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

   1 # Copyright (C) 2011-2012 Free Software Foundation, Inc.
   2 #
   3 # This program is free software; you can redistribute it and/or modify
   4 # it under the terms of the GNU General Public License as published by
   5 # the Free Software Foundation; either version 3 of the License, or
   6 # (at your option) any later version.
   7 #
   8 # This program is distributed in the hope that it will be useful,
   9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 # GNU General Public License for more details.
  12 #
  13 # You should have received a copy of the GNU General Public License
  14 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  15
  16 # This file is part of the GDB testsuite.  It tests the mechanism
  17 # exposing values to Python.
  18
  19 if {[skip_shlib_tests]} {
  20         untested py-finish-breakpoint.exp
  21     return 0
  22 }
  23
  24 load_lib gdb-python.exp
  25
  26 set libfile "py-events-shlib"
  27 set libsrc  $srcdir/$subdir/$libfile.c
  28 set lib_sl  [standard_output_file $libfile-nodebug.so]
  29 set lib_opts ""
  30
  31 standard_testfile
  32 set exec_opts [list debug shlib=$lib_sl]
  33
  34 if [get_compiler_info] {
  35     return -1
  36 }
  37
  38 if { [gdb_compile_shlib $libsrc $lib_sl $lib_opts] != ""
  39      || [gdb_compile $srcdir/$subdir/$srcfile $binfile executable $exec_opts] != ""} {
  40     untested "Could not compile either $libsrc or $srcdir/$subdir/$srcfile."
  41     return -1
  42 }
  43
  44 # Start with a fresh gdb.
  45 clean_restart ${testfile}
  46
  47 set python_file ${srcdir}/${subdir}/${testfile}.py
  48
  49
  50 # Skip all tests if Python scripting is not enabled.
  51 if { [skip_python_tests] } { continue }
  52
  53 #
  54 # Test FinishBreakpoint in normal conditions
  55 #
  56
  57 clean_restart ${testfile}
  58 gdb_load_shlibs ${lib_sl}
  59
  60 if ![runto_main] then {
  61     fail "Cannot run to main."
  62     return 0
  63 }
  64
  65 gdb_test_no_output "set confirm off" "disable confirmation"
  66 gdb_test "source $python_file" "Python script imported.*" \
  67          "import python scripts"
  68 gdb_breakpoint "increase_1"
  69 gdb_test "continue" "Breakpoint .*at.*" "continue to the function to finish"
  70
  71 # set FinishBreakpoint
  72
  73 gdb_test "python finishbp_default = gdb.FinishBreakpoint ()" \
  74          "Temporary breakpoint.*" "set FinishBreakpoint with default frame value"
  75 gdb_test "python finishbp = MyFinishBreakpoint (gdb.parse_and_eval ('a'), gdb.newest_frame ())" \
  76          "Temporary breakpoint.*" "set FinishBreakpoint"
  77 gdb_test "python print finishbp.return_value" "None.*" \
  78          "check return_value at init"
  79
  80 # check normal bp hit
  81
  82 gdb_test "continue" "MyFinishBreakpoint stop with.*return_value is: -5.*#0.*increase.*" \
  83          "check MyFinishBreakpoint hit"
  84 gdb_test "python print finishbp.return_value" "-5.*" "check return_value"
  85
  86 gdb_test "python print finishbp_default.hit_count" "1.*" "check finishBP on default frame has been hit"
  87 gdb_test "python print finishbp.is_valid()" "False.*"\
  88          "ensure that finish bp is invalid afer normal hit"
  89
  90 # check FinishBreakpoint in main no allowed
  91
  92 gdb_test "finish" "main.*" "return to main()"
  93 gdb_test "python MyFinishBreakpoint (None, gdb.selected_frame ())" \
  94          "ValueError: \"FinishBreakpoint\" not meaningful in the outermost frame..*" \
  95          "check FinishBP not allowed in main"
  96
  97 #
  98 # Test FinishBreakpoint with no debug symbol
  99 #
 100
 101 clean_restart ${testfile}
 102 gdb_load_shlibs ${lib_sl}
 103
 104 gdb_test "source $python_file" "Python script imported.*" \
 105          "import python scripts"
 106 set cond_line [gdb_get_line_number "Condition Break."]
 107
 108 if ![runto_main] then {
 109     fail "Cannot run to main."
 110     return 0
 111 }
 112
 113 gdb_test "print do_nothing" "no debug info.*" "ensure that shared lib has no debug info"
 114 gdb_breakpoint "do_nothing" {temporary}
 115 gdb_test "continue" "Temporary breakpoint .*in \\.?do_nothing.*" \
 116          "continue to do_nothing"
 117
 118 gdb_test "python finishBP = SimpleFinishBreakpoint(gdb.newest_frame())" \
 119          "SimpleFinishBreakpoint init" \
 120          "set finish breakpoint"
 121 gdb_test "continue" "SimpleFinishBreakpoint stop.*" "check FinishBreakpoint hit"
 122 gdb_test "python print finishBP.return_value" "None" "check return value without debug symbol"
 123
 124 #
 125 # Test FinishBreakpoint in function returned by longjmp
 126 #
 127
 128 clean_restart ${testfile}
 129 gdb_load_shlibs ${lib_sl}
 130
 131 gdb_test "source $python_file" "Python script imported.*" \
 132          "import python scripts"
 133
 134 if ![runto call_longjmp_1] then {
 135     perror "couldn't run to breakpoint call_longjmp"
 136     continue
 137 }
 138
 139 gdb_test "python finishbp = SimpleFinishBreakpoint(gdb.newest_frame())" \
 140          "SimpleFinishBreakpoint init" \
 141          "set finish breakpoint"
 142 gdb_test "break [gdb_get_line_number "after longjmp."]" "Breakpoint.* at .*" \
 143          "set BP after the jump"
 144 gdb_test "continue" "SimpleFinishBreakpoint out of scope.*" \
 145          "check FinishBP out of scope notification"
 146 gdb_test "python print finishbp.is_valid()" "False.*"\
 147          "ensure that finish bp is invalid afer out of scope notification"
 148
 149 #
 150 # Test FinishBreakpoint in BP condition evaluation
 151 # (finish in dummy frame)
 152 #
 153
 154 clean_restart ${testfile}
 155 gdb_load_shlibs ${lib_sl}
 156
 157 gdb_test "source $python_file" "Python script imported.*" \
 158          "import python scripts"
 159
 160
 161 if ![runto_main] then {
 162     fail "Cannot run to main."
 163     return 0
 164 }
 165
 166 gdb_test "break ${cond_line} if test_1(i,8)" "Breakpoint .* at .*" \
 167          "set a conditional BP"
 168 gdb_test "python TestBreakpoint()" "TestBreakpoint init" \
 169          "set FinishBP in a breakpoint condition"
 170 gdb_test "continue" \
 171          "\"FinishBreakpoint\" cannot be set on a dummy frame.*" \
 172          "don't allow FinishBreakpoint on dummy frames"
 173 gdb_test "print i" "8" "check stopped location"
 174
 175 #
 176 # Test FinishBreakpoint in BP condition evaluation
 177 # (finish in normal frame)
 178 #
 179
 180 clean_restart ${testfile}
 181 gdb_load_shlibs ${lib_sl}
 182
 183 gdb_test "source $python_file" "Python script imported.*" \
 184          "import python scripts"
 185
 186 if ![runto_main] then {
 187     fail "Cannot run to main."
 188     return 0
 189 }
 190
 191 gdb_test "break ${cond_line} if test(i,8)" \
 192          "Breakpoint .* at .*" "set conditional BP"
 193 gdb_test "python TestBreakpoint()" "TestBreakpoint init" "set BP in condition"
 194
 195 gdb_test "continue" \
 196          "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.*" \
 197          "stop in condition function"
 198
 199 gdb_test "continue" "Continuing.*" "finish condition evaluation"
 200 gdb_test "continue" "Breakpoint.*" "stop at conditional breakpoint"
 201 gdb_test "print i" "8" "check stopped location"
 202
 203 #
 204 # Test FinishBreakpoint in explicit inferior function call
 205 #
 206
 207 clean_restart ${testfile}
 208 gdb_load_shlibs ${lib_sl}
 209
 210 gdb_test "source $python_file" "Python script imported.*" \
 211          "import python scripts"
 212
 213 if ![runto_main] then {
 214     fail "Cannot run to main."
 215     return 0
 216 }
 217
 218 # return address in dummy frame
 219
 220 gdb_test "python TestExplicitBreakpoint('increase_1')" "Breakpoint.*at.*" \
 221          "prepare TestExplicitBreakpoint"
 222 gdb_test "print increase_1(&i)" \
 223          "\"FinishBreakpoint\" cannot be set on a dummy frame.*" \
 224          "don't allow FinishBreakpoint on dummy frames"
 225
 226 # return address in normal frame
 227
 228 delete_breakpoints
 229 gdb_test "python TestExplicitBreakpoint(\"increase_1\")" "Breakpoint.*at.*" \
 230          "prepare TestExplicitBreakpoint"
 231 gdb_test "print increase(&i)" \
 232          "SimpleFinishBreakpoint init.*SimpleFinishBreakpoint stop.*The program being debugged stopped while in a function called from GDB.*" \
 233          "FinishBP stop at during explicit function call"
 234
 235
 236 #
 237 # Test FinishBreakpoint when inferior exits
 238 #
 239
 240 if ![runto "test_exec_exit"] then {
 241     fail "Cannot run to test_exec_exit."
 242     return 0
 243 }
 244
 245 gdb_test_no_output "set var self_exec = 0" "switch to exit() test"
 246 gdb_test "python SimpleFinishBreakpoint(gdb.newest_frame())" "SimpleFinishBreakpoint init" "set FinishBP after the exit()"
 247 gdb_test "continue" "SimpleFinishBreakpoint out of scope.*" "catch out of scope after exit"
 248
 249 #
 250 # Test FinishBreakpoint when inferior execs
 251 #
 252
 253 if ![runto "test_exec_exit"] then {
 254     fail "Cannot run to test_exec_exit."
 255     return 0
 256 }
 257
 258 gdb_test "python SimpleFinishBreakpoint(gdb.newest_frame())" "SimpleFinishBreakpoint init" "set FinishBP after the exec"
 259 gdb_test "catch exec" "Catchpoint.*\(exec\).*" "catch exec"
 260 gdb_test "continue" "SimpleFinishBreakpoint out of scope.*" "catch out of scope after exec"