gdb/testsuite/gdb.base/dprintf.exp

   1 #   Copyright (C) 2012-2021 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 standard_testfile
  17
  18 if { [prepare_for_testing "failed to prepare" $testfile $srcfile] } {
  19     return -1
  20 }
  21
  22 set bp_location1 [gdb_get_line_number "set breakpoint 1 here"]
  23 set dp_location1 [gdb_get_line_number "set dprintf 1 here"]
  24
  25 if ![runto_main] {
  26     return -1
  27 }
  28
  29 gdb_test "dprintf" "Format string required"
  30
  31 gdb_test "dprintf foo" "Format string required"
  32
  33 gdb_test "dprintf 29" "Format string required"
  34
  35 delete_breakpoints
  36
  37 gdb_breakpoint "main"
  38
  39 gdb_test "dprintf foo,\"At foo entry\\n\"" \
  40   "Dprintf .*"
  41
  42 gdb_test "ignore \$bpnum 1" ".*Will ignore next crossing of breakpoint.*"
  43
  44 gdb_test "dprintf $dp_location1,\"arg=%d, g=%d\\n\", arg, g" \
  45   "Dprintf .*"
  46
  47 gdb_test_sequence "info breakpoints" "dprintf info 1" {
  48     "\[\r\n\]Num     Type           Disp Enb Address +What"
  49     "\[\r\n\]2       breakpoint"
  50     "\[\r\n\]3       dprintf"
  51     "\[\r\n\]        printf \"At foo entry\\\\n\""
  52     "\[\r\n\]4       dprintf"
  53     "\[\r\n\]        printf \"arg=%d, g=%d\\\\n\", arg, g"
  54 }
  55
  56 gdb_test "break $bp_location1" \
  57   "Breakpoint .*"
  58
  59 gdb_run_cmd
  60
  61 gdb_test "" "Breakpoint"
  62
  63 gdb_test "continue" "arg=1234, g=1234.*" "1st dprintf, gdb"
  64
  65 gdb_test "continue" "At foo entry.*arg=1235, g=2222.*" "2nd dprintf, gdb"
  66
  67 # Restart GDB and set set up for testing.
  68
  69 proc restart {} {
  70     global binfile
  71     global bp_location1 dp_location1
  72
  73     clean_restart $binfile
  74
  75     if ![runto_main] {
  76         return -1
  77     }
  78
  79     gdb_test "dprintf foo,\"At foo entry\\n\"" \
  80         "Dprintf .*"
  81
  82     gdb_test "dprintf $dp_location1,\"arg=%d, g=%d\\n\", arg, g" \
  83         "Dprintf .*"
  84
  85     gdb_test "break $bp_location1" "Breakpoint .*"
  86 }
  87
  88 # Test continuing across a dprintf.  PATTERN matches the output
  89 # generated by the dprintf.  MSG is used as test message.
  90
  91 proc test_dprintf {pattern msg} {
  92     gdb_test_stdio "continue" $pattern "" "$msg"
  93 }
  94
  95 # Test the "call" style.
  96
  97 proc test_call {} {
  98     global binfile
  99     global bp_location1
 100
 101     # Now switch styles and rerun; in the absence of redirection the
 102     # output should be the same.
 103
 104     with_test_prefix "printf" {
 105         restart
 106
 107         gdb_test_no_output "set dprintf-style call" "set dprintf style to call"
 108
 109         test_dprintf "At foo entry.*arg=1234, g=1234\r\n" "1st dprintf"
 110
 111         test_dprintf "At foo entry.*arg=1235, g=2222\r\n" "2nd dprintf"
 112     }
 113
 114     with_test_prefix "fprintf" {
 115         restart
 116
 117         gdb_test_no_output "set dprintf-function fprintf" "set dprintf function"
 118         gdb_test_no_output "set dprintf-channel stderr" "set dprintf channel"
 119
 120         gdb_test_no_output "set dprintf-style call" "set dprintf style to call"
 121
 122         test_dprintf "At foo entry.*arg=1234, g=1234\r\n" "1st dprintf"
 123
 124         test_dprintf "At foo entry.*arg=1235, g=2222\r\n" "2nd dprintf"
 125     }
 126 }
 127
 128 # The "call" style depends on having I/O functions available.
 129
 130 if ![target_info exists gdb,noinferiorio] {
 131     with_test_prefix "call" {
 132         test_call
 133     }
 134 }
 135
 136 # Test the "agent" style.
 137
 138 proc test_agent {} {
 139     global binfile
 140     global gdb_prompt
 141
 142     restart
 143
 144     set target_can_dprintf 1
 145     set msg "set dprintf style to agent"
 146     gdb_test_multiple "set dprintf-style agent" $msg {
 147         -re "warning: Target cannot run dprintf commands.*\r\n$gdb_prompt $" {
 148
 149             # The target reports that it doesn't support target side
 150             # commands at all.
 151             set target_can_dprintf 0
 152             unsupported "$msg"
 153         }
 154         -re ".*$gdb_prompt $" {
 155             pass "$msg"
 156         }
 157     }
 158
 159     if !$target_can_dprintf {
 160         return
 161     }
 162
 163     # Even if the target reports that it does support target side
 164     # commands, we can only tell that it supports them in combination
 165     # with a particular breakpoint type (Z0, Z1, etc.) when we try to
 166     # insert the breakpoint.  When "set breakpoint always-inserted is
 167     # off", that'll be on next continue.
 168     set msg "1st dprintf"
 169     gdb_test_multiple "continue" $msg {
 170         -re "Warning:.*Target doesn't support breakpoints that have target side commands.*\r\n$gdb_prompt $" {
 171             set target_can_dprintf 0
 172             unsupported "$msg"
 173         }
 174         -re "Breakpoint \[0-9\]+, foo .*$gdb_prompt $" {
 175             pass "$msg"
 176         }
 177     }
 178
 179     if $target_can_dprintf {
 180         gdb_test "continue" "Breakpoint \[0-9\]+, foo .*" "2nd dprintf"
 181
 182         gdb_test_sequence "info breakpoints" "dprintf info" {
 183             "\[\r\n\]Num     Type           Disp Enb Address +What"
 184             "\[\r\n\]1       breakpoint"
 185             "\[\r\n\]\tbreakpoint already hit 1 time"
 186             "\[\r\n\]2       dprintf"
 187             "\[\r\n\]        agent-printf \"At foo entry\\\\n\""
 188             "\[\r\n\]3       dprintf"
 189             "\[\r\n\]        agent-printf \"arg=%d, g=%d\\\\n\", arg, g"
 190             "\[\r\n\]4       breakpoint"
 191             "\[\r\n\]\tbreakpoint already hit 2 times"
 192         }
 193     }
 194 }
 195
 196 with_test_prefix "agent" {
 197     test_agent
 198 }
 199
 200 gdb_test "set dprintf-style foobar" "Undefined item: \"foobar\"." \
 201     "Set dprintf style to an unrecognized type"
 202
 203 # Test that force-disabling the BreakpointCommands RSP feature works
 204 # as expected.  dprintf relies on support for target-side breakpoint
 205 # commands --- use it as proxy.
 206 if [gdb_is_target_remote] {
 207     gdb_test_no_output "set remote breakpoint-commands-packet off"
 208     gdb_test "set dprintf-style agent" \
 209         "warning: Target cannot run dprintf commands.*" \
 210         "set dprintf-style agent, with feature disabled"
 211 }