extern "C" {
extern int printf (__const char *__restrict __format, ...);
}
class cException { };
class TCmdenvApp {
public:
virtual int run();
};
int TCmdenvApp::run()
{
try {
printf("\nPreparing for Run #%d...\n", 1);
}
catch (cException *e) {
}
}
int main()
{
TCmdenvApp app;
app.run();
}
> ./g++ -B. -B ../x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs cmdenv.3.ii
> -flto -fwhole-program -fPIC
/tmp/ccc2e3Uh.lto.o:(.gcc_except_table+0x10): undefined reference to `.LDFCM0'
collect2: ld returned 1 exit status
works without either of -flto, -fwhole-program or -fPIC.
It looks like .LDFCM0 is privatized on read-in to .LDFCM0.1932 in
lto_set_decl_assembler_name but dwarf2out does not compensate for that?
--
Summary: Undefined reference with -fPIC -fwhole-program -flto
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Keywords: lto
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rguenth at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41729
