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From: "john at calva dot com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug gdb/8588] symbols present in multiple files are displayed
 wrongly
Date: Sat, 02 Feb 2013 11:27:00 -0000
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http://sourceware.org/bugzilla/show_bug.cgi?id=8588

--- Comment #6 from John Hughes <john at calva dot com> 2013-02-02 11:27:47 UTC ---
On 02/01/2013 10:56 PM, naesten at gmail dot com wrote:
> This leaves me wondering: Is this really architecture-dependent, or is it just
> due to chance (different addresses, hash collisions, etc.) that it works for me
> and not for you?

I guess you're on x86?  My machines are amd64

>
> My questions for you are:
>
> 1. What version of libc6-dev do you have installed?

ii  gcc            4:4.7.2-1    amd64        GNU C compiler
ii  gdb            7.4.1-3      amd64        The GNU Debugger
ii  libc6-dev:amd6 2.13-38      amd64        Embedded GNU C Library: Developme

>
> 2. What do you get for "info variables optind"?
>
Not at all the same as you:

    (gdb) info variables optind
    All variables matching regular expression "optind":

    Non-debugging symbols:
    0x0000000000600930  optind@@GLIBC_2.2.5

Interesting - "non-debugging symbols"?   Maybe I should install libc6-dbg?

Well, with libc6-dbg I get different output from info variables:

    All variables matching regular expression "optind":

    File getopt.c:
    int optind;

    Non-debugging symbols:
    0x0000000000600930  optind@@GLIBC_2.2.5

But "p" still doesn't show the version I want:

    (gdb) p &optind
    $1 = (int *) 0x7ffff7dd7130

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