Dave Nadler wrote:> [microchip pic32 gcc - rebuild to support C++]
duane> Second, you'll need to look at your DEBUG options - they are not
using GDB - and there is *some* *limited* support for ejtag in OpenOCD.
dave>I expect (hope ?) to use GDB via JTAG. Proof of concept here is
using the ICD programmer but the MPLAB stuff will never support C++...
Well, when you are ready for OpenOCD - you can convert most "arm" (usb
ftdi based) jtag dongles via an adapter cable.
You'll find me on the OpenOCD list when you get that far.
duane> Third, if I remember correctly gcc-pic32 has many #pragma hacks-
that get picked up by the linker later on - and handles the bare metal
chip initialization stuff.
dave> Exactly; this is one of the reasons I'd like to rebuild their
version rather than move to a 3rd party version (the 3rd parties don't
support the Microchip extensions, leading to a different set of problems).
Generally, what these #pragma items appeared to be is data that is
stuffed into a special ELF segment - which - the Linker knows about -
and based on that - information - the startup code can find / figure out
how to initialize the chip registers out of a data table.
You might also ask these types of questions over on the "cross-gcc" list.
-Duane.
