/*
 * Copyright 2021 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 (
    `sync`
    _ `unsafe`
)

//go:linkname lastmoduledatap runtime.lastmoduledatap
//goland:noinspection GoUnusedGlobalVariable
var lastmoduledatap *_ModuleData

//go:linkname moduledataverify1 runtime.moduledataverify1
func moduledataverify1(_ *_ModuleData)

//go:nosplit
func no_pointers_stackmap() uintptr

var (
    modLock sync.Mutex
    modList []*_ModuleData
)

func encodeVariant(v int) []byte {
    var u int
    var r []byte

    /* split every 7 bits */
    for v > 127 {
        u = v & 0x7f
        v = v >> 7
        r = append(r, byte(u) | 0x80)
    }

    /* check for last one */
    if v == 0 {
        return r
    }

    /* add the last one */
    r = append(r, byte(v))
    return r
}

func registerModule(mod *_ModuleData) {
    modLock.Lock()
    modList = append(modList, mod)
    lastmoduledatap.next = mod
    lastmoduledatap = mod
    modLock.Unlock()
}