Re: [PATCH v2 2/6] riscv: ftrace: align patchable functions to 4 Byte boundary

Andy Chiu writes: > We are changing ftrace code patching in order to remove dependency from > stop_machine() and enable kernel preemption. This requires us to align > functions entry at a 4-B align address. > > However, -falign-functions on older versions of GCC alone was not strong > enoungh to

[PATCH v2 2/6] riscv: ftrace: align patchable functions to 4 Byte boundary

We are changing ftrace code patching in order to remove dependency from stop_machine() and enable kernel preemption. This requires us to align functions entry at a 4-B align address. However, -falign-functions on older versions of GCC alone was not strong enoungh to align all functions. In fact, c