Fixes 77527 - Build unstripped binaries on-demand

[YoubingLi]

What type of PR is this?
/kind bug

What this PR does / why we need it:
Build un-stripped binaries on-demand

Which issue(s) this PR fixes:

Fixes #77527

Special notes for your reviewer:

If the user prefers to build un-stripped binaries, "-s" and "-w" are ignored in ldflags even they have been specified in GOLDFLAGS

Does this PR introduce a user-facing change?:
NONE

     NONE

/assign @dims
/assign @cblecker

[k8s-ci-robot]

Hi @YoubingLi. Thanks for your PR.

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[spiffxp]

/ok-to-test
/priority important-soon
/sig release

[neolit123]

where do -N and -l come from. i can't seem to find them under:
https://golang.org/cmd/link/

[YoubingLi]

@neolit123

The user specified in GOGCFLAGS and please refer the explaination in Makefile from Line 81 to Line 84

https://github.com/kubernetes/kubernetes/blob/master/build/root/Makefile#L81~L84

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: YoubingLi
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[dims]

/close

please see comment in #77527 (comment)

[k8s-ci-robot]

@dims: Closed this PR.

In response to this:

/close

please see comment in #77527 (comment)

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