In <f8uvod$1t6i$1@nef.ens.fr> Marc <marc.glisse@gmail.com> writes:

>"Charles Lindsey" wrote:

>> And I have observed that even my somewhat ancient Sun C compiler never
>> seems to make use of %g7.
>>
>> OTOH, I have another compiler, nothing to do with Sun, that is not aware
>> of %g7 being reserved for anything. So as a result I have a program that
>> worked fine under Solaris 7, bur breaks in Solaris 10.

>This blog post should answer all your questions:

>http://blogs.sun.com/morganh/entry/a...king_the_rules

Yes, that describes exactly the problem I have run into, and confirms that
it only arises in Solaris 10. Apparently, all processes are now considered
to be multi-threaded (and hence reserve %g7), and single-threaded
processes are not supposed to notice the difference (and indeed %g7 had
always been reserved for some unspecified 'system' use). It looks as
though %g6 could also produce similar problems.

The compiler that caused the problem was the Amsterdam Compiler Kit, which
is ancient and unmaintained, and was in any case never intended for
multi-threaded applications. So it seems I will have to do a little
maintenance of it myself :-( .

--
Charles H. Lindsey ---------At Home, doing my own thing------------------------
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