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

[the42]

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]

Comment 1:

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

[rsc]

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]

Comment 3:

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

[rsc]

Comment 4:

Labels changed: added go1.1.

[minux]

Comment 5:

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

[rsc]

Comment 6:

Labels changed: added size-m.

[nightlyone]

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]

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]

Comment 9:

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

Labels changed: removed go1.1.

[rsc]

Comment 10:

Labels changed: added go1.3maybe.

[rsc]

Comment 11:

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

[rsc]

Comment 12:

Labels changed: added repo-main.

[robpike]

Comment 13:

Labels changed: added gdb.