# Copyright 1999-2021 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/>.

#
# Test essential Machine interface (MI) operations
#
# Verify that, using the MI, we can run a simple program and perform basic
# debugging activities like: insert breakpoints, run the program,
# step, next, continue until it ends and, last but not least, quit.
#
# The goal is not to test gdb functionality, which is done by other tests,
# but to verify the correct output response to MI operations.
#

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

gdb_exit
if [mi_gdb_start] {
    continue
}

standard_testfile basics.c

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
     untested "failed to compile"
     return -1
}

mi_delete_breakpoints
mi_gdb_reinitialize_dir $srcdir/$subdir
mi_gdb_reinitialize_dir $srcdir/$subdir
mi_gdb_load ${binfile}

proc test_breakpoints_creation_and_listing {} {
    global srcfile

    set line_callee4_head  [gdb_get_line_number "callee4 ("]
    set line_callee4_body  [expr $line_callee4_head + 2]
    set line_callee3_head  [gdb_get_line_number "callee3 ("]
    set line_callee3_body  [expr $line_callee3_head + 2]
    set line_callee2_head  [gdb_get_line_number "callee2 ("]
    set line_callee2_body  [expr $line_callee2_head + 2]
    set line_main_head     [gdb_get_line_number "main ("]
    set line_main_body     [expr $line_main_head + 2]

    # Insert some breakpoints and list them
    # Also, disable some so they do not interfere with other tests
    # Tests:
    # -break-insert
    # -break-list
    # -break-disable
    # -break-info

    set bps {}
    lappend bps [mi_create_breakpoint "--qualified main" \
		     "break-insert operation" \
		     -number 1 -func main -file ".*basics.c" \
		     -line $line_main_body]

    lappend bps [mi_create_breakpoint "basics.c:callee2" \
		     "insert breakpoint at basics.c:callee2" \
		     -number 2 -func callee2 -file ".*basics.c" \
		     -line $line_callee2_body]

    lappend bps [mi_create_breakpoint "basics.c:$line_callee3_head" \
		     "insert breakpoint at basics.c:\$line_callee3_head" \
		     -number 3 -func callee3 -file ".*basics.c" \
		     -line $line_callee3_body]

    lappend bps [mi_create_breakpoint \
		     "\"\\\"${srcfile}\\\":$line_callee4_head\"" \
		     "insert breakpoint at \"<fullfilename>\":\$line_callee4_head" \
		     -number 4 -func callee4 -file ".*basics.c" \
		     -line $line_callee4_body]

    mi_gdb_test "204-break-list" \
	"204\\^done,[mi_make_breakpoint_table $bps]" \
	"list of breakpoints"

    mi_gdb_test "205-break-disable 2 3 4" \
                "205\\^done.*" \
                "disabling of breakpoints"

    set bp2 [mi_make_breakpoint -number 2 -enabled n]
    mi_gdb_test "206-break-info 2" \
	"206\\^done,[mi_make_breakpoint_table [list $bp2]]"\
	"list of breakpoints, 16 disabled"
}

proc test_running_the_program {} {
    set line_main_head     [gdb_get_line_number "main ("]
    set line_main_body     [expr $line_main_head + 2]

    # Run the program without args, then specify srgs and rerun the program
    # Tests:
    # -exec-run
    # -gdb-set

    # mi_gdb_test cannot be used for asynchronous commands because there are
    # two prompts involved and this can lead to a race condition.
    # The following is equivalent to a send_gdb "000-exec-run\n"
    mi_run_cmd
    mi_expect_stop "breakpoint-hit" "main" "" ".*basics.c" "$line_main_body" \
      { "" "disp=\"keep\"" } "run to main"
}

proc test_controlled_execution {} {
    global hex

    set line_callee4_head         [gdb_get_line_number "callee4 ("]
    set line_callee4_body         [expr $line_callee4_head + 2]
    set line_callee3_head         [gdb_get_line_number "callee3 ("]
    set line_callee3_call         [expr $line_callee3_head + 2]
    set line_callee3_close_brace  [expr $line_callee3_head + 3]
    set line_callee1_head         [gdb_get_line_number "callee1 ("]
    set line_callee1_body         [expr $line_callee1_head + 2]
    set line_main_head            [gdb_get_line_number "main ("]
    set line_main_body            [expr $line_main_head + 2]

    # Continue execution until a breakpoint is reached, step into calls, verifying
    # if the arguments are correctly shown, continue to the end of a called
    # function, step over a call (next).
    # Tests:
    # -exec-continue
    # -exec-next
    # -exec-step
    # -exec-finish

    mi_next_to "main" "" "basics.c" [expr $line_main_body + 1] "next at main"

    # FIXME: A string argument is not printed right; should be fixed and
    #        we should look for the right thing here.
    # NOTE: The ``\\\\\"'' is for \".
    mi_step_to "callee1" \
	"\{name=\"intarg\",value=\"2\"\},\{name=\"strarg\",value=\"$hex \\\\\"A string argument\.\\\\\"\"\},\{name=\"fltarg\",value=\"3.5\"\}" \
	"basics.c" "$line_callee1_body" "step at main"

    # FIXME: A string argument is not printed right; should be fixed and
    #        we should look for the right thing here.
    mi_execute_to "exec-step 3" "end-stepping-range" "callee4" "" \
	"basics.c" $line_callee4_body "" "step to callee4"

    # FIXME: A string argument is not printed right; should be fixed and
    #        we should look for the right thing here.
    # NOTE: The ``.'' is part of ``gdb-result-var="$1"''
    mi_finish_to "callee3" ".*" "basics.c" \
	"($line_callee3_call|$line_callee3_close_brace)" ".1" "0" "exec-finish"
}

proc test_controlling_breakpoints {} {
    # Enable, delete, set ignore counts in breakpoints
    # (disable was already tested above)
    # Tests:
    # -break-delete
    # -break-enable
    # -break-after
    # -break-condition

}

proc test_program_termination {} {
    # Run to completion: normal and forced
    # Tests:
    # -exec-abort
    # (normal termination of inferior)

    mi_execute_to "exec-continue" "exited-normally" "" "" "" "" "" "continue to end"
}

test_breakpoints_creation_and_listing
test_running_the_program
test_controlled_execution
test_controlling_breakpoints
test_program_termination

mi_gdb_exit
return 0