gdb/testsuite/gdb.trace/mi-tracepoint-changed.exp

   1 # Copyright 2012-2020 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 load_lib trace-support.exp
  17
  18 if {[skip_shlib_tests]} {
  19     return 0
  20 }
  21 if ![gdb_trace_common_supports_arch] {
  22     unsupported "no trace-common.h support for arch"
  23     return -1
  24 }
  25
  26 standard_testfile pending.c
  27 set libfile1 "pendshr1"
  28 set libfile2 "pendshr2"
  29 set executable $testfile
  30 set libsrc1  $srcdir/$subdir/$libfile1.c
  31 set libsrc2  $srcdir/$subdir/$libfile2.c
  32 set lib_sl1  [standard_output_file pendshr1.sl]
  33 set lib_sl2  [standard_output_file pendshr2.sl]
  34
  35 set lib_opts [gdb_target_symbol_prefix_flags]
  36
  37 if { [gdb_compile_shlib $libsrc1 $lib_sl1 $lib_opts] != ""
  38      || [gdb_compile_shlib $libsrc2 $lib_sl2 $lib_opts] != ""} {
  39     untested "failed to compile shared library"
  40     return -1
  41 }
  42
  43 set exec_opts [list debug shlib=$lib_sl1 shlib_load]
  44 if { [gdb_compile $srcdir/$subdir/$srcfile $binfile executable $exec_opts] != "" } {
  45     untested "failed to compile"
  46     return -1
  47 }
  48
  49 load_lib mi-support.exp
  50 set MIFLAGS "-i=mi"
  51
  52 # Test when GDB connects to a disconnected stub, existing tracepoints in
  53 # remote stub can be uploaded to GDB, and GDB emits MI notification if
  54 # new tracepoints are created.
  55
  56 proc test_reconnect { } {
  57     with_test_prefix "reconnect" {
  58
  59         global gdbserver_reconnect_p
  60         global gdb_prompt
  61         global executable
  62         global lib_sl1 lib_sl2
  63
  64         set gdbserver_reconnect_p 1
  65         if { [info proc gdb_reconnect] == "" } {
  66             return 0
  67         }
  68
  69         clean_restart $executable
  70         gdb_load_shlib $lib_sl1
  71         gdb_load_shlib $lib_sl2
  72         if ![runto_main] then {
  73             fail "can't run to main"
  74             return 0
  75         }
  76         # Create tracepoints on marker and main, and leave them in the
  77         # remote stub.
  78         gdb_test "trace marker" "Tracepoint.*at.* file .*" \
  79             "tracepoint on marker"
  80         gdb_test "trace main" "Tracepoint.*at.* file .*" \
  81             "tracepoint on main"
  82         gdb_test_no_output "tstart" "start trace experiment"
  83
  84         set test "disconnect"
  85         gdb_test_multiple "disconnect" $test {
  86             -re "Trace is running but will stop on detach; detach anyway\\? \\(y or n\\) $" {
  87                 pass $test
  88
  89                 set test "disconnected"
  90                 gdb_test_multiple "y" $test {
  91                     -re "$gdb_prompt $" {
  92                         pass "$test"
  93                     }
  94                 }
  95             }
  96         }
  97
  98         gdb_exit
  99
 100         if [mi_gdb_start] {
 101             return
 102         }
 103
 104         global srcdir
 105         global subdir
 106         global binfile
 107
 108         mi_gdb_reinitialize_dir $srcdir/$subdir
 109         mi_gdb_load ${binfile}
 110
 111         global gdbserver_protocol
 112         global gdbserver_gdbport
 113
 114         # Create tracepoints on marker and pendfunc2.
 115         mi_gdb_test "-break-insert -a -f pendfunc2" \
 116             {.*\^done,bkpt=.*addr=\"<PENDING>\".*} \
 117             "insert tracepoint on pendfunc2"
 118         mi_gdb_test "-break-insert -a marker" {.*\^done,bkpt=.*\".*} \
 119             "insert tracepoint on marker"
 120
 121         # Connect to the remote stub again, and make sure GDB merges the
 122         # tracepoints of both sides correctly.
 123         send_gdb "47-target-select $gdbserver_protocol $gdbserver_gdbport\n"
 124
 125         global mi_gdb_prompt
 126         set test "tracepoint created"
 127         gdb_expect {
 128             -re "=breakpoint-created,bkpt=\{number=\"1\",type=\"tracepoint\"" {
 129                 # Tracepoint 1 in GDB, which has already existed before
 130                 # connecting, should have been merged with a tracepoint on
 131                 # the target, so we shouldn't see a =breakpoint-created
 132                 # notification for it.
 133                 fail "$test: 1"
 134                 exp_continue
 135             }
 136             -re "=breakpoint-created,bkpt=\{number=\"2\",type=\"tracepoint\"" {
 137                 # Similar to above.
 138                 fail "$test: 2"
 139                 exp_continue
 140             }
 141             -re "=breakpoint-created,bkpt=\{number=\"3\",type=\"tracepoint\",disp=\"keep\",enabled=\"y\",\[^\n\]+,func=\"main\"\[^\n\]+,installed=\"y\"" {
 142                 # A tracepoint on main was defined in the stub, not in GDB,
 143                 # so we should see a =breakpoint-created notification.
 144                 pass $test
 145             }
 146         }
 147         # Tracepoint on marker is defined.  After the sync, we know that
 148         # the tracepoint is in remote stub.  Mark it 'installed'.
 149         set test "tracepoint on marker is installed"
 150         gdb_expect {
 151             -re "=breakpoint-modified,bkpt=\{number=\"2\".*,func=\"marker\".*installed=\"y\".*${mi_gdb_prompt}$" {
 152                 pass "$test"
 153             }
 154         }
 155         # Check that tracepoint 1 is still pending.
 156         mi_gdb_test "-break-info 1" \
 157             {.*\^done,BreakpointTable=.*addr=\"<PENDING>\".*} \
 158             "break-info 1"
 159
 160         set gdbserver_reconnect_p 0
 161     }
 162 }
 163
 164 # Test 'breakpoint-modified' notification is emited when pending tracepoints are
 165 # resolved.
 166
 167 proc test_pending_resolved { } {
 168     with_test_prefix "pending resolved" {
 169         global decimal hex
 170         global executable
 171         global srcdir
 172         global subdir
 173         global binfile
 174         global lib_sl1 lib_sl2
 175         global mi_gdb_prompt
 176
 177         gdb_exit
 178         if [mi_gdb_start] {
 179             continue
 180         }
 181
 182         mi_gdb_reinitialize_dir $srcdir/$subdir
 183         mi_gdb_load ${binfile}
 184         mi_load_shlibs $lib_sl1 $lib_sl2
 185
 186         # Create a pending tracepoint on pendfunc2
 187         mi_gdb_test "-break-insert -a -f pendfunc2" \
 188             {.*\^done,bkpt=.*addr=\"<PENDING>\".*} \
 189             "insert breakpoint on pendfunc2"
 190         # Insert breakpoint on marker
 191         mi_gdb_test "-break-insert marker" {.*\^done,bkpt=.*} \
 192             "insert breakpoint on marker"
 193
 194         mi_run_cmd
 195         mi_expect_stop "breakpoint-hit" "marker" ""\
 196             ".*" ".*" {"" "disp=\"keep\""} \
 197             "continue to marker breakpoint"
 198         mi_gdb_test "-trace-start" {\^done} "trace start"
 199
 200         mi_send_resuming_command "exec-continue" "continuing execution to marker 1"
 201
 202         # It is expected to get two "=breakpoint-modified" notifications.
 203         # Pending tracepoint is resolved.
 204         set test "tracepoint on pendfunc2 resolved"
 205         gdb_expect {
 206             -re "=breakpoint-modified,bkpt=\{number=\"1\",type=\"tracepoint\".*.*times=\"0\".*installed=\"n\"" {
 207                 pass "$test"
 208             }
 209         }
 210         # Resolved tracepoint is installed.
 211         set test "tracepoint on pendfunc2 installed"
 212         gdb_expect {
 213             -re "=breakpoint-modified,bkpt=\{number=\"1\",type=\"tracepoint\".*.*times=\"0\".*installed=\"y\"" {
 214                 pass "$test"
 215             }
 216         }
 217
 218         mi_expect_stop "breakpoint-hit" "marker" ".*" ".*" ".*" \
 219             {"" "disp=\"keep\""} "continue to marker"
 220
 221
 222         mi_gdb_test "-trace-stop" {\^done,.*} "trace stop"
 223         mi_gdb_test "-trace-find frame-number 0" \
 224             "-trace-find frame-number 0\r\n\\^done,found=\"1\",tracepoint=\"${decimal}\",traceframe=\"0\",frame=\{.*" \
 225             "-trace-find frame-number 0"
 226         mi_gdb_test "-trace-find none" {\^done,found="0"} "back to live inferior"
 227
 228         mi_send_resuming_command "exec-continue" "continuing to exit"
 229         set test "tracepoint on pendfunc2 becomes pending again"
 230         gdb_expect {
 231             -re ".*=breakpoint-modified,bkpt=\{number=\"1\",type=\"tracepoint\".*addr=\"<PENDING>\",.*times=\"0\"" {
 232                 pass "$test"
 233             }
 234             -re ".*${mi_gdb_prompt}$" {
 235                 fail $test
 236             }
 237             timeout {
 238                 fail "$test (timeout)"
 239             }
 240         }
 241
 242         mi_expect_stop "exited-normally" "" "" "" "" "" ""
 243     }
 244 }
 245
 246 # Test target supports tracepoints or not.
 247
 248 clean_restart $executable
 249
 250 gdb_load_shlib $lib_sl1
 251 gdb_load_shlib $lib_sl2
 252
 253 if ![runto_main] {
 254     fail "can't run to main to check for trace support"
 255     return -1
 256 }
 257
 258 if ![gdb_target_supports_trace] {
 259     unsupported "current target does not support trace"
 260     return -1
 261 }
 262
 263 gdb_exit
 264
 265 test_reconnect
 266
 267 test_pending_resolved
 268
 269 return 0