This PR is splitting out the GCC 13.2.0 warning related changes from #16550, excluding the Oracle/devkit parts, for clarity and to make potential backports more straightforward.
GCC 13.2.0 generates two new warnings: * linux-aarch64-debug src/hotspot/os_cpu/linux_aarch64/atomic_linux_aarch64.hpp:203:66: error: 'long unsigned int __atomic_load_8(const volatile void*, int)' writing 8 bytes into a region of size 0 overflows the destination [-Werror=stringop-overflow=] I did not find any way to adjust the code to avoid this warning, so I instead chose to disable it in `CompileJvm.gmk` for linux-aarch64-(fast)debug only. * linux-zero src/hotspot/share/runtime/thread.hpp:579:77: error: storing the address of local variable 'rm' in '*_thr_current.Thread::_current_resource_mark' [-Werror=dangling-pointer=] Lots and lots of warnings related to ResourceMark. Thanks to @stefank for suggesting moving the ASSERT implementation of the ResourceMark constructor to the .cpp file. With that change there's no need to explicitly disable the warning. ------------- Commit messages: - 8319818: Address GCC 13.2.0 warnings (stringop-overflow and dangling-pointer) Changes: https://git.openjdk.org/jdk/pull/16584/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=16584&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8319818 Stats: 31 lines in 3 files changed: 18 ins; 10 del; 3 mod Patch: https://git.openjdk.org/jdk/pull/16584.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/16584/head:pull/16584 PR: https://git.openjdk.org/jdk/pull/16584