[5.6] Gdb does not output the correct value of a structure.

Issue

• Gdb does not output the correct value of a structure in the following situation:

  • The target program links two libraries.
  • The two libraries have the same structure.
  • The structure is a global variable.

• When gdb debugs the one of library, it does not output the correct value of the structure.

• Please see the following log:

  # gdb ./test\_main
  ... (snip) ...  
  http://www.gnu.org/software/gdb/bugs/   
  Reading symbols from /root/iza/test/test\_main...done.
  (gdb) b A\_Main
  Function "A\_Main" not defined.
  Make breakpoint pending on future shared library load? (y or [n]) y
  Breakpoint 1 (A\_Main) pending.
  (gdb) run
  Starting program: /root/iza/test/test\_main  
  Breakpoint 1, A\_Main () at ./test2.c:23
  23                memset(&test, '\0', sizeof(TEST));
  (gdb) n
  25                test.num = 10;
  (gdb) n
  26                strcpy(test.c1, "aaaaa");
  (gdb) n
  27                strcpy(test.c2, "bbbbb");
  (gdb) n
  29                printf("ADDRESS of test: %p\n", &test);
  (gdb) n
  ADDRESS of test: 0xf7ffc718
  31                printf("test.c1 = %s\n", test.c1);
  (gdb) n
  test.c1 = aaaaa
  32                printf("test.c2 = %s\n", test.c2);
  (gdb) n
  test.c2 = bbbbb
  35                   }
  (gdb) p A::test
  $1 = {c1 = "\000\000\000\000\000", c2 = "\000\000\000\000\000", num = 0}
  

• The value of "test" structure is not output though some values are set to the structure.