Continuations are not labelled in the binaries even with -g3

Any program would work as a reproducer, but here's what I'm using currently:

{-# LANGUAGE StaticPointers #-}

module Main where

import Control.Concurrent
import System.Mem

nats :: [Int]
nats = [0 .. ]

main = do
  let z = nats !! 400
  print z
  performGC
  threadDelay 1000000
  print (nats !! 900)

If I do printStack every time the GC copies a stack I sometimes see stack frames like

RET_SMALL (0x535568)

but in gdb or objdump output I can't find a symbol at that address, even when the program is built with -g3. When I print the location as StgInfoTable* I can see that it's a valid info table so 0x535578 should be labelled as foo_info.

In the objdump output I see that the location is shown as this:

  535563:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
	...
  535570:	1e                   	(bad)  
  535571:	00 00                	add    %al,(%rax)
  535573:	00 00                	add    %al,(%rax)
  535575:	00 00                	add    %al,(%rax)
  535577:	00 bb e9 e2 85 00    	add    %bh,0x85e2e9(%rbx)
  53557d:	48 83 c5 08          	add    $0x8,%rbp

Trac metadata

Trac field	Value
Version
Type	Bug
TypeOfFailure	OtherFailure
Priority	normal
Resolution	Unresolved
Component	Compiler
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