Re: More useful support for low-end ARM architecture

2014-11-12 Thread Joey Ye
On Wed, Nov 12, 2014 at 1:47 AM, Joern Rennecke wrote: > On 11 November 2014 16:22, Joey Ye wrote: >> * Expensive effort. Either supporting none, or supporting all. There >> are large number of MCUs from ARM eco-system partners. Supporting all >> of them is a large project. >> * Maintance nightma

Re: More useful support for low-end ARM architecture

2014-11-11 Thread Joern Rennecke
On 11 November 2014 16:22, Joey Ye wrote: > Markus, > > -mmcu probably will not work for ARM architectured MCUs. Reason are > * Confusion. -mcpu is encouraged and already widely used for ARM > architectures. Introducing -mmcu will be very confusing. It' just a matter of bundling specifications.

Re: More useful support for low-end ARM architecture

2014-11-11 Thread Joey Ye
Markus, -mmcu probably will not work for ARM architectured MCUs. Reason are * Confusion. -mcpu is encouraged and already widely used for ARM architectures. Introducing -mmcu will be very confusing. * Expensive effort. Either supporting none, or supporting all. There are large number of MCUs from A

More useful support for low-end ARM architecture

2014-11-08 Thread Markus Hitter
Hello gcc folks, recently I started to expand a project of mine running mainly on AVR ATmega to low end ARM chips. To my enlightment, gcc supports these thingies already. To my disappointment, this support is pretty complicated. One faces at least a much steeper learning curve that on AVR. Acco