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cmd/compile: keep variable declaration order in debug_info #31133

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dlsniper opened this issue Mar 29, 2019 · 8 comments
Open

cmd/compile: keep variable declaration order in debug_info #31133

dlsniper opened this issue Mar 29, 2019 · 8 comments
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compiler/runtime Issues related to the Go compiler and/or runtime. Debugging NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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Backlog

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@dlsniper
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Rather than adding DeclColumn info to debug_info, it would be great to write the variables in the declaration order. This would make it easier to display the variables in a predictable and consistent order while debugging and thus better align with the source code presentation.
@dlsniper dlsniper mentioned this issue Mar 29, 2019
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@ianlancetaylor
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The issue is labeled debug/dwarf, but are you asking for a change in the debug/dwarf package or a change in the compiler?

@aarzilli
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it's a change to the compiler, it should be labeled cmd/compile.

@dlsniper dlsniper changed the title debug/dwarf: keep variable declaration order in debug_info cmd/compile: keep variable declaration order in debug_info Mar 29, 2019
@dlsniper
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Updated, sorry, I don't particularly know these areas. Thank you for the heads-up.

@julieqiu julieqiu added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Apr 22, 2019
@julieqiu julieqiu added this to the Go1.13 milestone Apr 22, 2019
@julieqiu
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/cc @randall77

@randall77
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@dr2chase

@dr2chase
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I'll give this a look.

@dr2chase
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There's no test that verifies what you'd hope to be looking for, is there?

And is the intended outcome "better debugging, once the debuggers are adapted to this change"?

I thought I found the offending sort yesterday in an old CL, but it appears to have been moved since then.

@gopherbot
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Change https://golang.org/cl/173439 mentions this issue: cmd/compile: sort DWARF variable info by source position

@andybons andybons modified the milestones: Go1.13, Go1.14 Jul 8, 2019
@rsc rsc modified the milestones: Go1.14, Backlog Oct 9, 2019
@gopherbot gopherbot added the compiler/runtime Issues related to the Go compiler and/or runtime. label Jul 13, 2022
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Labels
compiler/runtime Issues related to the Go compiler and/or runtime. Debugging NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Projects
Go Compiler / Runtime
Status: Triage Backlog
Milestone
Backlog
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@rsc @aarzilli @andybons @dlsniper @dr2chase @ianlancetaylor @julieqiu @randall77 @gopherbot @heschi