- PTREGSCALL stub_clone, sys_clone
- PTREGSCALL stub_fork, sys_fork
- PTREGSCALL stub_vfork, sys_vfork
- PTREGSCALL stub_rt_sigsuspend, sys_rt_sigsuspend
- PTREGSCALL stub_sigaltstack, sys_sigaltstack
- PTREGSCALL stub_iopl, sys_iopl
+ PTREGSCALL stub_clone, sys_clone, %r8
+ PTREGSCALL stub_fork, sys_fork, %rdi
+ PTREGSCALL stub_vfork, sys_vfork, %rdi
+ PTREGSCALL stub_rt_sigsuspend, sys_rt_sigsuspend, %rdx
+ PTREGSCALL stub_sigaltstack, sys_sigaltstack, %rdx
+ PTREGSCALL stub_iopl, sys_iopl, %rsi