gdb/testsuite/gdb.python/py-mi.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 Python-based
  17 # pretty-printing for MI.
  18
  19 load_lib mi-support.exp
  20 set MIFLAGS "-i=mi2"
  21
  22 gdb_exit
  23 if [mi_gdb_start] {
  24     continue
  25 }
  26
  27 standard_testfile py-prettyprint.c
  28 set pyfile py-prettyprint.py
  29 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DMI}] != "" } {
  30     untested "failed to compile"
  31     return -1
  32 }
  33
  34 mi_delete_breakpoints
  35 mi_gdb_reinitialize_dir $srcdir/$subdir
  36 mi_gdb_load ${binfile}
  37
  38 if {[lsearch -exact [mi_get_features] python] < 0} {
  39     unsupported "python support is disabled"
  40     return -1
  41 }
  42
  43 mi_runto main
  44
  45 set remote_python_file [gdb_remote_download host ${srcdir}/${subdir}/${pyfile}]
  46
  47 mi_gdb_test "source ${remote_python_file}" "load python file"
  48
  49 mi_continue_to_line [gdb_get_line_number {MI breakpoint here} ${srcfile}] \
  50   "step to breakpoint"
  51
  52 mi_create_floating_varobj container c \
  53   "create container varobj, no pretty-printing"
  54
  55 mi_list_varobj_children container {
  56   { container.name name 1 string }
  57   { container.len len 0 int }
  58   { container.elements elements 1 "int ." }
  59 } "examine container children=0, no pretty-printing"
  60
  61 mi_delete_varobj container "delete varobj"
  62
  63 mi_create_floating_varobj nscont nstype \
  64   "create nscont varobj, no pretty-printing"
  65
  66 mi_list_varobj_children nscont {
  67   { nscont.len len 0 int }
  68   { nscont.elements elements 1 "int ." }
  69 } "examine nscont children=0, no pretty-printing"
  70
  71 mi_delete_varobj nscont "delete varobj"
  72
  73 mi_gdb_test "-enable-pretty-printing" ""
  74
  75 mi_create_varobj_checked string string_1 \
  76     "struct string_repr" \
  77     "create string_1 varobj"
  78
  79 mi_create_varobj_checked lstring estring \
  80     "struct lazystring" \
  81     "create estring varobj"
  82
  83 mi_gdb_test "-data-evaluate-expression \"string_1 = string_2\"" ".*" \
  84     "assign string_1 from string_2"
  85
  86 mi_gdb_test "-var-update string" \
  87     "\\^done,changelist=\\\[{name=\"string\",in_scope=\"true\",type_changed=\"false\",dynamic=\"1\",has_more=\"0\"}\\\]" \
  88     "update string varobj after assignment"
  89
  90 # The "elements" field of "c" is still empty, so the attribute
  91 # "has_more" is expected to be zero.
  92 mi_create_dynamic_varobj container c 0 \
  93   "create container varobj"
  94
  95 mi_list_varobj_children container {
  96 } "examine container children=0"
  97
  98 mi_next "next over update 1"
  99
 100 mi_varobj_update_dynamic container "varobj update 1" {
 101     type_changed false new_num_children 1 dynamic 1 has_more 0
 102 } {
 103 } {
 104     { name {container.\[0\]} exp {\[0\]} numchild 0 type int }
 105 }
 106
 107 mi_next "next over update 2"
 108
 109 mi_varobj_update_dynamic container "varobj update 2" {
 110     type_changed false new_num_children 2 dynamic 1 has_more 0
 111 } {
 112 } {
 113     { name {container.\[1\]} exp {\[1\]} numchild 0 type int }
 114 }
 115
 116 mi_gdb_test "-var-set-visualizer container None" \
 117   "\\^done" \
 118   "clear visualizer"
 119
 120 mi_gdb_test "-var-update container" \
 121   "\\^done,changelist=\\\[\\\]" \
 122   "varobj update after clearing"
 123
 124 mi_gdb_test "-var-set-visualizer container gdb.default_visualizer" \
 125   "\\^done" \
 126   "choose default visualizer"
 127
 128 mi_varobj_update_dynamic container "varobj update after choosing default" {
 129     type_changed false new_num_children 2 dynamic 1 has_more 0
 130 } {
 131 } {
 132     { name {container.\[0\]} exp {\[0\]} numchild 0 type int }
 133     { name {container.\[1\]} exp {\[1\]} numchild 0 type int }
 134 }
 135
 136 mi_gdb_test "-var-set-visualizer container ContainerPrinter" \
 137   "\\^done" \
 138   "choose visualizer using expression"
 139
 140 mi_varobj_update_dynamic container \
 141   "varobj update after choosing via expression" {
 142       type_changed false new_num_children 2 dynamic 1 has_more 0
 143   } {
 144   } {
 145       { name {container.\[0\]} exp {\[0\]} numchild 0 type int }
 146       { name {container.\[1\]} exp {\[1\]} numchild 0 type int }
 147   }
 148
 149 mi_list_varobj_children_range container 1 2 2 {
 150     { {container.\[1\]} {\[1\]} 0 int }
 151 } "list varobj children after selecting child range"
 152
 153 mi_list_varobj_children_range container -1 -1 2 {
 154     { {container.\[0\]} {\[0\]} 0 int }
 155     { {container.\[1\]} {\[1\]} 0 int }
 156 } "list varobj children after resetting child range"
 157
 158 mi_next "next over update 3"
 159
 160 mi_gdb_test "-var-set-update-range container 0 1" \
 161   "\\^done" \
 162   "set update range"
 163
 164 # This should truncate the list.
 165 mi_list_varobj_children container {
 166     { {container.\[0\]} {\[0\]} 0 int }
 167 } "list children after setting update range"
 168
 169 # This should return just the items in [1,2).
 170 mi_list_varobj_children_range container 1 2 2 {
 171     { {container.\[1\]} {\[1\]} 0 int }
 172 } "list selected children after setting range"
 173
 174 # This should not be affected by the previous list-children request.
 175 mi_list_varobj_children container {
 176     { {container.\[0\]} {\[0\]} 0 int }
 177 } "list children after listing selected range"
 178
 179 mi_next "next over update 4"
 180
 181 # This should only show the first child, because the update range has
 182 # been set.
 183 mi_varobj_update_dynamic container \
 184   "update after next with restricted range" {
 185       type_changed false new_num_children 1 dynamic 1 has_more 1
 186   } {
 187       { name {container.\[0\]} in_scope true type_changed false has_more 0 }
 188   } {
 189   }
 190
 191 mi_gdb_test "-var-set-update-range container 3 4" \
 192   "\\^done" \
 193   "set update range with non-zero start"
 194
 195 # Elements were updated but should not be reported.
 196 mi_varobj_update_dynamic container \
 197   "update varobj with change outside selected range" {
 198       type_changed false new_num_children 3 dynamic 1 has_more 0
 199   } {
 200   } {
 201   }
 202
 203 mi_next "next over update 5"
 204
 205 # Regression test: examine an object that has no children, then update
 206 # it to ensure that we don't print the children.
 207 mi_create_dynamic_varobj container2 c2 0 \
 208   "create second container varobj"
 209
 210 mi_gdb_test "-var-update container2" \
 211   "\\^done,changelist=.." \
 212   "update varobj, no children requested"
 213
 214 mi_next "next over update 6"
 215
 216 # Now container2 has an element -- and an update should mention that
 217 # it has_more.  But, because we did not request children, we still
 218 # should not actually see them.
 219 mi_varobj_update_dynamic container2 \
 220     "update varobj 2, no children requested" {
 221         type_changed false dynamic 1 has_more 1
 222     } {} {}
 223
 224 mi_continue_to_line \
 225     [gdb_get_line_number {MI outer breakpoint here} ${srcfile}] \
 226     "step to outer breakpoint"
 227
 228 mi_create_dynamic_varobj outer outer 1 \
 229   "create outer varobj"
 230
 231 mi_list_varobj_children outer {
 232   { outer.s s 2 "struct substruct" }
 233   { outer.x x 0 "int" }
 234 } "list children of outer"
 235
 236 mi_list_varobj_children outer.s {
 237   { outer.s.a a 0 int }
 238   { outer.s.b b 0 int }
 239 } "list children of outer.s"
 240
 241 mi_next "next over outer update"
 242
 243 mi_gdb_test "-var-update outer" \
 244   ".done,changelist=.{name=\"outer.s.a\",in_scope=\"true\",type_changed=\"false\",has_more=\"0\"}." \
 245   "update after updating element of outer"
 246
 247 mi_continue_to_line \
 248     [gdb_get_line_number {Another MI breakpoint} ${srcfile}] \
 249     "step to second breakpoint"
 250
 251 mi_varobj_update_with_type_change container int 0 "update after type change"
 252
 253
 254 mi_continue_to_line \
 255     [gdb_get_line_number {break to inspect struct and union} ${srcfile}] \
 256     "step to outer breakpoint"
 257
 258 mi_create_dynamic_varobj nscont nstype 1 \
 259   "create nstype varobj"
 260
 261 mi_list_varobj_children nscont {
 262     { {nscont.\[0\]} {\[0\]} 0 int }
 263     { {nscont.\[1\]} {\[1\]} 0 int }
 264 } "list children after setting update range"
 265
 266 mi_gdb_test "-var-set-visualizer nscont None" \
 267   "\\^done" \
 268   "clear visualizer"
 269
 270 mi_gdb_test "-var-update nscont" \
 271   "\\^done,changelist=\\\[\\\]" \
 272   "varobj update after clearing"
 273
 274 mi_gdb_test "-var-set-visualizer nscont gdb.default_visualizer" \
 275   "\\^done" \
 276   "choose default visualizer"
 277
 278 mi_gdb_test "python exception_flag = True" ""
 279
 280 mi_create_dynamic_varobj nstype2 nstype2 1 \
 281   "create nstype2 varobj"
 282
 283 mi_list_varobj_children nstype2 {
 284     { {nstype2.<error at 0>} {<error at 0>} 6 {char \[6\]} }
 285 } "list children after setting exception flag"
 286
 287 mi_create_varobj me me \
 288   "create me varobj"
 289
 290 mi_gdb_test "-var-evaluate-expression me" \
 291         "\\^done,value=\"<error reading variable: Cannot access memory.>.*\"" \
 292         "evaluate me varobj"
 293
 294 # Regression test for python/14836.
 295 mi_create_dynamic_varobj children_as_list children_as_list 1 \
 296     "printer whose children are returned as a list"
 297
 298 # Regression test for bug 14741.
 299 mi_continue_to_line \
 300     [gdb_get_line_number {breakpoint bug 14741} ${srcfile}] \
 301     "step to breakpoint for bug 14741"
 302
 303 mi_create_dynamic_varobj c c 1 \
 304   "create varobj for c"
 305
 306 mi_gdb_test "-var-set-visualizer c ArrayPrinter" \
 307   "\\^done" \
 308   "choose array visualizer for c"
 309
 310 mi_list_varobj_children c {
 311     { {c.\[0\]} {\[0\]} 0 int }
 312 } "list children of c"
 313
 314 mi_next "next over change of array element"
 315
 316 mi_gdb_test "-var-update c" \
 317     "\\^done,changelist=\\\[{name=\"c.\\\[0\\\]\",in_scope=\"true\",type_changed=\"false\",has_more=\"0\"}\\\]" \
 318     "update varobj after element change"
 319
 320 # C++ MI tests
 321 gdb_exit
 322 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}-cxx" \
 323            executable {debug c++ additional_flags=-DMI}] != "" } {
 324     untested "failed to compile in C++ mode"
 325     return -1
 326 }
 327
 328 if [mi_gdb_start] {
 329     continue
 330 }
 331 mi_delete_breakpoints
 332 mi_gdb_reinitialize_dir $srcdir/$subdir
 333 mi_gdb_load ${binfile}-cxx
 334
 335 if {[lsearch -exact [mi_get_features] python] < 0} {
 336     unsupported "python support is disabled"
 337     return -1
 338 }
 339
 340 mi_runto main
 341 mi_continue_to_line \
 342     [gdb_get_line_number {break to inspect struct and union} ${srcfile}] \
 343     "step to breakpoint"
 344
 345 # Test python/12531.  Install visualizer on a cplus_fake_child.
 346 mi_create_varobj fake fake \
 347   "create fake varobj"
 348
 349 mi_list_varobj_children fake {
 350     { fake.private private 1 }
 351 } "list children of fake"
 352
 353 mi_list_varobj_children fake.private {
 354     { fake.private.sname sname 0 int }
 355 } "list children fake.private"
 356
 357 mi_gdb_test "-var-set-visualizer fake.private gdb.default_visualizer" \
 358     "\\^done" "Install visualizer on a cplus_fake_child"