#7539: Hard ghc api crash when calling runStmt on code which has not been
compiled
-----------------------------+----------------------------------------------
Reporter: edsko | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.6.1 | Keywords:
Os: Unknown/Multiple | Architecture: Unknown/Multiple
Failure: None/Unknown | Blockedby:
Blocking: | Related:
-----------------------------+----------------------------------------------
(See attached example program demonstrating the crash.) When the session
flags are set to
{{{
let flags = flags0 { hscTarget = HscNothing, ghcLink = NoLink } --
Crashes
}}}
and we later try to run the code (`runStmt`), the GHC API crashes. If
instead we set the flags to
{{{
let flags = flags0 { hscTarget = HscNothing, ghcLink = LinkBinary } --
Okay
}}}
we get a nice error message instead:
{{{
Undefined symbols for architecture i386:
"_ZCMain_main_closure", referenced from:
_main in ghc72975_0.o
ld: symbol(s) not found for architecture i386
collect2: ld returned 1 exit status
TestGhc: TestGhc: phase `Linker' failed (exitcode = 1)
}}}
The exact crash varies from run to run. Most often it is
{{{
Bus error: 10
}}}
Sometimes it is
{{{
Segmentation fault: 11
}}}
and in all my testing I've only once seen
{{{
TestGhc: internal error: stg_ap_v_ret
(GHC version 7.4.2 for i386_apple_darwin)
Please report this as a GHC bug:
http://www.haskell.org/ghc/reportabug
Abort trap: 6
}}}
(This is on a Mac, confirmed with both ghc 7.4 and ghc 7.6).
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7539>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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