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authorAdrian Hunter <adrian.hunter@intel.com>2022-07-11 12:32:05 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2022-07-20 11:08:37 -0300
commita5367ecb5353fbf28bfd3979fc4f61ddebec80b1 (patch)
treeeed8b8c2b6de100c6c798a4b70e19d469bd0ffe8 /tools/perf/util/session.c
parentperf tools: Make has_kcore_dir() work also for guest kcore_dir (diff)
downloadlinux-dev-a5367ecb5353fbf28bfd3979fc4f61ddebec80b1.tar.xz
linux-dev-a5367ecb5353fbf28bfd3979fc4f61ddebec80b1.zip
perf tools: Automatically use guest kcore_dir if present
When registering a guest machine using machine_pid from the id index, check perf.data for a matching kcore_dir subdirectory and set the kallsyms file name accordingly. If set, use it to find the machine's kernel symbols and object code (from kcore). Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Ian Rogers <irogers@google.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: kvm@vger.kernel.org Link: https://lore.kernel.org/r/20220711093218.10967-23-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to '')
-rw-r--r--tools/perf/util/session.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 7ea0b91013ea..98e16659a149 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -2772,6 +2772,8 @@ static int perf_session__register_guest(struct perf_session *session, pid_t mach
return -ENOMEM;
thread__put(thread);
+ machine->kallsyms_filename = perf_data__guest_kallsyms_name(session->data, machine_pid);
+
return 0;
}