gdb/testsuite/gdb.python/py-record-btrace.exp

# This testcase is part of GDB, the GNU debugger.
#
# Copyright 2016-2021 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/>.

# Skip this test if btrace is disabled.

if { [skip_btrace_tests] } {
    untested "skipping btrace tests"
    return -1
}

load_lib gdb-python.exp

standard_testfile

if [prepare_for_testing "failed to prepare" $testfile $srcfile] { return -1 }

# Skip this test if python is disabled.

if { [skip_python_tests] } {
    untested "skipping python tests"
    return -1
}

if ![runto_main ] then {
    return -1
}

with_test_prefix "no or double record" {
    gdb_test "python print(gdb.current_recording())" "None"

    gdb_test_no_output "python gdb.start_recording(\"btrace\")"
    gdb_test "python gdb.start_recording(\"btrace\")" \
	".*gdb\.error: The process is already being recorded\..*" \
	"already recording"

    gdb_test_no_output "python gdb.stop_recording()" "first"
    gdb_test "python gdb.stop_recording()" \
	".*gdb\.error: No recording is currently active\..*" "second"
}

with_test_prefix "preopened record btrace" {
    gdb_test_no_output "record btrace"
    gdb_test "python print(gdb.current_recording().method)" "btrace"
    gdb_test "python print(gdb.current_recording().format)" "pt|bts"
    gdb_test_no_output "python gdb.stop_recording()"
}

with_test_prefix "prepare record" {
    gdb_test_no_output "python r = gdb.start_recording(\"btrace\")"
    gdb_test "python print(r.method)" "btrace"
    gdb_test "python print(r.format)" "pt|bts"
    gdb_test "stepi 100" ".*"
    gdb_test_no_output "python insn = r.instruction_history"
    gdb_test_no_output "python call = r.function_call_history"
    gdb_test_no_output "python i = insn\[0\]"
    gdb_test_no_output "python c = call\[0\]"
}

with_test_prefix "replay begin" {
    gdb_test "python print(r.replay_position)" "None"
    gdb_test "python r.goto(r.begin)"
    gdb_test "python print(r.replay_position.number)" "1"
}

with_test_prefix "replay end" {
    gdb_test "python r.goto(r.end)"
    gdb_test "python print(r.replay_position)" "None"
}

with_test_prefix "instruction " {
    gdb_test "python print(i.number)" "1"
    gdb_test "python print(i.sal)" "symbol and line for .*"
    gdb_test "python print(i.pc)" "$decimal"
    if { $gdb_py_is_py3k == 0 } {
	gdb_test "python print(repr(i.data))" "<read-only buffer for $hex,.*>"
    } else {
	gdb_test "python print(repr(i.data))" "<memory at $hex>"
    }
    gdb_test "python print(i.decoded)" ".*"
    gdb_test "python print(i.size)" "$decimal"
    gdb_test "python print(i.is_speculative)" "False"
}

with_test_prefix "function call" {
    gdb_test "python print(c.number)" "1"
    gdb_test "python print(c.symbol)" "main"
    gdb_test "python print(c.level)" "$decimal"
    gdb_test "python print(len(c.instructions))" "$decimal"
    gdb_test "python print(c.up)" "None"
    gdb_test "python print(c.prev)" "None"
    gdb_test "python print(c == c.next.prev)" "True"
}

with_test_prefix "list" {
    gdb_test "python print(len(insn))" "100"
    gdb_test "python print(len(insn\[23:65\]))" "42"
    gdb_test "python print(insn\[17:\]\[2\].number)" "20"
    gdb_test "python print(i in insn)" "True"
    gdb_test "python print(i in call)" "False"
    gdb_test "python print(c in insn)" "False"
    gdb_test "python print(c in call)" "True"
    gdb_test "python print(insn.index(i))" "0"
    gdb_test "python print(insn.count(i))" "1"
}

with_test_prefix "sublist" {
    gdb_test_no_output "python s1 = insn\[3:72:5\]"
    gdb_test_no_output "python s2 = s1\[2:13:3\]"
    gdb_test_no_output "python s3 = s1\[13:2:-3\]"
    gdb_test_no_output "python s4 = insn\[::-1\]"

    gdb_test "python print(\[i.number for i in s1\])" "\\\[4, 9, 14, 19, 24, 29, 34, 39, 44, 49, 54, 59, 64, 69\\\]"
    gdb_test "python print(\[i.number for i in s2\])" "\\\[14, 29, 44, 59\\\]"
    gdb_test "python print(\[i.number for i in s3\])" "\\\[69, 54, 39, 24\\\]"

    gdb_test "python print(len(s1))" "14"
    gdb_test "python print(len(s2))" "4"
    gdb_test "python print(len(s3))" "4"
    gdb_test "python print(len(s4))" "100"

    gdb_test "python print(s4\[5\].number)" "95"
    gdb_test "python print(s4\[-5\].number)" "5"
    gdb_test "python print(s4\[100\].number)" ".*IndexError.*"
    gdb_test "python print(s4\[-101\].number)" ".*IndexError.*"
}

with_test_prefix "level" {
    gdb_test_no_output "python gdb.stop_recording()"
    gdb_test "break inner" "Breakpoint.*"
    gdb_test "continue" "Continuing\..*"
    gdb_test_no_output "record btrace"
    gdb_test "step" "outer ().*" "step one"
    gdb_test "step" "main ().*" "step two"
    gdb_test "python print(gdb.current_recording().function_call_history\[0\].level)" "1"
    gdb_test "python print(gdb.current_recording().function_call_history\[1\].level)" "0"
}