# Copyright 2017-2020 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/>.

load_lib "ada.exp"

if { [skip_ada_tests] } { return -1 }

standard_ada_testfile crash

if {[gdb_compile_ada "${srcfile}" "${binfile}" executable [list debug]] != "" } {
  return -1
}

clean_restart ${testfile}

# Run the program to a certain point, and then use the gcore command
# to generate a core file. The only objective of this part of this
# testcase is to generate this core file, so we can then exercise
# task-switching when debugging from core files.

if { ![runto request_for_crash ]} then {
    untested "couldn't run to Request_For_Crash"
    return -1
}

set corefile [standard_output_file crash.gcore]
set core_supported [gdb_gcore_cmd "$corefile" "save a corefile"]
if {!$core_supported} {
  return -1
}

# Now taht the core file has been created, we can start the real
# part of this testcase, which is to debug using that core file.
# Restart GDB and load that core file.

clean_restart ${testfile}

set core_loaded [gdb_core_cmd "$corefile" "re-load generated corefile"]
if { $core_loaded == -1 } {
    # No use proceeding from here.
    return
}

# First, switch to task 1.

gdb_test "task 1" \
         "crash\\.request_for_crash \\(\\) at .*crash\\.adb:$decimal.*"


gdb_test "info tasks" \
         [multi_line "\\s+ID\\s+TID\\s+P-ID\\s+Pri\\s+State\\s+Name" \
                     "\\*\\s+1\\s+.*main_task" \
                     "\\s+2.*my_t"] \
         "info tasks after switching to task 1"

# Switch to task 2. Unlike in the case where we tested the switch to
# task 1, don't check the location where the debugger says the program
# is, as this might depend on the runtime, and in particular it might
# depend on whether the runtime is built with debugging information
# or not. Just check that we get the "switching to task" message, and
# we will verify right after with an additional test that the current
# task is now task 2.
gdb_test "task 2" \
         "\\\[Switching to task 2 \"my_t\"\\\].*"

gdb_test "info tasks" \
         [multi_line "\\s+ID\\s+TID\\s+P-ID\\s+Pri\\s+State\\s+Name" \
                     "\\s+1\\s+.*main_task" \
                     "\\*\\s+2.*my_t"] \
         "info tasks after switching to task 2"