36 lines
1.3 KiB
Go
36 lines
1.3 KiB
Go
// Copyright 2020 The gVisor Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// +build arm64
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package linux
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import (
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"gvisor.dev/gvisor/pkg/sentry/arch"
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"gvisor.dev/gvisor/pkg/sentry/kernel"
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)
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// Clone implements linux syscall clone(2).
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// sys_clone has so many flavors, and we implement the default one in linux 3.11
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// arm64(kernel/fork.c with CONFIG_CLONE_BACKWARDS defined in the config file):
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// sys_clone(clone_flags, newsp, parent_tidptr, tls_val, child_tidptr)
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func Clone(t *kernel.Task, args arch.SyscallArguments) (uintptr, *kernel.SyscallControl, error) {
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flags := int(args[0].Int())
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stack := args[1].Pointer()
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parentTID := args[2].Pointer()
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tls := args[3].Pointer()
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childTID := args[4].Pointer()
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return clone(t, flags, stack, parentTID, childTID, tls)
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}
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