Two modifications:
1. The addition of 2013 to the copyright year range for every file;
2. The use of a single year range, instead of potentially multiple
year ranges, as approved by the FSF.
* gdb.dwarf2/dw2-var-zero-addr.exp: Use standard_testfile.
* gdb.dwarf2/dw2-param-error.exp: Use standard_testfile.
* gdb.dwarf2/dw2-op-call.exp: Use standard_testfile.
* gdb.dwarf2/dw2-inline-param.exp: Use standard_testfile,
prepare_for_testing.
* gdb.dwarf2/dw2-inline-break.exp: Use standard_testfile.
* gdb.dwarf2/dw2-ifort-parameter.exp: Use standard_testfile.
* gdb.dwarf2/dw2-cp-infcall-ref-static.exp: Use
standard_testfile.
* gdb.dwarf2/dw2-case-insensitive.exp: Use standard_testfile.
* gdb.dwarf2/dw4-sig-types.exp: Use standard_testfile.
* gdb.dwarf2/dw2-objfile-overlap.exp: Use standard_testfile.
* gdb.dwarf2/callframecfa.exp: Use standard_testfile,
prepare_for_testing.
* gdb.dwarf2/dup-psym.exp: Use standard_testfile.
* gdb.dwarf2/dw2-ada-ffffffff.exp: Use standard_testfile.
* gdb.dwarf2/dw2-anonymous-func.exp: Use standard_testfile.
* gdb.dwarf2/dw2-bad-parameter-type.exp: Use standard_testfile.
* gdb.dwarf2/dw2-basic.exp: Use standard_testfile.
* gdb.dwarf2/dw2-compressed.exp: Use standard_testfile.
* gdb.dwarf2/dw2-const.exp: Use standard_testfile.
* gdb.dwarf2/dw2-cu-size.exp: Use standard_testfile.
* gdb.dwarf2/dw2-double-set-die-type.exp: Use standard_testfile.
* gdb.dwarf2/dw2-empty-namespace.exp: Use standard_testfile.
* gdb.dwarf2/dw2-empty-pc-range.exp: Use standard_testfile.
* gdb.dwarf2/dw2-filename.exp: Use standard_testfile.
* gdb.dwarf2/dw2-icc-opaque.exp: Use standard_testfile.
* gdb.dwarf2/dw2-inheritance.exp: Use standard_testfile.
* gdb.dwarf2/dw2-intercu.exp: Use standard_testfile.
* gdb.dwarf2/dw2-intermix.exp: Use standard_testfile.
* gdb.dwarf2/dw2-linkage-name-trust.exp: Use standard_testfile.
* gdb.dwarf2/dw2-modula2-self-type.exp: Use standard_testfile.
* gdb.dwarf2/dw2-namespaceless-anonymous.exp: Use standard_testfile.
* gdb.dwarf2/dw2-op-stack-value.exp: Use standard_testfile.
* gdb.dwarf2/dw2-producer.exp: Use standard_testfile.
* gdb.dwarf2/dw2-ranges.exp: Use standard_testfile,
standard_output_file.
* gdb.dwarf2/dw2-ref-missing-frame.exp: Use standard_testfile,
standard_output_file.
* gdb.dwarf2/dw2-restore.exp: Use standard_testfile.
* gdb.dwarf2/dw2-simple-locdesc.exp: Use standard_testfile.
* gdb.dwarf2/dw2-skip-prologue.exp: Use standard_testfile.
* gdb.dwarf2/dw2-stack-boundary.exp: Use standard_testfile.
* gdb.dwarf2/dw2-strp.exp: Use standard_testfile.
* gdb.dwarf2/dw4-sig-type-unused.exp: Use standard_testfile.
* gdb.dwarf2/implptr-64bit.exp: Use standard_testfile.
* gdb.dwarf2/implptr-optimized-out.exp: Use standard_testfile.
* gdb.dwarf2/implptr.exp: Use standard_testfile.
* gdb.dwarf2/mac-fileno.exp: Use standard_testfile.
* gdb.dwarf2/member-ptr-forwardref.exp: Use standard_testfile.
* gdb.dwarf2/pieces.exp: Use standard_testfile.
* gdb.dwarf2/pr11465.exp: Use standard_testfile.
* gdb.dwarf2/pr13961.exp: Use standard_testfile.
* gdb.dwarf2/valop.exp: Use standard_testfile,
prepare_for_testing.
Fix empty DWARF expressions DATA vs. SIZE conditionals.
* dwarf2loc.c (dwarf2_find_location_expression): Clear *LOCEXPR_LENGTH.
(dwarf_expr_frame_base_1): Indicate unavailability via zero *LENGTH.
(locexpr_tracepoint_var_ref): Check only zero SIZE, not zero DATA.
(loclist_read_variable, loclist_tracepoint_var_ref): Do not check for
zero DATA.
* dwarf2loc.h (struct dwarf2_locexpr_baton): Comment DATA vs. SIZE
validity.
* dwarf2read.c (struct dwarf_block): Comment DATA validity.
(dwarf2_fetch_die_location_block, dwarf2_symbol_mark_computed): Do not
clear DATA on zero SIZE.
gdb/testsuite/
Fix empty DWARF expressions DATA vs. SIZE conditionals.
* gdb.dwarf2/dw2-op-call.S (arraycallnoloc, arraynoloc): New DIEs.
(loclist): New.
(4): New abbrev.
* gdb.dwarf2/dw2-op-call.exp: Remove variable srcfile and executable.
Use prepare_for_testing, remove clean_restart.
(p arraynoloc, p arraycallnoloc): New tests.
Fix crash if referenced CU is aged out.
* dwarf2loc.c (per_cu_dwarf_call): New variable back_to, use to for
xfree of block.data.
(indirect_pieced_value): New variable back_to, use to for xfree of
baton.data.
(dwarf2_compile_expr_to_ax): New variable back_to, use to for xfree of
block.data.
* dwarf2read.c (dwarf2_find_base_address): New prototype.
(load_cu): New function from ...
(dw2_do_instantiate_symtab): ... the code here ...
(process_full_comp_unit): ... and here.
(dwarf2_fetch_die_location_block): Call load_cu first. Call xmemdup on
retval.data.
gdb/testsuite/
Fix crash if referenced CU is aged out.
* gdb.dwarf2/dw2-op-call.exp (maintenance set dwarf2 max-cache-age 0):
New.
* gdb.dwarf2/implptr.exp: Likewise.
