为 i386 构建 crti.o [英] Building crti.o for i386

问题描述

我正在尝试构建一个交叉编译器，x86_64 是主机，i386 是目标.我得到了(所有常见的)crti.o:没有这样的文件错误.而不是从发行版中获取已经构建的 crti.o 和 crtn.o...我该如何从 glibc(或可能是 gcc)源中明确构建这些文件?

I am trying to build a cross-compiler with x86_64 being the host and i386 being the target. I'm getting the (all to common) crti.o: No such file error. Instead of grabbing an already built crti.o and crtn.o from a distro... how might I go about building these files explicitly from glibc (or possibly gcc) sources?

仅供参考，我很清楚 x86_64 编译器的 -m32 选项.我更喜欢只有 32 位的编译器环境.另外，我不想使用任何已经构建的 i386 编译器的原因是因为我计划根据我的测试需要混合和匹配 glibc/binutils/gcc 版本.

FYI, I am well aware of the -m32 option for x86_64 compilers. I'd prefer to just have a 32bit-only compiler environment. Also, the reason I don't want to use any of the gazillion already build i386 compilers is because I plan on mixing and matching glibc/binutils/gcc versions depending on my testing needs.

谢谢，陈兹

推荐答案

您确定您使用的交叉编译配置正确吗?应该是

Are you sure you're using configuring the cross-compile correctly? It should be

CBUILD = CHOST = x86_64-pc-linux-gnu
CTARGET = i386-pc-linux-gnu

当您在 x86_64 上运行构建时，编译器将在 x86_64 上运行，从而为 i386 生成代码.

as you're running a build on an x86_64, for a compiler to run on an x86_64, which generates code for an i386.

如果您使用 CHOST = i386-pc-linux-gnu，您将尝试生成 32 位二进制文​​件，这需要与 32 位 libc<链接/代码>.如果您已经拥有 32 位 libc，这很好，但听起来您没有.

If you used CHOST = i386-pc-linux-gnu, you'll be trying to generate 32-bit binaries, which will need to link with a 32-bit libc. Which is fine, if you already have a 32-bit libc, but it sounds like you don't.

即

$ tar xvjf gcc-*.tar.bz2
$ cd gcc-*/
$ mkdir build
$ cd build
$ ../configure --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --target=i386-pc-linux-gnu

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