podman

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//go:build darwin || linux
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// +build darwin linux
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/**
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 * Copyright 2023 ByteDance Inc.
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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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 */
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package loader
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import (
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    `syscall`
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)
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const (
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    _AP = syscall.MAP_ANON  | syscall.MAP_PRIVATE
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    _RX = syscall.PROT_READ | syscall.PROT_EXEC
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    _RW = syscall.PROT_READ | syscall.PROT_WRITE
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)
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func mmap(nb int) uintptr {
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    if m, _, e := syscall.RawSyscall6(syscall.SYS_MMAP, 0, uintptr(nb), _RW, _AP, 0, 0); e != 0 {
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        panic(e)
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    } else {
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        return m
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    }
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}
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func mprotect(p uintptr, nb int) {
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    if _, _, err := syscall.RawSyscall(syscall.SYS_MPROTECT, p, uintptr(nb), _RX); err != 0 {
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        panic(err)
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    }
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}
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