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- # Copyright 2010-2022 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/>.
- load_lib dwarf.exp
- # Test some DWARF piece operators.
- # This test can only be run on targets which support DWARF-2 and use gas.
- if {![dwarf2_support]} {
- return 0
- }
- # This test can only be run on x86 targets.
- if {![is_x86_like_target]} {
- return 0
- }
- standard_testfile .S
- set csrcfile ${testfile}.c
- if {[prepare_for_testing "failed to prepare" ${testfile} $srcfile]} {
- return -1
- }
- if ![runto_main] {
- return -1
- }
- # Function f1 tests a particular gdb bug involving DW_OP_piece.
- proc pieces_test_f1 {} {
- global csrcfile
- set line [gdb_get_line_number "f1 breakpoint" $csrcfile]
- gdb_test "break pieces.c:$line" "Breakpoint 2.*" \
- "set f1 breakpoint for pieces"
- gdb_continue_to_breakpoint "continue to f1 breakpoint for pieces"
- gdb_test "print a" " = {i = 4, j = 14}" "print a in pieces:f1"
- gdb_test "print a.j" " = 14" "print a.j in pieces:f1"
- }
- # Function f2 tests for a bug when indexing into an array created
- # using DW_OP_piece.
- proc pieces_test_f2 {} {
- global csrcfile
- set line [gdb_get_line_number "f2 breakpoint" $csrcfile]
- gdb_test "break pieces.c:$line" "Breakpoint 3.*" \
- "set f2 breakpoint for pieces"
- gdb_continue_to_breakpoint "continue to f2 breakpoint for pieces"
- gdb_test "print a" " = .4, 14." "print a in pieces:f2"
- gdb_test "print a\[0\]" " = 4" "print a\[0\] in pieces:f2"
- gdb_test "print a\[1\]" " = 14" "print a\[1\] in pieces:f2"
- }
- # Function f3 tests DW_OP_bit_piece.
- proc pieces_test_f3 {} {
- global csrcfile
- set line [gdb_get_line_number "f3 breakpoint" $csrcfile]
- gdb_test "break pieces.c:$line" "Breakpoint 4.*" \
- "set f3 breakpoint for pieces"
- gdb_continue_to_breakpoint "continue to f3 breakpoint for pieces"
- gdb_test "print a.i" " = 4" "print a.i in pieces:f3"
- gdb_test "print a.j" " = 14" "print a.j in pieces:f3"
- gdb_test "print a.i = 7" " = 7" "set a.i in pieces:f3"
- gdb_test "print a.i" " = 7" "print new a.i in pieces:f3"
- }
- # Function f6 tests for an empty DW_OP_piece.
- proc pieces_test_f6 {} {
- global csrcfile
- set line [gdb_get_line_number "f6 breakpoint" $csrcfile]
- gdb_test "break pieces.c:$line" "Breakpoint 5.*" \
- "set f6 breakpoint for pieces"
- gdb_continue_to_breakpoint "continue to f6 breakpoint for pieces"
- gdb_test "print a" \
- " = {i = 7, j = 8, q = .optimized out.}" \
- "print a with optimized out piece"
- # Note: no warning for this case.
- gdb_test_multiple "print a.i" \
- "print a.i with optimized out piece" {
- -re "warning: some bits in computed object" {
- fail "print a.i with optimized out piece"
- }
- -re " = 7" {
- pass "print a.i with optimized out piece"
- }
- }
- }
- pieces_test_f1
- pieces_test_f2
- pieces_test_f3
- pieces_test_f6
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