gdb/
	Fix entry-values in C++ across CUs.
	* dwarf2loc.c (call_site_to_target_addr) <FIELD_LOC_KIND_PHYSNAME>: Use
	lookup_minimal_symbol.  Add a comment.
	* dwarf2read.c
	(read_call_site_scope) <is_ref_attr> <die_is_declaration>: Prefer
	DW_AT_linkage_name.

gdb/testsuite/
	Fix entry-values in C++ across CUs.
	* gdb.arch/amd64-tailcall-cxx.exp: New file.
	* gdb.arch/amd64-tailcall-cxx1.S: New file.
	* gdb.arch/amd64-tailcall-cxx1.cc: New file.
	* gdb.arch/amd64-tailcall-cxx2.S: New file.
	* gdb.arch/amd64-tailcall-cxx2.cc: New file.
gdb/
	Fix entry-values if the callee called a noreturn function.
	* dwarf2-frame-tailcall.c (dwarf2_tailcall_sniffer_first): Use
	get_frame_address_in_block.  Add new comment.

gdb/testsuite/
	Fix entry-values if the callee called a noreturn function.
	* gdb.arch/amd64-tailcall-noret.S: New file.
	* gdb.arch/amd64-tailcall-noret.c: New file.
	* gdb.arch/amd64-tailcall-noret.exp: New file.
gdb/
	* common/linux-ptrace.c (linux_ptrace_test_ret_to_nx): Call also kill
	for CHILD, ignore PTRACE_KILL errors, move the inner block variable
	kill_status to outer block.
daily update
	* gold.cc (queue_middle_tasks): Move detect_odr_violations..
	* layout.cc (Layout_task_runner::run): ..to here.
	* symtab.h (struct Symbol_location): Extract from..
	(class Symbol_table): ..here.
	* symtab.cc (Symbol_table::linenos_from_loc): Invoke function_location.
	* target.h (class Target): Add function_location and
	do_function_location functions.
	(class Sized_target): Add do_function_location.
	* object.h (class Sized_relobj_file): Move find_shdr..
	(class Object): ..to here.
	* object.cc: Likewise.  Update to suit.  Instantiate.
	(Sized_relobj_file::find_eh_frame): Update find_shdr call.
	* powerpc.cc (class Powerpc_dynobj): New.
	(Target_powerpc::do_function_location): New function.
	(Powerpc_relobj::do_find_special_sections): Update find_shdr call.
	(Powerpc_dynobj::do_read_symbols): New function.
	(Target_powerpc::do_make_elf_object): Make a Powerpc_dynobj.
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