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I wonder if someone managed to compile the Linux kernel with some other compiler than gcc. Or if someone have ever tried? Question may seem to be silly or academic, but it arose when I thought about answers to: Are C++ int operations atomic on the mips architecture
It seems that the atomicity of some operations depends not only on the cpu architecture, but also on used compiler. So, I wonder if in Linux world some compiler other than gcc even exists.
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WSL 2 not only loads a native Linux Kernel, the image of the Linux Kernel is in the directory C:\WINDOWS\System32\lxss\tools\kernel, but it also gives us the option of loading a customized Linux kernel. That's right, we can compile and customize our own kernel to be loaded into WSL 2.
GCC, formerly for "GNU C Compiler", has grown over times to support many languages such as C ( gcc ), C++ ( g++ ), Objective-C, Objective-C++, Java ( gcj ), Fortran ( gfortran ), Ada ( gnat ), Go ( gccgo ), OpenMP, Cilk Plus, and OpenAcc. It is now referred to as "GNU Compiler Collection".
GCC is an Acronym for “GNU Compiler Collection”. It is a collection of compilers for C, C++, Fortran and other tools. GCC compiler is also used for building the Linux kernel and the same one is ships as standard on most GNU/Linux based systems.
Linux explicitly depends on some gcc extensions, so any other compiler must be compatible with the needed extensions, in that case.
This is not a "no", since it's of course not impossible for a separate compiler vendor/developer to track gcc's extensions, just a data point that might help you search.
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At some point tcc would process and run the linux kernel source. SO that would be a yes, I guess.
::Hat tip to ephemient in the comments.::
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