golang/go

runtime/pprof: provide memory mapping info on macOS

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#19,790 opened on Mar 30, 2017

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NeedsFixOS-Darwincompiler/runtimehelp wanted

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Description

Noticed during google/pprof#120

https://github.com/golang/go/blob/master/src/runtime/pprof/proto.go#L370 depends on /proc/self/maps which results in missing memory mapping info in profile data from non-linux system (e.g. OSX).

Provide it to help offline symbolization for non-Go symbols.

Contributor guide

Research direction
Investigate how to obtain memory mapping information on macOS (e.g., using mach vm region or vmmap) and implement it in runtime/pprof/proto.go.
Tech stack
go
Domain
backend
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
Go
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
40