binutils-gdb/gdb/testsuite/gdb.mi
Pedro Alves 3eb7562a98 Fix PR gdb/20418 - Problems with synchronous commands and new-ui
When executing commands on a secondary UI running the MI interpreter,
some commands that should be synchronous are not.  MI incorrectly
continues processing input right after the synchronous command is
sent, before the target stops.

The problem happens when we emit MI async events (=library-loaded,
etc.), and we go about restoring the previous terminal state, we end
up calling target_terminal_ours, which incorrectly always installs the
current UI's input_fd in the event loop...  That is, code like this:

   old_chain = make_cleanup_restore_target_terminal ();
   target_terminal_ours_for_output ();

   fprintf_unfiltered (mi->event_channel, "library-loaded");

...

   do_cleanups (old_chain);

The fix is to move the add_file_handler/delete_file_handler calls out
of target_terminal_$foo, making these completely no-ops unless called
with the main UI as current UI.

gdb/ChangeLog:
2016-08-09  Pedro Alves  <palves@redhat.com>

	PR gdb/20418
	* event-top.c (ui_register_input_event_handler)
	(ui_unregister_input_event_handler): New functions.
	(async_enable_stdin): Register input in the event loop.
	(async_disable_stdin): Unregister input from the event loop.
	(gdb_setup_readline): Register input in the event loop.
	* infrun.c (check_curr_ui_sync_execution_done): Register input in
	the event loop.
	* target.c (target_terminal_inferior): Don't unregister input from
	the event loop.
	(target_terminal_ours): Don't register input in the event loop.
	* target.h (target_terminal_inferior)
	(target_terminal_ours_for_output, target_terminal_ours): Update
	comments.
	* top.h (ui_register_input_event_handler)
	(ui_unregister_input_event_handler): New declarations.
	* utils.c (ui_unregister_input_event_handler_cleanup)
	(prepare_to_handle_input): New functions.
	(defaulted_query, prompt_for_continue): Use
	prepare_to_handle_input.

gdb/testsuite/ChangeLog:
2016-08-09  Pedro Alves  <palves@redhat.com>
	    Simon Marchi  <simon.marchi@ericsson.com>

	PR gdb/20418
	* gdb.mi/new-ui-mi-sync.c, gdb.mi/new-ui-mi-sync.exp: New files.
	* lib/mi-support.exp (mi_expect_interrupt): Remove anchors.
2016-08-09 22:50:45 +01:00
..
array.f
basics.c
ChangeLog-1999-2003
dw2-ref-missing-frame-func.c
dw2-ref-missing-frame-main.c
dw2-ref-missing-frame.exp
dw2-ref-missing-frame.S
gdb669.exp
gdb680.exp
gdb701.c
gdb701.exp
gdb792.cc
gdb792.exp
gdb2549.exp
mi2-amd64-entry-value.c
mi2-amd64-entry-value.exp
mi2-amd64-entry-value.s
mi2-prompt.exp
mi2-var-child.exp
mi-async-run.c
mi-async-run.exp
mi-async.exp
mi-basics.exp
mi-break.exp Make mi-break.exp always expect breakpoint commands output on the main UI 2016-06-21 01:11:56 +01:00
mi-breakpoint-changed.exp
mi-catch-load-so.c
mi-catch-load.c
mi-catch-load.exp
mi-cli.exp
mi-cmd-error.exp Fix PR mi/20431 - Missing MI prompts after sync execution MI command (-exec-continue, etc.) errors 2016-08-09 22:45:39 +01:00
mi-cmd-param-changed.exp
mi-condbreak-call-thr-state-mt.c
mi-condbreak-call-thr-state-st.c
mi-condbreak-call-thr-state.c
mi-condbreak-call-thr-state.exp
mi-console.c
mi-console.exp
mi-detach.exp
mi-disassemble.exp
mi-dprintf-pending.c
mi-dprintf-pending.exp
mi-dprintf-pendshr.c
mi-dprintf.c
mi-dprintf.exp
mi-editing.exp Make command line editing (use of readline) be per UI 2016-06-21 01:11:48 +01:00
mi-eval.exp
mi-exec-run.exp Always switch fork child to the main UI 2016-06-21 01:11:57 +01:00
mi-exit-code.c
mi-exit-code.exp
mi-file-transfer.exp
mi-file.exp
mi-fill-memory.exp
mi-fullname-deleted.exp
mi-hack-cli.exp
mi-i-cmd.exp
mi-info-os.exp
mi-inheritance-syntax-error.cc
mi-inheritance-syntax-error.exp
mi-language.exp
mi-linespec-err-cp.cc
mi-linespec-err-cp.exp
mi-logging.exp
mi-memory-changed.exp mi-memory-changed.exp: Fix filename passed to untested 2016-06-02 10:08:28 -04:00
mi-nonstop-exit.exp
mi-nonstop.exp
mi-ns-stale-regcache.exp
mi-nsintrall.exp
mi-nsmoribund.exp
mi-nsthrexec.exp
mi-pending.c
mi-pending.exp
mi-pendshr2.c
mi-pendshr.c
mi-pthreads.exp
mi-read-memory.c
mi-read-memory.exp
mi-record-changed.exp Add method/format information to =record-started 2016-06-06 17:10:18 -04:00
mi-reg-undefined.c
mi-reg-undefined.exp
mi-reg-undefined.S
mi-regs.exp
mi-return.exp
mi-reverse.exp Fix fail in gdb.mi/mi-reverse.exp 2016-07-05 14:48:07 +01:00
mi-simplerun.exp
mi-solib.exp
mi-stack.c
mi-stack.exp
mi-start.c
mi-start.exp
mi-stepi.exp
mi-stepn.c
mi-stepn.exp
mi-syn-frame.c
mi-syn-frame.exp
mi-threads-interrupt.c
mi-threads-interrupt.exp
mi-undefined-cmd.exp
mi-until.exp
mi-var-block.exp
mi-var-child-f.exp
mi-var-child.c
mi-var-child.exp
mi-var-cmd.exp
mi-var-cp.cc
mi-var-cp.exp
mi-var-create-rtti.c
mi-var-create-rtti.exp
mi-var-display.exp
mi-var-invalidate.exp
mi-var-list-children-invalid-grandchild.c
mi-var-list-children-invalid-grandchild.exp
mi-var-rtti.cc
mi-var-rtti.exp
mi-vla-c99.exp
mi-vla-fortran.exp
mi-watch-nonstop.exp
mi-watch.exp Send deleted watchpoint-scope output to all UIs 2016-06-21 01:11:56 +01:00
new-ui-mi-sync.c Fix PR gdb/20418 - Problems with synchronous commands and new-ui 2016-08-09 22:50:45 +01:00
new-ui-mi-sync.exp Fix PR gdb/20418 - Problems with synchronous commands and new-ui 2016-08-09 22:50:45 +01:00
non-stop-exit.c
non-stop.c
ns-stale-regcache.c
nsintrall.c
nsmoribund.c
nsthrexec.c
pending.c
pendshr1.c
pendshr2.c
pr11022.c
pr11022.exp
pthreads.c
solib-lib.c
solib-main.c
testcmds
until.c
var-cmd.c
vla.c
vla.f90
watch-nonstop.c