gdb/testsuite/gdb.dwarf2/info-locals-optimized-out.exp

# Copyright 2017-2021 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/>.

# Test that "info locals" shows optimized out variables.

load_lib dwarf.exp

# This test can only be run on targets which support DWARF-2 and use gas.
if {![dwarf2_support]} {
    return 0
}

standard_testfile main.c -dw.S

# Make some DWARF for the test.

set asm_file [standard_output_file $srcfile2]
Dwarf::assemble $asm_file {
    global dwarf_regnum regname srcfile

    set buf_var [gdb_target_symbol buf]

    cu {} {
	DW_TAG_compile_unit {
		{DW_AT_name $srcfile}
		{DW_AT_comp_dir /tmp}
	} {
	    declare_labels int_type_label

	    # int
	    int_type_label: base_type {
		{name "int"}
		{encoding @DW_ATE_signed}
		{byte_size 4 DW_FORM_sdata}
	    }

	    DW_TAG_subprogram {
		{MACRO_AT_func { main }}
		{DW_AT_external 1 flag}
	    } {
		# A variable completely optimized out.
		DW_TAG_variable {
		    {name "opt_out"}
		    {type :$int_type_label}
		}
	    }
	}
    }
}

if { [prepare_for_testing ${testfile}.exp ${testfile} \
	  [list $srcfile $asm_file] {nodebug}] } {
    return -1
}

if ![runto_main] {
    return -1
}

# Make sure "info locals" shows optimized out variables.
gdb_test "info locals" ".*opt_out = <optimized out>.*" "info local shows optimized out variable"