On Wed, 22 Aug 2007 21:04:28 +0200
Mariusz Kozlowski <[EMAIL PROTECTED]> wrote:
> Hello,
>
> Got that on imac g3.
>
> CC kernel/kgdb.o
> kernel/kgdb.c: In function 'kgdb_handle_exception':
> kernel/kgdb.c:940: error: invalid lvalue in unary '&'
> kernel/kgdb.c:940: warning: type defaults to 'int' in declaration of '_o_'
> kernel/kgdb.c:940: error: invalid lvalue in unary '&'
> kernel/kgdb.c:940: warning: type defaults to 'int' in declaration of '_n_'
> kernel/kgdb.c:940: error: invalid lvalue in unary '&'
> kernel/kgdb.c:940: error: invalid lvalue in unary '&'
> kernel/kgdb.c:940: error: invalid lvalue in unary '&'
> kernel/kgdb.c:940: warning: type defaults to 'int' in declaration of 'type
> name'
> make[1]: *** [kernel/kgdb.o] Blad 1
> make: *** [kernel] Blad 2
>
I'm not surprised.
while (cmpxchg(&atomic_read(&debugger_active), 0, (procid + 1)) != 0) {
a) cmpxchg isn't available on all architectures
b) we can't just go and take the address of atomic_read()'s return value!
c) that's pretty ugly-looking stuff anyway.
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