gdb/testsuite/gdb.mi/mi-nsmoribund.exp

# Copyright 2008-2021 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 <http://www.gnu.org/licenses/>.

if { ![support_displaced_stepping] } { 
    unsupported "displaced stepping"
    return -1
}

load_lib mi-support.exp
set MIFLAGS "-i=mi"

#
# Start here
#
standard_testfile nsmoribund.c

set options [list debug]
if {[gdb_compile_pthreads "$srcdir/$subdir/$srcfile" $binfile executable $options] != "" } {
    return -1
}

save_vars { GDBFLAGS } {
    append GDBFLAGS " -ex \"set non-stop on\""
    mi_clean_restart $binfile
}

mi_gdb_test "-gdb-set mi-async 1" ".*"
mi_detect_async

if { [mi_runto_main] < 0 } {
    continue
}

# Keep this in sync with THREADS in the $srcfile.
set nthreads 10

# Set a breakpoint and let all threads hit it (except the main
# thread).

set bkpt_line [gdb_get_line_number "set breakpoint here"]

mi_create_breakpoint "$srcfile:$bkpt_line" \
    "breakpoint at thread_function" \
    -number 2 -function thread_function

mi_send_resuming_command "exec-continue --all" "resume all"
for {set i 0} {$i < $nthreads} {incr i} {
    mi_expect_stop "breakpoint-hit" "thread_function" "\[^\n\]*" "$srcfile" \
	"\[0-9\]*" {"" "disp=\"keep\""} "stop $i"
}

# All but the main thread should have hit it.

mi_check_thread_states \
    {"running" "stopped" "stopped" "stopped" "stopped" "stopped" "stopped" "stopped" "stopped" "stopped" "stopped"} \
    "thread state: all stopped except the main thread"

# Select a stopped thread to make sure we're able to delete
# breakpoints
mi_gdb_test "-thread-select 5" "\\^done.*" "select thread 5"

# Now that we know about all the threads, we can get rid of
# breakpoint.
mi_delete_breakpoints

# Recreate the same breakpoint, but this time, specific to thread 5.
mi_gdb_test "234-break-insert -p 5 $srcfile:$bkpt_line" \
    "234\\^done,bkpt=\{number=\"3\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\".*\",func=\"thread_function\",file=\".*\",fullname=\".*\",line=\".*\",thread-groups=\\\[\".*\"\\\],thread=\"5\",thread=\"5\",times=\"0\",original-location=\".*\"\}" \
    "thread specific breakpoint at thread_function" 

# Resume all threads.  Only thread 5 should report a stop.

set running_re ""
for {set i $nthreads} {$i > 1} {incr i -1} {
    set running_re "$running_re\\*running,thread-id=\"$decimal\"\r\n"
}
# Don't append \r\n after last line.
set running_re "$running_re\\*running,thread-id=\"$decimal\""

mi_gdb_test "-exec-continue --all" "\[^\n\]*\r\n$running_re" \
    "resume all, thread specific breakpoint"

mi_expect_stop "breakpoint-hit" "thread_function" "\[^\n\]*" "$srcfile" \
    "\[0-9\]*" {"" "disp=\"keep\""} "hit thread specific breakpoint"

# All threads except both thread 5 (and the main thread) should now be
# repeatedly hitting the thread specific breakpoint and stepping over
# it transparently.  These are internal events, so the frontend should
# see those threads as running.

mi_check_thread_states \
    {"running" "running" "running" "running" "stopped" "running" "running" "running" "running"} \
    "thread state: all running except the breakpoint thread"

# Get rid of the breakpoint while the other threads are stepping over
# it, and tell all threads to exit.  The program should exit
# gracefully shortly.  Send all commands in a row, since if something
# goes wrong with moribund locations support or displaced stepping (or
# a target bug if it can step over breakpoints itself), a spurious
# SIGTRAP/SIGSEGV can come at any time after deleting the breakpoint.
# Note that this causes multiple prompts to appear before the output
# we are interested in, so we can't use mi_gdb_test or
# gdb_test_multiple (or an MI equivalent)

mi_gdb_test "102-break-delete" "102\\^done.*"
set re [list \
	    [string_list_to_regexp ~ {"} $] \
	    $decimal \
	    [string_list_to_regexp " = 1" \\ n {"} \r\n ^ done]]
set re [join $re ""]
mi_gdb_test "print done = 1" $re

# Command exec-continue --all attempts to resume all threads, but only
# thread 5 was stopped, so only that one is reported as running.
set running_re "\\*running,thread-id=\"5\""
mi_gdb_test "103-exec-continue --all" "\[^\n\]*\r\n$running_re" \

gdb_expect {
    -re "\\*stopped,reason=\"exited-normally\"" {
       pass "resume all, program exited normally"
    }
    timeout {
       fail "resume all, waiting for program exit (timeout)"
    }
}

mi_gdb_exit