On Tue, 26 Aug 2025 14:05:33 GMT, Magnus Ihse Bursie <i...@openjdk.org> wrote:
> I have just one last request: How did you generate the last version? The > script that you used to read the `.d` files has disappeared somewhere along > the way, with no replacement. If you could do this with just some simple > command line with pipes etc, that command line should be added as a comment > to the PCH file. If you used a script, I think that script should be checked > in (in `make/scripts`; even if it is a Java file). Hi, the workflow now is something like this: - Create a new build configuration with `--with-extra-cxxflags` and `with-extra-cflags` set to `-ftime-trace -ftime-trace-granularity=500` - Make an hotspot build - Parse all the `.json` files (in `build/conf-name/hotspot/variant-server/libjvm/objs` with `ClangBuildAnalyzer --all` - Extract build information with `ClangBuildAnalyzer --analyze` - Get the top N headers with some bash scripting The last two steps are in this script: https://github.com/fandreuz/jdk-stuff/blob/master/update_precompiled I could possibly automate the whole thing, let me know if you think that would be useful. Alternatively, I can write some lines in `building.md`, or add all the steps to the ticket. ------------- PR Comment: https://git.openjdk.org/jdk/pull/26681#issuecomment-3224770938
