[RFC PATCH 00/11] ARM: s3c64xx: Let amba-pl08x driver handle DMA

[Phil Carmody]

> -----Original Message-----
> On Thu, Jun 20, 2013 at 12:24:47PM +0300, Phil Carmody wrote:
> > Can you just make that minimal change, and diff the objdump of the
> two .o's?
> > It would be worth a bug-report against the toolchain if different
> code
> > was being generated. If objdump spews huge numbers of diffs (due to
> > one address changing and pushing everything else out of kilter), then
> > feel free to forward both .o's or both objdumps to me, and I can run
> a
> > script over them, which knows to ignore unimportant address changes.
> 
> See Arnd's followup - this looks like a collision with the get_signal
> macro in signal.h.


With my language-lawyer hat on, I'd suggest ``(get_signal)'' to prevent the
macro expansion:

/tmp$ cat crap.c

#define fnlikemacro(foo) foo+

int x(int y) {
  int (fnlikemacro) = y;
  return fnlikemacro(y)(fnlikemacro);
}

/tmp$ gcc -E crap.c

int x(int y) {
  int (fnlikemacro) = y;
  return y+(fnlikemacro);
}

(and yes, that compiles.)

However, it's more tempting (i.e. sensible) to just rename the 
one with the weaker claim to the name.

Phil