gdb/testsuite/gdb.btrace/function_call_history.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2 #
   3 # Copyright 2013-2016 Free Software Foundation, Inc.
   4 #
   5 # Contributed by Intel Corp. <christian.himpel@intel.com>
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 # check for btrace support
  21 if { [skip_btrace_tests] } { return -1 }
  22
  23 # start inferior
  24 standard_testfile
  25 if [prepare_for_testing function_call_history.exp $testfile {} {debug}] {
  26     return -1
  27 }
  28 if ![runto_main] {
  29     return -1
  30 }
  31
  32 # start btrace
  33 gdb_test_no_output "record btrace"
  34
  35 # set bp after increment loop and continue
  36 set bp_location [gdb_get_line_number "bp.1" $testfile.c]
  37 gdb_breakpoint $bp_location
  38 gdb_continue_to_breakpoint "cont to $bp_location" ".*$testfile.c:$bp_location.*"
  39
  40 proc rec_fun_all {} {
  41   gdb_test "record function-call-history 1" [multi_line \
  42     "1\tmain" \
  43     "2\tinc" \
  44     "3\tmain" \
  45     "4\tinc" \
  46     "5\tmain" \
  47     "6\tinc" \
  48     "7\tmain" \
  49     "8\tinc" \
  50     "9\tmain" \
  51     "10\tinc" \
  52     "11\tmain" \
  53     "12\tinc" \
  54     "13\tmain" \
  55     "14\tinc" \
  56     "15\tmain" \
  57     "16\tinc" \
  58     "17\tmain" \
  59     "18\tinc" \
  60     "19\tmain" \
  61     "20\tinc" \
  62     "21\tmain"]
  63 }
  64
  65 # show function call history with unlimited size, we expect to see all 21 entries
  66 gdb_test_no_output "set record function-call-history-size 0"
  67 with_test_prefix "size unlimited" rec_fun_all
  68
  69 # show function call history with size of 21, we expect to see all 21 entries
  70 gdb_test_no_output "set record function-call-history-size 21"
  71 with_test_prefix "size 21" rec_fun_all
  72
  73 # show first 15 entries
  74 gdb_test_no_output "set record function-call-history-size 15"
  75 gdb_test "record function-call-history 1" [multi_line \
  76   "1\tmain" \
  77   "2\tinc" \
  78   "3\tmain" \
  79   "4\tinc" \
  80   "5\tmain" \
  81   "6\tinc" \
  82   "7\tmain" \
  83   "8\tinc" \
  84   "9\tmain" \
  85   "10\tinc" \
  86   "11\tmain" \
  87   "12\tinc" \
  88   "13\tmain" \
  89   "14\tinc" \
  90   "15\tmain"] "forward - 1"
  91
  92 # show last 6 entries
  93 gdb_test "record function-call-history +" [multi_line \
  94   "16\tinc" \
  95   "17\tmain" \
  96   "18\tinc" \
  97   "19\tmain" \
  98   "20\tinc" \
  99   "21\tmain"] "forward - 2"
 100
 101 # moving further should not work
 102 gdb_test "record function-call-history +" "At the end of the branch trace record\\." "forward - 3"
 103
 104 # make sure we cannot move any further a second time
 105 gdb_test "record function-call-history +" "At the end of the branch trace record\\." "forward - 4"
 106
 107 # moving back showing the latest 15 function calls
 108 gdb_test "record function-call-history -" [multi_line \
 109   "7\tmain" \
 110   "8\tinc" \
 111   "9\tmain" \
 112   "10\tinc" \
 113   "11\tmain" \
 114   "12\tinc" \
 115   "13\tmain" \
 116   "14\tinc" \
 117   "15\tmain" \
 118   "16\tinc" \
 119   "17\tmain" \
 120   "18\tinc" \
 121   "19\tmain" \
 122   "20\tinc" \
 123   "21\tmain"] "backward - 1"
 124
 125 # moving further back shows the 6 first function calls
 126 gdb_test "record function-call-history -" [multi_line \
 127   "1\tmain" \
 128   "2\tinc" \
 129   "3\tmain" \
 130   "4\tinc" \
 131   "5\tmain" \
 132   "6\tinc"] "backward - 2"
 133
 134 # moving further back shouldn't work
 135 gdb_test "record function-call-history -" "At the start of the branch trace record\\." "backward - 3"
 136
 137 # make sure we cannot move any further back
 138 gdb_test "record function-call-history -" "At the start of the branch trace record\\." "backward - 4"
 139
 140 # don't mess around with path names
 141 gdb_test_no_output "set filename-display basename"
 142
 143 # moving forward again, but this time with file and line number, expected to see the first 15 entries
 144 gdb_test "record function-call-history /l +" [multi_line \
 145   "\[0-9\]*\tmain\tat $srcfile:40,41" \
 146   "\[0-9\]*\tinc\tat $srcfile:22,24" \
 147   "\[0-9\]*\tmain\tat $srcfile:40,41" \
 148   "\[0-9\]*\tinc\tat $srcfile:22,24" \
 149   "\[0-9\]*\tmain\tat $srcfile:40,41" \
 150   "\[0-9\]*\tinc\tat $srcfile:22,24" \
 151   "\[0-9\]*\tmain\tat $srcfile:40,41" \
 152   "\[0-9\]*\tinc\tat $srcfile:22,24" \
 153   "\[0-9\]*\tmain\tat $srcfile:40,41" \
 154   "\[0-9\]*\tinc\tat $srcfile:22,24" \
 155   "\[0-9\]*\tmain\tat $srcfile:40,41" \
 156   "\[0-9\]*\tinc\tat $srcfile:22,24" \
 157   "\[0-9\]*\tmain\tat $srcfile:40,41" \
 158   "\[0-9\]*\tinc\tat $srcfile:22,24" \
 159   "\[0-9\]*\tmain\tat $srcfile:40,41" \
 160   ] "forward /l - 1"
 161
 162 # moving forward and expect to see the latest 6 entries
 163 gdb_test "record function-call-history /l +" [multi_line \
 164   "\[0-9\]*\tinc\tat $srcfile:22,24" \
 165   "\[0-9\]*\tmain\tat $srcfile:40,41" \
 166   "\[0-9\]*\tinc\tat $srcfile:22,24" \
 167   "\[0-9\]*\tmain\tat $srcfile:40,41" \
 168   "\[0-9\]*\tinc\tat $srcfile:22,24" \
 169   "\[0-9\]*\tmain\tat $srcfile:40,43" \
 170   ] "forward /l - 2"
 171
 172 # moving further forward shouldn't work
 173 gdb_test "record function-call-history /l +" "At the end of the branch trace record\\." "forward /l - 3"
 174 gdb_test "record function-call-history /l" "At the end of the branch trace record\\." "forward /l - 4"
 175
 176 set expected_range [multi_line \
 177   "4\tinc" \
 178   "5\tmain" \
 179   "6\tinc" \
 180   "7\tmain" \
 181   "8\tinc" \
 182   "9\tmain" \
 183   "10\tinc"]
 184
 185 # show functions in instruction range
 186 gdb_test "record function-call-history 4,10" $expected_range
 187 gdb_test "record function-call-history 4,+7" $expected_range
 188 gdb_test "record function-call-history 10,-7" $expected_range
 189 gdb_test "record function-call-history 4,4" "4\tinc\r"
 190
 191 # set bp after fib recursion and continue
 192 set bp_location [gdb_get_line_number "bp.2" $testfile.c]
 193 gdb_breakpoint $bp_location
 194 gdb_continue_to_breakpoint "cont to $bp_location" ".*$testfile.c:$bp_location.*"
 195
 196 # at this point we expect to have main, fib, ..., fib, main, where fib occurs 9 times,
 197 # so we limit the output to only show the latest 11 function calls
 198 gdb_test_no_output "set record function-call-history-size 11"
 199 gdb_test "record function-call-history" [multi_line \
 200   "21\tmain" \
 201   "22\tfib" \
 202   "23\tfib" \
 203   "24\tfib" \
 204   "25\tfib" \
 205   "26\tfib" \
 206   "27\tfib" \
 207   "28\tfib" \
 208   "29\tfib" \
 209   "30\tfib" \
 210   "31\tmain"] "recursive"
 211
 212 # show indented function call history for fib
 213 gdb_test "record function-call-history /c 21, +11" [multi_line \
 214   "21\tmain" \
 215   "22\t  fib" \
 216   "23\t    fib" \
 217   "24\t  fib" \
 218   "25\t    fib" \
 219   "26\t      fib" \
 220   "27\t    fib" \
 221   "28\t      fib" \
 222   "29\t    fib" \
 223   "30\t  fib" \
 224   "31\tmain" \
 225   ] "indented"
 226
 227 # make sure we can handle incomplete trace with respect to indentation
 228 if ![runto_main] {
 229     return -1
 230 }
 231 # navigate to the fib in line 24 above
 232 gdb_breakpoint fib
 233 gdb_continue_to_breakpoint "cont to fib.1"
 234 gdb_continue_to_breakpoint "cont to fib.2"
 235 gdb_continue_to_breakpoint "cont to fib.3"
 236 gdb_continue_to_breakpoint "cont to fib.4"
 237
 238 # start tracing
 239 gdb_test_no_output "record btrace"
 240
 241 # continue until line 30 above
 242 delete_breakpoints
 243 set bp_location [gdb_get_line_number "bp.2" $testfile.c]
 244 gdb_breakpoint $bp_location
 245 gdb_continue_to_breakpoint "cont to bp.2" ".*$testfile.c:$bp_location\r\n.*"
 246
 247 # let's look at the trace. we expect to see the tail of the above listing.
 248 gdb_test "record function-call-history /c" [multi_line \
 249   "1\t      fib" \
 250   "2\t    fib" \
 251   "3\t      fib" \
 252   "4\t    fib" \
 253   "5\t  fib" \
 254   "6\tmain" \
 255   ] "indented tail"