On 17 July 2013 11:45, Phil Blundell <p...@pbcl.net> wrote:
> On Wed, 2013-07-17 at 16:40 +0800, Jesse Zhang wrote:
>> Fix failures when building with -fno-omit-frame-pointer (and without
>> optimization, i.e. -O0):
>>
>> In file included from atomic_ops.h:212:0,
>> from atomic_ops_stack.h:32,
>> from atomic_ops_stack.c:23:
>> atomic_ops/sysdeps/gcc/x86.h: In function
>> 'AO_compare_double_and_swap_double_full':
>> atomic_ops/sysdeps/gcc/x86.h:148:3: error: 'asm' operand has impossible
>> constraints
>> __asm__ __volatile__("xchg %%ebx,%6;" /* swap GOT ptr and new_val1 */
>
> This seems like it must be a bug in either GCC or the libatomic-ops
> source code, and whichever one has the bug ought to be fixed. Forcing
> -fomit-frame-pointer might be ok as a temporary measure but it doesn't
> seem like a very good long-term solution.
>
If this is on x86, standard Linux desktop/server distros may have ran
into the same problem. Maybe worth having a look if/how they handle
this.
--
Paul Barker
Email: p...@paulbarker.me.uk
http://www.paulbarker.me.uk
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