Question

这个问题是关于交叉编译的。

使用swift编译器的 -target 或 -target-cpu 选项可以使用哪种不同的目标？我在哪里可以找到概述？

仅在那里创建iOS / watchOS应用程序，还是可以用它在macOS上创建linux程序（常规x86-64处理器）？

我尝试搜索github存储库并找到＆＃39; x86_64-unknown-linux-gnu＆＃39; 作为目标。但是，当我尝试编写一个简单的＃34; hello world＆＃34;程序（swiftc -target x86_64-unknown-linux-gnu test.swift）我收到此错误：

<unknown>:0: error: unable to load standard library for target 'x86_64-unknown-linux-gnu'

修改我同意CristiFati。这个问题的最后一部分是关于如何正确地包含/引用glibc（？！？）。

Answer 1

如果您查看Swift repository on Github（确切位置：swift/utils/swift_build_support/swift_build_support/targets.py），您会在line 149-192的target.py处看到所有主机定位。

支持：

def host_target():
    """
    Return the host target for the build machine, if it is one of
    the recognized targets. Otherwise, throw a NotImplementedError.
    """
    system = platform.system()
    machine = platform.machine()

    if system == 'Linux':
        if machine == 'x86_64':
            return StdlibDeploymentTarget.Linux.x86_64
        elif machine.startswith('armv7'):
            # linux-armv7* is canonicalized to 'linux-armv7'
            return StdlibDeploymentTarget.Linux.armv7
        elif machine.startswith('armv6'):
            # linux-armv6* is canonicalized to 'linux-armv6'
            return StdlibDeploymentTarget.Linux.armv6
        elif machine == 'aarch64':
            return StdlibDeploymentTarget.Linux.aarch64
        elif machine == 'ppc64':
            return StdlibDeploymentTarget.Linux.powerpc64
        elif machine == 'ppc64le':
            return StdlibDeploymentTarget.Linux.powerpc64le
        elif machine == 's390x':
            return StdlibDeploymentTarget.Linux.s390x

    elif system == 'Darwin':
        if machine == 'x86_64':
            return StdlibDeploymentTarget.OSX.x86_64

    elif system == 'FreeBSD':
        if machine == 'amd64':
            return StdlibDeploymentTarget.FreeBSD.x86_64

    elif system == 'CYGWIN_NT-10.0':
        if machine == 'x86_64':
            return StdlibDeploymentTarget.Cygwin.x86_64

    elif system == 'Windows':
        if machine == "AMD64":
            return StdlibDeploymentTarget.Windows.x86_64

    raise NotImplementedError('System "%s" with architecture "%s" is not '
                              'supported' % (system, machine))

swiftc -target和-target-cpu选项有哪些可用的目标？

1 个答案:

支持：