Removing the function names and file information probably constitutes the most part of the size, I would guess.
Do you suggest stripping it as a post processing step or modifying the linker to not emit the strings in the first place? I'm not fond of adding a new flag to the linker, but it may not be such a bad idea in a mobile context to remove function names and file information. I would assume most of that happens in cmd/link/internal/ld/pcln.go right ? Thanks! On Friday, April 5, 2019 at 12:14:49 AM UTC+2, Ian Lance Taylor wrote: > > On Thu, Apr 4, 2019 at 2:32 PM Steeve Morin <steev...@gmail.com > <javascript:>> wrote: > > > > We are big Go users on Android and iOS thanks to golang/mobile. > > > > Lately we were doing some size profiling and stumbled upon > runtime.pclntab, > > which in our case represents almost 20% of the file size according to > bloaty. > > Now I understand that it's used for things like runtime.Caller and > panics. > > That said, in a mobile context panics are not that useful as this job is > handled by > > services like Crashlytics and DWARF. > > > > So we were wondering if it would be possible to strip it (or not emit it > altogether) > > and what would be the consequences/limitations of that? > > The consequences of removing pclntab would be fairly severe. You > wouldn't just lose runtime.Callers and stack traces and tracing and > profiling. The pclntab section is also used by the garbage collector > to traverse the stack, and by the stack copying code. I doubt that > many substantial Go programs would still work correctly. > > That said you could in principle drop part of pclntab with less severe > consequences, such as removing the function names. I don't know of > any supported way to do that, though. > > Ian > -- 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.
