| # This testcase is part of GDB, the GNU debugger. |
| # |
| # Copyright 2013-2024 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/>. |
| |
| # Check that GDB handles GDBserver disconnecting abruptly, in several |
| # scenarios. |
| |
| load_lib gdbserver-support.exp |
| |
| standard_testfile |
| |
| require allow_gdbserver_tests |
| |
| if { [build_executable "failed to prepare" ${testfile}] } { |
| return -1 |
| } |
| |
| # Spawn GDBserver, run to main, extract GDBserver's PID and save it in |
| # the SERVER_PID global. |
| |
| proc prepare {} { |
| global binfile gdb_prompt srcfile decimal |
| global server_pid |
| global GDBFLAGS |
| |
| save_vars { GDBFLAGS } { |
| # If GDB and GDBserver are both running locally, set the sysroot to avoid |
| # reading files via the remote protocol. |
| if { ![is_remote host] && ![is_remote target] } { |
| set GDBFLAGS "$GDBFLAGS -ex \"set sysroot\"" |
| } |
| |
| clean_restart $binfile |
| } |
| |
| # Make sure we're disconnected, in case we're testing with an |
| # extended-remote board, therefore already connected. |
| gdb_test "disconnect" ".*" |
| |
| gdbserver_run "" |
| |
| gdb_breakpoint ${srcfile}:[gdb_get_line_number "i = 0;"] |
| gdb_continue_to_breakpoint "after server_pid assignment" |
| |
| # Get the pid of GDBServer. |
| set server_pid 0 |
| gdb_test_multiple "p server_pid" "" { |
| -re -wrap " = ($decimal)" { |
| set server_pid $expect_out(1,string) |
| pass $gdb_test_name |
| } |
| } |
| |
| if {$server_pid == 0} { |
| return 0 |
| } |
| |
| return 1 |
| } |
| |
| # Kill GDBserver using the PID saved by prepare. |
| |
| proc kill_server {} { |
| global server_pid |
| |
| remote_exec target "kill -9 $server_pid" |
| } |
| |
| # Test issuing "tstatus" right after the connection is dropped. |
| |
| proc_with_prefix test_tstatus {} { |
| if ![prepare] { |
| return |
| } |
| |
| kill_server |
| |
| # Enable trace status packet which is disabled after the |
| # connection if the remote target doesn't support tracepoint at |
| # all. Otherwise, no RSP packet is sent out. |
| gdb_test \ |
| "set remote trace-status-packet on" \ |
| "Support for the 'qTStatus' packet on the current remote target is set to \"on\"." |
| |
| # Force GDB to talk with GDBserver, so that we can get the |
| # "connection closed" error. |
| gdb_test "tstatus" {Remote connection closed|Remote communication error\. Target disconnected: Connection reset by peer\.} |
| } |
| |
| # Test unwinding with no debug/unwind info, right after the connection |
| # is dropped. |
| |
| proc_with_prefix test_unwind_nosyms {} { |
| if ![prepare] { |
| return |
| } |
| |
| # Remove symbols, so that we try to unwind with one of the |
| # heuristic unwinders, and read memory from within its sniffer. |
| gdb_unload |
| |
| kill_server |
| |
| gdb_test "bt" "(Target disconnected|Remote connection closed|Remote communication error).*" |
| } |
| |
| # Test unwinding with debug/unwind info, right after the connection is |
| # dropped. |
| |
| proc_with_prefix test_unwind_syms {} { |
| if ![prepare] { |
| return |
| } |
| |
| kill_server |
| |
| gdb_test "bt" "(Target disconnected|Remote connection closed|Remote communication error).*" |
| } |
| |
| # Test performing a stepi right after the connection is dropped. |
| |
| proc_with_prefix test_stepi {} { |
| if ![prepare] { |
| return |
| } |
| |
| # Ensure GDB has computed the frame-id for the current frame |
| # before we kill the gdbserver. With the frame-id cached when we |
| # stepi below the first packets we try to send to gdbserver will |
| # be from within the breakpoint insertion process. |
| gdb_test "info frame" "Stack level 0, .*" |
| |
| kill_server |
| |
| gdb_test "stepi" "(Target disconnected|Remote connection closed|Remote communication error).*" |
| } |
| |
| test_tstatus |
| test_unwind_nosyms |
| test_unwind_syms |
| test_stepi |
| |