On Tue, May 1, 2018 at 1:31 AM, Rich Felker <dalias@libc.org> wrote:
> On Mon, Apr 30, 2018 at 03:29:39PM +1000, Patrick Oppenlander wrote:
>> Actually, my biggest issue with getcwd is that it allocates a PATH_MAX
>> sized buffer on the stack. That's painful on deeply embedded stuff.
>
> That's unrelated, and could/should be fixed by the attached patch I
> think.

Unfortunately that fails to build on arm with:

src/unistd/getcwd.c: In function 'getcwd':
src/unistd/getcwd.c:25:1: error: r7 cannot be used in asm here

I was also having a go at resolving the stack & the buffer size issue
and came up with the attached (untested) patch.

Patrick