GNU bug report logs -
#8846
coreutils-8.12 on HP-UX 11.31: 3 of 365 tests failed
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Reported by: Bruno Haible <bruno <at> clisp.org>
Date: Mon, 13 Jun 2011 09:17:01 UTC
Severity: normal
Tags: moreinfo
Done: Jim Meyering <jim <at> meyering.net>
Bug is archived. No further changes may be made.
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Message #65 received at 8846 <at> debbugs.gnu.org (full text, mbox):
Eric Blake wrote:
> On 06/13/2011 07:36 AM, Jim Meyering wrote:
>> However, it looks like using "eval" didn't help at all.
>> What does this do on that system?
>>
>> sh -c 'e=2; warn_ () { echo "$@" 1>&$e; }; warn_ x'
>
> $ sh -c 'e=2; warn_ () { echo "$@" 1>&$e; }; warn_ x'
> x
>
>>
>> This is what happens via tests/check.mk:
>>
>> printf '#!/bin/sh\ne=9; warn_ () { echo "$@" 1>&$e; }; warn_ x\n' > k
>> sh -c 'exec 9>&2; /bin/sh k'
>>
>> Does that evoke a warning for you?
>
> Yes:
>
> % sh -c 'exec 9>&2; /bin/sh k'
> k: 9: Generated or received a file descriptor number that is not valid.
>
> But I think the reason that it invokes a problem is not because of the
> 1>&$e construct, but because HP-UX opens secondary file descriptors as
> cloexec or otherwise closing them at some point, so the '/bin/sh k'
> child process is not inheriting fd 9 from the parent process.
Ah ha!
That sounds like a syscall that needs to be gnulib-replaced in bash/zsh.
Of course, first we'd need to gnulib-enable a shell.
> Does anyone know the HP-UX counterpart to Linux' strace in order to see
> what syscalls are in use by the HP-UX shell, and why/where fd 9 is
> getting closed?
http://bhami.com/rosetta.html suggests the following:
caliper fprof
caliper ktrace
trace (freeware)
tusc (11+, freeware)
>> If so, does hard-coding the "9" help?
>
> No.
Thanks for investigating.
This bug report was last modified 13 years and 347 days ago.
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