Messages in this thread | | | Date | Sat, 29 Jul 2023 12:59:50 +0200 | Subject | Re: [PATCH] perf probe: skip test_uprobe_from_different_cu if there is no gcc | From | Georg Müller <> |
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Am 29.07.23 um 02:38 schrieb Masami Hiramatsu (Google): > > Interesting, so clang will not generate DWARF or perf probe is not able to > handle clang generated DWARF? >
clang does not accept mixed -flto and non-lto CUs and the problem is not reproducible by this sample code using clang if using -flto for all CUs. There might be (bigger?) examples where the same issue is triggered by clang and bigger examples (like systemd on fedora) where I ran into the bug, but this small example only shows the problem when using gcc and mixing -flto and non-lto CUs.
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