From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnaldo Carvalho de Melo Subject: [PATCH 03/10] perf test shell vfs_getname: Skip for tools built with NO_LIBDWARF=1 Date: Wed, 16 Aug 2017 17:20:43 -0300 Message-ID: <20170816202050.8865-4-acme@kernel.org> References: <20170816202050.8865-1-acme@kernel.org> Return-path: In-Reply-To: <20170816202050.8865-1-acme@kernel.org> Sender: linux-kernel-owner@vger.kernel.org To: Ingo Molnar Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, Arnaldo Carvalho de Melo , Adrian Hunter , David Ahern , Jiri Olsa , Michael Petlan , Namhyung Kim , Thomas Richter , Wang Nan List-Id: linux-perf-users.vger.kernel.org From: Arnaldo Carvalho de Melo If that is the case, or if the required lib is not present, e.g. elfutils-devel in Fedora systems, then just skip the tests requiring DWARF analysis. Before: # rpm -e elfutils-devel # perf test ping vfs_getname 60: Use vfs_getname probe to get syscall args filenames : FAILED! 61: probe libc's inet_pton & backtrace it with ping : Ok 62: Check open filename arg using perf trace + vfs_getname: FAILED! 63: Add vfs_getname probe to get syscall args filenames : FAILED! # After: # perf test vfs_getname 60: Use vfs_getname probe to get syscall args filenames : Skip 62: Check open filename arg using perf trace + vfs_getname: Skip 63: Add vfs_getname probe to get syscall args filenames : Skip # Then, reinstalling elfutils-devel, rebuilding the tool and running again: # perf test vfs_getname 60: Use vfs_getname probe to get syscall args filenames : Ok 62: Check open filename arg using perf trace + vfs_getname: Ok 63: Add vfs_getname probe to get syscall args filenames : Ok # Reported-by: Kim Phillips Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Michael Petlan Cc: Namhyung Kim Cc: Thomas Richter Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-d67tvn401fxrwr97pu5ihfb1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/tests/shell/lib/probe_vfs_getname.sh | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/perf/tests/shell/lib/probe_vfs_getname.sh b/tools/perf/tests/shell/lib/probe_vfs_getname.sh index 46c1bb707600..f832395daad7 100644 --- a/tools/perf/tests/shell/lib/probe_vfs_getname.sh +++ b/tools/perf/tests/shell/lib/probe_vfs_getname.sh @@ -12,12 +12,12 @@ cleanup_probe_vfs_getname() { add_probe_vfs_getname() { local verbose=$1 if [ $had_vfs_getname -eq 1 ] ; then - line=$(perf probe -L getname_flags | egrep 'result.*=.*filename;' | sed -r 's/[[:space:]]+([[:digit:]]+)[[:space:]]+result->uptr.*/\1/') - perf probe $verbose "vfs_getname=getname_flags:${line} pathname=result->name:string" + line=$(perf probe -L getname_flags |& egrep 'result.*=.*filename;' | sed -r 's/[[:space:]]+([[:digit:]]+)[[:space:]]+result->uptr.*/\1/') + perf probe $verbose "vfs_getname=getname_flags:${line} pathname=result->name:string" fi } skip_if_no_debuginfo() { - add_probe_vfs_getname -v 2>&1 | grep -q "^Failed to find the path for kernel" && return 2 + add_probe_vfs_getname -v 2>&1 | egrep -q "^(Failed to find the path for kernel|Debuginfo-analysis is not supported)" && return 2 return 1 } -- 2.13.5