1# Copyright 2012-2020 Free Software Foundation, Inc. 2 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. 7# 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. 12# 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/>. 15 16# Test "set debug expr 1" on c expressions. 17 18# Test relies on checking gdb debug output. Do not run if gdb debug is 19# enabled as any debug will be redirected to the log. 20if [gdb_debug_enabled] { 21 untested "debug is enabled" 22 return 0 23} 24 25standard_testfile .c 26 27if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug}]} { 28 return -1 29} 30 31if ![runto_main] { 32 fail "run to main" 33 return -1 34} 35 36# Test whether the expression debug machinery accepts the expression. 37 38proc test_debug_expr { cmd output } { 39 global gdb_prompt 40 41 gdb_test_multiple $cmd "" { 42 -re ".*Invalid expression.*\r\n$gdb_prompt $" { 43 fail $cmd 44 } 45 -re ".*\[\r\n\]$output\r\n$gdb_prompt $" { 46 pass $cmd 47 } 48 } 49} 50 51for { set i 0 } { $i < 4 } { incr i } { 52 gdb_test_no_output "set variable array\[$i\] = $i" 53} 54 55gdb_test_no_output "set debug expression 1" 56 57# This caused gdb to segfault. 58test_debug_expr "print /x {char\[4\]} array" \ 59 "\[$\]$decimal = \\{0x0, 0x1, 0x2, 0x3\\}" 60 61# This caused gdb to output garbage and possibly segfault 62gdb_test "print \"hello\"" \ 63 ".*OP_STRING\[^\r\n\]*Language-specific string type: 0.*\[\r\n\]\\$$decimal = \"hello\"\[\r\n\].*" \ 64 "string evaluation with debug expr" 65