// void gosave(Gobuf*) // save state in Gobuf; setjmp TEXT runtime·gosave(SB), NOSPLIT, $0-8 MOVQ buf+0(FP), AX // gobuf LEAQ buf+0(FP), BX // caller's SP MOVQ BX, gobuf_sp(AX) MOVQ 0(SP), BX // caller's PC MOVQ BX, gobuf_pc(AX) MOVQ $0, gobuf_ret(AX) MOVQ BP, gobuf_bp(AX) // Assert ctxt is zero. See func save. MOVQ gobuf_ctxt(AX), BX TESTQ BX, BX JZ 2(PC) CALL runtime·badctxt(SB) get_tls(CX) MOVQ g(CX), BX MOVQ BX, gobuf_g(AX) RET
why dose these code(`LEAQ buf+0(FP), BX // caller's SP`) can get caller's SP? (these code are from golang 1.8 asm_amd64.s) and where could I find some description for golang's assembler instruction set. -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
