binutils-gdb/gdb/testsuite/gdb.python/py-finish-breakpoint.exp

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# Copyright (C) 2011-2014 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/>.
# This file is part of the GDB testsuite. It tests the mechanism
# exposing values to Python.
if {[skip_shlib_tests]} {
untested py-finish-breakpoint.exp
return 0
}
load_lib gdb-python.exp
set libfile "py-events-shlib"
set libsrc $srcdir/$subdir/$libfile.c
set lib_sl [standard_output_file $libfile-nodebug.so]
set lib_opts ""
standard_testfile
set exec_opts [list debug shlib=$lib_sl]
if [get_compiler_info] {
return -1
}
if { [gdb_compile_shlib $libsrc $lib_sl $lib_opts] != ""
|| [gdb_compile $srcdir/$subdir/$srcfile $binfile executable $exec_opts] != ""} {
untested "Could not compile either $libsrc or $srcdir/$subdir/$srcfile."
return -1
}
# Start with a fresh gdb.
clean_restart ${testfile}
if { [skip_python_tests] } { continue }
if { $gdb_py_is_py24 == 1 } {
# Python 2.4, 2.5 do not support the "ValueError as e" syntax used in
# the py-finish-breakpoint.py script.
untested py-finish-breakpoint.exp
return 0
}
set python_file ${srcdir}/${subdir}/${testfile}.py
# Skip all tests if Python scripting is not enabled.
if { [skip_python_tests] } { continue }
#
# Test FinishBreakpoint in normal conditions
#
clean_restart ${testfile}
gdb_load_shlibs ${lib_sl}
if ![runto_main] then {
fail "Cannot run to main."
return 0
}
gdb_test_no_output "set confirm off" "disable confirmation"
gdb_test "source $python_file" "Python script imported.*" \
"import python scripts"
gdb_breakpoint "increase_1"
gdb_test "continue" "Breakpoint .*at.*" "continue to the function to finish"
# set FinishBreakpoint
gdb_test "python finishbp_default = gdb.FinishBreakpoint ()" \
"Temporary breakpoint.*" "set FinishBreakpoint with default frame value"
gdb_test "python finishbp = MyFinishBreakpoint (gdb.parse_and_eval ('a'), gdb.newest_frame ())" \
"Temporary breakpoint.*" "set FinishBreakpoint"
gdb_test "python print (finishbp.return_value)" "None.*" \
"check return_value at init"
# check normal bp hit
gdb_test "continue" "MyFinishBreakpoint stop with.*return_value is: -5.*#0.*increase.*" \
"check MyFinishBreakpoint hit"
gdb_test "python print (finishbp.return_value)" "-5.*" "check return_value"
gdb_test "python print (finishbp_default.hit_count)" "1.*" "check finishBP on default frame has been hit"
gdb_test "python print (finishbp.is_valid())" "False.*"\
"ensure that finish bp is invalid afer normal hit"
# check FinishBreakpoint in main no allowed
gdb_test "finish" "main.*" "return to main()"
gdb_test "python MyFinishBreakpoint (None, gdb.selected_frame ())" \
"ValueError: \"FinishBreakpoint\" not meaningful in the outermost frame..*" \
"check FinishBP not allowed in main"
#
# Test FinishBreakpoint with no debug symbol
#
clean_restart ${testfile}
gdb_load_shlibs ${lib_sl}
gdb_test "source $python_file" "Python script imported.*" \
"import python scripts"
set cond_line [gdb_get_line_number "Condition Break."]
if ![runto_main] then {
fail "Cannot run to main."
return 0
}
gdb_test "print do_nothing" "no debug info.*" "ensure that shared lib has no debug info"
gdb_breakpoint "do_nothing" {temporary}
gdb_test "continue" "Temporary breakpoint .*in \\.?do_nothing.*" \
"continue to do_nothing"
gdb_test "python finishBP = SimpleFinishBreakpoint(gdb.newest_frame())" \
"SimpleFinishBreakpoint init" \
"set finish breakpoint"
gdb_test "continue" "SimpleFinishBreakpoint stop.*" "check FinishBreakpoint hit"
gdb_test "python print (finishBP.return_value)" "None" "check return value without debug symbol"
#
# Test FinishBreakpoint in function returned by longjmp
#
clean_restart ${testfile}
gdb_load_shlibs ${lib_sl}
gdb_test "source $python_file" "Python script imported.*" \
"import python scripts"
if ![runto call_longjmp_1] then {
perror "couldn't run to breakpoint call_longjmp"
continue
}
gdb_test "python finishbp = SimpleFinishBreakpoint(gdb.newest_frame())" \
"SimpleFinishBreakpoint init" \
"set finish breakpoint"
gdb_test "break [gdb_get_line_number "after longjmp."]" "Breakpoint.* at .*" \
"set BP after the jump"
gdb_test "continue" "SimpleFinishBreakpoint out of scope.*" \
"check FinishBP out of scope notification"
gdb_test "python print (finishbp.is_valid())" "False.*"\
"ensure that finish bp is invalid afer out of scope notification"
#
# Test FinishBreakpoint in BP condition evaluation
# (finish in dummy frame)
#
clean_restart ${testfile}
gdb_load_shlibs ${lib_sl}
gdb_test "source $python_file" "Python script imported.*" \
"import python scripts"
if ![runto_main] then {
fail "Cannot run to main."
return 0
}
gdb_test "break ${cond_line} if test_1(i,8)" "Breakpoint .* at .*" \
"set a conditional BP"
gdb_test "python TestBreakpoint()" "TestBreakpoint init" \
"set FinishBP in a breakpoint condition"
gdb_test "continue" \
"\"FinishBreakpoint\" cannot be set on a dummy frame.*" \
"don't allow FinishBreakpoint on dummy frames"
gdb_test "print i" "8" "check stopped location"
#
# Test FinishBreakpoint in BP condition evaluation
# (finish in normal frame)
#
clean_restart ${testfile}
gdb_load_shlibs ${lib_sl}
gdb_test "source $python_file" "Python script imported.*" \
"import python scripts"
if ![runto_main] then {
fail "Cannot run to main."
return 0
}
gdb_test "break ${cond_line} if test(i,8)" \
"Breakpoint .* at .*" "set conditional BP"
gdb_test "python TestBreakpoint()" "TestBreakpoint init" "set BP in condition"
gdb_test "continue" \
"test don't stop: 1.*test don't stop: 2.*test stop.*Error in testing breakpoint condition.*The program being debugged stopped while in a function called from GDB.*" \
"stop in condition function"
gdb_test "continue" "Continuing.*" "finish condition evaluation"
gdb_test "continue" "Breakpoint.*" "stop at conditional breakpoint"
gdb_test "print i" "8" "check stopped location"
#
# Test FinishBreakpoint in explicit inferior function call
#
clean_restart ${testfile}
gdb_load_shlibs ${lib_sl}
gdb_test "source $python_file" "Python script imported.*" \
"import python scripts"
if ![runto_main] then {
fail "Cannot run to main."
return 0
}
# return address in dummy frame
gdb_test "python TestExplicitBreakpoint('increase_1')" "Breakpoint.*at.*" \
"prepare TestExplicitBreakpoint"
gdb_test "print increase_1(&i)" \
"\"FinishBreakpoint\" cannot be set on a dummy frame.*" \
"don't allow FinishBreakpoint on dummy frames"
# return address in normal frame
delete_breakpoints
gdb_test "python TestExplicitBreakpoint(\"increase_1\")" "Breakpoint.*at.*" \
"prepare TestExplicitBreakpoint"
gdb_test "print increase(&i)" \
"SimpleFinishBreakpoint init.*SimpleFinishBreakpoint stop.*The program being debugged stopped while in a function called from GDB.*" \
"FinishBP stop at during explicit function call"
#
# Test FinishBreakpoint when inferior exits
#
if ![runto "test_exec_exit"] then {
fail "Cannot run to test_exec_exit."
return 0
}
gdb_test_no_output "set var self_exec = 0" "switch to exit() test"
gdb_test "python SimpleFinishBreakpoint(gdb.newest_frame())" "SimpleFinishBreakpoint init" "set FinishBP after the exit()"
gdb_test "continue" "SimpleFinishBreakpoint out of scope.*" "catch out of scope after exit"
#
# Test FinishBreakpoint when inferior execs
#
if ![runto "test_exec_exit"] then {
fail "Cannot run to test_exec_exit."
return 0
}
gdb_test "python SimpleFinishBreakpoint(gdb.newest_frame())" "SimpleFinishBreakpoint init" "set FinishBP after the exec"
gdb_test "catch exec" "Catchpoint.*\(exec\).*" "catch exec"
gdb_test "continue" "SimpleFinishBreakpoint out of scope.*" "catch out of scope after exec"