On s390x only, HotSpot is built by GCC with -ffunction-sections.
This means that debug helpers such as ps() and pfl() are not available. These helpers are extremely useful in debugging, so it makes no sense to omit them from debug builds.
This means that debug helpers such as ps() and pfl() are not available. These helpers are extremely useful in debugging, so it makes no sense to omit them from debug builds.