GCC/GDB questions

I'm evaluating the ARM DS-5 and Linaro toolchains and the FVP model simulators. I'm starting with the DS-5 Community Edition and the Foundation Profile simulator before advancing to the commercial tools. So I have a few questions:

• The hello.c example included with the Foundation Profile simulator download package includes a compiled executable that runs on the Foundation Profile simulator. But the included Makefile is based on the commercial ARM compiler and not the Linaro version of GCC included in DS-5 Community Edition. Could you provide a GCC command-line example for compiling and linking hello.c for running on the (v8.1a) simulator?
• The DS-5 Community Edition includes an Eclipse-based IDE and a compiler toolchain based on GCC 4.8.3. Yet http://www.arm.com/products/tools/models/fast-models/foundation-model.php suggests that the Foundation Platform simulator model uses a GDB connection while the FVP simulator model provides "non-intrusive debug support with DS-5". Can I debug code running on a Foundation Platform simulator model using the DS-5 Community Edition IDE or am I limited to GDB?
• Is there a simple gdbserver setup example?