From f6ad4dcef54c5ce997a4bad5a6d86de229015700 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:25:22 +0200 Subject: Adding upstream version 1.22.1. Signed-off-by: Daniel Baumann --- src/runtime/msize_noallocheaders.go | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 src/runtime/msize_noallocheaders.go (limited to 'src/runtime/msize_noallocheaders.go') diff --git a/src/runtime/msize_noallocheaders.go b/src/runtime/msize_noallocheaders.go new file mode 100644 index 0000000..d89e0d6 --- /dev/null +++ b/src/runtime/msize_noallocheaders.go @@ -0,0 +1,29 @@ +// Copyright 2009 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +//go:build !goexperiment.allocheaders + +// Malloc small size classes. +// +// See malloc.go for overview. +// See also mksizeclasses.go for how we decide what size classes to use. + +package runtime + +// Returns size of the memory block that mallocgc will allocate if you ask for the size. +// +// The noscan argument is purely for compatibility with goexperiment.AllocHeaders. +func roundupsize(size uintptr, noscan bool) uintptr { + if size < _MaxSmallSize { + if size <= smallSizeMax-8 { + return uintptr(class_to_size[size_to_class8[divRoundUp(size, smallSizeDiv)]]) + } else { + return uintptr(class_to_size[size_to_class128[divRoundUp(size-smallSizeMax, largeSizeDiv)]]) + } + } + if size+_PageSize < size { + return size + } + return alignUp(size, _PageSize) +} -- cgit v1.2.3