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perf tools: Mark split kallsyms DSOs as loaded

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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: 2e538c4a18 ("perf tools: Improve kernel/modules symbol lookup")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
This commit is contained in:
Namhyung Kim
2025-12-02 15:57:14 -08:00
parent 405f5756bb
commit 7da4d60db3
1 changed files with 1 additions and 0 deletions
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tools/perf/util/symbol.c
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@@ -972,6 +972,7 @@ 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) {