[Bug target/65780] [5 Regression] Uninitialized common handling in executables

["hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65780

--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
Please provide the output of "readelf -sW a.o" to verify
if optopt is COMMON:

[hjl@gnu-6 gcc]$ ./xgcc -B./ -O2 -c /tmp/a.c 
[hjl@gnu-6 gcc]$ readelf -sW a.o 

Symbol table '.symtab' contains 12 entries:
   Num:    Value          Size Type    Bind   Vis      Ndx Name
     0: 0000000000000000     0 NOTYPE  LOCAL  DEFAULT  UND 
     1: 0000000000000000     0 FILE    LOCAL  DEFAULT  ABS a.c
     2: 0000000000000000     0 SECTION LOCAL  DEFAULT    1 
     3: 0000000000000000     0 SECTION LOCAL  DEFAULT    2 
     4: 0000000000000000     0 SECTION LOCAL  DEFAULT    3 
     5: 0000000000000000     0 SECTION LOCAL  DEFAULT    4 
     6: 0000000000000000     0 SECTION LOCAL  DEFAULT    5 
     7: 0000000000000000     0 SECTION LOCAL  DEFAULT    8 
     8: 0000000000000000     0 SECTION LOCAL  DEFAULT    9 
     9: 0000000000000000     0 SECTION LOCAL  DEFAULT    7 
    10: 0000000000000000    13 FUNC    GLOBAL DEFAULT    5 main
    11: 0000000000000004     4 OBJECT  GLOBAL DEFAULT  COM optopt
[hjl@gnu-6 gcc]$