Re: Proposal: Simplify or Remove Compiler Version Details from Kernel Banner

On 13 Mar 2026, at 12:07, Haowu Ge(葛豪武) <gehaowu@bitmoe.com> wrote:
> 
>     Given that FreeBSD now exclusively uses Clang, the full compiler version string—particularly the part containing the GitHub URL—originally introduced to support GCC/Clang coexistence,

You can still compile FreeBSD with gcc, if you want. The compiler version string inserted into the kernel's banner is simply the first line of "$CC -v" output. The linker version string is handled similarly.

The way clang prints its version information is determined by upstream, see https://github.com/llvm/llvm-project/blob/main/clang/lib/Basic/Version.cpp.

The FreeBSD version of clang uses almost the same format as upstream, except for the following differences:
* We set CLANG_VENDOR to "FreeBSD".
* We use the "git describe" version of the commit hash, since it is more informative than a long string of hex digits.

-Dimitry