragma Convention (C, pthread_cond_t);
+ for pthread_cond_t'Alignment use unsigned_long_long_t'Alignment;
+
+ type pthread_key_t is new unsigned;
+
+end System.OS_Interface;
===================================================================
@@ -0,0 +1,118 @@
+------------------------------------------------------------------------------
+-- --
+-- GNAT RUN-TIME LIBRARY (GNARL) COMPONENTS --
+-- --
+-- S Y S T E M . O S _ I N T E R F A C E --
+-- --
+-- B o d y --
+-- --
+-- Copyright (C) 1995-2012, AdaCore --
+-- --
+-- GNAT 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/>. --
+-- --
+-- GNARL was developed by the GNARL team at Florida State University. --
+-- Extensive contributions were provided by Ada Core Technologies, Inc. --
+-- --
+------------------------------------------------------------------------------
+
+-- This is an Android version of this package.
+
+pragma Polling (Off);
+-- Turn off polling, we do not want ATC polling to take place during
+-- tasking operations. It causes infinite loops and other problems.
+
+-- This package encapsulates all direct interfaces to OS services
+-- that are needed by children of System.
+
+with Interfaces.C; use Interfaces.C;
+package body System.OS_Interface is
+
+ -----------------
+ -- To_Duration --
+ -----------------
+
+ function To_Duration (TS : timespec) return Duration is
+ begin
+ return Duration (TS.tv_sec) + Duration (TS.tv_nsec) / 10#1#E9;
+ end To_Duration;
+
+ -----------------
+ -- To_Timespec --
+ -----------------
+
+ function To_Timespec (D : Duration) return timespec is
+ S : time_t;
+ F : Duration;
+
+ begin
+ S := time_t (Long_Long_Integer (D));
+ F := D - Duration (S);
+
+ -- If F has negative value due to a round-up, adjust for positive F
+ -- value.
+
+ if F < 0.0 then
+ S := S - 1;
+ F := F + 1.0;
+ end if;
+
+ return timespec'(tv_sec => S,
+ tv_nsec => long (Long_Long_Integer (F * 10#1#E9)));
+ end To_Timespec;
+
+ -------------------
+ -- clock_gettime --
+ -------------------
+
+ function clock_gettime
+ (clock_id : clockid_t;
+ tp : access timespec) return int
+ is
+ pragma Unreferenced (clock_id);
+
+ -- Android/Linux don't have clock_gettime, so use gettimeofday
+
+ use Interfaces;
+
+ type timeval is array (1 .. 2) of C.long;
+
+ procedure timeval_to_duration
+ (T : not null access timeval;
+ sec : not null access C.long;
+ usec : not null access C.long);
+ pragma Import (C, timeval_to_duration, "__gnat_timeval_to_duration");
+
+ Micro : constant := 10**6;
+ sec : aliased C.long;
+ usec : aliased C.long;
+ TV : aliased timeval;
+ Result : int;
+
+ function gettimeofday
+ (Tv : access timeval;
+ Tz : System.Address := System.Null_Address) return int;
+ pragma Import (C, gettimeofday, "gettimeofday");
+
+ begin
+ Result := gettimeofday (TV'Access, System.Null_Address);
+ pragma Assert (Result = 0);
+ timeval_to_duration (TV'Access, sec'Access, usec'Access);
+ tp.all := To_Timespec (Duration (sec) + Duration (usec) / Micro);
+ return Result;
+ end clock_gettime;
+
+end System.OS_Interface;
===================================================================
@@ -984,6 +984,33 @@
EXTRA_LIBGNAT_OBJS+=vx_stack_info.o
endif
+ifeq ($(strip $(filter-out arm% linux-androideabi,$(arch) $(osys)-$(word 4,$(targ)))),)
+ LIBGNAT_TARGET_PAIRS = \
+ a-intnam.ads<a-intnam-linux.ads \
+ s-inmaop.adb<s-inmaop-posix.adb \
+ s-intman.adb<s-intman-posix.adb \
+ s-linux.ads<s-linux.ads \
+ s-osinte.adb<s-osinte-android.adb \
+ s-osinte.ads<s-osinte-android.ads \
+ s-osprim.adb<s-osprim-posix.adb \
+ s-taprop.adb<s-taprop-posix.adb \
+ s-taspri.ads<s-taspri-posix-noaltstack.ads \
+ s-tpopsp.adb<s-tpopsp-posix-foreign.adb \
+ system.ads<system-linux-armel.ads \
+ $(DUMMY_SOCKETS_TARGET_PAIRS)
+
+ TOOLS_TARGET_PAIRS = \
+ mlib-tgt-specific.adb<mlib-tgt-specific-linux.adb \
+ indepsw.adb<indepsw-gnu.adb
+
+ GNATRTL_SOCKETS_OBJS =
+ EXTRA_GNATRTL_TASKING_OBJS=s-linux.o
+ EH_MECHANISM=
+ THREADSLIB =
+ GNATLIB_SHARED = gnatlib-shared-dual
+ LIBRARY_VERSION := $(LIB_VERSION)
+endif
+
# Sparc Solaris
ifeq ($(strip $(filter-out sparc% sun solaris%,$(targ))),)
LIBGNAT_TARGET_PAIRS_COMMON = \