# Copyright 2012-2021 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/>.

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

load_lib mi-support.exp

if [mi_gdb_start] {
    return
}
mi_gdb_reinitialize_dir $srcdir/$subdir
mi_gdb_load ${binfile}

mi_gdb_test "-break-insert -t ${srcfile}:[gdb_get_line_number "C = A + B"]" \
    "\\^done,bkpt=\{number=\"1\".*" \
    "insert breakpoint"
mi_run_cmd
mi_expect_stop "breakpoint-hit" "callee4" "" ".*" ".*" {"" "disp=\"del\""} \
    "continue to callee4"

mi_gdb_test "set var C = 4" \
    ".*=memory-changed,thread-group=\"i${decimal}\".addr=\"${hex}\",len=\"${hex}\".*\\^done" \
    "set var C = 4"

# Write memory through MI commands shouldn't trigger MI notification.
mi_gdb_test "-var-create var_c * C" \
    "\\^done,name=\"var_c\",numchild=\"0\",value=\"4\",type=\"int\",thread-id=\"1\",has_more=\"0\"" \
    "create objvar for C"

mi_gdb_test "-var-assign var_c 5" \
    "-var-assign var_c 5\r\n\\^done,value=\"5\"" \
    "change C thru. varobj"

mi_gdb_test  "-data-write-memory-bytes &C \"00\"" \
    {\^done} \
    "change C thru. -data-write-memory-bytes"

# Modify code section also triggers MI notification.

# Get the instruction content of function main and its address.
set main_addr ""
set main_insn ""
set test "get address of main"
send_gdb "x/x main\n"
gdb_expect {
    -re ".*(${hex}) <main>:.*(${hex}).*$mi_gdb_prompt$" {
	set main_addr $expect_out(1,string)
	set main_insn $expect_out(2,string)
	pass $test
    }
    -re ".*$mi_gdb_prompt$" {
	fail $test
	return
    }
    timeout {
	fail "$test (timeout)"
	return
    }
}

regsub ^0x0* $main_addr "" main_addr
mi_gdb_test "set var *(unsigned int *) 0x${main_addr} = ${main_insn}" \
    ".*=memory-changed,thread-group=\"i${decimal}\".addr=\"0x0*${main_addr}\",len=\"0x4\",type=\"code\".*\\^done"
mi_gdb_exit
return 0