[GHC] #9920: Segfault in arm binary

#9920: Segfault in arm binary ----------------------------+------------------------------------------- Reporter: erikd | Owner: Type: bug | Status: new Priority: normal | Milestone: Component: Compiler | Version: 7.9 Keywords: | Operating System: Unknown/Multiple Architecture: arm | Type of failure: Runtime crash Difficulty: Unknown | Test Case: Blocked By: | Blocking: Related Tickets: | Differential Revisions: ----------------------------+------------------------------------------- Using ghc HEAD (6713f0d9a) I compile a very simple program which segfaults immediately. Stepping through it using GDB I find its crashing on the instruction {{{ 0x3f5a98 ldr r5, [r5] }}} and that just before this instruction the value of `r5` is zero. That means its trying to load into `r5` the value at the address in `r5`. Obviously that's going to segfault. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9920 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler