Before this change, trying to complete an expression ending with an
ambiguous function name (i.e. for which there are multiple matches)
would display a menu with a prompt for the user to pick one. For
instance:
(gdb) p func<tab>Multiple matches for func
[0] cancel
[1] pack2.func at pack2.adb:5
[2] pack.func at pack.adb:5
>
This is not user friendly and actually triggered a segmentation fault
after the user did pick one. It is not clear whether the segmentation
fault needs a separate fix, but this is the only known case which
exhibits it at the moment, and this case must be fixed itself.
The problem lies in ada-lang.c (ada_resolve_function): when we got
multiple matches, we should not display the menu if we are in completion
mode. This patch adjusts the corresponding condition accordingly.
gdb/ChangeLog:
* ada-lang.c (ada_resolve_function): Do not ask the user what
match to use when in completion mode.
gdb/testsuite/ChangeLog:
* gdb.ada/complete.exp: Add "pck.ambiguous_func" to the relevant
expected outputs. Add two testcases for completing ambiguous
functions.
* gdb.ada/complete/aux_pck.adb: New file.
* gdb.ada/complete/aux_pck.ads: New file.
* gdb.ada/complete/foo.adb: Pull Aux_Pck and call the two
Ambiguous_Func functions.
* gdb.ada/complete/pck.ads: Add an Ambiguous_Func function.
* gdb.ada/complete/pck.adb: Likewise.
Tested on x86_64-linux, no regression.
The completion feature and other features on readline depend on the
readline library. However, readline library is not always used, for
example, running testsuite like
make check RUNTESTFLAGS="--host_board=local-remote-host"
the input stream is not a tty, and GDB doesn't use readline library
as a result.
This patch is to skip tests on completion and readline if
'show editing' is off, which means readline isn't used. Note that
some tests in gdb.base/completion.exp test command complete, which
isn't related to readline, so these tests aren't affected by readline
library. This patch also moves these tests up, run them
unconditionally, and run the rest if readline library is used.
gdb/testsuite:
2014-03-26 Yao Qi <yao@codesourcery.com>
* lib/gdb.exp (readline_is_used): New proc.
* gdb.base/completion.exp: Move tests on command complete up.
Skip the rest of tests if readline is not used.
* gdb.ada/complete.exp: Skp the test if readline is not
used.
* gdb.base/filesym.exp: Likewise.
* gdb.base/macscp.exp: Likewise.
* gdb.base/readline-ask.exp: Likewise.
* gdb.base/readline.exp: Likewise.
* gdb.python/py-cmd.exp: Likewise.
* gdb.trace/tfile.exp: Likewise.
This results in an internal-warning when trying the completion
when in Ada mode:
(gdb) b simple<TAB>
/[...]/cleanups.c:265: internal-warning: restore_my_cleanups has found a stale cleanup
A problem internal to GDB has been detected,
further debugging may prove unreliable.
Quit this debugging session? (y or n)
gdb/ChangeLog:
* ada-lang.c (ada_make_symbol_completion_list): Make sure
all cleanups are done before returning from this function.
gdb/testsuite/ChangeLog:
* gdb.ada/complete.exp: Add test verifying completion using
the "tab" key.
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.ada/aliased_array.exp: Use standard_ada_testfile.
* gdb.ada/array_bounds.exp: Use standard_ada_testfile.
* gdb.ada/array_return.exp: Use standard_ada_testfile.
* gdb.ada/array_subscript_addr.exp: Use standard_ada_testfile.
* gdb.ada/arrayidx.exp: Use standard_ada_testfile.
* gdb.ada/arrayparam.exp: Use standard_ada_testfile.
* gdb.ada/arrayptr.exp: Use standard_ada_testfile.
* gdb.ada/atomic_enum.exp: Use standard_ada_testfile.
* gdb.ada/bad-task-bp-keyword.exp: Use standard_ada_testfile.
* gdb.ada/bp_enum_homonym.exp: Use standard_ada_testfile.
* gdb.ada/bp_on_var.exp: Use standard_ada_testfile.
* gdb.ada/bp_range_type.exp: Use standard_ada_testfile.
* gdb.ada/call_pn.exp: Use standard_ada_testfile.
* gdb.ada/catch_ex.exp: Use standard_ada_testfile.
* gdb.ada/char_enum.exp: Use standard_ada_testfile.
* gdb.ada/char_param.exp: Use standard_ada_testfile.
* gdb.ada/complete.exp: Use standard_ada_testfile.
* gdb.ada/cond_lang.exp: Use standard_ada_testfile,
standard_output_file.
* gdb.ada/dyn_loc.exp: Use standard_ada_testfile.
* gdb.ada/enum_idx_packed.exp: Use standard_ada_testfile.
* gdb.ada/exec_changed.exp: Use standard_ada_testfile,
standard_output_file.
* gdb.ada/exprs.exp: Use standard_ada_testfile.
* gdb.ada/fixed_cmp.exp: Use standard_ada_testfile.
* gdb.ada/fixed_points.exp: Use standard_ada_testfile.
* gdb.ada/formatted_ref.exp: Use standard_ada_testfile.
* gdb.ada/frame_args.exp: Use standard_ada_testfile.
* gdb.ada/fullname_bp.exp: Use standard_ada_testfile.
* gdb.ada/fun_addr.exp: Use standard_ada_testfile.
* gdb.ada/fun_in_declare.exp: Use standard_ada_testfile.
* gdb.ada/funcall_param.exp: Use standard_ada_testfile.
* gdb.ada/homonym.exp: Use standard_ada_testfile.
* gdb.ada/info_locals_renaming.exp: Use standard_ada_testfile.
* gdb.ada/int_deref.exp: Use standard_ada_testfile.
* gdb.ada/interface.exp: Use standard_ada_testfile.
* gdb.ada/lang_switch.exp: Use standard_ada_testfile,
standard_output_file
* gdb.ada/mi_catch_ex.exp: Use standard_ada_testfile.
* gdb.ada/mi_task_arg.exp: Use standard_ada_testfile.
* gdb.ada/mi_task_info.exp: Use standard_ada_testfile.
* gdb.ada/mod_from_name.exp: Use standard_ada_testfile.
* gdb.ada/nested.exp: Use standard_ada_testfile.
* gdb.ada/null_array.exp: Use standard_ada_testfile.
* gdb.ada/null_record.exp: Use standard_ada_testfile.
* gdb.ada/operator_bp.exp: Use standard_ada_testfile.
* gdb.ada/packed_array.exp: Use standard_ada_testfile.
* gdb.ada/packed_tagged.exp: Use standard_ada_testfile.
* gdb.ada/print_chars.exp: Use standard_ada_testfile.
* gdb.ada/print_pc.exp: Use standard_ada_testfile.
* gdb.ada/ptr_typedef.exp: Use standard_ada_testfile.
* gdb.ada/ptype_field.exp: Use standard_ada_testfile.
* gdb.ada/ptype_tagged_param.exp: Use standard_ada_testfile.
* gdb.ada/rec_return.exp: Use standard_ada_testfile.
* gdb.ada/ref_param.exp: Use standard_ada_testfile.
* gdb.ada/ref_tick_size.exp: Use standard_ada_testfile.
* gdb.ada/same_enum.exp: Use standard_ada_testfile.
* gdb.ada/set_pckd_arr_elt.exp: Use standard_ada_testfile.
* gdb.ada/small_reg_param.exp: Use standard_ada_testfile.
* gdb.ada/start.exp: Use standard_ada_testfile.
* gdb.ada/str_ref_cmp.exp: Use standard_ada_testfile.
* gdb.ada/sym_print_name.exp: Use standard_ada_testfile.
* gdb.ada/taft_type.exp: Use standard_ada_testfile.
* gdb.ada/tagged.exp: Use standard_ada_testfile.
* gdb.ada/tagged_not_init.exp: Use standard_ada_testfile.
* gdb.ada/task_bp.exp: Use standard_ada_testfile.
* gdb.ada/tasks.exp: Use standard_ada_testfile.
* gdb.ada/tick_last_segv.exp: Use standard_ada_testfile.
* gdb.ada/type_coercion.exp: Use standard_ada_testfile.
* gdb.ada/uninitialized_vars.exp: Use standard_ada_testfile.
* gdb.ada/variant_record_packed_array.exp: Use standard_ada_testfile.
* gdb.ada/watch_arg.exp: Use standard_ada_testfile.
* gdb.ada/whatis_array_val.exp: Use standard_ada_testfile.
* gdb.ada/widewide.exp: Use standard_ada_testfile.
Joel Brobecker
Pierre-Marie de Rodat
Yao Qi
Pedro Alves
Joel Brobecker
Tom Tromey