135 lines
3.1 KiB
Plaintext
135 lines
3.1 KiB
Plaintext
# Copyright 2016 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 accessing "non-variable" variables, i.e., variables which are
|
|
# optimized to a constant DWARF location expression and/or
|
|
# partially/fully optimized out.
|
|
|
|
load_lib dwarf.exp
|
|
|
|
if {![dwarf2_support]} { return 0 }
|
|
|
|
standard_testfile main.c nonvar-access-dw.S
|
|
|
|
# Make some DWARF for the test.
|
|
set asm_file [standard_output_file $srcfile2]
|
|
|
|
Dwarf::assemble $asm_file {
|
|
cu {} {
|
|
compile_unit {
|
|
{DW_AT_name main.c}
|
|
} {
|
|
declare_labels int_type_label short_type_label
|
|
declare_labels struct_s_label struct_t_label
|
|
|
|
int_type_label: base_type {
|
|
{name "int"}
|
|
{encoding @DW_ATE_signed}
|
|
{byte_size 4 DW_FORM_sdata}
|
|
}
|
|
|
|
struct_s_label: structure_type {
|
|
{name s}
|
|
{byte_size 4 DW_FORM_sdata}
|
|
} {
|
|
member {
|
|
{name a}
|
|
{type :$int_type_label}
|
|
{data_member_location 0 DW_FORM_udata}
|
|
{bit_size 8 DW_FORM_udata}
|
|
}
|
|
member {
|
|
{name b}
|
|
{type :$int_type_label}
|
|
{data_bit_offset 8 DW_FORM_udata}
|
|
{bit_size 24 DW_FORM_udata}
|
|
}
|
|
}
|
|
|
|
struct_t_label: structure_type {
|
|
{name t}
|
|
{byte_size 4 DW_FORM_sdata}
|
|
} {
|
|
member {
|
|
{name a}
|
|
{type :$int_type_label}
|
|
{data_member_location 0 DW_FORM_udata}
|
|
{bit_size 9 DW_FORM_udata}
|
|
}
|
|
member {
|
|
{name b}
|
|
{type :$int_type_label}
|
|
{data_bit_offset 9 DW_FORM_udata}
|
|
{bit_size 23 DW_FORM_udata}
|
|
}
|
|
}
|
|
|
|
DW_TAG_subprogram {
|
|
{name main}
|
|
{DW_AT_external 1 flag}
|
|
{low_pc [gdb_target_symbol main] DW_FORM_addr}
|
|
{high_pc [gdb_target_symbol main]+0x10000 DW_FORM_addr}
|
|
} {
|
|
DW_TAG_variable {
|
|
{name undef_int}
|
|
{type :$int_type_label}
|
|
}
|
|
DW_TAG_variable {
|
|
{name undef_s}
|
|
{type :$struct_s_label}
|
|
}
|
|
DW_TAG_variable {
|
|
{name def_s}
|
|
{type :$struct_s_label}
|
|
{location {
|
|
const1u 0
|
|
stack_value
|
|
bit_piece 8 0
|
|
const1s -1
|
|
stack_value
|
|
bit_piece 24 0
|
|
} SPECIAL_expr}
|
|
}
|
|
DW_TAG_variable {
|
|
{name def_t}
|
|
{type :$struct_t_label}
|
|
{location {
|
|
const1u 0
|
|
stack_value
|
|
bit_piece 9 0
|
|
const1s -1
|
|
stack_value
|
|
bit_piece 23 0
|
|
} SPECIAL_expr}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if { [prepare_for_testing ${testfile}.exp ${testfile} \
|
|
[list $srcfile $asm_file] {nodebug}] } {
|
|
return -1
|
|
}
|
|
|
|
if ![runto_main] {
|
|
return -1
|
|
}
|
|
|
|
gdb_test "print def_s" " = \\{a = 0, b = -1\\}"
|
|
gdb_test "print def_t" " = \\{a = 0, b = -1\\}"
|
|
gdb_test "print undef_int" " = <optimized out>"
|
|
gdb_test "print undef_s.a" " = <optimized out>"
|