有没有人在mac上安装过linux x86的交叉编译器gcc?

netjune · 2023 年3 月 6 日 09:11

准确来说是给x86_64平台的Centos7编译c++程序用的, 网上找到个开源项目crosstool-ng, 可惜官方不支持macOS, 但是说有人试过能在老版本上编译成功, 我试了多次不同的版本, 编译失败

LdBeth · 2023 年3 月 6 日 14:34

直接 virtualbox

dimilar · 2023 年3 月 6 日 14:45

直接用clang + centos7的toolchain（glibc，libstdc++）就可以编，甚至编任何平台的都可以，因为clang本身就是一个交叉编译器

netjune · 2023 年3 月 7 日 06:25

虚拟机用了几年, 不方便. 另外准备搞台m芯片的mac, 装x86虚拟机先不说能不能装, 即使能转换损耗也太大了.

netjune · 2023 年3 月 7 日 06:26

有没有详细点的教程? 网上没看到这方面的文章

jiacai2050 · 2023 年3 月 7 日 23:47

https://andrewkelley.me/post/zig-cc-powerful-drop-in-replacement-gcc-clang.html

交叉编译的最佳选择。

最近一直在收集素材，写一篇 go rust 如何去利用 zig 进行交叉编译。

netjune · 2023 年3 月 8 日 02:26

这个看着有点全能啊，不知道对c和c++的兼容性怎么样。准备试用一下

netjune · 2023 年3 月 8 日 23:29

试了一下, 编译一个简单的c++测试文件, 没有成功.

$ zig c++ -target x86_64-pc-linux-elf a.cpp

error: UnknownOperatingSystem

难道target格式不一样? 用clang测试同样target, 会编译然后提示头文件找不到, 但zig好像不支持此target.

jiacai2050 · 2023 年3 月 9 日 04:44

github.com/ziglang/zig

zig cc: parse `-target` and `-mcpu`/`-march`/`-mtune` flags according to clang

opened 07:59PM - 02 Apr 20 UTC

andrewrk

proposal zig cc

Extracted from #4784 Status quo: Even when doing `zig cc`, `-target` is p…arsed as Zig's `-target` flag, which is different in some ways than clang's, as it contains (optional) os version info, glibc version info, and it's proposed (#4584) to have cpu feature syntax as well. Similarly, `-mcpu`, `-march`, and `-mtune` are all treated identically, as the zig `-mcpu` parameter. This is useful since the zig syntax allows specifying CPU model name and features. This proposal is to add more code to support these options to be strictly compliant with clang's syntax. This would potentially improve the "drop-in" robustness of this feature, at the expense of the extra info that zig's syntax supports. If this proposal is implemented, then `zig cc` probably would need to introduce a few of its own non-standard flags to support specifying this additional information. As an argument for *not* doing this, it's simpler and more powerful to leave things as status quo, and often, the reason people are using `zig cc` is for cross compiling anyway, in which case they will be putting the `-target` and/or `-mcpu` flags as part of the `CC` environment variable or equivalent. For this use case status quo is actually preferable.

稍微谷歌一下就好了

12101111 · 2023 年3 月 9 日 14:08

zig c++ --target=x86_64-linux-gnu.2.17 test.cpp -o test

正确的语法是这个, glibc版本是2.17.

netjune · 2023 年3 月 9 日 16:07

用上了, 简单的编译ok. 后续测试下真实工程.

jiacai2050 · 2023 年3 月 10 日 07:01

后续再有问题，可以提问到这里：