Check in gVisor.

PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463

1 files changed, 103 insertions, 0 deletions

diff --git a/pkg/abi/linux/mm.go b/pkg/abi/linux/mm.go
new file mode 100644
index 000000000..2263653cc
--- /dev/null
+++ b/pkg/abi/linux/mm.go
@@ -0,0 +1,103 @@
+// Copyright 2018 Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package linux
+
+// Protections for mmap(2).
+const (
+	PROT_NONE      = 0
+	PROT_READ      = 1 << 0
+	PROT_WRITE     = 1 << 1
+	PROT_EXEC      = 1 << 2
+	PROT_SEM       = 1 << 3
+	PROT_GROWSDOWN = 1 << 24
+	PROT_GROWSUP   = 1 << 25
+)
+
+// Flags for mmap(2).
+const (
+	MAP_SHARED     = 1 << 0
+	MAP_PRIVATE    = 1 << 1
+	MAP_FIXED      = 1 << 4
+	MAP_ANONYMOUS  = 1 << 5
+	MAP_GROWSDOWN  = 1 << 8
+	MAP_DENYWRITE  = 1 << 11
+	MAP_EXECUTABLE = 1 << 12
+	MAP_LOCKED     = 1 << 13
+	MAP_NORESERVE  = 1 << 14
+	MAP_POPULATE   = 1 << 15
+	MAP_NONBLOCK   = 1 << 16
+	MAP_STACK      = 1 << 17
+	MAP_HUGETLB    = 1 << 18
+)
+
+// Flags for mremap(2).
+const (
+	MREMAP_MAYMOVE = 1 << 0
+	MREMAP_FIXED   = 1 << 1
+)
+
+// Advice for madvise(2).
+const (
+	MADV_NORMAL       = 0
+	MADV_RANDOM       = 1
+	MADV_SEQUENTIAL   = 2
+	MADV_WILLNEED     = 3
+	MADV_DONTNEED     = 4
+	MADV_REMOVE       = 9
+	MADV_DONTFORK     = 10
+	MADV_DOFORK       = 11
+	MADV_MERGEABLE    = 12
+	MADV_UNMERGEABLE  = 13
+	MADV_HUGEPAGE     = 14
+	MADV_NOHUGEPAGE   = 15
+	MADV_DONTDUMP     = 16
+	MADV_DODUMP       = 17
+	MADV_HWPOISON     = 100
+	MADV_SOFT_OFFLINE = 101
+	MADV_NOMAJFAULT   = 200
+	MADV_DONTCHGME    = 201
+)
+
+// Flags for msync(2).
+const (
+	MS_ASYNC      = 1 << 0
+	MS_INVALIDATE = 1 << 1
+	MS_SYNC       = 1 << 2
+)
+
+// Policies for get_mempolicy(2)/set_mempolicy(2).
+const (
+	MPOL_DEFAULT    = 0
+	MPOL_PREFERRED  = 1
+	MPOL_BIND       = 2
+	MPOL_INTERLEAVE = 3
+	MPOL_LOCAL      = 4
+	MPOL_MAX        = 5
+)
+
+// Flags for get_mempolicy(2).
+const (
+	MPOL_F_NODE         = 1 << 0
+	MPOL_F_ADDR         = 1 << 1
+	MPOL_F_MEMS_ALLOWED = 1 << 2
+)
+
+// Flags for set_mempolicy(2).
+const (
+	MPOL_F_RELATIVE_NODES = 1 << 14
+	MPOL_F_STATIC_NODES   = 1 << 15
+
+	MPOL_MODE_FLAGS = (MPOL_F_STATIC_NODES | MPOL_F_RELATIVE_NODES)
+)