Fix PR ada/49944

[Eric Botcazou <ebotcazou at adacore dot com>]

The fix was posted at https://gcc.gnu.org/ml/gcc-patches/2011-08/msg00594.html

Applied on all active branches.


2015-12-06  Ludovic Brenta  <ludovic@ludovic-brenta.org>

	PR ada/49944
	* s-osinte-freebsd.ads: Minor reformatting.
	(Stack_Base_Available): Correct comments.
	* s-osinte-kfreebsd-gnu.ads (Time_Slice_Supported, nanosleep,
	clock_id_t, clock_gettime, Stack_Base_Available, Get_Page_Size,
	mprotect, pthread_mutexattr_setprotocol,pthread_mutexattr_getprotocol
	pthread_mutexattr_setprioceiling, pthread_mutexattr_getprioceiling,
	pthread_attr_setscope, pthread_attr_getscope,
	pthread_attr_setinheritsched, pthread_attr_getinheritsched,
	Time_Slice_Supported): Copy from s-osinte-freebsd.ads.
	* gcc-interface/Makefile.in (x86/kfreebsd): Use the POSIX version of
	the System.Task_Primitives.Operations package.

-- 
Eric Botcazou

Index: gcc-interface/Makefile.in
===================================================================
--- gcc-interface/Makefile.in	(revision 231318)
+++ gcc-interface/Makefile.in	(working copy)
@@ -1398,9 +1398,7 @@ ifeq ($(strip $(filter-out %86 kfreebsd%
   s-osinte.adb<s-osinte-posix.adb \
   s-osinte.ads<s-osinte-kfreebsd-gnu.ads \
   s-osprim.adb<s-osprim-posix.adb \
-  s-taprop.adb<s-taprop-linux.adb \
-  s-tasinf.ads<s-tasinf-linux.ads \
-  s-tasinf.adb<s-tasinf-linux.adb \
+  s-taprop.adb<s-taprop-posix.adb \
   s-taspri.ads<s-taspri-posix.ads \
   s-tpopsp.adb<s-tpopsp-posix-foreign.adb \
   $(ATOMICS_TARGET_PAIRS) \
@@ -1431,9 +1429,7 @@ ifeq ($(strip $(filter-out x86_64 kfreeb
   s-osinte.adb<s-osinte-posix.adb \
   s-osinte.ads<s-osinte-kfreebsd-gnu.ads \
   s-osprim.adb<s-osprim-posix.adb \
-  s-taprop.adb<s-taprop-linux.adb \
-  s-tasinf.ads<s-tasinf-linux.ads \
-  s-tasinf.adb<s-tasinf-linux.adb \
+  s-taprop.adb<s-taprop-posix.adb \
   s-taspri.ads<s-taspri-posix.ads \
   s-tpopsp.adb<s-tpopsp-posix-foreign.adb \
   system.ads<system-freebsd-x86_64.ads
Index: s-osinte-freebsd.ads
===================================================================
--- s-osinte-freebsd.ads	(revision 231318)
+++ s-osinte-freebsd.ads	(working copy)
@@ -31,7 +31,7 @@
 --                                                                          --
 ------------------------------------------------------------------------------
 
---  This is the FreeBSD PTHREADS version of this package
+--  This is the FreeBSD (POSIX Threads) version of this package
 
 --  This package encapsulates all direct interfaces to OS services
 --  that are needed by the tasking run-time (libgnarl).
@@ -197,7 +197,7 @@ package System.OS_Interface is
 
    type timespec is private;
 
-   function nanosleep (rqtp, rmtp : access timespec)  return int;
+   function nanosleep (rqtp, rmtp : access timespec) return int;
    pragma Import (C, nanosleep, "nanosleep");
 
    type clockid_t is new int;
@@ -322,10 +322,7 @@ package System.OS_Interface is
    --  No alternate signal stack is used on this platform
 
    Stack_Base_Available : constant Boolean := False;
-   --  Indicates whether 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.
+   --  Indicates whether the stack base is available on this target
 
    function Get_Stack_Base (thread : pthread_t) return Address;
    pragma Inline (Get_Stack_Base);
Index: s-osinte-kfreebsd-gnu.ads
===================================================================
--- s-osinte-kfreebsd-gnu.ads	(revision 231330)
+++ s-osinte-kfreebsd-gnu.ads	(working copy)
@@ -30,7 +30,7 @@
 --                                                                          --
 ------------------------------------------------------------------------------
 
---  This is the GNU/kFreeBSD (GNU/LinuxThreads) version of this package
+--  This is the GNU/kFreeBSD (POSIX Threads) version of this package
 
 --  This package encapsulates all direct interfaces to OS services
 --  that are needed by children of System.
@@ -198,8 +198,24 @@ package System.OS_Interface is
    -- Time --
    ----------
 
+   Time_Slice_Supported : constant Boolean := True;
+   --  Indicates whether time slicing is supported (i.e SCHED_RR is supported)
+
    type timespec is private;
 
+   function nanosleep (rqtp, rmtp : access timespec) return int;
+   pragma Import (C, nanosleep, "nanosleep");
+
+   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);
 
@@ -271,6 +287,10 @@ package System.OS_Interface is
    type pthread_key_t       is private;
 
    PTHREAD_CREATE_DETACHED : constant := 1;
+   PTHREAD_CREATE_JOINABLE : constant := 0;
+
+   PTHREAD_SCOPE_PROCESS : constant := 0;
+   PTHREAD_SCOPE_SYSTEM  : constant := 2;
 
    -----------
    -- Stack --
@@ -294,9 +314,29 @@ package System.OS_Interface is
    Alternate_Stack_Size : constant := 0;
    --  No alternate signal stack is used on this platform
 
+   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);
-   --  This is a dummy procedure to share some GNULLI files
+   --  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
+
+   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 --
@@ -385,6 +425,36 @@ package System.OS_Interface is
    -- 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, "pthread_mutexattr_setprotocol");
+
+   function pthread_mutexattr_getprotocol
+     (attr     : access pthread_mutexattr_t;
+      protocol : access int) return int;
+   pragma Import
+     (C, pthread_mutexattr_getprotocol, "pthread_mutexattr_getprotocol");
+
+   function pthread_mutexattr_setprioceiling
+     (attr     : access pthread_mutexattr_t;
+      prioceiling : int) return int;
+   pragma Import
+     (C, pthread_mutexattr_setprioceiling,
+      "pthread_mutexattr_setprioceiling");
+
+   function pthread_mutexattr_getprioceiling
+     (attr     : access pthread_mutexattr_t;
+      prioceiling : access int) return int;
+   pragma Import
+     (C, pthread_mutexattr_getprioceiling,
+      "pthread_mutexattr_getprioceiling");
+
    type struct_sched_param is record
       sched_priority : int;  --  scheduling priority
    end record;
@@ -396,6 +466,28 @@ package System.OS_Interface is
       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_getscope
+     (attr            : access pthread_attr_t;
+      contentionscope : access int) return int;
+   pragma Import (C, pthread_attr_getscope, "pthread_attr_getscope");
+
+   function pthread_attr_setinheritsched
+     (attr            : access pthread_attr_t;
+      inheritsched : int) return int;
+   pragma Import
+     (C, pthread_attr_setinheritsched, "pthread_attr_setinheritsched");
+
+   function pthread_attr_getinheritsched
+     (attr         : access pthread_attr_t;
+      inheritsched : access int) return int;
+   pragma Import
+     (C, pthread_attr_getinheritsched, "pthread_attr_getinheritsched");
+
    function pthread_attr_setschedpolicy
      (attr   : access pthread_attr_t;
       policy : int) return int;
@@ -506,6 +598,9 @@ private
    end record;
    pragma Convention (C, timespec);
 
+   type clockid_t is new int;
+   CLOCK_REALTIME : constant clockid_t := 0;
+
    type pthread_attr_t is record
       detachstate   : int;
       schedpolicy   : int;