Re: [GHC] #10046: Linker script patch in rts/Linker.c doesn't work for (non-C or non-en..) locales

30 Dec 2015

      ...
hgolden, I actually am having difficulty running your script and
 reproducing the same output. There are two problems. First, the path that
 is in your example doesn't exist on my system. There are a few possible
 candidates: `/usr/lib/x86_64-linux-gnu/libc.so` is a linker script that
 has contents
{{{
/* GNU ld script
   Use the shared library, but some functions are only in
   the static library, so try that secondarily.  */
OUTPUT_FORMAT(elf64-x86-64)
GROUP ( /lib/x86_64-linux-gnu/libc.so.6 /usr/lib/x86_64-linux-
 gnu/libc_nonshared.a  AS_NEEDED ( /lib/x86_64-linux-gnu/ld-
#10046: Linker script patch in rts/Linker.c doesn't work for (non-C or non-en..)
locales
-------------------------------------+-------------------------------------
        Reporter:  hgolden           |                Owner:  simonmar
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:  8.0.1
       Component:  Runtime System    |              Version:  7.8.4
  (Linker)                           |
      Resolution:                    |             Keywords:  linker script
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  Incorrect result  |  Unknown/Multiple
  at runtime                         |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:  2615, 9237        |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by hgolden):

 Replying to [comment:4 ezyang]:
 linux-x86-64.so.2 ) )
...
}}}
 My apology for not replying promptly! The library above should have the
 same results on your system. Please replace the library name in the
 `loadDLL` function with the name of any linker script on your test system.
Then, when I run the script compiled by GHC 7.6.3, I get `Nothing`. So I
 can't seem to coax out the Chinese output.
 If you are getting `Nothing` that suggests a problem with the regular
 expression. It should find the `/lib/x86_64-linux-gnu/libc.so.6` in the
 GROUP command and try to `dlopen` it. I will investigate.
...
BTW, in GHC 7.10 you need to initialize the object linker, otherwise it
 will segfault.
 In the past the RTS initialized the object linker when it started up.
 Maybe this is related to a change in that logic?
--
Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/10046#comment:7
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