You can get the CFG (control flow graph) for a function by setting the environment variable GOSSAFUNC to the function in question when building. It will generate a file named ssa.html in the current directory which you can load into a browser. It doesn't draw the CFG explicitly but the nodes (basic blocks) and edges are all listed.
GOSSAFUNC=foo go build <some target> will generate an ssa.html file for the foo function (as well as spew lots of info about foo to stdout). On Saturday, November 26, 2016 at 4:05:03 AM UTC-8, Michael Jones wrote: > > I had the same reaction. More of a riddle than a question. > > If CFG means Context Free Grammar, then how could it be something of a > program rather than of the language? > > if CFG means Configuration File, then the programming language would have > nothing to do with the quest for the file, which would be a separate entity. > > If CFG means Control Flow Graph, then "access" is problematic as the flow > graph is more an attribute to be derived rather than a manifest element to > be accessed. > > Other CFGs, including Certificat de Formation Générale, the airport code > for Cienfuegos Cuba, Cubic Feet Gas, Cross Florida Greenway, and the > airline Condor Flugdienst GmbH, amongst others, seem far removed from Go > programs. > > So, the best guest is Control Flow Graph. The best answer is to start with > the graphical output of execution profiling as explained in the Go Blog (in > 2011): > > https://blog.golang.org/profiling-go-programs > > On Sat, Nov 26, 2016 at 6:45 AM, Tamás Gulácsi <tgula...@gmail.com > <javascript:>> wrote: > >> What the hell is a CFG? >> >> -- >> You received this message because you are subscribed to the Google Groups >> "golang-nuts" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to golang-nuts...@googlegroups.com <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > Michael T. Jones > michae...@gmail.com <javascript:> > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
