> src/external/lgpl2/userspace-rcu/dist/include/urcu/arch: sparc64.h
hmmm, you could make the ones with "stbar" also be present for v7 as it is a no-op there... and if binutils is to be believed, ldstub also exists in sparc v6 (!). perhaps "swap" isntruction (which is in v7) can be used here? either way, please make this consistent for v7 and v8, as we compile with v7 target normally and so this actually means that v8 systems are missing the support entirely. thanks. .mrg.
