LSS_BODY_ASM4 1067 third_party/tcmalloc/chromium/src/base/linux_syscall_support.h #undef LSS_BODY_ASM4 LSS_BODY_ASM4 1074 third_party/tcmalloc/chromium/src/base/linux_syscall_support.h #define LSS_BODY_ASM4 LSS_BODY_ASM3 "movq %5,%%r10;"