#7056: Relax static-PE linker object checks
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Reporter: songpp | Owner: thoughtpolice
Type: bug | Status: new
Priority: normal | Milestone: 7.12.1
Component: GHCi | Version: 7.4.1
Resolution: | Keywords: loadArchive Unknown
Operating System: Windows | PEi386
Type of failure: None/Unknown | Architecture: x86
Blocked By: | Test Case:
Related Tickets: #2487, #7103, | Blocking:
#7889 |
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Comment (by Austin Seipp ):
In [changeset:"a293925d810229fbea77d95f2b3068e78f8380cc/ghc"]:
{{{
#!CommitTicketReference repository="ghc"
revision="a293925d810229fbea77d95f2b3068e78f8380cc"
rts/linker: ignore unknown PE sections
Summary: Currently the linker tries to see if it understands/knows every
section in the PE file before it continues. If it encounters a section it
doesn't know about it errors out. Every time there's a change in MinGW
compiler that adds a new section to the PE file this will break the ghc
linker. The new sections don't need to be understood by `ghc` to continue
so instead of erroring out the section is just ignored. When running with
`-debug` the sections that are ignored will be printed.
Test Plan:
See the file `ghcilinkerbug.zip` in #9907.
1) unzip file content.
2) open examplecpp.cabal and change base <4.8 to <4.9.
3) execute cabal file with cabal repl.
Applying the patch makes `cabal repl` in step 3) work.
Note that the file will fail on a `___mingw_vprintf` not being found. This
is because of the `cc-options` specifying `-std=c++0x`, which will also
require `libmingwex.a` to be linked in but wasn't specified in the cabal
file. To fix this, remove the `cc-options` which defaults to c99.
Reviewers: austin
Reviewed By: austin
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D671
GHC Trac Issues: #9907, #7103, #10051, #7056, #8546
}}}
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Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/7056#comment:26
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