This replaces the exit(0) call by a shutdown request, ensuring a proper cleanup of Qemu. Otherwise, some connections could be broken without being correctly flushed.
Signed-off-by: Clément Chigot <chi...@adacore.com> --- gdbstub/gdbstub.c | 3 +-- gdbstub/softmmu.c | 13 +++++++++++++ gdbstub/user.c | 2 ++ 3 files changed, 16 insertions(+), 2 deletions(-) diff --git a/gdbstub/gdbstub.c b/gdbstub/gdbstub.c index 5f28d5cf57..358eed1935 100644 --- a/gdbstub/gdbstub.c +++ b/gdbstub/gdbstub.c @@ -1298,7 +1298,6 @@ static void handle_v_kill(GArray *params, void *user_ctx) gdb_put_packet("OK"); error_report("QEMU: Terminated via GDBstub"); gdb_exit(0); - exit(0); } static const GdbCmdParseEntry gdb_v_commands_table[] = { @@ -1818,7 +1817,7 @@ static int gdb_handle_packet(const char *line_buf) /* Kill the target */ error_report("QEMU: Terminated via GDBstub"); gdb_exit(0); - exit(0); + break; case 'D': { static const GdbCmdParseEntry detach_cmd_desc = { diff --git a/gdbstub/softmmu.c b/gdbstub/softmmu.c index f509b7285d..fa9b09537d 100644 --- a/gdbstub/softmmu.c +++ b/gdbstub/softmmu.c @@ -434,6 +434,19 @@ void gdb_exit(int code) } qemu_chr_fe_deinit(&gdbserver_system_state.chr, true); + + /* + * Shutdown request is a clean way to stop the QEMU, compared + * to a direct call to exit(). But we can't pass the exit code + * through it so avoid doing that when it can matter. + * As this function is also called during the cleanup process, + * avoid sending the request if one is already set. + */ + if (code) { + exit(code); + } else if (!qemu_shutdown_requested_get()) { + qemu_system_shutdown_request(SHUTDOWN_CAUSE_GUEST_SHUTDOWN); + } } /* diff --git a/gdbstub/user.c b/gdbstub/user.c index 5b375be1d9..f3d97d621f 100644 --- a/gdbstub/user.c +++ b/gdbstub/user.c @@ -113,6 +113,8 @@ void gdb_exit(int code) gdb_put_packet(buf); gdbserver_state.allow_stop_reply = false; } + + exit(code); } int gdb_handlesig(CPUState *cpu, int sig) -- 2.25.1