From patchwork Thu Sep 11 12:34:45 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pedro Alves X-Patchwork-Id: 2766 Received: (qmail 21357 invoked by alias); 11 Sep 2014 12:34:57 -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 21345 invoked by uid 89); 11 Sep 2014 12:34:56 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-3.2 required=5.0 tests=AWL, BAYES_00, RP_MATCHES_RCVD, SPF_HELO_PASS autolearn=ham version=3.3.2 X-HELO: mx1.redhat.com Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-GCM-SHA384 encrypted) ESMTPS; Thu, 11 Sep 2014 12:34:54 +0000 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s8BCYmc9008907 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 11 Sep 2014 08:34:48 -0400 Received: from [127.0.0.1] (ovpn01.gateway.prod.ext.ams2.redhat.com [10.39.146.11]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s8BCYkDA017289; Thu, 11 Sep 2014 08:34:46 -0400 Message-ID: <541196E5.3090708@redhat.com> Date: Thu, 11 Sep 2014 13:34:45 +0100 From: Pedro Alves User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.7.0 MIME-Version: 1.0 To: Pedro Alves , Jan Kratochvil CC: Doug Evans , Mark Wielaard , gdb-patches@sourceware.org Subject: Re: [PATCH 1/2] testsuite: refactor spawn and wait for attach References: <53B57911.10304@redhat.com> <53B6B0B8.2050702@redhat.com> <21434.52532.737427.778289@ruffy.mtv.corp.google.com> <53BC0D0B.7040001@redhat.com> <21437.28600.751354.629884@ruffy.mtv.corp.google.com> <53BD7749.5000800@redhat.com> <20140903075858.GA23492@host2.jankratochvil.net> <540775D7.7040003@redhat.com> <20140907192818.GA17035@host2.jankratochvil.net> <540DD705.6000204@redhat.com> <20140909172950.GA29752@host2.jankratochvil.net> <540F3A5E.6070505@redhat.com> <5410C1DD.1090200@redhat.com> In-Reply-To: <5410C1DD.1090200@redhat.com> On 09/10/2014 10:25 PM, Pedro Alves wrote: > On 09/09/2014 06:35 PM, Pedro Alves wrote: >> On 09/09/2014 06:29 PM, Jan Kratochvil wrote: >>> On Mon, 08 Sep 2014 18:19:17 +0200, Pedro Alves wrote: >>>> Indeed it could. I've done that now. See below. There were actually more >>>> places around the testsuite that have that same code. Let me know how it looks >>>> to you. >>> >>> As long as it has been tested on *-*-cygwin* I do not see anything wrong >>> there. >> >> It hasn't. I wonder if someone can help with this? > > FYI, Keith was kind enough to run testing and sent me the logs, > though I haven't analyzed them yet. There was a silly bug, causing new Cygwin fails. lreplace was being misused. This fixed it: +++ w/gdb/testsuite/lib/gdb.exp @@ -3381,7 +3381,7 @@ proc spawn_wait_for_attach { executable_list } { # which might be different due to the way fork/exec works. set testpid [lindex $pid_list $i] set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ] - lreplace $i $i $testpid + set pid_list [lreplace $pid_list $i $i $testpid] } } I borrowed the wife's laptop and managed to test the fix on Cygwin myself (boy is that slow...). Here's what I pushed to both master and 7.8. ---- From 7ec5670becb3f978f4d2f4df252ad0cbf805e37a Mon Sep 17 00:00:00 2001 From: Pedro Alves Date: Thu, 11 Sep 2014 13:14:47 +0100 Subject: [PATCH] testsuite: refactor spawn and wait for attach Several places in the testsuite have a copy of a snippet of code that spawns a test program, waits a bit, and then does some PID munging for Cygwin. This is in order to have GDB attach to the spawned program. This refactors all that to a common procedure. (multi-attach.exp wants to spawn multiple processes, so this makes the new procedure's interface work with lists.) Tested on x86_64 Fedora 20. gdb/testsuite/ChangeLog: 2014-09-11 Pedro Alves * lib/gdb.exp (spawn_wait_for_attach): New procedure. * gdb.base/attach.exp (do_attach_tests, do_call_attach_tests) (do_command_attach_tests): Use spawn_wait_for_attach. * gdb.base/solib-overlap.exp: Likewise. * gdb.multi/multi-attach.exp: Likewise. * gdb.python/py-prompt.exp: Likewise. * gdb.python/py-sync-interp.exp: Likewise. * gdb.server/ext-attach.exp: Likewise. --- gdb/testsuite/ChangeLog | 11 ++++++++ gdb/testsuite/gdb.base/attach.exp | 41 +++-------------------------- gdb/testsuite/gdb.base/solib-overlap.exp | 11 +------- gdb/testsuite/gdb.multi/multi-attach.exp | 13 +++------ gdb/testsuite/gdb.python/py-prompt.exp | 10 +------ gdb/testsuite/gdb.python/py-sync-interp.exp | 10 +------ gdb/testsuite/gdb.server/ext-attach.exp | 10 +------ gdb/testsuite/lib/gdb.exp | 25 ++++++++++++++++++ 8 files changed, 48 insertions(+), 83 deletions(-) diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index f85f9b5..a388194 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,14 @@ +2014-09-11 Pedro Alves + + * lib/gdb.exp (spawn_wait_for_attach): New procedure. + * gdb.base/attach.exp (do_attach_tests, do_call_attach_tests) + (do_command_attach_tests): Use spawn_wait_for_attach. + * gdb.base/solib-overlap.exp: Likewise. + * gdb.multi/multi-attach.exp: Likewise. + * gdb.python/py-prompt.exp: Likewise. + * gdb.python/py-sync-interp.exp: Likewise. + * gdb.server/ext-attach.exp: Likewise. + 2014-09-07 Jan Kratochvil PR python/17355 diff --git a/gdb/testsuite/gdb.base/attach.exp b/gdb/testsuite/gdb.base/attach.exp index 9714c29..a20c51a 100644 --- a/gdb/testsuite/gdb.base/attach.exp +++ b/gdb/testsuite/gdb.base/attach.exp @@ -70,13 +70,7 @@ proc do_attach_tests {} { # Start the program running and then wait for a bit, to be sure # that it can be attached to. - set testpid [eval exec $binfile &] - exec sleep 2 - if { [istarget "*-*-cygwin*"] } { - # testpid is the Cygwin PID, GDB uses the Windows PID, which might be - # different due to the way fork/exec works. - set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ] - } + set testpid [spawn_wait_for_attach $binfile] # Verify that we cannot attach to nonsense. @@ -279,16 +273,7 @@ proc do_attach_tests {} { remote_exec build "kill -9 ${testpid}" - # Start the program running and then wait for a bit, to be sure - # that it can be attached to. - - set testpid [eval exec $binfile &] - exec sleep 2 - if { [istarget "*-*-cygwin*"] } { - # testpid is the Cygwin PID, GDB uses the Windows PID, which might be - # different due to the way fork/exec works. - set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ] - } + set testpid [spawn_wait_for_attach $binfile] # Verify that we can attach to the process, and find its a.out # when we're cd'd to some directory that doesn't contain the @@ -335,16 +320,7 @@ proc do_call_attach_tests {} { global gdb_prompt global binfile2 - # Start the program running and then wait for a bit, to be sure - # that it can be attached to. - - set testpid [eval exec $binfile2 &] - exec sleep 2 - if { [istarget "*-*-cygwin*"] } { - # testpid is the Cygwin PID, GDB uses the Windows PID, which might be - # different due to the way fork/exec works. - set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ] - } + set testpid [spawn_wait_for_attach $binfile2] # Attach @@ -397,16 +373,7 @@ proc do_command_attach_tests {} { return 0 } - # Start the program running and then wait for a bit, to be sure - # that it can be attached to. - - set testpid [eval exec $binfile &] - exec sleep 2 - if { [istarget "*-*-cygwin*"] } { - # testpid is the Cygwin PID, GDB uses the Windows PID, which might be - # different due to the way fork/exec works. - set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ] - } + set testpid [spawn_wait_for_attach $binfile] gdb_exit if $verbose>1 then { diff --git a/gdb/testsuite/gdb.base/solib-overlap.exp b/gdb/testsuite/gdb.base/solib-overlap.exp index 68731be..7486b07 100644 --- a/gdb/testsuite/gdb.base/solib-overlap.exp +++ b/gdb/testsuite/gdb.base/solib-overlap.exp @@ -82,16 +82,7 @@ foreach prelink_lib1 {0x40000000 0x50000000} { with_test_prefix "$prelink_lib1" return -1 } - # Start the program running and then wait for a bit, to be sure - # that it can be attached to. - - set testpid [eval exec $binfile &] - sleep 2 - if { [istarget "*-*-cygwin*"] } { - # testpid is the Cygwin PID, GDB uses the Windows PID, which might be - # different due to the way fork/exec works. - set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ] - } + set testpid [spawn_wait_for_attach $binfile] remote_exec build "mv -f ${binfile_lib1} ${binfile_lib1}-running" remote_exec build "mv -f ${binfile_lib2} ${binfile_lib2}-running" diff --git a/gdb/testsuite/gdb.multi/multi-attach.exp b/gdb/testsuite/gdb.multi/multi-attach.exp index e933520..eaff2c9 100644 --- a/gdb/testsuite/gdb.multi/multi-attach.exp +++ b/gdb/testsuite/gdb.multi/multi-attach.exp @@ -30,15 +30,10 @@ if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug additiona # Start the programs running and then wait for a bit, to be sure that # they can be attached to. -set testpid1 [eval exec $binfile &] -set testpid2 [eval exec $binfile &] -exec sleep 2 -if { [istarget "*-*-cygwin*"] } { - # testpid{1,2} are the Cygwin PID, GDB uses the Windows PID, which might be - # different due to the way fork/exec works. - set testpid1 [ exec ps -e | gawk "{ if (\$1 == $testpid1) print \$4; }" ] - set testpid2 [ exec ps -e | gawk "{ if (\$1 == $testpid2) print \$4; }" ] -} + +set pid_list [spawn_wait_for_attach [list $binfile $binfile]] +set testpid1 [lindex $pid_list 0] +set testpid2 [lindex $pid_list 1] gdb_test "attach $testpid1" \ "Attaching to program: .*, process $testpid1.*(in|at).*" \ diff --git a/gdb/testsuite/gdb.python/py-prompt.exp b/gdb/testsuite/gdb.python/py-prompt.exp index ebe4cb6..1c53c03 100644 --- a/gdb/testsuite/gdb.python/py-prompt.exp +++ b/gdb/testsuite/gdb.python/py-prompt.exp @@ -80,15 +80,7 @@ gdb_test "python print (\"'\" + str(p\[0\]) + \"'\")" "'$gdb_prompt_fail '" \ "prompt_hook argument is default prompt. 2" gdb_exit -# Start the program running and then wait for a bit, to be sure -# that it can be attached to. -set testpid [eval exec $binfile &] -exec sleep 2 -if { [istarget "*-*-cygwin*"] } { - # testpid is the Cygwin PID, GDB uses the Windows PID, which might be - # different due to the way fork/exec works. - set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ] -} +set testpid [spawn_wait_for_attach $binfile] set GDBFLAGS [concat $tmp_gdbflags " -ex \"set pagination off\""] set GDBFLAGS [concat $GDBFLAGS " -ex \"set editing on\""] diff --git a/gdb/testsuite/gdb.python/py-sync-interp.exp b/gdb/testsuite/gdb.python/py-sync-interp.exp index b9b86bc..d62f966 100644 --- a/gdb/testsuite/gdb.python/py-sync-interp.exp +++ b/gdb/testsuite/gdb.python/py-sync-interp.exp @@ -41,15 +41,7 @@ if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } { return -1 } -# Start the program running and then wait for a bit, to be sure -# that it can be attached to. -set testpid [eval exec $binfile &] -exec sleep 2 -if { [istarget "*-*-cygwin*"] } { - # testpid is the Cygwin PID, GDB uses the Windows PID, which might be - # different due to the way fork/exec works. - set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ] -} +set testpid [spawn_wait_for_attach $binfile] # Test command 'where' is executed when command 'attach' is done, otherwise # function 'sleep' may not show up in backtrace. diff --git a/gdb/testsuite/gdb.server/ext-attach.exp b/gdb/testsuite/gdb.server/ext-attach.exp index 5f7bac4..9baeeb7 100644 --- a/gdb/testsuite/gdb.server/ext-attach.exp +++ b/gdb/testsuite/gdb.server/ext-attach.exp @@ -44,15 +44,7 @@ gdbserver_start_extended gdb_test_no_output "set remote exec-file $target_exec" "set remote exec-file" -# Start the program running and then wait for a bit, to be sure -# that it can be attached to. -set testpid [eval exec $binfile &] -exec sleep 2 -if { [istarget "*-*-cygwin*"] } { - # testpid is the Cygwin PID, GDB uses the Windows PID, which might be - # different due to the way fork/exec works. - set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ] -} +set testpid [spawn_wait_for_attach $binfile] gdb_test "attach $testpid" \ "Attaching to program: .*, process $testpid.*(in|at).*" \ diff --git a/gdb/testsuite/lib/gdb.exp b/gdb/testsuite/lib/gdb.exp index 7650d2a..e2ee110 100644 --- a/gdb/testsuite/lib/gdb.exp +++ b/gdb/testsuite/lib/gdb.exp @@ -3323,6 +3323,31 @@ proc gdb_exit { } { catch default_gdb_exit } +# Start a set of programs running and then wait for a bit, to be sure +# that they can be attached to. Return a list of the processes' PIDs. + +proc spawn_wait_for_attach { executable_list } { + set pid_list {} + + foreach {executable} $executable_list { + lappend pid_list [eval exec $executable &] + } + + sleep 2 + + if { [istarget "*-*-cygwin*"] } { + for {set i 0} {$i < [llength $pid_list]} {incr i} { + # testpid is the Cygwin PID, GDB uses the Windows PID, + # which might be different due to the way fork/exec works. + set testpid [lindex $pid_list $i] + set testpid [ exec ps -e | gawk "{ if (\$1 == $testpid) print \$4; }" ] + set pid_list [lreplace $pid_list $i $i $testpid] + } + } + + return $pid_list +} + # # gdb_load_cmd -- load a file into the debugger. # ARGS - additional args to load command.