$NetBSD: patch-js_src_gc_Memory.cpp,v 1.2 2015/05/26 12:18:23 ryoon Exp $ Make sure mmap() delivers memory with upper 17 bits clear on sparc64 on NetBSD: with topdown-vm we would map in the last 4 gig of the address space (past the VA hole) otherwise by default, thus busting the JSValue restrictions. https://bugzilla.mozilla.org/show_bug.cgi?id=994133 --- js/src/gc/Memory.cpp.orig 2015-05-05 02:53:53.000000000 +0000 +++ js/src/gc/Memory.cpp @@ -212,7 +212,7 @@ gc::InitMemorySubsystem(JSRuntime* rt) static inline void* MapMemory(size_t length, int prot, int flags, int fd, off_t offset) { -#if defined(__ia64__) +#if defined(__ia64__) || (defined(__sparc64__) && defined(__NetBSD__)) /* * The JS engine assumes that all allocated pointers have their high 17 bits clear, * which ia64's mmap doesn't support directly. However, we can emulate it by passing