On Mon, Feb 17, 2025 at 10:23 PM Miguel Ojeda <miguel.ojeda.sandonis@xxxxxxxxx> wrote: > > On Mon, Feb 10, 2025 at 6:11 PM Thomas Weißschuh <linux@xxxxxxxxxxxxxx> wrote: > > > > Remap source path prefixes in all output, including compiler > > diagnostics, debug information, macro expansions, etc. > > Hmm... We don't do all the cases in the C side -- the docs ask to use > `KCFLAGS` when one wants to remove them in the debug info: > > https://docs.kernel.org/kbuild/reproducible-builds.html#absolute-filenames > > I am not sure if there is a reason not to cover all cases in C (Cc'ing Ben). GCC manual mentions the below about the -fdebug-prefix-map=old=new "It can also be used to change an absolute path to a relative path by using . for new. This can give more reproducible builds, which are location independent, but may require an extra command to tell GDB where to find the source files." I guess "the extra command" might be a bit annoying. -- Best Regards Masahiro Yamada
