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# Copyright 2012-2019 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 <http://www.gnu.org/licenses/>.
load_lib trace-support.exp
if {[skip_shlib_tests]} {
return 0
}
if ![gdb_trace_common_supports_arch] {
unsupported "no trace-common.h support for arch"
return -1
}
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=\"<PENDING>\".*} \
"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=\"<PENDING>\".*} \
"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 $lib_sl2
# Create a pending tracepoint on pendfunc2
mi_gdb_test "-break-insert -a -f pendfunc2" \
{.*\^done,bkpt=.*addr=\"<PENDING>\".*} \
"insert breakpoint on pendfunc2"
# Insert breakpoint on marker
mi_gdb_test "-break-insert marker" {.*\^done,bkpt=.*} \
"insert breakpoint on marker"
mi_run_cmd
mi_expect_stop "breakpoint-hit" "marker" ""\
".*" ".*" {"" "disp=\"keep\""} \
"continue to marker breakpoint"
mi_gdb_test "-trace-start" {\^done} "trace start"
mi_send_resuming_command "exec-continue" "continuing execution to marker 1"
# It is expected to get two "=breakpoint-modified" notifications.
# Pending tracepoint is resolved.
set test "tracepoint on pendfunc2 resolved"
gdb_expect {
-re "=breakpoint-modified,bkpt=\{number=\"1\",type=\"tracepoint\".*.*times=\"0\".*installed=\"n\"" {
pass "$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=\"<PENDING>\",.*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
|
