Skip unsymbolizable mapping during symbolz pass #368
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aalexand
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@@ Coverage Diff @@
## master #368 +/- ##
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- Coverage 66.68% 66.67% -0.02%
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Files 36 36
Lines 7454 7456 +2
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Hits 4971 4971
- Misses 2081 2082 +1
- Partials 402 403 +1
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nolanmar511
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May 1, 2018
KISSMonX
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* 'master' of github.com:google/pprof: (32 commits) record diff base profile label key/value constant (google#384) apply additional command overrides based on report format (google#381) profile: fix legacy format Go heap profile parsing (google#382) add -diff flag for better profile comparision (google#369) Use -u flag in pprof installation command so that it updates if needed. (google#376) Add GetBase support for ASLR kernel mappings (google#371) Add show_from profile filter. (google#372) Update README.md due to 8dff45d (google#375) Remove stale docs, move useful ones. (google#374) internal/driver: skip tests requiring tcp on js (google#373) Add "trim path" option which can be used to relocate sources. (google#366) Move update_d3flamegraph.sh script from the root directory. (google#370) Skip unsymbolizable mapping during symbolz pass. (google#368) remove -positive_percentages flag (google#365) Render icicle graph in "Flame Graph" view (google#367) Add command-line editing support for interactive pprof (google#362) Improve profile filter unit tests, fix show filtering of mappings (google#354) Fake mappings should be merged into a single one during merging (google#357) Hack the code so that both existing Go versions and current Go master format it the same (google#358) moved filter tests into their own test file which matches the implementation file, filter.go. (google#356) ...
gmarin13
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aalexand
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Oct 18, 2024
We added skipping unsymbolizable mappings in symbolz long time ago in PR google#368 to address google#339 where we saw error like "unexpected negative adjusted address". But that error was fixed in a more proper way in subsequent google#397 to fix another reported issue google#280 (and internal b/32020573). So skipping unsymbolized mappings shouldn't be needed anymore. I tested this by verifying that the test case from google#339 still works fine with the proposed change. And that it does fail if I roll back google#397 locally. This change is useful as we experiment with using symbolz to symbolize JIT locations from //anon (which is unsymbolizable per current terminology).
aalexand
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Oct 23, 2024
We added skipping unsymbolizable mappings in symbolz long time ago in PR #368 to address #339 where we saw error like "unexpected negative adjusted address". But that error was fixed in a more proper way in subsequent #397 to fix another reported issue #280 (and internal b/32020573). So skipping unsymbolized mappings shouldn't be needed anymore. I tested this by verifying that the test case from #339 still works fine with the proposed change. And that it does fail if I roll back #397 locally. This change is useful as we experiment with using symbolz to symbolize JIT locations from //anon (which is unsymbolizable per current terminology). Co-authored-by: Maggie Nolan Edmonds <nolanmar@google.com>
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