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# Copyright 2013-2016 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
standard_testfile
if {[prepare_for_testing "failed to prepare" $testfile $srcfile debug]} {
return -1
}
proc test_actions_changed { } {
gdb_breakpoint "end"
gdb_test "trace subr" "Tracepoint .*" \
"tracepoint at subr"
# The first set of tests are regression tests for a GDB bug where
# the while-stepping count of a tracepoint would be left stale if
# the tracepoint's actions were redefined, and the new action list
# had no while-stepping action.
# First pass, define simple action.
with_test_prefix "1" {
gdb_trace_setactions "define simple action" \
"" \
"collect parm" "^$"
gdb_test_no_output "tstart"
gdb_test "continue" ".*Breakpoint \[0-9\]+, end \\(i=1\\) .*" \
"advance through tracing"
gdb_test "tstatus" ".*Collected 1 trace frame.*" \
"collected 1 trace frame"
gdb_test_no_output "tstop"
}
# Redefine action, run second trace.
with_test_prefix "2" {
gdb_trace_setactions "redefine simple action" \
"" \
"collect keeping, busy" "^$"
gdb_test_no_output "tstart"
gdb_test "continue" ".*Breakpoint \[0-9\]+, end \\(i=2\\) .*" \
"advance through tracing"
gdb_test "tstatus" ".*Collected 1 trace frame.*" \
"collected 1 trace frame"
gdb_test_no_output "tstop"
}
# Redefine to stepping action, run third trace.
with_test_prefix "3" {
gdb_trace_setactions "redefine to stepping action" \
"" \
"collect parm" "^$" \
"while-stepping 5" "^$" \
"collect parm" "^$" \
"end" "^$"
gdb_test_no_output "tstart"
gdb_test "continue" ".*Breakpoint \[0-9\]+, end \\(i=3\\) .*" \
"advance through tracing"
gdb_test "tstatus" ".*Collected 6 trace frames.*" \
"collected 6 trace frames"
gdb_test_no_output "tstop"
}
# Redefine to non-stepping, run fourth trace.
with_test_prefix "4" {
gdb_trace_setactions "redefine to non-stepping action" \
"" \
"collect parm" "^$"
gdb_test_no_output "tstart"
gdb_test "continue" ".*Breakpoint \[0-9\]+, end \\(i=4\\) .*" \
"advance through tracing"
gdb_test "tstatus" ".*Collected 1 trace frame.*" \
"collected 1 trace frame"
gdb_test_no_output "tstop"
}
# The following tests are related to the above, but use two
# tracepoints. They are regression tests for a GDB bug where only
# the first tracepoint would end up with the step count set.
# Store the first tracepoint's number.
gdb_test_no_output "set \$prev_tpnum=\$tpnum" "store previous \$tpnum"
# And here's the second tracepoint.
gdb_test "trace subr2" "Tracepoint .*" "tracepoint at subr2"
# Set a stepping action in both tracepoints, with the "commands"
# command.
with_test_prefix "5" {
gdb_trace_setcommands \
"redefine 2 tracepoints to stepping action, using commands" \
"\$prev_tpnum-\$tpnum" \
"collect parm" "^$" \
"while-stepping 5" "^$" \
"collect parm" "^$" \
"end" "^$"
gdb_test_no_output "tstart"
gdb_test "continue" ".*Breakpoint \[0-9\]+, end \\(i=5\\) .*" \
"advance through tracing"
gdb_test "tstatus" ".*Collected 12 trace frames.*" \
"collected 12 trace frames"
gdb_test_no_output "tstop"
}
# Redefine the actions of both tracepoints to non-stepping, also
# using the "commands" command.
with_test_prefix "6" {
gdb_trace_setcommands \
"redefine 2 tracepoints to non-stepping action, using commands" \
"\$prev_tpnum-\$tpnum" \
"collect parm" "^$"
gdb_test_no_output "tstart"
gdb_test "continue" ".*Breakpoint \[0-9\]+, end \\(i=6\\) .*" \
"advance through tracing"
gdb_test "tstatus" ".*Collected 2 trace frame.*" \
"collected 2 trace frames"
gdb_test_no_output "tstop"
}
}
# Check whether the target supports tracepoints.
clean_restart $testfile
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
}
test_actions_changed
return 0
|
