binutils-gdb/gdb/testsuite/gdb.base/vdso-warning.exp

# Copyright 2012-2016 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/>.

standard_testfile

if { [prepare_for_testing "failed to prepare" ${testfile} $srcfile] } {
    return -1
}

gdb_breakpoint "main"

# At least some versions of Fedora/RHEL glibc have local patches that
# hide the vDSO.  This lines re-exposes it.  See PR libc/13097,
# comment 2.  There's no support for passing environment variables in
# the remote protocol, but that's OK -- if we're testing against a
# glibc that doesn't list the vDSO without this, the test should still
# pass.
gdb_test_no_output "set environment LD_DEBUG=unused"

gdb_run_cmd

set test "stop without warning"
gdb_test_multiple "" $test {
    -re "Could not load shared library symbols .*\r\n$gdb_prompt $" {
	fail $test
    }
    -re "\r\nBreakpoint \[0-9\]+, main .*\r\n$gdb_prompt $" {
	pass $test
    }
}

# Extra testing in case the warning changes and we miss updating the
# above.
set test "no vdso without symbols is listed"
gdb_test_multiple "info shared" $test {
    -re "No\[^\r\n\]+linux-(vdso|gate).*$gdb_prompt $" {
	fail $test
    }
    -re "$gdb_prompt $" {
	pass $test
    }
}