http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46770
--- Comment #37 from H.J. Lu <hjl.tools at gmail dot com> 2010-12-12 00:00:53
UTC ---
(In reply to comment #36)
> > That is the constructor order between A and B. We don't support
> > "interleaving constructor priorities" between object files.
>
> Yes, we do. We have for a very long time. This is why the linker sorts
> the .ctors sections.
Really? Here is a testcase. Do you think goo's constructor
will be called before another constructor in another file
with priority 1005?
[...@gnu-6 pr46770-2]$ cat foo.C
class Two {
private:
int i, j, k;
public:
static int count;
Two( int ii, int jj ) { i = ii; j = jj; k = count++; };
Two( void ) { i = 0; j = 0; k = count++; };
int eye( void ) { return i; };
int jay( void ) { return j; };
int kay( void ) { return k; };
};
extern Two foo;
extern Two goo;
Two foo __attribute__((init_priority(65530))) ( 5, 6 );
Two goo __attribute__((init_priority(65535))) = Two( 7, 8 );
[...@gnu-6 pr46770-2]$ gcc -c foo.C -m32
[...@gnu-6 pr46770-2]$ readelf -S foo.o | grep ctor
[ 8] .ctors.00005 PROGBITS 00000000 0000f8 000004 00 WA 0 0
4
[ 9] .rel.ctors.00005 REL 00000000 000770 000008 08 17 8
4
[10] .ctors PROGBITS 00000000 0000fc 000004 00 WA 0 0
4
[11] .rel.ctors REL 00000000 000778 000008 08 17 10
4
[...@gnu-6 pr46770-2]$
