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Opened by Peter Trommler@trommler🥁Developer0 of 5 tasks completed0/5 tasks
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Implement DWARF debugging on powerpc64

debug:

ghc-stage2: panic! (the 'impossible' happened)
  (GHC version 7.11.20151219 for powerpc64-unknown-linux):
        dwarfReturnRegNo: Unsupported platform!
CallStack (from ImplicitParams):
  error, called at compiler/nativeGen/Dwarf/Constants.hs:224:19 in ghc:Dwarf.Constants

Please report this as a GHC bug:  http://www.haskell.org/ghc/reportabug

Provide DWARF constants for registers.

Still TODO:

  • add unwinding information to StgCRun to ensure that the unwinder can unwind from Haskell into C
  • to support the RTS unwinder: add support to the initial register callback set_initial_registers in rts/Libdw.c
  • Valid unwind records in stg_stop_thread (defined in rts/StgStartup.cmm)
  • Support in the native code generator (by implementing the extractUnwindPoints field of NcgImpl)
  • Unwinding support in libdw
Trac metadata
Trac field Value
Version 7.11
Type Bug
TypeOfFailure OtherFailure
Priority normal
Resolution Unresolved
Component Compiler (CodeGen)
Test case debug, T10667
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Edited by Peter Trommler