From owner-freebsd-ports@freebsd.org Sat May 20 16:47:38 2017 Return-Path: Delivered-To: freebsd-ports@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 69DCAD76AAD for ; Sat, 20 May 2017 16:47:38 +0000 (UTC) (envelope-from sgk@troutmask.apl.washington.edu) Received: from troutmask.apl.washington.edu (troutmask.apl.washington.edu [128.95.76.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "troutmask", Issuer "troutmask" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 46A3E1667; Sat, 20 May 2017 16:47:38 +0000 (UTC) (envelope-from sgk@troutmask.apl.washington.edu) Received: from troutmask.apl.washington.edu (localhost [127.0.0.1]) by troutmask.apl.washington.edu (8.15.2/8.15.2) with ESMTPS id v4KGlbVj032262 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Sat, 20 May 2017 09:47:37 -0700 (PDT) (envelope-from sgk@troutmask.apl.washington.edu) Received: (from sgk@localhost) by troutmask.apl.washington.edu (8.15.2/8.15.2/Submit) id v4KGlbIR032261; Sat, 20 May 2017 09:47:37 -0700 (PDT) (envelope-from sgk) Date: Sat, 20 May 2017 09:47:37 -0700 From: Steve Kargl To: freebsd-ports@freebsd.org Cc: jmd@freebsd.org Subject: devel/flang can't link static images Message-ID: <20170520164737.GA32175@troutmask.apl.washington.edu> Reply-To: sgk@troutmask.apl.washington.edu MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.7.2 (2016-11-26) X-BeenThere: freebsd-ports@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Porting software to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 20 May 2017 16:47:38 -0000 Testing the new devel/flang port shows a number of issues with the /usr/local/bin/flang wrapper routine. The contents of the wrapper are #!/bin/sh /usr/local/flang/bin/flang -L/usr/local/flang/lib -lflang -lflangmain \ -lflangrti -lexecinfo $@ where I have wrapped the long line. 1) Compile only uses the -c option. % flang -c a.f90 clang-3.9: warning: -lflang: 'linker' input unused clang-3.9: warning: -lflangmain: 'linker' input unused clang-3.9: warning: -lflangrti: 'linker' input unused clang-3.9: warning: -lexecinfo: 'linker' input unused clang-3.9: warning: argument unused during compilation: '-L/usr/local/flang/lib' These warnings are complete nonsense and caused by the inclusion of the libraries on the command line and the -L option. This noise can be suppressed by inclusion of the -w option. 2) The port installs a number modules and include files in /usr/local/flang/include. Flang cannot automatically find these files, so simple programs of the form use iso_fortran_env print *, real_kinds end fail. % flang -o z a.f90 F90-F-0004-Unable to open MODULE file iso_fortran_env.mod (a.f90: 1) F90/x86-64 FreeBSD Flang - 1.5 2017-05-01: compilation aborted This can be fixed by requiring the user to know to add -I/usr/local/flang/include to her command line. A better fix would be to include this option in the wrapper, so flang can find the intrinsic modules. 3) flang cannot link static images. % flang -o z -static a.f90 |& grep undefined | wc -l 105 There are 105 undefined references because required libraries are missing. Here's just a few /usr/ports/devel/flang/work/flang-a9ccdd7/runtime/flangrti/llcrit.c:(.text._mp_copyin_move_multiple+0x17): undefined reference to `__kmpc_global_thread_num' /usr/ports/devel/flang/work/flang-a9ccdd7/runtime/flangrti/llcrit.c:(.text._mp_copyin_move_multiple+0x45): undefined reference to `__kmpc_threadprivate_cached' /usr/ports/devel/flang/work/flang-a9ccdd7/runtime/flangrti/llcrit.c:(.text._mp_copyin_move_multiple+0x59): undefined reference to `__kmpc_threadprivate_cached' /usr/ports/devel/flang/work/flang-a9ccdd7/runtime/flangrti/llcrit.c:(.text._mp_copyin_move_multiple+0x8d): undefined reference to `__kmpc_barrier' /root/tmp/a-0fe0a5.o: In function `MAIN_': /root/tmp/a-353577.ll:(.text+0x37): undefined reference to `f90io_print_init' /root/tmp/a-353577.ll:(.text+0x4b): undefined reference to `_iso_fortran_env_8_' /root/tmp/a-353577.ll:(.text+0x52): undefined reference to `f90io_ldw_a' /root/tmp/a-353577.ll:(.text+0x5a): undefined reference to `f90io_ldw_end' The undefined references with __kmpc prefixes appear to be contained in /usr/local/flang/lib/libompstub.a. This library should probably be included. -- Steve 20170425 https://www.youtube.com/watch?v=VWUpyCsUKR4 20161221 https://www.youtube.com/watch?v=IbCHE-hONow