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[GR-53680] Support path related flags for loading NFI libraries on Wi…
…ndows. PullRequest: graal/17609
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156 changes: 156 additions & 0 deletions
156
...racle.truffle.nfi.backend.libffi/src/com/oracle/truffle/nfi/backend/libffi/LoadFlags.java
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| /* | ||
| * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved. | ||
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| * | ||
| * The Universal Permissive License (UPL), Version 1.0 | ||
| * | ||
| * Subject to the condition set forth below, permission is hereby granted to any | ||
| * person obtaining a copy of this software, associated documentation and/or | ||
| * data (collectively the "Software"), free of charge and under any and all | ||
| * copyright rights in the Software, and any and all patent rights owned or | ||
| * freely licensable by each licensor hereunder covering either (i) the | ||
| * unmodified Software as contributed to or provided by such licensor, or (ii) | ||
| * the Larger Works (as defined below), to deal in both | ||
| * | ||
| * (a) the Software, and | ||
| * | ||
| * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if | ||
| * one is included with the Software each a "Larger Work" to which the Software | ||
| * is contributed by such licensors), | ||
| * | ||
| * without restriction, including without limitation the rights to copy, create | ||
| * derivative works of, display, perform, and distribute the Software and make, | ||
| * use, sell, offer for sale, import, export, have made, and have sold the | ||
| * Software and the Larger Work(s), and to sublicense the foregoing rights on | ||
| * either these or other terms. | ||
| * | ||
| * This license is subject to the following condition: | ||
| * | ||
| * The above copyright notice and either this complete permission notice or at a | ||
| * minimum a reference to the UPL must be included in all copies or substantial | ||
| * portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | ||
| * SOFTWARE. | ||
| */ | ||
| package com.oracle.truffle.nfi.backend.libffi; | ||
|
|
||
| import java.util.List; | ||
|
|
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| import com.oracle.truffle.api.InternalResource.OS; | ||
|
|
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| abstract class LoadFlags { | ||
|
|
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| static LoadFlags initLoadFlags(LibFFIContext ctx) { | ||
| switch (OS.getCurrent()) { | ||
| case LINUX: | ||
| case DARWIN: | ||
| return new PosixFlags(ctx); | ||
| case WINDOWS: | ||
| return new WindowsFlags(); | ||
| default: | ||
| return new UnknownFlags(); | ||
| } | ||
| } | ||
|
|
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| abstract int parseFlags(List<String> flags); | ||
|
|
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| private LoadFlags() { | ||
| } | ||
|
|
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| static final class UnknownFlags extends LoadFlags { | ||
|
|
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| @Override | ||
| int parseFlags(List<String> flagNames) { | ||
| return 0; | ||
| } | ||
| } | ||
|
|
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| static final class PosixFlags extends LoadFlags { | ||
|
|
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| private final LibFFIContext ctx; | ||
|
|
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| PosixFlags(LibFFIContext ctx) { | ||
| this.ctx = ctx; | ||
| } | ||
|
|
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| @Override | ||
| int parseFlags(List<String> flagNames) { | ||
| int flags = 0; | ||
| boolean lazyOrNow = false; | ||
| if (flagNames != null) { | ||
| for (String flag : flagNames) { | ||
| switch (flag) { | ||
| case "RTLD_GLOBAL": | ||
| flags |= ctx.RTLD_GLOBAL; | ||
| break; | ||
| case "RTLD_LOCAL": | ||
| flags |= ctx.RTLD_LOCAL; | ||
| break; | ||
| case "RTLD_LAZY": | ||
| flags |= ctx.RTLD_LAZY; | ||
| lazyOrNow = true; | ||
| break; | ||
| case "RTLD_NOW": | ||
| flags |= ctx.RTLD_NOW; | ||
| lazyOrNow = true; | ||
| break; | ||
| case "ISOLATED_NAMESPACE": | ||
| if (ctx.ISOLATED_NAMESPACE == 0) { | ||
| // undefined | ||
| throw new NFIUnsupportedException("isolated namespace not supported"); | ||
| } | ||
| flags |= ctx.ISOLATED_NAMESPACE; | ||
| break; | ||
| } | ||
| } | ||
| } | ||
| if (!lazyOrNow) { | ||
| // default to 'RTLD_NOW' if neither 'RTLD_LAZY' nor 'RTLD_NOW' was specified | ||
| flags |= ctx.RTLD_NOW; | ||
| } | ||
| return flags; | ||
| } | ||
| } | ||
|
|
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| static final class WindowsFlags extends LoadFlags { | ||
|
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| @Override | ||
| int parseFlags(List<String> flagNames) { | ||
| int flags = 0; | ||
| if (flagNames != null) { | ||
| for (String flag : flagNames) { | ||
| // https://learn.microsoft.com/en-us/windows/win32/api/libloaderapi/nf-libloaderapi-loadlibraryexw | ||
| switch (flag) { | ||
| case "LOAD_LIBRARY_SEARCH_APPLICATION_DIR": | ||
| flags |= 0x00000200; | ||
| break; | ||
| case "LOAD_LIBRARY_SEARCH_DEFAULT_DIRS": | ||
| flags |= 0x00001000; | ||
| break; | ||
| case "LOAD_LIBRARY_SEARCH_DLL_LOAD_DIR": | ||
| flags |= 0x00000100; | ||
| break; | ||
| case "LOAD_LIBRARY_SEARCH_SYSTEM32": | ||
| flags |= 0x00000800; | ||
| break; | ||
| case "LOAD_LIBRARY_SEARCH_USER_DIRS": | ||
| flags |= 0x00000400; | ||
| break; | ||
| case "LOAD_WITH_ALTERED_SEARCH_PATH": | ||
| flags |= 0x00000008; | ||
| break; | ||
| case "ISOLATED_NAMESPACE": | ||
| throw new NFIUnsupportedException("isolated namespace not supported"); | ||
| } | ||
| } | ||
| } | ||
| return flags; | ||
| } | ||
| } | ||
| } |
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