[Bug c++/37667] New: Initialization of global variables and functions with constructor attribute.

[uleysky at gmail dot com]

The test code

#include <stdlib.h>
class Test
{
 public:
 int t;
 Test():t(1) {}
};

Test ex_t;

void Init() __attribute__ ((constructor));
void Init() { if(ex_t.t==0) abort(); }

int main(void) { return 0; }

aborted if compiled with gcc 4.3.2. If compiled with gcc 4.1.0 or 3.3.6 it
proceed normally. As I understand, in first case the ex_t constructor called
after function Init, but in second case the ex_t constructor called before
function Init. I not found in documentation what case is right, so I think this
is a bug. In my opinion, constructors of global variables must have more
priority than __attribute__ ((constructor)) functions.

Compilation command is simple: g++ -o test test.cpp


-- 
           Summary: Initialization of global variables and functions with
                    constructor attribute.
           Product: gcc
           Version: 4.3.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: uleysky at gmail dot com
 GCC build triplet: x86_64-unknown-linux
  GCC host triplet: x86_64-unknown-linux
GCC target triplet: x86_64-unknown-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37667