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# Copyright 2009-2022 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 Machine interface (MI) operations
# Verify that, using the MI, we can run a simple program in both forward
# and reverse directions with the following execution commands:
# - exec-continue
# - exec-finish
# - exec-next
# - exec-step
# - exec-next-instruction
# - exec-step-instruction
# The goal is not to test gdb functionality, which is done by other tests,
# but to verify the correct output response to MI operations.
#
if ![supports_reverse] {
return
}
load_lib mi-support.exp
set MIFLAGS "-i=mi"
standard_testfile basics.c
if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
untested "failed to compile"
return -1
}
mi_clean_restart $binfile
mi_runto_main
if [supports_process_record] {
# Activate process record/replay
if [mi_gdb_test "-interpreter-exec console record" \
"=record-started,thread-group=\"i1\",method=\"full\"\r\n\\^done" \
"Turn on process record"] {
warning "Fail to activate process record/replay, tests in this group will not be performed.\n"
return -1
}
}
# Locate line numbers in basics.c.
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_callee3_close [expr $line_callee3_head + 3]
set line_callee2_head [gdb_get_line_number "callee2 ("]
set line_callee2_body [expr $line_callee2_head + 2]
set line_callee2_close [expr $line_callee2_head + 3]
set line_callee1_head [gdb_get_line_number "callee1 ("]
set line_callee1_body [expr $line_callee1_head + 2]
set line_callee1_close [expr $line_callee1_head + 3]
set line_callme_head [gdb_get_line_number "callme"]
set line_callme_body [expr $line_callme_head + 2]
set line_main_head [gdb_get_line_number "main ("]
set line_main_body [expr $line_main_head + 2]
set line_main_hello [gdb_get_line_number "Hello, World!"]
set line_main_callme_1 [gdb_get_line_number "callme (1"]
# Forward execute to the callme() function, so that we can
# execute backward from there.
mi_continue_to callme
mi_delete_breakpoints
proc test_controlled_execution_reverse {} {
global mi_gdb_prompt
global srcfile
global hex
global line_callee4_head line_callee4_body
global line_callee3_head line_callee3_body line_callee3_close
global line_callee2_head line_callee2_body line_callee2_close
global line_callee1_head line_callee1_body line_callee1_close
global line_main_head line_main_body
global line_main_hello line_main_callme_1
# Test exec-reverse-finish
mi_execute_to "exec-finish --reverse" \
"end-stepping-range" "main" "" \
"basics.c" $line_main_callme_1 "" \
"reverse finish from callme"
# Test exec-reverse-next
# It takes two steps to get back to the previous line,
# as the first step moves us to the start of the current line,
# and the one after that moves back to the previous line.
mi_execute_to "exec-next --reverse 2" \
"end-stepping-range" "main" "" \
"basics.c" $line_main_hello "" \
"reverse next to get over the call to do_nothing"
# Test exec-reverse-step
mi_execute_to "exec-step --reverse" \
"end-stepping-range" "callee1" \
"\{name=\"intarg\",value=\"2\"\},\{name=\"strarg\",value=\"$hex \\\\\"A string argument\.\\\\\"\"\},\{name=\"fltarg\",value=\"3.5\[0-9\]*\"\}" \
"basics.c" $line_callee1_close "" \
"reverse step to callee1"
mi_execute_to "exec-step --reverse" \
"end-stepping-range" "callee2" \
"\{name=\"intarg\",value=\"2\"\},\{name=\"strarg\",value=\"$hex \\\\\"A string argument\.\\\\\"\"\}" \
"basics.c" $line_callee2_close "" \
"reverse step to callee2"
mi_execute_to "exec-step --reverse" \
"end-stepping-range" "callee3" \
"\{name=\"strarg\",value=\"$hex \\\\\"A string argument\.\\\\\"\"\}" \
"basics.c" $line_callee3_close "" \
"reverse step to callee3"
mi_execute_to "exec-step --reverse" \
"end-stepping-range" "callee4" "" \
"basics.c" "\[0-9\]+" "" \
"reverse step to callee4"
# Test exec-reverse-[step|next]-instruction
mi_execute_to "exec-step-instruction --reverse" \
"end-stepping-range" "callee4" "" \
"basics.c" "\[0-9\]+" "" \
"reverse-step-instruction at callee4"
mi_execute_to "exec-next-instruction --reverse" \
"end-stepping-range" "callee4" "" \
"basics.c" "\[0-9\]+" "" \
"reverse-next-instruction at callee4"
# Test exec-reverse-continue
mi_create_breakpoint "-t basics.c:$line_callee3_head" \
"insert temp breakpoint at basics.c:$line_callee3_head" \
-number 3 -disp del -func callee3 -file ".*basics.c" \
-line $line_callee3_body
mi_execute_to "exec-continue --reverse" \
"breakpoint-hit" "callee3" \
"\{name=\"strarg\",value=\"$hex \\\\\"A string argument\.\\\\\"\"\}" \
"basics.c" "\[0-9\]+" \
{ "" "disp=\"del\""} \
"reverse-continue at callee3"
mi_execute_to "exec-continue --reverse" \
"" "main" "" \
"basics.c" $line_main_body "" \
"reverse-continue at main"
}
test_controlled_execution_reverse
mi_gdb_exit
return 0
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