gdb/

gdb/
	* solib-svr4.c (svr4_relocate_main_executable): Move the static exec
	code part to ...
	(svr4_static_exec_displacement): ... a new function.
	(svr4_exec_displacement): New function.
	(svr4_relocate_main_executable): Call svr4_exec_displacement.  Allocate
	new_offsets using alloca now.  Remove variable old_chain and changed.
	Call objfile_relocate unconditionally now.

gdb/testsuite/
	* gdb.base/break-interp.exp: New file.