gotosocial/vendor/github.com/bytedance/sonic/loader/mmap_unix.go
2023-02-25 12:12:40 +00:00

45 lines
1.2 KiB
Go

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