[PATCH 1/2] BZ#13743: PowerPC - Add a new header for platform specific functions

[Thomas Schwinge]

Hi!

On Thu, 8 Mar 2012 06:34:57 -0500, Ulrich Drepper <drepper@gmail.com> wrote:
> On Wed, Mar 7, 2012 at 09:16, Steven Munroe <munroesj@linux.vnet.ibm.com> wrote:
> > Now if you think only PowerPC has these issue, consider all the random
> > attempts to use the rdtsc instruction you might have seen, and how
> > useful it would be to have one well defined and correct version every
> > one could use.
> 
> If this is a fair comparison then it is also clear that this
> discussion is completely misplaced here.  Something as trivial as
> rdtsc should be handled in the same way as said instruction is: in a
> header in gcc.  This way you also reach programmers who are not using
> glibc  but instead gcc on other platforms.
> 
> Since this was brought up on the glibc list I have to assume there is
> more to it.  And that means your argumentation is deliberately
> misleading.

I also wondered about these two issues: why is this to be part of the
sysdeps/unix/sysv/linux/ hierarchy, given there is nothing Linux-specific
to it (as far as I can tell), and why is this to be in glibc at all,
given there is nothing libc-specific to it (as far as I can tell)?  I
likewise would assume to find such a generic ``ISA helper header'' as
part of the compiler itself.


Grüße,
 Thomas
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