1 # Copyright 2010-2024 Free Software Foundation, Inc.
3 # This program is free software; you can redistribute it and/or modify
4 # it under the terms of the GNU General Public License as published by
5 # the Free Software Foundation; either version 3 of the License, or
6 # (at your option) any later version.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # You should have received a copy of the GNU General Public License
14 # along with this program. If not, see <http://www.gnu.org/licenses/>.
16 # Test single stepping over Thumb-2 IT blocks.
18 require {istarget arm*-*eabi*}
22 if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable debug] != "" } {
23 untested "failed to compile"
27 clean_restart $binfile
33 # Make sure that the compiler options allow Thumb-2.
34 gdb_test_multiple "list" "list main" {
35 -re ".*@ No Thumb-2.*$gdb_prompt $" {
37 untested "skipping tests due to lack of Thumb-2"
40 -re ".*@ Thumb-2 OK.*$gdb_prompt $" {
45 proc test_it_block { func } {
49 if { ! [gdb_breakpoint "*${func}"] } {
50 unresolved "$func, IT block tests"
54 gdb_test "call (int) ${func}()" "Breakpoint.*@ Setup.*" "$func, call"
62 set msg "$func, stepi $steps"
63 gdb_test_multiple "stepi" "$msg" {
64 -re ".*@ Setup.*$gdb_prompt $" {
68 -re ".*@ IT instruction, Expected == (\[0-9\]*)\r\n$gdb_prompt $" {
69 set expected $expect_out(1,string)
73 -re ".*@ Reached.*$gdb_prompt $" {
77 if { [regexp {@ Reached, Set ([^\r\n]*)\r\n} $expect_out(0,string) dummy change] } {
78 gdb_test "set $change" "" "$func, set $change"
81 -re ".*@ Not reached.*$gdb_prompt $" {
82 # An instruction in an IT block whose predicate is false when
83 # we reach it. If using software single step, we should not
85 if { $software_step } {
92 -re ".*@ Never reached.*$gdb_prompt $" {
93 # An instruction that should be branched over.
96 -re ".*@ Done.*$gdb_prompt $" {
98 if { $reached == $expected } {
99 pass "$func, correct instructions reached"
101 fail "$func, correct instructions reached"
103 if { [regexp {@ Done, Check ([^\r\n]*)\r\n} $expect_out(0,string) dummy check] } {
104 gdb_test "print $check" ".* = 1" "$func, $check"
115 gdb_test "continue" "" "$func, continue"
119 proc test_it_break { ndx } {
122 set line [gdb_get_line_number "@ Break ${ndx}"]
124 if { ! [gdb_breakpoint "${line}"] } {
125 unresolved "continue to breakpoint: test ${ndx}"
129 if { $software_step } {
130 gdb_continue_to_breakpoint "test ${ndx}" ".*@ Location ${ndx}.*"
132 gdb_continue_to_breakpoint "test ${ndx}" ".*@ Break ${ndx}.*"
136 # If we are using software single-stepping in GDB, then GDB will not
137 # stop at conditional instructions with a false predicate during stepi.
138 # If we are using a simulator or debug interface with hardware single
139 # step, then GDB will stop at such instructions.
140 if { [istarget arm*-linux*] } {
146 for { set i 1 } { $i <= 8 } { incr i } {
147 test_it_block it_${i}
150 gdb_breakpoint "*it_breakpoints"
151 gdb_test "call (int) it_breakpoints()" "Breakpoint.*"
152 for { set i 1 } { $i <= 7 } { incr i } {