gdb/testsuite/gdb.base/pie-fork.exp

# Copyright 2018-2020 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/>.

# Test that we can follow forks properly when the executable is
# position-independent.

standard_testfile

set opts [list debug additional_flags=-fPIE ldflags=-pie]

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

proc setup_test {detach_on_fork {follow_fork_mode "parent"}} {
    global binfile

    clean_restart ${binfile}

    if ![runto_main] {
	fail "can't run to main"
	return
    }

    gdb_test_no_output "set detach-on-fork ${detach_on_fork}"
    gdb_test_no_output "set follow-fork-mode ${follow_fork_mode}"

    gdb_breakpoint "break_here"
}

proc_with_prefix test_detach_on_fork_follow_parent {} {
    setup_test "on" "parent"

    gdb_test "continue" "\r\nBreakpoint 2, break_here.*"
}

proc_with_prefix test_detach_on_fork_follow_child {} {
    setup_test "on" "child"

    gdb_test "continue" "\r\nThread 2.1 .* hit Breakpoint 2, break_here.*"
}

proc_with_prefix test_no_detach_on_fork {} {
    setup_test "off"

    gdb_test "continue" "\r\nThread 1.1 .* hit Breakpoint 2, break_here.*"
    gdb_test "thread 2.1"
    gdb_test "continue" "\r\nThread 2.1 .* hit Breakpoint 2, break_here.*"
}

test_detach_on_fork_follow_parent
test_detach_on_fork_follow_child
test_no_detach_on_fork