From patchwork Wed Dec 23 14:43:03 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joel Brobecker X-Patchwork-Id: 10107 Received: (qmail 122972 invoked by alias); 23 Dec 2015 14:43:18 -0000 Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org Delivered-To: mailing list gdb-patches@sourceware.org Received: (qmail 122963 invoked by uid 89); 23 Dec 2015 14:43:17 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.6 required=5.0 tests=AWL, BAYES_00, KAM_LAZY_DOMAIN_SECURITY, RCVD_IN_DNSWL_LOW autolearn=no version=3.3.2 spammy=convoluted, humpf, bouh, gdbada X-HELO: rock.gnat.com Received: from rock.gnat.com (HELO rock.gnat.com) (205.232.38.15) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-SHA encrypted) ESMTPS; Wed, 23 Dec 2015 14:43:14 +0000 Received: from localhost (localhost.localdomain [127.0.0.1]) by filtered-rock.gnat.com (Postfix) with ESMTP id E6F3311655F; Wed, 23 Dec 2015 09:43:12 -0500 (EST) Received: from rock.gnat.com ([127.0.0.1]) by localhost (rock.gnat.com [127.0.0.1]) (amavisd-new, port 10024) with LMTP id OCg+kQTu-sF6; Wed, 23 Dec 2015 09:43:12 -0500 (EST) Received: from joel.gnat.com (localhost.localdomain [127.0.0.1]) by rock.gnat.com (Postfix) with ESMTP id 74BA11164B7; Wed, 23 Dec 2015 09:43:12 -0500 (EST) Received: by joel.gnat.com (Postfix, from userid 1000) id 5B2E646BAD; Wed, 23 Dec 2015 18:43:03 +0400 (RET) Date: Wed, 23 Dec 2015 18:43:03 +0400 From: Joel Brobecker To: Pedro Alves Cc: gdb-patches@sourceware.org Subject: Re: [RFC/commmit] [testsuite/Ada] stop using project files when building test programs Message-ID: <20151223144303.GC18676@adacore.com> References: <1450798411-26617-1-git-send-email-brobecker@adacore.com> <567A9FE6.30504@redhat.com> <20151223133504.GB18676@adacore.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20151223133504.GB18676@adacore.com> User-Agent: Mutt/1.5.23 (2014-03-12) > Humpf, that's a fair number of reasons showing that assuming 8.6 > may not be reasonable. Bouh... > > > How hard would it be to avoid try/finally? Wouldn't you just have to > > use catch instead? > > I don't think it would be very hard. I think catch will work, but > will be a little more convoluted. I'll give it a try... Still, for a complete dummy like myself, that took nearly 45 minutes, just to make sure I understand TCL semantics better, and find a machine that has TCL 8.5... I would appreciate a review of the attached patch, because TCL and I are not regular friends. gdb/testsuite: * lib/ada.exp (target_compile_ada_from_dir): New function. (gdb_compile_ada): Reimplement avoiding the use of project files. * gdb.ada/gnat_ada.gpr: Delete. * gdb.ada/cond_lang.exp: Adjust test to make path before filename optional. * gdb.ada/small_reg_param.exp: Likewise. Thanks! From 672d8857a125959b51e5f760cfc7f1c5d5a851cc Mon Sep 17 00:00:00 2001 From: Joel Brobecker Date: Tue, 22 Dec 2015 13:28:41 +0400 Subject: [PATCH] [testsuite/Ada] stop using project files when building test programs The current approach when building Ada programs for testing is based on the use of a project file (testsuite/gdb.ada/gnat_ada.gpr). To do that, we pass a number of additional arguments to target_compile, one of them being the project file (via "-P/path/to/gnat_ada.gpr"). This used to work well-enough, but AdaCore is currently working towards removing project-file support from gnatmake (the prefered tool for using project files is gprbuild). So, we need to either switch the compilation to gprbuild, or stop using project files. First, using gprbuild is not always what users will be using to build their applications. So having the option of using gnatmake provides more flexibility towards exactly reproducing past bugs. If we ever need a testcase that requires the use of gprbuild, then I believe support for a new target needs to be added to dejagnu's target_compile. Also, the only real reason behind using a project file in the first place is that we wanted to make it easy to specify the directory where all compilation artifacts get stored. This is a consequence of the organization choice we made for gdb.ada to keep each testcase well organized. It is very easy to achieve that goal without using project files. This is therefore what this patch does: It change gdb_compile_ada to build any program using gnatmake without using a project file (by temporarily changing the current working directory). There is a small (beneficial) side-effect; in the situation where GDB is built in-tree, gnatmake is called as... % gnatmake [...] unit.adb ... which means that the debugging info in unit.o will say contain a filename whose name is 'unit.adb', rather than '/path/to/unit.adb'. This also better matches what users might typically do. But the side- effect is that the unit name in the GDB output is not always a full path. This patch tweaks a couple of testcases to make the path part optional. gdb/testsuite: * lib/ada.exp (target_compile_ada_from_dir): New function. (gdb_compile_ada): Reimplement avoiding the use of project files. * gdb.ada/gnat_ada.gpr: Delete. * gdb.ada/cond_lang.exp: Adjust test to make path before filename optional. * gdb.ada/small_reg_param.exp: Likewise. Tested on x86_64-linux, with both in-tree and out-of-tree builds. --- gdb/testsuite/gdb.ada/cond_lang.exp | 2 +- gdb/testsuite/gdb.ada/gnat_ada.gpr | 25 ----------------------- gdb/testsuite/gdb.ada/small_reg_param.exp | 2 +- gdb/testsuite/lib/ada.exp | 33 +++++++++++++++++++++++++++---- 4 files changed, 31 insertions(+), 31 deletions(-) delete mode 100644 gdb/testsuite/gdb.ada/gnat_ada.gpr diff --git a/gdb/testsuite/gdb.ada/cond_lang.exp b/gdb/testsuite/gdb.ada/cond_lang.exp index 0dfb9e3..7c3ad6e 100644 --- a/gdb/testsuite/gdb.ada/cond_lang.exp +++ b/gdb/testsuite/gdb.ada/cond_lang.exp @@ -39,7 +39,7 @@ gdb_test "show lang" \ # current language mode is auto, and the breakpoint is inside Ada code. set bp_location [gdb_get_line_number "STOP" ${testdir}/mixed.adb] gdb_test "break mixed.adb:${bp_location} if light = green" \ - "Breakpoint \[0-9\]* at .*: file .*/mixed.adb, line \[0-9\]*\\." + "Breakpoint \[0-9\]* at .*: file (.*/)?mixed.adb, line \[0-9\]*\\." # Now, continue until we hit the breakpoint. If the condition is # evaluated correctly, the first hit will be ignored, and the debugger diff --git a/gdb/testsuite/gdb.ada/gnat_ada.gpr b/gdb/testsuite/gdb.ada/gnat_ada.gpr deleted file mode 100644 index 2736206..0000000 --- a/gdb/testsuite/gdb.ada/gnat_ada.gpr +++ /dev/null @@ -1,25 +0,0 @@ --- Copyright 2004-2015 Free Software Foundation, Inc. --- --- This program is free software; you can redistribute it and/or modify --- it under the terms of the GNU General Public License as published by --- the Free Software Foundation; either version 3 of the License, or --- (at your option) any later version. --- --- This program is distributed in the hope that it will be useful, --- but WITHOUT 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 --- along with this program. If not, see . - --- This project file allows us to control the location where the --- compilation artifacts produced when building the Ada examples --- are stored. - -project Gnat_Ada is - - for Source_Dirs use (external ("SRC")); - for Object_Dir use external ("OBJ"); - -end Gnat_Ada; diff --git a/gdb/testsuite/gdb.ada/small_reg_param.exp b/gdb/testsuite/gdb.ada/small_reg_param.exp index bd5cfd6..0a3b972 100644 --- a/gdb/testsuite/gdb.ada/small_reg_param.exp +++ b/gdb/testsuite/gdb.ada/small_reg_param.exp @@ -33,7 +33,7 @@ gdb_breakpoint "call_me" # Continue until we hit the breakpoint inside `Call_Me'. We verify # that the parameter value is correct. gdb_test "continue" \ - "Breakpoint .*, pck\\.call_me \\(w=(w@entry=)?50\\) at .*/pck.adb:.*" \ + "Breakpoint .*, pck\\.call_me \\(w=(w@entry=)?50\\) at (.*)?/pck.adb:.*" \ "continue to call_me" # And just to make sure, we also verify that the parameter value diff --git a/gdb/testsuite/lib/ada.exp b/gdb/testsuite/lib/ada.exp index 6a1e192..28284ff 100644 --- a/gdb/testsuite/lib/ada.exp +++ b/gdb/testsuite/lib/ada.exp @@ -13,6 +13,26 @@ # You should have received a copy of the GNU General Public License # along with this program. If not, see . +# Call target_compile with SOURCE DEST TYPE and OPTIONS as argument, +# after having temporarily changed the current working directory to +# BUILDDIR. +# +# FIXME: brobecke/2015-12-23: We can get rid of this function entirely +# when we are able to migrate to TCL 8.6, which added support for +# try { ... } finally {...} constructs. Despite being released on +# December 2012, that version is still far from being widely used +# (in particular in the more exotic systems of the GCC compile farm). + +proc target_compile_ada_from_dir {builddir source dest type options} { + set saved_cwd [pwd] + catch { + cd $builddir + return [target_compile $source $dest $type $options] + } result options + cd $saved_cwd + return -options $options $result +} + # Compile some Ada code. proc gdb_compile_ada {source dest type options} { @@ -21,12 +41,17 @@ proc gdb_compile_ada {source dest type options} { set gprdir [file dirname $srcdir] set objdir [file dirname $dest] + # Although strictly not necessary, we force the recompilation + # of all units (additional_flags=-f). This is what is done + # when using GCC to build programs in the other languages, + # and it avoids using a stray objfile file from a long-past + # run, for instance. append options " ada" - append options " additional_flags=-P$gprdir/gnat_ada" - append options " additional_flags=-XSRC=[file tail $srcdir]" - append options " additional_flags=-XOBJ=$objdir" + append options " additional_flags=-f" + append options " additional_flags=-I$srcdir" - set result [target_compile [file tail $source] $dest $type $options] + set result [target_compile_ada_from_dir \ + $objdir [file tail $source] $dest $type $options]] # The Ada build always produces some output, even when the build # succeeds. Thus, we can not use the output the same way we do in -- 2.1.4