gdb/testsuite/gdb.reverse/until-precsave.exp

   1 # Copyright 2008-2019 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 'until' and
  17 # 'advance' in precord logfile.
  18
  19 # This test suitable only for process record-replay
  20 if ![supports_process_record] {
  21     return
  22 }
  23
  24 standard_testfile until-reverse.c ur1.c
  25 set precsave [standard_output_file until.precsave]
  26
  27 if { [prepare_for_testing "failed to prepare" $testfile \
  28           [list $srcfile $srcfile2]] } {
  29     return -1
  30 }
  31
  32 set bp_location1  [gdb_get_line_number "set breakpoint 1 here"]
  33 set bp_location7  [gdb_get_line_number "set breakpoint 7 here"]
  34 set bp_location8  [gdb_get_line_number "set breakpoint 8 here" "$srcfile2"]
  35 set bp_location19 [gdb_get_line_number "set breakpoint 19 here"]
  36 set bp_location20 [gdb_get_line_number "set breakpoint 20 here"]
  37 set bp_location21 [gdb_get_line_number "set breakpoint 21 here"]
  38
  39 runto main
  40
  41 if [supports_process_record] {
  42     # Activate process record/replay
  43     gdb_test_no_output "record" "turn on process record"
  44 }
  45
  46 set end_of_main [gdb_get_line_number "set breakpoint 10a here" ]
  47 gdb_test "break $end_of_main" \
  48     "Breakpoint $decimal at .*$srcfile, line $end_of_main\." \
  49     "breakpoint at end of main"
  50
  51 # This can take awhile.
  52 with_timeout_factor 20 {
  53     set test "run to end of main"
  54     set pass_pattern "Breakpoint .* set breakpoint 10a here .*"
  55     set kfail_pattern "Process record does not support instruction 0xfae64 at.*"
  56     gdb_test_multiple "continue" $test {
  57         -re "\[\r\n\]*(?:$pass_pattern)\[\r\n\]+$gdb_prompt $" {
  58             pass $test
  59         }
  60         -re "\[\r\n\]*(?:$kfail_pattern)\[\r\n\]+$gdb_prompt $" {
  61             kfail "gdb/25038" $test
  62             return -1
  63         }
  64     }
  65 }
  66
  67 # So can this, against gdbserver, for example.
  68
  69 with_timeout_factor 10 {
  70     gdb_test "record save $precsave" \
  71         "Saved core file $precsave with execution log\."  \
  72         "save process recfile"
  73 }
  74
  75 gdb_test "kill" "" "kill process, prepare to debug log file" \
  76     "Kill the program being debugged\\? \\(y or n\\) " "y"
  77
  78 gdb_test "record restore $precsave" \
  79     "Restored records from core file .*" \
  80     "reload core file"
  81
  82 # Verify that plain vanilla "until <location>" works.
  83 #
  84 gdb_test "until $bp_location1" \
  85     "main .* at .*:$bp_location1.*" \
  86     "until line number"
  87
  88 # Advance up to factorial, outer invocation
  89 #
  90 gdb_test "advance factorial" \
  91     "factorial .value=6..*$srcfile:$bp_location7.*" \
  92     "advance to factorial"
  93
  94 # At this point, 'until' should continue the inferior up to when all the
  95 # inner invocations of factorial() are completed and we are back at this
  96 # frame.
  97 #
  98 gdb_test "until $bp_location19" \
  99     "factorial .value=720.*${srcfile}:$bp_location19.*" \
 100     "until factorial, recursive function"
 101
 102 # Finish out to main scope
 103 #
 104 gdb_test "finish" \
 105     "main .*$srcfile:.*" \
 106     "finish to main"
 107
 108 # Advance to a function called by main (marker2)
 109 #
 110 gdb_test "advance marker2" \
 111     "marker2 .a=43.*$srcfile2:$bp_location8.*" \
 112     "advance to marker2"
 113
 114 # Now issue an until with another function, not called by the current
 115 # frame, as argument. This should not work, i.e. the program should
 116 # stop at main, the caller, where we put the 'guard' breakpoint.
 117 #
 118 set test_msg "until func, not called by current frame"
 119 gdb_test_multiple "until marker3" "$test_msg" {
 120     -re "main .*at .*${srcfile}:$bp_location20.*$gdb_prompt $" {
 121         pass "$test_msg"
 122     }
 123     -re "main .*at .*${srcfile}:$bp_location21.*$gdb_prompt $" {
 124         pass "$test_msg"
 125     }
 126 }
 127
 128 ###
 129 ###
 130 ###
 131
 132 # Set reverse execution direction
 133
 134 gdb_test_no_output "set exec-dir reverse" "set reverse execution"
 135
 136 #
 137 # We should now be at main, after the return from marker2.
 138 # "Advance" backward into marker2.
 139 #
 140
 141 gdb_test "advance marker2" \
 142     "marker2 .a=43.*$srcfile2:$bp_location8.*" \
 143     "reverse-advance to marker2"
 144
 145 # Finish out to main scope (backward)
 146
 147 gdb_test "finish" \
 148     " in main .*$srcfile:$bp_location20.*" \
 149     "reverse-finish from marker2"
 150
 151 # Advance backward to last line of factorial (outer invocation)
 152
 153 gdb_test "advance $bp_location19" \
 154     "factorial .value=720.*${srcfile}:$bp_location19.*" \
 155     "reverse-advance to final return of factorial"
 156
 157 # Now do "until" across the recursive calls,
 158 # ending up in the same frame where we are now.
 159
 160 gdb_test "until $bp_location7" \
 161     "factorial .value=6..*$srcfile:$bp_location7.*" \
 162     "reverse-until to entry of factorial"