Ah, the driver is trying to use the native gcc built atomic ops like: __sync_val_compare_and_swap, but it seems the native aarch64 doesn't provide these builtin atomic primitives while they are in the cross compile toolchain. The issue can be resolved by replacing the **__sync_val_compare_and_swap** with **atomic_cmpxchg**. But don't know why the native aarch64 toolchain doesn't have those builtin atomic functions... On Tue, Jan 2, 2024 at 11:29 AM richard clark <richard.xnu.clark@xxxxxxxxx> wrote: > > Hi, > > I have a strong power arm64 box, and the linux distro is ubuntu 22.04, > the native gcc version is: > > $ gcc --version > gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0 > Copyright (C) 2021 Free Software Foundation, Inc. > This is free software; see the source for copying conditions. There is NO > warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. > > It will abort the kernel build with the complaint by 'make Image': > ld: Unexpected GOT/PLT entries detected! > ld: Unexpected run-time procedure linkages detected! > ld: ID map text too big or misaligned > ld: drivers/net/nvidia_eth.o: in function `osi_lock_irq_enabled': > osi_hal.c:(.text+0x3cc): undefined reference to `__aarch64_cas4_sync' > ... > > But the cross-compile with aarch64-linux-gnu-gcc on the x86 box > doesn't show the above error message. > Any comments/suggestions? Thanks very much! > > Richard
