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: 694bf407b0
("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>
This commit is contained in:
parent
c97b40e4d1
commit
432746f8e0
|
@ -1136,8 +1136,8 @@ new_symbol:
|
|||
* For misannotated, zeroed, ASM function sizes.
|
||||
*/
|
||||
if (nr > 0) {
|
||||
symbols__fixup_duplicate(&dso->symbols[map->type]);
|
||||
symbols__fixup_end(&dso->symbols[map->type]);
|
||||
symbols__fixup_duplicate(&dso->symbols[map->type]);
|
||||
if (kmap) {
|
||||
/*
|
||||
* We need to fixup this here too because we create new
|
||||
|
|
|
@ -1243,8 +1243,8 @@ int __dso__load_kallsyms(struct dso *dso, const char *filename,
|
|||
if (kallsyms__delta(map, filename, &delta))
|
||||
return -1;
|
||||
|
||||
symbols__fixup_duplicate(&dso->symbols[map->type]);
|
||||
symbols__fixup_end(&dso->symbols[map->type]);
|
||||
symbols__fixup_duplicate(&dso->symbols[map->type]);
|
||||
|
||||
if (dso->kernel == DSO_TYPE_GUEST_KERNEL)
|
||||
dso->symtab_type = DSO_BINARY_TYPE__GUEST_KALLSYMS;
|
||||
|
|
Loading…
Reference in a new issue