REG_FS             19 src/pkg/runtime/signal_netbsd_386.h #define SIG_FS(info, ctxt) (SIG_REGS(ctxt).__gregs[REG_FS])
REG_FS             27 src/pkg/runtime/signal_netbsd_amd64.h #define SIG_FS(info, ctxt) (SIG_REGS(ctxt).__gregs[REG_FS])
REG_FS             27 src/pkg/runtime/signal_solaris_amd64.h #define SIG_FS(info, ctxt) (SIG_REGS(ctxt).gregs[REG_FS])