On Tue, 6 Jan 2026 16:02:51 GMT, Aleksey Shipilev <[email protected]> wrote:
>> [JDK-8374507](https://bugs.openjdk.org/browse/JDK-8374507) forced me to look >> into debug info sizes again. And I remembered that GCC actually have >> debug-level support, which can select what kind of diagnostic data is in the >> debug info. See: >> https://gcc.gnu.org/onlinedocs/gcc-4.5.0/gcc/Debugging-Options.html >> >> Allowing users to configure the debug level allows two major deviations from >> the default level (2): >> level=1: significantly reduce the debug info size, but still allow >> backtrace reconstruction >> level=3: add even more debugging info, like macro expansion, into the debug >> data >> >> This RFE upstreams the variant the patch that I have been using in >> builds.shipilev.net binaries: the fastdebug variants there are done with GCC >> level=1, greatly optimizing the debug binary sizes, while still maintaining >> the major benefit of debug binaries -- rich crash diagnostics. >> >> I threw in this option into current GHA builds to conserve more disk space >> on runners and/or transfers. >> >> I am open for bikeshedding on the option name :) > > Aleksey Shipilev has updated the pull request incrementally with one > additional commit since the last revision: > > Default to default, common the block, fail on incorrect debug level Looks like a nice resource usage improvement ------------- Marked as reviewed by clanger (Reviewer). PR Review: https://git.openjdk.org/jdk/pull/29056#pullrequestreview-3633515288
