Replies: 24 comments 62 replies
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You need to pass |
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例如下面编译lcms2的脚本
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Add it before invoking configure, like |
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非常感谢，按照您的方法可以成功编译了。发现用到att参数的还不少呢。lcms2 gmp libcaca libjxl libsdl2 libsoxr libwebp mbedtls rubberband, 还有ffmpeg。这些都需要加 话说，如果啥时候能把GCC with the MCF合并到msys2的官方包里就好啦，这样的话以后更新就方便多了。 |
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AT&T 老狗们不识抬举，让我骂了 https://gcc.gnu.org/pipermail/gcc/2022-November/240103.html 。 |
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53929#c13 真是个颠覆认知的东西。 微软的编译器 CL 编译出来的汇编并没有指定 RIP 相对定位，但是实际上生成的指令如果援引了符号，全部都是相对 RIP 定位的。相反地，GCC 生成的汇编全部都是显式地指定了 RIP 相对定位。 i686: mov eax, dword ptr [0] ; A1 imm32 绝对地址，32 位
mov eax, dword ptr [0] ; 8B 05 imm32 绝对地址，32 位
mov eax, dword ptr [0] ; 8B 04 25 imm32 绝对地址，32 位x86_64: mov eax, dword ptr [0] ; A1 imm64 绝对地址，64 位
mov eax, dword ptr rip[0] ; 8B 05 imm32 RIP 相对地址，32 位
mov eax, dword ptr [0] ; 8B 04 25 imm32 绝对地址，32 位但是，绝对地址是有用的，例如 |
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我总感觉个别顽固的外国佬程序员有排外的情绪在里面，不过有更好更优的解决方案早晚会得到大众认可的。 |
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再问下编译这个gcc with mcf工具链能在linux下进行吗。如果能在linux下编译效率会更高吧。 |
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mcfgthread 是可以编译的。gcc 理论上也可以交叉编译，但是没试过。 |
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This works for me. In order to run tests you need wine. |
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我初步打算，如果可行的话，在linux下制作交叉工具链（启用mcfghthread线程 ），然后用这个交叉工具链在linux runner上编译mpv。不过因为编译方面知识的欠缺需要您提供一些建议。比如编译的时候还需要打哪些补丁呢。以及编译mingw-crt mingw-header mingw-pthread binutils等等的顺序。 |
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也许可以看一看这个 https://github.com/niXman/mingw-builds 如果有开箱即用的编译器的话，能省不少事，大概是这个顺序，每个都要编译、安装才能开始编译下一个：
如果没有现成的交叉编译器的话要复杂一些：
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下面是尝试对shinchiro工具链的编译。过程中虽然没有报错，但最后有部分文件缺失（和shinchiro编译的结果对比）。没有 /lib/libcc1.la和/lib/libcc1.so.0.0.0这2个文件，没有/x86_64-w64-mingw32/include/c++这个目录。我在他仓库问了，暂时还没得到结果。 编译脚本如下： |
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你的 gcc 的 configure 参数里没有 |
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好的，我调整下脚本再编译试试看 |
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加了--build=x86_64-pc-linux-gnu --host=x86_64-w64-mingw32反而在configure阶段通不过。 |
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如果你需要的是 linux -> mingw32 的交叉编译器的话应该用这个 |
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嘛，这是编译环境： 这个gcc-multilib提供了交叉编译器 |
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你搞错了， |
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可但是这个编译环境确实没问题呀，我用它编译出的toolchain没有任何问题。 |
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编译器也是程序，和比如什么浏览器之类的一样。假如你在编译一个浏览器，你正在使用的编译器的 host 就是浏览器的 所以对于交叉编译的话，问题就是你在编译一个在哪用的编译器。如果你在编译 linux 到 windows 的交叉编译器，那么 如果你没有 |
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按照shinchiro的建议，问题解决啦~ 下面贴正确的脚本记录一下： |
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下面准备尝试在linux下交叉编译gcc with mcfgthread。 |
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初步尝试成功了哈！！可以交叉编译出在msys2环境下运行的gcc with mcfgthread工具链了。不过还有几个疑问向您请教。 1.我想链接到ucrt，编译脚本里应该做哪些设置呢？因为我编译mpv一直用的是您的ucrt版本。 2.如果直接用vanilla mingw-w64-crt编译gcc，而不且hacked版本的crt会有什么影响呢。从用户层面上讲，对编译出来的软件有什么影响。比如我用这个工具链编译出来的mpv会有什么影响。因为我在你mcfgthread的仓库看了一下，您讲的是更底层的东西，做为非程序员的我确实不太懂，原谅我是技术小白~ 3.帮我看一下下面的脚本有什么问题，我没打任何补丁，不知道会不会缺失什么功能，有什么要必打的补丁吗？ 这是编译出来的包：https://github.com/eko5624/toolchain-test/releases/download/toolchain/gcc-with-mcf-13.1.0.7z target-gcc脚本： |
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在 headers 和 crt 的 configure 参数里加上
extern "C" int printf(const char*, ...);
struct foo
{
const char* id;
foo(const foo&) = delete;
foo& operator=(const foo&) = delete;
explicit
foo(const char* s)
: id(s)
{ ::printf("%s: ctor\n", this->id); }
~foo()
{ ::printf("%s: dtor\n", this->id); }
};
int
main(void)
{
static foo s1("static 1");
thread_local foo t1("thread_local 1");
static foo s2("static 2");
thread_local foo t2("thread_local 2");
}C++ 标准规定：
但是从实现上讲，从 正确的实现应当是这样的：
那我觉得最好把这些都看一下，都是有用的： https://github.com/msys2/MINGW-packages/tree/master/mingw-w64-gcc |
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在 headers 和 crt 的 configure 参数里加上 --with-default-msvcrt=ucrt 加了之后出现编译错误，configure: error: Pthreads are required to build libatomic。 |
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看下 libatomic 里的 config.log 呀。 |
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发现问题所在了。编译cross gcc相关组件headers和crt时要加上 |
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GCC 并没有这个参数。那个链接库都叫 @libmsvcrt.a@，即使是 UCRT。 |
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嗯，这个我知道，我是说在编译headers和crt时加的参数 |
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用我编译出来的这个toolchain在编译时遇到了下面2个问题。 1.需要用到cmake的项目会出现： 需要设置下面的变量： 但用你的toolchain时就无需加入这些变量的设置就可以，这是为啥呢？ 2.编译libcaca时遇到下面的问题： |
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有没有一种可能，你用的是系统的 posix 线程 GCC 编译的 CRT…… |
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我觉得还有一种可能是编译pthreads需要hack一下。所以用没有hacked过pthreads工具链在编译必须要用pthread线程的项目时就会出错。因为我看你的工具链编译脚本里在编译headers时有些额外的操作，比如这句 还有在你的脚本里我没有看到编译pthreads的步骤。只有在安装gcc-libs时把libwinpthread-1.dll复制到/bin文件夹的操作。 |
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那不都是 MSYS2 的脚本吗？ |
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有没有一种可能，你用的是系统的 posix 线程 GCC 编译的 CRT…… 我的第2个target-gcc脚本里面就是用的第1步cross-gcc脚本编译出来的GCC编译的CRT，然后再全量编译GCC的。 |
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那建议你问一下 Debian，他们的交叉编译器默认都是 win32 线程的。 |
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@nyfair Any ideas? |
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arch两年前有人成功干过这事，建议去那边问问
https://aur.archlinux.org/packages/mingw-w64-mcfgthread-git
eko5624 ***@***.***> 于 2023年5月9日周二 16:44写道：
… @nyfair <https://github.com/nyfair> Any ideas?
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@lhmouse @nyfair 终于成功编译Windows版gcc with mcf线程啦。。。最重要的一点就是第一步交叉编译器也必须是带mcf线程的，然后用第一步带mcf线程的交叉编译器去编译Windows版的gcc with mcf才能成功。我把编译脚本分享出来。
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@nyfair 尝试在archlinux容器里遇到下面的问题。2个月前我尝试编译的时候也是这个问题，一直无法解决，你帮我看看： |
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那个得用fakeroot |
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或者就简单的添加一个普通用户，然后切到这个用户上编译 |
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好，我先不套docker直接在ubuntu上编译试试吧。 |
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不行呀，安装了pacman和devscripts还提示makepkg: command not found |
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makepkg也要装啊
eko5624 ***@***.***> 于 2023年7月19日周三 17:04写道：
… 不行呀，安装了pacman和devscripts还提示makepkg: command not found
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https://packages.ubuntu.com/search?keywords=pacman&searchon=names&suite=all§ion=all |
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＼爆笑／ |
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哈哈哈.. |
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如果您正在运行 Ubuntu，请尽量使用像 aptitude 或者 synaptic 一样的软件包管理器，代替人工手动操作的方式从这个网页下载并安装软件包。 您可以使用以下列表中的任何一个源镜像只要往您的 /etc/apt/sources.list 文件中像下面这样添加一行: deb http://cz.archive.ubuntu.com/ubuntu kinetic main universe |
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一般推荐 aptitude、自动解决依赖的能力比 apt-get 好不少、代价就是反应比较慢。 |
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综合考虑，还是用archlinux的docker比较好。原因有二：
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@nyfair 话说fakeroot怎么用呢。这个workflow脚本怎么改呢。 |
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两位大佬有啥好的建议木有？ |
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不懂 cmake （ |
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不懂meson |
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找到原因了。因为在 |
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For cross-compiling I believe you will need a dedicated 'makepkg.conf'. |
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FYI, https://wiki.archlinux.org/title/MinGW_package_guidelines
LIU Hao ***@***.***> 于 2023年7月28日周五 10:56写道：
… For cross-compiling I believe you will need a dedicated 'makepkg.conf'.
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简单把/etc/makepkg.conf里的 |
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不熟 ABS ，但是 |
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Technically speaking, '/etc/makepkg.conf' is for building native (Linux) packages only. |
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@nyfair @lhmouse Done! |
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交叉编译固然是快，问题是没法测。当然可以用 wine 不过那种不算交叉编译。 |
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我以前试过用wine做pgo优化，发现根本是负优化
LIU Hao ***@***.***> 于 2023年8月8日周二 23:00写道：
… 交叉编译固然是快，问题是没法测。当然可以用 wine 不过那种不算交叉编译。
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话说llvm-clang支持MCF线程现在有进展吗？ |
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无。上次问了 MaskRay 他也不知道应该改哪，后来就没问了。 |
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好吧。 |
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我编译MPV用的GCC一直是从你这个网站下载的：https://gcc-mcf.lhmouse.com/
经过测试20230323到20230419这几个包编译MPV相关组件时总有几个编译不成功，不知道是哪里的问题，特来请教。
20230307这版是可以成功编译的版本。
下面是用mingw-w64-gcc-mcf_20230419_13.0.1_x64-ucrt这个版本编译时的log，请帮我看下是哪里的问题。
https://github.com/eko5624/mpv-win64/actions/runs/4749246192/jobs/8436314731
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