#7097: linker fails to load package with binding to foreign library
--------------------------+-------------------------------------------------
Reporter: nus | Owner:
Type: bug | Status: new
Priority: normal | Component: Runtime System
Version: 7.4.2 | Keywords:
Os: Windows | Architecture: x86
Failure: None/Unknown | Testcase:
Blockedby: | Blocking:
Related: |
--------------------------+-------------------------------------------------
GHCI is unable to load 'network' package on Windows. The versions:
{{{
$ ghci --version
The Glorious Glasgow Haskell Compilation System, version 7.4.2
}}}
{{{
$ ghc-pkg list network
c:/mnt/data1/ghc32b\lib\package.conf.d:
network-2.3.0.14
}}}
The test code:
{{{
import Network
main = withSocketsDo $ do listenOn (PortNumber 3333) -- >>= accept
}}}
The failure:
{{{
> ghci winsock-load-failure.hs
GHCi, version 7.4.2: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
[1 of 1] Compiling Main ( winsock-crash.hs, interpreted )
Ok, modules loaded: Main.
*Main> main
Loading package bytestring-0.9.2.1 ... linking ... done.
Loading package transformers-0.3.0.0 ... linking ... done.
Loading package mtl-2.1.2 ... linking ... done.
Loading package array-0.4.0.0 ... linking ... done.
Loading package deepseq-1.3.0.0 ... linking ... done.
Loading package text-0.11.2.2 ... linking ... done.
Loading package parsec-3.1.3 ... linking ... done.
Loading package network-2.3.0.14 ... linking ... <interactive>:
C:\mnt\data1\ghc32b\network-2.3.0.14\ghc-7.4.2\HSnetwork-2.3.0.14.o:
unknown symbol `__imp__WSACleanup'
ghc.exe: unable to load package `network-2.3.0.14'
}}}
The load trace log ('+RTS -Dl'):
{{{
[...snip...]
lookupSymbol: looking up __imp__WSACleanup@0
initLinker: start
initLinker: idempotent return
lookupSymbol: symbol not found
<interactive>:
C:\mnt\data1\ghc32b\network-2.3.0.14\ghc-7.4.2\HSnetwork-2.3.0.14.o:
unknown symbol `__imp__WSACleanup'
[...snip...]
}}}
The symbol to be resolved:
{{{
$ nm network-2.3.0.14/ghc-7.4.2/HSnetwork-2.3.0.14.o |grep WSACleanup
U __imp__WSACleanup@0
}}}
The actual symbol in the foreign library:
{{{
$ objdump -p /c/Windows/System32/ws2_32.dll
c:/Windows/System32/ws2_32.dll: file format pei-i386
[...snip...]
[Ordinal/Name Pointer] Table
[...snip...]
[ 115] WSACleanup
[...snip...]
}}}
The test snippet only works when compiled by ghc (so the resulting binary
is produced by ld.bfd).
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/7097>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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