# Copyright 2012-2017 Free Software Foundation, Inc. # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . load_lib trace-support.exp if {[skip_shlib_tests]} { return 0 } standard_testfile pending.c set libfile1 "pendshr1" set libfile2 "pendshr2" set executable $testfile set libsrc1 $srcdir/$subdir/$libfile1.c set libsrc2 $srcdir/$subdir/$libfile2.c set lib_sl1 [standard_output_file pendshr1.sl] set lib_sl2 [standard_output_file pendshr2.sl] set lib_opts [gdb_target_symbol_prefix_flags] if { [gdb_compile_shlib $libsrc1 $lib_sl1 $lib_opts] != "" || [gdb_compile_shlib $libsrc2 $lib_sl2 $lib_opts] != ""} { untested "failed to compile shared library" return -1 } set exec_opts [list debug shlib=$lib_sl1 shlib_load] if { [gdb_compile $srcdir/$subdir/$srcfile $binfile executable $exec_opts] != "" } { untested "failed to compile" return -1 } load_lib mi-support.exp set MIFLAGS "-i=mi" # Test when GDB connects to a disconnected stub, existing tracepoints in # remote stub can be uploaded to GDB, and GDB emits MI notification if # new tracepoints are created. proc test_reconnect { } { with_test_prefix "reconnect" { global gdbserver_reconnect_p global gdb_prompt global executable global lib_sl1 lib_sl2 set gdbserver_reconnect_p 1 if { [info proc gdb_reconnect] == "" } { return 0 } clean_restart $executable gdb_load_shlib $lib_sl1 gdb_load_shlib $lib_sl2 if ![runto_main] then { fail "can't run to main" return 0 } # Create tracepoints on marker and main, and leave them in the # remote stub. gdb_test "trace marker" "Tracepoint.*at.* file .*" \ "tracepoint on marker" gdb_test "trace main" "Tracepoint.*at.* file .*" \ "tracepoint on main" gdb_test_no_output "tstart" "start trace experiment" set test "disconnect" gdb_test_multiple "disconnect" $test { -re "Trace is running but will stop on detach; detach anyway\\? \\(y or n\\) $" { pass $test set test "disconnected" gdb_test_multiple "y" $test { -re "$gdb_prompt $" { pass "$test" } } } } gdb_exit if [mi_gdb_start] { return } global srcdir global subdir global binfile mi_gdb_reinitialize_dir $srcdir/$subdir mi_gdb_load ${binfile} global gdbserver_protocol global gdbserver_gdbport # Create tracepoints on marker and pendfunc2. mi_gdb_test "-break-insert -a -f pendfunc2" \ {.*\^done,bkpt=.*addr=\"\".*} \ "insert tracepoint on pendfunc2" mi_gdb_test "-break-insert -a marker" {.*\^done,bkpt=.*\".*} \ "insert tracepoint on marker" # Connect to the remote stub again, and make sure GDB merges the # tracepoints of both sides correctly. send_gdb "47-target-select $gdbserver_protocol $gdbserver_gdbport\n" global mi_gdb_prompt set test "tracepoint created" gdb_expect { -re "=breakpoint-created,bkpt=\{number=\"1\",type=\"tracepoint\"" { # Tracepoint 1 in GDB, which has already existed before # connecting, should have been merged with a tracepoint on # the target, so we shouldn't see a =breakpoint-created # notification for it. fail "$test: 1" exp_continue } -re "=breakpoint-created,bkpt=\{number=\"2\",type=\"tracepoint\"" { # Similar to above. fail "$test: 2" exp_continue } -re "=breakpoint-created,bkpt=\{number=\"3\",type=\"tracepoint\",disp=\"keep\",enabled=\"y\",\[^\n\]+,func=\"main\"\[^\n\]+,installed=\"y\"" { # A tracepoint on main was defined in the stub, not in GDB, # so we should see a =breakpoint-created notification. pass $test } } # Tracepoint on marker is defined. After the sync, we know that # the tracepoint is in remote stub. Mark it 'installed'. set test "tracepoint on marker is installed" gdb_expect { -re "=breakpoint-modified,bkpt=\{number=\"2\".*,func=\"marker\".*installed=\"y\".*${mi_gdb_prompt}$" { pass "$test" } } # Check that tracepoint 1 is still pending. mi_gdb_test "-break-info 1" \ {.*\^done,BreakpointTable=.*addr=\"\".*} \ "break-info 1" set gdbserver_reconnect_p 0 } } # Test 'breakpoint-modified' notification is emited when pending tracepoints are # resolved. proc test_pending_resolved { } { with_test_prefix "pending resolved" { global decimal hex global executable global srcdir global subdir global binfile global lib_sl1 lib_sl2 global mi_gdb_prompt gdb_exit if [mi_gdb_start] { continue } mi_gdb_reinitialize_dir $srcdir/$subdir mi_gdb_load ${binfile} mi_load_shlibs $lib_sl1 $lib_sl2 # Create a pending tracepoint on pendfunc2 mi_gdb_test "-break-insert -a -f pendfunc2" \ {.*\^done,bkpt=.*addr=\"\".*} \ "insert breakpoint on pendfunc2" # Insert breakpoint on marker mi_gdb_test "-break-insert marker" {.*\^done,bkpt=.*} \ "insert breakpoint on marker" mi_run_cmd mi_expect_stop "breakpoint-hit" "marker" ""\ ".*" ".*" {"" "disp=\"keep\""} \ "continue to marker breakpoint" mi_gdb_test "-trace-start" {\^done} "trace start" mi_send_resuming_command "exec-continue" "continuing execution to marker 1" # It is expected to get two "=breakpoint-modified" notifications. # Pending tracepoint is resolved. set test "tracepoint on pendfunc2 resolved" gdb_expect { -re "=breakpoint-modified,bkpt=\{number=\"1\",type=\"tracepoint\".*.*times=\"0\".*installed=\"n\"" { pass "$test" } } # Resolved tracepoint is installed. set test "tracepoint on pendfunc2 installed" gdb_expect { -re "=breakpoint-modified,bkpt=\{number=\"1\",type=\"tracepoint\".*.*times=\"0\".*installed=\"y\"" { pass "$test" } } mi_expect_stop "breakpoint-hit" "marker" ".*" ".*" ".*" \ {"" "disp=\"keep\""} "continue to marker" mi_gdb_test "-trace-stop" {\^done,.*} "trace stop" mi_gdb_test "-trace-find frame-number 0" \ "-trace-find frame-number 0\r\n\\^done,found=\"1\",tracepoint=\"${decimal}\",traceframe=\"0\",frame=\{.*" \ "-trace-find frame-number 0" mi_gdb_test "-trace-find none" {\^done,found="0"} "back to live inferior" mi_send_resuming_command "exec-continue" "continuing to exit" set test "tracepoint on pendfunc2 becomes pending again" gdb_expect { -re ".*=breakpoint-modified,bkpt=\{number=\"1\",type=\"tracepoint\".*addr=\"\",.*times=\"0\"" { pass "$test" } -re ".*${mi_gdb_prompt}$" { fail $test } timeout { fail "$test (timeout)" } } mi_expect_stop "exited-normally" "" "" "" "" "" "" } } # Test target supports tracepoints or not. clean_restart $executable gdb_load_shlib $lib_sl1 gdb_load_shlib $lib_sl2 if ![runto_main] { fail "can't run to main to check for trace support" return -1 } if ![gdb_target_supports_trace] { unsupported "current target does not support trace" return -1 } gdb_exit test_reconnect test_pending_resolved return 0