binutils-gdb/gdb/testsuite/gdb.cp/static-method.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 2011-2022 Free Software Foundation, Inc.
#
# Contributed by Red Hat, originally written by Keith Seitz.
#
# 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 is part of the gdb testsuite.
# A helper proc which sets a breakpoint at FUNC and attempts to
# run to the breakpoint.
proc test_breakpoint {func result} {
set DEC {[0-9]}
# Return to the top of the test function every time.
delete_breakpoints
if {![gdb_breakpoint test_function]} {
fail "set test_function breakpoint for $func"
} elseif {[gdb_test "continue" \
"Continuing.\r\n\r\nBreakpoint $DEC+,.*test_function.*" \
"continue to test_function for $func"] != 0} {
} else {
gdb_breakpoint "$func"
gdb_test "continue" \
"Continuing.\r\n\r\nBreakpoint $DEC+,.*$result.*" \
"continue to $func"
}
}
if {[skip_cplus_tests]} { return }
# Tests for c++/12750
standard_testfile .cc
if {[prepare_for_testing "failed to prepare" $testfile $srcfile {c++ debug}]} {
return -1
}
# The GDB workaround for GCC PR debug/45682 does not apply as it requires
# DW_AT_linkage_name of methods. The whole class A is in anonymous namespace,
# therefore not accessible outside of the CU (compilation unit) and therefore
# GCC does not produce DW_AT_linkage_name for such methods.
set have_gcc_45682_fixed 1
set test "info addr A::func()"
gdb_test_multiple $test $test {
-re "No symbol \"A::func\\(\\)\" in current context\\.\r\n$gdb_prompt $" {
pass $test
}
-re "Symbol \"A::func\\(\\)\" is a function at address .*\r\n$gdb_prompt $" {
setup_xfail gcc/45682 "*-*-*"
fail $test
set have_gcc_45682_fixed 0
}
}
if {![runto_main]} {
perror "couldn't run to breakpoint"
return
}
set ans {(anonymous namespace)}
set methods {}
lappend methods "xxx::${ans}::func"
lappend methods "xxx::${ans}::A::func"
gdb_test_no_output "set listsize 1" ""
foreach test $methods {
# The result we expect is the source code name of the symbol,
# i.e., without "(anonymous namespace)".
regsub -all [string_to_regexp "${ans}::"] $test "" expected
set result ".*// [string_to_regexp $expected]"
# Test whether the function/method can be "list"ed
# with the filename pre-pended.
if {[string compare $test "xxx::${ans}::A::func"] == 0
&& !$have_gcc_45682_fixed} {
setup_xfail gcc/45682 "*-*-*"
}
gdb_test "list ${srcfile}:$test" $result
if {[string compare $test "xxx::${ans}::A::func"] == 0
&& !$have_gcc_45682_fixed} {
setup_xfail gcc/45682 "*-*-*"
}
gdb_test "list '${srcfile}:$test'" $result
if {[string compare $test "xxx::${ans}::A::func"] == 0
&& !$have_gcc_45682_fixed} {
setup_xfail gcc/45682 "*-*-*"
}
gdb_test "list '${srcfile}':'$test'" $result
if {[string compare $test "xxx::${ans}::A::func"] == 0
&& !$have_gcc_45682_fixed} {
setup_xfail gcc/45682 "*-*-*"
}
gdb_test "list ${srcfile}:'$test'" $result
# Test setting and hitting a breakoint at the function/method.
test_breakpoint $test $expected
test_breakpoint "'$test'" $expected
}
gdb_exit
return 0