This is the mail archive of the
gcc-help@gcc.gnu.org
mailing list for the GCC project.
Re: Audit Use of Global Variables in C++ Shared Object (GCC Warning?)
Feature request for the warning:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46097
On Tue, Oct 19, 2010 at 7:45 PM, Ian Lance Taylor <iant@google.com> wrote:
> Jeffrey Walton <noloader@gmail.com> writes:
>
>> I'm interested in finding references to global variables in a compilation unit.
>>
>> I've found "nm [-D] ..." is helpful for archives and shared objects,
>> but its only useful if combined with grep and variable naming
>> conventions. For example, if naming conventions are punned, then "nm
>> -D mycoollib | grep g_" is useless.
>
> nm -D dumps dynamic symbols. ?I would recommend instead something like
> ?objdump -t -j .data | grep ' g ? '
> That should give you all the global symbols defined in the .data
> section. ?You may want to add a few more sections.
>
>> Does gcc have such a warning?
>
> I don't think so.
>
> Ian
>