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

   1 # Copyright 2008-2020 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 reverse debugging.
  18
  19 if ![supports_reverse] {
  20     return
  21 }
  22
  23 standard_testfile .c ur1.c
  24
  25 if { [prepare_for_testing "failed to prepare" $testfile \
  26           [list $srcfile $srcfile2]] } {
  27     return -1
  28 }
  29
  30 set bp_location1  [gdb_get_line_number "set breakpoint 1 here"]
  31 set bp_location7  [gdb_get_line_number "set breakpoint 7 here"]
  32 set bp_location8  [gdb_get_line_number "set breakpoint 8 here" "$srcfile2"]
  33 set bp_location19 [gdb_get_line_number "set breakpoint 19 here"]
  34 set bp_location20 [gdb_get_line_number "set breakpoint 20 here"]
  35 set bp_location21 [gdb_get_line_number "set breakpoint 21 here"]
  36
  37 runto main
  38
  39 if [supports_process_record] {
  40     # Activate process record/replay
  41     gdb_test_no_output "record" "turn on process record"
  42 }
  43
  44 # Verify that plain vanilla "until <location>" works.
  45 #
  46 gdb_test "until $bp_location1" \
  47     "main .* at .*:$bp_location1.*" \
  48     "until line number"
  49
  50 # Advance up to factorial, outer invocation
  51 #
  52 gdb_test_multiple "advance factorial" "" {
  53     -wrap -re "factorial .value=6..*$srcfile:$bp_location7.*" {
  54         pass $gdb_test_name
  55     }
  56     -wrap -re "Process record does not support instruction 0xfae64 at.*" {
  57         kfail "gdb/25038" $gdb_test_name
  58         return -1
  59     }
  60 }
  61
  62 # At this point, 'until' should continue the inferior up to when all the
  63 # inner invocations of factorial() are completed and we are back at this
  64 # frame.
  65 #
  66 gdb_test "until $bp_location19" \
  67     "factorial .value=720.*${srcfile}:$bp_location19.*" \
  68     "until factorial, recursive function"
  69
  70 # Finish out to main scope
  71 #
  72 gdb_test "finish" \
  73     "main .*$srcfile:.*" \
  74     "finish to main"
  75
  76 # Advance to a function called by main (marker2)
  77 #
  78 gdb_test "advance marker2" \
  79     "marker2 .a=43.*$srcfile2:$bp_location8.*" \
  80     "advance to marker2"
  81
  82 # Now issue an until with another function, not called by the current
  83 # frame, as argument. This should not work, i.e. the program should
  84 # stop at main, the caller, where we put the 'guard' breakpoint.
  85 #
  86 set test_msg "until func, not called by current frame"
  87 gdb_test_multiple "until marker3" "$test_msg" {
  88     -re "main .*at .*${srcfile}:$bp_location20.*$gdb_prompt $" {
  89         pass "$test_msg"
  90     }
  91     -re "main .*at .*${srcfile}:$bp_location21.*$gdb_prompt $" {
  92         pass "$test_msg"
  93     }
  94 }
  95
  96 ###
  97 ###
  98 ###
  99
 100 # Set reverse execution direction
 101
 102 gdb_test_no_output "set exec-dir reverse" "set reverse execution"
 103
 104 #
 105 # We should now be at main, after the return from marker2.
 106 # "Advance" backward into marker2.
 107 #
 108
 109 gdb_test "advance marker2" \
 110     "marker2 .a=43.*$srcfile2:$bp_location8.*" \
 111     "reverse-advance to marker2"
 112
 113 # Finish out to main scope (backward)
 114
 115 gdb_test "finish" \
 116     " in main .*$srcfile:$bp_location20.*" \
 117     "reverse-finish from marker2"
 118
 119 # Advance backward to last line of factorial (outer invocation)
 120
 121 gdb_test "advance $bp_location19" \
 122     "factorial .value=720.*${srcfile}:$bp_location19.*" \
 123     "reverse-advance to final return of factorial"
 124
 125 # Now do "until" across the recursive calls,
 126 # ending up in the same frame where we are now.
 127
 128 gdb_test "until $bp_location7" \
 129     "factorial .value=6..*$srcfile:$bp_location7.*" \
 130     "reverse-until to entry of factorial"