[dev.cc] code review 172510043: runtime: fix GODEBUG processing

runtime: fix GODEBUG processing Right now it fails with: $ GODEBUG="allocfreetrace=1,efence=1" `which go` Segmentation fault: 11 It appears there's a bug in the initialization order of global variables. dbgvars is initialized before debug, even though dbgvars references fields of debug, like debug.allocfreetrace. This caused dbgVar.value to always be 0, and parsedebugvars to fail when trying to write to it. Work around this problem by moving dbgvars and its initialization inside parsedebugvars. This is ok because dbgvars is only used inside parsedebugvars anyway.

[aram, 2014-11-13 16:26:57]

Hello rsc (cc: brad, dfc, golang-codereviews@googlegroups.com, iant, khr, minux, r, rlh), I'd like you to review this change to the dev.cc branch of https://code.google.com/p/go

[rsc, 2014-11-13 17:31:25]

that's weird. that should be linker initialized. we should fix that instead of working around it. 

[aram, 2014-11-13 17:32:55]

Yes, we should definitely fix that, it probably affects other things as well.

[gobot, 2014-12-19 05:15:52]

R=close To the author of this CL: The Go project has moved to Gerrit Code Review. If this CL should be continued, please see the latest version of https://golang.org/doc/contribute.html for instructions on how to set up Git and the Go project's Gerrit codereview plugin, and then create a new change with your current code. If there has been discussion on this CL, please give a link to it (golang.org/cl/172510043 is best) in the description in your new CL. Thanks very much.