binutils-gdb/gdb/testsuite/gdb.trace/infotrace.exp
Pedro Alves cce0ae568c gdb: Fix DUPLICATE and PATH regressions throughout
The previous patch to add -prompt/-lbl to gdb_test introduced a
regression: Before, you could specify an explicit empty message to
indicate you didn't want to PASS, like so:

  gdb_test COMMAND PATTERN ""

After said patch, gdb_test no longer distinguishes
no-message-specified vs empty-message, so tests that previously would
be silent on PASS, now started emitting PASS messages based on
COMMAND.  This in turn introduced a number of PATH/DUPLICATE
violations in the testsuite.

This commit fixes all the regressions I could see.

This patch uses the new -nopass feature introduced in the previous
commit, but tries to avoid it if possible.  Most of the patch fixes
DUPLICATE issues the usual way, of using with_test_prefix or explicit
unique messages.

See previous commit's log for more info.

In addition to looking for DUPLICATEs, I also looked for cases where
we would now end up with an empty message in gdb.sum, due to a
gdb_test being passed both no message and empty command.  E.g., this
in gdb.ada/bp_reset.exp:

 gdb_run_cmd
 gdb_test "" "Breakpoint $decimal, foo\\.nested_sub \\(\\).*"

was resulting in this in gdb.sum:

 PASS: gdb.ada/bp_reset.exp:

I fixed such cases by passing an explicit message.  We may want to
make such cases error out.

Tested on x86_64 GNU/Linux, native and native-extended-gdbserver.  I
see zero PATH cases now.  I get zero DUPLICATEs with native testing
now.  I still see some DUPLICATEs with native-extended-gdbserver, but
those were preexisting, unrelated to the gdb_test change.

Change-Id: I5375f23f073493e0672190a0ec2e847938a580b2
2022-05-25 13:44:12 +01:00

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# Copyright 1998-2022 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/>.
# This file was written by Michael Snyder (msnyder@cygnus.com)
load_lib "trace-support.exp"
gdb_exit
gdb_start
standard_testfile actions.c
if ![gdb_trace_common_supports_arch] {
unsupported "no trace-common.h support for arch"
return -1
}
if { [gdb_compile "$srcdir/$subdir/$srcfile" $binfile \
executable {debug nowarnings}] != "" } {
untested "failed to compile"
return -1
}
gdb_reinitialize_dir $srcdir/$subdir
# If testing on a remote host, download the source file.
# remote_download host $srcdir/$subdir/$srcfile
gdb_file_cmd $binfile
#
# test "info tracepoints" command
#
gdb_delete_tracepoints
set c_test_num [gdb_gettpnum gdb_c_test]
set asm_test_num [gdb_gettpnum gdb_asm_test]
if { $c_test_num <= 0 || $asm_test_num <= 0 } then {
fail "setting tracepoints"
return
}
# 2.1 info tracepoints (all)
gdb_test "info tracepoints" \
"Num Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+tracepoint keep y.* in gdb_c_test at .*$srcfile:\[0-9\]+.
\[\t \]+not installed on target.
\[0-9\]+\[\t \]+tracepoint keep y.* in gdb_asm_test at .*$srcfile:\[0-9\]+.
\[\t \]+not installed on target." \
"2.1: info tracepoints (all)"
# 2.2 info tracepoint (specific)
gdb_test "info tracepoint $c_test_num" \
"Num Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+tracepoint keep y.* in gdb_c_test at .*$srcfile:\[0-9\]+.
\[\t \]+not installed on target." \
"2.2a: info tracepoint $c_test_num (gdb_c_test)"
gdb_test "info tracepoint $asm_test_num" \
"Num Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+tracepoint keep y.* in gdb_asm_test at .*$srcfile:\[0-9\]+.
\[\t \]+not installed on target." \
"2.2b: info tracepoint $asm_test_num (gdb_asm_test)"
# 2.3 info tracepoint (invalid tracepoint number)
gdb_test "info tracepoint [expr $c_test_num + $asm_test_num]" \
"No tracepoint matching '[expr $c_test_num + $asm_test_num]'." \
"2.3: info tracepoint (invalid tracepoint number)"
# 2.4 info tracepoints (list of numbers)
gdb_test_multiple "info tracepoints $c_test_num $asm_test_num " \
"2.4: info trace rejects multiple tracepoint numbers" {
-re "Num Enb .*$gdb_prompt $" {
fail "2.4: info trace rejects multiple tracepoint numbers"
}
-re ".*$gdb_prompt $" {
pass "2.4: info trace rejects multiple tracepoint numbers"
}
}
# 2.5 help info trace
gdb_test "help info tracepoints" \
"Status of specified tracepoints .all tracepoints if no argument.*" \
"2.5: help info tracepoints"
# 2.6 info tracepoints (check trace buffer usage). We need a live
# tracing.
# Load the binary to the target too.
gdb_load $binfile
# Can't use runto_main here, because that would delete the tracepoints
# created above.
gdb_breakpoint "main"
gdb_trace_setactions "collect on tracepoint 1" "1" \
"collect gdb_struct1_test" "^$"
gdb_run_cmd
if {[gdb_test "" "Breakpoint ${decimal}, main.*" "run to main"] != 0} {
return -1
}
if { ![gdb_target_supports_trace] } then {
unsupported "current target does not support trace"
return 1
}
gdb_breakpoint "end" qualified
gdb_test_no_output "tstart"
gdb_test "continue" "Continuing\\.\[ \r\n\]+Breakpoint.*" \
"continue to end"
gdb_test_no_output "tstop"
gdb_test "tstatus"
gdb_test "info tracepoints" \
"Num Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+tracepoint keep y.* in gdb_c_test at .*$srcfile:\[0-9\]+.
\[\t \]+tracepoint already hit 1 time.
\[\t \]+trace buffer usage ${decimal} bytes.
\[\t \]+collect gdb_struct1_test.
\tinstalled on target.
\[0-9\]+\[\t \]+tracepoint keep y.* in gdb_asm_test at .*$srcfile:\[0-9\]+.
\tinstalled on target." \
"2.6: info tracepoints (trace buffer usage)"