This is a general cleanup and improvement of LTO, as well as a quick fix to remove a workaround in the Makefiles that disabled LTO for g1ParScanThreadState.cpp due to the old poisoning mechanism causing trouble. The \-Wno\-attribute\-warning change here can be removed once Kim's new poisoning solution is integrated.
- -fno-omit-frame-pointer is added to gcc to stop the linker from emitting code without the frame pointer
- -flto is set to $(JOBS) instead of auto to better match what the user requested
- -Gy is passed to the Microsoft compiler. This does not fully fix LTO under Microsoft, but prevents warnings about -LTCG:INCREMENTAL at least
- -fno-omit-frame-pointer is added to gcc to stop the linker from emitting code without the frame pointer
- -flto is set to $(JOBS) instead of auto to better match what the user requested
- -Gy is passed to the Microsoft compiler. This does not fully fix LTO under Microsoft, but prevents warnings about -LTCG:INCREMENTAL at least
- blocks
-
JDK-8348848 Link time optimization support [umbrella]
-
- Open
-
- relates to
-
JDK-8343698 Linux x86_64 lto build gives a lot of warnings and fails lto-wrapper: fatal error: make returned 2 exit status
-
- Resolved
-
-
-
- Open
-
- links to
-
Review(master)
openjdk/jdk/22464