[Bug target/43745] [avr] g++ puts VTABLES in SRAM
tfrancuz at mp dot pl
gcc-bugzilla@gcc.gnu.org
Thu Nov 24 22:14:00 GMT 2011
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43745
--- Comment #5 from Tomasz Francuz <tfrancuz at mp dot pl> 2011-11-24 21:56:17 UTC ---
Ok, here is the code:
class test
{
public:
test() {};
virtual void vfunction();
};
void test::vfunction()
{
}
int main()
{
}
After compilation 6 bytes of SRAM is occupied by test object vtable. Here is a
resulting part of map file:
*(.data)
.data 0x00800100 0x0
c:/winavr-20100110/bin/../lib/gcc/avr/4.3.3/../../../../avr/lib/avr51/crtm128.o
.data 0x00800100 0x6 gpp.o
0x00800100 vtable for test
.data 0x00800106 0x0
c:/winavr-20100110/bin/../lib/gcc/avr/4.3.3/avr51\libgcc.a(_exit.o)
*(.data*)
More information about the Gcc-bugs
mailing list