On Mon, 27 Feb 2023, Johan Almbladh wrote: > > > R4000 is a 64-bit CPU, so the 32-bit JIT implementation will not be > > > used. From the Makefile: > > > > > > ifeq ($(CONFIG_32BIT),y) > > > obj-$(CONFIG_BPF_JIT) += bpf_jit_comp32.o > > > else > > > obj-$(CONFIG_BPF_JIT) += bpf_jit_comp64.o > > > endif > > > > It’s common practice to run 32-bit kernel on R4000 based systems to save some memory :-) > > Ok, I understand. Likewise: select CPU_R4000_WORKAROUNDS if 64BIT select CPU_R4400_WORKAROUNDS if 64BIT This only applies to 64-bit operations, which are not used in 32-bit code (one reason why these early silicon revisions were originally used with 32-bit software only). Maciej
