gdb/

gdb/
	Support PIEs with no symfile_objfile.
	* exec.c (print_section_info <abfd == exec_bfd>): Relocate Entry point.
	* solib-svr4.c (svr4_relocate_main_executable <exec_bfd>): New block.

gdb/testsuite/
	Support PIEs with no symfile_objfile.
	* gdb.base/break-interp.exp: New argument at the test_ld calls.
	(test_ld): New parameter trynosym.
	(test_ld <$trynosym>): New block.