Force jump table inclusion

Created by: silabs-kjetil

Hi,

Is there a way to force the linker to include the Zcmt jump table? I am trying to build some projects using the Zcmt extension but the linker does not seem to be adding the jump table in my specific case. To test this issue I created some other small projects and it seems like the jump table is added in some cases but not in all cases.

For instance if I create a small hello-world project using printf() and linking with newlib libc.a then the jump table is added and used, however if I link the same application with newlib-nano libc_nano.a then the jump table is not included. What is triggering the inclusion of the jump table in some cases and not in others?