[zeromq-dev] atomic ops
ivan.pechorin at gmail.com
Thu Feb 9 07:14:26 CET 2012
2012/2/8 Steven McCoy <steven.mccoy at miru.hk>:
> Compare with my atomics:
Steven, what is the reason to use asm on Solaris/x86 instead of
Solaris intrinsics from <atomic.h> ?
#elif (defined( __SUNPRO_C ) || defined( __SUNPRO_CC )) && (defined(
__i386 ) || defined( __amd64 ))
uint32_t result = val;
__asm__ volatile ("lock; xaddl %0, %1"
:: "r" (result), "m" (*atomic) );
And (sorry for stupid question), why the asm for x86/x86_64 is
different for SunCC and for GCC/ICC ?
By the way, HP-UX also has the same intrinsics in <atomic.h>.
So, I believe, it's worth changing
#if defined( __sun )
# include <atomic.h>
to something like this:
#if (defined(sun) || defined(__sun) || defined(hpux) || defined(__hpux))
At least, that's what we use in our proprietary code that runs on all
of these platforms.
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