#3333: GHCi doesn't load weak symbols
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Reporter: heatsink | Owner:
Type: bug | Status: new
Priority: normal | Milestone: 6.14.1
Component: GHCi | Version: 6.10.4
Keywords: weak, dynamic loading | Difficulty: Unknown
Os: Linux | Testcase:
Architecture: x86 | Failure: None/Unknown
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Comment(by hgolden):
Replying to [ticket:3333 heatsink]:
> GHCi fails to load modules with weak symbols.
I want to clarify the current situation. GHCi's linker loads modules with
weak symbols. However, it doesn't put the weak symbols into the symbol
table.
It would be easy to add weak symbols to the symbol table, but I'm not sure
what the correct semantics should be. Perhaps weak symbols should be
subordinated to global (STB_GLOBAL) and local (STB_LOCAL) symbols. Is this
sufficient? (I haven't studied the documentation yet.)
Question: Is it possible to have the same weak symbol defined in more than
one module? If so, how does the linker choose?
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/3333#comment:6>
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