#5043: Compiling bytestring-mmap with -fvia-C yields broken .s file, two .size
directives
-------------------------------+--------------------------------------------
Reporter: jeffwheeler | Owner:
Type: bug | Status: new
Priority: normal | Component: Compiler
Version: 7.0.2 | Keywords:
Testcase: | Blockedby:
Os: Linux | Blocking:
Architecture: x86_64 (amd64) | Failure: Compile-time crash
-------------------------------+--------------------------------------------
I tried to install the bytestring-mmap package, which specifies in its
cabal file the option -fvia-C (when this is removed, the package compiles
fine).
I'm using GHC 7.0.2 (installed Haskell Platform recently) on x86_64
(Ubuntu 11.04). On my system, I can reliably reproduce with simply
{{{
$ cabal install bytestring-mmap-0.2.1
}}}
To get the .s file I attached, you need to unpack the package, edit the
cabal file to include the GHC option `-keep-tmp-files`, and then `cabal
install` there. The error shows the location of the .s file:
{{{
bytestring-mmap-0.2.1$ cabal install
Resolving dependencies...
Configuring bytestring-mmap-0.2.1...
Preprocessing library bytestring-mmap-0.2.1...
Building bytestring-mmap-0.2.1...
[1 of 3] Compiling System.IO.Posix.MMap.Internal (
System/IO/Posix/MMap/Internal.hs,
dist/build/System/IO/Posix/MMap/Internal.o )
/tmp/ghc1834_0/ghc1834_0.s: Assembler messages:
/tmp/ghc1834_0/ghc1834_0.s:859:0:
Error: .size expression for
__stginit_bytestringzmmmapzm0zi2zi1_SystemziIOziPosixziMMapziInternal does
not evaluate to a constant
cabal: Error: some packages failed to install:
bytestring-mmap-0.2.1 failed during the building phase. The exception was:
ExitFailure 1
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5043>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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