debug/elf: duplicate llvm-dwarfdump entries in go1.18rc1 #51725
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chengruizhe
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chengruizhe
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Yup, that does indeed look buggy. I'll take a look. |
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Summary: 1. Add bpf tests for Go 1.18 2. Add a hack for the duplicate Dwarf entry issue: golang/go#51725 3. Address the naming convention change for return values in dwarf for Go 1.18. Test Plan: Original and newly added tests for Go 1.18. Reviewers: #stirling, yzhao Reviewed By: #stirling, yzhao Subscribers: oazizi, yzhao Signed-off-by: Ryan Cheng <rcheng@pixielabs.ai> Differential Revision: https://phab.corp.pixielabs.ai/D10966 GitOrigin-RevId: 63edf12
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@thanm This issue is marked for 1.19. Should it move to Backlog? Thanks. |
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Thanks Ian I'll move it. This one didn't make the cut for 1.19. |
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What version of Go are you using (
go version)?go 1.18rc1
Does this issue reproduce with the latest release?
Only with go 1.18
What operating system and processor architecture are you using (
go env)?linux_amd64
What did you do?
I compiled the linked
https_server.gowith go 1.18rc1, andllvm-dwarfdump https_serverto inspect the debug info.Search for
DW_AT_name ("crypto/tls.(*Conn).Write").What did you expect to see?
I expect the
DW_TAG_formal_parameterfor return values~r0and~r1to appear only once in the dwarfdump.https_server.zip
What did you see instead?
The
DW_TAG_formal_parameterfor return values~r0and~r1are duplicated in the dwarfdump.In go1.17, this doesn't seem to happen.
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