On Fri, Sep 06, 2024 at 09:30:26 -0400, David Malcolm wrote: > On Fri, 2024-09-06 at 08:44 -0400, Ben Boeckel via Gcc wrote: > > Does this have (additional) implications for caching tools and > > modules? > > They cache diagnostic output, but if these other paths showing up or > > disappearing affects the output, the cache key should incorporate > > that > > as well. > > What kinds of caching tools are you thinking of?
`ccache`, `sccache`, etc. These tools try to detect if the compilation would be the same and place the object in its output location and report the cached output on stdout/stderr as performed in the original compile so that it acts "just like the compiler"'s execution. > I'm curious about caching of diagnostics, and how the diagnostics are > represented in the cache. I know `sccache` just stores it as a text blob; `ccache` is probably the same, but I haven't been in its code myself to know. --Ben
