From b5f0db46b3057bcb64243e7da0943717abd6459b Mon Sep 17 00:00:00 2001 From: Simon Marchi Date: Tue, 17 May 2016 16:44:57 -0400 Subject: [PATCH] Fix -exec-run not running asynchronously with mi-async on (PR gdb/18077) When doing -exec-run on a freshly started GDB, the only target on the target stack at the time the dummy one. When mi_async_p is called to know whether the run should be async, it queries whether the current target (dummy) supports async, and the answer is no. The fix is to make the code query the target that will be used for the run, which is not necessarily the current target. No regressions in the gdb.mi directory using the unix, native-gdbserver and native-extended-gdbserver boards. The test doesn't pass when forcing maint set target-async off, obviously, since it makes mi-async have no effect. It doesn't seem like other tests are checking for that eventuality, so I didn't in the new test. gdb/ChangeLog: * mi/mi-main.c (run_one_inferior): Use run target to determine whether to run async or not. (mi_cmd_exec_run): Likewise. gdb/testsuite/ChangeLog: * gdb.mi/mi-async-run.exp: New file. * gdb.mi/mi-async-run.c: New file. --- gdb/ChangeLog | 7 ++++ gdb/mi/mi-main.c | 12 ++++--- gdb/testsuite/ChangeLog | 6 ++++ gdb/testsuite/gdb.mi/mi-async-run.c | 31 +++++++++++++++++ gdb/testsuite/gdb.mi/mi-async-run.exp | 50 +++++++++++++++++++++++++++ 5 files changed, 102 insertions(+), 4 deletions(-) create mode 100644 gdb/testsuite/gdb.mi/mi-async-run.c create mode 100644 gdb/testsuite/gdb.mi/mi-async-run.exp diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 75778cfd441..30c6e4bfcf2 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,3 +1,10 @@ +2016-05-17 Simon Marchi + + PR gdb/18077 + * mi/mi-main.c (run_one_inferior): Use run target to determine + whether to run async or not. + (mi_cmd_exec_run): Likewise. + 2016-05-16 Pedro Alves PR gdb/20039 diff --git a/gdb/mi/mi-main.c b/gdb/mi/mi-main.c index 7cb7bf584b5..6c10d45b2bd 100644 --- a/gdb/mi/mi-main.c +++ b/gdb/mi/mi-main.c @@ -415,6 +415,8 @@ run_one_inferior (struct inferior *inf, void *arg) { int start_p = *(int *) arg; const char *run_cmd = start_p ? "start" : "run"; + struct target_ops *run_target = find_run_target (); + int async_p = mi_async && run_target->to_can_async_p (run_target); if (inf->pid != 0) { @@ -435,8 +437,8 @@ run_one_inferior (struct inferior *inf, void *arg) switch_to_thread (null_ptid); set_current_program_space (inf->pspace); } - mi_execute_cli_command (run_cmd, mi_async_p (), - mi_async_p () ? "&" : NULL); + mi_execute_cli_command (run_cmd, async_p, + async_p ? "&" : NULL); return 0; } @@ -489,9 +491,11 @@ mi_cmd_exec_run (char *command, char **argv, int argc) else { const char *run_cmd = start_p ? "start" : "run"; + struct target_ops *run_target = find_run_target (); + int async_p = mi_async && run_target->to_can_async_p (run_target); - mi_execute_cli_command (run_cmd, mi_async_p (), - mi_async_p () ? "&" : NULL); + mi_execute_cli_command (run_cmd, async_p, + async_p ? "&" : NULL); } } diff --git a/gdb/testsuite/ChangeLog b/gdb/testsuite/ChangeLog index e0175d81f26..0333f8300c0 100644 --- a/gdb/testsuite/ChangeLog +++ b/gdb/testsuite/ChangeLog @@ -1,3 +1,9 @@ +2016-05-17 Simon Marchi + + PR gdb/18077 + * gdb.mi/mi-async-run.exp: New file. + * gdb.mi/mi-async-run.c: New file. + 2016-03-31 Pedro Alves PR gdb/19858 diff --git a/gdb/testsuite/gdb.mi/mi-async-run.c b/gdb/testsuite/gdb.mi/mi-async-run.c new file mode 100644 index 00000000000..00ed35c444b --- /dev/null +++ b/gdb/testsuite/gdb.mi/mi-async-run.c @@ -0,0 +1,31 @@ +/* Copyright 2016 Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +#include + +int +main () +{ + int i; + + for (i = 0; i < 30; i++) + { + sleep (1); + } + + return 0; +} diff --git a/gdb/testsuite/gdb.mi/mi-async-run.exp b/gdb/testsuite/gdb.mi/mi-async-run.exp new file mode 100644 index 00000000000..c08a4a6db47 --- /dev/null +++ b/gdb/testsuite/gdb.mi/mi-async-run.exp @@ -0,0 +1,50 @@ +# Copyright 2016 Free Software Foundation, Inc. + +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 3 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +load_lib mi-support.exp + +standard_testfile + +if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { + untested "mi-async-run.exp" + return -1 +} + +# Test the resolution of PR 18077 +# +# When doing an -exec-run with a fresh copy of GDB, it would result in +# synchronous execution, even though mi-async was on. + +proc test_async_run {} { + global GDBFLAGS + + save_vars { GDBFLAGS } { + global binfile + + set GDBFLAGS [concat $GDBFLAGS " -ex \"set mi-async on\""] + + gdb_exit + if [mi_gdb_start] { + continue + } + + mi_gdb_load ${binfile} + mi_run_cmd + mi_gdb_test "123-exec-interrupt --all" "123\\^done" "send interrupt command" + mi_expect_interrupt "expect interrupt" + } +} + +test_async_run -- 2.47.2