# This testcase is part of GDB, the GNU debugger.

# Copyright 2007-2014 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/>.

# Test attaching to multiple threaded programs.

standard_testfile

# We need to use TCL's exec to get the pid.
if [is_remote target] then {
    return 0
}

if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug additional_flags=-lpthread}]} {
    return -1
}

# Start the programs running and then wait for a bit, to be sure that
# they can be attached to.
set testpid1 [eval exec $binfile &]
set testpid2 [eval exec $binfile &]
exec sleep 2
if { [istarget "*-*-cygwin*"] } {
    # testpid{1,2} are the Cygwin PID, GDB uses the Windows PID, which might be
    # different due to the way fork/exec works.
    set testpid1 [ exec ps -e | gawk "{ if (\$1 == $testpid1) print \$4; }" ]
    set testpid2 [ exec ps -e | gawk "{ if (\$1 == $testpid2) print \$4; }" ]
}

gdb_test "attach $testpid1" \
    "Attaching to program: .*, process $testpid1.*(in|at).*" \
    "attach to program 1"
gdb_test "backtrace" ".*main.*" "backtrace 1"

gdb_test "add-inferior -exec $binfile" \
    "Added inferior 2.*" \
    "add second inferior"
gdb_test "inferior 2" ".*Switching to inferior 2.*" "switch to second inferior"

gdb_test "attach $testpid2" \
    "Attaching to program: .*, process $testpid2.*(in|at).*" \
    "attach to program 2"
gdb_test "backtrace" ".*main.*" "backtrace 2"

gdb_test "kill" "" "kill inferior 2" "Kill the program being debugged.*" "y"
gdb_test "inferior 1" ".*Switching to inferior 1.*"
gdb_test "kill" "" "kill inferior 1" "Kill the program being debugged.*" "y"