1# This testcase is part of GDB, the GNU debugger. 2 3# Copyright 2016-2020 Free Software Foundation, Inc. 4 5# This program is free software; you can redistribute it and/or modify 6# it under the terms of the GNU General Public License as published by 7# the Free Software Foundation; either version 3 of the License, or 8# (at your option) any later version. 9# 10# This program is distributed in the hope that it will be useful, 11# but WITHOUT ANY WARRANTY; without even the implied warranty of 12# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13# GNU General Public License for more details. 14# 15# You should have received a copy of the GNU General Public License 16# along with this program. If not, see <http://www.gnu.org/licenses/>. 17 18# Test GDB's ability to properly connect to GDBserver with no pre-opened 19# symbol file. If GDB is buggy, it will drop the connection when 20# it attempts to open the symbol file indicated by GDBserver and fails. 21# 22# This test is only meaningful for standard remote connections. 23 24load_lib gdbserver-support.exp 25 26standard_testfile 27 28if { [skip_gdbserver_tests] } { 29 return 0 30} 31 32if { [prepare_for_testing "failed to prepare" $testfile $srcfile debug] } { 33 return -1 34} 35 36# Test connecting GDB to GDBserver without loading a symbol file. 37# 38# SYSROOT is the desired sysroot string 39# 40# ACTION is the action to perform to the symbol file on the target. 41# It can be either "permission" to deny access to the file or "delete" 42# to remove the file. 43# 44proc connect_no_symbol_file { sysroot action } { 45 global binfile 46 47 with_test_prefix "setup" { 48 # Copy the symbol file to the target. 49 gdb_remote_download target $binfile.bak $binfile 50 51 # Make sure we're disconnected, in case we're testing with an 52 # extended-remote board, therefore already connected. 53 gdb_test "disconnect" ".*" 54 55 # Discard any symbol files that we have opened. 56 gdb_test "file" ".*" "discard symbol table" \ 57 {Discard symbol table from `.*'\? \(y or n\) } "y" 58 59 # Set sysroot to something non-target and possibly also invalid so that 60 # GDB is unable to open the symbol file. 61 gdb_test_no_output "set sysroot $sysroot" "adjust sysroot" 62 63 set target_exec [gdbserver_download_current_prog] 64 65 # Start GDBserver. 66 set res [gdbserver_start "" $target_exec] 67 68 set gdbserver_protocol [lindex $res 0] 69 set gdbserver_gdbport [lindex $res 1] 70 71 # Perform test actions to the symbol file on the target. 72 if { $action == "delete" } then { 73 remote_file target delete $binfile 74 } elseif { $action == "permission" } { 75 remote_spawn target "chmod 000 $binfile" 76 } 77 78 # Connect to GDBserver. 79 gdb_target_cmd $gdbserver_protocol $gdbserver_gdbport 80 } 81 82 # Check if GDB succeeded connecting to GDBserver by attempting to detach 83 # from the process. 84 gdb_test "detach" \ 85 ".*Detaching from program: , process.*Ending remote debugging.*" \ 86 "connection to GDBserver succeeded" 87} 88 89# Make sure we have the original symbol file in a safe place to copy from. 90gdb_remote_download host $binfile $binfile.bak 91 92# Run the test with different permutations. 93foreach_with_prefix sysroot {"" "target:"} { 94 foreach_with_prefix action {"permission" "delete"} { 95 connect_no_symbol_file $sysroot $action 96 } 97} 98