{"id":2227987,"url":"http://patchwork.ozlabs.org/api/patches/2227987/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260424172435.91725-1-atrajeev@linux.ibm.com/","project":{"id":2,"url":"http://patchwork.ozlabs.org/api/projects/2/?format=json","name":"Linux PPC development","link_name":"linuxppc-dev","list_id":"linuxppc-dev.lists.ozlabs.org","list_email":"linuxppc-dev@lists.ozlabs.org","web_url":"https://github.com/linuxppc/wiki/wiki","scm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git","webscm_url":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/","list_archive_url":"https://lore.kernel.org/linuxppc-dev/","list_archive_url_format":"https://lore.kernel.org/linuxppc-dev/{}/","commit_url_format":"https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}"},"msgid":"<20260424172435.91725-1-atrajeev@linux.ibm.com>","list_archive_url":"https://lore.kernel.org/linuxppc-dev/20260424172435.91725-1-atrajeev@linux.ibm.com/","date":"2026-04-24T17:24:35","name":"[V3] tools/perf/tests: Update test_adding_kernel.sh to handle proper debuginfo check","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"02bef7323a076824c0981007daf0dece034a2ec5","submitter":{"id":90290,"url":"http://patchwork.ozlabs.org/api/people/90290/?format=json","name":"Athira Rajeev","email":"atrajeev@linux.ibm.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20260424172435.91725-1-atrajeev@linux.ibm.com/mbox/","series":[{"id":501395,"url":"http://patchwork.ozlabs.org/api/series/501395/?format=json","web_url":"http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=501395","date":"2026-04-24T17:24:35","name":"[V3] tools/perf/tests: Update test_adding_kernel.sh to handle proper debuginfo check","version":3,"mbox":"http://patchwork.ozlabs.org/series/501395/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2227987/comments/","check":"success","checks":"http://patchwork.ozlabs.org/api/patches/2227987/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n 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adrian.hunter@intel.com,\n mpetlan@redhat.com, tmricht@linux.ibm.com, maddy@linux.ibm.com,\n irogers@google.com, namhyung@kernel.org","Cc":"linux-perf-users@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,\n atrajeev@linux.ibm.com, hbathini@linux.vnet.ibm.com,\n Tejas.Manhas1@ibm.com, Tanushree.Shah@ibm.com, Shivani.Nittor@ibm.com","Subject":"[PATCH V3] tools/perf/tests: Update test_adding_kernel.sh to handle\n proper debuginfo check","Date":"Fri, 24 Apr 2026 22:54:35 +0530","Message-Id":"<20260424172435.91725-1-atrajeev@linux.ibm.com>","X-Mailer":"git-send-email 2.39.5 (Apple Git-154)","X-Mailing-List":"linuxppc-dev@lists.ozlabs.org","List-Id":"","List-Help":"","List-Owner":"","List-Post":"","List-Archive":",\n ","List-Subscribe":",\n ,\n ","List-Unsubscribe":"","Precedence":"list","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-TM-AS-GCONF":"00","X-Proofpoint-Reinject":"loops=2 maxloops=12","X-Proofpoint-GUID":"YjCa_2gnaxastfQMauDVt-2uALpe3MT1","X-Proofpoint-ORIG-GUID":"SNk5dnMaD0qg3b5xw5IHv1twqOHt33c-","X-Proofpoint-Spam-Details-Enc":"AW1haW4tMjYwNDI0MDE2OCBTYWx0ZWRfXy2vPscDy0r2z\n wx6fyETH5tQmEqA0QMLcrpSs4llFo07WIZ5GJV5yFfucWbZ3KuAOnGRVXRWu011zhvNkQuUfQGj\n 3z+Sc5uApnyhICJEkAkI/+OPNMuxqGlUpYL01zBDFOxSmavaFK4h2DfXBhy2JI9sTKD/tUzPQ0A\n PS0/+hBb/vIfMPGGmbn9YbUwewJo64dm9K19OZ7b+2uY2sxk2QoGfAuYVJAJxOg0LPf2CdxjXzw\n +ZbuGcUfk+f/4rHxj+j3+mS4AdilGv3U+IkmC83gF71/zF1t8BZUCaGXsZvJPTdI/DykEqGfe8Y\n Cdu6bMV3O4N19AJPXg74e661YJ50jrvPBOBymdgdS+3kRpDRwPuSC48frHpWRt0P5AH+1k/6mW+\n J5kaXgmPcggTn+ZIyLlvbFH0ZHCj5ONV2Xa2AWQ0ZOumBdJOOs1FxdNf2t+pOiNzq5hyhFhBlqB\n zl1wTsZ1cLrxuVA8WGg==","X-Authority-Analysis":"v=2.4 cv=SJxykuvH c=1 sm=1 tr=0 ts=69eba75f cx=c_pps\n a=3Bg1Hr4SwmMryq2xdFQyZA==:117 a=3Bg1Hr4SwmMryq2xdFQyZA==:17\n a=A5OVakUREuEA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22\n a=uAbxVGIbfxUO_5tXvNgY:22 a=VnNF1IyMAAAA:8 a=1XWaLZrsAAAA:8\n a=E34RJTyr9ZXJz0s_rhIA:9","X-Proofpoint-Virus-Version":"vendor=baseguard\n engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.51,FMLib:17.12.100.49\n definitions=2026-04-24_02,2026-04-21_02,2025-10-01_01","X-Proofpoint-Spam-Details":"rule=outbound_notspam policy=outbound score=0\n priorityscore=1501 suspectscore=0 malwarescore=0 impostorscore=0 bulkscore=0\n lowpriorityscore=0 phishscore=0 clxscore=1015 adultscore=0 spamscore=0\n classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0\n reason=mlx scancount=1 engine=8.22.0-2604200000 definitions=main-2604240168","X-Spam-Status":"No, score=-0.7 required=3.0 tests=DKIM_SIGNED,DKIM_VALID,\n\tRCVD_IN_DNSWL_LOW,RCVD_IN_MSPIKE_H4,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,\n\tSPF_PASS autolearn=disabled version=4.0.1 OzLabs 8","X-Spam-Checker-Version":"SpamAssassin 4.0.1 (2024-03-25) on lists.ozlabs.org"},"content":"Perf test perftool-testsuite_probe fails as below:\n\n Regexp not found: \"\\s*probe:inode_permission(?:_\\d+)?\\s+\\(on inode_permission(?:[:\\+][0-9A-Fa-f]+)?@.+\\)\"\n -- [ FAIL ] -- perf_probe :: test_adding_kernel :: listing added probe :: perf probe -l (output regexp parsing)\n -- [ PASS ] -- perf_probe :: test_adding_kernel :: removing multiple probes\n Regexp not found: \"probe:vfs_mknod\"\n Regexp not found: \"probe:vfs_create\"\n Regexp not found: \"probe:vfs_rmdir\"\n Regexp not found: \"probe:vfs_link\"\n Regexp not found: \"probe:vfs_write\"\n -- [ FAIL ] -- perf_probe :: test_adding_kernel :: wildcard adding support (command exitcode + output regexp parsing)\n Regexp not found: \"somenonexistingrandomstuffwhichisalsoprettylongorevenlongertoexceed64\"\n Regexp not found: \"in this function|at this address\"\n -- [ FAIL ] -- perf_probe :: test_adding_kernel :: non-existing variable (output regexp parsing)\n ## [ FAIL ] ## perf_probe :: test_adding_kernel SUMMARY :: 3 failures found\n\nFurther analysing, the failed testcase is for \"test_adding_kernel\".\nIf the kernel debuginfo is missing, perf probe fails as below:\n\nperf probe -nf --max-probes=512 -a 'vfs_* $params'\nFailed to find the path for the kernel: No such file or directory\n Error: Failed to add events.\n\nskip_if_no_debuginfo has check to handle whether debuginfo is present\nand the testcase checks for debuginfo since this :\ncommit 90d32e92011e (\"tools/perf: Handle perftool-testsuite_probe\ntestcases fail when kernel debuginfo is not present\")\n\nRecently a change got added in \"tests/shell/lib/probe_vfs_getname.sh\"\nvia this another fix:\ncommit 92b664dcefab (\"perf test probe_vfs_getname: Skip if no suitable\nline detected\")\nSince this commit, first add_probe_vfs_getname is used to prevent false\nfailures. And based on return code of add_probe_vfs_getname, skip_if_no_debuginfo\nis used to skip testcase if debuginfo is present. And this modified other\ntestcases to call add_probe_vfs_getname first and invoke\nskip_if_no_debuginfo based on return value.\n\nThe tests in test_adding_kernel.sh which depends on presence of\ndebuginfo are:\n1. probe add for inode_permission\n2. probe max-probes option using 'vfs_* $params'\n3. non-existing variable probing\n\nFor these tests, probe check for specific line is not required.\nSo call skip_if_no_debuginfo with argument to say if line check is\nneeded. This is to convey to skip_if_no_debuginfo() function\nthat test only needs to check for debuginfo, and not specifically\nline number. Update skip_if_no_debuginfo to use simple \"perf probe\"\ncheck if test only needs to check for debuginfo. And for other\ntests which rely on line number, use add_probe_vfs_getname()\nUpdate other places which uses skip_if_no_debuginfo to use argument\nas zero.\n\nWith the change, verified that only three which required debuginfo only\nis skipped and others ran successfully. Also tested with debuginfo\nto make sure tests are not skipped.\n\nReported-by: Tejas Manhas \nReviewed-by: Ian Rogers \nSigned-off-by: Athira Rajeev \n---\nChangelog:\nv2 -> v3:\n- Update other callsites to use \"skip_if_no_debuginfo 0\"\n- Use \"perf probe -vn --add inode_permission $params\"\n\nv1 -> v2:\n- First version used \"perf probe -v -L getname_flags\" for debuginfo\n check. This will not catch fail string \"Debuginfo-analysis is not\nsupported\" which is used in cases when perf is built without dwarf.\n So use \"perf probe -vn add inode_permission\" to capture cases when\n tools built with NO_LIBDWARF=1. This will capture debuginfo missing as\nwell as tool built without dwarf case.\n\n .../tests/shell/base_probe/test_adding_kernel.sh | 15 ++++++++++++++-\n tools/perf/tests/shell/lib/probe_vfs_getname.sh | 13 ++++++++++++-\n tools/perf/tests/shell/probe_vfs_getname.sh | 7 ++++++-\n .../shell/record+script_probe_vfs_getname.sh | 7 ++++++-\n tools/perf/tests/shell/trace+probe_vfs_getname.sh | 7 ++++++-\n 5 files changed, 44 insertions(+), 5 deletions(-)","diff":"diff --git a/tools/perf/tests/shell/base_probe/test_adding_kernel.sh b/tools/perf/tests/shell/base_probe/test_adding_kernel.sh\nindex 555a825d55f2..f3db125c8669 100755\n--- a/tools/perf/tests/shell/base_probe/test_adding_kernel.sh\n+++ b/tools/perf/tests/shell/base_probe/test_adding_kernel.sh\n@@ -23,10 +23,23 @@ TEST_RESULT=0\n . \"$DIR_PATH/../lib/probe_vfs_getname.sh\"\n \n TEST_PROBE=${TEST_PROBE:-\"inode_permission\"}\n+PROBE_NO_LINE_CHECK=1\n \n # set NO_DEBUGINFO to skip testcase if debuginfo is not present\n # skip_if_no_debuginfo returns 2 if debuginfo is not present\n-skip_if_no_debuginfo\n+#\n+# The perf probe checks which depends on presence of debuginfo and\n+# used in this testcase are:\n+# 1. probe add for inode_permission\n+# 2. probe max-probes option using 'vfs_* $params'\n+# 3. non-existing variable probing\n+#\n+# For these tests, probe check for specific line is not\n+# required ( add_probe_vfs_getname does that ). So call\n+# skip_if_no_debuginfo with argument as 1. This is to convey\n+# that test only needs to check for debuginfo, and not specifically\n+# line number\n+skip_if_no_debuginfo $PROBE_NO_LINE_CHECK\n if [ $? -eq 2 ]; then\n \tNO_DEBUGINFO=1\n fi\ndiff --git a/tools/perf/tests/shell/lib/probe_vfs_getname.sh b/tools/perf/tests/shell/lib/probe_vfs_getname.sh\nindex 88cd0e26d5f6..2c5252a38ea1 100644\n--- a/tools/perf/tests/shell/lib/probe_vfs_getname.sh\n+++ b/tools/perf/tests/shell/lib/probe_vfs_getname.sh\n@@ -39,7 +39,18 @@ add_probe_vfs_getname() {\n }\n \n skip_if_no_debuginfo() {\n-\tadd_probe_vfs_getname -v 2>&1 | grep -E -q \"^(Failed to find the path for the kernel|Debuginfo-analysis is not supported)|(file has no debug information)\" && return 2\n+\tno_line_check=$1\n+\tdebug_str=\"^(Failed to find the path for the kernel|Debuginfo-analysis is not supported)|(file has no debug information)\"\n+\n+\t# search for debug_str using simple perf probe if the\n+\t# test only needs to check for debuginfo, and not specifically\n+\t# line number.\n+\tif [ $no_line_check -eq 1 ]; then\n+\t\tperf probe -vn --add 'inode_permission $params' 2>&1 | grep -E -q \"$debug_str\" && return 2\n+\telse\n+\t\tadd_probe_vfs_getname -v 2>&1 | grep -E -q \"$debug_str\" && return 2\n+\tfi\n+\n \treturn 1\n }\n \ndiff --git a/tools/perf/tests/shell/probe_vfs_getname.sh b/tools/perf/tests/shell/probe_vfs_getname.sh\nindex 5fe5682c28ce..b0878f571449 100755\n--- a/tools/perf/tests/shell/probe_vfs_getname.sh\n+++ b/tools/perf/tests/shell/probe_vfs_getname.sh\n@@ -16,8 +16,13 @@ skip_if_no_perf_probe || exit 2\n add_probe_vfs_getname\n err=$?\n \n+# Invoke skip_if_no_debuginfo with argument as 0,\n+# since the test needs suitable line number for getname\n+# along with debuginfo check.\n+# Argument \"1\" is used when to convey that test only needs to\n+# check for debuginfo, and not specifically line number.\n if [ $err -eq 1 ] ; then\n-\tskip_if_no_debuginfo\n+\tskip_if_no_debuginfo 0\n \terr=$?\n fi\n \ndiff --git a/tools/perf/tests/shell/record+script_probe_vfs_getname.sh b/tools/perf/tests/shell/record+script_probe_vfs_getname.sh\nindex 002f7037f182..48063fc2b221 100755\n--- a/tools/perf/tests/shell/record+script_probe_vfs_getname.sh\n+++ b/tools/perf/tests/shell/record+script_probe_vfs_getname.sh\n@@ -38,8 +38,13 @@ perf_script_filenames() {\n add_probe_vfs_getname\n err=$?\n \n+# Invoke skip_if_no_debuginfo with argument as 0,\n+# since the test needs suitable line number for getname\n+# along with debuginfo check.\n+# Argument \"1\" is used when to convey that test only needs to\n+# check for debuginfo, and not specifically line number.\n if [ $err -eq 1 ] ; then\n- skip_if_no_debuginfo\n+ skip_if_no_debuginfo 0\n err=$?\n fi\n \ndiff --git a/tools/perf/tests/shell/trace+probe_vfs_getname.sh b/tools/perf/tests/shell/trace+probe_vfs_getname.sh\nindex 7a0b1145d0cd..6833fba12086 100755\n--- a/tools/perf/tests/shell/trace+probe_vfs_getname.sh\n+++ b/tools/perf/tests/shell/trace+probe_vfs_getname.sh\n@@ -28,8 +28,13 @@ trace_open_vfs_getname() {\n add_probe_vfs_getname\n err=$?\n \n+# Invoke skip_if_no_debuginfo with argument as 0,\n+# since the test needs suitable line number for getname\n+# along with debuginfo check.\n+# Argument \"1\" is used when to convey that test only needs to\n+# check for debuginfo, and not specifically line number.\n if [ $err -eq 1 ] ; then\n- skip_if_no_debuginfo\n+ skip_if_no_debuginfo 0\n err=$?\n fi\n \n","prefixes":["V3"]}