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# Copyright 2021-2023 Free Software Foundation, Inc.
# This file is part of GDB.
# 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/>.
# Verify that we can debug a GPU program in a child after a (v)fork + exec.
load_lib rocm.exp
require allow_hipcc_tests
standard_testfile -execer.cpp -execee.cpp
set srcfile_execer "$srcfile"
set srcfile_execee "$srcfile2"
set binfile_execee "$binfile-execee"
# Compile two versions of execer, one that uses fork and one that uses vfork.
foreach_with_prefix fork_func { fork vfork } {
set opts [list additional_flags=-DFORK=$fork_func \
additional_flags=-DEXECEE="${::binfile_execee}"]
if {[build_executable "failed to prepare" ${::binfile}-execer-${fork_func} \
$srcfile_execer $opts]} {
return
}
}
if {[build_executable "failed to prepare" $binfile_execee $srcfile_execee \
{debug hip}]} {
return
}
proc do_test { detach-on-fork follow-fork-mode fork_func } {
# In this case, the parent can't execute, as it's blocked in
# vfork. Skip it.
if { ${detach-on-fork} == "off"
&& ${follow-fork-mode} == "parent"
&& ${fork_func} == "vfork" } {
return
}
with_rocm_gpu_lock {
clean_restart ${::binfile}-execer-${fork_func}
gdb_test_no_output "set detach-on-fork ${detach-on-fork}"
gdb_test_no_output "set follow-fork-mode ${follow-fork-mode}"
if { ${follow-fork-mode} == "parent" } {
runto break_here_execer allow-pending message
gdb_continue_to_end "continue parent to end" "continue" 1
if { ${detach-on-fork} == "off" } {
gdb_test "inferior 2" "Switching to inferior 2 .*"
gdb_continue_to_end "continue child to end" "continue" 1
}
} elseif { ${follow-fork-mode} == "child" } {
runto break_here_execee allow-pending message
gdb_continue_to_end "continue child to end" "continue" 1
if { ${detach-on-fork} == "off" } {
gdb_test "inferior 1" "Switching to inferior 1 .*"
gdb_continue_to_end "continue parent to end" "continue" 1
}
} else {
error "unexpected follow-fork-mode value: ${follow-fork-mode}"
}
}
}
foreach_with_prefix detach-on-fork { on off } {
foreach_with_prefix follow-fork-mode { parent child } {
foreach_with_prefix fork_func { fork vfork } {
do_test ${detach-on-fork} ${follow-fork-mode} $fork_func
}
}
}
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