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| author | Cody P Schafer <cody@linux.vnet.ibm.com> | 2012-08-10 22:23:01 (GMT) |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-08-13 17:41:33 (GMT) |
| commit | 261360b6e90a782f0a63d8f61a67683c376c88cf (patch) | |
| tree | 81df91bf3b8f5f9133b105db5037850817284747 /tools/perf/util/symbol.c | |
| parent | d26cd12b46cb6b5595143804b43ba5aa7968551e (diff) | |
| download | linux-261360b6e90a782f0a63d8f61a67683c376c88cf.tar.xz | |
perf symbols: Convert dso__load_syms to take 2 symsrc's
To properly handle platforms with an opd section, both a runtime image
(which contains the opd section but possibly lacks symbols) and a symbol
image (which probably lacks an opd section but has symbols).
The next patch ("perf symbol: use both runtime and debug images")
adjusts the callsite in dso__load() to take advantage of being able to
pass both runtime & debug images.
Assumptions made here:
- The opd section, if it exists in the runtime image, has headers in
both the runtime image and the debug/syms image.
- The index of the opd section (again, only if it exists in the runtime
image) is the same in both the runtime and debug/symbols image.
Both of these are true on RHEL, but it is unclear how accurate they are
in general (on platforms with function descriptors in opd sections).
Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: David Hansen <dave@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Matt Hellsley <matthltc@us.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1344637382-22789-16-git-send-email-cody@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/symbol.c')
| -rw-r--r-- | tools/perf/util/symbol.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 8e7d74f..739e5a3 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -1094,7 +1094,7 @@ restart: continue; } - ret = dso__load_sym(dso, map, &ss, filter, 0); + ret = dso__load_sym(dso, map, &ss, &ss, filter, 0); /* * Some people seem to have debuginfo files _WITHOUT_ debug @@ -1380,7 +1380,7 @@ int dso__load_vmlinux(struct dso *dso, struct map *map, if (symsrc__init(&ss, dso, symfs_vmlinux, symtab_type)) return -1; - err = dso__load_sym(dso, map, &ss, filter, 0); + err = dso__load_sym(dso, map, &ss, &ss, filter, 0); symsrc__destroy(&ss); if (err > 0) { |