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-[[!meta copyright="Copyright © 2011, 2012, 2013 Free Software Foundation,
-Inc."]]
-
-[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
-id="license" text="Permission is granted to copy, distribute and/or modify this
-document under the terms of the GNU Free Documentation License, Version 1.2 or
-any later version published by the Free Software Foundation; with no Invariant
-Sections, no Front-Cover Texts, and no Back-Cover Texts.  A copy of the license
-is included in the section entitled [[GNU Free Documentation
-License|/fdl]]."]]"""]]
-
-[[!meta title="Enable Ada programming (GCC: GNAT)"]]
-
-[[!tag open_issue_gcc]]
-
-Make the Ada programming language available on GNU/Hurd in its [[GCC]] GNAT
-implementation, and enable Hurd-specific features.
-
-There is a [[!FF_project 259]][[!tag bounty]] on this task.
-
----
-
-
-# Part I
-
-First, make the language functional, have its test suite pass without errors.
-
-
-## Original [[community/GSoC]] Task Description
-
-[[!inline pages=community/gsoc/project_ideas/gnat feeds=no]]
-
-
-## Debian GCC
-
-There has a patch been added for GNU/kFreeBSD:
-`bfe081336914729fc0180c07ab4afa41965100f2`, `git-svn-id:
-svn://svn.debian.org/gcccvs/branches/sid@5638
-6ca36cf4-e1d1-0310-8c6f-e303bb2178ca'
-
-
-## IRC, freenode, #hurd, 2012-07-17
-
-    <gnu_srs> I've found the remaining problem with gnat backtrace for Hurd!
-      Related to the stack frame.
-    <gnu_srs> This version does not work: one relying on static assumptions
-      about the frame layout
-    <gnu_srs> Causing segfaults.
-    <gnu_srs> Any interest to create a test case out of that piece of code,
-      taken from gcc/ada/tracebak.c?
-    <braunr> gnu_srs: sure
-
-
-### IRC, freenode, #hurd, 2012-07-18
-
-    <braunr> "Digging further revealed that the GNU/Hurd stack frame does not
-      seem to
-    <braunr> be static enough to define USE_GENERIC_UNWINDER in
-      gcc/ada/tracebak.c.
-    <braunr> "
-    <braunr> what do you mean by a "stack frame does not seem to be static
-      enough" ?
-    <gnu_srs> I can qoute from the source file if you want. Otherwise look at
-      the code yourself: gcc/ada/tracebak,c
-    <gnu_srs> I mean that something is wrong with the stack frame for
-      Hurd. This is the code I wanted to use as a test case for the stack.
-    <gnu_srs> Remember?
-    <braunr> more or less
-    <braunr> ah, "static assumptions"
-    <braunr> all right, i don't think anything is "wrong" with stack frames
-    <braunr> but if you use a recent version of gcc, as indicated in the code,
-      -fomit-frame-pointer is enabled by default
-    <braunr> so your stack frame won't look like it used to be without the
-      option
-    <braunr> hence the need for USE_GCC_UNWINDER
-    <braunr> http://en.wikipedia.org/wiki/Call_stack explains this very well
-    <gnu_srs> However, kfreebsd does not seem to need USE_GCC_UNWINDER, how
-      come?
-    <braunr> i guess they don't omit the frame pointer
-    <braunr> your fix is good btw
-    <gnu_srs> thanks
-
-
-### IRC, freenode, #hurd, 2012-07-19
-
-    <gnu_srs> tschwinge: The bug in #681998 should go upstream. Applied in
-      Debian already. Hopefully this is the last patch needed for the port of
-      GNAT to Hurd.
-
-
-## Svante's patch
-
-A basic port has been done by Svante, [[!debbug 668425]], [[!debbug 681998]],
-[[!message-id "1333104917.2962.439.camel@s1499.it.kth.se"]], but there's still
-lots of work remaining.
-The port is not yet upstream: the maintainer raised some concerns that
-[[I|tschwinge]] have not yet found the time to follow up on, [[!message-id
-"1339857758-5032-1-git-send-email-thomas@codesourcery.com"]].
-While the test
-results of the GCC/GNAT testsuite don't look bad (but there are a few
-unresolved issues, and the testsuite appears to be a rather small one), I don't
-know if the port has yet seen any real-world usage, such as using it for any
-bigger Ada code bases, or any Ada testsuites.
-
-
-## `getcontext`/`makecontext`/`setcontext`/`swapcontext` usage analysis
-
-In context of [[glibc/t/tls-threadvar]].  Looking at GCC trunk commit
-f6568ea476aa52a6e23c6db43b3e240cde55783a (2013-04-26).
-
-    gcc/ada/init.c:  sigaltstack (&stack, NULL);
-    gcc/ada/init.c:      sigaltstack (&stack, NULL);
-    gcc/ada/init.c:  sigaltstack (&stack, NULL);
-    gcc/ada/s-osinte-aix.ads:   function sigaltstack
-    gcc/ada/s-osinte-aix.ads:   pragma Import (C, sigaltstack, "sigaltstack");
-    gcc/ada/s-osinte-android.ads:   function sigaltstack
-    gcc/ada/s-osinte-android.ads:   pragma Import (C, sigaltstack, "sigaltstack");
-    gcc/ada/s-osinte-darwin.ads:   function sigaltstack
-    gcc/ada/s-osinte-darwin.ads:   pragma Import (C, sigaltstack, "sigaltstack");
-    gcc/ada/s-osinte-freebsd.ads:   function sigaltstack
-    gcc/ada/s-osinte-freebsd.ads:   pragma Import (C, sigaltstack, "sigaltstack");
-    gcc/ada/s-osinte-hpux.ads:   function sigaltstack
-    gcc/ada/s-osinte-hpux.ads:   pragma Import (C, sigaltstack, "sigaltstack");
-    gcc/ada/s-osinte-kfreebsd-gnu.ads:   function sigaltstack
-    gcc/ada/s-osinte-kfreebsd-gnu.ads:   pragma Import (C, sigaltstack, "sigaltstack");
-    gcc/ada/s-osinte-linux.ads:   function sigaltstack
-    gcc/ada/s-osinte-linux.ads:   pragma Import (C, sigaltstack, "sigaltstack");
-    gcc/ada/s-osinte-rtems.adb:   -- sigaltstack --
-    gcc/ada/s-osinte-rtems.adb:   function sigaltstack
-    gcc/ada/s-osinte-rtems.adb:   end sigaltstack;
-    gcc/ada/s-osinte-rtems.ads:   function sigaltstack
-    gcc/ada/s-osinte-solaris-posix.ads:   function sigaltstack
-    gcc/ada/s-osinte-solaris-posix.ads:   pragma Import (C, sigaltstack, "sigaltstack");
-    gcc/ada/s-taprop-linux.adb:            Result := sigaltstack (Stack'Access, null);
-    gcc/ada/s-taprop-posix.adb:            Result := sigaltstack (Stack'Access, null);
-    gcc/ada/init.c:  stack.ss_sp = __gnat_alternate_stack;
-    gcc/ada/init.c:      stack.ss_sp = __gnat_alternate_stack;
-    gcc/ada/init.c:  stack.ss_sp = __gnat_alternate_stack;
-    gcc/ada/s-osinte-aix.ads:      ss_sp    : System.Address;
-    gcc/ada/s-osinte-android.ads:      ss_sp    : System.Address;
-    gcc/ada/s-osinte-darwin.ads:      ss_sp    : System.Address;
-    gcc/ada/s-osinte-darwin.ads:      uc_stack    : stack_t;          --  Stack Used By This Context
-    gcc/ada/s-osinte-freebsd.ads:      ss_sp    : System.Address;
-    gcc/ada/s-osinte-hpux.ads:      ss_sp    : System.Address;
-    gcc/ada/s-osinte-kfreebsd-gnu.ads:      ss_sp    : System.Address;
-    gcc/ada/s-osinte-linux.ads:      ss_sp    : System.Address;
-    gcc/ada/s-osinte-rtems.ads:      ss_sp    : System.Address;
-    gcc/ada/s-osinte-solaris-posix.ads:      ss_sp    : System.Address;
-    gcc/ada/s-osinte-solaris.ads:      ss_sp        : System.Address;
-    gcc/ada/s-osinte-solaris.ads:      uc_stack     : record_type_2;
-    gcc/ada/s-taprop-linux.adb:            Stack.ss_sp    := Self_ID.Common.Task_Alternate_Stack;
-    gcc/ada/s-taprop-posix.adb:            Stack.ss_sp    := Self_ID.Common.Task_Alternate_Stack;
-
-
----
-
-
-# Part II
-
-Next, Hurd-specific features can be added.  Add an interface to the
-language/environment for being able to do [[RPC]] calls, in order to program
-[[hurd/translator]]s natively in Ada.
-
-
-## Original [[community/GSoC]] Task Description
-
-[[!inline pages=community/gsoc/project_ideas/language_bindings feeds=no]]