Question

任何人都可以帮助如何使用multilib支持x86_64架构来构建gcc交叉编译器？那就是从m32和m64 lib支持的源代码构建它。

有一篇很好的文章展示了如何构建一个gcc交叉编译器： http://preshing.com/20141119/how-to-build-a-gcc-cross-compiler/ ，但它只用--disable-multilib演示了这种情况。

我正在尝试使用--enable-multilib选项（对于m32和m64）构建x86_64 gcc交叉编译器，而不是--disable-mutlilib。

除非使用arch = x86_64 * - *和--enable-multilib，否则我会这样做我面临的问题是步骤4.标准C库标题和启动文件

def mozs():

    models = [Url1, Url2, Url3, Url4, Url5, Url6, Url7, Url8, Url9, Url10]

    for model in models:
        moz(model)

def moz(model):

    getids = model.objects.values_list('id', flat=True)

    for id in getids:

        if model.objects.get(id=id).pda == None:
            a2 = model.objects.get(id=id).url
            authorities = l.urlMetrics([a2], lsapi.UMCols.domainAuthority | lsapi.UMCols.pageAuthority)
            authorities =  str(authorities)
            authorities = authorities.translate(None, '[]')
            authorities = ast.literal_eval(authorities)
            authorities['keyword'] = id

            serializer = MozSerializer(data=authorities, model=model)

            if serializer.is_valid():
                serializer.save()

            print "For %d we added %s" % (id, authorities)
            print type(authorities)

class MozSerializer(serializers.Serializer):
    pda = serializers.FloatField()
    upa = serializers.FloatField()

    def __init__(self, data=None, model=model):
        self.model = model
        self.keyword = serializers.PrimaryKeyRelatedField(queryset=model.objects.all())
        super(MozSerializer, self).__init__(data=data)

    def save(self):
        keyword = self.validated_data['keyword']
        pda = self.validated_data['pda']
        upa = self.validated_data['upa']

        self.model.objects.update(pda=pda, upa=upa)

出现以下错误：

$ make install-bootstrap-headers=yes install-headers

有什么想法吗？

我安装了multilib：

/opt/cross/lib/gcc/x86_64-linux/4.9.2/../../../../x86_64-linux/bin/ld: cannot find crtbegin.o: No such file or directory
/opt/cross/lib/gcc/x86_64-linux/4.9.2/../../../../x86_64-linux/bin/ld: cannot find -lgcc
/opt/cross/lib/gcc/x86_64-linux/4.9.2/../../../../x86_64-linux/bin/ld: cannot find -lgcc_s
/opt/cross/lib/gcc/x86_64-linux/4.9.2/../../../../x86_64-linux/bin/ld: cannot find -lgcc
/opt/cross/lib/gcc/x86_64-linux/4.9.2/../../../../x86_64-linux/bin/ld: cannot find -lgcc_s
/opt/cross/lib/gcc/x86_64-linux/4.9.2/../../../../x86_64-linux/bin/ld: cannot find crtend.o: No such file or director

Answer 1

从Gentoo项目中查看crossdev，这极大地简化了构建交叉编译器。
根据我的经验，最挑剔的部分通常是找到可以一起成功构建的binutils，glibc和gcc版本。

正如R M建议的那样，除非你愿意，否则你不需要自己构建它。

Answer 2

sudo apt-get install gcc-4.9.2

如何使用--disable-multilib构建gcc交叉编译器

2 个答案: