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# Copyright 2011-2016 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 additional_flags [gdb_target_symbol_prefix_flags]
if [prepare_for_testing $expfile $executable $srcfile \
[list debug $additional_flags]] {
untested "failed to prepare for trace tests"
return -1
}
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
}
set libipa [get_in_proc_agent]
gdb_load_shlibs $libipa
# Can't use prepare_for_testing, because that splits compiling into
# building objects and then linking, and we'd fail with "linker input
# file unused because linking not done" when building the object.
if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
executable [list debug $additional_flags shlib=$libipa] ] != "" } {
untested "failed to compile ftrace tests"
return -1
}
clean_restart ${executable}
if ![runto_main] {
fail "Can't run to main for ftrace tests"
return 0
}
if { [gdb_test "info sharedlibrary" ".*${libipa}.*" "IPA loaded"] != 0 } {
untested "Could not find IPA lib loaded"
return 1
}
proc test_tracepoints { trace_command condition num_frames { kfail_proc 0 } } {
global executable gdb_prompt
clean_restart ${executable}
if ![runto_main] {
fail "Can't run to main for ftrace tests"
return 0
}
gdb_test "break begin" ".*" ""
gdb_test "break end" ".*" ""
with_test_prefix "${trace_command}: ${condition}" {
gdb_test "${trace_command} set_point if ${condition}" \
"\(Fast t|T\)racepoint .*" \
"set tracepoint"
gdb_test "continue" ".*Breakpoint \[0-9\]+, begin .*" \
"advance to trace begin"
gdb_test_no_output "tstart" "start trace experiment"
gdb_test_multiple "continue" "advance through tracing" {
-re ".*Breakpoint \[0-9\]+, end .*$gdb_prompt $" {
pass "advance through tracing"
}
-re "Program received signal SIGSEGV, Segmentation fault\\..*$gdb_prompt $" {
if { $kfail_proc != 0 } {
$kfail_proc $trace_command
}
fail "advance through tracing"
}
}
if { $kfail_proc != 0 } {
$kfail_proc $trace_command
}
gdb_test "tstatus" \
".*Trace .*Collected $num_frames .*" \
"check $num_frames frames were collected."
gdb_test "tstop" "" ""
}
}
# These callbacks identify known failures for certain architectures. They
# are called either if GDBserver crashes or has not traced the correct
# number of frames.
proc 18955_x86_64_failure { trace_command } {
if { $trace_command == "ftrace" } {
setup_kfail "gdb/18955" "x86_64-*-linux*"
}
}
proc 18955_i386_failure { trace_command } {
if { $trace_command == "ftrace" } {
setup_kfail "gdb/18955" "i\[34567\]86-*-*"
}
}
foreach trace_command { "trace" "ftrace" } {
# This condition is always true as the PC should be set to the tracepoint
# address when hit.
test_tracepoints $trace_command "\$$pcreg == *set_point" 10
# Can we read local variables?
test_tracepoints $trace_command "anarg == 100 || anarg == 200" 2 18955_x86_64_failure
# Can we read global variables?
test_tracepoints $trace_command "anarg == 100 && globvar == 1" 1 18955_x86_64_failure
# Test various operations to cover as many opcodes as possible.
test_tracepoints $trace_command "21 + 21 == 42" 10
test_tracepoints $trace_command "42 - 21 == 21" 10
test_tracepoints $trace_command "21 * 2 == 42" 10
test_tracepoints $trace_command "21 << 1 == 42" 10
test_tracepoints $trace_command "42 >> 1 == 21" 10
test_tracepoints $trace_command "-(21 << 1) == -42" 10
test_tracepoints $trace_command "-42 >> 1 == -21" 10
test_tracepoints $trace_command "(0xabababab & 0x0000ffff) == 0xabab" 10
test_tracepoints $trace_command "(0xabababab | 0x0000ffff) == 0xababffff" 10
test_tracepoints $trace_command "(0xaaaaaaaa ^ 0x55555555) == 0xffffffff" 10
test_tracepoints $trace_command "~0xaaaaaaaa == 0x55555555" 10
test_tracepoints $trace_command "21 < 42" 10
test_tracepoints $trace_command "42 <= 42" 10
test_tracepoints $trace_command "42 >= 42" 10
test_tracepoints $trace_command "42 > 21" 10
test_tracepoints $trace_command "(21 < 42 ? 0 : 1) == 0" 10 18955_i386_failure
test_tracepoints $trace_command "(42 <= 42 ? 0 : 1) == 0" 10
test_tracepoints $trace_command "(42 >= 42 ? 0 : 1) == 0" 10
test_tracepoints $trace_command "(42 > 21 ? 0 : 1) == 0" 10 18955_i386_failure
test_tracepoints $trace_command "\$trace_timestamp >= 0" 10
}
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