#8166: Undefined references in HEAD object files
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Reporter: joelteon | Owner: jstolarek
Type: bug | Status: new
Priority: high | Milestone: 7.8.1
Component: Compiler | Version: 7.7
Resolution: | Keywords:
Operating System: Linux | Architecture: x86_64 (amd64)
Type of failure: None/Unknown | Difficulty: Unknown
Test Case: | Blocked By:
Blocking: | Related Tickets:
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Comment (by Austin Seipp <aseipp@…>):
In [changeset:776cfe28cf089c24a56a288f2f0c49494f7d9e47/ghc]:
{{{
#!CommitTicketReference repository="ghc"
revision="776cfe28cf089c24a56a288f2f0c49494f7d9e47"
Properly externalise codegen identifiers (#8166)
388e14e2 unfortunately broke a subtle invariant in the code generator:
when generating code for an application, names may need to be
externalised, in case you're building against something external with
was built with -split-objs.
We were never externalising the ids of the applied functions. This means
if the libraries are split and we call into them, then the compiler
won't may not generate correct ids when making references to functions
in the library (causing linker failure).
I'm not entirely sure how this didn't break everything, but it certainly
caused several failures for a bunch of people. I had to fiddle with my
tree a little to make this occur.
This should fix #8166.
Signed-off-by: Austin Seipp <[email protected]>
}}}
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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/8166#comment:7>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler
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