#4973: building ghc7.0.1.20110217 under x86 solaris fails
----------------------------------+-----------------------------------------
Reporter: maeder | Owner: igloo
Type: bug | Status: patch
Priority: highest | Milestone: 7.2.1
Component: Compiler | Version: 7.0.2
Resolution: | Keywords:
Testcase: | Blockedby:
Difficulty: | Os: Solaris
Blocking: | Architecture: x86
Failure: Building GHC failed |
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Comment(by simonmar):
Replying to [comment:45 kgardas]:
> Text relocation remains referenced
> against symbol offset in file
> threadPaused 0x4f5
rts/dist/build/Schedule.dyn_o
> threadPaused 0x1eb
rts/dist/build/Interpreter.dyn_o
> threadPaused 0x27a
rts/dist/build/Interpreter.dyn_o
> threadPaused 0x4ab
rts/dist/build/Interpreter.dyn_o
> threadPaused 0x532
rts/dist/build/Interpreter.dyn_o
> threadPaused 0x5f0
rts/dist/build/Interpreter.dyn_o
> threadPaused 0x691
rts/dist/build/Interpreter.dyn_o
> threadPaused 0x1123
rts/dist/build/Interpreter.dyn_o
> threadPaused 0x1198
rts/dist/build/Interpreter.dyn_o
> initTimer 0x43b
rts/dist/build/Schedule.dyn_o
> initTimer 0x155
rts/dist/build/RtsStartup.dyn_o
> awaitEvent 0xa01
rts/dist/build/Schedule.dyn_o
> StgRun 0xb2e
rts/dist/build/Schedule.dyn_o
> StgRun 0x210
rts/dist/build/RtsStartup.dyn_o
> interpretBCO 0xf5f
rts/dist/build/Schedule.dyn_o
> exitTimer 0x311
rts/dist/build/RtsStartup.dyn_o
> initGlobalStore 0x146
rts/dist/build/RtsStartup.dyn_o
> exitGlobalStore 0x334
rts/dist/build/RtsStartup.dyn_o
> initFileLocking 0x14b
rts/dist/build/RtsStartup.dyn_o
> resetTerminalSettings 0x316
rts/dist/build/RtsStartup.dyn_o
> freeFileLocking 0x33e
rts/dist/build/RtsStartup.dyn_o
> newArena 0x195
rts/dist/build/ProfHeap.dyn_o
> newArena 0x77e
rts/dist/build/ProfHeap.dyn_o
> arenaAlloc 0x5e6
rts/dist/build/ProfHeap.dyn_o
> arenaFree 0x3ef
rts/dist/build/ProfHeap.dyn_o
> sweep 0x175b
rts/dist/build/sm/GC.dyn_o
> getourtimeofday 0x191
rts/dist/build/posix/Select.dyn_o
> getourtimeofday 0x370
rts/dist/build/posix/Select.dyn_o
> getourtimeofday 0x1c9
rts/dist/build/posix/Itimer.dyn_o
Interesting - these are all the symbols declared with `RTS_PRIVATE` in
their header files. RTS_PRIVATE is defined like this:
{{{
// Symbols that are extern, but private to the RTS, are declared
// with visibility "hidden" to hide them outside the RTS shared
// library.
#if defined(HAS_VISIBILITY_HIDDEN)
#define RTS_PRIVATE GNUC3_ATTRIBUTE(visibility("hidden"))
#else
#define RTS_PRIVATE /* disabled: RTS_PRIVATE */
#endif
}}}
So the errors at least partly make sense: a hidden symbol is supposed to
be resolved when the library is linked, so the relocation would be in the
text section. Maybe the linker is not correctly resolving the symbol at
link time, and leaving a dynamic relocation.
There seems to be a similar bug on FreeBSD, looking at
`rts/BeginPrivate.h`:
{{{
/* We don't use symbol visibility pragmas on FreeBSD, because it causes
"undefined reference" errors at link-time. The true reasons are
unknown, however FreeBSD 8.x includes GCC 4.2.1 in the base system,
which might be buggy. */
/* On Windows, with gcc 4.5.0-1, using visibility hidden gives:
error: visibility attribute not supported in this configuration;
ignored
*/
#if defined(HAS_VISIBILITY_HIDDEN) && !defined(freebsd_HOST_OS)
#pragma GCC visibility push(hidden)
#endif
}}}
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4973#comment:46>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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