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# Copyright 2015-2016 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
set executable $testfile
set expfile $testfile.exp
# Some targets have leading underscores on assembly symbols.
set options [list debug [gdb_target_symbol_prefix_flags]]
# Check that the target supports trace.
if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile executable $options] != "" } {
untested "couldn't compile test program"
return -1
}
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 "target does not support trace"
return -1
}
# Compile the test case with the in-process agent library.
set libipa [get_in_proc_agent]
gdb_load_shlib $libipa
lappend options shlib=$libipa
if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile executable $options] != "" } {
untested "couldn't compile test program with in-process agent library"
return -1
}
# This test makes sure that disabling and enabling tracepoints works
# correctly. TRACEPOINT_CMD is the command used to set tracepoints
# (e.g. trace or ftrace).
proc test_tracepoint_enable_disable { tracepoint_cmd } {
with_test_prefix "test_tracepoint_enable_disable $tracepoint_cmd" {
global executable
clean_restart ${executable}
set expected 0
if ![runto_main] {
fail "can't run to main."
return -1
}
gdb_test "$tracepoint_cmd point_a" "(Tracepoint|Fast tracepoint) 2.*"
gdb_test "$tracepoint_cmd point_b" "(Tracepoint|Fast tracepoint) 3.*"
gdb_breakpoint "break_here"
gdb_test_no_output "tstart"
# Test that tracepoints start enabled
with_test_prefix "start" {
gdb_continue "break_here"
incr expected 2
gdb_test "tstatus" "Collected $expected trace frames.*"
}
# Test that disabling works
with_test_prefix "disable #1" {
gdb_test_no_output "disable 2"
gdb_continue "break_here"
incr expected 1
gdb_test "tstatus" "Collected $expected trace frames.*"
}
with_test_prefix "disable #2" {
gdb_test_no_output "disable 3"
gdb_continue "break_here"
gdb_test "tstatus" "Collected $expected trace frames.*"
}
# Test that disabling an already disabled tracepoint works
with_test_prefix "disable #3" {
gdb_test_no_output "disable 2"
gdb_continue "break_here"
gdb_test "tstatus" "Collected $expected trace frames.*"
}
# Test that enabling works
with_test_prefix "enable #1" {
gdb_test_no_output "enable 2"
gdb_continue "break_here"
incr expected 1
gdb_test "tstatus" "Collected $expected trace frames.*"
}
with_test_prefix "enable #2" {
gdb_test_no_output "enable 3"
gdb_continue "break_here"
incr expected 2
gdb_test "tstatus" "Collected $expected trace frames.*"
}
# Test that enabling an already enabled tracepoint works
with_test_prefix "enable #3" {
gdb_test_no_output "enable 3"
gdb_continue "break_here"
incr expected 2
gdb_test "tstatus" "Collected $expected trace frames.*"
}
}
}
test_tracepoint_enable_disable trace
test_tracepoint_enable_disable ftrace
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