6.18-stable review patch. If anyone has any objections, please let me know.
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From: Namhyung Kim namhyung@kernel.org
[ Upstream commit 7da4d60db33cccd8f4c445ab20bba71531435ee5 ]
The maps__split_kallsyms() will split symbols to module DSOs if it comes from a module. It also handled some unusual kernel symbols after modules by creating new kernel maps like "[kernel].0".
But they are pseudo DSOs to have those unexpected symbols. They should not be considered as unloaded kernel DSOs. Otherwise the dso__load() for them will end up calling dso__load_kallsyms() and then maps__split_kallsyms() again and again.
Reviewed-by: Ian Rogers irogers@google.com Fixes: 2e538c4a1847291cf ("perf tools: Improve kernel/modules symbol lookup") Signed-off-by: Namhyung Kim namhyung@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- tools/perf/util/symbol.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 948d3e8ad782b..aed65b1abe669 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -976,6 +976,7 @@ static int maps__split_kallsyms(struct maps *kmaps, struct dso *dso, u64 delta, return -1;
dso__set_kernel(ndso, dso__kernel(dso)); + dso__set_loaded(ndso);
curr_map = map__new2(pos->start, ndso); if (curr_map == NULL) {