[go/release-branch.go1.25] [release-branch.go1.25] runtime: initialise debug settings much earlier in startup process

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Carlos Amedee (Gerrit)

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12:39 PM (10 hours ago) 12:39 PM

to Steve Muir, goph...@pubsubhelper.golang.org, golang-...@googlegroups.com, Go LUCI, Cherry Mui, Michael Knyszek, golang-co...@googlegroups.com

Carlos Amedee submitted the change

Change information

Commit message:

[release-branch.go1.25] runtime: initialise debug settings much earlier in startup process

This is necessary specifically to set the value of `debug.decoratemappings`
sufficiently early in the startup sequence that all memory ranges allocated
can be named appropriately using the new Linux-specific naming API
introduced in #71546.

Example output (on ARM64):
https://gist.github.com/9muir/3667654b9c3f52e8be92756219371672

For: #75324
Fixes #75669

Change-Id: Ic0b16233f54a45adef1660c4d0df59af2f5af86a
Reviewed-on: https://go-review.googlesource.com/c/go/+/703476
Auto-Submit: Michael Knyszek <mkny...@google.com>
LUCI-TryBot-Result: Go LUCI <golang...@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Michael Knyszek <mkny...@google.com>
(cherry picked from commit 300d9d2714164e455abc7990d52de9de6b084df1)
Reviewed-on: https://go-review.googlesource.com/c/go/+/708359
Reviewed-by: Cherry Mui <cher...@google.com>

Files:

A src/runtime/decoratemappings_test.go
M src/runtime/export_test.go
M src/runtime/proc.go
M src/runtime/runtime1.go
M src/runtime/set_vma_name_linux.go
M src/runtime/set_vma_name_stub.go

Change size: M

Delta: 6 files changed, 109 insertions(+), 14 deletions(-)

Branch: refs/heads/release-branch.go1.25

Submit Requirements:

Code-Review: +2 by Cherry Mui
TryBots-Pass: LUCI-TryBot-Result+1 by Go LUCI

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