gdb/testsuite/gdb.mi/mi-watch.exp

   1 # Copyright 1999-2022 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 # Test Machine interface (MI) operations
  17 #
  18 # Test MI watchpoint commands.
  19 #
  20 # The goal is not to test gdb functionality, which is done by other
  21 # tests, but to verify the correct output response to MI operations.
  22
  23 load_lib mi-support.exp
  24 set MIFLAGS "-i=mi"
  25
  26 gdb_exit
  27
  28 standard_testfile basics.c
  29
  30 if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
  31      untested "failed to compile"
  32      return -1
  33 }
  34
  35 proc test_watchpoint_creation_and_listing {} {
  36     global mi_gdb_prompt
  37     global srcfile
  38     global hex
  39
  40     set line_callee4_head [gdb_get_line_number "callee4 ("]
  41     set line_callee4_body [expr $line_callee4_head + 2]
  42
  43     # Insert a watchpoint and list
  44     # Tests:
  45     # -break-watch C
  46     # -break-list
  47
  48     mi_gdb_test "111-break-watch C" \
  49              "111\\^done,wpt=\{number=\"2\",exp=\"C\"\}" \
  50              "break-watch operation"
  51
  52     mi_gdb_test "222-break-list" \
  53             "222\\\^done,BreakpointTable=\{nr_rows=\".\",nr_cols=\".\",hdr=\\\[\{width=\".*\",alignment=\".*\",col_name=\"number\",colhdr=\"Num\"\}.*colhdr=\"Type\".*colhdr=\"Disp\".*colhdr=\"Enb\".*colhdr=\"Address\".*colhdr=\"What\".*\\\],body=\\\[bkpt=\{number=\"2\",type=\".*watchpoint\",disp=\"keep\",enabled=\"y\",what=\"C\",thread-groups=\\\[\"i1\"\\\],times=\"0\",original-location=\"C\"\}\\\]\}" \
  54                 "list of watchpoints"
  55
  56 }
  57
  58 # UNUSED at the time
  59 proc test_awatch_creation_and_listing {} {
  60     global mi_gdb_prompt
  61     global srcfile
  62     global hex
  63
  64     set line_main_head [gdb_get_line_number "main ("]
  65     set line_main_body [expr $line_main_head + 2]
  66
  67     # Insert an access watchpoint and list it
  68     # Tests:
  69     # -break-watch -a A
  70     # -break-list
  71
  72     mi_gdb_test "333-break-watch -a A" \
  73              "333\\^done,bkpt=\{number=\"1\",addr=\"$hex\",file=\".*basics.c\",line=\"$line_main_body\"\}" \
  74              "break-watch -a operation"
  75
  76     mi_gdb_test "444-break-list" \
  77             "444\\^done,BreakpointTable=\{.*,hdr=\\\[.*\\\],body=\\\[bkpt=\{number=\"3\",type=\"watchpoint\",disp=\"del\",enabled=\"y\",addr=\"$hex\",func=\"main\",file=\".*basics.c\",line=\"$line_main_body\",thread-groups=\\\[\"i1\"\\\],times=\"0\"\},.*\}\\\]\}" \
  78                 "list of watchpoints awatch"
  79
  80     mi_gdb_test "777-break-delete 3" \
  81             "777\\^done" \
  82             "delete access watchpoint"
  83 }
  84
  85 # UNUSED at the time
  86 proc test_rwatch_creation_and_listing {} {
  87     global mi_gdb_prompt
  88     global srcfile
  89     global hex
  90
  91     set line_main_head [gdb_get_line_number "main ("]
  92     set line_main_body [expr $line_main_head + 2]
  93
  94     # Insert a read watchpoint and list it.
  95     # Tests:
  96     # -break-watch -r B
  97     # -break-list
  98
  99     mi_gdb_test "200-break-watch -r C" \
 100              "200\\^done,bkpt=\{number=\"5\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"$hex\",func=\"callee4\",file=\".*basics.c\",line=\"$line_main_body\",times=\"0\"\}" \
 101              "break-watch -r operation"
 102
 103     mi_gdb_test "300-break-list" \
 104             "300\\^done,BreakpointTable=\{.*,hdr=\\\[.*\\\],body=\\\[bkpt=\{number=\"5\",type=\"breakpoint\",disp=\"keep\",enabled=\"y\",addr=\"$hex\",func=\"main\",file=\".*basics.c\",line=\"$line_main_body\",thread-groups=\\\[\"i1\"\\\],times=\"0\"\},.*\}\\\}\}" \
 105                 "list of breakpoints"
 106
 107     mi_gdb_test "177-break-delete 4" \
 108             "177\\^done" \
 109             "delete read watchpoint"
 110 }
 111
 112 proc test_watchpoint_triggering {} {
 113     global mi_gdb_prompt
 114     global hex fullname_syntax srcfile
 115
 116     set line_callee4_return_0     [gdb_get_line_number "return 0;"]
 117     set line_callee3_head         [gdb_get_line_number "callee3 ("]
 118     set line_callee3_close_brace  [expr $line_callee3_head + 3]
 119
 120     # Continue execution until the watchpoint is reached,  continue again,
 121     # to see the watchpoint go out of scope.
 122     # Does:
 123     # -exec-continue (Here wp triggers)
 124     # -exec-continue (Here wp goes out of scope)
 125
 126     mi_execute_to "exec-continue" "watchpoint-trigger" "callee4" "" \
 127         ".*basics.c" $line_callee4_return_0 \
 128         {"" "wpt=\{number=\"2\",exp=\"C\"\},value=\{old=\".*\",new=\"3\"\}"} \
 129         "watchpoint trigger"
 130
 131     mi_execute_to "exec-continue" "watchpoint-scope" "callee3" ".*" \
 132         ".*basics.c" $line_callee3_close_brace \
 133         {"" "wpnum=\"2\""} \
 134         "watchpoint scope"
 135 }
 136
 137 proc test_watchpoint_all {mi_mode type} {
 138     upvar srcdir srcdir
 139     upvar subdir subdir
 140     upvar binfile binfile
 141
 142     if {$type == "hw" && [target_info exists gdb,no_hardware_watchpoints] } {
 143         return
 144     }
 145
 146     mi_gdb_exit
 147
 148     if {$mi_mode == "separate"} {
 149         set start_ops "separate-mi-tty"
 150     } else {
 151         set start_ops ""
 152     }
 153     if [mi_gdb_start $start_ops] {
 154         return
 155     }
 156
 157     if {$type == "sw"} {
 158         set option 0
 159     } else {
 160         set option 1
 161     }
 162     mi_gdb_test "567-gdb-set can-use-hw-watchpoints $option" \
 163         "567\\^done" \
 164         "hw watchpoints toggle"
 165
 166     mi_delete_breakpoints
 167     mi_gdb_reinitialize_dir $srcdir/$subdir
 168     mi_gdb_load ${binfile}
 169
 170     mi_runto callee4
 171     test_watchpoint_creation_and_listing
 172     #test_rwatch_creation_and_listing
 173     #test_awatch_creation_and_listing
 174     test_watchpoint_triggering
 175 }
 176
 177 if [gdb_debug_enabled] {
 178   # gdb debug doesn't work for separate-mi-tty.
 179   set modes {"main"}
 180 } else {
 181   set modes {"main" "separate"}
 182 }
 183
 184 # Run the tests twice, once using software watchpoints, and another
 185 # with hardware watchpoints.
 186 foreach_with_prefix mi-mode $modes {
 187     foreach_with_prefix wp-type {"sw" "hw"} {
 188         test_watchpoint_all ${mi-mode} ${wp-type}
 189     }
 190 }