binutils-gdb/ld/testsuite/ld-elf/pr19579a.c
H.J. Lu 07492f668d Treat common symbol in executable as definition
Common symbol in executable is a definition, which overrides definition
from shared objects.  When linker sees a new definition from a shared
object, the new dynamic definition should be overridden by the previous
common symbol in executable.

bfd/

	PR ld/19579
	* elflink.c (_bfd_elf_merge_symbol): Treat common symbol in
	executable as definition if the new definition comes from a
	shared library.

ld/

	PR ld/19579
	* testsuite/ld-elf/pr19579a.c: New file.
	* testsuite/ld-elf/pr19579b.c: Likewise.
	* testsuite/ld-elf/shared.exp: Run PR ld/19579 test.
2016-03-04 06:37:54 -08:00

16 lines
221 B
C

#include <stdio.h>
int foo[1];
int bar[2];
extern int *foo_p (void);
extern int *bar_p (void);
int
main ()
{
if (foo[0] == 0 && foo == foo_p () && bar[0] == 0 && bar == bar_p ())
printf ("PASS\n");
return 0;
}