On 7/18/2022 9:52 PM, Jon Hunter wrote: [..] > > This change appears to be causing the build to fail ... > > /tmp/cc52xO0c.s: Assembler messages: > /tmp/cc52xO0c.s:8: Error: operand 1 should be an integer register -- > `mov lr,x9' > /tmp/cc52xO0c.s:7: Error: undefined symbol lr used as an immediate value > make[2]: *** [scripts/Makefile.build:250: arch/arm64/net/bpf_jit_comp.o] > Error 1 > make[1]: *** [scripts/Makefile.build:525: arch/arm64/net] Error 2 > > Let me know if you have any thoughts. > Sorry for this failure, but I can't reproduce it. I guess maybe your assembler doesn't recognize "lr". Could you give a try to replace "lr" with "x30"? #if IS_ENABLED(CONFIG_ARM64_BTI_KERNEL) " bti j\n" /* dummy_tramp is called via "br x10" */ #endif -" mov x10, lr\n" -" mov lr, x9\n" +" mov x10, x30\n" +" mov x30, x9\n" " ret x10\n" " .size dummy_tramp, .-dummy_tramp\n" " .popsection\n Thanks. > Cheers > Jon >
