| // 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. |
| |
| // +build cgo |
| |
| // +build linux,amd64 |
| |
| #include <errno.h> |
| #include <stdint.h> |
| #include <sys/mman.h> |
| |
| void * |
| x_cgo_mmap(void *addr, uintptr_t length, int32_t prot, int32_t flags, int32_t fd, uint32_t offset) { |
| void *p; |
| |
| p = mmap(addr, length, prot, flags, fd, offset); |
| if (p == MAP_FAILED) { |
| /* This is what the Go code expects on failure. */ |
| p = (void *) (uintptr_t) errno; |
| } |
| return p; |
| } |
