diff options
Diffstat (limited to 'libgo/go/runtime/cgo_mmap.go')
| -rw-r--r-- | libgo/go/runtime/cgo_mmap.go | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/libgo/go/runtime/cgo_mmap.go b/libgo/go/runtime/cgo_mmap.go deleted file mode 100644 index c0396bdde5..0000000000 --- a/libgo/go/runtime/cgo_mmap.go +++ /dev/null @@ -1,41 +0,0 @@ -// Copyright 2015 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. - -// Support for memory sanitizer. See runtime/cgo/mmap.go. - -// +build linux,amd64 - -package runtime - -import "unsafe" - -// _cgo_mmap is filled in by runtime/cgo when it is linked into the -// program, so it is only non-nil when using cgo. -//go:linkname _cgo_mmap _cgo_mmap -var _cgo_mmap unsafe.Pointer - -func mmap(addr unsafe.Pointer, n uintptr, prot, flags, fd int32, off uint32) unsafe.Pointer { - if _cgo_mmap != nil { - // Make ret a uintptr so that writing to it in the - // function literal does not trigger a write barrier. - // A write barrier here could break because of the way - // that mmap uses the same value both as a pointer and - // an errno value. - // TODO: Fix mmap to return two values. - var ret uintptr - systemstack(func() { - ret = callCgoMmap(addr, n, prot, flags, fd, off) - }) - return unsafe.Pointer(ret) - } - return sysMmap(addr, n, prot, flags, fd, off) -} - -// sysMmap calls the mmap system call. It is implemented in assembly. -func sysMmap(addr unsafe.Pointer, n uintptr, prot, flags, fd int32, off uint32) unsafe.Pointer - -// cgoMmap calls the mmap function in the runtime/cgo package on the -// callCgoMmap calls the mmap function in the runtime/cgo package -// using the GCC calling convention. It is implemented in assembly. -func callCgoMmap(addr unsafe.Pointer, n uintptr, prot, flags, fd int32, off uint32) uintptr |