gdb/testsuite/gdb.python/python.exp

   1 # Copyright (C) 2008-2018 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 load_lib gdb-python.exp
  20
  21 standard_testfile python.c python-1.c
  22
  23 if {[build_executable $testfile.exp $testfile \
  24          [list $srcfile $srcfile2] debug] == -1} {
  25     return -1
  26 }
  27
  28 # Start with a fresh gdb.
  29 gdb_exit
  30 gdb_start
  31 gdb_reinitialize_dir $srcdir/$subdir
  32
  33 set remote_source2_py [gdb_remote_download host \
  34                            ${srcdir}/${subdir}/source2.py]
  35
  36 # Do this instead of the skip_python_check.
  37 # We want to do some tests when Python is not present.
  38 gdb_test_multiple "python print (23)" "verify python support" {
  39     -re "not supported.*$gdb_prompt $"  {
  40       unsupported "python support is disabled"
  41
  42       # If Python is not supported, verify that sourcing a python script
  43       # causes an error.
  44       gdb_test "source $remote_source2_py" \
  45           "Error in sourced command file:.*" \
  46           "source source2.py when python disabled"
  47
  48       # Verify multi-line python commands cause an error.
  49       gdb_py_test_multiple "multi-line python command" \
  50           "python" "" \
  51           "print (23)" "" \
  52           "end" "not supported.*"
  53
  54       return -1
  55     }
  56     -re "$gdb_prompt $" {}
  57 }
  58
  59 gdb_py_test_multiple "multi-line python command" \
  60   "python" "" \
  61   "print (23)" "" \
  62   "end" "23"
  63
  64 # Spawn interactive Python help from a multi-line command, thus, after
  65 # a secondary prompt.
  66
  67 with_test_prefix "python interactive help" {
  68     set test "python; help(); end"
  69     gdb_test_multiple "python\nhelp()\nend" $test {
  70         -re ".*help utility.*help> $" {
  71             pass $test
  72
  73             # The "quit" must be seen on the output.  A buggy GDB
  74             # would not display it.
  75             gdb_test "quit" "^quit.*leaving help.*" "quit help"
  76         }
  77     }
  78 }
  79
  80 gdb_py_test_multiple "show python command" \
  81   "define zzq" "Type commands for definition of .* just \"end\"\\.*" \
  82   "python" "" \
  83   "print (23)" "" \
  84   "end" "" \
  85   "end" "" \
  86   "show user zzq" "User command \"zzq\":.*  python.*print \\(23\\).*  end"
  87
  88 gdb_py_test_multiple "indented multi-line python command" \
  89   "python" "" \
  90   "def foo ():" "" \
  91   "  print ('hello, world!')" "" \
  92   "foo ()" "" \
  93   "end" "hello, world!"
  94
  95 gdb_test "source $remote_source2_py" "yes" "source source2.py"
  96
  97 gdb_test "source -s source2.py" "yes" "source -s source2.py"
  98
  99 set remote_source2_symlink_notpy \
 100     [gdb_remote_download host ${srcdir}/${subdir}/source2.py \
 101          [standard_output_file "source2-symlink.notpy"]]
 102 set remote_source2_symlink_py [standard_output_file "source2-symlink.py"]
 103 remote_file host delete $remote_source2_symlink_py
 104 set status [remote_exec host "ln -sf $remote_source2_symlink_notpy $remote_source2_symlink_py"]
 105 set test "source -s source2-symlink.py"
 106 if {[lindex $status 0] == 0} {
 107     gdb_test "source -s $remote_source2_symlink_py" "yes" $test
 108 } else {
 109     unsupported "$test (host does not support symbolic links)"
 110 }
 111
 112 gdb_test "python print (gdb.current_objfile())" "None"
 113 gdb_test "python print (gdb.objfiles())" "\\\[\\\]"
 114
 115 # Test http://bugs.python.org/issue4434 workaround in configure.ac
 116 gdb_test "python import itertools; print ('IMPOR'+'TED')" "IMPORTED" "pythonX.Y/lib-dynload/*.so"
 117
 118 gdb_test_no_output \
 119     "python x = gdb.execute('printf \"%d\", 23', to_string = True)"
 120 gdb_test "python print (x)" "23"
 121
 122 gdb_test "python gdb.execute('echo 2\\necho 3\\\\n\\n')" "23" \
 123     "multi-line execute"
 124
 125 # Test post_event.
 126 gdb_py_test_multiple "post event insertion" \
 127   "python" "" \
 128   "someVal = 0" "" \
 129   "class Foo(object):" "" \
 130   "  def __call__(self):" "" \
 131   "    global someVal" "" \
 132   "    someVal += 1" "" \
 133   "gdb.post_event(Foo())" "" \
 134   "end" ""
 135
 136 gdb_test "python print (someVal)" "1" "test post event execution"
 137 gdb_test "python gdb.post_event(str(1))" "RuntimeError: Posted event is not callable.*" "test non callable class"
 138
 139 # Test (no) pagination of the executed command.
 140 gdb_test "show height" {Number of lines gdb thinks are in a page is unlimited\.}
 141 set lines 10
 142 gdb_test_no_output "set height $lines"
 143
 144 set test "verify pagination beforehand"
 145 gdb_test_multiple "python print (\"\\n\" * $lines)" $test {
 146     -re "--Type <RET>" {
 147         exp_continue
 148     }
 149     -re " for more, q to quit" {
 150         exp_continue
 151     }
 152     -re ", c to continue without paging--$" {
 153         pass $test
 154     }
 155 }
 156 gdb_test "q" "Quit.*Error while executing Python.*" "verify pagination beforehand: q"
 157
 158 gdb_test "python if gdb.execute('python print (\"\\\\n\" * $lines)', to_string=True) == \"\\n\" * [expr $lines + 1]: print (\"yes\")" "yes" "gdb.execute does not page"
 159
 160 set test "verify pagination afterwards"
 161 gdb_test_multiple "python print (\"\\n\" * $lines)" $test {
 162     -re "--Type <RET>" {
 163         exp_continue
 164     }
 165     -re " for more, q to quit" {
 166         exp_continue
 167     }
 168     -re ", c to continue without paging--$" {
 169         pass $test
 170     }
 171 }
 172 gdb_test "q" "Quit.*Error while executing Python.*" "verify pagination afterwards: q"
 173
 174 gdb_test_no_output "set height 0"
 175
 176 gdb_test_no_output "python a = gdb.execute('help', to_string=True)" "collect help from uiout"
 177
 178 gdb_test "python print (a)" ".*aliases -- Aliases of other commands.*" "verify help to uiout"
 179
 180 # Test PR 12212, using InfThread.selected_thread() when no inferior is
 181 # loaded.
 182 gdb_py_test_silent_cmd "python nothread = gdb.selected_thread()" "Attempt to aquire thread with no inferior" 1
 183 gdb_test "python print (nothread == None)" "True" "ensure that no threads are returned"
 184
 185 gdb_py_test_multiple "register atexit function" \
 186     "python" "" \
 187     "import atexit" "" \
 188     "def printit(arg):" "" \
 189     "  print (arg)" "" \
 190     "atexit.register(printit, 'good bye world')" "" \
 191     "end" ""
 192
 193 send_gdb "quit\n"
 194 gdb_expect {
 195     -re "good bye world" {
 196         pass "atexit handling"
 197     }
 198     default {
 199         fail "atexit handling"
 200     }
 201 }
 202
 203 # Start with a fresh gdb.
 204 clean_restart ${testfile}
 205
 206 # The following tests require execution.
 207
 208 if ![runto_main] then {
 209     fail "can't run to main"
 210     return 0
 211 }
 212
 213 set lineno [gdb_get_line_number "Break to end."]
 214 runto $lineno
 215
 216 # Test gdb.decode_line.
 217 gdb_test "python gdb.decode_line(\"main.c:43\")" \
 218     "gdb.error: No source file named main.c.*" "test decode_line no source named main"
 219
 220 gdb_py_test_silent_cmd "python symtab = gdb.decode_line()" "test decode_line current location" 1
 221 gdb_test "python print (len(symtab))" "2" "test decode_line current location"
 222 gdb_test "python print (symtab\[0\])" "None" "test decode_line expression parse"
 223 gdb_test "python print (len(symtab\[1\]))" "1" "test decode_line current location"
 224
 225 if { [is_remote host] } {
 226     set python_c [string_to_regexp "python.c"]
 227 } else {
 228     set python_c [string_to_regexp "gdb.python/python.c"]
 229 }
 230 gdb_test "python print (symtab\[1\]\[0\].symtab)" ".*${python_c}" "test decode_line current location filename"
 231 gdb_test "python print (symtab\[1\]\[0\].line)" "$lineno" "test decode_line current location line number"
 232
 233 gdb_py_test_silent_cmd "python symtab = gdb.decode_line(\"python.c:26 if foo\")" "test decode_line python.c:26" 1
 234 gdb_test "python print (len(symtab))" "2" "test decode_line python.c:26 length"
 235 gdb_test "python print (symtab\[0\])" "if foo" "test decode_line expression parse"
 236 gdb_test "python print (len(symtab\[1\]))" "1" "test decode_line python.c:26 length"
 237 gdb_test "python print (symtab\[1\]\[0\].symtab)" ".*${python_c}" "test decode_line python.c:26 filename"
 238 gdb_test "python print (symtab\[1\]\[0\].line)" "26" "test decode_line python.c:26 line number"
 239
 240 gdb_test "python gdb.decode_line(\"randomfunc\")" \
 241     "gdb.error: Function \"randomfunc\" not defined.*" "test decode_line randomfunc"
 242 gdb_py_test_silent_cmd "python symtab = gdb.decode_line(\"func1\")" "test decode_line func1()" 1
 243 gdb_test "python print (len(symtab))" "2" "test decode_line func1 length"
 244 gdb_test "python print (len(symtab\[1\]))" "1" "test decode_line func1 length"
 245
 246 if { [is_remote host] } {
 247     set python_1_c [string_to_regexp "python-1.c"]
 248 } else {
 249     set python_1_c [string_to_regexp "gdb.python/python-1.c"]
 250 }
 251 gdb_test "python print (symtab\[1\]\[0\].symtab)" ".*${python_1_c}" "test decode_line func1 filename"
 252
 253 # Set a default value for func1_lineno in case we fail to fetch the line number
 254 # below.
 255 set func1_lineno "noline"
 256
 257 # Fetch the line GDB thinks func1 starts at.  This may change depending
 258 # on the architecture and on how GDB handles the prologue of the function.
 259 gdb_test_multiple "info line func1" "info line func1" {
 260     -re "Line ($decimal) of .* starts at address $hex <func1> and ends at $hex <func1\\+$decimal>\.\[\r\n\]+$gdb_prompt $" {
 261         # Fetch the line number.
 262         set func1_lineno $expect_out(1,string)
 263     }
 264 }
 265
 266 gdb_test "python print (symtab\[1\]\[0\].line)" "$func1_lineno" "test decode_line func1 line number"
 267 gdb_py_test_silent_cmd {python symtab = gdb.decode_line ("func1,func2")} \
 268     "test decode_line func1,func2" 1
 269 gdb_test {python print (symtab[0])} ",func2" "stop at comma in linespec"
 270
 271 gdb_py_test_silent_cmd "python symtab = gdb.decode_line(\"*0\")" "Test decode_line *0" 1
 272 gdb_test "python print (len(symtab))" "2" "test decode_line *0 result length"
 273 gdb_test "python print (symtab\[0\])" "None" "test decode_line *0 unparsed"
 274 gdb_test "python print (len(symtab\[1\]))" "1" "test decode_line *0 locations length"
 275 gdb_test "python print (symtab\[1\]\[0\].symtab)" "None" "test decode_line *0 filename"
 276 gdb_test "python print (symtab\[1\]\[0\].pc)" "0" "test decode_line *0 pc"
 277
 278 # gdb.write
 279 gdb_test "python print (sys.stderr)" ".*gdb.GdbOutputErrorFile (instance|object) at.*" "test stderr location"
 280 gdb_test "python print (sys.stdout)" ".*gdb.GdbOutputFile (instance|object) at.*" "test stdout location"
 281 gdb_test "python gdb.write(\"Foo\\n\")" "Foo" "test default write"
 282 gdb_test "python gdb.write(\"Error stream\\n\", stream=gdb.STDERR)" "Error stream" "test stderr write"
 283 gdb_test "python gdb.write(\"Normal stream\\n\", stream=gdb.STDOUT)" "Normal stream" "test stdout write"
 284 gdb_test "python gdb.write(\"Log stream\\n\", stream=gdb.STDLOG)" "Log stream" "test stdlog write"
 285
 286 # Turn on full stack printing for subsequent tests.
 287 gdb_py_test_silent_cmd "set python print-stack full" \
 288     "Set print-stack full for prompt tests" 1
 289
 290 # Test prompt substituion
 291
 292 gdb_py_test_multiple "prompt substitution" \
 293   "python" "" \
 294   "someCounter = 0" "" \
 295   "def prompt(current):" "" \
 296   "   global someCounter" "" \
 297   "   if (current == \"testfake \"):" "" \
 298   "      return None" "" \
 299   "   someCounter = someCounter + 1" "" \
 300   "   return \"py prompt \" + str (someCounter) + \" \"" "" \
 301   "end" ""
 302
 303 gdb_py_test_multiple "prompt substitution readline" \
 304   "python" "" \
 305   "pCounter = 0" "" \
 306   "def program_prompt(current):" "" \
 307   "   global pCounter" "" \
 308   "   if (current == \">\"):" "" \
 309   "      pCounter = pCounter + 1" "" \
 310   "      return \"python line \" + str (pCounter) + \": \"" "" \
 311   "   return None" "" \
 312   "end" ""
 313
 314 set newprompt "py prompt 1"
 315 set newprompt2 "py prompt 2"
 316 set testfake "testfake"
 317
 318 gdb_test_multiple "python gdb.prompt_hook = prompt" "set the hook" {
 319     -re "\[\r\n\]$newprompt $" {
 320         pass "set hook"
 321     }
 322 }
 323
 324 gdb_test_multiple "set prompt testfake " "set testfake prompt in GDB" {
 325     -re "\[\r\n\]$testfake $" {
 326         pass "set prompt testfake"
 327     }
 328 }
 329
 330 gdb_test_multiple "show prompt" "show testfake prompt" {
 331     -re "Gdb's prompt is \"$testfake \"..* $" {
 332         pass "show prompt shows guarded prompt"
 333     }
 334 }
 335
 336 gdb_test_multiple "set prompt blah " "set blah in GDB" {
 337     -re "\[\r\n\]$newprompt2 $" {
 338         pass "set prompt blah overriden"
 339     }
 340 }
 341
 342 gdb_test_multiple "python gdb.prompt_hook = None" "delete hook" {
 343     -re "\[\r\n\]$newprompt2 $" {
 344         pass "delete old hook"
 345     }
 346 }
 347
 348 gdb_test_multiple "set prompt $gdb_prompt " "set default prompt" {
 349     -re "\[\r\n\]$gdb_prompt $" {
 350         pass "set default prompt"
 351     }
 352 }
 353
 354 set working_dir ""
 355 gdb_test_multiple "pwd" "pwd" {
 356     -re "Working directory (.*)\\.\[\r\n\]+$gdb_prompt $" {
 357         set working_dir $expect_out(1,string)
 358     }
 359 }
 360
 361 gdb_test_multiple "python gdb.prompt_hook = program_prompt" "set the hook" {
 362     -re "\[\r\n\]$gdb_prompt $" {
 363         pass "set programming hook"
 364     }
 365 }
 366
 367 gdb_test_multiple "python" "test we ignore substituion for seconday prompts" {
 368     -re "\r\n>$" {
 369         pass "readline secondary are not substituted"
 370     }
 371 }
 372
 373 gdb_test_multiple "end" "end programming" {
 374     -re "\[\r\n\]$gdb_prompt $" {
 375         pass "end programming"
 376     }
 377 }
 378
 379 gdb_py_test_multiple "prompt substitution readline" \
 380   "python" "" \
 381   "import gdb.command.prompt" "" \
 382   "end" ""
 383
 384 gdb_test_multiple "set extended-prompt one two three " \
 385     "set basic extended prompt" {
 386     -re "\[\r\n\]one two three $" {
 387         pass "set basic extended prompt"
 388     }
 389 }
 390
 391 gdb_test_multiple "set extended-prompt \\w " \
 392     "set extended prompt working directory" {
 393     -re "\[\r\n\][string_to_regexp $working_dir] $" {
 394         pass "set extended prompt working directory"
 395     }
 396 }
 397
 398 gdb_test_multiple "set extended-prompt some param \\p{python print-stack} " \
 399     "set extended prompt parameter" {
 400     -re "\[\r\n\]some param full $" {
 401         pass "set extended prompt parameter"
 402     }
 403 }
 404
 405 # Start with a fresh gdb.
 406 clean_restart ${testfile}
 407
 408 # The following tests require execution.
 409
 410 if ![runto_main] then {
 411     fail "can't run to main"
 412     return 0
 413 }
 414
 415 # print-stack settings
 416 gdb_test "show python print-stack" \
 417     "The mode of Python stack printing on error is \"message\".*" \
 418     "Test print-stack show setting. Default is message."
 419 gdb_py_test_silent_cmd "set python print-stack full" \
 420     "Test print-stack set setting to full" 1
 421 gdb_test "show python print-stack" \
 422     "The mode of Python stack printing on error is \"full\".*" \
 423     "Test print-stack show setting to full"
 424 gdb_py_test_silent_cmd "set python print-stack none" \
 425     "Test print-stack set setting to none" 1
 426 gdb_test "show python print-stack" \
 427     "The mode of Python stack printing on error is \"none\".*" \
 428     "test print-stack show setting to none"
 429
 430 gdb_py_test_silent_cmd "set python print-stack message" \
 431     "Test print-stack set setting to message" 1
 432
 433 gdb_py_test_multiple "prompt substitution readline" \
 434   "python" "" \
 435   "pCounter = 0" "" \
 436   "def error_prompt(current):" "" \
 437   "   raise RuntimeError(\"Python exception called\")" "" \
 438   "end" ""
 439
 440 gdb_test_multiple "python gdb.prompt_hook = error_prompt" "set the hook" {
 441     -re "Python Exception (exceptions.RuntimeError|<(type 'exceptions.|class ')RuntimeError'>) Python exception called.*" {
 442         pass "set hook"
 443     }
 444 }
 445
 446 gdb_py_test_silent_cmd "python gdb.prompt_hook = None" \
 447     "set the hook to default" 1
 448
 449 gdb_py_test_silent_cmd "set python print-stack full" \
 450     "set print-stack full for prompt error test" 1
 451
 452 gdb_test_multiple "python gdb.prompt_hook = error_prompt" "set the hook" {
 453     -re "Traceback.*File.*line.*RuntimeError.*Python exception called.*" {
 454         pass "set hook"
 455     }
 456 }
 457
 458 gdb_py_test_silent_cmd "python gdb.prompt_hook = None" \
 459     "set the hook to default" 1
 460
 461 # Start with a fresh gdb.
 462 clean_restart ${testfile}
 463
 464 # The following tests require execution.
 465
 466 if ![runto_main] then {
 467     fail "can't run to main"
 468     return 0
 469 }
 470
 471 runto [gdb_get_line_number "Break at func2 call site."]
 472
 473 gdb_py_test_silent_cmd "python line = gdb.selected_frame().find_sal().line" "Get line number of func2 call site" 1
 474 gdb_test "python print (gdb.find_pc_line(gdb.selected_frame().pc()).line == line)" "True" "test find_pc_line at func2 call site"
 475
 476 gdb_py_test_silent_cmd "step" "Step into func2" 1
 477 gdb_py_test_silent_cmd "up" "Step out of func2" 1
 478
 479 gdb_test "python print (gdb.find_pc_line(gdb.selected_frame().pc()).line > line)" "True" "test find_pc_line with resume address"
 480
 481 gdb_test_no_output "set variable \$cvar1 = 23" "set convenience variable"
 482 gdb_test "python print(gdb.convenience_variable('cvar1'))" "23"
 483 gdb_test "python print(gdb.convenience_variable('cvar2'))" "None"
 484 gdb_test_no_output "python gdb.set_convenience_variable('cvar1', 89)" \
 485     "change convenience variable from python"
 486 gdb_test "python print(gdb.convenience_variable('cvar1'))" "89" \
 487     "print new value of convenience variable from python"
 488 gdb_test "print \$cvar1" " = 89" \
 489     "print new value of convenience variable from CLI"
 490 gdb_test_no_output "python gdb.set_convenience_variable('cvar3', -5)" \
 491     "make convenience variable from python"
 492 gdb_test "python print(gdb.convenience_variable('cvar3'))" "-5" \
 493     "print value of new convenience variable from python"
 494 gdb_test_no_output "python gdb.set_convenience_variable('cvar3', None)" \
 495     "reset convenience variable from python"
 496 gdb_test "python print(gdb.convenience_variable('cvar3'))" "None" \
 497     "print reset convenience variable from python"
 498 gdb_test "print \$cvar3" "= void" \
 499     "print reset convenience variable from CLI"