1# Copyright 2012-2015 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 16load_lib trace-support.exp 17 18if {[skip_shlib_tests]} { 19 return 0 20} 21 22standard_testfile pending.c 23set libfile1 "pendshr1" 24set libfile2 "pendshr2" 25set executable $testfile 26set libsrc1 $srcdir/$subdir/$libfile1.c 27set libsrc2 $srcdir/$subdir/$libfile2.c 28set lib_sl1 [standard_output_file pendshr1.sl] 29set lib_sl2 [standard_output_file pendshr2.sl] 30 31set lib_opts [gdb_target_symbol_prefix_flags] 32 33if { [gdb_compile_shlib $libsrc1 $lib_sl1 $lib_opts] != "" 34 || [gdb_compile_shlib $libsrc2 $lib_sl2 $lib_opts] != ""} { 35 untested "Could not compile either $libsrc1 or $libsrc2" 36 return -1 37} 38 39set exec_opts [list debug shlib=$lib_sl1 shlib_load] 40if { [gdb_compile $srcdir/$subdir/$srcfile $binfile executable $exec_opts] != "" } { 41 untested "Failed to compile $srcfile" 42 return -1 43} 44 45load_lib mi-support.exp 46set MIFLAGS "-i=mi" 47 48# Test when GDB connects to a disconnected stub, existing tracepoints in 49# remote stub can be uploaded to GDB, and GDB emits MI notification if 50# new tracepoints are created. 51 52proc test_reconnect { } { 53 with_test_prefix "reconnect" { 54 55 global gdbserver_reconnect_p 56 global gdb_prompt 57 global executable 58 global lib_sl1 lib_sl2 59 60 set gdbserver_reconnect_p 1 61 if { [info proc gdb_reconnect] == "" } { 62 return 0 63 } 64 65 clean_restart $executable 66 gdb_load_shlibs $lib_sl1 67 gdb_load_shlibs $lib_sl2 68 if ![runto_main] then { 69 fail "Can't run to main" 70 return 0 71 } 72 # Create tracepoints on marker and main, and leave them in the 73 # remote stub. 74 gdb_test "trace marker" "Tracepoint.*at.* file .*" \ 75 "tracepoint on marker" 76 gdb_test "trace main" "Tracepoint.*at.* file .*" \ 77 "tracepoint on main" 78 gdb_test_no_output "tstart" "start trace experiment" 79 80 set test "disconnect" 81 gdb_test_multiple "disconnect" $test { 82 -re "Trace is running but will stop on detach; detach anyway\\? \\(y or n\\) $" { 83 pass $test 84 85 set test "disconnected" 86 gdb_test_multiple "y" $test { 87 -re "$gdb_prompt $" { 88 pass "$test" 89 } 90 } 91 } 92 } 93 94 gdb_exit 95 96 if [mi_gdb_start] { 97 return 98 } 99 100 global srcdir 101 global subdir 102 global binfile 103 104 mi_gdb_reinitialize_dir $srcdir/$subdir 105 mi_gdb_load ${binfile} 106 107 global gdbserver_protocol 108 global gdbserver_gdbport 109 110 # Create tracepoints on marker and pendfunc2. 111 mi_gdb_test "-break-insert -a -f pendfunc2" \ 112 {.*\^done,bkpt=.*addr=\"<PENDING>\".*} \ 113 "insert tracepoint on pendfunc2" 114 mi_gdb_test "-break-insert -a marker" {.*\^done,bkpt=.*\".*} \ 115 "insert tracepoint on marker" 116 117 # Connect to the remote stub again, and make sure GDB merges the 118 # tracepoints of both sides correctly. 119 send_gdb "47-target-select $gdbserver_protocol $gdbserver_gdbport\n" 120 121 global mi_gdb_prompt 122 set test "tracepoint created" 123 gdb_expect { 124 -re "=breakpoint-created,bkpt=\{number=\"1\",type=\"tracepoint\"" { 125 # Tracepoint 1 in GDB, which has already existed before 126 # connecting, should have been merged with a tracepoint on 127 # the target, so we shouldn't see a =breakpoint-created 128 # notification for it. 129 fail "$test: 1" 130 exp_continue 131 } 132 -re "=breakpoint-created,bkpt=\{number=\"2\",type=\"tracepoint\"" { 133 # Similar to above. 134 fail "$test: 2" 135 exp_continue 136 } 137 -re "=breakpoint-created,bkpt=\{number=\"3\",type=\"tracepoint\",disp=\"keep\",enabled=\"y\",\[^\n\]+,func=\"main\"\[^\n\]+,installed=\"y\"" { 138 # A tracepoint on main was defined in the stub, not in GDB, 139 # so we should see a =breakpoint-created notification. 140 pass $test 141 } 142 } 143 # Tracepoint on marker is defined. After the sync, we know that 144 # the tracepoint is in remote stub. Mark it 'installed'. 145 set test "tracepoint on marker is installed" 146 gdb_expect { 147 -re "=breakpoint-modified,bkpt=\{number=\"2\".*,func=\"marker\".*installed=\"y\".*${mi_gdb_prompt}$" { 148 pass "$test" 149 } 150 } 151 # Check that tracepoint 1 is still pending. 152 mi_gdb_test "-break-info 1" \ 153 {.*\^done,BreakpointTable=.*addr=\"<PENDING>\".*} \ 154 "break-info 1" 155 156 set gdbserver_reconnect_p 0 157 } 158} 159 160# Test 'breakpoint-modified' notification is emited when pending tracepoints are 161# resolved. 162 163proc test_pending_resolved { } { 164 with_test_prefix "pending resolved" { 165 global decimal hex 166 global executable 167 global srcdir 168 global subdir 169 global binfile 170 global lib_sl1 lib_sl2 171 global mi_gdb_prompt 172 173 gdb_exit 174 if [mi_gdb_start] { 175 continue 176 } 177 178 mi_gdb_reinitialize_dir $srcdir/$subdir 179 mi_gdb_load ${binfile} 180 mi_load_shlibs $lib_sl1 $lib_sl2 181 182 # Create a pending tracepoint on pendfunc2 183 mi_gdb_test "-break-insert -a -f pendfunc2" \ 184 {.*\^done,bkpt=.*addr=\"<PENDING>\".*} \ 185 "insert breakpoint on pendfunc2" 186 # Insert breakpoint on marker 187 mi_gdb_test "-break-insert marker" {.*\^done,bkpt=.*} \ 188 "insert breakpoint on marker" 189 190 mi_run_cmd 191 mi_expect_stop "breakpoint-hit" "marker" ""\ 192 ".*" ".*" {"" "disp=\"keep\""} \ 193 "continue to marker breakpoint" 194 mi_gdb_test "-trace-start" {\^done} "trace start" 195 196 mi_send_resuming_command "exec-continue" "continuing execution to marker 1" 197 198 # It is expected to get two "=breakpoint-modified" notifications. 199 # Pending tracepoint is resolved. 200 set test "tracepoint on pendfunc2 resolved" 201 gdb_expect { 202 -re "=breakpoint-modified,bkpt=\{number=\"1\",type=\"tracepoint\".*.*times=\"0\".*installed=\"n\"" { 203 pass "$test" 204 } 205 } 206 # Resolved tracepoint is installed. 207 set test "tracepoint on pendfunc2 installed" 208 gdb_expect { 209 -re "=breakpoint-modified,bkpt=\{number=\"1\",type=\"tracepoint\".*.*times=\"0\".*installed=\"y\"" { 210 pass "$test" 211 } 212 } 213 214 mi_expect_stop "breakpoint-hit" "marker" ".*" ".*" ".*" \ 215 {"" "disp=\"keep\""} "continue to marker" 216 217 218 mi_gdb_test "-trace-stop" {\^done,.*} "trace stop" 219 mi_gdb_test "-trace-find frame-number 0" \ 220 "-trace-find frame-number 0\r\n\\^done,found=\"1\",tracepoint=\"${decimal}\",traceframe=\"0\",frame=\{.*" \ 221 "-trace-find frame-number 0" 222 mi_gdb_test "-trace-find none" {\^done,found="0"} "back to live inferior" 223 224 mi_send_resuming_command "exec-continue" "continuing to exit" 225 set test "tracepoint on pendfunc2 becomes pending again" 226 gdb_expect { 227 -re ".*=breakpoint-modified,bkpt=\{number=\"1\",type=\"tracepoint\".*addr=\"<PENDING>\",.*times=\"0\"" { 228 pass "$test" 229 } 230 -re ".*${mi_gdb_prompt}$" { 231 fail $test 232 } 233 timeout { 234 fail "$test (timeout)" 235 } 236 } 237 238 mi_expect_stop "exited-normally" "" "" "" "" "" "" 239 } 240} 241 242# Test target supports tracepoints or not. 243 244clean_restart $executable 245 246gdb_load_shlibs $lib_sl1 247gdb_load_shlibs $lib_sl2 248 249if ![runto_main] { 250 fail "Can't run to main to check for trace support" 251 return -1 252} 253 254if ![gdb_target_supports_trace] { 255 unsupported "Current target does not support trace" 256 return -1 257} 258 259gdb_exit 260 261test_reconnect 262 263test_pending_resolved 264 265return 0 266