是否可以将命令行参数传递给GNU LD来创建一个部分，定义大小并将其放在特定的内存中？

I want to create a section in RAM, allocate a specific size and place it an an address? Is it possible to do all these operations without passing a linker script "file" or w/o modifying the existing linker script ? I want to create a section in RAM, allocate a s