2 Commits

Author	SHA1	Message	Date
Ian Lance Taylor	e65c0a82ce	runtime: use new CNT_MASK in lfstack ... This is for SPARC64, a 64-bit processor that uses all 64-bits of virtual addresses. The idea is to use the low order 3 bits to at least get a small ABA counter. That should work since pointers are aligned. The idea is for SPARC64 to set CNT_MASK == 7, PTR_BITS == 0, PTR_MASK == 0xffffffffffffff8. Also add uintptr casts to avoid GCC warnings. The gccgo runtime code is compiled with GCC, and GCC warns when casting between a pointer and a type of a different size. R=dvyukov CC=golang-dev https://golang.org/cl/7225043	2013-01-26 18:16:43 -08:00
Dmitriy Vyukov	a5dc7793c0	runtime: add lock-free stack ... This is factored out part of the: https://golang.org/cl/5279048/ (parallel GC) R=golang-dev, rsc CC=golang-dev https://golang.org/cl/5993043	2012-04-12 11:49:25 +04:00