gdb/testsuite/gdb.btrace/function_call_history.exp

   1 # This testcase is part of GDB, the GNU debugger.
   2 #
   3 # Copyright 2013-2014 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 0" [join [list \
  42     "0\tmain" \
  43     "1\tinc" \
  44     "2\tmain" \
  45     "3\tinc" \
  46     "4\tmain" \
  47     "5\tinc" \
  48     "6\tmain" \
  49     "7\tinc" \
  50     "8\tmain" \
  51     "9\tinc" \
  52     "10\tmain" \
  53     "11\tinc" \
  54     "12\tmain" \
  55     "13\tinc" \
  56     "14\tmain" \
  57     "15\tinc" \
  58     "16\tmain" \
  59     "17\tinc" \
  60     "18\tmain" \
  61     "19\tinc" \
  62     "20\tmain"] "\r\n"]
  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 0" [join [list \
  76   "0\tmain" \
  77   "1\tinc" \
  78   "2\tmain" \
  79   "3\tinc" \
  80   "4\tmain" \
  81   "5\tinc" \
  82   "6\tmain" \
  83   "7\tinc" \
  84   "8\tmain" \
  85   "9\tinc" \
  86   "10\tmain" \
  87   "11\tinc" \
  88   "12\tmain" \
  89   "13\tinc" \
  90   "14\tmain"] "\r\n"] "forward - 1"
  91
  92 # show last 6 entries
  93 gdb_test "record function-call-history +" [join [list \
  94   "15\tinc" \
  95   "16\tmain" \
  96   "17\tinc" \
  97   "18\tmain" \
  98   "19\tinc" \
  99   "20\tmain"] "\r\n"] "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 -" [join [list \
 109   "6\tmain" \
 110   "7\tinc" \
 111   "8\tmain" \
 112   "9\tinc" \
 113   "10\tmain" \
 114   "11\tinc" \
 115   "12\tmain" \
 116   "13\tinc" \
 117   "14\tmain" \
 118   "15\tinc" \
 119   "16\tmain" \
 120   "17\tinc" \
 121   "18\tmain" \
 122   "19\tinc" \
 123   "20\tmain"] "\r\n"] "backward - 1"
 124
 125 # moving further back shows the 6 first function calls
 126 gdb_test "record function-call-history -" [join [list \
 127   "0\tmain" \
 128   "1\tinc" \
 129   "2\tmain" \
 130   "3\tinc" \
 131   "4\tmain" \
 132   "5\tinc"] "\r\n"] "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 # moving forward again, but this time with file and line number, expected to see the first 15 entries
 141 gdb_test "record function-call-history /l +" [join [list \
 142   ".*$srcfile:40-41\tmain" \
 143   ".*$srcfile:22-24\tinc" \
 144   ".*$srcfile:40-41\tmain" \
 145   ".*$srcfile:22-24\tinc" \
 146   ".*$srcfile:40-41\tmain" \
 147   ".*$srcfile:22-24\tinc" \
 148   ".*$srcfile:40-41\tmain" \
 149   ".*$srcfile:22-24\tinc" \
 150   ".*$srcfile:40-41\tmain" \
 151   ".*$srcfile:22-24\tinc" \
 152   ".*$srcfile:40-41\tmain" \
 153   ".*$srcfile:22-24\tinc" \
 154   ".*$srcfile:40-41\tmain" \
 155   ".*$srcfile:22-24\tinc" \
 156   ".*$srcfile:40-41\tmain"] "\r\n"] "forward /l - 1"
 157
 158 # moving forward and expect to see the latest 6 entries
 159 gdb_test "record function-call-history /l +" [join [list \
 160   ".*$srcfile:22-24\tinc" \
 161   ".*$srcfile:40-41\tmain" \
 162   ".*$srcfile:22-24\tinc" \
 163   ".*$srcfile:40-41\tmain" \
 164   ".*$srcfile:22-24\tinc" \
 165   ".*$srcfile:40-43\tmain"] "\r\n"] "forward /l - 2"
 166
 167 # moving further forward shouldn't work
 168 gdb_test "record function-call-history /l +" "At the end of the branch trace record\\." "forward /l - 3"
 169 gdb_test "record function-call-history /l" "At the end of the branch trace record\\." "forward /l - 4"
 170
 171 set expected_range [join [list \
 172   "3\tinc" \
 173   "4\tmain" \
 174   "5\tinc" \
 175   "6\tmain" \
 176   "7\tinc" \
 177   "8\tmain" \
 178   "9\tinc"] "\r\n"]
 179
 180 # show functions in instruction range
 181 gdb_test "record function-call-history 3,10" $expected_range
 182 gdb_test "record function-call-history 3,+7" $expected_range
 183 gdb_test "record function-call-history 10,-7" $expected_range
 184
 185 # set bp after fib recursion and continue
 186 set bp_location [gdb_get_line_number "bp.2" $testfile.c]
 187 gdb_breakpoint $bp_location
 188 gdb_continue_to_breakpoint "cont to $bp_location" ".*$testfile.c:$bp_location.*"
 189
 190 # at this point we expect to have main, fib, ..., fib, main, where fib occurs 9 times,
 191 # so we limit the output to only show the latest 11 function calls
 192 gdb_test_no_output "set record function-call-history-size 11"
 193 gdb_test "record function-call-history" [join [list \
 194   "20\tmain" \
 195   "21\tfib" \
 196   "22\tfib" \
 197   "23\tfib" \
 198   "24\tfib" \
 199   "25\tfib" \
 200   "26\tfib" \
 201   "27\tfib" \
 202   "28\tfib" \
 203   "29\tfib" \
 204   "30\tmain"] "\r\n"] "recursive"