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Cider Isn't Darwin Emulation, Really
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137/* $NetBSD: abi.h,v 1.1 2001/06/19 00:26:29 fvdl Exp $ */
/* * Written by Frank van der Linden (fvdl@wasabisystems.com) */
/* * The x86-64 ABI specifies that float, double and long double * arguments are passed in SSE2 (xmm) registers. Unfortunately, * there is no way to push those on to the FP stack, which is * where he fancier instructions get their arguments from. * * Define some prologues and epilogues to store and retrieve * xmm regs to local variables. */
//// Define some overrideable constants// Default settings are for minimum stack frame, all arguments are long double//// LOCAL_STACK_SIZE -- number of bytes in addition to the return pointer that the stack frame holds// FIRST_ARG_SIZE -- number of bytes used on the stack by the first argument (if passed on the stack)// SECOND_ARG_SIZE -- number of bytes used on the stack by the second argument (if passed on the stack)//#ifndef LOCAL_STACK_SIZE #define LOCAL_STACK_SIZE 0#endif#ifndef FIRST_ARG_SIZE #define FIRST_ARG_SIZE 16#endif#ifndef SECOND_ARG_SIZE #define SECOND_ARG_SIZE 16#endif
#if defined( __LP64__ ) #define FRAME_SIZE 8 /* sizeof( void*) */ #define STACKP %rsp #define BASEP %rbp #define AX_P %rax #define BX_P %rbx #define CX_P %rcx #define DX_P %rdx #define SIGN_EXTEND_EAX cdqe #define ADDP addq #define CALLP callq #define FISTPP fistpll #define FISTTPP fisttpll #define MOVP movq #define NEGP negq #define SUBP subq #define XORP xorq#else #define FRAME_SIZE 4 /* sizeof( void*) */ #define STACKP %esp #define BASEP %ebp #define AX_P %eax #define BX_P %ebx #define CX_P %ecx #define DX_P %edx #define SIGN_EXTEND_EAX #define ADDP addl #define FISTPP fistpl #define FISTTPP fisttpl #define MOVP movl #define NEGP negl #define SUBP subl #define XORP xorl #define CALLP calll#endif
#define FIRST_ARG_OFFSET (FRAME_SIZE + LOCAL_STACK_SIZE)#define SECOND_ARG_OFFSET (FIRST_ARG_OFFSET + FIRST_ARG_SIZE)#define THIRD_ARG_OFFSET (SECOND_ARG_OFFSET + SECOND_ARG_SIZE)
/*#ifdef __LP64__
#error these interfaces appear to violate the red zone
#define ARG_LONG_DOUBLE_ONE -4(%esp) #define ARG_LONG_DOUBLE_TWO -20(%esp) #define ARG_DOUBLE_ONE -8(%rsp) #define ARG_DOUBLE_TWO -16(%rsp) #define ARG_FLOAT_ONE -4(%rsp) #define ARG_FLOAT_TWO -8(%rsp)
#define XMM_ONE_ARG_LONG_DOUBLE_PROLOGUE #define XMM_TWO_ARG_LONG_DOUBLE_PROLOGUE
#define XMM_ONE_ARG_DOUBLE_PROLOGUE \ movsd %xmm0, ARG_DOUBLE_ONE #define XMM_TWO_ARG_DOUBLE_PROLOGUE \ movsd %xmm0, ARG_DOUBLE_ONE ; \ movsd %xmm1, ARG_DOUBLE_TWO
#define XMM_ONE_ARG_FLOAT_PROLOGUE \ movss %xmm0, ARG_FLOAT_ONE
#define XMM_TWO_ARG_FLOAT_PROLOGUE \ movss %xmm0, ARG_FLOAT_ONE ; \ movss %xmm1, ARG_FLOAT_TWO
#define XMM_LONG_DOUBLE_EPILOGUE
#define XMM_DOUBLE_EPILOGUE \ fstpl ARG_DOUBLE_ONE ; \ movsd ARG_DOUBLE_ONE, %xmm0
#define XMM_FLOAT_EPILOGUE \ fstps ARG_FLOAT_ONE ; \ movss ARG_FLOAT_ONE, %xmm0 #else
#define ARG_LONG_DOUBLE_ONE 4(%esp) #define ARG_LONG_DOUBLE_TWO 20(%esp) #define ARG_DOUBLE_ONE 4(%esp) #define ARG_DOUBLE_TWO 12(%esp) #define ARG_FLOAT_ONE 4(%esp) #define ARG_FLOAT_TWO 8(%esp)
#define XMM_ONE_ARG_LONG_DOUBLE_PROLOGUE #define XMM_TWO_ARG_LONG_DOUBLE_PROLOGUE #define XMM_ONE_ARG_DOUBLE_PROLOGUE #define XMM_TWO_ARG_DOUBLE_PROLOGUE #define XMM_ONE_ARG_FLOAT_PROLOGUE #define XMM_TWO_ARG_FLOAT_PROLOGUE
#define XMM_LONG_DOUBLE_EPILOGUE #define XMM_DOUBLE_EPILOGUE #define XMM_FLOAT_EPILOGUE
#endif*/