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authorArnaldo Carvalho de Melo <acme@redhat.com>2016-09-01 14:00:23 (GMT)
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-09-01 15:42:24 (GMT)
commit432746f8e0b6a82ba832b771afe31abd51af6752 (patch)
treefd97512e09ccf8aefea9e68620835f850e146f00 /tools/perf/util/probe-event.h
parentc97b40e4d15f13a36cd037d598e45cbe9e1e5757 (diff)
downloadlinux-432746f8e0b6a82ba832b771afe31abd51af6752.tar.xz
perf symbols: Fixup symbol sizes before picking best ones
When we call symbol__fixup_duplicate() we use algorithms to pick the "best" symbols for cases where there are various functions/aliases to an address, and those check zero size symbols, which, before calling symbol__fixup_end() are _all_ symbols in a just parsed kallsyms file. So first fixup the end, then fixup the duplicates. Found while trying to figure out why 'perf test vmlinux' failed, see the output of 'perf test -v vmlinux' to see cases where the symbols picked as best for vmlinux don't match the ones picked for kallsyms. Cc: Anton Blanchard <anton@samba.org> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Fixes: 694bf407b061 ("perf symbols: Add some heuristics for choosing the best duplicate symbol") Link: http://lkml.kernel.org/n/tip-rxqvdgr0mqjdxee0kf8i2ufn@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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