| //===--- SymbolLookup.swift -----------------------------------------------===// |
| // |
| // This source file is part of the Swift.org open source project |
| // |
| // Copyright (c) 2014 - 2019 Apple Inc. and the Swift project authors |
| // Licensed under Apache License v2.0 with Runtime Library Exception |
| // |
| // See https://swift.org/LICENSE.txt for license information |
| // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #if canImport(Darwin) |
| import Darwin |
| #elseif canImport(Glibc) |
| import Glibc |
| #elseif os(Windows) |
| import CRT |
| import WinSDK |
| #else |
| #error("Unsupported platform") |
| #endif |
| |
| #if canImport(Darwin) || os(OpenBSD) |
| let RTLD_DEFAULT = UnsafeMutableRawPointer(bitPattern: -2) |
| #elseif os(Linux) |
| let RTLD_DEFAULT = UnsafeMutableRawPointer(bitPattern: 0) |
| #elseif os(Android) |
| #if arch(arm) || arch(i386) |
| let RTLD_DEFAULT = UnsafeMutableRawPointer(bitPattern: 0xffffffff as UInt) |
| #elseif arch(arm64) || arch(x86_64) |
| let RTLD_DEFAULT = UnsafeMutableRawPointer(bitPattern: 0) |
| #else |
| #error("Unsupported platform") |
| #endif |
| #elseif os(Windows) |
| let hStdlibCore: HMODULE = GetModuleHandleA("swiftCore.dll")! |
| #elseif os(WASI) |
| // WASI doesn't support dynamic linking yet. |
| #else |
| #error("Unsupported platform") |
| #endif |
| |
| public func pointerToSwiftCoreSymbol(name: String) -> UnsafeMutableRawPointer? { |
| #if os(Windows) |
| return unsafeBitCast(GetProcAddress(hStdlibCore, name), |
| to: UnsafeMutableRawPointer?.self) |
| #elseif os(WASI) |
| fatalError("\(#function) is not supported on WebAssembly/WASI") |
| #else |
| return dlsym(RTLD_DEFAULT, name) |
| #endif |
| } |
