gdb/testsuite/gdb.threads/fork-child-threads.exp

# Copyright (C) 2008-2021 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/>.

# Only GNU/Linux is known to support `set follow-fork-mode child'.
if { ! [istarget "*-*-linux*"] } {
    return 0
}

standard_testfile

if {[gdb_compile_pthreads "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
    return -1
}

clean_restart ${binfile}

if ![runto_main] then {
   return 0
}

gdb_test "set follow-fork-mode child"
gdb_breakpoint "start"

# Make sure we can step over fork without losing our breakpoint.
gdb_test "next" ".*pthread_create \\(&thread, NULL, start, NULL\\);.*" "next over fork"

gdb_test "continue" "Breakpoint 2, start.*" "get to the spawned thread"

# Wrong:
# * 2 LWP 4466  start (arg=0x0) at fork-child-threads.c:28
# Correct:
# * 3 Thread 0x40a00950 (LWP 5553)  start (arg=0x0) at ../.././gdb/testsuite/gdb.threads/fork-child-threads.c:28
#   2 Thread 0x2aaaaaac3000 (LWP 5552)  0x00000031674076dd in pthread_join (threadid=<optimized out>, thread_return=<optimized out>) at pthread_join.c:89

gdb_test "info threads" " Thread .* Thread .*" "two threads found"