+CC Arnd, Michal Hi Geert, Arnd Need some guidance here. On 10/17/2016 12:34 AM, Geert Uytterhoeven wrote: >> 48 error regressions: >> > + /home/kisskb/slave/src/arch/arc/include/asm/atomic.h: Error: bad instruction `llockd r2,[r0]': => 476 >> > + /home/kisskb/slave/src/arch/arc/include/asm/atomic.h: Error: bad instruction `llockd r2,[r13]': => 475 [snip...] >> > + /home/kisskb/slave/src/arch/arc/include/asm/atomic.h: Error: bad instruction `scondd r4,[r8]': => 516 >> > + /home/kisskb/slave/src/arch/arc/include/asm/atomic.h: Error: bad instruction `scondd r6,[r3]': => 478 > arcv2/axs103_smp_defconfig I'm thinking how to address this correctly. This is due to the older version of compiler. The fix itself is trivial - add an "call as-instr" construct in Makefile to get -DARC_TOOLS_SUPPORT_LLOCKD However the atomic64 API variant (CONFIG_GENERIC_ATOMIC64 or arch native) which gets included in build comes from Kconfig (ISA supports them or not). How do we tie the Makefile info into the Kconfig. We could trigger a build failure for invalid combinations of GENERIC_ATOMIC64 and ARC_TOOLS_SUPPORT_LLOCKD but that would be less than ideal out of box experience. Or the simpler solution is that kisskb upgrades the ARC GNU compiler ;-) -Vineet
