gem5 syscall emulation arm C hello world fails with “fatal: syscall gettid (#224) unimplemented”

Question

I am having the following error in gem5. This happens in ARM only. With X86 I see some syscalls being ignored but none causing a fatal error.

tomas@ubuntu:~/gem5         


        

Answer 1

uclibc is the answer for compiling for gem5. It doesn't use a bunch of syscalls that glibc uses and that gem5 doesn't have implemented. So using crosstool-ng and arm-unknown-linux-uclibcgnueabi solved the issue.