[Bug gdb/18733] New: GDB sees alternative instance of static template member variable in shared objects

[Bug gdb/18733] New: GDB sees alternative instance of static template member variable in shared objects

[christopher.hite at sc dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=18733

            Bug ID: 18733
           Summary: GDB sees alternative instance of static template
                    member variable in shared objects
           Product: gdb
           Version: 7.9
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdb
          Assignee: unassigned at sourceware dot org
          Reporter: christopher.hite at sc dot com
  Target Milestone: ---

Created attachment 8456
  --> https://sourceware.org/bugzilla/attachment.cgi?id=8456&action=edit
main (would like to submit all files in one post)

gdb-7.9.1 and 7.7.1

When a templated class's static member variable is defined in referenced in
multiple compilation scopes it must be reference the same object.

The code works fine.  GDB sees some other instance of the object which isn't
updating.

13              X<0>::m=2;
(gdb) n
14              printState();
(gdb) print X<0>::m
$4 = 1                       <============ Should be 2
(gdb) n
2 2


This works as expected when the program is built like this:
g++ -g *.cpp 

but not when built like this:
g++ -c -g -fpic lib.cpp
g++ -shared -o liblib.so lib.o
g++ main.cpp -g  -L. -llib

I will attach the tiny sources.  This is a very reproducible bug.

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[Bug gdb/18733] GDB sees alternative instance of static template member variable in shared objects

[christopher.hite at sc dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=18733

--- Comment #1 from Christopher Hite <christopher.hite at sc dot com> ---
Created attachment 8457
  --> https://sourceware.org/bugzilla/attachment.cgi?id=8457&action=edit
header

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[Bug gdb/18733] GDB sees alternative instance of static template member variable in shared objects

[christopher.hite at sc dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=18733

--- Comment #2 from Christopher Hite <christopher.hite at sc dot com> ---
Created attachment 8458
  --> https://sourceware.org/bugzilla/attachment.cgi?id=8458&action=edit
lib which defines X<0>::m

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[Bug gdb/18733] GDB sees alternative instance of static template member variable in shared objects

[christopher.hite at sc dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=18733

Christopher Hite <christopher.hite at sc dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |christopher.hite at sc dot com

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