GDB：检查目标扩展远程本地主机：3333在命令文件中是否成功

Question

我有一个简单的gdb命令文件：

set pagination off
set logging file ../log/buildlog.txt
set logging on
info breakpoints
set remotetimeout 3
target extended-remote localhost:3333 arg1
load
monitor reset
set logging off
quit

我想添加以下内容：

set pagination off
set logging file ../log/buildlog.txt
set logging on
info breakpoints
set remotetimeout 3
if ("target extended-remote localhost:3333 arg1")
    echo Succeeded
else
    quit
end
load
monitor reset
set logging off
quit

我尝试通过bash这样操作：

if [ $(arm-none-eabi-gdb -x "../build/gdbcfg.gdb" --args $1) ];then
    echo "Upload success"
else
    echo "Failed to upload. Is openocd connected?"
    exit -1
fi

但是这并没有实现任何事情，因为我不知道发生故障时arm-none-eabi-gdb会返回什么，并且我在任何文档中都找不到。