Add test case for tracepoints with conditions
This patch adds a test case for tracepoints with a condition expression. Each case will test a condition against the number of frames that should have been traced. Some of these tests fail on x86_64 and others on i386, which have been marked as known failures for now, see PR/18955. gdb/testsuite/ChangeLog: 2015-09-17 Pierre Langlois <pierre.langlois@arm.com> Yao Qi <yao.qi@linaro.org> * gdb.trace/trace-condition.c: New file. * gdb.trace/trace-condition.exp: New file.
This commit is contained in:
Pierre Langlois
Yao Qi
parent
c785244dd4
commit
43691ca179
3 changed files with 240 additions and 0 deletions
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@ -1,3 +1,9 @@
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2015-09-17 Pierre Langlois <pierre.langlois@arm.com>
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Yao Qi <yao.qi@linaro.org>
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* gdb.trace/trace-condition.c: New file.
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* gdb.trace/trace-condition.exp: New file.
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2015-09-16 Wei-cheng Wang <cole945@gmail.com>
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* gdb.trace/ftrace.exp: (test_ftrace_condition) New function
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66
gdb/testsuite/gdb.trace/trace-condition.c
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66
gdb/testsuite/gdb.trace/trace-condition.c
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/* This testcase is part of GDB, the GNU debugger.
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Copyright 2011-2015 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifdef SYMBOL_PREFIX
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#define SYMBOL(str) SYMBOL_PREFIX #str
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#else
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#define SYMBOL(str) #str
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#endif
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int globvar;
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static void
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begin (void)
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{
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}
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/* Called from asm. */
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static void __attribute__((used))
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func (void)
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{
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}
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static void
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marker (int anarg)
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{
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/* `set_point' is the label at which to set a fast tracepoint. The
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insn at the label must be large enough to fit a fast tracepoint
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jump. */
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asm (" .global " SYMBOL (set_point) "\n"
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SYMBOL (set_point) ":\n"
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#if (defined __x86_64__ || defined __i386__)
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" call " SYMBOL (func) "\n"
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#endif
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);
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}
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static void
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end (void)
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{
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}
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int
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main ()
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{
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begin ();
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for (globvar = 1; globvar < 11; ++globvar)
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marker (globvar * 100);
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end ();
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return 0;
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}
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168
gdb/testsuite/gdb.trace/trace-condition.exp
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168
gdb/testsuite/gdb.trace/trace-condition.exp
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# Copyright 2011-2015 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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load_lib "trace-support.exp"
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standard_testfile
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set executable $testfile
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set expfile $testfile.exp
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# Some targets have leading underscores on assembly symbols.
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set additional_flags [gdb_target_symbol_prefix_flags]
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if [is_amd64_regs_target] {
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set pcreg "\$rip"
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} elseif [is_x86_like_target] {
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set pcreg "\$eip"
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} else {
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set pcreg "\$pc"
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}
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if [prepare_for_testing $expfile $executable $srcfile \
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[list debug $additional_flags]] {
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untested "failed to prepare for trace tests"
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return -1
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}
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if ![runto_main] {
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fail "Can't run to main to check for trace support"
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return -1
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}
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if ![gdb_target_supports_trace] {
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unsupported "target does not support trace"
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return -1
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}
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set libipa [get_in_proc_agent]
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gdb_load_shlibs $libipa
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# Can't use prepare_for_testing, because that splits compiling into
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# building objects and then linking, and we'd fail with "linker input
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# file unused because linking not done" when building the object.
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if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
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executable [list debug $additional_flags shlib=$libipa] ] != "" } {
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untested "failed to compile ftrace tests"
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return -1
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}
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clean_restart ${executable}
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if ![runto_main] {
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fail "Can't run to main for ftrace tests"
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return 0
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}
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if { [gdb_test "info sharedlibrary" ".*${libipa}.*" "IPA loaded"] != 0 } {
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untested "Could not find IPA lib loaded"
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return 1
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}
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proc test_tracepoints { trace_command condition num_frames { kfail_proc 0 } } {
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global executable gdb_prompt
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clean_restart ${executable}
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if ![runto_main] {
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fail "Can't run to main for ftrace tests"
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return 0
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}
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gdb_test "break begin" ".*" ""
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gdb_test "break end" ".*" ""
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with_test_prefix "${trace_command}: ${condition}" {
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gdb_test "${trace_command} set_point if ${condition}" \
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"\(Fast t|T\)racepoint .*" \
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"set tracepoint"
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gdb_test "continue" ".*Breakpoint \[0-9\]+, begin .*" \
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"advance to trace begin"
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gdb_test_no_output "tstart" "start trace experiment"
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gdb_test_multiple "continue" "advance through tracing" {
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-re ".*Breakpoint \[0-9\]+, end .*$gdb_prompt $" {
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pass "advance through tracing"
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}
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-re "Program received signal SIGSEGV, Segmentation fault\\..*$gdb_prompt $" {
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if { $kfail_proc != 0 } {
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$kfail_proc $trace_command
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}
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fail "advance through tracing"
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}
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}
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if { $kfail_proc != 0 } {
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$kfail_proc $trace_command
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}
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gdb_test "tstatus" \
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".*Trace .*Collected $num_frames .*" \
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"check $num_frames frames were collected."
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gdb_test "tstop" "" ""
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}
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}
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# These callbacks identify known failures for certain architectures. They
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# are called either if GDBserver crashes or has not traced the correct
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# number of frames.
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proc 18955_x86_64_failure { trace_command } {
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if { $trace_command == "ftrace" } {
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setup_kfail "gdb/18955" "x86_64-*-linux*"
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}
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}
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proc 18955_i386_failure { trace_command } {
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if { $trace_command == "ftrace" } {
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setup_kfail "gdb/18955" "i\[34567\]86-*-*"
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}
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}
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foreach trace_command { "trace" "ftrace" } {
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# This condition is always true as the PC should be set to the tracepoint
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# address when hit.
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test_tracepoints $trace_command "$pcreg == *set_point" 10
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# Can we read local variables?
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test_tracepoints $trace_command "anarg == 100 || anarg == 200" 2 18955_x86_64_failure
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# Can we read global variables?
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test_tracepoints $trace_command "anarg == 100 && globvar == 1" 1 18955_x86_64_failure
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# Test various operations to cover as many opcodes as possible.
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test_tracepoints $trace_command "21 + 21 == 42" 10
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test_tracepoints $trace_command "21 - 21 == 0" 10
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test_tracepoints $trace_command "21 * 2 == 42" 10
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test_tracepoints $trace_command "21 << 1 == 42" 10
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test_tracepoints $trace_command "42 >> 1 == 21" 10
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test_tracepoints $trace_command "-21 << 1 == -42" 10
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test_tracepoints $trace_command "-42 >> 1 == -21" 10
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test_tracepoints $trace_command "(0xabababab & 0x0000ffff) == 0xabab" 10
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test_tracepoints $trace_command "(0xabababab | 0x0000ffff) == 0xababffff" 10
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test_tracepoints $trace_command "(0xaaaaaaaa ^ 0x55555555) == 0xffffffff" 10
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test_tracepoints $trace_command "~0xaaaaaaaa == 0x55555555" 10
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test_tracepoints $trace_command "21 < 42" 10
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test_tracepoints $trace_command "42 <= 42" 10
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test_tracepoints $trace_command "42 >= 42" 10
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test_tracepoints $trace_command "42 > 21" 10
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test_tracepoints $trace_command "(21 < 42 ? 0 : 1) == 0" 10 18955_i386_failure
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test_tracepoints $trace_command "(42 <= 42 ? 0 : 1) == 0" 10
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test_tracepoints $trace_command "(42 >= 42 ? 0 : 1) == 0" 10
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test_tracepoints $trace_command "(42 > 21 ? 0 : 1) == 0" 10 18955_i386_failure
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test_tracepoints $trace_command "\$trace_timestamp >= 0" 10
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}
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