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# Copyright 2009-2025 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 multi-exec / multi-process features that work for all configurations,
# even ones that cannot run multiple processes simultaneously.
set testfile "multi-arch"
require allow_multi_inferior_tests
# The plain remote target can't do multiple inferiors.
require !use_gdb_stub
# The 64-bit compile may succeed for i386-linux, but gdb won't be able
# to load the file.
if [istarget "i?86-*linux*"] {
return
}
# Can't use standard_testfile, we want executables with specialized
# names.
set exec1 "ma-hello"
set srcfile1 hello.c
set binfile1 [standard_output_file ${exec1}]
set exec2 "ma-hangout"
set srcfile2 hangout.c
set binfile2 [standard_output_file ${exec2}]
# Build two executables, one for each arch.
if [istarget "s390*-*-*"] {
set march1 "-m64"
set march2 "-m31"
} elseif { [istarget "aarch64*-*-*"] } {
set march1 ""
set march2 ""
} else {
set march1 "-m64"
set march2 "-m32"
}
if { $march1 != "" } {
require "have_compile_and_link_flag $march1"
}
if { $march2 != "" } {
require "have_compile_and_link_flag $march2"
}
if { [build_executable "failed to prepare" ${exec1} "${srcfile1}" \
[list debug additional_flags=${march1}]] } {
return -1
}
set options [list debug]
if [istarget "aarch64*-*-*"] {
if {[arm_cc_for_target] != ""} {
lappend options "compiler=[arm_cc_for_target]"
} else {
unsupported "ARM compiler is not known"
return -1
}
} else {
lappend options "additional_flags=${march2}"
}
if { [build_executable "failed to prepare" ${exec2} "${srcfile2}" \
$options]} {
return -1
}
# Start inferior 1
clean_restart ${exec1}
if {![runto_main]} {
return
}
# Add and start inferior 2
gdb_test "add-inferior" "Added inferior 2.*" "add empty inferior 2"
gdb_test "inferior 2" "Switching to inferior 2.*" "switch to inferior 2"
gdb_load ${binfile2}
if {![runto_main]} {
return
}
# Check we do have two inferiors loaded.
gdb_test "info inferiors" \
"Executable.*${exec1}.*${exec2}.*"
# Now select inferior 2, and trigger an event in inferior 1. This
# tries to check that GDB doesn't incorrectly uses the architecture of
# inferior 2 when parsing the expedited registers in a stop reply for
# inferior 1 (when remote debugging).
gdb_test_no_output "set schedule-multiple on"
with_test_prefix "inf1 event with inf2 selected" {
gdb_test "inferior 2" "Switching to inferior 2.*thread 2\.1.*main.*${srcfile2}.*"
gdb_test "b hello_loop" "Breakpoint .* at .*${srcfile1}.*"
gdb_test "c" " hello_loop.*" "continue to hello_loop"
}
delete_breakpoints
# Same, but the other way around: select inferior 1 and trigger an
# event in inferior 2.
with_test_prefix "inf2 event with inf1 selected" {
gdb_test "inferior 1" "Switching to inferior 1.*thread 1\.1.*hello_loop.*${srcfile1}.*"
gdb_test "b hangout_loop" "Breakpoint .* at .*${srcfile2}.*"
gdb_test "c" " hangout_loop.*" "continue to hangout_loop"
}
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