asm_amd64.s

#include "textflag.h"
#include "go_asm.h"

#define    get_tls(r)    MOVQ TLS, r
#define    g(r)    0(r)(TLS*1)

TEXT ·GetG(SB),NOSPLIT,$0-8
    get_tls(CX)
    MOVQ    g(CX), AX
    MOVQ    AX, gp+0(FP)
    RET