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# Copyright 2024-2025 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/>.
# Check that a symbol from an unused PU is not accessible.
load_lib dwarf.exp
# This test can only be run on targets which support DWARF-2 and use gas.
require dwarf2_support
standard_testfile main.c -dw.S
# Create the DWARF.
set asm_file [standard_output_file $srcfile2]
Dwarf::assemble $asm_file {
declare_labels partial_label int_label int_label2
cu {} {
compile_unit {{language @DW_LANG_C}} {
subprogram {
{MACRO_AT_func { main }}
}
}
}
cu {} {
partial_unit {} {
int_label: base_type {
{name int}
{byte_size 4 sdata}
{encoding @DW_ATE_signed}
}
constant {
{name the_int}
{type :$int_label}
{const_value 99 data1}
}
}
}
}
if { [prepare_for_testing "failed to prepare" $testfile \
[list $asm_file $srcfile] {nodebug}] } {
return -1
}
set cmd "p the_int"
set re \
[string_to_regexp \
{No symbol "the_int" in current context.}]
# Check that the unreferenced PU is not expanded.
gdb_test $cmd $re
# This should expand all CUs and referenced PUs, but not an unreferenced PU.
gdb_test_no_output "maint expand-symtabs"
# Flush the symbol cache to do a new symbol lookup.
gdb_test_no_output "maint flush symbol-cache"
# Check that the unreferenced PU is not expanded after "maint expand-symtabs".
gdb_test $cmd $re "$cmd, again"
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