# Copyright 2018-2021 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/>.

# Tests various things related to breakpoints with multiple locations.

load_lib mi-support.exp
standard_testfile .cc

if {[gdb_compile "$srcdir/$subdir/$srcfile" $binfile executable {debug c++}] != "" } {
    return -1
}

# Generate the regexp pattern used to match the breakpoint description emitted
# in the various breakpoint command results/events.
#
# - EXPECT_FIXED_OUTPUT: If true (non-zero), we expect GDB to output the fixed
#   output for multi-locations breakpoint, else we expect it to output the
#   broken pre-mi3 format.
# - BP_NUM is the expected breakpoint number
# - LOC1_EN and LOC2_EN are the expected value of the enabled field, for the
#   two locations.


proc make_breakpoints_pattern { expect_fixed_output bp_num loc1_en loc2_en } {
    if $expect_fixed_output {
	return "bkpt=\{number=\"${bp_num}\",type=\"breakpoint\",.*,locations=\\\[\{number=\"${bp_num}\\.1\",enabled=\"${loc1_en}\",.*\},\{number=\"${bp_num}\\.2\",enabled=\"${loc2_en}\",.*\}\\\]\}"
    } else {
	return "bkpt=\{number=\"${bp_num}\",type=\"breakpoint\",.*\},\{number=\"${bp_num}\\.1\",enabled=\"${loc1_en}\",.*\},\{number=\"${bp_num}\\.2\",enabled=\"${loc2_en}\",.*\}"
    }
}

# Run the test with the following parameters:
#
# - MI_VERSION: the version of the MI interpreter to use (e.g. "2")
# - USE_FIX_FLAG: Whether to issue the -fix-multi-location-breakpoint-output
#   command after starting GDB
# - EXPECT_FIXED_OUTPUT: If true (non-zero), we expect GDB to output the fixed
#   output for multi-locations breakpoint, else we expect it to output the
#   broken pre-mi3 format.

proc do_test { mi_version use_fix_flag expect_fixed_output } {
    with_test_prefix "mi_version=${mi_version}" {
	with_test_prefix "use_fix_flag=${use_fix_flag}" {
	    global MIFLAGS decimal binfile
	    set MIFLAGS "-i=mi${mi_version}"

	    mi_clean_restart $binfile

	    mi_runto_main

	    if $use_fix_flag {
		mi_gdb_test "-fix-multi-location-breakpoint-output" "\\^done" \
		    "send -fix-multi-location-breakpoint-output"
	    }

	    # Check the breakpoint-created event.
	    set pattern [make_breakpoints_pattern $expect_fixed_output 2 y y]
	    mi_gdb_test "break add" \
		[multi_line "&\"break add\\\\n\"" \
			    "~\"Breakpoint ${decimal} at.*\\(2 locations\\)\\\\n\"" \
			    "=breakpoint-created,${pattern}" \
			    "\\^done" ] \
		"break add"

	    # Check the -break-info output.
	    mi_gdb_test "-break-info" \
		"\\^done,BreakpointTable=\{.*,body=\\\[${pattern}\\\]\}" \
		"-break-info"

	    # Check the -break-insert response.
	    set pattern [make_breakpoints_pattern $expect_fixed_output 3 y y]
	    mi_gdb_test "-break-insert add" "\\^done,${pattern}" "insert breakpoint with MI command"

	    # Modify enableness through MI commands shouldn't trigger MI
	    # notification.
	    mi_gdb_test "-break-disable 2.2" "\\^done" "-break-disable 2.2"
	    mi_gdb_test "-break-enable 2.2"  "\\^done" "-break-enable 2.2"

	    # Modify enableness through CLI commands should trigger MI
	    # notification.
	    set pattern [make_breakpoints_pattern $expect_fixed_output 2 y n]
	    mi_gdb_test "dis 2.2" \
		[multi_line "&\"dis 2.2\\\\n\"" \
			    "=breakpoint-modified,${pattern}" \
			    "\\^done" ] \
		"dis 2.2"
	    set pattern [make_breakpoints_pattern $expect_fixed_output 2 y y]
	    mi_gdb_test "en 2.2" \
		[multi_line "&\"en 2.2\\\\n\"" \
			    "=breakpoint-modified,${pattern}" \
			    "\\^done" ] \
		"en 2.2"

	    mi_gdb_exit
	}
    }
}

# Vanilla mi2
do_test 2 0 0

# mi2 with -fix-multi-location-breakpoint-output
do_test 2 1 1

# Vanilla mi3
do_test 3 0 1

# mi3 with -fix-multi-location-breakpoint-output
do_test 3 1 1

# Whatever MI version is currently the default one, vanilla
do_test "" 0 1

# Whatever MI version is currently the default one, with
# -fix-multi-location-breakpoint-output
do_test "" 1 1