#4867: ghci displays negative floats incorrectly (was: Incorrect result from
trig
functions)
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Reporter: gwright | Owner: gwright
Type: bug | Status: new
Priority: high | Milestone: 7.0.2
Component: GHCi | Version: 7.0.1
Keywords: | Testcase:
Blockedby: | Difficulty:
Os: MacOS X | Blocking:
Architecture: x86_64 (amd64) | Failure: Incorrect result at runtime
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Comment(by gwright):
The answer to the misalignment is even simpler than I thought. For
relocations that aren't external or through the global offset table, the
displacement is the code should be left unchanged. I've corrected my
change to `rts/Linker.c` to do this.
These null fixups are a bit odd, but I guess they are they take care of
some corner case.
I've run the entire testsuite with my new patch and get 70 unexpected
failures, 12 of which are `ghci` failures. I this is better than before,
but not dramatically so.
The reason that we're not seeing an impressive reduction in test failures
is that the bad relocations were quite uncommon: only 50 relocations were
non-external/non-GOT out of the approximately 210000 performed when `ghci`
starts with with no files specified on the command line.
Once the updated patch is applied, it's probably time to close this bug.
--
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/4867#comment:48>
GHC <http://www.haskell.org/ghc/>
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