__seg             146 mtcp/NOTES-x86_64/tls-i386.h   ({ int __seg; __asm ("movw %%gs, %w0" : "=q" (__seg)); __seg & 0xffff; })
__seg             124 mtcp/NOTES-x86_64/tls-x86_64.h   ({ int __seg; __asm ("movl %%fs, %0" : "=q" (__seg)); __seg; })