[GHC] #703: all binaries built by ghc have executable stacks

[GHC]

#703: all binaries built by ghc have executable stacks
----------------------------+----------------------------------------------
        Reporter:  duncan   |            Owner:  ezyang
            Type:  merge    |           Status:  merge
        Priority:  normal   |        Milestone:  6.6.1
       Component:           |          Version:  7.6.3
  Compiler (NCG)            |         Keywords:
      Resolution:           |     Architecture:  Unknown/Multiple
Operating System:  Linux    |       Difficulty:  Moderate (less than a day)
 Type of failure:           |       Blocked By:
  None/Unknown              |  Related Tickets:
       Test Case:  N/A      |
        Blocking:           |
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Comment (by ezyang):

 Hm, that's not right.  I'll need some of your assistance: please run `ghc
 --make example.hs -v -fforce-recomp -keep-tmp-files` (where example.hs is
 some trivial Haskell program) and look at the output. You should see
 something like:

 {{{
 *** C Compiler:
 '/usr/bin/gcc' '-fno-stack-protector' '-Wl,--hash-size=31' '-Wl,--reduce-
 memory-overheads' '-c' '/tmp/ghc1284_0/ghc1284_0.c' '-o'
 '/tmp/ghc1284_0/ghc1284_0.o' '-DTABLES_NEXT_TO_CODE'
 '-I/usr/lib/ghc/include'
 *** C Compiler:
 '/usr/bin/gcc' '-fno-stack-protector' '-Wl,--hash-size=31' '-Wl,--reduce-
 memory-overheads' '-c' '/tmp/ghc1284_0/ghc1284_1.s' '-o'
 '/tmp/ghc1284_0/ghc1284_1.o' '-DTABLES_NEXT_TO_CODE'
 '-I/usr/lib/ghc/include'
 }}}

 if you scroll up a little bit. Run `readelf -S` on both of the object
 files and check if `.note.GNU-stack` is present. The bug I saw in HEAD was
 `/tmp/ghc1284_0/ghc1284_1.s` did not have the appropriate `.note.GNU-
 stack` applied. If you see something different maybe something else has
 changed between 7.6 and HEAD.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/703#comment:21>
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