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doc: ref/gdb should mention compiler flags / go install -gcflags #3363

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the42 opened this issue Mar 21, 2012 · 14 comments
Closed

doc: ref/gdb should mention compiler flags / go install -gcflags #3363

the42 opened this issue Mar 21, 2012 · 14 comments
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@the42
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the42 commented Mar 21, 2012 

The Documentation of Debugging Go Code
(eg. http://tip.golang.org/ref/gdb)
should mention the -N and -l* flags. Both are useful (and in case of a consistent
picture on local variables) essential.

As the go tool has settled it would also make sense to mention

go build|install|... -gcflags '-N -l'

(Btw. the documentation does mention the "-s" flag to omit debug info, so it
should mention the others influencing debug behavior too)
@ianlancetaylor
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Comment 1:

Labels changed: added priority-go1, removed priority-triage.

@rsc
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rsc commented Mar 26, 2012

Comment 2:

You need -a for these to really take effect.
And you need -a again when they get undone.
Assigning to adg to do or postpone.

Owner changed to @adg.

Status changed to Accepted.

@adg
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adg commented Mar 26, 2012

Comment 3:

Labels changed: added priority-later, removed priority-go1.

@rsc
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rsc commented Sep 12, 2012

Comment 4:

Labels changed: added go1.1.

@minux
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minux commented Oct 1, 2012

Comment 5:

revision be7e338a8960 (also in release branch) already mentions
the required -gcflags, should this issue be regarded as fixed?

@rsc
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rsc commented Dec 10, 2012

Comment 6:

Labels changed: added size-m.

@nightlyone
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Comment 7:

What about adding a -debug flag to the build related list of flags? That might also ease
maintaining all the required knobs.

@the42
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the42 commented Apr 1, 2013

Comment 8:

A good idea as long as the optimisation knobs remain that limited, which
nobody can envision.
Think of gcc --debug: there are some safe settings, whereas others only
make sense when knowing the optimisation settings.
I would rather like to see a go debug, which sets the corresponding knobs
and invokes the platform default debuger, in case of an unambiguous main.
Am 01.04.2013 12:23 schrieb <go@googlecode.com>:

@robpike
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robpike commented Apr 3, 2013

Comment 9:

Marking as after Go 1.1. The main topic of the issue is resolved.

Labels changed: removed go1.1.

@rsc
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rsc commented Nov 27, 2013

Comment 10:

Labels changed: added go1.3maybe.

@rsc
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rsc commented Dec 4, 2013

Comment 11:

Labels changed: added release-none, removed go1.3maybe.

@rsc
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rsc commented Dec 4, 2013

Comment 12:

Labels changed: added repo-main.

@robpike
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robpike commented Mar 5, 2014

Comment 13:

Labels changed: added gdb.

@the42 the42 assigned adg Mar 5, 2014
@rsc rsc added this to the Unplanned milestone Apr 10, 2015
@adg adg removed their assignment May 27, 2016
@odeke-em
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odeke-em commented Feb 8, 2020

Thank you for the report and for the patience @the42, as well as others for the triage and responses.

So that page no longer exists, but now we’ve got references for “Debugging with GDB” https://golang.org/doc/gdb#Introduction as well as “Diagnostics” and under the section “Debugging” https://golang.org/doc/diagnostics.html?h=gdb#debugging where we mention -gcflags=‘-N -l’
BD5B06C2-F772-4050-A28A-D89F30702E3B
E499BA69-41C6-4F1B-A658-415AED256D00

Thus I shall close this issue.

@odeke-em odeke-em closed this as completed Feb 8, 2020
@golang golang locked and limited conversation to collaborators Feb 7, 2021
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@rsc @minux @the42 @nightlyone @ianlancetaylor @robpike @odeke-em @adg @gopherbot